Support unit of two-support and one-lifting target support rotary table

Abstract

The invention relates to a support unit of a two-support and one-lifting target support rotary table. The support unit mainly consists of a vertical driving guide assembly, a horizontal driving guide assembly, and a support rod and wave absorbing material sleeve cylinder assembly. The support unit is characterized in that the support function of the two-support and one-lifting target support rotary table is mainly realized, and the high-precision movement of the support unit along two directions is realized, namely the vertical movement along the direction of a revolving shaft of the target support rotary table, and the horizontal movement along the radial direction of the target support rotary table; the high-precision movement and positioning along the vertical direction can be realized by the matching of two servo driving motors, two groups of high-precision ball screws and four groups of high-precision guide columns, and the high-precision movement and positioning along the horizontal direction can be realized by the matching of one servo driving motor, one group of high-precision ball screw and two linear guide rails; a support rod is connected with a to-be-tested target through a ball hinge movement pair. The support unit has the advantages that the movement is flexible, the stability is high, the contact area is small, and the like; the support unit is matched with a traction unit, so that the building height and pitch attitude of the to-be-tested target can be adjusted.

Description

technical field [0001] The invention relates to a support unit for a two-piece one-lift target support turntable, which mainly realizes the function of two-piece one-lift target support turntable support when the RCS measurement of the target is carried out in an indoor test field such as a compact field, and belongs to mechanical engineering and microwave engineering field. Background technique [0002] When measuring the radar cross section (RCS) of a target using a test field such as a compact field or an outdoor far field, it is necessary to use a target support device to erect the target to be measured to the center of the quiet zone. Currently commonly used target support devices mainly include foam brackets (cooperating with one-dimensional precision turntables) and low-scattering metal brackets. The foam support is generally circular or conical foam, and there is no fixed connection between the foam and the one-dimensional precision turntable and the target to be me...

AI Technical Summary

Problems solved by technology

The foam support is generally circular or conical foam, and there is no fixed connection between the foam and the one-dimensional precision turntable and the target to be measured, so the stability and safety of the target support are poor; when using a low-scattering metal support to support the target, it is necessary to The installation position of the target is processed with a large installation hole, which will affect the original RCS of the target to be measured, resulting in inaccurate measurement results

Although both the foam bracket and the metal bracket can achieve high-precision rotation of the target to be measured, neither can realize the adjustment of the pitch attitude of the target to be measured, and cannot complete the comprehensive measurement of the RCS of the target to be measured

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