Brake pads for high-speed train braking systems

Abstract

The invention discloses a brake pad for a high-speed train braking system, which comprises: a first steel back with an integral structure, and more than one spaced apart friction blocks are arranged above the first steel back; each friction block and the A second steel back is arranged between the first steel backs, and the middle area of ​​the second steel back has a raised portion facing the first steel back; hole, and a concave part is provided on the side of the first steel back that contacts the second steel back, and the concave part is matched with the raised part, and the fixed pin is provided on the concave part to freely pass through the first steel back. The first installation hole of the back; on the side of the first steel back and away from the second steel back, there is a snap ring that snaps onto the other end of the fixing pin, and the snap ring is located on the first steel back Inside. The above-mentioned brake pads can withstand relatively high thermal loads, and can reduce the eccentric wear phenomenon of the friction blocks in the brake pads, so that the friction surfaces of the corresponding brake discs are evenly stressed, and the braking efficiency is improved.

Description

technical field [0001] The invention relates to a disc brake device, in particular to a brake pad for a high-speed train braking system. Background technique [0002] The trains in the existing railway system are all equipped with a braking system. The executive unit of the common high-speed train braking system, namely the braking device, includes a brake disc and a brake pad, which are respectively arranged on the high-speed train. The wheels of each compartment are structured so as to receive braking commands from the braking system to generate braking force on the wheels. [0003] However, as the running speed of the train increases, its kinetic energy increases sharply, and the brake discs and brake pads of the braking system generate a large amount of heat during braking. In the prior art, the heat can only be dissipated through the heat transfer of the brake discs. , thus making the brake discs and brake pads of the braking device extremely vulnerable to damage, resu...

AI Technical Summary

Problems solved by technology

[0005] The problem caused by the copper-based powder metallurgy high-speed brake pads in the above-mentioned patent application is that it is difficult for the brake pads to withstand the harsh working conditions of the combined action of large thermal load and alternating stress during the braking process of high-speed trains, and it is easy to make the brake pads The friction block produces partial friction and other adverse phenomena

In the actual train operation, defects such as the falling of the friction block of the brake pads and partial friction can cause the brake failure or accelerated failure of the high-speed train, which not only wastes costs, but also leads to more accidents in high-speed trains.

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