CN110953273A - Vehicle braking system with automatic braking clearance compensation function - Google Patents
Vehicle braking system with automatic braking clearance compensation function Download PDFInfo
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- CN110953273A CN110953273A CN201911374512.3A CN201911374512A CN110953273A CN 110953273 A CN110953273 A CN 110953273A CN 201911374512 A CN201911374512 A CN 201911374512A CN 110953273 A CN110953273 A CN 110953273A
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- 238000000926 separation method Methods 0.000 claims abstract description 14
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 9
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 14
- 238000005299 abrasion Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
- F16D65/38—Slack adjusters
- F16D65/72—Slack adjusters hydraulic
- F16D65/74—Slack adjusters hydraulic self-acting in one direction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a vehicle braking system with automatic braking clearance compensation, and belongs to the technical field of machinery. The vehicle braking system comprises two brake discs fixedly connected with an automobile hub, a braking body fixed on the automobile frame and a compensating plate fixed on the braking body, wherein the compensating plate is positioned between the two brake discs, and a braking assembly is respectively arranged between the compensating plate and the two brake discs; the brake assembly comprises a brake piston, a compensation pressure plate, a compensation sliding cavity, a brake sliding cavity, a pressure control cavity and a separation spring, the brake piston is connected in the brake sliding cavity in a sliding mode, the compensation piston is connected in the compensation sliding cavity in a sliding mode, a friction plate capable of being abutted to the outer side face of a brake disc is fixedly arranged at the inner end of the brake piston, the compensation pressure plate extends to a position between the brake disc and the compensation plate through a connecting rod connected to the compensation piston, and hydraulic oil is filled in the compensation sliding cavity and the brake sliding. The invention has the advantages of realizing automatic adjustment of the brake clearance and the like.
Description
Technical Field
The invention belongs to the technical field of machinery, and relates to a vehicle braking system with automatic braking clearance compensation.
Background
The brake system is an important component of an automobile, the existing caliper type brake system adopts a mode that two brake calipers are synchronously close to a brake disc, the brake disc and friction plates on the brake calipers are abraded in the mutual contact process, the distance between the brake disc and the friction plates is gradually increased, the brake calipers are driven to act by hydraulic control force, under the condition of certain hydraulic control force, the brake force is reduced due to the increase of a brake clearance, the brake effect and the brake time are deviated from the initial set optimal value, and potential safety hazards are caused.
The brake fluid pressure can not change even though the brake clearance changes, so that the brake clearance of the automobile needs to be manually adjusted, and the friction plate also needs to be frequently replaced.
In order to ensure that the adhesive force between a wheel and the ground is at the maximum value, the conventional braking system adopts a 'inching' mode to automatically control the braking force of a brake, so that the wheel is not locked and is in a rolling and sliding state, namely, the anti-lock braking system is a complex hydraulic control system, needs a plurality of hydraulic control pipelines to enable a brake caliper to intermittently contact with a brake disc, is very complex in structure, and is difficult to achieve the optimal anti-lock effect under the condition that the braking clearance cannot be automatically adjusted.
Disclosure of Invention
The invention aims to provide a vehicle brake system with automatic brake clearance compensation, aiming at the problems in the prior art, and the technical problem to be solved by the invention is how to realize the brake clearance compensation.
The purpose of the invention can be realized by the following technical scheme: a vehicle braking system with automatic braking clearance compensation is characterized by comprising two braking discs fixedly connected with an automobile hub, a braking body fixed on an automobile frame and a compensating plate fixed on the braking body, wherein the compensating plate is positioned between the two braking discs, and a braking assembly is respectively arranged between the compensating plate and the two braking discs; the brake assembly comprises a brake piston, a compensation pressure plate, a compensation sliding cavity, a brake sliding cavity, a pressure control cavity and a separation spring, the brake piston is connected in the brake sliding cavity in a sliding manner, the compensation piston is connected in the compensation sliding cavity in a sliding manner, the inner end of the brake piston is fixedly provided with a friction plate capable of abutting against the outer side surface of a brake disc, the compensation pressure plate extends between the brake disc and the compensation plate through a connecting rod connected on the compensation piston, hydraulic oil is filled in the compensation sliding cavity and the brake sliding cavity, the compensation sliding cavity and the brake sliding cavity are communicated through an intercommunicating hole, the separation spring abuts against the bottom of the compensation sliding cavity and the outer end of the compensation piston, the separation spring can drive the compensation pressure plate to be far away from the brake disc, and the compensation pressure plate is provided with, a compensation column is connected in the positioning hole in a sliding manner, and the inner end of the compensation column is abutted against the compensation sheet; the circumferential surface of the compensation column is provided with a plurality of inverted tooth-shaped one-way convex ribs at equal intervals, the inner wall of the positioning hole is fixedly provided with a limiting baffle piece which can be inserted into a gap between every two adjacent one-way convex ribs, and the pressure control cavity is connected with an air source or a hydraulic source.
A closed hydraulic circulation cavity is formed among the brake sliding cavity, the compensation sliding cavity and the intercommunicating hole, and the brake piston and the compensation piston can move in opposite directions.
In the prior art, generally, a structure that a spring is directly arranged at a brake piston is adopted, so that a pressure source overcomes the pretightening force of the spring to drive the brake piston to move, and after the pressure source disappears, the restoring force of the spring drives the brake piston to reset, and the direct action mode can shorten the brake reaction time to a certain extent, but the abrasion between abrasion pairs is very serious, so that the high temperature caused by the abrasion can have negative influence on the brake effect. In the braking process, the larger the braking force is, the better the braking effect is, but the maximum adhesive force between the wheels and the ground is ensured, and the slow increase of the braking force is beneficial to the braking effect. Moreover, the buffer effect and the protection effect to the braking piece are better in this scheme.
The one-way convex rib on the compensation column enables the limiting blocking sheet to move mutually in one direction only towards the relative compensation column, namely the compensation column can only be far away from the brake disc.
Measurement of the total amount of wear of the friction pads and the brake disc in a single brake assembly: after wearing, the clearance between the brake disc and the friction plate is increased, in the braking process, as the braking piston is close to the outer side surface of the brake disc from the outer side, the compensation pressure plate is close to the inner side surface of the brake disc from the inner side to the outer side, the difference of the wearing clearance is reacted on the compensation pressure plate, so that the compensation pressure plate presses the inner side surface of the brake disc, the compensation column is pressed to move towards the direction of the compensation plate, after the compensation column moves, the clearance between the compensation pressure plate and the compensation plate is increased, further, the initial position of the compensation piston is relatively retracted, the compensation sliding cavity is communicated with the braking sliding cavity, the braking piston is pushed along with the retraction of the compensation piston under the condition of maintaining pressure balance, even if the clearance between the friction plate at the inner.
Because the liquid is incompressible or the compressed space is small, the retraction of the compensation piston in the process of compensating the clearance is not limited enough by the separation spring, and the minimum pressure at which the pressure control cavity can drive the brake piston to be close to the brake disc is almost unchanged, so that the brake system can still maintain a relatively stable braking initial state after being used for a period of time, and a relatively ideal braking effect is kept between the friction plate and the brake disc under the condition that a braking force input source is constant.
The brake disc has two, and realize the compensation of braking and braking clearance respectively, can improve braking effect, because the braking that causes through the mode of indirect reaction brake power postpones can prolong braking reaction time, setting through two brake discs can compensate this problem to a certain extent, and gapped between two brake discs, do benefit to the heat dissipation, compensating plate and brake piston set up respectively in the brake disc both sides, compress tightly the both sides face of brake disc respectively in braking process, do benefit to braking effect, ensure that the brake disc is steady, and can prevent brake disc deformation to a certain extent, wearing and tearing are irregular etc.
In the vehicle braking system with the automatic braking clearance compensation function, two ends of the compensation column are respectively provided with a rolling cavity, and a spherical contact head is connected in the rolling cavity in a rolling manner.
The contact head can change the contact between the compensation column and the brake disc from slideway friction to rolling friction, so that the abrasion of the compensation column is avoided, and the adjustment of the friction clearance is more accurate.
In the above vehicle braking system with automatic braking clearance compensation, the braking piston is provided with a guide hole and a slide hole, the guide hole penetrates through the outer end surface and the slide hole of the braking piston, the diameter of the slide hole is larger than that of the guide hole, a top post is connected in the guide hole in a sliding manner, an outer sliding sleeve is connected in the slide hole in a sliding manner through a spline, an inner sliding sleeve is connected in the outer sliding sleeve in a sliding manner, a clockwork spring is connected between the inner wall of the outer sliding sleeve and the outer wall of the inner sliding sleeve, the inner sliding sleeve is connected with the top post in a threaded manner, a compression spring is connected between the outer sliding sleeve and the bottom of the slide hole, an installation frame is fixedly arranged on the end surface of the inner end of the top post, a plurality of limiting holes are arranged on the installation frame, balls limited on the installation frame are connected in a rolling manner in, the outer end of the top column is positioned in the pressure control cavity; the pressure control cavity is internally provided with a limiting sleeve, the ejection column is provided with a check ring positioned between the limiting sleeve and the brake piston, and a return spring is connected between the check ring and the brake piston.
The pressure source acts on the pressure control cavity, the ejection column is preferentially driven, the ejection column is additionally rotated in the moving process, the inner sliding sleeve and the outer sliding sleeve are ejected to the bottom of the sliding hole together, so far, the ejection column and the brake piston can be synchronously driven by the pressure source to move, due to the existence of the compression spring, the inner sliding sleeve and the outer sliding sleeve are driven to be far away from the bottom of the sliding hole, in the process, the top column is acted by the pressure source and does not move, but rotates relative to the inner sliding sleeve, and in the rotating process, because the same ball continuously switches the positioning notch matched with the ball, the brake piston is in a shaking state, therefore, high-frequency change of braking force is achieved, the brake disc is prevented from being locked, the clockwork spring is accumulated in the process, the release of the accumulated force of the clockwork spring is matched with the deformation frequency of the compression spring, and the ejection column can rotate for multiple periods in positive and negative directions until the compression spring and the clockwork spring are restored. The existence of a return spring can drive the jacking column to reset.
The stop collar is similar to the bearing bracket of a plane bearing, and the steel ball is limited between the stop collar and the end surface of the support pillar, can roll, and can cross the positioning notch and switch to another positioning notch.
Drawings
Fig. 1 is a schematic structural view of the present brake system.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is an enlarged view of a portion B in fig. 1.
Fig. 4 is a schematic perspective view of the position-limiting sleeve.
Figure 5 is a schematic structural view of the inner sliding sleeve and the outer sliding sleeve.
In the figure, 1, a brake disc; 11. a compensation plate; 2. a braking body; 21. a brake piston; 22. a compensation piston; 23. a compensating pressure plate; 24. a compensating slide cavity; 25. a brake shoe; 26. a pressure control chamber; 27. a separation spring; 28. a friction plate; 29. an inter-via; 31. a compensation column; 32. a unidirectional convex rib; 33. a limiting baffle plate; 34. a contact head; 41. a guide hole; 42. a slide hole; 43. a top pillar; 44. an outer sliding sleeve; 45. an inner sliding sleeve; 46. a clockwork spring; 47. a compression spring; 51. a mounting frame; 52. a ball bearing; 53. a positioning notch; 61. a limiting sleeve; 62. a retainer ring; 63. a return spring.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, the vehicle braking system includes two brake discs 1 fixedly connected to an automobile hub, a braking body 2 fixed to a frame, and a compensation plate 11 fixed to the braking body 2, wherein the compensation plate 11 is located between the two brake discs 1, and a braking assembly is respectively arranged between the compensation plate 11 and the two brake discs 1; the brake assembly comprises a brake piston 21, a compensation piston 22, a compensation pressure plate 23, a compensation sliding cavity 24, a brake sliding cavity 25, a pressure control cavity 26 and a separation spring 27, wherein the brake piston 21 is connected in the brake sliding cavity 25 in a sliding manner, the compensation piston 22 is connected in the compensation sliding cavity 24 in a sliding manner, a friction plate 28 capable of abutting against the outer side surface of the brake disc 1 is fixedly arranged at the inner end of the brake piston 21, the compensation pressure plate 23 extends between the brake disc 1 and the compensation plate 11 through a connecting rod connected on the compensation piston 22, the compensation sliding cavity 24 and the brake sliding cavity 25 are filled with hydraulic oil, the compensation sliding cavity 24 is communicated with the brake sliding cavity 25 through a mutual through hole 29, the separation spring 27 abuts between the bottom of the compensation sliding cavity 24 and the outer end of the compensation piston 22, the separation spring 27 can drive the compensation pressure plate 23 to be far away from the brake disc 1, a positioning hole, a compensation column 31 is connected in the positioning hole in a sliding manner, and the inner end of the compensation column 31 is abutted against the compensation sheet 11; the circumferential surface of the compensation column 31 is provided with a plurality of inverted tooth-shaped one-way convex ribs 32 at equal intervals, the inner wall of the positioning hole is fixedly provided with a limiting baffle 33 which can be inserted into a gap between the adjacent one-way convex ribs 32, and the pressure control cavity 26 is connected with an air source or a hydraulic source.
The brake slide chamber 25, the compensation slide chamber 24 and the communication hole 29 form a closed hydraulic circulation chamber therebetween, which enables the brake piston 21 and the compensation piston 22 to move in opposite directions.
In the prior art, a structure that a spring is directly arranged at a brake piston 21 is generally adopted, a pressure source overcomes the pretightening force of the spring to drive the brake piston 21 to move, after the pressure source disappears, the restoring force of the spring drives the brake piston 21 to reset, although the direct action mode can shorten the brake reaction time to a certain extent, the abrasion between abrasion pairs is very serious, the high temperature caused by the abrasion is high, and the brake effect is negatively influenced, in the scheme, a mode that a forerunner pressurizes a brake sliding cavity 25 is adopted to form negative pressure in a compensation sliding cavity 24, the negative pressure forces the compensation piston 22 to compress a separation spring 27, the pressure required by the brake piston 21 to be close to a brake disc 1 is changed from small to large and then small, and the mode causes the brake force to be changed from small to large under the condition that the input pressure is constant, but not to be directly acted on the brake disc 1 by the maximum brake force, it is known that, in the braking process, the larger the braking force is, the better the braking effect is, but the maximum adhesion force between the wheel and the ground is ensured, and the slow increase of the braking force is beneficial to the braking effect. Moreover, the buffer effect and the protection effect to the braking piece are better in this scheme.
The unidirectional bead 32 on the compensation column 31 enables the limiting flaps 33 to move relative to the compensation column 31 in one direction only, i.e. the compensation column 31 can only move away from the brake disc 1.
Measurement of the total wear of the friction pads 28 and the disc 1 in a single braking assembly: after abrasion, the clearance between the brake disc 1 and the friction plate 28 increases, and during braking, when the brake piston 21 approaches the outer side surface of the brake disc 1 from the outer side, the compensating pressure plate 23 approaches the inner side surface of the brake disc 1 from the inner side to the outer side, the difference of the abrasion clearance is reacted on the compensating pressure plate 23, so that the compensating pressure plate 23 presses the inner side surface of the brake disc 1, the compensating column 31 is pressed to move towards the compensating plate 11, after the compensating column 31 moves, the clearance between the compensating pressure plate 23 and the compensating plate 11 increases, further the initial position of the compensating piston 22 relatively retracts, the compensating slide cavity 24 and the brake slide cavity 25 are communicated, the brake piston 21 is pushed along with the retraction of the compensating piston 22 under the condition of maintaining pressure balance, even if the clearance between the friction plate 28 at the inner end of the brake piston 21 and the outer side surface of the brake disc.
Due to the incompressible fluid or the small compressed space, the separation spring 27 is not enough to limit the retraction of the compensation piston 22 during the compensation of the clearance, and the minimum pressure at the pressure control chamber 26 that can drive the brake piston 21 close to the brake disc 1 is almost unchanged, so that the brake system can still maintain a relatively stable initial braking state after a period of use, and a relatively ideal braking effect between the friction plate 28 and the brake disc 1 can be ensured under the condition that the input source of the braking force is constant.
As shown in fig. 1, 3, 4 and 5, the compensation column 31 has a rolling cavity at each end, and a spherical contact 34 is connected in the rolling cavity in a rolling manner.
The presence of the contact head 34 enables the contact between the compensation column 31 and the brake disc 1 to be changed from sliding friction to rolling friction, avoiding wear of the compensation column 31, so as to make the adjustment of the friction clearance more accurate.
A guide hole 41 and a slide hole 42 are formed in the brake piston 21, the guide hole 41 penetrates through the outer end face and the slide hole 42 of the brake piston 21, the diameter of the slide hole 42 is larger than that of the guide hole 41, a support pillar 43 is connected in the guide hole 41 in a sliding mode, an outer sliding sleeve 44 is connected in the slide hole 42 in a sliding mode through a spline, an inner sliding sleeve 45 is connected in the outer sliding sleeve 44 in a sliding mode, a spiral spring 46 is connected between the inner wall of the outer sliding sleeve 44 and the outer wall of the inner sliding sleeve 45, the inner sliding sleeve 45 is connected with the support pillar 43 in a threaded mode, a compression spring 47 is connected between the outer sliding sleeve 44 and the bottom of the slide hole 42, an installation frame 51 is fixedly arranged on the end face of the inner end of the support pillar 43, a plurality of limiting holes are formed in the installation frame 51, the balls 52 limited on the installation frame 51 in a rolling mode are connected in the limiting; a limiting sleeve 61 is arranged in the pressure control cavity 26, a check ring 62 positioned between the limiting sleeve 61 and the brake piston 21 is arranged on the top column 43, and a return spring 63 is connected between the check ring 62 and the brake piston 21.
The pressure source acts on the pressure control chamber 26, the top pillar 43 is preferentially driven, the top pillar 43 carries out rotary motion during the moving process, the inner sliding sleeve 45 and the outer sliding sleeve 44 are pushed to the bottom of the sliding hole 42 together, so that the top pillar 43 and the brake piston 21 can be synchronously driven by the pressure source to move, due to the existence of the compression spring 47, the inner sliding sleeve 45 and the outer sliding sleeve 44 are driven to be away from the bottom of the sliding hole 42, in the process, the top pillar 43 is not moved due to the action of the pressure source and rotates relative to the inner sliding sleeve 45, in the rotating process, the top pillar 43 is in a shaking state due to the fact that the same ball 52 continuously switches the positioning notch 53 matched with the same ball, so that high-frequency change of braking force of the spring is realized, the brake disc 1 is prevented from being locked, the spring 46 is stored during the process, the stored force of the spring 46 is released to match with the frequency of deformation of the compression spring 47, and the top pillar 43 can, until both the hold down spring 47 and the balance spring 46 are restored. The presence of the return spring 63 can urge the top post 43 to return.
The position-restricting bush 61 is similar to a bearing bracket of a flat bearing, and a steel ball is held between the position-restricting bush 61 and the end surface of the knock pin 43, and the steel ball can roll and can pass over the positioning recess 53 to be switched to another positioning recess 53.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (3)
1. A vehicle braking system with automatic braking clearance compensation is characterized by comprising two braking discs (1) fixedly connected with an automobile hub, a braking body (2) fixed on an automobile frame and a compensating plate (11) fixed on the braking body (2), wherein the compensating plate (11) is positioned between the two braking discs (1), and a braking assembly is respectively arranged between the compensating plate (11) and the two braking discs (1); the brake assembly comprises a brake piston (21), a compensation piston (22), a compensation pressure plate (23), a compensation sliding cavity (24), a brake sliding cavity (25), a pressure control cavity (26) and a separation spring (27), wherein the brake piston (21) is connected in the brake sliding cavity (25) in a sliding manner, the compensation piston (22) is connected in the compensation sliding cavity (24) in a sliding manner, a friction plate (28) capable of abutting against the outer side surface of a brake disc (1) is fixedly arranged at the inner end of the brake piston (21), the compensation pressure plate (23) extends to a position between the brake disc (1) and a compensation plate (11) through a connecting rod connected to the compensation piston (22), hydraulic oil is filled in the compensation sliding cavity (24) and the brake sliding cavity (25), the compensation sliding cavity (24) and the brake sliding cavity (25) are communicated through a mutual through hole (29), and the separation spring (27) abuts against a position between the bottom of the compensation sliding cavity (24) and the outer end of the compensation piston (22), the separation spring (27) can drive the compensation pressure plate (23) to be far away from the brake disc (1), a positioning hole is formed in the compensation pressure plate (23) in the direction perpendicular to the side face of the brake disc (1), a compensation column (31) is connected in the positioning hole in a sliding mode, and the inner end of the compensation column (31) is abutted to the compensation plate (11); the circumferential surface of the compensation column (31) is provided with a plurality of inverted tooth-shaped one-way convex ribs (32) at equal intervals, the inner wall of the positioning hole is fixedly provided with a limiting baffle plate (33) which can be inserted into a gap between every two adjacent one-way convex ribs (32), and the pressure control cavity (26) is connected with an air source or a hydraulic source.
2. A vehicle brake system with automatic brake clearance compensation according to claim 1, wherein the compensation column (31) has a rolling cavity at each end, and a spherical contact head (34) is connected in a rolling way in the rolling cavity.
3. The vehicle brake system with the automatic brake clearance compensation function according to claim 1 or 2, wherein a guide hole (41) and a slide hole (42) are formed in the brake piston (21), the guide hole (41) penetrates through the outer end face of the brake piston (21) and the slide hole (42), the diameter of the slide hole (42) is larger than that of the guide hole (41), a support pillar (43) is connected in the guide hole (41) in a sliding manner, an outer slide sleeve (44) is connected in the slide hole (42) in a sliding manner through a spline, an inner slide sleeve (45) is connected in the outer slide sleeve (44) in a sliding manner, a spring (46) is connected between the inner wall of the outer slide sleeve (44) and the outer wall of the inner slide sleeve (45), the inner slide sleeve (45) is connected with the support pillar (43) in a threaded manner, and a compression spring (47) is connected between the outer slide sleeve (44) and the bottom of the slide hole (42, an installation frame (51) is fixedly arranged on the end face of the inner end of the top column (43), a plurality of limiting holes are formed in the installation frame (51), balls (52) limited on the installation frame (51) are connected in the limiting holes in a rolling mode, positioning notches (53) corresponding to the balls (52) one by one are formed in the bottom of the sliding hole (42), and the outer end of the top column (43) is located in the pressure control cavity (26); a limiting sleeve (61) is arranged in the pressure control cavity (26), a check ring (62) positioned between the limiting sleeve (61) and the brake piston (21) is arranged on the ejection column (43), and a return spring (63) is connected between the check ring (62) and the brake piston (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911374512.3A CN110953273B (en) | 2019-12-27 | 2019-12-27 | Vehicle braking system with automatic braking clearance compensation function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911374512.3A CN110953273B (en) | 2019-12-27 | 2019-12-27 | Vehicle braking system with automatic braking clearance compensation function |
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| CN110953273A true CN110953273A (en) | 2020-04-03 |
| CN110953273B CN110953273B (en) | 2024-05-14 |
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| CN201911374512.3A Active CN110953273B (en) | 2019-12-27 | 2019-12-27 | Vehicle braking system with automatic braking clearance compensation function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594302A (en) * | 2021-01-18 | 2021-04-02 | 上海麦斌汽车用品有限公司 | Brake auxiliary device capable of always keeping maximum brake effect |
| CN113719566A (en) * | 2021-11-01 | 2021-11-30 | 杭州斯格尔液压机械有限公司 | Disc type braking device suitable for new energy automobile |
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| CN211314928U (en) * | 2019-12-27 | 2020-08-21 | 湖北科技学院 | Vehicle braking system with automatic braking clearance compensation function |
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2019
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| US5325949A (en) * | 1991-07-25 | 1994-07-05 | Ti Interlock Limited | Brake or clutch unit wear adjustment means |
| KR20020052314A (en) * | 2000-12-26 | 2002-07-04 | 이계안 | Disk brake of vehicle |
| WO2007057464A1 (en) * | 2005-11-21 | 2007-05-24 | Siemens Aktiengesellschaft | Electromechanical vehicle brake comprising a friction lining wear compensating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112594302A (en) * | 2021-01-18 | 2021-04-02 | 上海麦斌汽车用品有限公司 | Brake auxiliary device capable of always keeping maximum brake effect |
| CN113719566A (en) * | 2021-11-01 | 2021-11-30 | 杭州斯格尔液压机械有限公司 | Disc type braking device suitable for new energy automobile |
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| CN110953273B (en) | 2024-05-14 |
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