CN112810433A - Parallel shaft electric drive axle with planet row - Google Patents
Parallel shaft electric drive axle with planet row Download PDFInfo
- Publication number
- CN112810433A CN112810433A CN202010695002.2A CN202010695002A CN112810433A CN 112810433 A CN112810433 A CN 112810433A CN 202010695002 A CN202010695002 A CN 202010695002A CN 112810433 A CN112810433 A CN 112810433A
- Authority
- CN
- China
- Prior art keywords
- gear
- planet
- planetary
- gears
- axis
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
Abstract
The embodiment of the invention discloses a parallel-axis electric drive axle with a planet row, which comprises a drive motor, a planet gear speed reducing mechanism, a first gear, a second gear, a differential and a shell, wherein the second gear is coaxial with the differential. The power output shaft of the driving motor is connected with the input end of the planetary gear speed reducing mechanism, the output end of the planetary gear speed reducing mechanism is connected with the first gear, the first gear is meshed with the second gear, the second gear is fixedly connected with the differential mechanism, and the differential mechanism is connected with the wheels.
Description
Technical Field
The invention relates to the technical field of electric drive bridges, in particular to a parallel-axis electric drive bridge with a planet row.
Background
Currently, more and more vehicles use parallel-axle electric transaxles to achieve pure electric drive of the wheels.
The parallel shaft electric drive axle in the prior art comprises a drive motor, an input shaft gear, an intermediate shaft large gear, an intermediate shaft small gear, an output shaft gear and a differential mechanism, wherein a power output shaft of the drive motor transmits power to the input shaft gear, the input shaft gear drives the intermediate shaft small gear to rotate, the intermediate shaft small gear drives the intermediate shaft large gear to rotate, the intermediate shaft large gear drives the output shaft gear to rotate, and the output shaft gear transmits power to the differential mechanism.
Therefore, the parallel shaft electric drive axle in the prior art uses three parallel shaft gears for transmission, and the common three-shaft parallel shaft transmission mode has low transmission efficiency, low transmission stability and high noise, thereby further causing poor transmission effect.
Disclosure of Invention
The invention provides a parallel shaft electric drive axle with a planet row, which can improve the transmission efficiency, improve the transmission stability, has low noise and further improve the transmission effect. The specific technical scheme is as follows:
in a first aspect, the invention provides a parallel-axis electric drive axle with a planet row, which comprises a drive motor, a planet gear speed reducing mechanism, a first gear, a second gear, a differential and a shell, wherein the reference circle diameter of the first gear is smaller than that of the second gear;
the second gear is coaxial with the differential, and the driving motor, the planetary gear reduction mechanism, the first gear, the second gear and the differential are all arranged in the shell;
the power output shaft of the driving motor is connected with the input end of the planetary gear speed reducing mechanism, the output end of the planetary gear speed reducing mechanism is connected with the first gear, the first gear is meshed with the second gear, the second gear is fixedly connected with the differential, and the differential is connected with wheels.
Optionally, the planetary gear reduction mechanism comprises a first sun gear, a plurality of first planet gears, a first planet carrier and a ring gear;
the first sun gear, the first planet carrier, the ring gear and the first gears are coaxial, and the axis of each first planet gear, the axis of the second gear and the axis of the first sun gear are parallel to each other;
the power output shaft of the driving motor is connected with the first sun gear, the first sun gear is externally meshed with the first planetary gears, the first planetary gears are mounted on the first planet carrier, the gear ring is fixedly mounted on the inner wall of the shell, the first planetary gears are internally meshed with the gear ring, and the first planet carrier is fixedly connected with the first gear.
Optionally, the first planet carrier includes a plurality of first planet pins, each first planet pin having an axis parallel to an axis of the first sun gear, the plurality of first planet pins being respectively mounted to the plurality of first planet pins through needle bearings, wherein the number of first planet pins is the same as the number of first planet pins.
Optionally, the number of the first planet gears is three.
Optionally, the first sun gear and the power output shaft are integrally formed.
Optionally, the first sun gear is splined to the power output shaft.
