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Nondestructive test of sealing member

A sealing structure and annular sealing technology, which is applied to the sealing of engines, pump components, measuring devices, etc.

Active Publication Date: 2012-05-16
SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This operation takes several hours, and there is also the cost of the teflon membrane

Method used

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  • Nondestructive test of sealing member
  • Nondestructive test of sealing member
  • Nondestructive test of sealing member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The inspection device shown in FIG. 1 includes a bracket 11 with at least one eddy current probe 13, a robot 15 with the bracket, and a turntable 17 mounted to rotate around the Y axis in an automatic mode. In this example, it is vertical. The robot 15 has a telescopic arm 19, and the bracket 11 is installed at the end of the telescopic arm. The telescopic arm 19 is horizontal and can move vertically. The robot is programmed to adjust the position of the carriage relative to the turntable, so that various oil scraper rings located on the drum 25 on the turntable can be checked.

[0019] In the example shown, the drum 25 is located on the turntable and fixed in such a way that its main symmetry axis coincides with the vertical rotation axis Y of the turntable 17. As shown in the figure, the impeller drum 25 is placed on a turntable, which consists of adjacent wheels 30 welded to each other. Between two consecutive wheels, a sealing structure 26 composed of a plurality of...

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PUM

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Abstract

The invention relates to a device for testing a sealing member extending on the surface of the drum of the vane-including wheel of a rotor. The device includes a carriage (HA) comprising at least two guiding rollers (36) and bearing a probe (13) situated at a location such that it is positioned opposite and at a predetermined distance from a ridge of the sealing member to be tested when the carriage is in position.

Description

Technical field [0001] The invention relates to a non-destructive inspection of an annular seal wiper extending along the surface of a turbine engine impeller drum. In particular, the present invention relates to the vortex inspection of the edges of the oil scraper rings that usually extend in several groups of oil scraper rings, each group of oil scraper rings being located between the discs that constitute the drum. Background technique [0002] In aircraft turbojet engines, the turbine (such as a compressor) has an impeller drum mounted to rotate about its main axis. The drum (usually referred to as the "shaft") carries all the rotor blades. Each stage of the compressor has a ring of movable blades, which are regularly spaced along the circumference of the disc. The assembled wheels constitute the above-mentioned impeller drum. [0003] Between the turns of the movable blades, several turns of stator blades are arranged. The seal between two consecutive stages can be obtain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/44G01N27/90F01D5/00F01D11/02F01D21/00F01D25/28
CPCF05B2260/80F01D11/00G01N27/902G01N27/9053F04D27/001F04D29/102F05D2260/80
Inventor 萨迪亚·布斯凯杰拉德·德瑞恩卡罗琳娜·加西亚-洛佩兹吉恩-杰克斯·奈德莱克
Owner SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A