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inspection vehicle for inspecting roughly cylindrical objects

A vehicle, cylindrical technology, applied in the direction of material analysis, engine function, instrument, etc. using sonic/ultrasonic/infrasonic waves, can solve problems such as long preparation time, and achieve the effect of increasing flexibility, avoiding damage, and high adhesion

Active Publication Date: 2017-08-18
GENERAL ELECTRIC TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Robot arms are very flexible in their application, but require larger robots and longer preparation times
It is particularly disadvantageous that the rotor to be checked has to be turned, which necessitates a (heavier and more expensive) turning mechanism

Method used

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  • inspection vehicle for inspecting roughly cylindrical objects
  • inspection vehicle for inspecting roughly cylindrical objects
  • inspection vehicle for inspecting roughly cylindrical objects

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] figure 1 A photograph of a rotor 10 of a steam turbine is shown with a plurality of blade rows 12 with rotor blades 13 arranged around a central rotor shaft 11 . The rotor blades 13 are held with their blade bases in annularly circumferential blade grooves and form a circumferential blade gap 14 therebetween, one of which is in the figure 2 is partially shown in cross-section. figure 2 The vane gap 14 includes rotor vanes 13 in surrounding vane grooves in the rotor shaft 11 and laterally bounded by the rotor vanes 13, which can be used as a lateral reference when the vane gap 14 is passed by a vehicle noodle.

[0063] exist figure 2 Illustratively three sealing strips 16 are shown side by side in the outer surface 15 of the rotor shaft 11 , which are inserted into the outer surface 15 but project radially by a piece from the outer surface 15 . It is especially an obstacle of the type that makes it impossible to use conventional vehicles.

[0064] exist image 3...

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PUM

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Abstract

The invention relates to an inspection vehicle (20) for inspecting substantially cylindrical objects made of magnetizable material, in particular steam turbines or other turbines, having a chassis (21) and a plurality of wheels (22), the wheels ( 22) so rotatably and at least partly motor-drivenly arranged at the chassis (21), that is, the chassis (21) on the wheels (22) can be moved along the The outer circumference is moved, wherein magnetic means are arranged on the chassis (21), which hold the inspection vehicle (20) on the surface of the cylindrical object (10). The inspection is facilitated by the fact that the inspection vehicle (20) has sufficient floor clearance, which makes it possible to drive over obstacles at the outer circumference of the cylindrical object (10) to be inspected, in particular a Or a plurality of ring-shaped sealing strips (16) radially protruding from the surface of the cylinder.

Description

technical field [0001] The present invention relates to the field of inspecting larger parts of rotating machines. It relates to an inspection vehicle according to the preamble of claim 1 . Background technique [0002] In the special rotors of steam turbines, but also other turbines, the rapidly rotating components have to be inspected from time to time, in which the rotors of the turbines are especially inspected for cracks. Such cracks often occur in the surrounding blade mounting grooves where the blades of the turbine are held against the centrifugal forces that arise. Such inspections are often carried out with ultrasonic sensors, which are constructed as single- or multi-channel ultrasonic measuring heads (phased arrays) and carry out a determination of the duration of operation (so-called UT / PA / TOFD technology). During inspection, one or two ultrasonic sensors have to be guided with high precision along the bottom of the blades installed in the rotor in order to sc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C23/00
CPCF01D21/003F01D25/00F01D25/285F05D2260/80G01N29/069G01N29/262G01N2291/2693G01N29/265
Inventor I·托门-斯塔门科夫W·泽施S·拉博德
Owner GENERAL ELECTRIC TECH GMBH
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