A solid attitude and orbit control engine nozzle plugging cover

Abstract

The invention discloses an ejecting pipe blocking cover of a solid attitude or trajectory control motor. The ejecting pipe blocking cover mainly comprises three parts, namely, a pressing cover, a blocking head and a blocking cover assembly, wherein the blocking head is pressed into a specified position at a throat part of an ejecting pipe from an injecting pipe contracting section through the pressing cover; the blocking cover assembly is mounted at the tail part of a diffusion section of the ejecting pipe, and the blocking cover assembly is close to the end surface of the ejecting pipe. With the adoption of the ejecting pipe blocking cover of the solid attitude or trajectory control motor, the air tightness in the motor under different pressure conditions. The ejecting pipe blocking cover is free from cracks, broken pieces and other circumstances, and is reliable to seal, stable to start, and high in reliability; the ejecting pipe blocking cover is applicable to an ejecting pipe structure of a small and intermediate solid attitude or trajectory control motor and is high in expansion property; the ejecting pipe structure is convenient to dismount; a bearing part of the blocking cover is recycled; and the cost is low.

Description

technical field [0001] The invention belongs to the field of forming nozzles of solid attitude control engines, and in particular relates to a plugging cover for nozzles of solid attitude control engines. Background technique [0002] The solid attitude control engine system has the characteristics of few components, simple structure, low cost, easy production, use, long-term storage, and convenient maintenance. [0003] The solid attitude orbit control engine is generally composed of a gas generator, an actuator, a control unit, and a thrust nozzle. In general, each attitude control system has multiple thrust nozzles, and through the coordination and cooperation of multiple thrust nozzles, the aircraft's yaw, pitch, roll attitude control and orbit control are realized. [0004] The nozzle plug is one of the key components of the solid attitude and orbit control engine. It plays a role of sealing and moisture-proof during storage and combat readiness. At the moment of engin...

AI Technical Summary

Problems solved by technology

This structure is only suitable for the structure of small nozzles. The diameter of the diffusion section of large nozzles is larger, and the bursting pressure of the required bursting disc is also higher. The detection of internal airtightness, and considering the pressure bearing strength of the nozzle, it is difficult for this type of plug to be widely used

The structure of the bursting disc nozzle will also produce fragments during blasting, which may cause damage to the attitude and orbit control system

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