CN108284710A - Electric axle for motor vehicle - Google Patents
Electric axle for motor vehicle Download PDFInfo
- Publication number
- CN108284710A CN108284710A CN201711283804.7A CN201711283804A CN108284710A CN 108284710 A CN108284710 A CN 108284710A CN 201711283804 A CN201711283804 A CN 201711283804A CN 108284710 A CN108284710 A CN 108284710A
- Authority
- CN
- China
- Prior art keywords
- axis
- motor
- roller gear
- retarder
- electric axle
- 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
- 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
- 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
- B60B35/16—Axle housings
- B60B35/163—Axle housings characterised by specific shape of the housing, e.g. adaptations to give space for other vehicle elements like chassis or exhaust system
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Retarders (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The present invention relates to a kind of electric axles for motor vehicle.The electric axle includes：Motor, with first axle；Further include retarder comprising the second axis, third axis and roller gear device, the roller gear device, which has, is separately mounted to second axis and the first roller gear on the third axis and the second roller gear, the third axis and first axis connection.The electric axle of the present invention has the advantages that compact-sized, small, light-weight, easy for installation and reliable operation.
Description
Technical field
The present invention relates to automotive fields, more particularly, to the electric axle for motor vehicle.
Background technology
Currently, based on environmental-friendly demand, people are more likely to selection using motor to replace needing fossil fuel
Internal combustion engine for drive motor vehicle.In this motor vehicle using motor, the electric axle of use includes electricity
Motivation, retarder and differential mechanism.Motor and retarder are two units independent of each other, also, the output shaft one of motor
As by way of mechanical connection (for example, spline fitted) be connected to the input shaft of retarder, keep the output torque of motor logical
Wheel is passed to after crossing retarder amplification.In this case, transmission system volume bigger than normal, weight weighting, cost are often resulted in
Higher and motor declines with the matching precision after gear-box assembling, is unfavorable for the reliably working of electric axle.
Therefore, it is necessary to a kind of compact-sized, small, light-weight, easy for installation and reliable operation electric axles.
Invention content
The object of the present invention is to provide a kind of compact-sized, small, light-weight, easy for installation and reliable operation electronic
Vehicle bridge.
The present invention provides a kind of electric axle for motor vehicle comprising：
Motor, with first axle；
Further include retarder comprising the second axis, third axis and roller gear device, the roller gear device, which has, to be divided
Not An Zhuan second axis and the first roller gear on the third axis and the second roller gear, the third axis with it is described
First axis connection.
According to an embodiment of the invention, electric axle of the invention further includes the differential mechanism being connect with the retarder, institute
It states retarder and the differential mechanism is arranged in the space of two planes bounds where two end side surfaces of the first axle.
According to an embodiment of the invention, the first axle and the third axis connected to it are integrally molded so as an axis.
According to an embodiment of the invention, the differential mechanism is connected to the retarder by the engagement between gear.
According to an embodiment of the invention, electric axle of the invention further include accommodate the motor, the retarder and
The first shell of the differential mechanism.
According to an embodiment of the invention, the motor includes second shell, the first shell and the second shell
It is integrally formed.
According to an embodiment of the invention, first roller gear and second roller gear are helical gear.
According to an embodiment of the invention, the differential mechanism is connected to the wheel of motor vehicle by the engagement between gear.
The electric axle of the present invention has the advantages that compact-sized, small, light-weight, easy for installation and reliable operation.
Description of the drawings
Fig. 1 is the schematic diagram of the electric axle according to the present invention for motor vehicle.
Specific implementation mode
The specific implementation mode of electric axle according to the present invention for motor vehicle is described below with reference to attached drawing.Below
The detailed description and the accompanying drawings for illustratively illustrating the principle of the present invention, the present invention is not limited to described preferred embodiment,
Protection scope of the present invention is defined by the claims.
