The invention discloses a coaxial propeller folding mechanism, a coaxial unmanned aerial vehicle and a propeller unfolding and folding control method. The technical problem that in a coaxial unmanned aerial vehicle in the prior art, a folding propeller mechanism needs to be manually installed or unfolded by ground personnel is solved. The coaxial propeller folding mechanism comprises more than two groups of rotating units which are sequentially arranged from top to bottom, and the more than two groups of rotating units are coaxially arranged; each rotating unit comprises a rotating driving device, a propeller hub, a propeller clamp and a rotor wing blade, the rotating center of the propeller hub is fixedly connected with the torque output end of the rotating driving device, and the rotor wing blade is hinged to the free end of the propeller hub through the propeller clamp; the propeller hubs of more than one group of rotating units located at the lower part comprise at least two rod sections which are hinged in sequence, and one rod section is provided with an elastic piece. The rotor wing blades can be automatically and repeatedly opened and closed, and after the rotor wing blade spositioned at the upper part are folded, a space for folding and storing the rotor wing blades at the lower part can be reserved, so that the two propellers are ensured not to interfere with each other.

    本申请公开了一种共轴折桨机构、共轴无人机及螺旋桨开折控制方法,解决现有技术的共轴无人机所存在的需要地面人员手动安装或打开折叠螺旋桨机构的技术问题。共轴折桨机构包括从上至下依次设置的2组以上转动单元,2组以上转动单元共轴设置;各转动单元均包括转动驱动装置、桨毂、桨夹和旋翼叶片,桨毂的转动中心与转动驱动装置的扭矩输出端固定连接,旋翼叶片通过桨夹铰接安装于桨毂的自由端;位于下方的1组以上转动单元的桨毂包括至少两段依次铰接的杆段,其中一段杆段上设置有弹性件。该旋翼叶片能够自动、反复地开桨和收桨,且位于上方的旋翼叶片折桨后能够留出下方旋翼叶片折叠收纳的空间,以此保证两桨不互相干涉。


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    Titel :

    Coaxial propeller folding mechanism, coaxial unmanned aerial vehicle and propeller unfolding and folding control method


    Weitere Titelangaben:

    一种共轴折桨机构、共轴无人机及螺旋桨开折控制方法


    Beteiligte:
    LI JIAN (Autor:in) / LIU YUHUA (Autor:in)

    Erscheinungsdatum :

    2021-11-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge




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