The invention discloses a dual-mode electric power steering gear for a heavy-duty vehicle, which comprises a steering gear shell assembly, an input shaft and screw nut assembly, a side cover rocker arm shaft assembly, an adjusting support assembly, an upper cover assembly, a sensor support plate, a corner torque sensor, a belt transmission assembly, a planetary reducer assembly and a motor assembly. Power is transmitted to the input shaft and screw assembly through the planetary reducer assembly and the belt transmission assembly in sequence, the input shaft and screw nut assembly outputs torque and angular displacement through a sector shaft and outputs power assisting torque through an input shaft, and two control modes of angle position and torque power assisting are achieved. The scheme has the beneficial effects that according to the description of the scheme, the structure is simple, the design is reasonable, turbine and worm structures in a heavy circulating ball type dual-mode electric power steering gear are replaced by the planetary reducer, the belt gear and the like, the size is smaller, and the efficiency is improved.

    本申请公开了一种重型车用双模电动助力转向器,包括转向器壳体总成、输入轴与螺杆螺母总成、侧盖摇臂轴总成、调整支撑总成、上盖总成、传感器支撑板、转角转矩传感器、皮带传动总成、行星减速器总成和电机总成,其以电机总成为动力源,依次通过行星减速器总成、皮带传动总成将动力传递给输入轴与螺杆总成,输入轴与螺杆螺母总成通过齿扇轴输出转矩与角位移,通过输入轴输出助力转矩,其具有角度位置与转矩助力两种控制模式。本方案的有益效果可根据对上述方案的叙述得知,结构简单,设计合理,采用行星减速器和皮带齿轮等取代了重型循环球式双模电动动力转向器中的涡轮、蜗杆结构,拥有更小的体积,效率得到提高。


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    Title :

    Dual-mode electric power steering gear for heavy duty vehicle


    Additional title:

    一种重型车用双模电动助力转向器


    Contributors:
    YANG LIYU (author) / ZHANG YONG (author) / WANG CHENGLING (author) / WANG SHIKAI (author) / LI BIAO (author) / LIU FUQIANG (author) / LI YU (author) / YANG XIAOPENG (author) / LIU WUPENG (author) / WANG RAN (author)

    Publication date :

    2024-12-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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