An adjustable measurement reference device for high-energy x-ray testing of aero-engines

Abstract

The invention relates to an adjustable measurement reference device for the high-energy X-ray testing of an aeroengine, and the device is characterized in that the device comprises a cross beam, a connecting rod, an adjusting nut, a reference block, a pedestal, and a support; two ends of the cross beam are respectively fixed with one end of the pedestal and one end of the support; the other end of the pedestal and the other end of the support are fixed in an intermediate case; the cross beam is provided with a chute passing through the body; the connecting rod passes through the chute, and can slide along the chute to form a first sliding direction; the adjusting nut enables a pull rod and the cross beam to be fixed; the reference block is disposed at the tail end of the connection rod, and can slide along the connection rod to form a second sliding direction, wherein the first sliding direction is perpendicular to the second sliding direction, and the tail end is close to the axis of the engine. The device provided by the invention can precisely measure the relative position of a turbine disc and the case, is simple in structure, and is good in imaging effect.

Description

technical field [0001] The invention belongs to the technical field of aero-engine test and measurement, and in particular relates to an adjustable measurement reference device for high-energy X-ray testing of aero-engines. Background technique [0002] High-energy X-ray fluoroscopy and photography technology play an important role in human body examination and disease diagnosis, and are also effective methods and means in aero-engine test and fault diagnosis. This test technology has been maturely applied in foreign engine companies, and it is the first time to use it in the development of engines in our country. There are still many problems in practical application. [0003] The gas turbine aero-engine has a complex structure, harsh working conditions, and difficult design, requiring a large number of test verifications. The radial and axial clearances (such as blade tip clearance and sealing clearance) between the rotor parts and stator parts of the engine have a signif...

AI Technical Summary

Problems solved by technology

The existing problem is that the dimension L is very large, and the X-ray imaging area S( figure 1 (shown by the dotted line in the middle) is small (such as no more than 200mm×200mm), and can only include point B, and cannot directly measure the distance between points A and B

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