CN202896297U - Electric automotive transmission system - Google Patents
Electric automotive transmission system Download PDFInfo
- Publication number
- CN202896297U CN202896297U CN201220466749.1U CN201220466749U CN202896297U CN 202896297 U CN202896297 U CN 202896297U CN 201220466749 U CN201220466749 U CN 201220466749U CN 202896297 U CN202896297 U CN 202896297U
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- bearing
- casing
- transmission system
- output shaft
- retarder
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Abstract
The utility model provides an electric automotive transmission system which comprises a motor and a speed reducer, wherein the motor is provided with an output shaft, the speed reducer is provided with a box body which is fixedly connected on the end portion of the motor, and the output shaft of the motor penetrates through the box body of the speed reducer to extend into the speed reducer to form an input shaft of the speed reducer. A differential mechanism is placed inside the speed reducer, and a reduction gear group used for slowing down rotation output of the input shaft and transmitting the slowed rotation output to the differential mechanism is placed between the input shaft and the differential mechanism. The electric automotive transmission system has the advantages of being small in size, light in weight, convenient to install, reliable to work and especially suitable for pure electric vehicles to use.
Description
Technical field
The utility model relates to the electronlmobil field, relates in particular to a kind of transmission system of electric automobile.
Background technology
Along with the day by day in short supply and exhaust emissions of oil resources is day by day abominable on the impact of environment, new-energy automobile (particularly pure electric automobile) more and more is subject to people's attention, country has also put into effect multinomial incentives in the recent period, with the development of further promotion electric vehicle engineering.At present, the power system of electronlmobil (particularly pure electric passenger vehicle) includes: motor, retarder and diff etc.Wherein, motor and retarder are separately mutually independently unit, generally by spline fitted motor output shaft are connected with reducer input shaft, and the output torque of motor is passed to wheel after retarder amplifies.So often cause that the driving system volume is bigger than normal, weight lays particular stress on, cost is higher, and matching precision descends after motor and the gear case assembling, is unfavorable for development and the popularization of electric vehicle engineering.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of compact conformation, the transmission system of electric automobile of stable drive.
The purpose of this utility model is by providing following a kind of transmission system of electric automobile to realize that it comprises: motor, and described motor has output shaft; Retarder, described retarder has casing, and the casing of described retarder is fixed on the end of motor; The casing that described output shaft passes retarder stretches in the retarder, forms the input shaft of retarder; Also be provided with diff in the described retarder, be provided with the train of reduction gears that passes to diff after the rotation of input shaft output slowed down between described input shaft and the diff.
Preferably, described casing is provided with through hole, and described output shaft passes described through hole, and between described through hole and the described output shaft axially spaced-apart be provided with two outside framework oil seals, be filled with grease between described two outside framework oil seals.
Preferably, be fixedly connected with the supplemental support casing in the described casing, described supplemental support casing is provided with bearing, and the end bearing of described output shaft is in described bearing.
Preferably, described bearing comprises angular contact ball bearing and cylindrical bearing, the described output shaft of described angular contact ball bearing axially mounting, the described output shaft of described cylindrical bearing radial support.
Preferably, described train of reduction gears comprises: the same input gear that is located on the output shaft that hand of rotation is fixing, which is provided with the secondary driving gear shaft of output gear, the same one-level driven gear that is located on the described secondary driving gear shaft that hand of rotation is fixing, the same diff driven gear that is located on the described diff that hand of rotation is fixing, described input gear and the engagement of described one-level driven gear, described output gear and the engagement of described diff driven gear.
Further preferred, the two ends of described secondary driving gear shaft are supported on described casing by bearing, wherein the bearing seat detouchable of at least one bearing is connected in casing, and between two bearing surfaces of correspondence that described bearing seat and described casing connect, is provided with the adjustment pad.
Further preferred, the two ends of described diff are supported on described casing by bearing, wherein the bearing seat detouchable of at least one bearing is connected in casing, and between two bearing surfaces of correspondence that described bearing seat and described casing connect, is provided with the adjustment pad.
Further preferred, described bearing is conical bearing.
Further preferred, described output shaft, secondary driving gear shaft and diff are arranged in parallel.
