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Device for calibrating geometric quantity of static calibration table of wind tunnel balance

A calibrating device and a technique for geometric quantities, applied in the field of geometric quantities, can solve the problems of difficult and accurate measurement of the geometric parameters of the reset mechanism of the measurement system and low measurement efficiency, etc.

Active Publication Date: 2015-04-29
BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the geometric parameters of the existing wind tunnel Tianping calibration platform loading mechanism, measurement system and reset mechanism are difficult to accurately measure and the measurement efficiency is low, and propose a wind tunnel Tianping calibration platform geometric quantity calibration device

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  • Device for calibrating geometric quantity of static calibration table of wind tunnel balance
  • Device for calibrating geometric quantity of static calibration table of wind tunnel balance
  • Device for calibrating geometric quantity of static calibration table of wind tunnel balance

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples.

[0038] In this embodiment, the geometric quantity calibration device of the wind tunnel Tianjing calibration platform includes: a portable support base, a lateral electric precision displacement platform 7, a precision turntable assembly, a micrometric collimation telescope assembly and a reference cube mirror assembly 24. The structure of its main part is as figure 1 shown.

[0039] The portable support base includes: casters 1, base 2, adjustable feet 18, diagonal stay rods 4, support frame 3, liftable support platform 5, screw lifter 17 and sliding guide rail assembly 16. The support frame 3 is installed on the base 2 . One end of the diagonal stay rod 4 is fixed on the support frame 3 , and the other end is fixed on the base 2 to increase the rigidity of the support frame 3 . The caster 1 and the tin pin 18 are fixed on the base 2; th...

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Abstract

The invention discloses a device for calibrating geometric quantity of a static calibration table of a wind tunnel balance, belongs to the field of geometric quantity, and is suitable for calibrating geometric parameters of a return mechanism of the static calibration table of the wind tunnel balance, a measurement system and a loading mechanism. According to the device, a loading coordinate system is reproduced by cooperation of a micro-alignment telescope and a reference cubic mirror mounted on a loading head; the micro-alignment telescope is rotated at an angle of 180 degrees by a precise rotary table; a linear guide rail equipped with a double-grating scale is driven to drive the micro-alignment telescope to move and be aligned to a reference line of the loading mechanism, and the geometric parameters of the loading mechanism are measured by data of the double-grating scale, so that the problems of low precision and low efficiency of an existing mounting measurement method are solved; in addition, a lifting mechanism is driven through a spiral lifting machine to adjust the height of the device, so that the calibration needs of geometric parameters of static calibration stables of wind tunnel balances different in type can be met.

Description

Technical field [0001] The invention relates to a geometric quantity calibrating device for a wind tunnel Tianping calibration platform, which belongs to the field of geometric quantities and is suitable for calibrating geometric parameters of a wind tunnel Tianping calibration platform resetting mechanism, a measurement system and a loading mechanism. Background technique [0002] With the development of aviation and aerospace technology, higher requirements are put forward for the measurement accuracy of wind tunnel experiments. The wind tunnel balance is an important measuring device used to measure the aerodynamic force acting on the aircraft model in the test, and its measurement accuracy directly affects the quality of the wind tunnel experiment. It can decompose the resultant aerodynamic force acting on the aircraft model into several components according to a certain rectangular coordinate system, transmit them to the measuring components of each component and give t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/06
Inventor 孙安斌马骊群曹铁泽王继虎赵旭坤邱俊文甘晓川李洋高廷徐越孙雨
Owner BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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