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Novel micro-expansion gas cylinder mounting structure for satellite

An installation structure and micro-expansion technology, which is applied to artificial satellites, transportation and packaging, space vehicle propulsion system devices, etc., can solve problems such as cylinder damage and stress concentration, and achieve stress concentration avoidance, easy processing, and simple structure Effect

Active Publication Date: 2022-05-13
AEROSPACE DONGFANGHONG SATELLITE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the new type of micro-expansion gas cylinder has a spherical body and is made of carbon fiber winding. It needs to withstand high pressure inside the cylinder, and the mechanical interface is set at both ends of the gas cylinder. During the expansion process, the relative positions of the mechanical interfaces at both ends will change. Changes, if all installation degrees of freedom are restricted according to the traditional design, it will lead to stress concentration and cause damage to the cylinder

Method used

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  • Novel micro-expansion gas cylinder mounting structure for satellite
  • Novel micro-expansion gas cylinder mounting structure for satellite
  • Novel micro-expansion gas cylinder mounting structure for satellite

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Embodiment

[0046] In this embodiment, the specific parameters of a novel micro-expansion gas cylinder installation structure for a satellite are:

[0047] a) The weight of the novel micro-expansion gas cylinder supported by the present invention (inflated fully loaded state) is 27.5kg, and the maximum diameter of the gas cylinder sphere is The change in the axial dimension before and after inflation is 3mm; the diameter of the sliding support shaft is The size of the rectangular block for fixing the support shaft is 25(-0.05~0)mm×25(-0.05~0)mm×15(-0.05~0)mm in the axial direction, and the inner distance between the fixed support component and the sliding component is 492mm ;

[0048] b) The total weight of the fixed support component, sliding component structure and connection standard parts of the present invention is not more than 1kg;

[0049] c) The size of the gap a of the present invention is 0.2mm, and the size of the gap b is 0.1mm;

[0050] d) The combination formed by the g...

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Abstract

The invention discloses a novel micro-expansion gas cylinder mounting structure for a satellite. According to the novel micro-expansion gas cylinder mounting structure, a fixed supporting shaft and a sliding supporting shaft of a micro-expansion gas cylinder are supported through a fixed supporting assembly and a sliding assembly. Wherein the fixed supporting assembly is used by combining a fixed supporting pressing block and a fixed supporting base, and the fixed supporting assembly and the fixed supporting pressing block are installed together through bolts and fixed to the square opening end of the novel micro-expansion gas cylinder in a paired mode; the sliding assembly is formed by combining a sliding pressing block and a sliding base for use, the sliding pressing block and the sliding base are installed together through a bolt and matched with the cylindrical opening end of the novel micro-expansion gas cylinder for use, and the cylindrical opening of the novel micro-expansion gas cylinder is allowed to be subjected to micro-expansion deformation in the axial direction. And finally, the fixed support assembly and the sliding assembly are fixedly connected with the satellite structure through bolts. The novel micro-expansion gas cylinder has the advantages that the novel micro-expansion gas cylinder is designed by comprehensively considering the micro-expansion requirement, the gas cylinder mounting interface and other factors, the structure is simple, the operation is convenient, the mounting and fastening of the gas cylinder can be realized, and the micro-expansion requirement of the gas cylinder can be met.

Description

technical field [0001] The invention relates to a satellite gas cylinder installation structure, especially suitable for mounting and fixing satellite micro-expansion gas cylinders, and belongs to the technical field of structures. Background technique [0002] The gas cylinder installed on the satellite is an important part of storing propellant in the satellite propulsion subsystem. Traditional gas cylinders are mostly metal structures, and their structural strength can withstand the stress changes caused by their expansion during the pressurization process. The installation interface of most gas cylinders is designed at the waist of the gas cylinder, so there is no need to consider the expansion of the gas cylinder during installation, and the installation and fixing are relatively simple. However, the new type of micro-expansion gas cylinder has a spherical body and is made of carbon fiber winding. It needs to withstand high pressure inside the cylinder, and the mechani...

Claims

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Application Information

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IPC IPC(8): B64G1/40B64G1/10
CPCB64G1/402B64G1/10
Inventor 刘质加单悌磊刘江王瑞显韩冬齐卫红葛逸民石小兵
Owner AEROSPACE DONGFANGHONG SATELLITE
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