WO2008031424A2 - Dispositif d'entraînement de séparateurs - Google Patents

Dispositif d'entraînement de séparateurs Download PDF

Info

Publication number
WO2008031424A2
WO2008031424A2 PCT/DE2007/001642 DE2007001642W WO2008031424A2 WO 2008031424 A2 WO2008031424 A2 WO 2008031424A2 DE 2007001642 W DE2007001642 W DE 2007001642W WO 2008031424 A2 WO2008031424 A2 WO 2008031424A2
Authority
WO
WIPO (PCT)
Prior art keywords
drive device
drive shaft
rotor
drive
motor housing
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.)
Ceased
Application number
PCT/DE2007/001642
Other languages
German (de)
English (en)
Other versions
WO2008031424A3 (fr
Inventor
Peter Helmreich
Tobias Montag
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.)
IHO Holding GmbH and Co KG
Original Assignee
Schaeffler KG
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 Schaeffler KG filed Critical Schaeffler KG
Publication of WO2008031424A2 publication Critical patent/WO2008031424A2/fr
Publication of WO2008031424A3 publication Critical patent/WO2008031424A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • B04B9/02—Electric motor drives
    • B04B9/04—Direct drive

Definitions

  • the present invention relates to a drive device for separators.
  • Such separators have long been known from the prior art and serve to separate different proportions within a liquid from each other. These separators operate on the principle of centrifuges, wherein the extremely high speed of a drum made of a light liquid ejects heavy fractions.
  • the present invention is therefore based on the object to improve the efficiency of a drive device for separators.
  • the footprint and the height should be reduced and a lower noise level during operation of the separator should be achieved.
  • a lesser to no speed drop should also be possible in the event of disturbances occurring during operation.
  • the drive device for separators has a drive shaft, which is connected directly to a drum of the separator.
  • an electric motor - preferably a synchronous or A synchronous motor can be used here - is provided, which drives the drive shaft, said electric motor having a stator and a stator rotatably arranged with respect to this rotor. According to the rotor of the motor is rotatably connected to the drive shaft (direct drive).
  • the invention includes both versions with vertical alignment of the drum and / or drive shaft as well as versions with horizontal orientation of the drum and / or drive shaft.
  • the rotor of the electric motor is preferably arranged inside the stator of the electric motor (inner rotor). Also, so-called external rotor, in which the rotor is arranged outside the stator, can be used.
  • the drive shaft is at least partially disposed within the rotor, d. H. the rotor surrounds this section of the drive shaft.
  • the motor is arranged in a motor housing and the drive shaft via at least one bearing, preferably at least two bearings, rotatably mounted relative to this motor housing.
  • the motor housing absorbs the process vibrations.
  • a plurality of bearings which rotatably support the drive shaft relative to the motor housing. At least one bearing above the rotor and at least one bearing below the rotor are particularly advantageously arranged, ie the bearing of the drive shaft takes place both above the rotor and below the rotor.
  • a bearing disposed above the rotor bearing for rotatably supporting the drive shaft relative to the motor housing is designed as a double-row roller bearing.
  • the drum of the separator is arranged above the rotor. Therefore arise on this side of the drive shaft much higher loads than on the opposite side of the drive shaft. Therefore, several rolling bearings or multi-row roller bearings are preferably provided here, which can accommodate these higher forces in the axial and circumferential direction.
  • the drive device has a frame on which the motor housing is arranged.
  • the motor housing is particularly preferably arranged on the frame via damping devices. In this way, the motor housing can attenuate the recorded process vibrations via the damping devices to the frame.
  • the motor housing has cooling ribs.
  • the drive device on a ventilation device for ventilation of the electric motor.
  • This can be a fan with fan blades that cool the electric motor.
  • This aerator can be fixed separately on the frame for reasons of rotor dynamics or on its own shaft section.
  • a magnetic coupling is provided, which is arranged between the drive shaft and the ventilation device. In this embodiment, the entrainment of the fan takes place by this magnetic coupling.
  • the ventilation device has a separate electric motor.
  • the ventilation device is operated by a separate direct drive here. This separate drive enables a temperature-controlled control of the speed of ventilation. processing device and thus an adjustable cooling capacity.
  • the cooling power generated by the ventilation device or the air flow can be dissipated via the above-mentioned cooling fins of the motor housing to the ambient air.
  • the present invention is further directed to a separator having a drive device of the type described above.
  • a drum of the separator is driven by the drive shaft and a connection between the drum and the drive shaft is detachable.
  • the frame has at least one foot which is height-adjustable or height-displaceable.
  • all feet of the frame are height adjustable. In this way, a customer-friendly and fast maintenance is possible. Due to the detachable and tight connection between the drive shaft and the process unit d. H. the drum is a simple exchange of the drive device with respect to the drum of the separator allows.
  • Fig. 1 is a cutaway view of a drive device according to the invention.
  • FIG. 1 shows a drive device 1.
  • This drive device 1 has a frame, which is designated in its entirety by 16.
  • This frame 16 has a cover plate 16a on which side parts 29 are arranged.
  • the stand 16 comprises floor segments 39. Between the floor segments 39 is a grab guard 40, which at the same time acts as a frame stiffener, is provided which prevents reaching into the device and thus reduces the risk of injury.
  • a corresponding grab guard / frame stiffener 37 is also provided on the other side parts 29.
  • the reference numeral 2 refers to a drive shaft which serves to drive the process unit such as a drum of the separator.
  • this drum is pushed onto the conical end portion 2a of the drive shaft 2 and can then be anchored, for example by means of screws.
  • the drive shaft 2 is rotatably connected to a rotor 6.
  • this rotor 6 has a cylinder body 7, on which the rotor magnets are arranged.
  • only one such rotor journal 7a is shown here for the sake of simplicity.
  • a sleeve 22 is pushed onto the drive shaft 2 and abuts a shoulder 2b of the drive shaft 2.
  • the sleeve 22 is fixed in the axial direction.
  • the sleeve is axially fixed by means of a spacer ring 35, the inner ring of the lower bearing by means of a groove nut 34.
  • the reference numeral 10 refers to a motor housing in which the rotor 6 and a stator 5 are arranged.
  • This motor housing 10 has over its entire circumference cooling ribs 15, which serve to cool the entire arrangement. Above the cooling ribs, the cover plate 16a has an opening 20. Via screw 10b and pin connections 10c, a damping ring 24 is arranged on the motor housing 10. This damping ring extends in the radial direction along the width B shown in Fig. 1 and has a plurality of bores 24a, in each of which damping elements 19a are arranged. In the embodiment shown in Fig. 1, 20 such holes are used, but it can also be provided a higher or lower number of holes 24a. The damping elements 19a are fastened via screw connections 25 to the cover plate 16a of the frame 16. Thus, a damping of the damping ring 24 and thus also of the motor housing 10 relative to the frame 16 can be achieved.
  • a holding body 30 is further arranged or fixed with a circular cross-section, wherein this holding body also has bores 30a, in which damping elements 19b are arranged.
  • screw connections 18 are also provided here, which are fastened to the motor housing 10. This is also connected to the frame 16 via damping devices 19b in the lower region of the motor housing 10.
  • the motor housing 10 is decoupled from the frame 16 by means of damping elements (decoupling elements) 19a, 19b via a holding body 30 and a damping ring 24.
  • the drive shaft 2 is rotatably supported by two upper bearings 12 and a lower counter bearing 14 with respect to the motor housing 10.
  • the reference numerals 27 and 28 denote an inner ring and an outer ring of the bearing 12 and the reference numeral 26 rolling elements of the bearing 12. Accordingly, the reference numerals 31 and 32 refer to an inner ring and an outer ring of the anvil 14th In this case, two bearings 12 are provided above the rotor - in this case - since much larger forces occur here.
  • the reference numeral 36 refers to channels to discharge a lubricant such as grease from the bearings.
  • the reference numeral 11 refers to a bottom plate, with which the motor housing is supported relative to the anvil 14. The bottom plate 11 is fixed to the motor housing 10 with screws 11a. Also, the stator 5 of the electric motor is arranged above this bottom plate 11.
  • the bearings 12 are secured in the axial direction by a cover 33.
  • This cover is connected by means of screws 33a with the motor housing 10 and a cylindrical shoulder 10a of the motor housing 10.
  • the motor 5, 6, 7 in this embodiment is a synchronous motor.
  • the direct arrangement of the rotor on the drive shaft, the air gap between the rotor 6 and the stator 5 can be kept very low, and thus a high power output can be achieved.
  • a ventilation device 9 is arranged net.
  • this ventilation device 9 is arranged on a separate shaft 13, which is separated from the drive shaft 2. Due to this separate guidance of the rotor overall rotor dynamics is improved.
  • the aeration devices 9 are connected via a ring 8 with the separate shaft 13.
  • a rotational movement of the ventilation device 9 is achieved via a magnetic coupling 3, wherein here individual magnets 38 can be seen.
  • a separate drive motor for example an asynchronous motor. Possible reception area for this would be, for example, the ring 8.
  • the cooling could be regulated, for example, as a function of the operating temperature and could be continued via suitable control devices even after the operation of the separator.
  • a timer could be provided which allows cooling of the drive device after its operation. By the aeration device, the air is pushed up past the cooling fins 15 and through the opening 20 therethrough.
  • the drive device on feet 17, which is a height adjustment of the drive device 1 relative to a
  • Allow process unit such as a drum of the separator.
  • Drive device can be lowered and removed from the drum of the separator to be replaced, for example, against another drive device.

Landscapes

  • Motor Or Generator Frames (AREA)
  • Centrifugal Separators (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

L'invention concerne un dispositif d'entraînement de séparateurs comportant un arbre d'entraînement (2) entraînant un tambour d'un séparateur, et un moteur électrique (5, 6, 7) entraînant l'arbre d'entraînement (2), le moteur électrique comprenant un stator (5) et un rotor (6) disposé rotatif par rapport au stator. Selon l'invention, le rotor (6) du moteur est connecté de façon bloquée en rotation avec l'arbre d'entraînement (2).
PCT/DE2007/001642 2006-09-13 2007-09-12 Dispositif d'entraînement de séparateurs Ceased WO2008031424A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610042968 DE102006042968A1 (de) 2006-09-13 2006-09-13 Antriebsvorrichtung für Separatoren
DE102006042968.0 2006-09-13

Publications (2)

Publication Number Publication Date
WO2008031424A2 true WO2008031424A2 (fr) 2008-03-20
WO2008031424A3 WO2008031424A3 (fr) 2008-08-14

Family

ID=38704938

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/001642 Ceased WO2008031424A2 (fr) 2006-09-13 2007-09-12 Dispositif d'entraînement de séparateurs

Country Status (2)

Country Link
DE (1) DE102006042968A1 (fr)
WO (1) WO2008031424A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009009958A1 (de) * 2009-02-23 2010-09-02 Hanning Elektro-Werke Gmbh & Co. Kg Zentrifuge
IT1395590B1 (it) * 2009-06-30 2012-10-16 Nuova Maip Macchine Agric Separatore centrifugo verticale con motore diretto.

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE587814C (de) * 1929-12-14 1933-11-10 Siemens Schuckertwerke Akt Ges Elektroschleudermaschine mit zwischen Trommel und Gehaeuseboden durchstroemender Motorkuehlluft
NL175361C (nl) * 1952-01-18 Electrische Meetinstrumenten E Veiligheidskast van kunststof voor montage in een metalen lichtmast of dergelijke.
CH409840A (de) * 1963-01-30 1966-03-31 Licentia Gmbh Zentrifuge, insbesondere Haushaltswäscheschleuder
DE1488208B2 (de) * 1964-07-29 1971-06-03 Licentia Patent Verwaltungs GmbH, 6000 Frankfurt Haushaltswaescheschleuder
DE3325566A1 (de) * 1983-07-15 1985-01-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Vorrichtung zum antrieb von zentrifugen
DE3808020A1 (de) * 1988-03-10 1989-09-21 Siemens Ag Luefterradantrieb bei drehzahlveraenderlichen antrieben, insbesondere bei schwungmasseantrieben
JPH02280853A (ja) * 1989-04-21 1990-11-16 Hitachi Koki Co Ltd 冷却遠心機
JPH09141137A (ja) * 1995-11-24 1997-06-03 Hitachi Koki Co Ltd 液体の遠心分離方法とその装置
US6354988B1 (en) * 1999-06-17 2002-03-12 Kendro Laboratory Products, Llp Centrifuge gyro diaphragm capable of maintaining motor shaft concentricity
JP4110454B2 (ja) * 2002-05-17 2008-07-02 日立工機株式会社 細胞洗浄遠心機
EP1479443B1 (fr) * 2003-05-19 2005-11-09 Andritz-Guinard S.A.S. Système d'entraínement d'une centrifugeuse
DE10334370A1 (de) * 2003-07-25 2005-02-24 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit Direktantrieb
JP2006159005A (ja) * 2004-12-02 2006-06-22 Hitachi Koki Co Ltd 遠心機

Also Published As

Publication number Publication date
DE102006042968A1 (de) 2008-03-27
WO2008031424A3 (fr) 2008-08-14

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