DE102012112379A1 - Drive axle of mobile working machine e.g. industrial truck, has engine compartment and transmission chamber that are located adjacent to one another in axle housing of drive axle and are fluidly connected to each other through opening - Google Patents
Drive axle of mobile working machine e.g. industrial truck, has engine compartment and transmission chamber that are located adjacent to one another in axle housing of drive axle and are fluidly connected to each other through opening Download PDFInfo
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- DE102012112379A1 DE102012112379A1 DE201210112379 DE102012112379A DE102012112379A1 DE 102012112379 A1 DE102012112379 A1 DE 102012112379A1 DE 201210112379 DE201210112379 DE 201210112379 DE 102012112379 A DE102012112379 A DE 102012112379A DE 102012112379 A1 DE102012112379 A1 DE 102012112379A1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
- F16H57/0486—Gearings with gears having orbital motion with fixed gear ratio
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- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
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- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0061—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electrical machines
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- 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
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0409—Features relating to lubrication or cooling or heating characterised by increasing efficiency, e.g. by reducing splash losses
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0457—Splash lubrication
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0476—Electric machines and gearing, i.e. joint lubrication or cooling or heating thereof
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- 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
- H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle
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- 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
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
- B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
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- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
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- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
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- 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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0038—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the wheel axle
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- 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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
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- 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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
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- 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
- B60L2200/00—Type of vehicles
- B60L2200/40—Working vehicles
- B60L2200/44—Industrial trucks or floor conveyors
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- 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
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/50—Structural details of electrical machines
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- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/36—Temperature of vehicle components or parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/60—Industrial applications, e.g. pipe inspection vehicles
- B60Y2200/62—Conveyors, floor conveyors
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/60—Electric or hybrid propulsion means for production processes
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- General Details Of Gearings (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
Die Erfindung betrifft eine Antriebsachse einer mobilen Arbeitsmaschine, insbesondere eines Flurförderzeugs, mit zumindest einem elektrischen Fahrmotor und einem von dem Fahrmotor angetriebenen Getriebe, das eine Radnabe antreibt, wobei der Fahrmotor in einem Motorraum und das Getriebe in einem Getrieberaum eines Achsgehäuses der Antriebsachse angeordnet sind und eine Flüssigkeitskühlung für den Fahrmotor vorgesehen ist sowie zur Schmierung des Getriebes im Getrieberaum Schmieröl vorgesehen ist.The invention relates to a drive axle of a mobile work machine, in particular of a truck, with at least one electric traction motor and driven by the traction motor gear that drives a wheel hub, wherein the traction motor in an engine compartment and the transmission are arranged in a gear compartment of an axle housing the drive axle and a liquid cooling is provided for the traction motor and lubrication oil is provided for lubrication of the transmission in the transmission chamber.
Antriebsachsen von Fahrzeugen mit einem oder mehreren elektrischen Fahrmotoren werden zunehmend mit einer Flüssigkeitskühlung für den Fahrmotor versehen, um eine höhere Leistungsdichte zu erzielen. Hierzu ist es bekannt, den Fahrmotor als trocken laufenden Fahrmotor auszubilden und im Inneren der Rotorwelle einen Kühlkanal auszubilden, der an einen Kühlflüssigkeitskreislauf angeschlossen ist und von Kühlflüssigkeit durchströmt wird. Derartige Antriebsachsen mit einer inneren Kühlung des trocken laufenden elektrischen Fahrmotors sind aus der
