Friction block steel backing with porous structure and braking pad with friction block steel backing

Abstract

The invention relates to the technical field of steel backings, in particular to a friction block steel backing with a porous structure. The friction block steel backing comprises a steel backing body(1). Multiple cavities (2) which communicate with one another are formed in the steel backing body (1). Each cavity (2) communicates with the outside through at least one first opening hole (3), wherein the hole diameter of the first opening hole (3) is smaller than the inner diameter of the cavity (2). The invention further relates to a braking pad with the above friction block steel backing. Afriction body (6) is installed on the steel backing body (1), and the first opening hole (3) of the steel backing body (1) are formed in the top face, away from the friction body (6), of the steel backing body (1). By means of the friction block steel backing with the porous structure and the braking pad with the friction block steel backing, the arrangement manner of a noise reduction hole on thesteel backing follows a certain rule so that noise generated in the running and braking processes of a train can be reduced, and the noise reduction effect is improved.

Description

technical field [0001] The invention relates to the technical field of steel backs, in particular to a friction block steel back with a porous structure and a brake pad with the same. Background technique [0002] The rapid development of high-speed railways has greatly facilitated people's lives, but at the same time, more and more attention has been paid to the noise problem during the operation of trains. These noises will affect the surrounding environment and cause noise pollution. The noise when the train is running is mainly divided into: the friction sound when the train is braking; the vibration and friction sound when the rail and the train are running; the resonance sound and resistance sound generated between the train and the air when it is running. In the braking and braking field of trains, a disc brake structure is currently used in railway trains, including brake discs and brake pads. The steel back of the friction block in the brake pad adopts a solid stru...

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the noise reduction hole on the steel back of the brake pad is arranged in a single way and the noise reduction effect is not ideal in the prior art, thereby providing a kind of arrangement of the noise reduction hole on the steel back The method follows certain rules to reduce the noise of the train during operation and braking, and to improve the noise reduction effect of the steel back of the friction block with a porous structure and the brake pads with it

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