The invention relates to the technical field of automobile steering systems, and discloses a pure electric mechanical circulating ball steering gear for a commercial vehicle. The steering gear comprises an upper cover, and the bottom of the upper cover is fixedly connected with an upper shell. According to the pure electric mechanical circulating ball steering gear for a commercial vehicle, a high-power MR brushless direct current motor is electrified to rotate to drive a worm to rotate, a ball screw rod rotates under the combined action of the worm and a worm wheel, the ball screw rod drivesa ball screw nut to rotate, and therefore, a sector shaft rotates. According to the device, the traditional mode of rotating the sector shaft by using hydraulic oil is changed through a series of mechanical structures, so that the production cost and the energy waste of the steering gear are greatly reduced. The device is connected with other mechanical accessories in a mechanical form through thehigh-power MR brushless direct current motor, so that the device can still be used as a traditional mechanical circulating ball steering gear after a high-power controller fails, and normal and safesteering of a vehicle is guaranteed.

    本发明涉及汽车转向系统技术领域,且公开了一种商用车用纯电动机械循环球转向器,包括上盖,所述上盖的底部固定连接有上壳体。该商用车用纯电动机械循环球转向器,通过将大功率MR无刷直流电机通电转动带动蜗杆转动,滚珠丝杠螺杆在蜗杆和蜗轮的共同作用下转动,滚珠丝杠螺杆带动滚珠丝杠螺母转动,从而使得齿扇轴转动,该装置通过一系列的机械结构改变了传统使用液压油转动齿扇轴的方式,使得该转向器大大的降低生产成本和能源浪费的问题,且该装置通过大功率MR无刷直流电机与其他机械配件使用机械的形式相连接,使得在大功率控制器失效后仍然可以当做传统的机械循环球转向器使用,保证车辆正常以及安全转向。


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    Title :

    Pure electric mechanical circulating ball steering gear for commercial vehicle


    Additional title:

    一种商用车用纯电动机械循环球转向器


    Contributors:
    XIE JUNQING (author) / XIANG RUJIE (author) / ZHANG SHAOJIANG (author) / WANG FANGQI (author) / LI BING (author) / WANG SHUO (author)

    Publication date :

    2020-04-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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