Motor vehicle vertical brake lever for preventing brake shoe eccentric-wear

Abstract

The invention discloses a motor vehicle vertical brake lever for preventing brake shoe eccentric-wear, relating to brake shoe connecting members in motor vehicles. The motor vehicle vertical brake lever is used for solving the problem that the safety of driving is affected due to serious brake shoe eccentric-wear. The motor vehicle vertical brake lever comprises a vertical lever body, wherein the vertical lever body is divided into an upper fixing end, a middle connecting end and a lower fixing end from top to bottom, the upper fixing end is provided with an upper fixing hole, the lower fixing end is provided with a lower fixing hole, the upper fixing hole and the lower fixing hole are located in the same horizontal plane along the radial direction, and the axes of the two holes are parallel to each other; a hanging pin hole which is used for fixing a brake shoe holder is formed in the middle position of the middle connecting end, and included angles of 3.8-5.7 degrees are respectively formed between the axis of the hanging pin hole and the axis of the upper fixing hole and between the axis of the hanging pin hole and the axis of the lower fixing hole. According to the motor vehicle vertical brake lever, a brake shoe can achieve angle change relative to the original form after the brake shoe is mounted, and the area of curve contact between the brake shoe and a rim can be increased; meanwhile, a one-sided stress state of the brake shoe is changed into center stress, the eccentric wear of the brake shoe is eliminated, and the brake shoe is enabled to be subjected to integral stress, so that the condition that the safety of driving is endangered due to the local fall-off and poor braking of the brake shoe after the eccentric wear occurs is avoided.

Description

technical field [0001] The invention relates to an inner brake shoe connecting piece of a motor vehicle, in particular to a motor vehicle brake vertical rod for preventing eccentric wear of the brake shoe. Background technique [0002] like figure 1 As shown, with the development of enterprise railway transportation at present, diesel locomotives are the main traction power of current railway transportation. During the transportation operation, due to the special operation of the enterprise, the transportation distance is short, and there are many reverse transportations. , Unluckily, the locomotive braking is abnormally frequent, resulting in abnormal wear of the locomotive brake shoes. At the same time, due to the design and structure of the original locomotive brake beam, when the brake shoes are in contact with the wheel rim tread curve, unilateral contact occurs, resulting in eccentric wear. Not only the brake shoes The consumption is large, and at the same time, the f...

AI Technical Summary

Problems solved by technology

[0002] such as As shown in Figure 1, with the development of enterprise railway transportation at present, diesel locomotives are the main traction power of current railway transportation. During transportation operations, due to the particularity of enterprise operations, the transportation distance is short, and there are many reverse transportations, so it is necessary to continue marshalling , Suspension, anti-hook, unlucky, the locomotive braking is abnormally frequent, resulting in abnormal wear of the locomotive brake shoes. Eccentric wear not only consumes a lot of brake shoes, but also causes the friction material to break and fall off due to the eccentric wear of the brake shoes, which reduces the braking force of the locomotive and endangers driving safety. Increased manpower and material costs to avoid traffic accidents

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