EP0999365B1 - Hydraulic motor-pump unit - Google Patents

Hydraulic motor-pump unit Download PDF

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Publication number
EP0999365B1
EP0999365B1 EP19990890342 EP99890342A EP0999365B1 EP 0999365 B1 EP0999365 B1 EP 0999365B1 EP 19990890342 EP19990890342 EP 19990890342 EP 99890342 A EP99890342 A EP 99890342A EP 0999365 B1 EP0999365 B1 EP 0999365B1
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EP
European Patent Office
Prior art keywords
flange
centering
driving motor
sealing flange
pump
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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
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EP19990890342
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German (de)
French (fr)
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EP0999365A1 (en
Inventor
Gerhard Dipl.-Ing Huber
Michael Sachs
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Hoerbiger Hydraulik GmbH
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Hoerbiger Hydraulik GmbH
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Publication of EP0999365A1 publication Critical patent/EP0999365A1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00

Definitions

  • the invention relates to a hydraulic combination unit, with a rotating driven pump and one with its drive axis coaxial to the axis of rotation of the Pump arranged and thus rotatably connected drive motor.
  • the Combination unit includes, for example, in addition to the pump and its Drive motor often also the tank as well as various controls, valves and the like, the mutual arrangement of the individual elements for Taking into account the respective requirements can be very different.
  • different capacities and for the various purposes so that sizes of the individual elements are required there is a total of one large number of manufacturers of such units in stock or on request elements to be kept ready, for example only a number of different ones Drive motors together with otherwise essentially the same To be able to use components.
  • the object of the present invention is to overcome the disadvantages mentioned to avoid known arrangements of the type mentioned and in particular to design such a hydraulic combination unit so that combinations different parts as simple as possible and with little additional effort can be realized.
  • the centering between The output axis of the drive motor and the axis of rotation of the pump are advantageously implemented Way directly between the sealing flange and centered on the pump housing the housing of the drive motor, so that the attachment of the drive motor on Carrier flange and its independent attachment to the sealing flange on it cannot have a negative impact.
  • the Carrier flange at least two independent fasteners, preferably with Through holes interacting with screws, for the sealing flange on the one hand and the drive motor on the other hand and that concentric with the axis of rotation of Pump and drive motor separate centering elements on the carrier flange on the one hand and on the sealing flange and drive motor on the other hand compared to the direct Centering between drive motor and sealing flange having greater play Assembly pre-centering are provided.
  • this one to the output axis Has concentrically protruding centering that in a to the axis of rotation Pump concentric recess on the sealing flange that the Recess on the sealing flange in turn in a protruding centering approach is formed, which has a concentrically arranged precentering surface on the outside precentering interaction with a precentering surface on the Has through bore of the support flange, and that the centering of the Sealing flange is recessed like a groove at at least two spaced locations, wherein in these grooves from the precentering surface of the carrier flange for the Sealing flange starting with inward centering approaches for the Engage the pre-centering of the carrier flange on the centering shoulder of the drive motor.
  • a shaft seal can be arranged, which in the axial Direction on the one hand from a gradation of the through hole and on the other hand from Centering approach of the inserted drive motor is held and thus on very simple way the pump side is reliable in relation to the drive and the environment seals.
  • the Flange unit preferably the support flange alone, for fastening Additional elements, such as an engine cover or electrical or electronic peripheral elements, with extensions, fasteners and provided the same, which is also very simple and for many variants a wide variety of designs requiring as few different parts as possible or allows the consideration of various requirements.
  • Fig. 1 shows one Combination unit according to the invention in a section along the line A-A in FIG. 2
  • 2 shows the combination unit according to FIG. 1 in side view
  • FIG. 3 shows one Section along the line B-B in Fig.1.
  • the combination unit shown consists essentially of a rotating driven pump 1 and one with its output axis 2 coaxial to the axis of rotation 3 the pump 1 arranged and thus rotatably connected drive motor 4th
  • the pump housing 5 which, for example, also not shown here Way the tank of the unit or control or regulating valves or the like may contain - and drive motor 4 is one of the output axis 2 of the Drive motor 4 sealed through flange unit 6 arranged, which one the pump housing 5 sealing and against this and the axis of rotation 3 of the Pump 1 centered sealing flange 7 and one hand on the sealing flange 7 and on the other hand, has a carrier flange 8 detachably fastened to the drive motor 4.
  • the carrier flange 8 has two independent screws according to Figure 3 interacting through holes 9, 10 for attachment to the sealing flange 7 on the one hand and on the drive motor 4 on the other.
  • Concentric to the axis of rotation of Pump 1 and drive motor 4 are separate centering elements 11, 12 on the carrier flange 8 arranged on the one hand and on the sealing flange 7 and drive motor 4 on the other.
  • Sealing flange 7 is thus a larger game pre-centering assembly between the carrier flange 8 and the drive motor 4 on the one hand and between given the carrier flange 8 and the sealing flange 7 on the other hand.
  • this has one Drive axis 2 concentrically protruding centering projection 13 on which in a Rotation axis 3 of the pump 1 concentric recess 14 on the sealing flange 7 is insertable.
  • This recess 14 on the sealing flange 7 is in turn in one protruding centering projection 15 formed, which is concentric on the outside arranged pre-centering surface 16 (see Figure 3) for pre-centering interaction with a pre-centering surface 17 on the through bore of the carrier flange 8 has.
  • the centering projection 15 of the sealing flange 7 is (as also from FIG.
  • a shaft seal 21 which in the axial direction on the one hand from a step 22 of the through hole 20 and on the other hand from the centering projection 13 of the inserted drive motor 4 is held.
  • the flange unit 6 and in particular the support flange 8 for attaching additional elements such as Example of an engine cover 23 or of electrical or electronic peripheral elements 24 may be formed, for which purpose a bent extension 25 on Carrier flange 8 is provided, which corresponding mounting holes or the like can wear.

Description

Die Erfindung betrifft ein hydraulisches Kombiaggregat, mit einer rotierend angetriebenen Pumpe und einem mit seiner Antriebsachse koaxial zur Drehachse der Pumpe angeordneten und damit drehverbunden befestigten Antriebsmotor.The invention relates to a hydraulic combination unit, with a rotating driven pump and one with its drive axis coaxial to the axis of rotation of the Pump arranged and thus rotatably connected drive motor.

Anordnungen der genannten Art sind in verschiedensten Ausführungen bekannt und werden heutzutage beispielsweise in Kraftfahrzeugen zur hydraulischen Betätigung von Heckklappen, Faltverdecken oder dergleichen eingesetzt. Das Kombiaggregat umfaßt dabei beispielsweise neben der Pumpe und ihrem Antriebsmotor oft auch den Tank sowie verschiedene Steuerelemente, Ventile und dergleichen, wobei die gegenseitige Anordnung der Einzelelemente zur Berücksichtigung der jeweiligen Erfordernisse sehr unterschiedlich sein kann. Da weiters für die verschiedenen Einsatzzwecke oft auch verschiedene Kapazitäten und damit Größen der einzelnen Elemente erforderlich sind, ergibt sich insgesamt eine große Anzahl von den Herstellern derartiger Aggregate auf Lager bzw. auf Anforderung bereitzuhaltender Elemente, um etwa nur eine Anzahl unterschiedlicher Antriebsmotoren zusammen mit ansonsten im wesentlichen gleichbleibenden Komponenten verwenden zu können.Arrangements of the type mentioned are known in various designs and are nowadays used, for example, in motor vehicles for hydraulic Operation of tailgates, folding tops or the like used. The Combination unit includes, for example, in addition to the pump and its Drive motor often also the tank as well as various controls, valves and the like, the mutual arrangement of the individual elements for Taking into account the respective requirements can be very different. There Furthermore, different capacities and for the various purposes so that sizes of the individual elements are required, there is a total of one large number of manufacturers of such units in stock or on request elements to be kept ready, for example only a number of different ones Drive motors together with otherwise essentially the same To be able to use components.

In DE 19 517 667 und EP 364 816 sind hydraulische Kombiaggregate beschrieben mit Flanscheinheiten zwischen Pumpengehäuse und Antriebsmotor.In DE 19 517 667 and EP 364 816 hydraulic combination units are described with flange units between the pump housing and Drive motor.

Aufgabe der vorliegenden Erfindung ist es, die erwähnten Nachteile der bekannten Anordnungen der eingangs genannten Art zu vermeiden und insbesonders ein derartiges hydraulisches Kombiaggregat so auszubilden, daß Kombinationen unterschiedlicher Einzelteile möglichst einfach und mit geringem zusätzlichen Aufwand realisiert werden können.The object of the present invention is to overcome the disadvantages mentioned to avoid known arrangements of the type mentioned and in particular to design such a hydraulic combination unit so that combinations different parts as simple as possible and with little additional effort can be realized.

Diese Aufgabe wird gemäß der Erfindung bei einem Kombiaggregat der eingangs genannten Art dadurch gelöst, daß zwischen Pumpengehäuse und Antriebsmotor eine von der Abtriebsachse des Antriebsmotors abgedichtet durchsetzte Flanscheinheit angeordnet ist, welche einen das Pumpengehäuse abdichtenden und gegenüber diesem und der Drehachse der Pumpe zentrierten Dichtflansch und einen einerseits am Dichtflansch und andererseits am Antriebsmotor lösbar befestigten Trägerflansch aufweist, und daß der Antriebsmotor formschlüssig im Dichtflansch zentriert ist. Damit braucht also beispielsweise für die Befestigung eines anderen Antriebsmotors im wesentlichen nur mehr der Trägerflansch umgestaltet zu werden, wobei in Bezug auf die Befestigung am Trägerflansch selbst keine besonderen Anforderungen an den Antriebsmotor zu stellen sind. Die Zentrierung zwischen Abtriebsachse des Antriebsmotors und Drehachse der Pumpe erfolgt in vorteilhafter Weise unmittelbar zwischen dem am Pumpengehäuse zentrierten Dichtflansch und dem Gehäuse des Antriebsmotors, sodaß die Befestigung des Antriebsmotors am Trägerflansch und dessen davon unabhängige Befestigung am Dichtflansch darauf keine negative Auswirkung haben können.This object is achieved according to the invention in a combination unit type mentioned solved in that between the pump housing and Drive motor passes through a sealed by the output axis of the drive motor Flange unit is arranged, which seals the pump housing and opposite this and the axis of rotation of the pump centered sealing flange and one on the one hand on the sealing flange and on the other hand releasably attached to the drive motor Has carrier flange, and that the drive motor is positively in the sealing flange is centered. So it needs for example to attach another Drive motor essentially only the support flange to be redesigned with regard to the attachment to the support flange itself, no particular ones Requirements to be met by the drive motor. The centering between The output axis of the drive motor and the axis of rotation of the pump are advantageously implemented Way directly between the sealing flange and centered on the pump housing the housing of the drive motor, so that the attachment of the drive motor on Carrier flange and its independent attachment to the sealing flange on it cannot have a negative impact.

Durch die beschriebene Flanscheinheit bzw. deren Aufbau aus am Pumpengehäuse zentriertem und die Pumpeneinheit abdichtenden Dichtflansch und dem vorweg am Antriebsmotor befestigbaren Trägerflansch wird durch die mögliche variable Gestaltung des Zentierdurchmessers, der Zentrierlänge, des Anschraubbohrbildes und dergleichen eine Unabhängigkeit von Antriebstyp erreicht, wobei mit wenigen Modulen, welche in unterschiedlichen Kombinationen eine große Vielzahl von Anforderungen (Leistung, elektrische und hydraulische Eigenschaften, Platzbedarf, räumliche Anordnung, etc.) abdecken können, das Auslangen gefunden wird. Wesentliche Unterschiedsmerkmale der einzelnen Varianten sind damit in ein bzw. zwei Bauteile verlegt, für deren Herstellung auch sehr einfach Technologien gewählt werden können, die bei hohen Stückzahlen wirtschaftlich sind (beispielweise Spritzguß oder dergleichen). Durch die Möglichkeit der Vormontage des Trägerflansches am Antriebsmotor und des Dichtflansches am Pumpengehäuse ist die Fertigmontage sehr vereinfacht.Due to the flange unit described or its structure from Pump housing centered and sealing the pump unit sealing flange and The carrier flange that can be attached to the drive motor beforehand is replaced by the possible variable design of the centering diameter, the centering length, the screw-on drilling pattern and the like achieves independence from the drive type, whereby with few modules, which in different combinations a large variety of Requirements (performance, electrical and hydraulic properties, space requirements, spatial arrangement, etc.) can cover that sufficiency is found. The main distinguishing features of the individual variants are therefore one or laid two components, for the manufacture of which technologies were selected very easily that can be economical with large quantities (e.g. injection molding or similar). The possibility of pre-assembling the carrier flange on The drive motor and the sealing flange on the pump housing are very easy to install simplified.

In weiterer bevorzugter Ausgestaltung der Erfindung ist vorgesehen, daß der Trägerflansch zumindest je zwei unabhängige Befestigungselemente, vorzugsweise mit Schrauben zusammenwirkende Durchgangsbohrungen, für den Dichtflansch einerseits und den Antriebsmotor andererseits aufweist und daß konzentrisch zur Drehachse von Pumpe und Antriebsmotor separate Zentrierelemente am Trägerflansch einerseits und am Dichtflansch und Antriebsmotor andererseits zur gegenüber der direkten Zentrierung zwischen Antriebsmotor und Dichtflansch größeres Spiel aufweisenden Montage-Vorzentrierung vorgesehen sind. Die eigentliche Zentrierung im zusammengebautem Zustand bzw. beim regulären Betrieb erfolgt in die Genauigkeit verbessernder Weise damit nach wie vor unmittelbar zwischen Antriebsmotor und dem am Pumpengehäuse zentrierten Dichtflansch, wobei aber durch die erwähnten Montage-Vorzentrierungen der Zusammenbau von Trägerflansch und Antriebsmotor bzw. das Aufsetzen dieser Antriebseinheit auf der bereits den Dichtflansch tragenden Pumpeneinheit sehr vereinfacht wird.In a further preferred embodiment of the invention it is provided that the Carrier flange at least two independent fasteners, preferably with Through holes interacting with screws, for the sealing flange on the one hand and the drive motor on the other hand and that concentric with the axis of rotation of Pump and drive motor separate centering elements on the carrier flange on the one hand and on the sealing flange and drive motor on the other hand compared to the direct Centering between drive motor and sealing flange having greater play Assembly pre-centering are provided. The actual centering in assembled state or during regular operation takes place in the accuracy improving way still directly between the drive motor and the on the pump housing centered sealing flange, but by the mentioned Assembly pre-centering of the assembly of the carrier flange and drive motor or the placement of this drive unit on the one already bearing the sealing flange Pump unit is very simplified.

Nach einer anderen bevorzugten Ausgestaltung der Erfindung kann vorgesehen sein, daß zur direkten Zentrierung des Antriebsmotors dieser einen zur Abtriebsachse konzentrisch vorstehenden Zentrieransatz aufweist, der in eine zur Drehachse der Pumpe konzentrische Ausnehmung am Dichtflansch einsteckbar ist, daß die Ausnehmung am Dichtflansch ihrerseits in einem vorstehenden Zentrieransatz ausgebildet ist, welcher außen eine konzentrisch angeordnete Vorzentrierfläche zur vorzentrierenden Zusammenwirkung mit einer Vorzentrierfläche an der Durchgangsbohrung des Trägerflansches aufweist, und daß der Zentrieransatz des Dichtflansches an zumindest zwei beabstandeten Stellen nutartig ausgenommen ist, wobei in diese Nuten von der Vorzentrierfläche des Trägerflansches für den Dichtflansch ausgehend nach innen gerichtete Vorzentrieransätze für die Vorzentrierung des Trägerflansches am Zentrieransatz des Antriebsmotors eingreifen. Damit ist auf konstruktiv sehr einfache Weise eine Lösung der Vorzentrierung zwischen Antriebsmotor und Trägerflansch einerseits bzw. zwischen vormontierter Antriebseinheit (Trägerflansch plus Antriebsmotor) und vormontierter Pumpeneinheit (Pumpe plus Pumpenträger plus Dichtflansch) andererseits erreicht. Der Trägerflansch stützt sich einerseits am Zentrieransatz des Antriebsmotors und andererseits am Zentrieransatz des Dichtflansches ab, wobei diese Abstützungen wie erwähnt größeres Spiel aufweisen als die eigentliche direkte Zentrierung des Zentrieransatzes des Antriebsmotors im Dichtflansch.According to another preferred embodiment of the invention can be provided be that for direct centering of the drive motor this one to the output axis Has concentrically protruding centering that in a to the axis of rotation Pump concentric recess on the sealing flange that the Recess on the sealing flange in turn in a protruding centering approach is formed, which has a concentrically arranged precentering surface on the outside precentering interaction with a precentering surface on the Has through bore of the support flange, and that the centering of the Sealing flange is recessed like a groove at at least two spaced locations, wherein in these grooves from the precentering surface of the carrier flange for the Sealing flange starting with inward centering approaches for the Engage the pre-centering of the carrier flange on the centering shoulder of the drive motor. This is a solution to the pre-centering in a structurally very simple manner between drive motor and carrier flange on the one hand or between pre-assembled Drive unit (carrier flange plus drive motor) and pre-assembled pump unit (Pump plus bellhousing plus sealing flange) reached on the other hand. The carrier flange is based on the one hand on the centering shoulder of the drive motor and on the other hand on Centering approach of the sealing flange, these supports, as mentioned, larger Play as the actual direct centering of the centering approach of the Drive motor in the sealing flange.

In der abgesetzt ausgeführten Durchgangsbohrung des Dichtflansches für die Abtriebsachse des Antriebsmotors kann nach einer anderen bevorzugten Weiterbildung der Erfindung eine Wellendichtung angeordnet sein, welche in axialer Richtung einerseits von einer Abstufung der Durchgangsbohrung und andererseits vom Zentrieransatz des eingesteckten Antriebsmotors gehalten ist und damit auf sehr einfache Weise die Pumpenseite zuverlässig gegenüber Antrieb und Umgebung abdichtet. In the recessed through hole of the sealing flange for the Output axis of the drive motor can be preferred according to another Further development of the invention, a shaft seal can be arranged, which in the axial Direction on the one hand from a gradation of the through hole and on the other hand from Centering approach of the inserted drive motor is held and thus on very simple way the pump side is reliable in relation to the drive and the environment seals.

In einer weiteren bevorzugten Ausgestaltung der Erfindung ist die Flanscheinheit, vorzugsweise der Trägerflansch alleine, zur Befestigung von Zusatzelementen, wie zum Beispiel einer Motorabdeckung oder von elektrischen oder elektronischen peripheren Elementen, mit Fortsätzen, Befestigungselementen und dergleichen versehen, was ebenfalls auf sehr einfache und für viele Varianten möglichst wenige unterschiedliche Teile erfordernde Weise vielfältigste Ausführungen bzw. die Berücksichtigung verschiedenster Anforderungen ermöglicht.In a further preferred embodiment of the invention, the Flange unit, preferably the support flange alone, for fastening Additional elements, such as an engine cover or electrical or electronic peripheral elements, with extensions, fasteners and provided the same, which is also very simple and for many variants a wide variety of designs requiring as few different parts as possible or allows the consideration of various requirements.

Die Erfindung wird im folgenden noch an Hand des in der Zeichnung teilweise schematisch dargestellten Ausführungsbeispieles näher erläutert. Fig.1 zeigt dabei ein erfindungsgemäßes Kombiaggregat in einem Schnitt entlang der Linie A-A in Fig.2, Fig.2 zeigt das Kombiaggregat gemäß Fig.1 in Seitenansicht und Fig.3 zeigt einen Schnitt entlang der Linie B-B in Fig.1.The invention is in the following based on the in the drawing partially schematically illustrated embodiment. Fig. 1 shows one Combination unit according to the invention in a section along the line A-A in FIG. 2, 2 shows the combination unit according to FIG. 1 in side view and FIG. 3 shows one Section along the line B-B in Fig.1.

Das dargestellte Kombiaggregat besteht im wesentlichen aus einer rotierend angetriebenen Pumpe 1 und einem mit seiner Abtriebsachse 2 koaxial zur Drehachse 3 der Pumpe 1 angeordneten und damit drehverbunden befestigten Antriebsmotor 4. Zwischen Pumpengehäuse 5 - welches beispielsweise auch auf hier nicht dargestellte Weise den Tank des Aggregats oder Steuer- bzw. Regelventile oder dergleichen enthalten kann - und Antriebsmotor 4 ist eine von der Abtriebsachse 2 des Antriebsmotors 4 abgedichtet durchsetzte Flanscheinheit 6 angeordnet, welche einen das Pumpengehäuse 5 abdichtenden und gegenüber diesem und der Drehachse 3 der Pumpe 1 zentrierten Dichtflansch 7 und einen einerseits am Dichtflansch 7 und andererseits am Antriebsmotor 4 lösbar befestigten Trägerflansch 8 aufweist.The combination unit shown consists essentially of a rotating driven pump 1 and one with its output axis 2 coaxial to the axis of rotation 3 the pump 1 arranged and thus rotatably connected drive motor 4th Between the pump housing 5 - which, for example, also not shown here Way the tank of the unit or control or regulating valves or the like may contain - and drive motor 4 is one of the output axis 2 of the Drive motor 4 sealed through flange unit 6 arranged, which one the pump housing 5 sealing and against this and the axis of rotation 3 of the Pump 1 centered sealing flange 7 and one hand on the sealing flange 7 and on the other hand, has a carrier flange 8 detachably fastened to the drive motor 4.

Der Trägerflansch 8 weist gemäß Fig.3 je zwei unabhängige mit Schrauben zusammenwirkende Durchgangsbohrungen 9, 10 für die Befestigung am Dichtflansch 7 einerseits und am Antriebsmotor 4 andererseits auf. Konzentrisch zur Drehachse von Pumpe 1 und Antriebsmotor 4 sind separate Zentrierelemente 11, 12 am Trägerflansch 8 einerseits und am Dichtflansch 7 und Antriebsmotor 4 andererseits angeordnet. Gegenüber der formschlüssigen direkten Zentrierung des Antriebsmotors 4 im Dichtflansch 7 ist damit eine ein größeres Spiel aufweisende Montage-Vorzentrierung zwischen dem Trägerflansch 8 und dem Antriebsmotor 4 einerseits sowie zwischen dem Trägerflansch 8 und dem Dichtflansch 7 andererseits gegeben. The carrier flange 8 has two independent screws according to Figure 3 interacting through holes 9, 10 for attachment to the sealing flange 7 on the one hand and on the drive motor 4 on the other. Concentric to the axis of rotation of Pump 1 and drive motor 4 are separate centering elements 11, 12 on the carrier flange 8 arranged on the one hand and on the sealing flange 7 and drive motor 4 on the other. Compared to the positive direct centering of the drive motor 4 in Sealing flange 7 is thus a larger game pre-centering assembly between the carrier flange 8 and the drive motor 4 on the one hand and between given the carrier flange 8 and the sealing flange 7 on the other hand.

Zur direkten Zentrierung des Antriebsmotors 4 weist dieser einen zur Antriebsachse 2 konzentrisch vorstehenden Zentrieransatz 13, auf der in eine zur Drehachse 3 der Pumpe 1 konzentrische Ausnehmung 14 am Dichtflansch 7 einsteckbar ist. Diese Ausnehmung 14 am Dichtflansch 7 ist ihrerseits in einem vorstehenden Zentrieransatz 15 ausgebildet, welcher außen eine konzentrisch angeordnete Vorzentrierfläche 16 (siehe Fig.3) zur vorzentrierenden Zusammenwirkung mit einer Vorzentrierfläche 17 an der Durchgangsbohrung des Trägerflansches 8 aufweist. Der Zentrieransatz 15 des Dichtflansches 7 ist (wie ebenfalls aus Fig.3 deutlich ersichtlich ist) an zwei beabstandeten Stellen 18 nutartig ausgenommen, wobei in diese Nuten 18 von der Vorzentrierfläche 16 des Trägerflansches 8 für den Dichtflansch 7 ausgehend nach innen gerichtete Vorzentrieransätze 19 für die Vorzentrierung des Trägerflansches 8 am Zentrieransatz 13 des Antriebsmotors 4 eingreifen.For direct centering of the drive motor 4, this has one Drive axis 2 concentrically protruding centering projection 13 on which in a Rotation axis 3 of the pump 1 concentric recess 14 on the sealing flange 7 is insertable. This recess 14 on the sealing flange 7 is in turn in one protruding centering projection 15 formed, which is concentric on the outside arranged pre-centering surface 16 (see Figure 3) for pre-centering interaction with a pre-centering surface 17 on the through bore of the carrier flange 8 has. The centering projection 15 of the sealing flange 7 is (as also from FIG. 3 is clearly visible) except at two spaced apart locations 18, wherein in these grooves 18 from the pre-centering surface 16 of the support flange 8 for the Sealing flange 7 starting inward facing centering lugs 19 for the Pre-centering of the carrier flange 8 on the centering shoulder 13 of the drive motor 4 intervention.

In der abgesetzt ausgeführten Durchgangsbohrung 20 des Dichtflansches 7 für die Abtriebsachse 2 des Antriebsmotors 4 ist eine Wellendichtung 21 angeordnet, welche in axialer Richtung einerseits von einer Abstufung 22 der Durchgangsbohrung 20 und andererseits vom Zentrieransatz 13 des eingesteckten Antriebsmotors 4 gehalten ist.In the remote through bore 20 of the sealing flange 7 for the output axis 2 of the drive motor 4 is arranged a shaft seal 21, which in the axial direction on the one hand from a step 22 of the through hole 20 and on the other hand from the centering projection 13 of the inserted drive motor 4 is held.

Wie insbesonders aus Fig.2 ersichtlich ist, kann die Flanscheinheit 6 und insbesonders der Trägerflansch 8 zur Befestigung von Zusatzelementen wie zum Beispiel einer Motorabdeckung 23 oder von elektrischen oder elektronischen peripheren Elementen 24 ausgebildet sein, wozu hier ein abgebogener Fortsatz 25 am Trägerflansch 8 vorgesehen ist, welcher entsprechende Befestigungsbohrungen oder dergleichen tragen kann.As can be seen in particular from FIG. 2, the flange unit 6 and in particular the support flange 8 for attaching additional elements such as Example of an engine cover 23 or of electrical or electronic peripheral elements 24 may be formed, for which purpose a bent extension 25 on Carrier flange 8 is provided, which corresponding mounting holes or the like can wear.

Insbesonders aus den Zeichnungen ist auch ersichtlich, daß die konkrete Ausgestaltung der Vorzentrierungen zwischen dem Trägerflansch 8 einerseits und dem Antriebsmotor 4 bzw. dem Dichtflansch 7 der Pumpeneinheit anderseits vom Fachmann auch leicht abgeändert werden könnte - wesentlich ist, daß durch diese Vorzentrierung die Montage erleichtert, aber die direkte Zentrierung des Antriebsmotors 4 relativ zur Pumpe 1 nicht negativ beeinflußt wird. Da die Befestigung des Antriebsmotors 4 direkt nur am Trägerflansch 8 erfolgt, muß die Pumpeneinheit diesbezüglich nicht geändert werden, wenn andere Motoren zu befestigen sind.Especially from the drawings it can also be seen that the concrete Design of the pre-centering between the carrier flange 8 on the one hand and the Drive motor 4 or the sealing flange 7 of the pump unit on the other hand Expert could also be easily modified - it is essential that through this Pre-centering makes assembly easier, but direct centering of the Drive motor 4 is not negatively influenced relative to the pump 1. Because the attachment of the drive motor 4 takes place directly only on the carrier flange 8, the pump unit not be changed in this regard if other motors are to be fastened.

Claims (5)

  1. A hydraulic multi-purpose unit with a rotationally driven pump (1) and a driving motor (4) that is rotatively connected to the pump such that the driven shaft (2) of the motor is arranged coaxial to the rotational axis (3) of the pump (1), wherein a flange unit (6) is arranged between the pump housing (5) and the driving motor (4), and wherein the driven shaft (2) of the driving motor (4) extends through said flange unit in a sealed fashion, characterized in that the flange unit (6) comprises a sealing flange (7) that seals the pump housing (5) and is centered relative to the pump housing and the rotational axis (3) of the pump (1), as well as a carrier flange (8) that is detachably mounted on the sealing flange (7) with one side and on the driving motor (4) with the other side, and in that the driving motor (4) is positively centered in the sealing flange (7).
  2. The hydraulic multi-purpose unit according to Claim 1, characterized in that the carrier flange (8) respectively contains at least two independent mounting elements, preferably through-bores (9, 10) that cooperate with screws, for the sealing flange (7) on one side and for the driving motor (4) on the other side, and in that separate centering elements (11, 12) are provided on the carrier flange (8). as well as on the sealing flange (7) and the driving motor (4) concentric to the rotational axis (3) of the pump (1) and the driving motor (4), wherein the separate centering elements serve for realizing a preliminary centering, in which the clearance is greater than in the direct centering between the driving motor (4) and the sealing flange (7).
  3. The hydraulic multi-purpose unit according to Claim 1 or 2, characterized in that the direct centering of the driving motor (4) is realized by providing the driving motor with a centering projection (13) that protrudes concentric to the driven shaft (2) and can be inserted into a recess (14) on the sealing flange (7) which is arranged concentric to the rotational axis (3) of the pump (4), in that the recess (14) on the sealing flange (7) is situated in a protruding centering projection (15), the outside of which is provided with a concentrically arranged preliminary centering surface (16) that cooperates with a preliminary centering surface (17) on the through-bore of the carrier flange (8) in order to realize the preliminary centering, and in that the centering projection (15) of the sealing flange (7) is recessed in a groove-like fashion in at least two locations that are spaced apart from one another, wherein preliminary centering projections (19) that are directed inward from the preliminary centering surface (17) of the carrier flange (8) for the sealing flange (7) engage into said grooves (18) in order to realize the preliminary centering of the carrier flange (8) on the centering projection (13) of the driving motor (4).
  4. The hydraulic multi-purpose unit according to at least one of Claims 1-3, characterized in that a shaft seal (21) for the driven shaft (2) of the driving motor (4) is arranged in the stepped through-bore (20) of the sealing flange (7), wherein said shaft seal is axially held by a step (22) of the through-bore (20) on one side and by the centering projection (13) of the inserted driving motor (4) on the other side.
  5. The hydraulic multi-purpose unit according to at least one of Claims 1-4, characterized in that the flange unit (6), preferably only the carrier flange (8), contains extensions (25), mounting elements and the like for attaching auxiliary elements, e.g., a motor cover (23) or electric or electronic peripheral elements (24).
EP19990890342 1998-11-04 1999-10-27 Hydraulic motor-pump unit Expired - Lifetime EP0999365B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT182998A AT407660B (en) 1998-11-04 1998-11-04 HYDRAULIC COMBINING UNIT
AT182998 1998-11-04

Publications (2)

Publication Number Publication Date
EP0999365A1 EP0999365A1 (en) 2000-05-10
EP0999365B1 true EP0999365B1 (en) 2004-02-11

Family

ID=3521894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990890342 Expired - Lifetime EP0999365B1 (en) 1998-11-04 1999-10-27 Hydraulic motor-pump unit

Country Status (3)

Country Link
EP (1) EP0999365B1 (en)
AT (1) AT407660B (en)
DE (1) DE59908505D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230358220A1 (en) * 2022-05-04 2023-11-09 Caterpillar Inc. Pump having a flange for mounting an auxiliary pump
USD1017382S1 (en) 2022-05-04 2024-03-12 Caterpillar Inc. Flange

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1756598U (en) * 1955-04-22 1957-11-21 Bosch Gmbh Robert MACHINE SET FORMED FROM A PRESSURE MEDIUM PUMP IN ADDITION TO THE ASSOCIATED DRIVE MOTOR.
US4002029A (en) * 1975-09-22 1977-01-11 Towmotor Corporation Pump motor combination for hydraulic treatment
US4775295A (en) * 1985-05-17 1988-10-04 Klein, Schanzlin & Becker Aktiengesellschaft Centrifugal pump casing
DE3639720C1 (en) * 1986-11-20 1993-04-29 Reinecker Heyko Pump with canned motor or canned magnetic clutch drive
DE3835233A1 (en) * 1988-10-15 1990-04-19 Hsm Pressen Gmbh ELECTRO-HYDRAULIC MOTOR PUMP UNIT
DE9104284U1 (en) * 1991-04-09 1992-05-07 Siemens Ag, 8000 Muenchen, De
FR2708674B1 (en) * 1993-07-30 1996-05-15 Dubuis Volumetric piston pump driven by an alternating linear movement.
DE4410800C2 (en) * 1994-03-29 1996-12-19 Mn Heizungsmontage Gmbh Rotary display device for pumps
DE19517667A1 (en) * 1995-05-13 1996-11-14 Vdo Schindling DC machine e.g. for motor vehicle water pump motor
JP3479182B2 (en) * 1996-04-26 2003-12-15 アイシン精機株式会社 Fluid pump

Also Published As

Publication number Publication date
ATA182998A (en) 2000-09-15
EP0999365A1 (en) 2000-05-10
AT407660B (en) 2001-05-25
DE59908505D1 (en) 2004-03-18

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