CN108327529A - The rear electric drive assembly of hybrid vehicle - Google Patents
The rear electric drive assembly of hybrid vehicle Download PDFInfo
- Publication number
- CN108327529A CN108327529A CN201810279484.6A CN201810279484A CN108327529A CN 108327529 A CN108327529 A CN 108327529A CN 201810279484 A CN201810279484 A CN 201810279484A CN 108327529 A CN108327529 A CN 108327529A
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- China
- Prior art keywords
- gear
- differential
- axial
- gear ring
- planet carrier
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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
- B60K17/12—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of electric gearing
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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
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
- B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears 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
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
A kind of rear electric drive assembly the present invention relates to hybrid vehicle includes driving motor and speed reducer assembly,Speed reducer assembly includes the differential assembly being mounted in reduction-gear housing body,Differential mechanism left shell and right differential housing are respectively equipped with the extension set pipeline section passed through for semiaxis,Extension set pipeline section is supported on by bearing on reduction case,A final gear is connected firmly on differential casing,The final gear receives the torque exported from driving motor,Differential casing internal clearance is with the rotatable planet carrier of unification,End-tooth is arranged in one axial end face of planet carrier,It is nested with one in differential casing and is axially movable gear ring,It is corresponding with the end-tooth of planet carrier that the end-tooth of gear ring is set to an axial end face,Multiple axially mounted columns are arranged in another axial end of gear ring,These axially mounted columns stretch out one signal panels of differential mount,Return spring is set between signal panels and differential casing,Setting one is used for the driving device of drive signal disk axial displacement on retarder.
Description
Technical field
The present invention relates to a kind of automobile drive axles, and in particular to a kind of rear electric drive assembly of hybrid vehicle.
Background technology
Increasingly sharpen with the increasingly in short supply and environmental pollution of oil supply, people increasingly focus on new energy vapour
Vehicle.Wherein hybrid vehicle has fuel-economizing apparent, the limitation of no course continuation mileage, can pure electricity traveling, the advantages that good dynamic property, in addition
Technology is ripe day by day, has become mainstream in the market, and still, since hybrid vehicle front deck space is limited, motor is put
Setting can cause vehicle change big in front deck, and cost increases, and the development cycle is long；And motor is arranged in engine front deck, motor
Output power have to pass through transmission mechanism and get to trailing wheel, cause power attenuation serious into transmission mechanism is crossed.Conventional is mixed
Power vehicle is closed, when need to only carry out internal combustion engine driving, the drive mechanism of vehicle can be dragged to be not involved in the motor of power output counter,
Cause electric drive assembly to stir the energy losses such as oil and friction, to waste the power of a part of internal combustion engine output, causes
The problem that motor speed exceeds the speed limit and car speed is limited.
Invention content
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of rear electric drive assembly of hybrid vehicle,
It can facilitate the vehicle fore cabin space layout of hybrid vehicle, can also be convenient for the transmission and disconnection of control driving motor power,
Prevent driving motor from being dragged by counter, moreover it is possible to vehicle efficiency is improved, it is energy saving.
The object of the present invention is achieved like this：A kind of rear electric drive assembly of hybrid vehicle, including driving motor
And speed reducer assembly, the speed reducer assembly include the differential assembly being mounted in reduction-gear housing body, the differential assembly
Differential casing be connected and fixed in opposite directions by differential mechanism left shell and right differential housing and form body structure, the differential mechanism is left
Shell and right differential housing are respectively equipped with the extension set pipeline section passed through for semiaxis, and extension set pipeline section is supported on deceleration by bearing
On device babinet, a final gear is connected firmly on the differential casing, final gear receiving is exported from driving motor
Torque, the differential casing internal clearance support a planetary gear shaft with rotatable planet carrier is unified in the planet carrier,
The symmetrically arranged planetary gear of empty set is distinguished in the planetary gear shaft, is respectively supported in differential mechanism left shell and differential right casing body
The axial end face setting of one axle shaft gear engaged with planetary gear, the planet carrier is distributed along planet carrier annular end face
End-tooth is nested with one in the differential casing and is axially movable gear ring, and the end-tooth of the gear ring is set to an axial end
Face is corresponding with the end-tooth of planet carrier, and multiple axially mounted columns are arranged in another axial end of the gear ring, and gear ring passes through more
A axially mounted column cooperatively forms circumferentially positioned, these axially mounted columns stretchings with the via being correspondingly arranged on differential casing
Differential mechanism supports a signal panels jointly, and return spring is arranged between the signal panels and differential casing, is set on the retarder
A driving device for drive signal disk axial displacement is set, cutting somebody's hair for the driving device can act axially on signal panels outer end face
On, gear ring can be driven to do the axial movement relative to differential casing by signal panels, be arranged for sentencing in the retarder
The position sensor of the axial position of break signal disk, the position sensor and axial drive means respectively with electronic control system
Electrical connection.
