Single-ducted coaxial rotor/propeller saucer-shaped aircraft

Abstract

The invention provides a single-ducted coaxial rotor / propeller saucer-shaped aircraft, which comprises an upper rotor, a lower propeller, a swashplate, a connecting rod, a spindle, a large gear, a bracket, an upper rotor wing motor, a lower propeller motor, a ducted wall, a shell, a steering engine, a support rod and a support seat, wherein the upper rotor is fixedly connected with the spindle; the spindle is supported by the bracket; the bracket is formed by connecting four support rods with one support seat; the large gear is arranged in the support seat; the support seat is connected with the spindle; the spindle is connected with the propeller motor; the ducted wall is arranged inside the shell; both ends of the support rods are respectively connected with the ducted wall and the support seat; the steering engine and the upper rotor wing motor are mounted on the upper side edge of the support seat; and the upper rotor wing motor is meshed with the large gear through a gear in the upper propeller motor. Compared with a single-thrust propeller ducted aircraft, the single-ducted coaxial rotor / propeller saucer-shaped aircraft is less in thrust loss due to no air control surface, and the rotor is combined with the propeller to provide a greater elevating force; and compared with other multi-ducted aircrafts, the single-ducted coaxial rotor / propeller saucer-shaped aircraft is simple in structure.

Description

technical field [0001] The invention relates to a disc-shaped aircraft, in particular to a single-duct coaxial rotor / propeller disc-shaped aircraft. Background technique [0002] Judging from the current research situation at home and abroad, the research on saucer aircraft mainly includes non-coaxial disc aircraft, coaxial disc aircraft and other drive mode disc aircraft from the perspective of the distribution position of the power plant. [0003] The State Key Laboratory of Helicopter Rotor Dynamics of Nanjing University of Aeronautics and Astronautics carried out the overall design and simulation calculation research of the ducted coaxial dual-rotor UAV, and proposed an aerodynamic shape scheme for the dish-shaped aircraft, but no actual flight and Related reports of follow-up research. [0004] Harbin Shengshi Special Aircraft Co., Ltd. has a series of single-thrust propeller ducted aircraft patents (invention patent application announcement number CN101704415A, utilit...

AI Technical Summary

Problems solved by technology

These patented solutions are all provided with thrust by a single propeller, and the attitude control of the aircraft needs to be completed with the help of air rudders, which will lose part of the thrust and it is difficult to increase the mass of the payload

[0005] The application number is 201110151075.6, and the invention patent application with the application announcement number CN102285449A discloses a coaxial double-rotor ducted aircraft, but the rotor is actually a propeller, and the blade does not have the function of changing the blade angle.

The control of the flight attitude is realized by the air rudder below, the existence of the air rudder will lose part of the lift

[0006] The application number is 201020581268.6, and the application announcement number is CN2014842257U. Although the utility model patent application also applies the upper and lower coaxial rotors, its single rotor has only two blades, and the change of the blade angle of the rotor can only change the lift force, and does not control the attitude of the aircraft. The ability to control the attitude and forward flight of the aircraft requires three auxiliary power systems to achieve

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