JPS54147450A - Supervisory device for anomaly of rotary shaft - Google Patents

Supervisory device for anomaly of rotary shaft

Info

Publication number
JPS54147450A
JPS54147450A JP5619078A JP5619078A JPS54147450A JP S54147450 A JPS54147450 A JP S54147450A JP 5619078 A JP5619078 A JP 5619078A JP 5619078 A JP5619078 A JP 5619078A JP S54147450 A JPS54147450 A JP S54147450A
Authority
JP
Japan
Prior art keywords
shaft
abnormality
disc
rotary shaft
torsional oscillation
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
JP5619078A
Other languages
Japanese (ja)
Other versions
JPS6246817B2 (en
Inventor
Yoshihisa Kitora
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5619078A priority Critical patent/JPS54147450A/en
Publication of JPS54147450A publication Critical patent/JPS54147450A/en
Publication of JPS6246817B2 publication Critical patent/JPS6246817B2/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

PURPOSE: To detect an abnormality of the rotary shaft without stopping the shaft by deciding the magnitude of torsional oscillation dampling rate obtained by measuring an unevenness of the rotation.
CONSTITUTION: A gear-shaped disc 5 is provided to the end of rotary shat, an electromagnetic pickup 6 for detecting the rotation pulse is placed beside the disc. The uneven-rotation detecting unit consists of the disc 5, pickup 6 and unevenrotation meter 8. A damping oscillation wave form from the filter 9 which takes only a specific frequency component of the output signal of the meter 8 is computed by the arithmetic unit 10 to obtain the torsional oscillation damping rate. The stored value, which is obtained such that a torsional oscillation damping rate of the normal state of shaft 4 is multiplied by certain constant, and an output of the arithmetic unit 10 are compared with each other by the comparator 11 to decide an abnormality of the shaft 4, an alarm is delivered if the shaft is unusual. By this way, an abnormality of the rotary shaft can be detected as the shaft is turned.
COPYRIGHT: (C)1979,JPO&Japio
JP5619078A 1978-05-11 1978-05-11 Supervisory device for anomaly of rotary shaft Granted JPS54147450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5619078A JPS54147450A (en) 1978-05-11 1978-05-11 Supervisory device for anomaly of rotary shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5619078A JPS54147450A (en) 1978-05-11 1978-05-11 Supervisory device for anomaly of rotary shaft

Publications (2)

Publication Number Publication Date
JPS54147450A true JPS54147450A (en) 1979-11-17
JPS6246817B2 JPS6246817B2 (en) 1987-10-05

Family

ID=13020182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5619078A Granted JPS54147450A (en) 1978-05-11 1978-05-11 Supervisory device for anomaly of rotary shaft

Country Status (1)

Country Link
JP (1) JPS54147450A (en)

Also Published As

Publication number Publication date
JPS6246817B2 (en) 1987-10-05

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