CN2745778Y - Front wheel driving device of electric automobile - Google Patents
Front wheel driving device of electric automobile Download PDFInfo
- Publication number
- CN2745778Y CN2745778Y CN 200420081930 CN200420081930U CN2745778Y CN 2745778 Y CN2745778 Y CN 2745778Y CN 200420081930 CN200420081930 CN 200420081930 CN 200420081930 U CN200420081930 U CN 200420081930U CN 2745778 Y CN2745778 Y CN 2745778Y
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- gear
- pulley
- driving
- shaft
- electric vehicle
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Abstract
The front wheel driving device of the electric automobile of the utility model, belonging to the field of the drive disk assembly for electric automobile design and the manufacturing technology, mainly comprises a main speed reducer (7) with an input shaft (5) an output shaft (8), an electric machine (3) with an electric machine shaft (2) arranged on the main speed reducer, a steplessly automatic speed changer composed of a diving pulley (1) and a driven pulley (6), etc. The whole structure of the utility model is reasonable design. The driving pulley and the driven pulley are respectively composed of a movable disc and a fixed disc. The wheel diameter change of the driving pulley and the driven pulley caused by the movement of the movable disc make the utility model has the function of automatic transmission. Simultaneously, the middle shaft and the middle gear arranged in the inside of the main speed reducer enlarge the center distance between the driving gear and the driven gear. The utility model with good power performance, lower power consumption and corresponding longer running distance can thoroughly bring the power performance of the electric automobile (namely, the highest speed, the maximal climbing capacity and better accelerating performance) and the economy performance (low power consumption) in to play.
Description
Technical field
The utility model relates to a kind of used for electric vehicle front-wheel drive, belongs to the design and fabrication technology field of used for electric vehicle drive disk assembly.
Background technology
The actuating device of existing used for electric vehicle has f-w-d and back-wheel drive two big classifications, what the having of f-w-d reequiped on gear change-speed box band main reduction gear adds these two kinds of front driving devices of main reduction gear with tor-con, and these actuating devices seem all that concerning electronlmobil heaviness and dynamic property and economy are all undesirable.
The back-wheel drive device increases a transmission shaft more and has only a fixing rear driving axle main reduction gear speed ratio, and the electronlmobil maximum speed is low and hill climbing ability is poor.
With the driving device repacking that grade change speed gear box band main reduction gear is arranged of before driving electronlmobil, only choose a gear of many grades, remove all the other gears and repack the used for electric vehicle front driving device into.This device has been used the very heavy change speed gear box of bulky quality so seem heavy and have only shelves because of prolonging, and institute's at high speed and hill climbing ability can not both get both, and can not obtain good and economic, and power consumption is higher relatively.
In order to simplify the transmission device of before driving, behind motor, increase a tor-con, in fact just the retarder of a fixed speed ratio adds a main reduction gear, though than change speed gear box repacking gentlier, but there are not maximum speed and hill climbing ability that transmission system can not preferably have been given play to electronlmobil equally, can not obtain power consumption lower under each operating mode, less economical.
To sum up the actuating device of three kinds of electronlmobils has a common characteristic, be that mechanical driving part all is limited to the fixedly speed reduction gearing of reduction ratio, its speed change all depends on single ground of electric controller controlling and driving motor, it is limited in one's ability and depend electric machine control alone, is impossible obtain good dynamics under the various road conditions loads and economy.Also have common characteristics to be, the mechanical drive of these actuating devices is because of having only a reduction ratio, without gear shift, handle very simple, only with a brake pedal and an automatically controlled speed of a motor vehicle pedal, the starting torque of high pulling torque when utilizing direct current permanent magnet motor low speed, can start battery-driven car easily, utilize motor rotating control easily again, saved reverse, so can adopt the easy maneuvering system of the two pedal of no shifter bar.But these actuating devices also have a common shortcoming, promptly all can not give play to the dynamic property and the economy of electronlmobil preferably.
Summary of the invention
The purpose of this utility model provides a kind of reasonable in design, can give full play to the used for electric vehicle front-wheel drive of the dynamic property and the economy of electronlmobil.
The utility model is the used for electric vehicle front-wheel drive, the main reduction gear that comprises tape input axle and output shaft, place the motor of charged arbor on the main reduction gear, it is characterized in that motor shaft is provided with the driving pulley that is made of reaction plate and the Advance plate of being with force-bearing base, input shaft is provided with by reaction plate and the driven pulley that constitutes with the Advance plate of central stage clip, and described driving pulley is connected transmission with driven pulley by belt.
Also can be provided with the tween drive shaft of band intermediate gear in the described main reduction gear, be respectively equipped with driving gear and driven gear on described input shaft and the output shaft, driving gear is by intermediate gear and driven gear engaged transmission.
