Electric double coaxial tilting rotor aircraft

Abstract

The invention discloses an electric double coaxial tilting rotor aircraft, which comprises an aircraft body, a tilting main shaft and nacelle structures arranged at two ends of the tilting main shaft, wherein each nacelle structure comprises two oppositely arranged rotors, a drive device for generating power driving the two rotors to rotate, and a variable pitch system connected the two rotors and used for changing attack angles of the rotors; each drive device comprises a rotor main shaft and two motors connected with the rotor main shaft through a first transmission mechanism; and two rotors are connected with one end of the corresponding rotor main shaft separately. Wings and the rotors can tilt at the same time, so that reduction of the wind drag is facilitated during vertical take-off, reduction of aerodynamic disturbance of the rotors and the wings is also facilitated and the aerodynamic performance of the rotors is improved. According to the electric double coaxial tilting rotor aircraft, one main shaft is driven to rotate through the adopted nacelle structures by using double motors, so that stress balance is facilitated, and the effect in improvement of the fatigue strength and the reliability, reduction of the structure weight, simplification of the structure and control is significant.

Description

technical field [0001] The invention belongs to the technical field of aircraft, in particular, the invention relates to an electric double-coaxial tilting-rotor aircraft. 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 V-22 Osprey. Compared with...

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

In particular, the nacelle structure of the existing tilt-rotor UAV has defects such as complex structure and complicated control, which affect the performance of the tilt-rotor aircraft.

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