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Combined brake return spring

A return spring and brake technology, applied in the field of springs, can solve the problems of limited installation position, hidden danger of traffic accidents, easy deformation and failure, etc., and achieve the effects of small full compression height, low production cost, and prolonged failure time.

Pending Publication Date: 2019-04-09
ANHUI ANKAI FUTIAN SHUGUANG AXLE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The return spring of the brake on the market adopts a cylindrical coil spring with the same hole diameter at both ends, and the middle part is connected in a straight line by the spring wire material of the spring body; this type of return spring has the following defects: the installation position is limited, the return spring stretches and When contracting, it moves in a straight line, and the middle part is easy to rub against the axle head of the axle housing, causing the spring wire to break and cause the brake to fail; the return spring adopts a cylindrical coil spring, which bears a small load and is always under force. The brake does not return to the position, the brake is locked, and there is a serious hidden danger of traffic accidents

Method used

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  • Combined brake return spring
  • Combined brake return spring
  • Combined brake return spring

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing:

[0021] refer to figure 1 and figure 2 A combined brake return spring shown includes a connecting rod 1 , two coil springs 2 and two connecting hooks 3 .

[0022] refer to image 3 As shown, the middle section of the connecting rod 1 is arched and arched, and the two ends of the connecting rod 1 are respectively welded or screwed to a cylindrical stop pin 4 .

[0023] The rod body section of the connecting rod 1 is rectangular, and the rectangular cross-section of the connecting rod 1 has high stress load, high fatigue resistance, and good orientation; the connecting rod 1 made of a rectangular cross-section material can be deformed in the same space and under the same deformation. Obtain a large load and have good returnability and are not easy to be stretched and deformed.

[0024] Moreover, the connecting rod 1 adopts the shape structure of the middle arch, which can...

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Abstract

The invention relates to a combined brake return spring comprising a connecting rod, two spiral springs and two connecting hooks; the middle section of the connecting rod is hunched up and is arched;the two ends of the connecting rod are each connected with a cylindrical stop pin; the rod body section of the connecting rod is rectangular; the diameters of holes in the two ends of any spiral spring are different, and the two ends of the connecting rod extend into the two spiral springs separately; the excircle size of the stop pin is larger than the diameter of the holes in the small ends of the spiral springs, and smaller than the diameter of the holes in the big ends of the spiral springs; the spring wire sections of the spiral springs are circular; and the two connecting hooks are connected with the tail ends of spring wires of the two spiral springs separately. According to the combined brake return spring, the service life of the brake return spring is prolonged, and the braking safety of a brake is improved.

Description

technical field [0001] The invention relates to the field of springs, in particular to a combined brake return spring. Background technique [0002] At present, drum brakes are mostly used in the heavy-duty vehicle market in the domestic market. The drum brakes mainly realize the return of the brake shoes through the return spring installed between the two brake shoes. The performance of the return spring directly affects the Vehicle braking performance. [0003] The return spring of the brake on the market adopts a cylindrical coil spring with the same hole diameter at both ends, and the middle part is connected in a straight line by the spring wire material of the spring body; this type of return spring has the following defects: the installation position is limited, the return spring stretches and When contracting, it moves in a straight line, and the middle part is easy to rub against the axle head of the axle housing, causing the spring wire to break and cause the brak...

Claims

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Application Information

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IPC IPC(8): F16F3/04
CPCF16F3/04
Inventor 符素敏魏天奇韦军韩娜邹国军陈效张正磊
Owner ANHUI ANKAI FUTIAN SHUGUANG AXLE CO LTD
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