Expandable Primary Mirror Mechanism with Large Aperture in Space

A technology with a large space and a large diameter, which is applied in the directions of instruments, installation, optics, etc., can solve the problems such as the difficulty of synchronous deployment of various components, complex and complicated structural settings, and easy shading, so as to avoid the problem of optical path occlusion, the source of driving force is simple, Unfold Motion Simple Effects

Active Publication Date: 2020-10-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a large-diameter expandable primary mirror mechanism to solve the problem that the current large-diameter expandable optical primary mirror is difficult to achieve synchronous deployment and has low deployment accuracy during the deployment process due to the complex and cumbersome structural settings of the current large-diameter expandable optical primary mirror. prone to shading problems

Method used

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  • Expandable Primary Mirror Mechanism with Large Aperture in Space
  • Expandable Primary Mirror Mechanism with Large Aperture in Space
  • Expandable Primary Mirror Mechanism with Large Aperture in Space

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specific Embodiment approach 1

[0028] Specific implementation mode one: combine figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 with Figure 8 Describe this embodiment, which includes a linkage device 3, a deployment locking device and N groups of block mirror bodies 1, and the N groups of block mirror bodies 1 are uniformly arranged around the linkage device 3, and the deployment locking device The device includes N first hinges 2-1, N second hinges 2-2, N third hinges 2-3 and N fourth hinges 2-4, two groups of adjacent block mirrors The top of the body 1 is connected by a first hinge 2-1, and the bottoms of two adjacent groups of block mirror bodies 1 are connected by a second hinge 2-2, and each group of block mirror bodies 1 includes two Two sub-mirrors 1-1 are arranged side by side between the two sub-mirrors 1-1, the tops of the two sub-mirrors 1-1 are connected by a third hinge 2-3, and the bottoms of the two sub-mirrors 1-1 are connected by a fourth hinge Devic...

specific Embodiment approach 2

[0030] Specific implementation mode two: combination Figure 1 to Figure 6Describe this embodiment, in this embodiment the structure of the first hinge 2-1, the structure of the second hinge 2-2, the structure of the third hinge 2-3 and the structure of the fourth hinge 2-4 are the same , the third hinge 2-3 includes a female hinge 2-3-1, a male hinge 2-3-2, a spring locking piece 2-3-3, a limiter 2-3-4, and a connecting shaft part 2- 3-5 and spring 2-3-6, the female hinge 2-3-1 and the male hinge 2-3-2 are hinged through the connecting shaft part 2-3-5, and the spring 2-3-6 is set on The connecting shaft part 2-3-5 is closely attached to the female hinge 2-3-1 and the male hinge 2-3-2, and the female hinge 2-3-1 is provided with a limiting member 2-3- 4. The limit piece 2-3-4 is provided with a spring locking piece 2-3-3, when the female hinge 2-3-1 and the male hinge 2-3-2 are made through the connecting shaft part 2-3-5 During the folding action, the female hinge 2-3-1 is...

specific Embodiment approach 3

[0035] Specific implementation mode three: combination figure 1 , figure 2 with image 3 Describe this embodiment, the sub-mirror 1-1 in this embodiment includes a mirror frame 1-1-1, a lens adjustment device 1-1-2 and several lenses 1-1-3, and the mirror frame 1-1- 1 is provided with a lens adjusting device 1-1-2, and several lenses 1-1-3 are arranged on the lens adjusting device 1-1-2.

[0036] In this embodiment, the mirror frame 1-1-1 plays the role of supporting the lens adjusting device 1-1-2 and several lenses 1-1-3. The lens adjusting device 1-1-2 is a fine-tuning device for adjusting the rotation angle of the lens 1-1-3, specifically an ultrasonic motor or a driver made of piezoelectric ceramics. The setting of the lens adjusting device 1-1-2 enables several lenses 1-1-3 to be adjusted in time and effectively after the position of the segmented mirror body 1 is slightly changed from the folding action to the unfolding action, so as to ensure that the space main mi...

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Abstract

A primary mirror mechanism that can be deployed with a large caliber in space relates to a primary mirror mechanism. At present, the large-aperture deployable optical primary mirror in space is complicated and cumbersome due to the complicated structure, which makes it difficult to realize the simultaneous deployment of various components during the deployment process, and the deployment accuracy is low, and the problem of shading is prone to occur at the same time. In the present invention, N groups of block mirror bodies are evenly arranged around the linkage device, and the unfolding locking device includes N first hinges, N second hinges, N third hinges and N fourth hinges, The tops of two adjacent groups of block-type mirror bodies are connected by a first hinge, and the bottoms of two adjacent groups of block-type mirror bodies are connected by a second hinge. Each group of block-type mirror bodies includes two Mirror, the two sub-mirrors are arranged side by side, the tops of the two sub-mirrors are connected by a third hinge, the bottoms of the two sub-mirrors are connected by a fourth hinge, and the N group of block mirrors are folded and closed by unfolding the locking device. Expand the action. The invention is used in the aerospace field.

Description

technical field [0001] The invention specifically relates to a large-diameter deployable primary mirror mechanism. Background technique [0002] With the rapid development of the new round of aerospace industry, the size of the space deployable mechanism will be larger and larger, the precision will be higher and higher, and the types will be more and more. Due to the particularity of aerospace and the complexity of aerospace application requirements, the design and analysis methods of space deployable mechanisms will become one of the key issues in the future development of the aerospace industry, restricting the rapid development of my country's space technology. Therefore, there is an urgent need to carry out research on the common basic theory and technology of space deployable mechanisms, and make technical reserves for the aerospace industry, so as to ensure the rapid development of my country's space technology in the medium and long term. [0003] With the rapid dev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/00
CPCG02B7/00
Inventor 郭宏伟刘荣强高明星邓宗全唐愉真
Owner HARBIN INST OF TECH
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