CN203098643U

CN203098643U - Hydraulic brake clamp device

Info

Publication number: CN203098643U
Application number: CN 201320050985
Authority: CN
Inventors: 吴萌岭; 倪成权; 王敬祎; 宗全喜
Original assignee: Changzhou Pangfeng Electromechanical Science & Technology Co Ltd
Current assignee: Changzhou Pangfeng Electromechanical Science & Technology Co., Ltd.; China railway traffic equipment (Shanghai) Co., Ltd.
Priority date: 2013-01-29
Filing date: 2013-01-29
Publication date: 2013-07-31
Anticipated expiration: 2023-01-29

Abstract

The utility model provides a hydraulic brake clamp device which comprises a clamp base, a brake cylinder, a lever component, a lever pin and a clamp component. The brake cylinder mainly comprises a piston component, a push rod component, a brake adjustment component, a disc spring component and a manual adjustment shaft component. The clamp component mainly comprises a left clamp component, a right clamp component, a front brake pad and a rear brake pad. The clamp component and the brake cylinder are fixedly mounted on the clamp base, and the brake cylinder drives the clamp component through a lever to brake and release a brake disc of a train. According to the hydraulic brake clamp device, the brake clearance between the brake pads of a hydraulic clamp and wheels can be automatically adjusted, adjustment precision is good, adjustment efficiency is high, and the hydraulic brake clamp device is safe, reliable, compact in structure and capable of meeting mounting requirements of a railway vehicle with a low floor. The brake pads which are easy to consume can be replaced conveniently and quickly, and repairing time and cost are saved.

Description

A kind of hydraulic braking gripping mechanism

Technical field

The utility model relates to the rail vehicle braking device, is specifically related to the hydraulic braking clamp in the low-floor light rail vehicle braking device.

Background technique

Light rail is the abbreviation of light rail transit, and light rail transit then is a kind of of urban track traffic.According to international standard, the train of urban track traffic can be divided into A, B, three kinds of models of C, respectively corresponding 3 meters, 2.8 meters, 2.6 meters train width.The track traffic of the every A of selecting for use type or Type B train is called subway, adopts 5～8 joint marshalings; Select for use the track traffic of C type train to be called light rail transit, adopt 2～4 joint marshalings, the vehicle of train and marshalling have determined axletree weight and platform length.Subway and light rail all select for use gauge be 1435 millimeters international standard double track as train rail, the track specification of selecting for use with state iron train is identical, does not have the branch of so-called rail weight weight.Light rail and subway also can be distinguished on carrying capacity different, the per hour unidirectional cross section of common in the world general carrying capacity is called " subway (Metro) " greater than 30,000 person-times urban track traffic, and will be called " light rail (Light Rail) ", and will be called " tram car (Railroad Car) " less than 10,000 person-times street light rail less than 30,000 person-times track traffic.

The electric locomotive traction noise is little, pollution is few because of adopting in urban track traffic, big because of adopting electron controls technology and can pulling more piece compartment freight volume, because of the speed of on special railway, travelling fast, safe, because of the platform that can adopt various ways up and down the passenger and can share track flexibility height with other rail system, cost is low, also because of adopting electronic control and the dedicated track can running on time.Especially the low-floor light rail vehicle in the light rail transit need not to be provided with platform, makes things convenient for the passenger to get on or off the bus with it, particularly is convenient to some invalid passengers and children and gets on or off the bus and be favourably welcome.

And for low-floor light rail vehicle, not only car body structure and common subway car there are differences, and braking system also there are differences.Main cause is that the volume of wind regime braking system is excessive and can't be installed to the car body bottom of motor-car or trailer.And hydraulic braking sytem volume I is installed on the bogie nearby, and this is the original intention that the lowland wooden handcart adopts hydraulic system.The critical piece of described hydraulic braking sytem is the hydraulic braking gripping mechanism.

See Figure 32, a kind of working principle of prior art hydraulic braking gripping mechanism 8 is: the clamp pedestal 81b that fixedly installs the hydraulic braking gripping mechanism on the framework 81a of bogie, at the axletree 82a(moving axis of bogie or drag axle) go up that setting can be slided with respect to axletree in the axial direction and week upwards mutually spacing brake disc 83a(also have claim reel), on the clamp pedestal 81b hydraulic braking cylinder 82b is set, lever 83b, fixedly brake lining 84b and moving brake lining 85b.During braking, hydraulic system is by corresponding valve pressure release, when hydraulic oil flows out the cylinder body of master cylinder 82b, the piston rod of the piston 86b of master cylinder 82b is motion from inside to outside under the elastic force effect of cylinder inner spring 87b, and promote to rotate and make that the moving brake lining 85b that is fixed on lever 83b bottom is close and contact with brake disc 83a to brake disc 83a around lever pin 88b with its lever 83b that is dynamically connected, and promote brake disc 83a and slide and contact along axletree 82a in the same way, and by fixedly brake lining 84b and moving brake lining 85b progressively clamp brake disc brake disc 83a jointly and realize braking with fixing brake lining 84b.During alleviation, in the cylinder body of master cylinder 82b, charge into hydraulic oil (pressure is P), make piston 86b move towards the direction of compression cylinder inner spring 87b, and then the drive piston rod is retracted in the cylinder body of master cylinder 82b, and then drive lever 83b turns to moving brake lining 85b and brake disc 83a disengages, thereby realize alleviating.The stroke of above-mentioned piston 86b is less than the wear compensation that is used for brake lining 85b and brake disc 83a.

The vehicle of light rail systems operation is in operation, and need start continually and brake, and the quality of braking system is the safety of decision light rail vehicle operation directly.Thereby require the hydraulic braking gripping mechanism must compact structure, also require to install, dismounting and change brake lining etc. easily wearing details are easy to operate.But the brake lining of the hydraulic braking gripping mechanism that braking system adopted of low-floor light rail vehicle replacing at present is cumbersome, can not effectively satisfy the requirement of domestic light rail low floor vehicle.

The model utility content

The purpose of this utility model is: overcome the deficiencies in the prior art, a kind of compact structure is provided, is suitable for installation and maintenance and brake lining and changes the hydraulic braking gripping mechanism that is applicable to the low-floor light rail vehicle use for brake system easily.

The basic technical scheme of realizing the utility model purpose is: hydraulic braking gripping mechanism of the present utility model comprises master cylinder; Its structural feature is: also comprise clamp pedestal, leverage component, lever pin and grip module; Grip module mainly is made up of clamp left side assembly, the right assembly of clamp, preceding brake lining and back brake lining.

The clamp pedestal is the steel integral piece, has master cylinder assembly department, lock pin assembly department, lever pin left end assembly department and lever pin right-hand member assembly department; Lock pin assembly department comprises left lock pin assembly department and right lock pin assembly department; Lock pin installation position, a left side is in the left bottom of master cylinder assembly department, and right lock pin installation position is in the lower right of master cylinder assembly department, and lever pin left end installation position is in the preceding left of master cylinder assembly department, and lever pin right-hand member installation position is preceding right-hand in the master cylinder assembly department.

Master cylinder comprises casing component and the piston component, push-rod assembly and the dished spring assembly that all are arranged in the casing component and axis is all identical with the main axis of casing component; Master cylinder is fixedly connected on the master cylinder assembly department of clamp pedestal by its casing component; Piston component comprises auxiliary braking spare and release of brake piston; Master cylinder is provided with hydraulic oil first inner chamber, and this hydraulic oil first inner chamber forms by the space that is surrounded between casing component, auxiliary braking spare and the release of brake piston, and casing component is provided with the hydraulic oil first of hydraulic oil intracavity inter-connection and imports and exports; When hydraulic oil first inner chamber of master cylinder injected hydraulic oil, then the release of brake piston made the butterfly spring of dished spring assembly be in the state that tightens up of compression, made push-rod assembly be positioned at the position of withdrawal backward simultaneously; When the hydraulic oil pressure release in hydraulic oil first inner chamber of master cylinder, then butterfly spring is in the relaxation state of compression, the position that makes push-rod assembly be positioned to stretch out forward.

The preceding brake lining of grip module and back brake lining are tabular component, and all opening connection breach left are set at left end position separately, at right-hand member position separately sagittal connecting through hole are set; Before brake lining and the back brake lining all along about to the vertical setting.

The clamp left side assembly of grip module comprises left brake pad pin, left sleeve base, left return spring member and threaded pin; Left side return spring member is made of the left front spring seat, left return spring and the left back spring seat that link to each other successively according to the past order successively; Before brake lining and back brake lining divide front and back by separately be connected breach from right to left semi-surrounding be arranged on the left brake pad pin, and on the position between the brake lining at preceding brake lining and back of left brake pad pin, be with left sleeve base, left front spring seat, left return spring and left back spring seat successively, and the leading portion of left return spring and left front spring socket sleeve are on left sleeve base according to backward order in the past; The front end of left brake pad pin is arranged on the front portion of left lock pin assembly department of clamp pedestal, the rear end of left brake pad pin is arranged on the rear portion of left lock pin assembly department of clamp pedestal, and is fixed on the left lock pin assembly department of clamp pedestal by the one or both ends of respective threads pin with the front end and back end of left brake pad pin.

The right assembly of the clamp of grip module comprises right brake pad pin, right sleeve base, right return spring member and threaded pin; Right return spring member is made of the right front spring seat, right return spring and the right back spring seat that link to each other successively according to the past order successively; Preceding brake lining and brake lining branch front and back, back are enclosed within on the right brake pad pin by connecting through hole separately, and on the position between the brake lining at preceding brake lining and back of right brake pad pin, be with right sleeve base, right front spring seat, right return spring and right back spring seat successively, and the leading portion of right return spring and right front spring socket sleeve are on right sleeve base according to backward order in the past; The front end of right brake pad pin is arranged on the front portion of right lock pin assembly department of clamp pedestal, the rear end of right brake pad pin is arranged on the rear portion of right lock pin assembly department of clamp pedestal, and is fixed on the right lock pin assembly department of clamp pedestal by the one or both ends of respective threads pin with the front end and back end of right brake pad pin.

Leverage component and lever pin are fixed together; Leverage component is along the upward and downward setting, the axis of lever pin along about to setting; The left end of lever pin stretches in the lever pin left end assembly department of clamp pedestal, and is rotationally connected with lever pin left end assembly department; The right-hand member of lever pin stretches in the lever pin right-hand member assembly department of clamp pedestal, and is rotationally connected with lever pin right-hand member assembly department; Leverage component is contacted with the push-rod assembly front end position of master cylinder by the rear side on its top, and leverage component is contacted with the middle part of the leading flank of the preceding brake lining of grip module by the rear side of its underpart.

First technological scheme on the basis of above-mentioned basic technical scheme is: the master cylinder assembly department of described clamp pedestal comprises substrate and mounting plate; Substrate is horizontally disposed with; The mounting plate vertical is provided with, and its plate body is provided with the sagittal through hole as the central hole of master cylinder assembly department; Also be provided with corresponding sagittal installation screw on the plate body of mounting plate; Mounting plate is connected from the top on the front portion of upside of substrate.

Lock pin assembly department comprises left connecting base, right connecting base, left front seat, right front seat and back seat; Left side connecting base is connected from left on the left side of substrate of master cylinder assembly department; Right connecting base is from the right side of the right-hand substrate that is connected the master cylinder assembly department; Left front seat is connected from the below on the front portion of downside of left connecting base, and right front seat is connected from the below on the front portion of downside of right connecting base; Back seat is connected from the below on the rear portion of downside of substrate, and its left end position is connected from the below on the rear portion of downside of left connecting base, and its right-hand member position is connected from the below on the rear portion of downside of right connecting base; Thereby the left end position of left front seat and back seat constitutes the left lock pin assembly department of lock pin assembly department jointly, and the right-hand member position of right front seat and back seat constitutes the right lock pin assembly department of lock pin assembly department jointly.

Left front seat is provided with left front mounting hole, left front through hole and left front blind hole; The axis of left front mounting hole along front and back to setting; The axis of left front through hole and left front blind hole identical and along about to setting, and the axis of left front through hole is also along the radially setting of left front mounting hole, and left front blind hole is provided with internal thread; Right front seat is provided with right front mounting hole, right front through hole and right front blind hole; The axis of right front mounting hole along front and back to setting; The axis of right front through hole and right front blind hole identical and along about to setting, and the axis of right front through hole is also along the radially setting of right front mounting hole, and right front blind hole is provided with internal thread; The left end position of back seat is provided with left back mounting hole, and the right-hand member position of back seat is provided with right back mounting hole, and the left front mounting hole coaxial line of left back mounting hole and left front seat, the right front mounting hole coaxial line of right back mounting hole and right front seat; The left end position of back seat also is provided with left back through hole and left back blind hole; The axis of left back through hole and left back blind hole identical and along about to setting, and the axis of left back through hole is along the radially setting of left back mounting hole, and left back blind hole is provided with internal thread; The right-hand member position of back seat also is provided with right back through hole and right back blind hole; The axis of right back through hole and right back blind hole identical and along about to setting, and the axis of right back through hole is along the radially setting of right back mounting hole, and right back blind hole is provided with internal thread.

The rear and front end of the left brake pad pin of clamp left side assembly and the right brake pad pin of the right assembly of clamp respectively is provided with a pin-and-hole.Left front threaded pin screws in the left front blind hole of left front seat, thereby the front end of left brake pad pin is fixed on left front after passing the pin-and-hole of front end of left front through hole, left brake pad pin of left front seat from left to right successively; After left back threaded pin passes the pin-and-hole of rear end of left back through hole, left brake pad pin of back seat from left to right successively, screw in the left back blind hole of back seat, thereby the rear end of left brake pad pin is fixed on the left part of back seat of clamp pedestal, also promptly makes the left brake pad pin be fixed on the left lock pin assembly department of clamp pedestal.Right front threaded pin screws in the right front blind hole of right front seat after passing the pin-and-hole of front end of right front through hole, right brake pad pin of right front seat from right to left successively, thereby the front end of right brake pad pin is fixed on right front of clamp pedestal 1; After right back threaded pin passes the pin-and-hole of rear end of right back through hole, right brake pad pin of back seat from right to left successively, screw in the right back blind hole of back seat, thereby the rear end of right brake pad pin is fixed on the right part of back seat of clamp pedestal, also promptly makes the right brake pad pin be fixed on the right lock pin assembly department of clamp pedestal.

Second technological scheme on the basis of above-mentioned basic technical scheme is: the master cylinder assembly department of described clamp pedestal comprises substrate and mounting plate; Substrate is horizontally disposed with; The mounting plate vertical is provided with, and its plate body is provided with the sagittal through hole as the central hole of master cylinder assembly department; Also be provided with corresponding sagittal installation screw on the plate body of mounting plate; Mounting plate is connected from the top on the front portion of upside of substrate.

Left front seat is provided with left front mounting hole; The axis of left front mounting hole along front and back to setting; Right front seat is provided with right front mounting hole; The axis of right front mounting hole along front and back to setting; The left end position of back seat is provided with left back mounting hole, and the right-hand member position of back seat is provided with right back mounting hole, and the left front mounting hole coaxial line of left back mounting hole and left front seat, the right front mounting hole coaxial line of right back mounting hole and right front seat; The left end position of back seat also is provided with left back through hole and left back blind hole; The axis of left back through hole and left back blind hole identical and along about to setting, and the axis of left back through hole is along the radially setting of left back mounting hole, and left back blind hole is provided with internal thread; The right-hand member position of back seat also is provided with right back through hole and right back blind hole; The axis of right back through hole and right back blind hole identical and along about to setting, and the axis of right back through hole is along the radially setting of right back mounting hole, and right back blind hole is provided with internal thread.

The rear end of the left brake pad pin of clamp left side assembly and the right brake pad pin of the right assembly of clamp respectively is provided with a pin-and-hole.After left back threaded pin passes the pin-and-hole of rear end of left back through hole, left brake pad pin of back seat from left to right successively, screw in the left back blind hole of back seat, thereby the rear end of left brake pad pin is fixed on the left part of back seat of clamp pedestal, also promptly makes the left brake pad pin be fixed on the left lock pin assembly department of clamp pedestal.After right back threaded pin passes the pin-and-hole of rear end of right back through hole, right brake pad pin of back seat from right to left successively, screw in the right back blind hole of back seat, thereby the rear end of right brake pad pin is fixed on the right part of back seat of clamp pedestal, also promptly makes the right brake pad pin be fixed on the right lock pin assembly department of clamp pedestal.

The first further technological scheme on the basis of above-mentioned first technological scheme is: the clamp left side assembly of described grip module also comprises left front anti-releasing and left back anti-releasing; The right assembly of clamp also comprises right front anti-releasing and right back anti-releasing; Each anti-releasing is tabular steel integral piece; Each anti-shape that releases is all identical with size, and all mainly being linked to each other with limiting board by connecting plate constitutes; Limiting board is the bending state with connecting plate and links to each other; Connecting plate is provided with the attachment hole that is used to pass threaded pin.

Left front anti-releasing is arranged between the left front seat of left front threaded pin and clamp pedestal, and left front anti-releasing be pressed abd fixed on the left front seat by left front threaded pin, and the ear end face of the left front anti-limiting board that releases contacts with left front front-end face; Between the left end position of the left back anti-back seat that is arranged on left back threaded pin and clamp pedestal of releasing, and on the left end position of the left back anti-back seat that is pressed abd fixed on by left back threaded pin of releasing, and the front-end face of the left back anti-limiting board that releases contacts with the ear end face at the left end position of back seat; Right front anti-releasing is arranged between the right front seat of right front threaded pin and clamp pedestal, and right front anti-releasing be pressed abd fixed on the right front seat by right front threaded pin, and the ear end face of the right front anti-limiting board that releases contacts with right front front-end face; Between the right-hand member position of the right back anti-back seat that is arranged on right back threaded pin and clamp pedestal of releasing, and on the right-hand member position of the right back anti-back seat that is pressed abd fixed on by right back threaded pin of releasing, and the front-end face of the right back anti-limiting board that releases contacts with the ear end face at the right-hand member position of back seat.

The second further technological scheme on the basis of above-mentioned second technological scheme is: the clamp left side assembly of described grip module also comprises left back anti-releasing; The right assembly of clamp also comprises right back anti-releasing; Each anti-releasing is tabular steel integral piece; Each anti-shape that releases is all identical with size, and all mainly being linked to each other with limiting board by connecting plate constitutes; Limiting board is the bending state with connecting plate and links to each other; Connecting plate is provided with the attachment hole that is used to pass threaded pin.

The further technological scheme of the technological scheme on above-mentioned each basic technical scheme is: lever pin left end assembly department comprises left sideboard and left fitting seat; Left sideboard is connected from left by its rear end, right side on the left side of mounting plate of master cylinder assembly department, and is linked to each other with the right side of the left connecting base of lock pin assembly department is anterior by its rear end, left side; A left side fitting seat be provided with as about lever pin left end mounting hole to through hole; Left side fitting seat is connected from the below by the upside of the front portion at its left end position on the downside of front portion of left sideboard, and by the left side at the rear portion at its left end position from the right side at the right-hand rear portion that is connected left sideboard.

Lever pin right-hand member assembly department comprises right sideboard and right fitting seat; Right sideboard, and is linked to each other with the left side of the right connecting base of lock pin assembly department is anterior by its rear end, right side from the right side of the right-hand mounting plate that is connected the master cylinder assembly department by its rear end, left side; Right fitting seat be provided with as about lever pin right-hand member mounting hole to through hole, and this lever pin right-hand member mounting hole and lever pin left end mounting hole coaxial line; Right fitting seat is connected from the below by the upside of the front portion at its right-hand member position on the downside of front portion of right sideboard, and is connected from left by the right side at the rear portion at its right-hand member position on the left side at rear portion of right sideboard.

