Shear type unit imitation cobweb space expandable mechanism

A scissor unit and spider web technology, applied in the direction of folding antennas, etc., can solve the problems of unexpandable folding units, large folding ratio, single degree of freedom, low strength and rigidity of the mechanism, and achieve high rigidity, less driving, and easy deployment stable effect

Active Publication Date: 2018-11-20
GUANGXI UNIV
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  • Application Information

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Problems solved by technology

[0004] Chinese patent 201210310520.3 discloses a planar array expandable mechanism based on square units, which has a small folding ratio and is plane folded; Chinese patent 201210397908.1 discloses a regular tetrahedral symmetrical expandable mechanism unit. It is convenient to unfold and fold, but the strength and rigidity of the mecha

Method used

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  • Shear type unit imitation cobweb space expandable mechanism
  • Shear type unit imitation cobweb space expandable mechanism
  • Shear type unit imitation cobweb space expandable mechanism

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Embodiment Construction

[0026] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Such as Figure 1 to Figure 8 As shown, the space expandable mechanism based on the scissor unit imitating spider web in the present invention includes the expandable unit and the machine base 1, and is characterized in that the specific structure and connection relationship are as follows:

[0028] The expandable unit includes a first expandable unit A, a second expandable unit B, a third expandable unit C, a fourth expandable unit D and a fifth expandable unit E;

[0029] The first expandable unit A includes a first drive rod 3, a second drive rod 10, a first hinge 2, a second hinge 4, a third hinge 11, a fourth hinge 9, a first link 5, a second link Rod 8 and scissor unit, one end of the first driving rod 3 is connected to the machine base 1 through a pin shaft, and at the same time connected to the first hinge 2 th...

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Abstract

Disclosed is a shear type unit imitation cobweb space expandable mechanism. The shear type unit imitation cobweb space expandable mechanism comprises expandable units and a machine base, wherein eachexpandable unit comprises a driving rod, a hinge, a connecting rod and a shear type unit; and the machine base is a pentagonal machine base. The five expandable units are annularly arrayed on the samemachine base; one driving rod can be shared between every two adjacent expandable units; the first hinge sleeved on the driving rod is connected with the second hinge to form a closed loop space expandable mechanism; and the space expandable mechanism has a freedom degree, the required driving is small, the control is simple, and the expandable units are connected through two hinges, so that themechanism has the advantages of being high in rigidity and strength, stable in mechanism unfolding, light in structure weight and high in folding ratio, and is suitable for the fields of space plane satellite launching antennas, space satellite parabolic antennas and the like.

Description

technical field [0001] The invention relates to the field of space unfolding mechanisms, in particular to a space expandable mechanism based on a scissor unit imitating a spider web. Background technique [0002] Spider webs usually have symmetry and asymmetry, and are an extremely regular web. The flexibility and strength of the web are greater than steel wires in the same volume, so they are extensible; spider webs can form different shapes according to different environments. , the structure of the whole net is stable and firm, which can make the impact force received by each symmetrical net evenly distributed on the whole net. [0003] 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 s...

Claims

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Application Information

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IPC IPC(8): H01Q1/08
Inventor 王汝贵李毅张磊张林贝子方正
Owner GUANGXI UNIV
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