KR890000896A - 베어링의 이상검출장치(異常檢出裝置) - Google Patents

베어링의 이상검출장치(異常檢出裝置) Download PDF

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Publication number
KR890000896A
KR890000896A KR1019880006663A KR880006663A KR890000896A KR 890000896 A KR890000896 A KR 890000896A KR 1019880006663 A KR1019880006663 A KR 1019880006663A KR 880006663 A KR880006663 A KR 880006663A KR 890000896 A KR890000896 A KR 890000896A
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South Korea
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signal
bearing
acoustic radiation
output
khz
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KR1019880006663A
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KR970000636B1 (ko
Inventor
시게도 니시모도
요시기 후지모도
노리아끼 이노우에
슌지 하라다
Original Assignee
쓰보이 우즈히꼬
고오요오 세이꼬오 가부시기가이샤
야기 야스히로
가와사끼 세이데쓰 가부시기가이샤
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Priority claimed from JP62140484A external-priority patent/JPH065196B2/ja
Priority claimed from JP62140481A external-priority patent/JPH065195B2/ja
Priority claimed from JP62140482A external-priority patent/JPS63304129A/ja
Priority claimed from JP62140485A external-priority patent/JPH0625708B2/ja
Priority claimed from JP62140486A external-priority patent/JPH0625709B2/ja
Application filed by 쓰보이 우즈히꼬, 고오요오 세이꼬오 가부시기가이샤, 야기 야스히로, 가와사끼 세이데쓰 가부시기가이샤 filed Critical 쓰보이 우즈히꼬
Publication of KR890000896A publication Critical patent/KR890000896A/ko
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Publication of KR970000636B1 publication Critical patent/KR970000636B1/ko

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/04—Bearings
    • G01M13/045—Acoustic or vibration analysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/07—Adaptation of roll neck bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/008—Monitoring or detecting vibration, chatter or chatter marks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/26—Scanned objects
    • G01N2291/269—Various geometry objects
    • G01N2291/2696—Wheels, Gears, Bearings

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Biochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

내용 없음

Description

베어링의 이상검출장치(異常檢出裝置)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 제1실시예에 따른 베어링 이상 검출 장치에 대한 블록도
제2도는 음향 방사신호에 대한 파형도
제3도는음향 방사신호에 대한 출력 스펙트럼을 도시한 그래프.

Claims (6)

  1. 베어링으로부터 방사되는 음향 방사신호를 검출하여 음향 방사신호의 출력을 표시하는 신호를 발출하는 음향 방사센서와, 상기 음향 방사센서로부터 수신한 신호들중 100㎑내지 500㎑ 대역의 신호만을 통과시키는 대역통과필터와, 대역통과필터에 의해 추출된 100㎑ 내지 500㎑ 대역의 신호들 각각과 소정의 드레시호울드 값을 비교하여 대역통과필터로부터 출력된 신호가 드레시호울드 값을 초과하는 것을 나타내는 사건신호를 방출하를 비교기등으로 구성되는 것을 특징으로 하는 베어링의 이상검출장치.
  2. 제1항에 있어서, 대역통과필터는 음향 방사센서로부터 수신한 신호들중 200㎑ 내지 500㎑ 대역의 신호를 통과시키는 것을 특징으로 하는 베어링의 이상검출장치.
  3. 제1항에 있어서, 비교기로부터 출력된 사건신호를 수신하여 사고신호가 발생하는 주기를 계산하는 주기 계산장치와, 상기 주기계산장치에 의해 계산된 각각의 주기에 대한 사건신호의 발생수를 합산하는 합산장치와, 상기 합산장치에 의해 합산된 사건 발생수가 소정의 드레시 호울드값을 초과하는지의 여부에 따라 베어링의 이상을 판단하는 판단장치등을 추가적으로 포함하는 것을 특징으로 하는 베어링의 이상검출장치.
  4. 보울앤드로울러 베어링으로부터의 음향 방사 출력을 표시하는 음향 방사신호와 소정의 드레시호울드값을 비교하여 음향 방사출력이 소정의 드레시호울드값을 초과하면 베어링의 이상을 나타내는 에더신호를 발출하는 비교기와, 압연신호를 근거로하여 금속삽입시와 금속배출시의 특정시간동안 비료기로부터 출력된 신호를 무효화하는 논리회로등으로 구성되는 것을 특징으로 하는 압연기용 보울앤드로울러 베어링의 이상검출장치.
  5. 베어링으로부터 방사되는 음향 방사신호를 검출하는 음향 방사센서로부터 입력된 신호들중 100㎑ 내지 500㎑ 대역의 신호만을 대역통과필터를 이용하여 추출하는 단계과, 대역통과필터에 의해 추출되어 출력된 신호들을 비교기(26)를 이용하여 각각 소정의 드레시호울드값과 비교하는 단계와, 금속삽입신호의 수신후 일정기간과 금속배출신호의 수신전 일정기간을 제외한 압연기간중에 대역통과필터의 출력신호가 드레시호울드값을 초과할 때 발생되는 사건신호를 기억소자에 기억시키는 단계와, 다수의 메어링 각각에 대하여 상기 추출과 비료 및 기억단계를 특정횟수만큼 반복하는 단계와, 최종적으로 기억소자에 기억된 사건발생수에 의거하여 베어링의 이상을 검출하는 단계등으로 구성되는 것을 특징으로 하는 압연기용 보울앤드로울러베어링의 이상검출방법.
  6. 베어링으로부터 방사된 음향 방사신호를 검출하는 음향 방사센서와, 음향 방사센서의 출력신호중 100㎑ 내지 500㎑ 대역의 신호만을 추출하는 대역통과필터와, 대역통과필터로부터 출력된 신호들 각각을 드레시호울드값과 비교하고 비교결과에 의거하여 베어링의 이상을 검출하는 비교기 등으로 구성된 장치에 의해 실행되고, 대역통과필터로부터 출력된 신호가 드레시호울드값을 초과하는 경우에 발생되는 사건신호의 주기를 주기계산장치를 이용하여 계산하는 단계와, 상기 단계에서 계산된 각각의 주기당 사건 발생수를 합산하는 단계와, 각각의 주기에 대한 사건 발생수의 분포를 대체로 표시하는 직선의 기울기가 거의 0이 되도록 드레시호울드값을 변이시키는 단계등으로 구성되는 것을 특징으로 하는 베어링의 이상검출방법.
    ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880006663A 1987-06-03 1988-06-03 베어링의 이상검출장치 KR970000636B1 (ko)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP62140484A JPH065196B2 (ja) 1987-06-03 1987-06-03 圧延機用転がり軸受の異常検出装置
JP62140481A JPH065195B2 (ja) 1987-06-03 1987-06-03 軸受の異常検出装置
JP62140482A JPS63304129A (ja) 1987-06-03 1987-06-03 軸受の異常検出装置
JP87-140481 1987-06-03
JP62140485A JPH0625708B2 (ja) 1987-06-03 1987-06-03 圧延機用転がり軸受の異常検出方法
JP87-140482 1987-06-03
JP87-140486 1987-06-03
JP62140486A JPH0625709B2 (ja) 1987-06-03 1987-06-03 軸受の異常検出方法
JP87-140484 1987-06-03
JP87-140485 1987-06-03

Publications (2)

Publication Number Publication Date
KR890000896A true KR890000896A (ko) 1989-03-17
KR970000636B1 KR970000636B1 (ko) 1997-01-16

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KR1019880006663A KR970000636B1 (ko) 1987-06-03 1988-06-03 베어링의 이상검출장치

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US (1) US4884449A (ko)
EP (1) EP0297729B1 (ko)
KR (1) KR970000636B1 (ko)
AU (1) AU598381B2 (ko)
CA (1) CA1297187C (ko)
DE (1) DE3875398T2 (ko)

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AU598381B2 (en) 1990-06-21
EP0297729B1 (en) 1992-10-21
CA1297187C (en) 1992-03-10
AU1736288A (en) 1988-12-08
KR970000636B1 (ko) 1997-01-16
EP0297729A3 (en) 1989-11-23
EP0297729A2 (en) 1989-01-04
DE3875398D1 (de) 1992-11-26
DE3875398T2 (de) 1993-04-08
US4884449A (en) 1989-12-05

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