Parking foundation brake device for vehicle

Abstract

The invention relates to a parking foundation brake device for a vehicle. The device comprises a braking clamp, a parking unit brake cylinder, a brake pad and a brake disc. The parking unit brake cylinder is composed of a unit brake cylinder and a parking cylinder; the unit brake cylinder comprises a brake cylinder, a middle body, a brake piston assembly, a brake adjusting mechanism and a yoke; the brake adjusting mechanism comprises an adjusting shaft, a guiding nut assembly, a resistant adjusting assembly and an adjusting nut assembly; the parking cylinder comprises a parking cylinder body, a parking piston assembly and a parking control mechanism; the parking control mechanism comprises a wedged body and a thrust sleeve. According to the device provided by the invention, a gap, between the brake pad and the brake disc, which is enlarged due to abrasion, can be automatically adjusted in the brake process, and the resistance adjusting assembly immediately acts when the brake force reaches a certain limit to resist the brake adjusting mechanism to adjust, so that the gap between the brake pad and the brake disc is still maintained in a normal range. The parking brake force provided by the invention is transferred through a bevel of the wedged body, so that the parking brake force is improved.

Description

technical field [0001] The invention relates to a vehicle with parking foundation braking device. Background technique [0002] See figure 1 and Figure 43 , The rail vehicle foundation braking device includes a brake caliper, a parking brake cylinder, a brake disc and a brake pad. The parking brake cylinder is composed of a unit brake cylinder and a parking cylinder. The parking brake cylinder and the brake pads are respectively installed at both ends of the brake caliper. The brake disc is installed on the wheel axle and is on the same brake caliper. Between the two brake pads, when braking, the unit brake cylinder of the brake caliper is inflated and stretched, and the brake pads and the brake disc are attached and rubbed 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 foundat...

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 China Patent Application No. 201420492365.6 discloses a vehicle with parking base brake device for rail transit. The above-mentioned vehicle belt park base brake device uses positioning pins to position the disc body and transmit braking torque, which is cumbersome to assemble. , the lack of heavy weight, and the lack of ideal heat dissipation also affect the braking performance

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