JP4405316B2 - 転がり軸受の劣化評価方法 - Google Patents
転がり軸受の劣化評価方法 Download PDFInfo
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- JP4405316B2 JP4405316B2 JP2004161966A JP2004161966A JP4405316B2 JP 4405316 B2 JP4405316 B2 JP 4405316B2 JP 2004161966 A JP2004161966 A JP 2004161966A JP 2004161966 A JP2004161966 A JP 2004161966A JP 4405316 B2 JP4405316 B2 JP 4405316B2
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- Prior art keywords
- rolling bearing
- value
- time
- wear
- deterioration evaluation
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- 238000005096 rolling process Methods 0.000 title claims description 51
- 238000011156 evaluation Methods 0.000 title claims description 21
- 230000015556 catabolic process Effects 0.000 title description 2
- 238000006731 degradation reaction Methods 0.000 title description 2
- 230000006866 deterioration Effects 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 19
- 230000005856 abnormality Effects 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 description 20
- 230000002159 abnormal effect Effects 0.000 description 6
- 230000008021 deposition Effects 0.000 description 6
- 239000010687 lubricating oil Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 238000003745 diagnosis Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Rolling Contact Bearings (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Description
(n:回転数(rpm)、C:基本動定格荷重、P:軸受荷重)
そして、実験結果をもとに軸受の異常認知から寿命(焼付きまたは破損)までの余寿命計算式を下記式(2)で表したものが知られている(非特許文献1参照)。
井上紀明著「現場の質問に答える 実践 振動法による設備診断」日本プラントメンテナンス協会出版
本発明者らは、このIs値に着目し、Is値と転がり軸受の余寿命との関係を検討したところ、多数の過去の診断データ及び新たな劣化加速試験による試験データから、Is値と余寿命との間に密接な関係があり、Is値が所定値まで増大すると転がり軸受の劣化が開始しつまり転がり軸受に異常が発生し、その後、Is値がさらなる所定値まで増大すると転がり軸受が焼付きまたは破損を起こすことが判明した。さらに、転がり軸受の劣化開始時点(異常発生時点)から焼付きまたは破損が生じる時点(寿命時点)までのIs値の変化曲線は指数関数などで代表できることが判明した。
Claims (1)
- 試験用転がり軸受に定量フェログラフィ法を適用することによって求めたIs値から転がり軸受劣化評価曲線を作成する工程と、
実機転がり軸受の異常発生後の任意の時点で定量フェログラフィ法を適用し、Is値を求める工程と、
該求めたIs値を前記転がり軸受劣化評価曲線上に展開して時点t a を求めるとともに、寿命時点に対応するIs値を前記転がり軸受劣化評価曲線上に展開して管理寿命時点t END を求め、前記管理寿命時点t END から前記時点t a を減算することによって当該実機転がり軸受の余寿命T J を求める工程と
からなることを特徴とする転がり軸受の劣化評価方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2004161966A JP4405316B2 (ja) | 2004-05-31 | 2004-05-31 | 転がり軸受の劣化評価方法 |
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Application Number | Priority Date | Filing Date | Title |
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JP2004161966A JP4405316B2 (ja) | 2004-05-31 | 2004-05-31 | 転がり軸受の劣化評価方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005345132A JP2005345132A (ja) | 2005-12-15 |
JP4405316B2 true JP4405316B2 (ja) | 2010-01-27 |
Family
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JP2004161966A Expired - Fee Related JP4405316B2 (ja) | 2004-05-31 | 2004-05-31 | 転がり軸受の劣化評価方法 |
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JP (1) | JP4405316B2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4584085B2 (ja) * | 2005-09-07 | 2010-11-17 | トライボテックス株式会社 | 転がり軸受の劣化評価方法 |
JP4833126B2 (ja) | 2007-03-26 | 2011-12-07 | Ntn株式会社 | 潤滑剤劣化検出装置および検出装置付き軸受 |
JP5990729B1 (ja) * | 2015-04-03 | 2016-09-14 | トライボテックス株式会社 | 汎用劣化曲線作成方法及び機械寿命予測方法、並びに汎用劣化曲線作成プログラム及び機械寿命予測プログラム |
JP2019045166A (ja) * | 2017-08-30 | 2019-03-22 | 株式会社荏原製作所 | 転がり軸受を備える機械の運転管理方法及び運転管理システム |
JP7164480B2 (ja) * | 2019-03-29 | 2022-11-01 | 株式会社日立製作所 | グリース劣化診断装置及びその方法 |
CN113486455A (zh) * | 2021-04-29 | 2021-10-08 | 河南科技大学 | 一种自润滑关节轴承加速退化可靠性评估与寿命预测方法 |
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- 2004-05-31 JP JP2004161966A patent/JP4405316B2/ja not_active Expired - Fee Related
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