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Multi-section bendable and foldable flapping wing driving mechanism

A driving mechanism, bending and folding technology, applied in the field of aircraft, can solve problems such as unfavorable aerodynamic efficiency, inability to imitate bird wings flapping, twisting, bending and folding, swinging, flapping motion phase difference cannot be completely eliminated, etc. Improved stability and improved aerodynamic efficiency

Pending Publication Date: 2022-04-15
博尔德航空航天科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among them, due to the nature of the mechanism itself, the phase difference of flapping movement cannot be completely eliminated for the single-crank double-rocker mechanism. Although the phase error is eliminated for the other three structures, they cannot imitate the wings of birds because they are single-segment linkage mechanisms. The fluttering, twisting, bending, folding, and swinging of the inner and outer wings in flight are not conducive to further improving aerodynamic efficiency.

Method used

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  • Multi-section bendable and foldable flapping wing driving mechanism
  • Multi-section bendable and foldable flapping wing driving mechanism
  • Multi-section bendable and foldable flapping wing driving mechanism

Examples

Experimental program
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Embodiment

[0029] After the DC motor is started, the lower connecting rod 1 will rotate around the drive shaft 15 connected to the DC motor, so that the belt connecting rod A2 performs a rotary motion, the connecting rod A2 is connected with the connecting rod B8, and the belt connecting rod B8 moves around the fixed shaft 16, Because the circular hole in the middle of the connecting rod B8 is connected with one end of the external fixed shaft 16, the other end of the fixed shaft 16 is connected on the bone slide plate 17 of the aircraft head, as image 3 As shown, the part connected with the connecting rod B8 can swing up and down, realizing the up and down movement of the inner wing similar to the wings of a bird.

[0030] The lower connecting rod 10, the upper connecting rod 5 and the parts connected thereto form a parallelogram structure. The short sides of the parallelogram, that is, the upper part of the connecting rod A2 and the connecting plate 13 will have different angles of inc...

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Abstract

The invention discloses a multi-section type bendable and foldable flapping wing driving mechanism which comprises a driving part, an upper transmission part and a lower transmission part which are respectively connected with the driving part in parallel, and an end part connecting part which is respectively connected with the end parts of the upper transmission part and the lower transmission part, and the pneumatic efficiency is improved by realizing flapping motion and bending and folding motion of a bird wing. By adding an auxiliary two-rod three-pair mechanism, the wings can be driven by a crank-link mechanism to complete spanwise bending.

Description

technical field [0001] The invention relates to the field of aircraft, in particular to a multi-stage bendable and foldable flapping wing driving mechanism. Background technique [0002] Humans have long had the ideal of flying like birds in the air. The mechanical pigeon made by Arcitas in ancient Greece, the boomerang as far as Australia, the Kongming lanterns and kites in China are all related. The development of modern aircraft has benefited from the great leap in science and technology brought about by the industrial revolution in the 19th century. The human flying dream started from the flapping wing aircraft and was initially realized from the fixed wing. At present, fixed-wing aircraft can already send humans into the blue sky, but the dream of flapping wings is still in progress. The twisting of the wing during the flight of the aircraft can increase the thrust, increase the lift-to-drag ratio, improve the endurance performance of the aircraft, and can also streng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C33/02
Inventor 向阳秦苏洋
Owner 博尔德航空航天科技(苏州)有限公司