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A wire rope traction type large-scale antenna pitch angle adjustment device and its adjustment method

An adjustment device and traction-type technology, applied in the direction of antenna support/installation device, antenna, electrical components, etc., can solve the problems of high processing precision of rack and pinion, high processing and installation requirements, affecting the performance of antenna array, etc., and achieve cost Low, reduced complexity and weight, low coefficient of friction effect

Active Publication Date: 2021-02-09
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For large antennas, the rack and pinion drive mode is adopted. The advantage is that the instantaneous transmission ratio is constant and the instantaneous speed is relatively uniform, and the precise control of pitch tracking is relatively easy. The installation requirements are high, and the processing cost is expensive; in addition, the traditional rack and pinion transmission method requires the antenna to have a pitch axis to support the antenna. The structure is relatively complex, the force is concentrated, and the deformation is large, which affects the performance of the antenna array.

Method used

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  • A wire rope traction type large-scale antenna pitch angle adjustment device and its adjustment method
  • A wire rope traction type large-scale antenna pitch angle adjustment device and its adjustment method
  • A wire rope traction type large-scale antenna pitch angle adjustment device and its adjustment method

Examples

Experimental program
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Effect test

Embodiment 1

[0043] like figure 1 , 3 , 4, 5 and 6, a wire rope traction type large-scale antenna pitch angle adjustment device, including two angle adjustment mechanisms. The two angle adjustment mechanisms are respectively used to support the two side edges of the bottom of the antenna. The angle adjustment mechanism includes an antenna base, a lower guide rail 1, an upper guide rail 2, a supporting ball group 7 and a rope driving mechanism. The lower guide rail 1 is carried by the antenna base for supporting the upper guide rail 2 . The lower guide rail 1 is in the shape of a circular arc, and the inner notch faces right above; the inner concave side of the lower guide rail 1 is provided with an arc-shaped ball support groove. The ball support channel is V-shaped. A plurality of support ball groups 7 are arranged on the ball support grooves in sequence and spaced apart. A support ball group 7 consists of a plurality of support balls mounted on the same arc-shaped cage. Each suppor...

Embodiment 2

[0060] A wire rope pulling type large-scale antenna pitch angle adjustment device, the difference from Embodiment 1 is:

[0061] The angle adjustment mechanism also includes an emergency braking assembly. The emergency braking assembly includes a braking track, a braking block and an electromagnetic drive assembly; the braking track is in the shape of a circular arc and is fixed on the concave side of the lower guide rail. Two brake blocks are movably installed on the upper guide rail and are respectively located on both sides of the brake track; the two brake blocks are driven in the opposite direction synchronously by the electromagnetic drive assembly. The electromagnetic drive assembly can drive the two brake blocks to clamp the brake track; so that the upper guide rail can be fixed on the lower guide rail; to avoid the two double drum hoists 5 continuously tightening the rope in the event of a failure, so that the upper guide rail and the lower guide rail are between the ...

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Abstract

The invention discloses a steel wire rope traction type large antenna pitch angle adjusting device and an adjusting method thereof. A large-scale antenna is driven by a gear rack, but the gear rack ishigh in precision and high in processing and mounting requirements. The steel wire rope traction type antenna pitch angle adjusting device comprises two single-side adjusting devices. The two single-side adjusting devices are used for supporting the edges of the two sides of the bottom of the antenna respectively. The single-side adjusting device comprises an antenna base, a lower guide rail, anupper guide rail, a rope-wound base circle, a supporting ball set and a rope driving mechanism. The rope driving mechanism comprises two duplex roller winches, two rope sets, two tension mechanisms and four fixed pulleys. A steel wire rope traction method is adopted to replace a traditional antenna gear rack transmission mode, the manufacturing cost is low, and maintenance is simple. Compared witha traditional wheel rail type guide rail, the ball type guide rail is smaller in friction coefficient, damping matching is achieved in the transmission process, driving tension is controllable, movement is uniform, and the upper guide rail and the lower guide rail form a closed structure.

Description

technical field [0001] The invention belongs to the technical field of antenna pitch angle adjustment, and in particular relates to a wire rope traction type large antenna pitch angle adjustment device and an adjustment method thereof. Background technique [0002] The cross-sectional direction of the parabolic antenna is a parabolic shape, and the longitudinal cross-sectional direction is a cylindrical shape, and the entire reflecting surface is a parabolic cylindrical reflecting surface. Although the parabolic cylindrical antenna is less used than the dish antenna, the cylindrical reflector antenna is used more and more for its unique advantages such as high gain, strong directivity, and multiple feeds. important equipment. Japan, India, Russia and other countries have successively built large-scale rotatable parabolic cylindrical antennas. The pitching rotation of the antenna is driven by rack and pinion. The long arc rack is installed at the lower end of the center of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q3/06H01Q1/12
CPCH01Q1/12H01Q3/06
Inventor 陈志平孙哲杰张季平张巨勇李春光贾鹏吴亚坤
Owner HANGZHOU DIANZI UNIV
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