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JPS6491031A - Method and apparatus for nondestructive inspection of roller bearing - Google Patents

Method and apparatus for nondestructive inspection of roller bearing

Info

Publication number
JPS6491031A
JPS6491031A JP62248002A JP24800287A JPS6491031A JP S6491031 A JPS6491031 A JP S6491031A JP 62248002 A JP62248002 A JP 62248002A JP 24800287 A JP24800287 A JP 24800287A JP S6491031 A JPS6491031 A JP S6491031A
Authority
JP
Japan
Prior art keywords
frequency
signal
roller bearing
ratio
deterioration
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.)
Granted
Application number
JP62248002A
Other languages
Japanese (ja)
Other versions
JPH0616001B2 (en
Inventor
Shigemi Masuno
Osamu Nakagawa
Atsushi Misawa
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.)
Japan Tobacco Inc
Original Assignee
Japan Tobacco Inc
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 Japan Tobacco Inc filed Critical Japan Tobacco Inc
Priority to JP62248002A priority Critical patent/JPH0616001B2/en
Publication of JPS6491031A publication Critical patent/JPS6491031A/en
Publication of JPH0616001B2 publication Critical patent/JPH0616001B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To make it possible to grasp deterioration degree quantitatively, by judging the deterioration degree from a ratio between the occurring frequency of envelop signals corresponding to the output of an acoustic emission (AE) sensor and the frequency of load applications. CONSTITUTION:The output of an AE sensor 2, which is attached to a roller bearing 1, is processed in an preamplifier 3, an HPF 4, an LPF 5, a main amplifier 6 and an envelop detector circuit 7. A pulse signal outputted from a waveform shaping circuit 8 is supplied. The time interval of the AE signal is counted in a timer counter 9. The occurring frequency of the AE signal is counted in a pulse counter. When the time interval agrees with the time interval of a load which is applied to the roller bearing periodically, deterioration of the bearing 1 is specified. A ratio between the occurring frequency of the AE signal and the frequency of load applications is computed in an information processing circuit 11. The ratio is zero at the normal time and approaches 1 as the deterioration progresses. Thus, the deterioration degree of the bearing can be grasped quantitatively.
JP62248002A 1987-10-02 1987-10-02 Non-destructive inspection method and device for rolling bearing Expired - Lifetime JPH0616001B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62248002A JPH0616001B2 (en) 1987-10-02 1987-10-02 Non-destructive inspection method and device for rolling bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62248002A JPH0616001B2 (en) 1987-10-02 1987-10-02 Non-destructive inspection method and device for rolling bearing

Publications (2)

Publication Number Publication Date
JPS6491031A true JPS6491031A (en) 1989-04-10
JPH0616001B2 JPH0616001B2 (en) 1994-03-02

Family

ID=17171730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62248002A Expired - Lifetime JPH0616001B2 (en) 1987-10-02 1987-10-02 Non-destructive inspection method and device for rolling bearing

Country Status (1)

Country Link
JP (1) JPH0616001B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05272541A (en) * 1992-03-27 1993-10-19 Koyo Seiko Co Ltd Ceramic bearing
JP2018138817A (en) * 2017-02-24 2018-09-06 Thk株式会社 State diagnosis system and state diagnosis method of rolling guide device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160109329A1 (en) * 2013-04-05 2016-04-21 Aktiebolaget Skf Method, computer program product & system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5343588A (en) * 1976-10-01 1978-04-19 Koyo Seiko Co Nonndestructive inspecting method and apparatus for objects in operation
JPS59116526A (en) * 1982-12-24 1984-07-05 Agency Of Ind Science & Technol Method for detecting abnormality of rolling bearing
JPS6031036A (en) * 1983-07-29 1985-02-16 Sumitomo Metal Ind Ltd How to diagnose rolling bearings

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5343588A (en) * 1976-10-01 1978-04-19 Koyo Seiko Co Nonndestructive inspecting method and apparatus for objects in operation
JPS59116526A (en) * 1982-12-24 1984-07-05 Agency Of Ind Science & Technol Method for detecting abnormality of rolling bearing
JPS6031036A (en) * 1983-07-29 1985-02-16 Sumitomo Metal Ind Ltd How to diagnose rolling bearings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05272541A (en) * 1992-03-27 1993-10-19 Koyo Seiko Co Ltd Ceramic bearing
JP2018138817A (en) * 2017-02-24 2018-09-06 Thk株式会社 State diagnosis system and state diagnosis method of rolling guide device

Also Published As

Publication number Publication date
JPH0616001B2 (en) 1994-03-02

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