Calibration measurement device for steady-state thrust of 4-25N attitude control engine in thermal vacuum environment

A calibration measurement and engine technology, applied in the direction of measuring devices, force/torque/power measuring instrument calibration/testing, force/torque/power measuring instrument, etc., can solve unsuitable calibration, poor calibration accuracy, pipeline constraints, etc. Problems, to achieve the effect of stepless mobile fixation, protection of measurement accuracy, and high calibration accuracy

Active Publication Date: 2017-09-26
XIAN AEROSPACE PROPULSION TESTING TECHN INST
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Problems solved by technology

[0023] In order to realize the small thrust calibration measurement requirements of 4-25N attitude control engine, solve the problems caused by pipeline constraints, high temperature and vibration in the measureme

Method used

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  • Calibration measurement device for steady-state thrust of 4-25N attitude control engine in thermal vacuum environment
  • Calibration measurement device for steady-state thrust of 4-25N attitude control engine in thermal vacuum environment
  • Calibration measurement device for steady-state thrust of 4-25N attitude control engine in thermal vacuum environment

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Embodiment Construction

[0073] The thrust calibration measuring device proposed by the present invention includes a base adapter frame 1, a shock absorbing block 2, a fixed frame 3, a balance adapter plate 4, a single-component force balance measuring device 5, a propellant pipeline 6, and a propellant pipeline fixed Device 7 and in-situ calibration device 8;

[0074] The specific functions of the above components are:

[0075] The base adapter frame 1 is used for docking with the foundation of the vacuum chamber. There is a U-shaped hole at the docking position, which is convenient for adjusting the installation position. The material is carbon steel, and the structure adopts a hollow design. Its quality, the hollow position is designed at the minimum bearing position, and the surface of the foundation connecting plate is provided with a threaded blind hole for the connection of the shock absorbing block, which is connected with the shock absorbing block by bolts.

[0076] The fixed frame 3 and the...

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Abstract

The invention relates to a calibration measurement device for steady-state thrust of a 4-25N attitude control engine in a thermal vacuum environment. The calibration measurement device comprises a base transfer frame, shock absorbing blocks, a fixed frame, a balance transfer plate, a single-component balance measurement device, a propellant pipeline, propellant pipeline fixing devices and an in-situ calibration device, wherein the shock absorbing blocks are uniformly mounted between the base transfer frame and the fixed frame; the propellant pipeline fixing devices are fixedly mounted on the periphery of the fixed frame; the propellant pipeline is mounted through the propellant pipeline fixing devices, one end of the propellant pipeline is communicated with an external propellant supply system, and the other end of the propellant pipeline is communicated with a propellant inlet of a to-be-measured attitude control engine; the single-component balance measurement device is mounted at one end of the fixed frame through the balance transfer plate, and the in-situ calibration device is mounted at the other end of the fixed frame. The calibration measurement device meets the requirements of the 4-25N attitude control engine for low thrust calibration measurement and solves the problems that high uncertainty is caused by pipeline constraint, high temperature and vibration in a measurement process, calibration before test run is not proper, the calibration precision is poor and the like.

Description

technical field [0001] The invention relates to aerospace liquid engine tests, in particular to a 4-25N attitude control engine vacuum thermal environment steady-state thrust calibration measuring device. Background technique [0002] As one of the most mature propulsion systems at present, the liquid rocket engine has many unique advantages. It is still the main propulsion system that various countries strive to develop, and has achieved many achievements in both high thrust and small thrust. At present, the United States is still in most propulsion systems. Russia is leading the world in terms of systems, while Russia continues to maintain its leading position in liquid propulsion, especially high-thrust liquid rockets. The European Union and Japan are catching up with the technological level of the United States. Compete. [0003] A rocket engine is part of a rocket's propulsion system. The propulsion system is composed of engine (solid, hydraulic, stamping, attitude co...

Claims

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Application Information

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IPC IPC(8): G01L5/00G01L25/00
CPCG01L5/00G01L25/00
Inventor 寇鑫李广会刘丽宁赵飞党栋李民民赵曙王宏亮李广阔何立春陈豪
Owner XIAN AEROSPACE PROPULSION TESTING TECHN INST
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