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FAST reflector unit self-adaptive connection mechanism and layout method

A connection mechanism and unit connection technology, which is applied in the direction of electrical components, mechanical equipment, sliding contact bearings, etc., to achieve the effects of reducing in-plane bending moment, reducing lubrication performance requirements, and improving product life

Pending Publication Date: 2020-07-31
NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide an adaptive connection mechanism and layout method for FAST reflective surface units to solve the technical problems in the prior art

Method used

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  • FAST reflector unit self-adaptive connection mechanism and layout method
  • FAST reflector unit self-adaptive connection mechanism and layout method
  • FAST reflector unit self-adaptive connection mechanism and layout method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] combine Figure 6 to Figure 10 As shown, the present embodiment provides a FAST reflective surface unit adaptive connection mechanism, which includes:

[0051] The 0# connection mechanism located at the upper apex of the reflecting surface unit includes: joint bearing, original 1# node shaft 29, original 1# shaft seat and shaft sleeve 26, a liner is added to the spherical pair of the joint bearing, and the original 1# #node shaft 29 is plugged and connected to the joint bearing, and the end of the original 1# node shaft 29 is provided with a shaft sleeve 26 for preventing its own sliding; the joint bearing is movably arranged on the original 1# shaft seat , the original 1# shaft seat is fixed on the connecting plate of the reflector unit;

[0052] The 1# connection mechanism located at the apex on the right side of the reflective surface unit includes: joint bearings, 1# node shaft 32, and 1# shaft seat; pads are added to the spherical pair and the sliding pair of the ...

Embodiment 2

[0061] The second embodiment provides a layout method for the adaptive connection mechanism of the FAST reflective surface unit according to the first embodiment, which includes: passing through an adaptive connection mechanism and its corresponding cable node at each corner vertex of the reflective surface unit Disks are connected by constraints, and different vertices are connected with different adaptive connection mechanisms, among which:

[0062] Select a reflector element with one corner point above and two corner points below;

[0063] Among them, the 0# connection mechanism is arranged on the upper vertex of the reflective surface unit;

[0064] Among them, the 1# connecting mechanism is arranged at the right vertex of the reflecting surface unit;

[0065] Among them, the 2# connecting mechanism is arranged at the left vertex of the reflecting surface unit.

[0066] Wherein, 3 translational degrees of freedom are constrained by the 0# connection mechanism; 2 translat...

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Abstract

The invention relates to the technical field of FAST radio astronomical telescopes, in particular to a FAST reflecting surface unit self-adaptive connecting mechanism and a layout method. According tothe novel 0# connecting mechanism, a node shaft of an original 1# connecting mechanism is reserved, a shaft sleeve is additionally arranged at the upper end of the node shaft to restrain one translational degree of freedom, a knuckle bearing is a new product, and a polytetrafluoroethylene gasket is additionally arranged on a spherical pair. The novel 1# connecting mechanism adopts a new product,and polytetrafluoroethylene gaskets are additionally arranged on a spherical pair and a sliding pair of a knuckle bearing of the novel 1# connecting mechanism. The 2# connecting mechanism is not changed, and the original product is still kept.

Description

technical field [0001] The invention relates to the technical field of FAST radio astronomy telescopes, in particular to an adaptive connection mechanism and layout method of FAST reflector units. Background technique [0002] The Five-hundred-meter Aperture Spherical radioTelescope (FAST) is a major scientific device during the 11th Five-Year Plan period in my country and the largest single-aperture radio telescope in the world. It has three independent innovations: using Guizhou's natural karst The pit is used as the platform site, the reflective surface for active deformation, and the flexible light feed source supported by six cables dragged in parallel. [0003] The FAST reflective surface uses a flexible cable net as the main supporting structure and a key component for active deformation. The cable network structure includes 6670 main cables, 2225 down cables and 2225 cable network nodes. Each pull cable is connected to a hydraulic actuator and anchored to the ground...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/16F16C23/04
CPCH01Q15/165F16C23/043
Inventor 姜鹏李辉杨清阁
Owner NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI