CN106274459A - A kind of integrated electric drive axle - Google Patents
A kind of integrated electric drive axle Download PDFInfo
- Publication number
- CN106274459A CN106274459A CN201610787860.3A CN201610787860A CN106274459A CN 106274459 A CN106274459 A CN 106274459A CN 201610787860 A CN201610787860 A CN 201610787860A CN 106274459 A CN106274459 A CN 106274459A
- Authority
- CN
- China
- Prior art keywords
- reduction gear
- planetary reduction
- semiaxis
- motor
- differential mechanism
- 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
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
- 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
Abstract
The invention discloses a kind of integrated electric drive axle, solve the problems such as the space availability ratio of electric drive axle is low, transmission efficiency is low, unsprung mass is big in prior art.This integrated electric drive axle includes driving motor, motor shaft, crossing semiaxis, differential mechanism and cross the semiaxis axle housing that semiaxis mates, and planetary reduction gear；The combination of motor, the differential mechanism shell of differential mechanism, semiaxis axle housing is driven to constitute electric drive axle axle housing；Motor shaft is hollow structure, crosses semiaxis and extends there through and be connected with differential mechanism；Power is transferred to planetary reduction gear by motor shaft, and planetary reduction gear drives differential mechanism rotating.The present invention will drive motor, decelerator, bearing bridge system system highly integrated, cancel the drive disk assembly such as power transmission shaft, universal joint, constitute car load power-driven system, have system highly integrated, reduce layout and take up room, and the advantage simultaneously reaching light-weight design.
Description
Technical field
The invention belongs to electric vehicle engineering field, specifically, relate to a kind of highly integrated formula electric drive axle.
Background technology
At present, the commonly used motor of the power assembly of pure electric automobile is arranged in former conventional engines and variator installation position
Putting, retain conventional central parking device, power transmission shaft and gimbal structure, this structure significantly reduces the space utilization on chassis, nothing
Method reaches the light-weighted demand of power assembly.In order to solve the defect that said structure brings, those skilled in the art develop electricity
Drive the design of bridge, be specifically described as follows:
(1) electric drive axle that motor and drive axle are directly integrated: on conventional ADS driving bridge, motor is directly fixed, motor shaft
The simple integration mode of drive axle power shaft is transmitted power to by gear train.For the program, the invention of the present patent application
People finds following defect in realizing process of the present invention: the electric drive axle that motor and drive axle are directly integrated is to V belt translation axle
Scheme carried out simple optimization, still there is the drive system of a set of commutation between motor and drive axle, whole system
Transmission efficiency simply promotes by a small margin, but (motor changes into drive axle from vehicle body is fixing to significantly increase unsprung mass
Fixing).
(2) wheel motor drive axle: belong to the one of drive axle, is by motor and rear-wheel hub global design, makes power total
Become the vehicle system components highly integrated with drive system, make vehicle realize advancing or reversing by motor direct-drive wheel.
For the program, the inventor of the present patent application finds following defect in realizing process of the present invention: the program is to motor control
Requiring height, easily produce the problems such as abnormal tyre abrasion, because of two motors of coupling, assembly cost is high；On the other hand, due to wheel hub
Space limits, and in order to meet car load power demand, needs the motor of more power density, and this adds the one-tenth of whole vehicle bridge undoubtedly
This.
Summary of the invention
In order to improve the problems referred to above, it is an object of the invention to provide a kind of simple in construction, compact, meanwhile, there is system
The integrated electric drive axle of the advantages such as highly integrated, reduction layout takes up room, light-weight design.
Title term in the present patent application is explained:
Crossing semiaxis, refer to be horizontally through the semiaxis of integrated electric drive axle, it is used for connected with differential and driving wheel, moving
Power is transferred to driving wheel.
Semiaxis axle housing, with semiaxis matched design, is used for supporting and protecting semiaxis, and semiaxis axle housing should have enough intensity with just
Degree, quality is little and is beneficial to dismounting.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of integrated electric drive axle, including: drive motor, motor shaft, cross semiaxis, differential mechanism and described cross semiaxis
The semiaxis axle housing joined, and planetary reduction gear；
Further, described driving motor, the differential mechanism shell of described differential mechanism, the combination of described semiaxis axle housing constitute electric drive axle
Axle housing；
Further, described motor shaft is hollow structure, described in cross semiaxis and extend there through and be connected with described differential mechanism；Described electricity
Power is transferred to described planetary reduction gear by arbor, and described planetary reduction gear drives described differential mechanism rotating.
Further, described planetary reduction gear includes planetary reduction gear sun gear, planetary reduction gear two-stage planet wheel and row
Star decelerator external toothing.
