Roller shutter type sun-shading and dust-preventing mechanism based on torsion spring driving and capable of moving in reciprocating mode

A reciprocating motion, rolling shutter technology, used in transportation and packaging, motor vehicles, spaceflight equipment, etc., can solve problems such as the generation of space junk, and achieve the effect of improving reliability and ensuring state consistency.

Inactive Publication Date: 2021-02-02
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The unfolded type uses a hinge mechanism to unfold the shielding structure, and the shielding structure is fixed at a specific position after unfolding. Since a certain space is required after unfolding, it is necessary to avoid this area when laying out the whole machine; the throw-away structure is subject to certain precautions in the closed state. Tightening force, after unlocking by command, the shielding structure will be thrown away directly under the action of pre-tightening force, resulting in the generation of space junk

Method used

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  • Roller shutter type sun-shading and dust-preventing mechanism based on torsion spring driving and capable of moving in reciprocating mode
  • Roller shutter type sun-shading and dust-preventing mechanism based on torsion spring driving and capable of moving in reciprocating mode
  • Roller shutter type sun-shading and dust-preventing mechanism based on torsion spring driving and capable of moving in reciprocating mode

Examples

Experimental program
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Embodiment Construction

[0020] The protected area of ​​this mechanism is about 1090×730, and the protected area can be adjusted by adjusting the size of the roller and the roller blind. The roller blind is made of polyimide aluminized double-mirror composite film material, and the front and back directions of the double-mirror can be adjusted according to the external heat flow. The reel assembly and bracket are connected with the main body of the product to be protected by screws, the roller blind and reel assembly are bonded by silicon rubber, and the roller shutter and slide bar assembly are connected by screws. Bearings are deep groove ball bearings. The specific implementation is as follows:

[0021] 1. Install the guide rail at the corresponding position of the product to be protected. It is required that the installation surface of the guide rail of the protected product is smooth and flat. The right angle between the upper surface and the side is blunt. , the distance between the lower surf...

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Abstract

The invention relates to the related fields of space cryogenic refrigeration and spacecraft. The invention provides a roller shutter type sun-shading and dust-preventing mechanism based on torsion spring driving and capable of moving in a reciprocating mode. The mechanism is a roller shutter type space external heat flow shielding and dust-preventing mechanism based on torsion spring driving and having electromagnetic valve locking and unlocking functions. The mechanism is compact in structure, does not occupy external space after being unfolded, and does not need to be additionally powered onin the unfolding process based on the scheme of torsional spring pre-tightening force driving, and energy is saved; the roller shutter has a heat dissipation function, the temperature of the roller shutter can be reduced while heat flow outside the space is shielded; the low-emissivity surface facing one side of the instrument can reduce heat radiation of the roller shutter to the instrument, sothat a good heat environment can be provided for the instrument, and a new solution is provided for shielding of the heat flow outside the space and anti-pollution design.

Description

technical field [0001] The invention relates to the related fields of space low-temperature refrigeration and space vehicles, and in particular relates to a roller-shutter-type heat flow shielding and anti-pollution mechanism outside space with electromagnetic locking and unlocking functions. Background technique [0002] The low-temperature refrigeration system (or other components) installed on the space vehicle is sensitive to external heat flow and condensable volatiles. In order to avoid the adverse effects of these factors on the performance of the aircraft, a deployable mechanism is needed to shield the space from heat flow and prevent pollution. function, and the unfolding mechanism has the function of unlocking by command. At present, there are generally two types of similar structures: expansion type and throw-off type. The unfolded type uses a hinge mechanism to unfold the shielding structure, and the shielding structure is fixed at a specific position after unfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/22B64G1/58B64G1/52
CPCB64G1/22B64G1/58B64G1/52
Inventor 杨晓峰刘恩光陆燕董德平李忠刘丁臻章飚
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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