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A spherical antenna support mechanism

An antenna support and folding mechanism technology, applied in the aerospace field, can solve the problems of inability to achieve multiple folding and unfolding, complex basic unit structure, long precision adjustment period, etc., and achieves short assembly and precision adjustment period, simple structure, Lightweight effect

Inactive Publication Date: 2017-01-25
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing metal mesh antenna support mechanism has defects such as low rigidity, complex structure of the basic unit, long processing, manufacturing, assembly and precision adjustment cycle, and the inability to realize multiple folding and unfolding during the orbital working stage.

Method used

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  • A spherical antenna support mechanism
  • A spherical antenna support mechanism
  • A spherical antenna support mechanism

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Such as figure 1 , 2 As shown in and 3, a spherical antenna support mechanism includes a driving mechanism, a primary folding mechanism 1, a primary folding hinge column 7, a secondary folding mechanism 10, and a secondary folding hinge column 11.

[0030] Such as figure 1 , 2 , 4 and 5, the driving mechanism includes a sliding screw 2, a harmonic reducer 3, a motor 5 and a spacecraft star connecting plate 6; the motor 5 is fixed on the spacecraft star connecting plate 6, and is connected with the brake 4; the motor The output shaft of 5 is fixed to the input end of the harmonic reducer 3; the output end of the harmonic reducer 3 is fixed to the slide screw 2.

[0031] Such as figure 1 , 4 , 6, 7 and 8, the primary folding mechanism 1 includes a central slider 1-1, a central fixed block 1-2 and the first variable scissor assembly; the centr...

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Abstract

The invention discloses a spherical antenna supporting mechanism. An existing metal mesh surface type antenna supporting mechanism is low in rigidity, unit mechanisms are complex and multiple folding and unfolding can not be achieved. A center sliding block is in threaded connection with a sliding lead screw; ordinary scissors poles at one ends of five first altered scissors fork assemblies are hinged to a center fixing block, limiting scissors poles at the same ends are hinged to the center sliding block, and ordinary scissors poles and limiting scissors poles at the other ends are hinged with first-level folding and unfolding hinged columns; one ordinary scissors fork unit of each second-level folding and unfolding mechanism is hinged to a first-level folding and unfolding hinged column on one first altered scissors fork assembly, one second altered scissors fork unit of each second-level folding and unfolding mechanism is spherically hinged to the first-level folding and unfolding hinged column on another adjacent first altered scissors fork assembly, and the other second altered scissors fork unit of each second-level folding and unfolding mechanism is hinged to another ordinary scissors fork unit of the adjacent second-level folding and unfolding mechanisms through two second-level folding and unfolding hinged columns. The spherical antenna supporting mechanism can be folded and unfolded repeatedly, and is good in rigidity and high in unfolding precision.

Description

technical field [0001] The invention belongs to the field of aerospace, and relates to a metal mesh antenna support mechanism, in particular to a spherical antenna support mechanism. Background technique [0002] Space deployable antenna is an important part of spacecraft structure and an important physical platform to directly perform satellite functions. It has been widely used in the fields of mobile communication, radio astronomy, earth observation and military reconnaissance. Among them, metal mesh antennas have good characteristics in terms of storage rate, shape accuracy, expansion aperture and operating frequency, and have been widely used in various aerospace tasks. The antenna supporting mechanism is the back frame part of the spatially expandable antenna, which is used to support the metal reflective mesh, maintain structural accuracy and maintain structural stability. At present, the existing metal mesh antenna support mechanism has defects such as low rigidity,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/12
Inventor 胡明冯军陈文华撖亚頔张鹏
Owner ZHEJIANG SCI-TECH UNIV
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