Also can be provided with stage clip in the described force-bearing base.Also can be provided with centrifugal that is with torsion spring and flies iron in the described force-bearing base.
The Advance plate inboard of described driving pulley also can be provided with wear-resistant plastic.
Also can be provided with the suspension front frame on the described main reduction gear, hang after poppet, the suspending side support.Suspension front frame, suspension after poppet, suspending side support link with form and the supporting of the vehicle frame on the electronlmobil Beam that trifilar suspension surely leans on.
The utility model compared with prior art has following outstanding advantage and good effect:
1, will be used for electronlmobil by the belt continuously variable automatic transmission that driving pulley and driven pulley constitute, its driving pulley and driven pulley are made of Advance plate and reaction plate respectively; Because the mobile wheel of driving pulley and driven pulley that causes of Advance plate directly changes, and causes the change of transmitting ratio between driving pulley and the driven pulley, makes it to possess the self-shifting function.Simultaneously, the belt continuously variable automatic transmission is directly installed on motor shaft and the main reduction gear input shaft, seldom uses other connectors such as plunging joint and bearing frame.
2, tween drive shaft and intermediate gear are set in the main reduction gear, make the driving gear on the main reduction gear input shaft moment be passed to driven gear by intermediate gear, strengthen the width between centers of driving gear and driven gear, solved the driven pulley on the belt continuously variable automatic transmission and the problem of output shaft interference.
3, main reduction gear is designed as basic components, motor and belt continuously variable automatic transmission are installed on the main reduction gear, main reduction gear hangs flexibly and is installed in by the rubber elasticity part on the vehicle frame supporting Beam of electronlmobil as base part, makes whole driving system structure compactness, little, the light weight, with low cost of volume.
The utility model unit design is reasonable, by to integrally-built well-designed and careful layout, and motor rated power, torque rating, the isoparametric maxim of rated speed of rotation are optimized coupling with the speed ratio interval range of belt continuously variable automatic transmission and main reduction gear reduction ratio calculate, the dynamic property that can give full play to electronlmobil (is maximum speed, climbing performance from dead stop, acceleration capability preferably) and economy (low power consumption), guarantee that electric powered motor is good, power consumption is lower, continual mileage is longer relatively.Compared with prior art, maximum speed is improved more than 35%, max. climb slope improves 100%～150%.The utility model is applicable on mid-get car, baby car, electronic mid-get car and electronic baby car and uses.
Description of drawings
Fig. 1 is a Facad structure scheme drawing of the present utility model;
Fig. 2 is a construction profile cutaway view of the present utility model.
Among the figure: 1 is driving pulley, and 2 is motor shaft, and 3 is motor, 4 is belt, and 5 is the main reduction gear input shaft, and 6 is driven pulley, 7 is main reduction gear, and 8 is the main reduction gear output shaft, and 9 is the driving pulley reaction plate, 10 is the driving pulley Advance plate, and 11 is wear-resistant plastic, and 12 is torsion spring, 13 is centrifugal, and 14 for flying iron, and 15 is force-bearing base, 16 is the driven pulley Advance plate, and 17 is the driven pulley reaction plate, and 18 is central stage clip, 19 is driven gear, 20 is intermediate gear, and 21 is tween drive shaft, and 22 is driving gear, 23 for hanging front frame, 24 for hanging after poppet, and 25 is the suspending side support, and 26 is stage clip.
The specific embodiment
The utility model places the motor 3 of charged arbor 2 on the main reduction gear 7 mainly by the main reduction gear 7 of tape input axle 5 and output shaft 8, and belt continuously variable automatic transmission that is made of driving pulley 1 and driven pulley 6 etc. constitutes.
Place on the motor shaft 2 by reaction plate 9 and the driving pulley 1 that the Advance plate 10 of being with wear-resistant plastic 11 and force-bearing base 15 constitutes, place on the input shaft 5 of main reduction gear 7 by reaction plate 17 with the driven pulley 6 that the Advance plate 16 of central stage clip 18 constitutes, driving pulley 1 is connected transmission with driven pulley 6 by belt 4.Be provided with stage clip 26 and band torsion spring 12 in the force-bearing base 15 and fly centrifugal 13 of iron 14.
Also be provided with the tween drive shaft 21 of band intermediate gear 20 in the main reduction gear 7, be respectively equipped with driving gear 22 and driven gear 19 on input shaft 5 and the output shaft 8, driving gear 22 is by intermediate gear 20 and driven gear 19 engaged transmission.
