Propeller blade-fixing device and unmanned aerial vehicle
A propeller and fixed propeller technology, applied in the field of unmanned aerial vehicles, can solve problems such as disturbing the airflow and damaging the blades, and achieve the effect of prolonging the service life and reducing the cost of use
Active Publication Date: 2016-06-01
中天智控科技控股股份有限公司
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Problems solved by technology
[0006] The purpose of the present invention is to provide a propeller pitcher and an unmanned aerial vehicle to solve the problem in the prior art that when the propeller engine is stopped, the blade remains free during cruising or landing under the action of rotational inertia and wind force Rotational state, which disturbs the air flow or damages the technical problem of the blade
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[0029] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...
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The invention relates to the technical field of unmanned aerial vehicles, in particular to a propeller blade-fixing device and an unmanned aerial vehicle.The propeller blade-fixing device comprises a first magnetic locating mechanism, a second magnetic locating mechanism, a rotating part and a fixing part; the rotating part is used for being fixed on a power output shaft of a motor, the fixing part is used for being fixed on the unmanned aerial vehicle, and the fixing part and the rotating part are oppositely arranged; the first magnetic locating mechanism is arranged on the rotating part, the second magnetic locating mechanism is arranged on the fixing part, and the second magnetic locating mechanism is used for fixing the first magnetic locating mechanism so as to fix the rotating part on the preset position.By means of the interaction force of the first magnetic locating mechanism and the second magnetic locating mechanism, the rotating part is accelerated to brake, a propeller is accelerated to stop, the situation that under a non-working state, a propeller of a multi-rotor unmanned aerial vehicle rotates freely and disturbs airflow is avoided, or the situation that in the falling process of the unmanned aerial vehicle, a propeller engine is shut down, blades collide the ground due to inertial rotation of the propeller, and the unmanned aerial vehicle is damaged is avoided.
Description
technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a propeller pitcher and an unmanned aerial vehicle. Background technique [0002] UAVs are divided into multi-rotor UAVs, fixed-wing UAVs, and vertical take-off and landing fixed-wing UAVs. The multi-rotor UAV has multiple propellers, and the take-off and landing and flight attitude of the aircraft are controlled by changing the working state of each rotor. The fixed-wing UAV relies on the thrust generated by the propeller as the power for the aircraft to fly forward. The vertical take-off and landing fixed-wing UAV is not only equipped with multiple propellers of the multi-rotor aircraft to achieve vertical take-off and landing, but also equipped with the propeller of the power unit that provides forward flight for the fixed-wing UAV. [0003] Regardless of the function of the propeller, when the aircraft is working, it needs to control its own working state b...
Claims
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IPC IPC(8): B64C11/00
CPCB64C11/00
Inventor 窦博雄薛强李晓虎叶方云
Owner 中天智控科技控股股份有限公司