CN220785437U - Double-planet row mixing system - Google Patents
Double-planet row mixing system Download PDFInfo
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- CN220785437U CN220785437U CN202322783085.2U CN202322783085U CN220785437U CN 220785437 U CN220785437 U CN 220785437U CN 202322783085 U CN202322783085 U CN 202322783085U CN 220785437 U CN220785437 U CN 220785437U
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- 230000007935 neutral effect Effects 0.000 claims description 9
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- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a double-planet row mixing system, which relates to the field of mixing systems and adopts the following scheme: the novel planetary gear transmission device comprises an engine, a front planetary gear row and a rear planetary gear row, wherein the front planetary gear row comprises a front gear ring and a front planetary carrier, the rear planetary gear row comprises a rear planetary carrier and a rear sun gear, the engine is connected with the front gear ring through an input shaft, the front planetary carrier is connected with a main shaft, the main shaft is connected with the rear sun gear, an output shaft is arranged on the rear planetary carrier, and the output shaft is connected with an axle. The utility model can enhance the output torque of the hybrid system and improve the dynamic property.
Description
Technical Field
The utility model relates to the field of mixing systems, in particular to a double-planet-row mixing system.
Background
The hybrid power system can be flexibly regulated and controlled according to the actual running condition requirement of the whole vehicle, so that the engine is always kept in a working area with the best comprehensive performance, and the oil consumption and emission of the engine can be effectively reduced; the current P2 hybrid power system adopted by the heavy truck is to add a motor between a clutch and a gearbox, and the gearbox adopts a conventional power structure.
In order to avoid gear shifting to have the sense of being in touch, promote driving comfort, disclosed a hybrid vehicle driving system in the prior art, including preceding planet row, preceding planet row includes preceding ring gear, preceding planet carrier, preceding planet wheel and preceding sun gear, preceding planet carrier passes through the input shaft with the engine and is connected, be provided with mode switching device on the input shaft, mode switching device is connected with the input of hollow shaft, mode switching device can lock input shaft and hollow shaft respectively, the input shaft has been cup jointed in the hollow shaft, the hollow shaft passes through second gear train and is connected with second driving motor, the output and the preceding sun gear of hollow shaft are connected, preceding ring gear and axle pass through the main shaft and are connected, the main shaft passes through first gear train and is connected with first driving motor, still include the casing, mode switching device, first gear train, second gear train and preceding planet row all set up inside the casing.
By adopting the technical scheme, although the fuel-saving rate of the whole vehicle can be improved in an economic section by continuously running the engine, and the driving comfort and the operation efficiency are improved, the whole output torque is smaller, the power can not be improved, and the engine is not suitable for heavy trucks with complex working conditions, high power demands and high fuel consumption.
Disclosure of Invention
In order to solve the technical problems of small torque and poor dynamic property of the mixing system in the prior art, the utility model provides a double-planet-row mixing system which can enhance the output torque of the mixing system and improve the dynamic property.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a double planetary row mixed system, includes engine, preceding planet row and back planet row, preceding planet row includes preceding ring gear and preceding planet carrier, back planet row includes back planet carrier and back sun gear, the engine pass through the input shaft with preceding ring gear is connected, preceding planet carrier is connected with the main shaft, the main shaft with back sun gear is connected, be provided with the output shaft on the back planet carrier, the output shaft is connected with the axle. Through being connected the ring gear of engine and preceding planet row, can increase output torque, the dynamic nature is better, is fit for the heavy truck that the operating mode is complicated, the operating efficiency requirement is strict, the power demand is high and the oil consumption is high more and uses.
Further, the gear transmission device further comprises a first motor and a second motor, the first motor is connected with the main shaft through a first gear set, the second motor is connected with a hollow shaft through a second gear set, the hollow shaft is connected with a front sun gear of the front planetary gear, the hollow shaft is sleeved outside the main shaft in a sleeved mode, and the hollow shaft is connected with a first gear shifting device. The hollow shaft realizes the switching of pure electric, hybrid electric and direct drive modes by arranging the first gear shifting device, and the speed regulation of the front planetary gear set by the second motor ensures that the engine continuously operates in a high-efficiency interval.
Further, the first gear set comprises a first transmission gear and a second transmission gear which are coaxially arranged with a motor shaft of the first motor, the first transmission gear is meshed with a third transmission gear, the second transmission gear is meshed with a fourth transmission gear, the third transmission gear and the fourth transmission gear are arranged on the main shaft, and a second gear shifting device is arranged between the third transmission gear and the fourth transmission gear on the main shaft.
Further, the second gear set comprises a seventh transmission gear connected with a motor shaft of the second motor, the seventh transmission gear is meshed with a sixth transmission gear, the sixth transmission gear is meshed with a fifth transmission gear, and the fifth transmission gear is arranged on the hollow shaft.
