Explosive Bolt Buffer

A buffer device and explosive bolt technology, applied in the aerospace field, can solve the problems of lightweight, complex and heavy structure, and large impact impact that are not suitable for aerospace tasks, and achieve the effects of compact structure, good modular compatibility, and reduced impact degree.

Active Publication Date: 2019-03-22
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing protection devices for explosive bolts mostly adopt the form of safety boxes or protective baffles. The baffles are designed to absorb kinetic energy and block the free ends that fly out when the explosive bolts are exploded and separated. Although it can effectively reduce the redundant The impact of objects on the cabin, but the impact of the impulse generated during the explosion on other surrounding structures is still relatively large, and its structure is often complex and heavy, with low reliability, which is not suitable for the lightweight and high reliability requirements of space missions

Method used

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Embodiment Construction

[0032] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation or ...

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Abstract

The invention relates to the technical field of aerospace, in particular to an explosive bolt buffering device which comprises an installation base, a protection shell cover and an axial buffering device. An installation groove for installing an explosive bolt and the axial buffering device is formed in the installation base. A through hole for the explosive bolt to pass through is formed in the installation base. The protection shell cover is fixedly arranged on the installation base and can cover a groove opening of the installation groove, and the protection shell cover and the installationbase form a closed space together. The axial buffering device is arranged in the closed space. The effective buffering effect on instant large-impact loads is achieved, and the impact degree of the explosive bolt on an upper-stage cabin section in the stage separation test using process is remarkably reduced; the explosive bolt buffering device has the advantages of being small in part number, simple in structure, good in machining process, low in cost, convenient to install, compact in structure, light in weight, high in reliability, good in modularization compatibility and suitable for various aircrafts.

Description

Technical field [0001] The invention relates to the field of aerospace technology, in particular to an explosive bolt buffer device. Background technique [0002] Explosive bolts are mostly used for the separation of stages in the aerospace field, but in actual use, after the installation of the explosive bolts, the length of the explosive bolts exposed outside the cabin is longer, and the cabin is assembled and painted in multiple processes A slight carelessness in the circulation process is very likely to bump or scratch the explosive bolt, and there is a safety hazard of accidental detonation of the explosive bolt; on the other hand, the explosive bolt may produce high-speed fragments after detonation, so protective measures are required when using it. Ensure that the debris from the explosion and disconnection of the bolt does not damage the surrounding structures and equipment. In addition, because the explosive separation of the explosive bolt is completed in an instant, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/64
CPCB64G1/641B64G1/645
Inventor 张晓天王睿青李晓刚刘家欣朱浩
Owner BEIHANG UNIV
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