CN207015146U - A kind of electric motor coach transmission system - Google Patents
A kind of electric motor coach transmission system Download PDFInfo
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- CN207015146U CN207015146U CN201720944800.8U CN201720944800U CN207015146U CN 207015146 U CN207015146 U CN 207015146U CN 201720944800 U CN201720944800 U CN 201720944800U CN 207015146 U CN207015146 U CN 207015146U
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- reduction gearing
- differential
- electric motor
- transmission system
- gearbox
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Abstract
A kind of electric motor coach transmission system of the utility model, including motor, gearbox, power transmission shaft, drive axle, double reduction part, differential part and differential mechanism shell；The motor is connected with the gearbox and be arranged in parallel with the drive axle；The gearbox is connected by power transmission shaft with the differential part；The double reduction part is connected with the differential part and is arranged in the cavity that the drive axle and the differential mechanism shell are formed；The differential part includes four bevel gears being meshed；The driven wheel of differential that the drive bevel gear and two faces that the bevel gear is set including two faces are set；Described two drive bevel gears are connected with the double reduction part；Described two driven wheels of differential are connected with two semiaxis in the drive axle respectively.A kind of transmission efficiency of electric motor coach transmission system of the utility model while realize the miniaturization in structure.
Description
Technical field
Automotive proplsion technical field is the utility model is related to, especially a kind of electric motor coach transmission system.
Background technology
Integral new-energy passenger develops rapidly in China, and the course continuation mileage of electric motor coach depends on the electricity of entrucking.It is limited by mesh
Preceding technical merit, electrokinetic cell density are difficult to have breakthrough, cause battery appearance excessive, and the battery electric quantity loaded on vehicle has
Limit.And improve one of approach of course continuation mileage of electric motor coach can be by improving the mechanical efficiency of drive system.
At present using it is most common be central straight drive scheme, i.e. motor adds gearbox, reconnects power transmission shaft to main reducing gear.
The compartment volume integrally occupied is larger can not to realize miniaturization, while drives the main reducing gear of back axle to being two-stage between differential mechanism
Transmit.One-level is that bevel gear is in 90 degree, and its transmission efficiency 0.94~0.97, two level is helical gears, and its transmission efficiency is
0.98~0.99.Power transmission shaft can not ensure that equivalent angle meets to require in design, and transmission efficiency accordingly reduces.
Therefore, it is necessary to propose the electric motor coach transmission system of a miniaturized structure and transmission efficiency.
Utility model content
In view of the technical problem present in background technology, the shortcomings that the purpose of this utility model is to overcome prior art,
A kind of transmission efficiency, the electric motor coach transmission system of miniaturized structure are provided.
In order to solve the above technical problems, the utility model employs following technical measures：
A kind of electric motor coach transmission system, including motor, gearbox, power transmission shaft, drive axle, double reduction part, difference
Fast part and differential mechanism shell；The motor is connected with the gearbox and be arranged in parallel with the drive axle；The change
Fast case is connected by power transmission shaft with the differential part；The double reduction part is connected with the differential part and is arranged at described
In the cavity that drive axle and the differential mechanism shell are formed；The differential part includes four bevel gears being meshed；The cone tooth
Wheel includes the driven wheel of differential of the drive bevel gear that two faces set and two face settings；Described two drive bevel gears with
The double reduction part is connected；Described two driven wheels of differential are connected with two semiaxis in the drive axle respectively.
As a further improvement, the motor, gearbox, power transmission shaft and differential mechanism shell are arranged at the drive axle
Top；The motor and power transmission shaft are located at described gearbox the same side and arranged in parallel.
As a further improvement, it is arranged at driving gear set in the gearbox；The driving gear set includes driving tooth
Wheel and driven gear；The drive rod of the driving gear and the motor is coaxially connected；The driven gear and the biography
Moving axis is coaxially connected.
As a further improvement, the power transmission shaft is a gimbal coupling.
As a further improvement, distribution is set up and down successively for the double reduction part and differential part.
As a further improvement, the double reduction part include be driven successively the first reduction gearing, the second reduction gearing,
3rd reduction gearing and the 4th reduction gearing；First reduction gearing and the power transmission shaft are coaxially connected；Described second slows down
Gear and the 3rd reduction gearing are realized coaxially connected by a fixing axle；4th reduction gearing is consolidated with the drive bevel gear
Fixed connection.
As a further improvement, the fixing hole passed through for the semiaxis is provided with the 4th reduction gearing；Described 4th
Two fixed seats are fixedly installed on side side on the direction of reduction gearing axial direction；It is fixed respectively in each fixed seat to connect
It is connected to a drive bevel gear；4th reduction gearing drives the drive bevel gear rotation, and the drive bevel gear drives
The driven wheel of differential rotation.
As a further improvement, first reduction gearing, the second reduction gearing, the 3rd reduction gearing and the 4th reducing gear
Wheel is helical gears.
As a further improvement, the motor is installed on below body platform, to realize reduction unsprung mass, improve
Vehicle comfortableness.
Compared with prior art, the utility model has advantages below：
1st, a kind of electric motor coach transmission system of the utility model is using motor lateral arrangement and parallel to drive axle, together
When the structure that is connected by power transmission shaft with drive axle of gearbox so that whole system arrangement is more reasonable, and space availability ratio is high, whole
The more compact miniaturization realized in structure of body, more arrangement spaces are vacateed for vehicle.
2nd, a kind of electric motor coach transmission system of the utility model using double reduction part and differential part integrative-structure, then with
Motor is directly connected to, drive axle-free transmission, can subtract the transmission efficiency of power transmission shaft, while overall more compact realizes structure
On miniaturization, vacate more arrangement spaces for vehicle.
3rd, the double reduction part in a kind of electric motor coach transmission system of the utility model is eliminated in traditional main reducing gear
Bevel gear structure, is changed to helical gears, increases overall transmission efficiency.
4th, a kind of electric motor coach transmission system of the utility model reduces matter under spring by motor below body platform
Amount, improve vehicle comfortableness.
Brief description of the drawings
Accompanying drawing 1 is a kind of structural representation of electric motor coach transmission system of the utility model；
Accompanying drawing 2 is the structural representation of double reduction part and differential part in a kind of electric motor coach transmission system of the utility model
Figure.
Main element symbol description
Drive axle 10,
Motor 20,
Double reduction part 30, the first reduction gearing 31, the second reduction gearing 32, the 3rd reduction gearing 33, the 4th reducing gear
Wheel 34,
Differential part 40, bevel gear 41, drive bevel gear 411, driven wheel of differential 412,
Fixed seat 50,
Semiaxis 60,
Gearbox 70,
Power transmission shaft 80,
Differential mechanism shell 90,
Embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality
Accompanying drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, shown
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on this practicality
Embodiment in new, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of the utility model protection.Therefore, the implementation of the present utility model to providing in the accompanying drawings below
The detailed description of mode is not intended to limit claimed the scope of the utility model, but is merely representative of of the present utility model
Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under the premise of dynamic, belong to the scope of the utility model protection.
In description of the present utility model, it is to be understood that the orientation or position relationship of the instruction such as term " on ", " under "
Based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplifying description, without referring to
Show or imply that the equipment of meaning or element there must be specific orientation, with specific azimuth configuration and operation, therefore can not manage
Solve as to limitation of the present utility model.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings：
Refer to Fig. 1 to Fig. 2, in embodiment, a kind of electric motor coach transmission system, including motor 20, gearbox 70,
Power transmission shaft 80, drive axle 10, double reduction part 30, differential part 40 and differential mechanism shell 90；The motor 20 and the change
Fast case 70 is connected and be arranged in parallel with the drive axle 10；The gearbox 70 passes through power transmission shaft 80 and the phase of differential part 40
Connection；The double reduction part 30 is connected with the differential part 40 and is arranged at the drive axle 10 and the differential mechanism shell
In 90 cavitys formed.Arrangement mode and structure as overall use can effectively realize that whole system arrangement is more reasonable,
Space availability ratio is high, the overall more compact miniaturization realized in structure, more arrangement spaces is vacateed for vehicle.
It refer to Fig. 1, in embodiment, the motor 20, gearbox 70, power transmission shaft 80 and differential mechanism shell 90 are set
Above the drive axle 10；The motor 20 and power transmission shaft 80, which are located at described the same side of gearbox 70 and be parallel to each other, to be set
Put, the utilization rate of the driving interior space can be effectively realized using such setting, while entirety is more minimized.
Driving gear set is arranged in the gearbox 70；The driving gear set includes driving gear and driven gear；
The drive rod of the driving gear and the motor 20 is coaxially connected；The driven gear coaxially connects with the power transmission shaft 80
Connect；The mode for using gear train to be driven can effectively realize that be arrangeding in parallel for the motor 20 and power transmission shaft 80 accounts for reduce
Use space.
It refer to Fig. 1, in embodiment, the power transmission shaft 80 is a gimbal coupling, the both ends of power transmission shaft 80 difference
It is fixed in a fixed seat 50 and is achieved a fixed connection by fixed seat 50 and the motor 20 and differential mechanism shell 90, is adopted
With such setting not only stabilized structure, while smoothly transfer gear box 70 it can arrive the power of differential part 40.
It refer to Fig. 2, in embodiment, distribution and cooperating is set up and down successively for the double reduction part 30 and differential part 40
Put；It is directly connected to using double reduction part 30 and the integrative-structure of differential part 40, then with motor 20, drive axle-free 80 passes
Pass, the transmission efficiency of power transmission shaft 80, while the overall more compact miniaturization realized in structure can be subtracted, vacateed more for vehicle
Arrangement space.
Further, the differential part 40 includes four bevel gears 41 being meshed, and integrally has a rectangular shape setting, described
The teeth portion of bevel gear 41 is inwardly；The drive bevel gear 411 and two faces that the bevel gear 41 is set including two faces are set
The driven wheel of differential 412 put；Described two drive bevel gears 411 are connected with the double reduction part 30；It is described two driven
Bevel gear 412 is fixedly connected with the phase of axletree 60 of two wheels respectively.
Further, the double reduction part 30 include be driven successively the first reduction gearing 31, the second reduction gearing 32,
3rd reduction gearing 33 and the 4th reduction gearing 34, the overall at right angles stepped distribution of double reduction part 30.
Specifically, first reduction gearing 31, the second reduction gearing 32, the 3rd reduction gearing 33 and the 4th reduction gearing
34 be helical gears；First reduction gearing 31 is fixedly and coaxially connected with the power transmission shaft 80；Described second slows down
The reduction gearing 33 of gear 32 and the 3rd is realized coaxially connected by a fixing axle；4th reduction gearing 34 and the initiative taper
Gear 411 is fixedly connected.Double reduction part 30 eliminates the structure of bevel gear 41 in traditional main reducing gear, is changed to helical teeth Cylinder Gear
Wheel, increases overall transmission efficiency.
The fixing hole passed through for the semiaxis 60 is provided with 4th reduction gearing 34；The axle of 4th reduction gearing 34
Two fixed seats 50 are fixedly installed on to the side side on direction；One has been respectively fixedly connected with each fixed seat 50
Individual drive bevel gear 411；4th reduction gearing 34 drives the drive bevel gear 411 to rotate, the drive bevel gear 411
Drive the driven wheel of differential 412 to rotate and drive two semiaxis 60 in the drive axle 10 to rotate so as to realize.
In addition, the motor 20 is installed on below body platform, to realize reduction unsprung mass, improves vehicle
Comfortableness.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements done etc., the utility model should be included in
Within the scope of protection.
Claims (9)
- A kind of 1. electric motor coach transmission system, it is characterised in that：Including motor, gearbox, power transmission shaft, drive axle, two level Reduction, differential part and differential mechanism shell；The motor is connected with the gearbox and parallel with the drive axle set Put；The gearbox is connected by power transmission shaft with the differential part；The double reduction part be connected with the differential part and It is arranged in the cavity that the drive axle and the differential mechanism shell are formed；The differential part includes four cone teeth being meshed Wheel；The driven wheel of differential that the drive bevel gear and two faces that the bevel gear is set including two faces are set；It is described two Drive bevel gear is connected with the double reduction part；Described two driven wheels of differential respectively with two and half in the drive axle Axle is connected.
- 2. electric motor coach transmission system according to claim 1, it is characterised in that：The motor, gearbox, transmission Axle and differential mechanism shell are arranged above the drive axle；The motor and power transmission shaft be located at described gearbox the same side and It is arranged in parallel.
- 3. electric motor coach transmission system according to claim 2, it is characterised in that：Driving cog is arranged in the gearbox Wheel group；The driving gear set includes driving gear and driven gear；The drive rod of the driving gear and the motor It is coaxially connected；The driven gear and the power transmission shaft are coaxially connected.
- 4. electric motor coach transmission system according to claim 3, it is characterised in that：The power transmission shaft is a universal joint shaft coupling Device.
- 5. electric motor coach transmission system according to claim 1, it is characterised in that：The double reduction part and differential part according to Secondary distribution up and down is set.
- 6. electric motor coach transmission system according to claim 5, it is characterised in that：The double reduction part includes passing successively Dynamic the first reduction gearing, the second reduction gearing, the 3rd reduction gearing and the 4th reduction gearing；First reduction gearing and institute It is coaxially connected to state power transmission shaft；Second reduction gearing and the 3rd reduction gearing are realized coaxially connected by a fixing axle；It is described 4th reduction gearing is fixedly connected with the drive bevel gear.
- 7. electric motor coach transmission system according to claim 6, it is characterised in that：Confession is provided with 4th reduction gearing The fixing hole that the semiaxis passes through；Two fixations are fixedly installed on side side on the direction of the 4th reduction gearing axial direction Seat；A drive bevel gear has been respectively fixedly connected with each fixed seat；4th reduction gearing drives the active Bevel gear rotates, and the drive bevel gear drives the driven wheel of differential rotation.
- 8. electric motor coach transmission system according to claim 7, it is characterised in that：First reduction gearing, second subtract Fast gear, the 3rd reduction gearing and the 4th reduction gearing are helical gears.
- 9. electric motor coach transmission system according to claim 1, it is characterised in that：The motor is with being installed on vehicle body Below plate, to realize reduction unsprung mass, vehicle comfortableness is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720944800.8U CN207015146U (en) | 2017-07-31 | 2017-07-31 | A kind of electric motor coach transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720944800.8U CN207015146U (en) | 2017-07-31 | 2017-07-31 | A kind of electric motor coach transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207015146U true CN207015146U (en) | 2018-02-16 |
Family
ID=61482567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720944800.8U Active CN207015146U (en) | 2017-07-31 | 2017-07-31 | A kind of electric motor coach transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207015146U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10882389B2 (en) | 2016-05-06 | 2021-01-05 | Allison Transmission, Inc. | Axle assembly with electric motor |
| USD927578S1 (en) | 2018-09-27 | 2021-08-10 | Allison Transmission, Inc. | Axle assembly |
-
2017
- 2017-07-31 CN CN201720944800.8U patent/CN207015146U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10882389B2 (en) | 2016-05-06 | 2021-01-05 | Allison Transmission, Inc. | Axle assembly with electric motor |
| USD927578S1 (en) | 2018-09-27 | 2021-08-10 | Allison Transmission, Inc. | Axle assembly |
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