EP1392446A1 - Zentrifugalseparator - Google Patents
ZentrifugalseparatorInfo
- Publication number
- EP1392446A1 EP1392446A1 EP02745310A EP02745310A EP1392446A1 EP 1392446 A1 EP1392446 A1 EP 1392446A1 EP 02745310 A EP02745310 A EP 02745310A EP 02745310 A EP02745310 A EP 02745310A EP 1392446 A1 EP1392446 A1 EP 1392446A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing
- spindle
- motor
- point
- frame
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/12—Suspending rotary bowls ; Bearings; Packings for bearings
Definitions
- the invention relates to a centrifugal separator with a centrifuge frame, a rotatable, vertically arranged spindle with a drum mounted thereon and with a motor, the rotor axis of which is arranged vertically, the spindle being rotatable in a bearing pot and being spatially pivotable about an articulation point relative to the centrifuge frame.
- a generic centrifugal separator is known from DE 31 25 832.
- the center of gravity of the oscillating drive components coincides with the articulation point, which lies in the area of the single bearing.
- the rotating unit consisting of spindle and drum is rotatably supported in a bearing pot via roller bearings.
- the bearing pot including the rotating unit is suspended in the centrifuge frame.
- slotted bushings or the like are proposed which permit an angular deviation of the axis of rotation from the vertical.
- the belt is a wearing part that leads to increased maintenance. Slip in the belt drive leads to losses in the drive power. To the extent that the frictional heat generated by slippage can no longer be released from the frame to the environment, the frame heats up increasingly.
- the known separator with belt drive is therefore not desirable in many environments where there is a risk of explosion.
- the drive power that can be transmitted by the belt drive is also limited.
- centrifugal separator is known from DE 43 14 440 Cl, in which the drive spindle, the drum and the rotor of the motor are rigidly connected to one another and form a rotating system which is non-resiliently mounted in a bearing bridge.
- the bearing bracket and the stator of the motor are elastically connected to the centrifuge frame.
- the rotating system oscillates around an articulation point during operation of the centrifuge. Due to the mass forces and bearing loads to be controlled, the known design is not suitable for heavy engines with high drive power.
- centrifugal separator which can be used in potentially explosive environments and which can be used with standard motors with high drive power.
- this object is achieved in that the motor is rigidly attached with its housing to the centrifuge frame, the rotor axis of the motor being essentially aligned with the longitudinal axis of the drive spindle when the centrifugal separator is at rest - that the rotor the motor is connected to the spindle at a coupling point via a flexible coupling element, and that the spindle is mounted in the bearing cup at at least two spaced-apart bearing points by means of roller bearings and - that the bearing cup is connected to the centrifuge frame via elastic bearing elements.
- the advantage of this is that the motor is decoupled from the gyroscopic movement of the spindle and drum.
- the flexible coupling element provided between the motor and spindle can have an angular offset between the axes as well compensate for a small radial offset so that there is no strong bending load on the motor shaft and the rotor bearings of the motor. This enables the inexpensive use of standard motors. Due to the fixed mounting of the motor on the centrifuge frame, the mass of the oscillating system is reduced by the motor mass and it is possible to use heavy motors with high drive power.
- centrifuge according to the invention is basically suitable for use in an explosive environment.
- the storage of the rotating system in a bearing pot, which is connected to the frame via elastic bearing elements, means that an angular misalignment only occurs between the bearing pot and the frame, whereas the angular misalignment between the inner ring and outer ring of the respective bearings is greatly reduced. Standard rolling bearings can thus be used.
- the inclination of the axis of rotation relative to a vertical which occurs during operation of the separator, causes one of the elastic bearing elements arranged between the bearing pot and the frame to be compressed, while an opposite one is stretched.
- the compression or expansion of the bearing elements can take place all around with the gyroscopic movement of the rotating system.
- the bearing pot with a bearing pot collar has at least three elastic bearing elements. te is placed on the centrifuge frame and when the bearing pot with a bearing pot collar is placed on the centrifuge frame via at least three elastic bearing elements and that at least three guide pins are arranged on the bearing pot, each of which engages in a compatible bore in the centrifuge frame and which are deformable in the axial direction and / or axially displaceable in the bores.
- the guide pins are axially displaceable within the bore or at least deformable to such an extent that a relative movement between the bearing cup collar and the frame in the direction of the longitudinal axis is possible.
- the bearing cup While the bearing elements arranged between the bearing cup collar and the top of the centrifuge frame absorb the axial forces, the bearing cup is additionally fixed in the radial direction by the guide pin. This makes it possible for the bearing pot to incline and straighten up all the way around with the gyroscopic movement of the drum and spindle, while always maintaining a defined position in relation to the centrifuge frame. The point of articulation therefore always lies essentially on the longitudinal axis and does not migrate radially.
- Jig. 1 shows a first embodiment of the centrifugal separator of the invention in a schematic sectional view
- 2 shows a second embodiment of the centrifugal separator of the invention, likewise in a sectional view
- FIG. 1 shows a centrifugal separator 100 in a complete sectional view.
- a motor 90 is attached to the underside of a centrifuge frame 40 screwed onto a foundation 2.
- a bearing pot 20 is inserted, which is held via elastic bearing elements 50 and guide pins 30.
- a vertically arranged spindle 10, on which a drum 12 is placed, is rotatably mounted in the bearing pot 20.
- the spindle 10 is connected to the motor 90 via a flexible coupling element 70.
- a grooved coupling bush and a feather key can be provided as a coupling element.
- the longitudinal axis 11 of the spindle 10 and the rotor axis 91 run in the idle state of the centrifugal separator 10.
- the bearing pot 20 has in particular a bearing pot collar 21, an upper bearing point 22 and a lower bearing point 24.
- the spindle 10 is rotatably supported by roller bearings.
- a plurality of bearing elements 50 are arranged distributed over the circumference. Furthermore, at least two guide pins 30 are provided, which are in compact Engage tible holes in the centrifuge frame 40.
- the guide pins 30 are axially elastic and / or axially displaceable and largely inelastic to radial loads.
- the spindle 10 is connected to the motor 90 via the flexible coupling element 70, so that an angular offset between the rotor axis 91 and the longitudinal axis 11 of the spindle 10 is due to a gyroscopic movement of the rotating system of spindle 10 and drum 12 is possible.
- the rotating system swings around pivot point G; the spindle axis 11 and the rotor axis 91 intersect at the articulation point G.
- the coupling point K is deflected slightly radially outward, as a result of which the shaft of the motor 90 is also inclined.
- Coupling point K is placed as close as possible to the articulation point G in order to keep the angular offset between the spindle axis 11 and the rotor axis 91 as small as possible and thus to keep the load on the bearings in the motor 90 low.
- the clutch 70 can also be designed such that a small radial offset between the axes 11 and 91 can be compensated for.
- a torsionally flexible design is possible in order to cushion torque peaks during operation of the system.
- the distance between the coupling point K and the articulation point G is 0.1 to 0.25 times the distance between the articulation point G and the center of gravity S of the rotating system consisting of drum 12 and spindle 10.
- the load is the Bearings of the motor 90 rigidly screwed to the frame 40 are small and do not lead to a significant reduction in the life of the motor 90.
- the bearing points of the guide pins 30 ⁇ relative to the coupling element 70 are arranged so deep on the frame 40 x that the articulation point G coincides with the coupling point K ⁇ .
- the inclined position of the spindle axis 11 can thus be completely compensated for within the coupling element 70 during operation.
- the coupling point remains on the longitudinal axis 91 of the motor 90 even during the operation of the centrifuge, so that the rotor axis 91 of the motor 90 is no longer deflected and, as a whole, is hardly loaded by the gyroscopic movement of the rotating system.
- FIGS. 3a and 3b show the orientation of the bearing cup 20 relative to the frame 40 ⁇ in different positions in the embodiment of the centrifuge 100 according to FIG. 2, in which the articulation point G ⁇ coincides with the coupling point K.
- the spindle 10 is mounted on the bearings 22, 24 within the bearing cup 20 via roller bearings, in particular angular contact ball and roller bearings.
- the guide pins are fastened 30 times on the underside of the bearing collar 21. These have a cone section 32 x and a cylinder section 34 x , which is inserted into a bushing 35 ⁇ .
- the sleeve 35 preferably comprises an elastomeric layer which is surrounded by an inner and an outer jacket made of metal.
- the guide pin 30 ⁇ is inserted into a bore 44 x in the frame 40 'via the bush 35 x .
- the fun The locking pin 30 * is mounted radially stiffly in the frame 40 ⁇ via the bush 35 ', while in the axial direction with a slanted position of the bearing cup 20 a slight axial displacement of the guide pin 30 ⁇ within the bore 44 ⁇ is possible.
- bearing elements 50 are provided between the frame 40 'and the bearing cup collar 21, which preferably consist of elastomeric materials.
- the weight forces of the rotating system are transmitted from the spindle 10 to the bearing elements 50 via the bearing pot 20 rigidly connected thereto and then introduced into the frame 40 x .
- the axial paths of the guide pins 30 ⁇ are short, since the guide pins are arranged at a small radial distance from the hinge point G x , and are preferably made possible by the elastic design of the bush 35 '.
- the guide pins 30 ⁇ ensure that the bearing pot 20 is supported in a radially rigid manner, so that the position of the articulation point G ⁇ with respect to the frame 40 ′ is largely constant, and that the bearing pot 20, on the other hand, with respect to an oblique position forced by the rotating system the spindle 10 is compliant.
Landscapes
- Centrifugal Separators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10125808A DE10125808A1 (de) | 2001-05-26 | 2001-05-26 | Zentrifugalseparator |
DE10125808 | 2001-05-26 | ||
PCT/EP2002/005664 WO2002096566A1 (de) | 2001-05-26 | 2002-05-23 | Zentrifugalseparator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1392446A1 true EP1392446A1 (de) | 2004-03-03 |
EP1392446B1 EP1392446B1 (de) | 2004-11-03 |
Family
ID=7686311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02745310A Expired - Lifetime EP1392446B1 (de) | 2001-05-26 | 2002-05-23 | Zentrifugalseparator |
Country Status (13)
Country | Link |
---|---|
US (1) | US6960158B2 (de) |
EP (1) | EP1392446B1 (de) |
JP (1) | JP4149817B2 (de) |
CN (1) | CN1284631C (de) |
AT (1) | ATE281243T1 (de) |
AU (1) | AU2002316919B2 (de) |
CA (1) | CA2448257C (de) |
DE (2) | DE10125808A1 (de) |
DK (1) | DK1392446T3 (de) |
ES (1) | ES2232762T3 (de) |
NZ (1) | NZ529194A (de) |
PT (1) | PT1392446E (de) |
WO (1) | WO2002096566A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9427747B2 (en) | 2008-05-13 | 2016-08-30 | Alfa Laval Corporate Ab | Centrifugal separator with lamella coupling |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10125808A1 (de) * | 2001-05-26 | 2002-12-12 | Westfalia Separator Food Tec G | Zentrifugalseparator |
EP1545788B1 (de) * | 2002-08-02 | 2012-04-11 | Harvest Technologies Corporation | Dekantierzentrifuge mit vibrationsisolierung |
DE10314118B4 (de) * | 2003-03-28 | 2005-05-12 | Westfalia Separator Ag | Antriebsvorrichtung für einen Separator |
SE526010C2 (sv) * | 2003-04-08 | 2005-06-14 | Alfa Laval Corp Ab | En drivanordning för en centrifugalseparator |
EP1975426B1 (de) * | 2004-11-12 | 2017-09-06 | Schaeffler Technologies AG & Co. KG | Drehverbindung |
DE102006011895A1 (de) * | 2006-03-15 | 2007-09-20 | Westfalia Separator Ag | Separatoranordnung in sanitärer Ausführung |
DE102006020467A1 (de) * | 2006-04-28 | 2007-10-31 | Westfalia Separator Ag | Separator mit Direktantrieb |
SE530223C2 (sv) * | 2006-05-15 | 2008-04-01 | Alfa Laval Corp Ab | Centrifugalseparator |
US7806820B2 (en) * | 2007-05-02 | 2010-10-05 | Gary Wayne Howell | Automatic balancing device and system for centrifuge rotors |
DE102007060588A1 (de) * | 2007-12-13 | 2009-06-18 | Gea Westfalia Separator Gmbh | Separator mit einem Direktantrieb |
RU2486963C2 (ru) * | 2007-12-13 | 2013-07-10 | Геа Вестфалия Сепаратор Гмбх | Сепаратор с системой смазки для короткого шпиндельного привода |
SE532905C2 (sv) * | 2008-09-22 | 2010-05-04 | Alfa Laval Corp Ab | Centrifugalseparator |
US8984940B2 (en) * | 2012-04-04 | 2015-03-24 | Elliot Company | Passive dynamic inertial rotor balance system for turbomachinery |
DE102012105499A1 (de) * | 2012-06-25 | 2014-01-02 | Gea Mechanical Equipment Gmbh | Separator |
CN105772234B (zh) * | 2016-04-19 | 2018-05-08 | 中国科学院理化技术研究所 | 一种大型离心设备转子自调心防护装置 |
DE102016224670A1 (de) * | 2016-12-12 | 2018-06-14 | Aktiebolaget Skf | Lageranordnung zur Lagerung eines Schraubenkompressorrotors und Verfahren zur Montage eines Schraubenkompressors |
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GB814352A (en) * | 1957-06-27 | 1959-06-03 | Eugen Scharpf | Improvements in or relating to centrifugal driers |
SE505128C2 (sv) * | 1995-10-10 | 1997-06-30 | Alfa Laval Ab | Dämpningsanordning |
GB269218A (en) * | 1925-10-20 | 1927-04-20 | Frank Grimble | An improved method of mounting and driving centrifugal separating apparatus |
US2487343A (en) * | 1948-04-23 | 1949-11-08 | Laval Separator Co De | Bearing assembly for centrifuges and the like |
US2534738A (en) * | 1948-06-18 | 1950-12-19 | Laval Separator Co De | Mount for rotating parts |
US2725188A (en) * | 1951-10-02 | 1955-11-29 | Laval Separator Co De | Shock mount for centrifugal separators |
US2827229A (en) * | 1953-08-26 | 1958-03-18 | Sorvall Inc Ivan | Centrifuge mounting means |
US3003831A (en) * | 1956-12-03 | 1961-10-10 | Gen Motors Corp | Bearing support |
DE1657276B1 (de) * | 1968-03-01 | 1971-07-08 | Heraeus Christ Gmbh | Daempfungseinrichtung fuer einen zentrifugenrotor |
US3692236A (en) * | 1970-10-30 | 1972-09-19 | Technicon Instr | Self-balancing centrifuge method and apparatus |
DE7112552U (de) * | 1971-04-01 | 1971-07-08 | Westfalia Separator Ag | Spindelanordnung fuer aufrecht stehende separatoren |
DE7224033U (de) * | 1972-06-27 | 1972-10-12 | Heraeus-Christ Gmbh | Kleinzentrifuge |
JPS539570U (de) * | 1976-07-09 | 1978-01-26 | ||
DE2711065C3 (de) * | 1977-03-14 | 1982-05-19 | Gesellschaft für Kernverfahrenstechnik mbH, 5170 Jülich | Radial gedämpftes Fanglager für überkritisch laufende Rotoren |
US4079882A (en) * | 1977-03-18 | 1978-03-21 | Kabushiki Kaisha Kubota Seisakusho | Vibration-isolating apparatus for a centrifuge |
JPS5453772U (de) * | 1977-09-24 | 1979-04-13 | ||
DE3125832C2 (de) * | 1981-07-01 | 1985-07-25 | Westfalia Separator Ag, 4740 Oelde | Zentrifuge mit einem, mit vertikaler Spindel versehenen Antrieb |
DD248968A1 (de) | 1986-05-14 | 1987-08-26 | Kyffhaeuserhuette Maschf | Leistungselektronischer antrieb fuer zentrifugalseparatoren |
DE3734761A1 (de) * | 1987-10-14 | 1989-05-03 | Kloeckner Humboldt Deutz Ag | Zentrifuge zum trennen von stoffen unterschiedlicher dichte mit senkrechter zentrifugenspindel |
FR2622290B1 (fr) * | 1987-10-22 | 1990-03-30 | Jouan | Dispositif pour la detection du balourd d'une machine tournante, a partir d'un seuil predetermine |
US5199937A (en) * | 1989-08-24 | 1993-04-06 | Kurashiki Boseki Kabushiki Kaisha | Centrifugal separator |
DE4314440C1 (de) | 1993-05-03 | 1994-06-16 | Kyffhaeuser Maschf Artern Gmbh | Zentrifugalseparator mit Schwerstanlauf |
DE4408182C1 (de) * | 1994-03-11 | 1995-05-11 | Westfalia Separator Ag | Antrieb für eine Zentrifugentrommel |
DE19516904A1 (de) * | 1995-05-09 | 1996-11-14 | Heraeus Instr Gmbh | Laborzentrifuge |
JPH0910631A (ja) * | 1995-07-03 | 1997-01-14 | Toa Seisakusho:Kk | せん断型粘性抵抗を有する吸振器を取りつけた遠心分離 器。 |
JP3713884B2 (ja) * | 1996-11-08 | 2005-11-09 | 日立工機株式会社 | ボールバランサ及びボールバランサを装着した遠心分離機 |
SE517176C2 (sv) * | 1997-06-11 | 2002-04-23 | Alfa Laval Ab | Stödanordning för en centrifugalseparator |
JP3950520B2 (ja) * | 1997-07-25 | 2007-08-01 | 株式会社トミー精工 | 遠心分離機 |
SE512770C2 (sv) * | 1998-02-19 | 2000-05-08 | Alfa Laval Ab | Stödanordning |
US6039869A (en) * | 1998-09-28 | 2000-03-21 | Dudley; Russell D. | Support arrangement for centrifugal chip separator |
US6354988B1 (en) * | 1999-06-17 | 2002-03-12 | Kendro Laboratory Products, Llp | Centrifuge gyro diaphragm capable of maintaining motor shaft concentricity |
JP3968960B2 (ja) * | 1999-07-15 | 2007-08-29 | 日立工機株式会社 | 遠心機 |
DE50001202D1 (de) * | 1999-08-03 | 2003-03-13 | Eppendorf Ag | Unwuchtsaugleichsvorrichtung für zentrifugen |
CN1267199C (zh) * | 2001-04-20 | 2006-08-02 | 日立工机株式会社 | 离心机 |
DE10125808A1 (de) * | 2001-05-26 | 2002-12-12 | Westfalia Separator Food Tec G | Zentrifugalseparator |
-
2001
- 2001-05-26 DE DE10125808A patent/DE10125808A1/de not_active Withdrawn
-
2002
- 2002-05-23 AU AU2002316919A patent/AU2002316919B2/en not_active Ceased
- 2002-05-23 WO PCT/EP2002/005664 patent/WO2002096566A1/de active IP Right Grant
- 2002-05-23 US US10/478,173 patent/US6960158B2/en not_active Expired - Fee Related
- 2002-05-23 JP JP2002593069A patent/JP4149817B2/ja not_active Expired - Fee Related
- 2002-05-23 PT PT02745310T patent/PT1392446E/pt unknown
- 2002-05-23 ES ES02745310T patent/ES2232762T3/es not_active Expired - Lifetime
- 2002-05-23 AT AT02745310T patent/ATE281243T1/de active
- 2002-05-23 CA CA2448257A patent/CA2448257C/en not_active Expired - Fee Related
- 2002-05-23 DK DK02745310T patent/DK1392446T3/da active
- 2002-05-23 NZ NZ529194A patent/NZ529194A/en not_active IP Right Cessation
- 2002-05-23 EP EP02745310A patent/EP1392446B1/de not_active Expired - Lifetime
- 2002-05-23 DE DE50201474T patent/DE50201474D1/de not_active Expired - Lifetime
- 2002-05-23 CN CNB028107233A patent/CN1284631C/zh not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO02096566A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9427747B2 (en) | 2008-05-13 | 2016-08-30 | Alfa Laval Corporate Ab | Centrifugal separator with lamella coupling |
Also Published As
Publication number | Publication date |
---|---|
AU2002316919B2 (en) | 2007-08-09 |
EP1392446B1 (de) | 2004-11-03 |
DK1392446T3 (da) | 2005-03-14 |
CN1284631C (zh) | 2006-11-15 |
US6960158B2 (en) | 2005-11-01 |
ATE281243T1 (de) | 2004-11-15 |
ES2232762T3 (es) | 2005-06-01 |
CN1561263A (zh) | 2005-01-05 |
WO2002096566A1 (de) | 2002-12-05 |
JP2004526571A (ja) | 2004-09-02 |
CA2448257A1 (en) | 2002-12-05 |
JP4149817B2 (ja) | 2008-09-17 |
DE10125808A1 (de) | 2002-12-12 |
US20040142808A1 (en) | 2004-07-22 |
DE50201474D1 (de) | 2004-12-09 |
NZ529194A (en) | 2005-01-28 |
CA2448257C (en) | 2011-02-01 |
PT1392446E (pt) | 2005-03-31 |
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