Micro dragonfly-imitating dual-flapping wing aircraft

Abstract

The invention relates to a micro dragonfly-imitating dual-flapping wing aircraft which mainly consists of a rack, a front flapping wing system and a rear flapping wing system. A pinion (17) and a large gear (16) are in meshing transmission; the large gear (16) is fixedly connected with a runner (14) through a transmission shaft (15) at an adjustable angle (36); the large gear (16), a connection rod a (23), a front right rocker (24) with a sector gear, a Y-shaped front bracket (18), a runner (14), a connection rod b (34), a rear right rocker (33) with sector gear and a Y-shaped rear bracket (20) form a crank rocker mechanism respectively; and the front and rear flapping wing systems are in meshing transmission through the sector gears to realize symmetric flapping. Compared with the prior art, the micro dragonfly-imitating dual-flapping wing aircraft provided by the invention has the advantages that: the two flapping wings are driven by a single motor in a simple and compact structure,the flapping of the front and rear flapping wing systems is completely symmetric, the flapping phase difference of the front and rear flapping wing systems can be adjusted as necessary to as to perfectly imitate the flexible flapping flying of dragonfly, and the like.

Description

technical field [0001] The invention relates to a flapping-wing aircraft, in particular to a miniature dragonfly-like double flapping-wing aircraft. Background technique [0002] The flapping-wing flight mode widely exists in the flight of flying creatures in nature. The flapping-wing flight includes the advantages of fixed-wing flight and rotary-wing flight. It can take off, accelerate and hover quickly, and has high maneuverability and flexibility. The flight modes of flying creatures can be roughly divided into three categories: low-frequency flapping flight, such as many large birds (hawks, vultures, wild geese, seagulls, swans, etc.), with longer and larger wingspan and low flapping frequency, It ranges from zero to tens of hertz, using low-frequency flapping and gliding in the form of flapping; intermediate-frequency flapping flight, mainly for medium-sized birds (such as swallows, sparrows, pigeons, etc.) Large, the flapping frequency is relatively high, and gliding ...

AI Technical Summary

Problems solved by technology

Patent CN200942872Y provides a dragonfly-like double-flapping-wing aircraft, but the defect of the dragonfly-like double-flapping-wing aircraft provided by this patent is very obvious: on the one hand, the left and right flapping wings of the front and rear flapping wing systems are completely asymmetrical, While the left (right) flapping wing is flapping upwards, the right (left) flapping wing is flapping downwards, and the front and rear flapping wing systems are completely reversed flapping, resulting in poor flight stability of the aircraft, or even ineffective flight

On the other hand, this patent is not designed for micro-aircraft. It adopts multi-stage gear transmission, which has a large layout and heavy structure, which is not conducive to miniaturization.

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