The invention discloses a multi-section blade capable of freely adjusting the pitch, which comprises a fixed end, a blade root section, a first flexible section, a middle section, a second flexible section, a blade tip section and a rigid rod which are connected in sequence, and further comprises an adjusting module and N bearings, and the adjusting module comprises M1 + M2 + M3 adjusting units; the adjusting unit comprises an electromagnetic coil and a magnet exciting coil. The rigid rod is arranged in a beam of the paddle, one end of the rigid rod is fixedly connected with the fixed end, and the other end of the rigid rod sequentially penetrates through the paddle root section, the first flexible section, the middle section and the second flexible section and then extends into the paddle tip section. The paddle root section, the middle section and the paddle tip section are connected through the adjusting module, the N bearings and the rigid rod. According to the invention, the structure is simple, the electromagnetic torque generated by the corresponding excitation coil group is changed by adjusting the power of each driving coil, and the adjustment of the rotor total pitch and the transverse and longitudinal periodic pitch change of the automatic inclinator of the rotor can be realized.

    本发明公开了一种可自由调整桨距的多段桨叶,包括依次相连的固定端、桨根段、第一柔性段、中间段、第二柔性段、桨尖段、刚性杆,此外还包含调节模块和N个轴承,调节模块包含M1+M2+M3个调节单元;所述调节单元包含电磁线圈和励磁线圈。刚性杆设置在桨叶的梁内,一端和所述固定端固连,另一端依次穿过桨根段、第一柔性段、中间段、第二柔性段后伸入至桨尖段内。桨根段、中间段、桨尖段通过调节模块、N个轴承和刚性杆相连。本发明结构简单,调节各个驱动线圈的功率大小来改变其对应的励磁线圈组产生的电磁扭矩,能够实现旋翼的自动倾斜器的调整旋翼总距和横纵向周期变距。


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    Title :

    Multi-section blade capable of freely adjusting pitch


    Additional title:

    一种可自由调整桨距的多段桨叶


    Contributors:
    CHEN JIA (author) / LIU YONG (author) / LUO ZHENGQING (author)

    Publication date :

    2025-05-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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