vehicle foundation brake

Abstract

A vehicle foundation braking device comprises a braking clamp, an unit braking cylinder, a brake pad and a brake disc, wherein the unit braking cylinder comprises a braking cylinder body, an intermediate body, a braking piston assembly, a braking adjusting mechanism and a yoke; the braking adjusting mechanism comprises an adjusting shaft, a guide nut assembly and an adjusting nut assembly; a parking cylinder comprises a parking cylinder body, a parking piston assembly and a parking control mechanism; the parking control mechanism comprises a wedge-shaped body and a thrust sleeve. The vehicle foundation braking device is reliable in braking performance, and particularly can automatically adjust a gap which is enlarged caused by the wear between the brake pad and the brake disc during the braking process; an adjusting resisting assembly can timely act to resist adjustment of the braking adjusting mechanism when the braking force reaches a certain degree, and thus the gap between the brake pad and the brake disc can be kept within the normal range all the time.

Description

technical field [0001] The invention relates to a vehicle foundation braking device. Background technique [0002] See figure 1 and Figure 29 , The rail vehicle foundation braking device includes a brake caliper, a unit brake cylinder, a brake disc and a brake pad. The unit brake cylinder and the brake pads are respectively installed at both ends of the brake caliper. The brake disc is installed on the wheel shaft and between the two brake pads on the same brake caliper. When braking, the unit brake cylinder Inflated and elongated, the brake pads and brake discs are attached and rubbed together through the principle of leverage, thereby producing a braking effect. The utility model with the Chinese application number 201420447307.1 discloses a connection structure between the brake caliper and the brake cylinder of the rail vehicle foundation brake device. The brake caliper is composed of a hanger, a lever and a brake pad holder. The brake caliper has a symmetrical arran...

AI Technical Summary

Problems solved by technology

The utility model of Chinese patent application number 201521097844.9 discloses a powder metallurgy brake pad, the friction block and the steel back are fixedly connected, the brake pad has no angle adjustment and floating adjustment during braking, and the friction block cannot be adjusted by itself, which is easy There are cracks, defects, etc.; and due to the inconsistent radial velocity of the brake disc, the friction block has a large difference in thickness between the inner and outer rings, which is very prone to eccentric wear

The utility model patent of Chinese patent application number 201420492365.6 discloses a vehicle with parking base brake device for rail transit. The above-mentioned device uses positioning pins to position the disc body and transmit the braking torque, which has the disadvantages of cumbersome assembly and heavy weight, and The lack of ideal cooling effect also affects the braking performance

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