A Pitching Mechanism for ATC Radar Antenna

Abstract

The invention relates to the field of air traffic control radar and discloses a pitching mechanism for an air traffic control radar antenna. The pitching mechanism comprises a fixing frame, wherein afixing portion on the fixing frame is fixedly connected to the radar antenna; an arc curved portion on the fixing frame is sleeved with a pitching mechanism; convex teeth are disposed on the inner side of the curved portion; stepped surfaces are symmetrically disposed on the inner side wall of the curved portion located on both sides of the convex teeth; a stopping groove is disposed on the outerside wall of the curved portion; the pitching mechanism includes an arc upper casing and an arc lower casing; the upper casing and the lower casing are fixedly connected by lock nuts on edges. First and second rollers perform rolling friction on the curved portion, so that the upper and lower casings are not in contact with the curved portion. Further, the first and second rollers are made of nonmetallic materials such as rubber and the like so as to reduce the friction during the operation of the pitching mechanism and improve the transmission efficiency of the pitching mechanism.

Description

technical field [0001] The invention relates to the field of air traffic control radar, in particular to a pitch mechanism for air traffic control radar antennas. Background technique [0002] Radar is often used in air traffic control for monitoring, electronic positioning and identification of flight equipment. The pitching mechanism of the radar can better maintain the connection between the radar antenna and the flying unit. Most of the existing pitching mechanisms combine a part of the antenna The other part is connected to it through a pull rod or telescopic mechanism, and the pitch of the antenna is realized through the action of the pull rod or telescopic mechanism. Since this structure requires multiple components to be linked, any failure of any one of them will cause the pitch mechanism to fail. The operation, especially the rotating joints, are mostly metal hinges, which are easy to rust if exposed for a long time. [0003] The technical solution provided by the...

AI Technical Summary

Problems solved by technology

[0002] Radar is often used in air traffic control for monitoring, electronic positioning and identification of flight equipment. The pitching mechanism of the radar can better maintain the connection between the radar antenna and the flying unit. Most of the existing pitching mechanisms combine a part of the antenna The other part is connected to it through a pull rod or telescopic mechanism, and the pitch of the antenna is realized through the action of the pull rod or telescopic mechanism. Since this structure requires multiple components to be linked, any failure of any one of them will cause the pitch mechanism to fail. Operation, especially the rotating joints are mostly made of metal hinges, which are easy to rust if exposed for a long time

[0003] The technical solution provided by the patent document CN105489998B only improves the adjustment assembly, the action of the entire pitch mechanism still needs the linkage of the adjustment assembly and the hinge parts, and the rotation connection is still a metal hinge, and there is also a failure in any of the above-mentioned ones. That will lead to the problem that the pitching mechanism cannot operate

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