Double coaxial tilt rotor wing unmanned aerial vehicle nacelle structure

Abstract

The invention discloses a double coaxial tilt rotor wing unmanned aerial vehicle nacelle structure. The double coaxial tilt rotor wing unmanned aerial vehicle nacelle structure comprises two rotor wings, a driving device and a variable pitch system, wherein the two rotor wings are arranged oppositely; the driving device is used for generating power which enables the two rotor wings to rotate; the variable pitch system is connected with the two rotary wings and used for changing the incidence angle of the rotor wings; the driving device comprises a rotor wing main shaft and two electromotors; the two electromotors are connected with the rotor wing main shaft through a first transmission mechanism; the tow rotor wings are connected with one end of the rotor wing main shaft. The double coaxial tilt rotor wing unmanned aerial vehicle nacelle structure provided by the invention adopts double electromotors to drive one main shaft to rotate and is favorable for stressed balance, torque is output stably while the nacelle overcomes the tension force of the rotor wings, the anti-fatigue condition of the mechanical structure is improved, and the service life is prolonged; furthermore, the nacelle structure is simplified from the aspects of structure, control and reliability, the structure weight is reduced, and the performance of the tilt rotor wing unmanned aerial vehicle can be improved.

Description

technical field [0001] The invention belongs to the technical field of aircraft, in particular, the invention relates to a nacelle structure of a double-coaxial tilting-rotor unmanned aerial vehicle. Background technique [0002] The tilt rotor aircraft is a kind of vertical take-off and landing and air hovering ability like ordinary helicopters, and it also has the characteristics of high cruising speed and long range like propeller aircraft. Tilting rotor aircraft is currently considered by researchers from various countries to be one of the aircraft with the highest development prospects and application value in the aviation industry. [0003] Tilting rotorcraft not only has vertical take-off and landing and high-speed cruise performance, but also has strong maneuverability, so its application fields are extremely broad. In the middle of the 20th century, the United States began research on tiltrotor technology, which began with XV-3, matured in XV-15, and was applied to...

AI Technical Summary

Problems solved by technology

[0004] At present, domestic tiltrotor aircraft flight tests are only reflected in small unmanned tiltrotor aircraft. It can be admitted that China has made progress in this technology, but these advancements are basic research. Manufacturing still has a long way to go

Moreover, the nacelle structure of the existing tilt-rotor UAV has defects such as complex structure, complicated control, and poor performance.

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