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A flexible structure with integrated structure and function

A technology of flexible structure and function, which is applied in the field of structural-functional integrated flexible structure and its mould, which can solve the problems of long cycle, difficult to guarantee precision, and high cost, and achieve the effects of low cost, reduced disassembly cycle, and high use efficiency

Active Publication Date: 2022-04-15
THE GENERAL DESIGNING INST OF HUBEI SPACE TECH ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a flexible structure with integrated structure and function and its mold to solve the problems of high cost, long period and difficulty in ensuring accuracy in the molding of solid rocket motor combustion chamber shells in the related art.

Method used

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  • A flexible structure with integrated structure and function
  • A flexible structure with integrated structure and function
  • A flexible structure with integrated structure and function

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Embodiment Construction

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042]In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. I...

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Abstract

The invention relates to a flexible structure integrating structure and function, which includes a mandrel; an insulating airbag, which is a cylindrical structure with the mandrel as the central axis, and two ends are provided with sealing heads with tapered openings; a sealing connection system, which is located on the The opening of the head is used for sealing the heat-insulating airbag and connecting external devices; and the inflation and pressure stabilization system is connected to the sealing connection system for inflating the heat-insulating airbag and maintaining the stability of the air pressure in the heat-insulating airbag. The mold includes a mandrel and an assembled shell, the assembled shell takes the mandrel as the central axis, and the two ends of the mandrel protrude from the assembled shell. The flexible structure can be used as a winding mandrel during the winding molding process. After the combustion chamber casing is formed, the mold can be removed, and the flexible structure does not need to come out, and can be used as a heat insulation structure for the combustion chamber casing.

Description

technical field [0001] The invention relates to the field of winding forming, in particular to a flexible structure with integrated structure and function and a mold thereof. Background technique [0002] The main process of traditional solid rocket motor composite combustion chamber shell molding is to assemble the head and lay the heat insulation layer on the rigid mandrel structure, then wind the fiber layer, and release the product after high temperature curing. The rigid mandrel structure is mainly There are assembled mandrels, all-metal mandrels, flushable mandrels and other structures. For large-scale composite combustion chamber shells, conventional mandrel solutions have problems such as difficult manufacturing, long cycle time, high cost, and difficulty in ensuring accuracy. In particular, mandrel deflection deformation and thermal expansion deformation cannot be overcome. Manufacture of a mandrel may also be difficult to meet the development needs of large compos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/34B29C70/54
CPCB29C70/342B29C70/54
Inventor 赵飞周睿司学龙钟志文万佩李莹高阿婷
Owner THE GENERAL DESIGNING INST OF HUBEI SPACE TECH ACAD
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