Fast-insertion wear alarm mechanism and assembly method thereof

Abstract

The invention relates to a fast-insertion wear alarm mechanism and an assembly method thereof. The fast-insertion wear alarm mechanism comprises a brake shoe; a brake lining is arranged above the brake shoe; a through hole I is formed in the brake lining; a through hole II is formed in the brake shoe; an alarm line assembly is embedded into the through hole I and passes through the through hole II, and is connected onto the brake shoe in a clamping manner through a clip hook; the alarm line assembly comprises an assembly body through which a wiring harness penetrates; and the wiring harness and a vehicle circuit system are connected and form a loop. According to the fast-insertion wear alarm mechanism and the assembly method thereof, the alarm line assembly is installed onto the brake shoeand the brake lining through the clip hook on an elastic clip, and the wear condition of the brake lining is judged in real time through make and break of the wiring harness; and the mechanism is simple in structure, fast and convenient to operate, easy to replace later and reliable in flexible locking, and has anti-seismic property.

Description

technical field [0001] The invention relates to the technical field of brake equipment, in particular to a quick-insertion wear alarm mechanism and an assembly method thereof. Background technique [0002] Drum brakes are the earliest braking mechanism used in automobile chassis braking systems. With the continuous development of the automobile industry, corresponding regulations have been promulgated one after another. The requirements for existing drum brakes have been continuously improved. Other intelligent auxiliary functions; the requirements mentioned in the new standard GB / T7258 "When the brake lining of the service brake needs to be replaced, an optical or acoustic alarm device should be used to alarm the driver in the driver's seat", which clarifies the drum type The construction of the brake shall include the requirement of an alarm device for warning of brake lining wear. [0003] In the prior art, wear alarm devices for drum brakes of various structures have su...

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Problems solved by technology

[0003] In the prior art, wear alarm devices for drum brakes of various structures have successively appeared on the market, which mainly refer to disconnected wear alarm devices that have been used in batches for disc brakes in terms of mechanism principles; the application of such alarm mechanisms Although the alarm function can be realized on the drum brake, due to the large difference in the overall structure of the drum and disc brakes, the increase of the alarm mechanism has led to the increase of many new processes and procedures on the drum brake, which has great side effects.

[0004] The profit margin of the automobile industry, especially the commercial vehicle industry, is extremely small. The increase of the alarm mechanism will inevitably lead to an increase in cost, and the alarm mechanism is a consumable part. The replacement cost after wear and the controllability of the replacement must be considered; in addition, affected by drum brakes Influenced by its own structure and working state, the installation space of the alarm mechanism is limited and its working environment is complex, so it must be shock-resistant and high-temperature resistant

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