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Antriebsachse der eingangs genannten Gattung zur Verfügung zu stellen, die einen geringen Bauaufwand aufweist und hinsichtlich der Reibungsverluste und der Zuverlässigkeit verbessert ist.The present invention has for its object to provide a drive axle of the type mentioned available, which has a low construction cost and is improved in terms of friction losses and reliability.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Fahrmotor als nasslaufender Elektromotor ausgebildet ist und der Fahrmotor sowie das Getriebe einen gemeinsamen geschlossenen Ölhaushalt aufweisen, wobei der Motorraum und der Getrieberaum angrenzend aneinander in dem Achsgehäuse der Antriebsachse angeordnet sind und mittels zumindest einer Ausgleichsöffnung fluidtechnisch miteinander verbunden sind, wobei der Motorraum und der Getrieberaum mit Schmieröl teilbefüllt sind. Bei der erfindungsgemäßen Antriebsachse ist für den nasslaufenden Fahrmotor und das Getriebe ein gemeinsamer Ölhaushalt vorgesehen, so dass der Fahrmotor von dem bereits vorhandenen, in der Antriebsachse vorhandenen Schmieröl des Getriebes mitgekühlt werden kann. Die Ausführung des gemeinsamen Ölhaushalts als geschlossener Ölhaushalt führt zu einem geringen Bauaufwand, da für den geschlossenen Ölhaushalt in der Antriebsachse kein Kühlflüssigkeitskreislauf zur Umwälzung einer Kühlflüssigkeit erforderlich ist. Die fluidtechnische Verbindung des Motorraums mit dem Getrieberaum über eine Ausgleichsöffnung ermöglicht auf einfache Weise und mit geringem zusätzlichen Bauaufwand, einen gemeinsamen Ölhaushalt für den Fahrmotor und das Getriebe zu schaffen. Durch die vergrößerte Schmierölmenge kann mit einer Teilbefüllung des Motorraums und des Getrieberaums eine ausreichende Kühlung des Fahrmotors und Schmierung des Getriebes erzielt werden, so dass sich geringe Planschverluste des im Betrieb der Antriebsachse in das Schmieröl eintauchenden rotierenden Rotors des Fahrmotors erzielen lassen.This object is achieved in that the traction motor is designed as a wet-running electric motor and the traction motor and the transmission have a common closed oil budget, the engine compartment and the gear compartment adjacent to each other in the axle housing of the drive axle are arranged and fluidly connected to each other by means of at least one compensation opening are, with the engine compartment and the gear compartment are filled with lubricating oil. In the drive axle according to the invention a common oil budget is provided for the wet-running traction motor and the transmission, so that the traction motor can be mitgekühlt of the existing existing in the drive axle lubricating oil of the transmission. The execution of the common oil budget as a closed oil budget leads to a low construction cost, since no coolant circuit for circulating a coolant is required for the closed oil budget in the drive axle. The fluidic connection of the engine compartment with the gear compartment via a compensation opening allows a simple way and with little additional construction effort to create a common oil budget for the traction motor and the transmission. Due to the increased amount of lubricating oil can be achieved with a partial filling of the engine compartment and the gear compartment sufficient cooling of the drive motor and lubrication of the transmission, so that can achieve low churning losses during operation of the drive shaft in the lubricating oil immersed rotating rotor of the drive motor.
Mit besonderem Vorteil ist gemäß einer Ausführungsform der Erfindung zwischen dem Motorraum des Fahrmotors und dem Getrieberaum des Getriebes eine Schottwand angeordnet, die Unterhalb des Ölstands des Schmieröls mit der zumindest einen Ausgleichsöffnung versehen ist. Mit einer derartigen Schottwand und der unterhalb des Ölstands angeordneten Ausgleichsöffnung wird einerseits erzielt, dass der Motorraum und der Getrieberaum über die Ausgleichsöffnung fluidtechnisch miteinander verbunden sind, um den gemeinsamen Ölhaushalt zu bilden, und andererseits verhindert, dass sich während einer Kurvenfahrt das Schmieröl auf einer Seite, d. h. in dem Motorraum oder dem Getrieberaum, konzentriert. Die Schottwand ermöglicht somit auch bei einer Kurvenfahrt eine Kühlung des Fahrmotors und eine Schmierung des Getriebes.With particular advantage, according to one embodiment of the invention, a bulkhead is arranged between the engine compartment of the drive motor and the gear compartment of the transmission, which is provided below the oil level of the lubricating oil with the at least one compensation opening. With such a bulkhead and the compensation opening located below the oil level, it is achieved on the one hand that the engine compartment and the gear compartment are fluidly connected to one another via the compensation opening in order to form the common oil budget and, on the other hand, prevents the lubricating oil on one side during cornering , d. H. in the engine compartment or the gear compartment. The bulkhead thus allows even when cornering a cooling of the drive motor and lubrication of the transmission.