Optionally, the planetary gear reduction mechanism includes a second sun gear, a third sun gear, a plurality of second planet gears, a plurality of third planet gears and a second planet carrier, wherein a pitch circle diameter of the second sun gear is smaller than a pitch circle diameter of the third sun gear, a pitch circle diameter of the second planet gears is smaller than a pitch circle diameter of the third planet gears, and the number of the second planet gears is the same as the number of the third planet gears;
the second sun gear, the third sun gear and the first gear are coaxial, and the axis of each second planetary gear, the axis of each third planetary gear, the axis of the second gear and the axis of the second sun gear are parallel to each other;
the power output shaft of the driving motor is connected with the second sun gear, the second sun gear is externally meshed with the plurality of second planetary gears, the plurality of second planetary gears are respectively externally meshed with the plurality of third planetary gears, the plurality of third planetary gears are externally meshed with the third sun gear, the third sun gear is fixedly installed on the inner wall of the shell, the plurality of second planetary gears and the plurality of third planetary gears are installed on the second planet carrier, and the second planet carrier is fixedly connected with the first gear.
Optionally, the second planet carrier comprises a plurality of second planet pins and a plurality of third planet pins;
an axis of each second planet gear shaft, an axis of each third planet gear shaft, and an axis of the second sun gear are parallel to each other, the plurality of second planet gears are respectively mounted to the plurality of second planet gear shafts through needle bearings, and the plurality of third planet gears are respectively mounted to the plurality of third planet gear shafts through needle bearings, wherein the number of the second planet gear shafts is the same as the number of the second planet gears, and the number of the third planet gear shafts is the same as the number of the third planet gears.
Optionally, the number of the second planetary gears and the number of the third planetary gears are three.
Optionally, the second sun gear and the power output shaft are integrally formed.
As can be seen from the above, the parallel-axis electric drive axle with a planetary row according to the embodiment of the present invention includes a driving motor, a planetary gear reduction mechanism, a first gear, a second gear, a differential and a housing, wherein a pitch circle diameter of the first gear is smaller than a pitch circle diameter of the second gear, the second gear is coaxial with the differential, and the driving motor, the planetary gear reduction mechanism, the first gear, the second gear and the differential are all mounted in the housing. The power output shaft of the driving motor is connected with the input end of the planetary gear speed reducing mechanism, the output end of the planetary gear speed reducing mechanism is connected with the first gear, the first gear is meshed with the second gear, the second gear is fixedly connected with the differential mechanism, and the differential mechanism is connected with the wheels. Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention.
The innovation points of the embodiment of the invention comprise:
1. the parallel shaft electric drive axle with the planet row provided by the embodiment of the invention is driven by the planet gear speed reducing mechanism, and because the transmission efficiency and the transmission stability of the planet gear speed reducing mechanism are both higher than those of the common three-shaft parallel shaft transmission, and the noise generated by the planet gear speed reducing mechanism is lower than that of the common three-shaft parallel shaft transmission, the transmission efficiency can be improved, the transmission stability is improved, the noise is lower, and the transmission effect is further improved.
2. Compared with the common three-shaft parallel shaft transmission, the three-shaft parallel shaft transmission mechanism has the advantages that the intermediate shaft is removed, the distance between the motor and the axle is reduced, the structure compactness is improved, the size is reduced, and the weight is reduced.
3. Because the speed ratio obtained by the planetary gear speed reducing mechanism is larger than that obtained by the transmission of the common three-axis parallel shaft, and the load borne by the planetary gear speed reducing mechanism is larger than that borne by the transmission of the common three-axis parallel shaft, the speed ratio and the load borne by the planetary gear speed reducing mechanism are also improved.
4. Since the second planetary gear reduction mechanism is a double planetary gear reduction mechanism, which is equivalent to one time more planetary gears than the first planetary gear reduction mechanism, the rotational speed of each planetary gear of the second planetary gear reduction mechanism is reduced, and therefore, a higher torque can be received.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is to be understood that the drawings in the following description are merely exemplary of some embodiments of the invention. For a person skilled in the art, without inventive effort, further figures can be obtained from these figures.
FIG. 1 is a first schematic diagram of a parallel-axis electric drive axle with a planetary row according to an embodiment of the present invention;
FIG. 2 is a second structural schematic diagram of a parallel-axis electric drive axle with a planetary row according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a planetary gear reduction mechanism according to an embodiment of the present invention.
In fig. 1-3, 1 drive motor, 2 first gear, 3 second gear, 4 differential, 5 housing, 6 first sun gear, 7 first planet gear, 8 first planet carrier, 9 ring gear, 10 second sun gear, 11 third sun gear, 12 second planet gear, 13 third planet gear, 14 second planet carrier.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
It is to be noted that the terms "comprises" and "comprising" and any variations thereof in the embodiments and drawings of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
The embodiment of the invention discloses a parallel shaft electric drive axle with a planet row, which can improve the transmission efficiency, improve the transmission stability, has low noise and further improve the transmission effect. The following provides a detailed description of embodiments of the invention.
Fig. 1 is a first structural schematic diagram of a parallel-axis electric drive axle with a planetary row according to an embodiment of the present invention. Fig. 2 is a second structural diagram of a parallel-axis electric drive axle with a planetary row according to an embodiment of the present invention.
Referring to fig. 1-2, the parallel-axis electric drive axle with a planetary row provided by the embodiment of the invention comprises a drive motor 1, a planetary gear speed reducing mechanism, a first gear 2, a second gear 3, a differential 4 and a shell 5, wherein the reference circle diameter of the first gear 2 is smaller than that of the second gear 3.
The second gear 3 is coaxial with the differential 4, and the driving motor 1, the planetary gear reduction mechanism, the first gear 2, the second gear 3 and the differential 4 are all installed in the shell 5.
The input end of the planetary gear speed reducing mechanism is used as a power input end and is rigidly connected with a power output shaft of the driving motor 1, namely the power output shaft of the driving motor 1 is connected with the input end of the planetary gear speed reducing mechanism. The output end of the planetary gear reduction mechanism is rigidly connected with the first gear 2 as a power output end, i.e. the output end of the planetary gear reduction mechanism is connected with the first gear 2. The first gear 2 is meshed with the second gear 3, the second gear 3 is fixedly connected with the differential 4, and the differential 4 is connected with wheels.
When the vehicle runs, power is transmitted to the planetary gear speed reducing mechanism from the power output shaft of the driving motor 1 and then transmitted to the first gear 2 from the planetary gear speed reducing mechanism, the first gear 2 drives the second gear 3 to rotate, the second gear 3 transmits the power to the differential mechanism 4, and finally the differential mechanism 4 transmits the power to the wheels to drive the wheels to rotate.
As can be seen from the above, the parallel-axis electric drive axle with a planetary row according to the embodiment of the present invention includes a drive motor 1, a planetary gear reduction mechanism, a first gear 2, a second gear 3, a differential 4, and a housing 5, wherein a pitch circle diameter of the first gear is smaller than a pitch circle diameter of the second gear, the second gear 3 is coaxial with the differential 4, and the drive motor 1, the planetary gear reduction mechanism, the first gear 2, the second gear 3, and the differential 4 are all mounted in the housing 5. The power output shaft of the driving motor 1 is connected with the input end of the planetary gear speed reducing mechanism, the output end of the planetary gear speed reducing mechanism is connected with the first gear 2, the first gear 2 is meshed with the second gear 3, the second gear 3 is fixedly connected with the differential mechanism 4, and the differential mechanism 4 is connected with the wheels.
Meanwhile, compared with the common three-shaft parallel shaft transmission, the embodiment of the invention removes the intermediate shaft, reduces the distance between the motor and the axle, increases the structural compactness, reduces the volume and lightens the weight, and because the speed ratio obtained by the planetary gear speed reducing mechanism is larger than that obtained by the common three-shaft parallel shaft transmission, the load carried by the planetary gear speed reducing mechanism is larger than that carried by the common three-shaft parallel shaft transmission, the speed ratio and the carried load are also improved.
The planetary gear speed reducing mechanism provided by the embodiment of the invention has various structures, including but not limited to the following two types:
a first planetary gear reduction mechanism:
with continued reference to fig. 1, the planetary gear reduction mechanism includes a first sun gear 6, a plurality of first planet gears 7, a first carrier 8, and a ring gear 9.
