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An aircraft vortex cooling shaft displacement measuring device and method for measuring vortex cooling shaft displacement

A technology of measuring device and measuring method, applied in the direction of measuring device, electric device, instrument, etc., can solve the problems of narrow space, difficult measurement of workpiece, and difficulty, and achieve the effect of simple structure, high precision and fast centering

Active Publication Date: 2017-12-05
北京丰荣航空科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the axial and radial runout measurement of the vortex cooling shaft of the commonly used aircraft usually uses two tools, the dial gauge measurement and the special tester, among which the dial gauge is suitable for the radial displacement at static or low speed; Only the radial displacement of the shaft can be tested separately. After assembly, it is difficult and expensive to measure workpieces with complex shapes
In addition, the diameter of the shaft also has a large limit. The minimum diameter of the shaft measured by the common tester is 15mm; and the cold inspection diameter is only 7.9mm and the space is narrow. It is very difficult to accurately detect the displacement of 0.05mm, which cannot meet the requirements of modern high-precision products. need

Method used

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  • An aircraft vortex cooling shaft displacement measuring device and method for measuring vortex cooling shaft displacement
  • An aircraft vortex cooling shaft displacement measuring device and method for measuring vortex cooling shaft displacement
  • An aircraft vortex cooling shaft displacement measuring device and method for measuring vortex cooling shaft displacement

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Experimental program
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Effect test

Embodiment 1

[0021] First, fix the vortex cooling shaft under test in the center hole of the Y-shaped bracket 11, fix the relative position between the outer circle of the vortex cooling shaft of the workpiece under test and the probe head of the current displacement sensor, and adjust the current displacement sensor 6 probe with the adjusting bolt 7 The distance between the head and the outer circle of the vortex cooling shaft of the workpiece under test is 0.5mm; connect the external air source port, start the electrical appliance, and record the position of the vortex cooling shaft of the workpiece under test, and turn on the air source when the compressor inlet flow reaches 74.0lb / min, the compressor inlet pressure reaches 48PISA±0.5PISA, when the compressor outlet reaches 68.0PISA, the turbine outlet pressure is 15.0PISA±0.5PISA; when the compressor inlet temperature is 112±3℃, the compressor outlet The temperature is 168°C, the inlet temperature of the turbine is 87±3°C, the maximum ...

Embodiment 2

[0023] When the compressor inlet flow reaches 102lb / min, the compressor inlet pressure reaches 65PISA±40PISA, the compressor outlet reaches 98.0PISA, the turbine outlet pressure is 15.2PISA±0.5PISA, the compressor inlet temperature reaches a maximum of 115℃, and the compressor outlet The temperature is 188°C, the maximum turbine inlet temperature is 93°C, the turbine outlet temperature is minus 36°C, and the rotation speed is 64000±1000RPM. At this time, look at the current position, the radial runout is ≤0.05mm, and the axial movement is ≤0.1mm. The vortex cooling axis of the measured workpiece is within the allowable range and can be shipped from the factory.

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Abstract

The invention discloses a device and method for measuring the displacement of a turbo-cooling shaft of an aircraft, and belongs to the field of detection tools of aircraft components. A Y-shaped support is fastened on a cutting sleeve seat via inner-hexagonal screws, slide blocks are fixed on the Y-shaped support, sensor poles are vertically fixed under the slide blocks respectively, and a current displacement sensor is fixed on the sensor poles. When the displacement of the turbo-cooling shaft is measured, the measuring device is directly nested into the inner circle of a volute on the basis of the outer circle of the volute, a central circular hole of the Y-shaped support sleeves the outer circumference of the turbo-cooling shaft of the measured workpiece, and the distance between the probe portion of the current displacement sensor and the outer circumference of the turbo-cooling shaft of the measured workpiece; and the current displacement sensor measures the relative position between the outer circumference of the turbo-cooling shaft and the end surface of the current displacement sensor to complete test for the shaft displacement. The non-contact type rotating shaft displacement measuring device is simple in structure and operation, rapid in centering, high in precision and practicality, and suitable for measurement in complex conditions.

Description

technical field [0001] The invention belongs to the technical scope of aircraft component detection, and in particular relates to an aircraft vortex cooling shaft displacement measuring device and a method for measuring vortex cooling shaft displacement. Background technique [0002] At present, the axial and radial runout measurement of the vortex cooling shaft of the commonly used aircraft usually uses two tools, the dial gauge measurement and the special tester, among which the dial gauge is suitable for the radial displacement at static or low speed; Only the radial displacement of the shaft can be tested separately. After assembly, the workpiece with complex shape is difficult to measure and the cost is high. In addition, the diameter of the shaft also has a large limit. The minimum diameter of the shaft measured by the common tester is 15mm; and the cold inspection diameter is only 7.9mm and the space is narrow. It is very difficult to accurately detect the displacemen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/02
Inventor 徐克强白少坡孙浩
Owner 北京丰荣航空科技股份有限公司