Single-degree-of-freedom dual-mode infinite turnover mechanism

A flip mechanism, dual-mode technology, applied in the fields of aviation, space folding, and aerospace, can solve the problems of increased control difficulty, reduced mechanism reliability, and weak structural ductility, etc., and achieves easy processing and simple structure. Effect

Active Publication Date: 2021-03-26
BEIJING JIAOTONG UNIV
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Problems solved by technology

[0003] Chinese patent CN 111152194A discloses "a single-degree-of-freedom infinite overturning mechanism". weak
Chinese patent CN111089148A discloses "a multi-mode infinite flip mechanism". The mechanism is based on four sets of antiparallelogram units and has three motion modes: plane symmetry, spherical motion, and planar motion. Increased difficulty and reduced institutional reliability

Method used

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  • Single-degree-of-freedom dual-mode infinite turnover mechanism
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  • Single-degree-of-freedom dual-mode infinite turnover mechanism

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0033] A kind of single-degree-of-freedom dual-mode infinite flip mechanism, such as figure 1 As shown, it includes the first to third branch chains (1, 2, 3); the first branch chain (1) and the second branch chain (2) are connected through the first right connecting rod (1-3), the second right Rod (1-4), the 3rd left connecting rod (2-1), the 4th left connecting rod (2-2) form rotation connection; The second branch chain (2) and the 3rd branch chain (3) pass through the third Right connecting rod (2-3), the 4th right connecting rod (2-4), the 5th left connecting rod (3-1), the 6th left connecting rod (3-2) form rotation connection; The 3rd branch chain ( 3) and the first branch chain (1) through the fifth right connecting rod (3-3), the sixth right connecting rod (3-4), the first left connecting rod (1-1), the second left connecting rod ( 1-2) Form a rotat...

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Abstract

The invention relates to a single-degree-of-freedom dual-mode infinite turnover mechanism. The mechanism comprises a first branch chain (1), a second branch chain (2) and a third branch chain (3), wherein the first branch chain (1) and the second branch chain (2) are rotationally connected through a first right connecting rod (1-3), a second right connecting rod (1-4), a third left connecting rod(2-1) and a fourth left connecting rod (2-2); the second branch chain (2) is rotatably connected with the third branch chain (3) through a third right connecting rod (2-3), a fourth right connecting rod (2-4), a fifth left connecting rod (3-1) and a sixth left connecting rod (3-2); and the third branch chain (3) is rotationally connected with the first branch chain (1) through a fifth right connecting rod (3-3), a sixth right connecting rod (3-4), a first left connecting rod (1-1) and a second left connecting rod (1-2). Through the connection, the whole mechanism forms a closed loop. The single-degree-of-freedom mechanism has dual motion modes of columnar zooming and infinite overturning, and can be contracted into one beam or unfolded into a polygonal loop; and meanwhile, the scaling ratio of the shape of the polygonal loop to the mechanism can be adjusted by changing the number of shear fork units in the first branch chain (1), the second branch chain (2) and the third branch chain (3).

Description

technical field [0001] The invention relates to the fields of space unfolding, aviation and aerospace, in particular to a single-degree-of-freedom dual-mode infinite turning mechanism. Background technique [0002] This type of single-degree-of-freedom dual-mode infinite turning mechanism has dual motion modes of columnar scaling and infinite turning, which can be contracted into a bundle or expanded into a polygonal loop, and the shape and mechanism of the polygonal loop of the mechanism can be changed by adjusting the number of scissor units Overall zoom ratio. This type of mechanism is a single-degree-of-freedom motion in any mode, and has the characteristics of simple structure, rich deformation, and high reliability. [0003] Chinese patent CN 111152194A discloses "a single-degree-of-freedom infinite overturning mechanism". weak. Chinese patent CN111089148A discloses "a multi-mode infinite flip mechanism". The mechanism is based on four sets of antiparallelogram unit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H21/46B64G1/22
CPCF16H21/46B64G1/222
Inventor 姚燕安刘然李锐明
Owner BEIJING JIAOTONG UNIV
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