JPS55109461A - Acceleration method of centrifugal separating machine - Google Patents
Acceleration method of centrifugal separating machineInfo
- 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
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009106887A (en) * | 2007-10-31 | 2009-05-21 | Hitachi Koki Co Ltd | Centrifuge |
-
1979
- 1979-02-16 JP JP1698779A patent/JPS55109461A/en active Granted
Cited By (2)
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 |
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