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Large segmented composite shell connection structure and shell winding method

A composite material and connection structure technology, applied in jet propulsion devices, rocket engine devices, machines/engines, etc., to achieve the effects of large axial tension, reliable connection, and uniform distribution of structural loads

Active Publication Date: 2018-03-09
湖北三江航天江北机械工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, domestic segmented shell connection technology is mostly used for metal engine shells, and there are few reports on composite material segmented shell technology. This technology is a relatively new field in China.

Method used

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  • Large segmented composite shell connection structure and shell winding method
  • Large segmented composite shell connection structure and shell winding method
  • Large segmented composite shell connection structure and shell winding method

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0017] The large segmental composite material shell connection structure designed by the present invention, such as Figure 1~3 Shown, it comprises left segment rocket motor housing 7, right segment rocket motor housing 14, the left segment motor housing head 2 that is installed in left segment rocket motor housing 7 left ends, is installed in left segment rocket motor housing 7 The left connecting piece 5 on the right end, the right section engine casing head 15 installed on the right end of the right section rocket engine casing 14, the right connecting piece 6 installed on the left end of the right section rocket engine casing 14, the left section rocket engine casing Body 7 and right segment rocket motor housing 14 are fixedly connected by left connecting piece 5 and right connecting member 6, and the right end of described left segment rock...

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Abstract

The invention relates to a large segmented composite material shell connection structure. A left-segment rocket engine shell and a right-segment rocket engine shell of the large segmented composite material shell connection structure are fixedly connected through a left connection piece and a right connection piece, spiral winding is performed between each first fiber winding hanging pile and a left-segment engine shell sealing head through fiber to form a first spiral inclined winding layer, annular winding is performed on the outer surface of the first spiral inclined winding layer through fiber to form a first annular winding layer, spiral winding is performed between each second fiber winding hanging pile and a right-segment engine shell sealing head through fiber to form a second spiral inclined winding layer, and annular winding is performed on the outer surface of the second spiral inclined winding layer through fiber to form a second annular winding layer. By means of the large segmented composite material shell connection structure, large segmented composite material shells can be connected highly stably and wound and formed highly automatically.

Description

technical field [0001] The invention relates to a fiber winding process and connection technology for a shell without a head, in particular to a large segmented composite material shell connection structure and a shell winding method. Background technique [0002] The connection of filament wound products plays an important role in the design of composite structures. Facts have shown that a reasonable connection design can not only meet the requirements of use, reduce the quality of the structure, but also prolong the service life of the structure. Filament winding is an ideal process for producing fiber-reinforced composite rocket engine shells. The shell is generally a cylindrical shell with spherical, ellipsoidal or equal tension balanced heads at both ends, which is not only suitable for filament winding molding but also conducive to the wrapping connection of metal joints. The fiber winding and connection of the shell without head is the bottleneck technology of the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/00B29C70/32
CPCB29C70/32F02K9/00F05D2240/14
Inventor 卓艾宝余峰吴钦周生攀初敬生
Owner 湖北三江航天江北机械工程有限公司
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