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Cable net reflecting surface developable antenna thread differential motion cable length adjusting device and adjusting method

A cable net reflective surface and adjustment device technology, which is applied to antennas, electrical components, etc., can solve the problem of low precision of the cable net reflective surface, achieve the effects of eliminating gaps, high adjustment accuracy, and ensuring adjustment accuracy

Inactive Publication Date: 2014-07-23
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the inevitable errors in the processing and assembly of the cable net, the precision of the assembled cable net reflective surface is not high

Method used

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  • Cable net reflecting surface developable antenna thread differential motion cable length adjusting device and adjusting method
  • Cable net reflecting surface developable antenna thread differential motion cable length adjusting device and adjusting method
  • Cable net reflecting surface developable antenna thread differential motion cable length adjusting device and adjusting method

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Experimental program
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Embodiment Construction

[0037] see figure 1 , the antenna cable length adjustment device that can be expanded on the cable net reflective surface of the present invention is composed of a differential threaded cylinder 1, an adjustment screw a2, an adjustment screw b3, a compression spring 4 and a locking screw 5. The appearance of the device is as follows figure 2 shown.

[0038] Such as image 3 As shown, there is a section of internal thread at both ends of the inner wall of the differentially threaded cylinder 1. The two sections of threads have different pitches and opposite directions of rotation. The sum of the lengths of the two sections of threads determines the adjustment range of the device. There are two small screw holes on the side wall of the differential thread barrel 1, and the differential thread barrel scale 6 is marked on the outer walls of both ends. Such as Figure 4 (a) and Figure 4 As shown in (b), the adjustment screw a2 and the adjustment screw b3 are processed with ex...

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Abstract

The invention discloses a cable net reflecting surface developable antenna thread differential motion cable length adjusting device and adjusting method. The device comprises a differential screw barrel, internal threads with different thread pitches and the opposite turning directions are arranged at the two ends of the inner wall of the differential screw barrel, external threads matched with the internal threads at the two ends of the inner wall of the differential screw barrel are arranged on a pair of adjusting screw rods respectively, the adjusting screw rods are screwed into the two ends of an inner cavity of the differential screw barrel, and small holes in the direction of the axes of the adjusting screw rods are formed in the stretching ends of the adjusting screw rods respectively. A compression spring is arranged between the inner end faces of the adjusting screw rods inside an inner cavity of the differential screw barrel. Differential screw barrel scales are evenly distributed on the outer wall of the two ends of the differential screw barrel respectively, and adjusting screw rod scales are arranged at the stretching ends of the adjusting screw rods respectively. The cable length is adjusted fast and precisely in a thread differential driving mode. The device has the advantages of being simple in structure, having multiple adjusting modes, and being convenient to use.

Description

technical field [0001] The invention relates to the technical field of mechanical precision control, in particular to a cable length adjusting device and an adjusting method for a deployable antenna on a satellite-borne cable net reflecting surface. Background technique [0002] Deployable antennas with cable-net reflectors are widely used because of their light weight, easy realization of large aperture, and small folded volume. The structure of this antenna is simple, and the increase of the aperture within a certain range will not change the structure of the antenna, and the mass will not increase proportionally. It is an ideal structure for the development of large-scale deployable antennas. [0003] The design of deployable antennas with cable net reflectors is very difficult. In order to meet the electrical performance requirements, the surface accuracy of the antenna reflector needs to reach 1 / 50 of its working wavelength, which is very demanding. First of all, since...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/14
Inventor 杜敬利保宏魏传达杨东武张逸群段学超
Owner XIDIAN UNIV
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