Electromechanical braking device and system with biased transmission shaft of speed reducer and vehicle

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Electromechanical braking device and system with biased transmission shaft of speed reducer and vehicle

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MAO YAN / NI HUI

The invention provides an electronic mechanical braking device and system with a biased transmission shaft of a speed reducer and a vehicle. The electronic mechanical braking device is used for being fixedly connected with the braking calipers and driving the friction plates to brake the wheels. The electronic mechanical braking device comprises a braking motor and a speed reducer. The brake motor comprises a rotor and a stator. The speed reducer comprises a transmission shaft and a planetary gear set. The axis of the transmission shaft and the axis of the rotor are offset in the radial direction of the brake motor, the rotor is used for driving the transmission shaft to rotate around the axis of the rotor, the transmission shaft is used for driving the sun gear of the planetary gear set to rotate through the planetary gear of the planetary gear set, and the sun gear is used for driving the friction plate through the feeding mechanism. According to the electronic mechanical braking device, the rotor is used for forming a structure similar to a planet carrier in the planetary gear set of the speed reducer, integration of the braking motor and the speed reducer is achieved, the axial size of the electronic mechanical braking device is reduced, and on the premise that reliable braking of the electronic mechanical braking device is guaranteed, miniaturization of the electronic mechanical braking device is achieved.

本申请提供一种减速器传动轴偏置的电子机械制动装置、系统和一种车辆。电子机械制动装置用于固定连接制动卡钳并驱动摩擦片制动车轮。电子机械制动装置包括制动电机和减速器。制动电机包括转子和定子。减速器包括传动轴和行星齿轮组。沿制动电机的径向传动轴的轴线与转子的轴线相偏置，转子用于带动传动轴绕转子轴线转动，传动轴用于通过行星齿轮组的行星轮带动行星齿轮组的太阳轮旋转，太阳轮用于通过进给机构驱动摩擦片。本申请电子机械制动装置利用转子形成减速器行星齿轮组中类似行星架的结构，实现制动电机与减速器一体化集成，压缩了电子机械制动装置的轴向尺寸，在保证电子机械制动装置可靠制动的前提下，实现了电子机械制动装置的小型化。