CN107571726A - High speed pure electric automobile external toothing variable ratio drive system - Google Patents
High speed pure electric automobile external toothing variable ratio drive system Download PDFInfo
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- CN107571726A CN107571726A CN201710852612.7A CN201710852612A CN107571726A CN 107571726 A CN107571726 A CN 107571726A CN 201710852612 A CN201710852612 A CN 201710852612A CN 107571726 A CN107571726 A CN 107571726A
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- gear
- speed
- gearbox
- electric automobile
- pure electric
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Abstract
The invention discloses a kind of high speed pure electric automobile external toothing variable ratio drive system, mainly includes high-speed drive gear and orthodox car gear two parts content.First by increasing a high velocity before orthodox car gearbox, increase by one group of external gear pump high-speed reduction gears before an axle, it is still a four common gear mechanical automatic speed-changing casees for the relatively slow-speed of revolution that the adjustment of rotational speed of high-speed driving motor to orthodox car gear is adapted to, after an axle.High velocity uses independent housing, bearing, lubrication and sealing.Invention high speed gear pair speed than it is constant be 1.4 to 3.5 between a fast ratio, the rotating speed of 4900 to 12250rpm high rotating speed motor can be dropped in 3500rpm, adapt to orthodox car gearbox design, technique, production and maintenance.
Description
Technical field
The present invention relates to field of automobile, specifically a kind of high speed pure electric automobile external toothing gear
System.
Background technology
The drive system of pure electric automobile mainly has single motor centralization driving and distributed two kinds of the driving of more motors.It is external
Pure electric automobile scheme it is more based on single-stage speed reducing, speed-regulating function demand is realized by motor completely, it is permanent to pass through motor low speed
Torque and the power demand of high speed constant output characteristic covering vehicle full working scope.But domestic electric machine is poor because manufacturing technology etc. is present
Away from, maximum speed is difficult to reach more than 10,000 turns, limits the horizontal lifting of dynamic property of pure electric automobile, and to the height of motor
Efficiency band scope proposes higher requirement, therefore is difficult to obtain good dynamic property and economy using single-stage speed reducing ratio.
It is that pure electric automobile improves energy-saving effect using small moment of torsion, high rotating speed, high power density, efficient motor
A most effective approach.Due to conventional commercial car transmission system input speed more than within 5000rpm, medium and heavy commercial car
More within 3500rpm, and the rotating speed of high efficiency driving motor of pure electric automobile can be up to 15000 to 20000rpm, even
It is higher, it is seen then that the height that traditional commercial car transmission system can not adapt to high efficiency motor turns below 5000rpm motors
The mode of one 2 to 4 gear mechanical automatic speed-changing case driving of increase, the motor of high speed, high efficiency there is no batch to make at home
With.
Due to current pure electric commercial vehicle can also not give full play to the small moment of torsion of motor, high rotating speed, high power density,
The transmission system of the advantages such as high efficiency so that the vehicle operation power consumption of electric commercial vehicle is higher at present, and operation cost is high, in driving
Journey deficiency, meanwhile, the size and weight of motor are all larger, and arrangement difficulty is big, and motor cost is high.
It is the higher speed gear case for being designed to match speedy carding process motor to solve problem above currently existing scheme, but high
Speed transmission is compared to the increase of conventional transmission case cost, and space is small, and difficult design is big, it is desirable to which precision is high.
The content of the invention
To solve this problem, the present invention proposes a kind of high speed pure electric automobile external toothing variable ratio drive system, can incite somebody to action
The rotating speed of 4900 to 12250rpm high rotating speed motor is dropped in 3500rpm, adapts to design, the work of orthodox car gearbox
Skill, production and maintenance.
To achieve the above object, the present invention uses following technical scheme：
A kind of high speed pure electric automobile external toothing variable ratio drive system, including gearbox high velocity and gearbox low regime；
Described gearbox high velocity is external gear pump reducing gear, and gearbox low regime is multi-gear gear-case；Pure electric automobile
Motor is connected with the input of gearbox high velocity, the output end of gearbox high velocity and the input of gearbox low regime
Connection, the output end of gearbox low regime set output flange.
Described gearbox high velocity includes driving gear and driven gear, and described driving gear passes through spline and driving
The output axis connection of motor, driven gear engage with driving gear, and driving gear external diameter is less than driven gear external diameter, driven gear
It is connected with reducing output shaft, reducing output shaft and an axis connection of gearbox low regime.
Described gearbox high velocity uses independent housing, bearing, lubrication and sealing system.
The speed of the external gear pump of described gearbox high velocity is than being 1.4~3.5.
Described driving gear and driven gear use narrow gear.
Described gearbox low regime is four gear mechanical gear boxes.
The present invention compared with prior art, has advantages below：
The high speed pure electric automobile external toothing variable ratio drive system of the present invention, mainly includes high-speed drive gear and biography
The automobile variable speed mechanism that unites two parts content.By increasing a high velocity before orthodox car gearbox, increase by one before an axle
Group external gear pump high-speed reduction gears, for the adjustment of rotational speed of high-speed driving motor can be fitted to orthodox car gear
The relatively slow-speed of revolution answered, it is still a common mechanical automatic speed-changing case after an axle.High velocity is using independent housing, bearing, profit
Sliding and sealing, conventional transmission case is passed to after the motor transmission of high speed being carried out into reduction of speed, compared to design higher speed gear case
Speech, simple in construction, cost is low, easily realizes.Invention can drop the rotating speed of 4900 to 12250rpm high rotating speed motor
Into 3500rpm, design, technique, production and the maintenance of orthodox car gearbox are adapted to.As the core on new-energy automobile
Heart parts, not only there is the requirement of high standard to its outward appearance, noise, security etc., be used for the requirement of performance more
Strictly.
Further, the external toothing reducing gear formed using big driving gear, in the case where design accuracy meets condition,
Quick reduction of speed, noise reduction, the effect of sealing can be realized.
Further, according to the situation of motor speed and the demand of speed changer, high velocity reasonable in design, it is possible to achieve fast ratio
For 1.4~3.5 reduction of speed requirement.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Wherein, 1, motor, 2, speed changer high velocity, 3, speed changer low regime, 4, output flange, 5, driving tooth
Wheel, 6, driven gear, 7, reducing output shaft, 8, one axle, 9, two axles.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of pure electric automobile variable ratio drive system using high-speed driving motor of the invention, mainly includes
Gearbox high velocity 2 and the two parts of gearbox low regime 3.Power is passed to change by the motor 1 of pure electric automobile by spline
The rotating speed of high-speed driving motor 1 is adjusted before an axle 8 by one group of external gear pump in fast case high velocity 2, gearbox high velocity 2
The whole scope being adapted to orthodox car gearbox 3, adapt to design, technique, production and the maintenance dimension of orthodox car gearbox
Repair.
Gearbox high velocity 2 is external gear pump reducing gear, and gearbox low regime 3 is automobile multi-gear gear-case；Pure electricity
The motor 1 of electrical automobile is connected with the input of gearbox high velocity 2, and the output end of gearbox high velocity 2 is low with gearbox
The input connection in fast area 3, the output end of gearbox low regime 3 set output flange 4.
Gearbox high velocity 2 includes driving gear 5 and driven gear 6, and described driving gear 5 passes through spline and driving electricity
The output axis connection of machine 1, driven gear 6 engage with driving gear 5, and the external diameter of driving gear 5 is less than the external diameter of driven gear 6, driven
Gear 6 is connected with reducing output shaft 7, and reducing output shaft 7 is connected with an axle 8 of gearbox low regime 3.Adopt gearbox high velocity 2
With independent housing, bearing, lubrication and sealing system.The speed of the external gear pump of gearbox high velocity 2 is than being 1.4~3.5.Become
Fast case low regime 3 is four gear mechanical automatic speed-changing casees.
Operation principle is：By increasing a high velocity before orthodox car gearbox, increase before an axle 8 outside one group and nibble
Close high-speed gear reduction gearing, for the adjustment of rotational speed of high-speed driving motor to orthodox car gear be adapted to compared with
The slow-speed of revolution, it is still a four common gear mechanical automatic speed-changing casees after an axle 8.High velocity is using independent housing, bearing, lubrication
And sealing.
The course of work is：The motor of pure electric automobile first by spending 1 key that power is passed into gearbox high velocity 2,
Gearbox high velocity 2 is reduced rotating speed by one group of external gear pump, the adjustment of rotational speed of high-speed driving motor 1 before an axle 8
The scope being adapted to orthodox car gearbox, the gearbox low regime after an axle 8 be still a four common gear machineries from
Dynamic gearbox.
In invention the speed of the external gear pump of gearbox high velocity than it is constant be 1.4 to 3.5 between a fast ratio, can be with
The rotating speed of 4900 to 12250rpm high rotating speed motor is dropped in 3500rpm, gearbox low regime afterwards is still one
Individual four common gear mechanical automatic speed-changing casees.
The technological means taken：1) high velocity is independently separated, independently supported using independent fixation, bearing and independent
Lubrication and seal；2) using reducing gear of the narrow external gear pump of high-precision high speed as high velocity；3) high speed shaft is introduced in exploitation
Hold technology；4) the lubrication and seal technology for adapting to high speed is introduced in exploitation.
The present invention illustrates by taking four-speed gear shift device as an example, is certainly not limited to four-speed gear shift device, five grades of six-gear gearboxes
Matching high velocity can be designed, during assembling, as long as between motor and speed changer, the gearbox for installing a matching is high
Fast area 2.
More than, only presently preferred embodiments of the present invention, the practical range of the present invention is not limited only to, it is all according to the scope of the invention
The equivalence changes done of content and modification, all should be the technology category of the present invention.
Claims (6)
1. a kind of high speed pure electric automobile external toothing variable ratio drive system, it is characterised in that including gearbox high velocity (2) and become
Fast case low regime (3)；Described gearbox high velocity (2) is external gear pump reducing gear, and gearbox low regime (3) are more gears
Gearbox；The motor (1) of pure electric automobile is connected with the input of gearbox high velocity (2), gearbox high velocity (2)
Output end is connected with the input of gearbox low regime (3), and the output end of gearbox low regime (3) sets output flange (4).
2. a kind of high speed pure electric automobile external toothing variable ratio drive system according to claim 1, it is characterised in that described
Gearbox high velocity (2) include driving gear (5) and driven gear (6), driving gear (5) external diameter is less than driven gear (6)
External diameter, described driving gear (5) pass through the output axis connection of spline and motor (1), driven gear (6) and driving gear
(5) engage, driven gear (6) is connected with reducing output shaft (7), reducing output shaft (7) and an axle of gearbox low regime (3)
(8) connect.
3. a kind of high speed pure electric automobile external toothing variable ratio drive system according to claim 2, it is characterised in that described
Driving gear (5) and driven gear (6) use narrow gear.
A kind of 4. high speed pure electric automobile external toothing variable ratio drive system according to claim 1 or 2, it is characterised in that
Described gearbox high velocity (2) is using independent housing, bearing, lubrication and sealing system.
5. a kind of high speed pure electric automobile external toothing variable ratio drive system according to claim 1, it is characterised in that described
Gearbox high velocity (2) external gear pump speed than be 1.4~3.5.
6. a kind of high speed pure electric automobile external toothing variable ratio drive system according to claim 1, it is characterised in that described
Gearbox low regime (3) for four gear mechanical gear boxes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710852612.7A CN107571726A (en) | 2017-09-19 | 2017-09-19 | High speed pure electric automobile external toothing variable ratio drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710852612.7A CN107571726A (en) | 2017-09-19 | 2017-09-19 | High speed pure electric automobile external toothing variable ratio drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107571726A true CN107571726A (en) | 2018-01-12 |
Family
ID=61033579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710852612.7A Pending CN107571726A (en) | 2017-09-19 | 2017-09-19 | High speed pure electric automobile external toothing variable ratio drive system |
Country Status (1)
| Country | Link |
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| CN (1) | CN107571726A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2661479Y (en) * | 2003-04-24 | 2004-12-08 | 北京理工大学 | Single planet row two-gear transmission case for electric automobile |
| US20100203995A1 (en) * | 2007-09-18 | 2010-08-12 | Lingling Zhang | Hybrid electric vehicle |
| CN201687903U (en) * | 2010-04-27 | 2010-12-29 | 江苏技术师范学院 | Stepless speed change device for hybrid electric automobile |
| CN201714925U (en) * | 2010-07-20 | 2011-01-19 | 魏均 | Two-gear auxiliary transmission |
| CN202707955U (en) * | 2012-06-28 | 2013-01-30 | 湖南江麓容大车辆传动股份有限公司 | Electromobile, variable speed gear and variable speed gear control system |
| CN202914646U (en) * | 2012-11-09 | 2013-05-01 | 重庆隆旺机电有限责任公司 | Integral input type electric vehicle transmission of pre-positioned planetary gear train |
| CN104477023A (en) * | 2014-11-26 | 2015-04-01 | 北京理工大学 | Multi-degree-of-freedom power gear-shifting parallel form hybrid power multi-gear speed changing box |
| CN104948716A (en) * | 2015-07-02 | 2015-09-30 | 北京理工大学 | Longitudinally-arranged dual-motor powered shifting transmission |
| CN207274381U (en) * | 2017-09-19 | 2018-04-27 | 陕西法士特齿轮有限责任公司 | A kind of high speed pure electric automobile external toothing variable ratio drive system |
-
2017
- 2017-09-19 CN CN201710852612.7A patent/CN107571726A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2661479Y (en) * | 2003-04-24 | 2004-12-08 | 北京理工大学 | Single planet row two-gear transmission case for electric automobile |
| US20100203995A1 (en) * | 2007-09-18 | 2010-08-12 | Lingling Zhang | Hybrid electric vehicle |
| CN201687903U (en) * | 2010-04-27 | 2010-12-29 | 江苏技术师范学院 | Stepless speed change device for hybrid electric automobile |
| CN201714925U (en) * | 2010-07-20 | 2011-01-19 | 魏均 | Two-gear auxiliary transmission |
| CN202707955U (en) * | 2012-06-28 | 2013-01-30 | 湖南江麓容大车辆传动股份有限公司 | Electromobile, variable speed gear and variable speed gear control system |
| CN202914646U (en) * | 2012-11-09 | 2013-05-01 | 重庆隆旺机电有限责任公司 | Integral input type electric vehicle transmission of pre-positioned planetary gear train |
| CN104477023A (en) * | 2014-11-26 | 2015-04-01 | 北京理工大学 | Multi-degree-of-freedom power gear-shifting parallel form hybrid power multi-gear speed changing box |
| CN104948716A (en) * | 2015-07-02 | 2015-09-30 | 北京理工大学 | Longitudinally-arranged dual-motor powered shifting transmission |
| CN207274381U (en) * | 2017-09-19 | 2018-04-27 | 陕西法士特齿轮有限责任公司 | A kind of high speed pure electric automobile external toothing variable ratio drive system |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180112 |
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| RJ01 | Rejection of invention patent application after publication |