CN207500413U - Electric vehicle stepless speed change driving system - Google Patents
Electric vehicle stepless speed change driving system Download PDFInfo
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- CN207500413U CN207500413U CN201721508381.XU CN201721508381U CN207500413U CN 207500413 U CN207500413 U CN 207500413U CN 201721508381 U CN201721508381 U CN 201721508381U CN 207500413 U CN207500413 U CN 207500413U
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- driving motor
- gear
- electric vehicle
- planetary gear
- speed change
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Abstract
A kind of electric vehicle stepless speed change driving system of electric vehicle technical field, including：First driving motor, planetary gear train, the second driving motor and third output mechanism, wherein, planetary gear train is equipped with gear ring, planet stent, sun gear and several planetary gears, planetary gear is circumferentially distributed on planet stent, one of planet stent and gear ring engage with the output shaft of the second driving motor, another is engaged with third output mechanism, gear ring is engaged with planetary gear, and sun gear connect with the first driving motor output terminal and engaged with planetary gear.The utility model uses planetary gear speed reducing mechanism, and the rotation for driving planet stent or gear ring by the second driving motor reaches required reduction ratio, completes the variable speed of electric vehicle, realizes gearshift automation.
Description
Technical field
The utility model relates to a kind of technology in electric vehicle field, specifically a kind of electric vehicle variable speed is driven
Dynamic system.
Background technology
The existing electric vehicle overwhelming majority uses the retarder of fixed speed ratio in the market, without gear.Fixed speed
Than retarder, only there are one gears, and motor is allowed often to be in low efficiency region, has not only wasted the valuable energy content of battery, but also improve to traction
The requirement of motor is further reduced vehicle continual mileage.
Although some High Tier Brand electric vehicles employ gear, main is all the hand gear of fixed gear
Device, it is less to use contiuously variable transmission.Manual transmission is by the cooperation of gear set, and mechanism is complicated, and power is defeated during manual shift
Going out can interrupt.And contiuously variable transmission is transmitted using transmission belt and the ratchet of variable groove width into action edge, i.e., when ratchet changes groove width
When, the corresponding contact radius progress speed change for changing driving wheel and transmission belt on driven wheel, transmission belt is generally with rubber strip, metal tape
With metallic bond etc., but transmission belt is easy to damage, it is impossible to bear larger load.
In addition applied to the manual transmission in electric vehicle transmission and contiuously variable transmission volume are big, weight is heavy, manufacture
It is of high cost, it safeguards complexity, has raised the price of electric vehicle, constrain the universal of electric vehicle.
Utility model content
The utility model is directed to deficiencies of the prior art, it is proposed that a kind of electric vehicle variable speed driving system
System can complete the variable speed of electric vehicle by the way that the rotation of planet stent or gear ring is driven to reach required reduction ratio,
Realize gearshift automation.
The utility model is achieved through the following technical solutions：
The utility model includes：First driving motor, planetary gear train, the second driving motor and third output mechanism, wherein：
Planetary gear train is equipped with gear ring, planet stent, sun gear and several planetary gears, planetary gear and is circumferentially distributed on planet stent,
One of planet stent and gear ring engage with the output shaft of the second driving motor, it is another engaged with third output mechanism, gear ring and row
Star gear engages, and sun gear connect with the first driving motor output terminal and engaged with planetary gear as power primary input end.
Gear ring, planet stent and the sun gear is set on main shaft.
The third output mechanism is equipped with wheel shaft, and the drive shaft of the wheel shaft and electric vehicle uses spline or shaft coupling
It is fixedly connected.
First driving motor includes rotor assembly and wound stator, wherein, rotor assembly is equipped with rotor neck bush,
Preferably, rotor neck bush one end is fixed with sun gear.
Preferably, the output terminal of first driving motor is connected with sun gear by deceleration mechanism, the speed reducer
Structure is belt, any one in chain, gear drive.
Technique effect
Compared with prior art, the utility model uses planetary gear speed reducing mechanism, and planet branch is driven by the second driving motor
The rotation of frame or gear ring reaches required reduction ratio, completes the variable speed of electric vehicle, realizes gearshift automation, herein mistake
Shifting power does not interrupt in journey, can seamlessly transit, improve shift quality；At the same time the utility model have it is small,
The characteristics of light-weight, simple in structure, at low cost.
