The invention discloses a variable-pitch device for an unmanned aerial vehicle and the unmanned aerial vehicle. The variable-pitch device comprises a driver, a fixing ring, a rotating ring and variable-pitch pull rods, wherein the driver comprises a first steering engine and a second steering engine; a first connecting support, a second connecting support and a third connecting support are arranged on the fixing ring; the first connecting support is connected with a rocker arm of the first steering engine through a first pull rod; the second connecting support is connected with a rocker arm ofthe second steering engine through a second pull rod; a sliding block is fixedly arranged on the third connecting support, a vertically-arranged sliding groove is formed in a rack of the unmanned aerial vehicle, and the sliding block is in sliding fit with the sliding groove; the rotating ring is arranged on the fixing ring in a fixed-axis rotating mode in a sleeving mode; and the two variable-pitch pull rods are symmetrically arranged on the outer side of the rotating ring, and one end of each variable-pitch pull rod is hinged to the outer edge of the rotating ring. According to the variable-pitch device, periodic pitch changing can be achieved only by controlling the rocker arms of the two steering engines to rotate, the driving mode and the control logic are simplified, and meanwhile,the stability of pitch changing is improved.

    本发明公开了一种用于无人机的变距装置及无人机,包括驱动器、固定环、旋转环和变距拉杆;驱动器包括第一舵机和第二舵机;固定环上设置有第一连接支座、第二连接支座和第三连接支座;第一连接支座通过第一拉杆与第一舵机的摇臂连接;第二连接支座通过第二拉杆与第二舵机的摇臂连接;第三连接支座上固定设置有滑块,无人机的机架上设置有竖直布置的滑槽,滑块与滑槽滑动配合;旋转环以定轴转动的方式套设在固定环上;变距拉杆的数量为两个,且对称布置于旋转环的外侧,变距拉杆的一端与旋转环的外沿铰接。该变距装置仅需控制两个舵机的摇臂转动即可实现周期性变距,驱动方式和控制逻辑得到简化,同时提升了变距的稳定性。


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    Title :

    Variable-pitch device for unmanned aerial vehicle and unmanned aerial vehicle


    Additional title:

    一种用于无人机的变距装置及无人机


    Contributors:
    CHEN MINGFEI (author) / JIANG WENHUI (author) / CONG CHUANGCHUANG (author) / YAN ZHIMIN (author) / ZHANG JIANJUN (author) / JI SHIYAO (author)

    Publication date :

    2021-03-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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