The invention relates to the field of semitrailer axle lifting systems, and discloses an axle lifting mechanism of a semitrailer, which comprises a frame, three groups of suspensions, three groups of axle shafts and tires matched with the axle shafts, a lower wing plate is fixedly arranged at the bottom of the rear end of the frame, and web plates are fixedly arranged on two sides of the frame. Two sets of pin shaft fixing plates are fixedly arranged at the position, close to the rear end, of the lower wing plate, the outer side of each pin shaft fixing plate is fixedly connected with a pin shaft, the outer end of each pin shaft is rotationally sleeved with a supporting plate, a plate spring with a pin shaft fixing hole is arranged between the supporting plates, the plate spring with the pin shaft fixing hole is fixed to the axle shaft at the rearmost end, and an adjusting arm seat is further arranged on the axle shaft. A frame cross beam is fixedly arranged on one side, close to the rear portion, of the web plate, a control air cylinder is arranged on the frame cross beam, and the movable end of the control air cylinder is rotationally connected to the adjusting arm seat. According to the invention, the telescopic motion of the control cylinder is controlled to drive the bridge shaft to perform elliptical swing by taking the pin shaft as the circle center, so that the lifting and descending of the bridge shaft are completed.

    本发明涉及半挂车桥提升系统领域,公开了一种半挂车的车桥提升机构,包括车架、三组悬架、三组桥轴以及和桥轴配套的轮胎,车架的后端底部固定设置有下翼板,车架的两侧均固定设置有腹板,下翼板靠后端位置固定设置有两组销轴固定板,每块销轴固定板外侧均固定连接有销轴,每个销轴的外端均转动套设有支撑板,支撑板之间设置有带销轴固定孔板簧,带销轴固定孔板簧定在最后端的桥轴上,桥轴上还设置有调整臂座,腹板一侧靠后部固定设置有车架横梁,车架横梁上设置有控制气缸,控制气缸的活动端转动连接在调整臂座上。本发明中,通过操控控制气缸的伸缩运动来带动桥轴以销轴为圆心进行椭圆摆动,从而完成桥轴提升和下降。


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    Title :

    Axle lifting mechanism of semitrailer


    Additional title:

    一种半挂车的车桥提升机构


    Contributors:
    WANG SHAOLEI (author) / WANG DAJUN (author) / WANG ZHAOYANG (author)

    Publication date :

    2023-07-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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