CN108909691B - Pedal input rod structure of automobile brake booster system - Google Patents
Pedal input rod structure of automobile brake booster system Download PDFInfo
- Publication number
- CN108909691B CN108909691B CN201810793663.1A CN201810793663A CN108909691B CN 108909691 B CN108909691 B CN 108909691B CN 201810793663 A CN201810793663 A CN 201810793663A CN 108909691 B CN108909691 B CN 108909691B
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- Prior art keywords
- input rod
- pedal input
- ball head
- head support
- support piece
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- 238000009434 installation Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/06—Disposition of pedal
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Mechanical Control Devices (AREA)
- Braking Elements And Transmission Devices (AREA)
Abstract
The invention relates to a pedal input rod structure of an automobile brake booster system, which comprises a pedal input rod and a ball seat, wherein one end of the pedal input rod is inserted into a first piston rod of a series brake master cylinder of the booster system, a straight hole with one open end is arranged in the first piston rod, the ball seat is arranged at the inner side end of the straight hole, a ball head support piece is axially arranged at one side of the ball seat, a wave spring is axially arranged at the other side of the ball head support piece, an anti-falling ring is clamped at the position, close to the opening, of the straight hole, a rectangular spring is axially arranged between the anti-falling ring and the wave spring, and a ball head at one end of the pedal input rod penetrates through the rectangular spring, the wave spring and the ball head support piece and is clamped between the ball seat and the ball head support piece. The invention has the special functions of simple structure, automatic centering, stable performance, small installation space and low noise, and is simpler and more convenient to install.
Description
Technical Field
The invention relates to the field of automobile brake booster systems, in particular to a pedal input rod structure of an automobile brake booster system.
Background
The pedal input rod is a part for connecting a brake pedal with the brake master cylinder, the brake pedal increases the manpower through the lever principle, and hydraulic pressure is generated through the action of the pedal input rod on the brake master cylinder so as to enable the vehicle to generate enough deceleration. Because the brake pedal is connected by a pin shaft, the free end of the brake pedal swings, the brake master cylinder is a precise processing part, and the piston moves linearly, the pedal input rod needs to be adjusted at a certain angle, and meanwhile, the piston needs to be pushed linearly, and the conventional pedal input rod is of a riveting structure of a ball head and a ball seat.
Meanwhile, since the brake master cylinder needs to release pressure to finish the braking process, the brake pedal needs to have a return mechanism to ensure the quick release of pressure of the brake master cylinder, and the brake pedal needs to have a certain preload to prevent the non-braking intended pressurization caused by the dead weight of the pedal and the bump on the road surface during the normal running of the automobile, therefore, when a driver releases the pedal quickly, the ball seat structure connected with the brake pedal may be damaged.
Disclosure of Invention
The invention aims to solve the technical problem of providing a pedal input rod structure of an automobile brake booster system, which has the special functions of simple structure, automatic centering, stable performance, small installation space and low noise, and is simpler and more convenient to install.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a pedal input rod structure of automobile brake helping hand system, including pedal input rod and ball seat, the one end of pedal input rod insert the first piston rod inside that is located the tandem type brake master cylinder of helping hand system, the inside of first piston rod arrange one end open-ended straight hole, the ball seat is installed to the inboard end in this straight hole, one side axial of ball seat install ball head support piece, the opposite side axial of ball head support piece install the wave spring, the straight hole be close to the position card of opening part and go into and install the anticreep ring, anticreep ring and wave spring between axial arrangement have rectangular spring, the bulb of pedal input rod one end pass rectangular spring, wave spring and ball head support piece clamp between ball seat and ball head support piece.
As a supplement to the technical scheme of the invention, a connecting boss is arranged at one side of the ball seat in the middle, an arc-shaped groove matched with the ball head is arranged at the other end of the ball seat, and the connecting boss enters a boss connecting hole on the end face of the straight hole.
Further, an annular gasket is arranged between the wave spring and the rectangular spring.
