Double-ball joint combined motion type bird-imitating flapping wing device

Abstract

The invention discloses a double-ball joint combined motion type bird-imitating flapping wing device and belongs to the field of bird-imitating flapping wings. The device comprises a connecting wing rod, an upper edge rib, a lower edge rib and multiple intermediate ribs. The upper edge rib, the intermediate ribs and the lower edge rib are aligned and stacked in one row, a pin shaft penetrates through one end of the upper edge rib, one end of each intermediate rib and one end of the lower edge rib to fix the ends, the other ends are movably expanded in a bundle shape, a foldable wing film covers the upper edge rib, the intermediate ribs and the lower edge rib to form a wing face, the fixed ends of the lower edge rib and the upper edge rib extend, the extending ends are each provided with aball joint, the two ball joints are connected through a spring, any ball joint is coaxially and fixedly connected with a motor, and the motor is coaxially fixed to the connecting wing rod. The force moment is applied to the first ball joint through the motor, and the second ball joint and the lower edge rib are driven by the spring to rotate. The device is simple in structure, convenient to use and control, good in stability and particularly suitable for upper-air flight of a bird-imitating flapping wing robot.

Description

technical field [0001] The invention relates to the field of bird-like robot flapping wings, in particular to a double-ball joint compound motion type bird-like flapping wing device. Background technique [0002] When birds in nature are flying, the feathers attached to the wings of the birds will open or close according to the fluttering situation, so as to go for a ride or exhaust the wind, thereby adjusting the resistance or thrust on the surface of the bird wings. By imitating the movement of birds in nature, the miniature flapping-wing robot can achieve high-altitude flight. The results of bionics and aerodynamics research have shown that in some aspects of flight, the flight performance of small or micro-flapping-wing robots is better than that of traditional fixed-wing or Flight performance of a rotorcraft. [0003] In the prior art, the flapping wing is usually a fixed airfoil, and the driving and exhausting are not fully considered during the flapping wing movement...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the flapping wing is usually a fixed airfoil, and the driving and exhausting are not fully considered during the flapping wing movement. However, the flapping wing suffers from relatively large resistance during the flapping process. Wind, the flight efficiency of the robot is low, and sometimes there may even be a situation where the resistance is greater than the lift, so that the robot will not be able to fly, especially when encountering strong winds, strong winds and other weather, the lift provided by the flapping wings is often not large enough

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