A multi-mode infinite turning mechanism

Abstract

The invention provides a multi-mode infinite overturning mechanism. The multi-mode infinite overturning mechanism comprises a first anti-parallelogram unit (A), a second anti-parallelogram unit (B), athird anti-parallelogram unit (C), a fourth anti-parallelogram unit (D), wherein the first anti-parallelogram unit (A) and the second anti-parallelogram unit (B) are rotatably connected through first, second, seventh and eighth connecting joints (A-1-1, A-1-2, B-2-1 and B-2-2) of first and fourth tail end rods (A-1 and B-2); the second anti-parallelogram unit (B) and the third anti-parallelogramunit (C) are rotatably connected through fifth, sixth, eleventh and twelfth connecting joints (B-1-1, B-1-2, C-2-1 and C-2-2) of third and sixth tail end rods (B-1 and C-2); the third anti-parallelogram unit (C) and the fourth anti-parallelogram unit (D) are rotatably connected through ninth, tenth, fifteenth and sixteenth connecting joints (C-1-1, C-1-2, D-2-1 and D-2-2) of fifth and eighth tailend rods (C-1 and D-2); and the fourth anti-parallelogram unit (D) and the first anti-parallelogram unit (A) are rotatably connected through thirteenth, fourteenth, third and fourth connecting joints(D-1-1, D-1-2, A-2-1 and A-2-2) of seventh and second tail end rods (D-1 and A-2). The mechanism can realize infinite overturning, has plane-symmetry, spherical-surface and plane-motion modes, and canbe folded into one plane.

Description

technical field [0001] The invention relates to the fields of space folding and aerospace, in particular to a multi-mode infinite turning mechanism. Background technique [0002] Chinese patent CN101915292B discloses "a single-power rolling spherical four-bar mechanism", which utilizes a space closed-chain four-bar mechanism with a simple structure, and is driven and controlled by a motor to realize the rolling of the circular motion track in the plane, but it can only Roll on a circle. Chinese patent CN103738426A discloses "a dual-mode 16-rod rolling mechanism", which has two modes of rolling mechanisms: a spherical mechanism and a planar mechanism, but the design cannot be infinitely flipped and planar. The present invention connects four antiparallelogram units end to end in order to obtain a space mechanism, which is a multi-mode infinite turning mechanism, which has a plane-symmetric motion mode, a spherical motion mode, and a plane motion mode, and can be used in diff...

AI Technical Summary

Problems solved by technology

[0002] Chinese patent CN101915292B discloses "a single-power rolling spherical four-bar mechanism", which utilizes a space closed-chain four-bar mechanism with a simple structure, and is driven and controlled by a motor to realize the rolling of the circular motion track in the plane, but it can only roll in a circle

Chinese patent CN103738426A discloses "a dual-mode 16-rod rolling mechanism", which has two modes of rolling mechanisms: a spherical mechanism and a planar mechanism, but the design cannot be turned over infinitely and the planar movement mode

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