Preferably, described casing is formed by connecting by two and half casings along the longitudinally branch mailbox of casing.
The beneficial effects of the utility model are mainly reflected in: the utility model retarder and motor integrate, and have reduced the amount of parts of whole driving system, alleviate overall weight, and structure is compacter; In reduction case inside the supplemental support casing is installed, the motor shaft that extend into retarder inside in the end by bearings at the supplemental support box house, improved like this integral rigidity of motor shaft, increase the stationarity of driving system; At the perforation position of motor input shaft and reduction case two outside framework oil seals are installed, leave enough large gap between two outside framework oil seals, be coated with full grease during assembling, further improve the reliability of sealing.Simultaneously, retarder is taked vertical branch mailbox, comprises left and right two casings, assembles convenient.To sum up, the utility model volume is little, lightweight, and is easy for installation, and reliable operation is particularly suitable for pure electric automobile and uses.
Description of drawings
Fig. 1 is the block diagram of the transmission system of electric automobile of the specific embodiment of the present utility model.
Fig. 2 is the cutaway view after the transmission system of electric automobile among Fig. 1 launches along the A-A line.
Fig. 3 is that transmission system of electric automobile among Fig. 1 is along the horizontal cross of electrical axis.
Fig. 4 is the part sectional view of the transmission system of electric automobile among Fig. 1.
| 1, retarder | 2, |
| 101, |
102, supplemental support casing |
| 103, secondary driving gear shaft | 104, half casing |
| 105, diff driven |
106, half casing |
| 107, diff | 108, one-level driven |
| 109, outside |
110, |
| 111, |
112, |
| 113, angular contact ball bearing | 114, |
| 115, cylindrical bearing | 116, bearing seat |
| 117, adjust pad | 118, bearing seat |
| 119, |
201, output shaft |
The specific embodiment
Such as Fig. 1, the specific embodiment of the present utility model provides the transmission system of electric automobile of a kind of use on pure electric automobile, and it comprises motor 2 and the retarder 1 that is wholely set with motor 2.The casing of retarder 1 is fixedly connected on motor 2, be specially on the end of motor 2, be that casing can directly connect the end cap that motor 2 also consists of motor 2 simultaneously, also can be with the captive joint motor 2 indirectly of the mode on the end cap that is connected to motor 2, can also be connected on the end of motor 2 and the end cap integral body of motor 2 is housed in the retarder 1.Retarder 1 adopts vertically minute box structure, and described casing is formed by connecting by two and half casings along the longitudinally branch mailbox of casing, comprises left half half side casing 104 and right half half side casing 106, and they are bolted.Box house comprises train of reduction gears and diff 107, and the moment of torsion of output shaft 201 outputs of motor 2 passes to wheel by diff 107 after train of reduction gears is amplified, to drive the car load motion.
Fig. 2 is the cutaway view after Fig. 1 launches along the A-A line, Fig. 3 is that Fig. 1 is along the horizontal cross of electrical axis X, in conjunction with Fig. 2 and Fig. 3, because the integrated setting of retarder 1 and motor 2, the output shaft 201 of motor 2 directly extend into the inside of retarder 1, as the input shaft use of retarder 1.Simultaneously, for the integral rigidity of the output shaft 201 that strengthens motor 2, improve the stability of output, the inside of retarder 1 is provided with a supplemental support casing 102, and supplemental support casing 102 is affixed on the retarder 1, wherein is provided with bearing.The end bearing of output shaft 201 is on described bearing.
