The invention discloses an electric power steering gear for an automobile. The electric power steering gear comprises a shell assembly, an output shaft rotationally arranged in the shell assembly, a rack, a power-assisted gear connected with the output shaft and meshed with the rack, an input shaft coaxially arranged with the output shaft, a power-assisted motor, a worm connected with the power-assisted motor and a bevel gear arranged on the output shaft and meshed with the worm. The included angle between the axis of the worm and the axis of the bevel gear ranges from 81 degrees to 83 degrees, the worm is an involute worm, and the normal modulus of the worm is equal to the axial modulus of the bevel gear. According to the electric power steering gear for the automobile, the transmission mode formed by the worm and the bevel gear is adopted, and the electric power steering gear has the advantages of being large in transmission ratio, stable in transmission, large in bearing capacity and low in noise.

    本发明公开了一种汽车用电动助力转向器,包括壳体总成、可旋转的设置于壳体总成内的输出轴、齿条、与输出轴连接且与齿条啮合的助力齿轮、与输出轴同轴设置的输入轴、助力电机、与助力电机连接的蜗杆、设置于所述输出轴上且与所述蜗杆相啮合的斜齿轮,蜗杆的轴心线与斜齿轮的轴心线之间的夹角为81°~83°,蜗杆为渐开线蜗杆,蜗杆的法向模数与斜齿轮的轴向模数相等。本发明的汽车用电动助力转向器,采用蜗杆与斜齿轮组成的传动方式,具有传动比大、传动平稳、承载力大和噪音小的优点。


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    Titel :

    Electric power steering gear for automobile


    Weitere Titelangaben:

    汽车用电动助力转向器


    Beteiligte:
    ZHUANG XUEWEN (Autor:in) / ZHANG WEI (Autor:in) / GU CHANGFENG (Autor:in) / LI LIANXIANG (Autor:in) / WANG JING (Autor:in)

    Erscheinungsdatum :

    2021-06-29


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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