In addition, space correlation term ("upper", "lower", " left side " and " right side " etc.) for describe element shown in the drawings with
The relative position relation of another element.Therefore, when space correlation term can be applied to use not with direction shown in the drawings
In same direction.Obviously, although all these space correlation terms refer to direction shown in the drawings for ease of explanation,
It is skilled artisans appreciate that the direction different from direction shown in attached drawing can be used.
Fig. 1 is the schematic diagram of the electric axle according to the present invention for motor vehicle.Basis is discussed in detail referring to Fig. 1
The electric axle for motor vehicle of the present invention.
As shown in Figure 1, the electric axle 10 according to the present invention for motor vehicle includes motor 100,200 and of retarder
Differential mechanism 300.
There is motor 100 first axle, the first axle to be used with output driving torque as the output shaft of motor 100.
Retarder 200 includes the second axis 2001, third axis and roller gear device, which makes as the input shaft of retarder 200
The driving torque exported with, motor 100 is transmitted to retarder 200 by the second axis, also, first axle and connected to it the
Three-axis integrative is shaped to an axis 1001, and in other words, the output shaft of motor 100 and the input shaft of retarder 200 are integrally formed
For an axis 1001, in this case, roller gear device includes the first roller gear 2003 and the second roller gear 2002, the
One roller gear 2003 is mounted on the second axis 2001 to be rotated together with the second axis 2001, and the second roller gear 2002 is mounted on
To be rotated together with axis 1001 on axis 1001, motor 100 by the first roller gear 2003 and the second roller gear 2002 it
Between engagement driving torque is transmitted to retarder 200.The electric axle of the present invention further includes the differential being connect with retarder 200
Device 300, the differential mechanism 300 are connected to the second axis 2001 by the engagement between gear (that is, gear 3001 and gear 3002), should
Differential mechanism 300 is used to distribute driving torque by axial two wheels of two outputs.
Electric axle according to the present invention further includes the first shell for accommodating motor 100, retarder 200 and differential mechanism 300
Body, motor 100 itself includes second shell, and first shell and second shell are integrally molded so as shell 400.Specifically,
The end cap of motor 2 is used as a part for the end plate of the babinet of retarder 200 simultaneously, to realize the shell and retarder of motor
Both shells integrated molding.
In addition, as shown in Figure 1, retarder 200 and differential mechanism 300 are arranged in two where two end side surfaces of axis 1001
In the space of planes bound, specifically, retarder 200 and differential mechanism 300 are arranged in the left end side and right end side of axis 1001
In the space of two planes bounds at place, also, motor 100, retarder 200 and differential mechanism 300 are in the radial direction (side Y
To) on be sequentially arranged, that is, both retarder 200 and differential mechanism 300 are arranged in the lower section of motor 100.
The operation principle of electric axle according to the present invention introduced below.
With continued reference to Fig. 1, the moderating process of retarder 200 is：The output shaft of motor 100 is used as retarder 200 simultaneously
Input shaft use, after motor 100 is started to work, mounted on motor 100 axis 1001 on the second roller gear
2002 engagements are mounted on the first roller gear 2003 on the second axis 2001 and drive the rotation of the first roller gear 2003, and second
Axis 2001 and the first roller gear 2003 are rotated and are rotated with moving gear 3002 by output gear 3001 thereon, tooth together
Wheel 3002 drives differential mechanism 300 to rotate, and is achieved in and amplifies the speed reduction of motor output, torque and pass to differential
Device 300.Differential mechanism 300 is connect with two wheels so that power is transmitted on wheel.
In electric axle according to the present invention, the input shaft of the output shaft and retarder 200 of motor 100 is integrally molded so as
One axis；Motor 100, retarder 200 and differential mechanism 300 are sequentially arranged in the Y direction；Also, motor 100, retarder
200 and differential mechanism 300 share a shell.Therefore, electric axle according to the present invention improves integration degree, significantly drops
The low volume and weight of transmission system reduces the number of parts used and intermediate assembling link, to improve power train
The matching precision of system.Therefore, electric axle according to the present invention is compact-sized, small, light-weight, easy for installation and work
Reliably.
In the present embodiment, power train is double reduction, however according to specific design requirement, those skilled in the art's energy
Enough other step of reduction of selection.
Specifically, the second roller gear 2002 is connected to for example, by spline housing on axis 1001, to be rotated simultaneously with axis 1001,
And by way of gear engagement, transmit rotary movement to the first roller gear 2003.First roller gear 2003 is socketed
Onto the second axis 2001, it is provided on the second axis 2001 and 3002 meshed gears 3001 of the gear of differential mechanism 300.In the situation
Under, the number of teeth of the first roller gear 2003 is more than the number of teeth of the second roller gear 2002, by the first roller gear 2003 and second
Roller gear 2002 realizes that the first order is slowed down, also, the number of teeth of the gear 3002 of differential mechanism 300 is also greater than the tooth on gear 3001
Number realizes that the second level is slowed down by gear 3001 and 3002.
According to an embodiment of the invention, the both ends of the second axis 2001 are supported by bearing stablizes rotation to realize, for example, the
A conical bearing is respectively arranged to support in the both ends of two axis 2001.Also, it is abutted against in the bearing block of conical bearing and shell 400
Two bearing surfaces of correspondence between, setting adjust pad to adjust the clearance for the conical bearing installed on the second axis 2001, to carry
High traveling comfort.
According to an embodiment of the invention, the first roller gear 2003 and the second roller gear 2002 are helical gear.
According to an embodiment of the invention, differential mechanism 300 is connected to the wheel of motor vehicle by the engagement between gear.
As previously mentioned, although exemplary embodiment of the present invention is illustrated by reference to attached drawing in explanation,
The present invention is not limited to above-mentioned specific implementation mode, protection scope of the present invention should be limited by claims and its equivalents
It is fixed.
Claims (8)
1. a kind of electric axle for motor vehicle comprising：
Motor, with first axle；
It is characterized in that,
Further include retarder comprising the second axis, third axis and roller gear device, the roller gear device has pacifies respectively
The first roller gear on second axis and the third axis and the second roller gear, the third axis and described first
Axis connection.
2. electric axle according to claim 1, wherein further include the differential mechanism being connect with the retarder, it is described to subtract
Fast device and the differential mechanism are arranged in the space of two planes bounds where two end side surfaces of the first axle.
3. electric axle according to claim 2, wherein the first axle and the three-axis integrative connected to it at
Type is an axis.
4. electric axle according to claim 3, wherein the differential mechanism is connected to described by the engagement between gear
Retarder.
5. electric axle according to claim 4, wherein further include accommodating the motor, the retarder and described
The first shell of differential mechanism.
6. electric axle according to claim 5, wherein the motor includes second shell, the first shell and
The second shell is integrally formed.
7. electric axle according to claim 6, wherein first roller gear and second roller gear are
Helical gear.
8. electric axle according to claim 7, wherein the differential mechanism is connected to motor-driven by the engagement between gear
The wheel of vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711283804.7A CN108284710A (en) | 2017-12-07 | 2017-12-07 | Electric axle for motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711283804.7A CN108284710A (en) | 2017-12-07 | 2017-12-07 | Electric axle for motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108284710A true CN108284710A (en) | 2018-07-17 |
Family
ID=62831868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711283804.7A Pending CN108284710A (en) | 2017-12-07 | 2017-12-07 | Electric axle for motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108284710A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113302416A (en) * | 2019-01-16 | 2021-08-24 | 舍弗勒技术股份两合公司 | Dry dual clutch for electric axle and electric axle comprising same |
-
2017
- 2017-12-07 CN CN201711283804.7A patent/CN108284710A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113302416A (en) * | 2019-01-16 | 2021-08-24 | 舍弗勒技术股份两合公司 | Dry dual clutch for electric axle and electric axle comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180717 |