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Unfoldable unit of triangular prism and unfoldable support arm consisting of unfoldable units

A triangular prism and folding arm technology, applied in the field of support arms, can solve the problems of large folding volume and low repeated unfolding accuracy, and achieve the effects of high storage rate, enhanced overall rigidity and repeated unfolding accuracy, and light weight

Inactive Publication Date: 2013-02-13
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of large folding volume and low precision of repeated deployment in the existing articulated support arm

Method used

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  • Unfoldable unit of triangular prism and unfoldable support arm consisting of unfoldable units
  • Unfoldable unit of triangular prism and unfoldable support arm consisting of unfoldable units
  • Unfoldable unit of triangular prism and unfoldable support arm consisting of unfoldable units

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Experimental program
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specific Embodiment approach 1

[0010] Specific implementation mode one: combine Figure 1-Figure 5 Describe this embodiment, a triangular prism foldable unit of this embodiment, it includes upper triangular frame 1, lower triangular frame 2, three triangular prism folding arms 3 and three groups of triangular prism cable assemblies 4, upper triangular frame 1 and the lower triangular frame 2 are arranged in parallel from top to bottom, and the positions of the three vertices of the upper triangular frame 1 correspond to the positions of the three vertices of the lower triangular frame 2, and the corresponding positions between the upper triangular frame 1 and the lower triangular frame 2 Each top corner is supported and rotatably connected by a triangular prism folding arm 3 respectively, and the diagonal positions in the rectangular plane formed between the upper triangular frame 1, the lower triangular frame 2 and two adjacent triangular prism folding arms 3 One set of triangular prism cable assembly 4 is...

specific Embodiment approach 2

[0012] Specific implementation mode two: combination Figure 1-Figure 3 Describe this embodiment, the triangular prism folding arm 3 of this embodiment includes the unit upper folding arm 5, the unit lower folding arm 6, the unit limit block 7, the unit spring 8, the unit lock frame 9, the unit lock body 10 and the unit taper pin 11. The adjacent ends of the unit upper folding arm 5 and the unit lower folding arm 6 are rotatably connected, the unit limit block 7 is fixed on the lower part of the unit upper folding arm 5, and the unit lock frame 9 is rotatably arranged on the unit upper folding arm 5 and located at the lower end of the unit limit block 7, the unit spring 8 is set on the unit lock frame 9, the unit taper pin 11 is fixed on the lower end of the unit lock frame 9, and the unit lock body 10 is fixed on the upper end of the unit lower folding arm 6 , The unit lock body 10 is provided with a taper hole matching the size of the unit taper pin 11 . In this way, the lo...

specific Embodiment approach 3

[0013] Specific implementation mode three: combination Figure 1-Figure 3 To illustrate this embodiment, the unit lock frame 9 of this embodiment includes a unit horizontal shaft 12, a unit vertical shaft 13 and a unit "ten" connecting block 14, and the unit horizontal rotating shaft 12 is horizontally installed on the unit "ten" connecting block 14 On the top, the unit vertical shaft 13 is vertically installed on the upper end of the unit "ten" connecting block 14, the unit spring 8 is set on the unit vertical shaft 13, and the unit taper pin 11 is fixed on the unit "ten" connecting block 14 the lower end. Such setting is convenient and flexible to use. Other compositions and connections are the same as those in the second embodiment.

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Abstract

The invention discloses an unfoldable unit of a triangular prism and an unfoldable support arm consisting of the unfoldable units, solving the problems that the existing hinged type support arm is large in folded size and low in repeated unfolding precision. According to the unfoldable unit, an upper triangular frame and a lower triangular frame are arranged from top to bottom in parallel; each corresponding top angle between the upper triangular frame and the lower triangular frame is respectively supported by a triangular prism folding arm and is rotatably connected with the triangular prism folding arm; a group of triangular prism inhaul cable assembly is arranged at the inner opposite angle of a rectangular plane formed by the upper triangular frame, the lower triangular frame and two adjacent triangular prism folding arms; and each two adjacent triangular prism unfoldable units are rotatably connected through a transit unfolding component. With the adoption of the inhaul cable component provided by the invention, the problem that inhaul cables at opposite corners are wound and move irregularly; and meanwhile the overall rigid and the repeated unfolding precision of the support arm are enhanced. The unfoldable unit is used in a satellite, a space station and a space probe.

Description

technical field [0001] The invention relates to a foldable unit and a support arm composed of the foldable unit, in particular to a triangular prism foldable unit and a foldable support arm composed of the foldable unit, belonging to the aerospace field The one-dimensional space repeatable expandable mechanism. Background technique [0002] In all kinds of space exploration activities and in the construction of space stations, the space expandable structure is inseparable, and the space extension arm, as the most abundant, earliest researched and most widely used one-dimensional space expansion mechanism in the space expandable structure, plays an important role. character of. The space extension arm is mainly used to expand flexible solar panels in various space exploration activities; support expandable antennas, synthetic aperture radars, space telescopes, etc. With the rapid development of space activities such as space exploration, earth observation, ocean exploration...

Claims

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Application Information

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IPC IPC(8): B64G1/22B64G1/66H01L31/042H02S20/30
CPCY02E10/50
Inventor 邓宗全单明贺刘荣强郭宏伟王岩
Owner HARBIN INST OF TECH
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