Fixing method of pressure vessel for spacecraft
A technology for pressure vessels and spacecraft, applied in the direction of aerospace vehicle propulsion system devices, etc., can solve problems such as damage to the structure of gas cylinders, achieve the effects of strengthening structural strength, convenient disassembly and assembly, and easy processing
Active Publication Date: 2020-09-04
SHANGHAI INST OF SPACE PROPULSION
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Problems solved by technology
Structural damage to gas cylinders may result during spacecraft launch
Method used
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[0033] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0034] A pressure vessel fixing device for a spacecraft according to the present invention includes a gas cylinder 2, an upper bracket assembly, a lower bracket assembly, a strap assembly, and a thermal control assembly 1;
[0035] The upper bracket assembly is connected with the lower bracket assembly, and the gas cylinder 2 is fixed along the radial direction of the gas cylinder 2;
[0036] The hoop assembly is respectively connected with the upper bracket assembly and the lower bracket assembly, and ...
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The invention provides a pressure container fixing device used for a spacecraft. The pressure container fixing device comprises an air bottle, an upper support assembly, a lower support assembly, a strap assembly and a thermal control assembly. The upper support assembly and the lower support assembly are connected and fix the air bottle in the radial direction of the air bottle. The strap assembly is connected with the upper support assembly and the lower support assembly and fixes the air bottle in the axial direction of the air bottle. A cage type structure is jointly composed of the strapassembly, the upper support assembly and the lower support assembly, a cage type cavity is formed in the cage type structure, and the air bottle is fixedly arranged in the cage type cavity. The cage type cavity is coated with the thermal control assembly, the heating temperature of the air bottle is controlled, and it can be ensured that the pressure in the air bottle is normal. Cage type structural design is adopted, the air bottle is fixed in all directions through an upper support, a lower support and straps, guide pin holes are integrated in the upper support and the lower support, the whole device is detached and installed conveniently and quickly, and the centering performance is good; and the upper support assembly and the lower support assembly adopt split type splicing design andcan be conveniently machined through a composite material, the machining and installing accuracy is guaranteed, and the structural strength is enhanced through supporting boards.
Description
technical field [0001] The invention relates to the field of pressure vessel equipment, in particular to a pressure vessel fixing device for a spacecraft, in particular to a gas cylinder fixing device applied to sun-synchronous orbit satellites and other similar aerospace vehicles for storing pressurized gas. Background technique [0002] At present, the gas cylinders used in the space propulsion subsystem are mainly fixed in the form of bands and the bottom threads of the gas cylinders, and there is a phenomenon of concentrated force on the bottom threads. Structural damage to cylinders may result during spacecraft launch. Therefore, it is particularly important and urgent to develop a fixing method for a spacecraft pressure vessel. Contents of the invention [0003] Aiming at the defects in the prior art, the object of the present invention is to provide a pressure vessel fixing device for spacecraft. [0004] A pressure vessel fixing device for a spacecraft according ...
Claims
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IPC IPC(8): B64G1/40
CPCB64G1/40
Inventor 肖开阳李旦望任昊吴天宇孙剑超包建国季冬辉
Owner SHANGHAI INST OF SPACE PROPULSION