JPS55109461A - Acceleration method of centrifugal separating machine - Google Patents

Acceleration method of centrifugal separating machine

Info

Publication number
JPS55109461A
JPS55109461A JP1698779A JP1698779A JPS55109461A JP S55109461 A JPS55109461 A JP S55109461A JP 1698779 A JP1698779 A JP 1698779A JP 1698779 A JP1698779 A JP 1698779A JP S55109461 A JPS55109461 A JP S55109461A
Authority
JP
Japan
Prior art keywords
signal
rotor
speed
gate
level
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
JP1698779A
Other languages
Japanese (ja)
Other versions
JPS6240066B2 (en
Inventor
Toyosaku Sato
Akio Nagata
Norihisa Sagawa
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.)
Koki Holdings Co Ltd
Original Assignee
Hitachi Koki Co 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 Hitachi Koki Co Ltd filed Critical Hitachi Koki Co Ltd
Priority to JP1698779A priority Critical patent/JPS55109461A/en
Publication of JPS55109461A publication Critical patent/JPS55109461A/en
Publication of JPS6240066B2 publication Critical patent/JPS6240066B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Centrifugal Separators (AREA)

Abstract

PURPOSE: To prevent the damaging of apparatus and secure safety by detecting the unbalance of a rotor when the rotating speed of the rotor is at the primary dangerous rotating speed in a low speed region and reaccelerating the same while decelerating it down to the specified rotating speed.
CONSTITUTION: The positive pulse of the start signal (a) goes through an OR gate 7 and sets flip-flops (FF) 8, 9, then the outputs of the FF8, 9 become both 1 level and the signal (e) of 1 level is outputted from an AND gate 10. A relay is operated by this signal (e) to drive the motor and acclerate the rotor. When the rotor is accelerated and reaches the primary dangerous speed, the output signal (b) of the 1st speed detector becomes of positive level to reset the FF8 via inverter 11, OR gate 12 and inverter 13 and make the signal (e) zero, thereby stopping the motor and decelerating the rotor. The required number of revolutions is maintained by the signals (c), (f) of the 2nd and third speed detectors. The signal (d) indicates stop signal. In this way, the damaging of the apparatus may be prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP1698779A 1979-02-16 1979-02-16 Acceleration method of centrifugal separating machine Granted JPS55109461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1698779A JPS55109461A (en) 1979-02-16 1979-02-16 Acceleration method of centrifugal separating machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1698779A JPS55109461A (en) 1979-02-16 1979-02-16 Acceleration method of centrifugal separating machine

Publications (2)

Publication Number Publication Date
JPS55109461A true JPS55109461A (en) 1980-08-22
JPS6240066B2 JPS6240066B2 (en) 1987-08-26

Family

ID=11931378

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1698779A Granted JPS55109461A (en) 1979-02-16 1979-02-16 Acceleration method of centrifugal separating machine

Country Status (1)

Country Link
JP (1) JPS55109461A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009106887A (en) * 2007-10-31 2009-05-21 Hitachi Koki Co Ltd Centrifuge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009106887A (en) * 2007-10-31 2009-05-21 Hitachi Koki Co Ltd Centrifuge
US8262551B2 (en) 2007-10-31 2012-09-11 Hitachi Koki Co., Ltd. Centrifuge having displacement sensor

Also Published As

Publication number Publication date
JPS6240066B2 (en) 1987-08-26

Similar Documents

Publication Publication Date Title
KR840004324A (en) Motor position control
US3462670A (en) Centrifuge and means to prevent overdriving its rotor
GB1480573A (en) Centrifuge apparatus
JPS55109461A (en) Acceleration method of centrifugal separating machine
EP0232324A1 (en) Overspeed protection signal override system for a centrifuge apparatus
JPS54162361A (en) Controller for elevator
JPS56108551A (en) Rotary drive apparatus
ES2048084A2 (en) Speed sensor failure detection method and apparatus for an overspeed protection system
JPS56133617A (en) Vibration monitoring method of rotary machine
JPS5651668A (en) Detecting method for abnormal rotational speed of rotator
JPS5512215A (en) Drive control process and system for turbine dynamo
JPH0440747Y2 (en)
JPS558383A (en) Slip detection method in continuous casting facility
JPS56155665A (en) Control circuit for break of centrifuge
JPS5753262A (en) Monitor for operation of centrifuge
JPS56153959A (en) Induction machine
JPS54149812A (en) Drive controller or high-speed rotary machine
JPS5446322A (en) Brake controller for water-wheel generator
JPS54137531A (en) Operation mode shifting method of pump water wheel
JPS539584A (en) Predicting apparatus for abnormality of ball-and-rooler bearing
JPS51131370A (en) Revolving spindle surveillance system
JPS57191562A (en) Detector for stop of motor
SU366369A1 (en) ADJUSTABLE DRIVE OF PRODUCT ROTATION FOR BALANCING MACHINES
JPS5784761A (en) Centrifugal separator
JPS6458360A (en) Detecting system for rotator of centrifugal separator