Disc brake of anti-deflection double-push-rod thrust mechanism

Abstract

The invention provides a disc brake of an anti-deflection double-push-rod thrust mechanism. The disc brake of the anti-deflection double-push-rod thrust mechanism comprises a caliper body and the double-push-rod thrust mechanism, the double-push-rod thrust mechanism comprises a thrust seat, and first guide bosses are arranged on the upper portion and the lower portion of an inner cavity of the caliper body correspondingly; and second guide bosses are also arranged at the position corresponding to the installation of the thrust seat, the thrust seat is supported on the first guide bosses of theinner cavity of the caliper body through the second guide bosses to achieve guide, the thrust seat can only slide in the cavity of the caliper body in the thrust direction, and the thrust seat cannotdeflect and rotate, and deflection force borne by the thrust mechanism is transmitted to the inner cavity of the caliper body through the thrust seat and borne by the caliper body, so that output force of the thrust mechanism is stable, and reliability of parts is improved.

Description

technical field [0001] The invention relates to a disc brake of an anti-deflection thrust mechanism. Background technique [0002] Disc brakes have the advantages of good high temperature resistance under high load, stable braking effect, and more suitable for braking under harsh road conditions. Therefore, national regulations are actively promoting the application of disc brakes in commercial vehicles, and have replaced drum brakes. Brake Trend. [0003] The structure and principle of the disc brake is: a brake disc is located in the middle, and a thrust mechanism is used to push the block friction plate to compress the brake disc to produce friction force, thereby reducing the speed of the friction plate until it stops, so that the vehicle slows down or stops. . Since the brake disc is circular, the linear velocity of the outer ring and the inner ring are different, and the linear speed of the outer ring is greater than that of the inner ring, so that the thrust mechani...

AI Technical Summary

Problems solved by technology

Since the brake disc is circular, the linear velocity of the outer ring and the inner ring are different, and the linear speed of the outer ring is greater than that of the inner ring, so that the thrust mechanism needs to bear pressure and torsional force during operation, causing the thrust mechanism to yaw and twist, resulting in output force Instability and reduced reliability of thrust mechanism parts

The thrust mechanism generally has two structures: double push rod and single push rod. Due to the limitation of space layout, the single push rod thrust mechanism can generally be arranged with an anti-deflection structure, but its output torque is small and the scope of use is narrow; the output torque of the double push rod thrust mechanism is large. , but it is difficult to arrange the anti-deflection structure

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