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A Space Deployable Mechanism Based on Triangular Prism Deployable Element Transformation Rigid Hinge Connection

A technology of hinge connection and triangular prism, which is applied in the direction of motor vehicles, space navigation equipment, space navigation equipment, etc., can solve the problems of small folding volume, large space folding ratio, high rigidity and strength, etc., and achieve structural unfolding and folding stability, The effect of large space folding ratio, high stiffness and strength

Active Publication Date: 2021-08-27
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent 201210464544.1 discloses a triangular prism foldable unit and a foldable support arm composed of the foldable unit. The mechanism uses a triangular prism as a foldable unit to form a mechanism that can be unfolded and folded stably. But the folding ratio is relatively small, and the expandable unit is single; Chinese patent 201210310520.3 discloses an expandable mechanism based on a square unit plane array.
[0004] At present, there has not been a kind of triangular prism-based expandable structure that can be arrayed to form different spatial topological structures, and has the characteristics of high rigidity, high bearing capacity, stable unfolding and folding of the mechanism, large space folding ratio, and small folded volume. Innovative invention design of space expandable mechanism connected by unit transformation rigid hinge

Method used

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  • A Space Deployable Mechanism Based on Triangular Prism Deployable Element Transformation Rigid Hinge Connection
  • A Space Deployable Mechanism Based on Triangular Prism Deployable Element Transformation Rigid Hinge Connection
  • A Space Deployable Mechanism Based on Triangular Prism Deployable Element Transformation Rigid Hinge Connection

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specific Embodiment approach 1

[0041] Specific implementation mode one: as Figure 1 to Figure 3 Shown is the configuration of the triangular prism space expandable mechanism, and the expansion or contraction of the triangular prism space expandable mechanism is realized by the triangular prism expandable unit. The first group of outer layer scissors members 101, the second group of outer layer scissors members 102 and the fourth group of outer layer scissors members 104 are in the unfolded state, and now the third group of outer layer scissors members 103 are covered by the second group of inner layers The scissors member 202 and the third group of inner layer scissors members 203 are compressed and are in the state of accumulating energy, the fifth group of outer layer scissors members 105 are compressed by the fourth group of inner layer scissors members 204 and the fifth group of inner layer scissors members 205 Compressed and in a state of stored energy, such as figure 1 Shown is a triangular prism ex...

specific Embodiment approach 2

[0042] Specific implementation mode two: as Figure 4 to Figure 6 Shown is the configuration of the quadrangular prism space expandable mechanism, and the unfolding or collapsing of the quadrangular prism space expandable mechanism is realized by the quadrangular prism expandable unit. On the basis of the triangular prism expandable unit, the energy stored in the third group of outer layer scissor members 103 compressed by the second group of inner layer scissor members 202 and the third group of inner layer scissor members 203 is released. At this time, the third group of outer layer scissor members The slide bar 7 of the layer scissors member 103 is stretched and moved outward in the slide bar groove 8, and the entire third group of outer layer scissors members 103 performs an unfolding movement. At this time, the five groups of inner layer scissors members perform synchronous unfolding movement, The whole mechanism is transformed from a triangular prism expandable unit to a...

specific Embodiment approach 3

[0043] Specific implementation mode three: as Figure 7 to Figure 9 Shown is the configuration of the pentagonal prism space expandable mechanism, and the expansion or contraction of the pentagonal prism space expandable mechanism is realized by the pentagonal prism expandable unit. On the basis of the quadrangular prism expandable unit, the energy stored in the fifth group of outer layer scissor members 105 compressed by the fourth group of inner layer scissor members 204 and the fifth group of inner layer scissor members 205 is released. At this time, the fifth group of outer layer scissor members The slide bar 7 of the layer scissors member 105 is stretched and moved outward in the slide bar groove 8, and the entire fifth group of outer layer scissors members 105 is deployed. At this time, the five groups of inner layer scissors members are deployed synchronously. The whole mechanism is transformed from a quadrangle prism expandable unit to a pentagon prism expandable unit,...

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Abstract

A space expandable mechanism based on triangular prism expandable unit transformation rigid hinge connection, including rigid hinge and triangular prism expandable unit, different scissor members of the triangular prism expandable unit can be transformed into different prisms by adjacent angle transformation and expansion The expandable unit, the triangular prism expandable unit can be transformed into a quadrangle prism expandable unit and a pentagonal prism expandable unit, correspondingly forming a triangular prism space expandable machine, a quadrangle prism space expandable mechanism and a pentagonal prism space expandable mechanism. The different prism space expandable mechanisms constructed by the present invention have the characteristics of high rigidity, high bearing capacity, stable unfolding and folding of the mechanism, large space folding ratio, and small folded volume. They can be arrayed into different spatial topological structures through rigid hinges, and are suitable for The field of aerospace vehicle supports.

Description

technical field [0001] The invention relates to the field of space expandable mechanisms, in particular to a space expandable mechanism based on triangular prism expandable unit conversion rigid hinge connection. Background technique [0002] With the vigorous development of the aerospace industry, the exploration of outer space has gradually deepened. Some large-scale spacecraft supports such as radar antenna supports and large-diameter space antenna supports require different types of supports to meet different aerospace needs; At present, many space unfolding mechanisms and supporting frames of spacecraft can form a space unfolding mechanism with stable deployment and large folding ratio through the array or topology of the unfolding units. [0003] Chinese patent 201210464544.1 discloses a triangular prism foldable unit and a foldable support arm composed of the foldable unit. The mechanism uses a triangular prism as a foldable unit to form a mechanism that can be unfold...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/22
CPCB64G1/222
Inventor 王汝贵李毅张磊张林贝子方正
Owner GUANGXI UNIV