Such as Fig. 3 and Fig. 4, concrete, output shaft 201 is from the casing of retarder 1, be specially in the through hole on half casing 106 and pass, enter retarder 1, between the through hole and output shaft 201 of casing, axially spaced-apart be provided with two outside framework oil seals 109, filled up grease between two outside framework oil seals 109, to increase the reliability of sealing.After output shaft 102 penetrates retarder 1, namely enter in the supplemental support casing 102, supplemental support casing 102 is roughly tubular, its bottom is by on the fixing casing that is connected to retarder 1 of screw 110 or other attaching partss, corresponding top is provided with bearing, bearing comprises an angular contact ball bearing 113 (being specially 4 angular contact ball bearings) and a cylindrical bearing 115, these two bearings distribute vertically, the end of supporting output shaft 201, wherein angular contact ball bearing 113 is in order to realize the axially mounting to output shaft 201, and cylindrical bearing 115 is used for realization to the radial support of output shaft 201.Simultaneously, the top of supplemental support casing 102 also is provided with end cap 112, end cap 112 is fixedly attached on the supplemental support casing 102 by bolt 111 or other attaching partss, and and the annular table terrace that is formed at supplemental support casing 102 inside together, aforesaid two bearings are carried out axial location.Pressing plate 114 is bolted on the output shaft 201.By described structure, the end of output shaft 201 is subject to being positioned at the supporting of the bearing on the supplemental support casing 102, thereby the rotation stable output is reliable.
Continuation is with reference to Fig. 2, train of reduction gears in the retarder 1 constitutes: 201 whiles of output shaft of motor 2 are as the input shaft of retarder 1, the fixing coaxial input gear 101 that is provided with of hand of rotation on it, the fixing same one-level driven gear 108 that is located on the secondary driving gear shaft 103 of input gear 101 engagement hand of rotation, drive 103 rotations of secondary driving gear shaft, secondary driving gear shaft 103 is by fixing same diff driven gear 105 rotations that are located on the diff 107 of the output gear driven rotary direction on it, finish the Speed Reduction with motor output, moment of torsion amplifies the task of passing to diff 107.Diff 107 is connected with the left and right wheels semiaxis of electronlmobil, with transmission of power to wheel.Described output shaft 201, secondary driving gear shaft 103 and diff 107 are arranged in parallel.By the output shaft of motor 2 directly being integrated into the inside of retarder 1, this scheme has reduced the volume and weight of driving system significantly, has reduced part use and middle assembling link, thereby has also improved the matching precision of driving system.In the present embodiment, transmission is double reduction, yet according to concrete design requirement, those skilled in the art can select other step of reduction.
Concrete, aforesaid input gear 101 is by spline structure, and cover fixing on the hand of rotation is received on the output shaft 201, with output shaft 201 coaxial rotatings, and will rotatablely move and be delivered to one-level driven gear 108 by the gear engagement system; Cover fixing on 108 hand of rotation of one-level driven gear is received on the secondary driving gear shaft 103 integrated setting and diff driven gear 105 gears in meshs on the side face of secondary driving gear shaft 103.Herein, the number of teeth of one-level driven gear 108 realize first order deceleration, and the number of teeth of diff driven gear 105 realizes second stage deceleration also greater than the gear number of teeth on the secondary driving gear shaft 103 greater than the number of teeth of input gear 101.
The setting that secondary driving gear shaft 103 and output shaft 201 are parallel, stable rotation is respectively supported to realize by bearing in its two ends, and is concrete, two ends respectively arrange 119 supportings of a conical bearing.The bearing seat of the conical bearing 119 of secondary driving gear shaft 103 bottoms directly is shaped in the bottom of casing, be specially on half casing 106, the bearing seat 116 of the conical bearing 119 on its top then is the top that is connected in casing by attaching parts detouchables such as bolts, be specially on half casing 104, and, between two bearing surfaces of correspondence that bearing seat 116 and casing connect, be provided with and adjust pad 117, be used for adjusting the play of the conical bearing 119 of installing on the secondary driving gear shaft 103, to improve the complete machine traveling comfort.Similarly, the also setting parallel with output shaft 201 of diff 107, stable rotation is respectively supported to realize by bearing in its two ends, and is concrete, two ends respectively arrange 119 supportings of a conical bearing.Equally, the bearing seat of the conical bearing 119 of its bottom is shaped in casing, be specially on half casing 106, and the bearing seat 118 of the conical bearing 119 on top is connected in the casing top by attaching parts detouchables such as bolts, be specially on half casing 104, and between two bearing surfaces of correspondence that bearing seat 118 and casing connect, be provided with and adjust pad 117, be used for adjusting the play of the conical bearing 119 of installing on the diff 107, improve the complete machine traveling comfort.
