The invention discloses a steering gear box and a shell thereof, and relates to the technical field of power transmission, the steering gear box comprises a body and a supporting piece embedded in the inner surface of the body, the body is used for being arranged on the periphery of the steering gear box, the supporting piece is used for abutting against a lead screw nut assembly, the body is made of light metal, and the supporting piece is made of heavy metal. The lead screw nut assembly is meshed with the output shaft, when the output shaft outputs torque, the output shaft provides counter-acting force for the lead screw nut assembly, the lead screw nut assembly further abuts against the body, the body made of light metal reduces the overall weight of the steering gear box shell, and the supporting piece replaces the body to abut against the lead screw nut assembly. The heavy metal material improves the wear resistance and the stability of the supporting piece, the weight of the steering gear shell is greatly reduced on the premise that the practical performance of the steering gear shell is not affected, and compared with a common electric power steering gear, the weight of the steering gear is reduced by about 6 kg, and the requirements of users are met.

    本发明公开了方向机及其壳体,涉及动力传动技术领域,包括本体和镶嵌在本体内表面的支撑件,所述本体用于设置在方向机的外周,所述支撑件用于与丝杆螺母总成相抵靠,所述本体的材质为轻金属,所述支撑件的材质为重金属。丝杆螺母总成与输出轴啮合,当输出轴输出扭矩时,输出轴给丝杆螺母总成一个反作用力,使丝杆螺母总成进一步抵靠本体,轻金属材质的本体减轻了方向机壳体的整体重量,支撑件代替本体与丝杆螺母总成相抵靠,重金属材质增加了支撑件的耐磨性能和稳定性,使方向机壳体在不影响其实用性能的前提下,大大减少了自身重量,本实施例的方向机相比普通的电动助力方向机,降重6kg左右,满足用户的需求。


    Access

    Download


    Export, share and cite



    Title :

    Steering gear box and shell thereof


    Additional title:

    方向机及其壳体


    Contributors:
    ZHU XINGWANG (author) / WAN MINWEI (author) / ZHU SHENGFENG (author) / YU ZHONGCHAO (author) / REN PEI (author) / LEI HAO (author)

    Publication date :

    2021-05-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



    Lightweight steering gear shell

    LIU HAILONG | European Patent Office | 2021

    Free access

    Shell assembly of steering gear, steering gear and vehicle

    HOU JIANYONG | European Patent Office | 2023

    Free access

    STEERING GEAR SHELL, AUTOMOBILE STEERING GEAR, FRONT SUBFRAME, AND AUTOMOBILE

    ZHANG DALEI / WANG ZHENGANG / LUAN AIDONG et al. | European Patent Office | 2024

    Free access

    Plastic shell of steering gear

    XIA YUJIE / CAO CHUNLIN / XU FENG et al. | European Patent Office | 2020

    Free access

    Vehicle and gear rack steering gear thereof

    LYU ZHENWEI / SHI SHUAISHUAI / FAN MENGJIE et al. | European Patent Office | 2020

    Free access