Bionic flapping mechanism applied to hovering type micro flapping-wing air vehicle

Abstract

The invention relates to a bionic flapping mechanism applied to a hovering type micro flapping-wing aircraft, and the mechanism comprises: a rack which is provided with a plurality of installation holes; a crank rocker mechanism which is driven by external force to rotate at the first mounting hole; an angle amplifying mechanism which comprises a swinging pair and a revolute pair, wherein the swinging pair is fixed on the crank rocker mechanism and swings at the first mounting hole along with the crank rocker mechanism, at least comprise two groups of revolute pairs with the same structure are included, any group of revolute pair is meshed with the swing pair, the swing angle of the revolute pair is i times of the swing angle of the swing pair, i is the transmission ratio of the swing pair to the revolute pair, and and the wing root connecting pieces are connected to the revolute pairs. Theangle amplification mechanism is arranged,the swing angle of the crank and rocker mechanism is amplified through the swing pair and the revolute pairs which are matched with each other, the swing angle of the rotating pair is i times of the swing angle of the swing pair, angle amplification is achieved, high-frequency high-amplitude flapping similar to that of a hummingbird can be output, the Clap-Fling high-lift mechanism is effectively utilized, and the generated lift force is large.

Description

technical field [0001] The invention relates to the technical field of aircraft, and more specifically relates to a bionic flapping mechanism applied to a hovering miniature flapping-wing aircraft. Background technique [0002] The hovering flapping-wing aircraft is a bionic aircraft based on hovering birds or insects. It has the advantages of small size, good concealment, low noise, fast take-off and landing, ability to hover, good maneuverability, and high energy efficiency. Compared with micro-fixed-wing and rotary-wing aircraft, micro-orthopting-wing aircraft has shown superior performance in many aspects, so its application prospects are broad. [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 enoug...

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

Images