The invention belongs to the field of aircraft control systems, and discloses a bidirectional rigidity-adjustable dead zone structure of an aviation joystick, which can realize that when the joystick is at a zero position, the joystick does not generate displacement along with the change of acting force within a certain load range, and the load range can be adjusted. The device structurally comprises a base, a gear shaft, a cylindrical spiral torsion spring, a limiting screw, a gear shaft supporting seat, a dead zone adjusting plate and the like. In the installation process of the structure, pre-tightening force is applied to the cylindrical spiral torsion spring through the fan-shaped groove, when a pilot applies a load to the control lever, effective displacement of the control lever can be generated only by overcoming the pre-tightening force of the cylindrical spiral torsion spring firstly, and therefore a rigidity dead zone is achieved. By changing the relative positions of the fan-shaped grooves, the rigidity dead zone range can be adjusted. According to the invention, more humanized operation experience can be provided for pilots, and the range of the rigidity dead zone can be adjusted according to the requirements of different pilots.

    本发明属于飞机操纵系统领域,公开了一种航空操纵杆双向可调节刚度死区结构,能够实现操纵杆处于零位处时,在一定载荷范围内操纵杆不随作用力的改变而产生位移,并且载荷范围能够调节。本发明的结构包括底座、齿轮轴、圆柱螺旋扭转弹簧、限位螺钉、齿轮轴支撑座以及死区调节板等。本发明的结构在安装过程中,通过扇形槽给圆柱螺旋扭转弹簧施加预紧力,当飞行员对操纵杆施加载荷时,需要先克服圆柱螺旋扭转弹簧的预紧力,才能够产生操纵杆的有效位移,从而实现刚度死区。通过改变扇形槽相对位置,能够实现刚度死区范围的调节。本发明能够给飞行员更加人性化的操纵体验,并且可以根据不同飞行员的要求,调节刚度死区的范围。


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    Title :

    Bidirectional rigidity-adjustable dead zone structure of aviation joystick


    Additional title:

    一种航空操纵杆双向可调节刚度死区结构


    Contributors:
    ZHANG CHENG (author) / YANG LE (author) / YANG KAI (author)

    Publication date :

    2023-08-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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