Solid rocket engine high-speed spinning test enclasping device

Abstract

The invention belongs to the technical field of solid rocket engine ground tests, and particularly relates to a solid rocket engine high-speed spinning test enclasping device. The device mainly comprises a solid rocket engine, a measuring assembly, a spinning assembly and a fixed support assembly. The fixed support assembly is fixedly connected by front and rear connecting pieces, a sleeve and a sleeve enclasping ring, and plays a supporting role; the measuring assembly is composed of a pressure sensor, a thrust sensor and a fixed base, and is fixed with the front connecting piece and the solid rocket engine; the spinning assembly is composed of a ball spline set, an engine tool, a graphite sleeve, a spring and a pre-tightening end cover, and the engine is connected with the fixed supportassembly after being fixed. After a high-speed spinning test is started, the fixed support assembly drives the solid rocket engine to spin at a high speed through the ball spline set, the engine is ignited to generate a thrust after the preset rotating speed is reached, axial movement is achieved through the ball spline set, a thrust-time curve can be measured, the pressure sensor is directly connected with the engine, and a pressure-time curve can be measured.

Description

technical field [0001] The invention belongs to the technical field of ground testing of solid rocket motors, and in particular relates to a fastening device for high-speed spin tests of solid rocket motors. Background technique [0002] In order to ensure the stability of the projectile or the orbit of the aircraft and increase the range, the existing spacecraft often use the method of rotating the projectile around its own axis, that is, through "high-speed spin" to reduce the impact of thrust eccentricity and manufacturing asymmetry on orbital stability , reducing the impact spread. In the bottom-row rocket compound range-extended bomb, the gas generated by the combustion of the bottom-row charge fills the high-speed moving tail vacuum area, reducing the pressure difference between the warhead and the tail, reducing flight resistance and increasing the range. However, under high-speed rotation conditions, the performance of solid rocket motors will be greatly affected, s...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of inaccurate testing of the thrust-time curve and pressure-time curve of the solid rocket motor under the state of high-speed spin in the prior art, and to provide a solid rocket motor high-speed spin test clamping device

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