A bird-like flapping wing mechanism

Abstract

The invention discloses a bird-imitating flapping wing mechanism and belongs to the technical field of flapping wing air vehicles. The mechanism mainly comprises a left transmission case, a left driven gear, a stander, a right driven gear, a right transmission case, a right flapping wing, a right driving gear, a right shaft, a synchronizing shaft, a left shaft, a left driving gear, a right flapping wing and the like; case bodies of the left transmission case and the right transmission case are symmetrically mounted on two sides of the stander through a bearing; the left driven gear and the right driven gear are fixedly connected with the case bodies of the left transmission case and the right transmission case respectively, and are engaged with the left driving gear and the right driving gear respectively, so as to form a main transmission system of the flapping wing mechanism; the left flapping wing and the right flapping wing flap synchronously at the same speed to generate lift force needed by an air vehicle; a left control steering engine and a right control steering engine form an aerodynamic force direction control mechanism of the flapping wing mechanism through bevel gear transmission in the left transmission box and the right transmission box; the aerodynamic force direction control mechanism changes the direction of the lift force by changing the initial mounting positions of the left flapping wing and the right flapping wing. The bird-imitating flapping wing mechanism has the advantages of relatively high and relatively stable lifting force, good dynamic balance, high transmission efficiency, long service life, sensitiveness in lifting force direction control, and the like.

Description

technical field [0001] The invention belongs to the technical field of flapping-wing aircraft, and in particular relates to a bird-like flapping-wing mechanism. Background technique [0002] Due to the complexity of bird flapping, the research on the driving mechanism of imitating bird flapping wings has become a very important research topic. At present, most flapping-wing aircraft can only achieve simple up-and-down flapping, such as the flapping-wing mechanism of a single-crank and double-rocker mechanism. This type of flapping-wing aircraft has low flapping frequency and small lift, and it is difficult to control the flight stability of the aircraft. The known flapping wing aircraft (CN201380963Y) has a pair of flapping wings flapping up and down to generate lift, while the flapping wings can move in a variable direction to change the direction of the lift, and a propeller is provided above the flapping wings to increase the lift. Therefore, its control system will not ...

AI Technical Summary

Problems solved by technology

However, the flapping wing mechanism for generating lift is complicated, especially the internal cam meshing with the pin gear takes up a large space, has a large moment of inertia, and is insensitive to aerodynamic direction control

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