CN106627120A - Electric axis driving system - Google Patents
Electric axis driving system Download PDFInfo
- Publication number
- CN106627120A CN106627120A CN201510732415.2A CN201510732415A CN106627120A CN 106627120 A CN106627120 A CN 106627120A CN 201510732415 A CN201510732415 A CN 201510732415A CN 106627120 A CN106627120 A CN 106627120A
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- CN
- China
- Prior art keywords
- gear
- shaft
- gears
- driving force
- 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
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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
Abstract
The invention discloses an electric axis driving system. The electric axis driving system is used for an electric vehicle or a hybrid power vehicle. The electric axis driving system comprises a motor, a retarding mechanism and a differential mechanism, the retarding mechanism amplifies driving force generated by the motor and distributes the driving force through the differential mechanism, wherein the retarding mechanism can selectively amplify the driving force through two gears with different transmission ratio with the help of a synchronizer, and transmits the driving force to a differential input gear of the differential mechanism through an output gear in a meshing mode, in the process from the driving force is generated to the driving force is transmitted to the differential input gear, the driving force is amplified through a set of a gear pair at a high gear and amplified through three sets of gear pairs at a low gear, and each gear pair is arranged on the same parallel axises. By replacing a planetary gear set with gear pairs matching a hollow shaft, an axial space demand can be reduced, moreover, a traditional synchronizer rather than a special synchronizer can be adopted, meanwhile, the overall structure is simpler, and the manufacturing cost is reduced while the performance is not affected.
Description
Technical field
The present invention relates to a kind of e-shaft drive system, more particularly to it is a kind of with the electric axis drive for simplifying decelerator
Dynamic system.
Background technology
The driven by power mode of electric automobile can be basically divided into central motor and drive and In-wheel motor driving two
Kind.The central motor drive system being made up of motor, fixed speed ratio decelerator and differential mechanism etc..At this
In planting drive system, due to no clutch and speed changer, therefore the body of mechanical driving device can be reduced
Product and quality.Central motor drive system can also have another kind of arrangement form, and it is with front-wheel drive, horizontal stroke
Arrangement form to the fuel-engined vehicle of front-mounted engine is similar, by motor, fixed speed ratio decelerator and difference
Fast device is integrated, and two semiaxis connect two driving moments, and this arrangement form is referred to as e-shaft drive system
System (eAxle drive systems), this arrangement form is on small-sized electric vehicle using most universal.Gu but
The decelerator of constant-speed ratio often limits applicable scope, and electric automobile due to traditional combustion engine automobile
Difference, it is impossible to directly using conventional gearbox again, it is therefore desirable to which the characteristics of taking into account electric automobile can expand
The e-shaft drive system of exhibition transmission speed ratio scope is the problem for needing to solve.
A kind of existing e-shaft drive system as shown in Figure 1 provides two different transmission speed ratios, electronic
The output power of machine 1 can be amplified respectively or directly by a synchronized 2 by planetary gearsets decelerator
It is delivered on differential mechanism 3.Under such structure, because the gear ratio of planetary gearsets is limited, decelerator
Fast ratio cannot be improved, so as to limit the amplification effect of the output power of motor 1.Also, overall structure
The complex installation difficulty that result in planetary gearsets increases, and for carrying out two synchronizations for keeping off selection
Device 2, due to needing oblique coupling and transmitting power, is not that conventional synchronizer just can be suitable for, and is met the requirements
The synchronized 2 with special oblique coupling surface manufacture difficulty itself it is big, further increased the electric axis and drive
The manufacturing cost of dynamic system.
Accordingly, it is desirable to provide it is a kind of with the e-shaft drive system of improved reducing gear solving above-mentioned asking
Topic.
The content of the invention
The problem that the present invention is solved is the reducer structure for simplifying e-shaft drive system.
To solve the above problems, the present invention provides a kind of e-shaft drive system, for electric automobile or mixing
Power vehicle, it includes motor, reducing gear and differential mechanism, and the reducing gear is by the motor
The driving force of generation is amplified and is assigned on wheel by differential mechanism, wherein the reducing gear can be by
Synchronized is amplified optionally through two gears with different gearratios pair to driving force, and
It is delivered on the differential input gear of the differential mechanism by output gear engagement, the driving force is from generation
To being passed on the differential input gear during, amplify through one group of gear mesh in high gear,
Amplify through three groups of gear mesh in low gear, each gear mesh is arranged at on a pair of parallel axis.
Compared with prior art, the present invention has advantages below：Hollow shaft is coordinated to substitute planet with gear mesh
Gear train can reduce axial space requirement, and can the non-special synchronization using traditional synchronized
Device, while overall structure is also simpler, keeps being dropped manufacturing cost under the premise of performance is impregnable
It is low.
Description of the drawings
Fig. 1 is e-shaft drive system schematic of the prior art；
Fig. 2 is the e-shaft drive system schematic of the first embodiment of the present invention；
Fig. 3 is the e-shaft drive system schematic of the second embodiment of the present invention.
Specific embodiment
As shown in Fig. 2 the e-shaft drive system of first embodiment of the invention includes motor 10, reductor
Structure 20 and differential mechanism 30.Wherein motor 10 has positioned at the stator of radial outside and positioned at described fixed
The rotor of sub- inner radial, is fixedly connected with motor output shaft 11, on motor output shaft 11 on the rotor
Motor output gear 12 with anti-torsion connection.
Reducing gear 20 includes input shaft 21 and output shaft 25, input shaft 21 and the electricity be arrangeding in parallel
Machine output shaft 11 is located on same geometrical axis, and synchronized 22, I gear gears 23 are set gradually thereon
With the first idler gear 24, I gear gear 23 by needle roller bearing support on the input shaft,
The input shaft 21 and the motor output gear 12 or an I are kept off gear by the synchronized 22
The connection of 23 anti-torsions ground, is fixed on the input shaft 21 anti-torsion of the first idler gear 24.
Successively anti-torsion ground arranges the second idler gear 26 and output gear 27 on the output shaft 25, and described the
Two idler gears 26 are engaged with first idler gear 24, form idler gear pair, the output shaft
Hollow shaft is additionally provided with 25, anti-torsion ground arranges the 2nd I gear gear 28 and the 3rd I gears in the hollow shaft
Gear 29, the 2nd I gear gears 28 are engaged with I gear gears 23, composition the first I gear teeth
Wheel is right, and the 3rd I gears gear 29 is engaged with the motor output gear 12, composition the 2nd I gear gears
Right, the hollow shaft is by needle roller bearing support on the output shaft 25.Differential mechanism 30 has and institute
The differential input gear 31 of the engagement of output gear 27 is stated, final gear mesh is constituted.
In the present embodiment, when the synchronized 22 makes motor output gear 12 synchronous with input shaft 21,
The power of motor 10 is amplified twice and is delivered to differential mechanism 30 on idler gear pair and final gear mesh
On, e-shaft drive system keeps off state in II；When the synchronized 22 make an I gear gear 23 with it is defeated
Enter axle 21 it is synchronous when, the power of motor 10 sequentially pass through the 2nd I gear gear mesh, I gear gear mesh,
Idler gear pair and final gear mesh, are amplified and are delivered on differential mechanism 30, e-shaft drive system by four times
State is kept off in I.When the synchronized 22 is in an intermediate position, e-shaft drive system is in neutral position state.
In the present embodiment, each gear mesh can coordinate hollow shaft preferably by helical gear with gear mesh
Substituting planetary gearsets can reduce axial space requirement, and can be using traditional synchronized rather than spy
Different synchronized, while overall structure is also simpler, keeps making to be manufactured under the premise of performance is impregnable
Originally it is reduced.
The second embodiment of the present invention is as shown in figure 3, e-shaft drive system includes motor 100, reductor
Structure 200 and differential mechanism 300.Wherein motor 100 has positioned at the stator of radial outside and positioned at described
The rotor of stator inner radial, is fixedly connected with motor output shaft 101, motor output shaft on the rotor
There is the motor output gear 102 of anti-torsion connection on 101.
The reducing gear 200 have the hollow input shaft 201 that is coaxially arranged and output shaft 207 and with
The motor output shaft 101 is located at the jackshaft 210 of same geometrical axis position, the hollow input shaft
201 and output shaft 207 diameter parallel that is located be located in the motor output shaft 101 and jackshaft 210
Axis, the hollow input shaft 201 can be rotated relative to output shaft 207, set successively thereon anti-torsion
Put the I of input gear 202 and the gear gears 203, the input gear 202 and the motor output gear
102 engagements, form input gear pair.Successively anti-torsion ground arranges the 2nd I gear teeth on the jackshaft 210
The I gear gears 205 of wheel 204 and the 3rd, the 2nd I gear gears 204 keep off gear 203 with an I
Engagement, forms I gear gear mesh.The 4th I gear gears are also rotatably arranged on the output shaft 207
206, it is engaged with the 3rd I gear gears 205, forms the 2nd I gear gear mesh.In the 4th I
Between gear gear 206 and hollow input shaft 201, synchronized 208 is also set up on output shaft 207, it is described same
Step device 208 is used for alternatively that the hollow input shaft 201 or the 4th I gear gears 206 is defeated with described
The connection of the anti-torsion of shaft 207 ground.Output gear 209 is additionally provided with the output shaft 207, with the differential
Differential input gear 301 on device 300 is engaged, and forms output gear pair.
In the present embodiment, when the synchronized 208 makes hollow input shaft 201 synchronous with output shaft 207
When, the power of motor 100 is amplified twice and is delivered to difference in input gear pair and output gear on
On fast device 300, e-shaft drive system keeps off state in II；When the synchronized 208 makes an I keep off tooth
When wheel 203 is synchronous with output shaft 207, the power of motor 100 sequentially passes through input gear, an I
Gear gear mesh, the 2nd I gear gear mesh and output gear pair, by four times differential mechanism 300 is amplified and is delivered to
On, e-shaft drive system keeps off state in I.When the synchronized 208 it is in an intermediate position, e-shaft drive
System is in neutral position state.
Although the present invention is only described with regard to some exemplary embodiments, these descriptions only should be shown in conduct
Example and be not construed as limiting.In the range of appended claims are recorded, without departing from spirit of the invention and
Under ambit, what various change was equally possible.
Claims (10)
1. a kind of e-shaft drive system, for electric automobile or hybrid vehicle, it include motor (10,
100), reducing gear (20,200) and differential mechanism (30,300), the reducing gear (20,200)
By the motor (10,100) produce driving force amplify and by differential mechanism (30,300) divide
Be fitted on wheel, wherein the reducing gear (20,200) can by synchronized (22,208)
The gear optionally through two with different gearratios is amplified to driving force, and by defeated
Go out gear (27,209) engagement be delivered to the differential mechanism (30, differential input gear 300) (31,
301) on, it is characterised in that：The driving force from producing to being passed to the differential input gear (31,
301) during on, amplify through one group of gear mesh in high gear, in low gear through three groups of gears
To amplifying, each gear mesh is arranged at on a pair of parallel axis.
2. e-shaft drive system as claimed in claim 1, it is characterised in that：The motor (10) has
Motor output shaft (11), the reducing gear (20) is with the input shaft (21) being arranged in parallel and defeated
Shaft (25), the input shaft (21) with the motor output shaft (11) on same axis,
Anti-torsion ground arranges synchronized (22) and the first idler gear (24) on the input shaft (21), with
And can relatively described input shaft between the synchronized (22) and first idler gear (24)
(21) I gears gear (23) of rotation, the synchronized (22) is alternatively defeated by the motor
Motor output gear (12) or an I gear gear (23) on shaft (11) is defeated with described
Enter the connection of axle (21) anti-torsion ground, anti-torsion ground arranges the second center tooth on the output shaft (25)
Wheel (26) and output gear (27), second idler gear (26) and first idler gear
(24) engage, constitute idler gear pair, the output gear (27) transfers power to the difference
On fast input gear (31).
3. e-shaft drive system as claimed in claim 2, it is characterised in that：On the output shaft (25) also
It is arranged the hollow shaft on the output shaft (25), anti-torsion in the hollow shaft by bearings
Be provided with the 2nd I gears gear (28) and the 3rd I gears gear (29), the 2nd I keeps off gear (28)
Engage with I gears gear (23), composition the first I gear gear mesh, the 3rd I keeps off gear
(29) engage with the motor output gear (12), composition the 2nd I gear gear mesh.
4. the e-shaft drive system as described in arbitrary in claims 1 to 3, it is characterised in that：Described each tooth
Wheel is spur gear or helical gear.
5. e-shaft drive system as claimed in claim 2 or claim 3, it is characterised in that：The driving force is described
Idler gear is to being exaggerated.
6. e-shaft drive system as claimed in claim 3, it is characterised in that：The driving force is described first
I keeps off gear mesh and the 2nd I gear gear mesh is exaggerated.
