The six-dimensional adjustment mechanism of the attitude space of the auxiliary surface

Abstract

The invention relates to a six-dimensional adjustment mechanism for a secondary surface posture space. The four-screw structure installation method of the sub-surface of the satellite communication antenna is difficult to meet the multi-dimensional space attitude and position requirements of the sub-surface. In the present invention, two bottom plates are arranged on the concave surface of the auxiliary surface, and two opposite side plates are arranged on the inner side of the two bottom plates, and the ends of the side plates are all folded back inwardly, and two opposite double ear plates are arranged on the outside of the opposite folded back through bolts , two side plates and two double ear plates form a closed rectangular frame; the four ends of the two double ear plates are fixed to the top frame through screw assemblies; the top frame is in the shape of a rectangular frame, and is located Outside the rectangular frame; the four corners of the top frame frame are provided with connecting plates connected with the ends of the double ear plates, the outer four corners of the top frame frame are provided with connecting rods connected with the auxiliary surface support rods through bolt assemblies, and the other end of the auxiliary surface support rods The part is fixed on the main surface. The invention realizes the spatial six-dimensional adjustment of the attitude of the auxiliary surface, and makes up for the shortcomings and deficiencies of the previous adjustment methods.

Description

technical field [0001] The invention belongs to the technical field of satellite communication antennas, and in particular relates to a six-dimensional adjustment mechanism for a subsurface attitude space. Background technique [0002] At present, the installation method of satellite communication antenna secondary surface mostly adopts four-screw structure. This adjustment method is more suitable for frequency bands such as C and Ku. However, for antennas with higher frequency bands such as Ka, the adjustment accuracy of the aforementioned adjustment method is not enough. It is too suitable, and the installation method of this auxiliary surface is only suitable for the format of the circular symmetrical shape, but for the non-circular symmetrical shape of the auxiliary surface, the adjustment method is difficult to meet the multi-dimensional space posture and position requirements of the auxiliary surface. [0003] At present, in the field of satellite communication, there ...

AI Technical Summary

Problems solved by technology

[0002] At present, the installation method of satellite communication antenna secondary surface mostly adopts four-screw structure. This adjustment method is more suitable for frequency bands such as C and Ku. However, for antennas with higher frequency bands such as Ka, the adjustment accuracy of the aforementioned adjustment method is not enough. It is too suitable, and the installation method of this auxiliary surface is only suitable for the format of the circular symmetrical shape, and for the non-circular symmetrical shape of the auxiliary surface, the adjustment method is difficult to meet the multi-dimensional space posture and position requirements of the auxiliary surface

[0003] At present, in the field of satellite communication, there are other installation methods for the subsurface, but there are basically defects such as small application range, few adjustment dimensions, and changes in other dimensions. Specifically:

[0004] 1. There are few adjustment dimensions. Generally, the rotation angles of the X and Y axes in space can be adjusted. Most of the displacements of the X and Y axes cannot be adjusted. The displacement direction of the Z axis can be adjusted, but the rotation angle of the Z axis is rarely adjustable. of

[0005] 2. When adjusting the spatial attitude of the auxiliary surface, they often affect each other. When adjusting a certain dimension, it will affect other adjusted dimensions. For example, the most commonly used four-screw structure, when the rotation angle of the X and Y axes is adjusted to the position Finally, when adjusting the Z-axis displacement, the screw that was tightened just now will move or shift again, so that the rotation angles of the X and Y axes will change again.

[0006] 3. Large volume and heavy weight, not suitable for small space and light use

Images