In the above-mentioned further technological scheme, also comprise left cover and right cover plate; Described left cover is fixed on the left side of left fitting seat from left, and covers lever pin left end mounting hole from left; Right cover plate is from the right-hand right side that is fixed on right fitting seat, and from the right-hand lever pin right-hand member mounting hole that covers.

The 3rd technological scheme on the basis of above-mentioned basic technical scheme is: push-rod assembly comprises push rod; The week of the back segment of push rod is provided with outside thread laterally, and the back segment of push rod is provided with opening rear chamber backward; The inwall of rear chamber is provided with the pin groove towards central axial line, and described pin groove rearward connects push rod.

Lock transfers assembly to comprise lock accent mandrel; Lock transfers the circumferential outside left of mandrel to be provided with the round platform portion that is positioned at the front portion, and lock transfers the central lumen of mandrel to be provided with internal thread, and lock transfers mandrel to be matched with the outside thread of push rod by this internal thread.

Dished spring assembly comprises dish spring abutment and butterfly spring; The dish spring abutment is provided with the front hole section that is positioned at anterior frustoconic shape, and the dish spring abutment is enclosed within lock by this front hole section and transfers in the round platform portion of front portion of mandrel, and cooperatively interacts; Butterfly spring is arranged between dish spring abutment and the casing component.

The hand adjustment shaft assembly comprises hand adjustment axle, straight pin, packing ring and bolt; The hand adjustment axle be positioned at anterior main shaft section be provided with opening towards week laterally and pin groove that connect the place ahead, the main shaft section also is provided with opening center screw forward along central axial line; Straight pin inserts in the pin groove of main shaft section of hand adjustment axle backward in the past; After bolt passes packing ring backward in the past, be tightened on the hand adjustment axle in the center screw of screw-in hand adjustment axle and with packing ring, and make packing ring block straight pin from the place ahead, also make hand adjustment axle, straight pin, packing ring and bolt connect into an integrated member; The hand adjustment axle of hand adjustment shaft assembly is rotationally connected with respect to the casing component sealed type, and limited in the axial direction and can not move vertically; The front portion of hand adjustment axle is arranged in the rear chamber of push rod, and straight pin is arranged in the pin groove of push rod, and straight pin and push rod are upwards spacing mutually in week, and push rod with respect to before and after hand adjustment axle and the straight pin to being slidingly matched; The rear portion of hand adjustment axle and casing component sealing are dynamically connected, and casing component is exposed at position, its rear end backward.

The 4th technological scheme on the basis of above-mentioned the 3rd technological scheme is: described casing component comprises according to from the back to the preceding airtight successively rear-bank rotor housing that is fixedly linked, central housing with brake cylinder casing; Rear-bank rotor housing, central housing and brake cylinder casing are the cast steel integral piece that is provided with the central lumen before and after connecting, and three's central axial line is same axis, and this axis also is the central axial line of casing component.

Rear-bank rotor housing comprises radially from inside to outside around central axial line setting and continuous successively central fitting seat, cover plate portion and connecting cylinder portion; The overall stepped cylindrical shape of central authorities' fitting seat, its central lumen also is the central lumen of rear-bank rotor housing; The circumferential inside line of the formation central lumen of central authorities' fitting seat is provided with inboard first step, inboard second step and inboard the 3rd step successively according to the past order backward, and the internal diameter of each step reduces by rank successively; The inwall of inboard first step is provided with internal thread; The inwall of inboard second step is provided with 2 inboard grooves that are used to install the ring of seal ring.

The hand adjustment axle is the cylindrical step-like steel integral piece of main body; The hand adjustment axle constitutes according to being linked to each other successively with the main shaft section by position, rear end, the portion that is tightly connected, stop part, joint successively from back to preceding order; The position, rear end is a hexagonal prism shape, and the portion that is tightly connected, stop part, joint and main shaft section are all cylindrical substantially; The pin groove of described main shaft section is provided with 2 of symmetry; The cross section of pin groove is arc; Described straight pin is provided with identical 2; The pin groove that matches with straight pin of push rod has 2; The hand adjustment axle is stretched into by its portion of being tightly connected in inboard the 3rd step of central fitting seat of rear-bank rotor housing in the past backward, and be connected with the rear-bank rotor housing sealed rotational by 2 seal rings that are arranged in the corresponding inboard groove, the stop part of hand adjustment axle is arranged in the inboard second step of the central fitting seat of rear-bank rotor housing, and end face contacts with the end face towards the place ahead of described inboard the 3rd step thereafter.

The hand adjustment shaft assembly also comprises guide holder and axle sleeve; Guide holder and axle sleeve are the steel integral piece; Guide holder is made up of to the ring plate that the vertical of body that is provided with and the coaxial line that is positioned at rear side is provided with along front and back the axis that is positioned at the front side; Guide holder is enclosed within on the hand adjustment axle and the joint its Spielpassung by its body, and the ear end face of the ring plate of guide holder contacts with the front-end face towards the place ahead of the stop part of hand adjustment axle; Axle sleeve is made up of annular barrier plate, outer cylinder body, annular connecting plate and central sleeve; Outer cylinder body is cylindrical substantially, and its back segment is provided with outside thread; All the axis with outer cylinder body is identical for the axis of annular barrier plate, annular connecting plate and central sleeve, and this axis also is the medial axis of axle sleeve; Central sleeve and annular connecting plate all are arranged in outer cylinder body, and the setting of annular connecting plate vertical, are connected between central sleeve and the outer cylinder body; The external thread rotary of the outer cylinder body of axle sleeve is combined on the internal thread of inboard first step of central fitting seat of rear-bank rotor housing, thereby make axle sleeve be fixed on the central fitting seat of rear-bank rotor housing, the central sleeve of axle sleeve is enclosed within on the body of guide holder, and the annular connecting plate ear end face of axle sleeve contacts with the front-end face of the ring plate of guide holder, thereby makes that the hand adjustment axle is limited in the axial direction and can not move vertically.

The 5th technological scheme on the basis of above-mentioned the 4th technological scheme is: the cover plate portion of rear-bank rotor housing is the ring plate, around central fitting seat setting; The circumferential outer shape of the connecting cylinder portion of rear-bank rotor housing also is the circumferential outer shape of rear-bank rotor housing, this circumferential outer shape is same as the circumferential outer shape of square column of band fillet, and connecting cylinder portion constitutes according to linking to each other successively with the front end position to position, rear end, intermediate portion that preceding order is increased by rank by internal diameter from the back; Connecting cylinder portion is provided with around cover plate portion by position, its rear end.

Central housing totally is the tubular of square-outside and round-inside, and the central lumen of central housing is the cylindrical step hole; Central housing is according to constituting from the back to preceding order by all linking to each other successively around back-end sealing portion, main part and the forward sealing portion of central axial line setting; Back-end sealing portion is cylindrical substantially; The circumferential outer shape of main part is same as the circumferential outer shape of the square column of band fillet, and the peripheral shape of its cross section is same as the peripheral shape of the cross section of rear-bank rotor housing; The circumferential outer shape of forward sealing portion is same as the circumferential outer shape of the square column of band fillet, and is same as the circumferential outer shape of main part.

Central housing is cooperated with the front end interdigit crack of the connecting cylinder portion of rear-bank rotor housing by its rear end sealed department, and the seal ring in the outside groove of the back-end sealing portion by being arranged on central housing is tightly connected between the two.

Brake cylinder casing totally is the tubular of square-outside and round-inside, and the central lumen of brake cylinder casing is the cylindrical step hole, and also be provided with the through hole of importing and exporting as hydraulic oil first on the brake cylinder casing barrel, first of this hydraulic oil is imported and exported first import and export of the hydraulic oil that also is casing component, and hydraulic oil first inner chamber is formed by the space that brake cylinder casing, auxiliary braking spare and release of brake piston are surrounded.

The circumferential outside left of brake cylinder casing constitutes according to being linked to each other successively with the front end joint by back-end sealing portion, main part from back to preceding order; The shape of described back-end sealing portion is same as cylindrical circumferential outer shape substantially; The shape of described main part is same as the circumferential outer shape of square column of band fillet, and the peripheral shape of its cross section is same as the circumferential outer shape of cross section of the main part of central housing; The shape of described front end joint is same as cylindrical circumferential outer shape.

Brake cylinder casing is by the back-end sealing portion of its circumferential outside left and the forward sealing portion Spielpassung of central housing, and the seal ring in the outside groove of the back-end sealing portion by being arranged on brake cylinder casing is tightly connected between the two.

The 6th technological scheme on the basis of above-mentioned the 5th technological scheme is: the auxiliary braking spare of described piston component is auxiliary braking piston and oil cylinder cover; Oil cylinder cover, auxiliary braking piston and release of brake piston set gradually according to order from front to back.

The release of brake piston is arranged in the brake cylinder casing of casing component, and the internal diameter Spielpassung of the 3rd stepped part of the external diameter of the outside the 3rd step of release of brake piston and the circumferential inside line of brake cylinder casing and being slidingly connected each other, and be dynamically connected by corresponding seal ring sealing between the two.

The auxiliary braking piston is arranged in the brake cylinder casing of casing component, and the internal diameter Spielpassung of the second step portion of the external diameter of auxiliary braking piston and the circumferential inside line of brake cylinder casing and being slidingly connected each other, and be dynamically connected by corresponding seal ring sealing between the two.

Back step, middle bench and front step that the circumferential outside left of oil cylinder cover 22-1 is increased by rank by external diameter successively according to from front to back order link to each other successively and constitute; And the radially outer of middle bench is for being the position of circular protrusion backward; The peripheral outer wall of the front step of oil cylinder cover is provided with outside thread; The cylindrical substantially step hole of the central lumen of oil cylinder cover.

Oil cylinder cover is arranged in the central lumen of brake cylinder casing of casing component, and the front step of oil cylinder cover is matched by the internal thread of the outside thread on its peripheral outer wall with the first step portion of the circumferential inside line of brake cylinder casing, thereby makes the oil cylinder cover screw thread be fixedly connected on the brake cylinder casing; The external diameter of the middle bench of oil cylinder cover intermittently cooperates with the internal diameter of the second step portion of the circumferential inside line of brake cylinder casing and is slidingly connected each other, and is dynamically connected by corresponding seal ring sealing between the two; The middle bench of oil cylinder cover also is oppositely arranged by the front-end face of the tube main body of the ear end face of its radially outer and auxiliary braking piston; The internal diameter Spielpassung of the tube main body of the external diameter of the back step of oil cylinder cover and auxiliary braking piston and being slidingly connected each other, and be dynamically connected by corresponding seal ring sealing between the two; The internal diameter of the back step of oil cylinder cover cooperates with the crest clearance of the outside first step of release of brake piston and is slidingly connected each other, and is dynamically connected by corresponding seal ring sealing between the two.

Hydraulic oil first inner chamber of master cylinder is formed by the space that brake cylinder casing, auxiliary braking piston and release of brake piston are surrounded; Master cylinder also is provided with hydraulic oil second inner chamber, and this hydraulic oil second inner chamber is formed by the space that brake cylinder casing, auxiliary braking piston and oil cylinder cover are surrounded, and also is provided with on the brake cylinder casing with second of the hydraulic oil of hydraulic oil second intracavity inter-connection and imports and exports.

The 7th technological scheme on the basis of above-mentioned the 6th technological scheme is: described push-rod assembly also comprises pressure seat, packing ring, pressure disk and shaft block ring; Described push rod, pressure seat, packing ring and pressure disk are according to setting gradually from back to preceding order; The central axial line of push rod, pressure seat and pressure disk is a same axis, and this axis also is the central axial line of push-rod assembly, and the central axial line of push-rod assembly is identical with the central axial line of piston component.

The anterior pedestal and the rear portion pedestal that link to each other successively before and after pressure seat comprises; Anterior pedestal stretches into the space that side plate centered on of pressure disk from the rear, and the trailing flank of packing ring contacts with the leading flank of the anterior pedestal of pressure seat; The leading flank of packing ring contacts with the trailing flank of the central disk body of pressure disk.

Described push rod is overall cylindrical steel integral piece, and the front end of push rod also is provided with opening preceding cavity forward, the week of the front end of push rod is provided with circlip groove laterally, and the preceding cavity of push rod is identical with the axis of rear chamber, and this axis also is the central axial line of push rod; Push rod tightly is enclosed within on pressure seat and rear portion its interference fit the pedestal by its preceding cavity; The leading portion of the body of rod of push rod is arranged in the central lumen of release of brake piston, and the internal diameter Spielpassung of inboard the 5th step of the external diameter of the leading portion of the body of rod of push rod and release of brake piston, and is dynamically connected by corresponding seal ring sealing between the two; Shaft block ring is arranged on the circlip groove place of push rod, and its front-end face contacts with the end face towards the rear at the circlip groove place of push rod, and end face contacts with the end face towards the place ahead of inboard the 5th step of release of brake piston thereafter.

The 8th technological scheme on the basis of above-mentioned the 7th technological scheme is: also comprise thrust ball bearing with flat seat and flare nut; Described lock transfers assembly to comprise that also first group is bumped pearl, lock and transfer nut, coupling and second group to bump pearl.

The circumferential outside left of the central fitting seat of rear-bank rotor housing is provided with outside first step, outside second step and the outside the 3rd step successively according to the past order backward.

The central axial line of thrust ball bearing with flat seat is identical with the central axial line of piston component; Thrust ball bearing with flat seat is fixed on inboard the 3rd step of release of brake piston by its seat ring that is positioned at the front side.

Lock transfers mandrel, lock to transfer nut and coupling to be equipped with central lumen before and after connecting, and three's central axial line is same axis, and this axis also is the central axial line that lock is transferred assembly, and lock transfers the central axial line of assembly identical with the central axial line of push-rod assembly.

Described lock transfers mandrel also to comprise preceding protuberance, joint and screw section; Preceding protuberance, round platform portion, joint and screw section link to each other successively according to order from front to back; The circumferential outer shape of screw section is the cylinder outside thread, and this outside thread is the outside thread of non-self-locking; Before protuberance be provided with opening and bump the pearl mounting hole towards 3 to 6 of the place ahead.

First group of quantity of bumping pearl transfers the quantity of bumping pearl mounting hole 24-2-6 of mandrel 24-2 identical with lock; The steel ball that respectively bumps pearl exposes the front-end face that lock is transferred the preceding protuberance of mandrel forward, and contacts with the blowout patche that is positioned at rear side of thrust ball bearing with flat seat.

Lock transfers nut totally cylindrical, and lock transfers the leading portion position of the central lumen of nut to be provided with the internal thread that is positioned at the non-self-locking on its inwall, the back segment that lock is transferred nut according to the interval angle that equates along the radial hole of bead of bumping that 3 to 6 circles are set; Lock transfers nut sleeve to transfer on the mandrel at lock, and by the internal thread of its non-self-locking by after screw forward at lock and transfer on the outside thread of non-self-locking of screw section of mandrel.

Coupling is the cylindrical shell that the rear end is connected with the ring barrier plate, and the middle part of described cylindrical shell partially the position, back according to the interval angle that equates along radial be provided with quantity and lock transfer nut bump the hole of bead identical bump the hole of bead, and respectively bump the size in the hole of bead and shape and lock accent nut to bump the hole of bead corresponding; The circumferential outer shape of the back segment of the cylindrical shell of coupling is a frustoconic shape; The central lumen of coupling is the cylindrical step hole; Coupling by after be enclosed within lock forward and transfer on the nut.

Second group of quantity of bumping pearl is identical with the quantity of bumping the hole of bead of coupling; Each bump second group on pearl bump the external diameter of shell of pearl and coupling bump that the hole of bead and lock transfer nut bump pearl mounting hole transition fit; Each shell that bumps pearl stretches into lock from inside to outside successively and transfers corresponding of bumping pearl mounting hole and coupling of nut to bump in the hole of bead, thereby each shell, lock of bumping pearl transfer nut and coupling to be fixed together, and steel ball is to the cylindrical body that exposes outside coupling.

The annular barrier plate of axle sleeve is arranged in the cylindrical shell of coupling, and the front-end face towards the place ahead of the ring barrier plate of the ear end face of annular barrier plate and coupling is oppositely arranged.

The first step of the circumferential inside line of flare nut is enclosed within on the outside second step of central fitting seat of rear-bank rotor housing, the second step drive fit of the circumferential inside line of flare nut is enclosed within on the outside first step of central fitting seat of rear-bank rotor housing, thereby flare nut is fixedly connected on the central fitting seat of rear-bank rotor housing, and the frustoconic shape hole section of flare nut is relative with the week frustoconic shape position laterally of the back segment of the cylindrical shell of coupling.

The 9th technological scheme on the basis of above-mentioned the 8th technological scheme is: described dished spring assembly also comprises 1 to 5 packing ring; Dish spring abutment, butterfly spring and each packing ring are the steel integral piece with corresponding central axial line.

The front end position of dish spring abutment be shaped as the round platform hull shape; The circumferential outside left of dish spring abutment is provided with first limited part, second limited part and isolation part successively according to order from front to back; The central lumen of dish spring abutment is stepped cylindrical, the through hole that the front portion is frustoconic shape in rear portion, and this through hole is formed by the circumferential inside line of dish spring abutment; The circumferential inside line of dish spring abutment also is provided with first step and second step; The front hole section of described first step, second step and frustoconic shape is according to setting gradually from back to preceding order; The internal diameter of first step is greater than the internal diameter of second step; The internal diameter of second step is corresponding with the external diameter of coupling, and the upper edge, rear portion of the inner circumferential wall of second step is axially arranged with the bow-shaped recess of the quantity straight line shape identical with the quantity of bumping the hole of bead of coupling, and the axis of adjacent 2 bow-shaped recess of each bar bow-shaped recess all equates with respect to the angle of the central axial line of dish spring abutment; The tapering of front hole section is identical with the week tapering laterally of the round platform portion of lock accent mandrel, and the axial length of front hole section is equal to lock and transfers the preceding protuberance of mandrel and the axial length sum of round platform portion.

Each packing ring is provided with according to from front to back order coaxial line successively is folded mutually.

The front-end face at the front end position of dish spring abutment contacts with the ear end face of inboard the 3rd step of release of brake piston, and the front portion of first limited part of the circumferential outside left of dish spring abutment contacts with the step surface of the inboard second step of release of brake piston; The front-end face of second limited part of the circumferential outside left of dish spring abutment and the ear end face of release of brake piston also are that the ear end face inner edge position of inboard first step contacts; The ear end face of second limited part of the circumferential outside left of dish spring abutment contacts with the inside line towards the place ahead at the front end position of butterfly spring; Butterfly spring is provided with around the isolation part of dish spring abutment, and the outside left towards the rear at the position, rear end of butterfly spring contacts with the front-end face towards the place ahead of first packing ring.

The front hole section of the circumferential inside line of dish spring abutment is enclosed within lock and transfers on the circumferential outer side surface of round platform portion of mandrel, and both are slidingly matched each other; The second step of dish spring abutment is enclosed within on the cylindrical body of coupling, and both are slidingly matched each other, and sealing is movingly each other by corresponding seal ring between the two; Each bar bow-shaped recess at the rear portion of the second step of dish spring abutment contacts with second group of extending part that bumps the corresponding steel ball of pearl.

Good effect of the present utility model is:

(1) the utility model is offered arcuate indentation by brake lining at the one end, makes the replacing of the frequent attrition component brake lining that need change comparatively convenient, saves engineering time, saves cost.

(2) structure of clamp pedestal of the present utility model and shape make the compact structure of hydraulic clamp braking device of the present utility model, installation and maintenance all comparatively convenient, time saving and energy saving.

(3) in the preferred mode, left brake pad pin and right brake pad pin are all only established a pin-and-hole that is positioned at the rear end, and the brake lining pin of this structure makes convenient to the replacing of brake lining.

