CN207021829U - A kind of electric motor coach drive device - Google Patents
A kind of electric motor coach drive device Download PDFInfo
- Publication number
- CN207021829U CN207021829U CN201720614563.9U CN201720614563U CN207021829U CN 207021829 U CN207021829 U CN 207021829U CN 201720614563 U CN201720614563 U CN 201720614563U CN 207021829 U CN207021829 U CN 207021829U
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- Prior art keywords
- reduction gearing
- shell
- electric motor
- drive device
- reduction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
A kind of electric motor coach drive device of the utility model, including shell, motor, double reduction part and differential part；The shell is fixedly installed on the drive shaft side of the motor；The double reduction part and differential part are arranged in the shell；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 mutually fixedly connected with the axletree of two wheels respectively.A kind of transmission efficiency of electric motor coach drive device 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 drive device.
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 main reducing gear of back axle is driven to being two-stage transmission between differential mechanism.One-level is that bevel gear is in 90 degree, 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 equivalent angle in design
Meet to require, transmission efficiency accordingly reduces.
Therefore, it is necessary to propose the electric motor coach drive device of a 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 drive device 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 drive device, including shell, motor, double reduction part and differential part；The shell is consolidated
Surely it is arranged at the drive shaft side of the motor；The double reduction part and differential part are arranged in the shell；It is described
Differential part includes four bevel gears being meshed；The bevel gear includes the drive bevel gear and two faces that two faces are set
The driven wheel of differential of setting；Described two drive bevel gears are connected with the double reduction part；Described two driven wheels of differential
Mutually it is fixedly connected with the axletree of two wheels respectively.
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 is fixedly and coaxially connected with the drive shaft；Described second
Reduction gearing and the 3rd reduction gearing are realized coaxially connected by a fixing axle；4th reduction gearing and the active conical tooth
Wheel is fixedly connected.
As a further improvement, it is provided with the fixing hole passed through for axletree in the 4th reduction gearing；Described 4th slows down
Two fixed seats are fixedly installed on side side on gear axial direction；It has been respectively fixedly connected with each fixed seat
One drive bevel gear；4th reduction gearing drives the drive bevel gear to rotate, described in the drive bevel gear drive
Driven wheel of differential rotates.
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 shell includes first shell portion and second shell portion；The first shell portion and described second
Several first screwed holes are provided with shell portion and are achieved a fixed connection by bolt；In the second shell portion and the motor
It is provided with several second screwed holes and is achieved a fixed connection by bolt.
Pass for the axletree as a further improvement, being provided with two through holes on the shell, be provided with outside the axletree
The bearing being engaged with the fixing hole is to realize the fixation to the 4th reduction gearing.
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 drive device 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.
2nd, the double reduction part in a kind of electric motor coach drive device of the utility model is eliminated in traditional main reducing gear
Bevel gear structure, is changed to helical gears, increases overall transmission efficiency.
3rd, a kind of electric motor coach drive device 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 drive device of the utility model；
Accompanying drawing 2 is a kind of internal structure schematic diagram of electric motor coach drive device of the utility model.
Main element symbol description
Shell 10, first shell portion 11, second shell portion 12,
Motor 20, drive shaft 21,
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,
Axletree 60,
First screwed hole 70,
Second screwed hole 80,
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：
It refer to Fig. 1 to Fig. 2, in embodiment, a kind of electric motor coach drive device, including shell 10, motor 20, two
Level reduction 30 and differential part 40；The shell 10 is fixedly installed on the side of drive shaft 21 of the motor 20；Described two
Level reduction 30 and differential part 40 are arranged in the shell 10；Drive device is integrally compact using such Stability Analysis of Structures, real
Now minimize and vacate more arrangement spaces for vehicle.
Fig. 2 is refer to, the differential part 40 includes four bevel gears 41 being meshed, integrally has a rectangular shape setting, institute
State the teeth portion of bevel gear 41 inwardly；The bevel gear 41 includes the drive bevel gear 411 and two faces that two faces are set
The driven wheel of differential 412 of setting；Described two drive bevel gears 411 are connected with the double reduction part 30；It is described two from
Dynamic bevel gear 412 is fixedly connected with the phase of axletree 60 of two wheels respectively.
Fig. 2 is refer to, the double reduction part 30 includes the first reduction gearing 31, the second reduction gearing being driven successively
32nd, the 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 drive shaft 21；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.
It refer to Fig. 2, in embodiment, the fixing hole passed through for axletree 60 be provided with the 4th reduction gearing 34；It is described
Two fixed seats 50 are fixedly installed on side side on the axial direction of 4th reduction gearing 34；In each fixed seat 50
It has been respectively fixedly connected with a drive bevel gear 411；4th reduction gearing 34 drives the drive bevel gear 411 to rotate,
The drive bevel gear 411 drives the driven wheel of differential 412 to rotate so as to realize that two axletrees 60 with motor car wheel rotate.
Running part is integrally using the integrative-structure of double reduction part 30 and differential part 40, then directly connect with motor 20
Connect, drive axle-free transmission, the transmission efficiency of power transmission shaft, while the overall more compact miniaturization realized in structure can be subtracted, be
Vehicle vacates more arrangement spaces, Stability Analysis of Structures, and function is easy.
It refer to Fig. 1, in embodiment, the shell 10 is adapted in calabash shaped with whole running part；The shell 10
Including first shell portion 11 and second shell portion 12；Several the first screw threads are provided with the first shell portion 11 and the second shell portion 12
Hole 70 is simultaneously achieved a fixed connection by bolt；Several second screw threads are provided with the second shell portion 12 and the motor 20
Hole 80 is simultaneously achieved a fixed connection by bolt.It is not only elegant in appearance using such appearance design and compact-sized firm, realize
The overall miniaturization of drive device.
Further, two through holes are provided with the shell 10 to pass for the axletree 60, are provided with outside the axletree 60
To realize the fixation to the 4th reduction gearing 34, the axletree 60 further passes through the bearing being engaged with the fixing hole
Universal joint and half axis connection, driving moment rotate.
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 (7)
- A kind of 1. electric motor coach drive device, it is characterised in that：Including shell, motor, double reduction part and differential part；Institute State the drive shaft side that shell is fixedly installed on the motor；The double reduction part and differential part are arranged at the shell It is interior；The differential part includes four bevel gears being meshed；The bevel gear include the drive bevel gear that two faces set and The driven wheel of differential that two faces are set；Described two drive bevel gears are connected with the double reduction part；It is described two from Dynamic bevel gear is mutually fixedly connected with the axletree of two wheels respectively.
- 2. electric motor coach drive device according to claim 1, 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 Drive shaft is stated to be fixedly and coaxially connected；Second reduction gearing and the 3rd reduction gearing are realized coaxially connected by a fixing axle； 4th reduction gearing is fixedly connected with the drive bevel gear.
- 3. electric motor coach drive device according to claim 2, it is characterised in that：Confession is provided with 4th reduction gearing The fixing hole that axletree passes through；Two fixed seats are fixedly installed on side side on the direction of the 4th reduction gearing axial direction； A drive bevel gear has been respectively fixedly connected with each fixed seat；4th reduction gearing drives the active conical tooth Wheel rotation, the drive bevel gear drive the driven wheel of differential rotation.
- 4. electric motor coach drive device according to claim 3, it is characterised in that：First reduction gearing, second subtract Fast gear, the 3rd reduction gearing and the 4th reduction gearing are helical gears.
- 5. electric motor coach drive device according to claim 4, it is characterised in that：The shell includes first shell portion and the Two shell portions；Several first screwed holes are provided with the first shell portion and the second shell portion and fixed connect is realized by bolt Connect；Several second screwed holes are provided with the second shell portion and the motor and are achieved a fixed connection by bolt.
- 6. electric motor coach drive device according to claim 5, it is characterised in that：Two through holes are provided with the shell to supply The axletree is passed, and the bearing that is engaged with the fixing hole is provided with outside the axletree to realize to the 4th reduction gearing Fixation.
- 7. electric motor coach drive device 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 |
|---|---|---|---|
| CN201720614563.9U CN207021829U (en) | 2017-05-27 | 2017-05-27 | A kind of electric motor coach drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720614563.9U CN207021829U (en) | 2017-05-27 | 2017-05-27 | A kind of electric motor coach drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207021829U true CN207021829U (en) | 2018-02-16 |
Family
ID=61477461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720614563.9U Active CN207021829U (en) | 2017-05-27 | 2017-05-27 | A kind of electric motor coach drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207021829U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD869348S1 (en) | 2016-06-06 | 2019-12-10 | Allison Transmission, Inc. | Gearbox assembly for an axle |
| 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 |
| US11247556B2 (en) | 2015-12-17 | 2022-02-15 | Allison Transmission, Inc. | Axle assembly for a vehicle |
-
2017
- 2017-05-27 CN CN201720614563.9U patent/CN207021829U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11247556B2 (en) | 2015-12-17 | 2022-02-15 | Allison Transmission, Inc. | Axle assembly for a vehicle |
| US11951828B2 (en) | 2015-12-17 | 2024-04-09 | Allison Transmission, Inc. | Axle assembly for a vehicle |
| US10882389B2 (en) | 2016-05-06 | 2021-01-05 | Allison Transmission, Inc. | Axle assembly with electric motor |
| USD869348S1 (en) | 2016-06-06 | 2019-12-10 | Allison Transmission, Inc. | Gearbox assembly for an axle |
| USD927578S1 (en) | 2018-09-27 | 2021-08-10 | Allison Transmission, Inc. | Axle assembly |
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| GR01 | Patent grant |