Blocking plate type locking device for automotive adjusting arm

Abstract

The invention discloses a blocking plate type locking device for an automotive adjusting arm. The automotive adjusting arm comprises a casing (1) and a worm shaft (4) which is arranged inside the casing (1) and used for adjusting the brake clearance and the external end of the worm shaft (4) is provided with tooth shapes and extends outside the casing (1). The blocking plate type locking device for the automotive adjusting arm is characterized in that the locking device is arranged on the adjusting arm; the locking device comprises a locking bolt (5), a single ear anti-motion washer (6) and a blocking plate (3); tooth-shaped grooves are formed in the blocking plate (3); the blocking plate (3) is connected onto the casing through the single ear anti-motion washer (6) and the locking bolt (5); the tooth-shaped grooves of the blocking groove (3) are meshed with the tooth shapes which are arranged at the external end of the worm shaft; the brake clearance is adjusted in an equant mode by rotating the worm shaft for a circle. The blocking plate type locking device for the automotive adjusting arm is simple in structure, convenient to install and installed after the adjusting arm is installed, gaps are accurately adjusted through the tooth-shaped groove which is formed in the blocking plate, the retreating problem generated during the automobile braking is solved, and the safe reliability is high.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to a clip-type locking device of an automobile adjusting arm. Background technique [0002] The braking of the car is realized by utilizing the frictional force generated when the brake shoe and the brake drum come into contact. During the running of the car, the contact friction between the brake shoe and the brake drum is very frequent, so that the friction plate of the brake shoe will gradually wear out, and the gap between the brake shoe and the brake drum will gradually become larger, resulting in a decrease in the braking torque. Gradually fail, affecting the use safety of the braking system of the car during driving. In order to improve the safety of automobiles, automatic adjustment arms or manual adjustment arms are often provided in existing automobile braking mechanisms. These adjusting arms can make compensatory adjustments to the increased brake clearance between th...

AI Technical Summary

Problems solved by technology

[0005] The adjustment accuracy of the above-mentioned automobile manual adjustment arm has been significantly improved. However, due to the increasing load capacity of automobiles, the braking force demand during braking is also increasing. The brake chambers of most automobiles have changed from the past The 24-inch air chamber has been upgraded to the current 30-inch air chamber, and the brake air pressure has also been increased from 0.8MPa in the past to 1MPa. At present, when domestic automobiles (especially heavy-duty automobiles) brake, sometimes there will be a backlash phenomenon, causing automobile brakes When the brakes are weak, the braking distance is too long, resulting in potential safety hazards

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