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Expansion positioning mechanism for satellite antenna

A technology of positioning mechanism and spaceborne antenna, applied in the field of machinery, can solve the problems such as the need to detect the position of the positioning mechanism, damage the deployment positioning mechanism, and the distance between the hanging beams, etc., to reduce frictional resistance, improve safety, and avoid external collisions.

Active Publication Date: 2012-08-22
中国航天科技集团公司第五研究院第五〇四研究所
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] Since the original deployment and positioning mechanism is installed outside the antenna support structure, the tooling is easy to touch the deployment and positioning mechanism during the ground test and the antenna star installation process, causing the position of the positioning mechanism to be detected due to external force collisions, or the deployment and positioning mechanism is damaged. Based on this, Develop a new set of deployment positioning mechanism to improve product safety
The original deployment and positioning mechanism needs to complete the task together with the arc-shaped guide plate of the deployment arm at the rear of the antenna reflector. It can only be installed outside the antenna, protruding from the outside of the antenna. The position is close to the lifting beam of the whole star, and it is easy to operate. came across the agency

Method used

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  • Expansion positioning mechanism for satellite antenna
  • Expansion positioning mechanism for satellite antenna
  • Expansion positioning mechanism for satellite antenna

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Embodiment Construction

[0025] The present invention is as figure 1 As shown, it includes deployment positioning mechanism frame 1, positioning stop pin guide rod 2, stop pin thrust spring 3, positioning stop pin 4, stop pin block cover 5, stop pin shaft 6, stop pin roller 7, sliding pallet 8. Sliding pallet guide rod 9 , micro switch 10 , sliding pallet thrust spring 11 and guide cover 12 .

[0026] The deployment positioning mechanism frame 1 is the main part of the deployment positioning mechanism, which provides support for other components. The entire deployment positioning mechanism is installed on the satellite-borne antenna through the mounting holes 15 on it. Position adjustment.

[0027] The unfolding positioning mechanism rack 1 is provided with the unfolding positioning mechanism rack slot a 13 and the unfolding positioning mechanism rack slot b14, the positioning stop pin guide rod 2, the stop pin thrust spring 3, the positioning stop pin 4, the stop pin shaft 6 and the stop pin The ro...

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PUM

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Abstract

A satellite antenna expansion location mechanism comprises an expansion location mechanism frame, a location stop pin guide bar, a stop pin thrust spring, a location stop pin, a stop pin block cover board, a stop pin shaft, a stop pin roller, a sliding support plate, a guide bard, a sensitive switch, a sliding support plate thrust spring and a guide cover plate. The invention employs the sliding support plate instead of original sliding guide arc plate mounted inside the antenna support structure, and avoids external collisions in the antenna expansion process, and improves the safety. The invention can reduce a friction resistance during the antenna expansion process to make the antenna expansion more smoothly without contact friction force at the beginning of the antenna expansion. The antenna expansion location mechanism can be used for various satellite expansion antenna, specific and widely application fields.

Description

technical field [0001] The invention relates to a positioning and locking device for a space-borne large-scale deployable antenna after the antenna reflector is deployed in place when the large-scale deployable antenna is deployed in orbit, and belongs to the technical field of machinery. Background technique [0002] Generally, the large-scale satellite-borne antennas are expandable. They are in a folded and locked state before ground transportation and satellite launch into orbit. After entering the orbit, the antenna reflector is driven by the deployment mechanism. Positioning and locking in the rail state. With the continuous development of satellite payloads, the caliber of the on-board antenna continues to increase. Due to the limitation of the carrier fairing, the large-caliber antenna is in a retracted state during the launch phase. After entering the orbit, the antenna reflector unfolds. The deployment angle and precision of the antenna reflector are guaranteed by ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/08H01Q1/22H01Q1/28
Inventor 牛宝华宋剑鸣梁云郑士昆
Owner 中国航天科技集团公司第五研究院第五〇四研究所
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