JPS5626226A - Defect detecting method of bearing - Google Patents
Defect detecting method of bearingInfo
- Publication number
- JPS5626226A JPS5626226A JP10215579A JP10215579A JPS5626226A JP S5626226 A JPS5626226 A JP S5626226A JP 10215579 A JP10215579 A JP 10215579A JP 10215579 A JP10215579 A JP 10215579A JP S5626226 A JPS5626226 A JP S5626226A
- Authority
- JP
- Japan
- Prior art keywords
- defect
- bearing
- signal
- peak value
- vibration
- 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
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Rolling Contact Bearings (AREA)
Abstract
PURPOSE: To secure an accurate detection for the defect of the bearing, by detecting the defect based on the peak value deviation of the vibration detecting signal of the bearings at the both ends of the rotor.
CONSTITUTION: The vibrations of bearings 2 and 3 which bear the both ends of rotor 1 are detected individually by pickups 4 and 5 each. And the noise components caused by the external noise and others ar eliminated via BFPs10 and 11. The peak values of the vibration detecting signals are held by peak holding circuits 10 and 11 each, and differential amplifier 12 generates the signal corresponding to the deviation of the peak value. This signal is processed through smoothing integrator 13, and integrator 13 generates the defect detecting signal only when the peak value deviation of the vibration detecting signal is generated. Accordingly, the defect of the bearing is detected in distinction from the transmission of vibration from the substance to be conveyed even with a low-speed rotation. As a result, the defect of the bearing can be detected accurately.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10215579A JPS5626226A (en) | 1979-08-13 | 1979-08-13 | Defect detecting method of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10215579A JPS5626226A (en) | 1979-08-13 | 1979-08-13 | Defect detecting method of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5626226A true JPS5626226A (en) | 1981-03-13 |
Family
ID=14319831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10215579A Pending JPS5626226A (en) | 1979-08-13 | 1979-08-13 | Defect detecting method of bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5626226A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61199505A (en) * | 1985-02-28 | 1986-09-04 | Nippon Kokan Kk <Nkk> | Device for diagnosing deterioration of bearing for rolling roll |
| JPH04113051U (en) * | 1991-03-19 | 1992-10-01 | 福井機械株式会社 | Machine failure diagnosis device |
| EP3225967A1 (en) | 2016-03-31 | 2017-10-04 | Skoda Auto a.s. | A device for error diagnosis of low-speed bearings |
| EP3531100A1 (en) | 2018-02-21 | 2019-08-28 | Skoda Auto a.s. | Device for monitoring at least one bearing and machine with at least one such device |
-
1979
- 1979-08-13 JP JP10215579A patent/JPS5626226A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61199505A (en) * | 1985-02-28 | 1986-09-04 | Nippon Kokan Kk <Nkk> | Device for diagnosing deterioration of bearing for rolling roll |
| JPH04113051U (en) * | 1991-03-19 | 1992-10-01 | 福井機械株式会社 | Machine failure diagnosis device |
| EP3225967A1 (en) | 2016-03-31 | 2017-10-04 | Skoda Auto a.s. | A device for error diagnosis of low-speed bearings |
| EP3531100A1 (en) | 2018-02-21 | 2019-08-28 | Skoda Auto a.s. | Device for monitoring at least one bearing and machine with at least one such device |
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