The differential mechanism left shell is in hat shape, and the differential mechanism left shell left end setting is raised in the extension set of end face center
Pipeline section, the differential mechanism left shell right end edge are connected and fixed with right differential housing, and differential mechanism left shell left side is set
Centered on setting multiple left shell axial lines by differential mechanism and respectively 360 ° of via.
The gear ring include one engagement gear ring, it is described engagement gear ring lower face setting for planet carrier end joined
End-tooth, multiple centered on engaging gear ring axial line and respectively 360 ° of axial peaces are arranged in the upper surface of the engagement gear ring
Column is filled, it is solid that the outer cylinder of the axially mounted column is respectively provided with the installation shaft shoulder, circumferential registration curved surface and retainer ring for installing signal panels
Determine groove；The signal panels are nested on the positioning cylinder that the circumferential registration curved surface in each axially mounted column is collectively formed and pass through card
Circle and the installation shaft shoulder carry out axial limiting.
Slow down between the driving motor and differential mechanism mechanism, the torque of the driving motor output is subtracted by deceleration mechanism
Final gear is passed to after fast torque.
The deceleration mechanism is two reduction gear, and the deceleration mechanism includes intermediate shaft assembly, the intermediate shaft assembly
Including jackshaft, jackshaft left bearing and jackshaft right bearing, a countershaft-gear, two level driving tooth are connected firmly on the jackshaft
Wheel, the jackshaft both ends are supported on by jackshaft left bearing and jackshaft right bearing on reduction case respectively, in described
Between shaft gear engaged with output gear, the two level driving gear is engaged with final gear.
The return spring being arranged between the signal panels and differential casing end face be to top waveform spring, butterfly spring or
Person's helical spring.
The driving device is line motor, cylinder or hydraulic cylinder.
The planetary gear shaft is cross planetary gear shaft, and distinguishing empty set on the shaft of the planetary gear shaft is symmetrical arranged
Planetary gear.
Centered on signal panels axial line and respectively 360 ° of the driving device of setting at least three on the retarder.
The driving motor is permanent magnet synchronous motor or AC induction motor.
Using the above scheme, the speed reducer assembly includes the differential assembly being mounted in reduction-gear housing body, the difference
The differential casing of fast device assembly is connected and fixed by differential mechanism left shell and right differential housing and forms body structure in opposite directions, described
Differential mechanism left shell and right differential housing are respectively equipped with the extension set pipeline section passed through for semiaxis, and extension set pipeline section passes through bearing branch
It holds on reduction case, a final gear is connected firmly on the differential casing, which receives from driving electricity
The torque of machine output, the differential casing internal clearance support a row with rotatable planet carrier is unified in the planet carrier
Star gear shaft, the symmetrically arranged planetary gear of empty set, differential mechanism left shell and differential right casing respectively in the planetary gear shaft
Respectively one axle shaft gear engaged with planetary gear of bearing, the axial end face setting of the planet carrier are annular along planet carrier in vivo
The end-tooth of end face distribution, is nested with one in the differential casing and is axially movable gear ring, the end-tooth of the gear ring is set
Corresponding with the end-tooth of planet carrier in an axial end face, multiple axially mounted columns, tooth is arranged in another axial end of the gear ring
Torus cooperatively forms circumferentially positioned, these axial directions by multiple axially mounted columns and the via being correspondingly arranged on differential casing
Mounting post stretches out differential mechanism one signal panels of bearing jointly, and return spring is arranged between the signal panels and differential casing, described
Setting one is used for the driving device of drive signal disk axial displacement on retarder, and cutting somebody's hair for the driving device can act axially on letter
On dialer outer end face, gear ring can be driven to do the axial movement relative to differential casing by signal panels, in the retarder
The position sensor of axial position for judging signal panels is set, the position sensor and axial drive means respectively with electricity
Sub-control system is electrically connected.The differential mechanism left shell and right differential housing are respectively equipped with the stretched sheathed tube passed through for semiaxis
Section is, it can be achieved that differential casing is supported on by bearing on reduction case.The differential casing internal clearance can with unification
The planet carrier of rotation, the planet carrier is interior to support a planetary gear shaft, and distinguishing empty set in the planetary gear shaft is symmetrical arranged
Planetary gear, respectively support an axle shaft gear engaged with planetary gear in differential mechanism left shell and differential right casing body, two
Axle shaft gear is realized distributes to two trailing wheels by power, while two-semiaxle gear mesh planet carrier realizes limit.The differential casing
On connect firmly a final gear, which receives the torque that export from driving motor, realization deceleration torque.The difference
Be nested with one in fast device shell and be axially movable gear ring, gear ring by multiple axially mounted columns with it is corresponding on differential casing
The via of setting cooperatively forms circumferentially positioned, the engagement of gear ring upper surface tooth and planet carrier upper surface or is detached to realize
The engagement or disengaging with planet carrier of differential casing, to realize differential casing and planet carrier torque transmit engagement
And interruption.Axially mounted column stretches out differential mechanism one signal panels of bearing jointly, and the setting of the signal panels is convenient for applying axis to signal panels
To thrust, the device for applying thrust is located at outside differential casing, is conducive to the arrangement in differential mechanism casing structure and space.If
Setting return spring makes signal be in outermost end, ensures when not exerting a force to signal panels, the torque of differential casing and planet carrier
It transmits and interrupts, planet carrier is made counter will not to drag differential casing.Axial position for judging signal panels is set in the retarder
Position sensor, the position sensor is electrically connected with electronic control system respectively with axial drive means, position sensor
For the collection and transmission of signal, axial drive means are used to execute the order of the thrust output of electronic control system.Work as vehicle
When climbing or acceleration, when driving motor being needed to participate in vehicle traction, the electronic control system of vehicle carries out axial drive means
Control, cutting somebody's hair can release.Cutting somebody's hair at this time can be in contact with signal panels and generate thrust to signal panels, in the work of this thrust
Under, signal panels can overcome the elastic force of return spring, and axially move, and then drive gear ring movement, work as gear ring
After moving a certain distance, the end-tooth of gear ring end face can be engaged with the end face tooth structure of planet carrier end face, at this time gear ring
Realize that torque transmits between planet carrier.Driving motor works at this time, and the power from driving motor can be transmitted to master and subtracted
Fast gear, and then power is transmitted to gear ring by differential casing, and planet carrier is driven by end face tooth structure, then transmit
To planetary gear set, to be transmitted to jackshaft and wheel, realize that the driving to vehicle, i.e. electric drive assembly can participate in vehicle
Driving and the operating modes such as energy regenerating.When not needing driving motor participation power output or ability recycles, driving motor
With axial drive means unpowered output.Axial drive means cut somebody's hair place with non-release state, due to signal panels by from
The elastic force of return spring acts on, i.e., axial drive means are located at outermost end, the end face of gear ring and planet carrier end face with signal panels
Tooth is effect powerless between discrete state, i.e. gear ring and planet carrier.Since the differential casing internal clearance can with unification
The planet carrier of rotation, therefore planet carrier can freely rotate movement inside differential casing.At this point, planet carrier and tooth
The movement of torus is unaffected mutually, counter will not drag gear ring, at this time the dynamical system of vehicle front-wheel can individually to vehicle into
Row driving；Driving motor, input shaft assembly and the differential mechanism left shell in differential assembly, right differential housing, main deceleration
Gear, gear ring, signal panels etc. are in stationary state, will not rotate with wheel, will not stir oil and friction etc.
Energy loss, to reach certain energy saving purpose.Using the present invention, the control of driving motor and driving motor and transmission mechanism
The rear wheel decelerator being arranged at outside vehicle fore cabin is nearby convenient for hybrid vehicle front deck space layout；It also avoids being driven
The serious problem of power attenuation caused by mechanism.
The gear ring include one engagement gear ring, it is described engagement gear ring lower face setting for planet carrier end joined
End-tooth, multiple centered on engaging gear ring axial line and respectively 360 ° of axial peaces are arranged in the upper surface of the engagement gear ring
Column is filled, it is solid that the outer cylinder of the axially mounted column is respectively provided with the installation shaft shoulder, circumferential registration curved surface and retainer ring for installing signal panels
Determine groove；The signal panels are nested on the positioning cylinder that the circumferential registration curved surface in each axially mounted column is collectively formed and pass through card
Circle and the installation shaft shoulder carry out axial limiting, can be removably connected and fixed with gear ring convenient for signal panels using this structure,
It is safeguarded convenient for assembly or disassembly.
Deceleration mechanism is set between the driving motor and differential mechanism, and the torque of the driving motor output passes through speed reducer
Final gear is passed to after structure deceleration torque, setting deceleration mechanism can either carry out deceleration torque, and can ensure driving electricity
Machine is in high efficiency range operational proof driving motor efficiency.
The deceleration mechanism is two reduction gear, and the deceleration mechanism includes intermediate shaft assembly, the intermediate shaft assembly
Including jackshaft, jackshaft left bearing and jackshaft right bearing, a countershaft-gear, two level driving tooth are connected firmly on the jackshaft
Wheel, the jackshaft both ends are supported on by jackshaft left bearing and jackshaft right bearing on reduction case respectively, in described
Between shaft gear engaged with output gear, the two level driving gear is engaged with final gear, driving motor output power warp
The gear pair for crossing output gear and countershaft-gear composition realizes that primary deceleration torque, power pass through two level active by jackshaft
The secondary gear pair with final gear composition realizes secondary speed-reducing torque.
The return spring being arranged between the signal panels and differential casing end face be to top waveform spring, butterfly spring or
Person's helical spring, to pushing up waveform spring installation space very little, having reduces noise, reduces vibration performance；Butterfly spring has row
Journey is short, load weight, and required space is small, is applied in combination conveniently, and repair changes the outfit easy, economic, safe, spy with long service life
Property；There is helical spring manufacture to be easier, and structure is compact, the high characteristic of energy interest rate.
The driving device is line motor, cylinder or hydraulic cylinder, and line motor is a kind of to be directly changed into electric energy
Move along a straight line mechanical energy, without the transmission device of any intermediate conversion mechanism；Hydraulic cylinder is that hydraulic energy is changed into machinery
Can, the hydraulic actuator that moves in a straight line, its simple in structure, reliable operation；Cylinder is to turn the pressure energy of compressed gas
Pneumatic actuator being changed to mechanical energy, moving in a straight line realizes the linear motion of axial drive means cut somebody's hair.
The planetary gear shaft is cross planetary gear shaft, and distinguishing empty set on the shaft of the planetary gear shaft is symmetrical arranged
Planetary gear, each shaft of cross planetary gear shaft shares each planetary gear in load and cross planetary gear shaft and shares
Load is all smaller with respect to a word planet axis, therefore cross planetary gear shaft is than load that a conventionally employed word planet axis can carry
Opposite to improve, each shaft of cross planetary gear shaft is unlikely to deform, and positional precision improves between planetary gear, differential mechanism internal gear
Between rotary motion be not in it is suddenly tight neglect loose phenomenon, the service life of rear-guard retarder, the stability of operating, output can be improved
Torque.
Centered on signal panels axial line and respectively 360 ° of the driving device of setting at least three, can protect on the retarder
The axial thrust for demonstrate,proving at least three driving devices acts on signal panels, mitigates signal panels unbalance stress degree, and it is existing to mitigate unbalance loading
As.
The driving motor is permanent magnet synchronous motor or AC induction motor.The power efficiency of permanent magnet synchronous motor itself
High and power factor is high；It generates heat small, therefore electromotor cooling system is simple in structure, small, noise is small；The overload current of permission
Greatly, reliability significantly improves.AC induction motor reliability is high, service life is long；Versatility is extremely strong, it is possible to provide various cooling classes
Type, degree of protection and various models are to be suitable for corrosive environmental conditions and dangerous application scenario.Using foregoing invention, its energy
Facilitate the vehicle fore cabin space layout of hybrid vehicle, can also be convenient for the transmission and disconnection of control driving motor power, prevent
Driving motor is dragged by counter, moreover it is possible to vehicle efficiency is improved, it is energy saving.
The invention will be further described in the following with reference to the drawings and specific embodiments.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the exploded view of gear ring mounting structure.
In attached drawing, 1 is driving motor, and 2 be input shaft assembly, and 3 be intermediate shaft assembly, and 4 be differential assembly, and 5 be position
Sensor, 6 be driving device, and 7 be speed reducer assembly, and 1-1 is motor shaft left bearing, and 1-2 is motor shaft, and 1-3 is that motor shaft is right
Bearing, 1-4 are output gear, and 2-1 is input shaft left bearing, and 2-2 is input shaft, and 2-3 is input shaft right bearing, and 3-1 is centre
Axis left bearing, 3-2 are jackshaft, and 3-3 is countershaft-gear, and 3-4 is jackshaft right bearing, and 3-5 is two level driving gear, 4-1
For differential mechanism left bearing, 4-10 is final gear, and 4-11 is right differential housing, and 4-12 is differential mechanism right bearing, and 4-2 is poor
Fast device left shell, 4-3 are signal panels, and 4-4 is return spring, and 4-5 is gear ring, and 4-6 is axle shaft gear, and 4-7 is planetary gear
Axis, 4-9 are planet carrier, and 6-1 is to cut somebody's hair, and a is end-tooth, and b is extension set pipeline section, and d is planetary gear, and e is axially mounted column, f
To install the shaft shoulder, g is circumferential registration curved surface, and n is retainer ring.
