Commercial vehicle disc brake caliper assembly

Abstract

The invention relates to a commercial vehicle disc brake caliper assembly. The commercial vehicle disc brake caliper assembly comprises a brake caliper body, a left guide pin part, a main adjuster component, a slave adjuster assembly and a right a guide pin part, wherein the left guide pin part, the main adjuster component, the slave adjuster assembly and the right guide pin part are arranged on the brake caliper body; the main adjuster component is of a brake clearance adjuster structure with a gear clutch anti-overload function; the slave adjuster assembly is of a clamp spring structure; themiddle of the main adjuster component and the top of the slave adjuster assembly are connected through a chain wheel and chain mechanism; and the bottoms of the main adjuster component and the slaveadjuster assembly are connected to one side of the brake caliper body through a supporting seat dust cover. The commercial vehicle disc brake caliper assembly overcomes a lot of problems such as uneven braking force, clearance adjustment failure, adjustment mechanism deformation and brake failure possibly occurring in the braking process, is applied to a brake, eliminates the safety hazard existing among the various components of the adjuster, prolongs the service life of a product and improves the stability of the product.

Description

technical field [0001] The invention relates to a commercial vehicle disc brake caliper body assembly, which belongs to the technical field of automobile equipment. Background technique [0002] From the current technology, the existing commercial vehicle disc brake caliper body assembly has the following disadvantages: the dustproof plate is a stamping part, because this position is a stressed part, repeated braking impacts, it is easy to use It is deformed, resulting in sealing failure, and in severe cases, the stamping dustproof plate breaks, etc., and there are hidden dangers of braking; the original support seat dustproof cover is not well sealed, and it cannot be effectively waterproof and dustproof; from the adjustment mechanism to the spring structure, the structure Complex, long-term work will make the spring prone to fatigue and affect the service life; the main adjuster assembly uses a one-way bearing with a steel ball structure, which has a short service life, hi...

AI Technical Summary

Problems solved by technology

[0002] From the current technology, the existing commercial vehicle disc brake caliper body assembly has the following disadvantages: the dustproof plate is a stamping part, because this position is a stressed part, repeated braking impacts, it is easy to use It is deformed, resulting in sealing failure, and in severe cases, the stamping dustproof plate breaks, etc., and there are hidden dangers of braking; the original support seat dustproof cover is not well sealed, and it cannot be effectively waterproof and dustproof; from the adjustment mechanism to the spring structure, the structure Complex, long-term work will make the spring prone to fatigue and affect the service life; the main adjuster assembly uses a one-way bearing with a steel ball structure, which has a short service life, high temperature performance failure, and the processing of parts is difficult, and braking force will occur during braking Unevenness, clearance adjustment failure, adjustment mechanism deformation, brake failure and many other problems

[0005] However, the disadvantages of this type of structure are: 1. The matching size between the one-way bearing and the transfer sleeve is relatively high. If the control is not good, the processing tolerance will easily produce scrap parts, which will increase the production cost. If the size fit is too small or too large, it will lead to single If the bearing is deformed or falls off, there is a hidden danger of failure of the adjustment function; 2. If the processing of the ball socket rotation track does not meet the requirements, it will affect the rolling of the steel ball, and there will be steel ball sticking or abnormal noise; When the internal temperature is too high, it will cause deformation or damage. In addition, the injection part will be deformed if it is subjected to an overload force value or too many times of braking, resulting in failure of the adjustment function of the regulator.

4. The compression spring is placed in the airtight outer dial block, frequent braking will cause the temperature to rise, and the heat cannot be dissipated, resulting in the deformation of the spring steel wire due to heat, which affects the braking adjustment torque

[0006] The weakness of this structural adjuster is that the adjustment mechanism needs to work every time the brake is applied, and the pressure arm needs to move repeatedly with the adjustment sleeve every time. The movement of the adjustment sleeve will cause the gap adjustment or the internal overload protection function to operate continuously to protect the The adjustment mechanism operates stably; in addition, when the brake clearance needs to be adjusted, the adjustment distance of the brake clearance is too large, and the pressure arm rotates the adjustment sleeve every time, and the rotation angle is 45 degrees, which can easily lead to over-adjustment of the brake clearance and cause braking. Locking, at the same time, the steel ball frequently slips to prevent overload and reduce the service life

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