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A multi-screw linkage repeatable extension spaceborne mechanism

A technology of driving mechanism and lead screw, which is applied in the field of multi-screw linkage and repeatable extension space-borne mechanism, which can solve the problems of rope jamming, incomplete deployment and release, etc., and achieve the effects of stable expansion and contraction, weakened motion disturbance, and good versatility

Inactive Publication Date: 2016-07-27
CHINA ACADEMY OF SPACE TECHNOLOGY
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  • Abstract
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Problems solved by technology

[0003] Existing space extension mechanisms for large-scale deployable antennas, solar panels, and space station extendable trusses mainly use wire rope or single-screw multi-nut retraction release mechanisms. Such extension mechanisms exist in space environments. Phenomena such as incomplete deployment and release or rope jamming are also the main reasons for failures of space deployment mechanisms in recent years

Method used

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  • A multi-screw linkage repeatable extension spaceborne mechanism
  • A multi-screw linkage repeatable extension spaceborne mechanism
  • A multi-screw linkage repeatable extension spaceborne mechanism

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Embodiment Construction

[0026] The multi-screw linkage repeatable extendable spaceborne mechanism according to the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] The key point of the multi-screw linkage repeatable extendable space-borne mechanism of the present invention is to realize the extension and contraction of the mechanism based on the variation relationship of the transmission torque of the multi-segment telescoping screw.

[0028] Such as figure 1 As shown, it is an overall assembly diagram of the multi-screw linkage repeatable extendable on-board mechanism of the present invention. The starborne mechanism includes a mounting seat 1, a driving mechanism 2, a first screw nut 3, a first screw nut 4, a first screw retaining ring 5, a second screw screw 6, a second screw nut 7, a second Section screw retaining ring 8 , first section casing 9 , second section casing 10 , third section casing 11 , first r...

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Abstract

The invention provides a multi-lead-screw linkage repeatable extending satellite-borne mechanism. The multi-lead-screw linkage repeatable extending satellite-borne mechanism comprises an installation base, a drive mechanism, a first-segment lead screw, a first nut, a first-segment lead screw check ring, a second-segment lead screw, a second nut, a second-segment lead screw check ring, a first-segment sleeve, a second-segment sleeve, a third-segment sleeve and a rolling bearing. The second-segment lead screw is connected with the first-segment lead screw through the first nut, the second-segment sleeve is connected with the second-segment lead screw through the rolling bearing, the first-segment sleeve is connected with the second-segment lead screw through the second nut, the first-segment lead screw is driven by the drive mechanism, and extending and shrinking of the corresponding sleeves are achieved through linkage between the lead screws and the nuts. The satellite-borne mechanism is compact in structure, large in bearing capacity, stable in extending and shrinking, good in independence, high in precision, easy and convenient to operate, high in reliability and good in environmental suitability and can serve as a standard configuration device of a butt joint capturing telescopic mechanism.

Description

technical field [0001] The invention belongs to the technical field of space satellite capture, and relates to a multi-screw linkage repeatable extendable spaceborne mechanism. Background technique [0002] High-orbit satellites play an important role in military and civilian fields such as communications, navigation, early warning, and remote sensing due to their large satellite coverage and relatively slow motion on the ground. Carrying out on-orbit service for high-orbit satellites can prolong the life of the satellite and improve the ability to perform tasks, which is one of the current research hotspots at home and abroad. In the process of on-orbit service for high-orbit satellites, operations such as auxiliary orbit change, fuel supply, attitude control, satellite takeover, and fault repair can be performed on the on-orbit satellite as needed. During this type of operation, the capture mechanism needs to be transported to the vicinity of the target to be captured, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25J18/02
Inventor 孙玉成李志黄剑斌韩旭陈大可朱孟萍
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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