Passive butt joint mechanism used for on-orbit assembling of large space antennas

A docking mechanism, space technology, applied in the directions of folding antennas, connecting members, and quick disassembly of antenna units, etc., can solve the problem of limited antenna expansion, and achieve the effects of simple structure, high reliability, and error elimination.

Active Publication Date: 2019-02-19
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the expansion of the antenna is still limited, so there is an urgent need for an operating system for automatically assembling antenna modules on orbit. This operating system allows antenna modules to be delivered in batches and automatically assembled on orbit in space.

Method used

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  • Passive butt joint mechanism used for on-orbit assembling of large space antennas
  • Passive butt joint mechanism used for on-orbit assembling of large space antennas
  • Passive butt joint mechanism used for on-orbit assembling of large space antennas

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Embodiment Construction

[0037] The present invention will be further described in detail below in conjunction with accompanying drawings and examples.

[0038] The present invention is a passive docking mechanism that can be used for on-orbit assembly of large-scale space antennas. It consists of a male head 1 and a female head 2, such as figure 1 shown.

[0039] The male head 1 is installed on the mobile antenna module and consists of a male head base 101, a steel ball 102, a conical shell 103, a switch shaft 104 and a male head spring 105, as figure 2 , image 3 shown. Wherein, a through hole is opened on the bottom surface of the male head base 101 for bolts to pass through, so as to realize the fixing between the male head 1 and the mobile antenna module. The outer edge of the male connector 1 is designed with trapezoidal protrusions at equal intervals on the circumference, and trapezoidal recesses are formed between adjacent trapezoidal protrusions, which are used for positioning between the...

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Abstract

The invention discloses a passive butt joint mechanism used for on-orbit assembling of large space antennas. The passive butt joint mechanism is composed of a male head and a female head; the male head is connected with a movable antenna module; the female head is connected with a fixed antenna module; and the male head can slide into the female head and pushes a steel ball through a switching shaft, the steel ball abuts against the inner wall of the female head to achieve locking, and therefore the movable antenna module and the fixed antenna module are fixedly connected. When the male head bears the reversed unlocking force or vibration, self locking of the steel ball can be ensured, and thus locking reliability is ensured. When unlocking is needed, a male head bolt is manually dismounted, and the male head and the female head can be conveniently separated. Passive butt joint and locking between the two antenna modules can be achieved, in the butt joint process, angle and position errors can be eliminated through the convex-concave matching design of the male head and the female head, and self locking can be ensured in a locking state.

Description

technical field [0001] The invention belongs to the field of mechanical design and relates to a passive docking mechanism that can be used for on-orbit assembly of large space antennas. Background technique [0002] With the rapid development of aerospace technology, mobile communication, navigation and deep space exploration have put forward higher requirements for large space antennas. Due to the limited power of satellite platforms, large volume has become the main trend of space antenna design. However, the volume of the antenna-carrying aircraft is also limited, so researchers have proposed many solutions including retractable antennas. However, the expansion of the antenna is still limited, so there is an urgent need for an operating system for automatic on-orbit assembly of antenna modules. This operating system allows antenna modules to be delivered in batches and completed on-orbit automatic assembly in space. Contents of the invention [0003] Aiming at the tas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B2/16H01Q1/08
CPCF16B2/16H01Q1/088
Inventor 徐坤孟昕丁希仑郭品
Owner BEIHANG UNIV
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