Two-degree-of-freedom flapping wing mechanism

A technology with degrees of freedom and dynamic mechanism, applied in the field of bionic flapping-wing aircraft, can solve the problems of intermittent vibration of inner groove cam commutation, avoid additional dynamic load and impact, reduce impulse damage, and improve the effect of air lift

Inactive Publication Date: 2019-11-26
DALIAN UNIV OF TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] According to the above-mentioned technical problems, a two-degree-of-freedom flapping wing mechanism is provided to solve the existing two-degree-of-freedom flapping wing mechanism, which uses a high-pair contact cam mechanism to realize the intermittent rotation of the wings. A lot of wear and tear will cause the disadvantage of intermittent vibration when the inner groove cam changes direction

Method used

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  • Two-degree-of-freedom flapping wing mechanism
  • Two-degree-of-freedom flapping wing mechanism

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Embodiment Construction

[0020] Such as figure 1 and figure 2 As shown, a two-degree-of-freedom flapping wing mechanism includes: a flapping mechanism and a wing surface rotation mechanism; the described flapping mechanism includes a crank, a connecting rod and a rocker, and the described wing surface rotation mechanism includes structurally symmetrical Left wing surface rotating mechanism 8 and right wing surface rotating mechanism 9.

[0021] The crank includes a first crank 2 and a second crank 3, the connecting rod includes a first connecting rod 4 and a second connecting rod 5, and the rocker includes a first rocker 6 and a second rocker 7 The frame 1 is connected together with the left wing surface rotation mechanism 8 through the first crank 2, the first connecting rod 4 and the first rocker 6 in turn, and the first crank 2, the first connecting rod 4 and the first The rocking rods 6 are connected by rotating pairs, so that the first crank 2, the first connecting rod 4 and the first rocking ...

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Abstract

The invention discloses a double-freedom-degree flapping wing mechanism. The double-freedom-degree flapping wing mechanism comprises a flapping mechanism and wing face rotating mechanisms. The flapping mechanism comprises cranks, connecting rods and rocking rods. The wing face rotating mechanisms comprise the left wing face rotating mechanism and the right wing face rotating mechanism which are arranged in a structurally-symmetrical manner. The cranks comprise the first crank and the second crank. The connecting rods comprise the first connecting rod and the second connecting rod. The rocking rods comprise the first rocking rod and the second rocking rod. A rack is connected to the left wing face rotating mechanism through the first crank, the first connecting rod and the first rocking rod in sequence. According to motion of the double-freedom-degree flapping wing mechanism, the double-freedom-degree motion mode is achieved mainly through a rod system structure; the double-freedom-degree flapping wing mechanism is reliable and stable in motion; due to the fact that a flexible material has the shock absorption and buffer effects, compared with a traditional higher-pair contact cam mechanism, the more stable motion effect is achieved; and the intermittent vibration problem caused by reversing of a cam is avoided.

Description

technical field [0001] The invention relates to the field of bionic flapping-wing aircraft, and relates to a dual-degree-of-freedom flapping-wing mechanism capable of automatically adjusting wing surface deformation during flight to reduce flight resistance. Background technique [0002] As an executive mechanism, the double-degree-of-freedom flapping wing mechanism can realize the output of a single power source to complete the compound movement, which is divided into flapping and rotation. The flapping mechanism has the characteristics of quick return and can realize high-frequency flapping; The flutter rotates around the wing axis to reduce the force-bearing area of ​​the air, and the wing surface rotates accordingly to increase the force-force area of ​​the air and increase the lift force when the beat is down, and the rotation of the wing surface has the characteristics of intermittent motion. [0003] The two-degree-of-freedom flapping wing mechanism must not only meet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C33/02
CPCB64C33/02
Inventor 黄河水杨倩男周文雅曲成林孙博雅高威田润王健丁文李笑然
Owner DALIAN UNIV OF TECH
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