The invention provides a four-wheel steering mechanism of a trailer; the mechanism comprises a frame and at least two groups of connecting cross bridges, the frame is arranged on the connecting cross bridges, two ends of each connecting cross bridge are connected with wheels through steering crank arms, front wheels are connected with a bogie through first steering crank arms, and the first steering crank arms of the front wheels are connected with one ends of steering arms through steering front pull rods. The other ends of the steering arms are connected with a second steering crank arm of the rear wheel through steering rear pull rods, and the middles of the steering arms are rotationally connected with the frame through a rotating shaft. When the front wheel steers, the front steering pull rods are driven to move back and forth, the front steering pull rods are connected with the rear steering pull rods through steering arms to enable the rear steering pull rods to move reversely to drive the rear wheel and the front wheel to achieve synchronous reverse steering so as to achieve the four-wheel synchronous steering function, and a rear steering balance pull rod is further arranged on the rear shaft to guarantee steering synchronism of the left wheel and the right wheel. Synchronous steering of four tires of the trailer is achieved, the turning radius is greatly reduced, vehicle controllability and flexibility are improved, and tire abrasion is reduced.

    本发明提供一种拖车四轮转向机构,包括车架和至少两组连接横桥,车架设在连接横桥上,连接横桥两端通过转向拐臂与车轮连接,前轮通过第一转向拐臂与转向架连接,前轮的第一转向拐臂通过转向前拉杆与转向臂一端连接,转向臂另一端通过转向后拉杆与后轮的第二转向拐臂连接,转向臂中部通过转动轴与车架转动连接。前轮转向时会带动转向前拉杆前后移动,转向前拉杆通过换向臂与转向后拉杆连接使转向后拉杆反向移动进而驱动后轮与前轮实现同步反向转向实现四轮同步转向功能,在后轴上还设有后转向平衡拉杆已保证左右两轮转向的同步性。实现拖车四个轮胎同步转向,大大缩小转弯半径提升车辆操控性、灵活性减少轮胎磨损。


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    Title :

    Four-wheel steering mechanism of trailer


    Additional title:

    一种拖车四轮转向机构


    Contributors:
    WEI PING (author) / WAN FENGXIAN (author) / DUAN HONGWEN (author) / XIONG JIACONG (author) / LI LIN (author) / YANG XIAOBO (author) / ZHANG FAYUN (author) / TIAN YE (author)

    Publication date :

    2021-05-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B60D Fahrzeugverbindungen , VEHICLE CONNECTIONS



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