EP0549579A1 - Rotary pump - Google Patents

Rotary pump

Info

Publication number
EP0549579A1
EP0549579A1 EP91902679A EP91902679A EP0549579A1 EP 0549579 A1 EP0549579 A1 EP 0549579A1 EP 91902679 A EP91902679 A EP 91902679A EP 91902679 A EP91902679 A EP 91902679A EP 0549579 A1 EP0549579 A1 EP 0549579A1
Authority
EP
European Patent Office
Prior art keywords
pump
housing
bearing
rotary pump
rotary
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.)
Withdrawn
Application number
EP91902679A
Other languages
German (de)
French (fr)
Inventor
Andreas Treugut
Otto Michael Dr.-Ing. Militzer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0549579A1 publication Critical patent/EP0549579A1/en
Withdrawn legal-status Critical Current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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/059—Roller bearings
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/025—Lubrication; Lubricant separation using a lubricant pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/163—Combinations of two or more pumps ; Producing two or more separate gas flows driven by a common gearing arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/049—Roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/36—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by pumping action of the member to be lubricated or of a shaft of the machine; Centrifugal lubrication

Definitions

  • the invention relates to a rotary pump for gearboxes and units for conveying liquid or gaseous media, which has an independent housing with channels for inlet and outlet and a one-part or multi-part inner-axis rotor unit.
  • hydrostatic positive displacement pumps of various types, for example gear pumps, peristaltic pumps, piston pumps, etc., are known for this task. They enable high pressures and forced circulation.
  • centrifugal hydrodynamic rotary pumps can be used.
  • Types are known in which a compact assignment of the pump is achieved by including existing components of the gearbox or aggregate in the function of the pump.
  • the end of an aggregate shaft is used as a driving bracket for the pump rotor (DE 30 22 419).
  • the unit housing serves equally as a pump housing and as a support for the shaft bearing for the pump and for the unit (DE-OS 34 17 307).
  • a pump is connected to a roller bearing to form a structural unit (G 81 26 303).
  • the bearing outer ring forms the pump housing and the bearing inner ring the driving bracket of the pump rotors.
  • the advantage of incorporating a pump with an independently required aggregate bearing, with little adaptation effort, is, however, paid for by the disadvantage of a complex special production of the roller bearings. Except for a special large series requirement, it is very expensive to combine the variety of possible storage tasks and storage sizes in this way with a pump.
  • the invention is therefore based on the object of providing a pump for gearboxes and units for conveying liquid or gaseous media which, in a simple, compact design, with minimal additional space requirement and little adaptation effort, corresponds to different tasks and structural conditions, in or on gearboxes or Aggregates can be used.
  • the invention is based on the knowledge that a pump corresponding to the task must be designed in such a way that it can be used largely in rooms or to match dimensions that are also available without a pump; that it uses existing drive options and, if possible or necessary, takes on further functions in order to keep the total number of additional components or additional machining sequences on the housings of the gears or units low.
  • a rotary pump which is arranged with an independent housing next to a shaft bearing which is independent of the pump and whose pump rotor is driven by the mounted shaft, the rotary pump having a diameter, width and fit ratio in a standardized design ⁇ , which are adapted to those of rolling bearings and the housing of the rotary pump is optionally designed as a uniform sleeve-shaped component or as a sleeve-shaped component that has a cover-shaped part on the side facing away from the shaft bearing, which has the function of a supporting gear or unit cover with or without shaft bushing.
  • This new type of assignment and design has the advantage that suitable pump capacities can be selected and used in a standardized manner in accordance with the sizes and types of roller bearings matched to the gearbox or unit performance and tasks; comparable to the use of other standardized components assigned to the bearing sizes.
  • the rotary pump according to the invention assumes a supporting and / or positioning function for the shaft bearings arranged next to it, for example instead of a supporting bushing or, with a corresponding design, also the function of a supporting housing cover.
  • the medium can be moved through the side bearing or kept away from it by sealing elements.
  • rotary pump not only in new, but often without much effort and additional Construction volume can also be incorporated into existing gear or unit concepts.
  • both the pump and the adjacent bearing can be replaced independently of one another, so that a free, inexpensive combination of bearing and pump properties is possible in a simple manner.
  • the adapted pump construction also simplifies maintenance in the event of wear, with assembly and disassembly of the pump or bearing.
  • the outer pump contour has diameters which are adapted to those of an associated roller bearing.
  • the adaptation can mean identical dimensions or allow a slight deviation in such a way that it can be bridged with simple support sleeves, shims or the sealing washers of the pump. This has the advantage that the pumps do not have to be available in every bearing size, but rather cover selected size classes without unduly expanding the installation space or complicating the installation.
  • the pump housing is provided with a cover-shaped part on the side facing away from the shaft bearing, corresponding to an aggregate cover, the inlet and outlet can be guided through the cover part on the pump side without changing the usual cover diameters which are assigned to the bearing diameters Need to become.
  • such a pump (1) is arranged as a sleeve-shaped component next to a bearing (2), on a driving shaft (3) and in an assembly housing (4).
  • a hydrodynamic centrifugal pump is shown. It has a housing (5), a rotor (6) which is designed as an axially floating centrifugal wheel and a sealing disc (7).
  • the pump supports the lateral forces of the outer bearing ring (8) via the sealing washer (7) and the pump housing (5) against an external support ring (10). It sucks the medium through an inlet bore (11) in the unit housing (4) and through a channel (12) arranged radially in the pump housing (5) into the rotor (6).
  • the centrifugal forces push the medium through an opening (13) into an annular channel (14) and from there into the outlet channels (15) of the unit housing (4).
  • Pump (1) and bearing (2) have the same inside and outside diameter.
  • FIG. 2 shows a pump (1), the housing of which is designed as a sleeve-shaped component (5.1) which, on the side facing away from the shaft bearing (2), has a cover-shaped part (5.2) which functions as a support takes over the gear cover with a shaft bushing.
  • the rotor (6) is designed as an axially floating vane rotor, which is seated in an eccentric housing bore (19).
  • the inlet and outlet bores (20) are guided through the cover part (5.2) of the housing.
  • the part of the housing (5.1) which is adapted to the bearing diameter is used as an example in a bore in an assembly housing (4) which is somewhat larger than the bearing outer diameter.
  • the small diameter difference to the supported bearing (2) bridges the side sealing disc (7) of the pump (1).
  • 3 shows a detail from FIG. 1 with the difference that a second pump (1.2) is arranged next to the pump (1.1), the housing of which, as shown in FIG. 2, has a cover-shaped part (5.2).
  • Both pumps have identical rotors and their channels are designed such that the flow of the medium flows through both pumps in succession.
  • the series connection of the pumps increases the pump pressure and delivery rate.
  • the two rotors do not have to be of the same internal design.
  • Fig. 4 shows a section of two similar pumps (1.1 and 1.2) corresponding to Fig. 1, which are arranged next to each other in such a way that they suck through a common channel, but produce separate flow rates in parallel, which flow through the outlet channels (15.1 and 15.2 ) to get redirected.
  • the inner bearing ring (9) is firmly clamped via a shim (16), the two rotors (6) and a shaft nut (17).
  • the outer bearing ring (8) is additionally braced against a conventional bearing cover (18) via the two pump housings (5) and the sealing washers (7).
  • the inside diameter of both pumps is a little smaller than that of the bearing. The difference in diameter is bridged by the shim (16).
  • Fig. 5 shows the compact design of a pump (1), corresponding to Fig. 2, but with a different rotor and without shaft passage.
  • the pump rotor (6) is designed as a centrifugal wheel and is mounted in a floating manner, so that it is not disturbed by the shaft end tipping due to shaft deflection and possible evasion of the tapered roller bearing (22) shown.
  • the rotor (6) is driven by driver pins (21) which engage in the end of the supported shaft (3).
  • the pump is so compact that it does not take up more space than a normally used gear cover with a support collar.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne une pompe rotative (1) pour mécanismes de transmission et groupes, servant au refoulement de milieux liquides ou gazeux. La pompe présente des valeurs normalisées de diamètre, de largeur et d'ajustement, lesquels sont adaptés à ceux de paliers à roulement. Elle est disposée à côté de paliers d'arbre indépendants (2) de telle manière qu'elle fixe la position du palier et qu'elle transmet les forces de palier latéraux. L'invention concerne également différentes conceptions de la pompe, ainsi que des configurations de carter et de rotor correspondant à diverses applications.The invention relates to a rotary pump (1) for transmission mechanisms and groups, used for the delivery of liquid or gaseous media. The pump has standard values of diameter, width and adjustment, which are adapted to those of rolling bearings. It is arranged next to independent shaft bearings (2) in such a way that it fixes the position of the bearing and that it transmits the lateral bearing forces. The invention also relates to different pump designs, as well as housing and rotor configurations for various applications.

Description

otationspumpe otation pump
Die Erfindung betrifft eine Rotationspumpe für Getriebe und Aggregate, zur Förderung von flüssigen oder gasförmigen Medien, die ein eigenständiges Gehäuse mit Kanälen für Zu- und Ablauf und eine ein- oder mehrteilige innenachsige Rotoreinheit aufweist.The invention relates to a rotary pump for gearboxes and units for conveying liquid or gaseous media, which has an independent housing with channels for inlet and outlet and a one-part or multi-part inner-axis rotor unit.
Bekannt für diese Aufgabenstellung ist der Einsatz von hydro¬ statischen Verdrängerpumpen unterschiedlichster Bauarten, so beispielsweise Zahnradpumpen, Schlauchpumpen, Kolbenpumpen etc.. Sie ermöglichen hohe Drücke und Zwangsumlauf.The use of hydrostatic positive displacement pumps of various types, for example gear pumps, peristaltic pumps, piston pumps, etc., is known for this task. They enable high pressures and forced circulation.
Sind beispielsweise für Aggregateschmierung oder -kühlung keine hohen Drücke zur Förderung des Mediums erforderlich, dann können zentrifugal wirkende hydrodynamische Rotations¬ pumpen eingesetzt werden.For example, if high pressures to convey the medium are not required for unit lubrication or cooling, centrifugal hydrodynamic rotary pumps can be used.
Die Nachteile bekannter Bauarten dieser Pumpen bestehen darin, daß sie oft nur für spezielle Aufgaben konzipiert sind, oder aufwendige aggregateseitige Anschlüsse oder separate Antriebe benötigen und entsprechend großen zusätzlichen Bauraum inner- oder außerhalb der Getriebe oder Aggregate erfordern.The disadvantages of known types of these pumps are that they are often only designed for special tasks, or require complex connections on the unit side or separate drives and require a correspondingly large amount of additional installation space inside or outside the gears or units.
Es sind Bauarten bekannt, bei denen eine kompakte Zuordnung der Pumpe dadurch erreicht wird, daß vorhandene Bauteile der Getriebe oder Aggregate in die Funktion der Pumpe einbezogen werden. Beispielsweise wird das Ende einer Aggregatewelle als antreibende Halterung des Pumpenrotors genutzt (DE 30 22 419) . Oder das Aggregategehäuse dient gleichermaßen als Pumpenge- häuse und als Träger der Wellenlagerung für die Pumpe und für das Aggregat (DE-OS 34 17 307).Types are known in which a compact assignment of the pump is achieved by including existing components of the gearbox or aggregate in the function of the pump. For example, the end of an aggregate shaft is used as a driving bracket for the pump rotor (DE 30 22 419). Or the unit housing serves equally as a pump housing and as a support for the shaft bearing for the pump and for the unit (DE-OS 34 17 307).
Diese kompakten Bauformen befriedigen jedoch nicht für all¬ gemeine Anwendungen, und benötigen teilweise sehr spezielle konstruktive Anpassungen der betroffenen Aggregatebauteile. In einer bekannten, besonders kompakten Bauform ist eine Pumpe mit einem Wäl2lager zu einer konstruktiven Einheit verbunden (G 81 26 303) . Der Lageraußenring bildet zugleich das Pumpengehäuse und der Lagerinnenring die antreibende Halterung der Pumpenrotoren. Der Vorteil, bei geringem Anpa߬ aufwand, mit einer unabhängig erforderlichen Aggregatelager¬ ung auch eine Pumpe einzubringen, wird hierbei jedoch durch den Nachteil einer aufwendigen Sonderfertigung der Wälzlager erkauft. Außer für einen speziellen Großserienbedarf wird es sehr teuer, die Vielfalt der möglichen Lagerungsaufgaben und Lagergrößen in dieser Weise mit einer Pumpe zu kombinieren.However, these compact designs are unsatisfactory for general applications and sometimes require very special structural adaptations of the unit components concerned. In a known, particularly compact design, a pump is connected to a roller bearing to form a structural unit (G 81 26 303). The bearing outer ring forms the pump housing and the bearing inner ring the driving bracket of the pump rotors. The advantage of incorporating a pump with an independently required aggregate bearing, with little adaptation effort, is, however, paid for by the disadvantage of a complex special production of the roller bearings. Except for a special large series requirement, it is very expensive to combine the variety of possible storage tasks and storage sizes in this way with a pump.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Pumpe für Getriebe und Aggregate zur Förderung von flüssigen oder gasförmigen Medien zu schaffen, die in einfacher, kompakter Bauweise, mit minimalem zusätzlichen Raumbedarf und geringem Anpassungsaufwand unterschiedlichen Aufgabenstellungen und konstruktiven Gegebenheiten entsprechend, in oder an Getrieben bzw. Aggregaten eingesetzt werden kann.The invention is therefore based on the object of providing a pump for gearboxes and units for conveying liquid or gaseous media which, in a simple, compact design, with minimal additional space requirement and little adaptation effort, corresponds to different tasks and structural conditions, in or on gearboxes or Aggregates can be used.
Diese Aufgabenstellung wird erfindungsgemäß mit einer Rotationspumpe nach Anspruch 1 gelöst.This task is solved according to the invention with a rotary pump according to claim 1.
Vorteilhafte Anordnungen oder Ausgestaltungen sind in den Unteransprüchen genannt.Advantageous arrangements or configurations are mentioned in the subclaims.
Die Erfindung geht dabei von der Erkenntnis aus, daß eine der Aufgabenstellung entsprechende Pumpe derart gestaltet sein muß, daß sie weitestgehend in Räumen oder passend zu Abmes¬ sungen eingesetzt werden kann, die auch ohne Pumpe vorhanden sind; daß sie vorhandene Antriebsmöglichkeiten nutzt und wenn möglich oder erforderlich weitere Funktionen übernimmt, um die Gesamtzahl von zusätzlichen Bauteilen oder zusätzlichen Bearbeitungsfolgen an den Gehäusen der Getriebe oder Aggregate gering zu halten.The invention is based on the knowledge that a pump corresponding to the task must be designed in such a way that it can be used largely in rooms or to match dimensions that are also available without a pump; that it uses existing drive options and, if possible or necessary, takes on further functions in order to keep the total number of additional components or additional machining sequences on the housings of the gears or units low.
Die Pumpe muß weiterhin bei gleichen Außenabmessungen durch Kombinationen ihrer inneren Gestaltung unterschiedlichen Auf¬ gabenstellungen entsprechen können. Diese erfindungsgemäßen Bedingungen werden durch eine Rotationspumpe erfüllt, die mit einem eigenständigen Gehäuse neben einer, von der Pumpe unabhängigen Wellenlagerung ange¬ ordnet ist und deren Pumpenrotor von der gelagerten Welle angetrieben wird, wobei die Rotationspumpe in standardisierter Bauweise Durchmesser-, Breiten- und Passungsverhältnisse auf¬ weist, die an diejenigen von Wälzlagern angepaßt sind und wobei das Gehäuse der Rotationspumpe wahlweise als einheitlich hülsenförmiges Bauteil ausgebildet ist oder als hülsenförmiges Bauteil, das an der der Wellenlagerung abgewandten Seite ein deckeiförmig ausgebildetes Teil aufweist, das die Funktion eines stützenden Getriebe- oder Aggregatedeckels mit oder ohne Wellendurchführung übernimmt.With the same external dimensions, the pump must also be able to correspond to different task positions through combinations of its internal design. These conditions according to the invention are met by a rotary pump which is arranged with an independent housing next to a shaft bearing which is independent of the pump and whose pump rotor is driven by the mounted shaft, the rotary pump having a diameter, width and fit ratio in a standardized design ¬, which are adapted to those of rolling bearings and the housing of the rotary pump is optionally designed as a uniform sleeve-shaped component or as a sleeve-shaped component that has a cover-shaped part on the side facing away from the shaft bearing, which has the function of a supporting gear or unit cover with or without shaft bushing.
Diese neuartige Zuordnung und Gestaltung hat den Vorteil, daß entsprechend zu den auf die Getriebe- oder Aggregateleistungen und -aufgaben abgestimmten Größen und Bauarten von Wälzlagern passende Pumpenleistungen standardisiert ausgewählt und ein¬ gesetzt werden können; vergleichbar dem Einsatz anderer, den Lagergrößen zugeordneter, standardisierter Bauteile.This new type of assignment and design has the advantage that suitable pump capacities can be selected and used in a standardized manner in accordance with the sizes and types of roller bearings matched to the gearbox or unit performance and tasks; comparable to the use of other standardized components assigned to the bearing sizes.
Vorteilhafterweise übernimmt die erfindungsgemäße Rotations¬ pumpe eine stützende und/oder positionierende Funktion für die daneben angeordneten Wellenlagerungen, beispielsweise anstelle einer abstützenden Buchse oder bei entsprechender Gestaltung auch die Funktion eines stützenden Gehäusedeckels. Dabei kann das Medium durch das seitliche Lager bewegt oder durch Dichtungselemente von diesem ferngehalten werden.Advantageously, the rotary pump according to the invention assumes a supporting and / or positioning function for the shaft bearings arranged next to it, for example instead of a supporting bushing or, with a corresponding design, also the function of a supporting housing cover. The medium can be moved through the side bearing or kept away from it by sealing elements.
Auch können durch unterschiedliche Formgebung innerhalb des Pumpengehäuses und durch den Einsatz entsprechender Rotoren beispielsweise hydrodynamische oder hydrostatische Pumpen- eigenschaften auf einfache Weise erzeugt werden.Different shapes within the pump housing and the use of appropriate rotors can also be used to easily generate, for example, hydrodynamic or hydrostatic pump properties.
Ein weiterer Vorteil ist, daß die Rotationspumpe nicht nur in neue, sondern vielfach ohne größeren Aufwand und zusätzliches Bauvolumen auch in vorhandene Getriebe- oder Aggregatekonzepte eingebracht werden kann. Weiterhin können unabhängig vonein¬ ander sowohl die Pumpe, als auch das danebenliegenden Lager getauscht werden, sodaß eine freie, preiswerte Kombination, von Lager-, wie von Pumpeneigenschaften auf einfache Weise möglich ist. Durch die angepaßte Pumpenkonstruktion verein¬ facht sich auch die Wartung bei Verschleiß, mit Montage und Demontage von Pumpe oder Lager.Another advantage is that the rotary pump not only in new, but often without much effort and additional Construction volume can also be incorporated into existing gear or unit concepts. Furthermore, both the pump and the adjacent bearing can be replaced independently of one another, so that a free, inexpensive combination of bearing and pump properties is possible in a simple manner. The adapted pump construction also simplifies maintenance in the event of wear, with assembly and disassembly of the pump or bearing.
Erfindungsgemäß weist die äußere Pumpenkontur Durchmesser auf, die denjenigen eines zugeordneten Wälzlagers angepaßt sind. Die Anpassung kann Maßgleichheit bedeuten oder eine gering¬ fügige Abweichung derart gestatten, daß sie mit einfachen Stützhülsen, Paßscheiben oder den Dichtscheiben der Pumpe überbrückt werden kann. Dies hat den Vorteil, daß die Pumpen nicht in jeder Lagergröße vorhanden sein müssen, sondern aus¬ gewählte Größenklassen überdecken, ohne den Einbauraum über¬ mäßig aufzuweiten oder den Einbau zu komplizieren.According to the invention, the outer pump contour has diameters which are adapted to those of an associated roller bearing. The adaptation can mean identical dimensions or allow a slight deviation in such a way that it can be bridged with simple support sleeves, shims or the sealing washers of the pump. This has the advantage that the pumps do not have to be available in every bearing size, but rather cover selected size classes without unduly expanding the installation space or complicating the installation.
Für den Zu- und Ablauf des Mediums in der Pumpe und in den zugeordneten Wänden der Getriebe- und Aggregategehäuse sind in den Figuren einige einfache Vorschläge dargestellt.Some simple suggestions are shown in the figures for the inflow and outflow of the medium in the pump and in the associated walls of the gearbox and assembly housing.
Ist erfindungsgemäß das Pumpengehäuse an der der Wellenlage¬ rung abgewandten Seite mit einem deckeiförmig ausgebildeten Teil, entsprechend einem Aggregatedeckel versehen, dann können Zu- und Ablauf pumpenseitig durch das Deckelteil geführt werden, ohne daß übliche Deckeldurchmesser, die den Lager¬ durchmessern zugeordnet sind, geändert werden müssen.If, according to the invention, the pump housing is provided with a cover-shaped part on the side facing away from the shaft bearing, corresponding to an aggregate cover, the inlet and outlet can be guided through the cover part on the pump side without changing the usual cover diameters which are assigned to the bearing diameters Need to become.
Die grundsätzliche Möglichkeit, eine Pumpe als hydraulische Bremse, oder für eine hydraulische Kupplung oder als Motor einzusetzen ist mit der erfindungsgemäßen Rotationspumpe und deren Anordnung in besonders kompakter Bauweise gegeben. Die weiteren vorteilhaften Eigenschaften der erfindungsge¬ mäßen Pumpen sind anhand der Fig. 1 bis 5 beispielhaft darge¬ stellt und nachfolgend beschrieben.The basic possibility of using a pump as a hydraulic brake, or for a hydraulic clutch or as a motor is given with the rotary pump according to the invention and its arrangement in a particularly compact design. The further advantageous properties of the pumps according to the invention are illustrated by way of example with reference to FIGS. 1 to 5 and are described below.
In Fig. 1 ist eine solche Pumpe (1) als hülsenförmiges Bauteil neben einem Lager (2) , auf einer antreibenden Welle (3) und in einem Aggregategehäuse (4) angeordnet. Dargestellt ist eine hydrodynamische Zentrifugalpumpe. Sie besitzt ein Gehäuse (5) , einen Rotor (6) , der als axial schwimmendes Schleuderrad ausgebildet ist und eine Dichtscheibe (7) . Die Pumpe stützt die seitlichen Kräfte des äußeren Lagerringes (8) über die Dichtscheibe (7) und das Pumpengehäuse (5) gegen einen fremden Stützring (10) ab. Sie saugt das Medium durch eine untenliegende Einlaßbohrung (11) im Aggregategehäuse (4) an und durch einen im Pumpengehäuse (5) radial angeordneten Kanal (12) hindurch in den Rotor (6) . Die zentrifugalen Kräfte schieben das Medium durch eine Öffnung (13) in einen Ringkanal (14) und von dort in die Auslaßkanäle (15) des Aggregatege¬ häuses (4) . Pumpe (1) und Lager (2) besitzen den gleichen Innen- und Außendurchmesser.In Fig. 1, such a pump (1) is arranged as a sleeve-shaped component next to a bearing (2), on a driving shaft (3) and in an assembly housing (4). A hydrodynamic centrifugal pump is shown. It has a housing (5), a rotor (6) which is designed as an axially floating centrifugal wheel and a sealing disc (7). The pump supports the lateral forces of the outer bearing ring (8) via the sealing washer (7) and the pump housing (5) against an external support ring (10). It sucks the medium through an inlet bore (11) in the unit housing (4) and through a channel (12) arranged radially in the pump housing (5) into the rotor (6). The centrifugal forces push the medium through an opening (13) into an annular channel (14) and from there into the outlet channels (15) of the unit housing (4). Pump (1) and bearing (2) have the same inside and outside diameter.
In Fig. 2 ist eine Pumpe (1) dargestellt, deren Gehäuse als hülsenförmiges Bauteil (5.1) ausgebildet ist, das an der der Wellenlagerung (2) abgewandten Seite ein deckeiförmig ausge¬ bildetes Teil (5.2) aufweist, das die Funktion eines stützen¬ den Getriebedeckels mit einer Wellendurchführung übernimmt.2 shows a pump (1), the housing of which is designed as a sleeve-shaped component (5.1) which, on the side facing away from the shaft bearing (2), has a cover-shaped part (5.2) which functions as a support takes over the gear cover with a shaft bushing.
Der Rotor (6) ist als axial schwimmender Flügelzellenrotor ausgebildet, der in einer exzentrischen Gehäusebohrung (19) sitzt. Die Zu- und Ablaufbohrungen (20) sind durch den Deckel¬ teil (5.2) des Gehäuses geführt. Beispielhaft ist das, dem Lagerdurchmesser angepaßte Teil des Gehäuses (5.1) in eine Bohrung eines Aggregategehäuses (4) eingesetzt, die etwas größer als der Lageraußendurchmesser ist. Die geringe Durchmesserdifferenz zum abgestützten Lager (2) überbrückt die seitliche Dichtscheibe (7) der Pumpe (1) . Fig. 3 zeigt einen Ausschnitt von Fig.1 mit dem Unterschied, daß neben der Pumpe (1.1) eine zweite Pumpe (1.2) angeordnet ist, deren Gehäuse entsprechend Fig. 2 ein deckeiförmig aus¬ gebildetes Teil (5.2) aufweist. Beide Pumpen besitzen gleich- artige Rotoren und ihre Kanäle sind derart ausgebildet, daß der Förderstrom des Mediums hintereinander beide Pumpen durch¬ strömt. Das Hintereinanderschalten der Pumpen erhöht Pumpen¬ druck und Fördermenge. Die beiden Rotoren müssen nicht von gleicher innerer Bauart sein.The rotor (6) is designed as an axially floating vane rotor, which is seated in an eccentric housing bore (19). The inlet and outlet bores (20) are guided through the cover part (5.2) of the housing. The part of the housing (5.1) which is adapted to the bearing diameter is used as an example in a bore in an assembly housing (4) which is somewhat larger than the bearing outer diameter. The small diameter difference to the supported bearing (2) bridges the side sealing disc (7) of the pump (1). 3 shows a detail from FIG. 1 with the difference that a second pump (1.2) is arranged next to the pump (1.1), the housing of which, as shown in FIG. 2, has a cover-shaped part (5.2). Both pumps have identical rotors and their channels are designed such that the flow of the medium flows through both pumps in succession. The series connection of the pumps increases the pump pressure and delivery rate. The two rotors do not have to be of the same internal design.
Fig. 4 zeigt einen Ausschnitt von zwei gleichartigen Pumpen (1.1 und 1.2) entsprechend Fig. 1, die derart nebeneinander angeordnet sind, daß sie durch einen gemeinsamen Kanal ansau¬ gen, jedoch parallel getrennte Förderströme erzeugen, die durch die Auslaßkanäle (15.1 und 15.2) weitergeleitet werden. Im Unterschied zu Fig.3 ist hier der innere Lagerring (9) über eine Paßscheibe (16) , die beiden Rotoren (6) und eine Wellenmutter (17) fest eingespannt.Fig. 4 shows a section of two similar pumps (1.1 and 1.2) corresponding to Fig. 1, which are arranged next to each other in such a way that they suck through a common channel, but produce separate flow rates in parallel, which flow through the outlet channels (15.1 and 15.2 ) to get redirected. In contrast to Figure 3, the inner bearing ring (9) is firmly clamped via a shim (16), the two rotors (6) and a shaft nut (17).
Zur festen Einspannung der Lagerung ist zusätzlich der äußere Lagerring (8) über die beiden Pumpengehäuse (5) und die Dicht- Scheiben (7) gegen einen üblichen Lagerdeckel (18) verspannt. Der Innendurchmesser beider Pumpen ist beispielsweise ein wenig kleiner als derjenige des Lagers. Der Unterschied der Durchmesser wird durch die Paßcheibe (16) überbrückt.To firmly clamp the bearing, the outer bearing ring (8) is additionally braced against a conventional bearing cover (18) via the two pump housings (5) and the sealing washers (7). For example, the inside diameter of both pumps is a little smaller than that of the bearing. The difference in diameter is bridged by the shim (16).
Fig.5 zeigt die kompakte Bauform einer Pumpe(1), entsprechend Fig.2, jedoch mit anderem Rotor und ohne Wellendurchführung. Der Pumpenrotor (6) ist als Schleuderrad ausgebildet und schwimmend gelagert, sodaß er durch ein Kippen des Wellenendes aus einer Wellendurchbiegung und einem möglichen Ausweichen des dargestellten Kegelrollenlagers (22) nicht gestört wird. Der Rotor (6) wird über Mitnehmerstifte (21) angetrieben, die in das Ende der gelagerten Welle (3) eingreifen. Die Pumpe ist derart kompakt, daß sie nicht mehr Raum benötigt, als ein normalerweise verwendeter Getriebedeckel mit einem Stützbund. Fig. 5 shows the compact design of a pump (1), corresponding to Fig. 2, but with a different rotor and without shaft passage. The pump rotor (6) is designed as a centrifugal wheel and is mounted in a floating manner, so that it is not disturbed by the shaft end tipping due to shaft deflection and possible evasion of the tapered roller bearing (22) shown. The rotor (6) is driven by driver pins (21) which engage in the end of the supported shaft (3). The pump is so compact that it does not take up more space than a normally used gear cover with a support collar.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Rotationspumpe für Getriebe und Aggregate zur Förderung von flüssigen oder gasförmigen Medien, die mit einem eigenständigen Gehäuse neben einer, von der Pumpe unab¬ hängigen Wellenlagerung angeordnet ist und deren Pumpen- rotor von der gelagerten Welle angetrieben wird, d a d u r c h g e k e n n z e i c h n e t, daß die Rotationspumpe (1) in standardisierter Bauweise Durchmesser-, Breiten- und Passungsverhältnisse aufweist, die an diejenigen von Wälzlagern angepaßt sind und daß das Gehäuse (5) der Rotationspumpe wahlweise als einheitlich hülsenförmiges Bauteil ausgebildet ist oder als hülsenför¬ miges Bauteil (5.1), das an der der Wellenlagerung (2) ab¬ gewandten Seite ein deckeiförmig ausgebildetes Teil (5.2) aufweist, das die Funktion eines stützenden Getriebe- oder Aggregatedeckels mit oder ohne Wellendurchführung über¬ nimmt.1. Rotary pump for gearboxes and units for conveying liquid or gaseous media, which is arranged with an independent housing next to a shaft bearing that is independent of the pump and whose pump rotor is driven by the mounted shaft, characterized in that the rotary pump ( 1) in a standardized design has diameter, width and fit ratios that are adapted to those of rolling bearings and that the housing (5) of the rotary pump is optionally designed as a uniform sleeve-shaped component or as a sleeve-shaped component (5.1), which on the The side facing away from the shaft bearing (2) has a cover-shaped part (5.2) which takes over the function of a supporting gear or unit cover with or without a shaft bushing.
2. Rotationspumpe nach Anspruch 1 dadurch gekennzeichnet, daß sie die Position der neben¬ liegenden Wellenlagerung fixiert und seitliche Lagerkräfte von äußeren Lagerringen (8) durch das Pumpengehäuse (5) und/oder von inneren Lagerringen (9) durch den Pumpenrotor (6) überträgt.2. Rotary pump according to claim 1, characterized in that it fixes the position of the adjacent shaft bearing and transmits lateral bearing forces from outer bearing rings (8) through the pump housing (5) and / or from inner bearing rings (9) through the pump rotor (6) .
3. Rotationspumpe nach Anspruch 1 und 2, dadurch gekennzeichnet, daß sie in gleicher oder unter- schiedlicher Bauweise mehrfach nebeneinander angeordnet ist und dabei parallele oder hintereinander geschaltete Förderströme erzeugt. 3. Rotary pump according to claim 1 and 2, characterized in that it is arranged several times next to one another in the same or different construction and thereby produces parallel or series-connected flow rates.
4. Rotationspumpe nach Ansprüche 1 bis 3, dadurch gekennzeichnet, daß sie das Fördermedium durch die danebenliegende Wellenlagerung (2) bewegt.4. Rotary pump according to claims 1 to 3, characterized in that it moves the medium through the adjacent shaft bearing (2).
5. Rotationspumpe nach Ansprüche 1 bis 3, dadurch gekennzeichnet, daß Dichtscheiben (7) ein Fördern des Mediums zur Wellenlagerung (2) weitestgehend ver¬ hindern.5. Rotary pump according to claims 1 to 3, characterized in that sealing discs (7) largely prevent the medium from being conveyed to the shaft bearing (2).
6. Rotationspumpe nach Anspruch I bis 5 gekennzeichnet durch ein Pumpengehäuse (5) und einen Rotor (6) , die entsprechend einer hydrodynamischen Pumpe, bei¬ spielsweise einer Kreiselpumpe, einer Seitenkanalpumpe oder einer Zentrifugalpumpe mit radial gerade verlaufenden Schaufeln ausgebildet sind.6. Rotary pump according to claim I to 5 characterized by a pump housing (5) and a rotor (6) which are designed according to a hydrodynamic pump, for example a centrifugal pump, a side channel pump or a centrifugal pump with radially straight blades.
7. Rotationspumpe nach Anspruch 1 bis 5 gekennzeichnet durch ein Pumpengehäuse (5) und eine7. Rotary pump according to claim 1 to 5, characterized by a pump housing (5) and one
Rotoreinheit (6) , die entsprechend einer hydrostatischen Pumpe, beispielsweise einer Flügelzellenpumpe, einer Rollenzellenpumpe oder einer Innenzahnradpumpe ausge¬ bildet sind. Rotor unit (6) which are designed in accordance with a hydrostatic pump, for example a vane pump, a roller cell pump or an internal gear pump.
EP91902679A 1991-01-23 1991-01-23 Rotary pump Withdrawn EP0549579A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1991/000122 WO1992013196A1 (en) 1991-01-23 1991-01-23 Rotary pump

Publications (1)

Publication Number Publication Date
EP0549579A1 true EP0549579A1 (en) 1993-07-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP91902679A Withdrawn EP0549579A1 (en) 1991-01-23 1991-01-23 Rotary pump

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EP (1) EP0549579A1 (en)
KR (1) KR100202163B1 (en)
WO (1) WO1992013196A1 (en)

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Publication number Priority date Publication date Assignee Title
EP1860326A1 (en) 2006-05-26 2007-11-28 Siemens Aktiengesellschaft Multistage turbocompressor
KR101715677B1 (en) 2015-09-17 2017-03-15 (유)한독엘리베이터 pressure gear pump
GB2616889A (en) * 2022-03-24 2023-09-27 Edwards Ltd Centrifugal oil pump device for a vacuum pump

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Publication number Priority date Publication date Assignee Title
DE328652C (en) * 1920-10-30 Max Greiner Self-lubricating bearing for fast rotating shafts
DE836131C (en) * 1949-08-19 1952-04-10 Canadian Patents Dev Lubricating device for the shaft bearings of high-speed rotating engines with a compressor
GB749949A (en) * 1953-06-17 1956-06-06 Fiat Spa Bearing for shafts rotating at high speed, more particularly in high temperature surroundings, and the lubrication thereof
IT1130845B (en) * 1980-09-29 1986-06-18 Riv Officine Di Villar Perosa TURNING PUMPING UNIT WITH FUNCTION BOTH SUPPORTING A ROTATING BODY AND SUPPLYING A LIQUID WITH LUBRICANT PROPERTIES
JPS60220262A (en) * 1984-04-16 1985-11-02 Fuji Tekkosho:Kk Oil pump for transmission

Non-Patent Citations (1)

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Title
See references of WO9213196A1 *

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KR930700774A (en) 1993-03-16
KR100202163B1 (en) 1999-06-15
WO1992013196A1 (en) 1992-08-06

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