CN2694046Y - Drum brake with self-adjusting function when parking - Google Patents

Drum brake with self-adjusting function when parking Download PDF

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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
Application number
CN 03237662
Other languages
Chinese (zh)
Inventor
李祥云
曾维刚
熊泽伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CSG TRW Chassis Systems Co Ltd
Original Assignee
Chongqing Hongyu Precision Industrial Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Hongyu Precision Industrial Co ltd filed Critical Chongqing Hongyu Precision Industrial Co ltd
Priority to CN 03237662 priority Critical patent/CN2694046Y/en
Application granted granted Critical
Publication of CN2694046Y publication Critical patent/CN2694046Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

The drum brake of self-regulated during Parking
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).
CN 03237662 2003-09-28 2003-09-28 Drum brake with self-adjusting function when parking Expired - Fee Related CN2694046Y (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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