CN201779187U - Brake shoe assembly with parking lever mechanism - Google Patents
Brake shoe assembly with parking lever mechanism Download PDFInfo
- Publication number
- CN201779187U CN201779187U CN 201020214566 CN201020214566U CN201779187U CN 201779187 U CN201779187 U CN 201779187U CN 201020214566 CN201020214566 CN 201020214566 CN 201020214566 U CN201020214566 U CN 201020214566U CN 201779187 U CN201779187 U CN 201779187U
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- China
- Prior art keywords
- brake
- lever
- brake lever
- braking
- mutton
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- Expired - Fee Related
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Abstract
The utility model relates to a brake shoe assembly with a parking lever mechanism, comprising a friction plate, a shoe plate, a tendon, a braking lever and a braking stay rope, wherein the braking lever is connected with the tendon through a shaft pin and is limited by a shaft pin clamp, and a waveform elastic washer is arranged between the barking lever and the shaft pin clamp. The utility model has the advantages that the double functions of driving braking and parking braking are achieved, the braking lever has the characteristics of flexible rotation, no clamping stagnation, locking and unsmooth resetting, and overcomes the defect that the braking stay rope is disengaged from a hook of the braking lever in the processes of transportation and assembly.
Description
Technical field
The utility model relates to a kind of brake system of car, especially a kind of brake shoe assembly with the Parking leverage.
Background technique
Leverage generally adopts riveting technology to be connected with the tendons of beef, mutton or pork in traditional brake shoe assembly, and not only manufacture difficulty is big, and riveted joint back lever can be too tight or too loose, influences Parking usefulness and normal return, and is prone to phenomenon such as clamping stagnation locking.。
Summary of the invention
The utility model will solve the shortcoming of above-mentioned prior art, provides a kind of simple and reasonable, is not prone to the not brake shoe assembly of the band Parking leverage of smooth phenomenon of clamping stagnation locking, return.
The utility model solves the technological scheme that its technical problem adopts: the brake shoe assembly of this band Parking leverage, comprise friction plate, shoe plate, the tendons of beef, mutton or pork, brake lever and brake cable, brake lever is connected with the tendons of beef, mutton or pork by pivot pin, and spacing by the pivot pin card, be provided with wave spring washer between brake lever and the pivot pin card.
As preferably, brake lever is provided with the rotation guide ledges that cooperates with tendons of beef, mutton or pork surface of contact.
As preferably, brake lever is provided with the lever stop bit mechanism that cooperates with the tendons of beef, mutton or pork.
As preferably, the brake lever end is provided with the fixedly brake lever crotch of brake cable, is provided with the brake cable anti-shedding mechanism spacing to brake cable on the brake lever in addition.
As preferably, the lower surface edge that described brake lever contacts with the tendons of beef, mutton or pork is provided with the smooth circular arc of transition of anti-clamping stagnation locking.
The effect that the utility model is useful is: not only possess service brake and parking braking dual functions, and has the brake lever rotation flexibly, the not characteristics of smooth phenomenon of clamping stagnation locking, return do not occur, and overcome the drawback that brake cable is escaped in transportation and the assembly process from the brake lever crotch.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 be among Fig. 1 A-A to partial sectional view;
Fig. 3 be among Fig. 1 B-B to partial sectional view;
Fig. 4 be among Fig. 1 C-C to partial sectional view;
Fig. 5 be among Fig. 1 D-D to partial sectional view;
Fig. 6 be among Fig. 1 K to the partial structurtes schematic representation;
Description of reference numerals: friction plate 1, shoe plate 2, the tendons of beef, mutton or pork 3, brake lever 4 rotates guide ledges 4-1, the lever stop bit 4-2 of mechanism, brake cable anti-shedding mechanism 4-3, the smooth circular arc 4-4 of transition, brake lever crotch 4-5, pivot pin 5, wave spring washer 6, pivot pin card 7, brake cable 8, return spring 9.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Embodiment: as Fig. 1,2, the brake shoe assembly of this band Parking leverage, pivot pin 5 is connected brake lever 4 with the tendons of beef, mutton or pork 2, and put into wave spring washer 6, the pivot pin card 7 of packing into, and with the clamping of pivot pin card 7 oral areas, elasticity wave washer 6 is used to eliminate the gap between cooperation, guarantees that brake lever 4 up-down vibration can not occur.
As Fig. 3, brake lever 4 is provided with the rotation guide ledges 4-1 of the smooth, spherical of high about 1mm.Braking regulations and parameters 4 during return, after rotating the guide ledges 4-1 contact tendons of beef, mutton or pork 3, at first slips into the tendons of beef, mutton or pork 3 upper surfaces under return spring 9 pulling force, brake lever 4 is lifted slightly, avoids brake lever 4 to be blocked by the tendons of beef, mutton or pork 3 circular arc positions, can not return, cause the clamping stagnation locking.
As Fig. 4, brake lever 4 is provided with the lever stop bit 4-2 of mechanism that cooperates with the tendons of beef, mutton or pork 3.When lever was repositioned to correct position, the 4-2 of lever stop bit mechanism was blocked in the tendons of beef, mutton or pork 3 outsides with brake lever 4 thus.Not only can make brake lever 4 keep the return position, and can make return spring 9 be in the predetermined pressure state.The lever stop bit 4-2 of mechanism is set herein, mainly is to solve in the prior art, the lever return produces the abnormal sound problem.
As Fig. 5,6, the brake lever end is provided with the fixedly brake lever crotch 4-5 of brake cable 8, is provided with the brake cable anti-shedding mechanism 4-3 spacing to brake cable 8 on the brake lever 4 in addition.Brake cable 8 main bodys are steel wire, easily escape in brake lever crotch 4-5.And common rear brake is when being installed on the rear axle, brake lever crotch 4-5 is not in level, cannot say for sure that more demonstrate,proving drag-line does not escape from, added this brake cable anti-shedding mechanism 4-3, can reduce assembling difficulty on the car load assembly line, earlier brake cable is positioned in the braking regulations and parameters crotch 4-5, brake activation lever is installed again, because brake cable anti-shedding mechanism 4-3's is spacing, can brake cable 8 not occur in this process escapes, prevent that the drag-line in the supply of material process from coming off, be convenient to the integrated supply of material of assembly and assembling transportation.
As Fig. 2, the lower surface edge that brake lever 4 contacts with the tendons of beef, mutton or pork 3 is provided with the smooth circular arc 4-4 of transition of anti-clamping stagnation locking, guarantees that the brake rod return is smooth and easy, can not cause the parking braking locking by clamping stagnation at the tendons of beef, mutton or pork 3 circular arc positions.
This brake shoe assembly upper end P contact with wheelcylinder piston, and lower end Q contacts with catch on being fixed in back device base plate, and the W place contacts with back device push rod.In the driving braking process, the P end is promoted by wheelcylinder piston, and friction plate 1 outer surface is pressed against the brake drum internal surface, produces braking force; During brake off, brake shoe is return under the effect of draught spring up and down.During parking braking, by parking brake lever in the pulling operator cabin, through a series of levers and brake cable 8 transmissions, pulling brake lever 4 rotates around the center line of pivot pin 5.Because the Q end is tied and is tied in push rod in catch, W place, then in brake lever 4 rotation processes, promote brake shoe and press against on the brake drum, impose parking braking.At this moment, return spring 9 tensions, when removing parking braking, return spring 9 pull lever, brake shoe return.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (5)
1. brake shoe assembly with the Parking leverage, comprise friction plate (1), shoe plate (2), the tendons of beef, mutton or pork (3), brake lever (4) and brake cable (8), it is characterized in that: brake lever (4) is connected with the tendons of beef, mutton or pork (3) by pivot pin (5), and spacing by pivot pin card (7), be provided with wave spring washer (6) between brake lever (4) and the pivot pin card (7).
2. the brake shoe assembly of band Parking leverage according to claim 1 is characterized in that: described brake lever (4) is provided with the rotation guide ledges (4-1) that cooperates with the tendons of beef, mutton or pork (3) surface of contact.
3. the brake shoe assembly of band Parking leverage according to claim 1 is characterized in that: described brake lever (4) is provided with the lever stop bit mechanism (4-2) that cooperates with the tendons of beef, mutton or pork (3).
4. the brake shoe assembly of band Parking leverage according to claim 1, it is characterized in that: described brake lever (4) end is provided with the fixedly brake lever crotch (4-5) of brake cable (8), is provided with the brake cable anti-shedding mechanism (4-3) spacing to brake cable (8) on the brake lever (4) in addition.
5. the brake shoe assembly of band Parking leverage according to claim 1 is characterized in that: the lower surface edge that described brake lever (4) contacts with the tendons of beef, mutton or pork (3) is provided with the smooth circular arc of transition (4-4) of anti-clamping stagnation locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020214566 CN201779187U (en) | 2010-06-01 | 2010-06-01 | Brake shoe assembly with parking lever mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020214566 CN201779187U (en) | 2010-06-01 | 2010-06-01 | Brake shoe assembly with parking lever mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779187U true CN201779187U (en) | 2011-03-30 |
Family
ID=43792399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020214566 Expired - Fee Related CN201779187U (en) | 2010-06-01 | 2010-06-01 | Brake shoe assembly with parking lever mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779187U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641034A (en) * | 2017-01-13 | 2017-05-10 | 江苏恒力制动器制造有限公司 | Drum brake with lubricating mechanism |
-
2010
- 2010-06-01 CN CN 201020214566 patent/CN201779187U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641034A (en) * | 2017-01-13 | 2017-05-10 | 江苏恒力制动器制造有限公司 | Drum brake with lubricating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20190601 |