CN109421524A - A kind of electric axle assembly - Google Patents
A kind of electric axle assembly Download PDFInfo
- Publication number
- CN109421524A CN109421524A CN201710774408.8A CN201710774408A CN109421524A CN 109421524 A CN109421524 A CN 109421524A CN 201710774408 A CN201710774408 A CN 201710774408A CN 109421524 A CN109421524 A CN 109421524A
- Authority
- CN
- China
- Prior art keywords
- retarder
- axle
- differential mechanism
- gear
- 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
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Classifications
-
- 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
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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
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
-
- 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
- B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Motor Power Transmission Devices (AREA)
- Retarders (AREA)
Abstract
Entitled a kind of electric axle assembly of the invention.Belong to field of automobile.It mainly solves the problems, such as that existing electric axle assembly transmission chain is longer.Being mainly characterized by comprising: for it includes driving motor, retarder, differential mechanism, left half axle, right axle shaft and wheel end；Driving motor is connected between left axle housing and right axle housing；Loaded in left axle housing, retarder and differential mechanism cooperate for the retarder and differential mechanism；The output shaft of the driving motor is the cavity gear shaft for being integrated with level-one driving gear, is connect with retarder；The left half axle connects differential mechanism with revolver end；Right axle shaft is passed through out of driving motor output shaft axocoel, and differential mechanism is connected with right wheel end；Integrated monolithic electric axle assembly.The present invention have it is compact-sized, power output be steadily lost it is small, reduce occupy compartment passenger space the characteristics of, be mainly used for the 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 electric vehicle for pure electric automobile Deep integrating
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.Traditional structure transmission chain is longer to cause transmission efficiency to be lost
The bigger spacial influence compartment passenger's passenger capacity that can occupy partial automobile of larger and each components volume and battery arrangement space shadow
Ring 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 by motor, retarder, differential mechanism and biography
Mechanical vehicle bridge of uniting is an electric axle assembly by Deep integrating.Such compact structure arrangement can shorten transmission chain raising
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 is using following technical solution: a kind of electric axle assembly, including axle housing,
Driving motor, retarder, differential mechanism, left half axle, right axle shaft and wheel end, it is characterised in that: the axle housing includes left axle housing, You Qiao
Shell；The driving motor is between left axle housing and right axle housing；The retarder and differential mechanism loaded in left axle housing, retarder with
Differential mechanism cooperation；The output shaft of the driving motor is the cavity gear shaft for being integrated with level-one driving gear, level-one driving gear
It is connected with retarder；The left half axle both ends are connect with the wheel end on the left of differential mechanism and left side respectively, and right axle shaft passes through driving electricity
The output shaft axocoel of machine, both ends are connect with the wheel end on the right side of differential mechanism and right side respectively；Integrated monolithic electric axle assembly.
Retarder described in technical solution of the invention includes level-one driven gear and second level driving gear；It is described
Differential mechanism includes second level driven gear, planetary gear, axle shaft gear and poor shell；The level-one driven gear and driving motor of retarder
The level-one driving gear of output shaft cooperates, and the second level driving gear of retarder cooperates with the second level driven gear of differential mechanism；Driving
Motor output shaft is parallel axle construction with reducer gear axis；Driving motor output shaft and wheel end, left half axle, right axle shaft are coaxial.
Left axle housing described in technical solution of the invention includes bearing saddle bore, passes through bearing support retarder and difference
Fast device；Driving motor is connected with left axle housing, right axle housing, forms common bearing structure together.
Bearing saddle bore described in technical solution of the invention includes bearing saddle bore and the position of reducing gearbox body portion
Bearing saddle bore on left axle housing central axes；Wherein, the bearing saddle bore of reducing gearbox body portion supports retarder guiding axis respectively
It holds, head bearing and tail bearing, plays a supporting role to speed reducer assembly；Bearing saddle bore support on left axle housing central axes is poor
Fast device bearings at both ends, plays a supporting role to differential mechanism.
The present invention is based on the power transmission arrangments of existing pure electric automobile, by retarder, differential mechanism and tradition machinery vehicle
Bridge is an electric axle assembly by Deep integrating, eliminates transmission shaft, power is directly inputted to wheel by left and right half
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. retarder；3. differential mechanism；4. left half axle；5. right axle shaft；6, left axle housing；7,
Right axle housing；8. level-one driving gear；9. level-one driven gear；10. second level driving gear；11. second level driven gear；12.
Poor shell；13 planetary gears；14, axle shaft gear.
Specific embodiment
As shown in Figure 1, a kind of electric axle assembly of the present invention is by driving motor 1, retarder 2, differential mechanism 3, left half axle 4, right half
Axis 5, left axle housing 6, right axle housing 7 and wheel end composition.Wherein, driving motor 1 is connected between left axle housing 6 and right axle housing 7.Retarder
2 and differential mechanism 3 loaded in left axle housing 6, retarder 2 and differential mechanism 3 cooperate.1 output shaft of driving motor is to be integrated with level-one actively
The cavity gear shaft of gear 8, level-one driving gear 8 are connected with retarder 2.Retarder 2 is by level-one driven gear 9, second level active
Gear 10 forms gear set.Differential mechanism 3 includes second level driven gear 11, planetary gear 13, axle shaft gear 14 and poor shell 12.Left half
4 both ends of axis are connect with the wheel end in the left side of differential mechanism 3 and left side respectively, right axle shaft 5 across driving motor 1 output shaft axocoel, two
End is connect with the wheel end on 3 right side of differential mechanism and right side respectively.Integrated monolithic electric axle assembly.The level-one of retarder 2 is driven
The level-one driving gear 8 of gear 9 and 1 output shaft of driving motor cooperates, and the second level driving gear 10 of retarder 2 is the same as differential mechanism 3
Second level driven gear 11 cooperates.1 output shaft of driving motor is parallel axle construction, 1 output shaft of driving motor with 2 gear shaft of retarder
It is coaxial with wheel end, left half axle 4, right axle shaft 5.Left axle housing 6 includes bearing saddle bore, passes through bearing support retarder 2 and differential mechanism 3.
The bearing saddle bore and the bearing saddle bore on left axle housing central axes that bearing saddle bore includes 2 housing parts of retarder, wherein slow down
The bearing saddle bore of 2 housing parts of device supports retarder guide bearing, head bearing and tail bearing respectively, plays branch to speed reducer assembly
Support effect, the bearing saddle bore on left axle housing central axes support 3 bearings at both ends of differential mechanism, play a supporting role to differential mechanism 3.
Driving motor 1 is connected with left axle housing 6, right axle housing 7, forms common bearing structure together.Power is passed to by level-one driving gear 8
Retarder level-one driven gear 9, then the second level driven gear 11 with 3 one of differential mechanism is driven by second level driving gear 10, it is poor
Power is transmitted to wheel end by left half axle 4 on one side by fast device 3, while being passed through motor axocoel by right axle shaft 5 and being delivered power to
Opposite direction wheel end.Left axle housing 6 includes bearing saddle bore, supports retarder 2 and differential mechanism 3 respectively by bearing.
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.Retarder 2 is installed in left axle housing 6 and is integrated with differential mechanism 3, is driven
The power of motor 1 is input to two side wheel ends by level-one driving gear 8, retarder 2, differential mechanism 3, wheel end semiaxis 4,5, eliminates
Bevel gear makes the input and output side of power be located at same axis, therefore the steady efficiency of power output is higher.Cancel transmission shaft
Reduce number of parts, so that its compact-sized weight saving, increases compartment passenger space and battery arrangement space, improve
Product applicability and competitiveness.
Claims (4)
1. a kind of electric axle assembly, including axle housing, driving motor (1), retarder (2), differential mechanism (3), left half axle (4), the right side
Semiaxis (5) and wheel end, it is characterised in that: the axle housing includes left axle housing (6), right axle housing (7)；The driving motor (1) is located at
Between left axle housing (6) and right axle housing (7)；The retarder (2) and differential mechanism (3) loaded in left axle housing (6), retarder (2) with
Differential mechanism (3) cooperation；Driving motor (1) output shaft is the cavity gear shaft for being integrated with level-one driving gear (8), level-one master
Moving gear (8) same to retarder (2) connection；Left half axle (4) both ends connect with the wheel end on the left of differential mechanism (3) and left side respectively
It connects, right axle shaft (5) passes through the output shaft axocoel of driving motor (1), and both ends connect with the wheel end on the right side of differential mechanism (3) and right side respectively
It connects；Integrated monolithic electric axle assembly.
2. a kind of electric axle assembly according to claim 1, it is characterised in that: the retarder (2) include level-one from
Moving gear (9) and second level driving gear (10)；The differential mechanism (3) includes second level driven gear (11), planetary gear (13), half
Shaft gear (14) and poor shell (12)；The level-one active of the level-one driven gear (9) and driving motor (1) output shaft of retarder (2)
Gear (8) cooperation, second level driven gear (11) cooperation of second level driving gear (10) the same to differential mechanism (3) of retarder (2)；Driving
Motor (1) output shaft same retarder (3) gear shaft is parallel axle construction；Driving motor (1) output shaft and wheel end, left half axle (4),
Right axle shaft (5) is coaxial.
3. a kind of electric axle assembly according to claim 1 or 2, it is characterised in that: the left axle housing (6) includes axis
Bearing hole passes through bearing support retarder (2) and differential mechanism (3)；Driving motor (1) is connected with left axle housing (6), right axle housing (7),
Common bearing structure is formed together.
4. a kind of electric axle assembly according to claim 3, it is characterised in that: the bearing saddle bore includes retarder
(3) bearing saddle bore of housing parts and the bearing saddle bore being located on left axle housing (6) central axes；Wherein, retarder (3) housing parts
Bearing saddle bore support retarder guide bearing, head bearing and tail bearing respectively；Bearing saddle bore on left axle housing central axes
Support differential mechanism bearings at both ends.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710774408.8A CN109421524A (en) | 2017-08-31 | 2017-08-31 | A kind of electric axle assembly |
| PCT/CN2018/103422 WO2019042387A1 (en) | 2017-08-31 | 2018-08-31 | Electric axle assembly |
| JP2019548943A JP2020531335A (en) | 2017-08-31 | 2018-08-31 | Electric axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710774408.8A CN109421524A (en) | 2017-08-31 | 2017-08-31 | A kind of electric axle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109421524A true CN109421524A (en) | 2019-03-05 |
Family
ID=65504753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710774408.8A Pending CN109421524A (en) | 2017-08-31 | 2017-08-31 | A kind of electric axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109421524A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303880A (en) * | 2019-07-15 | 2019-10-08 | 江苏九龙汽车制造有限公司 | A kind of mini electric vehicle integral electric bridge |
| CN110329005A (en) * | 2019-08-21 | 2019-10-15 | 湖北车桥有限公司 | A kind of coaxial motor axle assembly with cooling device |
| CN111469606A (en) * | 2020-04-29 | 2020-07-31 | 广西玉柴机器股份有限公司 | Coaxial three-stage speed reduction electric drive axle adopting cylindrical gear differential mechanism |
| CN111806157A (en) * | 2020-07-17 | 2020-10-23 | 合肥美桥汽车传动及底盘***有限公司 | Electric drive axle assembly |
| CN112477568A (en) * | 2020-12-28 | 2021-03-12 | 重庆市佳南工贸有限公司 | Coaxial electric vehicle rear axle and electric vehicle |
| CN114290883A (en) * | 2022-01-10 | 2022-04-08 | 广西汽车集团有限公司 | Novel electromechanical integrated electric drive axle structure |
-
2017
- 2017-08-31 CN CN201710774408.8A patent/CN109421524A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303880A (en) * | 2019-07-15 | 2019-10-08 | 江苏九龙汽车制造有限公司 | A kind of mini electric vehicle integral electric bridge |
| CN110329005A (en) * | 2019-08-21 | 2019-10-15 | 湖北车桥有限公司 | A kind of coaxial motor axle assembly with cooling device |
| CN111469606A (en) * | 2020-04-29 | 2020-07-31 | 广西玉柴机器股份有限公司 | Coaxial three-stage speed reduction electric drive axle adopting cylindrical gear differential mechanism |
| CN111806157A (en) * | 2020-07-17 | 2020-10-23 | 合肥美桥汽车传动及底盘***有限公司 | Electric drive axle assembly |
| CN112477568A (en) * | 2020-12-28 | 2021-03-12 | 重庆市佳南工贸有限公司 | Coaxial electric vehicle rear axle and electric vehicle |
| CN114290883A (en) * | 2022-01-10 | 2022-04-08 | 广西汽车集团有限公司 | Novel electromechanical integrated electric drive axle structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination |