DE102009054467A1 - Bearing arrangement for a rotor and its use - Google Patents

Bearing arrangement for a rotor and its use Download PDF

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Publication number
DE102009054467A1
DE102009054467A1 DE102009054467A DE102009054467A DE102009054467A1 DE 102009054467 A1 DE102009054467 A1 DE 102009054467A1 DE 102009054467 A DE102009054467 A DE 102009054467A DE 102009054467 A DE102009054467 A DE 102009054467A DE 102009054467 A1 DE102009054467 A1 DE 102009054467A1
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Germany
Prior art keywords
bearing
rotor
drive shaft
module housing
hybrid
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DE102009054467A
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German (de)
Inventor
Andreas Giessner
Andreas Acker
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ZF Friedrichshafen AG
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ZF Friedrichshafen AG
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Priority to DE102009054467A priority Critical patent/DE102009054467A1/en
Priority to PCT/EP2010/066677 priority patent/WO2011069750A1/en
Publication of DE102009054467A1 publication Critical patent/DE102009054467A1/en
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    • 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
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B60K6/405—Housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/085—Structural association with bearings radially supporting the rotary shaft at only one end of the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • 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
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Abstract

Es wird eine Lageranordnung und deren Verwendung für einen Rotor (2) einer elektrischen Maschine in einem Hybridmodulgehäuse (1) eines Fahrzeuges mit einem den Rotor (2) haltenden Rotorträger (4) vorgeschlagen, der mit einer Hybrid-Antriebswelle (7) verbunden ist, die über zumindest ein Lager an dem Hybridmodulgehäuse (1) gelagert ist, wobei als Lager eine mehrreihige Lagereinheit auf der Antriebswelle (7) angeordnet ist.A bearing arrangement and its use for a rotor (2) of an electric machine in a hybrid module housing (1) of a vehicle with a rotor carrier (4) holding the rotor (2) is proposed, which is connected to a hybrid drive shaft (7). which is mounted on at least one bearing on the hybrid module housing (1), wherein a multi-row bearing unit is arranged on the drive shaft (7) as a bearing.

Figure 00000001
Figure 00000001

Description

Die vorliegende Erfindung betrifft eine Lageranordnung und deren Verwendung für einen Rotor einer elektrischen Maschine in einem Hybridmodulgehäuse eines Fahrzeuges gemäß der im Oberbegriff des Patentanspruches 1 näher definierten Art.The present invention relates to a bearing assembly and its use for a rotor of an electric machine in a hybrid module housing of a vehicle according to the closer defined in the preamble of claim 1. Art.

Aus der Fahrzeugtechnik ist es bekannt, dass eine Lageranordnung für einen Rotor einer elektrischen Maschine zwei Lagerstellen umfasst, wobei ein gedichtetes Kugellager als Festlager in dem Hybridmodulgehäuse zwischen der Trennkupplung bzw. dem Verbrennungsmotor und der elektrischen Maschine angeordnet ist. Der zweite Lagersitz als Loslager ist über einen Passungssitz auf der Getriebeeingangswelle realisiert, wobei die Getriebeeingangswelle wiederum über das Getriebeeingangswellenlager als Festlager und ein Pilotlager als Loslager gelagert ist. Dies hat jedoch unbedingt zur Folge, dass eine spezielle Getriebeeingangswelle erforderlich ist. Außerdem ist eine so genannte Einkupplungsvariante bei dem Hybridsystem erforderlich, da durch die starre Verbindung, welche durch den Passungssitz entsteht, keine Relativbewegung zwischen der Motorwelle der elektrischen Maschine und der Getriebeeingangswelle ausgeglichen werden kann.It is known from vehicle technology that a bearing arrangement for a rotor of an electrical machine comprises two bearing points, wherein a sealed ball bearing is arranged as a fixed bearing in the hybrid module housing between the separating clutch or the internal combustion engine and the electric machine. The second bearing seat as a floating bearing is realized via a fit on the transmission input shaft, wherein the transmission input shaft is in turn mounted on the transmission input shaft bearing as a fixed bearing and a pilot bearing as a floating bearing. However, this necessarily means that a special transmission input shaft is required. In addition, a so-called Einkupplungsvariante in the hybrid system is required because no relative movement between the motor shaft of the electric machine and the transmission input shaft can be compensated by the rigid connection, which is created by the interference fit.

Eine andere Möglichkeit für den zweiten Lagersitz kann über ein Pilotlager im Massenschwungrad antriebsseitige realisiert werden. Hierbei ergibt sich der Nachteil, dass ein spezielles Pilotlager und ein spezielles Schwungrad erforderlich sind.Another possibility for the second bearing seat can be realized on the drive side via a pilot bearing in the flywheel. This has the disadvantage that a special pilot bearing and a special flywheel are required.

Des Weiteren ergibt sich bei den bekannten Lageranordnungen der Nachteil, dass die vollständige Lagerung der elektrischen Maschine erst nach der Montage des Hybridmoduls an dem Getriebegehäuse und an dem Verbrennungsmotor realisiert wird. Dadurch ist im unmontierten Zustand ein Verkippen des Rotors zum Stator möglich, welches zur Beschädigung dieser Bauteile und zu einer erschwerten Montage führt.Furthermore, in the case of the known bearing arrangements, the disadvantage arises that the complete mounting of the electric machine is realized only after the assembly of the hybrid module to the transmission housing and to the internal combustion engine. As a result, in the unmounted state tilting of the rotor to the stator is possible, which leads to damage of these components and to a difficult assembly.

Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, eine Lageranordnung der eingangs beschriebenen Gattung und deren Verwendung vorzuschlagen, bei der ein Verkippen des Rotors zum Stator sicher vermieden wird.The present invention is based on the object to propose a bearing assembly of the type described above and their use, in which tilting of the rotor to the stator is reliably avoided.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruches 1 bzw. 7 gelöst, wobei sich weitere vorteilhafte Ausgestaltungen aus den jeweiligen Unteransprüchen und der Zeichnung ergeben.This object is achieved by the features of claim 1 and 7, wherein further advantageous embodiments of the respective dependent claims and the drawings.

Demnach wird eine Lageranordnung für einen Rotor einer elektrischen Maschine in einem Hybridmodulgehäuse eines Fahrzeuges mit einem den Rotor tragenden bzw. haltenden Rotorträger vorgeschlagen, der mit einer Hybrid-Antriebswelle verbunden ist, die über zumindest ein Lager an dem Hybridmodulgehäuse gelagert ist, wobei als Lager eine zentrale mehrreihige Lagereinheit auf bzw. an der Antriebswelle angeordnet ist.Accordingly, a bearing assembly for a rotor of an electric machine is proposed in a hybrid module housing of a vehicle having a rotor supporting the rotor carrier, which is connected to a hybrid drive shaft, which is mounted on at least one bearing on the hybrid module housing, wherein a bearing central multi-row bearing unit is arranged on or on the drive shaft.

Mit der vorgesehenen mehrreihigen Lagereinheit wird eine Lagerung des mit der Antriebswelle verbundenen Rotors einerseits durch nur eine Lagerstelle und andererseits schon vor der Montage an einem Verbrennungsmotor oder einem Getriebe in dem Hybridmodul realisiert, so dass ein Verkippen des Rotors ausgeschlossen ist und somit eine Kollision zwischen dem Rotor dem Stator der elektrischen Maschine verhindert wird.With the proposed multi-row bearing unit storage of the rotor connected to the drive shaft is realized on the one hand by only one bearing and on the other hand before mounting on an internal combustion engine or a transmission in the hybrid module, so that tilting of the rotor is excluded and thus a collision between the Rotor is prevented from the stator of the electric machine.

Vorzugsweise wird die mehrreihige Lagereinheit in axialer Richtung im Wesentlichen mittig zum Rotor an der Antriebswelle ausgerichtet. Auf diese Weise wird eine stabile Lagerung in dem Hybridmodul sichergestellt.Preferably, the multi-row bearing unit is aligned in the axial direction substantially centrally of the rotor on the drive shaft. In this way, a stable storage is ensured in the hybrid module.

Im Rahmen einer vorteilhaften Weiterbildung der Erfindung kann vorgesehen sein, dass als Lagereinheit ein zweireihiges, gedichtetes Schrägkugellager oder dergleichen vorgesehen ist. Es sind auch andere Arten von Wälzlagern möglich. Jedoch wird durch das vorgeschlagene Schrägkugellager eine vorteilhaft einfache und sichere Lagerung realisiert.In the context of an advantageous development of the invention it can be provided that a double-row, sealed angular contact ball bearing or the like is provided as the bearing unit. There are also other types of bearings possible. However, an advantageous simple and secure storage is realized by the proposed angular contact ball bearings.

Bei der erfindungsgemäß vorgeschlagenen Lageranordnung kann vorzugsweise das Hybridmodulgehäuse den Lagersitz für den Außenring des Schrägkugellagers bilden. Dabei wird zur axialen Sicherung zumindest ein Segment oder dergleichen an einem Absatz des Hybridmodulgehäuses vorgesehen. Als Lagersitz für den Innenring des Schrägkugellagers beziehungsweise der Lagereinheit wird die Hybrid-Antriebswelle verwendet, wobei zur axialen Sicherung getriebeseitig ein Absatz an der Antriebswelle und motorseitige eine Stützscheibe mit einem Sicherungsring oder dergleichen vorgesehen sind. Es sind auch andere konstruktive Mittel einsetzbar, die eine axiale Verspannung der Lagersitze ermöglichen, um ein Festlager zu realisieren.In the bearing arrangement proposed according to the invention, the hybrid module housing may preferably form the bearing seat for the outer ring of the angular contact ball bearing. In this case, at least one segment or the like is provided on a shoulder of the hybrid module housing for axial securing. As a bearing seat for the inner ring of the angular contact ball bearing or the bearing unit, the hybrid drive shaft is used, wherein for axial securing gear side a paragraph on the drive shaft and motor side a support disc with a locking ring or the like are provided. There are also other constructive means can be used, which allow axial clamping of the bearing seats to realize a fixed bearing.

Um eine kraftschlüssige Verbindung zwischen dem Rotor einerseits und der Hybrid-Antriebswelle andererseits zu realisieren, kann der Rotorträger einerseits mit dem Rotor und andererseits mit der getriebeseitigen Nabe und der Antriebswelle zum Beispiel verschraubt werden. Es sind auch andere Verbindungsarten denkbar.In order to realize a frictional connection between the rotor on the one hand and the hybrid drive shaft on the other hand, the rotor carrier can be bolted on the one hand to the rotor and on the other hand to the transmission-side hub and the drive shaft, for example. There are also other types of connection conceivable.

Die erfindungsgemäße Lageranordnung kann bei beliebig ausgestalteten Hybrid-Fahrzeugen verwendet werden. Vorzugsweise kann die vorgeschlagene Lageranordnung jedoch bei einem Parallel-Hybrid-Antriebssystem verwendet werden, um den Rotor in dem Hybridmodul sicher zu lagern. Bei der Verwendung der erfindungsgemäßen Lageranordnung kann somit das Hybridmodul als fertige Baueinheit unabhängig von weiteren Komponenten des Antriebsstranges hergestellt wenden und je nach Bedarf später an den Verbrennungsmotor und das Getriebe montiert werden.The bearing arrangement according to the invention can be used in hybrid vehicles of any desired design. Preferably, however, the proposed bearing arrangement may be used in a parallel hybrid drive system to securely support the rotor in the hybrid module. When using the bearing arrangement according to the invention, the hybrid module can thus be manufactured as a finished unit independently of other components of the drive train and later be mounted as needed on the engine and the transmission.

Nachfolgend wird die vorliegende Erfindung anhand der Zeichnung weiter erläutert. Die einzige Figur der Erfindung zeigt eine geschnittene Teilansicht durch ein Hybridmodulgehäuse 1 mit einer möglichen Ausführungsvariante einer erfindungsgemäßen Lageanordnung für einen Rotor 2 einer elektrischen Maschine bei einem nicht weiter dargestellten Parallel-Hybrid-Antriebssystem eines Fahrzeuges.Hereinafter, the present invention will be further explained with reference to the drawings. The sole figure of the invention shows a partial sectional view through a hybrid module housing 1 with a possible embodiment of a layer arrangement according to the invention for a rotor 2 an electrical machine in a parallel hybrid drive system of a vehicle, not shown.

Das dargestellte Hybridmodulgehäuses 1 stellt einen Teil des Hybrid-Fahrzeuges dar, welches z. B. in einem Parallel-Hybrid-Antriebsstrang eines Kraftfahrzeuges verbaut wird. Bei der hier dargestellten Ausführungsvariante ist der Stator 3 der elektrischen Maschine fest mit dem Hybridmodulgehäuse 1 verschraubt. Der Rotor 2 ist mit einem Rotorträger 4 verbunden, der wiederum über eine Verschraubung 5 kraftschlüssig mit einer getriebeseitigen Nabe 6 und einer Hybrid-Antriebswelle 7 verbunden ist.The illustrated hybrid module housing 1 represents a part of the hybrid vehicle, which z. B. is installed in a parallel hybrid powertrain of a motor vehicle. In the embodiment shown here, the stator 3 the electric machine firmly with the hybrid module housing 1 screwed. The rotor 2 is with a rotor carrier 4 connected, in turn, via a screw connection 5 non-positively with a gearbox-side hub 6 and a hybrid drive shaft 7 connected is.

Erfindungsgemäß ist vorgesehen, dass der mit der Antriebswelle 7 verbundene Rotor 2 über ein zweireihiges, gedichtetes Schrägkugellager 8 in dem Hybridmodulgehäuses 1 gelagert ist. Auf diese Weise bildet das Hybridmodulgehäuses 1 eine fertige Baueinheit, bei der ein Verkippen des Rotors 2 und somit eine Kollision zwischen dem Rotor 2 und dem Stator 3 verhindert wird.According to the invention it is provided that with the drive shaft 7 connected rotor 2 via a double-row, sealed angular contact ball bearing 8th in the hybrid module housing 1 is stored. In this way, the hybrid module housing forms 1 a finished unit, in which a tilting of the rotor 2 and thus a collision between the rotor 2 and the stator 3 is prevented.

Das Hybridmodulgehäuse 1 bildet den Lagersitz für den Außenring 9 des zweireihigen Schrägkugellagers 8, wobei die Antriebswelle 7 den Lagersitz für den Innenring 10 des Schrägkugellagers 8 bildet. Zur axialen Sicherung des Außenringes 9 ist verbrennungsmotorseitig ein Absatz 12 im Hybridmodulgehäuse 1 und getriebeseitig ein an dem Hybridmodulgehäuse 1 befestigtes Segment 11 oder dergleichen vorgesehen. Der Innenring 10 wird axial einerseits durch einen getriebeseitigen Absatz 13 an der Antriebswelle 7 und andererseits durch eine Stützscheibe 14 mit einem Sicherungsring 15 gesichert.The hybrid module housing 1 forms the bearing seat for the outer ring 9 of the double-row angular contact ball bearing 8th , where the drive shaft 7 the bearing seat for the inner ring 10 of angular contact ball bearing 8th forms. For axial securing of the outer ring 9 is a combustion engine side paragraph 12 in the hybrid module housing 1 and on the transmission side on the hybrid module housing 1 attached segment 11 or the like provided. The inner ring 10 is axially on the one hand by a gear-side paragraph 13 on the drive shaft 7 and on the other hand by a support disk 14 with a locking ring 15 secured.

Die Hauptfunktion der Antriebswelle 7 besteht in der Weiterleitung des Momentes zum Getriebe. Das verbrennungsmotorische Moment kann über ein Keilwellenprofil 16 an der Antriebswelle 7 und das Moment der elektrischen Maschine kann über den Rotor 2 beziehungsweise den Rotorträger 4 über die Nabe 6 auf die nicht weiter dargestellte Getriebeeingangswelle übertragen werden.The main function of the drive shaft 7 consists in passing the moment to the transmission. The internal combustion engine torque can be achieved via a splined shaft profile 16 on the drive shaft 7 and the moment of the electric machine can be over the rotor 2 or the rotor carrier 4 over the hub 6 be transmitted to the transmission input shaft, not shown.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
HybridmodulgehäuseHybrid module housing
22
Rotorrotor
33
Statorstator
44
Rotorträgerrotorarm
55
Verschraubungscrew
66
Nabehub
77
Hybrid-AntriebswelleHybrid drive shaft
88th
zweireihige Schrägkugellagerdouble-row angular contact ball bearings
99
Außenringouter ring
1010
Innenringinner ring
1111
Segmentsegment
1212
Absatz im HybridmodulgehäuseParagraph in the hybrid module housing
1313
getriebeseitiger Absatz an der AntriebswelleGearbox-side shoulder on the drive shaft
1414
Stützscheibesupport disc
1515
Sicherungsringcirclip
1616
KeilwellenprofilSpline

Claims (7)

Lageranordnung für einen Rotor (2) einer elektrischen Maschine in einem Hybridmodulgehäuse (1) eines Fahrzeuges, mit einem den Rotor (2) haltenden Rotorträger (4), der mit einer Hybrid-Antriebswelle (7) verbunden ist, die über zumindest ein Lager an dem Hybridmodulgehäuse (1) gelagert ist, dadurch gekennzeichnet, dass als Lager eine mehrreihige Lagereinheit auf der Antriebswelle (7) angeordnet ist.Bearing arrangement for a rotor ( 2 ) of an electrical machine in a hybrid module housing ( 1 ) of a vehicle, with a rotor ( 2 ) holding rotor carrier ( 4 ) equipped with a hybrid drive shaft ( 7 ) connected via at least one bearing to the hybrid module housing ( 1 ) is mounted, characterized in that a multi-row bearing unit on the drive shaft ( 7 ) is arranged. Lageranordnung nach Anspruch 1, dadurch gekennzeichnet, dass die Lagereinheit in axialer Richtung im Wesentlichen mittig zum Rotor (2) an der Antriebswelle (7) ausgerichtet ist.Bearing assembly according to claim 1, characterized in that the bearing unit in the axial direction substantially centrally of the rotor ( 2 ) on the drive shaft ( 7 ) is aligned. Lageranordnung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass als Lagereinheit ein zweireihiges, gedichtetes Schrägkugellager (8) vorgesehen ist.Bearing arrangement according to one of the preceding claims, characterized in that the bearing unit is a double-row, sealed angular contact ball bearing ( 8th ) is provided. Lageranordnung nach Anspruch 3, dadurch gekennzeichnet, dass das Hybridmodulgehäuse (1) den Lagersitz für den Außenring (9) des Schrägkugellagers (8) bildet, wobei zur axialen Sicherung zumindest ein Segment (11) an einem Absatz (12) im Hybridmodulgehäuse (1) vorgesehen ist.Bearing arrangement according to claim 3, characterized in that the hybrid module housing ( 1 ) the bearing seat for the outer ring ( 9 ) of the angular contact ball bearing ( 8th ), wherein for the axial securing at least one segment ( 11 ) on a paragraph ( 12 ) in the hybrid module housing ( 1 ) is provided. Lageranordnung nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, dass die Hybrid-Antriebswelle (7) den Lagersitz für den Innenring (10) des Schrägkugellagers (8) bildet, wobei zur axialen Sicherung getriebeseitig ein Absatz (13) an der Antriebswelle (7) vorgesehen ist und verbrennungsmotorseitig eine Stützscheibe (14) mit einem Sicherungsring (15) vorgesehen ist.Bearing arrangement according to one of claims 3 or 4, characterized in that the hybrid drive shaft ( 7 ) the bearing seat for the inner ring ( 10 ) of the angular contact ball bearing ( 8th ), wherein for axial securing gear side a paragraph ( 13 ) on the drive shaft ( 7 ) is provided and combustion engine side a support disk ( 14 ) with a retaining ring ( 15 ) is provided. Lageranordnung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Rotorträger (4) mit einer getriebeseitigen Nabe (6) und der Antriebswelle (7) kraftschlüssig verbunden ist.Bearing arrangement according to one of the preceding claims, characterized in that the rotor carrier ( 4 ) with a transmission-side hub ( 6 ) and the drive shaft ( 7 ) is positively connected. Verwendung der Lageranordnung nach einem der vorangehenden Ansprüche bei einem Parallel-Hybrid-Antriebssystem eines Fahrzeuges.Use of the bearing arrangement according to one of the preceding claims in a parallel hybrid drive system of a vehicle.
DE102009054467A 2009-12-10 2009-12-10 Bearing arrangement for a rotor and its use Withdrawn DE102009054467A1 (en)

Priority Applications (2)

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DE102009054467A DE102009054467A1 (en) 2009-12-10 2009-12-10 Bearing arrangement for a rotor and its use
PCT/EP2010/066677 WO2011069750A1 (en) 2009-12-10 2010-11-03 Bearing assembly for a rotor and use thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009054467A DE102009054467A1 (en) 2009-12-10 2009-12-10 Bearing arrangement for a rotor and its use

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DE102004040224B4 (en) * 2004-08-19 2010-04-08 Ab Skf roller bearing
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FR2809880A1 (en) * 2000-06-05 2001-12-07 Peugeot Citroen Automobiles Sa Electric motor for hybrid propulsion vehicle, in which motor is located in clutch housing between thermal engine and gearbox
US20070213163A1 (en) * 2004-06-03 2007-09-13 Emmanuel Combes Double-clutch transmission element for a hybrid pull chain of a motor vehicle, method of mounting same, and motor vehicle equipped with one such element

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