In-site calibration device applicable to piezoelectric thrust vectoring frame

A thrust vectoring, piezoelectric technology, used in measuring devices, force/torque/work measuring instrument calibration/testing, instruments, etc., can solve problems such as the inability to guarantee the vertical loading of the center and the large repeatability error of the thrust calibration results. , to achieve good self-centering performance, avoid additional torque, and improve repeatability

Inactive Publication Date: 2018-09-21
BEIJING INST OF AEROSPACE TESTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

All parts are connected by thread, and the thread connection is a clearance fit. Before and after disassembly and assembly on site, the point and direction of

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  • In-site calibration device applicable to piezoelectric thrust vectoring frame
  • In-site calibration device applicable to piezoelectric thrust vectoring frame
  • In-site calibration device applicable to piezoelectric thrust vectoring frame

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Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and technical solutions.

[0014] Such as figure 1 As shown, the on-site calibration device includes 1 loading cylinder, 2 column type standard force sensor, 3 universal pull ring, 4 concave joint, 5 loading rod, 6 thrust joint bearing, 7 calibration flange, etc.

[0015] The loading cylinder 1 and the column type standard force sensor 2 are connected by threads. After the connection, the two must be in a pre-tightened state; the standard force sensor 2 and the universal pull ring 3 are also threaded. On the standard force sensor 2, first Install the spare nut, and then connect it to the universal pull ring 3 for pretension; the universal pull ring 3 and the concave joint 4 are connected with a short pin, and the rear end of the concave joint 4 is connected to the loading rod 5, and the loading rod 5 passes through the thrust joint The bearing 6 acts on the cen...

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PUM

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Abstract

The invention provides an in-site calibration device applicable to a piezoelectric thrust vectoring frame, which is applied to a thrust test system, and particularly relates to an attitude and orbit control engine thrust vector measurement system. The device is formed by a loading cylinder, a column type normalized force sensor, a loading rod, a universal pull ring, a concave connector and a thrust joint bearing. The normalized force sensor adopts a column type structure form, the normalized force sensor is connected with the loading rod by the universal pull ring, and the thrust joint bearingis adopted for force transfer on a force measuring instrument. The device has the advantages that the centering of the whole calibration device is good, and a flexible connection manner is adopted, so that additional torque in calibration can be effectively avoided and the calibration repeatability of the thrust frame can be remarkably improved.

Description

technical field [0001] The invention relates to an on-site calibration device for a piezoelectric thrust vector frame, which belongs to the technical field of attitude and orbit control engine test thrust measurement. Background technique [0002] The engine thrust vector is a space force vector whose magnitude and direction are constantly changing. In the high-altitude simulation test of the on-orbit / attitude control engine, the thrust vector is an important parameter that needs to be obtained during the engine test process, and is an important criterion for engine performance. Due to the high requirements on the thrust vector measurement accuracy of the orbit / attitude control engine, in-situ thrust calibration work is usually required before the test. [0003] The thrust vector frame is the main device for fixing the engine and measuring the thrust vector. At present, the piezoelectric six-component thrust vector frame is generally used in China to measure the thrust vect...

Claims

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Application Information

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IPC IPC(8): G01L25/00
CPCG01L25/00
Inventor 王得志孙树江曹纯凌思睿郑鑫朱昊伟李海涛
Owner BEIJING INST OF AEROSPACE TESTING TECH
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