(4) master cylinder of the present utility model is used for hydraulic braking gripping mechanism that low-floor light rail vehicle is braked, and this master cylinder has under the condition of the service braking oil circuit of primer fluid pressing system and the normal braking that realizes and the function of alleviation.This normal braking of master cylinder and alleviation mode be safety not only, and reliable.Master cylinder of the present utility model preferably has mechanical mitigation capability; need can not realize the machinery alleviation by corresponding leverage component and grip module etc. by the mechanical relieving apparatus of special outside; when normal alleviation was lost efficacy, only need to carry out machinery by the special spanner device at the scene and alleviate.When carrying out the machinery alleviation, spanner is enclosed within on the position, rear end of hand adjustment axle, rotates counterclockwise the hand adjustment axle, make it drive push rod and rotate with respect to lock aligning axle, and motion backward, thereby realize mechanical the alleviation.In addition, in the adjustment of the initial position that stretches out casing component that carries out push rod, when also promptly finally adjusting for the gap between brake lining and the brake disc, can drive push rod by rotation hand adjustment axle and carry out the rotation of corresponding rotation direction with respect to lock aligning axle, make the front end of push rod on fore-and-aft direction, be in appropriate initial position, this initial position has directly determined the gap between brake lining and the brake disc, thereby has realized the on-the-spot easily purpose of adjusting the gap between brake lining and the brake disc.

(5) casing component of master cylinder of the present utility model is preferably the 3 stops member that adopts square-outside and round-inside, its columniform inner chamber makes that the installation of inner components is comparatively convenient, compact structure, help the realization of various functions, when the circumferential outside of its square column type makes on the clamp pedestal that master cylinder is fixed on the hydraulic braking gripping mechanism, install steadily, fixing reliable.In addition, hydraulic oil first inner chamber of master cylinder is owing to adopt the 3 stops casing component also can form comparatively easily.

(6) master cylinder of the present utility model has two kinds of basic schemes carrying out urgent hydraulic pressure when alleviating.First kind of basic scheme is: auxiliary braking spare is an oil cylinder cover, hydraulic oil first inner chamber forms between casing component, oil cylinder cover and release of brake piston, the another one that hydraulic oil first inner chamber is set on casing component is is simultaneously imported and exported, thereby make master cylinder of the present utility model in case of emergency, in hydraulic oil first inner chamber, injects hydraulic oil and realize alleviation by the corresponding urgent oil circuit of alleviating of hydraulic system.Second kind of basic scheme is preferred version: auxiliary braking spare is oil cylinder cover and auxiliary braking piston, and 2 hydraulic oil inner chambers are set.Hydraulic oil first inner chamber forms between casing component, auxiliary braking piston and release of brake piston, hydraulic oil second inner chamber forms between casing component, auxiliary braking piston and oil cylinder cover, thereby the hydraulic circuit that links to each other with hydraulic oil first inner chamber of hydraulic system is the service braking loop, and the hydraulic circuit that links to each other with hydraulic oil second inner chamber is the urgent oil circuit of alleviating, the former is used to realize normal brake application and alleviation, and the latter is used to realize urgent hydraulic pressure alleviation.This preferred second kind of basic scheme makes when promptly alleviating, and only needs to use the hand pump interface that high-pressure and hydraulic oil is injected hydraulic oil second inner chamber and can realize alleviating.This preferred urgent mitigation capability; the advantage that has not only still kept original urgent alleviation; and for the situation that the normal alleviation that hydraulic oil first inner chamber that results from master cylinder causes to the fault between the control valve of service braking oil circuit was lost efficacy, also can finally make butterfly spring retraction and realize alleviating.

(7) the preferred scheme of the utility model is the also double effect of playing lock accent device of master cylinder.This preferred version is on the basis of basic technical scheme, master cylinder also comprises flare nut, and select lock to transfer assembly to comprise that also first group is bumped pearl, lock and transfer nut, coupling and second group to bump pearl and select the hand adjustment shaft assembly also to comprise guide holder and body, thereby making master cylinder have to carry out stroke automatically adjust function.Master cylinder of the present utility model the preferred brake lining and the braking gap of wheel of adjusting hydraulic clamp automatically, it is good to adjust precision, adjustment efficient height is safe and reliable and compact structure is reasonable, is applicable to the installation requirement of low-floor rail vehicle.

Description of drawings

Fig. 1 is the schematic representation of correlation of the brake disc of hydraulic braking gripping mechanism of the present utility model and locomotive;

Fig. 2 looks schematic representation for the left side of Fig. 1;

Fig. 3 is when observing from the upper left side of Fig. 1, the schematic perspective view of the hydraulic braking gripping mechanism among the figure, the left brake pad pin among the figure and the shape of right brake pad pin are provided by Figure 30, and different with the shape of left brake pad pin among Fig. 1 and right brake pad pin, the clamp left side assembly on the back seat of the lock pin assembly department that only need be arranged on the clamp pedestal of not drawing among the figure and the respective threads pin and corresponding anti-the releasing of the right assembly of clamp; Identical among the structure of all the other component among Fig. 3 and Fig. 1;

Fig. 4 is during from the left back beneath of Fig. 3, the schematic perspective view of hydraulic braking gripping mechanism, and the structure of the corresponding component among the structure of each component among Fig. 4 and Fig. 1 is identical;

Fig. 5 is the schematic perspective view of the clamp pedestal among Fig. 3;

Fig. 6 is the schematic perspective view during from the beneath of Fig. 5;

Fig. 7 is that the B-B of Fig. 1 is to cross-sectional schematic;

Fig. 8 is the enlarged diagram of the master cylinder among Fig. 7;

Fig. 9 is the schematic perspective view of the preceding brake lining of the grip module among Fig. 4;

Figure 10 is the hydraulic braking gripping mechanism schematic representation that dismounting is moved when the brake lining of the front and back of replacing grip module shown in Figure 1;

Figure 11 is the schematic representation of the rear-bank rotor housing of the casing component among Fig. 8;

Figure 12 is the schematic representation of the central housing of the casing component among Fig. 8;

Figure 13 is the schematic representation of the brake cylinder casing of the casing component among Fig. 8;

Figure 14 is the schematic representation of the release of brake piston of the piston component among Fig. 8;

Figure 15 is the schematic representation of the auxiliary braking piston of the piston component among Fig. 8;

Figure 16 is the schematic representation of the oil cylinder cover of the piston component among Fig. 8;

Figure 17 is the schematic representation of the push-rod assembly among Fig. 8, and the shaft block ring in the push-rod assembly does not draw in the drawings;

Figure 18 is that the C-C of Figure 17 is to cross-sectional schematic;

Figure 19 is the schematic representation that the lock among Fig. 8 is transferred assembly;

Figure 20 is the schematic perspective view of the lock aligning axle among Figure 19;

Figure 21 is the schematic perspective view that the lock among Figure 19 is transferred nut;

Figure 22 is the schematic perspective view of the coupling among Figure 19;

Figure 23 is the schematic representation of the dish spring abutment of the dished spring assembly among Fig. 8;

Figure 24 is the schematic representation of the hand adjustment shaft assembly among Fig. 8, and guide holder and axle sleeve in the hand adjustment shaft assembly do not draw;

Figure 25 is the D-D cross-sectional schematic of Figure 24;

Figure 26 is the schematic representation of the guide holder of the hand adjustment shaft assembly among Fig. 8;

Figure 27 is the schematic representation of the axle sleeve of the hand adjustment shaft assembly among Fig. 8;

Figure 28 is the schematic representation of the flare nut among Fig. 8;

Figure 29 is the schematic perspective view of flare nut shown in Figure 28;

Figure 30 is a kind of schematic perspective view of the left brake pad pin of the grip module among Fig. 3; It also is a kind of schematic perspective view of right brake pad pin;

Figure 31 is a kind of schematic perspective view of the clamp left side assembly of the grip module among Fig. 3, also is a kind of schematic perspective view of the right assembly of clamp of grip module, the respective threads of not drawing among figure pin and corresponding anti-releasing;

Figure 32 is the schematic representation of correlation of the brake disc of prior art hydraulic braking gripping mechanism and locomotive.

Reference character in the above-mentioned accompanying drawing is as follows:

Clamp pedestal 1, master cylinder assembly department 11, substrate 11-1, mounting plate 11-2, central hole 11-3 installs screw 11-4.

Lock pin assembly department 12, left lock pin assembly department 12a, right lock pin assembly department 12b; Left side connecting base 12-1, right connecting base 12-2, left front seat 12-3, left front mounting hole 12-3-1, left front through hole 12-3-2, left front blind hole 12-3-3; Right front seat 12-4, right front mounting hole 12-4-1, right front through hole 12-4-2; Back seat 12-5, left back mounting hole 12-5-1, right back mounting hole 12-5-2, left back through hole 12-5-3, right back through hole 12-5-4, left back blind hole 12-5-5.

Lever pin left end assembly department 13, left sideboard 13-1, left fitting seat 13-2, lever pin left end mounting hole 13-3.

Lever pin right-hand member assembly department 14, right sideboard 14-1, right fitting seat 14-2, lever pin right-hand member mounting hole 14-3.

Master cylinder 2, casing component 21, rear-bank rotor housing 21-1, the fitting seat 21-1-1 of central authorities, the 21-1-2 of cover plate portion, the 21-1-3 of connecting cylinder portion, internal thread 21-1-4, inboard first step 21-1-5, inboard second step 21-1-6, inboard the 3rd step 21-1-7, inboard groove 21-1-8, outside first step 21-1-9, outside second step 21-1-10, the outside the 3rd step 21-1-11, position, rear end 21-1-12, intermediate portion 21-1-13, front end position 21-1-14; Central housing 21-2, the 21-2-1 of back-end sealing portion, main part 21-2-2, forward sealing portion 21-2-3, outside groove 21-2-4; Brake cylinder casing 21-3, the 21-3-1 of first step portion, the 21-3-2 of second step portion, the 3rd stepped part 21-3-3, the first inboard groove 21-3-4a, the second inboard groove 21-3-4b, the 3rd inboard groove 21-3-4c; The 21-3-5 of back-end sealing portion, main part 21-3-6, front end joint 21-3-7, outside groove 21-3-8.

Piston component 22, oil cylinder cover 22-1, back step 22-1-1, middle bench 22-1-2, radially outer 22-1-2a, front step 22-1-3, inboard first step 22-1-4, inboard second step 22-1-5, inboard groove 22-1-6, ring mounting groove 22-1-7, inboard groove 22-1-8; Auxiliary braking piston 22-2, tube main body 22-2-1, front-end face 22-2-1a, stop part 22-2-2, ear end face 22-2-2a, inboard groove 22-2-3; Release of brake piston 22-3, outside first step 22-3-1, outside second step 22-3-2, the outside the 3rd step 22-3-3, front-end face 22-3-3a, inboard first step 22-34, inboard second step 22-3-5, inboard the 3rd step 22-3-6, inboard the 4th step 22-3-7, inboard the 5th step 22-3-8, inboard the 6th step 22-3-9, inboard groove 22-3-10; Thrust ball bearing with flat seat 22-4.

Push-rod assembly 23, push rod 23-1, preceding cavity 23-1-1, circlip groove 23-1-2, outside thread 23-1-3, rear chamber 23-1-4, metapore section 23-1-4a, pin groove 23-1-5; Pressure seat 23-2, anterior pedestal 23-2-1, rear portion pedestal 23-2-2; Packing ring 23-3; Pressure disk 23-4, central disk body 23-4-1, side plate 23-4-2; O RunddichtringO 23-5; Shaft block ring 23-6;

Lock transfers assembly to bump pearl 24-1 for 24, the first groups, shell 24-1-1, steel ball 24-1-2; Lock aligning axle 24-2, preceding protuberance 24-2-1, the 24-2-2 of round platform portion, joint 24-2-3, screw section 24-2-4, internal thread 24-2-5 bumps pearl mounting hole 24-2-6; Lock is transferred nut 24-3, central lumen 24-3-1, and internal thread 24-3-2 bumps hole of bead 24-3-3; Coupling 24-4, cylindrical body 24-4-1, ring barrier plate 24-4-2 bumps hole of bead 24-4-3, central lumen 24-4-4; Second group is bumped pearl 24-5, shell 24-5-1, steel ball 24-5-2;

Dished spring assembly 25, dish spring abutment 25-1, the first limited part 25-1-1, the second limited part 25-1-2, isolation part 25-1-3, first step 25-1-4, second step 25-1-5, front hole section 25-1-6, front end position 25-1-7, inboard groove 25-1-8, bow-shaped recess 25-1-9; Butterfly spring 25-2, the packing ring 25-3 first packing ring 25-3-1, the second packing ring 25-3-2, the 3rd packing ring 25-3-3;

Hand adjustment shaft assembly 26, hand adjustment axle 26-1, position, rear end 26-1-1, the 26-1-2 of portion that is tightly connected, stop part 26-1-3, joint 26-1-4, main shaft section 26-1-5; Straight pin 26-2, packing ring 26-3, bolt 26-4, guide holder 26-5, body 26-5-1, ring plate 26-5-2; Axle sleeve 26-6, annular barrier plate 26-6-1, outer cylinder body 26-6-2, annular connecting plate 26-6-3, central sleeve 26-6-4, outside thread 26-6-5, selflubricating packing ring 26-7;

Flare nut 27, circumferential outside left 27-1, outside groove 27-2, first step 27-3, second step 27-4, frustoconic shape hole section 27-5;

Dust-proof cover 28-1, cover main body 28-1-1, installing ring 28-1-2 installs packing ring 28-2, hole back-up ring 28-3;

The hydraulic oil first inner chamber 29-1, the hydraulic oil second inner chamber 29-2;

Leverage component 3, platen 31, lever 32,

Lever pin 4,

Left cover 51, right cover plate 52;

Grip module 6, clamp left side assembly 6a, the right assembly 6b of clamp, left brake pad pin 61a, right brake pad pin 61b, pin-and-hole 61-1, arcuate indentation 61-2, left sleeve base 62a, right sleeve base 62b, leading portion 62-1, back segment 62-2; Left front spring seat 63a, right front spring seat 63b, left return spring 64a, right return spring 64b, left back spring seat 65a, right back spring seat 65b, ring-type inside line 65-1; The left front anti-66a1 that releases, the left back anti-66a2 that releases, the right front anti-66b1 that releases, the right back anti-66b2 that releases, connecting plate 66-1, limiting board 66-2; Left front threaded pin 67a1, left back threaded pin 67a2, right front threaded pin 67b1, right back threaded pin 67b2; Preceding brake lining 68a, back brake lining 68b, brake lining body 68-1 connects breach 68-1-1, connecting through hole 68-1-2, brake shoe 68-2,

Brake disc 7;

Prior art hydraulic braking gripping mechanism 8, the framework 81a of bogie, axletree 82a, brake disc 83a,

Clamp pedestal 81b, hydraulic braking cylinder 82b, lever 83b, fixing brake lining 84b, moving brake lining 85b, piston 86b, cylinder inner spring 87b, lever pin 88b.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.This paper is described with orientation shown in Figure 1, and the direction up and down among Fig. 1 also is the direction up and down in describing, and the direction of court of Fig. 1 institute is the place ahead in the description, and the direction that deviates from Fig. 1 is the rear in the description.

(embodiment 1)

See Fig. 1 to Fig. 4 and Fig. 7, the hydraulic braking gripping mechanism of present embodiment mainly is made up of clamp pedestal 1, master cylinder 2, leverage component 3, lever pin 4, left cover 51, right cover plate 52 and grip module 6.Leverage component 3 mainly is made up of platen 31 and lever 32.

See Fig. 5 and Fig. 6, clamp pedestal 1 is the cast steel integral piece, mainly is made up of master cylinder assembly department 11, lock pin assembly department 12, lever pin left end assembly department 13 and lever pin right-hand member assembly department 14.

Master cylinder assembly department 11 mainly is made up of substrate 11-1 and mounting plate 11-2.Substrate 11-1 is horizontally disposed with.Mounting plate 11-2 vertical is provided with, and its plate body is provided with the sagittal through hole as the central hole 11-3 of master cylinder assembly department 11, also is provided with corresponding sagittal 4 on the plate body of mounting plate 11-2 screw 11-4 is installed.Mounting plate 11-2 is connected from the top on the front portion of upside of substrate 11-1.

Lock pin assembly department 12 mainly is made up of left connecting base 12-1, right connecting base 12-2, left front seat 12-3, right front seat 12-4 and back seat 12-5.

Left front seat 12-3 is provided with left front mounting hole 12-3-1, left front through hole 12-3-2 and left front blind hole 12-3-3.The axis of left front mounting hole 12-3-1 along front and back to being provided with and connecting left front seat 12-3.The axis of left front through hole 12-3-2 and left front blind hole 12-3-3 identical and along about to setting.The axis of left front through hole 12-3-2 is also along the radially setting of left front mounting hole 12-3-1, and leads to the left hand external of left front seat 12-3.Left front blind hole 12-3-3 is positioned on the madial wall of left front seat 12-3, and is provided with internal thread.

Right front seat 12-4 is provided with right front mounting hole 12-4-1, right front through hole 12-4-2 and right front blind hole.The axis of right front mounting hole 12-4-1 along front and back to being provided with and connecting right front seat 12-4.The axis of right front through hole 12-4-2 and right front blind hole identical and along about to setting.The axis of right front through hole 12-4-2 is also along the radially setting of right front mounting hole 12-4-1, and leads to the right hand external of right front seat 12-4.Right front blind hole is positioned on the madial wall of right front seat 12-4, and is provided with internal thread.

Back seat 12-5 is provided with left back mounting hole 12-5-1 and right back mounting hole 12-5-2 about going up and dividing, and left back mounting hole 12-5-1 is positioned on the left end position of back seat 12-5, and left front mounting hole 12-3-1 coaxial line with left front seat 12-3, right back mounting hole 12-5-2 is positioned on the right-hand member position of back seat 12-5, and with the right front mounting hole 12-4-1 coaxial line of right front seat 12-4.Back seat 12-5 its position that left back mounting hole 12-5-1 is set be provided with lead to left hand external about to left back through hole 12-5-3 and with the left back blind hole 12-5-5 that is provided with internal thread on the madial wall of being positioned at of this left back through hole 12-5-3 coaxial line, and the axis of left back through hole 12-5-3 is also along the radially setting of left back mounting hole 12-5-1.Back seat 12-5 also its position that right back mounting hole 12-5-2 is set be provided with lead to right hand external about to right back through hole 12-5-4 and with the right back blind hole that is provided with internal thread on the madial wall of being positioned at of this right back through hole 12-5-4 coaxial line, and the axis of right back through hole 12-5-4 is also along the radially setting of right back mounting hole 12-5-2.

The left connecting base 12-1 of lock pin assembly department 12 is connected from left on the left side of substrate 11-1 of master cylinder assembly department 11, and right connecting base 12-2 is from the right side of the right-hand substrate 11-1 that is connected master cylinder assembly department 11.Left front seat 12-3 is connected from the below on the front portion of downside of left connecting base 12-1, and right front seat 12-4 is connected from the below on the front portion of downside of right connecting base 12-2.Back seat 12-5 is connected from the below on the rear portion of downside of substrate 11-1, and its left end position is connected from the below on the rear portion of downside of left connecting base 12-1, and its right-hand member position is connected from the below on the rear portion of downside of right connecting base 12-2.Thereby the left end position of left front seat 12-3 and back seat 12-5 constitutes the left lock pin assembly department 12a of lock pin assembly department 12 jointly, and the right-hand member position of right front seat 12-4 and back seat 12-5 constitutes the right lock pin assembly department 12b of lock pin assembly department 12 jointly.

