a breakable cover

A fragile cover and stress tank technology, applied in the field of missile storage and launch systems, can solve the problem that the fragile cover cannot meet the requirements, and achieve the effect of light weight, guaranteed crushing effect, and high strength

Active Publication Date: 2017-07-28
HUBEI SANJIANG AEROSPACE WANFENG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In actual engineering practice, for a specific type of missile, it is found that none of the existing fragile covers can meet the requirements, and there is a technical demand for developing a new type of fragile cover

Method used

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0021] figure 1 It is a three-dimensional diagram of the rigid polyurethane foam fragile cover in the embodiment of the present invention; figure 2 It is a plan view of the rigid polyurethane foam fragile cover in the embodiment of the present invention; image 3 It is a longitudinal sectional view of the rigid polyurethane foam fragile cover in the embodiment of the present invention; Figu...

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Abstract

The invention discloses a frangible cover, the shape of which is a shell similar to the shape of a regular square prism, and the top surface of the outer wall is rounded in an arc-shaped chamfer shape, and the center of the top surface of the inner wall is provided with a ring-shaped stress groove. The four corners of the inner wall are provided with overall cross-shaped stress grooves, and the centers of the cross-shaped stress grooves and the ring-shaped stress grooves coincide. The friable cover of the invention can be broken according to the regular positive center of the cross-shaped stress grooves, without damaging the warhead of the missile, and the breaking process is stable and reliable.

Description

technical field [0001] The invention belongs to the field of missile storage and launching systems, and more particularly relates to a frangible cover. Background technique [0002] The frangible cover is an important part of the missile storage and launch system. It plays a role of sealing and protection during transportation and storage, and it needs to be opened quickly during launch so as not to affect the attitude of the missile. The fragile cover has no prescribed shape, and the fragile cover is required to have the characteristics of simple structure, light weight, high strength, strong designability and high corrosion resistance. [0003] Stress grooves or weakening grooves are generally arranged on the fragile cover. When the missile is launched, the airflow generated by the missile engine before launch or a slight impact on the missile head can be used to break through it, so as to realize the rapid launch of the missile without preparation and improve the rapid co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42B39/22
Inventor 李娜龙登坛马荣张汶淞徐强曹海波石东
Owner HUBEI SANJIANG AEROSPACE WANFENG TECH DEV
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