The utility model is not limited to aforementioned embodiments; those skilled in the art are under the enlightenment of the utility model technical spirit; also may make other changes, but as long as function and the utility model of its realization are same or similar, all should belong to protection domain of the present utility model.
Claims (10)
1. transmission system of electric automobile comprises: motor, and described motor has output shaft; Retarder, described retarder has casing, it is characterized in that:
The casing of described retarder is fixed on the end of motor; The casing that described output shaft passes retarder stretches in the retarder, forms the input shaft of retarder; Also be provided with diff in the described retarder, be provided with the train of reduction gears that passes to diff after the rotation of input shaft output slowed down between described input shaft and the diff.
2. transmission system of electric automobile according to claim 1, it is characterized in that described casing is provided with through hole, described output shaft passes described through hole, and between described through hole and the described output shaft axially spaced-apart be provided with two outside framework oil seals, be filled with grease between described two outside framework oil seals.
3. transmission system of electric automobile according to claim 1 is characterized in that, is fixedly connected with the supplemental support casing in the described casing, and described supplemental support casing is provided with bearing, and the end bearing of described output shaft is in described bearing.
4. transmission system of electric automobile according to claim 3 is characterized in that, described bearing comprises angular contact ball bearing and cylindrical bearing, the described output shaft of described angular contact ball bearing axially mounting, the described output shaft of described cylindrical bearing radial support.
5. transmission system of electric automobile according to claim 1, it is characterized in that, described train of reduction gears comprises: the same input gear that is located on the output shaft that hand of rotation is fixing, which is provided with the secondary driving gear shaft of output gear, the same one-level driven gear that is located on the described secondary driving gear shaft that hand of rotation is fixing, the same diff driven gear that is located on the described diff that hand of rotation is fixing, described input gear and the engagement of described one-level driven gear, described output gear and the engagement of described diff driven gear.
6. transmission system of electric automobile according to claim 5, it is characterized in that, the two ends of described secondary driving gear shaft are supported on described casing by bearing, wherein the bearing seat detouchable of at least one bearing is connected in casing, and between two bearing surfaces of correspondence that described bearing seat and described casing connect, be provided with the adjustment pad.
7. transmission system of electric automobile according to claim 5, it is characterized in that, the two ends of described diff are supported on described casing by bearing, wherein the bearing seat detouchable of at least one bearing is connected in casing, and between two bearing surfaces of correspondence that described bearing seat and described casing connect, be provided with the adjustment pad.
8. according to claim 6 or 7 described arbitrary transmission system of electric automobile, it is characterized in that described bearing is conical bearing.
9. transmission system of electric automobile according to claim 5 is characterized in that, described output shaft, secondary driving gear shaft and diff are arranged in parallel.
10. transmission system of electric automobile according to claim 1 is characterized in that, described casing is formed by connecting by two and half casings along the longitudinally branch mailbox of casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220466749.1U CN202896297U (en) | 2012-09-13 | 2012-09-13 | Electric automotive transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220466749.1U CN202896297U (en) | 2012-09-13 | 2012-09-13 | Electric automotive transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202896297U true CN202896297U (en) | 2013-04-24 |
Family
ID=48117005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220466749.1U Expired - Lifetime CN202896297U (en) | 2012-09-13 | 2012-09-13 | Electric automotive transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202896297U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660926A (en) * | 2012-09-13 | 2014-03-26 | 南车戚墅堰机车车辆工艺研究所有限公司 | Electric automobile transmission system |
| CN106523638A (en) * | 2016-08-31 | 2017-03-22 | 苏州东风精冲工程有限公司 | Half box type new energy vehicle reducer |
-
2012
- 2012-09-13 CN CN201220466749.1U patent/CN202896297U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660926A (en) * | 2012-09-13 | 2014-03-26 | 南车戚墅堰机车车辆工艺研究所有限公司 | Electric automobile transmission system |
| CN106523638A (en) * | 2016-08-31 | 2017-03-22 | 苏州东风精冲工程有限公司 | Half box type new energy vehicle reducer |
| CN106523638B (en) * | 2016-08-31 | 2019-03-08 | 苏州东风精冲工程有限公司 | Half box type new energy vehicle retarder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
|
| CX01 | Expiry of patent term |