Gemäß einer vorteilhaften Weiterbildung der Erfindung weist der Fahrmotor eine mit dem Getriebe in trieblicher Verbindung stehende drehbare Rotorwelle auf, die in einem zwischen dem Motorraum des Fahrmotors und dem Getrieberaum des Getriebes angeordneten Lagerschild mittels einer Lagerung drehbar gelagert ist, wobei die Lagerung der Rotorwelle im Lagerschild dichtungsfrei ausgeführt ist. Die Ausführung des Motorraums und des Getrieberaums mit einem gemeinsamen Ölaushalt ermöglicht es, die Lagerung der Rotorwelle in dem Lagerschild zwischen dem Motorraum und dem Getrieberaum ohne Abdichtung durch eine Dichtungseinrichtung, insbesondere ohne Wellendichtring, auszuführen und ermöglicht es weiterhin, anstelle eines fettgeschmierten Lagers ein nassgeschmiertes Lager zur Lagerung der Rotorwelle im Achsgehäuse zu verwenden, das von dem Schmieröl geschmiert und gekühlt wird. Hierdurch kann bei der erfindungsgemäßen Antriebsachse eine Verringerung der Reibungsverluste und durch den Entfall eines Wellendichtringes eine hohe Zuverlässigkeit der Antriebsachse mit einem geringen Wartungsaufwand erzielt werden.According to an advantageous embodiment of the invention, the traction motor on a rotatably connected to the transmission in drive connection rotatable rotor shaft, which in a between the engine compartment of the traction motor and the gear compartment of the Transmission arranged bearing plate is rotatably supported by a bearing, wherein the bearing of the rotor shaft is executed in the bearing plate seal-free. The execution of the engine compartment and the gear housing with a common oil balance makes it possible to perform the bearing of the rotor shaft in the bearing plate between the engine compartment and the gear compartment without sealing by a sealing device, in particular without shaft seal, and further allows, instead of a grease-lubricated bearing a wet-lubricated bearing to use for supporting the rotor shaft in the axle housing, which is lubricated and cooled by the lubricating oil. As a result, in the drive axle according to the invention a reduction of the friction losses and by the omission of a shaft sealing ring a high reliability of the drive axle can be achieved with a low maintenance.
Hinsichtlich eines geringen Bauaufwandes ergeben sich Vorteile, wenn gemäß einer Weiterbildung der Erfindung das Lagerschild als Schottwand ausgebildet ist.With regard to a low construction costs, there are advantages if, according to a development of the invention, the end shield is designed as a bulkhead.
Mit besonderem Vorteil ist das Achsgehäuse im Bereich des Fahrmotors an der Außenfläche mit Kühlrippen versehen. Da der Fahrmotor zur Erzielung von kompakten Abmessungen der Antriebsachse in radialer Richtung direkt an der Innenwand und somit der Innenfläche des Achsgehäuses eingebaut ist und das Schmieröl mit der Innenwand des Achsgehäuses in Kontakt steht, kann mit einer von Kühlrippen gebildeten Verrippung des Achsgehäuses an der Außenfläche die Kühlung verbessert und bevorzugt ohne zusätzlichen Wärmetauscher ein Wärmeabfuhr an die Umgebung erzielt werden.With particular advantage, the axle housing in the region of the drive motor on the outer surface is provided with cooling fins. Since the traction motor to achieve compact dimensions of the drive axle in the radial direction is installed directly on the inner wall and thus the inner surface of the axle housing and the lubricating oil is in contact with the inner wall of the axle housing, can with a ribs formed by ribbing of the axle housing on the outer surface of the Cooling improved and preferably achieved without additional heat exchanger heat dissipation to the environment.
Zweckmäßigerweise ist gemäß einer Weiterbildung der Erfindung das Getriebe mit einer Bremseinrichtung zum Abbremsen der Radnabe, insbesondere einer Lamellenbremse, versehen. Die Bremseinrichtung ist somit ebenfalls in dem gemeinsamen Ölhaushalt angeordnet, so dass die Bremseinrichtung auf einfache Weise mitgekühlt werden kann.Conveniently, according to a development of the invention, the transmission is provided with a braking device for braking the wheel hub, in particular a multi-disc brake. The braking device is thus also arranged in the common oil budget, so that the braking device can be mitgekühlt in a simple manner.
Mit besonderem Vorteil ist gemäß einer Ausführungsform der Erfindung die Kühlung des Fahrmotors als Spritzölkühlung und/oder die Schmierung des Getriebes als Spritzölschmierung ausgeführt. Die Spritzölkühlung des Fahrmotors und die Spritzölschmierung des Getriebes ermöglicht es bei einem geringen Ölstand in dem teilbefüllten Achsgehäuse, eine ausreichende Kühlung des Fahrmotors und Schmierung des Getriebes sicherzustellen, so dass sich geringe Planschverluste des mit dem Rotor im Schmieröl eintauchenden Fahrmotors und des Getriebes im Betrieb der Antriebsachse ergeben.With particular advantage, according to one embodiment of the invention, the cooling of the traction motor designed as spray oil cooling and / or the lubrication of the transmission as a spray oil lubrication. The spray oil cooling of the drive motor and the spray oil lubrication of the transmission makes it possible to ensure adequate cooling of the drive motor and lubrication of the transmission at a low oil level in the partially filled axle housing, so that low churning losses of the immersed with the rotor in the lubricating oil drive motor and the transmission during operation of the Drive axle result.
Weitere Vorteile und Einzelheiten der Erfindung werden anhand des in der schematischen Figur dargestellten Ausführungsbeispiels näher erläutert.Further advantages and details of the invention will be explained in more detail with reference to the embodiment shown in the schematic figure.
In der Figur ist der Längsschnitt einer erfindungsgemäßen Antriebsachse
Die Antriebsachse
An dem radaußenseitigen Ende des Achsgehäuses
Das Getriebe
In dem Getrieberaum G ist weiterhin eine Bremseinrichtung B angeordnet, die als Lamellenbremse ausgebildet ist. Die Lamellenbremse umfasst mehrere drehende Lamellen, die mit dem Sonnenrad
Der Fahrmotor
Der Fahrmotor
Bei der erfindungsgemäßen Antriebsachse
Um zu verhindern, dass sich während einer Kurvenfahrt das Schmieröl auf einer Seite der Antriebsachse
Bei der erfindungsgemäßen Antriebsdachse
Durch den gemeinsamen geschlossenen Ölhaushalt wird im Betrieb der Antriebsachse
Die Antriebsachse
Durch die dichtungsfreie Ausführung der Lagerung der Rotorwelle
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 10318022 A1 [0002] DE 10318022 A1 [0002]
- DE 102008061449 A1 [0002] DE 102008061449 A1 [0002]
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210112379 DE102012112379A1 (en) | 2012-12-17 | 2012-12-17 | Drive axle of mobile working machine e.g. industrial truck, has engine compartment and transmission chamber that are located adjacent to one another in axle housing of drive axle and are fluidly connected to each other through opening |
CN201310693177.XA CN103863077B (en) | 2012-12-17 | 2013-12-17 | Driving vehicle bridge at least with an electric driving motors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210112379 DE102012112379A1 (en) | 2012-12-17 | 2012-12-17 | Drive axle of mobile working machine e.g. industrial truck, has engine compartment and transmission chamber that are located adjacent to one another in axle housing of drive axle and are fluidly connected to each other through opening |
Publications (1)
Publication Number | Publication Date |
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DE102012112379A1 true DE102012112379A1 (en) | 2014-06-18 |
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DE201210112379 Pending DE102012112379A1 (en) | 2012-12-17 | 2012-12-17 | Drive axle of mobile working machine e.g. industrial truck, has engine compartment and transmission chamber that are located adjacent to one another in axle housing of drive axle and are fluidly connected to each other through opening |
Country Status (2)
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CN (1) | CN103863077B (en) |
DE (1) | DE102012112379A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016209409A1 (en) * | 2016-05-31 | 2017-11-30 | Volkswagen Aktiengesellschaft | Drive unit for a motor vehicle |
DE102017213513A1 (en) * | 2017-08-03 | 2019-02-07 | Zf Friedrichshafen Ag | Oil supply arrangement of a vehicle with an electric machine |
CN112213324A (en) * | 2020-11-02 | 2021-01-12 | 成都泓睿科技有限责任公司 | Rotary light inspection machine drive shaft assembly structure |
CN112229851A (en) * | 2020-11-02 | 2021-01-15 | 成都泓睿科技有限责任公司 | Bottle light inspection machine |
WO2021008654A1 (en) * | 2019-07-12 | 2021-01-21 | Bpw Bergische Achsen Kg | Electric drive unit for a motor vehicle |
WO2021008653A1 (en) * | 2019-07-12 | 2021-01-21 | Bpw Bergische Achsen Kg | Electric drive unit for a motor vehicle |
EP4067145A1 (en) | 2021-04-02 | 2022-10-05 | Volvo Truck Corporation | Electric powertrain for truck |
WO2023088926A1 (en) * | 2021-11-22 | 2023-05-25 | Zf Friedrichshafen Ag | Electrically driven vehicle having wet-running service brakes |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108400670B (en) * | 2018-04-28 | 2024-05-03 | 合肥巨一动力系统有限公司 | Motor reducer integrated housing with cooling water channel |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10318022A1 (en) | 2003-04-19 | 2004-11-04 | Linde Ag | Electrical machine with improved cooling and drive axle with such an electrical machine |
DE102008061449A1 (en) | 2008-12-10 | 2010-06-17 | Linde Material Handling Gmbh | Drive axle for mobile work machine, particularly industrial truck, has electric traction motor, particularly three-phase machine, brake device and liquid cooling system for cooling traction motor and brake device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11118027A (en) * | 1997-10-15 | 1999-04-30 | Aisin Ai Co Ltd | Casing structure of manual transmission |
JP4639591B2 (en) * | 2004-01-14 | 2011-02-23 | トヨタ自動車株式会社 | Axle drive |
JP4074278B2 (en) * | 2004-09-09 | 2008-04-09 | ジヤトコ株式会社 | Baffle plate oil drain structure |
JP2006240429A (en) * | 2005-03-02 | 2006-09-14 | Toyota Motor Corp | Drive unit |
DE102006031787A1 (en) * | 2006-07-10 | 2007-04-12 | Zf Friedrichshafen Ag | Method for cooling wetplate disc brake especially for automatic transmission with different radial direction of coolant flow depending on setting of brake |
CN101728903B (en) * | 2008-10-31 | 2011-11-16 | 比亚迪股份有限公司 | Motor and transmission mechanism thereof |
JP2012082930A (en) * | 2010-10-14 | 2012-04-26 | Toyota Motor Corp | Electric vehicle drive system |
JP5760215B2 (en) * | 2011-01-24 | 2015-08-05 | 株式会社 神崎高級工機製作所 | Axle drive device for work vehicle |
-
2012
- 2012-12-17 DE DE201210112379 patent/DE102012112379A1/en active Pending
-
2013
- 2013-12-17 CN CN201310693177.XA patent/CN103863077B/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10318022A1 (en) | 2003-04-19 | 2004-11-04 | Linde Ag | Electrical machine with improved cooling and drive axle with such an electrical machine |
DE102008061449A1 (en) | 2008-12-10 | 2010-06-17 | Linde Material Handling Gmbh | Drive axle for mobile work machine, particularly industrial truck, has electric traction motor, particularly three-phase machine, brake device and liquid cooling system for cooling traction motor and brake device |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016209409A1 (en) * | 2016-05-31 | 2017-11-30 | Volkswagen Aktiengesellschaft | Drive unit for a motor vehicle |
DE102017213513A1 (en) * | 2017-08-03 | 2019-02-07 | Zf Friedrichshafen Ag | Oil supply arrangement of a vehicle with an electric machine |
US11585432B2 (en) | 2017-08-03 | 2023-02-21 | Zf Friedrichshafen Ag | Oil supply arrangement of a vehicle with an electric machine |
WO2021008654A1 (en) * | 2019-07-12 | 2021-01-21 | Bpw Bergische Achsen Kg | Electric drive unit for a motor vehicle |
WO2021008653A1 (en) * | 2019-07-12 | 2021-01-21 | Bpw Bergische Achsen Kg | Electric drive unit for a motor vehicle |
US11940044B2 (en) | 2019-07-12 | 2024-03-26 | Bpw Bergische Achsen Kg | Electric drive unit for a motor vehicle |
US12070998B2 (en) | 2019-07-12 | 2024-08-27 | Bpw Bergische Achsen Kg | Electric drive unit for a motor vehicle |
CN112213324A (en) * | 2020-11-02 | 2021-01-12 | 成都泓睿科技有限责任公司 | Rotary light inspection machine drive shaft assembly structure |
CN112229851A (en) * | 2020-11-02 | 2021-01-15 | 成都泓睿科技有限责任公司 | Bottle light inspection machine |
EP4067145A1 (en) | 2021-04-02 | 2022-10-05 | Volvo Truck Corporation | Electric powertrain for truck |
US11725722B2 (en) | 2021-04-02 | 2023-08-15 | Volvo Truck Corporation | Electric powertrain for truck |
WO2023088926A1 (en) * | 2021-11-22 | 2023-05-25 | Zf Friedrichshafen Ag | Electrically driven vehicle having wet-running service brakes |
Also Published As
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CN103863077B (en) | 2018-08-28 |
CN103863077A (en) | 2014-06-18 |
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