During work, direct current permanent magnet motor 3 is a propulsion source, directly drive the driving pulley 1 of belt continuously variable automatic transmission by motor shaft 2, the axle pressure of stage clip 26 is pressed to reaction plate 9 with Advance plate 10 together with belt 4 in the force-bearing base 15, axle pressure makes the belt 4 and the conical surface of reaction plate 9 produce the moment of torsion that friction force can transmit motor shaft 2, and pass to the driven pulley 6 of belt continuously variable automatic transmission by belt 4, pass through main reduction gear inner pinion gear 22 at last, intermediate gear 20, the engaged transmission of driven gear 19 is slowed down and amplifying moment, propulsive effort is passed to the front vehicle wheel of electronlmobil by output shaft 8.
The speed change of belt continuously variable automatic transmission is to fly the centnifugal force that iron 14 rotations produce on centrifugal 13 and centrifugal 13 in the 2 drive force-bearing bases 15 of the motor shaft on the motor 3, when motor 3 controlled devices are automatically controlled when causing rotating speed to bring up to a certain numerical value, owing to add for centrifugal 13 (this value is needed to decide by electric automobile during traveling) when the centnifugal force that flies iron 14 arrives critical value greatly, make making a concerted effort of centnifugal force and 3 stage clip 26 pressure greater than the axle pressure of the central stage clip 18 of driven pulley 6, Advance plate 10 is moved to the left, press to reaction plate 9, make the wheel of driving pulley 1 directly become big, by belt 4 wheel of driven pulley 6 is directly diminished again, at this moment speed ratio reduces speed of a motor vehicle increase; Rotating speed reduction centnifugal force as motor 3 reduces, at this moment the central stage clip on the driven pulley 6 18 can directly become big with the wheel of driven pulley 6, directly dwindle by the wheel of belt 4 driving pulley 1, the speed ratio of belt continuously variable automatic transmission increases, moment of torsion also increases, the speed of a motor vehicle reduces, and is equivalent to electronlmobil on bad road surface or the operating mode during climbing.So the belt continuously variable automatic transmission can automatic speed changing to adapt to different operating modes and road conditions, save heavy gear-change operation, without shifter bar, battery-driven car is driven seemed light laborsaving, and can make electronlmobil give full play of the ideally realization two-pedal operation system of good dynamic property and low power consumption.
Claims (6)
1, a kind of used for electric vehicle front-wheel drive, the main reduction gear (7) that comprises tape input axle (5) and output shaft (8), place main reduction gear (7) to go up the motor (3) of charged arbor (2), it is characterized in that motor shaft (2) is provided with the driving pulley (1) by Advance plate (10) formation of reaction plate (9) and band force-bearing base (15), input shaft (5) is provided with by reaction plate (17) and the driven pulley (6) that constitutes with the Advance plate (16) of central stage clip (18), and described driving pulley (1) is connected transmission with driven pulley (6) by belt (4).
2, by the described used for electric vehicle front-wheel drive of claim 1, it is characterized in that also being provided with in the described main reduction gear (7) tween drive shaft (21) of band intermediate gear (20), be respectively equipped with driving gear (22) and driven gear (19) on described input shaft (5) and the output shaft (8), driving gear (22) is by intermediate gear (20) and driven gear (19) engaged transmission.
3, by the described used for electric vehicle front-wheel drive of claim 1, it is characterized in that also being provided with in the described force-bearing base (15) stage clip (26).
4, by claim 1 or 2 described used for electric vehicle front-wheel drives, centrifugal (13) that it is characterized in that also being provided with band torsion spring (12) in the described force-bearing base and fly iron (14).
5, by the described used for electric vehicle front-wheel drive of claim 1, it is characterized in that Advance plate (10) inboard of described driving pulley (1) also is provided with wear-resistant plastic (11).
6, by the described used for electric vehicle front-wheel drive of claim 1, it is characterized in that also being provided with on the described main reduction gear (7) and hang front frame (23), hang after poppet (24), suspending side support (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081930 CN2745778Y (en) | 2004-08-18 | 2004-08-18 | Front wheel driving device of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081930 CN2745778Y (en) | 2004-08-18 | 2004-08-18 | Front wheel driving device of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2745778Y true CN2745778Y (en) | 2005-12-14 |
Family
ID=35582362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420081930 Expired - Fee Related CN2745778Y (en) | 2004-08-18 | 2004-08-18 | Front wheel driving device of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2745778Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346996C (en) * | 2006-06-06 | 2007-11-07 | 北京理工大学 | Motor drive and transmission device of electric automobile |
-
2004
- 2004-08-18 CN CN 200420081930 patent/CN2745778Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346996C (en) * | 2006-06-06 | 2007-11-07 | 北京理工大学 | Motor drive and transmission device of electric automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |