EP2203664A1 - Getriebewellenanordnung für ein doppelkupplungsgetriebe - Google Patents
Getriebewellenanordnung für ein doppelkupplungsgetriebeInfo
- Publication number
- EP2203664A1 EP2203664A1 EP08787116A EP08787116A EP2203664A1 EP 2203664 A1 EP2203664 A1 EP 2203664A1 EP 08787116 A EP08787116 A EP 08787116A EP 08787116 A EP08787116 A EP 08787116A EP 2203664 A1 EP2203664 A1 EP 2203664A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- hollow shaft
- bearing
- stub
- hollow
- 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.)
- Withdrawn
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 35
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000009977 dual effect Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0018—Shaft assemblies for gearings
- F16H57/0037—Special features of coaxial shafts, e.g. relative support thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by parallel flow paths, e.g. dual clutch transmissions
Definitions
- the invention relates to a transmission shaft assembly for a dual-clutch transmission, in particular with a driven by a push rod dry double clutch.
- a dual-clutch transmission for a motor vehicle is known.
- This dual-clutch transmission comprises an input shaft arrangement with a hollow shaft and a stub shaft mounted therein. On an end journal portion of the hollow shaft designed as a multi-plate clutch coupling device is placed. About this coupling device, a coupling of the hollow shaft can be achieved with the stub shaft.
- This inserted running gear shaft assembly is mounted on both sides in a transmission housing.
- a dual-clutch transmission for a motor vehicle which has two concentrically arranged, and connectable via a coupling input shafts which are mounted on both sides in a transmission housing.
- the invention has for its object to provide solutions by which it is possible to improve the mechanical performance of a dual-clutch transmission, in particular during the change of Kupplungsseingszu- states.
- This object is achieved by a transmission shaft assembly for a dual-clutch transmission with:
- a stub shaft is inserted in sections in the hollow shaft and passes through the hollow shaft
- this transmission shaft assembly is characterized in that the hollow shaft bearing and the Steckwellenzapfenlager are designed as a preloaded bearing, so that over these two bearings, the stub shaft is axially clamped against the hollow shaft.
- an effective between the hollow shaft and the stub shaft axial bearing means is provided, through which the stub shaft and the hollow shaft are supported against each other.
- This thrust bearing can be preferably designed as an axial needle bearing, or axial cylindrical roller bearings, and in particular as a tapered or angular contact ball bearings.
- This thrust bearing is structurally designed such that the axial forces applied by means of the axial clamping of the plug-in shaft and the hollow shaft reliably absorb.
- This thrust bearing is preferably located in the region of the stub shaft journal bearing end region of the hollow shaft.
- the hollow shaft may be configured to be integral with the gears carried by the hollow shaft. It is also possible to provide the hollow shaft with flange or pin structures over which the gears rotating with the hollow shaft are secured on the hollow shaft.
- the respectively provided for axial prestressing of the hollow shaft and the stub shaft bearings are preferably designed as angular contact ball bearings.
- the applied over these bearings, axial clamping force is preferably adjusted so that this amount corresponds to at least one actuation force, which is required for actuating a seated on the hollow shaft coupling.
- the axial clamping force is at least 120 N.
- the stub shaft is preferably mounted radially in the hollow shaft via a plurality of stub shaft bearings. These stub shaft bearings are preferably designed as needle bearings.
- This thrust bearing can be realized in particular by a double-row angular contact ball bearings.
- Figure 1 is an axial sectional view illustrating a transmission shaft assembly according to the invention for a dual-clutch transmission.
- the gear shaft assembly shown in Figure 1 forms as such part of a dual clutch transmission, in particular a dual clutch transmission with dry clutches.
- the gear shaft assembly comprises a hollow shaft 1 and a stub shaft 2, which is partially inserted into the hollow shaft 1 and the hollow shaft 1 passes through such that the stub shaft 2 still protrudes with a protrusion U on a front end portion S of the hollow shaft 1.
- a coupling device not shown here is placed in a conventional manner.
- the transmission shaft assembly further comprises a hollow shaft bearing 3, which serves as such the axial and radial bearing of the hollow shaft 1 and a Steckwellenlager owned 4, 5 for supporting the stub shaft 2 in the hollow shaft 1.
- the bearing of a hollow shaft 1 facing away from pin portion of the stub shaft 2 is by a Stub shaft journal bearing 6 accomplished.
- the transmission shaft assembly shown here is characterized in that both the hollow shaft bearing 3, and the Steckwellenzapfenlager 6 are designed as preloaded bearings, so that the stub shaft 2 is stretched axially against the hollow shaft 1 via these two bearings 3, 6.
- a thrust bearing 7 is provided between the hollow shaft 1 and the stub shaft.
- This thrust bearing 7 is executed in the embodiment shown here as a cylindrical roller bearing. It is also possible to carry out this thrust bearing also as angular contact ball bearings or possibly also as a tapered, barreled or ball roller bearing.
- the hollow shaft bearing 3 is designed as angular contact ball bearings. By this angular contact ball bearing the hollow shaft 1 is mounted both axially and radially.
- the Steckwellenzapfenlager 6 is designed as angular contact ball bearings. The extent of the biasing force applied by the two bearings 3, 6 on the shaft assembly can be adjusted by washers or by other means for clamping the corresponding bearing ring.
- the bias voltage is preferably set so high that no unduly high load on the bearings 3, 6 and in particular also between the hollow shaft 1 and the stub shaft 2 effective thrust bearing 7 results.
- the biasing force is significantly higher than the actuation forces required for actuating the clutch device (not shown). These clutch actuation forces can be transmitted, for example, via the push rod 8 inserted here into the stub shaft 2. Due to the present invention realized by the bearings 3, 6 and the thrust bearing 7 strained arrangement of the plug-in shaft 2 and the hollow shaft 1 is achieved that under the action of the push rod 8 applied actuating forces no impermissible displacement of the coupling components.
- the concept according to the invention makes it possible in a surprisingly effective manner to avoid the unexpected readjustment and the occurrence of noises during shifting, which is feared in the case of dual-clutch transmissions. Due to the inventive concept, it is possible in particular to prevent an axial displacement of the stub shaft 2 and the hollow shaft 1 within the gear housing and a displacement of the stub shaft 2 relative to the hollow shaft 1.
- the inventive concept for supporting the transmission shaft assembly is particularly suitable for dual-clutch transmissions in which the seated on this transmission shaft assembly coupling device is designed as a dry clutch.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200710045251 DE102007045251A1 (de) | 2007-09-21 | 2007-09-21 | Getriebewellenanordnung für ein Doppelkupplungsgetriebe |
| PCT/EP2008/060542 WO2009040186A1 (de) | 2007-09-21 | 2008-08-11 | Getriebewellenanordnung für ein doppelkupplungsgetriebe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2203664A1 true EP2203664A1 (de) | 2010-07-07 |
Family
ID=40046054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08787116A Withdrawn EP2203664A1 (de) | 2007-09-21 | 2008-08-11 | Getriebewellenanordnung für ein doppelkupplungsgetriebe |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2203664A1 (de) |
| CN (1) | CN101802458A (de) |
| DE (1) | DE102007045251A1 (de) |
| WO (1) | WO2009040186A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913029A (zh) * | 2015-06-16 | 2015-09-16 | 南京高精齿轮集团有限公司 | 可承受附加轴向力的人字齿轮副及其在齿轮箱中的应用 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4123493C2 (de) * | 1991-07-16 | 1998-04-09 | Daimler Benz Ag | Lagerung von Getriebewellen in einem Zahnräderwechselgetriebe eines Kraftfahrzeuges |
| DE19821164B4 (de) | 1998-05-12 | 2008-04-17 | Volkswagen Ag | Doppelkupplungsgetriebe |
| DE10153014A1 (de) | 2001-10-26 | 2003-05-08 | Volkswagen Ag | Lagerung der Eingangswellen eines Doppelkupplungsgetriebes |
| DE10332210A1 (de) * | 2003-07-16 | 2005-02-17 | Daimlerchrysler Ag | Doppelkupplungsgetriebe |
| FR2882417B1 (fr) * | 2005-02-24 | 2008-08-29 | Renault Sas | Montage de roulements sur des arbres concentriques |
| FR2883061B1 (fr) * | 2005-03-14 | 2008-10-17 | Renault Sas | Boite de vitesses a double arbre primaire comprenant un systeme de butees axiales et vehicule automobile comprenant une telle boite de vitesses |
-
2007
- 2007-09-21 DE DE200710045251 patent/DE102007045251A1/de not_active Ceased
-
2008
- 2008-08-11 CN CN200880108225A patent/CN101802458A/zh active Pending
- 2008-08-11 EP EP08787116A patent/EP2203664A1/de not_active Withdrawn
- 2008-08-11 WO PCT/EP2008/060542 patent/WO2009040186A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009040186A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009040186A1 (de) | 2009-04-02 |
| DE102007045251A1 (de) | 2009-04-02 |
| CN101802458A (zh) | 2010-08-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20100421 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
| 17Q | First examination report despatched |
Effective date: 20100921 |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20120306 |
|
| P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230523 |