Structure and function integrated flexible structure and mold thereof

Abstract

The invention relates to a structure and function integrated flexible structure and a mold thereof. The structure and function integrated flexible structure comprises a core shaft, a heat insulation air bag, a sealing connection system and an inflation pressure stabilizing system, wherein the heat insulation air bag is of a cylindrical structure with the core shaft as a center shaft, and end sockets with gradually-shrunk openings are arranged at the two ends of the heat insulation air bag; the sealing connection system is arranged at an opening of the sealing head and is used for sealing the heat insulation air bag and connecting an external device; and the inflation pressure stabilizing system is connected to the sealing connection system and used for inflating the heat insulation air bag and maintaining the air pressure in the heat insulation air bag to be stable. The mold comprises a core shaft and an assembly shell, the core shaft is used as a center shaft of the assembly shell, and the two ends of the core shaft extend out of the assembly shell. The flexible structure can serve as a winding core mold in the winding forming process, after a combustion chamber shell is formed, the mold can be detached, the flexible structure does not need to be disengaged, and the flexible structure can serve as a heat insulation structure of the combustion chamber shell.

Description

Technical field [0001] The present invention relates to the field of winding forming, and more particularly to a structural function integrated flexible structure and a mold. Background technique [0002] The main process of the conventional solid rocket engine composite combustion chamber housing is to assemble the head and the heat insulating layer on the rigid core mold, and then wound the fiber layer, after high temperature solidification, the rigid core die structure is mainly There is a combination assembled core mold, a full metal core mold, a rinseed core mold. For large composite combustion chamber housings, there is a problem with a conventional core die scheme, and have problems such as a large amount of difficulty, high cycle, high cost and difficult to guarantee. Especially the core die deflection deformation and thermal expansion cannot be overcome, even if it consumes huge investment Making a core mold can also be difficult to meet the development needs of large co...

AI Technical Summary

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.

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