WO2003056200A1 - Synchronization device for gearboxes, in particular motor vehicle gearboxes - Google Patents
Synchronization device for gearboxes, in particular motor vehicle gearboxes Download PDFInfo
- Publication number
- WO2003056200A1 WO2003056200A1 PCT/EP2002/013833 EP0213833W WO03056200A1 WO 2003056200 A1 WO2003056200 A1 WO 2003056200A1 EP 0213833 W EP0213833 W EP 0213833W WO 03056200 A1 WO03056200 A1 WO 03056200A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- brass
- welding
- synchronizing device
- ring
- friction surface
- Prior art date
Links
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/025—Synchro rings
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
- F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
- F16D2023/0681—Double cone synchromesh clutches
Definitions
- Synchronizing device for transmissions in particular motor vehicle transmissions
- Synchronizing device for transmissions in particular motor vehicle transmissions, with a clutch body which has a clutch disc and a conical ring with at least one friction surface, and with a synchronous outer ring with a counter friction surface, the clutch body and the synchronous outer ring being connected in a rotationally fixed manner to one of the components to be synchronized.
- the object of the invention is therefore to propose a synchronizing device in which the toothing area of the clutch body and the synchronous outer ring are made of a material of high strength and in which a, preferably different, material pairing is used in the area of the friction surfaces, which is as constant as possible Coefficient of friction guaranteed over the entire service life.
- the object of the invention is achieved in that the clutch disc is made of steel and the friction surface of the cone ring is made of brass.
- the synchronous outer ring is then advantageously made of steel.
- the friction surface with the conical ring and the conical ring with the clutch disc are rigidly connected to one another, so that a uniform component of high strength and high dimensional accuracy results.
- the cone ring can be made entirely of brass.
- the conical ring and the clutch disc can be connected to one another in various ways. On the one hand, it is possible to fasten the conical ring with the clutch disc to one another by means of a positive connection, whereby depending on the shape, an additional embossing offers increased hold and increased strength. However, it is also possible to weld the brass friction surface to the steel cone ring or the brass cone ring to the steel clutch disc.
- the clutch disc is produced by punching and / or stamping from a steel material that can be welded with brass. Stamping and / or embossing is a particularly favorable manufacturing option for disk-like bodies, and a high degree of dimensional accuracy is also achieved.
- a material for such steel e.g. 16Mn Cr 5 are used.
- the cone ring which is made entirely of brass, can be produced from a cast blank, a forged blank or from sheet brass by forming and / or by machining. In this way, an inexpensive manufacturing process also lends itself to the cone ring.
- a weldable brass alloy is used for the production of the friction surface or for the production of the complete cone ring, which preferably contains 50% to 70% copper.
- a good weldable copper alloy consists of 55% to 60% copper, 30% to 45% zinc, the rest lead, aluminum, manganese, iron and tin.
- Corresponding alloy designations are: CuZnAH; CuZn15; CuZn37; CuZn31 Si; CuZn39Pb1AI-C-GM.
- the current is fed in a point or along a seam via a roll.
- elevations are provided on the surfaces to be welded, over which the current then preferably flows, so that the welding begins at these points.
- Medium frequency resistance welding provides medium frequency systems with inverters that have an intermediate frequency of approximately 1000 Hertz.
- welds can be carried out not only by the aforementioned welding processes, but also by friction welding, with the welding energy being generated by friction, pressure, temperature and deformation during friction welding.
- Figure 1 shows a partial section through the ring-shaped
- Synchronizing device in which the components are shown on an enlarged scale.
- 1 denotes a clutch disc, which is shown only in its inner region. The outer area, in which the toothing is arranged, which in turn can be coupled to a counter toothing via a shift sleeve, is not visible.
- the clutch disc is also, not shown, connected to a gear, so that a flow of force between the gear, the clutch disc and the sliding sleeve can be established.
- the clutch disc is preferably made of steel, for example 16 Mn Cr 5.
- a cone ring which is made of a brass alloy, is firmly connected to the clutch disc 1. As is symbolized by the weld seams 3, the conical ring is welded to the clutch disc 1, whereby, apart from a normal weld seam, the welding methods described in the present patent application can be used.
- the synchronous outer ring 4 also has a toothing that can be brought into operative connection with the sliding sleeve.
- the synchronous outer ring 4 is also made of a steel material and has a counter-friction surface 7 assigned to the outer friction surface 4 of the conical ring 2.
- a synchronous inner ring is provided, which is designated 8.
