CN103863077A - Drive axle at least with one electric drive motor - Google Patents

Drive axle at least with one electric drive motor Download PDF

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Publication number
CN103863077A
CN103863077A CN201310693177.XA CN201310693177A CN103863077A CN 103863077 A CN103863077 A CN 103863077A CN 201310693177 A CN201310693177 A CN 201310693177A CN 103863077 A CN103863077 A CN 103863077A
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CN
China
Prior art keywords
speed box
vehicle bridge
change
driving motors
chamber
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201310693177.XA
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Chinese (zh)
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CN103863077B (en
Inventor
S·莱纳
V·施赖伯
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Linde Material Handling GmbH
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Linde Material Handling GmbH
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Publication of CN103863077A publication Critical patent/CN103863077A/en
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Publication of CN103863077B publication Critical patent/CN103863077B/en
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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
    • 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
    • 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
    • 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
    • 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
    • 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 the problem to increase efficiency, e.g. by reducing splash losses
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

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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

The drive axle (1) has liquid cooling system for drive motor (3) for lubrication of gear box (5) in gear box housing (G). The drive motor is designed as a wet-running electric motor, such that drive motor and the transmission have a common closed oil circuit. The engine compartment (M) and transmission chamber (M) are located adjacent to one another in the axle housing (2) of the drive axle and are fluidly connected to each other through opening (30). The engine compartment and the gear housing are partially filled with lubricating oil.

