CN204201042U - A kind of shift control mechanism being applied to double-clutch automatic transmission - Google Patents
A kind of shift control mechanism being applied to double-clutch automatic transmission Download PDFInfo
- Publication number
- CN204201042U CN204201042U CN201420554442.6U CN201420554442U CN204201042U CN 204201042 U CN204201042 U CN 204201042U CN 201420554442 U CN201420554442 U CN 201420554442U CN 204201042 U CN204201042 U CN 204201042U
- Authority
- CN
- China
- Prior art keywords
- fork
- linear bearing
- shift fork
- shift
- shifting
- 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
Landscapes
- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model relates to a kind of shift control mechanism being applied to double-clutch automatic transmission, it is characterized in that: transition arm is rotated around the bearing pin be fixed on housing, be connected with the form of Spielpassung with control module piston with the shifting fork assembly at two ends respectively, transmit gear shifting force; Shifting fork assembly is made up of shift fork and two linear bearings; Shift fork and linear bearing have fitted together slip, and linear bearing is fitted in shift fork two stomidium; Linear bearing adopts built-in ball and external diameter steel sleeve structure, and shift fork notch adopts transversal slotting, and what linear bearing coordinated with fork shaft is rolling friction.Adopt linear bearing that the sliding friction between shift fork and fork shaft is transformed into rolling friction, force of rolling friction is far smaller than force of sliding friction, reduce gearshift resistance, be conducive to realizing self shifter, gearshift is driven in order to adapt to hydraulic piston, the fluting form of prong is also different from traditional structure, and its Ju has the feature of Jie structure Jian mono-﹑ Gao Qiang Du ﹑ reliable operation.
Description
Technical field
The utility model relates to a kind of shift control mechanism being applied to double-clutch automatic transmission, belongs to the automatic gearbox 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, realize self-shifting speed changer is hydraulic mechanical type automatic transmission, and being called for short AT, is also current most widely used automatic gearbox.It does not cut off power gear shifting, has starting, smooth gear shifting, can the advantage such as self adaption to resisting moment change.But it also has complex structure simultaneously, difficult manufacture, the shortcomings such as transmission efficiency is low.
Manually fixing shaft type gear-shift transmission is step change driving mechanism, and its advantage is that efficiency is high, and cost is low, mature production technology, is widely used at present in China.Shortcoming is gearshift difficulty, and power interruption during gearshift requires that pilot control is skilled, so people expect that it can realize automation.Computer Control Technology makes this gear realize self shifter becomes possibility.Double-clutch automatic transmission (DCT) is the automatic mechanical transmission of a new generation, many advantages such as it inherits that manual transmission transmission efficiency is high, installing space is compact, lightweight, low price, fundamentally solve the cut-out power gear shifting problem that electric control mechanical type automatic speed variator exists, drastically increase shifting comfort, ensure that vehicle has good power character and gear shifting characteristic.
In double-clutch automatic transmission, speed changer each gear driving gear is connected with two clutches C1, C2 that input shaft is arranged respectively by odd, even several gear, and clutch C1, C2 replace transferring power and switch to realize gear.
During DCT work, vehicle first runs with certain gear, electrical control unit of automatic transmission (TCU) judges according to the signal of related sensor next gear being about to the work of entering, because of this gear clutch separation also non-transferring power, therefore instruction hydraulic pressure controlling solenoid valve controls gear shifting actuating mechanism very easily, engages this gear in advance, when vehicle operating reaches shifting points, only need the clutch separation that will working, another clutch is engaged simultaneously, then make automobile travel with next gear.In shift process, the power of motor is constantly passed to wheel all the time, so the shift process completed like this is power gear shifting.Vehicle achieves power gear shifting process, will improve shifting comfort greatly, also ensures that vehicle has good Economy simultaneously, the aspect such as vehicle oil consumption and discharge is made moderate progress.
Shift control mechanism completes gearshift function in the transmission, forms primarily of shift fork and fork shaft.Double-clutch automatic transmission selector fork not only requires to have enough Rigidity and strengths, and flexibly, frictional force is little to need the motion when shifting gears, and then reduces gear shifting force.