Further, the rear planet row further comprises a rear gear ring, and the rear gear ring is connected with a third gear shifting device. The speed ratio range of the system can be expanded by arranging the third gear shifting device and the second gear shifting device.
Further, the engine is connected with the input shaft through a torsional damper. By adopting the torsional vibration damper, the traditional clutch is canceled, and meanwhile, the double motors are arranged by adopting parallel shafts, so that the axial length of the hybrid system is effectively reduced.
Further, the planetary gear transmission device further comprises a shell, wherein the front planetary gear row, the rear planetary gear row, the first gear shifting device, the second gear shifting device and the third gear shifting device are all arranged in the shell.
Further, the second gear shifting device can be used for connecting the main shaft with the third transmission gear and the fourth transmission gear respectively, and the second gear shifting device is further provided with a neutral gear. Through setting up the multispeed at first motor end, can play the technical effect of increase moment of torsion, further strengthen the dynamic nature of mixing the dynamic system.
Further, the third gear shifting device can be used for connecting the rear gear ring with the shell and connecting the rear gear ring with the output shaft respectively, and the third gear shifting device is further provided with a neutral gear.
Furthermore, the first gear shifting device can connect the hollow shaft with the housing, and the first gear shifting device is further provided with a neutral gear.
From the above technical scheme, the utility model has the following advantages:
the utility model provides a double-planet-row hybrid system, which can increase output torque by connecting an engine with a gear ring of a front planet row, has better dynamic property, and is more suitable for heavy trucks with complex working conditions, strict operation efficiency requirements, high power demand and high oil consumption; the hollow shaft realizes the switching of pure electric, hybrid electric and direct drive modes by arranging the first gear shifting device, and the continuous operation of the engine in a high-efficiency interval is ensured by the speed regulation of the second motor to the front planetary row; the speed ratio range of the system can be expanded by arranging a third gear shifting device and a second gear shifting device; by adopting the torsional vibration damper, the traditional clutch is canceled, and meanwhile, the double motors are arranged by adopting parallel shafts, so that the axial length of the hybrid system is effectively reduced; through setting up the multispeed at first motor end, can play the technical effect of increase moment of torsion, further strengthen the dynamic nature of mixing the dynamic system.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
In the figure, 1, an engine; 2. a torsional vibration damper; 3. an input shaft; 4. a front planet carrier; 6. a fifth transmission gear; 7. a housing; 8. a first motor; 10. a first transmission gear; 11. a second transmission gear; 12. a rear gear ring; 14. a rear planet carrier; 15. a rear sun gear; 16. an output shaft; 17. an axle; 18. a third gear shift device; 19. a main shaft; 20. a fourth transmission gear; 21. a second gear shift device; 22. a third transmission gear; 23. a first gear shifting device; 24. a hollow shaft; 25. a seventh transmission gear; 26. a second motor; 27. a sixth transmission gear; 29. a front sun gear; 30. a front gear ring.
Detailed Description
In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.
As shown in fig. 1, the present embodiment provides a double planetary gear system, which includes a housing 7, an engine 1, a front planetary gear, a rear planetary gear, a first motor 8, and a second motor 26, where the front planetary gear and the rear planetary gear are both disposed in the housing 7; the front planetary row comprises a front gear ring 30, a front planetary carrier 4 and a front sun gear 29, the rear planetary row comprises a rear planetary carrier 14, a rear sun gear 15 and a rear gear ring 12, the engine 1 is connected with the front gear ring 30 through an input shaft 3, in the specific embodiment, the engine 1 is connected with the input shaft 3 through a torsional damper 2, the front planetary carrier 4 is connected with a main shaft 19, the main shaft 19 is connected with the rear sun gear 15, an output shaft 16 is arranged on the rear planetary carrier 14, the output shaft 16 is connected with an axle 17, a first motor 8 and a second motor 26 are arranged in parallel, in particular, the first motor 8 is connected with the main shaft 19 through a first gear set, the second motor 26 is connected with a hollow shaft 24 through a second gear set, the hollow shaft 24 is connected with the front sun gear 29 of the front planetary row, the hollow shaft 24 is sleeved outside the main shaft 19, the hollow shaft 24 is connected with a first gear shifting device 23, the first gear shifting device 23 can connect the hollow shaft 24 with the housing 7, and the first gear shifting device 23 is also provided with a neutral gear; through being connected the front ring gear 30 of engine 1 and preceding planet row, can increase the output torque, dynamic nature is better, is fit for the heavy truck that the operating mode is complicated more, the operation efficiency requirement is strict, the power demand is high and the oil consumption is high and uses, and hollow shaft 24 realizes pure electricity, mixed power and the switching of direct drive mode through setting up first gearshift 23, through the speed governing of second motor 26 to preceding planet row, guarantees that engine 1 continuously operates in high-efficient interval.
