WO2010045913A2 - Bearing housing for mounting the rotor shaft of a wind energy plant - Google Patents

Bearing housing for mounting the rotor shaft of a wind energy plant Download PDF

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Publication number
WO2010045913A2
WO2010045913A2 PCT/DE2009/001376 DE2009001376W WO2010045913A2 WO 2010045913 A2 WO2010045913 A2 WO 2010045913A2 DE 2009001376 W DE2009001376 W DE 2009001376W WO 2010045913 A2 WO2010045913 A2 WO 2010045913A2
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WO
WIPO (PCT)
Prior art keywords
bearing housing
bearing
rotor shaft
fastening means
cylindrical portion
Prior art date
Application number
PCT/DE2009/001376
Other languages
German (de)
French (fr)
Other versions
WO2010045913A3 (en
Inventor
Lars Andersen
Peter Krämer
Rainer Osthorst
Original Assignee
Aerodyn Energiesysteme 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 Aerodyn Energiesysteme Gmbh filed Critical Aerodyn Energiesysteme Gmbh
Publication of WO2010045913A2 publication Critical patent/WO2010045913A2/en
Publication of WO2010045913A3 publication Critical patent/WO2010045913A3/en

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Classifications

    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/042—Housings for rolling element bearings for rotary movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/546—Systems with spaced apart rolling bearings including at least one angular contact bearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/14—Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/20—Geometry three-dimensional
    • F05B2250/23—Geometry three-dimensional prismatic
    • F05B2250/231—Geometry three-dimensional prismatic cylindrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/30—Arrangement of components
    • F05B2250/31—Arrangement of components according to the direction of their main axis or their axis of rotation
    • F05B2250/312—Arrangement of components according to the direction of their main axis or their axis of rotation the axes being parallel to each other
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
    • F16C19/26—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/31—Wind motors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • Bearing housing for the storage of the rotor shaft of a wind turbine
  • the invention relates to a bearing housing for supporting the rotor shaft of a wind power plant, with a cylindrical portion for receiving the rotor shaft and fastening means for fastening the bearing housing to the wind turbine.
  • the double shaft bearing takes place, for example, within the hub, is integrated in the gearbox or in the machine carrier and designed in the form of two separate bearing housings or combined in a bearing housing.
  • Object of the present invention is therefore to provide a bearing housing for the storage of the rotor shaft of a wind turbine, which can be very compact and simple, with a good load transfer and a simple, not labor-intensive installation in the wind turbine should be possible.
  • the basic idea of the invention is to provide the fastening means for fastening the bearing housing to the wind turbine in the region of the horizontal center line of the wind turbine cylindrical portion of the bearing housing to the cylindrical portion or to the rotor axis to arrange axially parallel.
  • the fastening means which are preferably designed as feet, are arranged approximately at the horizontal height of the axis of rotation of the rotor shaft, resulting in a very good introduction of force into the machine carrier of the wind energy plant.
  • the dominant lateral rotor forces can namely be introduced into the machine carrier in a straight line, without the housing generating additional tilting moments.
  • the position of the housing feet in the region of the center line of the cylindrical portion allows a "sagging" of the lower half of the housing, which ensures a uniform load distribution on the rotor bearings.
  • the bearing housing consists of two in the middle plane of the cylindrical portion releasably interconnected shells.
  • an advantageous construction of the bearing housing is achieved in particular when the lower shell is particularly preferably designed as part of the machine carrier of a wind energy plant.
  • a simple and quick installation of the bearing can be achieved with rotor shaft, without the need for complex tools or a special review of the connection of the fastener.
  • the fastening means are preferably arranged symmetrically to the vertical center line of the cylindrical portion and may be formed as feet or as a flange.
  • the fastening means should be vertically deviating in a region of the center line or in the region of the center plane of approximately + 25% of the diameter of the cylindrical section, particularly preferably ⁇ 10% of the diameter of the cylindrical section (ie between a lower vertical limit of 10%. the cylinder diameter below the center line and an upper vertical limit of 10% of the cylinder diameter above the center line).
  • the bearing housing preferably has one or more plain bearings.
  • the bearing housing is a cylindrical roller bearing and a double row Tapered roller bearing, as this allows a radially as well as axially absolutely backlash-free rotor bearing.
  • the previous use of spherical roller bearings namely has the disadvantage that the rotor shaft design can always move a few millimeters axially, with axially occurring shocks are very harmful to the transmission. This disadvantage can now be eliminated with the bearing housing according to the invention.
  • Fig. 1 is a perspective view of the bearing housing according to the invention.
  • FIG. 3 shows a perspective view of a machine carrier with rotor shaft, bearing housing, gearbox and generator according to the invention.
  • Fig. 4 shows a cross section through the rotor shaft receiving erfmdungswashe bearing housing.
  • Fig. 1 shows the bearing housing according to the invention in a perspective view.
  • the bearing housing 10 has a cylindrical portion 20 for receiving the rotor shaft 80 (not shown here).
  • the fastening means 30 arranged externally on the bearing housing 10 for fastening the bearing housing 10 to a wind power plant can be seen to be arranged axially parallel in the region of the horizontal center line of the cylindrical section 20.
  • the fastening means 30 are here preferably designed as feet. However, the two feet each shown on one side of the bearing housing 10 may also be connected to each other axially parallel, so that the fastening means form a flange.
  • FIG. 2 shows a front view of the bearing housing 10 according to the invention, which in the present example is arranged on a machine carrier 50. It can be clearly seen that the fastening means 30 are arranged in the region of the horizontal center line of the cylindrical portion 20.
  • bearing housing 10 consists of two in the region of the median plane of the cylindrical portion releasably interconnected shells.
  • the lower shell is formed as part of the machine carrier.
  • FIG. 3 shows a perspective view of a machine carrier 50, on which the bearing housing 10 according to the invention, which is provided in front of the transmission housing 90, receives the rotor shaft 80.
  • FIG. 4 shows a cross section through the bearing housing 10 according to the invention, in which a double-row tapered roller bearing 70 paired with a cylindrical roller bearing 60 is accommodated.
  • the tapered roller bearing as well as the cylindrical roller bearing do not allow compensation of misalignment and angular errors, so that the maintenance of the required tolerances make installation in a common housing necessary.
  • the introduction of force into the machine carrier is ensured by the well-illustrated in the other drawings arrangement of the fastening means in the region of the horizontal line of the cylindrical portion.
  • the resulting from the invention advantages are the significantly better power flow design on the machine frame in relation to bearing housings, which are designed for example as a pillow block unit. Furthermore, the production and assembly of the bearing housing according to the invention compared to the known from the prior art bearing housings less expensive. In particular, a coupling of the bearing housing with the transmission is not necessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Wind Motors (AREA)

Abstract

Bearing housing (10) for mounting the rotor shaft (50) of a wind energy plant, comprising a cylindrical section (20) for accommodating the rotor shaft (40) and assembly means (30) for assembling the bearing housing (10) on the wind energy plant, characterised in that the assembly means (30) are arranged parallel to the axis in the region of the horizontal mid-line of the cylindrical section (20).

Description

Lagergehäuse für die Lagerung der Rotorwelle einer Windenergieanlage Bearing housing for the storage of the rotor shaft of a wind turbine
Die Erfindung betrifft ein Lagergehäuse für die Lagerung der Rotorwelle einer Windenergieanlage, mit einem zylindrischen Abschnitt zur Aufnahme der Rotorwelle und Befestigungsmitteln zur Befestigung des Lagergehäuses an der Windenergieanlage.The invention relates to a bearing housing for supporting the rotor shaft of a wind power plant, with a cylindrical portion for receiving the rotor shaft and fastening means for fastening the bearing housing to the wind turbine.
Groß dimensionierte Windenergieanlagen erfordern, dass deren mechanische Komponenten gegen das Auftreten von hohen Lasten abgesichert und zum Ableiten dieser Lasten in den Turm der Windenergieanlage ausgelegt sind. Insbesondere stellt hier die Lagerung der Rotorwelle einer Windenergieanlage ein kritisches Konstruktionselement dar, wobei derzeit auf eine Dreipunkt- Momenten- oder doppelte Wellenlagerung zurückgegriffen wird.Large-scale wind turbines require that their mechanical components are protected against the occurrence of high loads and designed to dissipate these loads in the tower of the wind turbine. In particular, here is the storage of the rotor shaft of a wind turbine a critical design element, which is currently resorting to a three-point torque or double shaft bearing.
Die doppelte Wellenlagerung erfolgt beispielsweise innerhalb der Nabe, ist im Getriebe oder im Maschinenträger integriert und in Form von zwei getrennten Lagergehäusen oder kombiniert in einem Lagergehäuse ausgeführt.The double shaft bearing takes place, for example, within the hub, is integrated in the gearbox or in the machine carrier and designed in the form of two separate bearing housings or combined in a bearing housing.
Eine in einem einzigen Lagergehäuse ausgeführte doppelte Wellenlagerung wird regelmäßig jedoch dadurch konterkariert, dass das Lagergehäuse entweder sehr groß dimensioniert und damit schwer oder - wie aus der WO 2005/028862 Al bekannt - nur sehr arbeitsaufwändig herzustellen und zu montieren ist.However, a double shaft bearing executed in a single bearing housing is regularly thwarted by the fact that the bearing housing is either dimensioned very large and thus difficult or - as known from WO 2005/028862 Al - very labor-consuming to manufacture and assemble.
Aufgabe der vorliegenden Erfindung ist es daher, ein Lagergehäuse für die Lagerung der Rotorwelle einer Windenergieanlage zu schaffen, das sehr kompakt und einfach gebaut werden kann, wobei eine gute Lastübertragung und ein einfacher, nicht arbeitsaufwändiger Einbau in die Windenergieanlage ermöglicht sein soll.Object of the present invention is therefore to provide a bearing housing for the storage of the rotor shaft of a wind turbine, which can be very compact and simple, with a good load transfer and a simple, not labor-intensive installation in the wind turbine should be possible.
Die Aufgabe wird durch das Lagergehäuse mit den Merkmalen von Anspruch 1 gelöst. Die Unteransprüche geben vorteilhafte Ausgestaltungen der Erfindung wieder.The object is achieved by the bearing housing with the features of claim 1. The subclaims reflect advantageous embodiments of the invention.
Grundgedanke der Erfindung ist es, die Befestigungsmittel zur Befestigung des Lagergehäuses an der Windenergieanlage im Bereich der horizontalen Mittellinie des zylindrischen Abschnitts des Lagergehäuses zum zylindrischen Abschnitt bzw. zur Rotorachse achsparallel anzuordnen. Dadurch werden die bevorzugt als Füße ausgebildeten Befestigungsmittel in etwa der horizontalen Höhe der Drehachse der Rotorwelle angeordnet, woraus eine sehr gute Krafteinleitung in den Maschinenträger der Windenergieanlage resultiert. Die dominierenden seitlichen Rotorkräfte (Yaw-Moment) können nämlich gradlinig in den Maschinenträger eingeleitet werden, ohne dass das Gehäuse zusätzliche Kippmomente erzeugt. Außerdem ermöglicht die Position der Gehäusefüße im Bereich der Mittellinie des zylindrischen Abschnitts ein „Durchhängen" der unteren Gehäusehälfte, welches eine gleichmäßige Lastverteilung auf die Rotorlager gewährleistet.The basic idea of the invention is to provide the fastening means for fastening the bearing housing to the wind turbine in the region of the horizontal center line of the wind turbine cylindrical portion of the bearing housing to the cylindrical portion or to the rotor axis to arrange axially parallel. As a result, the fastening means, which are preferably designed as feet, are arranged approximately at the horizontal height of the axis of rotation of the rotor shaft, resulting in a very good introduction of force into the machine carrier of the wind energy plant. The dominant lateral rotor forces (yaw moment) can namely be introduced into the machine carrier in a straight line, without the housing generating additional tilting moments. In addition, the position of the housing feet in the region of the center line of the cylindrical portion allows a "sagging" of the lower half of the housing, which ensures a uniform load distribution on the rotor bearings.
Besonders bevorzugt ist vorgesehen, dass das Lagergehäuse aus zwei im Bereich der Mittelebene des zylindrischen Abschnitts lösbar miteinander verbundenen Schalen besteht. Hierdurch wird insbesondere dann ein vorteilhafter Aufbau des Lagergehäuses erreicht, wenn besonders bevorzugt die untere Schale als Teil des Maschinenträgers einer Windenergieanlage ausgebildet ist. Hierdurch kann eine einfache und schnelle Montage der Lager mit Rotorwelle erreicht werden, ohne dass es aufwändiger Hilfsmittel oder einer besonderen Überprüfung der Verbindung der Befestigungsmittel bedarf.Particularly preferably, it is provided that the bearing housing consists of two in the middle plane of the cylindrical portion releasably interconnected shells. As a result, an advantageous construction of the bearing housing is achieved in particular when the lower shell is particularly preferably designed as part of the machine carrier of a wind energy plant. As a result, a simple and quick installation of the bearing can be achieved with rotor shaft, without the need for complex tools or a special review of the connection of the fastener.
Die Befestigungsmittel sind bevorzugt symmetrisch zur senkrechten Mittellinie des zylindrischen Abschnitts angeordnet und können als Füße oder als Flansch ausgebildet sein.The fastening means are preferably arranged symmetrically to the vertical center line of the cylindrical portion and may be formed as feet or as a flange.
Dabei sollten die Befestigungsmittel in einem Bereich der Mittellinie bzw. im Bereich der Mittelebene von etwa + 25 % des Durchmessers des zylindrischen Abschnitts, besonders bevorzugt ± 10 % des Durchmessers des zylindrischen Abschnitts, vertikal abweichend liegen (d.h. zwischen einer unteren vertikalen Grenze von 10 % des Zylinderdurchmessers unterhalb der Mittellinie und einer oberen vertikalen Grenze von 10 % des Zylinderdurchmessers oberhalb der Mittellinie).In this case, the fastening means should be vertically deviating in a region of the center line or in the region of the center plane of approximately + 25% of the diameter of the cylindrical section, particularly preferably ± 10% of the diameter of the cylindrical section (ie between a lower vertical limit of 10%. the cylinder diameter below the center line and an upper vertical limit of 10% of the cylinder diameter above the center line).
Das Lagergehäuse weist bevorzugt ein oder mehrere Gleitlager auf. Besonders vorteilhaft ist es jedoch, wenn das Lagergehäuse ein Zylinderrollenlager und ein doppelreihiges Kegelrollenlager aufweist, da hierdurch eine radial wie auch axial absolut spielfreie Rotorlagerung ermöglicht wird. Die bisherige Verwendung von Pendelrollenlagern hat nämlich den Nachteil, dass sich die Rotorwelle konstruktionsbedingt stets axial einige Millimeter bewegen kann, wobei axial auftretende Stöße für das Getriebe sehr schädlich sind. Dieser Nachteil kann nun mit dem Lagergehäuse nach der Erfindung beseitigt werden.The bearing housing preferably has one or more plain bearings. However, it is particularly advantageous if the bearing housing is a cylindrical roller bearing and a double row Tapered roller bearing, as this allows a radially as well as axially absolutely backlash-free rotor bearing. The previous use of spherical roller bearings namely has the disadvantage that the rotor shaft design can always move a few millimeters axially, with axially occurring shocks are very harmful to the transmission. This disadvantage can now be eliminated with the bearing housing according to the invention.
Schließlich wird auch eine Windenergieanlage mit dem erfindungsgemäßen Lagergehäuse beansprucht.Finally, a wind energy plant is claimed with the bearing housing according to the invention.
Die Erfindung wird im Folgenden anhand eines in den Zeichnungen dargestellten, besonders bevorzugt ausgestalteten Ausfuhrungsbeispiels näher erläutert. Es zeigen:The invention will be explained in more detail below with reference to an exemplary embodiment illustrated in the drawings and particularly preferred. Show it:
Fig. 1 eine perspektivische Ansicht des erfindungsgemäßen Lager gehäuses;Fig. 1 is a perspective view of the bearing housing according to the invention;
Fig. 2 eine Frontalansicht des auf einem Maschinenträger aufgebrachten erfindungsgemäßen Lagergehäuses;FIG. 2 shows a front view of the bearing housing according to the invention applied to a machine carrier; FIG.
Fig. 3 eine perspektivische Ansicht eines Maschinenträgers mit Rotorwelle, erfindungsgemäßen Lagergehäuse, Getriebe und Generator; und3 shows a perspective view of a machine carrier with rotor shaft, bearing housing, gearbox and generator according to the invention; and
Fig. 4 einen Querschnitt durch das die Rotorwelle aufnehmende erfmdungsgemäße Lagergehäuse.Fig. 4 shows a cross section through the rotor shaft receiving erfmdungsgemäße bearing housing.
Fig. 1 zeigt das Lagergehäuse nach der Erfindung in einer perspektivischen Ansicht. Das Lagergehäuse 10 weist einen zylindrischen Abschnitt 20 zur Aufnahme der (hier nicht gezeigten) Rotorwelle 80 auf. Die außen am Lagergehäuse 10 angeordneten Befestigungsmittel 30 zur Befestigung des Lagergehäuses 10 an einer Windenergieanlage sind erkennbar im Bereich der horizontalen Mittellinie des zylindrischen Abschnitts 20 achsparallel angeordnet. Die Befestigungsmittel 30 sind hier bevorzugt als Füße ausgebildet. Die hier je zwei auf einer Seite des Lagergehäuses 10 dargestellten Füße können jedoch auch achsparallel miteinander verbunden sein, so dass die Befestigungsmittel einen Flansch bilden. - A -Fig. 1 shows the bearing housing according to the invention in a perspective view. The bearing housing 10 has a cylindrical portion 20 for receiving the rotor shaft 80 (not shown here). The fastening means 30 arranged externally on the bearing housing 10 for fastening the bearing housing 10 to a wind power plant can be seen to be arranged axially parallel in the region of the horizontal center line of the cylindrical section 20. The fastening means 30 are here preferably designed as feet. However, the two feet each shown on one side of the bearing housing 10 may also be connected to each other axially parallel, so that the fastening means form a flange. - A -
Fig. 2 zeigt eine Frontalansicht des erfindungsgemäßen Lagergehäuses 10, das im vorliegenden Beispiel auf einem Maschinenträger 50 angeordnet ist. Deutlich ist zu erkennen, dass die Befestigungsmittel 30 im Bereich der horizontalen Mittellinie des zylindrischen Abschnitts 20 angeordnet sind.FIG. 2 shows a front view of the bearing housing 10 according to the invention, which in the present example is arranged on a machine carrier 50. It can be clearly seen that the fastening means 30 are arranged in the region of the horizontal center line of the cylindrical portion 20.
Besonders bevorzugt ist eine Ausgestaltung, nach der das Lagergehäuse 10 aus zwei im Bereich der Mittelebene des zylindrischen Abschnitts lösbar miteinander verbundenen Schalen besteht. Besonders bevorzugt ist eine Ausgestaltung, nach der die untere Schale als Teil des Maschinenträgers ausgebildet ist.Particularly preferred is an embodiment according to which the bearing housing 10 consists of two in the region of the median plane of the cylindrical portion releasably interconnected shells. Particularly preferred is an embodiment according to which the lower shell is formed as part of the machine carrier.
Fig. 3 zeigt eine perspektivische Ansicht eines Maschinenträgers 50, auf dem das dem Getriebegehäuse 90 vorgesetzte erfindungsgemäße Lagergehäuse 10 die Rotorwelle 80 aufnimmt.FIG. 3 shows a perspective view of a machine carrier 50, on which the bearing housing 10 according to the invention, which is provided in front of the transmission housing 90, receives the rotor shaft 80.
Fig. 4 zeigt einen Querschnitt durch das erfmdungsgemäße Lagergehäuse 10, in dem ein mit einem Zylinderrollenlager 60 gepaartes doppelreihiges Kegelrollenlager 70 aufgenommen ist. Das Kegelrollenlager wie auch das Zylinderrollenlager erlauben keinen Ausgleich von Fluchtungs- und Winkelfehlern, so dass das Einhalten der geforderten Toleranzen den Einbau in ein gemeinsames Gehäuse notwendig machen. Die Krafteinleitung in den Maschinenträger wird durch die in den anderen Zeichnungen gut dargestellte Anordnung der Befestigungsmittel im Bereich der horizontalen Linie des zylindrischen Abschnitts gewährleistet.FIG. 4 shows a cross section through the bearing housing 10 according to the invention, in which a double-row tapered roller bearing 70 paired with a cylindrical roller bearing 60 is accommodated. The tapered roller bearing as well as the cylindrical roller bearing do not allow compensation of misalignment and angular errors, so that the maintenance of the required tolerances make installation in a common housing necessary. The introduction of force into the machine carrier is ensured by the well-illustrated in the other drawings arrangement of the fastening means in the region of the horizontal line of the cylindrical portion.
Die sich aus der Erfindung ergebenden Vorteile liegen in der deutlich besseren Kraftflussgestaltung am Maschinenträger im Verhältnis zu Lagergehäusen, die beispielsweise als Stehlagereinheit ausgebildet sind. Weiterhin ist die Fertigung und die Montage des erfindungsgemäßen Lagergehäuses im Vergleich zu den aus dem Stand der Technik bekannten Lagergehäusen weniger aufwändig. Insbesondere ist eine Kopplung des Lagergehäuses mit dem Getriebe nicht notwendig. The resulting from the invention advantages are the significantly better power flow design on the machine frame in relation to bearing housings, which are designed for example as a pillow block unit. Furthermore, the production and assembly of the bearing housing according to the invention compared to the known from the prior art bearing housings less expensive. In particular, a coupling of the bearing housing with the transmission is not necessary.

Claims

ANSPRÜCHE
1. Lagergehäuse (10) für die Lagerung der Rotorwelle (50) einer Windenergieanlage, mit einem zylindrischen Abschnitt (20) zur Aufnahme der Rotorwelle (40) und Befestigungsmitteln (30) zur Befestigung des Lagergehäuses (10) an der Windenergieanlage,1. bearing housing (10) for supporting the rotor shaft (50) of a wind energy plant, with a cylindrical portion (20) for receiving the rotor shaft (40) and fastening means (30) for securing the bearing housing (10) on the wind turbine,
dadurch gekennzeichnet, dasscharacterized in that
die Befestigungsmittel (30) im Bereich der horizontalen Mittellinie des zylindrischen Abschnitts (20) achsparallel angeordnet sind.the fastening means (30) are arranged axially parallel in the region of the horizontal center line of the cylindrical portion (20).
2. Lagergehäuse (1Ö) nach Anspruch 1, dadurch gekennzeichnet, dass das Lagergehäuse (10) aus zwei im Bereich der Mittelebene des zylindrischen Abschnitts (20) lösbar miteinander verbundenen Schalen besteht.2. bearing housing (1Ö) according to claim 1, characterized in that the bearing housing (10) consists of two in the region of the median plane of the cylindrical portion (20) releasably interconnected shells.
3. Lagergehäuse (10) nach Anspruch 2, dadurch gekennzeichnet, dass die untere Schale als Teil des Maschinenträgers (50) einer Windenergieanlage ausgebildet ist.3. bearing housing (10) according to claim 2, characterized in that the lower shell is formed as part of the machine carrier (50) of a wind turbine.
4. Lagergehäuse (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Befestigungsmittel (30) zur senkrechten Mittellinie des zylindrischen Abschnitts (20) symmetrisch angeordnet sind.4. bearing housing (10) according to any one of the preceding claims, characterized in that the fastening means (30) are arranged symmetrically to the vertical center line of the cylindrical portion (20).
5. Lagergehäuse (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Lagerung mit einem Zylinderrollenlager (60) und einem doppelreihigen Kegelrollenlager (70) ausgeführt ist. 5. bearing housing (10) according to any one of the preceding claims, characterized in that the bearing with a cylindrical roller bearing (60) and a double-row tapered roller bearing (70) is executed.
6. Lagergehäuse (10) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Lagerung als Gleitlager ausgeführt ist.6. bearing housing (10) according to one of claims 1 to 5, characterized in that the bearing is designed as a sliding bearing.
7, Lagergehäuse (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Befestigungsmittel (30) als Füße ausgebildet sind.7, bearing housing (10) according to any one of the preceding claims, characterized in that the fastening means (30) are formed as feet.
8. Lagergehäuse (10) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Befestigungsmittel (30) als Flansch ausgebildet sind.8. bearing housing (10) according to one of claims 1 to 6, characterized in that the fastening means (30) are designed as a flange.
9. Lagergehäuse (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Bereich der Mittellinie bzw. der Bereich der Mittelebene der von der Mittelinie um ± 10 % des Durchmessers des zylindrischen Abschnitts (20) vertikal abweichende Bereich ist.9. bearing housing (10) according to any one of the preceding claims, characterized in that the region of the center line or the region of the median plane of the center line by ± 10% of the diameter of the cylindrical portion (20) is vertically deviating area.
10. Windenergieanlage mit einem Lagergehäuse (10) nach einem der Ansprüche 1 bis 9. 10. Wind energy plant with a bearing housing (10) according to one of claims 1 to 9.
PCT/DE2009/001376 2008-10-21 2009-10-05 Bearing housing for mounting the rotor shaft of a wind energy plant WO2010045913A2 (en)

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DE102008052412A DE102008052412A1 (en) 2008-10-21 2008-10-21 Bearing housing for the storage of the rotor shaft of a wind turbine

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DE102017008797A1 (en) * 2017-09-15 2019-03-21 Jörn Greve Device for additional securing, in particular renovation, of a rotor main bearing housing in wind turbines and bearing housings by supporting the bearing housing
DE102017008797B4 (en) 2017-09-15 2022-07-07 Jörn Greve Device for additional securing, in particular rehabilitation, of a rotor main bearing housing in wind turbines and bearing housings by supporting the bearing housing
CN110778602A (en) * 2018-12-22 2020-02-11 杨霞 Detachable bidirectional bearing device
EP3739205A1 (en) * 2019-05-16 2020-11-18 Siemens Gamesa Renewable Energy A/S Bearing arrangement for a wind turbine and wind turbine
US11428213B2 (en) 2019-05-16 2022-08-30 Siemens Gamesa Renewable Energy A/S Bearing arrangement for a wind turbine and wind turbine

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WO2010045913A3 (en) 2010-12-23

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