Splay-track flapping wing mechanism and miniature flapping wing air vehicle

Abstract

The invention discloses a splay-track flapping wing mechanism. The splay-track flapping wing mechanism comprises a stander, a wing, a tail wing and a driving motor, wherein the wing is arranged above the stander, the tail wing is arranged behind the stander, and the driving motor is fixed on the stander; the wing comprises two rocking bars and two flapping wings; the two rocking bars are symmetrically arranged, and the two flapping wings are arranged on the outer ends of the two rocking bars; a gear driving assembly, a connecting rod assembly, a universal joint driving device and a ball pair sleeve are arranged between the wing and the driving motor. According to the splay-track flapping wing mechanism, the rocking bars are driven by the connecting rod assembly to do two-dimensional splay-track flapping and wing surface torsion, and the three-dimensional splay-track flapping of the rocking bars is achieved by virtue of the ball pair sleeve and the universal joint driving device; compared with a flapping wing mechanism, the splay-track flapping wing mechanism is high in speed and flight efficiency.

Description

technical field [0001] The invention relates to a flapping-wing mechanism, in particular to a figure-eight trajectory flapping-wing mechanism and a miniature flapping-wing aircraft. Background technique [0002] As a kind of unmanned aerial vehicle, MAVs are usually designed indoors and in cities, mainly for rescue, reconnaissance and surveillance. In the early 1990s, the U.S. Defense Advanced Research Projects Agency (abbreviated as DARPA) began research on micro-aircraft, and focused its research on military and navigation. Here, DARPA proposes some definitions for MAVs: the wingspan and length of the aircraft cannot exceed 6 inches (152mm), the total weight is between 80-150 grams, and it can last for 20-60 minutes. In addition, the aircraft needs to be able to carry real-time imaging cameras, infrared sensors or radar communications for missions such as collecting data at disaster sites. Micro air vehicles also need to have enough power for long-term missions, and the ...

AI Technical Summary

Problems solved by technology

[0003] The most critical thing in the micro-aircraft is the flapping wing mechanism. The design of the flapping wing mechanism directly determines the flight speed of the aircraft. In the prior art, the flapping wing mechanism generally adopts a simple straight line or arc trajectory flapping wings. The flexibility of the flapping wing mechanism Small, and the traditional flapping motion cannot simultaneously generate lift and thrust in one flapping cycle, and the efficiency of the flapping motion is low

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