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A class of single-degree-of-freedom dual-mode infinite flip mechanism

A technology of flipping mechanism and degrees of freedom, applied in the fields of aerospace, space folding, and aviation, can solve the problems of increased control difficulty, reduced reliability of the mechanism, weak ductility of the structure, etc., to achieve a simple structure, easy to process and manufacture. Effect

Active Publication Date: 2022-04-12
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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  • A class of single-degree-of-freedom dual-mode infinite flip mechanism
  • A class of single-degree-of-freedom dual-mode infinite flip mechanism
  • A class of single-degree-of-freedom dual-mode infinite flip 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 the third scissors branch chain (1, 2, 3); the first scissors branch chain (1) and the second scissors branch chain (2) pass through the first right connecting rod (1-3 ), the second right connecting rod (1-4), the third left connecting rod (2-1), the fourth left connecting rod (2-2) to form a rotational connection; the second scissors branch chain (2) and the third The scissor branch chain (3) passes through the third right connecting rod (2-3), the fourth right connecting rod (2-4), the fifth left connecting rod (3-1), the sixth left connecting rod (3-2 ) to form a rotational connection; the third scissors branch chain (3) and the first scissors branch chain (1) pass through the fifth right connecting rod (3-3), the sixth right c...

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Abstract

The invention relates to a single-degree-of-freedom double-mode infinite turning mechanism. These mechanisms all include first to third scissor branch chains (1, 2, 3), and the first scissor branch chain (1) and the second scissor branch chain (2) pass through the first and second right connecting rods. (1‑3, 1‑4), the third and fourth left connecting rods (2‑1, 2‑2) realize the rotational connection; the second scissor branch chain (2) and the third scissor branch chain (3) Through the third and fourth right connecting rods (2-3, 2-4), the fifth and sixth left connecting rods (3-1, 3-2) to realize the rotational connection; the third scissors branch chain (3) and The first scissors branch chain (1) realizes rotational connection by the fifth and sixth right connecting rods (3-3, 3-4), the first and the second left connecting rods (1-1, 1-2); The above connection, the whole mechanism forms a closed loop. This type of single-degree-of-freedom mechanism has a dual motion mode of columnar scaling and infinite flipping, which can be contracted into a bundle or expanded into a polygonal loop; at the same time, by changing the first to third scissor branches (1, 2, 3) The number of scissor elements, which can adjust the scaling ratio of the polygonal loop shape and the mechanism.

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 Patents(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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