The invention provides a variable-pitch quadrotor unmanned aerial vehicle. The variable-pitch quadrotor unmanned aerial vehicle provided by the invention comprises a variable-pitch module and a vehicle body module. The variable-pitch module comprises a top connecting block, a variable-pitch propeller, a bearing, a loading frame, a connecting column, a hollow shaft brushless motor, an anti-collision net, a transmission shaft, a gear and a steering engine; and the vehicle body module comprises a central holder and vehicle arms. Compared with most quadrotor unmanned aerial vehicles, by using thevariable-pitch quadrotor unmanned aerial vehicle of the invention, a variable pitch device is additionally arranged, the flight attitude of the unmanned aerial vehicle can be adjusted by changing a propeller pitch and the motor rotating speed at the same time, the expected tension of a user is achieved by adjusting the propeller pitch and the motor rotating speed, meanwhile, the power consumptionof the unmanned aerial vehicle is reduced, and when a certain wing of the unmanned aerial vehicle fails, the pitch of a pair of diagonal propellers can be changed to ensure the balance of a momentum moment so that the unmanned aerial vehicle can continuously and normally fly, the reliability of the unmanned aerial vehicle is improved, more complex tasks can be executed, the maneuvering characteristics of the unmanned aerial vehicle are enhanced, and the practical value of the unmanned aerial vehicle is greatly enhanced.

    本发明提供了一种可变桨距四旋翼无人机,本申请提供的一种可变桨距四旋翼无人机包括:可变桨距模块、机体模块;可变桨距模块包括:顶部连接块、可变桨距螺旋桨、轴承、载重框架、连接柱、空心轴无刷电机、防撞网、传动轴、齿轮、舵机;机体模块包括:中心云台、机臂。本发明相比于大多数的四旋翼无人机,加装了可变桨距装置,可同时通过改变螺旋桨桨距以及电机转速调整无人机飞行姿态,通过调整螺旋桨桨距以及电机转速在实现使用者期望拉力的同时,降低无人机功耗,且当无人机某一机翼失灵时,其可通过改变一对对角螺旋桨桨距以保证其动量矩平衡,使其能继续正常飞行,使无人机可靠性提高,能够执行更加复杂的任务,增强了无人机的机动性能,大幅增强无人机的实用价值。


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    Title :

    Variable-pitch quadrotor unmanned aerial vehicle


    Additional title:

    可变桨距四旋翼无人机


    Contributors:
    WANG ZIYI (author) / CHEN WENJUAN (author) / ZENG ZHOUJIE (author) / QIU HAOQIAN (author) / YU WEN (author) / LIU BING (author)

    Publication date :

    2021-03-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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