Foldable and shrinkable anti-dust device for large-aperture horizontal telescope

A dust-proof device and telescope technology, applied in telescopes, optics, instruments, etc., can solve the problems of affecting the dust-proof effect, dust and particles falling into the telescope, etc., and achieve the effect of simple structure, light weight and long life

Active Publication Date: 2017-05-31
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that dust and particles on adjacent cover plates may fall into the telescope when the cover plate of the large-aperture telescope shrinks, thereby affecting the dust-proof effect, the present invention provides a collapsible and shrinkable large-aperture horizon telescope. type dustproof device

Method used

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  • Foldable and shrinkable anti-dust device for large-aperture horizontal telescope
  • Foldable and shrinkable anti-dust device for large-aperture horizontal telescope
  • Foldable and shrinkable anti-dust device for large-aperture horizontal telescope

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Embodiment Construction

[0032] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0033] Such as figure 1 with figure 2 As shown, the collapsible and retractable dustproof device of the large-diameter horizon telescope includes a stepping motor 1, a coupling 3, a transmission shaft 5, a transmission shaft skin 6, a bevel gear 7, a screw support 8, and an opening limit Switch 9, elastic skin cavity skin 10, limit switch 11, leading screw reinforced support 12, telescope cross 15, leading screw 16, U-shaped fixing plate 17, leading screw slider 20, limit piece 21, curved Plate 22, channel steel 23, sealing plate 24, elastic bellows hinge 25 and elastic bellows skeleton 26.

[0034] Dustproof device also comprises motor support 2, bevel gear fixed seat 18 and leading screw fixed seat 19, and motor support 2, bevel gear fixed seat 18 and leading screw fixed seat 19 are installed on the telescope four-way 15; Installed on the motor sup...

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Abstract

The invention provides a foldable and shrinkable anti-dust device for a large-aperture horizontal telescope, belongs to the technical field of dust prevention of primary mirrors of large telescopes and solves the technical problem that the anti-dust effect is affected by possible falling of dust and particulates on an adjacent cover plate into the telescope during shrinking of a cover plate of the large-aperture telescope. A stepper motor of the device drives drive shafts to rotate, power is transmitted to screw rods on two sides through two bevel gears, the screw rods are enabled to rotate, screw rod sliders move linearly along the screw rods, seal plates, elastic bellows folds and elastic bellows skeletons are driven to move linearly simultaneously, and shrinking and opening of the anti-dust device are realized. On the basis of shrinkable dust prevention, the foldable and shrinkable anti-dust device is made of lighter materials, a foldable cover plate is made of polyester fiber folds and PVC skeletons, the folds and the skeletons are integrally connected in a hot melt manner, wind load is avoided, balance of the telescope is not damaged, and the foldable and shrinkable anti-dust device has the characteristics of simple structure, good sealing performance, light weight and long service life.

Description

technical field [0001] The invention belongs to the technical field of dustproofing of the main mirror of a large-scale telescope, and in particular relates to a foldable and shrinkable dustproofing device for a large-caliber horizon telescope. Background technique [0002] The site of the telescope is generally located in the Gobi or desert area, where there are many windy sand and dust. With the accumulation of time, the sand and dust are easy to adhere to the surface of the primary mirror, thus contaminating the mirror surface. Although cleaning technology is used for regular cleaning, the number of cleanings is too much Not only will the reflectivity decrease, but the steps are complicated and the cost is high. In order to prevent foreign matter accidentally falling into the telescope and causing permanent damage or damage to the telescope's main reflector, it is necessary to design a separate dust-proof component to protect the telescope's main reflector. [0003] At p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B23/16G02B23/20
CPCG02B23/16G02B23/20
Inventor 王富国乔兵王文攀
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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