Notching-type automobile drum brake lining

Abstract

The invention discloses a notching-type automobile drum brake lining. The notching-type automobile drum brake lining comprises a lining body, fixing plates, screw mounting bases and a drum brake. A lining movable end is arranged at the left side of the lining body, and a lining fixed end is arranged at the right side of the lining body. A lining friction face is arranged on the upper side surfaceof the lining body, and a lining mounting face is arranged on the lower side surface of the lining body. The fixing plates are arranged on the inner side surface of the lining body. Heat radiating grooves are formed between lining mounting plates of the fixing plates, and the lining mounting plates are distributed in a hexagon shape. The fixation range is wide, the number of the heat radiating grooves is large, the integral strength of the lining can be guaranteed and meanwhile the heat radiating effect of the lining is improved. In addition, the lining movable end is set to be thick, due to the facts that the movable end is pushed by a brake cylinder and the friction force between the movable end and the drum brake is large, the abrasion speed is high compared with the other end of the lining, the thick lining movable end can improve the braking effect of the lining at the later period, and the service life of the lining can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of automobile brake accessories, in particular to a slotted automobile drum brake lining. Background technique [0002] Drum brakes are equipped with brake pads in the brake drum. When braking, the piston will push the brake pads outward to generate friction with the brake drum to achieve the braking effect. Drum brakes have a simple internal structure and relatively low manufacturing costs. They are currently more common on the rear wheels of low-end cars and large trucks. In addition, the single braking force of drum brakes is better, and it has higher reliability on gravel roads. [0003] Although the original drum brake has good braking force, it is closed, so the heat dissipation is poor, accompanied by poor thermal attenuation ability, which will easily cause the brake lining to overheat, resulting in the surface of the lining and the surface of the brake drum. The relative friction capacity is reduc...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a slotted automobile drum brake lining to solve the problem that although the original drum brake proposed in the above background technology has good braking force, it has poor heat dissipation due to its closedness. The problem is that the thermal attenuation ability is poor, which can easily cause the brake lining to overheat, resulting in a decrease in the relative friction between the surface of the lining and the surface of the brake drum, resulting in a decrease in the braking ability.

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