JP2009020090A5 - - Google Patents
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- JP2009020090A5 JP2009020090A5 JP2008045019A JP2008045019A JP2009020090A5 JP 2009020090 A5 JP2009020090 A5 JP 2009020090A5 JP 2008045019 A JP2008045019 A JP 2008045019A JP 2008045019 A JP2008045019 A JP 2008045019A JP 2009020090 A5 JP2009020090 A5 JP 2009020090A5
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- Prior art keywords
- abnormality
- abnormality diagnosis
- frequency
- threshold value
- sliding part
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- 238000003745 diagnosis Methods 0.000 claims 17
- 230000002159 abnormal effect Effects 0.000 claims 6
- 238000001514 detection method Methods 0.000 claims 6
- 230000005540 biological transmission Effects 0.000 claims 5
- 230000000875 corresponding Effects 0.000 claims 4
- 238000005259 measurement Methods 0.000 claims 2
- 235000021171 collation Nutrition 0.000 claims 1
- 238000002405 diagnostic procedure Methods 0.000 claims 1
Claims (14)
前記しきい値は、当該部位ごとに個別に設定されている
ことを特徴とする異常診断装置。 The signal generated from the rotating part or sliding part of the mechanical equipment is detected by the detection means, and the detection result is subjected to envelope analysis and frequency analysis to obtain the frequency component of the measured data, and the rotation part or sliding part An abnormal frequency of vibration caused by an abnormality is calculated based on a predetermined relational expression, a frequency component of the actual measurement data corresponding to the abnormal frequency is extracted, and comparison and verification between the extracted frequency component and a threshold value are performed. An abnormality diagnosis device that performs diagnosis of presence / absence of abnormality and identification of a part of the rotating part or the sliding part corresponding to the abnormality,
The abnormality diagnosis apparatus, wherein the threshold value is set individually for each part.
ことを特徴とする請求項１に記載の異常診断装置。 The abnormality diagnosis apparatus according to claim 1 , wherein the threshold is individually set based on a transmission distance or a transmission path of the signal between the part and the detection unit.
ことを特徴とする請求項１または２に記載の異常診断装置。 Before SL threshold, the abnormal frequency, the abnormality diagnostic device according to claim 1 or 2, characterized in that it is set separately for each frequency of the fundamental wave and harmonics.
ことを特徴とする請求項１〜３のいずれか１つに記載の異常診断装置。 The abnormality diagnosis device according to any one of claims 1 to 3, wherein the threshold value is set based on a rotation speed of the rotating part or a moving speed of the sliding part.
ことを特徴とする請求項１〜４のいずれか１つに記載の異常診断装置。 The threshold value is set such that a threshold value of a predetermined part of the rotating part or the sliding part is set based on a threshold value of another predetermined part. 5. The abnormality diagnosis device according to any one of 4 above.
ことを特徴とする請求項１〜５のいずれか１つに記載の異常診断装置。 The abnormality diagnosis apparatus according to claim 1, further comprising transmission means for transmitting the diagnosis and the specific result.
ことを特徴とする請求項１〜６のいずれか１つに記載の異常診断装置。 The abnormality diagnosis apparatus according to claim 1, wherein at least one of the envelope analysis, the frequency analysis, and the comparison and collation is executed by a program of a microcomputer. .
前記しきい値は、当該部位ごとに個別に設定されている
ことを特徴とする異常診断方法。 The signal generated from the rotating part or sliding part of the mechanical equipment is detected by the detection means, and the detection result is subjected to envelope analysis and frequency analysis to obtain the frequency component of the measured data, and the rotation part or sliding part An abnormal frequency of vibration caused by an abnormality is calculated based on a predetermined relational expression, a frequency component of the actual measurement data corresponding to the abnormal frequency is extracted, and comparison and verification between the extracted frequency component and a threshold value are performed. An abnormality diagnosis method for performing diagnosis of presence / absence of abnormality and identification of a part of the rotating part or the sliding part corresponding to the abnormality,
The abnormality diagnosis method, wherein the threshold is individually set for each part.
ことを特徴とする請求項１１に記載の異常診断方法。 The abnormality diagnosis method according to claim 11 , wherein the threshold is individually set based on a transmission distance or a transmission path of the signal between the part and the detection unit.
ことを特徴とする請求項１１または１２に記載の異常診断方法。 Before SL threshold, the abnormal frequency, the abnormality diagnostic method according to claim 11 or 12, characterized in that it is set separately for each frequency of the fundamental wave and harmonics.
ことを特徴とする請求項１１〜１３のいずれか１つに記載の異常診断方法。 The abnormality diagnosis method according to any one of claims 11 to 13, wherein the threshold value is set based on a rotational speed of the rotating part or a moving speed of the sliding part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008045019A JP5146008B2 (en) | 2007-06-11 | 2008-02-26 | Abnormality diagnosis apparatus and abnormality diagnosis method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007153964 | 2007-06-11 | ||
| JP2007153964 | 2007-06-11 | ||
| JP2008045019A JP5146008B2 (en) | 2007-06-11 | 2008-02-26 | Abnormality diagnosis apparatus and abnormality diagnosis method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2009020090A JP2009020090A (en) | 2009-01-29 |
| JP2009020090A5 true JP2009020090A5 (en) | 2011-01-20 |
| JP5146008B2 JP5146008B2 (en) | 2013-02-20 |
Family
ID=40359843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008045019A Active JP5146008B2 (en) | 2007-06-11 | 2008-02-26 | Abnormality diagnosis apparatus and abnormality diagnosis method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5146008B2 (en) |
Families Citing this family (39)
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| JP5330008B2 (en) * | 2009-02-06 | 2013-10-30 | オークマ株式会社 | Rotation accuracy evaluation method and evaluation apparatus |
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| JP5738711B2 (en) * | 2011-07-29 | 2015-06-24 | 株式会社東芝 | Rotating machine state monitoring device, rotating machine state monitoring method, and rotating machine state monitoring program |
| KR101378164B1 (en) * | 2013-05-16 | 2014-03-27 | (주)피씨엠솔루션 | Roller bearing of rotator apparatus under water for remotely detecting trouble |
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| JP7000135B2 (en) * | 2017-11-24 | 2022-01-19 | オークマ株式会社 | Feed shaft abnormality diagnosis method and abnormality diagnosis device |
| CN108279103B (en) * | 2018-01-25 | 2023-06-09 | 华电电力科学研究院有限公司 | Online checking system and method for rotary machine vibration monitoring system |
| WO2019167171A1 (en) * | 2018-02-28 | 2019-09-06 | 日産自動車株式会社 | Abnormality detecting device and abnormality detecting method |
| JP6496061B1 (en) | 2018-03-30 | 2019-04-03 | オークマ株式会社 | Method and apparatus for diagnosing abnormality of rolling bearing |
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| JP2020137403A (en) | 2019-02-15 | 2020-08-31 | 株式会社Kelk | Thermoelectric power generator and vibration detection system |
| JP7361573B2 (en) * | 2019-11-07 | 2023-10-16 | オークマ株式会社 | Abnormality diagnosis method and abnormality diagnosis device for feed shaft device |
| JP7057955B2 (en) | 2020-09-11 | 2022-04-21 | 学校法人長崎総合科学大学 | Abnormality judgment method of wind power generation equipment, abnormality judgment system of wind power generation equipment and abnormality judgment program of wind power generation equipment |
| JP7276617B2 (en) * | 2020-10-21 | 2023-05-18 | 住友電気工業株式会社 | MOTOR MONITORING DEVICE, MOTOR MONITORING METHOD, AND COMPUTER PROGRAM |
| JP2022108652A (en) | 2021-01-13 | 2022-07-26 | 株式会社Kelk | Analysis device, analysis system, and analysis method |
Family Cites Families (3)
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|---|---|---|---|---|
| JPH10221161A (en) * | 1997-02-10 | 1998-08-21 | Nippon Densan Corp | Method and apparatus for inspecting vibration |
| JP4265982B2 (en) * | 2004-02-25 | 2009-05-20 | 三菱電機株式会社 | Equipment diagnostic equipment, refrigeration cycle equipment, refrigeration cycle monitoring system |
| JP4581860B2 (en) * | 2005-01-26 | 2010-11-17 | 日本精工株式会社 | Machine equipment abnormality diagnosis apparatus and abnormality diagnosis method |
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2008
- 2008-02-26 JP JP2008045019A patent/JP5146008B2/en active Active
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