7. e-shaft drive system as claimed in claim 1, it is characterised in that：The motor (100) has
Motor output shaft (101) and motor output gear (102), the reducing gear (200) is with same
Hollow input shaft (201) and output shaft (207) that axle sleeve sets, also with the motor output shaft (101)
Jackshaft (210) on same axis, anti-torsion ground is arranged on the hollow input shaft (201)
Input gear (202) and I gears gear (203), it is antitorque successively on the output shaft (207)
Turn ground and synchronized (208) and output gear (209) are set, be additionally provided with the synchronized and output gear
Between rotatable 4th I gear gear (206), on the jackshaft (210) anti-torsion ground arrange
2nd I gears gear (204) and the 3rd I gears gear (205), the input gear (202) and institute
Motor output gear (102) engagement is stated, input gear pair, I gears gear (203) is formed
Engage with the 2nd I gears gear (204), form I gear gear mesh, the 4th I keeps off tooth
Wheel (206) is engaged with the 3rd I gears gear (205), forms the 2nd I gear gear mesh, described
Synchronized (208) can alternatively by I gears gear (203) or the 4th I gears gear (206)
It is connected with the output shaft (207) anti-torsion ground.
8. e-shaft drive system as claimed in claim 7, it is characterised in that：The driving force is in the input
Gear mesh is exaggerated.
9. e-shaft drive system as claimed in claim 8, it is characterised in that：The driving force is described first
I keeps off gear mesh and the 2nd I gear gear mesh is exaggerated.
10. the e-shaft drive system as described in arbitrary in claim 7 to 9, it is characterised in that：Described each tooth
Wheel is spur gear or helical gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510732415.2A CN106627120A (en) | 2015-11-02 | 2015-11-02 | Electric axis driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510732415.2A CN106627120A (en) | 2015-11-02 | 2015-11-02 | Electric axis driving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106627120A true CN106627120A (en) | 2017-05-10 |
Family
ID=58810627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510732415.2A Pending CN106627120A (en) | 2015-11-02 | 2015-11-02 | Electric axis driving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106627120A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385982A (en) * | 2018-04-18 | 2019-10-29 | 舍弗勒技术股份两合公司 | Bridge-drive system and the vehicles |
| CN111720527A (en) * | 2019-03-19 | 2020-09-29 | 爱信艾达株式会社 | Drive transmission device for vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1215841A (en) * | 1967-10-02 | 1970-12-16 | Verson Allsteel Press Co | Plural speed mechanical transmission systems |
| US5226339A (en) * | 1992-03-25 | 1993-07-13 | Chrysler Corporation | Two-speed transmission for use with electric powered vehicle |
| CN102748450A (en) * | 2012-07-02 | 2012-10-24 | 西南大学 | Mechanical intelligent adaptive two-gear multi-cam automatic speed change driver |
| CN202641339U (en) * | 2012-06-06 | 2013-01-02 | 北京汽车新能源汽车有限公司 | Twin-motor double-gear electric driving system |
| CN102878255A (en) * | 2012-09-29 | 2013-01-16 | 长城汽车股份有限公司 | Hybrid drive transmission system and hybrid drive automobile with same |
-
2015
- 2015-11-02 CN CN201510732415.2A patent/CN106627120A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1215841A (en) * | 1967-10-02 | 1970-12-16 | Verson Allsteel Press Co | Plural speed mechanical transmission systems |
| US5226339A (en) * | 1992-03-25 | 1993-07-13 | Chrysler Corporation | Two-speed transmission for use with electric powered vehicle |
| CN202641339U (en) * | 2012-06-06 | 2013-01-02 | 北京汽车新能源汽车有限公司 | Twin-motor double-gear electric driving system |
| CN102748450A (en) * | 2012-07-02 | 2012-10-24 | 西南大学 | Mechanical intelligent adaptive two-gear multi-cam automatic speed change driver |
| CN102878255A (en) * | 2012-09-29 | 2013-01-16 | 长城汽车股份有限公司 | Hybrid drive transmission system and hybrid drive automobile with same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385982A (en) * | 2018-04-18 | 2019-10-29 | 舍弗勒技术股份两合公司 | Bridge-drive system and the vehicles |
| CN111720527A (en) * | 2019-03-19 | 2020-09-29 | 爱信艾达株式会社 | Drive transmission device for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
|
| RJ01 | Rejection of invention patent application after publication |