Lever pin left end assembly department 13 mainly is made up of left sideboard 13-1 and left fitting seat 13-2.Left sideboard 13-1 is connected from left by its rear end, right side on the left side of mounting plate 11-2 of master cylinder assembly department 11, and is linked to each other with the right side of the left connecting base 12-1 of lock pin assembly department 12 is anterior by its rear end, left side.Left side fitting seat 13-2 be provided with as about lever pin left end mounting hole 13-3 to through hole.Left side fitting seat 13-2 is connected from the below by the upside of the front portion at its left end position on the downside of front portion of left sideboard 13-1, and by the left side at the rear portion at its left end position from the right side at the right-hand rear portion that is connected left sideboard 13-1.

Lever pin right-hand member assembly department 14 mainly is made up of right sideboard 14-1 and right fitting seat 14-2.Right sideboard 14-1, and is linked to each other with the left side of the right connecting base 12-2 of lock pin assembly department 12 is anterior by its rear end, right side from the right side of the right-hand mounting plate 11-2 that is connected master cylinder assembly department 11 by its rear end, left side.Right fitting seat 14-2 be provided with as about lever pin right-hand member mounting hole 14-3 to through hole, and this lever pin right-hand member mounting hole 14-3 and lever pin left end mounting hole 13-3 coaxial line.Right fitting seat 14-2 is connected from the below by the upside of the front portion at its right-hand member position on the downside of front portion of right sideboard 14-1, and is connected from left by the right side at the rear portion at its right-hand member position on the left side at rear portion of right sideboard 14-1.

Said structure makes left lock pin assembly department 12a be positioned at the left bottom of master cylinder assembly department 11, right lock pin assembly department 12b is positioned at the lower right of master cylinder assembly department 11, lever pin left end assembly department 13 is positioned at the preceding left of master cylinder assembly department 11, and lever pin right-hand member assembly department 14 is positioned at the preceding right-hand of master cylinder assembly department 11.

Left cover 51 is fixed on the left side of left fitting seat 13-2 from left, and covers lever pin left end mounting hole 13-3 from left.Right cover plate 52 is from the right-hand right side that is fixed on right fitting seat 14-2, and from the right-hand lever pin right-hand member mounting hole 14-3 that covers.

See Fig. 8, master cylinder 2 mainly transfers assembly 24, dished spring assembly 25, hand adjustment shaft assembly 26, flare nut 28, dust-proof cover 28-1 and corresponding Sealing to form by casing component 21, piston assembly 22, thrust ball bearing with flat seat 22-4, push-rod assembly 23, lock.

Casing component 21 is according to mainly being linked to each other successively with brake cylinder casing 21-3 by rear-bank rotor housing 21-1, central housing 21-2 from back to preceding order and constituting, and rear-bank rotor housing 21-1, central housing 21-2 and brake cylinder casing 21-3 are the part of cast steel integral piece through obtaining after processing that is provided with the central lumen before and after connecting, and three's central axial line is a same axis, and this axis also is the central axial line of casing component 21.

See Figure 11, rear-bank rotor housing 21-1 according to radially from inside to outside order constitute by linking to each other successively with the 21-1-3 of connecting cylinder portion around central fitting seat 21-1-1, the 21-1-2 of cover plate portion of central axial line setting.The overall stepped cylindrical shape of the fitting seat 21-1-1 of central authorities, its central lumen also is the central lumen of rear-bank rotor housing 21-1.The circumferential inside line of the formation central lumen of the fitting seat 21-1-1 of central authorities is provided with inboard first step 21-1-5, inboard second step 21-1-6 and inboard the 3rd step 21-1-7 successively according to the past order backward, and the internal diameter of each step reduces by rank successively.The inwall of inboard first step 21-1-5 is provided with internal thread 21-1-4.The inwall of inboard the 3rd step 21-1-7 is provided with 2 inboard groove 21-1-8 that are used to install the ring of seal ring.The circumferential outside left of the fitting seat 21-1-1 of central authorities is provided with outside first step 21-1-9, outside second step 21-1-10 and the outside the 3rd step 21-1-11 successively according to the past order backward.The 21-1-2 of cover plate portion is the ring plate, and around the rear outside setting of central fitting seat 21-1-1, and the ear end face of end face and central fitting seat 21-1-1 is positioned on the same vertical guide thereafter.The circumferential outer shape of the 21-1-3 of connecting cylinder portion also is the circumferential outer shape of rear-bank rotor housing 21-1, this circumferential outer shape is same as the circumferential outer shape of square column of band fillet, and the 21-1-3 of connecting cylinder portion links to each other successively with front end position 21-1-14 according to position, the rear end 21-1-12, the intermediate portion 21-1-13 that are increased by rank by internal diameter to preceding order from the back and constitutes.The 21-1-3 of connecting cylinder portion is provided with around the 21-1-2 of cover plate portion by position, its rear end 21-1-12, and the ear end face of the ear end face of this position, rear end 21-1-12 and the 21-1-2 of cover plate portion is positioned on the same vertical guide.

See Figure 12, central housing 21-2 totally is the tubular of square-outside and round-inside, and the central lumen of central housing 21-2 is the cylindrical step hole.Central housing 21-2 is according to constituting from the back to preceding order by all linking to each other successively with forward sealing portion 21-2-3 around the 21-2-1 of back-end sealing portion, the main part 21-2-2 of central axial line setting.The 21-2-1 of back-end sealing portion is cylindrical substantially, its external diameter is corresponding with the internal diameter of the front end position 21-1-14 of the 21-1-3 of connecting cylinder portion of rear-bank rotor housing 21-1, and the peripheral outer wall of the 21-2-1 of back-end sealing portion is provided with the outside groove 21-24 of the ring that is used to install seal ring.The circumferential outer shape of the main part 21-2-2 of central housing 21-2 is same as the circumferential outer shape of the square column of band fillet, and the peripheral shape of its cross section is same as the peripheral shape (described cross section is meant the cross section perpendicular to central axial line, down together) of the cross section of rear-bank rotor housing 21-1.The internal diameter of main part 21-2-2 is identical with the internal diameter of the intermediate portion 21-1-13 of the 21-1-3 of connecting cylinder portion of rear-bank rotor housing 21-1.The circumferential outer shape of the forward sealing portion 21-2-3 of central housing 21-2 is same as the circumferential outer shape of the square column of band fillet, and is same as the circumferential outer shape of the main part 21-2-2 of central housing 21-2.The internal diameter of forward sealing portion 21-2-3 is greater than the internal diameter of main part 21-2-2.

See Fig. 8, Figure 12 and Figure 11, central housing 21-2 is stretched into backward by its rear end sealed department 21-2-1 among the front end position 21-1-14 of the 21-1-3 of connecting cylinder portion of rear-bank rotor housing 21-1 in the past, and the internal diameter Spielpassung of the front end position 21-1-14 of the external diameter of the 21-2-1 of back-end sealing portion of central housing 21-2 and the 21-1-3 of connecting cylinder portion of rear-bank rotor housing 21-1, and the seal ring among the outside groove 21-2-4 of the 21-2-1 of back-end sealing portion by being arranged on central housing 21-2 is tightly connected between the two.

See Figure 13, brake cylinder casing 21-3 totally is the tubular of square-outside and round-inside, and the central lumen of brake cylinder casing 21-3 is the cylindrical step hole, and also be provided with 2 through holes (figure does not draw) that are used for the hydraulic oil turnover on the barrel of brake cylinder casing 21-3, they are that first of hydraulic oil is imported and exported and second import and export.First of this hydraulic oil is imported and exported and second import and export also are first import and export and second import and export of the hydraulic oil of casing component.

The circumferential outside left of brake cylinder casing 21-3 constitutes according to being linked to each other successively with front end joint 21-3-7 by the 21-3-5 of back-end sealing portion, main part 21-3-6 from back to preceding order.The shape of the 21-3-5 of back-end sealing portion of the circumferential outside left of brake cylinder casing 21-3 is same as cylindrical circumferential outer shape substantially, and its external diameter is corresponding with the internal diameter of the forward sealing portion 21-2-3 of central housing 21-2, and the peripheral outer wall of the 21-3-5 of back-end sealing portion is provided with the outside groove 21-3-8 of the ring that is used to install seal ring.The shape of the main part 21-3-6 of the circumferential outside left of brake cylinder casing 21-3 is same as the circumferential outer shape of square column of band fillet, and the peripheral shape of its cross section is same as the circumferential outer shape of cross section of the main part 21-2-2 of central housing 21-2.Brake cylinder casing 21-3 the shape of front end joint 21-3-7 of circumferential outside left be same as cylindrical circumferential outer shape, and its external diameter is less than the external diameter of the 21-3-5 of back-end sealing portion.

Still see Figure 13, the central lumen of brake cylinder casing 21-3 is the cylindrical step hole, and this cylindrical step hole is formed by the circumferential inside line of brake cylinder casing 21-3.The circumferential inside line of brake cylinder casing 21-3 is provided with the 21-3-1 of first step portion, the 21-3-2 of second step portion and the 3rd stepped part 21-3-3 successively according to order from front to back, and the internal diameter of the 21-3-1 of first step portion, the 21-3-2 of second step portion and the 3rd stepped part 21-3-3 reduces successively step by step.The axial length of the 21-3-1 of first step portion is less than the axial length of front end joint 21-3-7, and the inner circumferential wall of the 21-3-1 of first step portion is provided with internal thread.Be equipped with the inboard groove of 4 rings that are used to install seal ring on the inner circumferential wall of 21-3-2 of second step portion and the 3rd stepped part 21-3-3; Wherein, according to order from front to back, be provided with the first inboard groove 21-3-4a and the second inboard groove 21-3-4b on the 21-3-2 of second step portion successively, the 3rd stepped part 21-3-3 is provided with 2 the 3rd inboard groove 21-3-4c.

See Fig. 8, Figure 13 and Figure 12, brake cylinder casing 21-3 is stretched among the forward sealing portion 21-2-3 of central housing 21-2 by the 21-3-5 of back-end sealing portion of its circumferential outside left in the past backward, and the internal diameter Spielpassung of the external diameter of the 21-3-5 of back-end sealing portion of brake cylinder casing 21-3 and the forward sealing portion 21-2-3 of central housing 21-2, and the seal ring among the outside groove 21-3-8 of the 21-3-5 of back-end sealing portion by being arranged on brake cylinder casing 21-3 is tightly connected between the two.

See Fig. 1 to Fig. 3 and Fig. 5, master cylinder 2 is seated in by its casing component 21 on the substrate 11-1 of master cylinder assembly department 11 of

clamp pedestal

1,4 to wear bolt by the back to preceding rear-bank rotor housing 21-1, the central housing 21-2 and brake cylinder casing 21-3 that passes casing component 21 successively, install on the screw 11-4 for corresponding 1 of the mounting plate 11-2 that screws at the master cylinder assembly department 11 of clamp pedestal 1, and make casing component 21 be fixed on the master cylinder assembly department 11 of clamp pedestal 1.

Casing component 21 is except that playing a protective role, being installed in master cylinder on the clamp pedestal 1 and being provided with in casing component 21 other component, and casing component 21 is arranged to split type kit form and is had following technique effect:

The one, casing component 21 adopts split type kit form, not only help convenient other related components that master cylinder 2 is installed, and the time also can dismantle easily and change relevant component in maintenance, but also help rear-bank rotor housing 21-1, central housing 21-2 and the further processing of brake cylinder casing 21-3 after casting casing component 21; It is then more convenient etc. to be provided for 2 through holes of hydraulic oil turnover such as processing on brake cylinder casing 21-3.

The 2nd, the rear-bank rotor housing 21-1 of casing component 21, central housing 21-2 and brake cylinder casing 21-3 all upwards are arranged to the shape of square-outside and round-inside on the whole in its week, its outside square helps stable being seated on the clamp pedestal 1, the circle of its inside helps the seesawing of respective pistons of piston component 22, and helps compression and open motion before and after the butterfly spring 25-2.

The 3rd, the brake cylinder casing 21-3 of casing component 21 also plays the effect that constitutes hydraulic oil first inner chamber 29-1 and the hydraulic oil second inner chamber 29-2 with corresponding piston jointly, thereby participates in first kind of mode of operation and the second kind of mode of operation that realizes master cylinder 2 directly.

See Fig. 8, piston component 22 is mainly set gradually by oil cylinder cover 22-1, auxiliary braking piston 22-2 and release of brake piston 22-3 according to from front to back order and forms.Oil cylinder cover 22-1, auxiliary braking piston 22-2 and release of brake piston 22-3 are the part of cast steel integral piece through obtaining after processing, and all overall stepped cylinder barrel shaped of three, also be that the three is equipped with the central lumen before and after connecting, and three's central axial line is a same axis, this axis also is the central axial line of piston component 22, and the central axial line of piston component 22 is identical with the central axial line of casing component 21.

See Figure 14, the circumferential outside left of release of brake piston 22-3 is provided with outside first step 22-3-1, outside second step 22-3-2 and the outside the 3rd step 22-3-3 successively according to order from front to back, and the external diameter of outside first step 22-3-1, outside second step 22-3-2 and the outside the 3rd step 22-3-3 increases by rank successively.

Still see Figure 14, the central lumen of release of brake piston 22-3 is the cylindrical step hole, and this cylindrical step hole is formed by the circumferential inside line of release of brake piston 22-3.The circumferential inside line of release of brake piston 22-3 is according to being provided with inboard first step 22-3-4 successively from back to preceding order, inboard second step 22-3-5, inboard the 3rd step 22-3-6, inboard the 4th step 22-3-7, inboard the 5th step 22-3-8 and inboard the 6th step 22-3-9, and inboard first step 22-3-4, inboard second step 22-3-5, inboard the 3rd step 22-3-6, the internal diameter of inboard the 4th step 22-3-7 and inboard the 5th step 22-3-8 reduces by rank, the internal diameter of inboard the 6th step 22-3-9 is identical with the internal diameter of inboard the 4th step 22-3-7, and the inner circumferential wall of inboard the 5th step 22-3-8 is provided with the inboard groove 22-3-10 of the ring that is used to install seal ring.

See Fig. 8, Figure 14 and Figure 13, release of brake piston 22-3 is arranged among the brake cylinder casing 21-3 of casing component 21, and the internal diameter Spielpassung of the 3rd stepped part 21-3-3 of the external diameter of the outside the 3rd step 22-3-3 of release of brake piston 22-3 and the circumferential inside line of brake cylinder casing 21-3 and being slidingly connected each other, and the corresponding seal ring sealing among 2 the 3rd inboard groove 21-3-4c on the inner circumferential wall of the 3rd stepped part 21-3-3 by being arranged on brake cylinder casing 21-3 is dynamically connected between the two.

See Figure 15, auxiliary braking piston 22-2 is linked to each other with stop part 22-2-2 by tube main body 22-2-1 according to from front to back order and constitutes.Tube main body 22-2-1 is cylindrical tube shape, stop part 22-2-2 is cylindrical tube shape substantially, and stop part 22-2-2 is connected on the rear side outside of a main body 22-2-1 from the rear, thereby the central lumen of auxiliary braking piston 22-2 is the cylindrical step hole, and the inner circumferential wall of tube main body 22-2-1 is provided with the inboard groove 22-2-3 of the ring that is used to install seal ring.

See Fig. 8, Figure 15 and Figure 13, auxiliary braking piston 22-2 is arranged among the brake cylinder casing 21-3 of casing component 21, and the internal diameter Spielpassung of the 21-3-2 of second step portion of the external diameter of auxiliary braking piston 22-2 and the circumferential inside line of brake cylinder casing 21-3 and being slidingly connected each other, and the seal ring sealing among the second inboard groove 21-3-4b on the inner circumferential wall of the 21-3-2 of second step portion by being arranged on brake cylinder casing 21-3 is dynamically connected between the two.And auxiliary braking piston 22-2 also is positioned at the place ahead of the outside the 3rd step 22-3-3 of release of brake piston 22-3.Under the state of not annotating hydraulic oil, auxiliary braking piston 22-2 is provided with around the outside second step 22-3-2 of release of brake piston 22-3 by its stop part 22-2-2, and be provided with around the outside first step 22-3-1 of release of brake piston 22-3 by its main body 22-2-1, and auxiliary braking piston 22-2 is oppositely arranged by the front-end face 22-3-3a of the outside the 3rd step 22-3-3 of the ear end face 22-2-2a of its stop part 22-2-2 and release of brake piston 22-3.

See Fig. 8, the space that the outside the 3rd step 22-3-3 of the outside second step 22-3-2 of the ear end face of the tube main body 22-2-1 of auxiliary braking piston 22-2, the stop part 22-2-2 of auxiliary braking piston 22-2, release of brake piston 22-3, release of brake piston 22-3 and the brake cylinder casing 21-3 of casing component 21 are surrounded forms the hydraulic oil first inner chamber 29-1 that is used to feed hydraulic oil of master cylinder, and this hydraulic oil first inner chamber 29-1 is connected with hydraulic oil first import and export of brake cylinder casing 21-3.

See Figure 16, the circumferential outside left of oil cylinder cover 22-1 constitutes according to being linked to each other successively with front step 22-1-3 by back step 22-1-1, middle bench 22-1-2 from back to preceding order, and the external diameter of back step 22-1-1, middle bench 22-1-2 and front step 22-1-3 increases by rank successively, and the radially outer 22-1-2a of middle bench 22-1-2 is for being the position of circular protrusion backward.The peripheral outer wall of the front step 22-1-3 of oil cylinder cover 22-1 is provided with outside thread.The cylindrical substantially step hole of the central lumen of oil cylinder cover 22-1, this cylindrical step hole is formed by the circumferential inside line of oil cylinder cover 22-1.The circumferential inside line of oil cylinder cover 22-1 is provided with inboard first step 22-1-4 and inboard second step 22-1-5 successively according to order from front to back, and the internal diameter of inboard first step 22-1-4 is greater than the internal diameter of inboard second step 22-1-5, and the inner circumferential wall of inboard second step 22-1-5 is provided with the inboard groove 22-1-6 of 2 rings that are used to install seal ring, the leading flank of inboard second step 22-1-5 is provided with the ring mounting groove 22-1-7 of opening towards the place ahead, and the inner circumferential wall of inboard first step 22-1-4 is provided with the inboard groove 22-1-8 of the ring that is used for mounting hole usefulness back-up ring.

See Fig. 8, Figure 16, Figure 15 and Figure 13, oil cylinder cover 22-1 is arranged in the central lumen of brake cylinder casing 21-3 of casing component 21, and the front step 22-1-3 of oil cylinder cover 22-1 is matched by the internal thread of the outside thread on its peripheral outer wall with the 21-3-1 of first step portion of the circumferential inside line of brake cylinder casing 21-3, thereby makes oil cylinder cover 22-1 screw thread be fixedly connected on the brake cylinder casing 21-3.The external diameter of the middle bench 22-1-2 of oil cylinder cover 22-1 intermittently cooperates with the internal diameter of the 21-3-2 of second step portion of the circumferential inside line of brake cylinder casing 21-3 and is slidingly connected each other, and the seal ring sealing among the first inboard groove 21-3-4a on the inner circumferential wall of the 21-3-2 of second step portion by being arranged on brake cylinder casing 21-3 is dynamically connected between the two.And the middle bench 22-1-2 of oil cylinder cover 22-1 also is oppositely arranged by the front-end face 22-2-1a of the tube main body 22-2-1 of the ear end face of its radially outer 22-1-2a and auxiliary braking piston 22-2.The internal diameter Spielpassung of the tube main body 22-2-1 of the external diameter of the back step 22-1-1 of oil cylinder cover 22-1 and auxiliary braking piston 22-2 and being slidingly connected each other, and the seal ring sealing among the inboard groove 22-2-3 on the inwall of the tube main body 22-2-1 by being arranged on auxiliary braking piston 22-2 is dynamically connected between the two.The internal diameter of the back step 22-1-1 of oil cylinder cover 22-1 cooperates with the crest clearance of the outside first step 22-3-1 of release of brake piston 22-3 and is slidingly connected each other, and the seal ring sealing among 2 the inboard groove 22-1-6 of the inboard second step 22-1-5 by being arranged on oil cylinder cover 22-1 is dynamically connected between the two.

