CN219988913U - Coaxial two-gear electric drive axle based on synchronizer control - Google Patents
Coaxial two-gear electric drive axle based on synchronizer control Download PDFInfo
- Publication number
- CN219988913U CN219988913U CN202321168716.3U CN202321168716U CN219988913U CN 219988913 U CN219988913 U CN 219988913U CN 202321168716 U CN202321168716 U CN 202321168716U CN 219988913 U CN219988913 U CN 219988913U
- Authority
- CN
- China
- Prior art keywords
- gear
- shaft
- driven gear
- synchronizer
- drive
- 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
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
Abstract
The utility model discloses a coaxial two-gear electric drive axle based on synchronizer control, which comprises a drive motor, a middle shaft, a first half shaft, a second half shaft and a differential mechanism, wherein a first-gear drive gear and a second-gear drive gear which are fixedly connected with the output shaft of the drive motor are arranged on the output shaft of the drive motor; the intermediate shaft is provided with a first-gear driven gear and a second-gear driven gear which are meshed with the first-gear driving gear and the second-gear driving gear in a one-to-one correspondence manner, and a synchronizer is arranged between the first-gear driven gear and the second-gear driven gear; the intermediate shaft is also provided with a main reduction driving gear which is meshed with the main reduction driven gear, the differential mechanism is connected with the main reduction driven gear through a differential mechanism shell, and two ends of the differential mechanism are respectively connected with wheels through a first half shaft and a second half shaft. The utility model adopts the synchronizer to realize two-gear speed change, and optimizes the power performance, the speed performance and the economy of the vehicle through the two-gear speed change; meanwhile, the coaxial arrangement of the motor output shaft and the half shaft is more compact in structure.
Description
Technical Field
The utility model relates to an electric drive axle, in particular to a coaxial two-gear electric drive axle based on synchronizer control.
Background
The existing pure electric vehicles generally use a single-motor single-stage reduction driving system, and the single-stage electric driving system is a single-gear reduction box, so that the gear ratio is fixed, and if the dynamic property is required to be improved, the gear ratio is required to be increased; if the maximum vehicle speed needs to be increased, the speed ratio needs to be decreased. The requirements of passing performance such as high speed and climbing ability are met, and the speed performance and the power performance are difficult to achieve.
Therefore, it is necessary to provide a coaxial two-gear electric drive axle based on synchronizer control, which meets the arrangement requirement of a small space while taking the power performance and the speed performance into consideration.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a coaxial two-gear electric drive axle based on synchronizer control, which meets the arrangement requirement of a small space while considering the power performance and the speed performance.
The utility model aims to solve the technical problems and adopts the technical scheme that the coaxial two-gear electric drive axle based on synchronizer control comprises a drive motor, an intermediate shaft, a first half shaft, a second half shaft and a differential mechanism, wherein a first-gear drive gear and a second-gear drive gear which are fixedly connected with the output shaft of the drive motor are arranged on the output shaft of the drive motor; the intermediate shaft is provided with a first-gear driven gear and a second-gear driven gear which are meshed with the first-gear driving gear and the second-gear driving gear in one-to-one correspondence, and a synchronizer is arranged between the first-gear driven gear and the second-gear driven gear; the middle shaft is further provided with a main reduction driving gear which is meshed with the main reduction driven gear, the differential mechanism is connected with the main reduction driven gear through a differential mechanism shell, and two ends of the differential mechanism are connected with wheels through the first half shaft and the second half shaft respectively.
Further, the first gear driving gear and the second gear driving gear are both coaxially arranged with an output shaft of the driving motor; the output shaft of the driving motor coincides with the central axis of the first half shaft and the central axis of the second half shaft.
Further, the first-gear driven gear and the second-gear driven gear are both sleeved on the intermediate shaft in an empty mode, the synchronizer is fixed on the intermediate shaft, and when the synchronizer moves towards the first-gear driven gear and is meshed with the first-gear driven gear, the first-gear driven gear is synchronous with the intermediate shaft; and when the synchronizer moves to the second-gear driven gear and is meshed with the second-gear driven gear, the second-gear driven gear is synchronous with the intermediate shaft.
Further, the main reduction driving gear is fixedly coupled with the intermediate shaft.
Compared with the prior art, the utility model has the following beneficial effects: the coaxial two-gear electric drive axle based on synchronizer control is provided with a drive motor connected with a first-gear drive gear and a second-gear drive gear, and the transmission of first-gear or second-gear power of the drive motor is controlled through the engagement and disengagement of the synchronizer and the first-gear driven gear or the second-gear driven gear, the power is transmitted to an intermediate shaft, and then the power is transmitted to a differential and a half shaft through a main reduction drive gear and a main reduction driven gear, so that a vehicle is driven to run; two-gear speed change is adopted to optimize the dynamic performance, the speed performance and the economy of the vehicle; meanwhile, the coaxial structural arrangement of the motor output shaft and the half shaft greatly saves the arrangement space on the vehicle.
