High-speed brake pad provided with connection board

Abstract

The invention provides a high-speed brake pad provided with a connection board, wherein the connection board is added to a steel back, a dovetail board is installed on the connection board, and the connection board is connected with the steel back in a riveted mode. Welding deformation of the steel back and the dovetail board is eliminated, strength of the steel back is enhanced, the steel back cannot be deformed or shake under the action of pushing force of a brake, and a resilient pad is installed between the steel back and a skeleton of a brake block, so that the brake block can be effectively and tightly attached to a brake disc to achieve friction braking. By means of the structure, under the action of pushing of brake pressure, the brake block can be tightly attached to the brake disc in the same plane to conduct braking, and the problems of eccentric abrasion, falling of edges and corners of the brake block, low braking efficiency, long braking distance and the like are solved, wherein falling of the edges and the corners of the brake block, low braking efficiency, and long braking distance are caused by eccentric abrasion.

Description

technical field [0001] The invention relates to a high-speed train brake device, in particular to a high-speed brake pad with a connecting plate. Background technique [0002] High-speed brake pads are a key component in the braking system of high-speed trains. They are mainly composed of multiple brake blocks, steel backs and dovetail plates. During the process, multiple brake blocks of the high-speed brake pads rub against the brake disc of the high-speed train on the same plane to stop the train. However, in the high-speed brake pads widely used in the prior art, spot welding is used for the connection between the dovetail plate and the steel back, that is, several through holes are processed at the position where the bottom of the W-shaped dovetail plate is in contact with the steel back. Spot welds at the holes connect the dovetail plate and steel backing together. The local high temperature generated during the welding process can easily lead to deformation of the st...

AI Technical Summary

Problems solved by technology

The local high temperature generated during the welding process can easily lead to deformation of the steel back. The deformation of the steel back will cause the two brake blocks to not be on the same plane. Although it can be eliminated by subsequent machining, the deformation of the dovetail plate caused by welding cannot be eliminated.

After the high-speed brake pad is installed on the braking device of the high-speed train, the brake block cannot be fully contacted with the brake disc, and the braking performance is unstable and the efficiency is low. Under high speed, high braking energy and high pressure, this The phenomenon is more serious and the safety hazard is huge

At the same time, there will inevitably be pores, cracks, and virtual welds in the welds during welding, which also pose potential safety hazards

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