Electronic parking executing mechanism of vehicle braking system

Abstract

The invention discloses an electronic parking actuator of a vehicle braking system, which includes a transmission device and a brake caliper assembly. The transmission device includes a front shell and a rear shell, and the transmission device and the brake caliper body are connected by fixing bolts. , a DC motor is arranged under the inner side of the front housing, the DC motor is connected to a battery, and a synchronous belt transmission mechanism is installed on the output shaft of the DC motor. The involute small-tooth-difference planetary gear transmission mechanism is located between the front housing and the rear housing, and the involute small-tooth-difference planetary gear transmission mechanism and the front housing are connected through an internal gear seat. Compared with the traditional actuator of the parking brake system of the rear wheel of the vehicle, the present invention has the advantages of saving cab space, easy operation, labor-saving and stable parking, does not vary from person to person, prevents accidental release, and makes the parking brake safer and more reliable. , It is easy to adopt the advantages of intelligent control and integration of other functions.

Description

technical field [0001] The invention relates to an electronic parking actuator of a vehicle braking system. Background technique [0002] In the caliper-type electronic parking brake system, the motor provides power for the caliper-type parking actuator, the power is transmitted to the reduction mechanism through the transmission, and then the mechanical energy is transmitted to the caliper through the output shaft to achieve the parking effect. The center distance between the motor and the reduction mechanism needs to be a fixed value to ensure the output performance and stability of the transmission mechanism. [0003] Electronic parking actuator for vehicle braking system announced by the State Intellectual Property Office of China (application number: 2016203480518, announcement number: CN205632470, announcement date: 2016.10.12), including an upper shell, a lower shell, a motor, and an energy transmission mechanism and the deceleration mechanism, the motor, the energy ...

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Problems solved by technology

[0003] Electronic parking actuator for vehicle braking system announced by the State Intellectual Property Office of China (application number: 2016203480518, announcement number: CN205632470, announcement date: 2016.10.12), including an upper shell, a lower shell, a motor, and an energy transmission mechanism and the deceleration mechanism, the motor, the energy transmission mechanism and the deceleration mechanism are arranged in the inner cavity formed by the upper shell and the lower shell, the motor is connected with the deceleration mechanism through the energy transmission mechanism, the upper shell is provided with a center column of the upper shell, and the lower shell is The center hole of the lower shell is set corresponding to the position of the center column of the upper shell. Although the process requirements of this structure are relatively low and the production efficiency is improved, the energy conversion effect of the actuator is poor, which affects the driving brake and parking system. verb: move

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