WO2015132066A1 - Boîte manuelle à engrenages - Google Patents
Boîte manuelle à engrenages Download PDFInfo
- Publication number
- WO2015132066A1 WO2015132066A1 PCT/EP2015/053170 EP2015053170W WO2015132066A1 WO 2015132066 A1 WO2015132066 A1 WO 2015132066A1 EP 2015053170 W EP2015053170 W EP 2015053170W WO 2015132066 A1 WO2015132066 A1 WO 2015132066A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmission
- gear change
- countershaft
- shaft
- roller bearing
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims description 45
- 230000009977 dual effect Effects 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 10
- 239000000446 fuel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
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
- F16H57/02—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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
- F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
- F16C19/546—Systems with spaced apart rolling bearings including at least one angular contact bearing
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
Definitions
- the invention relates to a change-speed gearbox, comprising at least one drive shaft, at least one output shaft and at least one countershaft, which is engageable with the drive shaft and the output shaft via teeth in engagement, wherein at least one of the transmission shafts is mounted in its axial end regions, each with a rolling bearing , Gear change gears of this type are well known.
- the countershaft - where appropriate, there are two of these - is usually stored by means of two tapered roller bearings, which are employed axially. This axial and radial loads can be transmitted safely. Only the input shaft is usually stored in a fixed-LosLagerung. In the case of a gearbox with two countershafts, it is also intended to be stored in two engaged tapered roller bearings.
- the invention is therefore based on the object, a gear change transmission of the type mentioned in such a way that the friction in the bearing of the transmission is minimized without reducing the life of the transmission. This is to reduce the power required in the transmission and thus the fuel consumption of the vehicle. Furthermore, in the operation of the vehicle, the C0 2 - emissions can be reduced.
- the solution to this problem by the invention provides that the one rolling bearing for supporting the at least one transmission shaft is a tapered roller bearing and the other rolling bearing for supporting the same transmission shaft is a deep groove ball bearing.
- the invention thus turns away from the previously known concept according to which the transmission shafts, in particular the countershaft, is always mounted in two salaried tapered roller bearings.
- the teeth are preferably helical serrations. They may be arranged so that in the train operation, the at least one transmission shaft, in particular the countershaft, always only in an axial direction of the transmission shaft is loaded. In this case, practically only the tapered roller bearing is subjected to an axial load, while the deep groove ball bearing transmits substantially only radial loads.
- the change-speed gearbox can also have a first and a second countershaft. Then it is preferably provided that a countershaft is mounted by means of the tapered roller bearing and the deep groove ball bearing, wherein the other countershaft is mounted by means of a tapered roller bearing and an angular contact ball bearing.
- the change-speed gearbox is preferably a motor vehicle change-speed gearbox. It is especially thought of a car transmission. It can be designed as a manual transmission or as an automated manual transmission.
- a dual-clutch transmission it is used in the embodiment as a dual-clutch transmission; this preferably has two countershafts.
- the invention thus proposes that at least one of the countershafts of the change-speed gearbox is mounted with a roller bearing combination, which consists of a deep groove ball bearing and a tapered roller bearing.
- a roller bearing combination which consists of a deep groove ball bearing and a tapered roller bearing.
- This is preferably the storage of a second countershaft, as used for example in a dual-clutch transmission.
- a combination of tapered roller bearings and deep groove ball bearings is used for storage in particular a second countershaft instead of two tapered roller bearings. Due to the direction of the forces acting in the teeth, advantageously almost all resulting axial forces are absorbed by the tapered roller bearing.
- the existing deep groove ball bearing is thus largely loaded only radially.
- the proposed solution makes it possible to store the countershaft - in particular the second countershaft in a change-speed gearbox - with less friction than before. Accordingly, power in the area of the transmission can be saved, which also reduces fuel consumption as a result. This effect is particularly noticeable in the case of a passenger car manual transmission.
- FIG. 1 shows schematically a change-speed gearbox of a passenger car and the side view of a countershaft of the change-speed gearbox according to FIG. 1.
- a change-speed gearbox 1 is shown schematically. It has a drive shaft 2 and an output shaft 3. The torque is transmitted via a countershaft 4. To this end, gears 5 and 6 are provided which can transmit the torque.
- the change-speed gearbox 1 may also have two countershafts 4; this case is not shown.
- each countershaft 4 is mounted in its two axial end portions 7 and 8, each with a rolling bearing 9 and 10. Details on this are shown in FIG. 2.
- the one roller bearing 9 is formed as a tapered roller bearing, which is known per se.
- the other rolling bearing 10 is a deep groove ball bearing. Since the two gears 5, 6 are formed as helical gears, axial forces are generated or transmitted via the teeth in operation. The gears are arranged so that in the train operation, the countershaft is pushed in the embodiment to the right. Accordingly, the tapered roller bearing 9 is axially loaded in this standard load, while the deep groove ball bearing 10 remains largely free of axial forces and only radial loads must be transmitted.
- the other, not shown countershaft can be supported by means of a tapered roller bearing and an angular contact ball bearing, which corresponds to a preferred embodiment of the invention.
- the friction in the gear can be minimized.
- the arrangement is - as described - designed so that in the train operation, the countershaft 4 runs against the tapered roller bearing 9, d. H. the axial forces are absorbed exclusively by the tapered roller bearing 9.
- the deep groove ball bearing 10 then transmits no axial forces; it runs only with radial load.
