The invention relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle propeller with an emergency braking function. The unmanned aerial vehicle propeller comprises a power shaft, an electromagnetic coil is fixedly connected to the inner wall of the power shaft, electromagnets are fixedly connected to the inner wall of the power shaft, magnetic blocks are slidably connected to the inner wall of the power shaft, limiting rods are fixedly connected to the outer sides of the magnetic blocks, an annular magnet is movably connected to the outer side of the power shaft, an outer rotating shaft is fixedly connected to the outer side of the annular magnet, propeller blades are movably connected to the outer side of the outer rotating shaft, and grooves are formed in the inner wall of the annular magnet. According to the unmanned aerial vehicle propeller with the emergency braking function, after the electromagnetic coil in the power shaft is poweredon, springs on the inner sides of the limiting rods are in the state of original length, rotation of the propeller is achieved through the principle of magnetic levitation, the constraint of a transmission motor is broken through, the energy utilization rate is increased, energy conservation and environmental protection are achieved, and the service life of the propeller is prolonged.

    本发明涉及无人机技术领域,且公开了一种具有紧急制动功能的无人机螺旋桨,包括动力轴,所述动力轴的内壁固定连接有电磁线圈,所述动力轴的内壁固定连接有电磁铁,所述动力轴的内壁滑动连接有磁块,所述磁块的外侧固定连接有限位杆,所述动力轴的外侧活动连接有环形磁铁,所述环形磁铁的外侧固定连接有外转轴,所述外转轴的外侧活动连接有螺旋桨叶,所述环形磁铁的内壁开设有凹槽。该具有紧急制动功能的无人机螺旋桨,通过动力轴内的电磁线圈通电,限位杆内侧的弹簧处于原长的状态,利用磁悬浮的原理实现了螺旋桨的转动,打破了传动电机的束缚,提高了能源的利用率,节能环保,增加了螺旋桨的使用寿命。


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    Title :

    Unmanned aerial vehicle propeller with emergency braking function


    Additional title:

    一种具有紧急制动功能的无人机螺旋桨


    Contributors:
    QI WEIWEI (author)

    Publication date :

    2020-12-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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