A solid rocket motor high-speed spin test holding device

A solid rocket and motor technology, applied in the field of solid rocket motor high-speed spin test holding devices, can solve the problems of inaccurate testing of thrust-time curve and pressure-time curve, and achieve accurate testing, easy installation and disassembly, The effect of ensuring safety

Active Publication Date: 2021-08-03
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • A solid rocket motor high-speed spin test holding device
  • A solid rocket motor high-speed spin test holding device
  • A solid rocket motor high-speed spin test holding device

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Embodiment Construction

[0036] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation of the present invention will be further described in detail below in conjunction with the accompanying drawings and the implementation process.

[0037] Such as figure 1 , image 3 Shown is a schematic diagram of the solid rocket motor high-speed spin test clamping device, which mainly includes a front connector 1, a high-speed ceramic bearing 2, a measuring component 3, a sleeve 4, a sleeve clamping ring 5, a spin component 6 and a rear connection Item 7.

[0038] Among them, the middle part of the front connecting piece 1 is interference fit with the high-speed ceramic bearing 2, and the data acquisition card 3 is fixed by evenly distributed bolts inside, the large diameter end is connected with the sleeve 4 and the spin assembly 6 through bolts, and the middle part of the sleeve is threaded It is connected with the sleeve to hold the ring 5 tightly...

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Abstract

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. The invention mainly includes a solid rocket motor, a measurement component, a spin component and a fixed support component. The fixed support component is fixedly connected by the front and rear connecting pieces, the sleeve and the sleeve holding the ring to play a supporting role; the measuring component 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 motor; the spin The component consists of a ball spline set, engine tooling, graphite sleeve, spring and pre-tightened end cover, and the engine is fixed and connected to the fixing component. After the high-speed spin test starts, the fixed support component drives the solid rocket motor to spin at a high speed through the ball spline set. After reaching the predetermined speed, the engine ignites to generate thrust, and the axial movement is realized through the ball spline set. The thrust-time curve can be measured. The pressure sensor is directly connected to the engine and can measure the pressure-time curve.

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...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01M15/02G01M15/14
CPCG01M15/02G01M15/14
Inventor黄刚李军伟王向港韩磊徐博王宁飞
OwnerBEIJING INSTITUTE OF TECHNOLOGYGY