The invention relates to a rear wheel steering gear assembly and a vehicle. The rear wheel steering gear assembly comprises a shell, a trapezoidal nut lead screw assembly, a ball bearing and a large belt wheel. The trapezoidal nut lead screw assembly is arranged in a cavity of the shell, is coaxial with the shell and consists of a lead screw main shaft, a lead screw nut and a dustproof sealing cover, the motor is fixed on the shell, and a large belt wheel is driven by a synchronous belt to transmit the torque of the motor to the lead screw nut so as to drive the lead screw nut to rotate; the ball bearing can achieve rotation movement of the screw nut relative to the shell, the power transmission path is that the motor drives the large belt wheel to drive the screw nut to rotate, the rotation movement of the screw nut is converted into linear movement of the screw spindle, and then steering of the rear wheel is achieved. According to the rear wheel steering gear assembly and the vehicle, the structure is simpler, the assembly technology is simplified, the lead precision of the lead screw can be improved, the noise problem after abrasion and durability can be greatly solved, the bearing capacity is further improved, and misuse loads which can be borne can reach 60 kN.

    本发明涉及一种后轮转向器总成及车辆,后轮转向器总成包括壳体、梯形螺母丝杠总成、球轴承和大带轮;梯形螺母丝杠总成置于壳体空腔中,与壳体同轴布置,由丝杠主轴、丝杠螺母和防尘密封罩构成,电机固定在壳体上,并通过同步带驱动大带轮将电机的扭矩传递到丝杠螺母上,带动丝杆螺母发生旋转运动;球轴承可实现杆螺母相对于壳体旋转运动,动力传递路径为电机驱动大带轮带动丝杠螺母旋转,丝杠螺母的旋转运动转换为丝杠主轴的直线运动,进而实现后轮转向。本发明后轮转向器总成及车辆结构更简单,简化了装配工艺,可提高丝杠的导程精度,能够极大改善磨损耐久后噪音问题,承载能力进一步提高,实现可承受误用载荷高达60kN。


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    Title :

    Rear wheel steering gear assembly and vehicle


    Additional title:

    一种后轮转向器总成及车辆


    Contributors:
    ZHANG YANG (author) / CHANG YUETONG (author) / XU JIABIN (author) / WANG NIANQIANG (author) / LIANG YOUTAO (author)

    Publication date :

    2024-03-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge




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