Specific implementation mode
With reference to attached drawing, specific embodiments of the present invention are will be described in.
Referring to Fig. 1 to Fig. 2, a kind of embodiment of the rear electric drive assembly of hybrid vehicle, after hybrid vehicle
Electric drive assembly includes driving motor 1 and speed reducer assembly 7, and the speed reducer assembly 7 includes being mounted in reduction-gear housing body
The differential casing of differential assembly 4, the differential assembly is opposite by differential mechanism left shell 4-2 and right differential housing 4-11
It is connected and fixed to form body structure, the differential mechanism left shell 4-2 and right differential housing 4-11 are respectively equipped with and pass through for semiaxis
Extension set pipeline section b, extension set pipeline section b is supported on by bearing on reduction case.In the present embodiment, the differential mechanism left housing
Body 4-2 is in hat shape, and the left case of transmission of hat shape is for accommodating planet carrier 4-9 and gear ring 4-5, the differential mechanism left shell 4-2
The extension set pipeline section b for being raised in end face center, the differential mechanism left shell 4-2 right ends edge and right differential housing is arranged in left end
4-11 is connected and fixed, and the extension set pipeline section b of the differential mechanism left shell 4-2 is supported on retarder by differential mechanism left bearing 4-1
On babinet, the extension set pipeline section b of the right differential housing 4-2 is supported on reduction case by differential mechanism right bearing 4-12
On；Centered on multiple left shell 4-2 axial lines by differential mechanism are arranged in the left sides differential mechanism left shell 4-2 and respectively 360 °
Via, this structure can ensure that torque transmits uniform between differential mechanism left shell and gear ring 4-5, improves differential mechanism left housing
The structural life-time of body and gear ring 4-5.
A final gear 4-10 is connected firmly on the differential casing, final gear 4-10 receives to come from driving motor
The torque of 1 output, it is preferable that the driving motor 1 is permanent magnet synchronous motor or AC induction motor；Permanent magnet synchronous motor sheet
The power efficiency of body is high and power factor is high；It generates heat small, therefore electromotor cooling system is simple in structure, small, noise is small；Permit
Perhaps overload current is big, and reliability significantly improves；AC induction motor reliability is high, service life is long；Versatility is extremely strong, can carry
For various cooling types, degree of protection and various models to be suitable for corrosive environmental conditions and dangerous application scenario.It is described
Differential casing internal clearance supports a planetary gear shaft 4-7 with rotatable planet carrier 4-9 is unified in the planet carrier 4-9,
Preferably, the planetary gear shaft 4-7 is cross planetary gear shaft, distinguishes empty set pair on the shaft of the planetary gear shaft 4-7
The planetary gear d of setting, each shaft of cross planetary gear shaft is claimed to share each planet in load and cross planetary gear shaft
Gear d shares that load is all smaller with respect to a word planet axis, therefore cross planetary gear shaft is than a conventionally employed word planet axis energy
The load of carrying is opposite to be improved, and each shaft of cross planetary gear shaft is unlikely to deform, and positional precision improves between planetary gear d,
Rotary motion between differential mechanism internal gear is not in suddenly tight suddenly loose phenomenon, can improve service life, the operating of rear-guard retarder
Stability, output torque.The symmetrically arranged planetary gear d of empty set, differential mechanism left shell are distinguished on the planetary gear shaft 4-7
An axle shaft gear 4-6 engaged with planetary gear d is respectively supported in 4-2 and right differential housing 4-11, the planet carrier 4-9's
The end-tooth a being distributed along planet carrier 4-9 annular end faces is arranged in one axial end face, and being nested with one in the differential casing can axially move
The end-tooth of moving teeth torus 4-5, the gear ring 4-5 are corresponding with the end-tooth a of planet carrier 4-9 set on an axial end face, described
Multiple axially mounted column e are arranged in another axial end of gear ring 4-5, and gear ring 4-5 passes through multiple axially mounted column e and differential mechanism
The via being correspondingly arranged on shell cooperatively forms circumferentially positioned, these axially mounted common one letters of bearing of column e stretchings differential mechanisms
Dialer 4-3.In the present embodiment, the gear ring 4-5 include one engagement gear ring, it is described engagement gear ring lower face setting for
The end-tooth a of planet carrier 4-9 end joineds, the upper surface setting of the engagement gear ring are multiple centered on engaging gear ring axial line
And respectively 360 ° of axially mounted column e, the outer cylinder of the axially mounted column e are respectively provided with the installation shaft shoulder of installation signal panels 4-3
F, circumferential registration curved surface g and retainer ring fixing groove；The signal panels 4-3 is nested with the circumferential registration song in each axially mounted column e
Axial limiting is carried out on the positioning cylinder that face g is collectively formed and by retainer ring n and installation shaft shoulder f, it can be just using this structure
It is removably connected and fixed with gear ring 4-5 in signal panels 4-3, is safeguarded convenient for assembly or disassembly.
Return spring 4-4, the signal panels 4-3 and differential carrier are set between the signal panels 4-3 and differential casing
The return spring 4-4 being arranged between body end face can be to top waveform spring, butterfly spring or helical spring, to pushing up waveform spring
Installation space very little, having reduces noise, reduces vibration performance；Butterfly spring short, load weight with stroke, required space is small,
It is applied in combination conveniently, repairs easy, economic, safe, the characteristic with long service life that changes the outfit；There is helical spring manufacture to compare
It is easy, structure is compact, the high characteristic of energy interest rate.Setting one is used for drive signal disk 4-3 axial directions position on the retarder
The driving device 6 of shifting, the driving device 6 can be line motor, cylinder or hydraulic cylinder, and line motor is a kind of that electric energy is straight
Switch through and change linear motion mechanical energy into, without the transmission device of any intermediate conversion mechanism；Hydraulic cylinder is to turn hydraulic energy
Hydraulic actuator becoming mechanical energy, moving in a straight line, its simple in structure, reliable operation；Cylinder is by compressed gas
The 6-1 that cuts somebody's hair of axial drive means 6 can be achieved in pneumatic actuator that pressure energy is converted to mechanical energy, moving in a straight line
Linear motion.The 6-1 that cuts somebody's hair of the driving device 6 can be acted axially on signal panels 4-3 outer end faces, can pass through signal panels 4-3
Gear ring 4-5 is driven to do the axial movement relative to differential casing, it is preferable that at least three are arranged on the retarder with letter
Centered on dialer 4-3 axial lines and respectively 360 ° of driving device 6 can guarantee at least three if a wherein driving device 6 fails
The axial thrust of driving device 6 acts on signal panels 4-3, mitigates signal panels 4-3 unbalance stress degree, mitigates unbalance loading phenomenon.
The position sensor 5 of axial position for judging signal panels 4-3, the position sensor 5 and axis are set in the retarder
It is electrically connected respectively with electronic control system to driving device 6.
Preferably, deceleration mechanism, the torque that the driving motor 1 exports are set between the driving motor 1 and differential mechanism
By passing to final gear 4-10 after deceleration mechanism deceleration torque, setting deceleration mechanism can either carry out deceleration torque, again
Driving motor 1 can be ensured in 1 efficiency of high efficiency range operational proof driving motor.In the present embodiment, the motor shaft of driving motor 1
It stretches into reduction-gear housing body, a motor shaft 1-2 and input shaft 2-2 is attached by spline, and input shaft 2-2 passes through input
Axis left bearing 2-1 and input shaft right bearing 2-3 are supported in reduction-gear housing body.An output gear is connected firmly on the input shaft 2-2
1-4, the deceleration mechanism are two reduction gear, and the deceleration mechanism includes intermediate shaft assembly 3, and the intermediate shaft assembly 3 wraps
It includes and connects firmly a countershaft-gear on jackshaft 3-2, jackshaft left bearing 3-1 and jackshaft right bearing 3-4, the jackshaft 3-2
3-3, the both ends two level driving gear 3-5, the jackshaft 3-2 pass through jackshaft left bearing 3-1 and jackshaft right bearing 3-4 respectively
It is supported on reduction case, the countershaft-gear 3-3 is engaged with output gear 1-4, the two level driving gear 3-5 and master
Reduction gearing 4-10 engagements, the gear that the power that driving motor 1 exports is formed by output gear 1-4 and countershaft-gear 3-3
Pair realizes that primary deceleration torque, power pass through the gear of two level active time and final gear 4-10 compositions by jackshaft 3-2
Pair realizes secondary speed-reducing torque.
When carrying out vehicle traction using the above scheme, when vehicle is climbed or is accelerated, needs driving motor 1 to participate in vehicle and drive
When dynamic, the electronic control system of vehicle controls axial drive means 6, and the 6-1 that cuts somebody's hair can be released.Cutting somebody's hair 6-1 at this time can be with
Signal panels 4-3 is in contact and generates thrust to signal panels 4-3, and under the action of this thrust, signal panels 4-3 can overcome
The elastic force of return spring 4-4, and axially move, and then gear ring 4-5 movements are driven, when gear ring 4-5 moves a spacing
From rear, the end-tooth a of the end faces gear ring 4-5 can be engaged with the end-tooth a structures of the end faces planet carrier 4-9, at this time gear ring 4-5
Realize that torque transmits between planet carrier 4-9.Driving motor 1 works at this time, can be transmitted to the power from driving motor 1
Final gear 4-10, and then power is transmitted to gear ring 4-5 by differential casing, and driven by end-tooth a structures
Planet carrier 4-9, then planetary gear d groups are transmitted to, to be transmitted to jackshaft and wheel, realize the driving to vehicle, i.e., it is electric
Drive assembly can participate in the operating modes such as driving and the energy regenerating of vehicle.When do not need driving motor 1 participate in power output or
When ability recycles, 6 unpowered output of driving motor 1 and axial drive means.It is pushed away with non-at the 6-1 that cuts somebody's hair of axial drive means 6
It does well, since signal panels 4-3 is acted on by the elastic force from return spring 4-4, i.e. axial drive means 6 and signal panels 4-3
Positioned at outermost end, the end-tooth a of gear ring 4-5 and the end faces planet carrier 4-9 is discrete state, i.e. gear ring 4-5 and planet carrier 4-9
Between powerless effect.Since the differential casing internal clearance is with unification rotatable planet carrier 4-9, planet carrier 4-9
Movement can be freely rotated inside differential casing.At this point, the movement of planet carrier 4-9 and gear ring 4-5 are mutually not
It is impacted, gear ring 4-5 counter will not be dragged, the dynamical system of vehicle front-wheel can individually drive vehicle at this time；Driving electricity
Machine 1, input shaft assembly 2, Middle shaft assembly and differential mechanism left shell 4-2 in differential assembly 4, right differential housing 4-11,
Final gear 4-10, gear ring, signal panels 4-3 etc. are in stationary state, will not rotate with wheel, will not occur
The energy losses such as oil and friction are stirred, to reach certain energy saving purpose.Using the present invention, it can facilitate hybrid vehicle
Vehicle fore cabin space layout can also be convenient for the transmission and disconnection of control driving motor power, prevent driving motor from being dragged by counter, moreover it is possible to
Vehicle efficiency is improved, it is energy saving.
Claims (10)
1. a kind of rear electric drive assembly of hybrid vehicle, including driving motor（1）And speed reducer assembly（7）, feature exists
In：The speed reducer assembly（7）It include the differential assembly in reduction-gear housing body（4）, the difference of the differential assembly
Fast device shell is by differential mechanism left shell（4-2）And right differential housing（4-11）It is connected and fixed to form body structure in opposite directions, it is described
Differential mechanism left shell（4-2）And right differential housing（4-11）It is respectively equipped with the extension set pipeline section passed through for semiaxis（b）, extension set
Pipeline section（b）It is supported on reduction case by bearing, a final gear is connected firmly on the differential casing（4-10）, the master
Reduction gearing（4-10）Receive to come from driving motor（1）The torque of output, the differential casing internal clearance are rotatable with unifying
Planet carrier（4-9）, the planet carrier（4-9）One planetary gear shaft of interior bearing（4-7）, the planetary gear shaft（4-7）On
The symmetrically arranged planetary gear of empty set respectively（d）, differential mechanism left shell（4-2）And right differential housing（4-11）Interior each bearing one
A and planetary gear（d）The axle shaft gear of engagement（4-6）, the planet carrier（4-9）An axial end face be arranged along planet carrier（4-
9）The end-tooth of annular end face distribution（a）, one, which is nested with, in the differential casing is axially movable gear ring（4-5）, the tooth
Torus（4-5）End-tooth be set to an axial end face and planet carrier（4-9）End-tooth（a）It is corresponding, the gear ring（4-5）'s
Multiple axially mounted columns are arranged in another axial end（e）, gear ring（4-5）Pass through multiple axially mounted columns（e）With differential casing
On the via being correspondingly arranged cooperatively form circumferentially positioned, these axially mounted columns（e）Stretch out differential mechanism one signal of bearing jointly
Disk（4-3）, the signal panels（4-3）Return spring is set between differential casing（4-4）, on the retarder setting one use
In drive signal disk（4-3）The driving device of axial displacement（6）, the driving device（6）Cut somebody's hair（6-1）Letter can be acted axially on
Dialer（4-3）On outer end face, signal panels can be passed through（4-3）Drive gear ring（4-5）Do the axial direction fortune relative to differential casing
It is dynamic, it is arranged for judging signal panels in the retarder（4-3）Axial position position sensor（5）, the position sensing
Device（5）With axial drive means（6）It is electrically connected respectively with electronic control system.
2. the rear electric drive assembly of hybrid vehicle according to claim 1, it is characterised in that：The differential mechanism left housing
Body（4-2）In hat shape, the differential mechanism left shell（4-2）The extension set pipeline section for being raised in end face center is arranged in left end（b）, described
Differential mechanism left shell（4-2）Right end edge and right differential housing（4-11）It is connected and fixed, the differential mechanism left shell（4-2）It is left
End face setting is multiple with differential mechanism left shell（4-2）Centered on axial line and respectively 360 ° of via.
3. the rear electric drive assembly of hybrid vehicle according to claim 1, it is characterised in that：The gear ring（4-
5）Including an engagement gear ring, the lower face setting of the engagement gear ring is used for and planet carrier（4-9）The end-tooth of end joined
（a）, multiple centered on engaging gear ring axial line and respectively 360 ° of axially mounted columns are arranged in the upper surface of the engagement gear ring
（e）, the axially mounted column（e）Outer cylinder be respectively provided with installation signal panels（4-3）The installation shaft shoulder（f）, circumferential registration curved surface
（g）And retainer ring fixing groove；The signal panels（4-3）It is nested in each axially mounted column（e）Circumferential registration curved surface（g）Altogether
On the same positioning cylinder formed and pass through retainer ring（n）With the installation shaft shoulder（f）Carry out axial limiting.
4. the rear electric drive assembly of hybrid vehicle according to claim 1, it is characterised in that：The driving motor
（1）Slow down between differential mechanism mechanism, the driving motor（1）The torque of output after deceleration mechanism deceleration torque by passing to
Final gear（4-10）.
5. the rear electric drive assembly of hybrid vehicle according to claim 4, it is characterised in that：The deceleration mechanism is
Two reduction gear, the deceleration mechanism includes intermediate shaft assembly（3）, the intermediate shaft assembly（3）Including jackshaft（3-2）、
Jackshaft left bearing（3-1）With jackshaft right bearing（3-4）, the jackshaft（3-2）On connect firmly a countershaft-gear（3-3）、
Two level driving gear（3-5）, the jackshaft（3-2）Both ends pass through jackshaft left bearing respectively（3-1）With jackshaft right bearing
（3-4）It is supported on reduction case, the countershaft-gear（3-3）With output gear（1-4）Engagement, the two level driving tooth
Wheel（3-5）With final gear（4-10）Engagement.
6. the rear electric drive assembly of hybrid vehicle according to claim 1, it is characterised in that：The signal panels（4-
3）The return spring being arranged between differential casing end face（4-4）For to top waveform spring, butterfly spring or helical spring.
7. the rear electric drive assembly of hybrid vehicle according to claim 1, it is characterised in that：The driving device
（6）For line motor, cylinder or hydraulic cylinder.
8. the rear electric drive assembly of hybrid vehicle according to claim 1, it is characterised in that：The planetary gear shaft
（4-7）For cross planetary gear shaft, the planetary gear shaft（4-7）Shaft on respectively the symmetrically arranged planetary gear of empty set
（d）.
9. the rear electric drive assembly of hybrid vehicle according to claim 1, it is characterised in that：It is set on the retarder
At least three are set with signal panels（4-3）Centered on axial line and respectively 360 ° of driving device（6）.
10. the rear electric drive assembly of hybrid vehicle according to claim 1, it is characterised in that：The driving motor
（1）For permanent magnet synchronous motor or AC induction motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810279484.6A CN108327529A (en) | 2018-03-30 | 2018-03-30 | The rear electric drive assembly of hybrid vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810279484.6A CN108327529A (en) | 2018-03-30 | 2018-03-30 | The rear electric drive assembly of hybrid vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108327529A true CN108327529A (en) | 2018-07-27 |
Family
ID=62932003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810279484.6A Pending CN108327529A (en) | 2018-03-30 | 2018-03-30 | The rear electric drive assembly of hybrid vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108327529A (en) |
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| CN112347559A (en) * | 2020-10-27 | 2021-02-09 | 东风汽车集团有限公司 | Power assembly layout feasible region determination method |
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