CN218510121U - Power transmission system and vehicle - Google Patents
Power transmission system and vehicle Download PDFInfo
- Publication number
- CN218510121U CN218510121U CN202222483108.3U CN202222483108U CN218510121U CN 218510121 U CN218510121 U CN 218510121U CN 202222483108 U CN202222483108 U CN 202222483108U CN 218510121 U CN218510121 U CN 218510121U
- Authority
- CN
- China
- Prior art keywords
- gear
- shaft
- transmission shaft
- planetary
- power transmission
- 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
Images
Landscapes
- Structure Of Transmissions (AREA)
Abstract
The utility model discloses a power transmission system and a vehicle, which comprises a planetary mechanism and a gear shifting mechanism; sun gear and the meshing of planet wheel unit among the planetary gear mechanism, the sun gear is installed on first transmission shaft, the planet wheel unit is installed on the planet carrier, planet wheel unit and ring gear meshing, the planet carrier cover is established on first transmission shaft, the planet carrier combines the ring gear with low fender and is connected, linking bridge among the gearshift is connected with the synchronous ware sliding sleeve, install the friction taper ring on the synchronous ware sliding sleeve, the friction taper ring combines the ring gear with low fender and the meshing of high fender combination ring gear, low fender combination ring gear and high fender combination ring gear are all installed on first transmission shaft, linking bridge connection secondary drive shaft. The utility model discloses transmission efficiency is high, and the rate of economizing on fuel is high, and it is little with the time difference of shifting to have guaranteed high-low gear to switch the synchronizing time simultaneously, and the uniformity is good.
Description
Technical Field
The utility model belongs to mechanical variable speed field, especially a power transmission system and vehicle.
Background
With the development of modern automobile technology, automobiles tend to be more and more electric, and heavy-duty vehicles such as trucks and buses also tend to be developed to be electric. The single-gear transmission generally has a low utilization rate of the motor, and the motor is in a high-torque and high-current running state, so that the motor is wasted and the driving mileage is reduced. In order to meet the requirements of climbing, high speed, acceleration and the like of an electric vehicle, a pure electric vehicle usually adopts a two-gear transmission, the two-gear transmission can reduce the output torque of a single machine, reduce the size and the cost of a motor, optimize the running state of the motor, and adjust the working point of the motor so that the motor can work in a high-efficiency interval as much as possible. Two grades of derailleurs that match of present commercial car adopt single jackshaft structure usually, this kind of transmission route simple structure, easy dismounting, but transmission efficiency is low slightly to the synchronizer can only be arranged between two rows of gears. Meanwhile, the synchronous inertia of the low gear side is large, and the high-low gear switching synchronous time difference and the gear shifting time difference are large.
Disclosure of Invention
An object of the utility model is to solve the problem among the prior art, provide a power transmission system and vehicle, improve transmission efficiency, reduce the height and keep off switching synchronization time and shift time difference.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a power transmission system includes a planetary mechanism and a shift mechanism;
the planetary mechanism includes sun gear and planet wheel unit, sun gear and the meshing of planet wheel unit, the sun gear is installed on first transmission shaft, the planet wheel unit is installed on the planet carrier, the meshing of planet wheel unit and ring gear, the planet carrier cover is established on first transmission shaft, the planet carrier combines the ring gear with low fender and is connected, linking bridge among the gearshift is connected with the synchronous ware sliding sleeve, install the friction taper ring on the synchronous ware sliding sleeve, the friction taper ring combines the ring gear and the meshing of high fender combination ring gear with low fender, low fender combines the ring gear and high fender combination ring gear and all installs on first transmission shaft, linking bridge connection second transmission shaft.
Furthermore, the first transmission shaft is an input shaft, the first transmission shaft is connected with a motor, and the second transmission shaft is an output shaft.
Further, the planetary wheel unit is a first planetary wheel.
Furthermore, the planet carrier is sleeved on the first transmission shaft through a bearing.
Furthermore, the first transmission shaft is an output shaft, the second transmission shaft is an input shaft, and the second transmission shaft is connected with a motor.
Further, the planetary wheel unit comprises a second planetary wheel and a third planetary wheel, and the second planetary wheel is meshed with the third planetary wheel.
Furthermore, the second transmission shaft is connected with a single-stage reduction mechanism, and the single-stage reduction mechanism is connected with a differential assembly.
Furthermore, a main shaft output gear in the single-stage reduction mechanism is connected with a second transmission shaft, the main shaft output gear is meshed with a driven reduction gear, and the driven reduction gear is connected with a differential assembly.
Furthermore, the main shaft output gear is meshed with an intermediate shaft reduction gear, the intermediate shaft reduction gear is connected with an active reduction gear through an intermediate shaft, and the active reduction gear is meshed with a passive reduction gear.
A vehicle includes the power transmission system.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a power transmission system comprises motor and two speed changers that keep off, and the derailleur includes planetary mechanism and gearshift, and planetary mechanism adopts single-row single-stage planetary gear structure or single-row doublestage planetary gear structure, and under same output torque, output shaft diameter of the axle size is bigger, and the antitorque ability is strong to this structure transmission efficiency is high, and the oil-saving rate is high. The gear shifting mechanism adopts a synchronizer structure, a synchronizer gear hub is not arranged, the axial size is short, the gear shifting mechanism can be flexibly arranged at the front end or the rear end of the planetary mechanism, and meanwhile, the high-low gear switching synchronization time, the gear shifting time difference and the consistency are small. In addition, through the size that changes planetary gear mechanism, the utility model discloses it drives the axle to still integrateing the transaxle and constitutes two fender electricity.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a power transmission system according to embodiment 1 of the present invention.
Fig. 2 is a schematic configuration diagram of a power transmission system according to embodiment 2 of the present invention.
Fig. 3 is a schematic structural view of a power transmission system according to embodiment 3 of the present invention.
Fig. 4 is a schematic structural view of a power transmission system according to embodiment 4 of the present invention.
Fig. 5 is a schematic structural view of a power transmission system according to embodiment 5 of the present invention.
Wherein: 1-motor, 2-first transmission shaft, 3-sun gear, 4-first planet gear, 4-1-second planet gear, 4-2-third planet gear, 5-inner gear ring, 6-planet carrier, 7-low gear combination gear ring, 8-friction cone ring, 9-synchronizer sliding sleeve, 10-high gear combination gear ring, 11-connecting support, 12-second transmission shaft, 13-main shaft output gear, 14-intermediate shaft reduction gear, 15-intermediate shaft, 16-driving reduction gear, 17-driven reduction gear and 18-differential assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "horizontal", "inner", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in further detail with reference to the accompanying drawings:
the utility model provides a power transmission system, which comprises a motor 1, a first transmission shaft 2, a second transmission shaft 12, a planetary mechanism and a gear shifting mechanism; the planetary mechanism comprises a sun gear 3, a planetary gear unit, an inner gear ring 5 and a planet carrier 6, and the gear shifting mechanism comprises a low gear combined gear ring 7, a friction cone ring 8, a synchronizer sliding sleeve 9, a high gear combined gear ring 10 and a connecting bracket 11.
A sun gear 3 in the planetary mechanism is installed on a first transmission shaft 2, the sun gear 3 is meshed with a planet gear unit, the planet gear unit is installed on a planet carrier 6, the planet gear unit is meshed with an inner gear ring 5, the planet carrier 6 is sleeved on the first transmission shaft 2 through a bearing sleeve, the planet carrier 6 is rigidly connected with a low-gear combined gear ring 7, a connecting support 11 in the gear shifting mechanism is rigidly connected with a synchronizer sliding sleeve 9 through a spline, a friction conical ring 8 is installed on the synchronizer sliding sleeve 9, the friction conical ring 8 can be driven by the synchronizer sliding sleeve 9 to move left and right, when a low gear needs to be hung, the synchronizer sliding sleeve 9 drives the friction conical ring 8 to move and is meshed with the low-gear combined gear ring 7, when a high gear needs to be hung, the synchronizer sliding sleeve 9 drives the friction conical ring 8 to move and is meshed with the high-gear combined gear ring 10, the low-gear combined gear ring 7 and the high-gear combined gear ring 10 are both installed on the first transmission shaft 2, the low-gear combined gear ring 7 and the high-gear combined gear ring 10 are bevel gears, and the connecting support 11 is connected with a second transmission shaft 12.
Example 1:
as shown in fig. 1, a motor 1 is connected with a first transmission shaft 2, the first transmission shaft 2 is an input shaft, a sun gear 3 in a planetary mechanism is installed on the first transmission shaft 2, the sun gear 3 is engaged with a first planet gear 4, the first planet gear 4 is installed on a planet carrier 6, the first planet gear 4 is engaged with an inner gear ring 5, the planet carrier 6 is sleeved on the first transmission shaft 2 through a bearing sleeve, the planet carrier 6 is rigidly connected with a low gear combination gear ring 7, a connecting support 11 in a shifting mechanism is rigidly connected with a synchronizer sliding sleeve 9 through a spline, the synchronizer sliding sleeve 9 is provided with a friction conical ring 8, the friction conical ring 8 can be driven by the synchronizer sliding sleeve 9 to move left and right and is respectively engaged with the low gear combination gear ring 7 and a high gear combination gear ring 10, the low gear combination gear ring 7 and the high gear combination gear ring 10 are both installed on the first transmission shaft 2, the connecting support 11 is connected with a second transmission shaft 12, and the second transmission shaft 12 is an output shaft.
The specific working principle is as follows: the power of the motor 1 is transmitted to a sun gear 3 in the planetary mechanism through a first transmission shaft 2, when a low gear is engaged, a synchronizer sliding sleeve 9 moves leftwards, a friction conical ring 8 is pushed to press a low gear combined gear ring 7, the power from the motor 1 is input through the sun gear 3 at the moment, a planet carrier 6 is output, and the whole vehicle runs at a low gear. When the high gear is engaged, the synchronizer sliding sleeve 9 moves to the right to push the friction conical ring 8 to press the high gear combination gear ring 10, power is transmitted to the second transmission shaft 12 through the high gear combination gear ring 10, the friction conical ring 8, the synchronizer sliding sleeve 9 and the connecting bracket 11, the speed ratio is 1, and the whole vehicle runs at a high gear.
Example 2:
as shown in fig. 2, the difference from embodiment 1 is that the shift mechanism is provided at the front end of the planetary mechanism. The motor 1 is connected with a second transmission shaft 12, the second transmission shaft 12 is an input shaft, the connecting support 11 is connected with the second transmission shaft 12, the first transmission shaft 2 is an output shaft, and the planetary mechanism, the low gear combined gear ring 7 and the high gear combined gear ring 10 are all installed on the first transmission shaft 2.
The specific working principle is as follows: when a low-speed gear is engaged, the synchronizer sliding sleeve 9 moves to the right to push the friction conical ring 8 to compress the low-speed gear combination gear ring 7, at the moment, power from the motor 1 is transmitted to the planet carrier 6 through the second transmission shaft 12, the connecting bracket 11, the synchronizer sliding sleeve 9, the friction conical ring 8 and the low-speed gear combination gear ring 7, is input into the sun gear 3 through the planet carrier 6 and is transmitted to the first transmission shaft 2, and the whole vehicle runs at a low speed. When a high-speed gear is engaged, the synchronizer sliding sleeve 9 moves leftwards to push the friction conical ring 8 to press the high-gear combined gear ring 10, power is transmitted to the first transmission shaft 2 through the second transmission shaft 12, the connecting bracket 11, the synchronizer sliding sleeve 9, the friction conical ring 8 and the high-gear combined gear ring 10, the speed ratio is 1, and the whole vehicle runs at the high-speed gear.
Example 3:
as shown in fig. 3, the difference from embodiment 1 is that a single-row single-stage planetary gear is replaced by a single-row double-stage planetary gear mechanism, the planetary gear unit includes a second planetary gear 4-1 and a third planetary gear 4-2, the second planetary gear 4-1 is engaged with a sun gear 3, the third planetary gear 4-2 is engaged with an inner gear ring 5, the second planetary gear 4-1 is engaged with the third planetary gear 4-2, and the second planetary gear 4-1 and the third planetary gear 4-2 are both mounted on a planet carrier 6.
Example 4:
as shown in fig. 4, the difference from embodiment 1 is that a power output part is added, a single-stage reduction mechanism and a differential assembly 18 are provided, a second transmission shaft 12 is connected with a main shaft output gear 13 in the single-stage reduction mechanism as an output shaft, the main shaft output gear 13 is meshed with a countershaft reduction gear 14, the countershaft reduction gear 14 is connected with an active reduction gear 16 through a countershaft 15, the active reduction gear 16 is meshed with a passive reduction gear 17, and the passive reduction gear 17 is connected with the differential assembly 18. The input torque can be further increased and the rotating speed can be reduced, and the differential assembly 18 can enable the left wheel and the right wheel to roll at different rotating speeds when the vehicle turns or runs on an uneven road surface, so that the wheels are ensured to do pure rolling motion.
Example 5:
as shown in fig. 5, in embodiment 4, the intermediate shaft assembly is removed, the second transmission shaft 12 is connected as an output shaft to the main shaft output gear 13 in the single-stage reduction mechanism, the main shaft output gear 13 is meshed with the driven reduction gear 17, and the driven reduction gear 17 is connected to the differential assembly 18.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A power transmission system characterized by comprising a planetary mechanism and a shift mechanism;
planetary mechanism includes sun gear (3) and planet wheel unit, sun gear (3) and the meshing of planet wheel unit, sun gear (3) are installed on first transmission shaft (2), the planet wheel unit is installed on planet carrier (6), the meshing of planet wheel unit and ring gear (5), planet carrier (6) cover is established on first transmission shaft (2), planet carrier (6) are connected with low fender combination ring gear (7), linking bridge (11) among the gear shift mechanism are connected with synchronous ware sliding sleeve (9), install friction taper ring (8) on synchronous ware sliding sleeve (9), friction taper ring (8) combine ring gear (7) and high fender combination ring gear (10) meshing with low fender, low fender combination ring gear (7) and high fender combination ring gear (10) all install on first transmission shaft (2), second transmission shaft (12) are connected to linking bridge (11).
