The invention relates to an angle limiting device of a steer-by-wire system, which is characterized in that a screw rod shaft can be rotatably sleeved in a limiting shell along a central shaft, a connecting piece comprises a steering wheel output shaft connecting part and a screw rod shaft connecting part which are of an integrated structure, and the connecting piece is fastened and connected withthe screw rod shaft through the screw rod shaft connecting part; the limiting sliding sleeve is arranged on the lead screw shaft in a matched and sleeved mode through a thread structure, kidney-shaped grooves are formed in the two opposite sides of the limiting sliding sleeve in the axial direction respectively, limiting bolts are installed on the two opposite sides of the limiting shell respectively, and the shaft ends of the limiting bolts on the two sides are inserted into the kidney-shaped grooves in the two sides of the limiting sliding sleeve respectively. The lead screw shaft rotates to drive the limiting sliding sleeve to move front and back, so that the front and rear ends of the kidney-shaped groove make contact with the limiting bolts to form limiting to limit the rotating angle of the steering wheel. The rotation angle of the steering wheel is limited after the steer-by-wire system is powered off, the purpose of protecting the clock spring is achieved, and the clock springis prevented from being broken due to the fact that the rotation angle of the steering wheel exceeds the limit.

    本发明涉及一种线控转向系统角度限位装置,丝杆轴可沿中心轴转动地装套在限位壳体中,连接件包括一体结构的方向盘输出轴连接部和丝杆轴连接部,连接件通过丝杆轴连接部与丝杆轴紧固连接,限位滑套通过螺牙结构配合装套在丝杆轴上,限位滑套的相对两侧分别沿轴向开设有腰形槽,限位壳体的相对两侧分别安装有限位螺栓,两侧的限位螺栓的轴端分别插入到限位滑套两侧的腰形槽中,通过丝杆轴转动带动限位滑套前后移动,使得腰形槽前后两端分别与限位螺栓接触形成限位对方向盘的旋转角度进行限位。本发明实现线控转向系统下电后对方向盘转动角度的限制,达到保护时钟弹簧的目的,避免时钟弹簧因方向盘旋转角度超限而发生断裂。


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    Title :

    Angle limiting device of steer-by-wire system


    Additional title:

    一种线控转向系统角度限位装置


    Contributors:
    CHEN CHAO (author) / ZHANG ZHIRUI (author) / ZHENG HONGYUN (author)

    Publication date :

    2021-01-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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