The invention discloses a single-motor mechanism suitable for coaxial contra-rotating double propellers, and relates to the technical field of unmanned aerial vehicles, the single-motor mechanism comprises a base, a hollow main shaft is fixedly connected to the middle of the upper end face of the base, a rotor shell is rotatably connected to the hollow main shaft, and a stator coil assembly is arranged at the lower end of the hollow main shaft; a permanent magnet matched with the stator coil assembly is arranged on the inner wall of the rotor shell, a connecting rotating shaft is rotationally connected into the hollow main shaft, and a linkage rotor block is fixedly connected to the connecting rotating shaft. The single motor is adopted to drive the double propellers, the rotation directions of the double propellers are opposite, higher and more stable tension brought by reaction torque can be counteracted, the loading capacity of the unmanned aerial vehicle is greatly improved, meanwhile, due to the fact that double-propeller driving is achieved through the single motor, double motors do not need to be used for driving, arrangement of a control circuit is simpler, and cost is lower. Meanwhile, the problems that a dual-motor structure is large in weight and high in energy consumption are solved, and the cruising ability of the unmanned aerial vehicle is effectively improved.

    本发明公开了一种适用于同轴对转双桨的单电机机构,涉及无人机技术领域,包括底座,所述底座上端面中间固定连接有空心主轴,所述空心主轴上转动连接有转子外壳,所述空心主轴下端设有定子线圈组件,所述转子外壳的内壁设有与定子线圈组件相配的永磁体,所述空心主轴内转动连接有连接转轴,所述连接转轴上固定连接有联动转子块。本发明采用单电机驱动双桨,且双桨的旋转方向相反,可以抵消反扭矩带来更高更稳定的拉力,大大提高无人机的载荷能力,同时由于单电机实现双桨的驱动,无需使用双电机进行驱动,使得控制电路的布置更加简洁,同时避免了双电机结构重量大以及能耗高的问题,有效的提高了无人机的续航能力。


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    Title :

    Single-motor mechanism suitable for coaxial contra-rotating double propellers


    Additional title:

    一种适用于同轴对转双桨的单电机机构


    Contributors:
    ZHU JUN (author)

    Publication date :

    2025-04-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64U



    Contra-rotating propellers

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    Contra-rotating propellers

    Savikurki, J. | Tema Archive | 1988


    Contra-rotating propellers

    Taylor, J.L. | Engineering Index Backfile | 1941


    Contra-rotating propellers1

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