See Fig. 8, master cylinder also is provided with the hydraulic oil second inner chamber 29-2 that is used to feed hydraulic oil, this hydraulic oil second inner chamber 29-2 is by the back step 22-1-1 of the circumferential outside left of oil cylinder cover 22-1, the middle bench 22-1-2 of the circumferential outside left of oil cylinder cover 22-1, the space that the front-end face 22-2-1a of the tube main body 22-2-1 of auxiliary braking piston 22-2 and the brake cylinder casing 21-3 of casing component 21 are surrounded forms, also be that the hydraulic oil second inner chamber 29-2 is by brake cylinder casing 21-3, the space that auxiliary braking piston 22-2 and oil cylinder cover 22-1 are surrounded forms, and this hydraulic oil second inner chamber 29-2 is connected with hydraulic oil second import and export of brake cylinder casing 21-3.Piston component 22 adopts split type kit form, making master cylinder 2 have conventional braking and the function of alleviation also can be carried out outside first kind of mode of operation, also make master cylinder 2 have the function of the urgent alleviation when release of brake piston 22-3 cisco unity malfunction, also can carry out second kind of mode of operation.Now first division is as follows:

When the alleviation process of first kind of mode of operation carrying out master cylinder 2, hydraulic oil enter make among the hydraulic oil first inner chamber 29-1 piston component 22 release of brake piston 22-3 by dish spring abutment 25-1 overcome butterfly spring 25-2 elastic force and backward the motion, when providing power to the alleviation of braking, also increased the elastic force potential energy of butterfly spring 25-2 for final realization; Meanwhile, the elastic force of the return spring of grip module 6 then affacts on the push rod 23-1 by corresponding component successively, makes push rod 23-1 drive lock aligning axle 24-2 and together motion backward of release of brake piston 22-3; The stretching, extension of return spring then makes corresponding 2 brake linings decontrol the clamping of brake disc 7 and be eased.When the braking process of first kind of mode of operation carrying out master cylinder 2, opening corresponding Decompression valves makes hydraulic oil flow go out the hydraulic oil first inner chamber 29-1, under the elastic force effect of butterfly spring 25-2, when travelling forward discharge hydraulic oil by dish spring abutment 25-1 drive release of brake piston 22-3, also driving lock aligning axle 24-2 and push rod 23-1 successively travels forward, when discharging corresponding elastic potential energy, the elastic force that also finally overcomes return spring makes 2 brake linings of grip module 6 upwards clamp brake disc 7 in front and back and the realization braking.

In the time of can not carrying out first kind of mode of operation in master cylinder 2 appearance accidents, for example the pipeline leakage of oil of hydraulic system or defective valve etc. make hydraulic system to control moving forward and backward of release of brake piston 22-3.At this moment, then can adopt hand pump that high-pressure and hydraulic oil is imported and exported by second of casing component 21 and inject the hydraulic oil second inner chamber 29-2, thereby make master cylinder 2 enter second kind of mode of operation, and alleviate process accordingly, hydraulic oil enter make among the hydraulic oil second inner chamber 29-2 auxiliary braking piston 22-2 successively by release of brake piston 22-3 and dish spring abutment 25-1 overcome butterfly spring 25-2 elastic force and backward the motion, when providing power to the alleviation of braking, also increased the elastic force potential energy of butterfly spring 25-2 for final realization.Certainly, where necessary, in second kind of mode of operation, also can discharge the hydraulic oil among the hydraulic oil second inner chamber 29-2, and carry out corresponding braking process.

See Fig. 8 and Figure 14, the central axial line of thrust ball bearing with flat seat 22-4 is identical with the central axial line of piston component 22.Thrust ball bearing with flat seat 22-4 comprises seat ring that is positioned at the front side and the blowout patche that is positioned at rear side.Thrust ball bearing with flat seat 22-4 is fixed on inboard the 3rd step 22-3-6 of release of brake piston 22-3 by its seat ring.See Fig. 8 and Figure 17, push-rod assembly 23 is according to mainly being set gradually by push rod 23-1, pressure seat 23-2 packing ring 23-3 and pressure disk 23-4 from back to preceding order and constituting.Push rod 23-1, pressure seat 23-2 and pressure disk 23-4 are the part of cast steel integral piece through making after processing, and three's central axial line is a same axis, this axis also is the central axial line of push-rod assembly 23, and the central axial line of push-rod assembly 23 is identical with the central axial line of piston component 22.Packing ring 23-3 is the selflubricating packing ring.Push-rod assembly 23 also comprises O RunddichtringO 23-5 and shaft block ring 23-6.

See Figure 17, the opening of pressure disk 23-4 backward, pressure disk 23-4 is made of the central disk body 23-4-1 of circle and the side plate 23-4-2 that is connected the cylinder shelly of the circumferential outer ledge of central disk body 23-4-1 from the rear.The inner circumferential wall of the side plate 23-4-2 of pressure disk 23-4 is provided with the inboard groove of ring.

Pressure seat 23-2 is mainly linked to each other successively with rear portion pedestal 23-2-2 front and back by anterior pedestal 23-2-1 and constitutes.Anterior pedestal 23-2-1 and rear portion pedestal 23-2-2 are cylindrical, and the external diameter of anterior pedestal 23-2-1 is greater than the external diameter of rear portion pedestal 23-2-2, and the side plate 234-2 internal diameter Spielpassung of the external diameter of anterior pedestal 23-2-1 and pressure disk 23-4.The circumferential outer side surface of anterior pedestal 23-2-1 is provided with the outside groove of ring, anterior pedestal 23-2-1 stretches into the space that the side plate 23-4-2 of pressure disk 23-4 centered on from the rear, and the trailing flank of packing ring 23-3 contacts with the leading flank of the anterior pedestal 23-2-1 of pressure seat 23-2, and the leading flank of packing ring 23-3 contacts with the trailing flank of the central disk body 23-4-1 of pressure disk 234.O RunddichtringO 23-5 is arranged between the inboard groove of side plate 23-4-2 of the outside groove of anterior pedestal 23-2-1 of pressure seat 23-2 and pressure disk 23-4.

See Figure 17 and Figure 18, push rod 23-1 is overall cylindrical steel integral piece, and the front end of push rod 23-1 also is provided with opening preceding cavity 23-1-1 forward, the week of the front end of push rod 23-1 is provided with circlip groove 23-1-2 laterally, the week of the back segment of push rod 23-1 is provided with the self-locking thread as outside thread 23-1-3 laterally, and the back segment of push rod 23-1 is provided with opening rear chamber 23-1-4 backward.The preceding cavity 23-1-1 of push rod 23-1 is identical with the axis of rear chamber 23-1-4, and this axis also is the central axial line of push rod 23-1.The external diameter interference fit of the rear portion pedestal 23-2-2 of the internal diameter of the preceding cavity 23-1-1 of push rod 23-1 and pressure seat 23-2, push rod 23-1 tightly is enclosed within on the rear portion pedestal 23-2-2 of pressure seat 23-2 by its preceding cavity 23-1-1.The rear chamber 23-1-4 of push rod 23-1 totally is the big preceding little stepped shaft cylindrical hole in back, and the inwall of the metapore section 23-1-4a of rear chamber 23-1-4 is provided with the semi-cylindrical pin groove 23-1-5 that 2 central axial lines with push rod 23-1 parallel and opening is relative, and described semi-cylindrical pin groove 23-1-5 rearward connects push rod 23-1.

See Fig. 8, Figure 17 and Figure 14, the leading portion of the body of rod of push rod 23-1 is arranged in the central lumen of release of brake piston 22-3, and the internal diameter Spielpassung of inboard the 5th step 22-3-8 of the external diameter of the leading portion of the body of rod of push rod 23-1 and release of brake piston 22-3, and be dynamically connected by seal ring among the inboard groove 22-3-10 that is arranged on release of brake piston 22-3 and the seal ring sealing that is arranged on the 4th step 22-3-7 place, inboard of release of brake piston 22-3 between the two.Shaft block ring 23-6 is arranged on the circlip groove 23-1-2 place of push rod 23-1, its front-end face contacts with the end face towards the rear at the circlip groove 23-1-2 place of push rod 23-1, and end face contacts with the end face towards the place ahead of inboard the 5th step 22-3-8 of release of brake piston 22-3 thereafter.

The core part of push-rod assembly 23 is push rod 23-1.Push rod 23-1 in use functions as follows:

The one, push rod 23-1 is fixedlyed connected with pressure seat 23-2 by its preceding cavity 23-1-1, and in the braking process of first kind of mode of operation carrying out master cylinder 2, push rod 23-1 gives packing ring 23-3 and pressure disk 23-4 with force transmission forward successively by pressure seat 23-2, be passed to the platen 31 of leverage component 3 again by pressure disk 23-4, the preceding brake lining 68a that makes platen 31 drive levers 32 promote grip module 6 around lever pin 4 rotations moves backward, the motion backward of preceding brake lining 68a then contacts with brake disc 7 from the place ahead, brake disc 7 then contacts with back brake lining 68b when being pushed to the rear, thereby brake lining has been realized braking to the clamping of brake disc 7 before and after having realized; In the alleviation process of first kind and second kind mode of operation carrying out master cylinder 2, push rod 23-1 then accepts the active force backward from pressure seat 23-2, when transmitting active force backward, move backward, and described backward active force derives from the elastic force of the return spring of grip module 6.

The 2nd, push rod 23-1 is in motion backward, by the self-locking outside thread 23-1-3 drive of its back segment and the together motion backward of lock aligning axle 24-2 of its screw-thread fit.

The 3rd, push rod 23-1 by the metapore section 23-1-4a of its rear chamber 23-1-4 and be arranged on pin groove 23-1-5 on the inwall of metapore section 23-1-4a of rear chamber 23-14 and the hand adjustment axle 26-1 of hand adjustment shaft assembly 26 and straight pin 26-2 before and after be slidingly matched, and it is upwards spacing mutually in week, thereby in the adjustment process of the third mode of operation of master cylinder 2, under the rotation of hand adjustment axle 26-1,26-1 together rotates in company with the hand adjustment axle, and then rotate and move forwards or backwards accordingly, thereby can be in suitable position with respect to lock aligning axle 24-2; In addition, can be when push rod 23-1 can not normally withdraw in the casing component 21 of master cylinder 2, rotate the mode of hand adjustment axle 26-1 by armstrong's patent, push rod 23-1 is moved backward and reach effect the alleviation of braking.

The 4th, after the circlip groove 23-1-2 that is arranged in front end of push rod 23-1 is provided with shaft block ring 23-6, in the braking process of first kind of mode of operation of master cylinder, when push rod 23-1 is promoted it and travelled forward by lock aligning axle 24-2, also provide the thrust of balanced action by shaft block ring 23-6 by release of brake piston 22-3; And in the alleviation process of first kind of mode of operation of master cylinder, release of brake piston 22-3 moves under the effect of hydraulic oil and when driving dish spring abutment 25-1 and retreating simultaneously backward, push rod 23-1 is being with lock aligning axle 24-2 together backward in the motion accepting the active force that derives from return spring that pressure seat 23-2 transmits, also together move backward immediately following release of brake piston 22-3 with back-up ring 23-6, thereby help increasing the stationarity that push rod 23-1 moves backward by its front end head pushing shaft.Thereby push rod 23-1 is provided with circlip groove 23-1-2 and push-rod assembly 23 is provided with the preferred disposition that shaft block ring 23-6 is a push-rod assembly 23 of the present utility model.

See Fig. 8 and Figure 19, lock is transferred assembly 24 mainly to bump pearl 24-1, lock aligning axle 24-2, lock by first group and is transferred nut 24-3, coupling 24-4 and second group to bump pearl 24-5 to form.Lock aligning axle 24-2, lock transfer nut 24-3 and coupling 24-4 to be the part of cast steel integral piece through obtaining after processing, and the three is equipped with the central lumen before and after connecting, three's central axial line is a same axis, this axis also is the central axial line that lock is transferred assembly 24, and lock transfers the central axial line of assembly 24 identical with the central axial line of push-rod assembly 23.

See Figure 20, Figure 19 and Fig. 8, the inwall of the central lumen of lock aligning axle 24-2 is provided with the self-locking thread as internal thread 24-2-5, and the difference of the shape of the circumferential outside left of lock aligning axle 24-2 basis is connected to form by preceding protuberance, the 24-2-2 of round platform portion, joint 24-2-3 and screw section 24-2-4 successively according to order from front to back.The internal thread 24-2-5 of lock aligning axle 24-2 matches with the outside thread 23-1-3 of the back segment of push rod 23-1.The circumferential outer shape of preceding protuberance 24-2-1 is same as the circumferential outer shape of cylinder.The circumferential outer shape of the 24-2-2 of round platform portion is same as the circumferential outer shape of round platform, and the external diameter of the front end of the 24-2-2 of round platform portion is greater than the external diameter of rear end, and the external diameter of the front end of the 24-2-2 of round platform portion is greater than the external diameter of preceding protuberance 24-2-1.The circumferential outer shape of joint 24-2-3 is same as the circumferential outer shape of cylinder, the external diameter of joint 24-2-3 is less than the external diameter of the rear end of the 24-2-2 of round platform portion, the circumferential outer shape of screw section 24-24 is the cylinder outside thread, and this outside thread is non-self-locking thread.The external diameter of the external diameter of the rear end of the 24-2-2 of round platform portion, the external diameter of screw section 24-2-4 and joint 24-2-3 reduces successively.Lock aligning axle 24-2 is provided with opening on its preceding protuberance 24-2-1 to bump pearl mounting hole 24-2-6(present embodiment towards 3 to 6 of the place ahead be 6), and the axis that respectively bumps pearl mounting hole 24-2-6 is positioned on the same imaginary columniform circumferential lateral surface, and each adjacent 2 axis of bumping pearl mounting hole 24-2-6 all equates with respect to the angle of the central axis of lock aligning axle 24-2.Lock aligning axle 24-2 is arranged on internal thread 24-2-5 on the inwall of central lumen by it and screws on the outside thread 23-1-3 of the back segment of push rod 23-1.

See Figure 19, first group is bumped the quantity of pearl 24-1 and the quantity of bumping pearl mounting hole 24-2-6 identical (present embodiment has 6) of lock accent mandrel 24-2, each bumps pearl 24-1 and forms by shell 24-1-1, pressure spring and steel ball 24-1-2, pressure spring is arranged among the shell 24-1-1, and its rear end is weldingly fixed on the rear end of shell 24-1-1, steel ball 24-1-2 is welded on the front end of pressure spring, and exposes the front end of shell 24-1-1 forward.The external diameter of first group of shell 24-1-1 that bumps pearl 24-1 and lock aligning axle 24-2 bump pearl mounting hole 24-2-6 transition fit, each shell 24-1-1 that bumps pearl 24-1 stretches into corresponding of lock aligning axle 24-2 and bumps among the pearl mounting hole 24-2-6, and steel ball 24-1-2 exposes the front-end face of the preceding protuberance 24-2-1 of lock aligning axle 24-2 forward, and contacts with the blowout patche that is positioned at rear side of thrust ball bearing with flat seat 22-4.

See Figure 21 and Figure 19, lock transfers nut 24-3 totally cylindrical, lock transfers the leading portion position of the central lumen 24-3-1 of nut 24-3 to be provided with the non-self-locking thread as internal thread 24-3-2 that is positioned on its inwall, and it is 6 according to the interval angle that equates along the radial hole of bead 24-3-3(present embodiment that bumps that 3 to 6 circles are set that lock is transferred the back segment of nut 24-3).Lock transfers nut 24-3 to be enclosed within on the lock aligning axle 24-2, and by its internal thread 24-3-2 by after on the outside thread of the screw section 24-2-4 that screws forward at lock aligning axle 24-2.

See Figure 22 and Figure 19, coupling 24-4 is the cylindrical shell 24-4-1 that the rear end is connected with ring barrier plate 24-4-2, and the middle part of described cylindrical shell 24-4-1 partially the position, back according to the interval angle that equates along radial be provided with quantity and lock transfer nut 24-3 to bump the identical hole of bead 24-4-3(present embodiment that bumps of hole of bead 24-3-3 be 6), and respectively bump the size of hole of bead 24-4-3 and shape and lock accent nut 24-3 to bump hole of bead 24-3-3 corresponding.The circumferential outside left of the back segment of the cylindrical shell 24-4-1 of coupling 24-4 be shaped as frustoconic shape, stage casing and the leading portion of the cylindrical shell 24-4-1 of coupling 24-4 are shaped as cylindrical shape.The central lumen 24-4-4 of coupling 24-4 is the cylindrical step hole.Coupling 24-4 by after be enclosed within lock forward and transfer on the nut 24-3.

See Figure 19, second group of quantity of bumping pearl 24-5 and lock transfer that nut 24-3's bump hole of bead 24-3-3 identical (present embodiment has 6), each bumps pearl 24-5 and forms by shell 24-5-1, pressure spring and steel ball 24-5-2, pressure spring is arranged among the shell 24-5-1, and it transfers the inner radially of nut 24-3 to be weldingly fixed on the inner of shell 24-5-1 along lock, steel ball 24-5-2 is welded on the outer end of pressure spring, and to the outer end that exposes outside shell 24-5-1.Bump hole of bead 24-4-3 and the lock of the external diameter of second group of shell 24-5-1 that bumps pearl 24-5 and coupling 24-4 transfer that nut 24-3's bump pearl mounting hole 24-3-3 transition fit, each shell 24-5-1 that bumps pearl 24-5 stretches into lock from inside to outside successively and transfers corresponding corresponding of bumping pearl mounting hole 24-3-3 and coupling 24-4 of nut 24-3 to bump among the 24-4-3 of the hole of bead, thereby each shell 24-5-1, lock of bumping pearl 24-5 transfer nut 24-3 and coupling 24-4 to be fixed together, and steel ball 24-5-2 is to the cylindrical body 24-4-1 that exposes outside coupling 24-4.

In the alleviation process under first kind of mode of operation of master cylinder 2, because the hydraulic oil of certain pressure is injected among the hydraulic oil first inner chamber 29-1, make release of brake piston 22-3 move backward, thereby drive dish spring abutment 25-1 overcomes the elastic force of butterfly spring 25-2 and together motion backward, meanwhile, the active force that derives from return spring applies backward active force for push rod 23-1 always, in case dish spring abutment 25-1 moves backward, then push rod 23-1 promotes lock accent mandrel 24-2 and follows together motion backward of dish spring abutment 25-1, and the 24-2-2 of round platform portion of lock aligning axle 24-2 contacts with the front hole section 25-1-6 of dish spring abutment 25-1 always, and then lock transfers mandrel 24-2 drive lock to transfer nut 24-3 to bump pearl 24-5 and together motion backward of coupling 24-4 together with second group; In case when coupling 24-4 moved to backward and contacts with the conical surface of flare nut 27, then lock transferred nut 24-3 not transfer together motion backward of mandrel 24-2 in company with lock again.When lock transfers nut 24-3 just to begin to move backward, the 24-2-2 of round platform portion of mandrel 24-2 transferred by lock because contact with dish spring abutment 25-1 can't be with respect to dish spring abutment 25-1 motion, can transfer nut 24-3 to rotate and the trend of motion backward with respect to lock but formed.Because push rod 23-1 and lock are transferred the matching relationship of mandrel 24-2 self-locking thread each other, can not move backward this moment.Meanwhile, under the active force of hydraulic oil, unaffected the proceeding of motion backward of release of brake piston 22-3, thereby continue to drive together motion backward of dish spring abutment 25-1, lock transfers mandrel 24-2 then under situation about temporarily can not move backward, break away from and the contacting of dish spring abutment 25-1, release of brake piston 22-3 also drives thrust ball bearing with flat seat 22-4 simultaneously and moves backward and make to win and organize the steel ball 24-1-2 that bumps pearl 24-1 and overcome the elastic force of the pressure spring that bumps pearl 24-1 and be retracted into backward among the shell 24-1-1 that bumps pearl 24-1.Lock transfer mandrel 24-2 break away from the contacting of dish spring abutment 25-1 after, under the drive of thrust ball bearing with flat seat 22-4 transferring nut 24-3 to rotate with respect to lock when and transfer nut 24-3 to move backward, till dish spring abutment 25-1 moves to position, its rear end and the front-end face of the packing ring 25-3-2 of dished spring assembly 25 contacts with respect to lock.Transfer mandrel 24-2 to transfer nut 24-3 to rotate and backward in the motion at lock with respect to lock, also rotate and motion backward with respect to push rod 23-1, and transfer the difference of pitch of the internal and external threads of mandrel 24-2 also being with together motion backward of push rod 23-1 because of lock, thereby lock transfer mandrel 24-2 also with respect to push rod 23-1 displacement one segment distance backward.If lock is transferred mandrel 24-2 return spring when beginning transfers nut 24-3 to rotate with respect to lock to stretch and put in place, moving after then lock transfers nut 24-3 with respect to push rod 23-1 is exactly the compensation of stroke.

In the braking process under first kind of mode of operation of master cylinder 2, because the pressure release of hydraulic system, the elastic force of butterfly spring 25-2 obtains discharging, and promotes lock respectively by dish spring abutment 25-1 and transfers mandrel 24-2 and release of brake piston 22-3 to travel forward.Lock is transferred mandrel 24-2 then to drive push rod 23-1 and lock accent nut 24-3 respectively and is travelled forward.Lock transfers travelling forward of nut 24-3 then being with second group to bump pearl 24-5 and coupling 24-4 together travels forward, when the ring barrier plate 24-4-2 that moves to coupling 24-4 and the axle sleeve 26-6 that is enclosed within hand adjustment shaft assembly 26 go up and the ear end face of selflubricating packing ring 26-7 of rear side that is positioned at the annular barrier plate 26-6-1 of axle sleeve 26-6 when contacting, coupling 24-4 can not move forward, and also makes lock transfer nut 24-3 not travel forward.Because this moment is under the promotion of butterfly spring 25-2, dish spring abutment 25-1 continues to drive lock and transfers mandrel 24-2 to travel forward, under the effect that moves forward of lock accent mandrel 24-2, make lock transfer nut 24-3 to rotate about it, brake lining 68a and back brake lining 68b clamp till the brake disc 7 before push rod 23-1 moves forward to, and the Spring balanced of butterfly spring 25-2 is in elastic force and the preceding brake lining 68a and the clamping force sum of back brake lining 68b to brake disc 7 of return spring.So in the alleviation process and braking process under first kind of mode of operation of master cylinder 2, lock transfers assembly 24 to play the self-adjusting key effect of the brake clearance of master cylinder 2.

In the alleviation process under second kind of mode of operation of master cylinder 2, the hydraulic oil second inner chamber 29-2 by master cylinder 2 injects hydraulic oil, move backward and promote release of brake piston 22-3 by auxiliary braking piston 22-2, promote dish spring abutment 25-1 by release of brake piston 22-3 again and move backward, thereby final the realization alleviated accordingly.

See Fig. 8, spring assembly 25 mainly is made up of dish spring abutment 25-1, butterfly spring 25-2 and 3 packing ring 25-3.Dish spring abutment 25-1, butterfly spring 25-2 and 3 packing ring 25-3 are the steel integral piece with corresponding central axial line.

See Figure 23, dish spring abutment 25-1 is the cast steel integral piece that is provided with central lumen.The front end position 25-1-7 of dish spring abutment 25-1 is shaped as the round platform hull shape.The circumferential outside left of dish spring abutment 25-1 is provided with the first limited part 25-1-1, the second limited part 25-1-2 and isolation part 25-1-3 successively according to order from front to back.The shape of the first limited part 25-1-1 of dish spring abutment 25-1 is same as the circumferential outer shape of round platform, and the second limited part 25-1-2 of dish spring abutment 25-1 totally is Circular Plate shape, and the shape of the isolation part 25-1-3 of dish spring abutment 25-1 is same as the periphery sidepiece shape of cylinder.The central lumen of dish spring abutment 25-1 is stepped cylindrical, the through hole shape that the front portion is frustoconic shape in rear portion, and this through hole is formed by the circumferential inside line of dish spring abutment 25-1.The circumferential inside line of dish spring abutment 25-1 is according to the front hole section 25-1-6 that is provided with first step 25-1-4, second step 25-1-5 and frustoconic shape from back to preceding order successively.The internal diameter of described first step 25-1-4 is greater than the internal diameter of second step 25-1-5; The internal diameter of second step 25-1-5 is corresponding with the external diameter of coupling 24-4, and the sagittal middle part of the inner circumferential wall of second step 25-1-5 is provided with the inboard groove 25-1-8 of ring, and the upper edge, rear portion of the inner circumferential wall of second step 25-1-5 is axially arranged with the bow-shaped recess 25-1-9 of 6 straight line shapies, and the axis of adjacent 2 bow-shaped recess 25-1-9 of these 6 bow-shaped recess 25-1-9 all equates with respect to the angle of the central axial line of dish spring abutment 25-1.The tapering of front hole section 25-1-6 is identical with the week tapering laterally of the 24-2-2 of round platform portion of lock aligning axle 24-2, and the axial length of front hole section 25-1-6 is equal to the axial length sum of preceding protuberance 24-2-1 and the 24-2-1 of round platform portion of lock aligning axle 24-2.

See Fig. 8 and Figure 23,3 packing ring 25-3 are followed successively by the first packing ring 25-3-1, the second packing ring 25-3-2 and the 3rd packing ring 25-3-3 according to order from front to back, and the first packing ring 25-3-1, the second packing ring 25-3-2 are provided with the 3rd packing ring 25-3-3 coaxial line is folded mutually, and the ear end face of the 3rd packing ring 25-3-3 contacts with the front-end face towards the place ahead of position, the rear end 21-1-12 of rear-bank rotor housing 21.

The front-end face of the front end position 25-1-7 of dish spring abutment 25-1 contacts with the ear end face of inboard the 3rd step 22-3-6 of release of brake piston 22-3, and the front portion of the first limited part 25-1-1 of the circumferential outside left of dish spring abutment 25-1 contacts with the step surface of the inboard second step 22-3-5 of release of brake piston 22-3.The front-end face of the second limited part 25-1-2 of the circumferential outside left of dish spring abutment 25-1 and the ear end face of release of brake piston 22-3 also are that the ear end face inner edge position of inboard first step 22-3-4 contacts; The ear end face of the second limited part 25-1-2 of the circumferential outside left of dish spring abutment 25-1 contacts with the inside line towards the place ahead at the front end position of butterfly spring 25-2.Butterfly spring 25-2 is provided with around the isolation part 25-1-3 of dish spring abutment 25-1, and the outside left towards the rear at the position, rear end of butterfly spring 25-2 contacts with the front-end face towards the place ahead of the first packing ring 25-3-1.

The front hole section 25-1-6 of the circumferential inside line of dish spring abutment 25-1 is enclosed within on the circumferential outer side surface of the 24-2-2 of round platform portion of lock aligning axle 24-2, and both are slidingly matched each other.The second step 25-1-5 of dish spring abutment 25-1 is enclosed within on the cylindrical body 24-4-1 of coupling 24-4, and both are slidingly matched each other, and the mutual sealed sliding of seal ring among the inboard groove 25-1-8 of the second step 25-1-5 by being arranged on dish spring abutment 25-1 is movingly between the two.Each bar bow-shaped recess 25-1-9 at the rear portion of the second step 25-1-5 of dish spring abutment 25-1 contacts with second group of extending part that bumps the corresponding steel ball 24-5-2 of pearl 24-5.

See that Fig. 8, Figure 24 to Figure 27 hand adjustment shaft assembly 26 mainly is made up of hand adjustment axle 26-1,2 straight pin 26-2, packing ring 26-3, bolt 26-4, guide holder 26-5, axle sleeve 26-6 and selflubricating packing ring 26-7.

See Figure 24, hand adjustment axle 26-1 is cylindrical substantially step-like steel integral piece, constitutes according to being linked to each other successively with main shaft section 26-1-5 by position, rear end 26-1-1, the 26-1-2 of portion that is tightly connected, stop part 26-1-3, joint 26-1-4 successively from back to preceding order.Position, rear end 26-1-1 is a hexagonal prism shape, the be tightly connected 26-1-2 of portion, stop part 26-1-3, joint 26-1-4 and main shaft section 26-1-5 is all cylindrical substantially, and the external diameter of described each cylindrical portion according to descending order be followed successively by stop part 26-1-3, the 26-1-2 of portion that is tightly connected, joint 26-1-4 and main shaft section 26-1-5.The leading portion of main shaft section 26-1-5 be arranged with opening towards week laterally and 2 pin grooves that connect the place ahead, the cross section of pin groove is arc.The leading portion of main shaft section 26-1-5 also is provided with opening and connect the center screw in the place ahead forward along central axial line.

See Figure 25, Figure 24, Figure 11 and Fig. 8,2 straight pin 26-2 are in the corresponding pin groove of the main shaft section 26-1-5 that in the past inserts hand adjustment axle 26-1 about cylindrical branch backward.After bolt 26-4 passes packing ring 26-3 in the past backward, be tightened on the hand adjustment axle 26-1 in the center screw of screw-in hand adjustment axle 26-1 and with packing ring 26-3, and make packing ring 26-4 block 2 straight pin 26-2 from the place ahead, also make hand adjustment axle 26-1,2 straight pin 26-2, packing ring 26-3 and bolt 26-4 connect into an integrated member.Hand adjustment axle 26-1 is stretched into backward by its 26-1-2 of portion that is tightly connected among inboard the 3rd step 21-1-7 of central fitting seat 21-1-1 of rear-bank rotor housing 21-1 in the past, and be connected with rear-bank rotor housing 21-1 sealed rotational by 2 seal rings that are arranged among the corresponding inboard groove 21-1-8, the stop part 26-1-3 of hand adjustment axle 26-1 then is arranged in the inboard second step 21-1-6 of the central fitting seat 21-1-1 of rear-bank rotor housing 21-1, and end face contacts with the end face towards the place ahead of described inboard the 3rd step 21-1-7 thereafter.

Hand adjustment axle 26-1 by its main shaft section 26-1-5 by after stretch into forward among the rear chamber 23-1-4 of push rod 23-1, and each straight pin 26-2 stretches among the corresponding pin groove 23-1-5 of push rod 23-1, and be slidingly matched before and after the rear chamber 23-1-4 of hand adjustment axle 26-1 and push rod 23-1, be slidingly matched before and after the corresponding pin groove 23-1-5 of straight pin 26-2 and push rod 23-1, and straight pin 26-2 makes progress spacing mutually with push rod 23-1 in week.

See Figure 26, Figure 24 and Fig. 8, guide holder 26-5 is the steel integral piece, is made up of to the ring plate 26-5-2 that the vertical of body 26-5-1 that is provided with and the coaxial line that is positioned at rear side is provided with along front and back the axis that is positioned at the front side.Guide holder 26-5 is enclosed within on hand adjustment axle joint 26-1-4 26-1 and its Spielpassung by its body 26-5-1, and the ear end face of the ring plate 26-5-2 of guide holder 26-5 contacts with the front-end face towards the place ahead of the stop part 26-1-3 of hand adjustment axle 26-1.

See Figure 27, axle sleeve 26-6 is the steel integral piece, is made up of annular barrier plate 26-6-1, outer cylinder body 26-6-2, annular connecting plate 26-6-3 and central sleeve 26-6-4.Outer cylinder body 26-6-2 is cylindrical substantially, and its back segment is provided with outside thread 26-6-5.All the axis with outer cylinder body 26-6-2 is identical for the axis of annular barrier plate 26-6-1 annular connecting plate 26-6-3 and central sleeve 26-6-4, and this axis also is the central axis of axle sleeve 26-6.Central sleeve 26-6-4 and annular connecting plate 26-6-3 all are arranged in outer cylinder body 26-6-2, and the setting of annular connecting plate 26-6-3 vertical, are connected between central sleeve 26-6-4 and the outer cylinder body 26-6-2.

Selflubricating packing ring 26-7 is enclosed within on the outer cylinder body 26-6-2 of axle sleeve 26-6, and its front-end face contacts with axle sleeve 26-6 annular barrier plate 26-6-1.

See Figure 27, Figure 11 and Fig. 8, before coupling 24-4 is enclosed within on the lock accent nut 24-3, earlier pass the central lumen of coupling 24-4 after by forward direction and from the central hole of the ring barrier plate 24-4-2 of coupling 24-4, stretch out coupling 24-4 backward by the outer cylinder body 26-6-2 of axle sleeve 26-6, and on the internal thread 21-1-4 of the inboard first step 21-1-5 of the central fitting seat 21-1-1 that screws at the rear-bank rotor housing 21-1 that matches with it by the outside thread 26-6-5 of outer cylinder body 26-6-2, thereby make axle sleeve 26-6 be fixed on the central fitting seat 21-1-1 of rear-bank rotor housing 21-1.The central sleeve 26-6-4 of axle sleeve 26-6 is enclosed within on the body 26-5-1 of guide holder 26-5, and the annular connecting plate 26-6-3 ear end face of axle sleeve 26-6 contacts with the front-end face of the ring plate 26-5-2 of guide holder 26-5, thereby makes that hand adjustment axle 26-1 is limited in the axial direction and can not move vertically.The annular barrier plate 26-6-1 of axle sleeve 26-6 then is arranged in the cylindrical shell 24-4-1 of coupling 24-4, and the front-end face towards the place ahead of the ring barrier plate 24-4-2 of the ear end face of annular barrier plate 26-6-1 and coupling 24-4 is oppositely arranged.

See Figure 28 and Figure 29, flare nut 27 is for being the steel integral piece of tubular, and the shape of its circumferential outside left 27-1 is basic identical with the circumferential outer shape of cylinder, and is provided with the outside groove 27-2 of the ring that is used to install seal ring.The week of flare nut 27 rear portion to the inside be shaped as step-like cylindrical, anterior be shaped as the back little before big frustoconic shape, thereby the circumferential inside line of flare nut 27 according to from after forward order be provided with first step 27-3, second step 27-4 and frustoconic shape hole section 27-5 successively.

See Figure 28, Figure 11 and Fig. 8, flare nut 27 is enclosed within by the first step 27-3 of its circumferential inside line on the outside second step 21-1-10 that matches with it of central fitting seat 21-1-1 of rear-bank rotor housing 21-1, flare nut 27 is enclosed within by its second step 27-4 on the outside first step 21-1-9 friction tight with it of central fitting seat 21-1-1 of rear-bank rotor housing 21-1, thereby flare nut 27 is fixedly connected on the central fitting seat 21-1-1 of rear-bank rotor housing 21-1, and its frustoconic shape hole section 27-5 is relative with the week frustoconic shape position laterally of the back segment of the cylindrical shell 24-4-1 of coupling 24-4.Flare nut 27 also is slidingly matched by the circumferential inside line first step 25-1-4 of its circumferential outside left 27-1 and dish spring abutment 25-1, and makes flare nut 27 and dish spring abutment 25-1 sealing be dynamically connected by the seal ring among the outside groove 27-2 that is arranged on flare nut 27.

See Fig. 8, dust-proof cover 28-1 is the rubber integral piece, and dust-proof cover 28-1 is made up of cover main body 28-1-1 and the installing ring 28-1-2 that is positioned at cover main body 28-1-1 rear side.Dust-proof cover 28-1 is arranged on by its installing ring 28-1-2 among the ring mounting groove 22-1-7 of inboard second step 22-1-5 of oil cylinder cover 22-1, packing ring 28-2 is installed to be contacted with the front-end face of the installing ring 28-1-2 of dust-proof cover 28-1 by end face thereafter, the hole embeds among the inboard groove 22-1-8 of oil cylinder cover 22-1 with back-up ring 28-3, and contact with the front-end face that packing ring 28-2 is installed by end face thereafter, thereby packing ring 28-2 will be installed and dust-proof cover 28-1 is fixed on the oil cylinder cover 22-1.

See Fig. 4 and Fig. 9, grip module 6 is made up of clamp left side assembly 6a, the right assembly 6b of clamp, preceding brake lining 68a and back brake lining 68b.The preceding brake lining 68a of grip module 6 and back brake lining 68b are tabular steel component, also promptly before brake lining 68a and back brake lining 68b constitute to the tabular brake lining body 68-1 of vertical setting and the brake shoe 68-2 that is weldingly fixed on the tabular wear-resistant material on the brake lining body 68-1 about by the edge.The left end position of brake lining body 68-1 be provided with axis along front and back to being provided with and being arc connection breach 68-1-1 substantially, the right-hand member position of brake lining body 68-1 be provided with axis along front and back the connecting through hole 68-1-2 to the circle that is provided with.The rear side of the brake lining body 68-1 of brake lining 68a before the brake shoe 68-2 of preceding brake lining 68a is positioned at.The brake shoe 68-2 of back brake lining 68b is positioned at the front side of the brake lining body 68-1 of back brake lining 68b.

The clamp left side assembly 6a of grip module 6 comprises left brake pad pin 61a, left sleeve base 62a, left front spring seat 63a, left return spring 64a, left back spring seat 65a, anti-releasing and threaded pin.Lockingly be buckled with 2, the difference that 2 anti-releases according to residing front and back position is divided into left front anti-66a1 and the left back anti-66a2 that releases of releasing.Threaded pin has 2, and 2 threaded pins are divided into left front threaded pin 67a1 and left back threaded pin 67a2 according to the difference of residing front and back position.

The right assembly 6b of the clamp of grip module 6 comprises right brake pad pin 61b, right sleeve base 62b, right front spring seat 63b, right return spring 64b, right back spring seat 65b, anti-releasing and threaded pin.Lockingly be buckled with 2, the difference that 2 anti-releases according to residing front and back position is divided into right front anti-66b1 and the right back anti-66b2 that releases of releasing.Threaded pin has 2, and 2 threaded pins are divided into right front threaded pin 67b1 and right back threaded pin 67b2 according to the difference of residing front and back position.

Referring to Figure 30, left brake pad pin 61a and right brake pad pin 61b are steel integral piece cylindraceous.Left brake pad pin 61a and right brake pad pin 61b rear and front end separately are equipped with a pin-and-hole 61-1(Figure 30 who runs through shank along diameter back pin-and-hole that only draws), and be equipped with the arcuate indentation 61-2 of a pair of symmetry on the follower head.

Referring to Figure 31, left front spring seat 63a, right front spring seat 63b, left back spring seat 65a and right back spring seat 65b are the tabular steel integral piece of annulus, and the Circular Plate of left front spring seat 63a and right front spring seat 63b is the planar Circular Plate, and the Circular Plate of left back spring seat 65a and right back spring seat 65b then is the Circular Plate that its ring-type inside line 65-1 protrudes forward.

See Figure 31, Fig. 3 and Fig. 4, left return spring 64a and right return spring 64b are cylindrical helical compression spring.Left front spring seat 63a is weldingly fixed on by the ear end face of its Circular Plate front end with left return spring 64a, left back spring seat 65a is weldingly fixed on by the front-end face of its ring-type outside left rear end with left return spring 64a, thereby the three constitutes left return spring assembly.Right front spring seat 63b is weldingly fixed on by the ear end face of its Circular Plate front end with right return spring 64b, rear spring seat 64-2b is weldingly fixed on by the front-end face of its ring-type outside left rear end with right return spring 64b, thereby the three constitutes right return spring assembly.

