JPS55124064A - Roll with damage detector - Google Patents
Roll with damage detectorInfo
- Publication number
- JPS55124064A JPS55124064A JP3250079A JP3250079A JPS55124064A JP S55124064 A JPS55124064 A JP S55124064A JP 3250079 A JP3250079 A JP 3250079A JP 3250079 A JP3250079 A JP 3250079A JP S55124064 A JPS55124064 A JP S55124064A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- signals
- damages
- detectors
- increase
- 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)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
PURPOSE: To automatically detect damages, etc. of the roll under working with high accuracy by receiving the detection transmission signals of the acoustic emission (AE) detectors provided to the roll and evaluating the rate of increase of the AE signals from the frequency component outputs of the specified range.
CONSTITUTION: AE detectors 3... and radio transmitters 5... are provided in the recesses 4 of the shaft 1 of a roll using ceramics or hard alloy 2, and the AE detection signals that the detectors 3... detect are transmitted from the transmitters 5... and are received in a radio receiver 6. The frequency components of the range of 50W500Hz out of these received signals are discriminated by a discriminator 8 and if these frequency components exceed the set reference value of a comparator 9, the rapid increase in the increase rate of the AE signals by the damages of the roll is decided and the occurrence of the damages in the roll under working is automatically detected with high accuracy and is alarmed by an alarm 10.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3250079A JPS55124064A (en) | 1979-03-20 | 1979-03-20 | Roll with damage detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3250079A JPS55124064A (en) | 1979-03-20 | 1979-03-20 | Roll with damage detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55124064A true JPS55124064A (en) | 1980-09-24 |
Family
ID=12360704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3250079A Pending JPS55124064A (en) | 1979-03-20 | 1979-03-20 | Roll with damage detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55124064A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4478082A (en) * | 1981-08-26 | 1984-10-23 | Hitachi, Ltd. | Method and apparatus for detecting rubbing in a rotary machine |
| WO2007116884A1 (en) * | 2006-04-04 | 2007-10-18 | Tokyo Rope Manufacturing Co., Ltd. | Remote monitoring system for wire rope |
| WO2019124237A1 (en) * | 2017-12-21 | 2019-06-27 | 日立金属株式会社 | Online crack detection device for roll for rolling, roll for rolling, and online crack detection method for roll for rolling |
-
1979
- 1979-03-20 JP JP3250079A patent/JPS55124064A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4478082A (en) * | 1981-08-26 | 1984-10-23 | Hitachi, Ltd. | Method and apparatus for detecting rubbing in a rotary machine |
| WO2007116884A1 (en) * | 2006-04-04 | 2007-10-18 | Tokyo Rope Manufacturing Co., Ltd. | Remote monitoring system for wire rope |
| JP5044545B2 (en) * | 2006-04-04 | 2012-10-10 | 東京製綱株式会社 | Wire rope remote monitoring system |
| WO2019124237A1 (en) * | 2017-12-21 | 2019-06-27 | 日立金属株式会社 | Online crack detection device for roll for rolling, roll for rolling, and online crack detection method for roll for rolling |
| KR20200081473A (en) * | 2017-12-21 | 2020-07-07 | 히타치 긴조쿠 가부시키가이샤 | Rolling roll online crack detection device, rolling roll, and rolling roll online crack detection method |
| CN111479640A (en) * | 2017-12-21 | 2020-07-31 | 日立金属株式会社 | On-line crack detection device for rolling roller, rolling roller and on-line crack detection method for rolling roller |
| JPWO2019124237A1 (en) * | 2017-12-21 | 2020-11-26 | 日立金属株式会社 | Online crack detection device for rolling rolls, rolling rolls, and online crack detection methods for rolling rolls |
| EP3730228A4 (en) * | 2017-12-21 | 2021-09-22 | Hitachi Metals, Ltd. | Online crack detection device for roll for rolling, roll for rolling, and online crack detection method for roll for rolling |
| US11340196B2 (en) | 2017-12-21 | 2022-05-24 | Hitachi Metals, Ltd. | Online crack detection device for rolling roll, rolling roll, and online crack detection method for rolling roll |
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