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
Grant status
Application
Patent type
Prior art keywords
signal
speed
rotor
level
gate
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
JP1698779A
Other versions
JPS6240066B2 (en )
Inventor
Akio Nagata
Norihisa Sagawa
Toyosaku Sato
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

Links

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 Expired JPS6240066B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1698779A JPS6240066B2 (en) 1979-02-16 1979-02-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1698779A JPS6240066B2 (en) 1979-02-16 1979-02-16

Publications (2)

Publication Number Publication Date
JPS55109461A true 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 Expired JPS6240066B2 (en) 1979-02-16 1979-02-16

Country Status (1)

Country Link
JP (1) JPS6240066B2 (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 Type
JP1432055C (en) grant
JPS6240066B2 (en) 1987-08-26 grant

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