The invention discloses a pure electric double-main-cylinder recirculating ball steering gear for a medium and heavy truck commercial vehicle, which comprises a double-cylinder shell, two groups of steering screw outer raceways and steering nut inner raceways are assembled to form a ball screw transmission pair, and a non-contact torque amp is arranged on a steering screw shaft connected with an input shaft; the angle sensor, an inner hole of the first steering screw and the outer circle of the torsion bar are pressed in an interference mode, and the torsion bar penetrates through an inner hole of the input shaft and is fixed through a cylindrical pin to form rigid connection. The double motors are adopted as power sources of the steering gear, and the output torque is increased through a double-worm-gear speed reduction structure. The shell is of a double-main-cylinder structure and is provided with two gear rack transmission pairs and two ball screw transmission pairs. Load and stress borne by a ball screw transmission pair can be reduced, the service life of the steering gear assembly is prolonged, and the output torque and the aligning capacity of the steering gear assembly are improved. The intelligent and electric requirements of new energy automobiles can be met, and the output torque can be increased, so that the use requirements of medium and heavy trucks are met.

    本发明公开了一种中重卡商用车用纯电动双主缸循环球转向器,包括双缸壳体,两组转向螺杆外滚道与转向螺母内滚道装配起来形成滚珠丝杠传动副,与输入轴连接的转向螺杆轴上装有非接触式扭矩&角度传感器,第一转向螺杆内孔与扭杆外圆通过过盈压装,扭杆穿过输入轴内孔,通过圆柱销固定形成刚性连接。通过采用双电机作为转向器的动力源,双蜗轮蜗杆减速结构,增加输出扭矩;壳体为双主缸结构,并有两组齿轮齿条传动副和两组滚珠丝杠传动副;可以降低滚珠丝杠传动副承受的载荷和应力,增加转向器总成的使用寿命和转向器总成输出扭矩以及回正能力;既能满足新能源汽车的智能化、电动化,又能增加输出扭矩从而满足中重卡的使用要求。


    Access

    Download


    Export, share and cite



    Title :

    Pure electric double-main-cylinder circulating ball steering gear for medium and heavy truck commercial vehicle


    Additional title:

    一种中重卡商用车用纯电动双主缸循环球转向器


    Contributors:
    WANG PENG (author) / KIM SI DUK (author) / RAO ZHENXING (author) / ZHANG QIAN (author) / XUAN JIANFENG (author)

    Publication date :

    2024-07-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



    Pure electric mechanical circulating ball steering gear for commercial vehicle

    XIE JUNQING / XIANG RUJIE / ZHANG SHAOJIANG et al. | European Patent Office | 2020

    Free access

    Electric recirculating ball steering gear assembly for medium-truck commercial vehicle

    JI YUANQIANG / FU ZAOQING / ZHANG KEWEN et al. | European Patent Office | 2020

    Free access

    Pure electric power steering gear for heavy commercial vehicle

    LI XIAOMING / KONG ZHENBIN / HOU XUEWEI et al. | European Patent Office | 2021

    Free access

    Double-motor circulating ball type steering system of heavy commercial vehicle

    WANG XUANYAO / XU JINPENG | European Patent Office | 2022

    Free access

    Circulating ball type electric power steering gear

    ZHANG YINGZHEN / LYU BIN / CHENG WEIZHI et al. | European Patent Office | 2023

    Free access