As shown in fig. 1, in the present embodiment, the first gear set includes a first transmission gear 10 and a second transmission gear 11 coaxially disposed with a motor shaft of the first motor 8, the first transmission gear 10 is meshed with a third transmission gear 22, the second transmission gear 11 is meshed with a fourth transmission gear 20, the third transmission gear 22 and the fourth transmission gear 20 are disposed on a main shaft 19, a second gear shifting device 21 is disposed on the main shaft 19 between the third transmission gear 22 and the fourth transmission gear 20, the second gear shifting device 21 can connect the main shaft 19 with the third transmission gear 22 and the fourth transmission gear 20 respectively, and the second gear shifting device 21 is further provided with a neutral gear; the second gear set comprises a seventh transmission gear 25 connected with a motor shaft of a second motor 26, the seventh transmission gear 25 is meshed with a sixth transmission gear 27, the sixth transmission gear 27 is meshed with a fifth transmission gear 6, and the fifth transmission gear 6 is arranged on the hollow shaft 24; the rear planet row further comprises a rear gear ring 12, the rear gear ring 12 is connected with a third gear shifting device 18, the third gear shifting device 18 can respectively connect the rear gear ring 12 with the shell 7 and the output shaft 16, and the third gear shifting device 18 is further provided with a neutral gear; the first, second and third shift devices 23, 21 and 18 are all disposed within the housing 7; the speed ratio range of the system can be expanded by arranging the third gear shifting device 18 and the second gear shifting device 21; when the second gear shifting device 21 shifts, the power of the engine 1 is sequentially transmitted to the whole vehicle through the front planetary gear, the main shaft 19, the rear planetary gear and the output shaft 16, so that the output power of the whole hybrid system is not interrupted when the second gear shifting device 21 shifts, and the influence on driving comfort is avoided.
The working process of the double-planet row mixing system is as follows:
and determining the working mode of the gearbox according to the power requirement of the whole vehicle, wherein the working mode of the system mainly comprises a pure electric mode, a hybrid mode and an engine direct drive mode.
Pure electric mode: when the first gear shifting device 23 is at the right position, the power of the first motor 8 is transmitted to the output shaft 16 through the main shaft 19 and the rear planetary gear in sequence through the gear, and the engine 1 and the second motor 26 do not work at this time.
Mixing mode: when the first gear shifting device 23 is positioned on the right side, the power of the second motor 26 is sequentially transmitted to the front sun gear 29 through the seventh transmission gear 25, the sixth transmission gear 27, the fifth transmission gear 6 and the hollow shaft 24, the power of the engine 1 is sequentially transmitted to the front gear ring 30 through the torsional vibration damper 2 and the input shaft 3, the power of the engine 1 and the power of the second motor 26 are coupled through the front planetary gear set and then transmitted to the main shaft 19 through the front planetary carrier 4, the power of the first motor 8 is transmitted to the main shaft 19 through the first gear set, and the coupled power of the engine 1 and the second motor 26 and the power of the first motor 8 are overlapped at the position of the main shaft 19 and then output to the axle 17 through the rear planetary gear set and the output shaft 16.
Engine direct drive mode: when the first gear shifting device 23 is positioned at the left side, the hollow shaft 24 is fixedly connected with the shell 7, the front sun gear 29 is locked and cannot rotate at the moment, the power of the engine 1 is sequentially transmitted to the output shaft 16 through the front gear ring 30, the front planet carrier 4, the main shaft 19, the rear sun gear 15 and the rear planet carrier 14, and then the vehicle is driven to run, when the second gear shifting device 21 is positioned at the left side, the power of the first motor 8 is sequentially transmitted to the main shaft 19 through the first transmission gear 10 and the third transmission gear 22, when the second gear shifting device 21 is positioned at the right side, the power of the first motor 8 is sequentially transmitted to the main shaft 19 through the second transmission gear 11 and the fourth transmission gear 20, when the third gear shifting device 18 is positioned at the left side, the rear gear ring 12 is fixedly connected with the shell 7, the coupled power is transmitted to the rear planet carrier 14 and the output shaft 16 through the rear sun gear 15, when the third gear shifting device 18 is positioned at the right side, the power of the rear gear ring gear 12 is sequentially transmitted to the main shaft 19, when the third gear shifting device 18 is positioned at the right side, the power is sequentially transmitted to the main gear ring gear 12 and the rear planet carrier 14 is connected with the rear planet carrier 14, and the rear planet carrier is positioned at the rear gear 1.
