JPS5761921A - Detector for fault of bearing - Google Patents
Detector for fault of bearingInfo
- Publication number
- JPS5761921A JPS5761921A JP13639280A JP13639280A JPS5761921A JP S5761921 A JPS5761921 A JP S5761921A JP 13639280 A JP13639280 A JP 13639280A JP 13639280 A JP13639280 A JP 13639280A JP S5761921 A JPS5761921 A JP S5761921A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- bearing
- signals
- fault
- output
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Rolling Contact Bearings (AREA)
Abstract
PURPOSE:To ensure automatic detection for bearing fault and to eliminate the detecting work, by calculating the threshold value from the output of an acceleration meter for each change of a subject bearing. CONSTITUTION:An output x(t) of a vibration acceleration meter provided to a rotor bearing is led into a digital filter part 2. Then signals m(t), s(t) which are averaged within a prescribed time plus signals h1(t), h2(t)... which are processed by plural filters having the impulse response property expressed by either one of +1, 0 and -1 are produced and delivered. Each output signal is multiplied by a prescribed coefficient respectively through a deciding circuit 3, and the total signal f(t) is calculated to obtain a signal y(t) which is averaged within a short prescribed time. Then a signal d(t) that can discriminate the presence or absence of a fault signal of bearing is delivered based on the relation between a signal y(t) and signals m(t) and s(t).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13639280A JPS5761921A (en) | 1980-09-30 | 1980-09-30 | Detector for fault of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13639280A JPS5761921A (en) | 1980-09-30 | 1980-09-30 | Detector for fault of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5761921A true JPS5761921A (en) | 1982-04-14 |
Family
ID=15174080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13639280A Pending JPS5761921A (en) | 1980-09-30 | 1980-09-30 | Detector for fault of bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5761921A (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 |
| JPH02182993A (en) * | 1988-12-29 | 1990-07-17 | Ishikawajima Harima Heavy Ind Co Ltd | Device for diagnosing trouble of paper-making machine |
| JP2003042151A (en) * | 2001-02-22 | 2003-02-13 | Nsk Ltd | Rolling bearing device and ring with sensor of the bearing device |
| CN104101498A (en) * | 2014-07-08 | 2014-10-15 | 上海工程技术大学 | Real-time fault detection method and system of processing machine tool main shaft bearing |
-
1980
- 1980-09-30 JP JP13639280A patent/JPS5761921A/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 |
| JPH02182993A (en) * | 1988-12-29 | 1990-07-17 | Ishikawajima Harima Heavy Ind Co Ltd | Device for diagnosing trouble of paper-making machine |
| JP2003042151A (en) * | 2001-02-22 | 2003-02-13 | Nsk Ltd | Rolling bearing device and ring with sensor of the bearing device |
| CN104101498A (en) * | 2014-07-08 | 2014-10-15 | 上海工程技术大学 | Real-time fault detection method and system of processing machine tool main shaft bearing |
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