- the deep groove ball bearing 10 is axially fixed on one side only, ie, it can be applied to the axial forces occurring. dents in train operation and so only radial forces, but no axial forces transmitted.
- the bearing according to the invention for the countershaft 4 is described. It can be used analogously for the drive or output shaft 2, 3.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
L'invention concerne une boîte manuelle à engrenage (1), comprenant au moins un arbre d'entraînement (2), au moins un arbre de sortie (3) et au moins un arbre intermédiaire (4), qui peut être amené en prise avec l'arbre d'entraînement (2) et l'arbre de sortie (3) par l'intermédiaire de dentures (5, 6). Au moins un des arbres (2, 3, 4) est monté, dans leurs zones d'extrémité (7, 8) axiales, par respectivement un palier de roulement (9, 10). L'invention vise à réduire au minium la friction dans la boîte. A cet effet, l'un des paliers de roulement (9) servant au montage du ou des arbres (2, 3, 4) est un roulement conique à rouleaux, et l'autre palier de roulement (10) servant au montage de l'arbre (2, 3, 4) est un roulement rainuré à billes.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014204061.2A DE102014204061B4 (de) | 2014-03-06 | 2014-03-06 | Zahnräderwechselgetriebe |
DE102014204061.2 | 2014-03-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015132066A1 true WO2015132066A1 (fr) | 2015-09-11 |
Family
ID=53883957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2015/053170 WO2015132066A1 (fr) | 2014-03-06 | 2015-02-16 | Boîte manuelle à engrenages |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102014204061B4 (fr) |
WO (1) | WO2015132066A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015223064A1 (de) * | 2015-11-23 | 2017-05-24 | Zf Friedrichshafen Ag | Wälzlager, Getriebe sowie Kraftfahrzeug |
WO2021099035A1 (fr) * | 2019-11-20 | 2021-05-27 | Robert Bosch Gmbh | Accouplement d'arbres entre un arbre de rotor d'une machine électrique et un arbre d'entrée d'une boîte de vitesses |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3072748B1 (fr) * | 2017-10-24 | 2021-02-19 | Renault Sas | Empilage de ligne d'arbres de transmission avec rondelle de calage indexee, procede de montage et transmission |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0177286A2 (fr) * | 1984-09-27 | 1986-04-09 | Toyota Jidosha Kabushiki Kaisha | Transmission de puissance pour véhicules à quatre roues motrices |
US5598747A (en) * | 1995-05-04 | 1997-02-04 | Dana Corporation | Thermal compensating bearing support structure for transmission case |
DE10253416A1 (de) * | 2002-11-08 | 2004-05-27 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Stufengetriebe für ein Kraftfahrzeug |
WO2005008098A1 (fr) * | 2003-07-16 | 2005-01-27 | Daimlerchrysler Ag | Embrayage double |
DE102007003675A1 (de) * | 2007-01-25 | 2008-07-31 | Schaeffler Kg | Stirnraddifferenzial mit einem Planetentrieb |
US20100099526A1 (en) * | 2008-10-20 | 2010-04-22 | Aisin Aw Co., Ltd. | Belt type continuously variable transmission |
DE102011010204A1 (de) * | 2011-02-03 | 2012-08-09 | Daimler Ag | Antriebsstrang für ein Kraftfahrzeug |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006054281A1 (de) * | 2006-11-17 | 2008-06-12 | Zf Friedrichshafen Ag | Doppelkupplungs-Windungsgetriebe |
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2014
- 2014-03-06 DE DE102014204061.2A patent/DE102014204061B4/de active Active
-
2015
- 2015-02-16 WO PCT/EP2015/053170 patent/WO2015132066A1/fr active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0177286A2 (fr) * | 1984-09-27 | 1986-04-09 | Toyota Jidosha Kabushiki Kaisha | Transmission de puissance pour véhicules à quatre roues motrices |
US5598747A (en) * | 1995-05-04 | 1997-02-04 | Dana Corporation | Thermal compensating bearing support structure for transmission case |
DE10253416A1 (de) * | 2002-11-08 | 2004-05-27 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Stufengetriebe für ein Kraftfahrzeug |
WO2005008098A1 (fr) * | 2003-07-16 | 2005-01-27 | Daimlerchrysler Ag | Embrayage double |
DE102007003675A1 (de) * | 2007-01-25 | 2008-07-31 | Schaeffler Kg | Stirnraddifferenzial mit einem Planetentrieb |
US20100099526A1 (en) * | 2008-10-20 | 2010-04-22 | Aisin Aw Co., Ltd. | Belt type continuously variable transmission |
DE102011010204A1 (de) * | 2011-02-03 | 2012-08-09 | Daimler Ag | Antriebsstrang für ein Kraftfahrzeug |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015223064A1 (de) * | 2015-11-23 | 2017-05-24 | Zf Friedrichshafen Ag | Wälzlager, Getriebe sowie Kraftfahrzeug |
WO2021099035A1 (fr) * | 2019-11-20 | 2021-05-27 | Robert Bosch Gmbh | Accouplement d'arbres entre un arbre de rotor d'une machine électrique et un arbre d'entrée d'une boîte de vitesses |
Also Published As
Publication number | Publication date |
---|---|
DE102014204061A1 (de) | 2015-09-10 |
DE102014204061B4 (de) | 2020-07-09 |
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