See Figure 31, left side sleeve base 62a and right sleeve base 62b are steel integral member cylindraceous, the shape of their circumferential outside left is stepped, the external diameter of week leading portion 62-1 laterally that also is left sleeve base 62a and right sleeve base 62b is all greater than the external diameter of separately back segment 62-2, and the mutual Spielpassung of internal diameter of the external diameter of the back segment 62-2 of left sleeve base 62a and left front spring seat 63a, the mutual Spielpassung of internal diameter of the external diameter of the back segment 62-2 of right sleeve base 62b and right front spring seat 63b.

See Fig. 4, left brake pad pin 61a and right brake pad pin 61b all along front and back to being horizontally disposed with.Preceding brake lining 68a is positioned at the place ahead of back brake lining 68b.Before brake lining 68a and back brake lining 68b by separately be connected breach 68-1-1 from right to left semi-surrounding be arranged on the left brake pad pin 61a, preceding brake lining 68a and afterwards brake lining 68b be enclosed within on the right brake pad pin 61b by separately connecting through hole 68-1-2.

Still see Fig. 4, the left front anti-66a1 that releases, the left back anti-66a2 that releases, right front anti-66b1 and the right back anti-66b2 that releases of releasing are tabular steel integral piece, their shape is all identical with size, all mainly being linked to each other with limiting board 66-2 by connecting plate 66-1 constitutes, and limiting board 66-2 is the bending state with connecting plate 66-1 and links to each other.Each anti-connecting plate 66-1 that releases is provided with the attachment hole that is used to pass threaded pin.

Still see Fig. 4, left sleeve base 62a is set on the left brake pad pin 61a.Left side return spring assembly is set on the back segment of left sleeve base 62a by its left front spring seat 63a, and is slidingly matched before and after both, and the ear end face of the leading portion of left sleeve base 62a contacts with the front-end face of left front spring seat 63a; Left side return spring assembly is set on the left brake pad pin 61a by its left back spring seat 65a, and left sleeve base 62a and left return spring assembly at preceding brake lining 68a with afterwards between the brake lining 68b.

Still see Fig. 4, right sleeve base 62b is set on the right brake pad pin 61b.Right return spring assembly is set on the back segment of right sleeve base 62b by its right front spring seat 63b, and is slidingly matched before and after both, and the ear end face of the leading portion of right sleeve base 62b contacts with the front-end face of right front spring seat 63b; Right return spring assembly is set on the right brake pad pin 61b by its right back spring seat 65b, and right sleeve base 62b and right return spring assembly at preceding brake lining 68a with afterwards between the brake lining 68b.

See Fig. 4 and Fig. 5, the front end of left brake pad pin 61a is arranged among the left front mounting hole 12-3-1 of left front seat 12-3 of lock pin assembly department 12 of clamp pedestal 1, the rear end of left brake pad pin 61a is arranged among the left back mounting hole 12-5-1 of back seat 12-5 of lock pin assembly department 12 of clamp pedestal 1, thereby make the front end of left brake pad pin 61a be arranged on the front portion of left lock pin assembly department 12a of clamp pedestal 1, and make the rear end of left brake pad pin 61a be arranged on the rear portion of left lock pin assembly department 12a of clamp pedestal 1.

See Fig. 4 to Fig. 6, pass the left front anti-66a1 that releases from left to right successively by left front threaded pin 67a1, the left front through hole 12-3-2 of left front seat 12-3, behind the pin-and-hole of the front end of left brake pad pin 61a, screw among the left front blind hole 12-3-3 of left front seat 12-3, thereby front end and the left front anti-66a1 that releases of left brake pad pin 61a are fixed on left front the 12-3 of clamp pedestal 1, and the ear end face of the limiting board 66-2 of the left front anti-66a1 that releases contacts with the front-end face of the left front seat 12-3 of clamp pedestal 1, make the left front anti-66a1 that releases to rotate, thereby prevent front end loosening of left brake pad pin 61a.Pass the left back anti-66a2 that releases from left to right successively by left back threaded pin 67a2, the left back through hole 12-5-3 of back seat 12-5, behind the pin-and-hole 61-1 of the rear end of left brake pad pin 61a, screw among the left back blind hole 12-5-5 of back seat 12-5, thereby the rear end of left brake pad pin 61a and the left back anti-66a2 that releases are fixed on the left part of back seat 12-5 of clamp pedestal 1, and the front-end face of the limiting board 66-2 of the left back anti-66a2 that releases contacts with the ear end face at the left end position of the back seat 12-5 of clamp pedestal 1, make the left back anti-66a2 that releases to rotate, thereby prevent rear end loosening of left brake pad pin 61a.

See Fig. 4 and Fig. 5, the front end of right brake pad pin 61b is arranged among the right front mounting hole 12-4-1 of right front seat 12-4 of lock pin assembly department 12 of clamp pedestal 1, the rear end of right brake pad pin 61b is arranged among the right back mounting hole 12-5-2 of back seat 12-5 of lock pin assembly department 12 of clamp pedestal 1, thereby make the front end of right brake pad pin 61b be arranged on the front portion of right lock pin assembly department 12b of clamp pedestal 1, and make the rear end of right brake pad pin 61b be arranged on the rear portion of right lock pin assembly department 12b of clamp pedestal 1.

See Fig. 4 to Fig. 6, pass the right front anti-66b1 that releases from right to left successively by right front threaded pin 67b1, the right front through hole 12-4-2 of right front seat 12-4, behind the pin-and-hole of the front end of right brake pad pin 61b, screw in the right front blind hole of right front seat 12-4, thereby front end and the right front anti-66b1 that releases of right brake pad pin 61b are fixed on right front the 12-4 of clamp pedestal 1, and the ear end face of the limiting board 66-2 of the right front anti-66b1 that releases contacts with the front-end face of the right front seat 12-4 of clamp pedestal 1, make the right front anti-66b1 that releases to rotate, thereby prevent front end loosening of right brake pad pin 61b.Pass the right back anti-66b2 that releases from right to left successively by right back threaded pin 67b2, the right back through hole 12-5-4 of back seat 12-5, behind the pin-and-hole 61-1 of the rear end of right brake pad pin 61b, screw in the right back blind hole of back seat 12-5, thereby the rear end of right brake pad pin 61b and the right back anti-66b2 that releases are fixed on the right part of back seat 12-5 of clamp pedestal 1, and the front-end face of the limiting board 66-2 of the right back anti-66b2 that releases contacts with the ear end face at the right-hand member position of the back seat 12-5 of clamp pedestal 1, make the right back anti-66b2 that releases to rotate, thereby prevent rear end loosening of right brake pad pin 61b.

See Figure 10, when current brake lining 68a and back brake lining 68b to a certain degree need to change because of may wear to, unclamp and take off right front threaded pin 67b1 and right back threaded pin 67b2, take off right front anti-66b1 and the right back anti-66b2 that releases of releasing simultaneously, take out right brake pad pin 61b from the right front seat 12-4 and the back seat 12-5 of clamp pedestal 1, turn right down then and pull out preceding brake lining 68a and the back brake lining 68b that is positioned at the both sides, front and back; In the mode of semi-surrounding block the front end position of left brake pad pin 61a on by the arcuate indentation 61-2 of its left end new preceding brake lining 68a, and between the front-end face of the ear end face of the left front seat 12-3 of clamp pedestal 1 and left sleeve base 62a, again new back brake lining 68b is blocked on the position, rear end of left brake pad pin 61a in the mode of semi-surrounding by the arcuate indentation 61-2 of its left end, and between the ear end face of the front-end face of the back seat 12-5 of clamp pedestal 1 and left back spring seat 65a; Then right brake pad pin 61b is passed from front to back successively the right front mounting hole 12-4-1 of the right front seat 12-4 of clamp pedestal 1, the right front spring seat 63b of right sleeve base 62b(is enclosed within on the right sleeve base 62b), right return spring 64b, behind the right back mounting hole 12-5-2 of the back seat 12-5 of right back spring seat 65b and clamp pedestal 1, by right front threaded pin 67b1 and the right front anti-66b1 that releases the front end of right brake pad pin 61b is fixed on the right front seat 12-4 of clamp pedestal 1, and by right back threaded pin 67b2 and the right back anti-66b2 that releases the rear end of right brake pad pin 61b is fixed on the right part of back seat 12-5 of clamp pedestal 1, thereby finished the replacing of preceding brake lining 68a and back brake lining 68b.

When the hydraulic braking gripping mechanism of present embodiment uses, be fixed on the bogie of locomotive by corresponding fixed connecting piece by its clamp pedestal 1, and make the top of circular brake disc 7 of rail vehicle between the preceding brake lining 68a of the hydraulic clamp device of present embodiment and back brake lining 68b.

The working principle of the hydraulic clamp device of present embodiment is: when not injecting hydraulic oil in the aforesaid master cylinder 2, under the elastic force effect of the butterfly spring 25-2 of master cylinder 2, the elastic force of butterfly spring 25-2 is passed to the push rod 23-1 of push-rod assembly 23 successively by dish spring abutment 25-1 and lock aligning axle 24-2, and make the pressure disk 23-4 of push-rod assembly 23 eject forward, promote the platen 31 of leverage component 3 again by pressure disk 23-4, and rotate around lever pin 4 at the position, upper end that is driven lever 32 by platen 31, and brake lining 68a before the extruding after making the lower end part of lever 32 by forward direction, and then brake lining 68a moves backward and contacts with the front-end face of brake disc 7 before making, lever 32 is rotated further and then makes brake disc 7 continue backward motion under the drive of preceding brake lining 68a and contact with back brake lining 68b, and make brake disc 7 be clamped between preceding brake lining 68a and the back brake lining 68b, thereby reach the train braking function.When the hydraulic oil first inner chamber 29-1 to master cylinder 2 feeds the hydraulic oil of certain pressure, release of brake piston 22-3 moves backward, driving dish spring abutment 25-1, lock aligning axle 24-2 and push rod 23-1 successively moves backward, meanwhile, under the effect of left return spring 64a and right return spring 64b elastic force, preceding brake lining 68a is pushed open forward, thereby has unclamped preceding brake lining 68a and the clamping of back brake lining 68b to brake disc 7, no longer produce braking force, promptly train is alleviated.

The hydraulic clamp device of present embodiment has following three kinds of mode of operations:

First kind of mode of operation: normal hydraulic braking and alleviation under automatically controlled:

Be formed for feeding the hydraulic oil first inner chamber 29-1 of hydraulic oil between casing component 21, auxiliary braking piston 22-2 and the release of brake piston 22-3, and casing component 21 is provided with first import and export of hydraulic oil.In the mode of operation of electric control braking and alleviation, the hydraulic braking control unit HCU that is provided with by rail vehicle controls the hydraulic oil first inner chamber 29-1 that hydraulic oil passes in and out aforesaid master cylinder 2.When high-pressure and hydraulic oil enters the hydraulic oil first inner chamber 29-1 by first of casing component 21, compressing release of brake piston 22-3 moves backward, and the motion backward of release of brake piston 22-3 then drives dish spring abutment 25-1 simultaneously and thrust ball bearing with flat seat 22-4 moves backward.Butterfly spring 25-2 is then compressed in the motion backward of dish spring abutment 25-1, and the motion backward of thrust ball bearing with flat seat 22-4 and then promotes lock and transfers mandrel 24-2 to move backward then when the steel ball that first group is bumped pearl 24-1 promotes backward.Lock is transferred the motion backward of mandrel 24-2 to drive then that push rod 23-1 moves backward and in the casing component 21 of the master cylinder 2 of withdrawing, has been realized the alleviation of whole device.During corresponding Decompression valves on opening hydraulic oil pipeline, under the back stretch effect of butterfly spring 25-2, promoting the dish proal while of spring abutment 25-1, make hydraulic oil import and export on the one hand and withdraw from the hydraulic oil first inner chamber 29-1 from first, make dish spring abutment 25-1 transfer the 24-2-2 of round platform portion of mandrel 24-2 to promote lock by the lock that matches with it on the other hand and transfer mandrel 24-2 by the round table surface of the front hole section 25-1-6 of its frustoconic shape, and then drive push rod 23-1 and eject the casing component 21 of master cylinder 2, thereby realized braking.

Second kind of mode of operation: braking under the manual emergency hydraulic control and alleviation (also being that urgent hydraulic pressure is alleviated):

Be formed for feeding the hydraulic oil second inner chamber 29-2 of hydraulic oil between casing component 21, auxiliary braking piston 22-2 and the oil cylinder cover 22-1, and casing component 21 is provided with second import and export of hydraulic oil.When hydraulic braking control unit HCU goes wrong hydraulic oil can not normally pass in and out the hydraulic oil first inner chamber 29-1 time, by hand pump high-pressure and hydraulic oil is imported and exported the injection hydraulic oil second inner chamber 29-2 by second of casing component 21, move backward and promote release of brake piston 22-3 by auxiliary braking piston 22-2, it also is together motion backward of auxiliary braking piston 22-2 and release of brake piston 22-3, the motion backward of release of brake piston 22-3 then makes ensuing action identical with the alleviation under the automatically controlled mode of operation, has also promptly realized the alleviation to braking.This mode of operation is used for the rescue under the failure condition.

The third mode of operation: the alleviation under the armstrong's patent control (also promptly machinery is alleviated):

When push rod 23-1 can not normally withdraw in the casing component 21 of master cylinder 2, position, the rear end 26-1-1 that rotates hand adjustment axle 26-1 by the wrench device of special use rotates hand adjustment axle 26-1, and then drive 2 straight pin 26-2 corresponding sports, the motion of 2 straight pin 26-2 then drives push rod 23-1 and moves backward when rotating with respect to lock aligning axle 24-2, and the front end position of push rod 23-1 is screwed in master cylinder 2 casing components 21, thereby reach mitigation capability by mechanical means.This mode of operation both can be used for the rescue under the failure condition, the adjustment when the initial adjustment in the gap of the brake shoe 68-2 when also can be used for changing brake lining and brake shoe 68-2 may wear to a certain degree.Clockwise rotate hand adjustment axle 26-1 and then make push rod 23-1 eject master cylinder 2 casing components 21 forward, rotate counterclockwise hand adjustment axle 26-1 and then make push rod 23-1 be retracted into master cylinder 2 casing components 21 backward.

When current brake lining 68a and back brake lining 68b brake brake disc 7 clampings simultaneously, all can produce wearing and tearing to a certain degree, and make push rod 23-1 move forward corresponding distance again to the position, thereby just need push rod 23-1 adjustment stroke to reach the function of compensation brake lining wearing and tearing in original front and back.The hydraulic braking gripping mechanism of present embodiment then also has brake clearance and adjusts function automatically in first kind of mode of operation, specifically describe as follows:

Hydraulic braking control unit HCU regular event, hydraulic oil enters in the hydraulic oil first inner chamber 29-1, promote dish spring abutment 25-1 simultaneously and promote lock to transfer mandrel 24-2 to move backward by release of brake piston 22-3 by thrust ball bearing with flat seat 22-4, transfer the 24-2-2 of round platform portion of mandrel 24-2 can't rotate with the round table surface applying of the front hole section 25-1-6 of the frustoconic shape of dish spring abutment 25-1 because of lock, lock transfers nut 24-3 to be fixed together by second group of shell 24-5-1 and coupling 24-4 that bumps pearl 24-5, second group of outside left that stretches out coupling 24-4 that bumps the steel ball of pearl 24-5 moves in the semicolumn groove of dish spring abutment 25-1, when Gu Zha transfers nut 24-3 to be subjected to lock to transfer the active force that mandrel 24-2 moves backward, transfer together motion backward of mandrel 24-2 with lock, and by second group of together motion backward of shell 24-5-1 drive coupling 24-4 of bumping pearl 24-5, when coupling 24-4 moves to when contacting with the conical surface of flare nut 27 backward, then flare nut 27 withstands lock successively by coupling 24-4 and transfers nut 24-3 and lock accent mandrel 24-2, and dish spring abutment 25-1 still was braked and alleviated piston 22-3 and promote backward this moment, the round table surface of the front hole section 25-1-6 of the 24-2-2 of round platform portion of Gu Zha accent mandrel 24-2 and the frustoconic shape of dish spring abutment 25-1 is thrown off mutually, first group of steel ball 24-1-2 that bumps pearl 24-1 then is pressed among its shell 24-1-1 backward, thrust ball bearing with flat seat 22-4 bumped pearl 24-1 by first group and made lock transfer mandrel 24-2 transferring nut 24-3 rotation with respect to lock in the motion backward this moment, thereby when transferring nut 24-3 to rotate with respect to lock and moving backward, also be with together motion backward of push rod 23-1, and around push rod 23-1 rotation, move backward with respect to push rod 23-1 in the rotation, just because of this existence of moving, realized the compensation of stroke.When hydraulic oil is pushed out the hydraulic oil first inner chamber 29-1 of master cylinder 2, butterfly spring 25-2 promotes dish spring abutment 25-1 and transfers mandrel 24-2 to match with lock, and then transfer mandrel 24-2 to drive lock by lock and transfer nut 24-3 and coupling 24-4 together to travel forward, go up with the axle sleeve 26-6 that is enclosed within hand adjustment shaft assembly 26 and the ear end face of selflubricating packing ring 26-7 of rear side that is positioned at the annular barrier plate 26-6-1 of axle sleeve 26-6 contacts until the ring barrier plate 24-4-2 of coupling 24-4, thereby make coupling 24-4 not move forward.Because this moment is under the promotion of butterfly spring 25-2, dish spring abutment 25-1 continues to drive lock and transfers mandrel 24-2 to travel forward, lock accent nut 24-3 is fixedlyed connected with coupling 24-4 and can not be moved vertically again, Gu Zha transfers moving forward of mandrel 24-2 to make lock transfer nut 24-3 to rotate about it, brake lining 68a and back brake lining 68b clamp till the brake disc 7 before push rod 23-1 moves forward to, and the Spring balanced of butterfly spring 25-2 is in elastic force and the preceding brake lining 68a and the clamping force sum of back brake lining 68b to brake disc 7 of return spring.The lock of this moment transfers mandrel 24-2 to transfer location restore that the front and back of nut 24-3 the make progress position before alleviate with respect to lock, and lock transfers mandrel 24-2 then to move backward with respect to the position that the front and back of push rod 23-1 make progress, thereby has realized the automatic adjustment of brake clearance.

(embodiment 2)

See Figure 30 and Figure 31, all the other positions of present embodiment are identical with embodiment 1, and difference is: left brake pad pin 61a and right brake pad pin 61b all have only a pin-and-hole 61-1 who is positioned at the rear end.Corresponding with the brake lining pin of this structure, in the present embodiment, threaded pin has only left back threaded pin 67a2 and right back threaded pin 67b2, and does not have left front threaded pin 67a1 and right front threaded pin 67b1; Anti-releasing has only left back anti-66a2 and the right back anti-66b2 that releases of releasing, and do not have left front anti-66a1 and the right front anti-66b1 that releases of releasing.Present embodiment is taked the brake lining pin of this structure, makes convenient to the replacing of brake lining.

Above embodiment is the explanation to embodiment of the present utility model; but not to restriction of the present utility model; person skilled in the relevant technique is under the situation that does not break away from spirit and scope of the present utility model; can also make various conversion and variation and obtain the corresponding technological scheme that is equal to, so all technological schemes that are equal to all should be included into scope of patent protection of the present utility model.

