Novel high-speed brake block

Abstract

The invention provides a novel high-speed brake pad. Two brake blocks are sintered on a skeleton; a riveting hole is processed in a part, on the skeleton and between the two brake blocks; the sintered brake blocks and the skeleton are riveted on the front of a steel backing through the riveting hole; a space between the two brake blocks is in favor of ventilation, heat dissipation and chip removing during a braking process, the braking temperature of a friction block can be effectively reduced and the friction efficiency can be improved; and a dovetail plate is welded on the back side of the steel backing. In order to solve the problem that the adhering of the brake pad and a brake disc is inadequate, a wave-shaped shrapnel is installed between the steel backing and the skeleton; and in order to prevent excessive abrasion of a rivet, a bush is sleeved over the outer wall of the rivet.

Description

technical field [0001] The invention relates to a high-speed train braking device, in particular to a novel high-speed brake pad. Background technique [0002] At present, the brake pads of high-speed trains mostly use powder metallurgy brake pads. The cold-pressed powder metallurgy brake blocks are pressurized and sintered on the frame, and then the middle of the brake block and frame is riveted on the front of the steel back. A W-shaped dovetail plate is welded on the back to form a brake pad. Since the surface of the brake disc will be uneven after long-term use and wear, the brake pad with the above structure will cause insufficient bonding between the brake pad and the brake disc surface during the braking process of the high-speed train, resulting in low braking efficiency and unstable. Especially when the braking energy is high and the speed is high, the local pressure and temperature of the brake pads will be too high and the local cracks and blocks will be generat...

AI Technical Summary

Problems solved by technology

[0003] In view of the above problems, the invention provides a new type of high-speed brake pad. In order to avoid drilling the brake pads, two brake pads are sintered on a frame, and the riveting holes are processed on the part of the frame between the two brake pads. The sintered brake block and frame are riveted on the front of the steel back, and the space left between the two brake blocks is conducive to ventilation, heat dissipation and chip removal during the braking process, which can effectively reduce the braking temperature of the friction block and improve Friction efficiency; the dovetail plate is welded on the back of the steel back, in order to solve the problem of insufficient bonding between the brake pad and the brake disc surface, a wave shrapnel is installed between the steel back and the frame

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