CN103863077B - Driving vehicle bridge at least with an electric driving motors - Google Patents

Driving vehicle bridge at least with an electric driving motors Download PDF

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Publication number
CN103863077B
CN103863077B CN201310693177.XA CN201310693177A CN103863077B CN 103863077 B CN103863077 B CN 103863077B CN 201310693177 A CN201310693177 A CN 201310693177A CN 103863077 B CN103863077 B CN 103863077B
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CN
China
Prior art keywords
speed changer
vehicle bridge
driving motors
driving
room
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Active
Application number
CN201310693177.XA
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Chinese (zh)
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CN103863077A (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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Classifications

    • 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 present invention relates to the driving vehicle bridge of mobile working machine（1）, driving vehicle bridge is at least with an electric driving motors（3）With one by driving motors（3）The speed changer driven（5）, speed changer drive hub（15）, wherein speed changer（5）It is arranged in driving vehicle bridge（1）Vehicle bridge shell（2）Speed changer room（G）In and driving motors（3）It is arranged in motor chamber（M）In, and Control device of liquid cooling setting is used for driving motors（3）And for speed changer（5）And it is provided with lubricating oil.Driving motors（3）It is configured to the electro-motor and driving motors of wet operating（3）And speed changer（5）With oil supply that is public, being closed, wherein motor chamber（M）With speed changer room（G）It is arranged in driving vehicle bridge（1）Vehicle bridge shell（2）In and by means of at least one balance openings（30）It communicates with each other on fluid technique, wherein motor chamber（M）With speed changer room（G）It is partially filled with lubricating oil.

Description

Driving vehicle bridge at least with an electric driving motors
Technical field
The present invention relates to a kind of driving vehicle bridge of mobile working machine, a mobile working machine especially floor conveyors Tool, the speed changer that the driving vehicle bridge is at least driven with an electric driving motors and one by the driving motors, the speed changer Drive a wheel hub, wherein the speed changer is arranged in the speed changer room of the vehicle bridge shell of the driving vehicle bridge and the row Motor arrangement is sailed in motor chamber, and Control device of liquid cooling setting is for the driving motors and for the speed changer Lubrication and be provided with lubricating oil in the speed changer room.
Background technology
The driving vehicle bridge with one or more electric driving motors of vehicle is equipped with more and more for driving motors Control device of liquid cooling, to obtain higher power density.It is well known that thus, the driving motors are configured to dry operating Driving motors and have a cooling duct in the internal structure of armature spindle, the cooling duct be connected on cooling fluid loop and It is flowed by cooling liquid.This kind of driving vehicle bridge of the inside cooling of electric driving motors with dry operating is by 18 022A1 of DE103 Known in 2,008 061 449A1 of DE10.Alternatively and it is known that：The rotor of driving motors can be immersed in cooling liquid In, which is recycled and is replaced by a cooling fluid loop.It is used for circulating cooling liquid in well known driving vehicle bridge The required cooling fluid loop of body still leads to high structure consumption.It is needed in addition in the case of well known driving vehicle bridge： The opposite speed changer room being arranged therein by the speed changer that driving motors are driven of motor chamber that driving motors are arranged therein is close Envelope.For this purpose, in well known driving vehicle bridge, in the armature spindle on the outside of wheel, be arranged in the driving motors and speed change Supporting arrangement between device needs a sealing device for being embodied as bellows seal ring.In the case of the driving motors of dry operating also The supporting member of grease lubrication is needed to support the armature spindle in the vehicle bridge shell.But in conjunction with for by motor Room causes friction loss with respect to the supporting member of this kind of grease lubrication for the bellows seal ring that speed changer room seals, and influences driving vehicle The efficiency of bridge.The further drawback of well known driving vehicle bridge is：As the failure of bellows seal ring, such as bellows seal ring become Blow-by and generate by the supporting member damage of the supporting member of grease lubrication, thus there is corresponding safeguard and expend.
Invention content
The present invention is based on following tasks, that is, provides the driving vehicle bridge of generic mentioned in the beginning, which has small Structure consumption and be enhanced in terms of friction loss and reliability.
The task solves in the following way according to the present invention：The driving motors are configured to the electro-motor of wet operating And the driving motors and the speed changer have oil supply that is one public, being closed, wherein the motor chamber and described Speed changer room is disposed adjacent to one another in the vehicle bridge shell of the driving vehicle bridge and is opened by means of at least one balance Mouth communicates with each other on fluid technique, wherein the motor chamber and the speed changer room are filled with lubricating oil portion.According to this It is that the driving motors of wet operating and speed changer are provided with a public oil supply in the driving vehicle bridge of invention, so that the row Same cooling can be taken by the lubricating oil already existing, present in the driving vehicle bridge of the speed changer by sailing motor.It will The oil supply that the public oil supply is embodied as being closed leads to seldom structure consumption, this is because in the driving vehicle The oil supply of closure in bridge need not be used for the cooling fluid loop of circulating cooling liquid.The motor chamber and the speed changer Room can be expended real by the connection on fluid technique of a balance openings in a simple manner and with the additional structure of very little It is existing：Public oil supply for driving motors and speed changer is provided.It can be with motor chamber and speed change by widened lubricants capacity Device room is partially filled with the enough cooling and speed changer the lubrications for obtaining the driving motors, is enable to obtain institute State the small churning loss for the rotor of driving motors being immersed in the operation of the driving vehicle bridge in the lubricating oil （Planschverluste）.
Have the advantages that specially, according to an embodiment of the present invention and in the motor chamber of the driving motors and institute It states and is disposed with a baffle wall between the speed changer room of speed changer, the baffle wall has in the oil level of the lubricating oil At least one balance openings.It is on the one hand obtained using this kind of baffle wall and the balance openings being arranged under the oil level ：The motor chamber and the speed changer room are by the communicating with each other on fluid technique of the balance openings, to be formed The public oil supply, and on the other hand prevent：The lubricating oil is during turning driving on side, namely in institute It states in motor chamber or is concentrated in the speed changer room.Thus the baffle wall can also realize row in the case of turning driving Sail the cooling of motor and the lubrication of speed changer.
According to the present invention one is advantageously improved scheme, and the driving motors have is in drive connection with the speed changer In the armature spindle that can be rotated, the armature spindle is in the motor chamber for being arranged in the driving motors and the change of the speed changer It can rotationally be supported by means of a supporting arrangement in bearing shield between fast device room, wherein the branch of the armature spindle installs The nothing in the bearing shield is set hermetically to implement.The implementation of the motor chamber and the speed changer room with a public oil supply Scheme can be realized：Supporting arrangement in the bearing shield of the armature spindle between the motor chamber and the speed changer room Not over the sealing of a sealing device, especially implement in the case of no bellows seal ring, also, this It can realize outside：It substitutes by the supporting member of grease lubrication and using one for the rotor to be pivotally supported in the vehicle bridge shell The sliding supporting member of moistening, the sliding supporting member of the moistening lubricates by the lubricating oil and cooled down.Thus, it is possible to according to this The reduction of friction loss is obtained in the driving vehicle bridge of invention and by cancelling the acquisition of bellows seal ring there is small maintenance to expend The high reliability of the driving vehicle bridge.
Advantage is obtained in terms of small structure consumption, is configured to if supporting shield described in an improvement project according to the present invention If baffle wall.
Have the advantages that specially, the vehicle bridge shell is equipped with cooling on the outer surface in the region of the driving motors Rib.Because the driving motors in order to obtain it is described driving vehicle bridge compact dimensioning setting and directly along the radial direction described It is packed at the inner wall of vehicle bridge shell and thus inner surface and the lubricating oil is contacted with the inner wall of the vehicle bridge shell, so can To utilize the vehicle bridge shell being formed by ribbing portion by cooling ribs and improve the cooling and excellent on the outer surface Selection of land obtains the thermal output to ambient enviroment with not having additional heat exchanger.
Expediently, an improvement project according to the present invention, the speed changer is equipped with a braking for braking the wheel hub Device, especially single piece type brake.Thus the brake apparatus is equally arranged in the public oil supply, so that The brake apparatus can take same cooling in a simple manner.
Have the advantages that specially, according to an embodiment of the present invention, it is cold that the coolings of the driving motors is embodied as spilled oil But and/or the lubrication of the speed changer is embodied as splash.The spilled oil cooling of the driving motors and splashing for the speed changer Oil lubrication can be realized in the case of the low oil level in the vehicle bridge shell being partially filled ensures the driving motors Cooling enough and the speed changer lubrication so that obtained in the operation of the driving vehicle bridge be immersed in rotor it is described The churning loss of the very little of driving motors and the speed changer in lubricating oil.
Description of the drawings
The further advantage and details of the present invention is illustrated in further detail by means of the embodiment shown in the diagram.
The longitdinal cross-section diagram of driving vehicle bridge 1 according to the present invention is shown in FIG. 1, the driving vehicle bridge is for driving one Mobile working machine, such as a ground conveying machine.Show the vehicle bridge on the right for the mid-plane E of the driving vehicle bridge 1 Half portion.The vehicle bridge half portion on the left side has the structure of a mirror image.
Specific implementation mode
The driving vehicle bridge 1 includes a tubular vehicle bridge shell 2, and wall crosses a motor chamber M within the vehicle bridge shell, at this An electric driving motors 3 are disposed in motor chamber.The driving motors 3 are preferably configured as asynchronous motor.The vehicle bridge shell 2 Outer wall is equipped with a ribbing portion R in the region of the motor chamber M, forms corresponding cooling ribs.
End upper flange on the outside of the wheel of the vehicle bridge shell 2 connects a case of transmission 4, the case of transmission with Inner wall crosses a speed changer room G, and the speed changer 5 driven by the driving motors 3 is arranged in the speed changer room.
The speed changer 5 is embodied as secondary planet speed changer in the embodiment illustrated, wherein the driving motors 3 Armature spindle 6 and the first planetary transmission grade sun gear 7 be drivingly connected.The hollow wheel 8 of first planetary transmission grade is and shell Body is fixed.The planetary carrier 10 equipped with planetary gear 9 of the first planetary transmission grade and the second planetary transmission grade Sun gear 11 is in drive connection.The hollow wheel 12 of second planetary transmission grade is fixedly implemented with shell.Described The planetary carrier 14 equipped with planetary gear 13 of two planetary transmission grades is in wheel hub 15 in drive connection, on the wheel hub 15 It is configured with the wheel rim 16 of the driven wheel for receiving and fixing the driving vehicle bridge 1.The wheel hub 15 by means of one by Rolling bearing is formed by supporting arrangement 17 and can be rotatably supported in the case of transmission 4.In order to seal and in wheel hub A sealing device 18, preferably a bellows seal ring are disposed between 16 and case of transmission 4.
It is disposed with a brake apparatus B in addition in the speed changer room G, is configured to piece-type brake.The chip system Dynamic device includes the piece of multiple rotatable lamellas and the anti-relative rotation in being alternately arranged, the rotatable lamella and second planet speed-change The sun gear 11 of device grade is drivingly connected, and the piece of the anti-relative rotation is supported in anti-relative rotation on the case of transmission 4. The brake apparatus B is configured to the spring energy-storage brake of hydraulic unlock.In order to manipulate the brake apparatus B, in the change It is disposed with a brake piston 20 with capable of being vertically moved in fast device shell 4, which can be added by means of a spring assembly 21 Be downloaded in the application position of the brake apparatus B and can by means of one construction in brake casing 4 and brake piston 20 Between control pressure room 22 present in braking unclamp pressure be loaded into the released position of brake apparatus B.
The driving motors 3 include the stator being arranged in vehicle bridge shell 2 and the rotor being connect with the armature spindle 6.Institute State armature spindle 6 on the inside of the vehicle bridge on supporting member 25 be formed by by rolling bearing by means of one be supported in a bearing shield 26, institute Bearing shield is stated to be formed on the vehicle bridge shell 3.On on the outside of the vehicle bridge, the armature spindle 6 is by means of one by rolling bearing institute shape At supporting member 27 be supported in a bearing shield 28, it is described bearing shield 2 upper edge of vehicle bridge shell drive vehicle bridge 1 longitudinal direction side To being arranged between motor chamber M and speed changer room G.
In the vehicle bridge of the driving motors 3, the speed changer 5 with brake apparatus 16 and wheel hub 15 and the driving vehicle bridge 1 Line L is concentrically arranged.
In the case of driving vehicle bridge 1 according to the present invention, the speed changer 5 and the driving motors 3 are in order to lubricate State speed changer 5 and in order to which liquid cools down the driving motors 3 and has with the oil of the one of the lubricating oil of speed changer 5 public closure Supply.For this purpose, the driving motors 3 are embodied as the driving motors of wet operating and the motor chamber M with abutting directly against is arranged Speed changer room G be in the connection on fluid technique by means of a balance openings 30.In driving vehicle bridge 1 according to the present invention In the case of, the motor chamber M and speed changer room G that are communicated with each other by the balance openings 30 are with the amount of the determination of lubricating oil come part Filling, wherein oil level S is under the vehicle bridge center line L and measures as follows, that is, the driving motors 3 are driving Rotor in the operation of motor-car bridge 1 around vehicle bridge center line L rotations is immersed in lubricating oil and the wheel hub 15 may be implemented Supporting arrangement 17 lubrication.The balance openings 30 are in the vertical lower area of the driving vehicle bridge 1 and thus exist Under oil level S.
In order to prevent the lubricating oil during turning driving driving vehicle bridge 1 side on concentrate, in motor chamber M and change A baffle wall 31 perpendicular to vehicle bridge center line L arrangements is disposed between fast device room G, the baffle wall is radially by vehicle bridge shell 1 inner wall extends to armature spindle 6 and equipped with the balance openings 30 being under oil level S.Baffle wall with balance openings 30 31 function can be undertaken by the bearing shield 28.
In the case of driving vehicle bridge 1 according to the present invention, branch wheel on the outside of of the armature spindle 5 in the bearing shield 28 Bearing apparatus is without hermetically implementing, so that without arrangement sealing device, such as bellows seal ring in the region of supporting member 27.
By the oil supply of the public closure, in the operation of driving vehicle bridge 1, rotated in the rotor of driving motors 3 In the case of obtain the spilled oils with lubricating oil of electric driving motors 3 and cool down, spilled oil cooling is shown by arrow P1.Thus it obtains Obtain effective cooling of driving motors 3.On speed changer 5, in the operation of driving vehicle bridge 1, driven by driving motors 3 in wheel hub 15 When there is showing by arrow P2 using lubricating oil for variator components of existing brake apparatus B and speed changer 5 if necessary The spilled oil cooling gone out.Cooling for driving motors 3 and speed changer 5 need not have therefrom by the oil supply of the closure There is the individual cooling fluid loop of circulating pump and cooling arrangement.
The driving vehicle bridge 1 is closed on fluid technique and only has with make-up oil to replace in operation A filling opening 45 in speed changer room G and motor chamber M and outlet opening 46,47, they are closed by means of device for screwing up.
Hermetically armature spindle 6 is supported in the bearing shield 28 by nothing, it is close due to cancelling sealing device such as waveform Seal ring and reduce the friction loss that generates in the operation of driving vehicle bridge.In addition, for the support of rotor shaft 5 in supporting shield 28 Supporting member 27 can be implemented as simple construction, supporting member that moistening is sliding and the grease that need not be used to lubricate and cool down fill out It fills.Rubbing for generation is reduced by the simple structure of the supporting member 28 of the cancellation and moistening cunning of the sealing device for armature spindle 6 It wears and becomes estranged structure consumption and improve the reliability according to the present invention for driving vehicle bridge 1.

Claims (6)

1. the driving vehicle bridge (1) of mobile working machine, the driving vehicle bridge at least has an electric driving motors (3) and one by the row The speed changer (5) that motor (3) is driven is sailed, the speed changer drives a wheel hub (15), wherein the speed changer (5) is arranged in In the speed changer room (G) of the vehicle bridge shell (2) of the driving vehicle bridge (1) and the driving motors (3) are arranged in motor chamber (M) In, and a Control device of liquid cooling setting for the driving motors (3) and in order to the speed changer (5) lubrication and in institute It states in speed changer room (G) and is provided with lubricating oil, wherein the driving motors (3) are configured to electro-motor and the institute of wet operating Stating driving motors (3) and the speed changer (5) has oil supply that is one public, being closed, wherein the motor chamber (M) and The speed changer room (G) is disposed adjacent to one another in the vehicle bridge shell (2) of the driving vehicle bridge (1) and by means of extremely A few balance openings (30) communicates with each other on fluid technique, wherein the motor chamber (M) and the speed changer room (G) with Lubricating oil is partially filled with, wherein it is one to be equipped with a construction for braking the wheel hub (15) in the speed changer room (G) The brake apparatus (B) of piece-type brake, wherein the brake apparatus (B) is arranged in the speed changer room (G) and in the electricity In the public oil supply of driving motors (3) and speed changer (5), wherein to be embodied as spilled oil cold for the cooling of the driving motors (3) But and/or the lubrication of the speed changer (5) is embodied as splash, wherein for the driving motors (3) and speed changer (5) It is cooling, there need not be the individual cooling fluid loop of circulating pump and cooling arrangement therefrom by the oil supply of closure.
2. driving vehicle bridge according to claim 1, which is characterized in that in the motor chamber (M) of the driving motors (3) It is disposed with a baffle wall (31) between the speed changer room (G) of the speed changer (5), the baffle wall is in the lubricating oil Oil level (S) have at least one balance openings (30).
3. driving vehicle bridge according to claim 1 or 2, which is characterized in that the driving motors (3) have and the speed change Device (5) is in the armature spindle (6) that can be rotated in being drivingly connected, and the armature spindle is arranged in the driving motors (3) one It is installed by means of one in bearing shield (28) between the motor chamber (M) and the speed changer room (G) of the speed changer (5) Setting (27) can rotationally support, wherein the supporting arrangement (27) of the armature spindle (6) is in the bearing shield (28) without close Implement in feud.
4. driving vehicle bridge according to claim 3, which is characterized in that the bearing shield (28) is configured to baffle wall (31).
5. driving vehicle bridge according to claim 1 or 2, which is characterized in that the vehicle bridge shell (2) is in the driving motors (3) cooling ribs (R) are equipped in region on the outer surface.
6. driving vehicle bridge according to claim 1 or 2, which is characterized in that the mobile working machine is a floor conveyor Tool.
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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