DE10243675B3 - Eccentric screw pump with exchange unit - Google Patents

Eccentric screw pump with exchange unit Download PDF

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Publication number
DE10243675B3
DE10243675B3 DE10243675A DE10243675A DE10243675B3 DE 10243675 B3 DE10243675 B3 DE 10243675B3 DE 10243675 A DE10243675 A DE 10243675A DE 10243675 A DE10243675 A DE 10243675A DE 10243675 B3 DE10243675 B3 DE 10243675B3
Authority
DE
Germany
Prior art keywords
eccentric screw
screw pump
rotor
stator
drive shaft
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.)
Revoked
Application number
DE10243675A
Other languages
German (de)
Inventor
Reinhard Denk
Christoph Böhnisch
Michael Groth
Franz Kneidl
Johann Kreidl
Thomas Ribbe
Michael Robby
Robert Kurz
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.)
Netzsch Pumpen and Systeme GmbH
Original Assignee
Netzsch Pumpen and Systeme 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=29796637&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE10243675(B3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Netzsch Pumpen and Systeme GmbH filed Critical Netzsch Pumpen and Systeme GmbH
Priority to DE10243675A priority Critical patent/DE10243675B3/en
Priority to EP03020133A priority patent/EP1400693A3/en
Priority to US10/666,591 priority patent/US20040057846A1/en
Application granted granted Critical
Publication of DE10243675B3 publication Critical patent/DE10243675B3/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/80—Repairing methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

Die Erfindung bezieht sich auf eine Exzenterschneckenpumpe. Rotor und Stator einer Exzenterschneckenpumpe unterliegen aufgrund ihres Kontaktes mit dem zu fördernden Produkt einem ständigen Verschleißvorgang. Da beim Austausch entsprechender Verschleißteile Ausfallzeiten entstehen bzw. Spezialwerkzeuge notwendig sind, verfügt die erfindungsgemäße Exzenterschneckenpumpe über eine Austauscheinheit zu der insbesondere der Stator, der Rotor, die Welle, die Antriebswelle und die Dichtung gehören.The invention relates to an eccentric screw pump. The rotor and stator of an eccentric screw pump are subject to constant wear due to their contact with the product to be conveyed. Since downtimes occur when replacing corresponding wear parts or special tools are necessary, the eccentric screw pump according to the invention has an exchange unit to which in particular the stator, the rotor, the shaft, the drive shaft and the seal belong.

Description

Die Erfindung betrifft eine Exzenterschneckenpumpe mit einem schneckenförmigen Rotor der in einer gewendelten Statorkammer rotiert und einer Antriebswelle die den Rotor mit einem Antrieb verbindet.The invention relates to an eccentric screw pump with a snail-shaped Rotor that rotates in a coiled stator chamber and a drive shaft that connects the rotor to a drive.

Beim allgemein bekannten Stand der Technik entsprechend Prospekt NETZSCH The heart of your process Seiten 18 und 19 und EP 0 657 649 A1 , DE 24 58 839 A1 sind die Rotoren bei Schneckenpumpen über eine Gelenkverbindung mit dem Getriebe bzw. Antrieb verbunden. Als Gelenkverbindung kommen Bolzengelenke, Zapfenkreuzgelenke, Bogenzahngelenke und Biegestäbe zum Einsatz. Beim Austausch eines Rotors oder der Gelenkverbindung sind stets zeitaufwendige Montagearbeiten zu verrichten.In the generally known state of the art according to NETZSCH brochure The heart of your process pages 18 and 19 and EP 0 657 649 A1 . DE 24 58 839 A1 the rotors in worm pumps are connected to the gearbox or drive via an articulated connection. Bolt joints, universal joints, curved tooth joints and bending rods are used as the joint connection. When replacing a rotor or the articulated connection, time-consuming assembly work must always be carried out.

Aufgabe der Erfindung ist es demnach, die Montagezeit beim Austausch von Rotor-Stator- oder Gelenkteilen, insbesondere beim Kunden, zu reduzieren.The object of the invention is therefore the assembly time when replacing rotor stator or joint parts, in particular at the customer.

Erfindungsgemäß wird die Aufgabe durch die Merkmale des Anspruchs 1 gelöst.According to the invention, the object is achieved by Features of claim 1 solved.

Vorteilhafte Weiterbildungen der Erfindung gehen aus den Merkmalen der Unteransprüche hervor.Advantageous further developments of Invention emerge from the features of the subclaims.

Insbesondere bei Reparaturarbeiten beim und durch den Kunden ist erwünscht, den Austausch von Teilen in kürzester Zeit mit möglichst einfachen Mitteln zu bewerkstelligen. Hierzu wird erfindungsgemäß vorgeschlagen, daß die Antriebswelle über eine lösbare Verbindung in Form einer Schraube einem Klemmstück oder vergleichbaren Elementen mit dem Antrieb oder dessen zwischengeschaltetem Getriebe verbunden ist.Especially for repair work with and by the customer it is desirable to exchange parts in the shortest Time with if possible simple means to accomplish. For this purpose, the invention proposes that the Drive shaft over a detachable Connection in the form of a screw, a clamping piece or comparable elements connected to the drive or its intermediate gear is.

Da der Stator in vielen Fällen zwischen zwei seitlichen Flanschen mittels einer Zugankeranordnung verspannt ist, kann es erfindungsgemäß von Vorteil sein, wenn das Pumpengehäuse geteilt und dessen Teile mittels einer Schnellspannvorrichtung oder Schnellkupplung miteinander verbunden sind. In dieser erfindungsgemäßen Gestaltung wird der komplette Stator und ein Teil des Pumpengehäuses zusammen mit der Antriebswelle, den Gelenken bzw. der biegeelastischen Welle und der Dichtung entfernt und ausgetauscht.Because the stator in many cases between braced two side flanges by means of a tie rod arrangement it can be advantageous according to the invention be when the pump housing divided and its parts using a quick release device or Quick coupling are connected to each other. In this design according to the invention the entire stator and part of the pump housing are combined with the drive shaft, the joints or the flexible shaft and the seal removed and replaced.

Entsprechend einer weiteren vorteilhaften Ausgestaltung der Erfindung ist der Einsatz eines Getriebes (z.B. Flachgetriebes) vorgesehen. Das Getriebe verfügt über eine Hohlwelle. In dieser Hohlwelle sitzt die im Pumpengehäuse gelagerte und abgedichtete Antriebswelle für den Rotor. Durch eine Schraube ist die Antriebswelle mit der Hohlwelle axial verspannt. Die Drehmomentübertragung erfolgt durch eine Wellen-Naben-Verbindung z.B. einer Passfeder.According to a further advantageous embodiment the invention is the use of a gear (e.g. parallel shaft gear) intended. The gearbox has one Hollow shaft. The bearing in the pump housing sits in this hollow shaft and sealed drive shaft for the rotor. The drive shaft is connected to the hollow shaft by a screw axially clamped. The torque transmission done by a shaft-hub connection e.g. a key.

Ein Ausführungsbeispiel der Erfindung geht aus der 1 hervor.An embodiment of the invention is based on the 1 out.

1 zeigt eine Exzenterschneckenpumpe 10 vom Moineau-Typ mit einem Antrieb 12 und einem Getriebe 14, das über eine Hohlwelle mit einer Antriebswelle 16 in Verbindung steht. 1 shows an eccentric screw pump 10 Moineau type with a drive 12 and a gear 14 which is via a hollow shaft with a drive shaft 16 communicates.

Die Antriebswelle 16 ist mit einer Dichtung 18 versehen, die das Eindringen von Produkt in den Bereich der Lagerung 20 verhindert. Die biegeelastische Welle 22 und die Antriebswelle 16 sind durch eine Schraub-/Schrumpf- oder Klebeverbindung drehfest miteinander fixiert. Das Pumpengehäuse 26 verfügt über einen Einlaufstutzen 28 über den das Produkt in die Exzenterschneckenpumpe 10 gesaugt wird. Durch das Lösen der Schraube 30 und Öffnen der Schnellspannvorrichtung 32 läßt sich der gesamte Stator 38 gleichzeitig mit dem Endstutzen 34 mit dem Rotor 36, der biegeelastischen Welle 22, der Antriebswelle 16 und der Dichtung 18 als eine Einheit vom Pumpengehäuse 26 und Antrieb 12 abziehen und gegen eine neue Austausch-Einheit ersetzen.The drive shaft 16 is with a seal 18 provided that the penetration of product into the area of storage 20 prevented. The flexible wave 22 and the drive shaft 16 are fixed to each other by a screw / shrink or adhesive connection. The pump housing 26 has an inlet connection 28 through which the product enters the eccentric screw pump 10 is sucked. By loosening the screw 30 and opening the quick release device 32 the entire stator 38 at the same time as the end connector 34 with the rotor 36 , the flexurally elastic wave 22 , the drive shaft 16 and the seal 18 as a unit from the pump housing 26 and drive 12 pull off and replace with a new exchange unit.

1010
ExzenterschneckenpumpeCavity Pump
1212
Antriebdrive
1414
Getriebetransmission
1616
Antriebswelledrive shaft
1818
Dichtungpoetry
2020
Lagerungstorage
2222
Wellewave
2626
Pumpengehäusepump housing
2828
Einlaufstutzenflowguide
3030
Schraubescrew
3232
SchnellspannvorrichtungQuick clamping device
3434
Endstutzenend stub
3636
Rotorrotor
3838
Statorstator
4040
Zwischenrohrintermediate pipe

Claims (3)

Exzenterschneckenpumpe (10) mit einem schneckenförmigen Rotor (36), der in einer gewendelten Statorkammer rotiert und einer Antriebswelle (16), die den Rotor (36) mit einem Antrieb (12) verbindet, dadurch gekennzeichnet, daß die Antriebswelle (16) über eine lösbare Verbindung mit einem Antrieb (12) oder einem Getriebe (14) verbunden ist und nach dem Lösen der Verbindung als Austauschelement gemeinsam mit dem Rotor (36), dem Stator (38), der Dichtung (18) und gegebenenfalls einem Teil des Pumpengehäuses (26) austauschbar ist.Eccentric screw pump ( 10 ) with a helical rotor ( 36 ) which rotates in a coiled stator chamber and a drive shaft ( 16 ) which the rotor ( 36 ) with a drive ( 12 ) connects, characterized in that the drive shaft ( 16 ) via a detachable connection to a drive ( 12 ) or a gearbox ( 14 ) and after loosening the connection as an exchange element together with the rotor ( 36 ), the stator ( 38 ), the seal ( 18 ) and possibly part of the pump housing ( 26 ) is interchangeable. Exzenterschneckenpumpe nach Anspruch 1, dadurch gekennzeichnet, daß der Stator (38) sowohl fest mit einem ersten Teil des Pumpengehäuses (26) als auch lösbar durch eine Schnellspannvorrichtung (32) mit dem zweiten Teil des Pumpengehäuses verbunden ist.Eccentric screw pump according to claim 1, characterized in that the stator ( 38 ) both fixed to a first part of the pump housing ( 26 ) as well as detachable with a quick release device 32 ) is connected to the second part of the pump housing. Exzenterschneckenpumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Getriebe (14) eine Hohlwelle aufweist mit der die Antriebswelle (16) für den Rotor (36) mit einer Schraube (30) verspannt ist.Eccentric screw pump according to claim 1 or 2, characterized in that the gear ( 14 ) has a hollow shaft with which the drive shaft ( 16 ) for the rotor ( 36 ) with a screw ( 30 ) is tense.
DE10243675A 2002-09-20 2002-09-20 Eccentric screw pump with exchange unit Revoked DE10243675B3 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE10243675A DE10243675B3 (en) 2002-09-20 2002-09-20 Eccentric screw pump with exchange unit
EP03020133A EP1400693A3 (en) 2002-09-20 2003-09-05 Moineau-type pump with modular replacement unit
US10/666,591 US20040057846A1 (en) 2002-09-20 2003-09-19 Eccentric screw-type pump with spare unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10243675A DE10243675B3 (en) 2002-09-20 2002-09-20 Eccentric screw pump with exchange unit

Publications (1)

Publication Number Publication Date
DE10243675B3 true DE10243675B3 (en) 2004-01-29

Family

ID=29796637

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10243675A Revoked DE10243675B3 (en) 2002-09-20 2002-09-20 Eccentric screw pump with exchange unit

Country Status (3)

