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Mechanical cone scanning and polarization adjusting mechanism used for feed source

A technology of conical scanning and adjusting mechanism, applied in the direction of electrical components, antennas, etc., can solve problems such as the inability to meet the requirements of use, and achieve the effect of bandwidth expansion

Active Publication Date: 2015-02-25
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, relying on electrical cone scanning to track wireless signals can no longer meet the requirements of use

Method used

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  • Mechanical cone scanning and polarization adjusting mechanism used for feed source
  • Mechanical cone scanning and polarization adjusting mechanism used for feed source
  • Mechanical cone scanning and polarization adjusting mechanism used for feed source

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Embodiment Construction

[0015] The following is an embodiment disclosed in the present invention, refer to the attached figure 1 , 2 , 3, 4, 5, a mechanical cone scanning and polarization adjustment mechanism for feed in this embodiment is composed of a main rotating device, a center wheel device, a two-stage planetary gear device, a feed source, a high-frequency joint, Components such as counterweight and polarization adjustment gear.

[0016] The main rotating device is composed of a chassis 27, a turntable 16, a large gear bearing 20, a small gear 29, a scanning motor 12, an encoder, a polarization adjustment motor 11, and a polarization adjustment gear A 15 together. Among them: the inner ring of the large gear bearing 20 is fixed to the chassis 27, the outer ring is fixed to the turntable 16, the scanning motor 12 is fixed to the chassis 27, and the small gear 29 is driven by the scanning motor 12 and meshes with the large gear bearing 20, so that The turntable 16 rotates on a fixed axis around the...

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Abstract

The invention discloses a mechanical cone scanning and polarization adjusting mechanism used for a feed source. The mechanism comprises a bottom disc, a bottom disc central axis, a column sun gear at the upper end of the central axis, a planet gear which is installed in match with a feed source installing device, a scanning motor and a polarization adjusting motor, wherein in the feed source scanning working condition, the scanning motor serves as an execution element, and the polarization adjusting motor (with a brake) serves as a brake element; and a composite mechanism with sun motion and planet motion is formed by two stages of column gear pairs and one stage of non-orthogonal cone gear pair of which the intersection angle is 15-22 degrees, the feed source is enabled to have 5Hz high speed mechanical cone scanning rotation around a main axis, and moreover the polarization of an antenna is kept spatially unchanged in the feed source rotation process. In the non-scanning working condition of the antenna feed source, the polarization adjusting motor serves as the execution element, the scanning motor (with the brake) serves as the brake element, and through three stages of gear transmission pairs, the adjustment on the antenna polarization is realized.

Description

Technical field [0001] The invention relates to a mechanical conic scanning and polarization adjustment mechanism for a feed, which is used in the technical field of dynamic platforms, especially antennas used in ship platforms, in the field of automatic tracking and receiving of broadband radio signals under rocking conditions. Background technique [0002] With the development of science and technology, it has become possible to track and receive radio signals at sea. In the past, an antenna was usually used to track radio signals in a certain frequency band through electrical cone scanning, but the restriction was that the frequency band could not be too wide, for example, the ratio of high frequency to low frequency did not exceed four times the frequency. If the frequency band is too wide, it can only be solved by using more than two antennas to track signals in different frequency bands. The tasks of the current ship platform are more diversified, and there is no more spac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q3/10H01Q15/24
Inventor 张亚林陆海坤
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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