Floating caliper disc brake

Abstract

The invention discloses a floating caliper disc brake. The floating caliper disc brake is composed of a brake block, a brake piston, a piston sealing ring, a brake caliper body, a caliper body support, a brake disc and the like. The floating caliper disc brake is characterized in that the brake disc is arranged at one end of a disc seat and is fixed by an M10 bolt, the caliper body support is fixed to a frame through an M12 bolt, the brake caliper body is connected with the caliper body support through a shaft pin and a shaft pin bolt, the brake piston is installed in a piston cavity of the brake caliper body and can do reciprocating motion, the piston sealing ring is installed in a groove of the brake piston, the cross section of the brake piston is a shape similar to an oval, and the oval-like section is composed of two semicircles and a rectangle, and an oval-like rubber ring is arranged so as to be matched with the oval-like piston sealing ring and the oval-like piston cavity in the brake caliper body. The contact size of the brake piston and the brake block in the tangential direction relative to the brake disc is increased, so that the thrust borne by the brake block in the braking process is more uniform, and the braking performance of the brake is not influenced while the eccentric wear of the brake block is reduced.

Description

technical field [0001] The invention relates to the field of automobile braking systems, in particular to a novel floating caliper disc brake which can reduce the problem of eccentric wear at both ends of the inner brake block. Background technique [0002] Nowadays, the problem of eccentric wear of the brake pads of automobile disc brakes often occurs. Car users have to replace their brake pads with new ones every once in a while, which creates great distress for them. In addition, if the brake pads are eccentrically worn, it will eventually cause problems such as brake deviation and noise of the car. The eccentric wear of the brake pads will also affect the performance of other components such as brake discs. [0003] For the problem of eccentric wear of brake pads, the measures adopted are often the selection and improvement of friction materials, shortening the length of hydraulic oil circuit to improve response, and checking the size chain during assembly. However, t...

AI Technical Summary

Problems solved by technology

Theoretically, the action point of the piston thrust is located at the center of the brake block, but in actual braking, the cylindrical piston pushes the fan-shaped brake block that is larger than its own cross-section, especially the contact ratio in the tangential direction of the brake disc is relatively small, which may cause The force acting point shifts to both ends of the brake block, causing uneven friction at the front and rear ends of the inner brake block, resulting in eccentric wear

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