Double-motor leading-trailing shoe alternating type drive-by-wire brake and braking method thereof

Abstract

The drive-by-wire brake comprises a brake bottom plate, shoes are arranged at the left end and the right end of the brake bottom plate, the shoes are arranged in an arc shape, friction plates are fixedly arranged on the outer sides of the shoes, and the friction plates are arranged in an arc shape. Motors are arranged at the upper end and the lower end of the brake bottom plate, the motors are arranged between the two horseshoes, and the left ends and the right ends of the motors are fixedly connected with the horseshoes through push rods. The advantage that the leading-trailing shoe type motion mode, the double-leading shoe type motion mode and the bidirectional double-leading shoe type motion mode are freely switched by controlling the stretching amount of the motor push rod is achieved.

Description

technical field [0001] The invention belongs to the technical field of brakes, and in particular relates to a dual-motor lead-slave shoe alternate wire-controlled brake and a braking method thereof. Background technique [0002] The structure of dual-motor lead-follower alternating wire brake has undergone great changes since it was launched. The commonly used brake assembly structure is as follows: figure 1 As shown, its structure includes: camshaft, roller shaft, return spring, return spring pin, friction plate, shoe, shoe fixing pin, fastening screw, brake bottom plate, roller, spring washer, cam bushing Sleeves, shoe bushings. The outer end of the camshaft is indirectly connected to the brake chamber through the adjustment arm, while the inner end is directly attached to the two rollers. The driver exerts force on the brake pedal through the foot, so that the relative position of the pedal changes, so that the brake air chamber completes the charging process, thereby p...

AI Technical Summary

Problems solved by technology

In these two structures, the return spring must be used to return the shoe to control it, which makes it easy to cause breakage and loss of force during use, resulting in different degrees of damage to the brake and reducing the brake force. service life

At the same time, the existing brakes cannot switch the use of the leading shoe, so that the advantages of the leading shoe cannot be fully utilized, which increases the limitation of the use of the brake

In addition, the existing brakes cannot evaluate the wear degree of the friction plates on both sides, so the balance of the wear degree of the friction plates on both sides cannot be guaranteed

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