Wheel track type three-axis stable following radar antenna pedestal

Abstract

The invention relates to a wheel track type three-axis stable following radar antenna pedestal, and relates to the field of radar equipment. The azimuth dimension is supported by a turntable bearing to drive the azimuth turntable, the pitching dimension and the rolling dimension to rotate; in the pitching dimension, radial and axial support is realized by a cam bearing consisting of 16 deep groove ball bearings, and the pitching frame and the transverse rolling dimension are driven to move; the transverse rolling dimension is supported by a combined cam bearing composed of eight groups of deep groove ball bearings and drives the transverse rolling frame to move. The supporting mode adopted in the pitching dimension saves the position space of traditional pitching two-side supports, and reduces the radial space and the rotation space occupied by the antenna pedestal. A supporting form adopted in the rolling dimension and an arc-shaped track adopted in the pitching dimension are beneficial to installation of a thicker antenna load; and the adjustment and clearance elimination processing of the last-stage transmission backlash satisfy the high consistency of the tracking precision of the antenna pedestal.

Description

Technical field [0001] The present invention relates to the field of radar equipment, in particular to large, thick antenna loads and radar systems with strict requirements for radial dimensions. Background technique [0002] The antenna holder is a predetermined regular movement by the control system, or the target movement, accurate points; and accurately measure the direction of the target through the axial detection device. There are a variety of structural forms in the antenna seat, and there is a positioned pitch type, XY type, a polar axis type, etc .; the number of axes, a two-axis, three axis, and the like. The traditional antenna holder is supported by a central axis, in particular a support position of the pitch and the roll, which will occupy a partial antenna load mounting space or occupying the antenna load rotation. [0003] Traditional wheel-rail is generally used in large, extremely large antennas, especially ground station satellite antenna, low rotational speed...

AI Technical Summary

Problems solved by technology

[0003] The traditional wheel-rail type is generally used for large and extra-large antennas, especially ground station satellite antennas, which have low rotation speed, large friction torque, low efficiency, and low precision. They are mostly used for static low-speed follow-up of ground stations and do not have stable follow-up Capability, and basically all are one-axis or two-axis antenna mounts

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