Large-caliber vacuum sealing optical window component

Abstract

The invention discloses a large-caliber vacuum sealing optical window component. The large-caliber vacuum sealing optical window component comprises an optical window glass, an inner flange, an outer flange, a fixing belt, six fixing blocks, and two sealing rings; a thread hole used for hoisting and overturning in the process of assembling is arranged on the side wall of the inner flange; the outside of an inner flange disk is evenly distributed with counter holes and interface flanges for connecting space circular mould devices; the middle side of the inner flange disk is provided with a groove used for limiting the radial movement of the fix fixing blocks; meanwhile, the thread holes arranged at the upper and lower directions in the groove are used for respectively screwing fix fixing blocks, and left and right direction thereof are provided with screw hole fixing suspenders; the inside of the inner flange disk is provided with a swallow-tail shaped sealing groove, and an optical window glass is statically sealed by means of an O-shaped sealing ring; the inside of the inner flange disk is provided with a square sealing groove for installing a square sealing ring, so that the optical window glass can be pressed by the outer flange under the air and vacuum environments, and the gap between the outer flange and the fixing block is changed.

Description

technical field [0001] The invention belongs to the technical field of space environment simulation, and in particular relates to a key device for effectively passing light through simulated solar radiation in a simulated space. Background technique [0002] The large-aperture vacuum-sealed optical window assembly is derived from the development mission of a large-scale solar simulator and is used in conjunction with space environment simulation equipment. It is an important part of the solar simulator, which is responsible for introducing the light radiation of the large solar simulator into the space environment simulator and vacuum sealing. The diameter of the optical window glass is very large, the processing size reaches Φ934mm, and the light aperture is about Φ840mm, which puts forward high requirements on optical materials, processing, optical-mechanical structure settings, and stability of the application process. The conventional vacuum-sealed optical window is fixe...

AI Technical Summary

Problems solved by technology

The optical window structure can ensure the normal operation of the smaller-diameter optical window assembly; however, through simulation calculations and experimental verification, for the above-mentioned large-diameter optical window glass with a processing size of Φ934mm and a mass of about 125kg, it is easy to cause damage in actual use. The structural deformation of the outer flange affects the sealing effect between the optical window glass and the inner flange and the reliability of the installation of the optical window glass, thus making the optical window assembly invalid

[0004] In view of the technical problems of existing conventional vacuum-sealed optical window assemblies, it is difficult to apply to the vacuum sealing of large-diameter optical window glass

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