Claims

1. a hydraulic braking gripping mechanism comprises master cylinder (2); It is characterized in that: also comprise clamp pedestal (1), leverage component (3), lever pin (4) and grip module (6); Grip module (6) mainly is made up of clamp left side assembly (6a), the right assembly (6b) of clamp, preceding brake lining (68a) and back brake lining (68b);

Clamp pedestal (1) is the steel integral piece, has master cylinder assembly department (11), lock pin assembly department (12), lever pin left end assembly department (13) and lever pin right-hand member assembly department (14); Lock pin assembly department (12) comprises left lock pin assembly department (12a) and right lock pin assembly department (12b); Left side lock pin assembly department (12a) is positioned at the left bottom of master cylinder assembly department (11), right lock pin assembly department (12b) is positioned at the lower right of master cylinder assembly department (11), lever pin left end assembly department (13) is positioned at the preceding left of master cylinder assembly department (11), and lever pin right-hand member assembly department (14) is positioned at the preceding right-hand of master cylinder assembly department (11);

During master cylinder (2) comprises casing component (21) and all is arranged on casing component (21) and all identical piston component (22), push-rod assembly (23) and the dished spring assembly (25) of axis with the main axis of casing component (21); Master cylinder (2) is fixedly connected on the master cylinder assembly department (11) of clamp pedestal (1) by its casing component (21); Piston component (22) comprises auxiliary braking spare and release of brake piston (22-3); Master cylinder is provided with hydraulic oil first inner chamber (29-1), and this hydraulic oil first inner chamber (29-1) is formed by the space that is surrounded between casing component (21), auxiliary braking spare and the release of brake piston (22-3), and casing component (21) is provided with hydraulic oil first import and export that are connected with hydraulic oil inner chamber (29-1); When hydraulic oil first inner chamber (29-1) of master cylinder (2) injects hydraulic oil, then release of brake piston (22-3) makes the butterfly spring (25-2) of dished spring assembly (25) be in the state that tightens up of compression, makes push-rod assembly (23) be positioned at the position of withdrawal backward simultaneously; When the hydraulic oil pressure release in hydraulic oil first inner chamber (29-1) of master cylinder (2), then butterfly spring (25-2) is in the relaxation state of compression, makes push-rod assembly (23) be positioned at the position of stretching out forward;

The preceding brake lining (68a) of grip module (6) and back brake lining (68b) are tabular component, and all opening connection breach (68-1-1) left are set at left end position separately, at right-hand member position separately sagittal connecting through hole (68-1-2) are set; Before brake lining (68a) and afterwards brake lining (68b) all along about to the vertical setting;

The clamp left side assembly (6a) of grip module (6) comprises left brake pad pin (61a), left sleeve base (62a), left return spring member and threaded pin; Left side return spring member is made of the left front spring seat (63a), left return spring (64a) and the left back spring seat (65a) that link to each other successively according to the past order successively; Before brake lining (68a) and back brake lining (68b) divide front and back by separately be connected breach (68-1-1) from right to left semi-surrounding be arranged on the left brake pad pin (61a), and be with left sleeve base (62a), left front spring seat (63a), left return spring (64a) and left back spring seat (65a) successively being positioned on the position between preceding brake lining (68a) and back brake lining (68b) of left brake pad pin (61a), and the leading portion of left return spring (64a) and left front spring seat (63a) are enclosed within on the left sleeve base (62a) according to backward order in the past; The front end of left brake pad pin (61a) is arranged on the front portion of left lock pin assembly department (12a) of clamp pedestal (1), the rear end of left brake pad pin (61a) is arranged on the rear portion of left lock pin assembly department (12a) of clamp pedestal (1), and is fixed on the left lock pin assembly department (12a) of clamp pedestal (1) by the one or both ends of respective threads pin with the front end and back end of left brake pad pin (61a);

The right assembly of the clamp of grip module (6) (6b) comprises right brake pad pin (61b), right sleeve base (62b), right return spring member and threaded pin; Right return spring member is made of the right front spring seat (63b), right return spring (64b) and the right back spring seat (65b) that link to each other successively according to the past order successively; Preceding brake lining (68a) and back brake lining (68b) branch front and back are enclosed within on the right brake pad pin (61b) by connecting through hole (68-1-2) separately, and be with right sleeve base (62b), right front spring seat (63b), right return spring (64b) and right back spring seat (65b) successively being positioned on the position between preceding brake lining (68a) and back brake lining (68b) of right brake pad pin (61b), and the leading portion of right return spring (64b) and right front spring seat (63b) are enclosed within on the right sleeve base (62b) according to backward order in the past; The front end of right brake pad pin (61b) is arranged on the front portion of right lock pin assembly department (12b) of clamp pedestal (1), the rear end of right brake pad pin (61b) is arranged on the rear portion of right lock pin assembly department (12b) of clamp pedestal (1), and is fixed on the right lock pin assembly department (12b) of clamp pedestal (1) by the one or both ends of respective threads pin with the front end and back end of right brake pad pin (61b);

Leverage component (3) is fixed together with lever pin (4); Leverage component (3) is along the upward and downward setting, the axis of lever pin (4) along about to setting; The left end of lever pin (4) stretches in the lever pin left end assembly department (13) of clamp pedestal (1), and is rotationally connected with lever pin left end assembly department (13); The right-hand member of lever pin (4) stretches in the lever pin right-hand member assembly department (14) of clamp pedestal (1), and is rotationally connected with lever pin right-hand member assembly department (14); Leverage component (3) is contacted with push-rod assembly (23) the front end position of master cylinder (2) by the rear side on its top, and leverage component (3) is contacted with the middle part of the leading flank of the preceding brake lining (68a) of grip module (6) by the rear side of its underpart.

2. hydraulic braking gripping mechanism according to claim 1 is characterized in that: the master cylinder assembly department (11) of described clamp pedestal (1) comprises substrate (11-1) and mounting plate (11-2); Substrate (11-1) is horizontally disposed with; The setting of mounting plate (11-2) vertical, and its plate body is provided with the sagittal through hole as the central hole (11-3) of master cylinder assembly department (11); Also be provided with corresponding sagittal installation screw (11-4) on the plate body of mounting plate (11-2); Mounting plate (11-2) is connected from the top on the front portion of upside of substrate (11-1);

Lock pin assembly department (12) comprises left connecting base (12-1), right connecting base (12-2), left front seat (12-3), right front seat (12-4) and back seat (12-5); Left side connecting base (12-1) is connected from left on the left side of substrate (11-1) of master cylinder assembly department (11); Right connecting base (12-2) is from the right side of the right-hand substrate (11-1) that is connected master cylinder assembly department (11); Left front seat (12-3) is connected from the below on the front portion of downside of left connecting base (12-1), and right front seat (13-4) is connected from the below on the front portion of downside of right connecting base (12-2); Back seat (12-3) is connected from the below on the rear portion of downside of substrate (11-1), and its left end position is connected from the below on the rear portion of downside of left connecting base (12-1), and its right-hand member position is connected from the below on the rear portion of downside of right connecting base (12-2); Thereby the left end position of left front seat (12-3) and back seat (12-3) constitutes the left lock pin assembly department (12a) of lock pin assembly department (12) jointly, and the right-hand member position of right front seat (134) and back seat (12-3) constitutes the right lock pin assembly department (12b) of lock pin assembly department (12) jointly;

Left front seat (12-3) is provided with left front mounting hole (12-3-1), left front through hole (12-3-2) and left front blind hole (12-3-3); The axis of left front mounting hole (12-3-1) along front and back to setting; The axis of left front through hole (12-3-2) and left front blind hole (12-3-3) identical and along about to setting, and the axis of left front through hole (12-3-2) is also along the radially setting of left front mounting hole (12-3-1), and left front blind hole (12-3-3) is provided with internal thread; Right front seat (12-4) is provided with right front mounting hole (12-4-1), right front through hole (12-4-2) and right front blind hole; The axis of right front mounting hole (12-4-1) along front and back to setting; The axis of right front through hole (12-4-2) and right front blind hole identical and along about to setting, and the axis of right front through hole (12-4-2) is also along the radially setting of right front mounting hole (12-4-1), and right front blind hole is provided with internal thread; The left end position of back seat (12-5) is provided with left back mounting hole (12-5-1), the right-hand member position of back seat (12-5) is provided with right back mounting hole (12-5-2), and left front mounting hole (12-3-1) coaxial line of left back mounting hole (12-5-1) and left front seat (12-3), right front mounting hole (12-4-1) coaxial line of right back mounting hole (12-5-2) and right front seat (12-4); The left end position of back seat (12-5) also is provided with left back through hole (12-5-3) and left back blind hole (12-5-5); The axis of left back through hole (12-5-3) and left back blind hole (12-5-5) identical and along about to setting, and the axis of left back through hole (12-5-3) is along the radially setting of left back mounting hole (12-5-1), and left back blind hole (12-5-5) is provided with internal thread; The right-hand member position of back seat (12-5) also is provided with right back through hole (12-5-4) and right back blind hole; The axis of right back through hole (12-5-4) and right back blind hole identical and along about to setting, and the axis of right back through hole (12-5-4) is along the radially setting of right back mounting hole (12-5-2), and right back blind hole is provided with internal thread;

The rear and front end of the right brake pad pin (61b) of the right assembly of the left brake pad pin (61a) of clamp left side assembly (6a) and clamp (6b) respectively is provided with a pin-and-hole (61-1);

After left front threaded pin (67a1) passes the pin-and-hole of front end of left front through hole (12-3-2), left brake pad pin (61a) of left front seat (12-3) from left to right successively, screw in the left front blind hole (12-3-3) of left front seat (12-3), thereby the front end of left brake pad pin (61a) is fixed on the left front seat (12-3); After left back threaded pin (67a2) passes the pin-and-hole (61-1) of rear end of left back through hole (12-5-3), left brake pad pin (61a) of back seat (12-5) from left to right successively, screw in the left back blind hole (12-5-5) of back seat (12-5), thereby the rear end of left brake pad pin (61a) is fixed on the left part of back seat (12-5) of clamp pedestal (1), also promptly makes left brake pad pin (61a) be fixed on the left lock pin assembly department (12a) of clamp pedestal (1);

After right front threaded pin (67b1) passes the pin-and-hole of front end of right front through hole (12-4-2), right brake pad pin (61b) of right front seat (12-4) from right to left successively, screw in the right front blind hole of right front seat (12-4), thereby the front end of right brake pad pin (61b) is fixed on the right front seat (12-4) of clamp pedestal 1; After right back threaded pin (67b2) passes the pin-and-hole (61-1) of rear end of right back through hole (12-5-4), right brake pad pin (61b) of back seat (12-5) from right to left successively, screw in the right back blind hole of back seat (12-5), thereby the rear end of right brake pad pin (61b) is fixed on the right part of back seat (12-5) of clamp pedestal (1), also promptly makes right brake pad pin (61b) be fixed on the right lock pin assembly department (12b) of clamp pedestal.

3. hydraulic braking gripping mechanism according to claim 1 is characterized in that: the master cylinder assembly department (11) of described clamp pedestal (1) comprises substrate (11-1) and mounting plate (11-2); Substrate (11-1) is horizontally disposed with; The setting of mounting plate (11-2) vertical, and its plate body is provided with the sagittal through hole as the central hole (11-3) of master cylinder assembly department (11); Also be provided with corresponding sagittal installation screw (11-4) on the plate body of mounting plate (11-2); Mounting plate (11-2) is connected from the top on the front portion of upside of substrate (11-1);

Lock pin assembly department (12) comprises left connecting base (12-1), right connecting base (12-2), left front seat (12-3), right front seat (12-4) and back seat (12-5); Left side connecting base (12-1) is connected from left on the left side of substrate (11-1) of master cylinder assembly department (11); Right connecting base (12-2) is from the right side of the right-hand substrate (11-1) that is connected master cylinder assembly department (11); Left front seat (12-3) is connected from the below on the front portion of downside of left connecting base (12-1), and right front seat (13-4) is connected from the below on the front portion of downside of right connecting base (12-2); Back seat (12-3) is connected from the below on the rear portion of downside of substrate (11-1), and its left end position is connected from the below on the rear portion of downside of left connecting base (12-1), and its right-hand member position is connected from the below on the rear portion of downside of right connecting base (12-2); Thereby the left end position of left front seat (12-3) and back seat (12-3) constitutes the left lock pin assembly department (12a) of lock pin assembly department (12) jointly, and the right-hand member position of right front seat (13-4) and back seat (12-3) constitutes the right lock pin assembly department (12b) of lock pin assembly department (12) jointly;

Left front seat (12-3) is provided with left front mounting hole (12-3-1); The axis of left front mounting hole (12-3-1) along front and back to setting; Right front seat (12-4) is provided with right front mounting hole (12-4-1); The axis of right front mounting hole (12-4-1) along front and back to setting; The left end position of back seat (12-5) is provided with left back mounting hole (12-5-1), the right-hand member position of back seat (12-5) is provided with right back mounting hole (12-5-2), and left front mounting hole (12-3-1) coaxial line of left back mounting hole (12-5-1) and left front seat (12-3), right front mounting hole (12-4-1) coaxial line of right back mounting hole (12-5-2) and right front seat (12-4); The left end position of back seat (12-5) also is provided with left back through hole (12-5-3) and left back blind hole (12-5-5); The axis of left back through hole (12-5-3) and left back blind hole (12-5-5) identical and along about to setting, and the axis of left back through hole (12-5-3) is along the radially setting of left back mounting hole (12-5-1), and left back blind hole (12-5-5) is provided with internal thread; The right-hand member position of back seat (12-5) also is provided with right back through hole (12-5-4) and right back blind hole; The axis of right back through hole (12-5-4) and right back blind hole identical and along about to setting, and the axis of right back through hole (12-5-4) is along the radially setting of right back mounting hole (12-5-2), and right back blind hole is provided with internal thread;

The rear end of the right brake pad pin (61b) of the right assembly of the left brake pad pin (61a) of clamp left side assembly (6a) and clamp (6b) respectively is provided with a pin-and-hole (61-1);

After left back threaded pin (67a2) passes the pin-and-hole (61-1) of rear end of left back through hole (12-5-3), left brake pad pin (61a) of back seat (12-5) from left to right successively, screw in the left back blind hole (12-5-5) of back seat (12-5), thereby the rear end of left brake pad pin (61a) is fixed on the left part of back seat (12-5) of clamp pedestal (1), also promptly makes left brake pad pin (61a) be fixed on the left lock pin assembly department (12a) of clamp pedestal (1);

After right back threaded pin (67b2) passes the pin-and-hole (61-1) of rear end of right back through hole (12-5-4), right brake pad pin (61b) of back seat (12-5) from right to left successively, screw in the right back blind hole of back seat (12-5), thereby the rear end of right brake pad pin (61b) is fixed on the right part of back seat (12-5) of clamp pedestal (1), also promptly makes right brake pad pin (61b) be fixed on the right lock pin assembly department (12b) of clamp pedestal.

4. hydraulic braking gripping mechanism according to claim 2 is characterized in that: the clamp left side assembly (6a) of described grip module (6) also comprises left front anti-releasing (66a1) and left back anti-release (66a2); The right assembly of clamp (6b) also comprises right front anti-releasing (66b1) and right back anti-release (66b2); Each anti-releasing is tabular steel integral piece; Each anti-shape that releases is all identical with size, all mainly by connecting plate (66-1) formation that links to each other with limiting board (66-2); Limiting board (66-2) is the bending state with connecting plate (66-1) and links to each other; Connecting plate (66-1) is provided with the attachment hole that is used to pass threaded pin;

Left front anti-release (66a1) is arranged between the left front seat (12-3) of left front threaded pin (67a1) and clamp pedestal (1), and left front anti-release (66a1) is pressed abd fixed on the left front seat (12-3) by left front threaded pin (67a1), and the ear end face of the limiting board (66-2) of left front anti-release (66a1) contacts with the front-end face of left front seat (12-3); Left back anti-release (66a2) is arranged between the left end position of back seat (12-5) of left back threaded pin (67a2) and clamp pedestal (1), and on the left end position of the back seat (12-5) that left back anti-release (66a2) is pressed abd fixed on by left back threaded pin (67a2), and the front-end face of the limiting board (66-2) of left back anti-release (66a2) contacts with the ear end face at the left end position of back seat (12-5); Right front anti-release (66b1) is arranged between the right front seat (12-4) of right front threaded pin (67b1) and clamp pedestal (1), and right front anti-release (66b1) is pressed abd fixed on the right front seat (12-4) by right front threaded pin (67b1), and the ear end face of the limiting board (66-2) of right front anti-release (66b1) contacts with the front-end face of right front seat (12-4); Right back anti-release (66b2) is arranged between the right-hand member position of back seat (12-5) of right back threaded pin (67b2) and clamp pedestal (1), and on the right-hand member position of the back seat (12-5) that right back anti-release (66b2) is pressed abd fixed on by right back threaded pin (67b2), and the front-end face of the limiting board (66-2) of right back anti-release (66b2) contacts with the ear end face at the right-hand member position of back seat (12-5).

5. hydraulic braking gripping mechanism according to claim 3 is characterized in that: the clamp left side assembly (6a) of described grip module (6) also comprises left back anti-release (66a2); The right assembly of clamp (6b) also comprises right back anti-release (66b2); Each anti-releasing is tabular steel integral piece; Each anti-shape that releases is all identical with size, all mainly by connecting plate (66-1) formation that links to each other with limiting board (66-2); Limiting board (66-2) is the bending state with connecting plate (66-1) and links to each other; Connecting plate (66-1) is provided with the attachment hole that is used to pass threaded pin;

Left back anti-release (66a2) is arranged between the left end position of back seat (12-5) of left back threaded pin (67a2) and clamp pedestal (1), and on the left end position of the back seat (12-5) that left back anti-release (66a2) is pressed abd fixed on by left back threaded pin (67a2), and the front-end face of the limiting board (66-2) of left back anti-release (66a2) contacts with the ear end face at the left end position of back seat (12-5); Right back anti-release (66b2) is arranged between the right-hand member position of back seat (12-5) of right back threaded pin (67b2) and clamp pedestal (1), and on the right-hand member position of the back seat (12-5) that right back anti-release (66b2) is pressed abd fixed on by right back threaded pin (67b2), and the front-end face of the limiting board (66-2) of right back anti-release (66b2) contacts with the ear end face at the right-hand member position of back seat (12-5).

6. according to the described hydraulic braking gripping mechanism of one of claim 2 to 5, it is characterized in that: lever pin left end assembly department (13) comprises left sideboard (13-1) and left fitting seat (13-2); Left sideboard (13-1) is connected from left by its rear end, right side on the left side of mounting plate (11-2) of master cylinder assembly department (11), and is linked to each other with the front portion, right side of the left connecting base (12-1) of lock pin assembly department (12) by its rear end, left side; A left side fitting seat (13-2) be provided with as about lever pin left end mounting hole (13-3) to through hole; Left side fitting seat (13-2) is connected from the below by the upside of the front portion at its left end position on the downside of front portion of left sideboard (13-1), and by the left side at the rear portion at its left end position from the right side at the right-hand rear portion that is connected left sideboard (13-1);

Lever pin right-hand member assembly department (14) comprises right sideboard (14-1) and right fitting seat (14-2); Right sideboard (14-1), and is linked to each other with the front portion, left side of the right connecting base (12-2) of lock pin assembly department (12) by its rear end, right side from the right side of the right-hand mounting plate (11-2) that is connected master cylinder assembly department (11) by its rear end, left side; Right fitting seat (14-2) be provided with as about lever pin right-hand member mounting hole (14-3) to through hole, and this lever pin right-hand member mounting hole (14-3) and lever pin left end mounting hole (13-3) coaxial line; Right fitting seat (14-2) is connected from the below by the upside of the front portion at its right-hand member position on the downside of front portion of right sideboard (14-1), and is connected from left by the right side at the rear portion at its right-hand member position on the left side at rear portion of right sideboard (14-1).

7. hydraulic braking gripping mechanism according to claim 6 is characterized in that: also comprise left cover (51) and right cover plate (52); Described left cover (51) is fixed on the left side of left fitting seat (13-2) from left, and covers lever pin left end mounting hole (13-3) from left; Right cover plate (52) is from the right-hand right side that is fixed on right fitting seat (14-2), and from the right-hand lever pin right-hand member mounting hole (14-3) that covers.