Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Microstress assembling method for large-caliber reflector assembly

A technology for large-diameter mirrors and assembly methods, applied in installation, optical components, optics, etc., can solve problems such as large assembly stress, affecting the surface quality and structural stability of the mirror, and reduce the difficulty of assembly and adjustment Uniform force, easy to achieve effect

Active Publication Date: 2015-03-25
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the mirror assembly is assembled in this case, there will be a large assembly stress, which will affect the surface quality and structural stability of the mirror.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Microstress assembling method for large-caliber reflector assembly
  • Microstress assembling method for large-caliber reflector assembly
  • Microstress assembling method for large-caliber reflector assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Specific implementation examples

[0026] Such as image 3 As shown, in the assembly process of small and medium-sized optical components in the past, due to the small gravity deformation, it has little effect on the assembly stress of the components, and there is no need to consider the factor of gravity unloading. However, in large-aperture optical components, due to the large span of the three fixed points, the amount of gravitational deformation reaches the micron level. In this case, fixing the connecting screws will lock the gravitational deformation in the component, forming assembly stress. And then affect the surface quality of the mirror.

[0027] After adopting the method, the gravitational deformation of the optical component can be reduced to the minimum. Effectively guarantee the consistency of the sky and the ground, and ensure the optical assembly quality of the remote sensor.

[0028] Such as figure 1 As shown, the principle diagram of the method o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a microstress assembling method for a large-caliber reflector assembly. Related devices comprise sensors, supporting rods, weights, a base, pulling ropes and a tray. Firstly, the mechanical sensors are fixedly installed on the base; secondly, the reflector assembly is placed on the base through three ball head gaskets; thirdly, the supporting rods are installed at the designated positions of the base, one end of each pulling rope is bound to a disassembling point, the pulling ropes wind around two fixed pulleys on the supporting rods, and the weights are bound at the other ends of the pulling ropes. At the moment, whether gravity disassembling is in place or not is judged through reading of the mechanical sensors, and the weight of the weights is adjusted in a fine mode until the reading of the sensors is zero. Finally, after disassembling is completed, a torque wrench is used for screwing screws of the reflector assembly to the preset torque, and disassembling and assembling of the reflector assembly are completed. Thus, microstress assembling of the reflector assembly is achieved, and the reflector surface shape quality and the structural stability of an optical remote sensor are ensured.

Description

technical field [0001] The invention belongs to the technical field of mirror assembly for aerospace optical remote sensors, and relates to a micro-stress assembly method for a large-diameter mirror assembly, in particular to the assembly of a frame-mounted mirror assembly. Background technique [0002] The optical mirror is the core component of the aerospace remote sensing camera, and its surface shape accuracy and position accuracy directly affect the imaging quality of the optical system. The micro-stress assembly technology of mirror components is a key link in the development of space cameras. With the increasing demand for large-aperture mirrors, it is more difficult to assemble frame-mounted mirror components. [0003] Such as Figure 4 As shown, in the support design of large-aperture mirrors, three-point support is often used as a limit fixation and does not participate in unloading. At this time, other methods are needed to realize the unloading of the mirror fram...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G02B7/183
CPCG02B7/183
Inventor 赵野周于鸣王向东李晨曦杨居奎黄巧林姜伟蔺宇辉李玲宋志清杨佳文张博文
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com