The embodiment of the invention provides a fixed-pitch propeller mechanism and an unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicles. The fixed-pitch propeller mechanism comprises a propeller clamp mechanism and at least two blades, the propeller clamp mechanism defines a rotating axis, each blade is rotatably connected to the propeller clamp mechanism around an axis parallel to the rotating axis, and each blade can swing relative to the propeller clamp mechanism in the extending direction of the rotating axis. The paddle can swing relative to the paddle clamp mechanism in the extending direction of the rotating axis, so that the energy of self vibration of the paddle is partially converted into swing amplitude, the energy of vibration is converted into potential energy of the swing amplitude, pneumatic unbalance generated by speed is eliminated, self vibration of the paddle is reduced, and the service life of the paddle is prolonged. According to the fixed-pitch propeller mechanism, the blades are rotatably connected to the propeller clamp mechanism around the axis parallel to the rotating axis, the influence of Coriolis force is eliminated, bending or fatigue fracture of the roots of the blades is avoided, and the flight stability of the unmanned aerial vehicle with the fixed-pitch propeller mechanism is improved.
本发明的实施例提供了一种固定螺距螺旋桨机构及无人机,涉及无人机技术领域。该固定螺距螺旋桨机构包括桨夹机构以及至少两个桨叶,桨夹机构限定出旋转轴心线,每个桨叶绕与旋转轴心线平行的轴心线可转动地连接于桨夹机构,且,每个桨叶沿旋转轴心线的延伸方向相对于桨夹机构可摆动,桨叶可以沿旋转轴心线的延伸方向相对于桨夹机构可摆动,进而将桨叶自身震动的能量部分转化为摆幅,震动的能量转换为了摆幅的势能,消除由于速度产生的气动不平衡,减小了桨叶自身的震动,桨叶绕与旋转轴心线平行的轴心线可转动地连接于桨夹机构,消除了哥氏力的影响,避免引发桨叶根部变弯或疲劳断裂,提高了具有该固定螺距螺旋桨机构的无人机的飞行稳定性。
Fixed pitch propeller mechanism and unmanned aerial vehicle
固定螺距螺旋桨机构及无人机
2022-12-09
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
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