From the above detailed description, it can be seen that the present utility model has the following advantages:
1. the engine 1 is connected with the front gear ring 30 of the front planetary gear, so that the output torque can be increased, the dynamic property is better, and the device is more suitable for heavy trucks with complex working conditions, strict operation efficiency requirements, high power requirements and high oil consumption;
2. the hollow shaft 24 realizes the switching of pure electric, hybrid electric and direct drive modes by arranging the first gear shifting device 23, and the speed regulation of the front planetary row is realized by the second motor 26, so that the continuous operation of the engine 1 in a high-efficiency interval is ensured;
3. the speed ratio range of the system can be expanded by arranging the third gear shifting device 18 and the second gear shifting device 21;
4. by adopting the torsional vibration damper 2, the traditional clutch is canceled, and meanwhile, the double motors are arranged by adopting parallel shafts, so that the axial length of the hybrid system is effectively reduced;
5. by providing a plurality of gears in the first motor 8, the torque can be increased, and the dynamic performance of the hybrid system can be further enhanced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a double planetary row mixed system, including engine (1), preceding planet row and back planet row, its characterized in that, preceding planet row includes preceding ring gear (30) and preceding planet carrier (4), back planet row includes back planet carrier (14) and back sun gear (15), engine (1) are connected with preceding ring gear (30) through input shaft (3), preceding planet carrier (4) are connected with main shaft (19), main shaft (19) are connected with back sun gear (15), be provided with output shaft (16) on back planet carrier (14), output shaft (16) are connected with the axle.
2. The double planetary gear system according to claim 1, further comprising a first motor (8) and a second motor (26), wherein the first motor (8) is connected with the main shaft (19) through a first gear set, the second motor (26) is connected with a hollow shaft (24) through a second gear set, the hollow shaft (24) is connected with a front sun gear (29) of a front planetary gear, the hollow shaft (24) is sleeved outside the main shaft (19), and the hollow shaft (24) is connected with a first gear shifting device (23).
3. Double planetary gear system according to claim 2, characterized in that the first gear set comprises a first transmission gear (10) and a second transmission gear (11) arranged coaxially with the motor shaft of the first motor (8), the first transmission gear (10) being in engagement with a third transmission gear (22), the second transmission gear (11) being in engagement with a fourth transmission gear (20), the third transmission gear (22) and the fourth transmission gear (20) being arranged on a main shaft (19), a second gear shifting device (21) being arranged on the main shaft (19) between the third transmission gear (22) and the fourth transmission gear (20).
4. The double row hybrid system according to claim 2, characterized in that the second gear set comprises a seventh transmission gear (25) connected to the motor shaft of the second motor (26), the seventh transmission gear (25) being in engagement with a sixth transmission gear (27), the sixth transmission gear (27) being in engagement with a fifth transmission gear (6), the fifth transmission gear (6) being arranged on the hollow shaft (24).
5. A double row planetary hybrid system according to claim 3, characterized in that the rear planetary row further comprises a rear ring gear (12), the rear ring gear (12) being connected with a third gear shifting device (18).
6. Double row hybrid system according to claim 2, characterized in that the engine (1) is connected to the input shaft (3) via a torsional vibration damper (2).
7. The double row planetary mixing system according to claim 5, further comprising a housing (7), wherein the front row, the rear row, the first gear shift (23), the second gear shift (21) and the third gear shift (18) are all disposed within the housing (7).
8. Double row hybrid system according to claim 7, characterized in that the second gear shifting device (21) is capable of connecting the main shaft (19) with the third transmission gear (22) and the fourth transmission gear (20), respectively, the second gear shifting device (21) being further provided with a neutral gear.
9. Double row hybrid system according to claim 8, characterized in that the third gear shifting device (18) is capable of connecting the rear gear ring (12) with the housing (7) and the output shaft (16), respectively, the third gear shifting device (18) being further provided with a neutral gear.
10. Double row hybrid system according to claim 9, characterized in that the first gear shifting device (23) is capable of connecting the hollow shaft (24) with the housing (7), the first gear shifting device (23) being further provided with a neutral gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322783085.2U CN220785437U (en) | 2023-10-17 | 2023-10-17 | Double-planet row mixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322783085.2U CN220785437U (en) | 2023-10-17 | 2023-10-17 | Double-planet row mixing system |
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| Publication Number | Publication Date |
|---|---|
| CN220785437U true CN220785437U (en) | 2024-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322783085.2U Active CN220785437U (en) | 2023-10-17 | 2023-10-17 | Double-planet row mixing system |
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| Country | Link |
|---|---|
| CN (1) | CN220785437U (en) |
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2023
- 2023-10-17 CN CN202322783085.2U patent/CN220785437U/en active Active
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