EP3067565A1 - Vacuum pump - Google Patents

Vacuum pump Download PDF

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Publication number
EP3067565A1
EP3067565A1 EP15158925.6A EP15158925A EP3067565A1 EP 3067565 A1 EP3067565 A1 EP 3067565A1 EP 15158925 A EP15158925 A EP 15158925A EP 3067565 A1 EP3067565 A1 EP 3067565A1
Authority
EP
European Patent Office
Prior art keywords
groove
vacuum pump
depression
housing
pump according
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.)
Granted
Application number
EP15158925.6A
Other languages
German (de)
French (fr)
Other versions
EP3067565B1 (en
Inventor
Mirko Mekota
Tobias Stoll
Michael Schweighöfer
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.)
Pfeiffer Vacuum GmbH
Original Assignee
Pfeiffer Vacuum 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 Pfeiffer Vacuum GmbH filed Critical Pfeiffer Vacuum GmbH
Priority to EP15158925.6A priority Critical patent/EP3067565B1/en
Priority to JP2016039623A priority patent/JP6195638B2/en
Publication of EP3067565A1 publication Critical patent/EP3067565A1/en
Application granted granted Critical
Publication of EP3067565B1 publication Critical patent/EP3067565B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular 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
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/168—Pumps specially adapted to produce a vacuum
    • 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
    • F04D29/403—Casings; Connections of working fluid 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps

Definitions

  • the present invention relates to a vacuum pump with a housing.
  • Vacuum pumps are used in a wide variety of applications. They can be paired with a variety of devices to provide a vacuum needed for a particular process. The respective attachment or installation depends significantly on the available space.
  • vacuum pumps can be provided with a variety of different accessory components. These include, but are not limited to, fans, baffles, heatsinks, or water cooling components.
  • the vacuum pump should be adaptable to the respective circumstances in the simplest possible way.
  • the housing of the vacuum pump has at least one groove-like depression, with which at least one base element for fastening components to the vacuum pump or the vacuum pump is coupled to other units. Additionally or alternatively, the housing is connected to a member having at least one groove-like connection, with which the above-mentioned base member is coupled.
  • the element may be, for example, a bar connected to the housing in any manner provided with the groove-like recess. In principle, the shape and size of the element as well as the number and configuration of the recesses provided on the element can be adapted to the respectively present requirements.
  • the housing In order to adapt the vacuum pump to the customer-specific conditions or wishes, the housing usually no longer has to be machined, or at least significantly less, but it is usually sufficient to adapt the base element.
  • the base element is releasably connected to the groove-like depression. If the vacuum pump to be installed in a different location and / or connected to other accessories components, so no additional attachment points must be created directly on the housing of the pump, since the base element can be replaced quickly and easily.
  • the base element can be inserted into the groove-like depression.
  • the groove-like depression can be open on one side. It is understood that the one-sided opening of the groove-like depression can be closed if necessary with a cap or the like.
  • the base element it is also possible to design the base element so that it can be clipped into the groove-like depression.
  • such a configuration is advantageous because it allows a simple and quick coupling of the base member with the groove-like depression.
  • the groove-like depression may extend at least in sections, in particular completely parallel to a longitudinal axis of the housing.
  • the groove-like depression may also extend at least in sections, in particular completely in the circumferential direction of the housing.
  • the course and the arrangement of the groove can be chosen so that the highest possible flexibility with regard to the provision of attachment points is achieved. The same applies to the number of provided on the housing groove-like depressions.
  • the base member may be substantially completely received by the groove-like depression, so that the base member does not form a protruding out of the housing contour, which may be disturbing.
  • the base element has or forms a contact surface which is spaced from the surface of the housing.
  • the base element serves - in addition to its function as a flexibly configurable component of the fastening concept - as a spacer, so that the housing of the pump is protected against surface damage (eg scratches).
  • the groove-like depression has an undercut which cooperates with at least one bulge or a projection of the base element.
  • the groove-like depression is formed in a cross-section perpendicular to the longitudinal extent T-shaped.
  • the base member may have substantially the same length as the groove-like recess, so that it fills this almost completely at least in the longitudinal direction. Basically, it is of course also possible to use a shorter base element. In this case, multiple base elements can also be used to provide the required number of attachment points.
  • the base member may be freely slidable in the groove-like depression and fixed only during assembly in its intended position, for example by a frictional connection.
  • the base element may comprise a cover profile which substantially covers and / or closes the groove-like depression.
  • the base element has at least one threaded bore, with the aid of which the vacuum pump can be fastened to other units and / or components can be fastened to the vacuum pump.
  • the base member may also have a recess extending along the longitudinal extent thereof.
  • the base element is a screw bar into which a screw can be screwed at arbitrary locations.
  • the housing is formed according to an advantageous embodiment, at least partially by an extrusion process, wherein the groove-like depression already in This process is introduced into the housing.
  • the groove-like depression can also provide other advantageous functions.
  • it can serve as a cable channel.
  • Fig. 1 shows a vacuum pump 10, which is for example a turbo pump. In such pumps, it may - as explained above - be desired to attach to the outside of accessories or attach them to other devices.
  • a vacuum pump 10 which is for example a turbo pump. In such pumps, it may - as explained above - be desired to attach to the outside of accessories or attach them to other devices.
  • the grooves 14 extend substantially completely along the longitudinal extent of a housing base 16, which at its in Fig. 1 right axial end with a housing end portion 18 and at its left end with a lid 20 is closed.
  • the housing base 16 accommodates all essential functional components of the vacuum pump 10.
  • base elements 22a, 22b, 22c and 22d are arranged, the design and function will be explained in more detail below.
  • the housing end portion 18 also has a groove 14 ', in which, if necessary, a base element in the manner of the base elements 22a, 22b, 22c, 22d can be inserted or inserted.
  • the housing base 16 of the housing 12 has been produced in the embodiment by an extrusion process.
  • the grooves 14 can be introduced directly into the semifinished product.
  • the groove 14 'of the housing end portion 18 of the housing 12 may be formed, for example, by a machining process.
  • Fig. 2 shows a section of the housing base body 16 with a portion of the base member 22a in an enlargement.
  • the groove 14 has a substantially T-shaped cross section, which is formed by projections 24.
  • the projections 24 form undercuts which cooperate with protrusions 26 provided on the base member 22a.
  • the bulges 26 are arranged on legs 30 protruding into the groove from a cover section 28 of the base element 22a.
  • the base element 22a is thus a profile piece with a substantially U-shaped basic shape.
  • the base member 22a covers the groove 14 substantially completely, so that it is protected from dirt. In the groove 14 cables can be performed if necessary.
  • the base element 22a serves in particular to provide customer or application-specific attachment points.
  • the base element 22a serves in particular to provide customer or application-specific attachment points.
  • bores (not shown) can be screwed into the mounting screws (not shown).
  • the mounting screws act in their assembly with from the legs 30 inwardly projecting and inclined to these arranged spreading sections 32 together.
  • the spreading portions 32 cause the screwed-in fixing screws to push apart the legs 32, whereby the bulges 26 cooperate even more efficiently with the undercut forming projections 24 to reliably couple the base member 22 a to the housing 12.
  • the bore in the cover portion 28 can be drilled in any position before or after the introduction of the base member 22a in the groove 14.
  • the introduction of the base member 22a in the groove 14 can be realized by lateral insertion or - with appropriate elasticity of the base member 22a - by clipping.
  • the base member 22a in which the cover portion 28 is located substantially in the same plane as the groove 14 adjacent portions of the surface of the housing 12, the base member may protrude from the groove 14.
  • the cover portion of such a base element could then be used as a contact surface, so that the component to be fastened does not rest directly on the housing 12.
  • the protruding from the groove 14 portion of the base member then forms a spacer to protect the housing 12.
  • Fig. 3 shows a further embodiment 22b of the base member, which at least functionally corresponds to a screw strip.
  • Projections 24 'on the outside of the legs 30 of the base member 20b cooperate with the projections 24 of the groove 14.
  • Fixing screws can be screwed at any point in the likewise formed as a profile piece base member 22b, which in turn the legs 30 are pressed apart and the base member 22b is finally securely fixed in the groove 14.
  • the base element 22b can likewise be introduced into the groove 14 by insertion or clipping. A preparation of the base member 22b is usually not required.
  • the base member 22c of the base member discrete holes 34 provided at the respectively required locations.
  • the holes 34 are threaded holes. If a fastening screw is inserted into the threaded bores 34 for fastening a component to the housing 12 and / or for fastening the vacuum pump 10 to another unit, the strip-like base element 22c is pressed against the projections 24, resulting in a reliable frictional connection.
  • the fastening concept according to the invention which is based on a coupling of a basic element which can be produced inexpensively and a groove-like depression introduced into the housing of the vacuum pump, makes it possible to provide attachment points with very flexibility, without compromising the reliability of the fastening.

Abstract

Die Erfindung betrifft eine Vakuumpumpe mit einem Gehäuse (12), das zumindest eine nutartige Vertiefung (14, 14') aufweist, mit der zumindest ein Basiselement (22a, 22b, 22c, 22d) zur Befestigung von Komponenten an der Vakuumpumpe oder der Vakuumpumpe an anderen Einheiten gekoppelt ist. Zusätzlich oder alternativ ist das Gehäuse (12) mit einem Element verbunden, das zumindest eine nutartige Vertiefung (14, 14') aufweist, mit der das vorstehend genannte Basiselement (22a, 22b, 22c, 22d) gekoppelt ist.The invention relates to a vacuum pump having a housing (12) which has at least one groove-like depression (14, 14 ') with which at least one base element (22a, 22b, 22c, 22d) for fastening components to the vacuum pump or the vacuum pump coupled to other units. Additionally or alternatively, the housing (12) is connected to a member having at least one groove-like recess (14, 14 ') to which the above-mentioned base member (22a, 22b, 22c, 22d) is coupled.

Description

Die vorliegende Erfindung betrifft eine Vakuumpumpe mit einem Gehäuse.The present invention relates to a vacuum pump with a housing.

Vakuumpumpen gelangen in den unterschiedlichsten Anwendungen zum Einsatz. Sie können mit den verschiedensten Geräten gekoppelt werden, um ein für einen bestimmten Prozess benötigtes Vakuum bereitzustellen. Die jeweilige An- oder Einbausituation hängt dabei maßgeblich von dem zur Verfügung stehenden Bauraum ab. Außerdem können Vakuumpumpen mit einer Vielzahl von unterschiedlichen Zubehörbauteilen versehen werden. Hierzu gehören unter anderem Lüfter, Luftleitbleche, Kühlkörper oder Komponenten einer Wasserkühlung.Vacuum pumps are used in a wide variety of applications. They can be paired with a variety of devices to provide a vacuum needed for a particular process. The respective attachment or installation depends significantly on the available space. In addition, vacuum pumps can be provided with a variety of different accessory components. These include, but are not limited to, fans, baffles, heatsinks, or water cooling components.

Zur Befestigung von Komponenten an der Vakuumpumpe oder der Vakuumpumpe an anderen Einheiten werden in das Gehäuse der Vakuumpumpe herkömmlicherweise an den jeweils erforderlichen Stellen Gewindebohrungen eingebracht. Dies ermöglicht die zuverlässige Befestigung der genannten Komponenten bzw. der Vakuumpumpe in der jeweils gewünschten Einbaulage. Allerdings müssen die Bohrungen für jeden Anwendungsfall spezifisch platziert werden.To attach components to the vacuum pump or the vacuum pump to other units threaded holes are conventionally introduced into the housing of the vacuum pump at the respectively required locations. This allows the reliable attachment of said components or the vacuum pump in the respective desired installation position. However, the holes must be placed specifically for each application.

Es ist daher eine Aufgabe der vorliegenden Erfindung, eine Vakuumpumpe zu schaffen, die auf einfache Weise flexibel einsetzbar ist. Mit anderen Worten soll die Vakuumpumpe auf möglichst einfache Weise an die jeweils vorliegenden Umstände anpassbar sein.It is therefore an object of the present invention to provide a vacuum pump which can be used flexibly in a simple manner. In other words, the vacuum pump should be adaptable to the respective circumstances in the simplest possible way.

Diese Aufgabe wird durch eine Vakuumpumpe mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a vacuum pump with the features of claim 1.

Erfindungsgemäß weist das Gehäuse der Vakuumpumpe zumindest eine nutartige Vertiefung auf, mit der zumindest ein Basiselement zur Befestigung von Komponenten an der Vakuumpumpe oder der Vakuumpumpe an anderen Einheiten gekoppelt ist. Zusätzlich oder alternativ ist das Gehäuse mit einem Element verbunden, das zumindest eine nutartige Verbindung aufweist, mit der das vorstehend genannte Basiselement gekoppelt ist. Das Element kann beispielsweise eine mit dem Gehäuse auf beliebige Weise verbundene Leiste sein, die mit der nutartigen Vertiefung versehen ist. Grundsätzlich können die Formgebung und Größe des Elements sowie die Anzahl und Ausgestaltung der an dem Element vorgesehenen Vertiefungen an die jeweils vorliegenden Anforderungen angepasst sein.According to the invention, the housing of the vacuum pump has at least one groove-like depression, with which at least one base element for fastening components to the vacuum pump or the vacuum pump is coupled to other units. Additionally or alternatively, the housing is connected to a member having at least one groove-like connection, with which the above-mentioned base member is coupled. The element may be, for example, a bar connected to the housing in any manner provided with the groove-like recess. In principle, the shape and size of the element as well as the number and configuration of the recesses provided on the element can be adapted to the respectively present requirements.

D.h. die jeweils erforderlichen Zubehörkomponenten werden erfindungsgemäß über das mit der Vertiefung gekoppelte Basiselement an dem Gehäuse fixiert. Analoges gilt für die Befestigung der Pumpe an anderen Einheiten. Um die Vakuumpumpe an die kundenspezifischen Bedingungen bzw. Wünsche anzupassen, muss das Gehäuse in der Regel nicht mehr oder zumindest deutlich weniger bearbeitet werden, sondern es reicht zumeist aus, das Basiselement anzupassen.That the respective required accessory components are fixed according to the invention via the base element coupled to the recess on the housing. The same applies to the attachment of the pump to other units. In order to adapt the vacuum pump to the customer-specific conditions or wishes, the housing usually no longer has to be machined, or at least significantly less, but it is usually sufficient to adapt the base element.

Weitere Ausführungsformen der Erfindung sind in der Beschreibung, den Ansprüchen und den Zeichnungen angegeben.Further embodiments of the invention are given in the description, the claims and the drawings.

Gemäß einer vorteilhaften Ausführungsform ist das Basiselement lösbar mit der nutartigen Vertiefung verbunden. Wenn die Vakuumpumpe an einem anderen Ort verbaut werden soll und/oder mit anderen Zubehörkomponenten verbunden werden soll, so müssen keine zusätzlichen Befestigungspunkte direkt am Gehäuse der Pumpe geschaffen werden, da das Basiselement schnell und einfach ausgetauscht werden kann.According to an advantageous embodiment, the base element is releasably connected to the groove-like depression. If the vacuum pump to be installed in a different location and / or connected to other accessories components, so no additional attachment points must be created directly on the housing of the pump, since the base element can be replaced quickly and easily.

Insbesondere ist das Basiselement in die nutartige Vertiefung einschiebbar. Zu diesem Zweck kann die nutartige Vertiefung einseitig offen sein. Es versteht sich, dass die einseitige Öffnung der nutartigen Vertiefung bei Bedarf mit einer Kappe oder ähnlichem geschlossen werden kann.In particular, the base element can be inserted into the groove-like depression. For this purpose, the groove-like depression can be open on one side. It is understood that the one-sided opening of the groove-like depression can be closed if necessary with a cap or the like.

Es ist auch möglich, das Basiselement so auszugestalten, dass es in die nutartige Vertiefung einklipsbar ist. Insbesondere für eine Vormontage ist eine solche Ausgestaltung vorteilhaft, da sie eine einfache und schnelle Kopplung des Basiselements mit der nutartigen Vertiefung ermöglicht.It is also possible to design the base element so that it can be clipped into the groove-like depression. In particular, for a pre-assembly, such a configuration is advantageous because it allows a simple and quick coupling of the base member with the groove-like depression.

Die nutartige Vertiefung kann sich zumindest abschnittsweise, insbesondere vollständig parallel zu einer Längsachse des Gehäuses erstrecken. Die nutartige Vertiefung kann sich auch zumindest abschnittsweise, insbesondere vollständig in Umfangsrichtung des Gehäuses erstrecken. Grundsätzlich können der Verlauf und die Anordnung der Nut so gewählt werden, dass eine höchstmögliche Flexibilität hinsichtlich der Bereitstellung von Befestigungspunkten erreicht wird. Gleiches gilt für die Anzahl von an dem Gehäuse vorgesehenen nutartigen Vertiefungen.The groove-like depression may extend at least in sections, in particular completely parallel to a longitudinal axis of the housing. The groove-like depression may also extend at least in sections, in particular completely in the circumferential direction of the housing. In principle, the course and the arrangement of the groove can be chosen so that the highest possible flexibility with regard to the provision of attachment points is achieved. The same applies to the number of provided on the housing groove-like depressions.

Das Basiselement kann im Wesentlichen vollständig von der nutartigen Vertiefung aufgenommen werden, so dass das Basiselement keine aus dem Gehäuse hervorstehende Kontur bildet, die eventuell störend ist.The base member may be substantially completely received by the groove-like depression, so that the base member does not form a protruding out of the housing contour, which may be disturbing.

Alternativ kann aber auch bewusst vorgesehen sein, dass das Basiselement eine Anlagefläche aufweist oder bildet, die von der Oberfläche des Gehäuses beabstandet ist. Das Basiselement dient in diesem Fall - neben seiner Funktion als flexibel konfigurierbare Komponente des Befestigungskonzepts - als Abstandshalter, so dass das Gehäuse der Pumpe vor Oberflächenbeschädigungen (z.B. Kratzer) geschützt wird.Alternatively, however, it may also be deliberately provided that the base element has or forms a contact surface which is spaced from the surface of the housing. In this case, the base element serves - in addition to its function as a flexibly configurable component of the fastening concept - as a spacer, so that the housing of the pump is protected against surface damage (eg scratches).

Gemäß einer vorteilhaften Ausführungsform weist die nutartige Vertiefung einen Hinterschnitt auf, der mit zumindest einer Ausbuchtung oder einem Vorsprung des Basiselements zusammenwirkt. Insbesondere ist die nutartige Vertiefung in einem Querschnitt senkrecht zu der Längserstreckung T-förmig ausgebildet.According to an advantageous embodiment, the groove-like depression has an undercut which cooperates with at least one bulge or a projection of the base element. In particular, the groove-like depression is formed in a cross-section perpendicular to the longitudinal extent T-shaped.

Das Basiselement kann im Wesentlichen die gleiche Länge wie die nutartige Vertiefung aufweisen, so dass es diese zumindest in Längsrichtung praktisch vollständig ausfüllt. Grundsätzlich ist es aber natürlich auch möglich, ein kürzeres Basiselement zu verwenden. In diesem Fall können auch mehrere Basiselemente verwendet werden, um die benötigte Anzahl von Befestigungspunkten bereit zu stellen.The base member may have substantially the same length as the groove-like recess, so that it fills this almost completely at least in the longitudinal direction. Basically, it is of course also possible to use a shorter base element. In this case, multiple base elements can also be used to provide the required number of attachment points.

Das Basiselement kann in der nutartigen Vertiefung frei verschiebbar sein und erst bei der Montage in ihrer vorgesehenen Lage fixiert werden, beispielsweise durch einen Kraftschluss.The base member may be freely slidable in the groove-like depression and fixed only during assembly in its intended position, for example by a frictional connection.

Um das Eindringen von Verschmutzungen in die nutartige Vertiefung zu verhindern und der Vakuumpumpe auch eine optisch ansprechende Prägung zu geben, kann das Basiselement ein Abdeckprofil umfassen, das die nutartige Vertiefung im Wesentlichen abdeckt und/oder verschließt.In order to prevent the ingress of contaminants in the groove-like depression and also to give the vacuum pump a visually attractive embossing, the base element may comprise a cover profile which substantially covers and / or closes the groove-like depression.

Gemäß einer Ausführungsform weist das Basiselement zumindest eine Gewindebohrung auf, mit Hilfe derer die Vakuumpumpe an anderen Einheiten befestigbar ist und/oder Komponenten an der Vakuumpumpe befestigt werden können. Das Basiselement kann auch eine Ausnehmung aufweisen, die sich entlang deren Längserstreckung erstreckt. Beispielsweise ist das Basiselement eine Schraubleiste, in die an beliebigen Stellen eine Schraube einschraubbar ist.According to one embodiment, the base element has at least one threaded bore, with the aid of which the vacuum pump can be fastened to other units and / or components can be fastened to the vacuum pump. The base member may also have a recess extending along the longitudinal extent thereof. For example, the base element is a screw bar into which a screw can be screwed at arbitrary locations.

Das Gehäuse ist gemäß einer vorteilhaften Ausführungsform zumindest teilweise durch einen Strangpressprozess geformt, wobei die nutartige Vertiefung bereits im Zuge dieses Prozesses in das Gehäuse eingebracht wird. Grundsätzlich ist es auch möglich, die nutartige Vertiefung durch einen spanenden Prozess in das Gehäuse einzubringen und/oder anzupassen.The housing is formed according to an advantageous embodiment, at least partially by an extrusion process, wherein the groove-like depression already in This process is introduced into the housing. In principle, it is also possible to introduce the groove-like depression by a cutting process in the housing and / or adapt.

Neben ihrer Funktion als Bestandteil des Befestigungskonzepts kann die nutartige Vertiefung auch andere vorteilhafte Funktionen bereitstellen. Beispielsweise kann sie als Kabelkanal dienen.In addition to their function as part of the fastening concept, the groove-like depression can also provide other advantageous functions. For example, it can serve as a cable channel.

Nachfolgend wird die vorliegende Erfindung rein beispielhaft anhand vorteilhafter Ausführungsformen unter Bezugnahme auf die beigefügten Zeichnungen erläutert. Es zeigen:

Fig. 1
eine Ausführungsform der erfindungsgemäßen Vakuumpumpe und
Fig. 2 bis 5
verschiedene Ausführungsformen des Basiselements.
Hereinafter, the present invention will be explained purely by way of example with reference to advantageous embodiments with reference to the accompanying drawings. Show it:
Fig. 1
an embodiment of the vacuum pump according to the invention and
Fig. 2 to 5
various embodiments of the base element.

Fig. 1 zeigt eine Vakuumpumpe 10, die beispielsweise eine Turbopumpe ist. Bei derartigen Pumpen kann es - wie eingangs erläutert - gewünscht sein, an deren Äußeren Zubehör anzubringen oder sie an anderen Vorrichtungen zu befestigen. Um zu verhindern, dass für jede Konfiguration und/oder Bauraumsituation kundenspezifische Gewindebohrungen in ein Gehäuse 12 der Vakuumpumpe 10 eingebracht werden müssen, ist dieses mit Nuten 14 versehen. Die Nuten 14 erstrecken sich im Wesentlichen vollständig entlang der Längserstreckung eines Gehäusegrundkörpers 16, der an seinem in Fig. 1 rechten axialen Ende mit einem Gehäuseendabschnitt 18 und an seinem linken Ende mit einem Deckel 20 verschlossen ist. Der Gehäusegrundkörper 16 nimmt alle wesentlichen Funktionskomponenten der Vakuumpumpe 10 auf. In den Nuten 14 sind Basiselemente 22a, 22b, 22c bzw. 22d angeordnet, deren Gestaltung und Funktion nachfolgend noch eingehender erläutert wird. Fig. 1 shows a vacuum pump 10, which is for example a turbo pump. In such pumps, it may - as explained above - be desired to attach to the outside of accessories or attach them to other devices. In order to prevent customer-specific threaded bores from having to be introduced into a housing 12 of the vacuum pump 10 for each configuration and / or installation space situation, this is provided with grooves 14. The grooves 14 extend substantially completely along the longitudinal extent of a housing base 16, which at its in Fig. 1 right axial end with a housing end portion 18 and at its left end with a lid 20 is closed. The housing base 16 accommodates all essential functional components of the vacuum pump 10. In the grooves 14 base elements 22a, 22b, 22c and 22d are arranged, the design and function will be explained in more detail below.

Der Gehäuseendabschnitt 18 weist ebenfalls eine Nut 14' auf, in die bei Bedarf ein Basiselement in der Art der Basiselemente 22a, 22b, 22c, 22d eingesteckt bzw. eingeschoben werden kann.The housing end portion 18 also has a groove 14 ', in which, if necessary, a base element in the manner of the base elements 22a, 22b, 22c, 22d can be inserted or inserted.

Es versteht sich, dass die Anordnung und/oder Ausgestaltung der Nuten 14, 14' so gewählt werden kann, dass im Wesentlichen alle vernünftigerweise zu erwartenden/benötigten Konfigurationen von Befestigungspunkten bereitgestellt werden können.It will be appreciated that the arrangement and / or configuration of the grooves 14, 14 'may be chosen to provide substantially all reasonably expected / required configurations of attachment points.

Der Gehäusegrundkörper 16 des Gehäuses 12 ist bei dem Ausführungsbeispiel durch einen Strangpressprozess hergestellt worden. Bei diesem Herstellungsprozess können die Nuten 14 gleich direkt in das Halbzeug eingebracht werden. Die Nut 14' des Gehäuseendabschnitts 18 des Gehäuses 12 kann beispielsweise durch einen spanenden Prozess erzeugt worden sein.The housing base 16 of the housing 12 has been produced in the embodiment by an extrusion process. In this manufacturing process, the grooves 14 can be introduced directly into the semifinished product. The groove 14 'of the housing end portion 18 of the housing 12 may be formed, for example, by a machining process.

Fig. 2 zeigt einen Ausschnitt des Gehäusegrundkörpers 16 mit einem Abschnitt des Basiselements 22a in einer Vergrößerung. Die Nut 14 weist einen im Wesentlichen T-förmigen Querschnitt auf, der durch Vorsprünge 24 gebildet wird. Die Vorsprünge 24 bilden Hinterschneidungen, die mit Ausbuchtungen 26 zusammenwirken, die an dem Basiselement 22a vorgesehen sind. Die Ausbuchtungen 26 sind an von einem Deckabschnitt 28 in die Nut ragenden Schenkeln 30 des Basiselements 22a angeordnet. Das Basiselement 22a ist somit ein Profilstück mit einer im Wesentlichen U-förmigen Grundform. Das Basiselement 22a deckt die Nut 14 im Wesentlichen vollständig ab, so dass diese vor Schmutz geschützt ist. In der Nut 14 können bei Bedarf Kabel geführt werden. Fig. 2 shows a section of the housing base body 16 with a portion of the base member 22a in an enlargement. The groove 14 has a substantially T-shaped cross section, which is formed by projections 24. The projections 24 form undercuts which cooperate with protrusions 26 provided on the base member 22a. The bulges 26 are arranged on legs 30 protruding into the groove from a cover section 28 of the base element 22a. The base element 22a is thus a profile piece with a substantially U-shaped basic shape. The base member 22a covers the groove 14 substantially completely, so that it is protected from dirt. In the groove 14 cables can be performed if necessary.

Das Basiselement 22a dient aber insbesondere dazu, kunden- oder anwendungsspezifische Befestigungspunkte bereitzustellen. Zu diesem Zweck werden an den gewünschten Stellen in den Deckabschnitt 28 des Basiselements 22a Bohrungen (nicht gezeigt) eingebracht, in die Befestigungsschrauben (nicht gezeigt) geschraubt werden können. Die Befestigungsschrauben wirken bei ihrer Montage mit von den Schenkeln 30 nach innen ragenden und geneigt zu diesen angeordneten Spreizabschnitten 32 zusammen. Die Spreizabschnitte 32 bewirken, dass die eingeschraubten Befestigungsschrauben die Schenkel 32 auseinanderdrücken, wodurch die Ausbuchtungen 26 noch effizienter mit den Hinterschnitte bildenden Vorsprüngen 24 zusammenwirken, um das Basiselement 22a zuverlässig mit dem Gehäuse 12 zu koppeln.However, the base element 22a serves in particular to provide customer or application-specific attachment points. For this purpose, at the desired locations in the cover portion 28 of the base member 22 a bores (not shown) can be screwed into the mounting screws (not shown). The mounting screws act in their assembly with from the legs 30 inwardly projecting and inclined to these arranged spreading sections 32 together. The spreading portions 32 cause the screwed-in fixing screws to push apart the legs 32, whereby the bulges 26 cooperate even more efficiently with the undercut forming projections 24 to reliably couple the base member 22 a to the housing 12.

Die Bohrung in dem Deckabschnitt 28 können in beliebiger Position vor oder nach dem Einbringen des Basiselements 22a in die Nut 14 eingebohrt werden. Das Einbringen des Basiselements 22a in die Nut 14 kann durch seitliches Einschieben oder - bei entsprechender Elastizität des Basiselements 22a - durch Einklipsen realisiert werden.The bore in the cover portion 28 can be drilled in any position before or after the introduction of the base member 22a in the groove 14. The introduction of the base member 22a in the groove 14 can be realized by lateral insertion or - with appropriate elasticity of the base member 22a - by clipping.

Abweichend von der in Fig. 2 gezeigten Ausgestaltung des Basiselements 22a, bei der sich der Deckabschnitt 28 im Wesentlichen in der gleichen Ebene befindet, wie die der Nut 14 benachbarten Abschnitte der Oberfläche des Gehäuses 12, kann das Basiselement aus der Nut 14 herausragen. Der Deckabschnitt eines solchen Basiselements könnte dann als Anlagefläche genutzt werden, so dass die zu befestigende Komponente nicht direkt auf dem Gehäuse 12 aufliegt. Letztlich bildet der aus der Nut 14 herausragende Teil des Basiselements dann einen Abstandshalter, um das Gehäuse 12 zu schützen.Notwithstanding the in Fig. 2 As shown, the embodiment of the base member 22a, in which the cover portion 28 is located substantially in the same plane as the groove 14 adjacent portions of the surface of the housing 12, the base member may protrude from the groove 14. The cover portion of such a base element could then be used as a contact surface, so that the component to be fastened does not rest directly on the housing 12. Finally, the protruding from the groove 14 portion of the base member then forms a spacer to protect the housing 12.

Fig. 3 zeigt eine weitere Ausführungsform 22b des Basiselements, die zumindest funktionell einer Schraubleiste entspricht. Vorsprünge 24' an der Außenseite der Schenkel 30 des Basiselements 20b wirken mit den Vorsprüngen 24 der Nut 14 zusammen. Befestigungsschrauben können an beliebiger Stelle in das ebenfalls als Profilstück ausgebildete Basiselement 22b eingeschraubt werden, wodurch wiederum die Schenkel 30 auseinandergedrückt werden und das Basiselement 22b letztlich sicher in der Nut 14 fixiert wird. Das Basiselement 22b ist ebenfalls durch Einschieben oder Einklipsen in die Nut 14 einbringbar. Eine Vorbereitung des Basiselements 22b ist in der Regel nicht erforderlich. Fig. 3 shows a further embodiment 22b of the base member, which at least functionally corresponds to a screw strip. Projections 24 'on the outside of the legs 30 of the base member 20b cooperate with the projections 24 of the groove 14. Fixing screws can be screwed at any point in the likewise formed as a profile piece base member 22b, which in turn the legs 30 are pressed apart and the base member 22b is finally securely fixed in the groove 14. The base element 22b can likewise be introduced into the groove 14 by insertion or clipping. A preparation of the base member 22b is usually not required.

Im Gegensatz dazu sind bei der in Fig. 4 gezeigten Ausführungsform 22c des Basiselements diskrete Bohrungen 34 an den jeweils erforderlichen Stellen vorgesehen. Die Bohrungen 34 sind Gewindebohrungen. Bringt man zur Befestigung einer Komponente an dem Gehäuse 12 und/oder zur Befestigung der Vakuumpumpe 10 an einer anderen Einheit eine Befestigungsschraube in die Gewindebohrungen 34 ein, so wird das leistenartige Basiselement 22c gegen die Vorsprünge 24 gedrückt, so dass ein zuverlässiger Kraftschluss entsteht.In contrast, at the in Fig. 4 shown embodiment 22c of the base member discrete holes 34 provided at the respectively required locations. The holes 34 are threaded holes. If a fastening screw is inserted into the threaded bores 34 for fastening a component to the housing 12 and / or for fastening the vacuum pump 10 to another unit, the strip-like base element 22c is pressed against the projections 24, resulting in a reliable frictional connection.

Anstelle eines durchgehenden leistenförmigen Basiselements 22c, das im Wesentlichen die volle Länge der Nut 14 ausfüllt, können auch einzelne Nutensteine 22d vorgesehen sein (siehe Fig. 5), deren Funktionsweise aber im Wesentlichen der des Basiselements 22c entspricht.Instead of a continuous strip-shaped base member 22c, which fills substantially the full length of the groove 14, and individual sliding blocks 22d may be provided (see Fig. 5 ), whose operation, however, essentially corresponds to that of the base element 22c.

Das erfindungsgemäße Befestigungskonzept, das auf einer Kopplung eines kostengünstig herzustellenden Basiselements und einer in das Gehäuse der Vakuumpumpe eingebrachten nutartigen Vertiefung beruht, ermöglicht eine sehr flexible Bereitstellung von Befestigungspunkten, ohne dass Abstriche bei der Zuverlässigkeit der Befestigung gemacht werden müssen.The fastening concept according to the invention, which is based on a coupling of a basic element which can be produced inexpensively and a groove-like depression introduced into the housing of the vacuum pump, makes it possible to provide attachment points with very flexibility, without compromising the reliability of the fastening.

Bezugszeichenreference numeral

1010
Vakuumpumpevacuum pump
1212
Gehäusecasing
14, 14'14, 14 '
Nutgroove
1616
GehäusegrundkörperHousing body
1818
Gehäuseendabschnitthousing end
2020
Deckelcover
22a, 22b, 22c, 22d22a, 22b, 22c, 22d
Basiselementbase element
24, 24'24, 24 '
Vorsprunghead Start
2626
Ausbuchtungbulge
2828
Deckabschnittdeck section
3030
Schenkelleg
3232
Spreizabschnittspreading
3434
Gewindebohrungthreaded hole

Claims (13)

Vakuumpumpe mit einem Gehäuse (12), das zumindest eine nutartige Vertiefung (14, 14') aufweist und/oder mit einem Element, das zumindest eine nutartige Vertiefung aufweist, verbunden ist, wobei mit der nutartigen Vertiefung zumindest ein Basiselement (22a, 22b, 22c, 22d) zur Befestigung von Komponenten an der Vakuumpumpe oder der Vakuumpumpe an anderen Einheiten gekoppelt ist.Vacuum pump having a housing (12) which has at least one groove-like depression (14, 14 ') and / or is connected to an element which has at least one groove-like depression, wherein with the groove-like depression at least one base element (22a, 22b, 22c, 22d) for attaching components to the vacuum pump or the vacuum pump to other units. Vakuumpumpe nach Anspruch 1,
dadurch gekennzeichnet, dass
das Basiselement (22a, 22b, 22c, 22d) lösbar mit der nutartigen Vertiefung (14, 14') verbunden ist.Vacuum pump according to claim 1,
characterized in that
the base member (22a, 22b, 22c, 22d) is detachably connected to the groove-like recess (14, 14 '). Vakuumpumpe nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass
das Basiselement (22a, 22b, 22c, 22d) in die nutartige Vertiefung (14, 14'), die insbesondere zumindest einseitig offen ist, einschiebbar ist.Vacuum pump according to claim 1 or 2,
characterized in that
the base element (22a, 22b, 22c, 22d) can be pushed into the groove-like depression (14, 14 '), which in particular is open at least on one side. Vakuumpumpe nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
das Basiselement (22a, 22b) in die nutartige Vertiefung (14, 14') einklipsbar ist.Vacuum pump according to at least one of the preceding claims,
characterized in that
the base element (22a, 22b) can be clipped into the groove-like depression (14, 14 '). Vakuumpumpe nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
das Basiselement (22a, 22b, 22c, 22d) im Wesentlichen vollständig von der nutartigen Vertiefung (14, 14') aufgenommen wird.Vacuum pump according to at least one of the preceding claims,
characterized in that
the base member (22a, 22b, 22c, 22d) is substantially completely received by the groove-like recess (14, 14 '). Vakuumpumpe nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
sich die nutartige Vertiefung (14) zumindest abschnittsweise, insbesondere vollständig parallel zu einer Längsachse des Gehäuses (12) erstreckt und/oder dass sich die nutartige Vertiefung (14') zumindest abschnittsweise, insbesondere vollständig in Umfangsrichtung des Gehäuses (12) erstreckt.Vacuum pump according to at least one of the preceding claims,
characterized in that
the groove-like depression (14) extends at least in sections, in particular completely parallel to a longitudinal axis of the housing (12), and / or that the groove-like depression (14 ') extends at least in sections, in particular completely in the circumferential direction of the housing (12). Vakuumpumpe nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
das Basiselement (22a) eine Anlagefläche (28) aufweist, die von der Oberfläche des Gehäuses beabstandet ist.Vacuum pump according to at least one of the preceding claims,
characterized in that
the base member (22a) has a bearing surface (28) spaced from the surface of the housing. Vakuumpumpe nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
die nutartige Vertiefung (14, 14') einen Hinterschnitt (24) aufweist, der mit zumindest einer Ausbuchtung (26, 24') oder einem Vorsprung des Basiselements (22a, 22b) zusammenwirkt, insbesondere wobei die nutartige Vertiefung (14, 14') in einem Querschnitt senkrecht zu ihrer Längserstreckung T-förmig ausgebildet ist.Vacuum pump according to at least one of the preceding claims,
characterized in that
the groove-like depression (14, 14 ') has an undercut (24) which cooperates with at least one bulge (26, 24') or a projection of the base element (22a, 22b), in particular with the groove-like depression (14, 14 ') is formed in a cross-section perpendicular to its longitudinal extent T-shaped. Vakuumpumpe nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass das Basiselement (22a, 22b, 22c) in Wesentlichen die gleiche Länge wie die nutartige Vertiefung (14, 14') aufweist.Vacuum pump according to at least one of the preceding claims,
characterized in that the base member (22a, 22b, 22c) has substantially the same length as the groove-like recess (14, 14 '). Vakuumpumpe nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
das Basiselement (22a, 22c) ein Abdeckprofil umfasst, das die nutartige Vertiefung (14, 14') im Wesentlichen abdeckt und/oder verschließt,Vacuum pump according to at least one of the preceding claims,
characterized in that
the base element (22a, 22c) comprises a cover profile which substantially covers and / or closes the groove-like depression (14, 14 '), Vakuumpumpe nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
das Basiselement (22c, 22d) zumindest eine Gewindebohrung (34) umfasst.Vacuum pump according to at least one of the preceding claims,
characterized in that
the base element (22c, 22d) comprises at least one threaded bore (34). Vakuumpumpe nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
das Basiselement (22b) eine Ausnehmung aufweist, die sich entlang deren Längserstreckung erstreckt.Vacuum pump according to at least one of the preceding claims,
characterized in that
the base member (22b) has a recess extending along the longitudinal extent thereof. Vakuumpumpe nach zumindest einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
das Gehäuse (12) zumindest teilweise durch einen Strangpressprozess geformt ist, wobei die nutartige Vertiefung (14, 14') im Zuge dieses Prozesses in das Gehäuse (12) eingebracht wurde.Vacuum pump according to at least one of the preceding claims,
characterized in that
the housing (12) is at least partially formed by an extrusion process, wherein the groove-like depression (14, 14 ') was introduced in the course of this process in the housing (12).
EP15158925.6A 2015-03-13 2015-03-13 Vacuum pump Active EP3067565B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15158925.6A EP3067565B1 (en) 2015-03-13 2015-03-13 Vacuum pump
JP2016039623A JP6195638B2 (en) 2015-03-13 2016-03-02 Vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15158925.6A EP3067565B1 (en) 2015-03-13 2015-03-13 Vacuum pump

Publications (2)

Publication Number Publication Date
EP3067565A1 true EP3067565A1 (en) 2016-09-14
EP3067565B1 EP3067565B1 (en) 2020-07-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3564538A1 (en) * 2019-02-20 2019-11-06 Pfeiffer Vacuum Gmbh Vacuum system and method for manufacturing the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6182013A (en) * 1984-09-28 1986-04-25 株式会社日立製作所 Pawl clamp for clamping flange
DE102005020904A1 (en) * 2005-05-07 2006-11-09 Leybold Vacuum Gmbh Vacuum pump assembly
US20080309071A1 (en) * 2007-06-15 2008-12-18 Varian, Inc. Split joint for vacuum pumps and method for obtaining thereof
EP2133581A2 (en) * 2008-06-12 2009-12-16 Pfeiffer Vacuum GmbH Connecting element
EP2290242A2 (en) * 2009-08-28 2011-03-02 Pfeiffer Vacuum GmbH Vacuum pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63111631U (en) * 1987-01-12 1988-07-18
US20050029417A1 (en) * 2003-08-08 2005-02-10 Richard Scheps Mounting bracket for a rotary pump
DE102013103650A1 (en) * 2013-04-11 2014-10-16 Pfeiffer Vacuum Gmbh vacuum system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6182013A (en) * 1984-09-28 1986-04-25 株式会社日立製作所 Pawl clamp for clamping flange
DE102005020904A1 (en) * 2005-05-07 2006-11-09 Leybold Vacuum Gmbh Vacuum pump assembly
US20080309071A1 (en) * 2007-06-15 2008-12-18 Varian, Inc. Split joint for vacuum pumps and method for obtaining thereof
EP2133581A2 (en) * 2008-06-12 2009-12-16 Pfeiffer Vacuum GmbH Connecting element
EP2290242A2 (en) * 2009-08-28 2011-03-02 Pfeiffer Vacuum GmbH Vacuum pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3564538A1 (en) * 2019-02-20 2019-11-06 Pfeiffer Vacuum Gmbh Vacuum system and method for manufacturing the same

Also Published As

Publication number Publication date
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JP6195638B2 (en) 2017-09-13
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