Traditional design generally adopts shift fork reciprocating linear on fork shaft to slide and realizes gearshift, due to the cylindricity tolerance in axle and hole in technique not easily guarantee gear shifting force can be caused large.Double-clutch automatic transmission adopts hydraulic pressure automatically to control gearshift form, very harsh to the requirement of gear shifting force.
Summary of the invention
The purpose of this utility model is to provide a kind of shift control mechanism being applied to double-clutch automatic transmission, adopt linear bearing that the sliding friction between shift fork and fork shaft is transformed into rolling friction, force of rolling friction is far smaller than force of sliding friction, reduce gearshift resistance, be conducive to realizing self shifter, drive gearshift to adapt to hydraulic piston, the fluting form of prong is also different from traditional structure, and its Ju has the feature of Jie structure Jian mono-﹑ Gao Qiang Du ﹑ reliable operation.
The technical solution of the utility model is achieved in that a kind of shift control mechanism being applied to double-clutch automatic transmission, it is characterized in that: transition arm is rotated around the bearing pin be fixed on housing, be connected with the form of Spielpassung with control module piston with the shifting fork assembly at two ends respectively, transmit gear shifting force; Shifting fork assembly is made up of shift fork and two linear bearings; Shift fork and linear bearing have fitted together slip, and linear bearing is fitted in shift fork two stomidium; Linear bearing adopts built-in ball and external diameter steel sleeve structure, and shift fork notch adopts transversal slotting, and what linear bearing coordinated with fork shaft is rolling friction.
Described shifting fork assembly is undertaken spacing by the self-lock pin be fixed on housing.
The utility model good effect is the feature with flexible and changeable space setting type and high strength, reliable operation.Shift fork and fork shaft adopt linear bearing to coordinate, and are transformed into rolling friction with the sliding friction of fork shaft, reduce surface friction drag, have the advantages that gear shifting force little ﹑ is smooth-going, efficiency is high.Fork drawing material adopts cast steel, has the advantages that Jie structure Jin Cou ﹑ intensity is high.
Accompanying drawing explanation
Fig. 1 is the utility model patent layout plan.
Fig. 2 is the utility model patent shifting fork assembly structural drawing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described: a kind of shift control mechanism being applied to double-clutch automatic transmission, it is characterized in that: transition arm 4 is rotated around the bearing pin 5 be fixed on housing, be connected with the form of Spielpassung with control module piston 1 with the shifting fork assembly 2 at two ends respectively, transmit gear shifting force; Shifting fork assembly is made up of shift fork 2 and two linear bearings 6; Shift fork and linear bearing have fitted together slip, and linear bearing 6 is fitted in shift fork 2 liang of stomidiums; Linear bearing 6 adopts built-in ball and external diameter steel sleeve structure, and shift fork 2 notch adopts transversal slotting, and what linear bearing 6 coordinated with fork shaft is rolling friction.
Linear bearing 6 coordinates with fork shaft and is transformed to rolling friction by sliding friction, reduces surface friction drag, has the smooth-going and feature that efficiency is high of gear shifting force little ﹑.Meanwhile, shifting fork assembly 2 is undertaken spacing by the self-lock pin 3 be fixed on housing, and reliability is high.
Keeping off between shifting fork assemblies and the piston of control module away from three, five of control module, transmitting gear shifting force by transition arm 4 mechanism, the space of shift control mechanism being arranged compacter.Transition arm 4 is connected with housing by bearing pin 5, two ends respectively with the prong of shifting fork assembly and the piston mouth Spielpassung of control module, and fitting surface adopts cylndrical surface and plane structure, to reduce friction.Shift fork and linear bearing have been assembled together and have been slidably matched.
In gearshift working procedure, control module piston 1, under the effect of hydraulic coupling, promotes each gear shift fork 2 and transition arm 4, then respectively keeps off shift fork 2 and promotes synchronizer gear sleeve, finally complete whole gear shifting action.
