Antenna pedestal pivot combination device for ultra-large antenna

Abstract

The invention discloses an antenna pedestal pivot combination device for an ultra-large antenna. The antenna pedestal pivot combination device comprises an antenna pedestal pivot which is used for bearing a component, wherein a rotary drum sleeves the top part of the antenna pedestal pivot; an annular first lug boss is arranged on the outer wall of the antenna pedestal pivot; an annular second lug boss is arranged on the inner wall of the rotary drum; an inner bearing cover is horizontally arranged at the top part of the antenna pedestal pivot; a first convex edge which extends downwards is arranged on the edge of the inner bearing cover; an outer bearing cover is horizontally arranged in an inner cavity of the rotary drum; a second convex edge which extends downwards is arranged on the edge of the outer bearing cover; a bearing is assembled on the antenna pedestal pivot; an inner ring of the bearing is exactly clamped between the first lug boss and the first convex edge; an outer ring of the bearing is exactly clamped between the second lug boss and the second convex edge; and the pivot, the bearing, the outer bearing cover and the inner bearing cover are coaxial. On the basis of ensuring high concentricity, reflection of accurate azimuth and position at the accuracy smaller than 2 seconds of arc can be achieved; and the deep space exploration accuracy is ensured.

Description

technical field [0001] The invention relates to the field of deep-space detection antennas, in particular to an antenna seat pivot combination device for super-large and high-precision antennas. Background technique [0002] With the development of deep space detection technology, more and more deep space detection antennas are used. The detection antenna needs different swing angles for different situations. The existing angle adjustment mechanism of the detection antenna has a multi-link mechanism. The precision is low, and the existing large-scale antenna must use the track as a walking support, and the track of the antenna will inevitably have sundries, and the sundries on the track will be eccentric during the movement of the antenna and squeeze the pivot of the central antenna base. The general antenna base pivot is thus worn, which further affects the pointing accuracy of the antenna. In the past, under the vicious cycle of wear and pointing accuracy decline, the perf...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to ensure the ultra-high-precision antenna base pivot combination device, and provide an ultra-high-precision antenna base pivot combination design device to ensure the use of deep space detection antennas

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