CN203395147U - Multipoint supporting structure of automatic dual-clutch transmission (DCT) countershaft assembly - Google Patents
Multipoint supporting structure of automatic dual-clutch transmission (DCT) countershaft assembly Download PDFInfo
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- CN203395147U CN203395147U CN201320385384.4U CN201320385384U CN203395147U CN 203395147 U CN203395147 U CN 203395147U CN 201320385384 U CN201320385384 U CN 201320385384U CN 203395147 U CN203395147 U CN 203395147U
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- countershaft assembly
- bearing
- supporting structure
- supported
- middle plate
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Abstract
The utility model relates to a multipoint supporting structure of an automatic dual-clutch transmission (DCT) countershaft assembly. The multipoint supporting structure comprises a front bearing, a front shell, a countershaft assembly, a middle plate and a middle bearing, a rear shell and a rear bearing, and is characterized in that the countershaft assembly is fixedly arranged on the middle plate and is limited by a clamp ring and a cover plate, the front end of the countershaft assembly is supported by the front bearing on the front shell, the middle section of the countershaft assembly is supported by the middle plate, and the rear end of the countershaft assembly is supported by the rear bearing on the rear shell. By adopting the three-point supporting type distribution structure, the multipoint supporting structure has the characteristics of being simple in structure, convenient to install, low in cost and reliable to work.
Description
Technical field
The utility model relates to a kind of double-clutch automatic transmission countershaft assembly multi-point support structure, belongs to the Technology of Automatic Transmission for vehicle field of auto manufacturing.
Background technique
Along with the fast development of automobile pollution and the sharply increase of amateur driver's quantity, automatic gearbox is just presenting fast-developing trend.Present automatic gearbox mainly contains hydraulic mechanical type automatic transmission (AT), stepless speed variator (CVT) and double-clutch automatic transmission (DCT).
On automobile, realizing self-shifting speed changer is hydraulic mechanical type automatic transmission, is called for short AT, is also current most widely used automatic gearbox.It does not cut off power shfit, has starting, gear shift is smooth-going, to resisting moment change can self adaption etc. advantage.But the shortcomings such as it also has complex structure simultaneously, and difficulty is manufactured, and transmission efficiency is low.
Manually fixedly shaft type gear-shift transmission is step change driving mechanism, and its advantage is that efficiency is high, and cost is low, and mature production technology is widely used in China at present.Shortcoming is gear shift difficulty, and power interruption during gear shift, requires pilot control skilled, so people expect that it can realize automation.Computer Control Technology makes this gear realize automaitc shfit becomes possibility.Double-clutch automatic transmission (DCT) is automatic mechanical transmission of new generation, many advantages such as it has inherited that manual transmission transmission efficiency is high, installing space is compact, lightweight, low price, fundamentally solved the cut-out power shfit problem that electric control mechanical type automatic speed variator exists, greatly improved gear shift travelling comfort, guaranteed that vehicle has good power character and shift characteristic.
In double-clutch automatic transmission, each gear driving gear of speed changer is connected with two clutch C1, C2 arranging on input shaft respectively by strange, even number gear, and clutch C1, C2 replace transferring power to realize gear switch.
During DCT work, vehicle is first with certain gear operation, electrical control unit of automatic transmission (TCU) is about to next gear of the work of entering according to the signal judgement of related sensor, because of this gear clutch separation transferring power not also, therefore instruction hydraulic pressure controlling solenoid valve is controlled gear-shifting actuating mechanism very easily, mesh in advance this gear, when vehicle operating reaches shift point, only the clutch separation of working need to be engaged another clutch simultaneously, make automobile travel with next gear.In gearshift procedure, the power of motor is constantly passed to wheel all the time, so the gearshift procedure completing is like this power shfit.Vehicle has been realized timing, will improve greatly gear shift travelling comfort, also guarantees that vehicle has good Economy simultaneously, and the aspects such as vehicle oil consumption and discharge are made moderate progress.
Vertical postpone is driven formula double-clutch automatic transmission (DCT) and is had odd number shelves and even number shelves input shaft, jack shaft and output shaft.Countershaft assembly is arranged each grade of driven gear and synchronizer, and its support stiffness intensity directly affects the reliability of speed changer.
Summary of the invention
The purpose of this utility model is to provide a kind of double-clutch automatic transmission countershaft assembly multi-point support structure, and it adopts supported at three point mode layout, and Ju has the feature of the with low cost and reliable operation of the mono-﹑ An of Jie structure Jian dress Fang Bian ﹑.
The technical solution of the utility model is achieved in that double-clutch automatic transmission countershaft assembly multi-point support structure, by fore bearing, front case, countershaft assembly, middle plate, intermediate bearing, rear case and rear bearing form, and it is characterized in that: countershaft assembly is fixed on middle plate, spacing by snap ring and cover plate, countershaft assembly front end supports by the fore bearing on front case, and stage casing is supported by middle plate, and rear end is supported by the rear bearing on rear case.
The utility model good effect is that it is simple in structure, and characteristics of compact layout and support strength are good.
Accompanying drawing explanation
Fig. 1 is the utility model structural drawing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described: as shown in Figure 1, double-clutch automatic transmission countershaft assembly multi-point support structure, by fore bearing 1, front case 2, countershaft assembly 3, middle plate 4, intermediate bearing 5, rear case 6 and rear bearing 7 form, it is characterized in that: countershaft assembly 3 is fixed on middle plate 4, spacing by snap ring and cover plate, countershaft assembly 3 front ends support by the fore bearing 1 on front case 2, stage casing is supported by middle plate 4, rear end is supported by the rear bearing 7 on rear case 6, owing to adopting supported at three point, greatly improved the Rigidity and strength of axle system, be conducive to improve the bearing capacity of speed changer.
Claims (1)
1. double-clutch automatic transmission countershaft assembly multi-point support structure, by fore bearing, front case, countershaft assembly, middle plate, intermediate bearing, rear case and rear bearing form, and it is characterized in that: countershaft assembly is fixed on middle plate, spacing by snap ring and cover plate, countershaft assembly front end supports by the fore bearing on front case, and stage casing is supported by middle plate, and rear end is supported by the rear bearing on rear case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320385384.4U CN203395147U (en) | 2013-07-01 | 2013-07-01 | Multipoint supporting structure of automatic dual-clutch transmission (DCT) countershaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320385384.4U CN203395147U (en) | 2013-07-01 | 2013-07-01 | Multipoint supporting structure of automatic dual-clutch transmission (DCT) countershaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395147U true CN203395147U (en) | 2014-01-15 |
Family
ID=49906682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320385384.4U Expired - Lifetime CN203395147U (en) | 2013-07-01 | 2013-07-01 | Multipoint supporting structure of automatic dual-clutch transmission (DCT) countershaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395147U (en) |
-
2013
- 2013-07-01 CN CN201320385384.4U patent/CN203395147U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |