Top block structure applied to braking clamp lever mechanism

Abstract

The invention discloses a top block structure applied to a braking clamp lever mechanism. The top block structure is provided with a top block body, the top block body is provided with two coaxial connecting shafts, the connecting shafts and the top block body are installed, connected or manufactured into a whole, the connecting shafts are located on the outer wall of the top block body, the top block body is provided with a radial location hole, and the location hole is in threaded connection with a limiting screw. A mounting hole is formed in the top block body, a fixed plug is installed in the mounting hole, a circumferential limiting groove is formed in the peripheral wall of the fixed plug, the front end face of the fixed plug is provided with a counter bore, and a pressing block is installed in the counter bore. After the top block structure is applied to the braking clamp lever mechanism, the maximal contact area of the pressing block of the top block structure and an output shaft of a brake cylinder can be maintained all the time, braking force transmission efficiency is effectively improved, in case of malfunction, manually-operated alleviation can be achieved by adjusting the fixed plug in the top block structure, operation is simple, after the pressing block is worn, it only needs to replace the pressing block, and maintenance cost is low.

Description

technical field [0001] The invention belongs to the technical field of basic braking devices, and in particular relates to a top block structure for a rail transit brake caliper lever mechanism. Background technique [0002] The lever of the existing floating single-side-acting brake caliper for rail transit is composed of only one lever body. It is changed by jacking up, so that the efficiency of the lever transmitting the braking force is low; at the same time, when there is a problem inside the clamp, it cannot be relieved; when working, one end of the lever body is frequently impacted by the output shaft of the brake cylinder, which is very easy to wear and tear, and The entire lever needs to be replaced, greatly increasing maintenance costs. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a top block structure for a brake caliper lever mechanism with high transmission braking force efficiency, manual relief function, easy operatio...

AI Technical Summary

Problems solved by technology

[0002] The lever of the existing floating single-side acting brake caliper for rail transit is only composed of a lever body. In actual work, the contact area and contact angle between one end of the lever body and the output shaft of the brake cylinder vary with the output shaft of the brake cylinder. It is changed by jacking up, which makes the efficiency of the lever to transmit the braking force low; at the same time, when there is a problem inside the clamp that needs to be alleviated, it cannot be alleviated; when working, one end of the lever body is frequently impacted by the output shaft of the brake cylinder, which is very easy to wear and tear. The entire lever needs to be replaced, greatly increasing maintenance costs

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