CN110281699A - Drive axle and vehicle - Google Patents
Drive axle and vehicle Download PDFInfo
- Publication number
- CN110281699A CN110281699A CN201910531885.0A CN201910531885A CN110281699A CN 110281699 A CN110281699 A CN 110281699A CN 201910531885 A CN201910531885 A CN 201910531885A CN 110281699 A CN110281699 A CN 110281699A
- Authority
- CN
- China
- Prior art keywords
- clutch
- gear
- drive axle
- driving mechanism
- semiaxis
- 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
- B60B35/125—Power-transmission from drive shaft to hub using gearings of the planetary 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
- B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
-
- 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
Abstract
This application discloses a kind of drive axle and vehicle, the drive axle includes: driving mechanism；Clutch；Planetary gear mechanism, the planetary gear mechanism includes first element, second element and third element, the first element is fixed, the second element and the third element are optionally connect with the driving mechanism power coupling by the clutch, and are deceleration transmission path from the third element to the second element；Differential mechanism, the input terminal of the differential mechanism are connect with the second element power coupling；First semiaxis and the second semiaxis, first semiaxis and second semiaxis are connected with the output end of the differential mechanism.The drive axle of the application, by the way that the power train of clutch engagement planetary gear mechanism is arranged, so that the transmission efficiency of drive axle is high, large carrying capacity, overall weight is lighter, helps to improve power performance and economy, and shift time is short, fast response time.
Description
Technical field
The application belongs to technical field of vehicle manufacture, in particular to a kind of drive axle and with the vehicle of the drive axle
?.
Background technique
As the cry of environmental protection is surging, the development of electric car is trend of the times.Electric car is mostly single on the market
Keep off retarder, i.e. driving motor is connected by single retarder that keeps off with differential mechanism, the drive axle of this form under high-speed working condition by
Relatively low in driving motor working efficiency, compared with the operating condition of city, continual mileage is obviously relatively low.To solve the above-mentioned problems,
In the related technology, some two gears drive axles are devised, but two gear drive axles in the related technology are using parallel-axes gears
Two gears are realized in cooperation transmission, and two gear drive axles of this structure type are in power train process, and transmission efficiency is low, bearing capacity
It is small, and overall weight is heavier, there are rooms for improvement.
Apply for content
The application aims to solve at least one of the technical problems existing in the prior art.
According to the drive axle of the embodiment of the present application, comprising: driving mechanism；Clutch；Planetary gear mechanism, the planet tooth
Taking turns mechanism includes first element, second element and third element, and the first element is fixed, the second element and the third
Element is optionally connect with the driving mechanism power coupling by the clutch, and from the third element to described
Second element is deceleration transmission path；Differential mechanism, the input terminal of the differential mechanism are connect with the second element power coupling；The
One semiaxis and the second semiaxis, first semiaxis and second semiaxis are connected with the output end of the differential mechanism.
The drive axle of the application, by the way that the power train of clutch engagement planetary gear mechanism is arranged, so that the biography of drive axle
Efficiency of movement is high, and large carrying capacity, overall weight is lighter, helps to improve power performance and economy, and shift time is short, rings
Answer speed fast.
The application also proposed a kind of vehicle, have above-mentioned drive axle.
Possessed advantage is identical compared with the existing technology with above-mentioned drive axle for the vehicle, and details are not described herein.
The additional aspect and advantage of the application will be set forth in part in the description, and will partially become from the following description
It obtains obviously, or recognized by the practice of the application.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the application will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of the drive axle of the application the first embodiment；
Fig. 2 is the structural schematic diagram of the drive axle of second of embodiment of the application.
Appended drawing reference:
Drive axle 100,
Driving motor stator 1, driving motor rotor 2, motor shaft 3, active part 4, the first secondary part 5, second is driven
Part 6, gear ring 7, planetary gear 8, planet carrier 9, sun gear 10, driving gear 11, driven gear 12, differential mechanism 13, the first semiaxis
14, the second semiaxis 15.
Specific embodiment
Embodiments herein is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the application, and should not be understood as the limitation to the application.
Below with reference to Fig. 1-Fig. 2 description according to the drive axle 100 of the embodiment of the present application.
Such as without special explanation, the front-rear direction in the application is the longitudinal direction of vehicle, i.e. X to；Left and right directions is vehicle
Transverse direction, i.e. Y-direction；Up and down direction is the vertical of vehicle, i.e. Z-direction.
As depicted in figs. 1 and 2, the drive axle 100 of the application includes: driving mechanism, clutch, planetary gear mechanism, difference
Fast device 13, the first semiaxis 14 and the second semiaxis 15.
Wherein, for driving mechanism for providing the driving force of vehicle to run, driving mechanism can be driving motor, such as Fig. 1 and
In embodiment shown in Fig. 2, driving mechanism may include driving motor stator 1, driving motor rotor 2, motor shaft 3, motor shaft 3
It is fixedly connected with driving motor rotor 2, driving motor rotor 2 can be rotated relative to driving motor stator 1.When driving mechanism is to drive
When dynamic motor, drive axle 100 is that electricity drives bridge.
Clutch includes clutch active part and clutch secondary part, clutch active part and clutch follower
The power coupling connection of clutch two sides component may be implemented in tap when closing, clutch active part and clutch follower tap
The disconnection of clutch two sides component may be implemented when conjunction.Clutch is generally in off-state under normal conditions, in actual execution
In, hydraulic or control motor control clutch engagement can be passed through.
Planetary gear mechanism includes first element, second element and third element, it is to be understood that planetary gear mechanism
Including gear ring 7, planetary gear 8, planet carrier 9, sun gear 10, first element, second element, third element and gear ring 7, planet carrier 9,
Sun gear 10 corresponds, it should be noted that one-to-one correspondence described herein is not to limit first element to be only gear ring
7, but say, first element, second element, one in third element be gear ring 7, one in planet carrier 9, sun gear 10,
It and is deceleration transmission path from third element to second element.
In embodiments herein, first element is fixed, second element by clutch optionally with driving machine
The connection of structure power coupling, third element optionally connects by clutch with driving mechanism power coupling, second element and
The input terminal power coupling of differential mechanism 13 connects.
It should be noted that second element and third element can not connect with driving mechanism power coupling, Huo Zhe
One in two element and third element connect with driving mechanism power coupling, but second element and third element cannot be simultaneously
It is connect with driving mechanism power coupling.
First semiaxis 14 and the second semiaxis 15 are connected with the output end of differential mechanism 13, and the first semiaxis 14 and the second semiaxis 15 divide
It is not located at the lateral two sides of differential mechanism 13.First semiaxis 14 and the second semiaxis 15 can be used for installing wheel, such as the first half
Axis 14 is for installing left wheel, and the second semiaxis 15 is for installing right wheel or the first semiaxis 14 for installing right wheel, and second
Semiaxis 15 is for installing left wheel.
The drive axle 100 of the application has a gear operating mode and second gear operating mode.
In a gear operating mode, second element and driving mechanism are disconnected, and third element passes through clutch and driving mechanism
Power coupling connection, --- --- third element --- second element --- is poor for clutch for power transfer path are as follows: driving mechanism
Fast device 13 --- the first semiaxis 14 and the second semiaxis 15.
Due to being deceleration transmission path from third element to second element, it is driven for large transmission ratio, the gear bottom gear, tool
There is the effect of reduction of speed torque increase, in this way in a gear operating mode, the driving motor of drive axle 100 may remain in high efficient area
Domain, the acceleration of drive axle 100, climbing capacity are strong, are effectively improved vehicle dynamic property.
In second gear operating mode, third element and driving mechanism are disconnected, and second element passes through clutch and driving mechanism
Power coupling connection, power transfer path are as follows: driving mechanism --- clutch --- second element --- differential mechanism 13 --- the
One semiaxis 14 and the second semiaxis 15.
Max. speed can be improved in the gear top gear, small speed ratio, in this way in second gear operating mode, drive axle 100
Driving motor may remain in high efficiency region, be effectively improved vehicle economy.
Above-mentioned gear switching only needs clutch can be completed, and shift time is shorter, it is not easy to lead to the problem of shift pause and transition in rhythm or melody.
The drive axle 100 of the application, by the way that the power train of clutch engagement planetary gear mechanism is arranged, so that drive axle
100 transmission efficiency is high, and large carrying capacity, overall weight is lighter, when helping to improve power performance and economy, and shifting gears
Between short, fast response time.
In some embodiments, clutch includes: the first sub- clutch and the second sub- clutch.Third element passes through first
Sub- clutch is optionally connect with driving mechanism power coupling；Second element by the second sub- clutch optionally with
The connection of driving mechanism power coupling.
Under normal conditions, the first sub- clutch and the second sub- clutch disconnect；When the first sub- clutch engagement, the second son from
When clutch disconnects, one gear operating mode of the incision of drive axle 100；When the second sub- clutch engagement, when the first sub- clutch disconnects, drive
Dynamic bridge 100 cuts second gear operating mode；First sub- clutch and the second sub- clutch can not simultaneously engage with.
In actual execution, as depicted in figs. 1 and 2, the first sub- clutch and the second sub- clutch are integrated into double clutches
Device, and double clutch includes: active part 4, the first secondary part 5, the second secondary part 6.Active part 4 and driving mechanism are dynamic
Power is of coupled connections, for example active part 4 is fixedly connected with motor shaft 3, and the first secondary part 5 connects with third element power coupling
It connects, the second secondary part 6 is connect with second element power coupling；Wherein the first secondary part 5 and the second secondary part 6 are optional
Engaged with active part 4 to selecting property, the corresponding first sub- clutch of the first secondary part 5, corresponding second son of the second secondary part 6 from
Clutch.
In some embodiments, as depicted in figs. 1 and 2, drive axle 100 further include: driving gear 11 and driven gear 12.
Driving gear 11 is fixedly connected with second element, and driven gear 12 is fixedly connected with the input terminal of differential mechanism 13, driven gear 12
It is engaged with driving gear 11.On the one hand, driving gear 11 and driven gear 12 are for realizing the defeated of second element and differential mechanism 13
Enter the connection at end, on the other hand, driving gear 11 and driven gear 12 can also increase the speed ratio of entire drive axle 100, improve master
The dynamic property of dynamic drive axle 100.
In some embodiments, as depicted in figs. 1 and 2, clutch and differential mechanism 13 are arranged in planetary gear mechanism
Axial two sides.In actual execution, planetary gear mechanism is arranged between clutch and driving gear 11, in this way can be with
Prevent different elements from interfering.
In some embodiments, as depicted in figs. 1 and 2, the axis of driving mechanism, the axis of clutch and planetary gear machine
The axis of structure is overlapped, and the axis of driving mechanism is parallel with the axis of differential mechanism 13.
In some embodiments, as depicted in figs. 1 and 2, second element is planet carrier 9, in first element and third element
One be gear ring 7, another in first element and third element is sun gear 10.
In the embodiment shown in fig. 1, first element is gear ring 7, and second element is planet carrier 9, and third element is the sun
Wheel 10；In a gear operating mode, the first secondary part 5 is engaged with active part 4, and the second secondary part 6 and active part 4 are disconnected
Open, power transfer path are as follows: driving mechanism --- --- the first secondary part 5 --- sun gear 10 --- planet of active part 4
Frame 9 --- driving gear 11 --- the first semiaxis 14 of driven gear 12 --- differential mechanism 13 --- and the second semiaxis 15；In second gear
In operating mode, the first secondary part 5 is disconnected with active part 4, and the second secondary part 6 is engaged with active part 4, power transmitting
Path are as follows: driving mechanism --- active part 4 --- the second secondary part 6 --- planet carrier 9 --- driving gear 11 --- from
The first semiaxis 14 of moving gear 12 --- differential mechanism 13 --- and the second semiaxis 15.
In the embodiment shown in Figure 2, first element is sun gear 10, and second element is planet carrier 9, and third element is tooth
Circle 7；In a gear operating mode, the first secondary part 5 is engaged with active part 4, and the second secondary part 6 and active part 4 are disconnected
Open, power transfer path are as follows: driving mechanism --- --- the first secondary part 5 --- gear ring 7 --- planet carrier of active part 4
9 --- driving gear 11 --- the first semiaxis 14 of driven gear 12 --- differential mechanism 13 --- and the second semiaxis 15；In second gear work
In operation mode, the first secondary part 5 is disconnected with active part 4, and the second secondary part 6 is engaged with active part 4, and power transmits road
--- --- --- planet carrier 9 --- driving gear 11 --- is driven for the second secondary part 6 for active part 4 for diameter are as follows: driving mechanism
The first semiaxis 14 of gear 12 --- differential mechanism 13 --- and the second semiaxis 15.
In conclusion drive axle 100 is integrated with driving mechanism, gear, differential in technical solution disclosed in the present application
The structures such as device 13, and the multivariant principle of planetary gear mechanism is utilized, cooperate double clutch, realizes two gear functions, both improved
Power transmission efficiency, can also reduce overall weight.
Disclosed herein as well is a kind of vehicles.
The vehicle of the application can have the drive axle 100 of any of the above-described kind of embodiment.The vehicle of the application, may be implemented
Two gear functions, power transmission efficiency is high, and overall weight is light.
The vehicle of the application can be electric car.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the application.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
While there has been shown and described that embodiments herein, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle and objective of the application, this
The range of application is defined by the claims and their equivalents.
Claims (10)
1. a kind of drive axle characterized by comprising
Driving mechanism；
Clutch；
Planetary gear mechanism, the planetary gear mechanism include first element, second element and third element, the first element
It is fixed, the second element and the third element by the clutch optionally with the driving mechanism power coupling
Connection, and be deceleration transmission path from the third element to the second element；
Differential mechanism, the input terminal of the differential mechanism are connect with the second element power coupling；
First semiaxis and the second semiaxis, first semiaxis and second semiaxis are connected with the output end of the differential mechanism.
2. drive axle according to claim 1, which is characterized in that the drive axle has a gear operating mode and second gear work
Operation mode；
In a gear operating mode, the second element and the driving mechanism are disconnected, and the third element passes through the clutch
Device is connect with the driving mechanism power coupling；
In second gear operating mode, the third element and the driving mechanism are disconnected, and the second element passes through the clutch
Device is connect with the driving mechanism power coupling.
3. drive axle according to claim 1, which is characterized in that the second element is planet carrier, the first element
It is gear ring with one in the third element, another in the first element and the third element is sun gear.
4. drive axle according to any one of claim 1-3, which is characterized in that the clutch includes:
First sub- clutch, the third element by the described first sub- clutch optionally with the driving mechanism power
It is of coupled connections；
Second sub- clutch, the second element by the described second sub- clutch optionally with the driving mechanism power
It is of coupled connections.
5. drive axle according to claim 4, which is characterized in that the first sub- clutch and the second sub- clutch
It is integrated into double clutch, and includes:
Active part, the active part are connect with the driving mechanism power coupling；
First secondary part, first secondary part are connect with the third element power coupling；
Second secondary part, second secondary part are connect with the second element power coupling；Wherein
First secondary part and second secondary part are optionally engaged with the active part.
6. drive axle according to any one of claim 1-3, which is characterized in that further include:
Driving gear, the driving gear are fixedly connected with the second element；
Driven gear, the driven gear are fixedly connected with the input terminal of the differential mechanism, the driven gear and the active
Gear engagement.
7. drive axle according to any one of claim 1-3, which is characterized in that the clutch and the differential mechanism point
It is not arranged in the axial two sides of the planetary gear mechanism.
8. drive axle according to any one of claim 1-3, which is characterized in that the axis of the driving mechanism, described
The axis of clutch is overlapped with the axis of the planetary gear mechanism, the axis of the axis of the driving mechanism and the differential mechanism
In parallel.
9. drive axle according to any one of claim 1-3, which is characterized in that the driving mechanism is driving motor.
10. a kind of vehicle, which is characterized in that have drive axle as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910531885.0A CN110281699A (en) | 2019-06-19 | 2019-06-19 | Drive axle and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910531885.0A CN110281699A (en) | 2019-06-19 | 2019-06-19 | Drive axle and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110281699A true CN110281699A (en) | 2019-09-27 |
Family
ID=68004106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910531885.0A Pending CN110281699A (en) | 2019-06-19 | 2019-06-19 | Drive axle and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110281699A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070275808A1 (en) * | 2006-05-25 | 2007-11-29 | Aisin Aw Co., Ltd. | Hybrid drive device |
| CN104364109A (en) * | 2012-05-31 | 2015-02-18 | 罗伯特·博世有限公司 | Two-speed transmission and electric vehicle |
| CN205523681U (en) * | 2016-01-22 | 2016-08-31 | 吉林大学 | Electric drive axle based on single file star row |
| CN106004408A (en) * | 2016-06-28 | 2016-10-12 | 重庆大学 | Double-planetary-mechanism hybrid power automobile transmission system |
| CN106641130A (en) * | 2017-02-19 | 2017-05-10 | 郭克亚 | Planetary two-gear driving device and two-gear driving method thereof |
| CN107697061A (en) * | 2017-09-25 | 2018-02-16 | 奇瑞汽车股份有限公司 | Hybrid electric drive system and hybrid vehicle |
| CN107763153A (en) * | 2016-08-19 | 2018-03-06 | 罗伯特·博世有限公司 | The shift transmission of planetary gear type two for electric vehicle |
| CN109442014A (en) * | 2018-11-30 | 2019-03-08 | 浙江伊控动力系统有限公司 | Two speed transmission and method for changing speed for pure electric vehicle |
| CN109826947A (en) * | 2019-03-25 | 2019-05-31 | 上海蔚来汽车有限公司 | Speed change gear, shift control method, electric vehicle driving system and electric vehicle |
-
2019
- 2019-06-19 CN CN201910531885.0A patent/CN110281699A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070275808A1 (en) * | 2006-05-25 | 2007-11-29 | Aisin Aw Co., Ltd. | Hybrid drive device |
| CN104364109A (en) * | 2012-05-31 | 2015-02-18 | 罗伯特·博世有限公司 | Two-speed transmission and electric vehicle |
| CN205523681U (en) * | 2016-01-22 | 2016-08-31 | 吉林大学 | Electric drive axle based on single file star row |
| CN106004408A (en) * | 2016-06-28 | 2016-10-12 | 重庆大学 | Double-planetary-mechanism hybrid power automobile transmission system |
| CN107763153A (en) * | 2016-08-19 | 2018-03-06 | 罗伯特·博世有限公司 | The shift transmission of planetary gear type two for electric vehicle |
| CN106641130A (en) * | 2017-02-19 | 2017-05-10 | 郭克亚 | Planetary two-gear driving device and two-gear driving method thereof |
| CN107697061A (en) * | 2017-09-25 | 2018-02-16 | 奇瑞汽车股份有限公司 | Hybrid electric drive system and hybrid vehicle |
| CN109442014A (en) * | 2018-11-30 | 2019-03-08 | 浙江伊控动力系统有限公司 | Two speed transmission and method for changing speed for pure electric vehicle |
| CN109826947A (en) * | 2019-03-25 | 2019-05-31 | 上海蔚来汽车有限公司 | Speed change gear, shift control method, electric vehicle driving system and electric vehicle |
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Application publication date: 20190927 |
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