Drawings
Fig. 1 is a schematic diagram of a coaxial two-gear electric drive axle based on synchronizer control according to an embodiment of the present utility model.
In the figure:
1. a wheel; 2. a driving motor; 3. a first gear driven gear; 4. a synchronizer; 5. a second gear driven gear; 6. a main reduction driving gear; 7. an intermediate shaft; 8. a second half shaft; 9. a differential; 10. a driving and subtracting driven gear; 11. a second gear drive gear; 12. a first gear drive gear; 13. a first half shaft.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
Fig. 1 is a schematic diagram of a coaxial two-gear electric drive axle based on synchronizer control according to an embodiment of the present utility model.
Referring to fig. 1, the coaxial two-gear electric drive axle based on synchronizer control in the embodiment of the utility model comprises a drive motor 2, an intermediate shaft 7, a first half shaft 13, a second half shaft 8 and a differential 9, wherein a first-gear drive gear 12 and a second-gear drive gear 11 which are fixedly connected with the output shaft of the drive motor 2 are arranged on the output shaft of the drive motor; the intermediate shaft 7 is provided with a first-gear driven gear 3 and a second-gear driven gear 5 which are meshed with the first-gear driving gear 12 and the second-gear driving gear 11 in one-to-one correspondence, and a synchronizer 4 is arranged between the first-gear driven gear 3 and the second-gear driven gear 5; the intermediate shaft 7 is also provided with a main reduction driving gear 6, the main reduction driving gear 6 is meshed with a main reduction driven gear 10, the differential mechanism 9 is connected with the main reduction driven gear 10 through a differential mechanism shell, and two ends of the differential mechanism 9 are respectively connected with the wheels 1 through a first half shaft 13 and a second half shaft 8.
Specifically, the first-gear driven gear 3 and the second-gear driven gear 5 are both sleeved on the intermediate shaft 7 in an empty mode, the synchronizer 4 is fixed on the intermediate shaft 7, and when the synchronizer 4 moves towards the first-gear driven gear 3 and is meshed with the first-gear driven gear 3, the first-gear driven gear 3 is synchronous with the intermediate shaft 7; when the synchronizer 4 moves toward the second-speed driven gear 5 and meshes with the second-speed driven gear 5, the second-speed driven gear 5 is synchronized with the intermediate shaft 7. The main reduction driving gear 6 is fixedly connected with the intermediate shaft 7; the differential housing to which the driving and driven gears 10 are attached is blank over the first half shaft 13.
Preferably, the first gear driving gear 12 and the second gear driving gear 11 are both coaxially arranged with the output shaft of the driving motor 2; the output shaft of the drive motor 2 coincides with the central axis of the first half shaft 13 and the central axis of the second half shaft 8. The coaxial arrangement of the driving motor 2 and the half shaft has a more compact structure, and the arrangement space on the vehicle is greatly saved.
The coaxial two-gear electric drive axle based on synchronizer control provided by the embodiment of the utility model has the following working modes when in actual use: a drive mode and a braking energy recovery mode; the drive modes include a motor first gear drive mode and a motor second gear drive mode. The operating mode and motor status are shown in table 1 below:
table 1 working mode and motor status table
Motor first gear drive mode: the driving motor 2 is in a driving state, and the synchronizer 4 is meshed with the first-gear driven gear 3; the power of the driving motor 2 is transmitted to the first half shaft 13 and the second half shaft 8 through the first gear driving gear 12, the first gear driven gear 3, the intermediate shaft 7, the main reduction driving gear 6, the main reduction driven gear 10 and the differential 9 in order to drive the wheels 1 to rotate.
Motor second gear drive mode: the driving motor 2 is in a driving state, and the synchronizer 4 is meshed with the second-gear driven gear 5; the power of the driving motor 2 is transmitted to the first half shaft 13 and the second half shaft 8 through the second gear driving gear 11, the second gear driven gear 5, the intermediate shaft 7, the main reduction driving gear 6, the main reduction driven gear 10 and the differential mechanism 9 in sequence to drive the wheels 1 to rotate.
Braking energy recovery first gear mode: the driving motor 2 is used for braking energy recovery, the synchronizer 4 is meshed with the first-gear driven gear 3, the power transmission mode is identical to the first-gear driving mode of the motor, and only the power transmission direction is opposite to the first-gear driving mode of the motor.
Braking energy recovery second gear mode: the driving motor 2 is used for braking energy recovery, and the synchronizer 4 is meshed with the second-gear driven gear 5; the power transmission mode is identical to the motor second gear driving mode, and only the power transmission direction is opposite to the motor second gear driving mode.
In summary, in the coaxial two-gear electric drive axle based on synchronizer control according to the embodiment of the present utility model, the driving motor 2 connected to the first-gear driving gear 12 and the second-gear driving gear 11 is provided, and the transmission of the first-gear or second-gear power of the driving motor 2 is controlled by the engagement and disengagement of the synchronizer 4 and the first-gear driven gear 3 or the second-gear driven gear 5, the power is transmitted to the intermediate shaft 7, and then transmitted to the differential 9 and the half shaft by the main reduction driving gear 6 and the main reduction driven gear 10, so as to drive the vehicle to travel; two-gear speed change is adopted to optimize the dynamic performance, the speed performance and the economy of the vehicle; meanwhile, the coaxial structural arrangement of the motor and the half shaft greatly saves the arrangement space on the vehicle.
While the utility model has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (4)
1. The coaxial two-gear electric drive axle based on synchronizer control is characterized by comprising a drive motor, a middle shaft, a first half shaft, a second half shaft and a differential mechanism, wherein a first-gear drive gear and a second-gear drive gear which are fixedly connected with the output shaft of the drive motor are arranged on the output shaft of the drive motor; the intermediate shaft is provided with a first-gear driven gear and a second-gear driven gear which are meshed with the first-gear driving gear and the second-gear driving gear in one-to-one correspondence, and a synchronizer is arranged between the first-gear driven gear and the second-gear driven gear; the middle shaft is further provided with a main reduction driving gear, the main reduction driving gear is meshed with a main reduction driven gear, the differential mechanism is connected with the main reduction driven gear through a differential mechanism shell, and two ends of the differential mechanism are connected with wheels through the first half shaft and the second half shaft respectively.
2. The synchronizer control-based coaxial two-gear electric drive axle according to claim 1, wherein the first-gear drive gear and the second-gear drive gear are both coaxially arranged with an output shaft of the drive motor; the output shaft of the driving motor coincides with the central axis of the first half shaft and the central axis of the second half shaft.
3. The synchronizer control-based coaxial two-gear electric drive axle according to claim 1, wherein the first-gear driven gear and the second-gear driven gear are both sleeved on the intermediate shaft, the synchronizer is fixed on the intermediate shaft, and the first-gear driven gear is synchronous with the intermediate shaft when the synchronizer moves towards the first-gear driven gear and is meshed with the first-gear driven gear; and when the synchronizer moves to the second-gear driven gear and is meshed with the second-gear driven gear, the second-gear driven gear is synchronous with the intermediate shaft.
4. The synchronizer control-based coaxial two-speed electric drive axle of claim 1, wherein the main reduction drive gear is fixedly coupled with the intermediate shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321168716.3U CN219988913U (en) | 2023-05-16 | 2023-05-16 | Coaxial two-gear electric drive axle based on synchronizer control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321168716.3U CN219988913U (en) | 2023-05-16 | 2023-05-16 | Coaxial two-gear electric drive axle based on synchronizer control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219988913U true CN219988913U (en) | 2023-11-10 |
Family
ID=88614084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321168716.3U Active CN219988913U (en) | 2023-05-16 | 2023-05-16 | Coaxial two-gear electric drive axle based on synchronizer control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219988913U (en) |
-
2023
- 2023-05-16 CN CN202321168716.3U patent/CN219988913U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202641339U (en) | Twin-motor double-gear electric driving system | |
| JP2020506105A (en) | Drive assembly for horizontal dual power source vehicle | |
| JP2020506839A (en) | Drive assembly for horizontal dual power source vehicle | |
| CN112356647B (en) | Multi-motor flexible torque centralized driving synthesis box and electric vehicle | |
| CN210970550U (en) | Double-motor electric drive axle assembly with wheel-side speed reducer | |
| CN216709004U (en) | Power driving system and vehicle with same | |
| CN109466296B (en) | Central integrated double-motor double-reducer electric drive axle assembly | |
| CN112477570B (en) | Drive synthesis device and electric vehicle | |
| CN112277612A (en) | Electric drive system and electric vehicle | |
| CN213199442U (en) | Modular electric drive axle system | |
| CN219988913U (en) | Coaxial two-gear electric drive axle based on synchronizer control | |
| CN210309923U (en) | Integrated electric axle of miniature electric vehicle | |
| CN112277611A (en) | Electric vehicle and integrated driving system thereof | |
| CN215850710U (en) | Coaxial integrated double-motor double-speed-ratio electric drive assembly and electric vehicle | |
| CN109624681B (en) | Double-motor power transmission system for electric automobile | |
| CN211000772U (en) | Double-motor integrated two-gear AMT double-speed parallel shaft output two-stage speed reduction electric drive axle | |
| CN109835167B (en) | Two-gear differential coupling hybrid power transmission system with P3 structure | |
| CN219769544U (en) | Coaxial double-motor two-gear electric drive axle based on synchronizer control | |
| CN112477571A (en) | Multi-motor driving device and electric vehicle | |
| CN112519500A (en) | Two-level speed reduction electric drive axle integrating two-gear AMT double-speed parallel shaft output of double motors | |
| CN219769642U (en) | Parallel shaft type double-motor two-gear electric drive axle based on clutch control | |
| CN220562527U (en) | Double-motor coaxial electric drive axle | |
| CN219388549U (en) | Two-gear pure electric driving system | |
| CN216184431U (en) | Two grades of electric drive axles of bi-motor | |
| CN216733762U (en) | Electric drive axle and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |