The invention provides a folding rotor wing of a coaxial unmanned helicopter. The folding rotor wing comprises a variable-pitch propeller hub, a folding propeller clamp assembly, blades, a torsional spring and a centrifugal pendulum limiter, and the folding propeller clamp assembly is rotationally connected to the end portion of the variable-pitch propeller hub through a flapping bolt and a flapping bearing; the blades are connected to the end portion of the folding paddle clamp assembly; the flapping bolt is sleeved with the torsional spring, the upper torsional arm of the torsional spring stretches into the through hole of the variable-pitch propeller hub, and the lower torsional arm of the torsional spring abuts against the bottom of the folding propeller clamp assembly; and the centrifugal pendulum limiter is movably connected to the variable-pitch propeller hub through a rotating shaft, and after the folding propeller clamp assembly is unfolded, the centrifugal pendulum limiter isconnected to the end portion of the folding propeller clamp assembly in a clamped mode. The rotor wing avoids the blade beating phenomenon, the operation stability is high, the safety is high, and the installation is convenient.

    本申请提供一种共轴无人直升机折叠旋翼,包括:变距桨毂、折叠桨夹组件、桨叶、扭簧和离心摆限动器,折叠桨夹组件通过挥舞螺栓和挥舞轴承转动连接在变距桨毂的端部;桨叶连接在折叠桨夹组件的端部;扭簧套设在挥舞螺栓上,扭簧的上扭臂伸入变距桨毂的通孔内,扭簧的下扭臂抵接在折叠桨夹组件的底部;离心摆限动器通过转轴活动连接在变距桨毂上,当折叠桨夹组件展开后,其卡接在折叠桨夹组件的端部。本申请旋翼不会出现打桨现象,运行的稳定性高,安全性高,安装方便。


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    Title :

    Folding rotor wing of coaxial unmanned helicopter


    Additional title:

    一种共轴无人直升机折叠旋翼


    Contributors:
    MENG CHENG (author) / HAN SHUHONG (author) / YANG SHITAO (author) / SUN TAO (author)

    Publication date :

    2020-04-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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