Country Link
US (1) US20040057846A1 (en)
EP (1) EP1400693A3 (en)
DE (1) DE10243675B3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004040720A1 (en) * 2004-08-20 2006-02-23 Knoll Maschinenbau Gmbh Eccentric screw pump for conveying e.g. liquid, has pump housing consisting of different housing units such as stator and suction housing, and separate fastening unit is supported at peripheral side of stator in axial direction

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO327505B1 (en) 2007-09-11 2009-07-27 Agr Subsea As Eccentric screw pump adapted for pumping of compressible fluids
NO327503B1 (en) 2007-09-20 2009-07-27 Agr Subsea As Eccentric screw pump with multiple pump sections
NO329713B1 (en) 2008-08-21 2010-12-06 Agr Subsea As Eccentric screw pump with an inner and an outer rotor
NO329714B1 (en) 2008-08-21 2010-12-06 Agr Subsea As External rotor in eccentric screw pump with an inner and an outer rotor
JP6761980B2 (en) * 2015-02-03 2020-09-30 兵神装備株式会社 Uniaxial eccentric screw pump

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2458839A1 (en) * 1974-12-12 1976-06-16 Flux Geraete Gmbh Spiral transport pump with eccentric rotor - has drive shaft with flexible plastics coated section to accommodate sideways movement of rotor
EP0657649A1 (en) * 1993-12-09 1995-06-14 Mono Pumps Limited Rotor and flexible drive shaft assembly

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527673A (en) * 1947-02-28 1950-10-31 Robbins & Myers Internal helical gear pump
US3324801A (en) * 1965-08-17 1967-06-13 Fernholtz Mfg Company Combined flexible seal and agitator for pumps
US3512904A (en) * 1968-05-24 1970-05-19 Clifford H Allen Progressing cavity helical pump
US3539279A (en) * 1968-09-23 1970-11-10 H A Rider & Sons Tubular pump
JPH0777172A (en) * 1993-09-03 1995-03-20 Heishin Sobi Kk Uniaxial eccentric screw pump
US5769618A (en) * 1995-09-25 1998-06-23 Heishin Sobi Kabushiki Kaisha Uniaxial eccentric screw pump having a flexible plastic shaft
DE19804259A1 (en) * 1998-02-04 1999-08-12 Artemis Kautschuk Kunststoff Elastomer stator for eccentric screw pumps
DE19813999C1 (en) * 1998-03-28 1999-11-25 Seepex Seeberger Gmbh & Co Eccentric screw pump
EP0953769B1 (en) * 1998-04-27 2004-01-07 Allweiler AG Eccentric screw pump
JP2001271764A (en) * 2000-03-27 2001-10-05 Shin Nippon Machinery Co Ltd Single shaft eccentric screw pump
DE10022631C2 (en) * 2000-05-11 2002-08-08 Gruen Pumpen Gmbh Eccentric barrel pump
DE10118785A1 (en) * 2001-04-17 2002-10-24 Viscotec Pumpen Und Dosiertech Eccentric screw conveyor pump has at least one screw conveyor in region of intermediate cavity

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2458839A1 (en) * 1974-12-12 1976-06-16 Flux Geraete Gmbh Spiral transport pump with eccentric rotor - has drive shaft with flexible plastics coated section to accommodate sideways movement of rotor
EP0657649A1 (en) * 1993-12-09 1995-06-14 Mono Pumps Limited Rotor and flexible drive shaft assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Prospekt der Fa. Netzsch: The heart of your process, S. 18 u. 19, 04/2002 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004040720A1 (en) * 2004-08-20 2006-02-23 Knoll Maschinenbau Gmbh Eccentric screw pump for conveying e.g. liquid, has pump housing consisting of different housing units such as stator and suction housing, and separate fastening unit is supported at peripheral side of stator in axial direction
DE102004040720B4 (en) * 2004-08-20 2015-11-26 Knoll Maschinenbau Gmbh Cavity Pump

Also Published As

Publication number Publication date
EP1400693A3 (en) 2006-03-01
US20040057846A1 (en) 2004-03-25
EP1400693A2 (en) 2004-03-24

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Date Code Title Description
8100 Publication of patent without earlier publication of application
8363 Opposition against the patent
8331 Complete revocation