CN205618658U - Two separation and reunion derailleur hydraulic pressure select shifter - Google Patents
Two separation and reunion derailleur hydraulic pressure select shifter Download PDFInfo
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- CN205618658U CN205618658U CN201620292234.2U CN201620292234U CN205618658U CN 205618658 U CN205618658 U CN 205618658U CN 201620292234 U CN201620292234 U CN 201620292234U CN 205618658 U CN205618658 U CN 205618658U
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- oil cylinder
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Abstract
The utility model provides a two separation and reunion derailleur hydraulic pressure select shifter, includes fork structure, fork structure include hydro -cylinder connector, hydro -cylinder, piston and shift fork, the shift fork with be less than two hinge joint, the piston pass through transverse connection mechanism and shaft liner connection, the axle sleeve pass through adjustable structure and shift fork and connect. The utility model discloses a reduce holistic hydro -cylinder quantity, reduce the transmission housing processing degree of difficulty, reduce manufacturing procedure, practice thrift the cost, practiced thrift the derailleur inner space, it is more nimble to make the other part arrange, reduces the holistic volume of derailleur.
Description
Technical field
This utility model relates to automobile technical field, and it relates generally to a kind of hydraulic pressure gear-selecting-shifting mechanism for automobile double clutch speed changer.
Background technology
Double-clutch speed changer (Dual Clutch Transmission) DCT was initially invented two prewar, was based on the transmission design between manual transmission and automatic transmission；It has taken into account advantage and the advantage of self-shifting simple operations of the motility of manual shift, can ensure that the output free of discontinuities of power during gearshift.The occupation rate of double-clutch speed changer is more and more higher currently on the market because it has, gearshift is fast, save oil consumption, comfortable, the shift process of shifting gears does not has loss of machine of torque, the gear of high gear to change after speed promote fast, change to odd number gear or the lowest from even number gear changes to that even number keeps off when from odd number gear.
Hydraulic pressure gear-selecting-shifting mechanism is the critical component of double-clutch speed changer, and hydraulic pressure gear-selecting-shifting mechanism includes oil cylinder, piston, shift fork axle and shift fork.Oil cylinder and the oil duct of prior art transmission pressure gear-selecting-shifting mechanism are positioned in front and rear housings, and two oil cylinders therein partner, and promote pair of pistons to drive a corresponding shift fork；For a seven speed transmissions, in variator front and rear housings, one has eight oil cylinders and four shift forks；Its operation principle is: fluid enters oil cylinder pushing piston by oil duct under the effect of the pressure, and piston drives shift fork by connecting rod, and shift fork is axially moveable under the guide effect of shift fork axle, it is achieved shifting of transmission function.
Chinese invention patent application publication No. CN104913051A, at on 09 16th, 2015 Shen Qing Publication day, disclosing a kind of variator, it includes main shaft, at least one jackshaft, at least two gearshift lining, the gear train of each gear of multiple formation variators, in above-mentioned gear, at least one is castor, and castor can be coupled on the axle supporting this castor by gearshift lining, there is selector fork on gearshift lining, different gears can be selected by selector fork.But current hydraulic pressure gear-selecting-shifting mechanism uses two hydraulic jacks to drive a shifting fork structure complexity, and its volume takes up room greatly more；Case of transmission upper cylinder is arranged also can be more, has eight oil cylinders for the variators one of seven grades, causes oil duct processing difficulties, manufacturing cost higher.
Utility model content
This utility model in order to solve oil cylinder quantity in prior art and arrange too much, oil circuit design arrangement is inconvenient, manufacture the problem that processing cost is high, it is provided that a kind of double-clutch speed changer hydraulic pressure gear-selecting-shifting mechanism with single oil cylinder one shift fork of drive.
The technical solution of the utility model is: a kind of double-clutch speed changer hydraulic pressure gear-selecting-shifting mechanism, including two shifting fork structures, described shifting fork structure includes an oil cylinder adapter, two oil cylinders and two shift forks, two described oil cylinders are symmetrically distributed in the two ends of described oil cylinder adapter, it is provided with piston in described oil cylinder, described piston is connected from the side of described oil cylinder and axle sleeve by T-shaped connecting rod, described axle sleeve and described shift fork connect, described axle sleeve is positioned on shift fork axle, and described shift fork axle is connected with described oil cylinder adapter by cross bar.The speed changing effect of double-clutch speed changer is to be realized by the handsetting gear that moves back and forth of the shift fork on two shifting fork structures, goes for different size of gear by the size changing shift fork.This hydraulic pressure gear-selecting-shifting mechanism drives four shift forks with four oil cylinders, it is achieved the speed changing effect of double-clutch speed changer.More superior by technology compared with eight oil cylinders with traditional, both save the manufacturing cost of mechanism, reduce again the installing space of equipment.During operation, the oil pressure in oil cylinder promotes reciprocating motion of the pistons, because piston is connected by the connecting rod side from oil cylinder and axle sleeve, saves the length of connecting rod, also saves the space of linkage arrangement；Axle sleeve and shift fork connect, so the reciprocating motion of piston can drive shift fork to realize the function of reciprocal handsetting gear simultaneously.Axle sleeve has shift fork axle to guide, and shift fork axle is fixed with oil cylinder adapter by cross bar, and such all parts constitutes an entirety, the simple in construction of whole hydraulic pressure gear-selecting-shifting mechanism, small, be easily installed the end face at double-clutch speed changer.
As preferably, the centre position, side of described oil cylinder is provided with gathering sill, and the edge of described gathering sill is provided with spacing preiection at the inside wall of described oil cylinder, and described piston includes upper surface and lower surface；The oil cylinder described in the entrance of one end of described T-shaped connecting rod is pole, and the cross bar of described T-type structure is between described upper surface and lower surface and length is more than described gathering sill, and the width of described pole is less than described gathering sill.The connected mode of piston and axle sleeve have employed the method connected from oil cylinder side, because shift fork is also provided in oil cylinder side, so compared with typically from the mode of axially connection piston, this side connects the space that can save equipment, improves and controls the precision that shift fork moves simultaneously.Promoting connecting rod for convenience, the composition of piston includes that upper surface and lower surface, upper surface and lower surface are played sealing fluid force feed and promote the effect of connecting rod.The horizontal end of T-type structure is between the upper surface and lower surface of piston；When piston lower surface up moves, connecting rod is up pushed away by lower surface；Time down moving in piston upper surface, connecting rod is down pushed away by upper surface；Piston can drive axle sleeve and shift fork to move back and forth by promoting connecting rod.Being provided with gathering sill in the side of oil cylinder, connecting rod connects through gathering sill and axle sleeve, and the length of this gathering sill, less than the length of connecting rod one end in piston, is on the one hand possible to prevent connecting rod to come off from gathering sill, it is also possible to meet connecting rod and promoted by piston；It is provided with spacing preiection at the week edge of gathering sill, the inner surface of oil cylinder simultaneously, is limited by spacing preiection；By refueling in oil cylinder or pumping, upper surface and the lower surface of piston slidably reciprocate in piston, it is ensured that piston hydraulic oil in oil cylinder during movement will not leak by the gathering sill from side.The other end of connecting rod passes stopper slot connecting bushing, and axle sleeve and piston be arranged in parallel, parallel motion, and this connecting rod shortening piston and axle sleeve connects distance, improves the precision of control.
Described shift fork includes supporting plate, buckle and shift fork arm, and described supporting plate is connected with described axle sleeve；Described shift fork arm is connected by described buckle and described supporting plate, and with threaded fixing.Shift fork and axle sleeve use adjustable connected mode, if directly being difficult to regulate shift fork and the exact position of gear as an integral installation using shift fork, being on the other hand easy to the shift fork of worse damage or selecting different size of gear to be applicable to different gears.Axle sleeve stretches out two extension boards, by clamping, supporting plate and the two extension board is fixed.Regulation shift fork position on axle sleeve for convenience, shift fork includes three assemblies: supporting plate, the buckle being positioned on supporting plate and shift fork arm；Supporting plate is connected by buckle and supporting plate, fixing by being threaded connection after position adjustment.By fine setting shift fork arm, supporting plate, the connection of these assemblies of side plate, the position of shift fork can be more precisely controlled, preferably realize function.
The upper surface of described piston and the cross section of lower surface are H type, and its edge is provided with bulge-structure.The upper surface of piston and lower surface can cause two end faces to be easily damaged with the spacing preiection contact-impact on oil cylinder during movement.Therefore, the position contacted with spacing preiection with the edge of lower surface in upper surface be arranged to thicken edge, i.e. bulge-structure, can with Collision-free, improve oil cylinder durability.On the other hand, the contact surface of piston and oil cylinder that cross section is set as H type increases, and weight gain is few simultaneously so that oil cylinder is more steady in moving process.
Described oil cylinder adapter is provided with pouring orifice.Because each oil cylinder adapter is connected to two oil cylinders dorsad, so there being two pouring orifices being arranged side by side on each oil cylinder adapter.Each pouring orifice and a corresponding oil cylinder communicate, pouring orifice external connection oil fuel tube, control input and output hydraulic pressure oil, thus control the movement of piston.
Described oil cylinder is provided with shift fork position sensor.In order to the moment understands position and the gear of gear of shift fork, the back side of each shift fork is designed with shift fork position sensor.
Compared with prior art, its innovative point is this utility model: reduce the oil cylinder quantity on gear box casing, reduces gear box casing difficulty of processing, reduces manufacturing procedure, cost-effective；Saved variator inner space so that it is his parts are arranged more flexible, reduce the volume that variator is overall simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is partial sectional view of the present utility model.
In figure: 1. shifting fork structure, 2. oil cylinder adapter, 3. oil cylinder, 4. shift fork, 5. piston, 6. T-shaped connecting rod, 7. axle sleeve, 8. shift fork axle, 9. cross bar, 10. gathering sill, 11. spacing preiections, 12. upper surfaces, 13. lower surfaces, 14. poles, 15. bulge-structures, 16. supporting plates, 17. buckles, 18. shift fork arms, 19. pouring orifices, 20. shift fork position sensors.
Detailed description of the invention
The utility model is described in further detail below to use the drawings and specific embodiments.
As illustrated in fig. 1 and 2, a kind of double-clutch speed changer hydraulic pressure gear-selecting-shifting mechanism, it is made up of two shifting fork structures 1, this shifting fork structure 1 is provided with 2, two oil cylinders 3 of an oil cylinder adapter and two shift forks 4, two of which oil cylinder 3 is symmetrically distributed in the two ends of oil cylinder adapter 2, it is designed with piston 5 in two oil cylinders 3, this piston 5 is connected from the side of oil cylinder 3 and axle sleeve 7 by T-shaped connecting rod 6, this axle sleeve 7 and shift fork 4 connect, axle sleeve 7 is positioned on shift fork axle 8 simultaneously, and this shift fork axle 8 is connected by cross bar 9 is parallel with oil cylinder adapter 2；The centre position, side of oil cylinder 3 is provided with gathering sill 10, the edge of this gathering sill 10 is provided with spacing preiection 11 at the inside wall of oil cylinder 3, piston includes upper surface 12 and lower surface 13, one end of T-shaped connecting rod 6 is that pole 14 enters oil cylinder 3, the cross bar 9 of T-shaped connecting rod 6 between upper surface 12 and lower surface 13 and 1.5 times of a length of gathering sill 10, width is gathering sill 10 1/2nd of the pole 14 of T-shaped connecting rod 6；The length of the cross bar 9 of T-shaped connecting rod 6 is more than described gathering sill 10 and between the upper surface 12 and lower surface 13 of described piston 5, and the other end of T-shaped connecting rod 6 through described gathering sill 10 and connects with described axle sleeve 7；Shift fork includes that supporting plate 16, buckle 17 and shift fork arm 18, supporting plate 16 are connected with described axle sleeve 7, and shift fork arm 18 is connected by described buckle 17 and supporting plate 16 and uses threaded fixing；The upper surface 12 of piston 5 and the edge of lower surface 13 are provided with bulge-structure 15；Oil cylinder adapter 2 is provided with pouring orifice 19；Oil cylinder 3 is provided with position sensor 20.
This hydraulic pressure gear-selecting-shifting mechanism connects by the housing of each fixed support being arranged on shift fork axle and double-clutch speed changer is fixing, because its deft design, the space shared by parts is smaller.Pouring orifice on each oil cylinder connects hydraulic oil pipe, and the flowing of hydraulic oil can control the motion of piston, final drive shift fork motion.By threadeding and buckle of fine setting shift fork arm and supporting plate, and the clamping position of supporting plate and sidewall, the position of shift fork is accurately set.When bottom the position of shift fork is in, the hydraulic oil in the oil cylinder of upper surface is pumped, and after hydraulic oil is by injecting oil cylinder with the oil pipe of pouring orifice connection, the lower surface of piston is promoted up to advance, the link motion outside the drive of T-shaped connecting rod in piston；Because the cross bar of T-shaped connecting rod is between the upper surface and lower surface of piston, more than on oil cylinder, the width of the length montant of gathering sill is less than described gathering sill, so the lower surface of oil cylinder can promote cross bar to move up movement for the length of its cross bar；Up moving through gathering sill drive axle sleeve and the shift fork fixing with axle sleeve of connecting rod, the moving direction of axle sleeve is guided by shift fork axle, and and piston parallel motion, piston-advance is limited by the spacing preiection on oil cylinder the most afterwards, maintaining static, shift fork moves to upper position the most at last；On the other hand, the upper end of oil cylinder and the injection system of gear shift cover coordinate, when the position of shift fork is in top, oil cylinder bottom liquid force feed is pumped from pouring orifice, change speed gear box injection system down moves toward upper end surface oiling, piston upper surface, drives shift fork to move down；Piston is similarly subjected to the restriction of spacing preiection and can not retreat always, prevents hydraulic oil from leaking from the opening part of stopper slot simultaneously.The upper surface of piston and the edge of lower surface are all that thickness increases simultaneously, are possible to prevent when spacing collision effect occurs to cause end face to damage it is also ensured that piston movement is steady；The position of shift fork is measured by shift fork position sensor in real time, and recorded the control system of automobile, can control to adjust the position of gear, the gear of regulation and control automobilism in real time.Shift fork axle and oil cylinder be arranged in parallel, and shift fork axle is fixed with oil cylinder adapter by cross bar, and parallel with axle sleeve for piston fixing connection, piston and axle sleeve synchronous parallel are moved by connecting rod；Therefore this structure saves space, reduces processing cost simultaneously, moves at control shift fork and is also improved.
Claims (6)
1. a double-clutch speed changer hydraulic pressure gear-selecting-shifting mechanism, including two shifting fork structures (1), it is characterized in that, described shifting fork structure (1) includes an oil cylinder adapter (2), two oil cylinders (3) and two shift forks (4), two described oil cylinders (3) are symmetrically distributed in the two ends of described oil cylinder adapter (2), it is provided with piston (5) in described oil cylinder (3), described piston (5) is connected from the side of described oil cylinder (3) and axle sleeve (7) by T-shaped connecting rod (6), described axle sleeve (7) and described shift fork (4) connect, described axle sleeve (7) is positioned on shift fork axle (8), described shift fork axle (8) is connected with described oil cylinder adapter (2) by cross bar (9).
2. double-clutch speed changer hydraulic pressure gear-selecting-shifting mechanism as claimed in claim 1, it is characterized in that, the centre position, side of described oil cylinder (3) is provided with gathering sill (10), and the edge of described gathering sill (10) is provided with spacing preiection (11) at the inside wall of described oil cylinder (3)；Described piston (5) includes upper surface (12) and lower surface (13)；The oil cylinder (3) described in pole (14) entrance of described T-shaped connecting rod (6) is, the cross bar (9) of described T-shaped connecting rod (6) is positioned between described upper surface (12) and lower surface (13) and length is more than described gathering sill (10), and described pole (14) width is less than described gathering sill (10).
3. double-clutch speed changer hydraulic pressure gear-selecting-shifting mechanism as claimed in claim 1 or 2, it is characterised in that described shift fork includes that supporting plate (16), buckle (17) and shift fork arm (18), described supporting plate (16) are connected with described axle sleeve (7)；Described shift fork arm (18) is connected by described buckle (17) and described supporting plate (16), and with threaded fixing.
4. double-clutch speed changer hydraulic pressure gear-selecting-shifting mechanism as claimed in claim 3, it is characterised in that the upper surface (12) of described piston (5) and the cross section of lower surface (13) are H type, and its edge is provided with bulge-structure (15).
5. double-clutch speed changer hydraulic pressure gear-selecting-shifting mechanism as claimed in claim 4, it is characterised in that described oil cylinder adapter (2) is provided with pouring orifice (19).
6. double-clutch speed changer hydraulic pressure gear-selecting-shifting mechanism as claimed in claim 5, it is characterised in that described oil cylinder (3) is provided with shift fork position sensor (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620292234.2U CN205618658U (en) | 2016-04-07 | 2016-04-07 | Two separation and reunion derailleur hydraulic pressure select shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620292234.2U CN205618658U (en) | 2016-04-07 | 2016-04-07 | Two separation and reunion derailleur hydraulic pressure select shifter |
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| Publication Number | Publication Date |
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| CN205618658U true CN205618658U (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620292234.2U Active CN205618658U (en) | 2016-04-07 | 2016-04-07 | Two separation and reunion derailleur hydraulic pressure select shifter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022017550A3 (en) * | 2021-11-02 | 2022-09-15 | 舍弗勒技术股份两合公司 | Hydraulic shift fork assembly and shift actuator for dual clutch transmission |
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2016
- 2016-04-07 CN CN201620292234.2U patent/CN205618658U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022017550A3 (en) * | 2021-11-02 | 2022-09-15 | 舍弗勒技术股份两合公司 | Hydraulic shift fork assembly and shift actuator for dual clutch transmission |
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