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In-disk drum brakes that prevent brake shoes from falling

A drum brake and brake shoe technology, applied in drum brakes, brake types, brake parts, etc., can solve problems such as drag and wear, eliminate wear and abnormal noise problems, improve service life and parking performance, simple structure

Inactive Publication Date: 2018-08-07
GUANGZHOU ZHONGBO BRAKE SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to propose a drum brake in a disc that can prevent the brake shoe from falling, so as to solve the dragging problem caused by the brake shoe falling under the action of gravity and bumping impact force in the prior art, thereby improving the braking performance. car performance

Method used

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  • In-disk drum brakes that prevent brake shoes from falling
  • In-disk drum brakes that prevent brake shoes from falling
  • In-disk drum brakes that prevent brake shoes from falling

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Embodiment Construction

[0031] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] see Figure 3 to Figure 9 , a disc-in-drum brake that can prevent brake shoes from falling proposed in the embodiment includes a bottom plate mechanism 10, a first brake shoe 20, a second brake shoe 30, a brake drum 40, and a brake shoe adjustment mechanism 50 , the first brake shoe pressing mechanism 60 , the second brake shoe pressing mechanism 70 , the brake shoe spreading mechanism 80 and the limit mechanism 90 . The structure of each component is described in detail below. The orientation words "upper" and "lower", "top" or "top", "bottom" or "bottom", "inside" and "outside" involved in the following descriptions can all be image 3 The relative orientation of each component is the reference, for example image 3 Middle: the brake shoe adjustment mechanism 50 is relativ...

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Abstract

The invention relates to an in-disc drum brake capable of preventing brake shoes from falling. The brake comprises a bottom plate mechanism, the first brake shoe, the second brake shoe, a brake drum, a brake shoe adjusting mechanism, a first brake shoe compressing mechanism, a second brake shoe compressing mechanism, a brake shoe supporting-open mechanism and a limiting mechanism; the limiting mechanism is arranged between the upper end of a first wing plate of the first brake shoe and the upper end of a second wing plate of the second brake shoe, under the effect of gravity and turbulence impact force, gaps between the first brake shoe and the brake drum and between the second brake shoe and the brake drum are kept uniform, and the dragging wear problem caused by brake shoe falling is effectively prevented; the service life of the in-disc drum brake is greatly prolonged, the parking performance is greatly improved, meanwhile, the problems of wear and abnormal sounds are solved, and extra oil consumption and power loss problems caused by dragging wear can be solved.

Description

technical field [0001] The invention relates to the technical field of disc-in-drum brakes, in particular to a two-way servo disc-in-drum brake that can be applied to SUVs and pickup trucks and is specially used for parking. Background technique [0002] A disc drum brake is a drum brake mounted on the rear wheel for parking and emergency braking. The disc-in-drum brake combined with the service brake, that is, the brake caliper, can ensure smooth braking of the vehicle. The drum brake specially used for parking is a two-way servo disc drum brake, which has the advantages of simple structure, high parking efficiency and low cost. [0003] The braking principle of disc drum brake is as follows: figure 1 Shown: Parking handbrake tension is transferred to disc drum brake and becomes figure 1 The F force is shown, and the F force pushes the brake shoe 1 closer to the brake drum 2, compresses the brake drum 2, and the brake shoe 1 and the brake drum 2 rub to generate parking b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D51/20F16D65/04F16D65/42
CPCF16D51/20F16D65/04F16D65/42
Inventor 伍文明
Owner GUANGZHOU ZHONGBO BRAKE SYST CO LTD
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