Claims (2)
1. be applied to a shift control mechanism for double-clutch automatic transmission, it is characterized in that: transition arm is rotated around the bearing pin be fixed on housing, is connected respectively with the shifting fork assembly at two ends with control module piston with the form of Spielpassung, transmit gear shifting force; Shifting fork assembly is made up of shift fork and two linear bearings; Shift fork and linear bearing have fitted together slip, and linear bearing is fitted in shift fork two stomidium; Linear bearing adopts built-in ball and external diameter steel sleeve structure, and shift fork notch adopts transversal slotting, and what linear bearing coordinated with fork shaft is rolling friction.
2., according to a kind of shift control mechanism being applied to double-clutch automatic transmission described in claim 1, it is characterized in that described shifting fork assembly is undertaken spacing by the self-lock pin be fixed on housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420554442.6U CN204201042U (en) | 2014-09-25 | 2014-09-25 | A kind of shift control mechanism being applied to double-clutch automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420554442.6U CN204201042U (en) | 2014-09-25 | 2014-09-25 | A kind of shift control mechanism being applied to double-clutch automatic transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204201042U true CN204201042U (en) | 2015-03-11 |
Family
ID=52659006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420554442.6U Active CN204201042U (en) | 2014-09-25 | 2014-09-25 | A kind of shift control mechanism being applied to double-clutch automatic transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204201042U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315139A (en) * | 2014-09-25 | 2015-01-28 | 中国第一汽车股份有限公司 | Shifting operation mechanism applied to double clutch type automatic transmission |
-
2014
- 2014-09-25 CN CN201420554442.6U patent/CN204201042U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315139A (en) * | 2014-09-25 | 2015-01-28 | 中国第一汽车股份有限公司 | Shifting operation mechanism applied to double clutch type automatic transmission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101949430A (en) | Novel double clutch type automatic transmission (DCT) layout structure | |
| CN205101493U (en) | Two separation and reunion derailleurs of cam formula of shifting | |
| CN204610712U (en) | A kind of novel all electric power failure-free automatic speed changer for machine | |
| CN102338213A (en) | Novel parking braking mechanism of dual clutch automatic transmission (DCT) | |
| CN204201042U (en) | A kind of shift control mechanism being applied to double-clutch automatic transmission | |
| CN203395165U (en) | Automatic dual-clutch transmission (DCT) parking axle limiting device | |
| CN202280826U (en) | Hydraulically-controlled speed change mechanism | |
| CN104315139A (en) | Shifting operation mechanism applied to double clutch type automatic transmission | |
| CN202360746U (en) | Novel shifting fork assembly of automatic dual clutch transmission (DCT) | |
| CN204201033U (en) | A kind of novel double-clutch automatic transmission shift control mechanism | |
| CN204573021U (en) | Be applied to the idle pulley gasket construction that reverses gear of double-clutch automatic transmission | |
| CN203395167U (en) | Parking brake pull rod assembly of double-clutch type automatic transmission | |
| CN202360731U (en) | Structure for controlling flow rate and flow direction of lubricating oil in intermediate shaft of automatic speed changer | |
| CN202371093U (en) | Second-gear reverse-gear structure of double-clutch type automatic speed changer | |
| CN204041963U (en) | A kind of novel double-clutch automatic transmission (DCT) countershaft assembly | |
| CN204327929U (en) | A kind of chain support block structure of double-clutch automatic transmission | |
| CN202048147U (en) | Double-clutch type automatic transmission structure | |
| CN203770621U (en) | Novel double-clutch automatic transmission parking brake pawl assembly | |
| CN204041897U (en) | A kind of novel double-clutch automatic transmission input shaft assembly | |
| CN202371122U (en) | Novel front bearing cap structure of dual-clutch automatic gearbox | |
| CN203395168U (en) | Parking return torsional spring limiting device of double-clutch type automatic transmission | |
| CN205618659U (en) | Novel dual clutch transmission self -locking pin and control valve block integrated morphology | |
| CN202418444U (en) | Structure for double-clutch type automatic transmission to realize fast starting of vehicle | |
| CN203395166U (en) | Plate spring assembly of automatic dual-clutch transmission (DCT) parking brake | |
| CN203362910U (en) | Double-clutch-type automatic gearbox parking brake limiting gasket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |