CN212765497U - Three-level speed reduction parallel shaft installation electric bridge assembly - Google Patents
Three-level speed reduction parallel shaft installation electric bridge assembly Download PDFInfo
- Publication number
- CN212765497U CN212765497U CN202020686098.1U CN202020686098U CN212765497U CN 212765497 U CN212765497 U CN 212765497U CN 202020686098 U CN202020686098 U CN 202020686098U CN 212765497 U CN212765497 U CN 212765497U
- Authority
- CN
- China
- Prior art keywords
- motor
- shaft
- axle
- half shaft
- speed reduction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000009467 reduction Effects 0.000 title claims abstract description 40
- 238000009434 installation Methods 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 abstract description 8
- 230000010354 integration Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 10
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Landscapes
- Retarders (AREA)
- Motor Power Transmission Devices (AREA)
Abstract
The utility model provides a three-level speed reduction parallel shaft installation electric bridge assembly, which comprises a motor, a three-level speed reduction gear set, a cylindrical gear differential mechanism, a left half shaft and a right half shaft, wherein the output end of the motor is connected with the cylindrical gear differential mechanism through the three-level speed reduction gear set, the output end of the cylindrical gear differential mechanism is respectively connected with the left half shaft and the right half shaft, and the left half shaft and the right half shaft are used for connecting left and right wheels; the axes of the three-stage reduction gears are parallel; the motor shaft is parallel to the axle axis, and the motor, the three-stage reduction gear set and the cylindrical gear differential shaft are arranged in the middle of the axle. The utility model discloses the system integration level is high, compact structure, and occupation space is little.
Description
Technical Field
The utility model belongs to the technical field of the axle transmission, concretely relates to tertiary speed reduction parallel shaft axle installation electric bridge assembly.
Background
In the face of increasingly stringent requirements of fuel consumption and emission regulations of automobiles, more and more automobile manufacturers consider adopting a driving motor to replace a traditional engine, and forming an electric drive axle system together with a speed reducer and a differential to realize the electric driving of the driving system. The pure electric vehicle is used as a future vehicle development direction capable of relieving energy problems and environmental problems, more and more scientific research institutions, universities and enterprises increase the investment on the research of the pure electric vehicle, the novel pure electric vehicle mainly adopts electric transmission, and compared with the traditional mechanical transmission, the electric transmission has many advantages, such as whole vehicle structural arrangement, stepless speed change and improvement of the whole vehicle dynamic performance and economic performance, but because of the limitation of a motor and a control technology thereof, the pure electric vehicle can not exert the advantages to the maximum, the problems of too wide motor rotating speed range, poor differential control effect and the like are increasingly prominent. The transmission mode of the motor is small in gear ratio, the variable speed output of the motor cannot be well realized, the working strength of the motor is increased, the transmission mode is not stable in operation, and the motor cannot be well adapted to high-speed operation of the motor.
The electric drive axle with reduction gear and differential has been proposed among the prior art, discloses a tertiary speed reduction electric drive axle of horizontal integrated form like chinese patent CN208021190U, including the axle housing, be equipped with differential, semi-axis in the axle housing, semi-axis connection wheel hub, wheel hub is equipped with hydraulic brake, manual brake parking brake, still includes driving motor, driving motor passes through the power input shaft and transmits power to three-gear main reducer, three-gear main reducer connects differential, the semi-axis is connected to the differential, the semi-axis drives wheel hub and rotates. The structure is a three-level speed reduction electric drive axle, and can realize large-speed-ratio speed reduction.
The prior art still has some defects. Only be in the same place tertiary reduction gear is integrated, and differential mechanism sets up inside the axle housing, and its integrated level is not high, and the motor casing still needs the erection joint between differential mechanism shell and the reduction gear shell, and the structure is complicated, and it is great to have caused the volume of transaxle, and it is great to match the space requirement with whole car, and the suitability is not good.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tertiary speed reduction parallel shaft axle installation electric bridge assembly, it is not high to aim at solving current electric drive axle assembly's of taking tertiary reduction gear integration level, and the motor casing still needs the erection joint between differential case and the reduction gear casing, and the structure is complicated, and the volume that has caused the transaxle is great, and it is great to match the space requirement with whole car, and the not good scheduling problem of suitability.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
the utility model provides a three-level speed reduction parallel shaft installation electric bridge assembly, which comprises a motor, a three-level speed reduction gear set, a cylindrical gear differential mechanism, a left half shaft and a right half shaft, wherein the output end of the motor is connected with the cylindrical gear differential mechanism through the three-level speed reduction gear set, the output end of the cylindrical gear differential mechanism is respectively connected with the left half shaft and the right half shaft, and the left half shaft and the right half shaft are used for connecting left and right wheels; the axes of the three-stage reduction gear set are parallel; the motor shaft is parallel to the axle axis, and the motor, the three-stage reduction gear set and the cylindrical gear differential shaft are arranged in the middle of the axle.
Furthermore, the motor is installed in the motor casing, and tertiary reduction gear set and cylindrical gear differential are integrated in integrated casing.
Furthermore, the integrated shell and the motor shell are used as the middle part of the axle and are respectively connected with the left axle pipe and the right axle pipe.
The utility model has the advantages that:
1. the system has high integration level, compact structure, small occupied space, no need of a transmission shaft, and the battery pack can be arranged in the middle of the vehicle girder
2. With the development of motor technology towards high speed, the motor can be used at about 15000rpm at present, the motor has light weight and large power density
3. The weight and the number of parts of the whole vehicle are reduced, and the cost of the whole vehicle is reduced after large-scale production
4. Compared with a wheel edge motor and a wheel hub motor, the traditional rear axle has fewer parts to be changed
5. If the scheme of the transmission is adopted, the ratio of the motor working in a high-efficiency area is larger, the energy consumption of the whole vehicle is further reduced, and the wheel-side motor and the wheel-hub motor are difficult to realize
6. And the cylindrical gear differential is used, so that the gear engagement is stable and the transmission is stable.
Drawings
Fig. 1 is a schematic structural view of a three-level deceleration parallel shaft axle installation bridge assembly according to the present invention.
In the figure, 1, a left wheel; 2. a left bridge tube; 3. a left half shaft; 4. an integrated housing; 5. a cylindrical gear differential; 6. a third reduction gear set; 7. a motor stator; 8. a motor rotor; 9. a motor housing; 10. a right bridge tube; 11 a right half shaft; 12. and a right wheel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is further described in detail by the following embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
A three-level speed reduction parallel shaft installation electric bridge assembly comprises a motor, a three-level speed reduction gear set 6, a cylindrical gear differential 5, a left half shaft 3 and a right half shaft 11, wherein the motor comprises a motor stator 7 and a motor rotor 8, the motor stator 7 is fixed on a motor shell 9, the motor rotor 8 is arranged in a space enclosed by the motor stator 7, the motor rotor 8 is connected with a motor shaft, the motor shaft is connected with the cylindrical gear differential 5 through the three-level speed reduction gear set 6, the output end of the cylindrical gear differential 5 is respectively connected with the left half shaft 3 and the right half shaft 11, and the left half shaft 3 and the right half shaft 11 are used for being connected with a left wheel 1 and a right; the axes of the reduction gears of the three-stage reduction gear set 6 are parallel; the motor shaft is parallel to the axle axis, and the motor, the three-stage reduction gear set 6 and the cylindrical gear differential shaft 5 are arranged in the middle of the axle.
The utility model discloses a power transmission route: the power output by the motor is transmitted to wheels on the left side and the right side through the cylindrical gear differential 5 after the speed reduction and torque increase of the three-level reduction gear set 6.
The utility model discloses a tertiary speed reduction realizes big velocity ratio speed reduction, and great output power is realized to the increase moment of torsion. In order to meet the characteristic of high-speed output of the differential, the straight bevel gear is replaced by the straight spur gear, so that the manufacturing and mounting precision of the gear is ensured, and the uniform meshing and stable power output of the gear at high speed are ensured. The electric drive axle motor occupies most of the space, and the space provided for the differential is usually small, so the differential must meet the requirement of relatively small appearance size, which is mainly reflected in the axial size in comparison with the bevel gear differential. In the axial dimension, the gear tooth width is mainly embodied in the gear tooth width, the gear tooth width is used for judging the standard of the transmission torque, the wider the gear tooth meshing is, the larger the torque capable of being transmitted is, the wide gear tooth meshing design is, and the differential gear needs more structural space in the axial direction. The motor shaft is parallel to the axle axis, making the installation more compact. The axle mounting mode is adopted, and the axle mounting mode and the axle are integrated into a whole, so that parts are reduced.
As a further preferred solution, the motor is mounted in a motor housing 9, and the three-stage reduction gear set 6 and the spur gear differential 5 are integrated in the integrated housing 4. The speed reducer shell and the differential shell are integrated, so that the assembly process is simplified, the size is smaller, and the adaptability of the whole vehicle is better.
Further, the integrated shell 4 and the motor shell 9 are used as the middle part of the axle and are respectively connected with the left axle pipe 2 and the right axle pipe 10.
Having thus described several aspects of at least one embodiment of this invention, it is to be appreciated various alterations, modifications, and improvements will readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be within the spirit and scope of the invention.
Claims (3)
1. The utility model provides a three-level speed reduction parallel shaft axle installation electric bridge assembly which characterized in that: the output end of the motor is connected with the cylindrical gear differential through the three-level reduction gear set, the output end of the cylindrical gear differential is respectively connected with a left half shaft and a right half shaft, and the left half shaft and the right half shaft are used for being connected with left and right wheels; the axes of the three-stage reduction gear set are parallel; the motor shaft is parallel to the axle axis, and the motor, the three-stage reduction gear set and the cylindrical gear differential shaft are arranged in the middle of the axle.
2. The three-stage deceleration parallel shaft mounted bridge assembly according to claim 1, wherein: the motor is installed in the motor casing, and tertiary reduction gear set and cylindrical gear differential are integrated in integrated casing.
3. The three-stage deceleration parallel shaft mounted bridge assembly of claim 2, wherein: the integrated shell and the motor shell are used as the middle part of the axle and are respectively connected with the left axle pipe and the right axle pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020686098.1U CN212765497U (en) | 2020-04-29 | 2020-04-29 | Three-level speed reduction parallel shaft installation electric bridge assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020686098.1U CN212765497U (en) | 2020-04-29 | 2020-04-29 | Three-level speed reduction parallel shaft installation electric bridge assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212765497U true CN212765497U (en) | 2021-03-23 |
Family
ID=75066211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020686098.1U Active CN212765497U (en) | 2020-04-29 | 2020-04-29 | Three-level speed reduction parallel shaft installation electric bridge assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212765497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115157925A (en) * | 2022-08-01 | 2022-10-11 | 浙江吉利控股集团有限公司 | Electric drive axle assembly and vehicle |
-
2020
- 2020-04-29 CN CN202020686098.1U patent/CN212765497U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115157925A (en) * | 2022-08-01 | 2022-10-11 | 浙江吉利控股集团有限公司 | Electric drive axle assembly and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211231459U (en) | Double-motor transverse shiftable electric drive bridge reducer assembly | |
| CN211335437U (en) | High-trafficability dual-motor power-split drive axle | |
| EP3978283B1 (en) | Sunken wheel-side motor drive axle | |
| CN112519497A (en) | Split type double-motor coaxial wheel-side planet wheel speed reduction drive axle | |
| CN111469605A (en) | Integrated three-stage speed reduction electric drive axle | |
| CN212765497U (en) | Three-level speed reduction parallel shaft installation electric bridge assembly | |
| CN212332290U (en) | Non-axle installation electric bridge assembly of second grade speed reduction parallel shaft | |
| CN212737630U (en) | Integrated three-stage speed reduction electric drive axle | |
| CN216451248U (en) | Hub motor with output of planet carrier | |
| CN212332293U (en) | Integrated form second grade speed reduction electric drive axle | |
| CN212765499U (en) | Coaxial three-stage speed reduction electric drive axle | |
| CN212332294U (en) | Three-stage parallel gear speed reduction non-shaft bridge with two gears | |
| CN212765502U (en) | Two-stage speed reduction vertical axis non-axle installation electric bridge assembly | |
| CN212332285U (en) | Three-stage planet row speed reduction non-shaft installation electric bridge assembly | |
| CN211335438U (en) | Split type double-motor coaxial wheel-side planet wheel speed reduction drive axle | |
| CN212332298U (en) | Three-stage parallel gear reduction shaft installation electric bridge with two gears | |
| CN210733717U (en) | Electric drive axle with double motors and single-speed parallel shaft for reducing speed on pulley side | |
| CN211000771U (en) | Electric drive axle with double motors and single-speed parallel shaft output | |
| CN212765498U (en) | Three-level speed reduction parallel shaft bridge assembly | |
| CN217623099U (en) | Motor is indulged and is put formula driving system and car | |
| CN214727933U (en) | Three-level speed reduction double-motor vertical shaft electric drive axle assembly | |
| CN212765501U (en) | Three-stage planetary gear reduction shaft installation bridge | |
| CN212765500U (en) | Two-stage planetary gear speed reduction non-shaft installation electric bridge | |
| CN212332286U (en) | Three-level two-gear non-shaft installation electric bridge assembly | |
| CN2619829Y (en) | Double motor input speed reducer for electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220909 Address after: No. 9, Keyuan East 11th Road, High-tech Zone, Nanning City, Guangxi Zhuang Autonomous Region, 530009 Patentee after: Yuchaixinlan New Energy Power Technology Co.,Ltd. Address before: 537005 No. 88 flyover West Road, the Guangxi Zhuang Autonomous Region, Yulin Patentee before: Guangxi Yuchai Machinery Co.,Ltd. |