The invention discloses a quick folding and unfolding mechanism for a rotor wing. The quick folding and unfolding mechanism comprises a bottom plate, a rotating plate, an arc-shaped elastic metal sheet and a driving mechanism, a rotating plate is rotationally arranged on the bottom plate through a first rotating shaft, and the rotating plate rotates on the bottom plate to achieve folding and unfolding. Two ends of the arc-shaped elastic metal sheet are rotationally arranged on the bottom plate and the rotating plate through a second rotating shaft and a third rotating shaft respectively; the arc-shaped elastic metal sheet provides an energy barrier for maintaining the stable form through elastic force when the rotating plate is in the folded and unfolded form; the driving mechanism comprises a temperature control memory spring arranged between the bottom plate and the rotating plate and a power supply module for providing heat for the bottom plate and the rotating plate; the temperature control memory spring is shortened after being heated, the rotating plate is driven to rotate through force generated by shortening, and the temperature control memory spring comprises a folding spring and an unfolding spring; according to the invention, the bistable structure design is adopted, the folding and unfolding two stable states can be switched, the required space is small, and the weight is light.

    本发明公开了一种旋翼快速折展机构,包括底板、旋转板、弧形弹性金属片和驱动机构;底板上通过第一转轴转动设置有旋转板,旋转板在底板上的转动实现折叠和展开;弧形弹性金属片的两端通过第二转轴和第三转轴分别转动设置于底板和旋转板;且弧形弹性金属片在旋转板折叠和展开形态下通过弹力提供维持形态稳定的能垒;驱动机构包括设置于底板和旋转板间的温控记忆弹簧和为它们提供热量的供电模块;温控记忆弹簧加热后缩短,通过缩短产生的力驱动旋转板旋转,其包括折叠弹簧和展开弹簧;本发明不仅具有双稳态的结构设计,还可以在折叠与展开两个稳定状态之间切换,需要空间小,重量轻。


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    Title :

    Rotor wing rapid folding and unfolding mechanism


    Additional title:

    一种旋翼快速折展机构


    Contributors:
    ZHOU YANMIN (author) / HAN YUXUAN (author) / JIANG YONGKANG (author) / LI JUNJIN (author) / HE BIN (author)

    Publication date :

    2025-04-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64U



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