CN213839450U - Improved clutch and transmission system thereof - Google Patents
Improved clutch and transmission system thereof Download PDFInfo
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- CN213839450U CN213839450U CN202021838563.5U CN202021838563U CN213839450U CN 213839450 U CN213839450 U CN 213839450U CN 202021838563 U CN202021838563 U CN 202021838563U CN 213839450 U CN213839450 U CN 213839450U
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- forward clutch
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Abstract
An improved clutch and transmission system thereof, comprising: the outer hub of forward clutch, the inner hub of forward clutch, planet carrier, ring gear, planet gear and sun gear, wherein: the outer hub of the forward clutch is fixedly connected with the input shaft, the inner hub of the forward clutch and the outer hub of the forward clutch are connected with the steel sheet through friction plates, the gear ring is fixedly connected to the outer hub of the forward clutch, the planetary gear is arranged on the planet carrier, the planet carrier is connected with the shell of the transmission through the friction plates and the steel sheet, and the sun gear is fixedly connected with the inner hub of the forward clutch and is arranged on the planet carrier through a thrust bearing. The utility model has the advantages that the power transmission path is increased, so that the CVT gearbox has sufficient power when starting, and the response time is shorter; when the whole vehicle runs at a low speed, the efficiency is higher, and the service life of the steel belt is prolonged.
Description
Technical Field
The utility model relates to a technique in the automotive transmission field specifically is an improved generation clutch and transmission system thereof.
Background
The existing mainstream CVT gearbox has the defects of weak starting acceleration and low efficiency of the whole gearbox when running AT low speed compared with AT and DCT gearboxes because only one power transmission path is generally adopted, namely, the vehicle can move forwards and backwards through a clutch.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to current CVT gearbox weak and the low-speed problem of driving down with higher speed, provide an improved generation clutch and transmission system thereof, through the route that increases power transmission to two above problems of CVT are improved.
The utility model discloses a realize through following technical scheme:
the utility model relates to an improved generation clutch, include: the outer hub of forward clutch, the inner hub of forward clutch, planet carrier, ring gear, planet gear and sun gear, wherein: the outer hub of the forward clutch is fixedly connected with the input shaft, the inner hub of the forward clutch and the outer hub of the forward clutch are connected with the steel sheet through friction plates, the gear ring is fixedly connected to the outer hub of the forward clutch, the planetary gear is arranged on the planet carrier, the planet carrier is connected with the shell of the transmission through the friction plates and the steel sheet, and the sun gear is fixedly connected with the inner hub of the forward clutch and is arranged on the planet carrier through a thrust bearing.
The steel sheets are not jointed with the friction plates in a natural state, and the steel sheets are jointed with the friction plates through oil pressure pushing, so that the jointing of the inner hub and the outer hub is realized.
The planet carrier and the inner hub of the reverse clutch are preferably integrally arranged.
The embodiment relates to a transmission system based on the improved clutch, which comprises: set up driving pulley on the input shaft and the driven pulley who sets up on the output shaft that links to each other through the steel band with it, set up improved generation clutch on the input shaft and set up the second clutch on the jackshaft, wherein: the input shaft is provided with first transmission teeth, the intermediate shaft is provided with second transmission teeth and third transmission teeth, the output shaft is provided with fourth transmission teeth, the second transmission teeth are meshed with the first transmission teeth, the third transmission teeth are meshed with the fourth transmission teeth, and the driving belt wheel is connected with the improved clutch through a belt wheel shaft spline.
The second clutch adopts a multi-plate friction plate clutch.
The output shaft is further connected with a differential through a speed reducing mechanism, and the speed reducing mechanism comprises first to fourth speed reducing teeth and a speed reducing shaft.
The transmission system pushes the belt wheel to move up and down through oil pressure, and adjusts the input/output movement radius of the steel belt, so that the speed ratio change is realized, wherein the power is transmitted between the belt wheel/belt wheel shaft and the steel belt through friction force.
Technical effects
The utility model integrally solves the problems that the prior CVT gearbox vehicle has weak acceleration in the starting stage and has lower gearbox efficiency when running at low speed;
compared with the prior art, the utility model has the advantages that the CVT gearbox has sufficient power and faster response time when starting; when the whole vehicle runs at a low speed, the efficiency is higher, and the service life of the steel belt is prolonged.
Drawings
FIG. 1 is a schematic view of the transmission system of the present invention;
FIG. 2 is a schematic view of an improved clutch of the present invention;
in the figure: the planetary transmission comprises an input shaft 1, a forward clutch outer hub 2, a forward clutch inner hub 3, a planet carrier 4, a gear ring 5, a planet gear 6, a sun gear 7, an improved clutch C1, a second clutch C2, a first transmission gear 8, a second transmission gear 9, a third transmission gear 10, a first reduction gear 11, a reduction shaft 12, second to fourth reduction gears 13 to 15, a driving pulley 16, a steel belt 17, a driven pulley 18, an output shaft 19, fourth transmission gears 20, intermediate shafts 21, TCs and a pulley shaft spline 22;
FIG. 3 is a schematic power flow diagram of an embodiment.
Detailed Description
As shown in fig. 1, the transmission system according to the present embodiment includes: a driving pulley 16 provided on the input shaft 1 and a driven pulley 18 provided on the output shaft 19 connected thereto via a steel belt 17, a modified clutch C1 provided on the input shaft 1, and a second clutch C2 provided on the intermediate shaft 21, wherein: the input shaft 1 is provided with a first transmission gear 8, the intermediate shaft 21 is provided with a second transmission gear 9 and a third transmission gear 10, the output shaft 19 is provided with a fourth transmission gear 20, the second transmission gear 9 is meshed with the first transmission gear 8, the third transmission gear 10 is meshed with the fourth transmission gear 20, and the driving belt pulley 16 is connected with the improved clutch C1 through a belt pulley shaft spline 22.
The transmission system pushes the belt wheel to move up and down through oil pressure, and adjusts the input/output movement radius of the steel belt, so that the speed ratio change is realized, wherein the power is transmitted between the belt wheel/belt wheel shaft and the steel belt through friction force.
As shown in fig. 2, the modified clutch C1 includes: forward clutch outer hub 2, forward clutch inner hub 3, planet carrier 4, ring gear 5, planet gears 6 and sun gear 7, wherein: the outer hub 2 of the forward clutch is fixedly connected with the input shaft 1, the inner hub 3 of the forward clutch and the outer hub 2 of the forward clutch are connected with a steel sheet through friction plates, the gear ring 5 is fixedly connected onto the outer hub of the forward clutch, the planet gear 6 is arranged on the planet carrier 4, the planet carrier 4 is connected with the shell of the transmission through the friction plates and the steel sheet, and the sun gear 7 is fixedly connected with the inner hub 3 of the forward clutch and is arranged on the planet carrier 4 through a thrust bearing.
The driving pulley 16 is connected with the sun gear 7 through a pulley shaft spline 22.
The second clutch C2 is a multi-plate friction plate clutch.
The output shaft 19 is further connected with a differential through a speed reducing mechanism, and the speed reducing mechanism comprises first to fourth speed reducing teeth 11, 13-15 and a speed reducing shaft 12.
As shown in fig. 3, the transmission system of the embodiment includes, according to the running condition of the vehicle:
when the vehicle starts or runs at a low speed, the working mode 1, namely the gear transmission of the transmission path I is adopted, and the method specifically comprises the following steps: the power is input by the input shaft, the input shaft is fixedly connected with the outer hub of the forward clutch, and the outer hub of the clutch idles along with the input shaft because the friction plate and the steel sheet have no oil pressure, so that the power is disconnected at a breakpoint 1; because the gear 1 is fixedly connected with the input shaft, power is transmitted to the second transmission gear 9 and the third transmission gear 10 through the first transmission gear 8, namely the second transmission gear 9 is fixedly connected with the outer hub of the second clutch C2, and the steel sheet is matched with the spline groove of the outer hub; the third transmission gear 10 is fixedly connected with the inner hub of the second clutch C2, the friction plate is matched with the spline groove of the inner hub, and at the moment, the second clutch C2 is in oil-filled engagement, so that power output is realized.
When the vehicle starts to finish or runs at a high speed, the working mode 2 is adopted, namely the belt wheel transmission of the transmission path II is adopted, wherein II specifically comprises the following steps: power is input through the input shaft, the input shaft is fixedly connected with the outer hub of the forward clutch, the piston of the forward clutch is filled with oil, the friction plate is connected with the steel sheet, the power is transmitted to the inner hub of the forward clutch through the outer hub of the forward clutch, then the power is input to the sun gear, namely the sun gear 7 is fixedly connected with the inner hub 3 of the forward clutch, the power is output to the driving belt wheel shaft, namely the sun gear 7 is matched with the spline 22 of the belt wheel shaft, and at the moment, the planet carrier and the sun gear rotate in the same direction, so that power output is realized.
The comprehensive efficiency of the existing CVT gearbox is about 85%, wherein the low-speed efficiency is about 80%, under the working condition, the clamping force required by a steel belt is large, the steel belt needs high oil pressure to be stabilized to be not slipped, and the efficiency can be reduced. In the working condition of the whole vehicle, the device is generally used at the starting and low speed (below 40 km/h), the working condition is kept away from steel belt transmission by the direct-drive mechanism, and the transmission is carried out by adopting a gear transmission mode, so that the whole box efficiency can be improved by about 4-6% (compared with an MT box type, the gear transmission efficiency can reach about 90%). In the aspect of dynamic property, as the gear is used for transmission when starting, the dynamic response is quicker, and the driving pleasure is improved.
The foregoing embodiments may be modified in various ways by those skilled in the art without departing from the spirit and scope of the present invention, which is not limited by the above embodiments but is to be accorded the full scope defined by the appended claims, and all such modifications and variations are within the scope of the invention.
Claims (7)
1. An improved clutch, comprising: the outer hub of forward clutch, the inner hub of forward clutch, planet carrier, ring gear, planet gear and sun gear, wherein: the outer hub of the forward clutch is fixedly connected with the input shaft, the inner hub of the forward clutch and the outer hub of the forward clutch are connected with the steel sheet through friction plates, the gear ring is fixedly connected to the outer hub of the forward clutch, the planetary gear is arranged on the planet carrier, the planet carrier is connected with the shell of the transmission through the friction plates and the steel sheet, and the sun gear is fixedly connected with the inner hub of the forward clutch and is arranged on the planet carrier through a thrust bearing.
2. The improved clutch of claim 1 wherein said steel plates are not engaged with said friction plates in a natural state and said engagement of said steel plates with said friction plates is achieved by oil pressure urging to effect engagement of said inner and outer hubs.
3. The improved clutch of claim 1 wherein said carrier is integrally formed with said reverse clutch inner hub.
4. A transmission system based on the improved clutch of any one of claims 1 to 3, characterized by comprising: the driving belt wheel is arranged on the input shaft, the driven belt wheel is connected with the driving belt wheel through a steel belt and is arranged on the output shaft, the improved clutch is arranged on the input shaft, and the second clutch is arranged on the intermediate shaft, wherein: the input shaft is provided with first transmission teeth, the intermediate shaft is provided with second transmission teeth and third transmission teeth, the output shaft is provided with fourth transmission teeth, the second transmission teeth are meshed with the first transmission teeth, the third transmission teeth are meshed with the fourth transmission teeth, and the driving belt wheel is connected with the improved clutch through a belt wheel shaft spline.
5. A transmission system according to claim 4, wherein the drive pulley is connected to the sun gear by a pulley shaft spline.
6. A transmission system according to claim 4, wherein the second clutch is a multi-plate friction plate clutch.
7. A transmission system according to claim 4, wherein the output shaft is further connected to a differential via a reduction mechanism comprising first to fourth reduction teeth and a reduction shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021838563.5U CN213839450U (en) | 2020-08-28 | 2020-08-28 | Improved clutch and transmission system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021838563.5U CN213839450U (en) | 2020-08-28 | 2020-08-28 | Improved clutch and transmission system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213839450U true CN213839450U (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021838563.5U Active CN213839450U (en) | 2020-08-28 | 2020-08-28 | Improved clutch and transmission system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213839450U (en) |
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2020
- 2020-08-28 CN CN202021838563.5U patent/CN213839450U/en active Active
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