[go: up one dir, main page]

WO2006106002A1 - Connection device for a drive and method for producing said connection device - Google Patents

Connection device for a drive and method for producing said connection device Download PDF

Info

Publication number
WO2006106002A1
WO2006106002A1 PCT/EP2006/050362 EP2006050362W WO2006106002A1 WO 2006106002 A1 WO2006106002 A1 WO 2006106002A1 EP 2006050362 W EP2006050362 W EP 2006050362W WO 2006106002 A1 WO2006106002 A1 WO 2006106002A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
tolerance compensation
compensation means
connection point
connecting device
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.)
Ceased
Application number
PCT/EP2006/050362
Other languages
German (de)
French (fr)
Inventor
Johannes Vlemmings
Peter Ahner
Barlas Turgay
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2006106002A1 publication Critical patent/WO2006106002A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—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 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 motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/129—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding specially adapted for particular articles or workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/24—Preliminary treatment
    • 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
    • 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 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 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 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
    • 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
    • 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 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 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
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/064—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable
    • F16D1/068—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving gluing, welding or the like
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/76—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members shaped as an elastic ring centered on the axis, surrounding a portion of one coupling part and surrounded by a sleeve of the other coupling part
    • F16D3/77—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members shaped as an elastic ring centered on the axis, surrounding a portion of one coupling part and surrounded by a sleeve of the other coupling part the ring being metallic
    • 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

Definitions

  • the invention is based on a connecting device for a drive, in particular an electric machine with an internal combustion engine or a transmission, and a method for producing a connecting device according to the preambles of the independent claims.
  • a hybrid drive with an electric machine and with an internal combustion engine means are provided for compensating an axial and / or radial offset of components or angular deviations.
  • These tolerance compensation means are arranged, for example, between an internally mounted rotor of the electric machine and a crankshaft of the internal combustion engine or between the rotor and the transmission input.
  • flexplates are used as tolerance compensation means, whereby flexplates and rotor shafts are connected to one another by a screw connection in the prior art the screw connection between the shaft and flexplate, because of the pitch circle diameter required for a torque transmission, requires an axial space extension by at least one screw-in depth of the screw.
  • the axial installation space extension is often not possible for design reasons, so that an enlargement of the inner diameter of the bearing is required.
  • this requires the use of special thin-ring bearings. Due to existing load profiles even the use of expensive special bearings may be necessary.
  • the assembly of such connection devices is complex and expensive.
  • the use of special warehouses can also lead to a delivery bottleneck in the production of eg hybrid drives.
  • a connecting device for a drive, in particular an electric machine with an internal combustion engine or a transmission, comprises a rotatable shaft and a co-rotating tolerance compensation means, wherein a connection point between the shaft and the tolerance compensation means is designed as a friction-welded connection.
  • An inventive method for producing a connecting device is produced by friction welding. It is advantageous that can be dispensed with a screw connection between the shaft and tolerance compensation means, so that an axial space extension is unnecessary because of the necessary for a torque transmission pitch circle diameter. Therefore, bearings with a small diameter can be used, and the available space is sufficient. In addition, the use of screws is unnecessary, so that the Made effort easier during assembly.
  • the assembly can be performed faster, and there are no special storage, such as thin ring bearings, more required.
  • special storage such as thin ring bearings
  • a dependency on the availability of special warehouses is advantageously eliminated, as a result of which possible waiting times due to delayed deliveries can be avoided.
  • mass-produced small bearings can be used, which minimizes production costs.
  • Friction welding is based on thermal diffusion. A penetration depth of aluminum in grain boundaries of steel is about 0.01 mm and allows a reliable, reliable connection between the components.
  • the shaft and / or the tolerance compensation means can be made of hardened materials, because a temperature increase during friction welding is local, so that already pre-hardened components can be friction-welded, without the hardening being fundamentally impaired.
  • a loss of hardener can be counteracted by targeted cooling rate. Depending on the hardness of the material, the cooling rate during friction welding can be adjusted.
  • a surface of the shaft and / or the tolerance compensation means is roughened defined at least in the region of the joint before the friction welding.
  • the tolerance compensation means is made of spring steel, wherein it has proved to be particularly favorable, a surface of the spring steel at least partially, for. in the area of friction welds, roughening, e.g. by sandblasting.
  • the shaft and the tolerance compensation means are compressed in the region of the connection point.
  • the accumulation can be distributed equally on the shaft and the tolerance compensation means by guiding the shaft and the tolerance compensation means against each other.
  • the compression is distributed differently between the two workpiece parts, so that during the compression the tolerance compensation means is guided against the shaft or vice versa.
  • the connection point has a total length of 12 mm before compression, ie 6 mm per component, after compression, for example, only a length of 6 to 8 mm can remain.
  • a favorable shortening can be determined by experiments. This can be reproducible within a tolerance range of ⁇ 0.3 mm.
  • a total run-out error may in particular be at most 0.3 mm.
  • connection point concentrically surrounds an axis of rotation of the shaft.
  • the connection point can be arranged axially outside, ie in front of the shaft or else so that it concentrically surrounds the shaft.
  • the tolerance compensation means is preferably formed in the manner of a disc which is arranged concentrically to the shaft. In this case, the shaft can reach through the tolerance compensation means or the tolerance compensation means can be placed on an end face of the shaft. If the tolerance compensation means is disk-shaped, the shaft sits with its front side directly on the flat disk.
  • the tolerance compensation means and the shaft may be spaced at the junction by a collar, the collar may be formed on both the shaft and the tolerance compensation means or both.
  • the tolerance compensation means can form a collar at the connection point and be arranged behind an end face of the branch.
  • the shaft also preferably has an edge or collar pointing towards the tolerance compensation means.
  • the tolerance compensation means may be arranged with a collar axially outside on the front side of the shaft. It can also be provided that the tolerance compensation means in the region of the connection point is connected flat axially outside on the front side of the shaft with the shaft, wherein no collar is formed on the tolerance compensation means. Depending on the available space and design of the connection device can be alternated between these variants.
  • Fig. 1 shows a rotor bearing according to the prior art
  • FIG. 2 shows an embodiment of a connecting device according to the invention
  • Fig. 3 shows an alternative embodiment to Fig. 2;
  • FIG. 5 shows an alternative variant to FIG. 4.
  • FIG. 1 shows schematically a known embodiment of a connecting device according to the invention for a hybrid drive with an electric machine and an internal combustion engine, wherein the electric machine comprises a rotor 16 and a stator 17.
  • the rotor 16 comprises a rotatable shaft 10 with a rotation axis 24, which passes through a housing 18 of the electrical machine at its two end faces, with a bearing 19. A kurwellenwellen workede bearing of the shaft 10 is not shown.
  • a co-rotating tolerance compensation means 11 is provided, wherein between the shaft 10 and the tolerance compensation means 11, a connection point 12 is formed.
  • the tolerance compensation means 11 is disc-shaped and is also called flexplate.
  • FIG. 2 shows an embodiment of a connecting device according to the invention with a bearing 10 which can be compared to FIG. 1.
  • the connection point 12 between the shaft 10 and the disc-shaped tolerance compensation means 11 is not formed as a screw connection, but as a friction welded connection.
  • an inner diameter 22 of the bearing 19 of the shaft 10 and also the necessary outer diameter of the shaft 10 on the bearing is smaller, whereby advantageously a bearing 19 with a smaller diameter or low-cost mass production can be used.
  • friction welding uses a binding mechanism based on thermal diffusion, steel parts of different composition and even different materials can be joined together.
  • the shaft 10 and the tolerance compensation means 11 are made of different materials and joined together by friction welding.
  • friction welding a temperature increase is only locally formed, so that it is possible to weld already hardened parts, without the curing is fundamentally impaired.
  • the shaft 10 and / or the tolerance compensation means 11 can thus be made of precured materials.
  • a surface 15 of the shaft 10 and / or the tolerance compensation means 11 are roughened defined at least in the region of the joint 12 before the friction welding, for example sandblasted, whereby a higher frictional heat and thus a stronger binding mechanism can be achieved.
  • the shaft 10 and the tolerance compensation means 11 are compressed in the region of the connection point 12. Depending on the shape, the compression can be distributed equally or differently to both components.
  • a central opening of the disc-shaped tolerance compensation means 11 surrounding collar 13 is formed on the tolerance compensation means 11 at the junction 12, wherein the tolerance compensation means 11 is disposed axially behind an end face 14 of the shaft 10.
  • a collar 13 directed to the edge is formed, which corresponds in diameter and width with the collar 13 of the tolerance compensation means 11.
  • the joint 12 between the shaft 10 and the tolerance compensation means 11 surrounds the shaft 10 concentrically.
  • connection point 12 between a shaft 10 and a disc-shaped tolerance compensation means 11 in an alternative embodiment, wherein the tolerance compensation means 11 forms a collar 13 surrounding a central opening of the disc-shaped tolerance compensation means 11 at the connection point 12 and axially outside is arranged on the front side 14 of the shaft 10.
  • the connection point 12 concentrically surrounds the axis of rotation 24 of the shaft 10.
  • FIGS. 4 and 5 constructional variants of a connection point 12 between a shaft 10 and a disc-shaped tolerance compensation means 11 are shown, wherein the Toleranzaus GmbHs- medium 11 is formed in each case frangeless and is arranged axially outside on the end face 14 of the shaft 10.
  • the tolerance compensation means 11 sets in these alternative embodiments of the invention flat on the end face 14 of the shaft 10 at.
  • the shaft 10 has a different basic shape in FIG. 4 than in FIG. 5, the shaft 10 being divided in each case in the region of the connection point 12 in FIG. 4 and having an axial recess 23 surrounded by a ring structure 25 with two rings is, while in Fig. 5, the shaft 10 in the region of the junction 12 just with the tolerance compensation means 11 closes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

The invention relates to a connection device for a drive, in particular an electric machine coupled to an internal combustion engine or to a gearbox that is situated in an internal combustion engine. Said device comprises a rotating shaft (10) and a tolerance compensation element (11) that rotates with said shaft, a connection point (12) being configured between the shaft (10) and the tolerance compensation element (11). According to the invention, the connection point (12) between the shaft (10) and the tolerance compensation element (11) is configured as a friction-welded connection. The invention also relates to a method for producing a connection device for a drive.

Description

Verbindungsvorrichtung für einen Antrieb sowie Verfahren zur Herstellung einer VerbindungsvorrichtungConnecting device for a drive and method for producing a connecting device

Stand der TechnikState of the art

Die Erfindung geht aus von einer Verbindungsvorrichtung für einen Antrieb, insbesondere einer elektrischen Maschine mit einer Verbrennungskraftmaschine oder einem Getriebe, sowie einem Verfahren zur Herstellung einer Verbindungsvorrichtung nach den Oberbegriffen der unabhängigen Ansprüche.The invention is based on a connecting device for a drive, in particular an electric machine with an internal combustion engine or a transmission, and a method for producing a connecting device according to the preambles of the independent claims.

Nach dem Stand der Technik sind bei einem Hybridantrieb mit einer elektrischen Maschine und mit einer Verbrennungskraftmaschine Mittel zum Ausgleich eines axialen und/oder radialen Versatzes von Bauteilen bzw. Winkelabweichungen vorgesehen. Diese Toleranzausgleichsmittel werden z.B. zwischen einem eigen gelagerten Rotor der elektrischen Maschine und einer Kurbelwelle der Verbrennungs- kraftmaschine bzw. zwischen Rotor und Getriebeeingang angeordnet. Üblicherweise werden als Toleranzausgleichsmittel elastische, runde oder durch Ausnehmungen am Rand sternförmige Scheiben, so genannte „Flexplates", verwendet. Dabei werden Flexplate und Rotorwelle nach dem Stand der Technik durch eine Schraubenver- bindung miteinander verbunden. Bei einer Lagerung des Rotors setzt die Schraubenverbindung zwischen Welle und Flexplate wegen des für eine Drehmomentübertragung nötigen Teilkreisdurchmessers eine axiale Bauraumverlängerung um mindestens eine Einschraubtiefe der Schraube voraus. Die axiale Bauraumverlängerung ist aus kon- struktionstechnischen Gründen oft nicht möglich, so dass eine Vergrößerung des Lagerinnendurchmessers erforderlich ist. Dies verlangt jedoch den Einsatz von speziellen Dünnringlagern. Aufgrund von vorhandenen Belastungsprofilen kann sogar der Einsatz von teuren Sonderlagern erforderlich sein. Die Montage von derartigen Ver- bindungsvorrichtungen ist aufwändig und kostenintensiv. Durch den Einsatz von Sonderlagern kann außerdem ein Lieferengpass bei der Herstellung von z.B. Hybridantrieben entstehen.According to the prior art, in a hybrid drive with an electric machine and with an internal combustion engine, means are provided for compensating an axial and / or radial offset of components or angular deviations. These tolerance compensation means are arranged, for example, between an internally mounted rotor of the electric machine and a crankshaft of the internal combustion engine or between the rotor and the transmission input. Usually elastic, round or by recesses on the edge of star-shaped disks, so-called "flexplates", are used as tolerance compensation means, whereby flexplates and rotor shafts are connected to one another by a screw connection in the prior art the screw connection between the shaft and flexplate, because of the pitch circle diameter required for a torque transmission, requires an axial space extension by at least one screw-in depth of the screw. The axial installation space extension is often not possible for design reasons, so that an enlargement of the inner diameter of the bearing is required. However, this requires the use of special thin-ring bearings. Due to existing load profiles even the use of expensive special bearings may be necessary. The assembly of such connection devices is complex and expensive. The use of special warehouses can also lead to a delivery bottleneck in the production of eg hybrid drives.

Vorteile der ErfindungAdvantages of the invention

Eine erfindungsgemäße Verbindungsvorrichtung für einen Antrieb, insbesondere einer elektrischen Maschine mit einer Verbrennungskraftmaschine oder einem Getriebe, umfasst eine drehbare Welle und ein mitdrehendes Toleranzausgleichsmittel, wobei eine Verbindungsstelle zwischen der Welle und dem Toleranzausgleichsmittel als Reibschweißverbindung ausgebildet ist. Ein erfindungsgemäßes Verfahren zur Herstellung einer Verbindungsvorrichtung wird durch Reibschweißen hergestellt. Dabei ist es von Vorteil, dass auf eine Schraubenverbindung zwischen Welle und Toleranzausgleichsmittel verzichtet werden kann, so dass sich eine axiale Bauraumverlängerung wegen des für eine Drehmomentübertragung nötigen Teilkreisdurchmessers erübrigt. Daher können Lager mit kleinem Durchmesser verwendet werden, und der vorhandene Bauraum reicht aus. Au- ßerdem erübrigt sich der Einsatz von Schrauben, so dass sich der Aufwand bei der Montage einfacher gestaltet. Insgesamt kann auch die Montage schneller durchgeführt werden, und es sind keine Sonderlager, beispielsweise Dünnringlager, mehr erforderlich. Dadurch entfällt günstigerweise eine Abhängigkeit von der Verfügbarkeit von Sonderlagern, wodurch mögliche Wartezeiten wegen verspäteter Auslieferungen vermieden werden können. Vielmehr können großseriengefertigte kleine Lager verwendet werden, was die Fertigungskosten minimiert.A connecting device according to the invention for a drive, in particular an electric machine with an internal combustion engine or a transmission, comprises a rotatable shaft and a co-rotating tolerance compensation means, wherein a connection point between the shaft and the tolerance compensation means is designed as a friction-welded connection. An inventive method for producing a connecting device is produced by friction welding. It is advantageous that can be dispensed with a screw connection between the shaft and tolerance compensation means, so that an axial space extension is unnecessary because of the necessary for a torque transmission pitch circle diameter. Therefore, bearings with a small diameter can be used, and the available space is sufficient. In addition, the use of screws is unnecessary, so that the Made effort easier during assembly. Overall, the assembly can be performed faster, and there are no special storage, such as thin ring bearings, more required. As a result, a dependency on the availability of special warehouses is advantageously eliminated, as a result of which possible waiting times due to delayed deliveries can be avoided. Rather, mass-produced small bearings can be used, which minimizes production costs.

Günstigerweise können durch Reibschweißen Stahlteile verschiedener Zusammenstellung miteinander verbunden werden. Es ist auch möglich, verschiedene Werkstoffe, beispielsweise Stahl und Aluminium, Stahl und Keramik usw., durch Reibschweißen miteinander zu verbinden. Die Welle und das Toleranzausgleichsmittel können somit aus verschiedenen Werkstoffen gefertigt sein. Reibschweißen erfolgt auf der Basis von Wärmediffusion. Eine Eindringtiefe von Aluminium in Korngrenzen von Stahl beträgt etwa 0,01 mm und ermöglicht eine belastbare, zuverlässige Verbindung zwischen den Bauteilen.Conveniently, by friction welding steel parts of different composition can be connected together. It is also possible to combine different materials, such as steel and aluminum, steel and ceramics, etc. by friction welding. The shaft and the tolerance compensation means can thus be made of different materials. Friction welding is based on thermal diffusion. A penetration depth of aluminum in grain boundaries of steel is about 0.01 mm and allows a reliable, reliable connection between the components.

Günstigerweise können die Welle und/oder das Toleranzausgleichsmittel aus gehärteten Werkstoffen gefertigt sein, denn eine Temperaturerhöhung beim Reibschweißen ist lokal, so dass bereits vorgehärtete Bauteile reibgeschweißt werden können, ohne dass die Härtung grundsätzlich beeinträchtigt wird. Einem Härterverlust kann durch gezielte Abkühlgeschwindigkeit entgegengewirkt werden. Je nach Härtegrad des Materials kann die Abkühlgeschwindigkeit beim Reibschweißen angepasst werden.Conveniently, the shaft and / or the tolerance compensation means can be made of hardened materials, because a temperature increase during friction welding is local, so that already pre-hardened components can be friction-welded, without the hardening being fundamentally impaired. A loss of hardener can be counteracted by targeted cooling rate. Depending on the hardness of the material, the cooling rate during friction welding can be adjusted.

Raue Oberflächen begünstigen das Reibschweißen, weil ein derarti- ges Verbindungsverfahren auf dem Entstehen von Reibungswärme - A -Rough surfaces promote friction welding, because such a bonding process depends on the generation of frictional heat - A -

beruht, welche bei rauen Oberflächen schneller erreicht werden kann. Bevorzugt wird somit eine Oberfläche der Welle und/oder des Toleranzausgleichsmittels wenigstens im Bereich der Verbindungsstelle vor dem Reibschweißen definiert aufgeraut. In einer bevorzug- ten Ausführung der erfindungsgemäßen Verbindungsvorrichtung ist das Toleranzausgleichsmittel aus Federstahl gefertigt, wobei es sich als besonders günstig erwiesen hat, eine Oberfläche des Federstahls zumindest partiell, z.B. im Bereich von Reibschweißstellen, aufzu- rauen, z.B. durch Sandstrahlen. Dadurch wird günstigerweise eine definierte Rauheit erreicht, um eine höhere Reibungswärme zu erzielen.which can be achieved faster on rough surfaces. Preferably, therefore, a surface of the shaft and / or the tolerance compensation means is roughened defined at least in the region of the joint before the friction welding. In a preferred embodiment of the connecting device according to the invention the tolerance compensation means is made of spring steel, wherein it has proved to be particularly favorable, a surface of the spring steel at least partially, for. in the area of friction welds, roughening, e.g. by sandblasting. As a result, a defined roughness is advantageously achieved in order to achieve a higher frictional heat.

Besonders bevorzugt werden die Welle und das Toleranzausgleichsmittel im Bereich der Verbindungsstelle gestaucht. Die Stau- chung kann auf Welle und Toleranzausgleichsmittel gleich verteilt sein, indem Welle und Toleranzausgleichsmittel gegeneinander geführt werden. Je nach Formgebung kann jedoch auch vorgesehen sein, dass die Stauchung auf beide Werkstückteile unterschiedlich verteilt wird, so dass bei der Stauchung das Toleranzausgleichsmittel gegen die Welle oder umgekehrt geführt wird. Weist die Verbindungsstelle vor der Stauchung beispielsweise eine Länge von insgesamt 12 mm, also 6mm pro Bauteil, auf, kann nach der Stauchung beispielsweise nur noch eine Länge von 6 bis 8 mm übrig bleiben. Eine günstige Verkürzung kann durch Versuche ermittelt werden. Dies kann in einem Toleranzbereich von ± 0,3 mm reproduzierbar sein. Ein Gesamtrundlauffehler kann insbesondere höchstens 0,3 mm betragen. Bei einer serienmäßigen Fertigung können Toleranzen auch geringer ausfallen. Erfolgt die Bearbeitung der Welle nach dem Reibschweißen, spielen diese Toleranzen günstigerweise keine RoI- Ie. In einer günstigen Ausgestaltung umgibt die Verbindungsstelle eine Drehachse der Welle konzentrisch. Die Verbindungsstelle kann axial außerhalb, d.h. vor der Welle angeordnet sein oder auch so, dass sie die Welle konzentrisch umgibt. Das Toleranzausgleichsmittel ist vorzugsweise in der Art einer Scheibe ausgebildet, die konzentrisch zur Welle angeordnet ist. Dabei kann die Welle durch das Toleranzausgleichsmittel hindurch greifen oder das Toleranzausgleichsmittel kann auf eine Stirnseite der Welle aufgesetzt sein. Ist das Toleranz- ausgleichsmittel scheibenförmig ausgebildet, sitzt die Welle mit ihrer Stirnseite direkt auf der planen Scheibe auf. Das Toleranzausgleichsmittel und die Welle können an der Verbindungsstelle auch durch einen Bund beabstandet sein, wobei der Bund sowohl an der Welle als auch am Toleranzausgleichsmittel oder auch an beiden ausgebildet sein kann.Particularly preferably, the shaft and the tolerance compensation means are compressed in the region of the connection point. The accumulation can be distributed equally on the shaft and the tolerance compensation means by guiding the shaft and the tolerance compensation means against each other. Depending on the shape, however, it may also be provided that the compression is distributed differently between the two workpiece parts, so that during the compression the tolerance compensation means is guided against the shaft or vice versa. If, for example, the connection point has a total length of 12 mm before compression, ie 6 mm per component, after compression, for example, only a length of 6 to 8 mm can remain. A favorable shortening can be determined by experiments. This can be reproducible within a tolerance range of ± 0.3 mm. A total run-out error may in particular be at most 0.3 mm. In a mass production tolerances can also be lower. If the machining of the shaft takes place after friction welding, these tolerances favorably do not play any roles. In a favorable embodiment, the connection point concentrically surrounds an axis of rotation of the shaft. The connection point can be arranged axially outside, ie in front of the shaft or else so that it concentrically surrounds the shaft. The tolerance compensation means is preferably formed in the manner of a disc which is arranged concentrically to the shaft. In this case, the shaft can reach through the tolerance compensation means or the tolerance compensation means can be placed on an end face of the shaft. If the tolerance compensation means is disk-shaped, the shaft sits with its front side directly on the flat disk. The tolerance compensation means and the shaft may be spaced at the junction by a collar, the collar may be formed on both the shaft and the tolerance compensation means or both.

In einer günstigen Ausführungsform der erfindungsgemäßen Verbindungsvorrichtung kann das Toleranzausgleichsmittel an der Verbindungsstelle einen Bund ausbilden und hinter einer Stirnseite der WeI- Ie angeordnet sein. Dabei weist auch die Welle vorzugsweise einen zum Toleranzausgleichsmittel hin weisenden Rand oder Bund auf.In a favorable embodiment of the connecting device according to the invention, the tolerance compensation means can form a collar at the connection point and be arranged behind an end face of the branch. In this case, the shaft also preferably has an edge or collar pointing towards the tolerance compensation means.

Bei einer alternativen Ausführungsform kann das Toleranzausgleichsmittel mit einem Bund axial außerhalb an der Stirnseite der Welle angeordnet sein. Es kann auch vorgesehen sein, dass das Toleranzausgleichsmittel im Bereich der Verbindungsstelle flach axial außerhalb an der Stirnseite der Welle mit der Welle verbunden ist, wobei kein Bund an dem Toleranzausgleichsmittel ausgebildet ist. Je nach vorhandenem Bauraum und Ausgestaltung der Verbindungs- Vorrichtung kann zwischen diesen Varianten abgewechselt werden. ZeichnungenIn an alternative embodiment, the tolerance compensation means may be arranged with a collar axially outside on the front side of the shaft. It can also be provided that the tolerance compensation means in the region of the connection point is connected flat axially outside on the front side of the shaft with the shaft, wherein no collar is formed on the tolerance compensation means. Depending on the available space and design of the connection device can be alternated between these variants. drawings

Weitere Ausführungsformen, Aspekte und Vorteile der Erfindung er- geben sich auch unabhängig von ihrer Zusammenfassung in Ansprüchen, ohne Beschränkung der Allgemeinheit aus nachfolgend anhand von Zeichnungen dargestellten Ausführungsbeispielen der Erfindung.Further embodiments, aspects and advantages of the invention also emerge independently of their combination in claims, without limiting the generality, from exemplary embodiments of the invention shown below with reference to drawings.

Im Folgenden zeigen:In the following show:

Fig. 1 eine Rotorlagerung nach dem Stand der Technik;Fig. 1 shows a rotor bearing according to the prior art;

Fig. 2 eine Ausführungsform einer erfindungsgemäßen Verbindungsvorrichtung; Fig. 3 eine alternative Ausführungsform zu Fig. 2;2 shows an embodiment of a connecting device according to the invention; Fig. 3 shows an alternative embodiment to Fig. 2;

Fig. 4 eine weitere Variante einer Ausführungsform; und4 shows a further variant of an embodiment; and

Fig. 5 eine alternative Variante zu Fig. 4.5 shows an alternative variant to FIG. 4.

Beschreibung der AusführungsbeispieleDescription of the embodiments

Fig. 1 zeigt schematisch eine bekannte Ausführungsform einer erfindungsgemäßen Verbindungsvorrichtung für einen Hybridantrieb mit einer elektrischen Maschine und einer Verbrennungskraftmaschine, wobei die elektrische Maschine einen Rotor 16 und einen Stator 17 umfasst. Der Rotor 16 umfasst eine drehbare Welle 10 mit einer Drehachse 24, die ein Gehäuse 18 der elektrischen Maschine an dessen beiden Stirnseiten durchsetzt, mit einem Lager 19. Eine kur- belwellenseitige Lagerung der Welle 10 ist nicht gezeigt. Zum Aus- gleich von Toleranzen zwischen der elektrischen Maschine und der nicht dargestellten Verbrennungskraftmaschine, wie beispielsweise einem axialen oder radialen Versatz oder Winkelabweichungen, ist zwischen dem eigengelagerten Rotor 16 und der nicht dargestellten Kurbelwelle der Verbrennungskraftmaschine bzw. zwischen dem Rotor 16 und einem Getriebeeingang eines mit der Verbrennungskraft- maschine verbundenen Getriebes ein mitdrehendes Toleranzausgleichmittel 11 vorgesehen, wobei zwischen der Welle 10 und dem Toleranzausgleichsmittel 11 eine Verbindungsstelle 12 ausgebildet ist. Das Toleranzausgleichsmittel 11 ist scheibenförmig ausgebildet und wird auch Flexplate genannt. Bei der Rotorlagerung nach dem Stand der Technik erfolgt eine Verbindung zwischen der Welle 10 und dem Toleranzausgleichsmittel 11 über Schrauben 20. Diese bewirken für die Lagerung des Rotors 16 wegen des für die Drehmomentübertragung nötigen Teilkreisdurchmessers eine zusätzliche axiale Bauraumverlängerung. Da eine derartige Verlängerung oft nicht möglich ist, wird als Ausgleich hierfür ein Innendurchmesser 22 des Lagers 19 vergrößert, so dass in Fig. 1 als Lager 19 ein Dünnringlager eingesetzt werden muss.1 shows schematically a known embodiment of a connecting device according to the invention for a hybrid drive with an electric machine and an internal combustion engine, wherein the electric machine comprises a rotor 16 and a stator 17. The rotor 16 comprises a rotatable shaft 10 with a rotation axis 24, which passes through a housing 18 of the electrical machine at its two end faces, with a bearing 19. A kurwellenwellenseitige bearing of the shaft 10 is not shown. To compensate for tolerances between the electric machine and the internal combustion engine, not shown, such as an axial or radial offset or angular deviations, between the rotor 16 and the not shown crankshaft of the internal combustion engine or between the rotor 16 and a transmission input of a machine connected to the internal combustion engine a co-rotating tolerance compensation means 11 is provided, wherein between the shaft 10 and the tolerance compensation means 11, a connection point 12 is formed. The tolerance compensation means 11 is disc-shaped and is also called flexplate. In the rotor bearing according to the prior art, a connection between the shaft 10 and the tolerance compensation means 11 via screws 20. These cause for the storage of the rotor 16 because of the necessary for the torque transmission pitch circle diameter an additional axial space extension. Since such an extension is often not possible, an inner diameter 22 of the bearing 19 is increased to compensate for this, so that in Fig. 1 as a bearing 19, a thin-ring bearing must be used.