Further, the ball head support piece is cylindrical, two ends of the ball head support piece are open, the ball head support piece is matched with the inner wall of the straight hole, the back side of the ball head is a plane, the ball head support piece is clung to the inner wall of the opening at one end of the ball head support piece, and a wave spring is arranged in the opening at the other end of the ball head support piece.
Further, a flat part is arranged on the outer side wall of the other end of the pedal input rod.
Furthermore, a conical groove is arranged at the position of the straight hole close to the opening, and the anti-drop ring is embedded into the conical groove.
Furthermore, the anti-drop ring is in a conical annular shape with the outer side wall, and a plurality of equally dividing grooves are uniformly arranged on the end face of one end of the anti-drop ring around the circumference.
Further, a taper hole is arranged at the opening of the straight hole.
Further, the other end of the pedal input rod is connected with the pedal through a connecting rod.
Further, one end of the connecting rod is in threaded connection with one end of the pedal input rod and is provided with an outer hexagonal part, and the other end of the connecting rod is provided with a spherical connecting part connected with the pedal.
The beneficial effects are that: the invention relates to a pedal input rod structure of an automobile brake booster system, which adopts a ball seat with an automatic centering function, a ball head supporting piece can fix a ball head and a wave spring, and prevent internal parts from falling off through an anti-falling ring, and the pedal input rod structure has the special functions of simple structure, stable performance, small installation space and low noise, and is simpler and more convenient to install.
Drawings
FIG. 1 is a semi-sectional structural view of the present invention;
FIG. 2 is a schematic view of the use state structure of the present invention;
FIG. 3 is a block diagram of a first piston rod according to the present invention;
FIG. 4 is a block diagram of a tee according to the present invention;
FIG. 5 is a block diagram of a pedal input lever according to the present invention;
FIG. 6 is a partial structural perspective view of the present invention;
FIG. 7 is a perspective view of the anti-slip ring of the present invention;
FIG. 8 is a schematic view of the use of the ball head support of the present invention;
FIG. 9 is a schematic illustration of input lever runout of the present invention.
The diagram is: 1. a first piston rod; 2. a pedal input lever; 3. a connecting rod; 4. a return spring; 5. a wave spring; 6. an annular gasket; 7. anti-slip ring; 8. a ball seat; 9. a ball head support; 10. a rectangular spring; 11. boss connecting holes; 12. a straight hole; 13. a conical groove; 14. taper holes; 21. ball head; 22. a plane; 23. a flat portion; 31. an outer hexagonal portion; 32. a spherical surface connecting part; 71. and (5) dividing the groove equally.
Detailed Description
The invention will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents are intended to fall within the scope of the claims appended hereto.
As shown in fig. 1-9, the embodiment of the invention relates to a pedal input rod structure of an automobile brake booster system, which comprises a pedal input rod 2 and a ball seat 8, wherein one end of the pedal input rod 2 is inserted into a first piston rod 1 of a tandem brake master cylinder of the booster system, a straight hole 12 with one open end is arranged in the first piston rod 1, the ball seat 8 is arranged at the inner side end of the straight hole 12, a ball head support 9 is axially arranged at one side of the ball seat 8, a wave spring 5 is axially arranged at the other side of the ball head support 9, an anti-falling ring 7 is clamped at the position, close to the opening, of the straight hole 12, a rectangular spring 10 is axially arranged between the anti-falling ring 7 and the wave spring 5, and a ball head 21 at one end of the pedal input rod 2 passes through the rectangular spring 10, the wave spring 5 and the ball head support 9 to be clamped between the ball seat 8 and the ball head support 9.
One side of ball seat 8 arrange in the middle and connect boss 81, the other end has arranged the arc recess 82 that matches with bulb 21, connection boss 81 enter into boss connecting hole 11 on the straight hole 12 terminal surface, connect and be interference fit between boss 81 and the boss connecting hole 11, make ball seat 8 be difficult for droing, arc recess 82 has automatic centering function, cooperates with bulb 21, arc recess 82 can make footboard input rod 2 quick accurate positioning at the during operation.
The annular gasket 6 is arranged between the wave spring 5 and the rectangular spring 10, the wave spring 5, the annular gasket 6 and the rectangular spring 10 are combined to form a pre-tightening spring mechanism of the whole pedal input rod 2, and under certain conditions, such as the rapid rollback process of the pedal rod, the rigid connection between parts can be buffered, the damage between the ball head and the ball seat is reduced, and the functions of noise reduction and vibration reduction are realized. The annular gasket 6 is a support between two springs, and can increase the contact area of the two springs and ensure the stability between the spring connection.
The wave spring 5 is lighter and thinner, has small spring stiffness and a certain preload force, so that the abrasion of the rectangular spring 10 to the pedal input rod 2 and the ball head support 9 can be relieved to a certain extent, and the rebound reaction can be quickly performed at the moment of the disappearance of the acting force.
The characteristics of the rectangular spring 10 enable the performance to be stable, the load to be high, the service life to be long and the occupied space to be small.
The ball head support piece 9 is cylindrical, two ends of the ball head support piece are open, the ball head support piece is matched with the inner wall of the straight hole 12, the back side of the ball head 21 is a plane 22, the ball head support piece is tightly attached to the inner wall of one end opening of the ball head support piece 9, the wave spring 5 is arranged in the opening of the other end of the ball head support piece 9, and the matching part of the ball head 21 of the pedal input rod 2 and the ball head support piece 9 is the plane 22 and is easy to match and can play a certain centering role through the pre-tightening effect of the wave spring 5.
The other end outer side wall of the pedal input rod 2 is provided with a flat part 23.
A conical groove 13 is arranged at the position of the straight hole 12 close to the opening, and the anti-drop ring 7 is embedded into the conical groove 13.
The anti-drop ring 7 is in a conical annular shape, a plurality of equally-divided grooves 71 are uniformly arranged on one end face of the anti-drop ring 7 around the circumference, the equally-divided grooves are arranged in the cavity of the first piston rod 1, after the equally-divided grooves are assembled with the first piston rod 1, the taper shape is reversely buckled in the conical groove 13, and other parts in the anti-drop ring are prevented from falling off.
The opening of the straight hole 12 is provided with a taper hole 14.
The other end of the pedal input rod 2 is connected with the pedal through a connecting rod 3.
One end of the connecting rod 3 is in threaded connection with one end of the pedal input rod 2 and is provided with an outer hexagonal part 31, and the other end of the connecting rod 3 is provided with a spherical connecting part 32 connected with the pedal.
The main working principle is as follows: when a driver applies acting force to a pedal, the connecting rod 3 drives the pedal input rod 2 to move, a series of parts matched with the pedal input rod 2 also move along with the pedal input rod 2 to the direction of the first piston rod 1, so that the first piston 1 is pushed to move, and the return spring 4 is compressed; because the pedal is connected with the pin shaft, the pedal swings along the circumferential direction after receiving the pedal force of a driver, and the main cylinder piston part moves linearly, the pedal connecting rod needs to ensure 3-5 degrees of deflection in the use process, and in order to facilitate clamping and installation, the threaded connection part is provided with a flat part 23 and a threaded end connected with the connecting rod 3
The ball seat with the automatic centering function is adopted, the ball head supporting piece can fix the ball head and the wave spring, and the inner parts are prevented from falling off through the anti-falling ring, so that the ball seat has the special functions of simple structure, stable performance, small installation space and low noise, and is simpler and more convenient to install.
Claims (8)
1. The pedal input rod structure of the automobile brake booster system comprises a pedal input rod (2) and a ball seat (8), and is characterized in that one end of the pedal input rod (2) is inserted into a first piston rod (1) of a tandem brake master cylinder of the booster system, a straight hole (12) with one open end is arranged in the first piston rod (1), the ball seat (8) is arranged at the inner side end of the straight hole (12), a ball head support piece (9) is axially arranged at one side of the ball seat (8), a wave spring (5) is axially arranged at the other side of the ball head support piece (9), an anti-disengaging ring (7) is clamped at the position, close to the opening, of the straight hole (12), a rectangular spring (10) is axially arranged between the anti-disengaging ring (7) and the wave spring (5), a ball head (21) at one end of the pedal input rod (2) penetrates through the rectangular spring (10), the wave spring (5) and the ball head support piece (9) to be clamped between the ball seat (8) and the ball seat (9), a boss (81) is arranged at one side of the ball seat (8) and is connected with a boss (81) which is connected with a boss (81) arranged in the middle of the boss (81) and is connected with the boss (81) at the boss (81), the ball head support piece (9) is cylindrical, two ends of the ball head support piece are open, the ball head support piece is matched with the inner wall of the straight hole (12), the back side of the ball head (21) is a plane (22) and is clung to the inner wall of one end opening of the ball head support piece (9), and the wave spring (5) is arranged in the opening of the other end of the ball head support piece (9).
2. The pedal input rod structure of an automotive brake boosting system according to claim 1, characterized in that: an annular gasket (6) is arranged between the wave spring (5) and the rectangular spring (10).
3. The pedal input rod structure of an automotive brake boosting system according to claim 1, characterized in that: a flat part (23) is arranged on the outer side wall of the other end of the pedal input rod (2).
4. The pedal input rod structure of an automotive brake boosting system according to claim 1, characterized in that: a conical groove (13) is arranged at the position of the straight hole (12) close to the opening, and the anti-drop ring (7) is embedded into the conical groove (13).
5. The pedal input rod structure of an automotive brake boosting system according to claim 4, characterized in that: the anti-drop ring (7) is in a conical annular shape, and a plurality of equally dividing grooves (71) are uniformly arranged on one end face of the anti-drop ring (7) around the circumference.
6. The pedal input rod structure of an automotive brake boosting system according to claim 1, characterized in that: a taper hole (14) is arranged at the opening of the straight hole (12).
7. The pedal input rod structure of an automotive brake boosting system according to claim 1, characterized in that: the other end of the pedal input rod (2) is connected with the pedal through a connecting rod (3).
8. The pedal input rod structure of an automotive brake boosting system according to claim 7, characterized in that: one end of the connecting rod (3) is in threaded connection with one end of the pedal input rod (2) and is provided with an outer hexagonal part (31), and the other end of the connecting rod (3) is provided with a spherical connecting part (32) connected with the pedal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810793663.1A CN108909691B (en) | 2018-07-19 | 2018-07-19 | Pedal input rod structure of automobile brake booster system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810793663.1A CN108909691B (en) | 2018-07-19 | 2018-07-19 | Pedal input rod structure of automobile brake booster system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108909691A CN108909691A (en) | 2018-11-30 |
| CN108909691B true CN108909691B (en) | 2024-02-23 |
Family
ID=64414961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810793663.1A Active CN108909691B (en) | 2018-07-19 | 2018-07-19 | Pedal input rod structure of automobile brake booster system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108909691B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113060105B (en) * | 2020-01-02 | 2022-08-16 | 广州汽车集团股份有限公司 | Automobile brake pedal anti-invasion structure and automobile with same |
