Hoisting device and method for FAST (five-hundred-meter aperture spherical radio telescope) reflection surface unit

Abstract

The invention discloses a device for hoisting a FAST (five-hundred-meter aperture spherical radio telescope) reflection surface unit. The device comprises a rail locomotive and an operation locomotive which operate on a ring beam, wherein a center ring beam is arranged at the center position of a radio telescope; a bearing rope is connected between the rail locomotive and the center ring beam; a bearing tackle capable of sliding along the bearing rope is arranged on the bearing rope; the operation locomotive transfers the reflection surface unit to the rail locomotive and suspends the reflection surface unit on the bearing tackle; a traction rope connected with the bearing tackle is arranged on the rail locomotive; under the traction of the traction rope, the reflection surface unit is hoisted and transported to a position above a corresponding mounting position of a main cable net; a winding mechanism for unloading the reflection surface unit to the corresponding mounting position of the main cable net is arranged on the bearing tackle; the connection end of the bearing rope to the center ring beam can slide along the center ring beam; the work is repeated, so that the hoisting transportation on all the mounting positions on the main cable net is realized.

Description

technical field [0001] The invention relates to a hoisting device for a FAST reflector unit, through which the reflector unit of a radio telescope can be hoisted to the installation position of a main cable net. [0002] Background technique [0003] The National Astronomical Observatory of the Chinese Academy of Sciences proposed to build a 500-meter-caliber spherical radio telescope, which is the world's largest single-caliber radio telescope. FAST (Five-hundred-meter Aperture Spherical radio Telescope, referred to as FAST) has broken through the 100-meter engineering limit of ground-based telescopes and created a new model for building giant radio telescopes. The overall technical indicators of FAST: the aperture is 500m, the radius of curvature of the reflective surface is 300m; the aperture of the lighting area is 300m, and the focal ratio f / D =0.467. [0004] The FAST active reflector is composed of ring beams, reflector units, main cable nets, actuator devices, grou...

AI Technical Summary

Problems solved by technology

Due to the large volume, heavy weight, long lifting span and large drop in lifting height of the reflector unit used by FAST, none of the existing lifting devices in this field can be used, and it is necessary to redesign an applicable lifting device

Images