JPS5598353A - Abnormal condition detecting method of sliding member in rotating machine - Google Patents

Abnormal condition detecting method of sliding member in rotating machine

Info

Publication number
JPS5598353A
JPS5598353A JP489179A JP489179A JPS5598353A JP S5598353 A JPS5598353 A JP S5598353A JP 489179 A JP489179 A JP 489179A JP 489179 A JP489179 A JP 489179A JP S5598353 A JPS5598353 A JP S5598353A
Authority
JP
Japan
Prior art keywords
abnormal condition
sliding member
detector
balance
acoustic signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP489179A
Other languages
Japanese (ja)
Inventor
Sadahiro Hirose
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP489179A priority Critical patent/JPS5598353A/en
Publication of JPS5598353A publication Critical patent/JPS5598353A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

PURPOSE: To detect abnormal condition rapidly before the abnormality progresses in a sliding member by attaching AE detector to the fixed sliding member and detecting an acoustic signal generated by the sliding with AE detector.
CONSTITUTION: A balance sheet 2 is secured to a pump casing 1 and to an opposing face of the balance sheet 2, a balance disc 3 is secured to an axis 4. The balance sheet 2 and the balance disc 3 are respectively arranged so as to slide the respective end surfaces 2a and 3a through a thin water film. AE detector 5 is mounted on the balance sheet 2 and when sliding together with the balance disc 3, acoustic signal generated is detected. The acoustic signal detected by AE detector 5 is processed and the presence of the abnormal condition is judged.
COPYRIGHT: (C)1980,JPO&Japio
JP489179A 1979-01-22 1979-01-22 Abnormal condition detecting method of sliding member in rotating machine Pending JPS5598353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP489179A JPS5598353A (en) 1979-01-22 1979-01-22 Abnormal condition detecting method of sliding member in rotating machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP489179A JPS5598353A (en) 1979-01-22 1979-01-22 Abnormal condition detecting method of sliding member in rotating machine

Publications (1)

Publication Number Publication Date
JPS5598353A true JPS5598353A (en) 1980-07-26

Family

ID=11596291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP489179A Pending JPS5598353A (en) 1979-01-22 1979-01-22 Abnormal condition detecting method of sliding member in rotating machine

Country Status (1)

Country Link
JP (1) JPS5598353A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5790133A (en) * 1980-11-26 1982-06-04 Hitachi Ltd Method and apparatus for diagnosis of damage in bearing
JPS5790416A (en) * 1980-11-26 1982-06-05 Nachi Fujikoshi Corp Monobloc type plural rows cone roller bearing and its assembly procedure
JPS58150859A (en) * 1982-03-03 1983-09-07 Hitachi Ltd Method and apparatus for diagnosing crack of rotor
JPS60172056U (en) * 1984-04-24 1985-11-14 イーグル工業株式会社 Mechanical seal with trouble detection device
JPS6170766U (en) * 1984-10-16 1986-05-14
DE3707524A1 (en) * 1986-03-28 1987-10-01 Agency Ind Science Techn DEVICE FOR EVALUATING THE SLIDING CONDITION OF A MECHANICAL SEAL
EP0288979A2 (en) * 1987-04-28 1988-11-02 Ebara Corporation Method and apparatus for observing operating state of mechanical seal
JP2018202706A (en) * 2017-06-01 2018-12-27 ファナック株式会社 Abnormality detection device
WO2021033382A1 (en) * 2019-08-21 2021-02-25 日立Ｇｅニュークリア・エナジー株式会社 State monitoring system and method

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5790416A (en) * 1980-11-26 1982-06-05 Nachi Fujikoshi Corp Monobloc type plural rows cone roller bearing and its assembly procedure
JPS5790133A (en) * 1980-11-26 1982-06-04 Hitachi Ltd Method and apparatus for diagnosis of damage in bearing
JPH0152687B2 (en) * 1980-11-26 1989-11-09 Hitachi Ltd
JPS58150859A (en) * 1982-03-03 1983-09-07 Hitachi Ltd Method and apparatus for diagnosing crack of rotor
JPH0315698B2 (en) * 1982-03-03 1991-03-01 Hitachi Ltd
JPS6319663Y2 (en) * 1984-04-24 1988-06-01
JPS60172056U (en) * 1984-04-24 1985-11-14 イーグル工業株式会社 Mechanical seal with trouble detection device
JPS6170766U (en) * 1984-10-16 1986-05-14
US4748850A (en) * 1986-03-28 1988-06-07 Agency Of Industrial Science And Technology Apparatus for evaluating the slippage of a mechanical seal
JPS62226033A (en) * 1986-03-28 1987-10-05 Agency Of Ind Science & Technol Evaluating device for sliding state of mechanical seal
DE3707524A1 (en) * 1986-03-28 1987-10-01 Agency Ind Science Techn DEVICE FOR EVALUATING THE SLIDING CONDITION OF A MECHANICAL SEAL
JPH0460543B2 (en) * 1986-03-28 1992-09-28 Kogyo Gijutsuin
EP0288979A2 (en) * 1987-04-28 1988-11-02 Ebara Corporation Method and apparatus for observing operating state of mechanical seal
EP0288979A3 (en) * 1987-04-28 1989-07-26 Ebara Corporation Method and apparatus for observing operating state of mechanical seal
US5041989A (en) * 1987-04-28 1991-08-20 Ebara Corporation Method and apparatus for observing operating state of mechanical seal
JP2018202706A (en) * 2017-06-01 2018-12-27 ファナック株式会社 Abnormality detection device
US10632659B2 (en) 2017-06-01 2020-04-28 Fanuc Corporation Abnormality detection device
WO2021033382A1 (en) * 2019-08-21 2021-02-25 日立Ｇｅニュークリア・エナジー株式会社 State monitoring system and method
JP2021032287A (en) * 2019-08-21 2021-03-01 日立Ｇｅニュークリア・エナジー株式会社 State monitoring system and method

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