A bionic flapping mechanism applied to a hoverable micro flapping aircraft

Abstract

The invention relates to a bionic flapping mechanism applied to a hoverable micro flapping-wing aircraft, comprising: a frame with a plurality of mounting holes; a crank-rocker mechanism driven by external force to rotate at the first mounting hole; The mechanism includes a swinging pair and a rotating pair, the swinging pair is fixed on the crank-rocker mechanism, and swings at the first installation hole following the crank-rocker mechanism; the rotating pair includes at least two groups of the same structure, any one of the rotating pair and the swinging pair. The teeth mesh, and the swing angle of the rotating pair is i times the swing angle of the swinging pair, where i is the transmission ratio between the swinging pair and the rotating pair; the fin root connecting piece is connected to the rotating pair. The present invention uses the angle magnification mechanism to enlarge the swing angle of the crank-rocker mechanism through the mutually matched swing pair and the rotating pair, and the swing angle of the rotating pair is i times the swing angle of the swing pair, so as to realize the angle enlargement, so that the output similar to that of a hummingbird can be realized. The high-frequency and high-amplitude flutter of the Clap-Fling effectively utilizes the high-lift mechanism of Clap-Fling, and the generated lift is large.

Description

technical field [0001] The invention relates to the technical field of aircraft, in particular to a bionic flapping mechanism applied to a hoverable micro flapping-wing aircraft. Background technique [0002] Hoverable flapping-wing aircraft is a bionic aircraft based on hovering birds or insects. Compared with the micro fixed-wing and rotary-wing aircraft, the micro flapping-wing aircraft shows superior performance in many aspects, so its application prospect is broad. [0003] At present, the flapping mechanism of the micro bionic flapping-wing aircraft is relatively simple, the bionic effect is poor, and it is difficult to output high-frequency and high-amplitude flapping similar to birds or insects. Take off. [0004] Therefore, how to provide a bionic flapping mechanism applied to a hoverable micro flapping aircraft, and under certain other conditions, to increase the lift force is an urgent problem to be solved by those skilled in the art. SUMMARY OF THE INVENTION ...

AI Technical Summary

Problems solved by technology

[0003] At present, the flapping mechanism of micro-bionic flapping-wing aircraft is relatively simple, and the bionic effect is poor. It is difficult to output high-frequency and high-amplitude flapping similar to birds or insects, which makes the flight efficiency of the aircraft low, and it is even difficult to generate enough lift. take off

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