JPS55124064A - Roll with damage detector - Google Patents

Roll with damage detector

Info

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
Application number
JP3250079A
Other languages
Japanese (ja)
Inventor
Takeshi Asai
Takaharu Yamamoto
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP3250079A priority Critical patent/JPS55124064A/en
Publication of JPS55124064A publication Critical patent/JPS55124064A/en
Pending 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)

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
JP3250079A 1979-03-20 1979-03-20 Roll with damage detector Pending JPS55124064A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (9)

* Cited by examiner, † Cited by third party
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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