Fig. 2 zeigt eine Ausführungsform einer erfindungsgemäßen Verbin- dungsvorrichtung mit einer zu Fig. 1 vergleichbaren Lagerung der Welle 10. Gleiche Elemente werden in den Figuren mit gleichen Bezugszeichen versehen. Die Verbindungsstelle 12 zwischen der Welle 10 und dem scheibenförmigen Toleranzausgleichmittel 11 ist jedoch nicht als Schraubenverbindung ausgebildet, sondern als Reib- Schweißverbindung. Durch den Wegfall der Befestigungsschrauben ist ein Innendurchmesser 22 des Lagers 19 der Welle 10 und auch der notwendige Außendurchmesser der Welle 10 an der Lagerung kleiner, wodurch vorteilhafterweise ein Lager 19 mit kleinerem Durchmesser bzw. preiswerte Großserienlager eingesetzt werden können. Da beim Reibschweißen ein Bindemechanismus auf Wärmediffusion beruht, können Stahlteile verschiedener Zusammensetzung und sogar verschiedene Werkstoffe miteinander verbunden werden. In Fig. 1 sind die Welle 10 und das Toleranzausgleichsmittel 11 aus verschiedenen Werkstoffen gefertigt und durch Reibschweißen miteinander verbunden. Beim Reibschweißen ist eine Temperaturerhöhung nur lokal ausgebildet, so dass es möglich ist, bereits gehärtete Teile zu schweißen, ohne dass die Härtung grundsätzlich beeinträchtigt wird. Die Welle 10 und/oder das Toleranzausgleichsmittel 11 können somit aus vorgehärteten Werkstoffen gefertigt sein. Eine Oberfläche 15 der Welle 10 und/oder des Toleranzausgleichsmittels 11 sind wenigstens im Bereich der Verbindungsstelle 12 vor dem Reibschweißen definiert aufgeraut, beispielsweise sandgestrahlt, womit eine höhere Reibungswärme und somit ein stärkerer Bindemechanismus erzielt werden kann. Anschließend werden die Welle 10 und das Toleranzausgleichsmittel 11 im Bereich der Verbindungsstelle 12 gestaucht. Je nach Formgebung kann die Stauchung auf beide Bauteile gleich oder unterschiedlich verteilt werden.FIG. 2 shows an embodiment of a connecting device according to the invention with a bearing 10 which can be compared to FIG. 1. The same elements are provided with the same reference numbers in the figures. However, the connection point 12 between the shaft 10 and the disc-shaped tolerance compensation means 11 is not formed as a screw connection, but as a friction welded connection. By eliminating the fastening screws, an inner diameter 22 of the bearing 19 of the shaft 10 and also the necessary outer diameter of the shaft 10 on the bearing is smaller, whereby advantageously a bearing 19 with a smaller diameter or low-cost mass production can be used. Since friction welding uses a binding mechanism based on thermal diffusion, steel parts of different composition and even different materials can be joined together. In Fig. 1, the shaft 10 and the tolerance compensation means 11 are made of different materials and joined together by friction welding. In friction welding, a temperature increase is only locally formed, so that it is possible to weld already hardened parts, without the curing is fundamentally impaired. The shaft 10 and / or the tolerance compensation means 11 can thus be made of precured materials. A surface 15 of the shaft 10 and / or the tolerance compensation means 11 are roughened defined at least in the region of the joint 12 before the friction welding, for example sandblasted, whereby a higher frictional heat and thus a stronger binding mechanism can be achieved. Subsequently, the shaft 10 and the tolerance compensation means 11 are compressed in the region of the connection point 12. Depending on the shape, the compression can be distributed equally or differently to both components.

In Fig. 2 ist am Toleranzausgleichsmittel 11 an der Verbindungsstelle 12 einen eine zentrale Öffnung des scheibenförmigen Toleranzausgleichsmittels 11 umgebenden Bund 13 ausgebildet, wobei das Toleranzausgleichsmittel 11 axial hinter einer Stirnseite 14 der Welle 10 angeordnet ist. An der Stirnseite 14 der Welle 10 ist ein zum Bund 13 gerichteter Rand ausgebildet, der in Durchmesser und Breite mit dem Bund 13 des Toleranzausgleichsmittels 11 korrespondiert. Die Verbindungsstelle 12 zwischen der Welle 10 und dem Toleranzausgleichsmittel 11 umgibt die Welle 10 konzentrisch. In Fig. 3 ist eine Detailansicht einer Verbindungsstelle 12 zwischen einer Welle 10 und einem scheibenförmigen Toleranzausgleichsmittel 11 in einer alternativen Ausführungsform gezeigt, wobei das Toleranzausgleichsmittel 11 an der Verbindungsstelle 12 einen eine zent- rale Öffnung des scheibenförmigen Toleranzausgleichsmittels 11 umgebenden Bund 13 ausbildet und axial außerhalb an der Stirnseite 14 der Welle 10 angeordnet ist. Durch die Veränderung eines Durchmessers 21 der Verbindungsstelle 12 kann die Verbindung an eine Drehmomentanforderung angepasst werden. Die Verbindungs- stelle 12 umgibt die Drehachse 24 der Welle 10 konzentrisch.In Fig. 2, a central opening of the disc-shaped tolerance compensation means 11 surrounding collar 13 is formed on the tolerance compensation means 11 at the junction 12, wherein the tolerance compensation means 11 is disposed axially behind an end face 14 of the shaft 10. On the front side 14 of the shaft 10, a collar 13 directed to the edge is formed, which corresponds in diameter and width with the collar 13 of the tolerance compensation means 11. The joint 12 between the shaft 10 and the tolerance compensation means 11 surrounds the shaft 10 concentrically. FIG. 3 shows a detail view of a connection point 12 between a shaft 10 and a disc-shaped tolerance compensation means 11 in an alternative embodiment, wherein the tolerance compensation means 11 forms a collar 13 surrounding a central opening of the disc-shaped tolerance compensation means 11 at the connection point 12 and axially outside is arranged on the front side 14 of the shaft 10. By changing a diameter 21 of the connection point 12, the connection can be adapted to a torque request. The connection point 12 concentrically surrounds the axis of rotation 24 of the shaft 10.

In den Fig. 4 und 5 werden konstruktive Varianten einer Verbindungsstelle 12 zwischen einer Welle 10 und einem scheibenförmigen Toleranzausgleichsmittel 11 gezeigt, wobei das Toleranzausgleichs- mittel 11 jeweils bundlos ausgebildet ist und axial außerhalb an der Stirnseite 14 der Welle 10 angeordnet ist. Das Toleranzausgleichsmittel 11 setzt bei diesen alternativen Ausführungsformen der Erfindung flach auf der Stirnseite 14 der Welle 10 an. Die Welle 10 weist in Fig. 4 eine andere Grundform auf als in Fig. 5, wobei die Welle 10 in Fig. 4 im Bereich der Verbindungsstelle 12 jeweils geteilt ist und eine axiale Ausnehmung 23 aufweist, die von einer Ringstruktur 25 mit zwei Ringen umgeben ist, während in Fig. 5 die Welle 10 im Bereich der Verbindungsstelle 12 eben mit dem Toleranzausgleichsmittel 11 abschließt. In FIGS. 4 and 5 constructional variants of a connection point 12 between a shaft 10 and a disc-shaped tolerance compensation means 11 are shown, wherein the Toleranzausgleichs- medium 11 is formed in each case frangeless and is arranged axially outside on the end face 14 of the shaft 10. The tolerance compensation means 11 sets in these alternative embodiments of the invention flat on the end face 14 of the shaft 10 at. The shaft 10 has a different basic shape in FIG. 4 than in FIG. 5, the shaft 10 being divided in each case in the region of the connection point 12 in FIG. 4 and having an axial recess 23 surrounded by a ring structure 25 with two rings is, while in Fig. 5, the shaft 10 in the region of the junction 12 just with the tolerance compensation means 11 closes.

Claims

Patentansprüche claims 1. Verbindungsvorrichtung für einen Antrieb, insbesondere einer elektrischen Maschine mit einer Verbrennungskraftmaschine oder mit einem an einer Verbrennungskraftmaschine angeordneten Getriebe, umfassend eine drehbare Welle (10) und ein mitdrehendes Toleranzausgleichsmittel (11 ), wobei zwischen der Welle (10) und dem Toleranzausgleichsmittel (11 ) eine Verbindungsstelle (12) ausgebildet ist, dadurch gekennzeichnet, dass die Verbindungsstelle (12) zwischen der Welle (10) und dem Toleranzausgleichsmittel (11 ) als Reibschweißverbin- düng ausgebildet ist.1. A connecting device for a drive, in particular an electric machine with an internal combustion engine or with a arranged on an internal combustion engine transmission, comprising a rotatable shaft (10) and a mitdrehendes tolerance compensation means (11), wherein between the shaft (10) and the tolerance compensation means (11 ) a connection point (12) is formed, characterized in that the connection point (12) between the shaft (10) and the tolerance compensation means (11) is designed as Reibschweißverbin- düng. 2. Verbindungsvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die Welle (10) und das Toleranzausgleichsmittel (11 ) aus unterschiedlichen Werkstoffen gefertigt sind.2. Connecting device according to claim 1, characterized in that the shaft (10) and the tolerance compensation means (11) are made of different materials. 3. Verbindungsvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Welle (10) und/oder das Toleranzausgleichsmittel (11 ) aus gehärteten Werkstoffen gefertigt sind.3. Connecting device according to claim 1 or 2, characterized in that the shaft (10) and / or the tolerance compensation means (11) are made of hardened materials. 4. Verbindungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass Verbindungsstelle (12) eine Drehachse (24) der Welle (10) konzentrisch umgibt.4. Connecting device according to one of the preceding claims, characterized in that the connection point (12) concentrically surrounds an axis of rotation (24) of the shaft (10). 5. Verbindungsvorrichtung nach Anspruch 4, dadurch gekenn- zeichnet, dass das Toleranzausgleichsmittel (11 ) an der Ver- bindungssteile (12) einen Bund (13) ausbildet und axial außerhalb an der Stirnseite (14) der Welle (10) angeordnet ist.5. Connecting device according to claim 4, characterized in that the tolerance compensating means (11) is connected to the connecting parts (12) forms a collar (13) and is arranged axially outside on the end face (14) of the shaft (10). 6. Verbindungsvorrichtung nach einem der vorhergehenden An- Sprüche, dadurch gekennzeichnet, dass die Verbindungsstelle (12) die Welle (10) konzentrisch umgibt.6. Connecting device according to one of the preceding claims, characterized in that the connection point (12) surrounds the shaft (10) concentrically. 7. Verbindungsvorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass das Toleranzausgleichsmittel (11) an der Ver- bindungsstelle (12) einen Bund (13) ausbildet und axial hinter einer Stirnseite (14) der Welle (10) angeordnet ist.7. Connecting device according to claim 6, characterized in that the tolerance compensation means (11) at the connection point (12) forms a collar (13) and axially behind an end face (14) of the shaft (10) is arranged. 8. Verbindungsvorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass das Toleranzausgleichsmittel (11 ) bundlos axial außerhalb an der Stirnseite (14) der Welle (10) angeordnet ist.8. Connecting device according to claim 6, characterized in that the tolerance compensation means (11) is arranged fretless axially outside on the end face (14) of the shaft (10). 9. Verfahren zur Herstellung einer Verbindungsvorrichtung für einen Antrieb, insbesondere einer elektrischen Maschine mit einer Verbrennungskraftmaschine, zum Herstellen einer Verbin- düng zwischen einer drehbaren Welle (10) und einem mitdrehenden Toleranzausgleichmittel (11 ) an einer Verbindungsstelle (12), dadurch gekennzeichnet, dass die Verbindung durch Reibschweißen hergestellt wird.9. A method for producing a connecting device for a drive, in particular an electric machine with an internal combustion engine, for producing a connection düng between a rotatable shaft (10) and a co-rotating tolerance compensation means (11) at a connection point (12), characterized in that the connection is made by friction welding. 10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass eine Oberfläche (15) der Welle (10) und/oder des Toleranzausgleichsmittels (11 ) wenigstens im Bereich der Verbindungsstelle (12) vor dem Reibschweißen definiert aufgeraut wird. 10. The method according to claim 9, characterized in that a surface (15) of the shaft (10) and / or the tolerance compensation means (11) is roughened defined at least in the region of the connection point (12) before the friction welding. 11. Verfahren nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass die Welle (10) und das Toleranzausgleichsmittel (11 ) im Bereich der Verbindungsstelle (12) gestaucht werden.11. The method according to claim 9 or 10, characterized in that the shaft (10) and the tolerance compensation means (11) in the region of the connection point (12) are upset. 12. Verfahren nach Anspruch 11 , dadurch gekennzeichnet, dass bei der Stauchung die Welle (10) und das Toleranzausgleichsmittel (11 ) gegeneinander geführt werden.12. The method according to claim 11, characterized in that during the compression, the shaft (10) and the tolerance compensation means (11) are guided against each other. 13. Verfahren nach Anspruch 11 , dadurch gekennzeichnet, dass bei der Stauchung das Toleranzausgleichsmittel (11 ) gegen die13. The method according to claim 11, characterized in that during the compression of the tolerance compensation means (11) against the Welle (10) geführt wird.Shaft (10) is guided. 14. Verfahren nach einem der Ansprüche 9 bis 13, dadurch gekennzeichnet, dass eine Abkühlgeschwindigkeit beim Reib- schweißen an einen Härtegrad des Materials angepasst wird. 14. The method according to any one of claims 9 to 13, characterized in that a cooling rate during friction welding is adapted to a degree of hardness of the material.
PCT/EP2006/050362 2005-04-06 2006-01-23 Connection device for a drive and method for producing said connection device Ceased WO2006106002A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005015728A DE102005015728A1 (en) 2005-04-06 2005-04-06 Connecting device for a drive and method for producing a connecting device
DE102005015728.9 2005-04-06

Publications (1)

Publication Number Publication Date
WO2006106002A1 true WO2006106002A1 (en) 2006-10-12

Family

ID=36003239

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/050362 Ceased WO2006106002A1 (en) 2005-04-06 2006-01-23 Connection device for a drive and method for producing said connection device

Country Status (2)

Country Link
DE (1) DE102005015728A1 (en)
WO (1) WO2006106002A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11859199B2 (en) 2017-10-16 2024-01-02 Glaxosmithkline Biologicals Sa Adenoviral vectors with two expression cassettes encoding RSV antigenic proteins or fragments thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011086770A1 (en) * 2011-11-22 2013-05-23 Mtu Aero Engines Gmbh Friction welding of component of continuous-flow machine, comprises moving components to be welded relative to each other or to tool to generate heat, and maintaining heated components with component regions to be welded against each other
FR3126897B1 (en) * 2021-09-10 2025-01-31 Airbus Operations Sas Process for optimizing friction welding of an assembly of at least two parts made of a nickel-chromium-based alloy hardened by γ’’ phase precipitation assembled by friction welding

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631585A (en) * 1966-10-17 1972-01-04 North American Rockwell Method of making a friction-welded drive axle shaft having an annular section of flash metal
US4242888A (en) * 1977-11-09 1981-01-06 Toyota Jidosha Kogyo Kabushiki Kaisha External member for a tripod joint and method for manufacturing same
WO1995032833A1 (en) * 1994-05-31 1995-12-07 General Electric Company Method for friction welding a shaft to a disk and assembly formed thereby
FR2732427A1 (en) * 1995-03-31 1996-10-04 Valeo HYDROKINETIC COUPLING APPARATUS, PARTICULARLY FOR MOTOR VEHICLE
WO2004087365A1 (en) * 2003-03-31 2004-10-14 Magna Steyr Fahrzeugtechnik Ag & Co Kg Method for welding a rotationally symmetrical part to a hub part

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3935417A1 (en) * 1989-10-24 1991-04-25 Bosch Siemens Hausgeraete Friction welding support pin inside wall of refrigerator - by locating pin from the outside so that its flange is not visible
DE9014280U1 (en) * 1990-10-15 1990-12-20 Carl Hurth Maschinen- und Zahnradfabrik GmbH & Co, 8000 München Hollow shaft
DE4117594A1 (en) * 1991-05-29 1991-10-24 Zahnradfabrik Friedrichshafen Tube and plate friction joint - has flange at the tube end to be bonded to the plate surface
DE29711717U1 (en) * 1997-07-04 1997-11-06 Engelbrecht, Joachim, 33803 Steinhagen Stamp printer, electronic output device for outputting alphanumeric and / or graphic characters

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631585A (en) * 1966-10-17 1972-01-04 North American Rockwell Method of making a friction-welded drive axle shaft having an annular section of flash metal
US4242888A (en) * 1977-11-09 1981-01-06 Toyota Jidosha Kogyo Kabushiki Kaisha External member for a tripod joint and method for manufacturing same
WO1995032833A1 (en) * 1994-05-31 1995-12-07 General Electric Company Method for friction welding a shaft to a disk and assembly formed thereby
FR2732427A1 (en) * 1995-03-31 1996-10-04 Valeo HYDROKINETIC COUPLING APPARATUS, PARTICULARLY FOR MOTOR VEHICLE
WO2004087365A1 (en) * 2003-03-31 2004-10-14 Magna Steyr Fahrzeugtechnik Ag & Co Kg Method for welding a rotationally symmetrical part to a hub part

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11859199B2 (en) 2017-10-16 2024-01-02 Glaxosmithkline Biologicals Sa Adenoviral vectors with two expression cassettes encoding RSV antigenic proteins or fragments thereof

Also Published As

Publication number Publication date
DE102005015728A1 (en) 2006-10-12

Similar Documents

Publication Publication Date Title
DE69905815T2 (en) Housing for automotive differential gear
EP2214862B1 (en) Shaft-hub component and method for producing such a component
EP2398671B1 (en) Fitting for a vehicle seat
DE69901141T2 (en) Manufacturing process for automotive differential gears
EP2726714B1 (en) Camshaft with axially slidable cam packet
EP2032300A1 (en) Hydrodynamic torque converter and method for producing the same
DE10301057A1 (en) Rotator with bearing and process for its preparation
DE102012011002A1 (en) Rotor shaft i.e. hollow multi-part rotor shaft, for rotor of e.g. electric motor for motor car, has pipe element and flange parts fixed against axial displacement by snap connection and connected with each other in torque-proof manner
EP0563949B1 (en) Process particularly for the powder metallurgical manufacture of a gear wheel with a coupling device
DE19853798C1 (en) Connection between two shafts is a sleeve pushed over the teeth or splines at the shaft ends in a press fit with malleable distortion to mold round the teeth/splines in a keyed and positive fit
DE102019114697A1 (en) COMPOSITE METAL FLEX PLATE
EP3180498B1 (en) Camshaft with sliding cam packet
EP1961101A1 (en) Mount system for an electric motor
EP0372663B1 (en) Method for fastening a discoid rotation-symmetrical structural body to a shaft
EP2155532B1 (en) Ball screw drive
DE102018211374B4 (en) Rotor carrier for an electric machine
WO2011072634A1 (en) Outer plate carrier
DE102014216929A1 (en) Actuator for a coupling with a multi-part rotor and a contoured wire spring
EP0969946B1 (en) Friction welded shaft
WO2006106002A1 (en) Connection device for a drive and method for producing said connection device
EP3779205B1 (en) Fluid pump with an electrical drive
DE102014008377A1 (en) Wheel flange joint housing arrangement for a side shaft of a vehicle
WO2015188822A1 (en) Spindle-type actuator for a distance-controlled adjustment device, and friction clutch comprising an adjustment device of said type
WO2019206556A1 (en) Method for producing a shaft-hub connection, and motor vehicle shaft having such a connection
WO2013023829A2 (en) Electric machine and method for assembling an electric machine

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: RU

WWW Wipo information: withdrawn in national office

Country of ref document: RU

122 Ep: pct application non-entry in european phase

Ref document number: 06701264

Country of ref document: EP

Kind code of ref document: A1

WWW Wipo information: withdrawn in national office

Ref document number: 6701264

Country of ref document: EP