Integral forming method for engine case and spraying pipe

A technology of an engine casing and a molding method, which is applied to household components, applications, household appliances, etc., can solve the problems of large negative weight and other problems, and achieve the effects of improving the quality ratio, low price, and short cycle.

Active Publication Date: 2016-09-28
湖北三江航天江北机械工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conventional filament-wound engine casing is usually connected to the metal flange on the nozzle through the head after winding the casing, and the negative weight is still relatively large.

Method used

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  • Integral forming method for engine case and spraying pipe
  • Integral forming method for engine case and spraying pipe
  • Integral forming method for engine case and spraying pipe

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, so as to facilitate a clearer understanding of the present invention, but they do not limit the present invention.

[0022] Such as figure 1 As shown, the integrated structure of the engine casing and the nozzle includes the nozzle 3 and the engine casing. The engine casing includes the main body part 1 of the engine casing and the front head 2 connected to the front end of the main body part 1 of the engine casing. A certain type of engine The structural parameters of the shell and nozzle integration are shown in Table 1.

[0023] The specific parameters are shown in Table 1:

[0024]

[0025] Table 1

[0026] combine figure 2 As shown, the specific molding process is as follows:

[0027] 1) Form the nozzle pipe 3, the front head 2 and the core mold 6 respectively, wherein: the shape of the core mold 6 is consistent with the in...

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PUM

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Abstract

The invention discloses an integral forming method for an engine case and a spraying pipe, and relates to a process of integrating the spraying pipe and the engine case rapidly and efficiently. The engine case comprises an engine case body and a front end socket connected with the front end of the engine case body, the structure that an engine case and a spraying pipe are formed independently and then connected through metal in the prior art is eliminated, instead, the spraying pipe and an engine case rear connector are combined into a whole, and formed along with the engine case in a winding mode together after the spraying pipe is assembled in place. A winding layer replaces an original spraying pipe metal shell body, the engine case rear connector, the spraying pipe metal shell body, a connector and the like are omitted, and the mass ratio of an engine can be effectively improved. In addition, the integral forming method is simple, short in period, low in price and particularly suitable for the engine case wound by fibers.

Description

technical field [0001] The invention belongs to the technical field of rocket engine casing molding, and in particular relates to an integral molding method of an engine casing and a nozzle. Background technique [0002] The development of high-quality ratio solid motors is the development goal of solid propulsion technology. The negative mass of the rocket motor will reduce the carrying capacity of the rocket, and the effect will be greater the higher the stage. [0003] Filament wound engine case can effectively reduce the negative weight of the engine case, which is the main development direction of the engine in the future. However, the conventional filament-wound engine casing is usually connected to the metal flange on the nozzle through the head after winding the casing, and the negative weight is still relatively large. Contents of the invention [0004] The purpose of the present invention is to address the shortcomings of traditional processing methods and prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C53/70B29C53/82B29K63/00B29L31/30
CPCB29C53/70B29C53/8008B29C53/821B29K2063/00B29L2031/749
Inventor 魏虹张志斌邓德凤黄泽勇李天明余峰
Owner 湖北三江航天江北机械工程有限公司
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