Brake shoe assembly

Abstract

The invention discloses a brake shoe assembly. The brake shoe assembly is used for braking a vehicle by virtue of friction with a brake drum, and comprises a brake shoe and a friction lining plate, wherein the brake shoe comprises a brake body and a plurality of connection portions fixed at one side close to the friction lining plate, of the brake body; each connection portion comprises a connection rod body and a friction end head; the friction end head is fixed with one end away from the brake body, of the connection rod body; an annular bulge is arranged at the middle portion of the connection rod body; a plurality of groove channels penetrating through the thickness direction of the friction lining plate are formed in the positions corresponding the connection portions, of the friction lining plate; the length of each connection rod body is equal to that of each groove channel; the inner diameter of each groove channel is greater than the outer diameter of each connection rod body and less than the outer diameter of each annular bulge; annular grooves are formed in the positions corresponding to the annular bulges of the connection rod bodies, of the groove channels; the maximum outer diameter of each friction end head is less than the inner diameter of each groove channel; the brake shoe is fixed with the friction lining plate through the matching between the groove channels and the connection portions; the connection rod bodies are produced by an elastic material; the friction end heads are produced by hard alloy.

Description

technical field [0001] The invention relates to the technical field of vehicle brake equipment, in particular to a brake shoe assembly. Background technique [0002] The vehicle brake is an important part of the vehicle and the key to ensuring driving safety. Vehicle brakes commonly used today include drum brakes and disc brakes. Drum brakes are mainly composed of base plates, brake drums, brake shoes, wheel cylinders, return springs and other components. The brake drum is installed on the wheel hub and rotates with the wheel. When braking, the wheel cylinder piston pushes the brake shoe to press the brake drum, and the brake drum is decelerated by friction, forcing the wheel to stop rotating. Drum brake is a relatively traditional brake, which is widely used because of its cheap price and good braking performance. Among them, the brake shoe is a key component of drum brake. In the prior art, for example, a brake shoe assembly disclosed in a utility model with the authori...

AI Technical Summary

Problems solved by technology

In the prior art, for example, a brake shoe assembly disclosed in a utility model with the authorized announcement number "CN203477135U" uses riveting to fix the brake shoe and the friction plate. The above fixing method is to ensure the riveting strength. , usually the number of riveting holes is large, which increases the workload of friction plate replacement, and when the number of riveting holes is small, the friction force of the brake shoe is limited and the braking ability is reduced

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