Description

At least there is the driving vehicle bridge of an electric driving motors
Technical field
The present invention relates to a kind of driving vehicle bridge of mobile working machine, described mobile working machine is a ground conveying machine especially, described driving vehicle bridge at least has an electric driving motors and a change-speed box being driven by described driving motors, described change-speed box drives a wheel hub, wherein, described gearbox arrangement in the change-speed box chamber of the vehicle bridge housing of described driving vehicle bridge and described driving motors be arranged in motor chamber, and a Control device of liquid cooling is provided for described driving motors and in described change-speed box chamber, is provided with lubricating oil for the lubricated of described change-speed box.
Background technology
The driving vehicle bridge with one or more electric driving motors of vehicle is provided with the Control device of liquid cooling for driving motors more and more, to obtain higher power density.Be well known that, described driving motors is configured to the driving motors of dry running and has a cooling-gallery in the internal structure of rotor shaft for this reason, and this cooling-gallery is connected on cooling liquid loop and by cooling liquid percolation.Inner colded this class with the electric driving motors of dry running drives vehicle bridge known by DE103 18 022A1 and DE10 2,008 061 449A1.Alternatively be well known that: the rotor of driving motors can be immersed in cooling liquid, this cooling liquid is circulated and is changed by a cooling liquid loop.The required cooling liquid loop for circulating cooling liquid in known driving vehicle bridge still causes high structure consumes.The in the situation that of known driving vehicle bridge, need in addition: driving motors is arranged in gearbox arrangement that motor chamber wherein drives by driving motors relatively change-speed box chamber therein and seals.For this reason, in known driving vehicle bridge, described rotor shaft wheel outside, be arranged in bearing set between described driving motors and change-speed box and need a sealing arrangement that is embodied as bellows seal ring.In the case of the driving motors of dry running, also need the supporting member of grease lubrication in order to support described rotor shaft in described vehicle bridge housing.But, causing loss due to friction in conjunction with the lubricated supporting member of this quasi-grease of the bellows seal ring for relative motor chamber change-speed box chamber is sealed, its impact drives the efficiency of vehicle bridge.Another shortcoming of known driving vehicle bridge is: along with the inefficacy of bellows seal ring, for example bellows seal ring becomes blowing-by and produces and damaged by the supporting member of the supporting member of grease lubrication, occurs that thus corresponding maintenance expend.
Summary of the invention
The present invention is based on following task, that is, provide the driving vehicle bridge of the generic that beginning mentions, this driving vehicle bridge has little structure consumes and is being enhanced aspect loss due to friction and reliability.
This task solves in the following way according to the present invention: described driving motors is configured to the wet electro-motor turning round and described driving motors and described change-speed box and has public, a closed oil supply, wherein, described motor chamber and described change-speed box chamber are adjacent to each other and are arranged in the described vehicle bridge housing of described driving vehicle bridge and communicate with each other on fluid technique by means of at least one balance openings, wherein, described motor chamber and described change-speed box chamber are partially filled with lubricating oil.Driving motors and change-speed box for wet running in driving vehicle bridge according to the present invention are provided with a public oil supply, thereby described driving motors can be taken with cooling by the lubricating oil that existed, that exist in described driving vehicle bridge of described change-speed box.Described public oil supply is embodied as to closed oil supply and causes little structure consumes, this is because supply with for the closed oil in described driving vehicle bridge the cooling liquid loop not needing for circulating cooling liquid.Described motor chamber can expend realization with described change-speed box chamber in simple mode with very little additional structure by being communicated with on fluid technique of a balance openings: the public oil that is provided for driving motors and change-speed box is supplied with.Can obtain with being partially filled of motor chamber and change-speed box chamber the lubricating of enough cooling and described change-speed boxs of described driving motors by the lubricants capacity that expands, thereby make it possible to obtain the little churning loss (Planschverluste) that is immersed in the rotor in described lubricating oil in service in described driving vehicle bridge of described driving motors.
There is special advantage ground, between the described motor chamber of described driving motors and the described change-speed box chamber of described change-speed box, be furnished with according to an embodiment of the present invention a baffle wall, described baffle wall is provided with described at least one balance openings under the oil level of described lubricating oil.The balance openings of utilizing this class baffle wall and be arranged under described oil level to obtain on the one hand: described motor chamber and described change-speed box chamber are by the communicating with each other on fluid technique of described balance openings, supply with to form described public oil, and stop on the other hand: described lubricating oil during turning driving in a side, namely concentrate in described motor chamber or in described change-speed box chamber.Described baffle wall also can realize cooling and change-speed box lubricated of driving motors thus in the situation that of turning driving.
According to a favourable improvement project of the present invention, described driving motors has with described change-speed box and is in the rotor shaft that can rotate driving in being connected, described rotor shaft can support rotationally by means of a bearing set in the supporting shield being arranged between the motor chamber of described driving motors and the described change-speed box chamber of described change-speed box, wherein, the described bearing set of described rotor shaft nothing in described supporting shield is implemented hermetically.Having the described motor chamber of a public oil supply and the embodiment of described change-speed box chamber can realize: the bearing set of described rotor shaft in the described supporting shield between described motor chamber and described change-speed box chamber do not having by the sealing of a sealing arrangement, especially in the situation that there is no bellows seal ring, implement, and, in addition can realize: substitute and used one for described rotor shaft being bearing in to the supporting member of the moistening cunning of described vehicle bridge housing by the supporting member of grease lubrication, the supporting member of described moistening cunning carrys out lubrication and cooling by described lubricating oil.Can in driving vehicle bridge according to the present invention, obtain thus the minimizing of loss due to friction and obtain the high reliability with the described driving vehicle bridge that little maintenance expends by cancelling bellows seal ring.
Aspect little structure consumes, obtain advantage, if be configured to baffle wall according to supporting shield described in an improvement project of the present invention.
Have special advantage ground, described vehicle bridge housing is provided with on the outer surface cooling ribs in the region of described driving motors.Because described driving motors in order to obtain the compact size of described driving vehicle bridge and to set and radially directly packs into inside face place thus at the inwall of described vehicle bridge housing and described lubricating oil contacts with the inwall of described vehicle bridge housing, so can utilize the flank that adds of described vehicle bridge housing being formed by cooling ribs on described outside face to improve described cooling and preferably obtain the thermal output to surrounding environment not additional H Exch.
Aptly, according to an improvement project of the present invention, described change-speed box is provided with one for braking the brake equipment of described wheel hub, especially single piece type drg.Described brake equipment is arranged in described public oil supply thus equally, thereby described brake equipment can be taken with cooling in simple mode.
Have special advantage ground, according to an embodiment of the present invention, the cooling spilled oil lubricated spilled oil that is embodied as cooling and/or described change-speed box that is embodied as of described driving motors is lubricated.The spilled oil of described driving motors spilled oil cooling and described change-speed box is lubricated realizes the lubricating of enough cooling and described change-speed boxs of guaranteeing described driving motors can the low oil level in the described vehicle bridge housing being partially filled, thereby makes to be immersed in driving motors in described lubricating oil and the very little churning loss of described change-speed box with rotor in the acquisition in service of described driving vehicle bridge.
Accompanying drawing explanation
Other advantage of the present invention and details are explained in further detail by means of the embodiment showing in the diagram.
Figure 1 illustrates according to the longitdinal cross-section diagram of driving vehicle bridge 1 of the present invention, described driving vehicle bridge is used for driving a mobile working machine, a for example ground conveying machine.Show vehicle bridge half portion on the right with regard to the mid-plane E of described driving vehicle bridge 1.Vehicle bridge half portion on the left side has the structure of a mirror image.
The specific embodiment
Described driving vehicle bridge 1 comprises a tubular vehicle bridge housing 2, and this vehicle bridge housing crosses a motor chamber M with inwall, is furnished with an electric driving motors 3 in this motor chamber.Described driving motors 3 preferable configuration are asynchronous motor.The outer wall of described vehicle bridge housing 2 is provided with one and adds flank R in the region of described motor chamber M, and it forms corresponding cooling ribs.
End upper flange outside the wheel of described vehicle bridge housing 2 connects a case of transmission 4, and described case of transmission crosses a change-speed box chamber G with inwall, and the change-speed box 5 being driven by described driving motors 3 is arranged in this change-speed box chamber.
Described change-speed box 5 is embodied as secondary planet change-speed box in shown embodiment, and wherein, the rotor shaft 6 of described driving motors 3 drives and is connected with the sun wheel of the first planetary transmission level 7.The hollow wheels 8 of the first planetary transmission level is fixing with housing.During the planetary carrier that is provided with satellite gear 9 10 of described the first planetary transmission level and the sun wheel 11 of the second planetary transmission level are in and drive and be connected.Hollow wheels 12 and the housing of the second planetary transmission level are implemented regularly.The planetary carrier that is provided with satellite gear 13 14 of described the second planetary transmission level and wheel hub 15 are configured with the wheel rim 16 for receiving and fix driven wheel of described driving vehicle bridge 1 in being in and driving and be connected on this wheel hub 15.Described wheel hub 15 can be bearing in described case of transmission 4 rotationally by means of a bearing set being formed by antifriction-bearing box 17.Between wheel hub 16 and case of transmission 4, be furnished with a sealing arrangement 18, preferably a bellows seal ring in order to seal.
In described change-speed box chamber G, be furnished with in addition a brake equipment B, it is configured to chip drg.Described chip drg comprises multiple rotatable lamellas and the anti-sheet in relative rotation in alternately arranging, described rotatable lamella drives and is connected with the sun wheel 11 of described the second planetary transmission level, and described anti-sheet is in relative rotation supported on described case of transmission 4 in anti-relative rotation.Described brake equipment B is configured to the spring energy-storage drg of energy hydraulic unlock.In order to handle described brake equipment B, in described case of transmission 4, can vertically move and be furnished with a brake piston 20, this brake piston can be loaded in the braking position of described brake equipment B and can unclamp pressure by means of the braking existing in a control presssure chamber 22 being configured between brake casing 4 and brake piston 20 by means of a spring installation 21 and be loaded in the release position of brake equipment B.
Described driving motors 3 comprises the stator being arranged in vehicle bridge housing 2 and the rotor being connected with described rotor shaft 6.Described rotor shaft 6 is bearing in a supporting shield 26 by means of a supporting member being formed by antifriction-bearing box 25 on vehicle bridge inner side, and described supporting shield is formed on described vehicle bridge housing 3.On vehicle bridge outside, described rotor shaft 6 is bearing in a supporting shield 28 by means of a supporting member being formed by antifriction-bearing box 27, and described supporting shield is arranged between motor chamber M and change-speed box chamber G along the longitudinal direction that drives vehicle bridge 1 on described vehicle bridge housing 2.
Described driving motors 3, arrange concentrically with the vehicle bridge center line L of described driving vehicle bridge 1 with the change-speed box 5 of brake equipment 16 and wheel hub 15.
The in the situation that of driving vehicle bridge according to the present invention 1, described change-speed box 5 and described driving motors 3 are for lubricated described change-speed box 5 and have for driving motors described in liquid cooling 3 with a public closed oil of the lubricating oil of change-speed box 5 and supply with.For this reason, described driving motors 3 be embodied as the driving motors of wet running and described motor chamber M with directly adjacently the change-speed box chamber G of layout be in being communicated with on fluid technique by means of a balance openings 30.The in the situation that of driving vehicle bridge according to the present invention 1, the motor chamber M communicating with each other by described balance openings 30 and change-speed box chamber G are partially filled with definite amount of lubricating oil, wherein, oil level S is under described vehicle bridge center line L and as follows and measures, during, the rotor rotating around described vehicle bridge center line L in service driving vehicle bridge 1 of described driving motors 3 is immersed in lubricating oil and can realize bearing set 17 lubricated of described wheel hub 15.Described balance openings 30 is in the vertical lower area of described driving vehicle bridge 1 and thus under oil level S.
Concentrate in a side that is driving vehicle bridge 1 during turning driving in order to stop described lubricating oil, between motor chamber M and change-speed box chamber G, be furnished with a baffle wall 31 of arranging perpendicular to vehicle bridge center line L, this baffle wall is radially extended and is provided with the balance openings 30 being under oil level S to rotor shaft 6 by the inwall of vehicle bridge housing 1.The function with the baffle wall 31 of balance openings 30 can be born by described supporting shield 28.
The in the situation that of driving vehicle bridge according to the present invention 1, the bearing set in wheel outside of rotor shaft 5 in described supporting shield 28 be without implementing hermetically, thereby make not arrange sealing arrangement, for example bellows seal ring in the region of supporting member 27.
Supply with by described public closed oil, driving the in service of vehicle bridge 1, the spilled oil with lubricating oil that obtains electric driving motors 3 in the case of the rotor of driving motors 3 is cooling, and this spilled oil is cooling to be illustrated by arrow P 1.Obtain thus the effective cooling of driving motors 3.On change-speed box 5, driving vehicle bridge 1 in service, in the time that wheel hub 15 is driven by driving motors 3, appear at the brake equipment B that exists if desired and change-speed box 5 change-speed box member utilize lubricating oil to pass through the spilled oil shown in arrow P 2 cooling.Cooling for driving motors 3 and change-speed box 5, supplies with by the oil of described closure the independent cooling liquid loop that does not need therefrom to have circulation pump and cooling arrangement.
Described driving vehicle bridge 1 is in operation on fluid technique closed and only has and one insert opening 45 and outlet opening 46,47 in change-speed box chamber G and motor chamber M in order to change with make-up oil, and they seal by means of device for screwing up.
By without rotor shaft 6 being bearing in described supporting shield 28 hermetically, reduce the loss due to friction in the generation in service of driving vehicle bridge owing to cancelling for example bellows seal ring of sealing arrangement.In addition, for being embodied as supporting member simple construction, moistening cunning at the supporting member 27 of supporting shield 28 supporting rotor axles 5 and not needing grease-filled for lubrication and cooling.Reduce the loss due to friction of generation and structure consumes and improved according to the reliability of driving vehicle bridge 1 of the present invention by the simple structure of the cancellation of the sealing arrangement for rotor shaft 6 and the supporting member of moistening cunning 28.

Claims (7)

1. the driving vehicle bridge (1) of mobile working machine, described mobile working machine is a ground conveying machine especially, described driving vehicle bridge at least has the change-speed box (5) that an electric driving motors (3) and is driven by described driving motors (3), described change-speed box drives a wheel hub (15), wherein, described change-speed box (5) is arranged in the change-speed box chamber (G) of vehicle bridge housing (2) of described driving vehicle bridge (1) and described driving motors (3) is arranged in motor chamber (M), and a Control device of liquid cooling is provided for described driving motors (3) and in described change-speed box chamber (G), is provided with lubricating oil for the lubricated of described change-speed box (5), it is characterized in that, described driving motors (3) is configured to the electro-motor of wet running and described driving motors (3) and described change-speed box (5) and has one public, closed oil is supplied with, wherein, described motor chamber (M) and described change-speed box chamber (G) are adjacent to each other and are arranged in the described vehicle bridge housing (2) of described driving vehicle bridge (1) and communicate with each other on fluid technique by means of at least one balance openings (30), wherein, described motor chamber (M) and described change-speed box chamber (G) are partially filled with lubricating oil.
2. driving vehicle bridge according to claim 1, it is characterized in that, between the described motor chamber (M) of described driving motors (3) and the described change-speed box chamber (G) of described change-speed box (5), be furnished with a baffle wall (31), described baffle wall is provided with described at least one balance openings (30) under the oil level (S) of described lubricating oil.
3. driving vehicle bridge according to claim 1 and 2, it is characterized in that, described driving motors (3) has with described change-speed box (5) and is in the rotor shaft (6) that can rotate driving in being connected, described rotor shaft can support rotationally by means of a bearing set (27) in a supporting shield (28) being arranged between the described motor chamber (M) of described driving motors (3) and the described change-speed box chamber (G) of described change-speed box (5), wherein, the described bearing set (27) of described rotor shaft (6) nothing in described supporting shield (28) is implemented hermetically.
4. driving vehicle bridge according to claim 3, is characterized in that, described supporting shield (28) is configured to baffle wall (31).
5. according to the driving vehicle bridge one of claim 1 to 4 Suo Shu, it is characterized in that, described vehicle bridge housing (2) is provided with on the outer surface cooling ribs (R) in the region of described driving motors (3).
6. according to the driving vehicle bridge one of claim 1 to 5 Suo Shu, it is characterized in that, described change-speed box (5) is provided with one for braking brake equipment (B), especially the single piece type drg of described wheel hub (15).
7. according to the driving vehicle bridge one of claim 1 to 6 Suo Shu, it is characterized in that, the cooling lubricated spilled oil that is embodied as that is embodied as the cooling and/or described change-speed box of spilled oil (5) of described driving motors (3) is lubricated.
CN201310693177.XA 2012-12-17 2013-12-17 Driving vehicle bridge at least with an electric driving motors Active CN103863077B (en)

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