CN103511517A - Energy storage type parking unit brake cylinder - Google Patents
Energy storage type parking unit brake cylinder Download PDFInfo
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- CN103511517A CN103511517A CN201210221712.7A CN201210221712A CN103511517A CN 103511517 A CN103511517 A CN 103511517A CN 201210221712 A CN201210221712 A CN 201210221712A CN 103511517 A CN103511517 A CN 103511517A
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Abstract
The invention discloses an energy storage type parking unit brake cylinder. The energy storage type parking unit brake cylinder comprises a unit brake cylinder and a parking brake cylinder, a brake piston comprises a piston body and a piston pipe, the piston body is matched with the inner wall of a brake cylinder block, one end of the brake cylinder block is fixedly connected with a middle body, a buffering spring is arranged between the middle body and the brake piston, and the periphery of the piston pipe is in sliding fit with the inner wall of a central pipe of the middle body. The piston pipe is composed of a regulating nut and a guide nut in a connected mode, a reset mechanism is composed of a screw, a yoke and the like, and the screw is connected with the regulating nut and the guide nut through non-self-locking nuts. The parking brake cylinder comprises a parking cylinder block, a parking piston, a parking regulating nut, a parking spring, a guide pin, a gear ring, a hand brake sleeve, a ball assembly, a pushing ring, a piston pipe cover and a manual-operation buffering device, wherein the parking cylinder block is provided with a second air inlet, and one end of the parking cylinder block is fixedly connected with the middle body. The energy storage type parking unit brake cylinder integrates the parking brake cylinder and the unit brake cylinder, and is compact in structure, small in size and convenient to install.
Description
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Technical field
The present invention relates to a kind of braking device of rail traffic vehicles, particularly a kind of unit brake cylinder that can realize rail traffic vehicles execution parking brake function.
Background technique
Nowadays air damping be widely used on rail traffic vehicles, and brake cylinder is a kind of device that gross vehicle airduct air pressure is delivered to foundation brake part, thereby makes vehicle from moving to the static service brake of carrying out.Because air damping inevitably exists leakage, can not keep railway locomotive parking for a long time on the line or in storehouse, under the effect of the external force such as wind-force, ramp sliding force, easily cause vehicle to produce the unexpected car that slips, there is potential safety hazard, therefore rail traffic vehicles not only needs running braking function, also needs parking brake function.
Track traffic parking brake is broadly divided into two large classes by action principle: 1. hand braking: hand braking is by rotating a manual control dish, through sprocket wheel chain transmission, pull the transmission lever on bogie and be applied to foundation brake, and then wheel is implemented to braking; Opposite spin dashboard during alleviation, alleviates parking brake effect by the reaction force of release spring.The shortcoming of hand brake device is to need human control, and installing space is large, and the difficult control of braking force size.2. energy storing brake: the action principle of energy storing brake is stored energy while utilizing spring-compressed, during elongation, release energy again by (generation spring force) thereby be applied on bogie break and produce parking brake, the compression of spring and elongation adopt air to control, therefore just include parking brake system in air damping control system completely, greatly facilitate manipulation work.Existing loaded brake cylinder is all freestanding, and its shortcoming is to have an independently unit brake cylinder, has again an independently Parking Brake Cylinders, thereby volume is large, installation inconvenience.And the piston of parking of existing accumulation of energy Parking Brake Cylinders is directly installed on hand braking putting by non-self-locking thread, during alleviation, must all the time alleviation be drawn pin to pull out in the teeth groove of hand braking cover.After hand relieving, park cylinder inflation and time also must draw pin to pull out alleviation, otherwise park cylinder, can not inflate, park piston and can not arrive tram and park spring energy-storage with compression, thereby lose its due function.
Summary of the invention
The object of the present invention is to provide a kind of Parking Brake Cylinders and unit brake cylinder to integrate and compact structure, volume are little, be convenient to the energy-storage type park unit brake cylinder installed.
The technological scheme that realizes above-mentioned purpose is: a kind of energy-storage type park unit brake cylinder, comprise unit brake cylinder part and Parking Brake Cylinders part two-part, described unit brake cylinder partly comprises brake cylinder, resetting-mechanism and clearance adjustment mechanism, described brake cylinder comprises and is provided with the brake cylinder casing of the first suction port and is arranged on the brake piston in brake cylinder casing, and described brake piston comprises piston only and the piston tube from piston only middle part to a side extension coordinating with brake cylinder casing inwall; One end of described brake cylinder casing is fixedly connected with intermediate, between intermediate and the piston only of brake piston, is provided with release spring; Described intermediate has center tube, and stretch out outside center tube the center tube inwall of the periphery of the piston tube of brake piston and the intermediate ，Qie end that is slidably matched; Described resetting-mechanism comprises screw mandrel; Described clearance adjustment mechanism comprises that guiding nut forms and adjusting nut forms, and all by non-self-locking thread, is connected with the wire rod thread of resetting-mechanism;
Described guiding nut forms and comprises piston tube lid, guiding nut, guide springs, guiding nut bearing and tapered sleeve, piston tube lid is all connected with piston tube inner hole thread with tapered sleeve, between guiding nut and tapered sleeve, there is cone match, guide springs is placed between piston tube lid and guiding nut bearing, guide springs one end and piston tube lid offset, the other end offsets by guiding nut bearing and guiding nut, under the effect of guide springs, guiding nut bearing promotes guiding nut and contacts with the conical surface between tapered sleeve, the endoporus of guiding nut is shaped with non-self-locking thread, and be connected with the wire rod thread of resetting-mechanism,
Described adjusting nut forms and comprises adjusting nut, cone tooth sliding sleeve, Regulation spring and adjusting nut bearing, cone tooth sliding sleeve periphery and piston tube endoporus that adjusting nut forms are slidably matched, on cone tooth sliding sleeve, there is key to be placed in the guide hole of piston tube, key is also inserted in the guide hole of center tube simultaneously, making to bore tooth sliding sleeve can endwisely slip but can not rotate in piston tube, between cone tooth sliding sleeve and adjusting nut, be all shaped with cone tooth, Regulation spring is placed between adjusting nut bearing and cone tooth sliding sleeve, under the effect of Regulation spring, adjusting nut bearing and adjusting nut offset, adjusting nut and the cone tooth of cone tooth sliding sleeve are meshed, the endoporus of adjusting nut is shaped with non-self-locking thread, and be connected with the wire rod thread of resetting-mechanism,
Described Parking Brake Cylinders partly comprises and is provided with the parking cylinder body, park piston, park adjusting nut, park spring of the second suction port, guide finger, hand braking grip assembly and hand relieving device; Described one end of parking cylinder body is fixedly connected with intermediate, parks piston and is located at and parks in cylinder body and be slidably matched with it, parks spring and is against and parks between piston and intermediate; Described guide finger is located to park between piston and intermediate and with constraint, parks piston and can only carry out straight line motion; Described hand braking grip assembly comprises hand braking cover, gear ring, ball assembly and throw-out collar, a part of inwall of hand braking cover and the center tube periphery of intermediate are slidably matched, another part inner wall sleeve is in the piston tube of brake piston, and the outer wall of hand braking cover has non-self-locking thread; Be enclosed within the piston tube of brake piston to described throw-out collar loose fit, between throw-out collar and hand braking cover, clip ball assembly; Described throw-out collar and piston tube lid offset; Described gear ring is enclosed within outside hand braking cover and is fixedly connected with hand braking cover; Described hand relieving device is installed in to be parked on cylinder body, and hand relieving device has and draws pin and draw pin can be inserted in the teeth groove of gear ring;
The described adjusting nut of parking is placed in the center hole of parking piston, and by a conical surface with park piston and coordinate, and be enclosed within hand braking putting by non-self-locking thread; Park on adjusting nut and also compressed and parked Regulation spring, the other end of parking Regulation spring has compressed thrust-bearing, thrust-bearing under the effect of parking Regulation spring with park piston and offset.
Described parking on piston is provided with jump ring, and jump ring is pressed on thrust-bearing.
Described gear ring and hand braking cover are fixed together by screw, or by interference fit or be fixedly connected by welding together.
Described hand relieving device also comprises alleviating and draws key seat, flap, stay cord assembly, connection set and spring, its medium pulling rope assembly is connected and is drawn pin by connection set, draw pin to be slidably matched to be inserted in to alleviate and draw in the pin-and-hole of key seat, flap is fixed on to alleviate and draws on key seat, spring housing La Xiaoshangqie one end with draw that step on pin offsets, the other end offsets with flap, alleviate to draw key seat and park cylinder body to be fixed together by resilient key; Described connection set comprises lining, resilient pad, nuts and bolt, and two linings are inserted in respectively in the stay cord hole at stay cord assembly two ends, and bolt adopts resilient pad, nut to fix through lining, after drawing the attachment hole of pin.
Described hand relieving device also comprises dirt-proof boot, one end of dirt-proof boot be fixed on draw on pin, the other end is fixed on flap.
Described resetting-mechanism also comprises yoke, reduction nut and Returnning spring, reduction nut is fixedly connected with screw mandrel by pin, between screw mandrel and reduction nut, yoke is housed, yoke and screw mandrel are slidably matched, and there is end-tooth to be meshed, Returnning spring is placed between reduction nut and yoke, and under action of reset spring, screw mandrel and yoke rely on end-tooth to mesh together.
The technique effect that the present invention produces: adopt after the structure of technique scheme, loaded brake cylinder and unit brake cylinder organically closely can be integrated, by reasonable structural design cleverly, make compact structure, volume little, be convenient to install, can realize service brake, also can realize parking brake, form a kind of integrated unit brake cylinder of parking function.The present invention inputs the air pressure size variation of the second suction port by outside, and the spring energy storage effect of parking spring, make to park piston and require to carry out side-to-side movement according to parking, Lever type brake clamp (the not comprising in the present invention) action that drives resetting-mechanism part and connect, to realize brake lining to the clamping of brake disc and loosening up, and then realize parking brake and the alleviation of vehicle.Because the present invention is built-in with and parks adjusting nut parking piston, and by a conical surface with park piston and contact, at the other end of parking adjusting nut, be equipped with thrust-bearing and park Regulation spring, park adjusting nut and be directly installed on hand braking putting by non-self-locking thread, like this when Parking Brake Cylinders and unit brake cylinder are during all in relieved state, without pulling out to alleviate, draw pin to inflate Parking Brake Cylinders, make to park spring compressed with energy storage.The present invention not only has conventional running braking function, also has parking brake function.In addition, also there is following characteristics:
1), parking brake possesses that inflation is alleviated, the function of bleeder brake, braking and alleviating precisely;
2), parking brake also possesses hand relieving function (by pulling pin);
3), parking brake function is integrated on unit brake cylinder, compact structure, takes up room little;
4), reliability and safe;
5), be convenient to dismounting, maintenance, debugging;
6), applicability is wide, can be widely used in needing the vehicle of parking brake, is particularly useful for rail traffic vehicles.
