A universal connecting device for a multi-propeller helicopter is characterized in that a lower universal joint fork of a universal joint is connected to the middle of a flat-plate-shaped lower mounting seat in a fastening manner, and an upper universal joint fork of the universal joint is connected to the middle of a flat-plate-shaped upper mounting seat in a fastening manner, namely, the universal joint is mounted between the upper mounting seat and the lower mounting seat, and a return compression spring is arranged between the upper mounting seat and the lower mounting seat; when the upper mounting base does not act, the lower mounting base and the upper mounting base are kept parallel through the reaction force of the return compression spring, the axis of the universal joint is perpendicular to the plane of the lower mounting base and the plane of the upper mounting base, the maximum inclination angle limiting circular ring is arranged on the periphery of the return compression spring, and the maximum inclination angle of the upper mounting base is limited through the maximum inclination angle limiting circular ring. The device is applied to connection of a propeller driving motor and a machine arm, so that blades of the fixed pitch propeller can swing up and down, and the alternating bending moment of the fixed pitch propeller with a horizontally arranged rotating surface is reduced; the method is applied to connection of a fixed-pitch propeller assembly and a fuselage, the inclination degree of the rotating face of a propeller is increased, and the fuselage does not incline along with the propeller.

    一种多螺旋桨直升机万向连接装置,在平板形的下安装座的中部紧固连接万向节的下万向节叉,在平板形的上安装座的中部紧固连接万向节的上万向节叉,即一个万向节安装在上下安装座之间,上下安装座之间设置回正压缩弹簧,在上安装座没有动作时,回正压缩弹簧的反抗力使下安装座和上安装座保持平行,万向节的轴线垂直于下安装座和上安装座平面,在回正压缩弹簧的外围设置限制最大倾斜角圆环,限制最大倾斜角圆环限制上安装座的最大倾斜角度,应用于螺旋桨驱动电机与机臂的连接,使定距螺旋桨的桨叶可以上下挥舞,减少旋转面水平设置的定距螺旋桨的交变弯矩;应用于定距螺旋桨组件与机身的连接,增大螺旋桨的旋转面的倾斜程度,而机身不跟随倾斜。


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    Titel :

    Universal connecting device of multi-propeller helicopter


    Weitere Titelangaben:

    多螺旋桨直升机万向连接装置


    Beteiligte:
    JIANG FUYU (Autor:in)

    Erscheinungsdatum :

    2022-04-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge



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