Asynchronous rotary flapping-wing aircraft

Abstract

The invention discloses an asynchronous rotary flapping-wing aircraft, and belongs to the technical field of aviation. The asynchronous rotary flapping-wing aircraft mainly comprises a body, a tail propeller, a left flapping-wing device, a right flapping-wing device and a landing gear. The structures, parameters and working principles of the left flapping-wing device and the right flapping-wing device are identical to one another, and the left flapping-wing device and the right flapping-wing device are symmetrically arranged on the left side and the right side of the body. A rotation plane of the tail propeller can be inclined leftwards or rightwards, so that the aircraft can be in pitch flying attitude and yaw flying attitude. The right flapping-wing device comprises an engine, a speed reducer, a spindle, a rocker arm rest, a guide cover, a central half-tooth gear and four identical rotor devices, and the four identical rotor devices are uniformly distributed on the rocker arm rest. Each rotor device comprises a near-center gear, a far-center gear and fins. A transmission ratio of each far-center gear to the corresponding near-center gear is 1:1. A meshed transmission ratio of each near-center gear to the central half-tooth gear is 1:1. The asynchronous rotary flapping-wing aircraft has the advantages that the fins can keep downwardly flapping in horizontal states and can rise while keeping perpendicular to rocker arms, and accordingly the asynchronous rotary flapping-wing aircraft is high in lift force generating efficiency; the aircraft can be used for carrying out aerial photography, disaster relieve and agricultural, forestry and animal husbandry operation and meeting military requirements.

Description

technical field [0001] An asymmetric rotary flapping-wing aircraft belongs to the technical field of aviation, and in particular relates to a flapping-wing aircraft. Background technique [0002] The lift device of the traditional flapping wing is the connecting rod flapping wing, which generates lift by inciting the wings up and down. When the flapping wing rises, the resistance is relatively large, the efficiency is low, the lift that can be generated is limited, and it is difficult to achieve heavy-duty flight; The Chinese patent No. ZL200910073435.8 discloses a flapping wing lift generating device with a more complex structure that relies on the flapping wing lifting mechanism to reset the flapping wing and the existing half-turn mechanism flapping wing device, although the efficiency is higher than that of the traditional flapping wing It is higher, but during the flapping process of the wings, only the wings in the middle position are in the horizontal position. At oth...

AI Technical Summary

Problems solved by technology

[0002] The lift device of the traditional flapping wing is the connecting rod flapping wing, which generates lift by inciting the wings up and down. When the flapping wing rises, the resistance is relatively large, the efficiency is low, the lift that can be generated is limited, and it is difficult to achieve heavy-duty flight; The Chinese patent No. ZL200910073435.8 discloses a flapping wing lift generating device with a more complex structure that relies on the flapping wing lifting mechanism to reset the flapping wing and the existing half-turn mechanism flapping wing device, although the efficiency is higher than that of the traditional flapping wing It is higher, but during the flapping process of the wings, only the wings in the middle position are in the horizontal position. At other times, there is an angle between the wings and the horizontal plane. The component in the vertical direction, the component in the horizontal direction has become a loss, so the efficiency of the flapping wing device of these two kinds of existing flapping-wing aircrafts to produce lift is also limited

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