Further, described planetary reduction gear sun gear is connected with described motor shaft, described planetary reduction gear double-pinion planetary
Wheel is fixed on described driving motor, and described planetary reduction gear external toothing is fixed on described differential mechanism.Described planetary reduction gear
Two-stage planet wheel is fixed on described driving motor by electric motor end cap and planet wheel spindle fixed mount.
In another embodiment, described planetary reduction gear sun gear is connected with described motor shaft, described planetary reduction gear
Device two-stage planet wheel is fixed on described driving motor by electric motor end cap and planet wheel spindle fixed mount, outside described planetary reduction gear
Gear ring is fixed, and described differential mechanism is fixed with planet wheel spindle fixed mount.
Further, described driving motor is with described to cross semiaxis the most horizontal, and the two can relatively rotate.
In another embodiment, described planetary reduction gear two-stage planet wheel is replaced with planetary reduction gear single-stage planetary
Wheel.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) present invention will drive motor, decelerator, bearing bridge system system highly integrated, thus eliminate power transmission shaft, universal joint etc.
Drive disk assembly, constitute car load power-driven system, its have system highly integrated, reduce layout take up room little, greatly subtract
Having lacked the advantages such as arrangement difficulty, the battery arrangement especially for pure electric vehicle provides sufficient space；On the other hand, originally
Invention achieves the purpose of light-weight design.
(2) present invention is by using the motor shaft of hollow, it is achieved that motor and wheel coaxially arranged, and semiaxis is from motor shaft
In pass, greatly reduce the volume of whole drive axle and decrease amount of parts.
(3) present invention uses planetary gear as decelerator so that electric drive axle achieves under the least steric requirements
Bigger gear ratio, greatly reduces motor radial dimension.
(4) in the present invention, planetary reducer uses double-pinion planetary wheel construction, reduces planetary gear speed-reduction further
Bulk shared by device.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the partial schematic diagram of the present invention.
Wherein the title corresponding to reference is as follows: 1-drives motor, and 2-crosses semiaxis, 3-differential mechanism, 4-motor
Axle, 5-planetary reduction gear sun gear, 6-planetary reduction gear two-stage planet wheel, 7-planetary reduction gear external toothing, 8-electric motor end cap, 9-
Planetary gear rotating shaft fixed mount, 10-differential mechanism shell, 11-semiaxis axle housing.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings, and embodiments of the present invention include but not limited to
The following example.
Embodiment 1
As shown in Figure 1, 2, present embodiments provide a kind of integrated electric drive axle, be simply simply mechanically fixed with prior art
Unlike integrated, this integrated electric drive axle will drive motor, decelerator, bearing bridge height integrated, greatly subtract
Having lacked arrangement difficulty, the battery arrangement especially for pure electric vehicle provides adequate space.
A kind of integrated electric drive axle specifically includes that driving motor, crosses semiaxis, differential mechanism, motor shaft, planetary reduction gear
Sun gear, planetary reduction gear two-stage planet wheel, planetary reduction gear external toothing, electric motor end cap, planetary gear rotating shaft fixed mount, differential mechanism
Shell, semiaxis axle housing；The material of each parts is not particularly limited by the present embodiment, and it can use at present commonly used in the art
Material, it would however also be possible to employ other meets the material of regulation.Being described below of each parts:
Drive motor, for providing the power of driving, drive motor can use current electric motor car conventional use of driving motor or
It is applied to other driving motors of electric automobiles, is not particularly limited at this.
Differential mechanism, makes left and right (or forward and backward) driving wheel realize the mechanism rotated with different rotating speeds, in the present embodiment, poor
Speed device can use existing ripe differential design, and and therefore not to repeat here.
Differential mechanism shell, with differential mechanism with the use of, main support also protects differential mechanism.
Motor shaft, drives motor output power to be passed by motor shaft；Unlike existing conventional motor axle, this
In embodiment, motor shaft uses hollow structure, passes for crossing semiaxis.
Crossing semiaxis, refer to be horizontally through the semiaxis of integrated electric drive axle, it is used for connected with differential and driving wheel, with
Power is transferred to driving wheel；Cross semiaxis from motor shaft hollow part through being connected with differential mechanism.In the present embodiment, drive
Motor and to cross semiaxis the most horizontal, and the two can relatively rotate.
Semiaxis axle housing, with semiaxis matched design, is used for supporting and protecting semiaxis, and semiaxis axle housing should have enough intensity with just
Degree, quality is little and is beneficial to dismounting.In the present embodiment, the combination of motor, differential mechanism shell, semiaxis axle housing is driven to constitute electric drive axle
Axle housing.
Planetary reduction gear sun gear, planetary reduction gear two-stage planet wheel and planetary reduction gear external toothing constitute planetary reduction gear
Device.Planetary reduction gear sun gear is connected with motor shaft, and planetary reduction gear two-stage planet wheel is fixed on driving motor, planetary reduction gear
Device external toothing is fixed on differential mechanism；Planetary reduction gear two-stage planet wheel is fixed on by electric motor end cap and planet wheel spindle fixed mount
Drive on motor.In the present embodiment, use planetary reduction gear two-stage planet wheel, thus, reduce planetary reduction gear further
Shared bulk.
In the present embodiment, each parts of planetary reduction gear are as follows with the annexation of remaining part: planetary reduction gear sun gear with
Motor shaft connects, and planetary reduction gear two-stage planet wheel is fixed on driving motor, and planetary reduction gear external toothing is fixed on differential mechanism
On.Planetary reduction gear two-stage planet wheel is fixed on driving motor by electric motor end cap and planet wheel spindle fixed mount.By above-mentioned
Arrange, use planetary gear as decelerator so that electric drive axle achieves bigger gear ratio under the least steric requirements,
Greatly reduce motor radial dimension.
Use the integrated electric drive axle disclosed in the present embodiment, when normal vehicle operation, drive motor by driving force
Passing to planetary reducer sun gear by motor shaft, planetary reducer sun gear imparts power to planetary reduction gear
Device two-stage planet wheel, planetary reduction gear two-stage planet wheel imparts power to planetary reduction gear external toothing, planetary reduction gear external tooth
Astragal moves differential mechanism rotating, and differential mechanism imparts power to wheel by crossing semiaxis, thus realizes driving vehicle to advance or falling
The function moved back.
Integrated electric drive axle realize principle: drive motor to form electric drive together with differential mechanism shell, semiaxis axle housing
Axle shell, the motor shaft of hollow makes the power of differential mechanism can be delivered to driving wheel by crossing semiaxis, and motor shaft is also capable
The input of star decelerator, power by drive motor, planetary reduction gear, differential mechanism, cross semiaxis, driving wheel transmits.
Embodiment 2
The present embodiment difference from embodiment 1 is, is replaced with by the planetary reduction gear two-stage planet wheel in planetary reduction gear
Planetary reduction gear single-stage planetary is taken turns, and mates with this, can use the driving motor that size is bigger, and increase drive axle body
Long-pending.
Embodiment 3
The present embodiment difference from embodiment 1 is, planetary reduction gear sun gear is connected with motor shaft, planetary reduction gear twin-stage
Planetary gear is fixed on driving motor by electric motor end cap and planet wheel spindle fixed mount, and planetary reduction gear external toothing is fixed, differential
Device is fixed with planet wheel spindle fixed mount.Such scheme simply changes the occupation mode of planetary reduction gear, not in principle
Change.
According to above-described embodiment, the present invention just can be realized well.What deserves to be explained is, set based on said structure or method
On the premise of meter, for solving same technical problem, even if some made in the present invention are without substantial change or polishing,
The essence of the technical scheme used is still as the present invention, therefore it should also be as within the scope of the present invention.
Claims (7)
1. an integrated electric drive axle, it is characterised in that including: drive motor (1), motor shaft (4), cross semiaxis (2), poor
Speed device (3) crosses the semiaxis axle housing (11) that semiaxis (2) mates, and planetary reduction gear with described；
Described driving motor (1), the differential mechanism shell (10) of described differential mechanism (3), described semiaxis axle housing (11) combination constitute electricity
Drive axle housing；
Described motor shaft (4) is hollow structure, described in cross semiaxis (2) and extend there through and be connected with described differential mechanism (3)；Described electricity
Power is transferred to described planetary reduction gear by arbor (4), and described planetary reduction gear drives described differential mechanism rotating.
Integrated electric drive axle the most according to claim 1, it is characterised in that described planetary reduction gear includes planetary reduction gear
Device sun gear (5), planetary reduction gear two-stage planet wheel (6) and planetary reduction gear external toothing (7).
Integrated electric drive axle the most according to claim 2, it is characterised in that described planetary reduction gear sun gear (5) with
Described motor shaft (4) connects, and described planetary reduction gear two-stage planet wheel (6) is fixed on described driving motor (1), described planet
Decelerator external toothing (7) is fixed on the tooth rest of described differential mechanism (3).
Integrated electric drive axle the most according to claim 3, it is characterised in that described planetary reduction gear two-stage planet wheel
(6) it is fixed on described driving motor (1) by electric motor end cap (8) and planet wheel spindle fixed mount (9).
Integrated electric drive axle the most according to claim 2, it is characterised in that described planetary reduction gear sun gear (5) with
Described motor shaft (4) connects, and described planetary reduction gear two-stage planet wheel (6) passes through electric motor end cap (8) and planet wheel spindle fixed mount
(9) being fixed on described driving motor (1), the tooth rest of described planetary reduction gear external toothing (7) and differential mechanism (3) is fixed.
Integrated electric drive axle the most according to claim 1, it is characterised in that described driving motor (1) is crossed with described
Semiaxis (2) is the most horizontal, and the two can relatively rotate.
Integrated electric drive axle the most according to claim 2, it is characterised in that by described planetary reduction gear two-stage planet wheel
(6) planetary reduction gear single-stage planetary wheel is replaced with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610787860.3A CN106274459A (en) | 2016-08-31 | 2016-08-31 | A kind of integrated electric drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610787860.3A CN106274459A (en) | 2016-08-31 | 2016-08-31 | A kind of integrated electric drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106274459A true CN106274459A (en) | 2017-01-04 |
Family
ID=57672687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610787860.3A Pending CN106274459A (en) | 2016-08-31 | 2016-08-31 | A kind of integrated electric drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106274459A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740020A (en) * | 2017-02-16 | 2017-05-31 | 重庆大学 | Electric motor car deceleration, differential integrated driving rear axle assy |
| CN110486450A (en) * | 2019-08-13 | 2019-11-22 | 一汽解放汽车有限公司 | A kind of drive axle reducer of integrated motor |
| CN111043284A (en) * | 2019-12-24 | 2020-04-21 | 广西汽车集团有限公司 | Electric drive axle of double-stage planetary gear reducer |
| DE102022002656A1 (en) | 2021-09-06 | 2023-03-09 | Sew-Eurodrive Gmbh & Co Kg | Transmission with a first planetary gear stage |
| WO2023030677A1 (en) * | 2021-09-06 | 2023-03-09 | Sew-Eurodrive Gmbh & Co. Kg | Transmission having a second planetary gear stage |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202573765U (en) * | 2012-04-23 | 2012-12-05 | 石传龙 | Driving device for full electric vehicle |
| CN103192702A (en) * | 2013-04-24 | 2013-07-10 | 十堰鸿孝电动车桥有限公司 | Integrated drive power assembly and drive axle assembly for electric vehicles |
| CN103832211A (en) * | 2014-02-25 | 2014-06-04 | 武汉新能车桥技术发展有限公司 | Centrally-arranged motor drive axle |
| CN205022296U (en) * | 2015-09-15 | 2016-02-10 | 韶能集团韶关宏大齿轮有限公司 | With motor and planet gear and coaxial integrated electric drive bridge of differential mechanism |
| CN205951712U (en) * | 2016-08-31 | 2017-02-15 | 成都雅骏新能源汽车科技股份有限公司 | Integrated form electric drive axle |
-
2016
- 2016-08-31 CN CN201610787860.3A patent/CN106274459A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202573765U (en) * | 2012-04-23 | 2012-12-05 | 石传龙 | Driving device for full electric vehicle |
| CN103192702A (en) * | 2013-04-24 | 2013-07-10 | 十堰鸿孝电动车桥有限公司 | Integrated drive power assembly and drive axle assembly for electric vehicles |
| CN103832211A (en) * | 2014-02-25 | 2014-06-04 | 武汉新能车桥技术发展有限公司 | Centrally-arranged motor drive axle |
| CN205022296U (en) * | 2015-09-15 | 2016-02-10 | 韶能集团韶关宏大齿轮有限公司 | With motor and planet gear and coaxial integrated electric drive bridge of differential mechanism |
| CN205951712U (en) * | 2016-08-31 | 2017-02-15 | 成都雅骏新能源汽车科技股份有限公司 | Integrated form electric drive axle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740020A (en) * | 2017-02-16 | 2017-05-31 | 重庆大学 | Electric motor car deceleration, differential integrated driving rear axle assy |
| CN110486450A (en) * | 2019-08-13 | 2019-11-22 | 一汽解放汽车有限公司 | A kind of drive axle reducer of integrated motor |
| CN111043284A (en) * | 2019-12-24 | 2020-04-21 | 广西汽车集团有限公司 | Electric drive axle of double-stage planetary gear reducer |
| DE102022002656A1 (en) | 2021-09-06 | 2023-03-09 | Sew-Eurodrive Gmbh & Co Kg | Transmission with a first planetary gear stage |
| WO2023030676A1 (en) | 2021-09-06 | 2023-03-09 | Sew-Eurodrive Gmbh & Co. Kg | Transmission having a first planetary gear stage |
| WO2023030677A1 (en) * | 2021-09-06 | 2023-03-09 | Sew-Eurodrive Gmbh & Co. Kg | Transmission having a second planetary gear stage |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |