The invention belongs to the field of aircraft control systems, and discloses a bidirectional rigidity-adjustable dead zone implementation structure of an aviation control lever, which can realize that the control lever does not generate displacement along with the change of acting force within a certain load range when the control lever is positioned at a zero position, and the load range can beadjusted. 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. According to the structure, in the installation process, pre-tightening force is applied to the cylindrical spiral torsion spring through the fan-shaped groove, when a pilot applies load to the operating lever, effective displacement of the operating lever can be generated only by overcoming the pre-tightening force of the cylindrical spiral torsion spring, 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 control experience can be provided for pilots, and the range of a 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实现结构,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 implementation structure of aviation operating lever


    Additional title:

    一种航空操纵杆双向可调节刚度死区实现结构


    Contributors:
    ZHANG CHENG (author) / YANG LE (author) / XU LILIN (author)

    Publication date :

    2021-03-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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