Accompanying drawing explanation
Fig. 1 is the structural representation of energy-storage type park unit brake cylinder of the present invention;
Fig. 2 is the phase diagram of the present invention while realizing parking brake function;
Fig. 3 is the phase diagram of the present invention while realizing the pneumatic alleviation of parking brake;
Fig. 4 is the phase diagram of the present invention while realizing parking brake hand relieving;
Fig. 5 is that the adjusting nut in the present invention forms schematic diagram;
Fig. 6 is that the guiding nut in the present invention forms schematic diagram;
Fig. 7 is that the piston of parking in the present invention forms schematic diagram;
Fig. 8 is the resetting-mechanism schematic diagram in the present invention;
Fig. 9 is the intermediate structure schematic diagram in the present invention;
Figure 10 is the left view of Fig. 9;
Figure 11 is the left view of Fig. 1;
Figure 12 is the structural representation of the hand relieving device in Figure 11.
Embodiment
The present invention is further detailed explanation for the embodiment who provides below in conjunction with accompanying drawing.
As shown in Fig. 1 ~ 12, a kind of energy-storage type park unit brake cylinder of the present invention, comprise unit brake cylinder part and Parking Brake Cylinders part two-part, described unit brake cylinder partly comprises brake cylinder 4, resetting-mechanism 21 and clearance adjustment mechanism, described brake cylinder 4 comprises and is provided with the brake cylinder casing 1 of the first suction port 1-1 and is arranged on the brake piston 2 in brake cylinder casing 1, and described brake piston 2 comprises piston only 2-1 and the piston tube 2-2 from piston only 2-1 middle part to a side extension coordinating with brake cylinder casing 1 inwall; One end of described brake cylinder casing 1 is fixedly connected with intermediate 6, between intermediate 6 and the piston only 2-1 of brake piston 2, is provided with release spring 3; Described intermediate 6 has center tube 6-1, and stretch out outside center tube 6-1 the center tube 6-1 inwall of the periphery of the piston tube 2-2 of brake piston 2 and the intermediate 6 ，Qie end that is slidably matched; Described resetting-mechanism 21 comprises screw mandrel 21-4; Described clearance adjustment mechanism comprises that guiding nut composition 22 and adjusting nut form 23, and all by non-self-locking thread, is threaded with the screw mandrel 21-4 of resetting-mechanism 21;
Described guiding nut forms 22 and comprises piston tube lid 22-1, guiding nut 22-4, guide springs 22-2, guiding nut bearing 22-3 and tapered sleeve 22-5, piston tube lid 22-1 is all connected with piston tube 2-2 inner hole thread with tapered sleeve 22-5, between guiding nut 22-4 and tapered sleeve 22-5, there is conical surface M to coordinate, guide springs 22-2 is placed between piston tube lid 22-1 and guiding nut bearing 22-3, guide springs 22-2 one end and piston tube lid 22-1 offset, the other end offsets by guiding nut bearing 22-3 and guiding nut 22-4, under the effect of guide springs 22-2, guiding nut bearing 22-3 promotes guiding nut 22-4 and contacts with the conical surface M between tapered sleeve 22-5, the endoporus of guiding nut 22-4 is shaped with non-self-locking thread, and be threaded with the screw mandrel 21-4 of resetting-mechanism 21,
Described adjusting nut forms 23 and comprises adjusting nut 23-6, cone tooth sliding sleeve 23-7, Regulation spring 23-3 and adjusting nut bearing 23-4, cone tooth sliding sleeve 23-7 periphery and the piston tube 2-2 endoporus of adjusting nut composition 23 are slidably matched, on cone tooth sliding sleeve 23-7, there is key 23-2 to be placed in the guide hole 2-3 of piston tube 2-2, key 23-2 is also inserted in the guide hole 6-2 of center tube 6-1 simultaneously, making to bore tooth sliding sleeve 23-7 can endwisely slip but can not rotate in piston tube 2-2, between cone tooth sliding sleeve 23-7 and adjusting nut 23-6, be all shaped with cone tooth Z, Regulation spring 23-3 is placed between adjusting nut bearing 23-4 and cone tooth sliding sleeve 23-7, under the effect of Regulation spring 23-3, adjusting nut bearing 23-4 and adjusting nut 23-6 offset, adjusting nut 23-6 and the cone tooth Z of cone tooth sliding sleeve 23-7 are meshed, the endoporus of adjusting nut 23-6 is shaped with non-self-locking thread, and be threaded with the screw mandrel 21-4 of resetting-mechanism 21,
Described Parking Brake Cylinders partly comprises and is provided with the parking cylinder body 27, park piston 9, park adjusting nut 10, park spring 7 of the second suction port 27-1, guide finger 8, hand braking grip assembly and hand relieving device 28; The described cylinder body 27 one end of parking is fixedly connected with intermediate 6, parks piston 9 and is located at and parks in cylinder body 27 and be slidably matched with it, parks spring 7 and is against and parks between piston 9 and intermediate 6; Described guide finger 8 is located to park between piston 9 and intermediate 6 and with constraint, parks piston 9 and can only carry out straight line motion; Described hand braking grip assembly comprises hand braking cover 15, gear ring 14, ball assembly 17 and throw-out collar 18, the center tube 6-1 periphery of a part of inwall of hand braking cover 15 and intermediate 6 is slidably matched, another part inner wall sleeve is on the piston tube 2-2 of brake piston 2, and the outer wall of hand braking cover 15 has non-self-locking thread; The piston tube 2-2 that is enclosed within to described throw-out collar 18 loose fits brake piston 2 is upper, between throw-out collar 18 and hand braking cover 15, clips ball assembly 17; Described throw-out collar 18 offsets with piston tube lid 22-1; Described gear ring 14 is enclosed within outside hand braking cover 15 and is fixedly connected with hand braking cover 15; Described hand relieving device 28 is installed in to be parked on cylinder body 27, and hand relieving device 28 has and draws pin 24 and draw pin 24 can be inserted in the teeth groove of gear ring 14;
The described adjusting nut 10 of parking is placed in the center hole of parking piston 9, and by a conical surface R with park piston 9 and coordinate, and be enclosed within on hand braking cover 15 by non-self-locking thread; Park on adjusting nut 10 and also compressed and parked Regulation spring 11, the other end of parking Regulation spring 11 has compressed thrust-bearing 12, thrust-bearing 12 under the effect of parking Regulation spring 11 with park piston 9 and offset.
As shown in Figure 5, in adjusting nut forms 23, Regulation spring 23-3 one end offsets with cone tooth sliding sleeve 23-7, and the other end offsets by adjusting nut bearing 23-4, back-up ring 23-5 and adjusting nut 23-6.
Resetting-mechanism 21 in the present invention also can adopt the resetting-mechanism of prior art.
As shown in Fig. 1,7, described in park on piston 9 jump ring 13 be installed, jump ring 13 is pressed on thrust-bearing 12.
As shown in Figure 1,2,3, 4, described gear ring 14 is fixed together by screw 16 with hand braking cover 15, or by interference fit or be fixedly connected by welding together.
As shown in Fig. 1,12, described hand relieving device 28 also comprises alleviating and draws key seat 25, flap 37, stay cord assembly 36, connection set 29 and spring 35, its medium pulling rope assembly 36 is connected and is drawn pin 24 by connection set 29, draw pin 24 to be slidably matched to be inserted in to alleviate and draw in the pin-and-hole 25-1 of key seat 25, flap 37 is fixed on to alleviate and draws on key seat 25, spring 35 is enclosed within and draws Xiao24Shang Qie one end and draw that step on pin 24 offsets, the other end offsets with flap 37, alleviates to draw key seat 25 and park cylinder body 27 to be fixed together by resilient key 26; Described connection set 29 comprises that lining 30, resilient pad 31, nut 32 and 33, two linings 30 of bolt are inserted in respectively in the stay cord hole at stay cord assembly 36 two ends, bolt 33 through lining 30, draw and adopt after the attachment hole of pin 24 resilient pad 31, nut 32 fixing.
As shown in figure 12, described hand relieving device 28 also comprises dirt-proof boot 34, dirt-proof boot 34 one end be fixed on draw on pin 24, the other end is fixed on flap 37.
As shown in Figure 8, described resetting-mechanism 21 also comprises yoke 21-1, reduction nut 21-2 and Returnning spring 21-5, reduction nut 21-2 is fixedly connected with screw mandrel 21-4 by pin 21-3, between screw mandrel 21-4 and reduction nut 21-2, yoke 21-1 is housed, yoke 21-1 and screw mandrel 21-4 are slidably matched, and have end-tooth K to be meshed, Returnning spring 21-5 is placed between reduction nut 21-2 and yoke 21-1, under Returnning spring 21-5 effect, screw mandrel 21-4 and yoke 21-1 rely on end-tooth K to mesh together.
As Fig. 1, 6, shown in 8, the working principle of unit brake cylinder: while needing to brake in rail traffic vehicles running, control system is to the first suction port 1-1 incoming pressure air of brake cylinder casing 1, promote brake piston 2 to left movement, by screw thread, be fixedly connected on tapered sleeve 22-5 on piston tube 2-2 in the lump to left movement simultaneously, tapered sleeve 22-5 promotes guiding nut 22-4, effect due to conical surface M, guiding nut 22-4 is rotated by tapered sleeve 22-5 restriction, now yoke 21-1 can not be rotated by lever (the present invention is not shown) constraint, and by the rotation of end-tooth K restriction screw mandrel 21-4, therefore guiding nut 22-4 can promote screw mandrel 21-4, screw mandrel 21-4 passes to yoke 21-1 by end-tooth K by power and opens to left movement one end of promoting lever-type clamp mechanism (the present invention is not shown), and tighten up one end that brake plate support is housed, the brake pad being arranged on brake plate support is pressed on the brake disc rubbing surface running up closely, realize service brake.
Braking process during normal brake lining gap: control system is to the first suction port 1-1 incoming pressure air of brake cylinder casing 1, promote brake piston 2 to left movement, by screw thread, be fixedly connected on tapered sleeve 22-5 on piston tube 2-2 in the lump to left movement simultaneously, tapered sleeve 22-5 promotes guiding nut 22-4, effect due to conical surface M, guiding nut 22-4 is rotated by tapered sleeve 22-5 restriction, now yoke 21-1 can not be rotated by lever constraint, and by the rotation of end-tooth K restriction screw mandrel 21-4, therefore guiding nut 22-4 can promote screw mandrel 21-4, screw mandrel 21-4 passes to yoke 21-1 to left movement by end-tooth K by power, simultaneously brake cylinder casing 1 relative motion to the right under the acting in opposition of air pressure, the both sides lever that yoke 21-1 and brake cylinder casing 1 promote respectively brake rigging clamps to brake disc, the adjusting nut being meanwhile connected with screw mandrel 21-4 by non-self-locking thread forms 23 restrictions due to key 23-2 and can not rotate, therefore with screw mandrel 21-4 together to left movement, until key 23-2 is stopped by guide hole 6-2 one end of intermediate 6, two side bitting clamps that now yoke 21-1 and brake cylinder casing 1 promote respectively brake rigging just clamp brake disc.
As Fig. 1, 5, 6, shown in 8, braking process when brake lining gap is large: the gap between brake lining and brake disc increases because of wearing and tearing, while having exceeded the setting gap of unit brake cylinder, repeat above-mentioned braking process, the first suction port 1-1 incoming pressure air to brake cylinder casing 1, promote brake piston 2 to left movement, the both sides lever that promotes respectively brake rigging when yoke 21-1 and brake cylinder casing 1 clamps to brake disc, while eliminating a normal brake lining gap, key 23-2 on the adjusting nut composition 23 being threaded with screw mandrel 21-4 by non-self-locking thread just encounters the guide hole 6-2 left end of intermediate 6 left, from then on boring tooth sliding sleeve 23-7 can not be to left movement, also can not rotate, now still gapped between brake lining and brake disc, brake piston 2 continues to left movement under the effect of air pressure, by piston tube 2-2, tapered sleeve 22-5, guiding nut 22-4, screw mandrel 21-4, yoke 21-1 continues to promote foundation brake lever and clamps to brake disc, cause adjusting nut 23-6 to throw off with the cone tooth Z of cone tooth sliding sleeve 23-7 during to left movement under the effect of screw mandrel 21-4, once cone tooth Z throws off, adjusting nut 23-6 turns round immediately under the effect of Regulation spring 23-3, move right simultaneously, therefore after eliminating the gap of normal size, adjusting nut forms 23 can not be to left movement together with screw mandrel 21-4, until brake lining clamps brake disc, screw mandrel 21-4 stops to left movement, cone tooth Z meshes again, the first suction port 1-1 exhaust of brake cylinder casing 1 under the effect of control system during alleviation, brake piston 2 moves right under the effect of release spring 3, drive piston tube 2-2 also to move right, because guide springs 22-2 is pressed in guiding nut 22-4 on tapered sleeve 22-5, so brake piston 2, piston tube 2-2, guide springs 22-2, guiding nut 22-4, tapered sleeve 22-5, screw mandrel 21-4, yoke 21-1 etc. moves right together, meanwhile, adjusting nut forms 23 and also moves right under screw mandrel 21-4 thrust to the right, when brake lining leaves brake disc and reaches normal clearance, key 23-2 motion to the right is just stopped by the guide hole 6-2 right-hand member of intermediate 6, adjusting nut forms 23 can not be continued to move right, now adjusting nut 23-6 can not rotate and can not move right, cause screw mandrel 21-4 not move right, whole resetting-mechanism 21 remains on normal clearance position, due to now reset completely of brake piston 2, to under the effect at release spring 3, continue to move right, drive piston tube 2-2, tapered sleeve 22-5 moves right, due to screw mandrel, 21-4 is motionless, guide springs 22-2 is compressed, conical surface M between guiding nut 22-4 and tapered sleeve 22-5 throws off, guiding nut 22-4 rotation with brake piston 2 under the effect of guide springs 22-2 immediately, piston tube 2-2, tapered sleeve 22-5 etc. moves right together, until brake piston 2 arrives release position.
The working principle of parking brake cylinder portion of the present invention is as follows:
Rail vehicle is in running, and control system, to the second suction port 27-1 incoming pressure air of parking cylinder body 27, is parked piston 9 compressions and parked spring 7 to energy accumulating state, and whole Parking Brake Cylinders is in off working state.
As Fig. 2, 6, 7, shown in 8, when rail traffic vehicles needs parking brake, pressure air is discharged from parking the second suction port 27-1 of cylinder body 27, parking spring 7 releases energy and promotes to park piston 9 to left movement, parking piston 9 promotes to park adjusting nut 10 toward left movement by conical surface R, owing to parking adjusting nut 10, be to be connected by non-self-locking thread with hand braking cover 15, therefore, park adjusting nut 10 and promote hand braking cover 15 toward left movement, because gear ring 14 and hand braking cover 15 link together by screw 16, so, hand braking cover 15 drives gear ring 14 to left movement, and gear ring 14 and hand braking cover 15 promotion ball assemblies 17 and throw-out collar 18 are to left movement, throw-out collar 18 covers 22-1 by piston tube and promotes brake piston 2 to left movement, brake piston 2 drives the tapered sleeve 22-5 of fixed connection on piston tube 2-2 in the lump to left movement again, tapered sleeve 22-5 promotes guiding nut 22-4, effect due to conical surface M, guiding nut 22-4 is rotated by tapered sleeve 22-5 restriction, thereby promote screw mandrel 21-4, screw mandrel 21-4 passes to yoke 21-1 by end-tooth K by power and opens to left movement one end of promoting lever-type clamp mechanism, and tighten up one end that brake plate support is housed, by being arranged on brake pad on brake plate support, being pressed in closely on brake disc rubbing surface and producing braking force, realize parking brake.
Like this, the present invention both can realize service brake, also can realize parking brake.
When rail traffic vehicles needs to alleviate under parking brake state, there are two kinds of approach to realize, its working principle is as follows:
1), inflation is alleviated
As shown in Fig. 3,7,6, by parking the second suction port 27-1 of cylinder body 27, be filled with certain pressure air, promotion is parked piston 9 compression and is parked spring 7 and move right, owing to drawing pin 24 to be inserted in the teeth groove of gear ring 14 always, gear ring 14 and hand braking cover 15 are to be again fixed with one by screw 16, so gear ring 14 and hand braking cover 15 neither rotate and also do not move; When parking piston 9 and moving right, jump ring 13 promotes thrust-bearing 12 and moves right, effect due to conical surface R, parking adjusting nut 10 can not rotate, because parking adjusting nut 10, be connected by non-self-locking thread with hand braking cover 15 again, therefore parking adjusting nut 10 neither rotates and does not also move, at this moment along with parking piston 9, move right, park Regulation spring 11 compressed, conical surface R throws off thereupon, at this moment park adjusting nut 10 under the effect of parking Regulation spring 11 because pass that non-self-locking thread connects ties up to rotation on hand braking cover 15, also move right.Parking adjusting nut 10 does not have power to be added on hand braking cover 15, now brake piston 2 is because the effect of release spring 3 moves right, drive tapered sleeve 22-5 to move right, by guiding nut 22-4, power is passed to leading screw 21-4, drive whole resetting-mechanism part 21 to move right and realize and alleviate; Simultaneously, piston tube lid 22-1 promotes throw-out collar 18 and ball assembly 17 moves right, ball assembly 17 and then promote hand braking cover 15 and move right, and hand braking cover 15 drives gear rings 14 to move right, therefore whole Parking Brake Cylinders partial rcsponse, returns to parking brake state before.
2), hand relieving
As Fig. 4, 6, shown in 7, when there is no air pressure, pull pin 24, the rotation restriction of gear ring 14 is cancelled, because gear ring 14 has been cancelled rotation restriction, cause hand braking cover 15 under the effect of axial force, to rotate, now brake piston 2 moves right under the effect of release spring 3 and the reaction force of clamp clamping brake disc, and cover 22-1 by piston tube, promoting throw-out collar 18 and ball assembly 17 is used in alleviation masterpiece to the right on hand braking cover 15, hand braking cover 15 is moved right, under the effect of parking spring 7, park piston 9 and to left movement, accelerated the rotation of hand braking cover 15 simultaneously, until park piston 9, arrive to left and park cylinder body 27, the active force of parking spring 7 is applied to be parked on cylinder body 27, no longer by parking adjusting nut 10, be applied on hand braking cover 15, brake piston 2 is also got back to and is alleviated position under the effect of release spring 3, drive whole resetting-mechanism 21 to get back to release position and complete parking brake alleviation action.
Claims (6)
1. an energy-storage type park unit brake cylinder, comprise unit brake cylinder part and Parking Brake Cylinders part two-part, described unit brake cylinder partly comprises brake cylinder (4), resetting-mechanism (21) and clearance adjustment mechanism, described brake cylinder (4) comprises and is provided with the brake cylinder casing (1) of the first suction port (1-1) and is arranged on the brake piston (2) in brake cylinder casing (1), it is characterized in that:
Described brake piston (2) comprises the piston only (2-1) coordinating with brake cylinder casing (1) inwall and the piston tube (2-2) of extending to a side from piston only (2-1) middle part; One end of described brake cylinder casing (1) is fixedly connected with intermediate (6), between intermediate (6) and the piston only (2-1) of brake piston (2), is provided with release spring (3); Described intermediate (6) has center tube (6-1), and stretch out outside center tube (6-1) center tube (6-1) inwall of the periphery of the piston tube (2-2) of brake piston (2) and intermediate (6) the ，Qie end that is slidably matched; Described resetting-mechanism (21) comprises screw mandrel (21-4); Described clearance adjustment mechanism comprises that guiding nut forms (22) and adjusting nut forms (23), and all by non-self-locking thread, is threaded with the screw mandrel (21-4) of resetting-mechanism (21);
Described guiding nut forms (22) and comprises piston tube lid (22-1), guiding nut (22-4), guide springs (22-2), guiding nut bearing (22-3) and tapered sleeve (22-5), piston tube lid (22-1) is all connected with piston tube (2-2) inner hole thread with tapered sleeve (22-5), between guiding nut (22-4) and tapered sleeve (22-5), there is the conical surface (M) to coordinate, guide springs (22-2) is placed between piston tube lid (22-1) and guiding nut bearing (22-3), guide springs (22-2) one end and piston tube lid (22-1) offset, the other end offsets by guiding nut bearing (22-3) and guiding nut (22-4), under the effect of guide springs (22-2), guiding nut bearing (22-3) promotes guiding nut (22-4) and contacts with the conical surface (M) between tapered sleeve (22-5), the endoporus of guiding nut (22-4) is shaped with non-self-locking thread, and be threaded with the screw mandrel (21-4) of resetting-mechanism (21),
Described adjusting nut forms (23) and comprises adjusting nut (23-6), cone tooth sliding sleeve (23-7), Regulation spring (23-3) and adjusting nut bearing (23-4), cone tooth sliding sleeve (23-7) periphery and piston tube (2-2) endoporus that adjusting nut forms (23) are slidably matched, on cone tooth sliding sleeve (23-7), there is key (23-2) to be placed in the guide hole (2-3) of piston tube (2-2), key (23-2) is also inserted in the guide hole (6-2) of center tube (6-1) simultaneously, making to bore tooth sliding sleeve (23-7) can endwisely slip but can not rotate in piston tube (2-2), between cone tooth sliding sleeve (23-7) and adjusting nut (23-6), be all shaped with cone tooth (Z), Regulation spring (23-3) is placed between adjusting nut bearing (23-4) and cone tooth sliding sleeve (23-7), under the effect of Regulation spring (23-3), adjusting nut bearing (23-4) offsets with adjusting nut (23-6), adjusting nut (23-6) and the cone tooth (Z) of cone tooth sliding sleeve (23-7) are meshed, the endoporus of adjusting nut (23-6) is shaped with non-self-locking thread, and be threaded with the screw mandrel (21-4) of resetting-mechanism (21),
Described Parking Brake Cylinders partly comprises and is provided with the parking cylinder body (27), park piston (9), park adjusting nut (10), park spring (7) of the second suction port (27-1), guide finger (8), hand braking grip assembly and hand relieving device (28); Described one end of parking cylinder body (27) is fixedly connected with intermediate (6), parks piston (9) and is located at and parks in cylinder body (27) and be slidably matched with it, parks spring (7) and is against and parks between piston (9) and intermediate (6); Described guide finger (8) is located to park between piston (9) and intermediate (6) and with constraint, parks piston (9) and can only carry out straight line motion; Described hand braking grip assembly comprises hand braking cover (15), gear ring (14), ball assembly (17) and throw-out collar (18), center tube (6-1) periphery of a part of inwall of hand braking cover (15) and intermediate (6) is slidably matched, another part inner wall sleeve is upper in the piston tube (2-2) of brake piston (2), and the outer wall of hand braking cover (15) has non-self-locking thread; The piston tube (2-2) that is enclosed within to described throw-out collar (18) loose fit brake piston (2) is upper, between throw-out collar (18) and hand braking cover (15), clips ball assembly (17); Described throw-out collar (18) offsets with piston tube lid (22-1); Described gear ring (14) is enclosed within outside hand braking cover (15) and is fixedly connected with hand braking cover (15); Described hand relieving device (28) is installed in that to park cylinder body (27) upper, and hand relieving device (28) has and draws pin (24) and draw pin (24) can be inserted in the teeth groove of gear ring (14);
The described adjusting nut (10) of parking is placed in the center hole of parking piston (9), and by a conical surface (R) with park piston (9) and coordinate, and be enclosed within on hand braking cover (15) by non-self-locking thread; Park on adjusting nut (10) and also compressed and parked Regulation spring (11), the other end of parking Regulation spring (11) has compressed thrust-bearing (12), thrust-bearing (12) under the effect of parking Regulation spring (11) with park piston (9) and offset.
2. energy-storage type park unit brake cylinder according to claim 1, is characterized in that: described in park on piston (9) jump ring (13) be installed, jump ring (13) is pressed on thrust-bearing (12).
3. energy-storage type Parking Brake Cylinders according to claim 1, is characterized in that: described gear ring (14) is fixed together by screw (16) with hand braking cover (15), or by interference fit or be fixedly connected by welding together.
4. energy-storage type park unit brake cylinder according to claim 1, it is characterized in that: described hand relieving device (28) also comprises alleviating and draws key seat (25), flap (37), stay cord assembly (36), connection set (29) and spring (35), its medium pulling rope assembly (36) is connected and is drawn pin (24) by connection set (29), draw pin (24) to be slidably matched to be inserted in to alleviate and draw in the pin-and-hole (25-1) of key seat (25), flap (37) is fixed on to alleviate and draws on key seat (25), spring (35) is enclosed within and draws pin (24) Shang Qie one end and draw the step on pin (24) to offset, the other end and flap (37) offset, alleviate to draw key seat (25) and park cylinder body (27) and be fixed together by resilient key (26), described connection set (29) comprises lining (30), resilient pad (31), nut (32) and bolt (33), two linings (30) are inserted in respectively in the stay cord hole at stay cord assembly (36) two ends, bolt (33) through lining (30), draw and adopt after the attachment hole of pin (24) resilient pad (31), nut (32) fixing.
5. energy-storage type park unit brake cylinder according to claim 4, is characterized in that: described hand relieving device (28) also comprises dirt-proof boot (34), and one end of dirt-proof boot (34) is fixed on draws that pin (24) is upper, the other end is fixed on flap (37).
6. energy-storage type park unit brake cylinder according to claim 1, it is characterized in that: described resetting-mechanism (21) also comprises yoke (21-1), reduction nut (21-2) and Returnning spring (21-5), reduction nut (21-2) is fixedly connected with screw mandrel (21-4) by pin (21-3), between screw mandrel (21-4) and reduction nut (21-2), yoke (21-1) is housed, yoke (21-1) is slidably matched with screw mandrel (21-4), and there is end-tooth (K) to be meshed, Returnning spring (21-5) is placed between reduction nut (21-2) and yoke (21-1), under Returnning spring (21-5) effect, screw mandrel (21-4) relies on end-tooth (K) to mesh together with yoke (21-1).
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| CN201210221712.7A CN103511517B (en) | 2012-06-30 | 2012-06-30 | Energy-storage type park unit brake cylinder |
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| CN201210221712.7A CN103511517B (en) | 2012-06-30 | 2012-06-30 | Energy-storage type park unit brake cylinder |
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| CN103511517B CN103511517B (en) | 2015-12-16 |
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| CN106499752A (en) * | 2016-12-26 | 2017-03-15 | 常州中车铁马科技实业有限公司 | Vehicle brake rigging |
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| CN106763342A (en) * | 2016-12-26 | 2017-05-31 | 常州中车铁马科技实业有限公司 | Storing cycle cylinder |
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| CN108944991A (en) * | 2018-08-15 | 2018-12-07 | 眉山中车制动科技股份有限公司 | A kind of low and slow decompression force parks cylinder |
| CN109050502A (en) * | 2018-08-13 | 2018-12-21 | 眉山中车制动科技股份有限公司 | A kind of rail freight braking force holder |
| CN112721991A (en) * | 2020-12-29 | 2021-04-30 | 青岛思锐科技有限公司 | Parking brake cylinder and brake caliper unit |
| CN112797095A (en) * | 2021-01-04 | 2021-05-14 | 中车青岛四方车辆研究所有限公司 | Parking brake cylinder and brake caliper unit |
| CN112829787A (en) * | 2021-01-04 | 2021-05-25 | 中车青岛四方车辆研究所有限公司 | Method for parking and braking a rail vehicle and parking cylinder for carrying out the method |
| CN113251089A (en) * | 2021-03-17 | 2021-08-13 | 眉山中车制动科技股份有限公司 | Unit brake cylinder with automatic parking function |
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| CN105276038A (en) * | 2015-11-05 | 2016-01-27 | 常州南车铁马科技实业有限公司 | Oil cylinder of rail vehicle braking clamp |
| CN107795617A (en) * | 2016-08-29 | 2018-03-13 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of checking cylinder clearance adjustment mechanism, guiding resistance mode transfer block and checking cylinder |
| CN107795617B (en) * | 2016-08-29 | 2024-05-14 | 中车戚墅堰机车车辆工艺研究所股份有限公司 | Brake cylinder clearance adjustment mechanism, guide and adjustment blocking module and brake cylinder |
| CN106763342A (en) * | 2016-12-26 | 2017-05-31 | 常州中车铁马科技实业有限公司 | Storing cycle cylinder |
| CN106545603B (en) * | 2016-12-26 | 2018-07-27 | 常州中车铁马科技实业有限公司 | Vehicle band Parking Brake Cylinders |
| CN106763309A (en) * | 2016-12-26 | 2017-05-31 | 常州中车铁马科技实业有限公司 | Vehicle band parks brake rigging |
| CN106499752A (en) * | 2016-12-26 | 2017-03-15 | 常州中车铁马科技实业有限公司 | Vehicle brake rigging |
| CN106545603A (en) * | 2016-12-26 | 2017-03-29 | 常州中车铁马科技实业有限公司 | Vehicle band Parking Brake Cylinders |
| CN106763309B (en) * | 2016-12-26 | 2019-04-30 | 常州中车铁马科技实业有限公司 | Vehicle band parks brake rigging |
| CN106523556B (en) * | 2016-12-26 | 2018-07-27 | 常州中车铁马科技实业有限公司 | Vehicle unit checking cylinder |
| CN106523556A (en) * | 2016-12-26 | 2017-03-22 | 常州中车铁马科技实业有限公司 | Vehicle unit brake cylinder |
| CN107461432A (en) * | 2017-09-15 | 2017-12-12 | 中车青岛四方车辆研究所有限公司 | Parking brake module and checking cylinder, brake clamp unit for rail vehicle |
| CN107882901A (en) * | 2017-12-27 | 2018-04-06 | 嘉兴盛鼎机械有限公司 | Brake chamber with self-locking halting mechanism |
| CN107882901B (en) * | 2017-12-27 | 2023-08-08 | 嘉兴盛鼎机械有限公司 | Brake chamber with self-locking parking mechanism |
| CN108662048A (en) * | 2018-08-13 | 2018-10-16 | 眉山中车制动科技股份有限公司 | A kind of retaining mechanism |
| CN108662048B (en) * | 2018-08-13 | 2023-07-04 | 眉山中车制动科技股份有限公司 | Locking mechanism |
| CN109050502A (en) * | 2018-08-13 | 2018-12-21 | 眉山中车制动科技股份有限公司 | A kind of rail freight braking force holder |
| CN109050502B (en) * | 2018-08-13 | 2023-08-04 | 眉山中车制动科技股份有限公司 | Braking force retaining device for railway freight car |
| CN108944991A (en) * | 2018-08-15 | 2018-12-07 | 眉山中车制动科技股份有限公司 | A kind of low and slow decompression force parks cylinder |
| CN112721991B (en) * | 2020-12-29 | 2022-05-17 | 中车制动***有限公司 | Parking brake cylinder and brake caliper unit |
| CN112721991A (en) * | 2020-12-29 | 2021-04-30 | 青岛思锐科技有限公司 | Parking brake cylinder and brake caliper unit |
| CN112797095B (en) * | 2021-01-04 | 2022-06-28 | 中车青岛四方车辆研究所有限公司 | Parking brake cylinder and brake caliper unit |
| WO2022142541A1 (en) * | 2021-01-04 | 2022-07-07 | 中车青岛四方车辆研究所有限公司 | Parking brake cylinder and brake caliper unit |
| CN112829787B (en) * | 2021-01-04 | 2022-07-26 | 中车青岛四方车辆研究所有限公司 | Parking brake method for rail vehicles and parking cylinder for carrying out said method |
| CN112829787A (en) * | 2021-01-04 | 2021-05-25 | 中车青岛四方车辆研究所有限公司 | Method for parking and braking a rail vehicle and parking cylinder for carrying out the method |
| CN112797095A (en) * | 2021-01-04 | 2021-05-14 | 中车青岛四方车辆研究所有限公司 | Parking brake cylinder and brake caliper unit |
| CN113251089A (en) * | 2021-03-17 | 2021-08-13 | 眉山中车制动科技股份有限公司 | Unit brake cylinder with automatic parking function |
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Address after: 213011 258 Wuyi Road, Changzhou, Jiangsu Patentee after: CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co.,Ltd. Country or region after: China Patentee after: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Address before: 213011 258 Wuyi Road, Changzhou, Jiangsu Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. Country or region before: China Patentee before: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. |