JPS6088121U - Rolling bearing abnormality detector - Google Patents

Rolling bearing abnormality detector

Info

Publication number
JPS6088121U
JPS6088121U JP18015583U JP18015583U JPS6088121U JP S6088121 U JPS6088121 U JP S6088121U JP 18015583 U JP18015583 U JP 18015583U JP 18015583 U JP18015583 U JP 18015583U JP S6088121 U JPS6088121 U JP S6088121U
Authority
JP
Japan
Prior art keywords
output
rolling bearing
signal
operates according
circuit
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
Application number
JP18015583U
Other languages
Japanese (ja)
Other versions
JPH0249384Y2 (en
Inventor
万朶 野田
Original Assignee
日本精工株式会社
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 日本精工株式会社 filed Critical 日本精工株式会社
Priority to JP18015583U priority Critical patent/JPS6088121U/en
Publication of JPS6088121U publication Critical patent/JPS6088121U/en
Application granted granted Critical
Publication of JPH0249384Y2 publication Critical patent/JPH0249384Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は正常なころがり軸受の振動波形図、第２図は常
異のあるころがり軸受の振動波形図、第３図はこの考案
の一実施例を示す検出器のブロック図、第４図はシュミ
ットトリガ−回路への入力波形図、第５図はシュミット
トリガ−回路の出力波形図、第６図は単安定マルチバイ
ブレータの出力波形図である。 符号の説明、１は振動センサ、２は増幅器、３は帯域ろ
波器、４は実効値回路、５は直流増幅器、６はシュミッ
トトリガ−回路、７は単安定マルチバイブレータ、８は
警報回路。Figure 1 is a vibration waveform diagram of a normal rolling bearing, Figure 2 is a vibration waveform diagram of an abnormal rolling bearing, Figure 3 is a block diagram of a detector showing an embodiment of this invention, and Figure 4 is a diagram of a vibration waveform of a rolling bearing with an abnormality. FIG. 5 is a diagram of the input waveform to the Schmitt trigger circuit, FIG. 5 is a diagram of the output waveform of the Schmitt trigger circuit, and FIG. 6 is a diagram of the output waveform of the monostable multivibrator. Explanation of symbols: 1 is a vibration sensor, 2 is an amplifier, 3 is a bandpass filter, 4 is an effective value circuit, 5 is a DC amplifier, 6 is a Schmitt trigger circuit, 7 is a monostable multivibrator, and 8 is an alarm circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ころがり軸受における機械的振動を振動センサによって
電気信号に変換検出し、この検出された信号をもとにこ
ろがり軸受の異常を検出する装置において、振動センサ
からの微小信号を増幅するための増幅器と、不要な信号
を除去するための帯域ろ波器と、帯域ろ波器の出力から
の実効値を求める実効値回路とミ実効値検出回路の出力
をに倍に増幅する直流増幅器と、Ｋ倍に増幅された実効
値と帯域Ｐ波器からの出力とを比較し帯域Ｐ波器の出力
かに倍の実効値を超えた場合に超えている時間に等して
時間幅をもつパルス信号を出力するシュミットトリガ回
路と、前記パルス信号により作動する単安定マルチバイ
ブレータと、この単安定マルチバイブレータからの出力
信号によって作動する警報回路とを備えたころがり軸受
の異常検出器。A device for converting and detecting mechanical vibrations in a rolling bearing into an electrical signal using a vibration sensor and detecting an abnormality in the rolling bearing based on the detected signal, an amplifier for amplifying a minute signal from the vibration sensor; A bandpass filter for removing unnecessary signals, an rms value circuit for determining the rms value from the output of the bandpass filter, a DC amplifier for amplifying the output of the mi-rms value detection circuit by a factor of K times Compare the amplified effective value and the output from the band P-wave device, and if the output of the band P-wave device exceeds twice the effective value, output a pulse signal with a time width equal to the time exceeded. An abnormality detector for a rolling bearing, comprising a Schmitt trigger circuit that operates according to the pulse signal, a monostable multivibrator that operates according to the pulse signal, and an alarm circuit that operates according to the output signal from the monostable multivibrator.
JP18015583U 1983-11-24 1983-11-24 Rolling bearing abnormality detector Granted JPS6088121U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18015583U JPS6088121U (en) 1983-11-24 1983-11-24 Rolling bearing abnormality detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18015583U JPS6088121U (en) 1983-11-24 1983-11-24 Rolling bearing abnormality detector

Publications (2)

Publication Number Publication Date
JPS6088121U true JPS6088121U (en) 1985-06-17
JPH0249384Y2 JPH0249384Y2 (en) 1990-12-26

Family

ID=30390698

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18015583U Granted JPS6088121U (en) 1983-11-24 1983-11-24 Rolling bearing abnormality detector

Country Status (1)

Country Link
JP (1) JPS6088121U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11326033A (en) * 1998-05-07 1999-11-26 Rion Co Ltd Vibration meter
US7587299B2 (en) 2000-11-06 2009-09-08 Nsk Ltd. Anomaly diagnosis apparatus and method of machine installation
JP2018091033A (en) * 2016-12-02 2018-06-14 大成建設株式会社 Deterioration diagnosis method for shield machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372951U (en) * 1976-11-19 1978-06-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372951U (en) * 1976-11-19 1978-06-19

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11326033A (en) * 1998-05-07 1999-11-26 Rion Co Ltd Vibration meter
US7587299B2 (en) 2000-11-06 2009-09-08 Nsk Ltd. Anomaly diagnosis apparatus and method of machine installation
JP2018091033A (en) * 2016-12-02 2018-06-14 大成建設株式会社 Deterioration diagnosis method for shield machine

Also Published As

Publication number Publication date
JPH0249384Y2 (en) 1990-12-26

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