Sea gull-imitating flapping wing mechanism

Abstract

The invention discloses a sea gull-imitating flapping wing mechanism which comprises a driving part, a transmission part, a flapping wing part and a keel. The keel sequentially penetrates through andis fixed on the driving part, the transmission part and the flapping wing part and is used for supporting and connecting the whole mechanism; each of left and right flapping wing connecting rod mechanisms of the flapping wing part consists of front and rear crank and rocker mechanisms and a parallelogram mechanism. By adopting the two sets of crank and rocker mechanisms and parallelogram mechanisms connected in parallel, the sea gull-imitating flapping wing mechanism, compared with a conventional sea gull-imitating flapping wing mechanism with a single crank rocker mechanism, simulates the movement rule of double-section flapping wings of birds and two-section flapping wings similar to sea gull flapping wings and improves the bionic property of flapping wing movement; the sea gull-imitating flapping wing mechanism has the advantages of being compact and simple in structure.

Description

technical field [0001] The invention belongs to the technical field of bionic robots, in particular to an imitation seagull flapping wing mechanism. Background technique [0002] The creatures that can achieve flapping flight in nature mainly include birds, mammals (mainly bats) and insects, and the corresponding wing structures and muscle drive mechanisms are different. As the body size of flying animals decreases, the flapping frequency tends to increase continuously. The flapping frequency of flying birds is between 2-100 Hz, such as 2 Hz for swans and herons, 4 Hz for seagulls, 10 Hz for pigeons, and 50 Hz for the smallest hummingbirds. The flapping frequency of insects is usually greater than 100 Hz, and there have been records of more than 1000 Hz. [0003] UAVs are widely used in military reconnaissance, aerial photography, biological behavior research and other fields. Existing flying robots mainly include fixed-wing, rotary-wing and flapping-wing. Due to the comm...

AI Technical Summary

Problems solved by technology

Most of the existing bionic flapping wing mechanisms only consider the angle flapping range of the front end of the flapping wing, or only include the flapping wing mechanism at the passive rear end. The coordination between the front end of the flapping wing and the rear end of the flapping wing affects the aerodynamic performance during the flapping process

[0005] In Chinese patent 200610042632.X, a worm gear reduction mechanism is adopted, and a space crank rocker mechanism is symmetrically distributed on both sides of the worm wheel, wherein the two ends of the connecting rod are respectively connected to the crank end and the rocker end through a spherical hinge, and the motor drives the worm to rotate. Then drive the worm gear, so that the rockers in the crank-rocker mechanism on the left and right sides can simulate the flapping angle range of the creature, but cannot imitate the chan

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