JPS55151237A - Detector for abnormality of bearing mechanism - Google Patents
Detector for abnormality of bearing mechanismInfo
- Publication number
- JPS55151237A JPS55151237A JP5982779A JP5982779A JPS55151237A JP S55151237 A JPS55151237 A JP S55151237A JP 5982779 A JP5982779 A JP 5982779A JP 5982779 A JP5982779 A JP 5982779A JP S55151237 A JPS55151237 A JP S55151237A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- flaw
- size
- detected
- impulse
- 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
Links
Abstract
PURPOSE: To detect the existence of a flaw, its size, etc., accurately by detecting the number of impulse responses by putting it to practical use that the detection signal of the acoustic sensor of a piezoelectric vibrator, etc., is the impulse response of vibration acceleration by the flaw.
CONSTITUTION: A piezoelectric signal detected by acoustic sensor 3 is input via amplifier 4 to band-pass filter 5, which removes random electric noises. Output SS of this detected signal, therefore, becomes a signal of a nearly-constant frequency and its envelope forms the impulse response waveform of an impulse wave generated due to a flaw, etc., of axis 1. Then, this detected signal is supplied to discriminator 6 to generate signal P every time it exceeds threshold level TL. Counter 8 counts pulse signal P for a predetermined unit time and the count value is displayed. Since the number of waves of this pulse signal P changes corresponding to the size of the flaw, the size of the flaw can accurately and easily be detedted from this number of waves.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5982779A JPS55151237A (en) | 1979-05-16 | 1979-05-16 | Detector for abnormality of bearing mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5982779A JPS55151237A (en) | 1979-05-16 | 1979-05-16 | Detector for abnormality of bearing mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55151237A true JPS55151237A (en) | 1980-11-25 |
JPS6110689B2 JPS6110689B2 (en) | 1986-03-31 |
Family
ID=13124442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5982779A Granted JPS55151237A (en) | 1979-05-16 | 1979-05-16 | Detector for abnormality of bearing mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55151237A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4488660A (en) * | 1981-10-12 | 1984-12-18 | Tiger Vacuum Bottle Industrial Company, Limited | Vacuum bottle |
JPS61198057A (en) * | 1985-02-28 | 1986-09-02 | Kawasaki Steel Corp | Method and device for diagnosing damage of sliding bearing for rolling mill |
JPS61200467A (en) * | 1985-03-01 | 1986-09-05 | Kawasaki Steel Corp | Apparatus for diagnosing damage of slide bearing |
JPS63304129A (en) * | 1987-06-03 | 1988-12-12 | Koyo Seiko Co Ltd | Detecting device for abnormality of bearing |
KR100724100B1 (en) | 2004-08-30 | 2007-06-04 | 한국표준과학연구원 | Super small-sized accoustic sensor with amplifier |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0590661A (en) * | 1991-04-26 | 1993-04-09 | Fanuc Ltd | Abnormality detection of blower bearing for gas laser apparatus |
CN102928225B (en) * | 2012-10-31 | 2015-01-07 | 西安交通大学 | Self-adaptive resonance demodulation method for fault diagnosis of rolling bearing |
-
1979
- 1979-05-16 JP JP5982779A patent/JPS55151237A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4488660A (en) * | 1981-10-12 | 1984-12-18 | Tiger Vacuum Bottle Industrial Company, Limited | Vacuum bottle |
JPS61198057A (en) * | 1985-02-28 | 1986-09-02 | Kawasaki Steel Corp | Method and device for diagnosing damage of sliding bearing for rolling mill |
JPS61200467A (en) * | 1985-03-01 | 1986-09-05 | Kawasaki Steel Corp | Apparatus for diagnosing damage of slide bearing |
JPS63304129A (en) * | 1987-06-03 | 1988-12-12 | Koyo Seiko Co Ltd | Detecting device for abnormality of bearing |
KR100724100B1 (en) | 2004-08-30 | 2007-06-04 | 한국표준과학연구원 | Super small-sized accoustic sensor with amplifier |
Also Published As
Publication number | Publication date |
---|---|
JPS6110689B2 (en) | 1986-03-31 |
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