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High-precision displacement device for focal plane of space-borne imaging instrument

A technology of displacement device and instrument focus, which is applied in the direction of supporting machines, γ-ray or X-ray microscopes, nuclear engineering, etc., can solve the problems of small controllable range, high development cost, complex structure, etc., and achieve simple control, compact structure, small size effect

Inactive Publication Date: 2015-03-18
NAT SPACE SCI CENT CAS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of complex structure, large volume, small stroke, small controllable range and high development cost of the focal plane displacement device used in the prior art space-borne imaging equipment, the present invention provides a space-borne Imaging instrument focal plane high-precision displacement device

Method used

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  • High-precision displacement device for focal plane of space-borne imaging instrument
  • High-precision displacement device for focal plane of space-borne imaging instrument

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Embodiment Construction

[0024] A high-precision displacement device for the focal plane of a spaceborne imaging instrument according to the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] The worm gear drive mechanism of the present invention is driven by a stepper motor 101, and the worm 103-a is concentrically installed and fixed on the motor shaft with the stepper motor 101, and the inner wall of the hollow worm gear 103-b is connected with the inner wall of the cylindrical hollow internal thread sleeve 105. The bottom outer walls are tightly fitted together. The inner wall of the thin-walled bearing 202 is fixed on the raised hollow cylindrical bracket 201 of the installation base 106 , and the outer wall of the thin-walled bearing 202 is tightly fitted with the inner wall of the cylindrical hollow internal thread sleeve 107 . Described limit mechanism 104 comprises the Z-shaped slide block that instrument mounti...

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Abstract

The invention provides a high-precision displacement device for a focal plane of a space-borne imaging instrument. The device is used for displacing a displaced imaging sensor of an imaging instrument for celestial imaging or solar imaging to a focal plane of a camera. The device comprises a stepping motor and is characterized in that the device further comprises a worm, a hollow turbine, a cylindrical hollow internal thread sleeve and a cylindrical hollow external thread sleeve; the upper surface of the cylindrical hollow external thread sleeve constitutes an annular instrument installation platform; the hollow turbine, the cylindrical hollow internal thread sleeve and the cylindrical hollow external thread sleeve are arranged coaxially to form a hollow vertical channel, of which the diameter is greater than 15mm; the stepping motor drives the worm to rotate and the worm drives the hollow turbine engaging therewith to rotate; and the hollow turbine further drives the cylindrical hollow internal thread sleeve fixedly and coaxially arranged inside the hollow turbine to rotate synchronously, and the rotated internal thread sleeve makes the external thread sleeve sleeved on the upper part of the internal thread sleeve shift up and down under the control of a limiting mechanism through thread coupling.

Description

technical field [0001] The invention relates to a high-precision displacement device, in particular to a high-precision displacement device for the focal plane of a spaceborne imaging instrument. Background technique [0002] When spaceborne imaging instruments experience transportation, launch and space temperature changes, the focal plane will deviate from the original position, resulting in blurred imaging when working in orbit. Therefore, the advanced high-precision imaging instruments currently in orbit basically have focal planes. Plane displacement device, if the image is found to be blurred, the imaging sensor will be re-displaced to the camera focal plane through the ground remote control to obtain high-quality images. [0003] Among the dozens of satellites launched so far, only the solar X-ray imaging telescope on the SOLAR-B satellite has the function of focal plane adjustment. The micro-displacement adjustment of the focal plane of the solar X-ray imaging teles...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21K7/00F16M11/04F16M11/18
Inventor 李保权朱光武林强彭吉龙张鑫杨双董永进李小银
Owner NAT SPACE SCI CENT CAS
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