DE3718560A1 - DRY RUNNING ROLLER BEARINGS - Google Patents

DRY RUNNING ROLLER BEARINGS

Info

Publication number
DE3718560A1
DE3718560A1 DE19873718560 DE3718560A DE3718560A1 DE 3718560 A1 DE3718560 A1 DE 3718560A1 DE 19873718560 DE19873718560 DE 19873718560 DE 3718560 A DE3718560 A DE 3718560A DE 3718560 A1 DE3718560 A1 DE 3718560A1
Authority
DE
Germany
Prior art keywords
pump
roller bearings
rotor
running roller
bearings
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
DE19873718560
Other languages
German (de)
Inventor
Lutz Dipl Ing Lorenz
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.)
LORENZ, LUTZ, DIPL.-ING., 4600 DORTMUND, DE
Original Assignee
Uhde 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
Application filed by Uhde GmbH filed Critical Uhde GmbH
Priority to DE19873718560 priority Critical patent/DE3718560A1/en
Priority to CH2124/88A priority patent/CH676624A5/de
Priority to GB08813098A priority patent/GB2206157A/en
Publication of DE3718560A1 publication Critical patent/DE3718560A1/en
Ceased legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/04Shafts or bearings, or assemblies thereof
    • F04D29/046Bearings
    • F04D29/049Roller bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/04Shafts or bearings, or assemblies thereof
    • F04D29/046Bearings
    • F04D29/0465Ceramic bearing designs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54Systems consisting of a plurality of bearings with rolling friction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2206/00Materials with ceramics, cermets, hard carbon or similar non-metallic hard materials as main constituents
    • F16C2206/40Ceramics, e.g. carbides, nitrides, oxides, borides of a metal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00Engines or pumps
    • F16C2360/44Centrifugal pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/32Balls
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/66Special parts or details in view of lubrication
    • F16C33/6637Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6688Lubricant compositions or properties, e.g. viscosity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

In a hermetically-encased gap tube motor pump 1 which is driven by permanent-magnet or electro-magnetic coupling through a gap tube, satisfactory mounting of the rotor of the pump is ensured even under difficult operating conditions in that the mounting of the rotor 4 of the pump is formed from rolling bearings 5 and 6 made from ceramics material that can operate dry. <IMAGE>

Description

Die Erfindung betrifft eine Pumpe, insbesondere Spaltrohr­ motorpumpe, die durch permanent- oder elektromagnetische Kupplung hindurch angetrieben wird.The invention relates to a pump, in particular a can motor pump by permanent or electromagnetic Coupling is driven through.

Hermetische Pumpen zeichnen sich durch absolute Dichtheit des Gehäuses aus, d. h. weder äußere Medien können in die Pumpe eindringen, noch kann das innere, zu transportieren­ de Fluid, abgesehen vom Durchströmen der Pumpenaustritts­ öffnung, nach außen gelangen. Derartige Pumpen werden zum Transport aller Medien eingesetzt, die die Umwelt gefähr­ den oder durch dieselbe gefährdet sind. Insbesondere flüs­ sige Gase werden mit solchen Pumpen befördert. Zur Lage­ rung des Läufers dieser Pumpen werden Gleitlager einge­ setzt. Die Schmierung der Gleitlager erfolgt durch das zu transportierende Fluid selbst oder ein zusätzliches Hilfs­ medium. In der Anlauf- oder Auslaufphase der Pumpe und in nicht dem Auslegungspunkt entsprechenden Betriebsbereichen kommt es zu unmittelbarer Berührung der Lagerschalen und von Läuferteilen mit dem Gehäuse. Diese direkte Berührung führt auf Dauer zu Lagerschäden oder im Extremfall sogar zur Zerstörung der Pumpe. Es hat sich herausgestellt, daß gerade Flüssiggase besonders ungeeignet zur Schmierung von Gleitlagern in den An- und Auslaufphasen sind. Hermetic pumps are characterized by absolute tightness the housing, d. H. neither external media can enter the Pump can penetrate, yet the interior can be transported de fluid, apart from flowing through the pump outlet opening, get outside. Such pumps become Transport of all media used that endanger the environment who are endangered by or by the same. In particular, rivers Such gases are transported with such pumps. The location The bearings of these pumps are fitted with plain bearings puts. The sliding bearings are lubricated by the transporting fluid itself or an additional auxiliary medium. In the start-up or run-down phase of the pump and in Operating areas not corresponding to the design point there is direct contact with the bearing shells and of rotor parts with the housing. That direct touch leads to long-term storage damage or in extreme cases even to destroy the pump. It has been found that Liquid gases in particular are particularly unsuitable for the lubrication of Plain bearings are in the start-up and run-down phases.  

Es ist nun bekannt, je nach Einsatzfall aufwendige Tempera­ tur- und Lagerüberwachungssysteme einzusetzen. Derartige Überwachungssysteme sind im Vergleich zur Pumpe so teuer, daß ihr Einsatz aus wirtschaftlichen Gründen kaum vertret­ bar ist.It is now known, depending on the application, complex tempera to use door and warehouse monitoring systems. Such Monitoring systems are so expensive compared to the pump that their use hardly represents economic reasons is cash.

Aufgabe der Erfindung ist deshalb die Schaffung einer Lö­ sung, die eine einwandfreie Lagerung des Läufers herme­ tisch gekapselter Pumpen auch unter schwierigen Betriebsbe­ dingungen gewährleistet.The object of the invention is therefore to create a Lö solution that requires the rotor to be properly supported table-top pumps even under difficult operating conditions conditions guaranteed.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Lagerung des Läufers der Pumpe aus trockenlauffähigen Wälz­ lagern gebildet ist. Auf diese Weise wird der Läufer der Pumpe in einer definierten Lage gehalten, so daß Anlauf- und Auslaufphasen vollkommen entfallen. Deshalb ist eine Lagerüberwachung überflüssig oder kann sehr einfach (z. B. mittels Stoßwellenanalyse) ausgeführt werden.This object is achieved in that the Storage of the rotor of the pump from dry-running roller store is formed. In this way the runner becomes the Pump held in a defined position so that start-up and phase-out phases are completely eliminated. That is why Warehouse monitoring is superfluous or can be done very easily (e.g. using shock wave analysis).

Es ist besonders vorteilhaft, daß die Wälzlager aus Kera­ mik bestehen. Keramische Werkstoffe sind zum Einsatz auch bei sehr hohen Temperaturen geeignet, so daß bei kerami­ schen Wälzlagern auch Trockenlauf des Lagers möglich ist, ohne daß Lagerschäden auftreten.It is particularly advantageous that the roller bearings made of Kera mic exist. Ceramic materials are also used suitable at very high temperatures, so that with kerami rolling bearings, dry running of the bearing is also possible, without bearing damage.

Die Erfindung sieht ferner einen Einsatz der erfindungsge­ mäßen Pumpe im kerntechnischen Bereich vor. In diesem Be­ reich ist die Verwendung hermetischer Pumpen besonders ge­ eignet.The invention further provides an application of the fiction pump in the nuclear area. In this Be  the use of hermetic pumps is particularly rich is suitable.

Außerdem sieht die Erfindung einen Einsatz der Pumpe zum Transport von Flüssiggasen vor. Da Flüssiggase ausgespro­ chen ungeeignet zur Schmierung von Gleitlagern sind, ist die Lagerung mit trockenlauffähigen Wälzlagern gerade beim Transport dieser Stoffe besonders vorteilhaft.The invention also provides use of the pump Transport of liquid gases before. Because liquid gases Chen are unsuitable for the lubrication of plain bearings the storage with dry-running roller bearings especially at Transport of these substances is particularly advantageous.

Weiterhin ist ein Einsatz der Pumpe zum Transport umweltge­ fährdender und umweltgefährdeter Flüssigkeiten vorgesehen.Furthermore, using the pump for transport is environmentally friendly hazardous and environmentally hazardous liquids.

Die Erfindung ist anhand der Zeichnung beispielsweise nä­ her erläutert, diese zeigt inThe invention is based on the drawing, for example explained here, which shows in

Fig. 1 in einer Schnittdarstellung eine hermetische Pumpe der betreffenden Art. Fig. 1 is a sectional view of a hermetic pump of the type in question.

Eine hermetische Pumpe 1 weist eine Eintrittsöffnung 2 und eine Austrittsöffnung 3 auf, die an entsprechenden, in der Zeichnung nicht dargestellten, Rohrleitungen oder dgl. an­ geschlossen sind. Ein Läufer 4 pumpt das zu fördernde Flu­ id. Dieser Läufer 4 weist eine Lagerung mittels Wälzlagern 5 und 6 auf. Die Schmierung der Lager erfolgt durch das zu transportierende Fluid selbst, das bevorzugt durch eine Bohrung 7 zu den Lagern 5 und 6 gelangt. Die Wälzlager 5 und 6 bestehen vorteilhaft aus keramischen Materialien, so daß auch in der Anlauf- und Auslaufphase der Pumpe bei ge­ ringerer Schmierwirkung durch das zu transportierende Flu­ id keine Lagerschäden auftreten.A hermetic pump 1 has an inlet opening 2 and an outlet opening 3 , which are closed at corresponding pipelines or the like, not shown in the drawing. A rotor 4 pumps the fluid to be conveyed. This rotor 4 has a bearing by means of roller bearings 5 and 6 . The bearings are lubricated by the fluid to be transported itself, which preferably reaches the bearings 5 and 6 through a bore 7 . The roller bearings 5 and 6 are advantageously made of ceramic materials, so that no bearing damage occurs even in the start-up and run-down phase of the pump with a lower lubricating effect due to the fluid to be transported.

Natürlich ist die Erfindung nicht auf hermetische Pumpen mit Wälzlagern aus keramischen Werkstoffen beschränkt, so sind auch andere trockenlauffähige Lagerwerkstoffe zum Einsatz geeignet.Of course, the invention is not related to hermetic pumps limited with roller bearings made of ceramic materials, so are other dry-running bearing materials for Suitable for use.

Claims (5)

1. Pumpe, insbesondere Spaltrohrmotorpumpe, die durch perma­ nent- oder elektromagnetische Kupplung durch ein Spaltrohr hindurch angetrieben wird, dadurch gekennzeichnet, daß die Lagerung des Läufers der Pumpe aus trockenlauffähi­ gen Wälzlagern gebildet ist.1. Pump, in particular canned motor pump, which is driven by permanent or electromagnetic coupling through a canned tube, characterized in that the bearing of the rotor of the pump is formed from roller bearings capable of dry-running. 2. Pumpe nach Anspruch 1, dadurch gekennzeichnet, daß die Wälzlager aus Keramik bestehen.2. Pump according to claim 1, characterized, that the roller bearings are made of ceramic. 3. Verwendung der Pumpe nach Anspruch 1 oder 2, gekennzeichnet durch einen Einsatz der Pumpe im kerntechnischen Bereich. 3. Use of the pump according to claim 1 or 2, marked by use of the pump in the nuclear field.   4. Verwendung der Pumpe nach Anspruch 1 oder 2, gekennzeichnet durch einen Einsatz der Pumpe zum Transport von Flüssiggasen.4. Use of the pump according to claim 1 or 2, marked by use of the pump to transport liquid gases. 5. Verwendung der Pumpe nach Anspruch 1 oder 2, gekennzeichnet durch einen Einsatz der Pumpe zum Transport von umweltgefährden­ den und umweltgefährdeten Flüssigkeiten.5. Use of the pump according to claim 1 or 2, marked by use of the pump for the transport of environmentally hazardous the and environmentally hazardous liquids.
DE19873718560 1987-06-03 1987-06-03 DRY RUNNING ROLLER BEARINGS Ceased DE3718560A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19873718560 DE3718560A1 (en) 1987-06-03 1987-06-03 DRY RUNNING ROLLER BEARINGS
CH2124/88A CH676624A5 (en) 1987-06-03 1988-06-03
GB08813098A GB2206157A (en) 1987-06-03 1988-06-03 Improvements in and relating to pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873718560 DE3718560A1 (en) 1987-06-03 1987-06-03 DRY RUNNING ROLLER BEARINGS

Publications (1)

Publication Number Publication Date
DE3718560A1 true DE3718560A1 (en) 1988-12-22

Family

ID=6328939

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873718560 Ceased DE3718560A1 (en) 1987-06-03 1987-06-03 DRY RUNNING ROLLER BEARINGS

Country Status (3)

Country Link
CH (1) CH676624A5 (en)
DE (1) DE3718560A1 (en)
GB (1) GB2206157A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412476A2 (en) * 1989-08-11 1991-02-13 Leybold Aktiengesellschaft Vacuum pump with rotor and rotor bearings running under vacuum
WO2001002734A1 (en) * 1999-07-06 2001-01-11 Flowserve Management Company Pump assembly including integrated adapter

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5795138A (en) * 1992-09-10 1998-08-18 Gozdawa; Richard Compressor
CH710410A1 (en) * 2014-11-26 2016-05-31 Fives Cryomec Ag Rotary pump for cryogenic fluids.
CN105508259A (en) * 2015-12-18 2016-04-20 安徽南方化工泵业有限公司 Non-load magnetic drive pump
CH714176A1 (en) * 2017-09-19 2019-03-29 Fives Cryomec Ag Centrifugal pump for cryogenic fluids.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8607609U1 (en) * 1986-03-20 1986-06-26 HOMA Pumpenfabrik GmbH, 5206 Neunkirchen-Seelscheid Centrifugal pump

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB788792A (en) * 1953-11-09 1958-01-08 Amag Hilpert Pegnitzhutte A G Improvements in pumps for fluids
GB922319A (en) * 1960-03-28 1963-03-27 Klaus Franz Centrifugal pump
GB1351826A (en) * 1971-11-29 1974-05-01 Carter Co J C Lubricating cooling and balancing of pump and motor units
DE2534740C3 (en) * 1975-08-04 1983-02-03 Franz 4630 Bochum Klaus Canned centrifugal pump
CH624741A5 (en) * 1977-01-21 1981-08-14 Suisse Horlogerie Rech Lab Precision rolling bearing
JPS60208626A (en) * 1984-03-30 1985-10-21 Koyo Seiko Co Ltd Rotary member supporting holder used under corrosive environment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8607609U1 (en) * 1986-03-20 1986-06-26 HOMA Pumpenfabrik GmbH, 5206 Neunkirchen-Seelscheid Centrifugal pump

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Internationale Patenklassifikation, U. Ausgabe, 1984, Sektion F, Carl Heymanns Verlag KG, München/Köln/Berlin/Bonn, S.54 *
US-Z.: "Machine Design", 8.3.79, S.55-59 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412476A2 (en) * 1989-08-11 1991-02-13 Leybold Aktiengesellschaft Vacuum pump with rotor and rotor bearings running under vacuum
EP0412476A3 (en) * 1989-08-11 1991-11-21 Leybold Aktiengesellschaft Vacuum pump with rotor and rotor bearings running under vacuum
WO2001002734A1 (en) * 1999-07-06 2001-01-11 Flowserve Management Company Pump assembly including integrated adapter
US6196813B1 (en) 1999-07-06 2001-03-06 Flowserve Management Company Pump assembly including integrated adapter

Also Published As

Publication number Publication date
GB2206157A (en) 1988-12-29
CH676624A5 (en) 1991-02-15
GB8813098D0 (en) 1988-07-06

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8127 New person/name/address of the applicant

Owner name: LORENZ, LUTZ, DIPL.-ING., 4600 DORTMUND, DE

8131 Rejection