Automatic Adjustment Mechanism for Commercial Vehicle Disc Brake Clearance

Abstract

The invention relates to a chassis type automatic brake gap adjusting mechanism of a commercial vehicle and a manufacturing method thereof and belongs to the field of automobile parts. According to the technical scheme adopted by the invention, the adjusting mechanism comprises a cam-shaped pressure arm structure for braking power transmission; a support seat is arranged below a pressure arm; a master adjusting shaft and a slave adjusting shaft are arranged at two sides of the pressure arm structure, respectively; threads are formed in both the master and slave adjusting shafts; adjusting screws with one end exposed are arranged on both the master and slave adjusting shafts; a transmission gear, a return spring and a bottom cover are arranged below the support seat and the bottom cover is fixed on a brake. The adjusting mechanism has the advantages that aiming at potential dangers and problems during braking, returning and gap adjusting processes, an innovative design is performed, the work performance of the adjusting mechanism is greatly improved, the cooperation and work stability of inner parts are enhanced and the multiple problems of non-uniform braking power, gap adjusting failure, adjusting mechanism deformation, braking failure and the like during braking are solved; if the adjusting mechanism is applied to a brake, the safety and stability of the brake can be greatly improved and the service life of the brake can be greatly prolonged.

Description

technical field [0001] The invention relates to an automatic adjustment mechanism for disc brake gaps of commercial vehicles, which belongs to the field of vehicle parts. Background technique [0002] When the brake is in the initial normal braking gap, when braking, the brake air chamber acts on the pressure arm, so that the pressure arm of the cam structure drives the support seat to compress the return spring, and the entire adjustment mechanism assembly starts to move downward relative to the fixed reference plane To eliminate the normal brake clearance. The brake push plate pushes the brake block and exerts force on the brake disc to realize normal braking. At this time, the shift fork of the pressure arm turns from the lower side of the gap groove of the adjustment sleeve to the upper side. When the shift fork is in line contact with the upper side of the gap groove of the adjustment sleeve, the normal brake gap is eliminated to zero. For the adjustment mechanism, the...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a commercial vehicle disc brake clearance automatic adjustment mechanism, to solve the problem of automatic adjustment of the brake clearance, to ensure that the brake clearance is constant, and the brake is continuously effective

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