Planetary crank driving mechanism, flapping-wing mechanism utilizing same and flapping-wing aircraft utilizing same

Abstract

The invention discloses a planetary crank driving mechanism, a flapping-wing mechanism utilizing the planetary crank driving mechanism and a flapping-wing aircraft utilizing the planetary crank driving mechanism. The planetary crank driving mechanism comprises a crank shaft, a first eccentric journal, a first eccentric block and a first planetary gear mechanism, wherein the crank shaft is driven to rotate by virtue of external power, and the rotation axis of the crank shaft is fixed; the first eccentric block is rotatably sleeved on the first eccentric journal; the eccentric distance of the first eccentric block is as the same as that of the first eccentric journal; the first planetary gear mechanism comprises an inner gear ring and a planetary gear meshed with the inner gear ring; the planetary gear and the first eccentric block are synchronously and rotatably connected; the central axis of the inner gear ring and the rotation axis of the crank shaft are coaxially arranged; the first eccentric block integrally performs linear harmonic motion when the crank shaft rotates. According to the planetary crank driving mechanism of the flapping-wing aircraft, when the crank shaft rotates, the first eccentric block integrally performs linear reciprocating harmonic motion, so that the high-frequency vibration of the flapping-wing aircraft can be reduced.

Description

technical field [0001] The invention relates to a planetary crank transmission mechanism, a flapping-wing mechanism and a flapping-wing aircraft using the mechanism. Background technique [0002] In the field of international aviation, the research on orthopter has been very active in recent years, and many achievements have been made in the research of orthopter. With the rapid development of high-tech fields such as electronic computers, new composite materials, and control technology, a new foundation has been established for the development of orthopter In the future, there will be many technological breakthroughs that will allow humans to fly in a controllable "robot bird" that is safer, more agile, and more energy-efficient, without relying on high-energy-consuming propellers and jet power. [0003] For the flapping aircraft, the flapping mechanism that drives the wings to flap is one of its core components. At present, there can be multiple connecting rods and rocker...

AI Technical Summary

Problems solved by technology

At present, there can be multiple connecting rods and rocker arms in an ordinary crank-link rocker arm flapping wing mechanism, but there is only one crank, and the rotation axis of the crank is fixed. Very rich, causing high-frequency vibration and fatigue failure of orthopter

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