CN109421527A - A kind of 2AMT electric axle assembly - Google Patents
A kind of 2AMT electric axle assembly Download PDFInfo
- Publication number
- CN109421527A CN109421527A CN201710775696.9A CN201710775696A CN109421527A CN 109421527 A CN109421527 A CN 109421527A CN 201710775696 A CN201710775696 A CN 201710775696A CN 109421527 A CN109421527 A CN 109421527A
- Authority
- CN
- China
- Prior art keywords
- gear
- differential mechanism
- wheel end
- speed transmission
- driving motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 238000010276 construction Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/121—Power-transmission from drive shaft to hub
- B60B35/122—Power-transmission from drive shaft to hub using gearings
-
- 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
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Entitled a kind of 2AMT electric axle assembly of the invention.Belong to field of automobile.It mainly solves the problems, such as that existing electric axle assembly is inefficient there are driving motor and traditional structure transmission chain is longer.Being mainly characterized by comprising: for it includes driving motor, wheel end retarder, differential mechanism, wheel end semiaxis, wheel end and two speed transmission；The two speed transmission is located in the poor shell of differential mechanism, and two speed transmission and differential mechanism cooperate；The output end of the driving motor is the axocoel gear shaft of translator output gear, is connect with differential mechanism；The wheel end semiaxis is passed through out of gear shaft axocoel, and differential mechanism, wheel end retarder and wheel end are sequentially connected.The present invention has the characteristics that driving motor is made to be maintained at efficiency operation section, reduces energy consumption and reduce occupancy compartment passenger space, is mainly used for the 2AMT electric axle assembly of pure electric automobile Deep integrating.
Description
Technical field
The invention belongs to field of automobile, and in particular to a kind of 2AMT electricity for pure electric automobile Deep integrating
Motor-car axle assembly.
Background technique
Currently, most pure electric automobiles are all made of the power transmission arrangment of traditional combustion engine automobile, including driving electricity
Machine, transmission shaft, retarder/differential assembly, axle half shafts and wheel end.Since retarder fixed speed ratio wants driving motor performance
It asks higher, driving motor is needed to have more wide in range efficiency operation section and keeps higher peak efficiency.Beyond high efficiency
Operation interval driving motor causes energy waste more, this adversely affects the course continuation mileage of vehicle, is also driving motor choosing
Type and cost control bring difficulty.Traditional structure transmission chain is longer simultaneously causes transmission efficiency loss larger and each components body
The bigger spacial influence compartment passenger's passenger capacity that can occupy partial automobile of product and battery arrangement spacial influence vehicle continual mileage.
Summary of the invention
In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a kind of two grades of speed changes that will be integrated with differential mechanism
It is an electric axle assembly that device and tradition machinery vehicle bridge, which pass through Deep integrating,.Due to being integrated with two speed transmission, vehicle driving
It can make driving motor work in efficiency operation section in the case where requiring speed, improve driving motor efficiency, reduce energy consumption,
Traveling and overgear are enough competent most cities traffic condition, while such compact structure arrangement can shorten transmission chain and mention
High efficiency promotes compartment passenger capacity and increases the battery capacity in compartment, to reduce unit mounted mass energy consumption.
To achieve the above object, the present invention uses a kind of following technical solution: 2AMT electric axle assembly, including drives
Dynamic motor, wheel end retarder, differential mechanism, wheel end semiaxis and wheel end, it is characterised in that: include two speed transmission；Two grades of changes
Fast device is located in the poor shell of differential mechanism, and two speed transmission and differential mechanism cooperate；The output end of the driving motor is that translator is defeated
The axocoel gear shaft of gear out, connect with differential mechanism；The wheel end semiaxis is passed through out of gear shaft axocoel, by differential mechanism, wheel end
Retarder and wheel end are sequentially connected.
Two speed transmission described in technical solution of the invention includes jackshaft and the centre for being mounted on jackshaft
Shaft gear, two shelves gears；Differential mechanism includes the gear on gear shaft, takes turns the first driven gear, combined cover and the on the semiaxis of end
Two driven gears；Gear on countershaft-gear and gear shaft cooperates, two shelves gears and the first driven gear and the second driven tooth
Wheel cooperation；Motor output shaft on the same line, forms parallel axle construction with jackshaft with wheel end semiaxis arrangement.
Axle housing described in technical solution of the invention, which is equipped with, is respectively used to support two speed transmission and differential mechanism
Bearing saddle bore；Motor is connected with axle housing, forms common bearing structure.Wherein, the bearing saddle bore of two speed transmission housing parts point
Not Zhi Cheng retarder guide bearing, head bearing and tail bearing, play a supporting role to transmission assembly.On axle housing central axes
Bearing saddle bore support differential mechanism bearings at both ends, play a supporting role to differential mechanism.The present invention is based on existing pure electric automobiles
Power transmission arrangment, by Deep integrating be an electric axle assembly by two speed transmission and tradition machinery vehicle bridge, pass through
Automatically controlled shift execution unit realizes two speed transmission self shifter；Transmission shaft is eliminated simultaneously, power is directly inputted by semiaxis
To wheel end.
Detailed description of the invention
Fig. 1 is pure electric vehicle vehicle bridge structural schematic diagram of the present invention.
In figure: 1. driving motors；2. two speed transmission；3. differential mechanism；4. taking turns end semiaxis；5. taking turns end retarder；6.
Axle housing；7. motor output gear；8. countershaft-gear；9. jackshaft；10. liang shelves gear；11. the first driven gear；
12. combined cover；13. poor shell；14. the second driven gear.
Specific embodiment
As shown in Figure 1, a kind of 2AMT electric axle assembly of the present invention is by driving motor 1, wheel end retarder 5, differential mechanism 3, wheel end
Semiaxis 4, wheel end, two speed transmission 2 and axle housing 6 form.Wherein, two speed transmission 2 is located in the poor shell 13 of differential mechanism 3, and two grades
Speed changer 2 and differential mechanism 3 cooperate.Two speed transmission 2 includes jackshaft 9 and is mounted on 8, two grades of countershaft-gear of jackshaft 9
Gear 10, countershaft-gear 8 is close to driving motor 1.Differential mechanism 3 include gear shaft on gear, take turns end semiaxis 4 on have first from
Moving gear 11, combined cover 12 and the second driven gear 14.Gear on countershaft-gear 8 and gear shaft cooperates, motor output gear
7 drive countershaft-gear 8 of wheel imparts power to jackshaft 9.Two shelves gears 10 and the first driven gear 11 and the second driven tooth
14 cooperation of wheel, completes two grades of shifts.Motor output shaft on the same line, is put down with wheel end semiaxis 4 arrangement with the composition of intermediate axle shaft 9
Row axle construction.The output end of driving motor 1 is the axocoel gear shaft of translator output gear 7, is connect with differential mechanism 3.Take turns end half
Axis 4 is passed through out of gear shaft axocoel, and differential mechanism 3, wheel end retarder 5 and wheel end are sequentially connected.Electronic gear shifting actuating mechanism band
Dynamic shift fork makes combined cover 12 move reciprocatingly between axial direction.It is combined when combined cover 12 moves to left end with the first driven gear 11
When, overgear gear selecting is completed, the first driven gear 11 combines synchronous rotary band driving wheel end semiaxis 4 to pass power with poor shell 13 at this time
It is sent to wheel end, while the opposite wheel end that differential mechanism is transmitted power by another wheel end semiaxis.When combined cover 12 moves to right end
When combining with the second driven gear 14, driving gear gear selecting is completed, the second driven gear 14 combines synchronous rotary with poor shell 13 at this time
Power is transmitted to wheel end by band driving wheel end semiaxis 14, while differential mechanism is taken turns by the opposite direction that another wheel end semiaxis transmits power
End.The design of axle housing 6 has bearing saddle bore, bearing saddle bore, and motor 1 is connected with axle housing 6, forms common bearing structure.Wherein, two grades of changes
The bearing saddle bore of fast 2 housing parts of device supports retarder guide bearing, head bearing and tail bearing respectively, plays to transmission assembly
Supporting role.Bearing saddle bore on axle housing central axes supports 3 bearings at both ends of differential mechanism, plays branch supporting role to differential mechanism 3.
The bearing saddle bore and the bearing saddle bore on axle housing central axes of 2 housing parts of two speed transmission.Wherein, 2 shell of two speed transmission
The bearing saddle bore of body portion supports retarder guide bearing, head bearing and tail bearing respectively, plays support to transmission assembly and makees
With.Bearing saddle bore on axle housing central axes supports 3 bearings at both ends of differential mechanism, plays a supporting role to differential mechanism 3.
Pure electric vehicle vehicle bridge driving unit assembly of the present invention incorporates tradition machinery vehicle bridge in traditional pure electric vehicle driving unit
Function, and structurally and functionally instead of them, and be integrated with two speed transmission in vehicle bridge, it is automatic to realize electric drive
Shift.Two speed transmission 2 is installed in axle housing 6 nearly motor side to integrate with differential mechanism 3, the power of driving motor 1 passes through motor
Output gear 7, speed changer differential assembly, wheel end semiaxis 4, wheel end retarder 5 are input to two side wheel ends, and eliminating bevel gear makes
The input and output side for obtaining power is located at same axis, therefore the steady efficiency of power output is higher.Using two-shift automatic variable speed device,
So that driving motor is maintained at efficiency operation section, reduces energy consumption.Cancelling transmission shaft reduces number of parts, so that its structure
Compact weight saving increases compartment passenger space and battery arrangement space, improves product applicability and competitiveness.
Claims (3)
1. a kind of 2AMT electric axle assembly, including driving motor (1), wheel end retarder (5), differential mechanism (3), wheel end semiaxis
(4) and wheel end, it is characterised in that: further include two speed transmission (2)；The two speed transmission (2) is located at the poor shell of differential mechanism (3)
(13) in, two speed transmission (2) and differential mechanism (3) cooperate；The output end of the driving motor (1) is translator output gear
(7) axocoel gear shaft is connect with differential mechanism (3)；The wheel end semiaxis (4) passes through out of gear shaft axocoel, by differential mechanism
(3), end retarder (5) are taken turns and wheel end is sequentially connected.
2. a kind of 2AMT electric axle assembly according to claim 1, it is characterised in that: the two speed transmission (2)
Including jackshaft (9) and it is mounted on the countershaft-gear (8) of jackshaft (9), two shelves gears (10)；Differential mechanism (3) includes gear
Gear on axis takes turns the first driven gear (11), combined cover (12) and the second driven gear (14) on end semiaxis (4)；It is intermediate
Gear on shaft gear (8) and gear shaft cooperates, two shelves gears (10) and the first driven gear (11) and the second driven gear
(14) cooperate；On the same line with wheel end semiaxis (4) arrangement, same to jackshaft (9) forms parallel axle construction to motor output shaft.
3. a kind of 2AMT electric axle assembly according to claim 1 or 2, it is characterised in that: the axle housing (6) is equipped with
It is respectively used to the bearing saddle bore of support two speed transmission (2) and differential mechanism (3)；Motor (1) same to axle housing (6) connection, composition are common
Bearing structure.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710775696.9A CN109421527A (en) | 2017-08-31 | 2017-08-31 | A kind of 2AMT electric axle assembly |
| PCT/CN2018/103415 WO2019042384A1 (en) | 2017-08-31 | 2018-08-31 | Two-speed automatic mechanical transmission electric axle assembly |
| BR112019022948A BR112019022948A2 (en) | 2017-08-31 | 2018-08-31 | electrical shaft assembly |
| US16/642,871 US20200254870A1 (en) | 2017-08-31 | 2018-08-31 | Two-speed automatic mechanical transmission electric axle assembly |
| JP2019548898A JP2020531333A (en) | 2017-08-31 | 2018-08-31 | Two-speed automatic mechanical transmission electric axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710775696.9A CN109421527A (en) | 2017-08-31 | 2017-08-31 | A kind of 2AMT electric axle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109421527A true CN109421527A (en) | 2019-03-05 |
Family
ID=65504847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710775696.9A Pending CN109421527A (en) | 2017-08-31 | 2017-08-31 | A kind of 2AMT electric axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109421527A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005019438U1 (en) * | 2005-12-13 | 2007-04-19 | Getrag Innovations Gmbh | Drive unit e.g. for motor vehicle, has electrical driving motor having change speed gear having two steps with differential gear is provided which has opening and two outputs connected to wheel drive shaft |
| CN201390131Y (en) * | 2009-02-25 | 2010-01-27 | 长春思达汽车技术咨询有限公司 | Integrated drive and transmission device of electric automobiles |
| CN101722841A (en) * | 2008-10-28 | 2010-06-09 | 比亚迪股份有限公司 | Power assembly for vehicles |
| WO2013038942A1 (en) * | 2011-09-13 | 2013-03-21 | Ntn株式会社 | Vehicular motor drive device and automobile |
| CN105082995A (en) * | 2015-07-24 | 2015-11-25 | 重庆隆旺机电有限责任公司 | Automatic gear shifting rear axle assembly |
| CN105757210A (en) * | 2016-04-23 | 2016-07-13 | 中国第汽车股份有限公司 | Integrated driving device for two-level electric vehicle |
| CN207257373U (en) * | 2017-08-31 | 2018-04-20 | 东风德纳车桥有限公司 | A kind of 2AMT electric axles assembly |
-
2017
- 2017-08-31 CN CN201710775696.9A patent/CN109421527A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005019438U1 (en) * | 2005-12-13 | 2007-04-19 | Getrag Innovations Gmbh | Drive unit e.g. for motor vehicle, has electrical driving motor having change speed gear having two steps with differential gear is provided which has opening and two outputs connected to wheel drive shaft |
| CN101722841A (en) * | 2008-10-28 | 2010-06-09 | 比亚迪股份有限公司 | Power assembly for vehicles |
| CN201390131Y (en) * | 2009-02-25 | 2010-01-27 | 长春思达汽车技术咨询有限公司 | Integrated drive and transmission device of electric automobiles |
| WO2013038942A1 (en) * | 2011-09-13 | 2013-03-21 | Ntn株式会社 | Vehicular motor drive device and automobile |
| CN105082995A (en) * | 2015-07-24 | 2015-11-25 | 重庆隆旺机电有限责任公司 | Automatic gear shifting rear axle assembly |
| CN105757210A (en) * | 2016-04-23 | 2016-07-13 | 中国第汽车股份有限公司 | Integrated driving device for two-level electric vehicle |
| CN207257373U (en) * | 2017-08-31 | 2018-04-20 | 东风德纳车桥有限公司 | A kind of 2AMT electric axles assembly |
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