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Drum brake structure

A brake drum and drum technology, applied in the direction of the brake drum, etc., can solve the problems of low safety factor, difficult car control, steering wheel shaking, etc., and achieve the effects of improving mechanical performance, reasonable structure, and increasing overall strength.

Inactive Publication Date: 2013-10-09
GUANGDONG FUWA ENG MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Structural strength design and dynamic balance are important performance indicators of brake drums. If they are unbalanced, vibrations will be generated during driving, and the steering wheel will vibrate, making it difficult to control the car, and the safety factor is low, which will affect the safety of the car.

Method used

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Embodiment Construction

[0015] The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings.

[0016] Such as figure 1 , figure 2 As shown, the brake drum 1 of the present invention includes a flange portion 6, a bottom portion 7, a drum portion 8 and a mouth portion 4, the flange portion 6 is connected to the flange of the hub, and the bottom portion 7 is connected to the flange portion 6 and the drum portion 8 , the junction transitions with a circular arc, the mouth 4 is connected to the drum 8, the mouth 4 is the opening of the brake drum, the brake drum is made by casting, and the upper and lower mold parting surfaces of the existing brake drum casting mold are located at Above the mouth, therefore, for the overall appearance, it is necessary to cut the outer surface of the mouth after the blank is processed, and the end surface is flattened, thereby weakening the strength of the mouth. In view of this, in the present inv...

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Abstract

The invention discloses a drum brake structure which comprises a flange portion, a bottom portion, a drum portion and an opening portion. The flange portion is connected with a flange plate of a hub and the bottom portion is connected with the flange portion and the drum portion. The drum brake structure is characterized in that a plurality of hollow portions are arranged on the flange portion, the wall thickness of each hollow portion is smaller than that of the flange portion, and the thickness of the opening portion is 1.7-2 times as much as the average thickness of the drum portion. The top of a drum brake is reinforced, the opening portion is of material stacking and moving design, the wall thickness of the region of stress concentration is enhanced through finite element analysis, hollow thickness-reduction design is conducted on the position near an installation region of a flush bolt at the top, and the drum body middle portion of the drum brake serves as a dynamic balance weight removing region. The weight of the drum brake is kept unchanged, the overall strength is increased and the structure is more reasonable.

Description

technical field [0001] The invention relates to the technical field of trailer and semi-trailer components, in particular to a brake drum structure. Background technique [0002] The brake drum is one of the important parts of the car. It acts on the front and rear axles of the car, which not only affects the braking performance of the car, but also affects the balance of the wheels. The structural design and processing quality of the brake drum are directly related to the quality of the car. Safety, comfort, durability, low noise level. Structural strength design and dynamic balance are important performance indicators of brake drums. If they are unbalanced, vibration will be generated during driving, and the steering wheel will vibrate, making it difficult to control the car, and the safety factor is low, which will affect the safety of the car. [0003] The brake drum is connected to the hub. Usually, six countersunk bolts are used to connect the hub and the brake drum. ...

Claims

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Application Information

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IPC IPC(8): F16D65/10
Inventor 吴志强吴银初黄志荣徐志坚刘伟权
Owner GUANGDONG FUWA ENG MFG CO LTD
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