2. A power transmission system according to claim 1, characterized in that the first transmission shaft (2) is an input shaft, the first transmission shaft (2) is connected to an electric machine (1), and the second transmission shaft (12) is an output shaft.
3. A power transmission system according to claim 1, characterised in that the planetary unit is a first planetary wheel (4).
4. A power transmission system according to claim 1, characterised in that the planet carrier (6) is journalled on the first transmission shaft (2) via a bearing.
5. A power transmission system according to claim 1, characterized in that the first transmission shaft (2) is an output shaft, the second transmission shaft (12) is an input shaft, and the second transmission shaft (12) is connected to an electric machine (1).
6. A power transmission system according to claim 1, characterised in that the planetary unit comprises second (4-1) and third (4-2) planetary wheels, the second planetary wheel (4-1) being in mesh with the third planetary wheel (4-2).
7. A power transmission system according to claim 1, wherein the secondary drive shaft (12) is coupled to a single reduction gear mechanism, the single reduction gear mechanism being coupled to a differential assembly (18).
8. A power transmission system according to claim 7, wherein the main shaft output gear (13) of the single reduction unit is connected to the second drive shaft (12), the main shaft output gear (13) is meshed with a driven reduction gear (17), and the driven reduction gear (17) is connected to the differential assembly (18).
9. A power transmission system according to claim 8, characterized in that the main shaft output gear (13) meshes with a counter reduction gear (14), the counter reduction gear (14) being connected to an active reduction gear (16) via a counter shaft (15), the active reduction gear (16) meshing with a passive reduction gear (17).
10. A vehicle characterized by comprising the power transmission system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222483108.3U CN218510121U (en) | 2022-09-19 | 2022-09-19 | Power transmission system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222483108.3U CN218510121U (en) | 2022-09-19 | 2022-09-19 | Power transmission system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218510121U true CN218510121U (en) | 2023-02-21 |
Family
ID=85214600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222483108.3U Active CN218510121U (en) | 2022-09-19 | 2022-09-19 | Power transmission system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218510121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118224376A (en) * | 2024-05-25 | 2024-06-21 | 浙江西博思测控技术有限公司 | Valve gear box capable of being opened and closed rapidly and mounting method thereof |
-
2022
- 2022-09-19 CN CN202222483108.3U patent/CN218510121U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118224376A (en) * | 2024-05-25 | 2024-06-21 | 浙江西博思测控技术有限公司 | Valve gear box capable of being opened and closed rapidly and mounting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103332108A (en) | Two-gear power transmission system for BEV integrated planetary gear train | |
| CN211231459U (en) | Double-motor transverse shiftable electric drive bridge reducer assembly | |
| CN103754111A (en) | Differential and change speed integrated double-gear rear driving assembly of electric vehicle | |
| CN110774831A (en) | Commercial car coaxial type two-gear speed change electric drive axle power assembly | |
| CN218510121U (en) | Power transmission system and vehicle | |
| CN112277612A (en) | Electric drive system and electric vehicle | |
| CN113928101A (en) | Single-motor coaxial two-gear electric drive axle | |
| CN115972896A (en) | Efficient multi-gear electric drive bridge transmission system | |
| CN213291965U (en) | Pure electric vehicles bi-motor drive axle assembly | |
| CN201902518U (en) | Second gear decelerator assembly for electromobile | |
| CN211918383U (en) | Longitudinally-arranged two-gear integrated electric drive bridge behind motor | |
| CN209852070U (en) | Special speed changer for hybrid power | |
| CN218267051U (en) | Three-gear pneumatic type automobile auxiliary transmission | |
| CN201841952U (en) | Automobile transfer case with double cone synchronizer | |
| CN208630351U (en) | Hybrid power system and vehicle | |
| CN110848346A (en) | Double-motor transverse shiftable electric drive bridge reducer assembly | |
| CN112277611A (en) | Electric vehicle and integrated driving system thereof | |
| CN115366644A (en) | Double-motor two-gear unpowered interruption electric drive axle | |
| CN214492502U (en) | Integrated two keep off electric drive axle | |
| CN201858316U (en) | 8AT (Automatic Transmission) gear transmission system | |
| CN211820614U (en) | Single-motor transverse shiftable electric drive bridge reducer assembly | |
| CN113942383A (en) | Multi-gear dual-motor hybrid electric vehicle and transmission system thereof | |
| CN212422716U (en) | Two-stage speed reduction two-gear speed change non-shaft type axle | |
| CN108016267A (en) | A kind of single motor coupler of pure electric vehicle | |
| CN211809057U (en) | Single motor differential structure integrated electric drive bridge reduction gear assembly that can shift gears |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |