Electronic parking executor applied to motor vehicle brake system

Abstract

The invention discloses an electronic parking executor 1 applied to a motor vehicle brake system, which comprises a shell, a cover, a motor, motor accessories, a planetary gear transmission mechanism, parking brake calipers and the like. The electronic parking executor also comprises an integrated transmission mechanism frame, wherein a transmission mechanism and a planetary gear transmission mechanism from a motor shaft and a planetary gear main shaft are installed on a body in the integrated transmission mechanism frame, and the power transmission route of the transmission mechanism is from the motor shaft to the planetary gear main shaft. The technical scheme provided by the invention can effectively solve the problems of inconsistent assembly between rigid spacers and the motor shaft and the main shaft of the planetary gear transmission mechanism, axial nonparallelism and easy deformation of the rigid spacers after stressing in the prior art; meanwhile, the invention also has the characteristics of increasing the stability of internal transmission mechanism and the performance consistency after being connected with braking, reducing assembly cost, increasing assembly quality, benefiting tests, having good batch consistency and the like.

Description

Technical field [0001] The invention belongs to the technical field of motor vehicle brake system manufacturing, and specifically relates to an electronic parking actuator applied to a motor vehicle parking brake system. Background technique [0002] At present, in motor vehicle parking brake systems, especially in electronic parking brake systems, the integrated rear caliper electronic parking brake has multiple functions and is easy to install, which has become a development trend. . The only power source of the electronic parking brake with this structure is the motor, and the motor transmits the power to the brake caliper assembly through the transmission mechanism to complete the parking brake of the vehicle. The motor, the transmission mechanism and the housing are collectively called an electronic parking actuator. In electronic parking actuators, planetary gear transmission is usually used to complete the deceleration of the motor. Because of the small size, light weigh...

AI Technical Summary

Problems solved by technology

[0020] The technical problem to be solved by the present invention is that in the prior art, a belt drive is used between the motor and the planetary gear, and the distance between the motor shaft and the gear shaft is fixed by a rigid spacer. There are rigid spacers and the motor shaft, The inconsistency of the assembly of the main shaft of the planetary transmission mechanism, the axial non-parallel, and the rigid spacer are prone to deformation after being stressed; Due to technical problems such as large external influences and inconsistencies in the upper and lower positions of the gear shaft end, an electronic parking actuator applied to the braking system of a motor vehicle is provided.

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