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Wing flapping mechanism of bat-flapping-wing-imitating aircraft

A flapping aircraft and bat imitation technology, applied in the field of flapping aircraft, can solve the problems of low flight efficiency, inability to realistically simulate the flapping of bat wings, complex structure, etc., so as to reduce the wing area, the structure is simple, and the resistance is reduced. Effect

Active Publication Date: 2021-06-01
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problems that the flapping mechanism of the existing flapping-wing aircraft cannot realize the function of folding and unfolding while flapping, and it is impossible to truly simulate the flapping of bat wings, the structure is complicated, and the flight efficiency is low

Method used

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  • Wing flapping mechanism of bat-flapping-wing-imitating aircraft
  • Wing flapping mechanism of bat-flapping-wing-imitating aircraft
  • Wing flapping mechanism of bat-flapping-wing-imitating aircraft

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Experimental program
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specific Embodiment approach 1

[0036] Specific implementation mode one: combine Figure 1 to Figure 7Describe this embodiment. The wing flapping mechanism of a bat-like flapping wing aircraft in this embodiment includes a reduction gear set and two flapping retraction and deployment mechanisms. The reduction gear set is a two-stage reduction gear set. The mechanism is symmetrically installed on the reduction gear set, and is driven by the reduction gear set to realize flapping, folding and unfolding; the flapping, folding, and unfolding mechanism includes the first connecting rod 1, the first shoulder 2, the fixed shaft 3 of the fuselage, the second Two shoulders 4, rack 5, second connecting rod 6, first bevel gear 7, second bevel gear 8, transmission gear 9, elbow connector and finger connector, the elbow connector is a space crank rocker mechanism , the first shoulder 2 and the second shoulder 4 are rotatably fitted on the fixed shaft 3 of the fuselage, the outer sides of the first shoulder 2 and the seco...

specific Embodiment approach 2

[0041] Specific implementation mode two: combination image 3 Describe this embodiment, the reduction gear set of this embodiment includes a first gear 10, a second gear 11, a third gear 12, a fourth gear 13, a fifth gear 14, a sixth gear 17 and a seventh gear 18, the first The gear 10 is connected to the output shaft of the motor, the first gear 10 and the second gear 11 mesh with each other to form a first-stage reduction, the third gear 12 and the second gear 11 are coaxially connected, and the third gear 12 and the fourth gear 13 mesh with each other to form a Two-stage reduction, the fourth gear 13 is coaxially connected with the fifth gear 14, the sixth gear 17 and the seventh gear 18 are coaxially connected, the sixth gear 17 and the seventh gear 18 are respectively connected with the fourth gear 13 and the fifth gear 14 Mesh with each other. With such arrangement, only one motor can simultaneously drive the left and right symmetrical flapping, folding, and unfolding m...

specific Embodiment approach 3

[0042] Specific implementation mode three: combination image 3 The present embodiment will be described. In this embodiment, the axis center of the first bevel gear 7 and the axis centers of the first shoulder 2 and the second shoulder 4 are on the same straight line. Other compositions and connections are the same as those in the second embodiment.

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Abstract

The invention relates to a wing flapping mechanism, in particular to a wing flapping mechanism of a bat-imitating flapping-wing aircraft. The flapping mechanism aims at solving the problems that a flapping mechanism of an existing flapping-wing air vehicle cannot achieve the folding and unfolding functions while flapping is conducted, flapping of wings of bats cannot be truly simulated, the structure is complex, and the flight efficiency is low. The wing flapping mechanism comprises a reduction gear set and two flapping folding and unfolding mechanisms, the reduction gear set is a secondary reduction gear set, and the two flapping folding and unfolding mechanisms are symmetrically installed on the reduction gear set and driven by the reduction gear set to achieve flapping, folding and unfolding. Specifically, a space crank rocker mechanism is used for achieving an up-down reciprocating flapping function, a space crank rocker, a bevel gear, a gear rack and a Watt six-connecting rod are matched to achieve a folding and unfolding motion function, and a motor is used for driving the flapping mechanism and the folding and unfolding mechanism at the same time, so that wings are unfolded during downward flapping and folded during upward flapping. The invention is applied to the field of ornithopters.

Description

technical field [0001] The invention relates to a wing flapping mechanism, in particular to a flapping structure of a bat-like flapping-wing aircraft capable of being folded and unfolded during the flapping process, and belongs to the field of flapping-wing aircraft. Background technique [0002] Since the 1990s, with the development of aerodynamic theory, new materials and electromechanical technology, aircraft has entered a major trend of development, and various types of aircraft have been studied all over the world. Among them, the bionic flapping wing aircraft can realize vertical take-off and landing, hovering in the air, side flight and inverted flight, and some can glide, high-speed flight and long-distance cruise. high sex. It has great development prospects in military investigation, scientific research and civilian fields. [0003] Bats are the only mammals that can fly, and they are also the "flying masters" in the flying world. Their flexible wing-hands can fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C33/02
CPCB64C33/02
Inventor 郭闯强段博崧刘宏
Owner HARBIN INST OF TECH