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Method and system for function monitoring of lubricated machine elements

A technology for machine components and server systems, applied in general control systems, test/monitor control systems, control/regulation systems, etc., and can solve problems such as expensive and engineering equipment operating failures

Active Publication Date: 2020-01-21
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, frequent and regular maintenance, for example in the form of flushing and lubricating machine elements, can likewise cause operational failures of engineering equipment and thus be costly

Method used

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  • Method and system for function monitoring of lubricated machine elements
  • Method and system for function monitoring of lubricated machine elements
  • Method and system for function monitoring of lubricated machine elements

Examples

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Embodiment Construction

[0040] figure 1 An exemplary embodiment of a system according to the invention for monitoring the failure tendency of a lubricated machine element in an application 100 is shown. In application scenario 100 , wind power installations 105 , 110 are drawn symbolically. The wind power installations 105 , 110 include rolling bearings of oversized design. A rolling bearing comprises, for example, an inner ring, an outer ring and rolling bodies located therebetween, wherein the rolling bodies are in rolling contact with the raceway surfaces of the rings. Furthermore, the contact surfaces are usually lubricated with corresponding lubricants. The rolling bearing is shown enlarged in the application case 100 .

[0041] The ensuing description of the figures refers by way of example to a rolling bearing in the lubricated machine element 112 . In another example, the lubricated machine element can also be only the inner ring, which is subjected to the rolling element overload. Howev...

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Abstract

The invention relates to a method for functional monitoring of machine elements lubricated with a lubricant. The method comprises: receiving (229) measurements relating to the lubricant; determining (230) the current chemical composition of the lubricant based on the measurements; comparing (240) the current chemical composition with a prior known chemical composition stored in a database , wherein a functional failure tendency value is stored in a database, said functional failure tendency value representing the use of a lubricant having a previously known chemical composition in combination with a machine element composed of a previously known material; based on the comparison step (240) identifying ( 250) a functional failure trend value; and outputting (260) a functional failure trend value.

Description

technical field [0001] The invention relates to the monitoring of the function of lubricated machine elements, in particular to a method and a system for the function monitoring of bearings with respect to “white corrosion cracks”. Background technique [0002] Lubricated contacts in engineering equipment are often damaged due to material fatigue. This will cause the failure of the whole engineering equipment. [0003] A form of material fatigue is the so-called "White Etching Cracks" ("White Etching Cracks" in English, hereinafter abbreviated as WEC). Here, in the contact area of ​​machine elements, for example when machine elements roll or slide on each other, cracks can form Appears on and below the material surface and propagates further.In rolling bearings, for example WEC can appear on or near the raceway surface in rolling contact and grow to the material as partially branched fatigue cracks under excessive rolling loads In practice, the occurrence of such WECs caus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/0224G06Q10/20G01M13/04
Inventor 沃尔特·霍尔韦格马库斯·沃尔夫马蒂亚斯·戈斯
Owner SCHAEFFLER TECH AG & CO KG