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A large-space deployable mechanism base on a rigid hinge connection of a shear folding unit

A hinge connection, large space technology, applied in the direction of motor vehicles, aerospace equipment, aerospace vehicles, etc., can solve the problems of small folding ratio, low rigidity, poor stability, etc., to achieve small impact, simple composition, The effect of high reliability

Active Publication Date: 2018-12-21
GUANGXI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to avoid the deficiencies of the prior art and overcome its shortcomings of small folding ratio, poor stability, and low rigidity and strength, the present invention provides a large-space expandable mechanism based on a scissor-type folding unit rigid hinge connection, which has a large space folding ratio, The mechanism has the characteristics of high rigidity, good stability, simple assembly, small impact and high reliability, and has good practicability

Method used

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  • A large-space deployable mechanism base on a rigid hinge connection of a shear folding unit
  • A large-space deployable mechanism base on a rigid hinge connection of a shear folding unit
  • A large-space deployable mechanism base on a rigid hinge connection of a shear folding unit

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specific Embodiment approach 1

[0042] Specific implementation mode one: as Figure 1 to Figure 4 As shown, the mechanism connects two scissor-type folding units through a rigid hinge B, from the fully unfolded state to the half-folded state and then to the fully folded state. The pin shaft seat on each side of the lower layer of the machine base 1 passes through the pin shaft and the first group of support rods P1, the second group of support rods P2, the third group of support rods P3, the fourth group of support rods P4 and the fifth group of support rods P5. One rod L1 is connected, the second rod L2 is connected with the support seat P6 through the pin shaft, and one end of the third rod L3 is connected with the connecting frame rod through the pin shaft; when the support rod shrinks, the third rod P3 is driven movement, thereby driving the scissors folding and unfolding unit to perform folding and retracting movement; through the function of rigid hinge B connection, it drives the whole mechanism to pe...

specific Embodiment approach 2

[0043] Specific implementation mode two: as Figure 5 to Figure 6 As shown, the mechanism is connected by ten rigid hinges B and arrayed to form a large space ring mechanism, from the fully unfolded state to the fully folded state, the folding and unfolding method of the mechanism is the same as the method of the first embodiment.

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Abstract

A large space deployable mechanism with rigid hinge connection base on a shear folding unit includes a scissor folding unit and a rigid hinge, the scissor folding unit comprises a deployable module and a support frame, The deployable module is composed of a frame, a connecting rod, a hinge and a connecting rod, two hinges are nested on the connecting rod, the hinge is connected with the connectingrod through a pin shaft, and the supporting frame is composed of a first group of supporting rods, a second group of supporting rods, a third group of supporting rods, a fourth group of supporting rods, a fifth group of supporting rods and a supporting seat. The invention has the characteristics of large space folding ratio, large mechanism rigidity strength, stable folding and unfolding, simpleassembly, small impact, good stability and high reliability, and has good practicability.

Description

technical field [0001] The invention relates to the field of space unfolding mechanisms, in particular to a large-space expandable mechanism based on scissor-type folding units connected by rigid hinges. Background technique [0002] With the vigorous development of the aerospace industry, the exploration of outer space is gradually deepening. It is necessary to carry different spacecraft support frames to outer space to perform corresponding tasks. However, due to the limited space for rocket transportation, this requires the organization to be in a folded or folded state. It is fixed in the transport load compartment, and then unfolded into a mechanism after entering the predetermined trajectory, so the mechanism can be deployed to become a significant feature of many spacecraft or large-diameter antennas. At present, many space folding mechanisms can be deployed through a combined array of folding units or topological composition. [0003] Chinese patent 201410252517.X d...

Claims

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Application Information

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Patent Type & Authority Applications(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
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