The invention relates to a parking braking executing mechanism for an electronic mechanical braking device, and belongs to the technical field of traffic vehicles. The mechanism comprises a ratchet wheel coaxial with rotating power and a lever-shaped pawl with the middle hinged, one end of a pawl tip of the pawl tends to be meshed with the ratchet wheel, and one end, far away from the pawl tip, of the pawl is provided with a lifting limiting shaft in a penetrating mode through a limiting hole. The limiting shaft is provided with a large-diameter section matched with the diameter of the maximum inscribed circle of the pawl limiting hole and a small-diameter section extending out of the transition section. When the limiting shaft is lifted, the limiting hole of the pawl is sleeved on the large-diameter section, and the pawl tip is positioned at a parking release position for overcoming the tendency force to be separated from the ratchet wheel; when the limiting shaft descends, the limiting hole of the pawl surrounds the small-diameter section, and the pawl tip is located at the parking braking position meshed with the ratchet wheel under the action of the tendency force. The device is simple in structure and quick and reliable in action.

    本发明涉及一种电子机械制动装置用驻车制动执行机构,属于交通车辆技术领域。该机构包括与旋转动力同轴的棘轮,以及中部被铰装的杠杆状棘爪,棘爪的爪尖一端趋向与棘轮啮合,其远离爪尖的一端通过限位孔穿装可升降的限位轴;限位轴具有与棘爪限位孔最大内切圆直径相配的大径段以及经过渡段延伸出的小径段。当限位轴升起时,棘爪的限位孔套装于大径段,爪尖处于克服趋向力与棘轮脱开的驻车释放位置;当限位轴降下时,棘爪的限位孔环绕于小径段,爪尖处于在趋向力作用下与棘轮啮合的驻车制动位置。采用本发明结构简单、动作快捷可靠。


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    Title :

    Parking braking executing mechanism for electronic mechanical braking device


    Additional title:

    一种电子机械制动装置用驻车制动执行机构


    Contributors:
    ZHANG YUCHEN (author) / ZENG LIANGBIN (author) / ZHU MIN (author) / QIAN FEIFEI (author) / PAN LICHENG (author)

    Publication date :

    2023-12-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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