Brake friction auxiliary block wear compensation mechanism

Abstract

The invention patent discloses a brake friction auxiliary block wear compensation mechanism. The brake friction auxiliary block wear compensation mechanism comprises a friction main block which is arranged on one side of a brake hub and a hydraulic piston which is used for pushing the friction main block to press the brake hub, an adjusting shell body is arranged on one side, opposite to the friction main block, of the brake hub; the adjusting shell body is provided with a friction auxiliary block abutting against the friction main block and a plurality of rows of ejection assemblies ejectingthe friction auxiliary block out for a certain distance, the ejection assemblies are connected with a plurality of rotating assemblies for pushing out the ejection assemblies row by row; and a pressing and ejecting assembly is arranged on the outer edge of the friction auxiliary block. By controlling the arranged rotating assemblies, the arranged ejection assemblies can be pushed one by one to eject out the friction auxiliary block row by row, so that full contact between the friction auxiliary block and the brake hub is facilitated, the ejection assemblies eject out, meanwhile, pressurizing is conveniently carried out on the top position of the friction auxiliary block through the pressing and ejecting assembly, and the risk that after the side face of the friction auxiliary block is repeatedly abraded with the brake hub, the pressing brake effect between the top of the friction auxiliary block and the friction auxiliary block becomes poor is avoided.

Description

technical field [0001] The invention belongs to the technical field of brakes, and in particular relates to a brake friction auxiliary block wear compensation mechanism. Background technique [0002] A brake is a device that has the functions of decelerating, stopping or keeping a moving part (or moving machinery) in a stopped state. It is a mechanical part that stops or slows down the moving parts in the machine. Commonly known as brakes, brakes. The brake is mainly composed of frame, brake parts and operating device. Some brakes are also equipped with an automatic adjustment device for the clearance of the brake parts. In order to reduce the braking torque and structural size, the brake is usually installed on the high-speed shaft of the equipment, but for large-scale equipment with high safety requirements (such as mine hoists, elevators, etc.), it should be installed on the low-speed shaft close to the working part of the equipment. The tendency of using the friction...

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Problems solved by technology

[0003] The existing brake pressure plate is installed at the top position of the brake through the action between the pin shaft and the cotter pin, which has a pressing effect on the brake friction block. The existing brake friction block is divided into a movable friction block and a friction auxiliary block. The friction block is pushed by the piston under the action of brake oil, so that the movable friction block squeezes the brake hub and the friction auxiliary block contacts each other. Since the side position of the friction auxiliary block is easier to contact the brake hub than the middle position, when the side of the friction auxiliary block and the braking When the wear between the moving hubs is intensified, the friction contact between the side position of the friction auxiliary block and the brake hub is reduced, and there is a gap in the pressing of the brake pressure plate to the side position of the friction auxiliary block, so that there is a gap between the pressure plate and the friction auxiliary block. Motion effect reduced

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