CN206826407U - Two grades of transaxles of electric car - Google Patents
Two grades of transaxles of electric car Download PDFInfo
- Publication number
- CN206826407U CN206826407U CN201720756632.XU CN201720756632U CN206826407U CN 206826407 U CN206826407 U CN 206826407U CN 201720756632 U CN201720756632 U CN 201720756632U CN 206826407 U CN206826407 U CN 206826407U
- Authority
- CN
- China
- Prior art keywords
- gear
- axle
- grades
- transaxles
- planet carrier
- 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.)
- Expired - Fee Related
Links
Landscapes
- Retarders (AREA)
Abstract
A kind of two grades of transaxles of electric car are the utility model is related to, the drive axle includes：Two speed transmission, main reducing gear, differential mechanism, axle housing and two groups of wet friction clutches, two speed transmission are provided with sun gear, planetary gear, planet carrier and gear ring.The friction plate of one group of wet friction clutch controls ring gear against rotation by hydraulic way, another group of friction plate controls planet carrier and ring gear against rotation by hydraulic way, control the output of high low or first gear, gear ring connects firmly with axle housing, low-grade location exports, gear ring and planet carrier connect firmly, high tap position output, and then control the purpose of height gear.Drive axle beneficial effect described in the utility model is that the drive axle uses integral arrangement, replaces differential casing by differential mechanism support, makes drive axle structure compact, mitigates weight；Gear ring and the restricted situation of planet carrier are controlled with Wet-type friction slice so that the conversion of height gear is quick, and power interruption time is short, less demanding to electric machine speed regulation.
Description
Technical field
The utility model belongs to technical field of automobile transmission, and in particular to two grades of transaxles of electric car.
Background technology
Electric automobile is driven using motor, and required speed is reached by electric machine speed regulation.One fixation of generally use
The decelerator of speed reducing ratio carries out the matching of motor speed and moment of torsion and the vehicle wheel rotational speed and moment of torsion of vehicle driving requirements, due to it
Speed adjustable range is small, it is impossible to while meet the grade climbing performance requirement of the larger travel speed of vehicle and great slope.In electric automobile
In evolution, the appearance of transaxle, on the premise of cost is not increased, transmission efficiency is improved, enhances vehicle
Total quality and performance, electric automobile is realized from low speed to middle and high fast transformation.Therefore, the quality of drive axle performance is to whole
Car design and performance serve vital.
At present, it is for existing transaxle, involved two speed transmission planetary gear technical pattern and control
Unite increasingly complex, driving force commutates often, and efficiency reduces, and dismounting maintenance is more inconvenient.
As in the prior art, it is entitled variable that Chinese invention patent application publication number 106274461A discloses utility model
Speed driving bridge system, including motor and the differential mechanism and speed changer that are integrated in one, the speed changer include the first variable block
Group, the second variable block group, transmission input gear, the first power transmission shaft, and second driving shaft, the drive axle include differential input group
It is same parallel to the second driving shaft, the first variable block group and the motor with differential mechanism output group, first power transmission shaft
For axis connection on first power transmission shaft, the transmission input gear is coaxially connected in the described second biography with the second variable block group
On moving axis, and transmission input gear is engaged with differential mechanism output group and vertical connection, and transmission input gear is exported by differential mechanism
Group outputs power to wheel.Variable speed drive bridge system described in the utility model, using the speed changer of parallel axle construction, and
Speed changer is integrated into drive axle with differential mechanism using vertically arranged mode, effectively reduces the volume of system, and drive
Bridge has speed changing function.But variable speed drive bridge system structure is more complicated involved by the utility model, is unfavorable for use with tearing open
Dress is safeguarded.
And for example Chinese invention patent application publication number 106481745A discloses entitled two grades of speed change gears, electronic
Automobile primary drive system and secondary drive system, it includes：Input shaft, output shaft and the idle shaft be arrangeding in parallel, idle shaft are placed in
Between input shaft and output shaft；First gear, including intermeshing first driving gear and the first driven gear, and
The first one-way clutch coordinated with the first driving gear or the first driven gear, the first driving gear are placed on input shaft, the
One driven gear is placed on output shaft；Second gear, including the second driving gear being placed on input shaft, are placed in output shaft
On the second driven gear, the idle wheel being placed in idle shaft, and with the second driving gear, idle wheel or the second driven gear
The second one-way clutch coordinated；The speed reducing ratio of first gear is more than the speed reducing ratio of second gear.But
It is two grades of speed change gears and major-minor drive system and the structure of unreduced speed-changing driving device involved by the utility model, can not be
High efficiency drive power is provided in height gear shift process.
It follows that being based on the deficiencies in the prior art, lack a kind of shift logic and transaxle simple to operate, energy
Small number of component and relatively low cost are enough used, further simplifies maintenance difficulties and strengthens reliability.
Utility model content
The defects of in order to overcome prior art, the utility model provide a kind of two grades of transaxles of electric car, the drive
Dynamic bridge includes two speed transmission, main reducing gear, differential mechanism, axle housing and wet friction clutch.The drive axle uses monoblock type
Structure, two speed transmission, main reducing gear, differential mechanism are built in axle housing so that the drive axle it is compact-sized, be advantageous to
Mitigate the weight of the drive axle, and strengthen bearing capacity.Wherein, two speed transmission is primary planet decelerator, is provided with too
Positive wheel, planetary gear, planet carrier, gear ring, gear is controlled by the gear ring and planet carrier that set, reaches the conversion of height gear, it is wet
Formula friction clutch controls gear ring, planet carrier by hydraulic way, reaches gearshift purpose.Drive axle gearshift described in the utility model
When it is less demanding to electric machine speed regulation, can effectively save space, mitigate the weight of gear train so that gear shift is quick, power interruption
Time is short.
To achieve these goals, the drive axle includes：Two speed transmission, main reducing gear, differential mechanism, axle housing and two groups
Wet friction clutch；Two speed transmission is provided with sun gear, planetary gear, planet carrier and gear ring；Motor is fixed on axle housing, motor
Main shaft is connected with sun gear so that sun gear is driving wheel, input power；The input shaft phase of the main shaft of motor and two speed transmission
Even, planet carrier is set on the output shaft of two speed transmission, planet carrier is provided with main reducing gear drive bevel gear, and passes through main deceleration
Device driven wheel of differential is connected with differential mechanism support, and the planetary gear of differential mechanism is connected with the left half axle and right axle shaft of the drive axle,
Left half axle and right axle shaft both ends are provided with driving wheel；In two groups of wet friction clutches, one group of wet friction clutch therein
Friction plate ring gear against rotation is controlled by hydraulic way, the friction plate of another group of wet friction clutch controlled by hydraulic way
Planet carrier and ring gear against rotation, to control the output of high low or first gear, setting, low-grade location output, gear ring are connected firmly by gear ring and axle housing
Connected firmly with planet carrier, high tap position output, and then control the purpose of high tap position and low-grade location；
Further, motor, two speed transmission and the drive axle are horizontally installed on same plane；
Further, two speed transmission is primary planet decelerator；
Further, main reducing gear drive bevel gear is helical bevel gear；
Further, main reducing gear driven wheel of differential is helical bevel gear；
Further, the input shaft of the axis where the left half axle and right axle shaft of the drive axle and two speed transmission and defeated
Shaft is vertical；
Further, main reducing gear driven wheel of differential is solid forging structure with differential mechanism support or is bolted on
Together.
Drive axle described in the utility model has the beneficial effect that：
(1) the drive axle integral arrangement is compact-sized, is advantageous to mitigate drive axle weight；
(2) drive axle uses differential mechanism support, instead of traditional differential mechanism casing structure so that overall structure letter
It is single, material, technique and manufacturing cost are reduced, is advantageous to mitigate the weight of drive axle, and the versatility of enhancing part；
(3) main reducing gear of the drive axle uses planetary gear, controls gear ring and planet carrier using Wet-type friction slice, reaches
To the conversion of height gear so that gear shift is quick, and power interruption time is short, shifts gears less demanding to electric machine speed regulation；
(4) drive axle controls the output of high low or first gear using reversal valve so that shift logic with it is simple to operate.
Brief description of the drawings
Fig. 1 is drive axle structure schematic diagram described in the utility model；
Fig. 2 is the low-grade location drive system structure schematic diagram of drive axle described in the utility model；
Fig. 3 is the high tap position drive system structure schematic diagram of drive axle described in the utility model.
Wherein：1- motors, 2- double-direction gearpumps, 3- overflow valves, 4- reversal valves, 5- steel discs, 6- friction plates, the returns of 7- first
Spring；The return springs of 8- second, 9- sun gears, 10- planetary gears, 11- planet carriers, 12- gear rings, 13- supports, 14- main reducing gears
Drive bevel gear, 15- main reducing gear driven wheels of differential, 16- differential mechanisms, 17- right axle shafts, 18- left half axles, 19- driving wheels, 20-
Axle housing, 21- differential mechanism supports.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
The accompanying drawing of type, the embodiment for implementing the drive axle to the utility model are clearly and completely described.
As shown in Figures 1 to 3, the drive axle, including two speed transmission, main reducing gear, differential mechanism 16, axle housing 20 and two groups
Wet friction clutch；Two speed transmission is primary planet decelerator, provided with sun gear 9, planetary gear 10, planet carrier 11 and gear ring
12；Motor 1 is fixed on axle housing 20, and the main shaft of motor 1 is connected with the sun gear 9 of two speed transmission so that sun gear 9 is actively
Wheel, input power；The main shaft of motor 1 is connected with the input shaft of two speed transmission, and planet carrier is set on two speed transmission output shaft
11, main reducing gear drive bevel gear 14 is set on planet carrier 11, and passes through main reducing gear driven wheel of differential 15 and differential mechanism support
21 are connected, and the planetary gear of differential mechanism 16 is connected with the left half axle 18 and right axle shaft 17 of the drive axle, left half axle 18 and right axle shaft
17 both ends are provided with driving wheel 19, and main reducing gear drive bevel gear 14, main reducing gear driven wheel of differential 15 are helical bevel gear；
Together with main reducing gear driven wheel of differential 15 is solid forging structure or is bolted on differential mechanism support 21；The driving
Axis where the left half axle 18 and right axle shaft 17 of bridge is vertical with the input shaft and output shaft of two speed transmission；
Motor 1, two speed transmission are laterally set with the drive axle in same plane, and two speed transmission is rubbed using wet type
Pad 6 controls the planetary gear of height gear.
The friction plate 6 of one group of wet friction clutch in two groups of wet friction clutches controls gear ring by hydraulic way
12 rotate, and the friction plate 6 of another group of wet friction clutch controls planet carrier 11 and gear ring 12 to rotate by hydraulic way, controls
The output of high low or first gear, setting is connected firmly by gear ring 12 and axle housing 20, low-grade location output, gear ring 12 and planet carrier 11 connect firmly, high
Gear exports, and then controls the purpose of height gear.
Finally it should be noted that：Above example only illustrates the technical solution of the utility model, rather than its limitations；Although
The utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that, to preceding
State the technical solution described in embodiment to modify, or equivalent substitution is carried out to which part technical characteristic, and this
A little modifications are replaced, and corresponding technical scheme is departed from technical solution described by the utility model embodiment
Spirit and scope.
Claims (9)
- A kind of 1. two grades of transaxles of electric car, it is characterised in that：The drive axle includes：Two speed transmission, main reducing gear, Differential mechanism, axle housing and wet friction clutch；Two speed transmission is provided with sun gear, planetary gear, planet carrier and gear ring；Motor is fixed On axle housing, electric machine main shaft is connected with the sun gear of two speed transmission；Electric machine main shaft is connected with the input shaft of two speed transmission, and two Planet carrier is set on gear gearbox output shaft, planet carrier is provided with the drive bevel gear of main reducing gear, and by main reducing gear from Dynamic bevel gear is connected with differential mechanism support, and the planetary gear of differential mechanism is connected with the left half axle of drive axle and right axle shaft, left half axle Driving wheel is provided with right axle shaft both ends.
- 2. two grades of transaxles of electric car according to claim 1, it is characterised in that：Wet friction clutch quantity is Two groups；The friction plate of one group of wet friction clutch controls ring gear against rotation, another group of wet friction clutch by hydraulic way Friction plate planet carrier and ring gear against rotation are controlled by hydraulic way, control the output of high low or first gear.
- 3. two grades of transaxles of electric car according to claim 1, it is characterised in that：Motor, two speed transmission and institute Drive axle is stated laterally to set in same plane.
- 4. two grades of transaxles of electric car according to claim 1, it is characterised in that：Main reducing gear drive bevel gear, Main reducing gear driven wheel of differential is helical bevel gear.
- 5. two grades of transaxles of electric car according to claim 1, it is characterised in that：Two speed transmission is primary planet Decelerator.
- 6. two grades of transaxles of electric car according to claim 1, it is characterised in that：The left half axle of drive axle and right half Axis where axle is vertical with two speed transmission input and output shaft.
- 7. two grades of transaxles of electric car according to claim 2, it is characterised in that：Gear ring connects firmly setting with axle housing, Low-grade location exports；Gear ring and planet carrier connect firmly setting, high tap position output.
- 8. two grades of transaxles of electric car according to claim 1, it is characterised in that：Main reducing gear driven wheel of differential with Differential mechanism support is solid forging.
- 9. two grades of transaxles of electric car according to claim 1, it is characterised in that：Main reducing gear driven wheel of differential with Differential mechanism support is bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720756632.XU CN206826407U (en) | 2017-06-27 | 2017-06-27 | Two grades of transaxles of electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720756632.XU CN206826407U (en) | 2017-06-27 | 2017-06-27 | Two grades of transaxles of electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206826407U true CN206826407U (en) | 2018-01-02 |
Family
ID=60778105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720756632.XU Expired - Fee Related CN206826407U (en) | 2017-06-27 | 2017-06-27 | Two grades of transaxles of electric car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206826407U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139717A (en) * | 2017-06-27 | 2017-09-08 | 南京越博动力***股份有限公司 | Electric car two keeps off transaxle and its driving method |
| CN108361328A (en) * | 2018-01-25 | 2018-08-03 | 北京长城华冠汽车科技股份有限公司 | Drive axle speed change system |
| CN108583273A (en) * | 2018-03-27 | 2018-09-28 | 郑州智驱科技有限公司 | A kind of gear speed change electricity drive bridge of integrated form two of having electronic parking |
-
2017
- 2017-06-27 CN CN201720756632.XU patent/CN206826407U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139717A (en) * | 2017-06-27 | 2017-09-08 | 南京越博动力***股份有限公司 | Electric car two keeps off transaxle and its driving method |
| CN108361328A (en) * | 2018-01-25 | 2018-08-03 | 北京长城华冠汽车科技股份有限公司 | Drive axle speed change system |
| CN108583273A (en) * | 2018-03-27 | 2018-09-28 | 郑州智驱科技有限公司 | A kind of gear speed change electricity drive bridge of integrated form two of having electronic parking |
| CN108583273B (en) * | 2018-03-27 | 2021-08-17 | 郑州智驱科技有限公司 | Integrated two-gear variable-speed electric drive bridge with electronic parking function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106499790A (en) | A kind of coaxial-type bi-motor electric drive axle | |
| CN206394434U (en) | A kind of many gear automotive trannsmission systems of integrated single motor | |
| CN103587396A (en) | Power-driven automobile double-motor coupling drive system | |
| CN101408244B (en) | Mechanical hydraulic stepless speed changer and method and vehicle mechanical hydraulic stepless speed changer | |
| CN207809033U (en) | Hybrid electric drive system and vehicle | |
| CN206826407U (en) | Two grades of transaxles of electric car | |
| CN107139717A (en) | Electric car two keeps off transaxle and its driving method | |
| CN206647505U (en) | Double sun gears input planetary structure | |
| CN206000959U (en) | A kind of electric drive axle system based on two shift transmissions | |
| CN105387156B (en) | The two-shift automatic speed variator that a kind of electric drive is used | |
| CN201322084Y (en) | Integrative electrical variable transmission based on planetary gear two-gear speed-change mechanism | |
| CN205997708U (en) | A kind of electric drive axle system based on single planetary row two shift transmission | |
| CN211335435U (en) | Double-motor integrated two-gear AMT double-speed parallel shaft secondary belt wheel side speed reduction electric drive axle | |
| CN206600423U (en) | Bi-motor continuous driving force couples gearbox | |
| CN110549847A (en) | Driving transmission device for automobile power system | |
| CN203543619U (en) | Double-motor coupling drive system of electric car | |
| WO2019227815A1 (en) | Hybrid power drive system | |
| CN109693529A (en) | A kind of hybrid power dedicated transmission | |
| CN206633803U (en) | Oil electric mixed dynamic drive system | |
| CN108454393A (en) | One kind two keeps off planet speed-change electric drive axle assembly | |
| CN205553895U (en) | High -power engineering vehicle's hybrid gearbox | |
| CN109203986B (en) | Two-gear electric drive transmission device | |
| CN206830742U (en) | Double speed arrangement of clutch with reversing clutch function | |
| CN106286781A (en) | Double drive two-shift automatic variable speed device | |
| CN104494425B (en) | A kind of variator with transfer case |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |