Gap adjusting device for locomotive brake

Abstract

The invention provides a gap adjusting device for a locomotive brake. The gap adjusting device comprises a wheel tread, a brake shoe, a gap detecting device, a signal conditioning module, a micro-controller, a stepping motor and an electric actuating mechanism. By means of the gap adjusting device, the distance between the brake shoe and the wheel tread, the distance between a braking lining and the wheel tread, the distance between the brake shoe and the wheel tread and the distance between the brake lining and the brake disc can be adjusted automatically and kept constant.

Description

technical field [0001] The invention relates to a rolling stock brake, in particular to a clearance adjustment device for a rolling stock. Background technique [0002] The locomotive unit brake is an important component of the locomotive's basic braking device. It applies the air braking force to the wheel tread or brake disc through the amplifying mechanism, brake shoe or brake pad to generate frictional braking torque, thereby exerting force on the locomotive. air brake. Due to the frequent braking of ten locomotives, the wear between the brake pads and the wheel tread or the brake disc will make the gap between the brake pads and the wheel tread or the brake disc larger and larger, resulting in a decrease in the braking force, resulting in the inability to operate the locomotive Braking will seriously affect the running safety of the locomotive. At present, the brake clearance adjustment device of the locomotive unit generally adopts a ratchet hook type clearance adjus...

AI Technical Summary

Problems solved by technology

Due to the frequent braking of ten locomotives, the wear between the brake pads and the wheel tread or the brake disc will make the gap between the brake pads and the wheel tread or the brake disc larger and larger, resulting in a decrease in the braking force, resulting in the inability to operate the locomotive Braking will seriously affect the safety of locomotive operation

At present, the brake clearance adjustment device of the locomotive unit generally adopts a ratchet hook type clearance adjustment mechanism. The main disadvantages of this adjustment mechanism exposed during operation are: the clearance adjustment mechanism is not sensitive, and it is easy to automatically apply the brake to cause safety hazards; The amount of compensation for the brake shoe wear gap is too small. After replacing the brake shoe, the brake shoe needs to be operated several times in a row to adjust the brake shoe to the normal braking gap; sometimes the adjustment mechanism is stuck; Smaller and smaller, resulting in non-relief phenomena such as brake shoe sticking or locking; it cannot eliminate the impact of the elastic deformation of the system on the brake shoe clearance

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