Large-bird-imitating ornithopter

Abstract

The invention discloses a large-bird-imitating ornithopter which comprises a left wing, a right wing, a tail wing, a left wing rocker arm steering engine, a right wing rocker arm steering engine, a tail wing rocker arm steering engine, a wing fixing plate and a power transmission system. The left wing and the right wing are of the same structure and each comprise a wing plate frame and a wing plate. The left wing rocker arm steering engine and the right wing rocker arm steering engine are arranged on the wing fixing plate. A left wing supporting and hinging seat and a right wing supporting andhinging seat are fixed to the left side and the right side of the wing fixing plate. Hollow rotary shafts on vertical plates of the left wing plate frame and the right wing plate frame are rotationally connected with the left wing supporting and hinging seat and the right wing supporting and hinging seat correspondingly. The left wing rocker arm steering engine and the right wing rocker arm steering engine are connected with the corresponding hollow rotary shafts through connecting rods. A crank sliding block mechanism is arranged on the wing fixing plate and drives a wing rocker arm swingingup and down. The tail wing is arranged at the rear end of the wing rocker arm through a rotary shaft. A left wing upper traction rope, a left wing lower traction rope, a right wing upper traction rope and a right wing lower traction rope are fixed to the front end of the wing rocker arm. The large-bird-imitating ornithopter has the beneficial effects of being simple, practical, safe, reliable andconvenient to manufacture and maintain.

Description

Technical field [0001] The invention relates to a flapping-wing aircraft, in particular to a flapping-wing aircraft that mimics a large bird. Background technique [0002] Flapping wings are widely used in the flight of flying creatures in nature. Flapping wings include the advantages of fixed-wing flight and rotary-wing flight. It can quickly take off, accelerate and hover in short distances, and has high maneuverability and flexibility. . The flying modes of flying creatures can be roughly divided into three categories: 1. High-frequency flapping flight: This method uses a form of flapping wings with extremely high frequency and complex wing movements, such as hummingbirds and very small birds. insect. The flapping frequency of their wings is about 60-80 Hz, and they can achieve forward, backward, hovering and other difficult flight movements in the air; 2. Intermediate frequency flapping wings: mainly medium-sized birds such as pigeons, Swallows, etc., whose wings are not t...

AI Technical Summary

Problems solved by technology

However, the difficulty lies in the bionic design level of the wing mechanism, power mechanism and power transmission.

Most of the commonly used driving mechanisms are gear connecting rods. In addition to complex structure, high vibration and noise, low transmission efficiency and short service life, the manufacturing cost is relatively high. Therefore, the products produced are limited to aircraft models and toys. small air vehicle

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