A rocket engine external fastening device

A rocket engine and fastening device technology, which is applied to rocket engine devices, machines/engines, jet propulsion devices, etc., can solve the problems of large gaps and falling off of missile engine pin connection structures, and achieve simple structure, simple installation, and simple structure Effect

Active Publication Date: 2019-03-01
SHANGHAI XINLI POWER EQUIP RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a rocket motor external fastening device to solve the problem that the missile motor pin connection structure gap may fall off

Method used

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  • A rocket engine external fastening device
  • A rocket engine external fastening device

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Embodiment Construction

[0022] The rocket motor external fastening device proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and use imprecise ratios, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0023] figure 1 and figure 2 It is a schematic diagram of an external fastening device of an air-to-air missile double-pulse solid rocket motor pin connection structure of the present invention. The external fastening device is used for a pin connection structure and is composed of a strap and a screw 3; The body 1 and the taping head 2 are welded; the taping head 2 contains a through hole and a threaded hole; after the two taping heads 2 are welded to both ends of the taping body 1, the through holes on both sides correspond to the threaded holes one by one; the...

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Abstract

The invention provides a fastening device for the outer portion of a rocket engine. The fastening device comprises a fastening wrapping belt, and is characterized in that the two ends of the fastening wrapping belt are provided with a first connecting end and a second connecting end correspondingly, and the first connecting end and the second connecting end are provided with movable connecting devices matched with each other. The fastening device for the outer portion of the rocket engine is simple in structure, reliable and practicable and is used for fixing pins in pin connecting structures in the radial direction, and the pins large in fit clearance are effectively prevented from disengaging from the interiors of pin holes; and pneumatic shaping is effectively conducted on the outer profile of an air-to-air missile, and the missile pneumatic resistance is reduced.

Description

technical field [0001] The invention relates to the field of fastening devices, in particular to an external fastening device for a rocket engine. Background technique [0002] The double-pulse solid rocket motor is composed of two independently working combustion chambers through a mechanical connection structure, which effectively increases the range and flexibility of air-to-air missiles. Among them, the connection structure between the two-stage pulse engine is one of the important design points of the double-pulse engine. On the premise of ensuring a reliable connection between the two-stage pulses, it is necessary to reduce the space layout, reduce the negative mass, and reduce the performance of air-to-air missiles Impact. The connection method of uniformly distributed pins on the circumference is one of the commonly used interstage connection methods of pulse engines. It adopts a relatively simple design structure to reliably meet the use requirements of the connect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/32
CPCF02K9/32
Inventor 孙晓娇沈铁华薛牧遥乐浩陈振阳
Owner SHANGHAI XINLI POWER EQUIP RES INST
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