The first sun gear 6, the first carrier 8, the ring gear 9, and the first gear 2 are coaxial, and the axis of each of the first planetary gears 7, the axis of the second gear 3, and the axis of the first sun gear 6 are parallel to each other.
The power output shaft of the driving motor 1 is connected to the first sun gear 6, wherein the power output shaft is rigidly connected to the first sun gear 6 in various ways, including but not limited to the following two ways:
the first mode is as follows:
the power output shaft is splined to the first sun gear 6.
The second mode is as follows:
the first sun gear 6 may be formed integrally with the power take-off shaft.
With continued reference to fig. 1, the first sun gear 6 is externally engaged with a plurality of first planet gears 7, the plurality of first planet gears 7 are mounted to a first planet carrier 8, illustratively, the first planet carrier 8 includes a plurality of first planet gears shafts, each of the first planet gears shafts having an axis parallel to an axis of the first sun gear 6, the plurality of first planet gears 7 are respectively mounted to the plurality of first planet gears shafts through needle bearings, wherein the number of first planet gears shafts is the same as the number of first planet gears 7.
Exemplarily, the number of first planet gears 7 may be three.
The ring gear 9 is fixedly attached to the inner wall of the housing 5, the plurality of first planetary gears 7 are internally meshed with the ring gear 9, and the first carrier 8 is fixedly connected to the first gear 2.
When the power-driven wheel differential mechanism works, power is transmitted to a first sun gear 6 through a power output shaft of a driving motor 1, the first sun gear 6 drives a plurality of first planetary gears 7 to rotate around the first sun gear 6 in a gear ring 9, the plurality of first planetary gears 7 drive a first planet carrier 8 to rotate, the first planet carrier 8 drives a first gear 2 to rotate, the first gear 2 drives a second gear 3 to rotate, the second gear 3 transmits the power to the differential mechanism 4, and the differential mechanism 4 finally transmits the power to wheels to drive the wheels to rotate.
The purpose of transmission by the planetary gear reduction mechanism is thereby achieved by providing the first sun gear 6, the plurality of first planetary gears 7, the first carrier 8 and the ring gear 9.
Second planetary gear reduction mechanism:
fig. 3 is a schematic structural diagram of a planetary gear reduction mechanism provided in an embodiment of the present invention, and referring to fig. 2 to 3, the planetary gear reduction mechanism includes a second sun gear 10, a third sun gear 11, a plurality of second planet gears 12, a plurality of third planet gears 13, and a second planet carrier 14, wherein a pitch circle diameter of the second sun gear 10 is smaller than a pitch circle diameter of the third sun gear 11, a pitch circle diameter of the second planet gears 12 is smaller than a pitch circle diameter of the third planet gears 13, and the number of the second planet gears 12 is the same as the number of the third planet gears 13.
The second sun gear 10, the third sun gear 11 and the first gear 2 are coaxial, and the axis of each second planetary gear 12, the axis of each third planetary gear 13, the axis of the second gear 3 and the axis of the second sun gear 10 are parallel to each other.
The power output shaft of the driving motor 1 is connected to the second sun gear 10, wherein the power output shaft is rigidly connected to the second sun gear 10 in various ways, including but not limited to the following two ways:
the first mode is as follows:
the power take-off shaft is splined to the second sun gear 10.
The second mode is as follows:
the second sun gear 10 is integrally formed with the power output shaft.
With continued reference to fig. 2, the second sun gear 10 is externally engaged with the plurality of second planet gears 12, the plurality of second planet gears 12 are externally engaged with the plurality of third planet gears 13, respectively, the plurality of third planet gears 13 are externally engaged with the third sun gear 11, the third sun gear 11 is fixedly mounted on the inner wall of the housing 5, the plurality of second planet gears 12 and the plurality of third planet gears 13 are mounted on the second planet carrier 14, and the second planet carrier 14 is fixedly connected with the first gear 2.
Illustratively, the second planet carrier 14 includes a plurality of second planet shafts and a plurality of third planet shafts, the axis of each second planet shaft and the axis of each third planet shaft are parallel to the axis of the second sun gear 10, the plurality of second planet gears 12 are respectively mounted to the plurality of second planet shafts through needle bearings, and the plurality of third planet gears 13 are respectively mounted to the plurality of third planet shafts through needle bearings, wherein the number of second planet shafts is the same as the number of second planet gears 12, and the number of third planet shafts is the same as the number of third planet gears 13.
Illustratively, the number of the second planetary gears 12 and the number of the third planetary gears 13 are three.
When the power-driven vehicle works, power is transmitted to the second sun gear 10 through the power output shaft of the driving motor 1, the second sun gear 10 drives the plurality of second planetary gears 12 to rotate, the plurality of second planetary gears 12 drive the plurality of third planetary gears 13 to rotate around the third sun gear 11, the plurality of second planetary gears 12 and the plurality of third planetary gears 13 drive the second planet carrier 14 to rotate, the second planet carrier 14 drives the first gear 2 to rotate, the first gear 2 drives the second gear 3 to rotate, the second gear 3 transmits the power to the differential 4, and the differential 4 finally transmits the power to the vehicle wheels to drive the vehicle wheels to rotate.
Thus, the purpose of transmission by the planetary gear speed reduction mechanism is achieved by providing the second sun gear 10, the third sun gear 11, the plurality of second planetary gears 12, the plurality of third planetary gears 13, and the second carrier 14.
Further, since the second planetary gear reduction mechanism is a double planetary gear reduction mechanism and is equivalent to one time more planetary gears than the first planetary gear reduction mechanism, the rotational speed of each planetary gear of the second planetary gear reduction mechanism is reduced, and therefore, higher torque can be received.
Those of ordinary skill in the art will understand that: the figures are merely schematic representations of one embodiment, and the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.
Those of ordinary skill in the art will understand that: modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be located in one or more devices different from the embodiments with corresponding changes. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A parallel shaft electric drive axle with a planet row is characterized by comprising a drive motor, a planet gear speed reducing mechanism, a first gear, a second gear, a differential and a shell, wherein the reference circle diameter of the first gear is smaller than that of the second gear;
the second gear is coaxial with the differential, and the driving motor, the planetary gear reduction mechanism, the first gear, the second gear and the differential are all arranged in the shell;
the power output shaft of the driving motor is connected with the input end of the planetary gear speed reducing mechanism, the output end of the planetary gear speed reducing mechanism is connected with the first gear, the first gear is meshed with the second gear, the second gear is fixedly connected with the differential, and the differential is connected with wheels.
2. The parallel-axis electric transaxle of claim 1 wherein the planetary gear reduction mechanism comprises a first sun gear, a plurality of first planet gears, a first planet carrier, and a ring gear;
the first sun gear, the first planet carrier, the ring gear and the first gears are coaxial, and the axis of each first planet gear, the axis of the second gear and the axis of the first sun gear are parallel to each other;
the power output shaft of the driving motor is connected with the first sun gear, the first sun gear is externally meshed with the first planetary gears, the first planetary gears are mounted on the first planet carrier, the gear ring is fixedly mounted on the inner wall of the shell, the first planetary gears are internally meshed with the gear ring, and the first planet carrier is fixedly connected with the first gear.
3. The parallel-axis electric transaxle of claim 2 wherein the first carrier comprises a plurality of first planetary gear shafts, each first planetary gear shaft having an axis parallel to an axis of the first sun gear, the plurality of first planetary gears being respectively mounted to the plurality of first planetary gear shafts by needle bearings, wherein the number of first planetary gear shafts is the same as the number of first planetary gears.
4. A parallel-axis electric transaxle of claim 2 wherein the first planetary gears are three in number.
5. A parallel-axis electric transaxle of claim 2 wherein the first sun gear is integrally formed with the power take-off shaft.
6. A parallel-axis electric transaxle of claim 2 wherein the first sun gear is splined to the power take-off shaft.
7. The parallel-axis electric transaxle of claim 1 wherein the planetary gear reduction mechanism comprises a second sun gear, a third sun gear, a plurality of second planet gears, a plurality of third planet gears, and a second planet carrier, wherein a pitch circle diameter of the second sun gear is smaller than a pitch circle diameter of the third sun gear, a pitch circle diameter of the second planet gears is smaller than a pitch circle diameter of the third planet gears, and the number of the second planet gears is the same as the number of the third planet gears;
the second sun gear, the third sun gear and the first gear are coaxial, and the axis of each second planetary gear, the axis of each third planetary gear, the axis of the second gear and the axis of the second sun gear are parallel to each other;
the power output shaft of the driving motor is connected with the second sun gear, the second sun gear is externally meshed with the plurality of second planetary gears, the plurality of second planetary gears are respectively externally meshed with the plurality of third planetary gears, the plurality of third planetary gears are externally meshed with the third sun gear, the third sun gear is fixedly installed on the inner wall of the shell, the plurality of second planetary gears and the plurality of third planetary gears are installed on the second planet carrier, and the second planet carrier is fixedly connected with the first gear.
8. The parallel-axis electric transaxle of claim 7 wherein the second planet carrier comprises a plurality of second planet pins and a plurality of third planet pins;
an axis of each second planet gear shaft, an axis of each third planet gear shaft, and an axis of the second sun gear are parallel to each other, the plurality of second planet gears are respectively mounted to the plurality of second planet gear shafts through needle bearings, and the plurality of third planet gears are respectively mounted to the plurality of third planet gear shafts through needle bearings, wherein the number of the second planet gear shafts is the same as the number of the second planet gears, and the number of the third planet gear shafts is the same as the number of the third planet gears.
9. A parallel-axis electric transaxle of claim 7 wherein the number of second planetary gears and the number of third planetary gears are three.
10. A parallel-axis electric transaxle of claim 7 wherein the second sun gear is integrally formed with the power take-off shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010695002.2A CN112810433A (en) | 2020-07-19 | 2020-07-19 | Parallel shaft electric drive axle with planet row |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010695002.2A CN112810433A (en) | 2020-07-19 | 2020-07-19 | Parallel shaft electric drive axle with planet row |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112810433A true CN112810433A (en) | 2021-05-18 |
Family
ID=75853030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010695002.2A Pending CN112810433A (en) | 2020-07-19 | 2020-07-19 | Parallel shaft electric drive axle with planet row |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112810433A (en) |
-
2020
- 2020-07-19 CN CN202010695002.2A patent/CN112810433A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9500267B2 (en) | Drive module with compact differential mechanism | |
| US8308600B2 (en) | Transmission device comprising at least two output shafts and at least two multi-shaft planetary gear sets | |
| CN105090390A (en) | Vehicle transmission with common carrier planetary gear set | |
| CN207190794U (en) | A kind of compact dual-motor drive system | |
| CN109236970B (en) | Helicopter main reducer based on torque-dividing transmission mechanism | |
| CN103982607A (en) | Hybrid powertrain | |
| CN112810433A (en) | Parallel shaft electric drive axle with planet row | |
| CN111483271A (en) | Electric axle for a motor vehicle | |
| CN212555832U (en) | Parallel shaft electric drive axle with planet row | |
| CN212604505U (en) | Coaxial two-gear planetary row electric drive axle for automobile | |
| CN212604502U (en) | Coaxial two-gear planetary row electric drive axle for automobile | |
| CN209813709U (en) | Single gearbox hybrid power coupling bridge based on single planet row | |
| CN212604503U (en) | Coaxial two-gear planetary row electric drive axle for automobile | |
| CN212555833U (en) | Coaxial electric drive axle based on tower planet row | |
| CN114435106A (en) | Electric drive axle structure for hybrid new energy automobile | |
| CN212604504U (en) | Coaxial two-gear planetary row electric drive axle for automobile | |
| CN209813707U (en) | Hybrid power coupling bridge based on single planet row | |
| CN111439117A (en) | Coaxial two-gear planetary row electric drive axle for automobile | |
| CN113119704A (en) | Drive device and vehicle | |
| CN113212158A (en) | Coaxial planetary power transmission axle and new energy automobile using same | |
| CN112810435A (en) | Coaxial electric drive axle based on tower planet row | |
| CN112810434A (en) | Coaxial electric drive axle based on two-stage planet row | |
| CN105673784B (en) | For the shaft space difference speed and transfer gear of two-axis gearbox and using its automobile | |
| GB2585082A (en) | Drive unit for electric vehicle | |
| CN112440618B (en) | Driving axle assembly and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |