[go: up one dir, main page]

EP1056545B1 - Screw-type solid bowl centrifuge with multistage planetary gear train - Google Patents

Screw-type solid bowl centrifuge with multistage planetary gear train Download PDF

Info

Publication number
EP1056545B1
EP1056545B1 EP99902523A EP99902523A EP1056545B1 EP 1056545 B1 EP1056545 B1 EP 1056545B1 EP 99902523 A EP99902523 A EP 99902523A EP 99902523 A EP99902523 A EP 99902523A EP 1056545 B1 EP1056545 B1 EP 1056545B1
Authority
EP
European Patent Office
Prior art keywords
drum
gear train
screw
planetary gear
stages
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.)
Expired - Lifetime
Application number
EP99902523A
Other languages
German (de)
French (fr)
Other versions
EP1056545B2 (en
EP1056545A1 (en
Inventor
Hans-Joachim Beyer
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.)
GEA Mechanical Equipment GmbH
Original Assignee
Westfalia Separator GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7857905&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1056545(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Westfalia Separator GmbH filed Critical Westfalia Separator GmbH
Publication of EP1056545A1 publication Critical patent/EP1056545A1/en
Application granted granted Critical
Publication of EP1056545B1 publication Critical patent/EP1056545B1/en
Publication of EP1056545B2 publication Critical patent/EP1056545B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B1/2016—Driving control or mechanisms; Arrangement of transmission gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B1/2016—Driving control or mechanisms; Arrangement of transmission gearing
    • B04B2001/2025—Driving control or mechanisms; Arrangement of transmission gearing with drive comprising a planetary gear

Definitions

  • the invention relates to a solid bowl screw centrifuge with a the two end faces, which can be driven and rotated about a horizontal axis Drum and a coaxially rotatably mounted therein, with a differential speed opposite the drivable screw conveyor, the Drive has a multi-stage epicyclic gear, the housing shell with the drum shell and its output shaft connected to the screw conveyor is.
  • the housing of the multi-stage epicyclic gear rotates around the horizontal during operation Axis of rotation of the drum. Because the gearbox with the drum shell connected, these components have the same speed.
  • Solid bowl screw centrifuges are known in which the planetary gear with the drum between the drum bearings or outside the drive side Drum bearing is arranged.
  • a screw centrifuge is known from US Pat. No. 3,061,181, in which the Epicyclic gear with the drum between the drum bearings is provided.
  • This screw centrifuge with the so-called “internal gear” can although the drive-side bearings are kept relatively small, the grows Distance between the two bearings by the width of the epicyclic gear.
  • a screw centrifuge is known from US Pat. No. 5,403,260, in which the Epicyclic gear is arranged outside the drum bearing. This is about it is a so-called "external gear".
  • the disadvantage is that both the Hub of the housing of the epicyclic gearbox as well as the gearbox output shaft must be passed through the drive-side bearing of the drum. The resulting bearing size leads to high drum speeds and the screw conveyor to problems.
  • the natural frequency of the drum is one of the limiting variables for the maximum possible drum speed.
  • the invention has for its object a screw centrifuge of the beginning mentioned type so that when using multi-stage Orbital high drum speeds and large circumferential speeds Drum diameters are possible.
  • This object is achieved in that the transmission side Drum bearing provided between two stages of the multi-stage epicyclic gear is.
  • the housing of the multi-stage Epicyclic gear in the area of the gearbox-side drum bearing a cylindrical Intermediate piece with reduced compared to the housing parts of the gear stages Diameter on.
  • the gearbox-side drum bearing takes that Intermediate piece and a shaft connecting the gear stages.
  • the diameter the intermediate piece thus corresponds to the inside diameter of a suitable one Drum bearing.
  • the gear housing must be formed in two parts, so that Bearing can be mounted in the area of the intermediate piece.
  • the solid-bowl screw centrifuges which are shown in FIGS. 1 to 6, have a drum 1 which is rotatably mounted about a horizontal axis 2 is.
  • a screw conveyor not shown, is arranged coaxially in the drum and also rotatably mounted about the horizontal axis 2.
  • the drive of the Conveyor screw takes place via an output shaft 3 of a multi-stage epicyclic gear 4, which in the solid bowl screw centrifuge according to FIG. 1 with the Drum 1 is arranged between the bearings 5.6.
  • the epicyclic gear 4 is outside the gear-side Camp 5 provided.
  • FIG. 3 and 6 Exemplary embodiments of the construction according to the invention are shown in FIG. 3 and 6 shown.
  • the gearbox-side drum bearing 5 arranged between stages 7 and 8 of epicyclic gear 9.
  • the gearbox 10 which rotates in operation, is connected to the drum shell 11 and has a cylindrical in the area of the gear-side drum bearing 5 Intermediate piece 12, whose diameter compared to the housing parts gear stages 7 and 8 are reduced.
  • the camp 5 thus takes that Intermediate piece 12 and a shaft 13 connecting the gear stages 7 and 8 on.
  • the intermediate piece 12 is divided transversely to the axis of rotation 2, for installation reasons.
  • the drum shell 11 have a diameter that is greater than Is 1,000 mm.
  • the ratio between the center distance L of the bearings 5 and 6 the drum 1 and the diameter D of the drum shell 11 (L / D) can be greater than 3.8.
  • the torque between the drum and the screw conveyor can e.g. 100,000 Nm.
  • the peripheral speed at the inner radius the drum shell 11 can be greater than 105 m / s.
  • the arrangement according to the invention of the gear-side drum bearing between two stages of a multi-stage epicyclic gear is particularly suitable for very large decanters.

Landscapes

  • Centrifugal Separators (AREA)

Abstract

The invention relates to a screw-type centrifuge configured in such a way that the use of multistage planetary gear trains allows for high peripheral speeds of the drum and large drum diameters. According to the invention the drum bearing (5) on the gear train side is positioned between two stages (7, 8) of the multistage planetary gear train. The housing jacket (10) of the multistage planetary gear train, which is connected to the drum jacket (11) and therefore rotates at the same r.p.m., has an intermediate piece (12) which has a small diameter and is housed by the drum bearing (5) together with a shaft (13) connecting the gear train stages (7 and 8). The system provided for in the invention, according to which the drum bearing (5) on the gear train side is positioned between two stages of the multistage planetary gear train, is used in the case of very large decanters for which the drum rotates at very high peripheral speeds.

Description

Die Erfindung bezieht sich auf eine Vollmantel-Schneckenzentrifuge mit einer an den beiden Stirnseiten gelagerten, um eine horizontale Achse drehbaren, antreibbaren Trommel und einer koaxial darin drehbar gelagerten, mit einer Differenzdrehzahl gegenüber der Trommel antreibbaren Förderschnecke, wobei der Antrieb ein mehrstufiges Umlaufgetriebe aufweist, dessen Gehäusemantel mit dem Trommelmantel und dessen Abtriebswelle mit der Förderschnecke verbunden ist.The invention relates to a solid bowl screw centrifuge with a the two end faces, which can be driven and rotated about a horizontal axis Drum and a coaxially rotatably mounted therein, with a differential speed opposite the drivable screw conveyor, the Drive has a multi-stage epicyclic gear, the housing shell with the drum shell and its output shaft connected to the screw conveyor is.

Mit Hilfe einer Differenzdrehzahl zwischen Trommel und Schnecke wird der Feststoff zum Feststoffaustrag an einem stirnseitigen Trommelende geführt.With the help of a differential speed between the drum and the screw Solid to the solid discharge at an end of the drum led.

Das Gehäuse des mehrstufigen Umlaufgetriebes rotiert im Betrieb um die horizontale Drehachse der Trommel. Da das Getriebegehäuse mit dem Trommelmantel verbunden ist, haben diese Bauteile die gleiche Drehzahl.The housing of the multi-stage epicyclic gear rotates around the horizontal during operation Axis of rotation of the drum. Because the gearbox with the drum shell connected, these components have the same speed.

Es sind Vollmantel-Schneckenzentrifugen bekannt, bei denen das Umlaufgetriebe mit der Trommel zwischen den Trommellagern oder außerhalb des antriebsseitigen Trommellagers angeordnet ist.Solid bowl screw centrifuges are known in which the planetary gear with the drum between the drum bearings or outside the drive side Drum bearing is arranged.

Aus der US-PS 3 061 181 ist eine Schneckenzentrifuge bekannt, bei der das Umlaufgetriebe mit der Trommel zwischen den Trommellagern vorgesehen ist. Bei dieser Schneckenzentrifuge mit dem sog. "innenliegenden Getriebe" kann zwar das antriebsseitige Lager relativ kleingehalten werden, jedoch wächst der Abstand zwischen den beiden Lagern um die Baubreite des Umlaufgetriebes.A screw centrifuge is known from US Pat. No. 3,061,181, in which the Epicyclic gear with the drum between the drum bearings is provided. This screw centrifuge with the so-called "internal gear" can although the drive-side bearings are kept relatively small, the grows Distance between the two bearings by the width of the epicyclic gear.

Aus der US-PS 5 403 260 ist eine Schneckenzentrifuge bekannt, bei der das Umlaufgetriebe außerhalb der Trommellagerung angeordnet ist. Hierbei handelt es sich um ein sog. "außenliegendes Getriebe". Nachteilig ist, daß sowohl die Nabe des Gehäuses des Umlaufgetriebes als auch die Getriebeabtriebswelle durch das antriebsseitige Lager der Trommel hindurchgeführt werden müssen. Die sich daraus ergebende Lagergröße führt bei hohen Drehzahlen der Trommel und der Förderschnecke zu Problemen.A screw centrifuge is known from US Pat. No. 5,403,260, in which the Epicyclic gear is arranged outside the drum bearing. This is about it is a so-called "external gear". The disadvantage is that both the Hub of the housing of the epicyclic gearbox as well as the gearbox output shaft must be passed through the drive-side bearing of the drum. The resulting bearing size leads to high drum speeds and the screw conveyor to problems.

Bei großen Schneckenzentrifugen ist die Eigenfrequenz der Trommel eine der limitierenden Größen für die maximal mögliche Trommeldrehzahl. Je größer der Lagerabstand L zwischen den Trommellagern ist, desto niedriger ist die Eigenfrequenz ω der Trommel, wodurch die maximal mögliche Betriebsdrehzahl der Trommel reduziert wird
ω ∼ 1/L2.With large screw centrifuges, the natural frequency of the drum is one of the limiting variables for the maximum possible drum speed. The larger the bearing distance L between the drum bearings, the lower the natural frequency ω of the drum, whereby the maximum possible operating speed of the drum is reduced
ω ∼ 1 / L 2 .

Aus verfahrenstechnischen Gründen ist im allgemeinen ein großes Verhältnis von Trommellänge zum Trommeldurchmesser D erwünscht (L/D).For procedural reasons there is generally a large ratio from drum length to drum diameter D desired (L / D).

Durch das innenliegende Getriebe wird wegen der vorgenannten Problematik die maximale Baulänge der Trommel um die Getriebebreite reduziert. Wegen der hohen Drehmomente bei großen Schneckenzentrifugen kann es erforderlich sein, die Umlaufgetriebe mehrstufig auszuführen, wodurch deren Breite noch zunimmt. Andererseits führen die hohen Drehmomente aber auch zu so großen Durchmessern der Getriebeabtriebswelle, daß ein außenliegendes Getriebe wegen der damit verbundenen nachteiligen Lagergröße nicht in Frage kommt.Due to the internal gearbox because of the aforementioned problem the maximum overall length of the drum is reduced by the gear width. Because of the high torques with large screw centrifuges may be required be to run the epicyclic gearboxes in several stages, thereby increasing their width increases. On the other hand, the high torques also lead to such large ones Diameters of the transmission output shaft that an external transmission because the associated disadvantageous stock size is out of the question.

Der Erfindung liegt die Aufgabe zugrunde, eine Schneckenzentrifuge der eingangs genannten Art so auszubilden, daß bei Verwendung von mehrstufigen Umlaufgetrieben hohe Umfangsgeschwindigkeiten der Trommel und große Trommeldurchmesser möglich sind.The invention has for its object a screw centrifuge of the beginning mentioned type so that when using multi-stage Orbital high drum speeds and large circumferential speeds Drum diameters are possible.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das getriebeseitige Trommellager zwischen zwei Stufen des mehrstufigen Umlaufgetriebes vorgesehen ist. This object is achieved in that the transmission side Drum bearing provided between two stages of the multi-stage epicyclic gear is.

Bei einer vorteilhaften Ausführungsform weist das Gehäuse des mehrstufigen Umlaufgetriebes im Bereich des getriebeseitigen Trommellagers ein zylindrisches Zwischenstück mit gegenüber den Gehäuseteilen der Getriebestufen reduziertem Durchmesser auf. Das getriebeseitige Trommellager nimmt das Zwischenstück und eine die Getriebestufen verbindende Welle auf. Der Durchmesser des Zwischenstücks entspricht somit dem Innendurchmesser eines geeigneten Trommellagers.In an advantageous embodiment, the housing of the multi-stage Epicyclic gear in the area of the gearbox-side drum bearing a cylindrical Intermediate piece with reduced compared to the housing parts of the gear stages Diameter on. The gearbox-side drum bearing takes that Intermediate piece and a shaft connecting the gear stages. The diameter the intermediate piece thus corresponds to the inside diameter of a suitable one Drum bearing.

Bei der erfindungsgemäßen Ausführung ist zumindest die letzte Getriebestufe mit dem größten Drehmoment mit der Trommel zwischen den Trommellagern angeordnet, so daß die Getriebeabtriebswelle mit dem größten Durchmesser nicht durch das getriebeseitige Trommellager geführt werden muß und sich die Getriebebaubreite nur zum Teil auf den Lagerabstand der Trommel auswirkt. Die weiteren Getriebestufen können als außenliegender Getriebeanteil ausgeführt werden. Das Getriebegehäuse muß zweiteilig ausgebildet sein, damit das Lager im Bereich des Zwischenstücks montiert werden kann.In the embodiment according to the invention there is at least the last gear stage with the greatest torque with the drum between the drum bearings arranged so that the transmission output shaft with the largest diameter does not have to be guided through the gearbox drum bearing and the Gear unit width only partially affects the bearing clearance of the drum. The other gear stages can be designed as external gear components become. The gear housing must be formed in two parts, so that Bearing can be mounted in the area of the intermediate piece.

Weitere Merkmale der Erfindung ergeben sich aus den Unteransprüchen.Further features of the invention emerge from the subclaims.

Ein Ausführungsbeispiel der Erfindung wird im folgenden unter Bezugnahme auf die Zeichnung beschrieben.An embodiment of the invention will now be described with reference to FIG the drawing described.

Es zeigen:

Figur 1
in schematischer Darstellung eine bekannte Schneckenzentrifuge mit einem innenliegenden, mehrstufigen Umlaufgetriebe,
Figur 2
eine bekannte Schneckenzentrifuge mit außenliegendem, mehrstufigen Umlaufgetriebe in schematischer Darstellung,
Figur 3
eine erfindungsgemäße Ausführung in schematischer Darstellung,
Figur 4
eine bekannte Schneckenzentrifuge, bei der im Gegensatz zu der Ausführung nach der Fig. 1 das Umlaufgetriebe an dem Ende der Trommel angeordnet ist, an dem die Flüssigkeit ausgetragen wird,
Figur 5
eine bekannte Schneckenzentrifuge, bei der im Gegensatz zu der Aus führung nach der Fig. 2 das Umlaufgetriebe an dem Ende der Trommel vorgesehen ist, an dem die Flüssigkeit abgeworfen wird und
Figur 6
eine erfindungsgemäße Ausführung mit dem Umlaufgetriebe am flüssigkeitsseitigen Trommelende.
Show it:
Figure 1
a schematic representation of a known screw centrifuge with an internal, multi-stage planetary gear,
Figure 2
a known screw centrifuge with external, multi-stage planetary gear in a schematic representation,
Figure 3
an embodiment of the invention in a schematic representation,
Figure 4
a known screw centrifuge, in which, in contrast to the embodiment according to FIG. 1, the epicyclic gear is arranged at the end of the drum at which the liquid is discharged,
Figure 5
a known screw centrifuge, in which, in contrast to the imple mentation of FIG. 2, the epicyclic gear is provided at the end of the drum at which the liquid is dropped and
Figure 6
an embodiment of the invention with the epicyclic gear on the liquid-side drum end.

Die Vollmantel-Schneckenzentrifugen, die in den Fig. 1 bis 6 aufgezeigt sind, weisen eine Trommel 1 auf, die um eine horizontale Achse 2 drehbar gelagert ist. In der Trommel ist eine nicht dargestellte Förderschnecke koaxial angeordnet und ebenfalls um die horizontale Achse 2 drehbar gelagert. Der Antrieb der Förderschnecke erfolgt über eine Abtriebswelle 3 eines mehrstufigen Umlaufgetriebes 4, das bei der Vollmantel-Schneckenzentrifuge nach der Fig. 1 mit der Trommel 1 zwischen den Lagern 5,6 angeordnet ist.The solid-bowl screw centrifuges, which are shown in FIGS. 1 to 6, have a drum 1 which is rotatably mounted about a horizontal axis 2 is. A screw conveyor, not shown, is arranged coaxially in the drum and also rotatably mounted about the horizontal axis 2. The drive of the Conveyor screw takes place via an output shaft 3 of a multi-stage epicyclic gear 4, which in the solid bowl screw centrifuge according to FIG. 1 with the Drum 1 is arranged between the bearings 5.6.

Bei der Ausführung nach der Fig. 2 ist das Umlaufgetriebe 4 außerhalb des getriebeseitigen Lagers 5 vorgesehen.In the embodiment according to FIG. 2, the epicyclic gear 4 is outside the gear-side Camp 5 provided.

Ausführungsbeispiele der erfindungsgemäßen Konstruktion sind in den Fig. 3 und 6 aufgezeigt. Bei diesen Ausführungen ist das getriebeseitige Trommellager 5 zwischen den Stufen 7 und 8 des Umlaufgetriebes 9 angeordnet. Das Getriebegehäuse 10, das im Betrieb umläuft, ist mit dem Trommelmantel 11 verbunden und weist im Bereich des getriebeseitigen Trommellagers 5 ein zylindrisches Zwischenstück 12 auf, dessen Durchmesser gegenüber den Gehäuseteilen der Getriebestufen 7 und 8 reduziert ist. Das Lager 5 nimmt somit das Zwischenstück 12 und eine die Getriebestufen 7 und 8 verbindende Welle 13 auf.Exemplary embodiments of the construction according to the invention are shown in FIG. 3 and 6 shown. In these versions, the gearbox-side drum bearing 5 arranged between stages 7 and 8 of epicyclic gear 9. The gearbox 10, which rotates in operation, is connected to the drum shell 11 and has a cylindrical in the area of the gear-side drum bearing 5 Intermediate piece 12, whose diameter compared to the housing parts gear stages 7 and 8 are reduced. The camp 5 thus takes that Intermediate piece 12 and a shaft 13 connecting the gear stages 7 and 8 on.

Das Zwischenstück 12 ist quer zur Drehachse 2 geteilt und zwar aus Montagegründen.The intermediate piece 12 is divided transversely to the axis of rotation 2, for installation reasons.

Bei der erfindungsgemäßen Gestaltung der Vollmantel-Schneckenzentrifuge kann der Trommelmantel 11 einen Durchmesser aufweisen, der größer als 1.000 mm ist. Das Verhältnis zwischen dem Achsabstand L der Lager 5 und 6 der Trommel 1 und dem Durchmesser D des Trommelmantels 11 (L/D) kann größer sein als 3,8. Das Drehmoment zwischen Trommel und Förderschnecke kann z.B. 100.000 Nm betragen. Die Umfangsgeschwindigkeit am Innenradius des Trommelmantels 11 kann größer sein als 105 m/s.In the inventive design of the solid bowl screw centrifuge can the drum shell 11 have a diameter that is greater than Is 1,000 mm. The ratio between the center distance L of the bearings 5 and 6 the drum 1 and the diameter D of the drum shell 11 (L / D) can be greater than 3.8. The torque between the drum and the screw conveyor can e.g. 100,000 Nm. The peripheral speed at the inner radius the drum shell 11 can be greater than 105 m / s.

Die erfindungsgemäße Anordnung des getriebeseitigen Trommellagers zwischen zwei Stufen eines mehrstufigen Umlaufgetriebes eignet sich insbesondere für sehr große Dekanter.The arrangement according to the invention of the gear-side drum bearing between two stages of a multi-stage epicyclic gear is particularly suitable for very large decanters.

Aus den Darstellungen der erfindungsgemäßen Schneckenzentrifugen in den Fig. 3 und 6 ergibt sich, daß das Umlaufgetriebe mit der Anordnung des Trommellagers 5 zwischen den Getriebestufen am feststoffseitigen oder am flüssigkeitsseitigen Trommelende vorgesehen werden kann.From the representations of the screw centrifuges according to the invention in the 3 and 6 that the epicyclic gear with the arrangement of the drum bearing 5 between the gear stages on the solids side or on the liquid side Drum end can be provided.

Claims (4)

  1. Screw-type solid bowl centrifuge having a drivable drum, which is mounted at the two end sides and can rotate about its horizontal axis, and a feed screw which is mounted rotatably coaxially therein and can be driven at a differential speed with respect to the drum, the drive having a multi-stage planetary gear train, the housing shell of which is connected to the drum shell and the driven shaft of which is connected to the feed screw, characterized in that the drum bearing (5) on the gear train side is provided between two stages (7, 8) of the multi-stage planetary gear train.
  2. Screw-type solid bowl centrifuge according to Claim 1, characterized in that in the region of the drum bearing (5) on the gear train side the housing (10) of the multistage planetary gear train has a cylindrical intermediate element (12) having a diameter which is reduced in comparison with the housing parts of the gear-train stages, and the bearing (5) accommodates the intermediate element (12) and a shaft (13) connecting the gear-train stages (7, 8).
  3. Screw-type solid bowl centrifuge according to Claim 2, characterized in that the intermediate element (12) is divided transversely with respect to the axis of rotation (2).
  4. Screw-type solid bowl centrifuge according to one of the preceding claims, characterized in that the drum shell has an inside diameter D which is greater than 1000 mm, the ratio between the axial distance L of the bearings (5, 6) of the drum and the diameter D of the drum shell (11) (L/D) is greater than 3.8, the torque between the drum and the feed screw is large (for example 100 000 Nm) and the circumferential speed at the inside radius of the drum shell (11) is greater than 105 m/s.
EP99902523A 1998-02-17 1999-01-07 Screw-type solid bowl centrifuge with multistage planetary gear train Expired - Lifetime EP1056545B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19806374 1998-02-17
DE19806374A DE19806374C1 (en) 1998-02-17 1998-02-17 Split drive for large centrifugal decanter
PCT/EP1999/000055 WO1999042220A1 (en) 1998-02-17 1999-01-07 Screw-type solid bowl centrifuge with multistage planetary gear train

Publications (3)

Publication Number Publication Date
EP1056545A1 EP1056545A1 (en) 2000-12-06
EP1056545B1 true EP1056545B1 (en) 2002-06-05
EP1056545B2 EP1056545B2 (en) 2012-08-01

Family

ID=7857905

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99902523A Expired - Lifetime EP1056545B2 (en) 1998-02-17 1999-01-07 Screw-type solid bowl centrifuge with multistage planetary gear train

Country Status (7)

Country Link
US (1) US6387032B1 (en)
EP (1) EP1056545B2 (en)
JP (1) JP4212236B2 (en)
DE (2) DE19806374C1 (en)
DK (1) DK1056545T4 (en)
NO (1) NO319825B1 (en)
WO (1) WO1999042220A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3768908B2 (en) 2001-03-27 2006-04-19 キヤノン株式会社 Electron emitting device, electron source, image forming apparatus
US6589154B2 (en) * 2001-05-30 2003-07-08 Alfa Laval Inc. Decanter centrifuge with a gear box mounted on the bowl
DK1479443T3 (en) * 2003-05-19 2006-03-27 Andritz Guinard S A S Drive system for a centrifugal separator
DE102006028804A1 (en) 2006-06-23 2007-12-27 Westfalia Separator Ag Slug centrifuge with drive device
DE102006028803A1 (en) * 2006-06-23 2007-12-27 Westfalia Separator Ag screw centrifuge
BR112013005351A2 (en) * 2010-09-13 2016-08-30 Hiller Gmbh drive device in a helical centrifuge

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202812C (en) *
US1572612A (en) * 1925-06-02 1926-02-09 Laughlin Filter Corp Centrifugal separator
US1655426A (en) * 1926-02-23 1928-01-10 Laughlin Filter Corp Centrifugal machine
US1710315A (en) * 1926-10-30 1929-04-23 Laughlin Filter Corp Centrifugal separator
US1882383A (en) * 1930-08-11 1932-10-11 Hallitt William Continuous discharge centrifugal machine
US1962461A (en) * 1933-04-10 1934-06-12 Eric G Piper Differential drive for centrifuges and scrapers
US2043661A (en) * 1934-08-10 1936-06-09 Andrew F Howe Centrifugal driving mechanism
US2458706A (en) * 1945-05-14 1949-01-11 Centrifugal & Mechanical Ind I Differential gearing for centrifugal machines
US2649816A (en) * 1949-03-31 1953-08-25 Knowles Associates Transmission and reaction torque device
GB776263A (en) * 1952-05-19 1957-06-05 Int Comb Ltd Improvements in or relating to centrifuging machines
DE1031221B (en) * 1954-02-13 1958-05-29 Paul Spiess Dr Drive for the discharge screw of a screw centrifuge
NL190819C (en) * 1954-09-16 Nuovo Pignone Spa Speed variator for a dobby loom.
US3061181A (en) * 1958-11-28 1962-10-30 Sharples Corp Centrifuges
DE1087086B (en) * 1959-03-28 1960-08-11 Krupp Dolberg G M B H Screw centrifuge
US3187997A (en) * 1962-02-12 1965-06-08 Ametek Inc Horizontal type centrifugal separator
US3290962A (en) * 1962-10-17 1966-12-13 Giddings & Lewis Planetary transmission
DE1532706A1 (en) * 1967-03-10 1970-07-09 Hitachi Shipbuilding Eng Co Centrifugal device with differential gear
US3428247A (en) * 1967-09-26 1969-02-18 Combustion Eng Centrifuge lubricating and seal system
US3419211A (en) * 1967-10-23 1968-12-31 Hitachi Shipbuilding Eng Co Centrifugal machine with differential drive
DE1918130C3 (en) * 1968-04-18 1980-06-12 Mario De Dr.-Ing. Genua Martini (Italien) Solid bowl screw centrifuge
FR2070485A5 (en) * 1969-12-05 1971-09-10 Defontenay Paul Control system for centrifuge - to produce differential rotation
US3734399A (en) * 1971-05-28 1973-05-22 Beloit Corp Differential scroll drive
CH566817A5 (en) * 1973-07-21 1975-09-30 Cyphelly Ivan J
US4132131A (en) * 1977-07-14 1979-01-02 Curtiss-Wright Corporation Free-floating planetary transmission with contra-rotating dual output shafts
US4129249A (en) * 1977-08-17 1978-12-12 Baker Perkins Inc. Centrifuge for separating solids and liquids
DE2811887C2 (en) * 1978-03-18 1991-07-18 Westfalia Separator Ag, 4740 Oelde Drive for a continuously working screw centrifuge
DE2849547A1 (en) * 1978-11-15 1980-05-22 Kloeckner Humboldt Deutz Ag SNAIL CENTRIFUGE
DE3142779C2 (en) * 1981-10-28 1986-03-20 Werner Prof. Dr. 6740 Landau Stahl Solid bowl screw centrifuge
SU1168293A1 (en) * 1982-10-20 1985-07-23 Комплексный Научно-Исследовательский И Проектно-Технологический Институт Обогащения Твердых Горючих Ископаемых Filtering centrifuge
DK610486A (en) * 1986-12-17 1988-06-18 Danske Sukkerfab GEAR comprising an input shaft and an output shaft coaxially positioned
FR2610058A1 (en) * 1987-01-26 1988-07-29 Maag France Power transmission device with speed reduction between a rotating assembly and a shaft mounted coaxially inside the latter
CH680836A5 (en) * 1989-07-21 1992-11-30 Elatronic Ag
FR2665377B1 (en) * 1990-08-02 1993-09-03 Guinard Centrifugation CENTRIFUGAL DECANTER WITH ENERGY RECOVERY.
DE4028441A1 (en) * 1990-09-07 1992-03-12 Westfalia Separator Ag SCroll decanter centrifuge with variable bowl-scroll speed - utilising an ancillary variable speed electric pump, to provide constant flow, in the hydraulic control feedback circuit
US5529566A (en) * 1990-12-11 1996-06-25 Weil; Hans A. Method for controlling a solid-shell centrifuge
US5403260A (en) * 1993-06-04 1995-04-04 Hutchinson-Hayes International Automatic frequency controlled motor backdrive
DE4330905C2 (en) * 1993-09-11 1995-06-14 Fresenius Ag Locking device for a bearing arrangement of a separation chamber of a centrifuge
DE9409109U1 (en) * 1994-06-03 1995-09-28 Flottweg Gmbh, 84137 Vilsbiburg Centrifuge with stepless control of the differential speed between the drum and broaching tool
US5772573A (en) * 1996-02-26 1998-06-30 Baker Hughes Incorporated Decanter centrifuge and gear box with harmonic drive and associated operating method
FR2746675B1 (en) * 1996-03-29 1998-05-07 Guinard Centrifugation REDEX MODULE CENTRIFUGAL DECANTER
US6155964A (en) * 1999-03-01 2000-12-05 Hutchison-Hayes International, Inc. Centrifuge drive system providing optimum performance
US6056685A (en) * 1999-05-17 2000-05-02 G-Force Llc Centrifuge having selectively operable harmonic drive for scroll conveyor

Also Published As

Publication number Publication date
NO319825B1 (en) 2005-09-19
US6387032B1 (en) 2002-05-14
DE19806374C1 (en) 1999-07-01
JP4212236B2 (en) 2009-01-21
DK1056545T3 (en) 2002-09-16
DK1056545T4 (en) 2012-10-29
JP2002503549A (en) 2002-02-05
DE59901620D1 (en) 2002-07-11
EP1056545B2 (en) 2012-08-01
NO20004078L (en) 2000-08-15
EP1056545A1 (en) 2000-12-06
WO1999042220A1 (en) 1999-08-26
NO20004078D0 (en) 2000-08-15

Similar Documents

Publication Publication Date Title
EP1110011B1 (en) Multi-stage spur gear transmission
EP3322908B1 (en) Gearing with thrust washer for axially securing rolling bodies of a bearing
EP0383915A1 (en) Electric drive with manual doubler
EP1182027B1 (en) Drive for extrusion apparatus
EP2032264B1 (en) Helical conveyor centrifuge having a drive device
EP2525916B1 (en) Drive device in a helical conveyor centrifuge
DE69608081T2 (en) Device for the extrusion of plastomers, elastomers and similar materials with converging screws
EP1056545B1 (en) Screw-type solid bowl centrifuge with multistage planetary gear train
DE102015006023B4 (en) Gearbox with a driving shaft mounted in a flange part by means of a bearing and a coupling sleeve
EP4037839B1 (en) Solid-bowl screw centrifuge
DE102004012569A1 (en) Gearbox for a twin-screw extruder
EP4399422A1 (en) Transmission having a first planetary gear stage
DE3640947C2 (en)
EP3833486B1 (en) Solid bowl screw centrifuge
DE60115283T2 (en) MULTI-STAGE PLANET SUBSTATION GEAR
DE60208666T2 (en) DECANTER CENTRIFUGE WITH A TRANSMISSION MOUNTED ON THE DRUM
EP0432349A2 (en) Transmission
EP1701833A1 (en) Directly driven extruder with an adapter
DE102019110996A1 (en) Solid bowl screw centrifuge
DE4339029C2 (en) Liquid ring machine
EP1870163B1 (en) Helical conveyor centrifuge having direct drive by asynchronous motor
DE4235040A1 (en) Reduction gearing for electric motor or IC engine - uses radial and axial forces within gearing mechanism to reduce bearing and friction forces for input shaft
DE102024104576A1 (en) Gear motor, which comprises a gearbox, an adapter and an electric motor
DE102006042212A1 (en) Gear for a motor vehicle comprises a first gearwheel arranged on a first gear shaft, meshing with a second gearwheel, and supported without meshing for axial force support in the axial direction on a third gearwheel
DE102009033259B4 (en) Gear motor kit and manufacturing process for a gear motor

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000705

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE DK FR GB IT SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 20011112

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE DK FR GB IT SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59901620

Country of ref document: DE

Date of ref document: 20020711

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020721

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

ET Fr: translation filed
PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: HILLER GMBH

Effective date: 20030301

Opponent name: FLOTTWEG GMBH & CO. KGAA

Effective date: 20030301

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: HILLER GMBH

Effective date: 20030301

Opponent name: FLOTTWEG GMBH & CO. KGAA

Effective date: 20030301

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

R26 Opposition filed (corrected)

Opponent name: HILLER GMBH

Effective date: 20030301

Opponent name: FLOTTWEG GMBH & CO. KGAA

Effective date: 20030301

PLAY Examination report in opposition despatched + time limit

Free format text: ORIGINAL CODE: EPIDOSNORE2

PLAY Examination report in opposition despatched + time limit

Free format text: ORIGINAL CODE: EPIDOSNORE2

PLAH Information related to despatch of examination report in opposition + time limit modified

Free format text: ORIGINAL CODE: EPIDOSCORE2

PLAH Information related to despatch of examination report in opposition + time limit modified

Free format text: ORIGINAL CODE: EPIDOSCORE2

PLBC Reply to examination report in opposition received

Free format text: ORIGINAL CODE: EPIDOSNORE3

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20120801

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): DE DK FR GB IT SE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 59901620

Country of ref document: DE

Effective date: 20120801

REG Reference to a national code

Ref country code: DK

Ref legal event code: T4

REG Reference to a national code

Ref country code: SE

Ref legal event code: RPEO

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20160129

Year of fee payment: 18

Ref country code: DE

Payment date: 20160201

Year of fee payment: 18

Ref country code: DK

Payment date: 20160127

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20160127

Year of fee payment: 18

Ref country code: FR

Payment date: 20160128

Year of fee payment: 18

Ref country code: SE

Payment date: 20160127

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59901620

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20170131

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170107

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170107

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170108

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170107