Flexible support column and center bearing supported filter wheel mechanism

A flexible support and center bearing technology, applied in optics, cameras, optical components, etc., can solve the problems of structural damage and large structural response, and achieve the effect of good flexible buffering effect, high supporting strength, and avoiding collision damage.

Pending Publication Date: 2020-07-24
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The filter wheel supported by the center bearing is easy to install, but because it is only supported and constrained at the center of the filter wheel, the structural response is relatively large under mechanical vibration conditions, and the structure is very likely to damage occurred

Method used

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  • Flexible support column and center bearing supported filter wheel mechanism
  • Flexible support column and center bearing supported filter wheel mechanism
  • Flexible support column and center bearing supported filter wheel mechanism

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Embodiment Construction

[0039] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] Such as figure 1 As shown, the flexible support column provided by the present invention includes a columnar body 1, and the structural forms of the columnar body 1 are many. In this embodiment, a straight quadrangular prism is selected as the columnar body 1, and its cross-section is square. Considering the strength, specific stiffness and thermal expansion comprehensively factor and other factors, the columnar body 1 is made of titanium alloy material.

[0041] The columnar body 1 is provided with a plurality of notches 2 along the section from top to bottom, and the notches 2 are all set close to the top of the columnar body 1 . In order to ensure the strength of the flexible supporting column, the opening directions of the notches 2 are not arranged in the same direction, especially it is better that the opening directions of the ...

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Abstract

The invention relates to an optical precision instrument for a space camera, and specifically discloses a flexible support column and a center bearing supported filter wheel mechanism, so as to solvethe problem existing in the existing technology that the structure response of the center bearing supported filter wheel mechanism is large and easy to be damaged under the condition of a large numberof mechanical vibrations. The flexible support column includes a columnar body, which is provided with a plurality of notches along the cross section from top to bottom, and the plurality of notchesare arranged close to the top of the columnar body; the top of the columnar body is provided with a flexible cushion for shock absorption. The center bearing supported filter wheel mechanism includesa fixed frame and a filter wheel, the filter wheel is mounted on the bottom plate of the fixed frame through the central bearing, a plurality of the above-mentioned flexible support columns are arranged between the filter wheel and the bottom plate, the bottom end of the flexible support column is fixed on the bottom plate, and a gap is provided between the top end and one side of the filter wheel.

Description

technical field [0001] The invention relates to an optical precision instrument for a space camera, in particular to a flexible support column and a central bearing support type filter wheel mechanism. Background technique [0002] As an important payload of remote sensing satellites, space cameras are widely used in many fields such as weather forecasting, resource exploration, and environmental monitoring. In order to improve the resolution of specific crops, oceans, atmosphere, soil and other targets, space cameras mostly use multi-spectral imaging technology, and switch imaging spectral bands through some specific color filters. The filter wheel mechanism of disc type is a relatively common filter instrument. The filter wheel is the key component of the filter wheel mechanism. There are several filters on it. The filter wheel rotates to make different filters By aligning the light sheets with the light path, multispectral imaging can be realized. [0003] There are gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/00G03B17/14
CPCG02B7/006G03B17/14
Inventor 宋扬沈泽轶张向辉辛伟
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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