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Long-life tensioning mechanism for flexible solar cell wing

A flexible solar cell and tensioning mechanism technology, applied in the field of space vehicles, can solve the problems of inability to meet the needs of high-power space vehicles, limited deployment area, and large retraction envelope, and achieves light weight, reliable movement, and long working life. Effect

Pending Publication Date: 2021-11-09
SHANGHAI AEROSPACE SYST ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the solar battery wings used in my country's space vehicles are all rigid or semi-rigid solar battery wings, which cannot meet the needs of high-power space vehicles due to the large retractable envelope and limited expansion area.

Method used

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  • Long-life tensioning mechanism for flexible solar cell wing
  • Long-life tensioning mechanism for flexible solar cell wing
  • Long-life tensioning mechanism for flexible solar cell wing

Examples

Experimental program
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Effect test

Embodiment

[0047] figure 1 It is a three-dimensional diagram of the structural composition of the long-life tensioning mechanism, figure 2 It is a cross-sectional view of the structure of the long-life tensioning mechanism. The long-life tensioning mechanism includes a rotating shaft assembly 1 , a bearing 2 , a contact flat scroll spring 3 , a housing assembly 4 , a winding wheel assembly 5 , a wire rope 6 and a pulley assembly 7 . The bottom surface of the housing assembly 4 is installed on the upper box of the flexible solar battery wing; the rotating shaft assembly 1 is installed in the housing assembly 4 through two bearings 2, and the rotating shaft assembly 1 can rotate flexibly relative to the housing assembly 4; The inner end of the contact planar scroll spring 3 is connected to the shaft assembly 1, and the outer end is connected to the housing assembly 4; the winding wheel assembly 5 is connected and fixed to the shaft assembly 1; the pulley assembly 7 is mounted on the hous...

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Abstract

The invention relates to a long-life tensioning mechanism for a flexible solar cell wing. The mechanism comprises a rotating shaft assembly, a bearing, a contact type plane volute spring, a shell assembly, a reel assembly, a steel wire rope and a pulley assembly. After the flexible solar cell wing is completely unfolded, a stretching mechanism drives an upper box body to continue to stretch, the steel wire rope is pulled out of the reel assembly, the reel assembly rotates, the contact type plane volute spring is wound tightly, spring torque is converted into tensile force on the flexible solar cell wing through the rotating shaft assembly, the reel assembly and the steel wire rope, and therefore, the flexible solar cell wing is ensured to have sufficient modal frequency. According to the mechanism, the contact type plane volute spring is adopted to provide tensile force for the unfolded flexible solar cell wing, and the mechanism has the advantages of being simple in structure, reliable in movement, long in working life, adjustable in tensile force, light in weight and the like, and can be applied to the flexible solar cell wing working in orbit for a long time.

Description

technical field [0001] The invention relates to a long-life tensioning mechanism for flexible solar battery wings, which can provide tension force for unfolded flexible solar battery wings, and relates to the technical field of space vehicles. Background technique [0002] At present, the solar battery wings used on my country's space vehicles are all rigid or semi-rigid solar battery wings, which cannot meet the needs of high-power space vehicles due to the large retracting envelope and limited expansion area. With the continuous development of aerospace technology, flexible solar cell wings with small envelope and high output power have become the development trend of high-power solar cell wings in the future. [0003] After the flexible solar cell wings are unfolded, a tensioning mechanism is needed to provide tension to ensure that the flexible solar cell wings have sufficient modal frequencies. Flexible solar cell wings that work on orbit for a long time will experienc...

Claims

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Application Information

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IPC IPC(8): F16F1/10F16F1/12B65H75/44
CPCF16F1/10F16F1/121B65H75/44Y02E10/50
Inventor 宋佳顾珏华袁伟咸奎成程雷王治易张雷付清山姬鸣唐杰
Owner SHANGHAI AEROSPACE SYST ENG INST
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