CN2694046Y - Drum brake with self-adjusting function when parking - Google Patents
Drum brake with self-adjusting function when parking Download PDFInfo
- Publication number
- CN2694046Y CN2694046Y CN 03237662 CN03237662U CN2694046Y CN 2694046 Y CN2694046 Y CN 2694046Y CN 03237662 CN03237662 CN 03237662 CN 03237662 U CN03237662 U CN 03237662U CN 2694046 Y CN2694046 Y CN 2694046Y
- Authority
- CN
- China
- Prior art keywords
- self
- parking
- brake shoe
- utility
- adjusting plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Braking Arrangements (AREA)
Abstract
The utility model relates to a drum brake with self-adjusting function when parking and the utility model is characterized in that: a self-adjusting plate 6 is hinged on a pin 5; the hook part of one end is hooked on an arm 7 of the parking vehicle; and the hook head of the other end is engaged with the ratchet wheel of a self-adjusting device assembly 4. When the parking vehicle is parking, the arm 7 of the parking vehicle rotates by winding a supporting point under the effect of a rope force. The self-adjusting plate 6 and the arm 7 of the parking vehicle are integral, and the self-adjusting plate 6 and the arm 7 of the parking vehicle rotate together. The hook head of the other end of the self-adjusting plate makes the ratchet wheel rotate. A space autocompensation is realized by a screw and a screw sleeve in the self-adjusting device assembly 4. The utility model avoids the frequent nonproductive work of the self-adjusting plate when the vehicle is traveling; the utility model avoids inducing the beforehand fatigue of the self-adjusting plate; and the utility model improves the reliability and the service life of the self-adjusting device.
Description
Affiliated technical field
The utility model relates to automobile drum brake.It specifically is a kind of function drum brake of when Parking, realizing clearance self-regulating.
Background technique
At present, known drum brake includes braking bottom board, wheel cylinder, brake shoe band friction plate assembly, allots plate, self-reacting device assembly, return spring, brake shoe hold-down mechanism etc. certainly.Wherein, common is in the driving braking process, and when the gap between device, the drum during greater than design gaps, the wheel cylinder hydraulic coupling promotes brake shoe, drives from alloting plate, realizes that the gap adjusts automatically.But because service brake is frequent, when the gap between device, the drum during less than design gaps, the gap can not be compensated, and still moves and allot plate certainly, makes from alloting the plate premature fatigue to lose efficacy, and shortens its working life.
Summary of the invention
Existing in order to overcome from alloting plate at the numerous non-productive work of driving time-frequency, premature fatigue, the deficiency that shorten working life, technical problem to be solved in the utility model provides a kind of drum brake of realizing the clearance self-regulating function when Parking, has avoided alloting certainly plate at the numerous non-productive work of driving time-frequency.
The technological scheme that its technical problem that solves the utility model adopts is: the plate of alloting certainly of self-reacting device assembly is articulated on the pin, and one end hook portion hook forms an integral body with the Parking torque arm, the ratchet engaged of the other end gib head and self-adjustment structure in the Parking torque arm.
The working principle of said structure is such: during Parking, the Parking torque arm is rotated around fulcrum under the wire-pulling force effect, and alloting plate and Parking torque arm certainly is an integral body, and then rotate, drive the ratchet rotation from alloting the plate hook head,, realize clearance automatic compensation by screw rod, swivel nut.
The beneficial effects of the utility model are, have avoided from alloting plate at the driving numerous non-productive work of time-frequency and alloting certainly plate premature fatigue, the reliability and the working life of having improved self-reacting device of causing.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structure principle chart of the present utility model.
1. braking bottom boards among the figure, 2. brake shoe band friction plate assembly, 3. wheel cylinder, 4. self-reacting device assembly, 5. pin is 6. from alloting plate, 7. Parking torque arm, 8. brake shoe hold-down mechanism, 9. extension spring
Embodiment
In Fig. 1, wheel cylinder 3, brake shoe band friction plate assembly 2 is installed on the braking bottom board 1, and self-reacting device assembly 4 is installed in the groove of brake shoe band friction plate assembly 2, brake shoe band friction plate assembly 2 usefulness brake shoe hold-down mechanisms 8 are braking bottom board 1 fixedly, and strains with return spring 9.Be articulated on the pin 5 on the brake shoe from alloting plate 6, an end hook portion hook in Parking torque arm 7, the ratchet engaged of the other end gib head and self-reacting device assembly 4.Be connected with another brake shoe by extension spring 9 from alloting plate.During Parking, Parking torque arm 7 is rotated around fulcrum under the wire-pulling force effect, and alloting plate 6 certainly is an integral body with Parking torque arm 7, and then rotate, stir ratchet from the other end gib head of alloting plate and rotate,, realize clearance automatic compensation by screw rod, the swivel nut in the self-reacting device assembly 4.
Claims (2)
1, the drum brake of self-regulated during a kind of Parking, comprise braking bottom board (1), wheel cylinder (3), brake shoe band friction plate assembly (2), Parking torque arm (7) and self-reacting device assembly (4), wherein brake shoe band friction plate assembly (2) is installed on the braking bottom board (1), self-reacting device assembly (4) is installed in the groove of brake shoe band friction plate assembly (2), brake shoe band friction plate assembly (2) fixedly braking bottom board (1) of brake shoe hold-down mechanism (8), and by return spring (9) tension; It is characterized in that: the alloting certainly on the pin (5) that plate (6) is articulated in a brake shoe of self-reacting device assembly (4), an end hook portion hook forms an integral body with the Parking torque arm in Parking torque arm (7), the ratchet engaged of the other end gib head and self-reacting device assembly (4).
2, the drum brake of self-regulated during Parking according to claim 1 is characterized in that: allot plate (6) certainly and be connected with another brake shoe by extension spring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03237662 CN2694046Y (en) | 2003-09-28 | 2003-09-28 | Drum brake with self-adjusting function when parking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03237662 CN2694046Y (en) | 2003-09-28 | 2003-09-28 | Drum brake with self-adjusting function when parking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2694046Y true CN2694046Y (en) | 2005-04-20 |
Family
ID=34755204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03237662 Expired - Fee Related CN2694046Y (en) | 2003-09-28 | 2003-09-28 | Drum brake with self-adjusting function when parking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2694046Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899691A (en) * | 2014-04-22 | 2014-07-02 | 重庆市璧山宏向汽配有限公司 | Gap adjustment device of draw-arm-type brake |
-
2003
- 2003-09-28 CN CN 03237662 patent/CN2694046Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899691A (en) * | 2014-04-22 | 2014-07-02 | 重庆市璧山宏向汽配有限公司 | Gap adjustment device of draw-arm-type brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CSG TRW CHASSIS SYSTEMS CO., LTD. Free format text: FORMER OWNER: CHONGQING HONGYU PRECISION INDUSTRY CO., LTD. Effective date: 20071012 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071012 Address after: 9-1 No. 402760 Chongqing city Bishan County town of jade Hongyu Road Patentee after: CSG TRW Chassis Systems Co., Ltd. Address before: 9 No. 402760 Chongqing city Bishan County town of jade Hongyu Road Patentee before: Hongyu Precision Industry LLC, Chongqing |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050420 Termination date: 20120928 |