Description of the drawings
Fig. 1 is the electric vehicle schematic diagram based on the utility model；
Fig. 2 is stepless speed change driving system structure diagram in the utility model；
Fig. 3 is the stepless speed change driving system detonation configuration figure of embodiment 1；
Fig. 4 is the stepless speed change driving system sectional structure chart of embodiment 1；
Fig. 5 is planetary gear train and driving motor, structure diagram in embodiment 1；
Fig. 6 is planet stent and planetary gear construction schematic diagram in the utility model；
In figure：(a) it is overall structure diagram, (b) is detonation configuration figure；
Fig. 7 is rotor assembly structure schematic diagram in the utility model；
In figure：(a) it is detonation configuration figure, (b) cross-sectional view；
Fig. 8 is winding stator structure schematic diagram in the utility model；
Fig. 9 is the structure diagram of embodiment 2；
In figure：Planetary gear train case 1,61815 bearings 2,61905 bearings 3, gear ring 4,6204 bearings 5, the second driving motor
6th, third output mechanism 7, planetary gear train 8,6006 bearings 9, driving motor upper encloser 10, soket head cap screw 11,61808 bearings
12nd, sun gear 13, main shaft 14, rotor assembly 15,61804 bearings 16, wound stator 17,6304 bearings 18, driving motor lower cover
Shell 19, internal spline 20, axis clamp spring 21, rotation stop pin 22, planet stent 81,16004 bearings 82,61903 bearings 83, planetary gear
84th, stepless speed change driving system 100, rotor neck bush 151, rotor magnetic steel 152, rotor core 153.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Embodiment 1
Shown as shown in Figure 1, Figure 3 and Figure 4, the present embodiment is related to a kind of stepless speed change driving system 100, including：Main shaft 14,
One driving motor, planetary gear train 8, the second driving motor 6 and third output mechanism 7, wherein：Planetary gear train is arranged on main shaft 14
8, planetary gear train 8 is equipped with gear ring 4, planet stent 81, sun gear 13 and several planetary gears 84,4 and second driving motor 6 of gear ring
Output shaft gear engagement, planet stent 81 engages with third output mechanism 7, and gear ring 4 is engaged with planetary gear 84, sun gear 13
It connect and engages with planetary gear 84 as power primary input end with the first driving motor output terminal.
As shown in Figure 5 and Figure 6, planet stent 81 is set in main shaft 14 by 16004 bearings 82 in the planetary gear train 8
On；The planetary gear 84 is duplicate gear, and planet stent 81 is arranged on by 61903 bearings 83.
The third output mechanism 7 is equipped with wheel shaft, and the wheel shaft is equipped with internal spline 20, the drive shaft with electric vehicle
External splines engagement, driving electric vehicle movement.
As shown in Figure 2 and Figure 4, the planetary gear train 8, the second driving motor 6 and the first driving motor are arranged on housing
In three interior chambers；The housing includes：Planetary gear train case 1, the first driving motor upper encloser 10 and the first driving electricity
Machine lower encioser 19, wherein：First driving motor lower encioser 19 is stepped case, is internally provided with partition board, on the first driving motor
Case 10 is connect with the first driving motor lower encioser 19 forms the first driving motor chamber, and planetary gear train case 1 and first drives
Motor upper encloser 10 is fixedly connected to form planetary gear train chamber, the driving electricity of planetary gear train case 1, first by interior hexagonal spiral shell 11
The second driving motor chamber is formed between 10 and first driving motor lower encioser 19 of machine upper encloser.
The specification of the soket head cap screw 11 is M8*25.
The gear ring 4 is set in by 61815 bearings 2 in planetary gear train case 1,7 liang of the third output mechanism
End is arranged in planetary gear train case 1 by 61905 bearings 3, is arranged on the first driving motor upper cover by 6006 bearings 9 respectively
In shell 10.
As shown in Fig. 3, Fig. 4 and Fig. 8, the driving motor includes rotor assembly 15 and wound stator 17, wherein：Rotor
Assembly 15 is set in by 6204 bearings 5 on main shaft 14 by gear ring 4, and wound stator 17 is set on rotor assembly and one end
It is fixed in driving motor lower encioser 19, driving motor lower encioser 19 is set in by 6304 bearings 18 on main shaft 14.
The outer surface surrounding of the wound stator 17 is circumferentially evenly equipped with several rotation stop pins 22, prevents 17 stress of wound stator from turning
It is dynamic.
As shown in figs. 4 and 7, the rotor assembly 15 includes：Rotor neck bush 151, rotor magnetic steel 152 and rotor iron
Core 153, wherein：Rotor core 153 is arranged on rotor neck bush 151,153 inner circumferential of rotor core is evenly equipped with several rotors
Magnet steel 152,151 one end of rotor neck bush are fixed with sun gear 13, and the first driving motor upper encloser 10 passes through 12 sets of 61808 bearing
It is located on rotor neck bush 151,151 both ends of rotor neck bush are set in main shaft by 61804 bearings 16 and 6204 bearings 5 respectively
On 14.
The main shaft 14 is equipped with axis clamp spring 21 in 6204 bearings 5,16004 bearings 82 and 6304 bearing sides, so as to
The positioning of gear ring 4, planetary gear train 8, the first driving motor and the first driving motor lower encioser 19 is fixed；Axis clamp spring 21
Specification be
At work, the power of the first driving motor and the second driving motor 6 passes through 13 He of sun gear to the present embodiment respectively
Gear ring 4 is exported from planetary gear 84, and planet stent fluted disc 81 and third output mechanism 7 is successively driven to carry out power output；Pass through
The rotating of the second driving motor 6 and the speed of rotating speed are controlled, obtains not comparing at the same speed for planet stent fluted disc 81, is realized electronic
Vehicle variable speed.
Embodiment 2
As shown in figure 9, it is in place of the present embodiment and the difference of embodiment 1, second driving motor 6 and planet branch
Frame 81 engages, and the gear ring 4 is engaged with third output mechanism 7.
Second driving motor 6, third output mechanism 7 and planetary gear train 8 can also be combined by kinds of drive such as belts,
It is not limited to the engaged transmission of multi-stage gear.
It is emphasized that：The above is only the preferred embodiment of the present utility model, and not the utility model is appointed
What formal limitation, every any simple modification made according to the technical essence of the utility model to above example, etc.
With variation and modification, in the range of still falling within technical solutions of the utility model.
Claims (5)
1. a kind of electric vehicle stepless speed change driving system, which is characterized in that including：First driving motor, planetary gear train, second
Driving motor and third output mechanism, wherein：Planetary gear train is equipped with gear ring, planet stent, sun gear and several planetary gears, row
Star gear is circumferentially distributed on planet stent, and one of planet stent and gear ring engage with the output shaft of the second driving motor, are another
It is engaged with third output mechanism, gear ring is engaged with planetary gear, and sun gear is connect with the first driving motor output terminal and and planet
Gear engages.
2. electric vehicle stepless speed change driving system according to claim 1, it is characterized in that, the gear ring, planet branch
Frame and sun gear are set on main shaft.
3. electric vehicle stepless speed change driving system according to claim 1, it is characterized in that, the third output mechanism is set
There is wheel shaft, the wheel shaft is fixedly connected with the drive shaft of electric vehicle.
4. electric vehicle stepless speed change driving system according to claim 2, it is characterized in that, first driving motor
Including rotor assembly and wound stator, wherein, rotor assembly is equipped with rotor neck bush, and rotor neck bush one end is fixed with the sun
Wheel.
5. electric vehicle stepless speed change driving system according to claim 2, it is characterized in that, first driving motor
Output terminal is connected with sun gear by deceleration mechanism, and the deceleration mechanism is belt, any one in chain, gear drive
Kind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721508381.XU CN207500413U (en) | 2017-11-13 | 2017-11-13 | Electric vehicle stepless speed change driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721508381.XU CN207500413U (en) | 2017-11-13 | 2017-11-13 | Electric vehicle stepless speed change driving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207500413U true CN207500413U (en) | 2018-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721508381.XU Active CN207500413U (en) | 2017-11-13 | 2017-11-13 | Electric vehicle stepless speed change driving system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965552A (en) * | 2017-11-13 | 2018-04-27 | 八方电气(苏州)股份有限公司 | Electric vehicle stepless speed change driving system, change control system and method |
-
2017
- 2017-11-13 CN CN201721508381.XU patent/CN207500413U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965552A (en) * | 2017-11-13 | 2018-04-27 | 八方电气(苏州)股份有限公司 | Electric vehicle stepless speed change driving system, change control system and method |
| CN107965552B (en) * | 2017-11-13 | 2020-11-06 | 八方电气(苏州)股份有限公司 | Stepless speed change driving system, speed change control system and method for electric vehicle |
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