CN107120368A - A kind of double push rod air-pressure disc brakes of floating tong type radial direction - Google Patents
A kind of double push rod air-pressure disc brakes of floating tong type radial direction Download PDFInfo
- Publication number
- CN107120368A CN107120368A CN201710372746.9A CN201710372746A CN107120368A CN 107120368 A CN107120368 A CN 107120368A CN 201710372746 A CN201710372746 A CN 201710372746A CN 107120368 A CN107120368 A CN 107120368A
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- Prior art keywords
- chamber
- pressing plate
- push rod
- brake
- rotating shaft
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/14—Mechanical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a kind of floating tong type radially double push rod air-pressure disc brakes, including caliper body, rotating shaft assembly, two brake pads, brake disc, pressing plate and support；Caliper body is formed in one structure, including first chamber and second chamber, and first chamber is connected with second chamber on horizontal axis, and the vertical of second chamber is radially provided with pressing plate fixture；Caliper body constitutes floating tong type structure with support by pilot pin, rotating shaft assembly is installed in caliper body second chamber, two brake pads are rack-mount, and brake pad is placed in first chamber, two braking surfaces of brake disc are in contact with two brake pads respectively, pressing plate is installed on pressing plate fixture, and pressing plate passes through stage clip pressing friction block.Radially caliper body is designed as integrated formed structure to the floating tong type by double push rod air-pressure disc brakes, reduces the number of components that existing split type caliper body is assembled to each part, and then alleviates the weight of brake, while improving the intensity and rigidity of brake.
Description
Technical field
The invention belongs to technical field of automobile parts, and in particular to a kind of double push rod air-pressure disc type brakes of floating tong type radial direction
Device.
Background technology
The urban traffic pressure of Rapid Expansion is increasing, and public transport needs to transport more within the shorter turnaround time
Passenger, thus Large Copacity, low emission, the low-floor city bus rapid growth of ride comfort.With new energy vehicle
Popularization and application, all configure air suspension back axle extensively including the station wagon of highway operation.In recent years, air-pressure disc brake
Because its advantage relative to drum brake is able to extensive use, drum is gradually expanded to front-rear axle and all uses disc type system after shroud
Dynamic device.
In low-floor bus, station wagon and Medium or severe type commerial vehicle in order to meet configuration air suspension/after
Bridge use requirement, the radial disk type brake for installing parking spring air chamber is able to develop and applied, and solves axial disk braking
Device back axle can not space arrange the problem of.
However, at present there is following deficiency in existing radial gas pressure disk brake：
1st, brake volume is larger, heavier-weight, and being limited to back axle narrow space causes using being limited in scope, it is impossible to meet vehicle
Lightweight requirements.
2nd, brake caliper is generally complicated Split type structure, and number of parts is more, is unfavorable for processing and assembling, and bolt connection
There is the risk of failure in position, sealing surface is more.
3rd, the part of brake inside clearance self-regulating structure is scattered, is unfavorable for assembling and Properties Control, is not easy to maintenance and protects
Support.
4th, brake Split type structure is complicated, and caliper body rigid deformation is big, the stable output of influence braking moment.
The content of the invention
The purpose of the present invention be overcome the shortcomings of existing radial gas pressure disk brake there is provided a kind of structure it is relatively easy,
Lighter weight, braking moment are larger and performance is stable, the radial gas pressure disk brake of convenient maintenance.
The technical scheme is that there is provided a kind of floating tong type radially double push rod air-pressure disc brakes, including clamp
Body, rotating shaft assembly, two brake pads, brake disc, pressing plate and support；
The caliper body is formed in one structure, includes accommodating the first chamber of brake disc and accommodates the second chamber of rotating shaft assembly
Room, the first chamber is connected with second chamber on horizontal axis, and the vertical of the second chamber is radially provided with gas
Room mounting hole, the vertical of the first chamber is radially provided with pressing plate fixture；
The caliper body constitutes floating tong type structure with support by pilot pin, and the rotating shaft assembly is installed on caliper body second chamber
Interior, two brake pads are rack-mount, and brake pad is placed in first chamber, two braking surfaces point of the brake disc
It is not in contact with two brake pads, the pressing plate is installed on the pressing plate fixture, and the pressing plate passes through stage clip pressure
The upper surface of the tight brake pad.
Further, the rotating shaft assembly includes pressure arm, fulcrum cylinder, reference seat, return spring, governor motion, master
Dynamic rotating shaft, screw rod, gear, bottom, pushing plate, driven spindle, fixing card；
The fulcrum cylinder is connected with pressure arm by small needle roller pair, and the pressure arm is arranged on reference seat by big needle roller pair
On, the return spring is located between reference seat and bottom, and the active rotating shaft and driven spindle are connected to reference seat two
Side, is connected between active rotating shaft and driven spindle by the engagement of three gears, and the active rotating shaft and driven spindle are respectively with two
Individual screw rod connection, the end of screw rod is connected in pushing plate through bottom by small back-up ring, and the pressure arm passes through drive of pulling pin
Governor motion is rotated, and the governor motion is arranged on active rotating shaft and can rotated around active rotating shaft, fixing card one end peace
On pressure arm, the other end is fixed on bottom.
Further, the pressure arm includes pressure arm load portion and rotating part, and described pressure arm load portion one end is provided with
Pressure arm ball-and-socket, pressure arm ball-and-socket and the air chamber mounting hole are just right, and the pressure arm load portion other end has first to fix
Portion and the second fixed part, the rotating part include inner cylinder face and external cylindrical surface, first fixed part and the second fixed part
It is not fixedly connected with the two side middle part on rotating part parallel to rotating part symmetry axis, the inner cylinder face center and external cylindrical surface
Center eccentric setting, and inner cylinder face center with respect to external cylindrical surface center close to pressure arm ball-and-socket.
Further, connected between first fixed part and the second fixed part in the pressure arm load portion by arc-shaped transitional surface
Connect, and the inner cylinder face of arc-shaped transitional surface and rotating part constitutes hollow cylinder.
Further, upper and lower surface is symmetrically each provided with two reference seat spigot surfaces inside the second chamber, and described the
Be arranged with parallel in the front end side wall of two chambers two processing holes, two processing holes with being communicated inside the second chamber,
And it is machined with two circular orientation faces by processing the anti-boring in hole.
The further fixing card includes passing through two between two clamping plates being oppositely arranged, two clamping plate upper ends
The connecting plate connection that relative spacing is set, two clamping plate lower ends are equipped with grab, two connecting plates respectively with pressure
Arm both sides are fixed, and the grab is fixed on bottom.
Further, the first chamber corner has the chamfering of two superpositions.
Further, the pressing plate fixture includes afterbody boss, head channel and fixed buckle, the afterbody boss and head
Portion's groove is arranged on the first chamber upper surface of caliper body, and head channel is inserted in described pressing plate one end, the other end by fixed buckle with
Afterbody boss is fixedly connected.
Further, the pressing plate two ends have first connecting portion and second connecting portion respectively, and the first connecting portion is inserted
Enter head channel, the second connecting portion is provided with open slot, the open slot along along pressing plate axis direction opening size not
Less than afterbody projection width；Neck is provided with the inside of the afterbody boss, the open slot is inserted in afterbody boss, and open slot side
In wall insertion neck, fixed between open slot and the afterbody outside the boss by fixed buckle.
Further, the fixed buckle includes W types deduction part, and is connected and stretches out with W types deduction part both sides
Stop section, each side wall in W types deduction part abuts against with afterbody outside the boss and open slot madial wall respectively, the stop section
Block is on the pressing plate.
Compared with prior art, beneficial effects of the present invention：
(1) radially caliper body is designed the knot that is formed in one to this floating tong type that the present invention is provided by double push rod air-pressure disc brakes
Structure, reduces the number of parts assembled in existing split-type structural to each part, and then alleviates the weight of brake, together
When improve the intensity and rigidity of brake.
(2) radially double push rod air-pressure disc brakes add to turn this floating tong type that the present invention is provided in caliper body
The limit function of reference seat in axle assembly, is lost, it is ensured that rotating shaft with reducing the mechanical efficiency of clearance self-regulating mechanism of rotating shaft assembly
The steady operation of assembly, improves insensitivity and brake service life.
(3) the pressure arm knot of rotating shaft assembly in the double push rod air-pressure disc brakes of this floating tong type radial direction that the present invention is provided
Structure design is more reasonable, and mechanical efficiency is lost caused by reducing its stress deformation, has ensured the output of larger braking moment.
(4) the double push rod air-pressure disc brakes of this floating tong type radial direction that the present invention is provided are by have changed limitation brake pad
Pressing plate installation form, reduce the machining operation of caliper body, reduce the processing cost of clamp, and make pressing plate more
Plus convenient installation.
The present invention is described in further details below with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation of the double push rod air-pressure disc brakes of floating tong type radial direction of the present invention；
Fig. 2 is the top view of caliper body in the double push rod air-pressure disc brakes of floating tong type radial direction of the present invention；
Fig. 3 is the side view of caliper body in the double push rod air-pressure disc brakes of floating tong type radial direction of the present invention；
Fig. 4 is the sectional view of the second chamber of caliper body in the double push rod air-pressure disc brakes of floating tong type radial direction of the present invention；
Fig. 5 is the structural representation of rotating shaft assembly in the double push rod air-pressure disc brakes of floating tong type radial direction of the present invention；
Fig. 6 is the schematic cross-section along A-A directions in Fig. 5；
Fig. 7 is the structural representation of pressure arm in the double push rod air-pressure disc brakes of floating tong type radial direction of the present invention；
Fig. 8 is the structural representation of fixing card in the double push rod air-pressure disc brakes of floating tong type radial direction of the present invention；
Fig. 9 is the structural representation of reference seat in the double push rod air-pressure disc brakes of floating tong type radial direction of the present invention；
Figure 10 is that floating tong type of the present invention radially with pressing plate fixture mounting structure illustrate by double push rod air-pressure disc brake center platens
Figure；
Figure 11 is floating tong type of the present invention radially double push rod air-pressure disc brake center platen structural representations；
Figure 12 is the structural representation that floating tong type of the present invention radially fixes buckle in double push rod air-pressure disc brakes.
Description of reference numerals：1st, rotating shaft assembly；2nd, caliper body；3rd, support；4th, brake disc；5th, brake pad；6th, first chamber；
7th, pressing plate；8th, second chamber；9th, air chamber mounting hole；10th, chamfering；11st, reference seat spigot surface；12nd, hole is processed；13rd, annular stop
Face；14th, afterbody boss；15th, neck；16th, head channel；17th, pressure arm；18th, governor motion；19th, active rotating shaft；20th, screw rod；
21st, gear；22nd, bottom；23rd, small back-up ring；24th, pushing plate；25th, return spring；26th, driven spindle；27th, fixing card；28th, fulcrum
Cylinder；29th, small needle roller pair；30th, big needle roller pair；31st, reference seat；32nd, pull pin；33rd, pressure arm ball-and-socket；34th, pressure arm load portion；
35th, the first fixed part；36th, external cylindrical surface；37th, inner cylinder face；38th, rotating part；39th, the second fixed part；40th, arc-shaped transitional surface；
41st, connecting plate；42nd, clamping plate；43rd, grab；44th, second connecting portion；45th, fixed buckle；46th, open slot；47th, first connecting portion；
48th, W types deduction part；49th, stop section；50th, fixed projection.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is all other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in Figure 1, Figure 2 and Figure 3, a kind of floating tong type radially double push rod air-pressure disc brakes are present embodiments provided,
Including caliper body 2, rotating shaft assembly 1, two brake pads 5, brake disc 4, pressing plate 7 and support 3；The caliper body 2 is formed in one
Structure, including accommodate the first chamber 6 of brake disc 4 and accommodate the second chamber 8 of rotating shaft assembly 1, the first chamber 6 and second
Chamber 8 is connected on horizontal axis, and the vertical of the second chamber 8 is radially provided with air chamber mounting hole 9, first chamber
The vertical of room 6 is radially provided with pressing plate fixture；The caliper body 2 constitutes floating tong type structure with support 3 by pilot pin, described
Rotating shaft assembly 1 is installed in the second chamber 8 of caliper body 2, and two brake pads 5 are arranged on support 3, and brake pad 5 is put
In in first chamber 6, two braking surfaces of the brake disc 4 are in contact with two brake pads 5 respectively, and the pressing plate 7 is pacified
Loaded on the pressing plate fixture, and the pressing plate 7 compresses the upper surface of the brake pad 5 by stage clip.
The present embodiment is based on axial air-pressure disc brake, by air chamber installation direction by axially adjustable for radial direction, gas
Room is installed on the upper surface of the second chamber 8 of caliper body 2, and the push rod of air chamber acts on rotating shaft assembly 1 by air chamber mounting hole 9,
The thrust of air chamber vertical direction is converted into horizontal thrust by rotating shaft assembly 1, so as to promote brake pad 5 to compress brake disc 4.And this reality
Apply caliper body 2 in example to be formed in one structure, its stressing conditions is more preferable, it is to avoid the asking of split type clamp connecting bolt failure
Topic, reduces the number of parts assembled in split type clamp to each part, and then alleviates the weight of brake, and rigidity becomes
Shape is small, improves the intensity and rigidity of brake, while improving the sealing of brake, it is to avoid water enters in clamp with dust
Portion, the internal vital part of protection, improves brake life.
The embodiment of refinement, as shown in Fig. 5, Fig. 6, Fig. 9, the rotating shaft assembly 1 includes pressure arm 17, fulcrum cylinder
28th, reference seat 31, return spring 25, governor motion 18, active rotating shaft 19, screw rod 20, gear 21, bottom 22, pushing plate 24, from
Dynamic rotating shaft 26, fixing card 27；The fulcrum cylinder 28 is connected with pressure arm 17 by small needle roller pair 29, and the pressure arm 17 passes through
Big needle roller pair 30 is arranged in reference seat 31, and the return spring 25 is located between reference seat 31 and bottom 22, and the active turns
Axle 19 and driven spindle 26 are connected to the both sides of reference seat 31, pass through three gears between active rotating shaft 19 and driven spindle 26
21 engagement connections, the active rotating shaft 19 and driven spindle 26 are connected with two screw rods 20 respectively, and the end of screw rod 20 passes through bottom
Lid 22 is connected in pushing plate 24 by small back-up ring 23, and the pressure arm 17, which is provided with finger mounting hole, finger mounting hole, pacifies
Equipped with finger 32, finger 32 is connected with the opening on governor motion 18, and the pressure arm 17 is moved under the push rod effect of air chamber
During rotated by 32 drive governor motions 18 of pulling pin, the governor motion 18 is arranged on active rotating shaft 19, governor motion
It is interference fitted and is connected by torsion spring between 18 and active rotating shaft 19, when finger 32 is rotated, there is certain position in the horizontal direction
Move, the horizontal displacement of finger 32 can drive governor motion 18 to have certain rotation, and governor motion 18 is embraced by torsion spring actively to be turned
Axle 19 is rotated, and described one end of fixing card 27 is arranged on pressure arm 17, and the other end is fixed on bottom 22.
Wherein, as shown in fig. 7, the pressure arm 17 includes pressure arm load portion 34 and rotating part 38, the pressure arm is held
The one end of power portion 34 is provided with pressure arm ball-and-socket 33, and pressure arm ball-and-socket 33 and the air chamber mounting hole 9 are just right, the pressure arm load portion
34 other ends have the first fixed part 35 and the second fixed part 39, and the rotating part 38 includes inner cylinder face 37 and external cylindrical surface
36, the first fixed part 35 and the second fixed part 39 respectively with rotating part 38 parallel to the two side of the symmetry axis of rotating part 38 in the middle part of
It is fixedly connected, the center of inner cylinder face 37 and the center eccentric setting of external cylindrical surface 36, and the center of inner cylinder face 37 is relatively cylindrical
The center of cylinder 36 is close to pressure arm ball-and-socket 33；Between first fixed part 35 and the second fixed part 39 in the pressure arm load portion 34
Connected by arc-shaped transitional surface 40, and the inner cylinder face 37 of arc-shaped transitional surface 40 and rotating part 38 constitutes hollow cylinder.Gas
The push rod of room applies active force to pressure arm ball-and-socket 33, is acted on by pressure arm load portion 34 on rotating part 38, due to this hair
Bright middle pressure arm load portion 34 is connected by the first fixed part 35 and the second fixed part 39 with the middle part both sides of rotating part 38 respectively,
Thus the active force in pressure arm load portion 34 is dispersed in the both sides of rotating part 38, phase by the first fixed part 35 and the second fixed part 39
It is connected compared with existing pressure arm load portion with rotating part side for stress, the first fixed part 35 or the second fixed part 39 and rotation
The junction stress in portion 38 is greatly reduced, and is lost so as to reduce caused by stress deformation mechanical efficiency, ensured the brake compared with
The output of big braking moment.
As shown in figure 8, the fixing card 27 is included between two clamping plates 42 being oppositely arranged, two upper ends of clamping plate 42
The connecting plate 41 set by two relative spacings is connected, and the clearance space between two clamping plates 42 and two connecting plates 41 is constituted
The opening that the voltage supply arm of force 17 is passed through, pressure arm 17 is passed through from opening, and two connecting plates 41 are separately mounted to pressure arm 17
On the rotating part 38 of both sides, fulcrum cylinder 28, reference seat 31, return spring 25 are fastened between two clamping plates 42, described in two
The lower end of clamping plate 42 is equipped with grab 43, and the grab 43 is fixed on bottom 22, so that fixing card 27 is by pressure arm 17, branch null circle
Post 28, reference seat 31, return spring 25, governor motion 18, active rotating shaft 19, screw rod 20, gear 21, bottom 22, pushing plate 24,
Driven spindle 26 is connected as assembly unit.
The braking operation process of the brake is as follows：The push rod of air chamber promotes pressure arm 17 to be rotated around fulcrum cylinder 28, presses
The active force of air chamber vertical direction is converted into the thrust of horizontal direction by the arm of force 17, through too small needle roller pair 29 and big needle roller pair 30
Transmission, makes reference seat 31 drive active rotating shaft 19, driven spindle 26, pushing plate 24 to move together, while at reference seat 31 and bottom
Return spring 25 between lid 22 is compressed, and promotes brake pad 5 to compress brake disc 4, completes the effect of braking；When the push rod of air chamber
After withdrawal, in the presence of return spring 25, reference seat 31 is returned back to top, the homing of pressure arm 17.
The compensation course of work of the brake is as follows：When pressure arm 17 rotates, the finger 32 being connected with pressure arm 17 has
Moving forward and backward for certain angle, drives governor motion 18 to be rotated around active rotating shaft 19, because governor motion 18 automatically adjusts spy
Property, make active rotating shaft 19 can only single direction rotation, therefore rotating shaft assembly 1 have wearing clearance automatic compensation function；When brake pad 5 is deposited
In abrasion, when there is gap between pushing plate 24 and brake pad 5, compensation function will start, and finger 32 drives on pressure arm 17
Active rotating shaft 19 rotates, while active rotating shaft 19 is transmitted by the engagement of three gears 21, drives driven spindle 26 synchronous together
Rotation, two screw rods 20 being connected through a screw thread respectively between active rotating shaft 19, driven spindle 26 are fixed on by small back-up ring 23
In pushing plate 24, when active rotating shaft 19 rotates, screw rod 20 can not be rotated by the constraint limitation of pushing plate 24, so that active be turned
The convert rotational motion of axle 19 and driven spindle 26 is linear motion, realizes the function of compensation.
In addition, as shown in Figure 2, Figure 3 and Figure 4, the inside upper and lower surface of second chamber 8 is symmetrically each provided with two benchmark
Seat spigot surface 11, the processing of reference seat spigot surface 11 is stretched into inside second chamber 8 by dise knife from first chamber 6, to second chamber 8
Internal upper and lower surface is processed, specifically, the reference seat spigot surface 11 each two of the upper and lower surface inside the second chamber 8
It is individual, and the reference seat spigot surface 11 of its upper and lower surface is symmetrical arranged one by one, the Working position of four reference seat spigot surfaces 11 is with turning
Four set in the reference seat 31 of axle assembly 1, which are oriented to stationary plane, (to be used for the contact surface fixed with caliper body, belongs in reference seat
Prior art) position is corresponding, processes spacing using reamer head compared to traditional cambered surface in the inside both sides of second chamber 8
Face, the structure and the simpler stabilization of processing mode of this reference seat spigot surface 11 of the present embodiment, and effectively limit base
The beat of quasi- seat 31, realizes the straight-line guidance function to reference seat 31.And in order to ensure the second chamber in integrative-structure caliper body 2
The interior energy of room 8 is smoothly processed in the confined planes of the locating piece for fixed rotating shaft assembly 1, the front end side wall of the second chamber 8 and put down
Row is provided with two processing holes 12, and two processing holes 12 are and anti-by processing hole 12 with being communicated inside the second chamber 8
Boring is machined with two circular orientation faces 13, passes through two stationary positioned blocks of circular orientation face 13, it is ensured that locating piece is determined in horizontal
Position size.It is preferred that, the corner of first chamber 6 has the chamfering 10 of two superpositions, prevents the first chamber 6 of caliper body 2
Stress concentration and be broken between second chamber 8, improve the intensity of caliper body 2, and then improve the intensity of the brake.
In brake practical work process, brake pad 5 understands the radial component by the active force of brake disc 4, in order to avoid
Brake pad 5 is ejected, and is influenceed the stability of brake operation, is pushed down brake pad 5 by pressing plate 7 and pressing plate fixture.Such as Fig. 3,
Shown in Figure 10, Figure 11 and Figure 12, the pressing plate fixture includes afterbody boss 14, head channel 16 and fixed buckle 45, the tail
Portion's boss 14 and head channel 16 are arranged on the upper surface of first chamber 6 of caliper body 2, and the two ends of pressing plate 7 have first to connect respectively
Socket part 47 and second connecting portion 44, the first connecting portion 47 insert head channel 16, and the second connecting portion 44 is provided with opening
Groove 46, is not less than the width of afterbody boss 14 in the opening size of the open slot 46 along along the axis direction of pressing plate 7；The afterbody is convex
The inner side of platform 14 is provided with neck 15, and the open slot 46 is inserted in afterbody boss 14, and the side wall insertion neck 15 of open slot 46, institute
Fixed between stating on the outside of open slot 46 and afterbody boss 14 by fixed buckle 45.Specifically, the fixed buckle 45 includes W types
Deduction part 48, and the stop section 49 for being connected and stretching out with the both sides of W types deduction part 48, each side wall in W types deduction part 48
Abutted against respectively with the outside of afterbody boss 14 and the madial wall of open slot 46, the block of stop section 49 is on the pressing plate 7.Due to
The W types deduction part 48 of pressing plate 7 is resisted against on afterbody boss 14 and open slot 46, and the stop section 49 of pressing plate 7 is pressed on pressing plate 7,
Simultaneously when pressing plate 7 is by the upward thrust of brake pad 5, neck 15 produces down force to pressing plate 7, so passes through gear
The effect of stop 49 and neck 15 will limit pressing plate 7 on caliper body 2, while ensureing that fixed buckle 48 is difficult for drop-off, it is ensured that system
Dynamic device normal work；And the present invention this pressing plate fixed form overcome it is existing exist pin, latch slide in addition come off
The problem of；The cost of clamp clamping processing is reduced simultaneously.It is preferred that, connected in order that must fix between buckle 45 and pressing plate 7
More fasten, the both sides of W types deduction part 48 are symmetrically arranged with fixed projection 50, the fixed projection 50 uses elastomeric material system
, the space between pressing plate 7 and the two side of W types deduction part 48 is filled by the fixed projection 50 of elastic material, so that more effectively
The operating position that ensure that pressing plate 7, and fixed projection 50 can also slow down the continuity bounce of pressing plate 7 to fixed buckle 45
Impact, extends the service life of fixed buckle 45.
In summary, radially caliper body is designed as this floating tong type that the present invention is provided by double push rod air-pressure disc brakes
Integrated formed structure, reduces the number of parts assembled in existing split-type structural to each part, and then alleviate braking
The weight of device, while improving the intensity and rigidity of brake.
It is exemplified as above be only to the present invention for example, do not constitute the limitation to protection scope of the present invention, it is all
It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.
Claims (10)
1. a kind of double push rod air-pressure disc brakes of floating tong type radial direction, it is characterised in that：Including caliper body (2), rotating shaft assembly
(1), two brake pads (5), brake disc (4), pressing plate (7) and support (3)；
The caliper body (2) is formed in one structure, includes accommodating the first chamber (6) of brake disc (4) and receiving rotating shaft assembly
(1) second chamber (8), the first chamber (6) is connected with second chamber (8) on horizontal axis, the second chamber
(8) vertical is radially provided with air chamber mounting hole (9), and the vertical of the first chamber (6) is radially provided with pressing plate and fixed
Part；
The caliper body (2) constitutes floating tong type structure with support (3) by pilot pin, and the rotating shaft assembly (1) is installed on caliper body
(2) in second chamber (8), two brake pads (5) are arranged on support (3), and brake pad (5) is placed in first chamber
(6) in, two braking surfaces of the brake disc (4) are in contact with two brake pads (5) respectively, and the pressing plate (7) is installed
In on the pressing plate fixture, and the pressing plate (7) compresses the upper surface of the brake pad (5) by stage clip.
2. the double push rod air-pressure disc brakes of floating tong type radial direction as claimed in claim 1, it is characterised in that：The rotating shaft assembly
(1) pressure arm (17), fulcrum cylinder (28), reference seat (31), return spring (25), governor motion (18), active rotating shaft are included
(19), screw rod (20), gear (21), bottom (22), pushing plate (24), driven spindle (26), fixing card (27)；
The fulcrum cylinder (28) is connected with pressure arm (17) by small needle roller secondary (29), and the pressure arm (17) passes through big needle roller
Secondary (30) are arranged in reference seat (31), and the return spring (25) is located between reference seat (31) and bottom (22), the master
Dynamic rotating shaft (19) and driven spindle (26) are connected to reference seat (31) both sides, active rotating shaft (19) and driven spindle (26) it
Between connected by the engagement of three gears (21), the active rotating shaft (19) and driven spindle (26) respectively with two screw rods (20) companies
Connect, the end of screw rod (20) is connected in pushing plate (24) through bottom (22) by small back-up ring (23), the pressure arm (17)
By pulling pin, (32) drive governor motion (18) to rotate, and the governor motion (18) is arranged on active rotating shaft (19) and can be around master
Dynamic rotating shaft (19) rotation, described fixing card (27) one end is arranged on pressure arm (17), and the other end is fixed on bottom (22).
3. the double push rod air-pressure disc brakes of floating tong type radial direction as claimed in claim 2, it is characterised in that：The pressure arm
(17) pressure arm load portion (34) and rotating part (38) are included, described pressure arm load portion (34) one end is provided with pressure arm ball-and-socket
(33), pressure arm ball-and-socket (33) and the air chamber mounting hole (9) are just right, and pressure arm load portion (34) other end has first
Fixed part (35) and the second fixed part (39), the rotating part (38) include inner cylinder face (37) and external cylindrical surface (36), described
First fixed part (35) and the second fixed part (39) respectively with rotating part (38) parallel to the both sides of rotating part (38) symmetry axis
It is fixedly connected in the middle part of wall, inner cylinder face (37) center and external cylindrical surface (36) center eccentric setting, and inner cylinder face (37)
Center is with respect to external cylindrical surface (36) center close to pressure arm ball-and-socket (33).
4. the double push rod air-pressure disc brakes of floating tong type radial direction as claimed in claim 3, it is characterised in that：The pressure arm is held
Connected between first fixed part (35) and the second fixed part (39) in power portion (34) by arc-shaped transitional surface (40), and arc transition
Face (40) and the inner cylinder face (37) of rotating part (38) constitute hollow cylinder.
5. the double push rod air-pressure disc brakes of floating tong type radial direction as claimed in claim 2, it is characterised in that：The second chamber
(8) internal upper and lower surface is symmetrically each provided with putting down in two reference seat spigot surfaces (11), the front end side wall of the second chamber (8)
Row is provided with two processing hole (12), and two processing holes (12) pass through processing with being communicated inside the second chamber (8)
Hole (12) anti-boring is machined with two circular orientation faces (13).
6. the double push rod air-pressure disc brakes of floating tong type radial direction as claimed in claim 2, it is characterised in that：The fixing card
(27) include what is set between two clamping plates (42) being oppositely arranged, two clamping plate (42) upper ends by two relative spacings
Connecting plate (41) is connected, and two clamping plate (42) lower ends are equipped with grab (43), two connecting plates (41) respectively with pressure
The arm of force (17) both sides are fixed, and the grab (43) is fixed on bottom (22).
7. the double push rod air-pressure disc brakes of floating tong type radial direction as claimed in claim 1, it is characterised in that：The first chamber
(6) corner has the chamfering (10) of two superpositions.
8. the double push rod air-pressure disc brakes of floating tong type radial direction as claimed in claim 1, it is characterised in that：The pressing plate is fixed
Part includes afterbody boss (14), head channel (16) and fixed buckle (45), and the afterbody boss (14) and head channel (16) are set
First chamber (6) upper surface in caliper body (2), pressing plate (7) one end insertion head channel (16), the other end passes through fixing card
Button (45) is fixedly connected with afterbody boss (14).
9. the double push rod air-pressure disc brakes of floating tong type radial direction as claimed in claim 8, it is characterised in that：The pressing plate (7)
Two ends have first connecting portion (47) and second connecting portion (44) respectively, and the first connecting portion (47) inserts head channel (16),
The second connecting portion (44) is provided with open slot (46), in the opening of the open slot (46) along along pressing plate (7) axis direction
Size is not less than afterbody boss (14) width；Neck (15), open slot (46) set are provided with the inside of the afterbody boss (14)
Enter in afterbody boss (14), and open slot (46) side wall insertion neck (15), the open slot (46) and afterbody boss (14)
It is fixed by fixed buckle (45) between outside.
10. the double push rod air-pressure disc brakes of floating tong type radial direction as claimed in claim 8, it is characterised in that：The fixing card
Detaining (45) includes W types deduction part (48), and the stop section (49) for being connected and stretching out with W types deduction part (48) both sides, institute
Each side wall in W types deduction part (48) is stated respectively with being abutted against on the outside of afterbody boss (14) with open slot (46) madial wall, the block
Portion's (49) block is on the pressing plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372746.9A CN107120368B (en) | 2017-05-24 | 2017-05-24 | Floating caliper type radial double-push-rod air pressure disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372746.9A CN107120368B (en) | 2017-05-24 | 2017-05-24 | Floating caliper type radial double-push-rod air pressure disc brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107120368A true CN107120368A (en) | 2017-09-01 |
| CN107120368B CN107120368B (en) | 2023-03-24 |
Family
ID=59730023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710372746.9A Active CN107120368B (en) | 2017-05-24 | 2017-05-24 | Floating caliper type radial double-push-rod air pressure disc brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107120368B (en) |
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| CN108016288A (en) * | 2017-09-20 | 2018-05-11 | 北京理工大学 | Electric axle |
| CN108612789A (en) * | 2018-07-16 | 2018-10-02 | 浙江国昌机械有限公司 | The caliper of air-pressure disc brake |
| CN108626272A (en) * | 2018-07-16 | 2018-10-09 | 浙江国昌机械有限公司 | Air-pressure disc type brake clamps assembly |
| CN115574022A (en) * | 2022-12-07 | 2023-01-06 | 中国能源建设集团山西省电力勘测设计院有限公司 | Mechanical brake device of vertical axis wind generating set |
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| CN115574022A (en) * | 2022-12-07 | 2023-01-06 | 中国能源建设集团山西省电力勘测设计院有限公司 | Mechanical brake device of vertical axis wind generating set |
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Address after: 430058 No. 198, pioneering Road, Wuhan economic and Technological Development Zone, Hubei, China Applicant after: WUHAN YOUFIN AUTOPARTS Co.,Ltd. Address before: 430050 No. 299 Optics Valley Avenue, East Lake New Technology Development Zone, Wuhan, Hubei Applicant before: WUHAN YOUFIN AUTOPARTS Co.,Ltd. |
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