| CN111267797A (en) * | 2020-02-18 | 2020-06-12 | 万向钱潮股份有限公司 | Pedal input rod structure of automobile brake power-assisted system |
| CN113246928B (en) * | 2021-07-02 | 2022-09-27 | 中汽创智科技有限公司 | Brake input device and automobile brake system |
| CN114537338A (en) * | 2022-03-11 | 2022-05-27 | 北京英创汇智科技有限公司 | Automobile integrated electro-hydraulic brake system pedal connecting rod structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4505351A (en) * | 1980-11-04 | 1985-03-19 | Honda Giken Kogyo Kabushiki Kaisha | Automatic braking system for vehicles |
| DE10062988A1 (en) * | 2000-12-16 | 2002-07-11 | Zf Sachs Ag | Piston for master/slave cylinders for hydraulic actuator in IC engines has plastic piston with piston link head providing ball seat for articulated support of tappet ball |
| WO2002087943A2 (en) * | 2001-04-26 | 2002-11-07 | Robert Bosch Gmbh | Braking device with pedal free travel take-up, in particular for motor vehicle |
| FR2831503A1 (en) * | 2001-10-31 | 2003-05-02 | Renault | Car brake pedal control system comprises connecting rod attached to pedal which has hemispherical head fitting into conical recess in brake piston |
| CN102627103A (en) * | 2011-02-07 | 2012-08-08 | 日立汽车系统株式会社 | Booster |
| CN105090276A (en) * | 2015-09-09 | 2015-11-25 | 安徽江淮汽车股份有限公司 | Clutch master cylinder structure |
| CN205937570U (en) * | 2016-08-19 | 2017-02-08 | 浙江亚太机电股份有限公司 | Novel connection structure of clutch master cylinder piston and push rod |
| CN207120740U (en) * | 2017-06-28 | 2018-03-20 | 芜湖伯特利汽车安全系统股份有限公司 | A kind of master cylinder and its brakes |
| CN207274654U (en) * | 2017-08-01 | 2018-04-27 | 上海汽车集团股份有限公司 | Brake pedal force simulator with the stagnant structure of power |
| CN208774743U (en) * | 2018-07-19 | 2019-04-23 | 宁波拓普智能刹车系统有限公司 | A kind of pedal input rod structure of automobile brake force aid system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008107023A1 (en) * | 2007-03-05 | 2008-09-12 | Continental Teves Ag & Co. Ohg | Actuating unit for a motor vehicle brake system |
| JP2015009704A (en) * | 2013-06-28 | 2015-01-19 | 株式会社デンソー | Vehicular brake system |
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2018
- 2018-07-19 CN CN201810793663.1A patent/CN108909691B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4505351A (en) * | 1980-11-04 | 1985-03-19 | Honda Giken Kogyo Kabushiki Kaisha | Automatic braking system for vehicles |
| DE10062988A1 (en) * | 2000-12-16 | 2002-07-11 | Zf Sachs Ag | Piston for master/slave cylinders for hydraulic actuator in IC engines has plastic piston with piston link head providing ball seat for articulated support of tappet ball |
| WO2002087943A2 (en) * | 2001-04-26 | 2002-11-07 | Robert Bosch Gmbh | Braking device with pedal free travel take-up, in particular for motor vehicle |
| FR2831503A1 (en) * | 2001-10-31 | 2003-05-02 | Renault | Car brake pedal control system comprises connecting rod attached to pedal which has hemispherical head fitting into conical recess in brake piston |
| CN102627103A (en) * | 2011-02-07 | 2012-08-08 | 日立汽车系统株式会社 | Booster |
| CN105090276A (en) * | 2015-09-09 | 2015-11-25 | 安徽江淮汽车股份有限公司 | Clutch master cylinder structure |
| CN205937570U (en) * | 2016-08-19 | 2017-02-08 | 浙江亚太机电股份有限公司 | Novel connection structure of clutch master cylinder piston and push rod |
| CN207120740U (en) * | 2017-06-28 | 2018-03-20 | 芜湖伯特利汽车安全系统股份有限公司 | A kind of master cylinder and its brakes |
| CN207274654U (en) * | 2017-08-01 | 2018-04-27 | 上海汽车集团股份有限公司 | Brake pedal force simulator with the stagnant structure of power |
| CN208774743U (en) * | 2018-07-19 | 2019-04-23 | 宁波拓普智能刹车系统有限公司 | A kind of pedal input rod structure of automobile brake force aid system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108909691A (en) | 2018-11-30 |
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| CB02 | Change of applicant information |
Address after: 315800 building a, No. 268, Yuwangshan Road, Daqi street, Beilun District, Ningbo City, Zhejiang Province Applicant after: Ningbo Yuxiang Chassis by Wire Co.,Ltd. Address before: 315806 No.1 Longtanshan Road, Daqi, Beilun District, Ningbo City, Zhejiang Province Applicant before: NINGBO TUOPU INTELLIGENT BRAKE SYSTEM Co.,Ltd. |
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