Ejector rod movable device for automatic braking execution mechanism of automobile

Abstract

The invention provides a movable device for the ejector rod of an automatic brake actuator of an automobile, which mainly includes a movable device seat and a pulley; the front end of the movable device seat is a U-shaped groove, and the pulley is installed in the middle of the U-shaped groove; On both sides, the bearings are separated by two elastic retaining rings; there are two opposite pulley shaft holes at both ends of the U-shaped groove. The center is used to fix the pulley shaft; a through hole is opened in the cylinder at the rear end of the movable device seat, and two opposite connection screw holes are opened on the side. When in use, the inner hole at the rear end of the movable device seat is connected with the rack of the automatic braking actuator, and the movable device seat and the rack are fixed together by locking screws. The beneficial effects are as follows: the contact movement mode of the ejector rod movable device and the brake pedal arm is rolling friction, and compared with the sliding friction of the previous generation, the friction force is smaller, the response time of the actuator is reduced, and the precision of automatic braking is improved.

Description

technical field [0001] The invention relates to an accessory of an automatic anti-collision device for automobiles, in particular to a movable device for a push rod of a braking actuator of an automatic anti-collision device for automobiles. Background technique [0002] The automatic braking of the automatic anti-collision device of the automobile needs to be executed by the brake actuator. The connection scheme between the rack and the brake pedal arm in the existing brake actuator is as follows: 1. The end of the rack is directly against the automobile system. On the moving pedal arm, through the reciprocating motion of the rack, the brake pedal moves forward and backward to realize automatic braking; 2. A plastic sheath is added to the end of the rack, and the plastic sheath is pressed against the brake pedal arm of the car, and the rack reciprocates Movement pushes the brake pedal back and forth for automatic braking. The problems in the above schemes are as follows: W...

AI Technical Summary

Problems solved by technology

The problems in the above schemes are as follows: When the rack reciprocates in scheme 1, there is sliding friction between the end of the rack and the brake pedal arm, and the friction force is relatively large, which affects the automatic braking force, accuracy, braking speed and return Speed; Option 2 works the same as Option 1, except that a plastic sheath is added to the end of the rack to reduce wear on the end of the rack and the brake pedal arm

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