- the synchronous inner ring 8 has on its outer circumference a friction surface 9 corresponding to the inner friction surface 5. Because the synchronous inner ring 8 with the outer synchronizer ring 6 is rotationally fixed is connected - projection 10 on the synchronous outer ring 6 and corresponding recess on the synchronous inner ring 8 - results in a double-cone synchronization device which provides an increased frictional effect.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR0207468-0A BR0207468A (en) | 2001-12-22 | 2002-12-06 | Gearbox synchronization device, particularly for car gearboxes |
AU2002358628A AU2002358628A1 (en) | 2001-12-22 | 2002-12-06 | Synchronization device for gearboxes, in particular motor vehicle gearboxes |
EP02792918A EP1456549A1 (en) | 2001-12-22 | 2002-12-06 | Synchronization device for gearboxes, in particular motor vehicle gearboxes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10163828.0 | 2001-12-22 | ||
DE2001163828 DE10163828A1 (en) | 2001-12-22 | 2001-12-22 | Synchronizing device for transmissions, in particular motor vehicle transmissions |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003056200A1 true WO2003056200A1 (en) | 2003-07-10 |
Family
ID=7710774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/013833 WO2003056200A1 (en) | 2001-12-22 | 2002-12-06 | Synchronization device for gearboxes, in particular motor vehicle gearboxes |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1456549A1 (en) |
AU (1) | AU2002358628A1 (en) |
BR (1) | BR0207468A (en) |
DE (1) | DE10163828A1 (en) |
WO (1) | WO2003056200A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008064968A1 (en) * | 2006-11-30 | 2008-06-05 | Schaeffler Kg | Clutch body with integrally formed cone |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10301015A1 (en) * | 2003-01-13 | 2004-07-22 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Unit from a component of a transmission and a clutch body |
AT502647B1 (en) * | 2004-01-15 | 2007-05-15 | Miba Sinter Austria Gmbh | SYNCHRONIZING RING FOR A GEAR CHANGE GEAR |
DE102005035941B3 (en) * | 2005-07-28 | 2007-04-19 | Diehl Metall Stiftung & Co.Kg | Synchronizer ring package |
DE102006057486A1 (en) * | 2006-12-06 | 2008-06-12 | Schaeffler Kg | Synchronous ring arrangement e.g. for manual gearbox, has synchronizing device for gearbox, with inner synchronous ring, synchronous ring and synchronous outer ring |
DE102007042800A1 (en) | 2007-09-07 | 2009-03-12 | Schaeffler Kg | Synchronization device e.g. double-cone synchronization device, for motor vehicle gearbox, has boreholes provided on inner and outer friction surfaces of cone ring, synchronizing inner and outer rings and synchronizing intermediate ring |
DE102012221716A1 (en) * | 2012-11-28 | 2014-05-28 | Schaeffler Technologies Gmbh & Co. Kg | Synchronizer of a motor vehicle gear change transmission |
DE102014212533A1 (en) | 2014-06-30 | 2015-12-31 | Schaeffler Technologies AG & Co. KG | Coupling body and method for its production |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4951798A (en) * | 1988-03-03 | 1990-08-28 | Sinterstahl Gesellschaft M.B.H. | Porous sintered metal and nonporous friction material for clutches |
EP0792715A1 (en) * | 1996-02-23 | 1997-09-03 | SINTERSTAHL Gesellschaft m.b.H. | Method for welding foils having a friction lining of sintered powder |
DE19853896A1 (en) * | 1998-11-23 | 2000-05-25 | Schaeffler Waelzlager Ohg | Synchronizer for gearbox has main synchronizer body on gear shaft, slide sleeve, gear wheel, friction body, outer synchronous ring with rim |
US6224822B1 (en) * | 1999-06-12 | 2001-05-01 | Hyundai Motor Company | Synchronizer ring and manufacturing method thereof |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2947640B2 (en) * | 1991-06-21 | 1999-09-13 | 日本ピストンリング株式会社 | Synchronizer ring |
DE19853894B4 (en) * | 1998-11-23 | 2007-06-21 | Schaeffler Kg | Multi-part synchronizer ring |
-
2001
- 2001-12-22 DE DE2001163828 patent/DE10163828A1/en not_active Withdrawn
-
2002
- 2002-12-06 WO PCT/EP2002/013833 patent/WO2003056200A1/en not_active Application Discontinuation
- 2002-12-06 EP EP02792918A patent/EP1456549A1/en not_active Withdrawn
- 2002-12-06 BR BR0207468-0A patent/BR0207468A/en not_active Application Discontinuation
- 2002-12-06 AU AU2002358628A patent/AU2002358628A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4951798A (en) * | 1988-03-03 | 1990-08-28 | Sinterstahl Gesellschaft M.B.H. | Porous sintered metal and nonporous friction material for clutches |
EP0792715A1 (en) * | 1996-02-23 | 1997-09-03 | SINTERSTAHL Gesellschaft m.b.H. | Method for welding foils having a friction lining of sintered powder |
DE19853896A1 (en) * | 1998-11-23 | 2000-05-25 | Schaeffler Waelzlager Ohg | Synchronizer for gearbox has main synchronizer body on gear shaft, slide sleeve, gear wheel, friction body, outer synchronous ring with rim |
US6224822B1 (en) * | 1999-06-12 | 2001-05-01 | Hyundai Motor Company | Synchronizer ring and manufacturing method thereof |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008064968A1 (en) * | 2006-11-30 | 2008-06-05 | Schaeffler Kg | Clutch body with integrally formed cone |
Also Published As
Publication number | Publication date |
---|---|
AU2002358628A1 (en) | 2003-07-15 |
DE10163828A1 (en) | 2003-07-03 |
EP1456549A1 (en) | 2004-09-15 |
BR0207468A (en) | 2004-08-10 |
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