The invention discloses an electric parking actuator applied to a drum brake. The electric parking actuator comprises an upper shell and a lower shell, the upper portion of the inner surface of the lower shell is rotationally connected with a worm gear nut assembly through a bearing, the interior of the worm gear nut assembly is in threaded connection with a lead screw, and a steel wire inhaul cable is riveted to the bottom end of the lead screw; a sealing cover is arranged at the bottom end of the lower shell and located on the outer surface of the steel wire inhaul cable, a motor is installed in the upper shell, the output end of the motor is fixedly connected with a worm, one end of the worm rotates in the upper shell through a sliding bearing, and the surface of the worm is meshed with the surface of a worm gear nut assembly. Through cooperation of the motor, the worm, the worm gear nut assembly and the lead screw, the steel wire inhaul cable can be driven to complete the parking locking function, the motor rotates reversely to complete the parking unlocking function, and it can be guaranteed that parking is safe and reliable.

    本发明公开了一种应用于鼓式制动器的电动驻车执行器,包括上壳体和下壳体,所述下壳体内表面的上方通过轴承转动连接有蜗轮螺母组件,所述蜗轮螺母组件的内部螺纹连接有丝杆,所述丝杆的底端铆合有钢丝拉索,所述下壳体的底端且位于钢丝拉索的外表面设置有密封盖,所述上壳体的内部安装有电机,所述电机的输出端固定连接有蜗杆,所述蜗杆的一端通过滑动轴承转动在上壳体的内部,且蜗杆的表面与蜗轮螺母组件的表面相啮合,通过电机、蜗杆、蜗轮螺母组件和丝杆之间的配合可以带动钢丝拉索完成驻车锁止功能,电机反转完成驻车解锁功能,可以保证驻车安全可靠。


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    Titel :

    Electric parking actuator applied to drum brake


    Weitere Titelangaben:

    一种应用于鼓式制动器的电动驻车执行器


    Beteiligte:
    SU YONGSHENG (Autor:in) / WANG XIAOHUI (Autor:in) / HUANG JIAN (Autor:in)

    Erscheinungsdatum :

    2021-08-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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