The invention relates to the technical field of unmanned aerial vehicles, and discloses a vertical take-off and landing unmanned aerial vehicle and an engine propeller locking device.The engine propeller locking device comprises four fixed magnets arranged on the inner circumferential face of a motor support and a movable magnet arranged on the outer circumferential face of a propeller hub, and the four fixed magnets are evenly arranged on the inner circumferential face of the motor support in the circumferential direction; the magnetic poles of two adjacent fixed magnets repel each other; at least two moving magnets are arranged on the peripheral surface of the propeller hub, the corresponding central angles of the two adjacent moving magnets are 90 degrees, and the magnetic poles of the two adjacent moving magnets repel each other; when the propeller is located at the non-horizontal position, the movable magnets repel the magnetic poles of the fixed magnets opposite to the movable magnets, the propeller hub is driven by magnetic force to drive the propeller to rotate, and when the propeller rotates to the horizontal position, the movable magnets attract the magnetic poles of the fixed magnets right opposite to the movable magnets. The engine propeller locking device is high in propeller locking success rate, simple in structure, convenient to operate, free of intervention of an engine electric control system, high in reliability and not limited by wind power conditions and visual conditions.
本发明涉及无人机技术领域,公开了一种垂直起降无人机及其发动机螺旋桨锁桨装置,发动机螺旋桨锁桨装置包括设于电机支架的内周面的定磁铁和设于桨毂的外周面的动磁铁,电机支架的内周面沿圆周方向均匀设有四个定磁铁,相邻两定磁铁的磁极相斥;桨毂的外周面设有至少两个动磁铁,相邻两动磁铁对应的圆心角均为90°,相邻两动磁铁的磁极相斥;当螺旋桨处于非水平位置时、动磁铁均和与其相对的定磁铁的磁极相斥,磁力驱动桨毂带动螺旋桨转动,当螺旋桨转动至水平位置时,动磁铁均和与其正对的定磁铁的磁极相吸。上述发动机螺旋桨锁桨装置锁桨成功率高,结构简单、操作便捷,无需发动机电控系统介入、可靠性高,且不受风力条件和目视条件的限制。
Vertical take-off and landing unmanned aerial vehicle and engine propeller locking device thereof
一种垂直起降无人机及其发动机螺旋桨锁桨装置
2023-12-29
Patent
Electronic Resource
Chinese
IPC: | B64U |
European Patent Office | 2021
|