WO2003014586A1 - Sleeve carrier for shifting a toothed wheel in a gear box - Google Patents
Sleeve carrier for shifting a toothed wheel in a gear box Download PDFInfo
- Publication number
- WO2003014586A1 WO2003014586A1 PCT/EP2002/008316 EP0208316W WO03014586A1 WO 2003014586 A1 WO2003014586 A1 WO 2003014586A1 EP 0208316 W EP0208316 W EP 0208316W WO 03014586 A1 WO03014586 A1 WO 03014586A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sleeve
- sleeve carrier
- hub
- guide
- carrier
- 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
- F16D23/04—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
-
- 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
- F16D2023/0618—Details of blocking mechanism comprising a helical spring loaded element, e.g. ball
-
- 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
- the invention relates to a sleeve carrier with a sleeve guide for a shift sleeve which is displaceable at least to a limited extent along an axis of rotation of the sleeve carrier and which is provided for shifting at least one gear wheel in a manual transmission on the sleeve carrier.
- Such a sleeve carrier is described in DE 198 32 729 A1.
- This light-weight sleeve carrier is made in two parts from sheet metal.
- the sheet is relatively thin-walled.
- the sleeve carrier is therefore of relatively low weight.
- Forming technologies such as drawing and pressing are used in the manufacture of such a sleeve carrier.
- the production costs for sleeve supports of the type are relatively low due to the application of these technologies and the low material requirement, especially in large series and mass production.
- the sleeve supports of the generic type usually sit on a gear shaft in a manual transmission. They are often arranged between two gear wheels to be switched by a shift sleeve.
- the gear wheels are rotatably mounted, preferably on the same gear shaft.
- the sleeve carrier ger and the gear shaft have the same axis of rotation.
- the shift sleeve sits on the sleeve carrier.
- the sleeve carrier has a sleeve guide for this.
- the sleeve guide is usually provided with a toothing or a wedge profile, the teeth or wedges of which are aligned along the axis of rotation of the sleeve carrier and thus along the axis of rotation.
- the gearshift sleeve engages in this toothing on the sleeve carrier with an inwardly directed counter-toothing and is thus arranged on the sleeve carrier in a rotationally fixed but displaceable manner along the axis of rotation.
- the gearshift sleeve can be shifted in one or the other direction on the sleeve carrier to shift a gear.
- the sleeve carrier sits on the gear shaft in a rotationally fixed manner.
- the gear is shifted when a clutch toothing of the shift sleeve engages in a counter-toothing that is rotationally fixedly assigned to the selected gear wheel.
- the shift sleeve is connected to the gear wheel and to the sleeve carrier. A detachable, rotation-proof connection between the gear wheel and the gear shaft is established.
- the synchronizing device consists of one or more synchronizing rings provided with friction surfaces and counter-friction surfaces to the friction surfaces of the synchronizing rings. At least one synchronizer ring is assigned to the sleeve carrier in a rotationally fixed manner. This synchronizing ring then usually engages with catch tabs or the like in the sleeve carrier or rests against the sleeve carrier in a rotationally fixed manner on correspondingly designed projections.
- the counter friction surface is assigned to the gear wheel in a rotationally fixed manner and can, for. B. on a further synchronizer ring or on a rotationally coupled coupling body with the gear wheel.
- the synchronizer ring on the sleeve body is displaced by means of thrust pieces of the sleeve carrier, which are shifted by means of the shift sleeve, along the axis of rotation onto the counter friction surface on the gear wheel. postponed.
- the effect of synchronization by means of several of the friction pairings described is often amplified and thus accelerated by using several synchronizing rings.
- a sleeve carrier In addition to carrying and guiding the shift sleeve for a rotationally fixed connection to the gear wheel, a sleeve carrier thus has further functions, such as receiving and guiding for the pressure pieces and forming a rotationally fixed stop or such a guide for one or more synchronizing rings.
- the recesses, stops and receptacles on the sleeve carrier required for this purpose can often only be introduced with relatively great effort during manufacture on sleeve carriers of the generic type.
- the object of the invention is therefore to provide a sleeve carrier of a light design which, while maintaining a low weight and low manufacturing costs, can be produced with little effort, even in the most complicated embodiments of its shape.
- the sleeve carrier is formed by at least one light metal-sheet composite part.
- the most complicated shapes can be created by e.g. B. realize appropriate design of the molds and sliders on the molding or injection molds for the light metal body of the sleeve carrier.
- the sheet metal parts are manufactured inexpensively, preferably by stamping, drawing or embossing, preferably from sheet steel.
- Light metal means all light metals but also light alloys. This is how the use of aluminum and magnesium and their alloys is planned.
- the preferred method for producing the light metal portion of the composite parts is the die-casting method.
- die-cast parts are highly mechanized and can save costs be automated. Both the cold chamber die casting process and the hot chamber die casting process must be used.
- the die-cast aluminum alloys used are e.g. B. GD-AISi9Cu3, GD-AISM2, GD-AISi12 (Cu) and GD-AISi10Mg.
- the use of the alloy AIMg5Si2Mn is also conceivable.
- magnesium die-casting alloys are also planned. Magnesium alloy parts are light in weight and have favorable mechanical properties. They are very precise and are often used in vehicle construction. They have good damping properties. The main advantage of magnesium alloys is their lower weight compared to steel and also compared to aluminum. Magnesium castings can be manufactured using the investment casting or die casting process. Alloys such as GD-MgAI9Zn1, GD-MgAI8Zn1 and GD-MgAI6Zn are used. As high strength alloys such. B. MgAg2Si2 or MgSi2Ag1, 5 used. The use of McMgAI9Zn1 (A) is also envisaged.
- the contours of the sleeve carrier e.g. B. for the start of the synchronizer rings on the sleeve carrier and the teeth on the sleeve guide or on the hub for the seat of the sleeve carrier on the gear shaft, can be easily adapted to the requirements made by the surrounding construction.
- the proportion of light metal or the alloy used for the sleeve carrier as well as the distribution and arrangement of the light metal sheet sections on the sleeve carrier is adapted to the requirements of the respective application.
- An embodiment of the invention provides that the sleeve carrier is provided with a hub, a sleeve guide and a web-like section of the sleeve body between the sleeve guide and the hub. The web-like connection is through to the hub and the sleeve guide z.
- B. molded light metal The invention is further developed with an annular section made of a light metal alloy between the sleeve guide and the hub. The annular section comprises the hub in the circumferential direction of the sleeve carrier.
- corresponding projections and depressions are formed on the hub, the web / section and / or the sleeve carrier.
- the projections and depressions on the elements mentioned are preferably arranged in an alternating sequence in the circumferential direction in order to form a positive connection. It then always grips in alternating order a projection on one element, for. B. on the web, in a recess on the other element, for. B. on the sleeve guide.
- the fit of the parts to one another can thus bear greater loads in the direction of rotation due to the interlocking contours of the elements. With such a light metal-sheet composite, the transmissible torques on the sleeve carrier are higher.
- the sleeve carrier consists of a hub made of sheet metal for the seat on the shaft, of a
- Sleeve guide made of sheet metal with a toothing and a web made of sheet metal for connecting the sleeve guide to the hub is formed.
- the web or the other elements of the sleeve carrier mentioned are at least partially provided on one side or on both sides with at least one stop made of light metal on at least one side for a synchronizer ring or are completely encased.
- this sleeve carrier is formed from two cup-shaped sheet metal parts joined together at the bottom with a hole. The radially outside and inside
- the edges of the sheet metal parts are each toothed.
- the adjacent floors of the parts formed from sheet metal form the web of the sleeve carrier.
- light metal is connected laterally on the outside at least in sections.
- the receptacles or stops for z. B. synchronizer rings are provided.
- the sleeve carrier according to the invention is arranged in a clutch between two of the gear wheels.
- the sleeve carrier is used in a clutch, which is customary in vehicle transmissions and has already been described, with one synchronizing device per gear wheel.
- the sleeve guide preferably has a toothing formed from sheet metal. As already mentioned at the beginning, the use of sheet metal parts is inexpensive, especially in large series and mass production.
- the sleeve guide is formed from a sheet metal strip provided with the teeth.
- the toothing is introduced into the flat sheet metal strip in its initial state by rolling and stamping.
- the sheet metal strip is cut to the length that corresponds to the circumference of the sleeve guide on the neutral bending line of the circularly bent sheet metal strip.
- the metal strip is curved in a circle. Its ends are bent towards one another and are attached to one another, preferably attached to one another by welding.
- Another embodiment of a toothing or sleeve guide made of sheet metal provides that it is formed on a hollow cylindrical section or is formed by it.
- the teeth and other profiles of the sleeve guide are then introduced into a cylindrical workpiece by reshaping, preferably by cold rolling.
- FIG. 1 shows a partial view of a clutch for two gear wheels with a sleeve carrier according to the invention in section
- Figure 2 is a partial view of a sleeve carrier according to the invention.
- FIG. 3 shows a profiled sheet metal strip of a sleeve guide in its initial state
- FIG. 4 the sheet metal strip from FIG. 3 is circularly bent and welded to form a sleeve guide
- FIG. 5 shows a longitudinal section of the sleeve guide from FIG. 4 along the line V
- FIG. 6 shows a sleeve guide made of a hollow cylinder provided with teeth
- Figure 7 shows another embodiment of a sleeve carrier according to the invention in the main view
- FIG. 8 shows a longitudinal section through the sleeve carrier from FIG. 7 along the Vlll-Vlll.
- FIG. 1 shows a sleeve carrier 1 on a transmission shaft 2 in a manual transmission, not shown.
- the sleeve carrier 1 is arranged between a gear wheel 3 and a further gear wheel 4.
- the gear wheels 3, 4 are rotatably mounted on the gear shaft 2 as idler wheels by means of a bearing 5 or 6 in the unswitched state.
- the shift sleeve 7 engages with an inwardly directed counter toothing 7a in a toothing 8a of a sleeve guide 8 of the sleeve carrier 1 and is displaceable longitudinally to the axis of rotation 2a of the sleeve carrier 1 and the gear shaft 2 on the sleeve carrier 1 arranged.
- the sleeve carrier 1 also has a hub 9 and a web-shaped annular section 10 made of light metal.
- the section 10 is annular and includes the hub 9 in the direction of rotation.
- the sleeve guide 8 is firmly connected to the hub 9 via the section 10.
- several receptacles 10b are provided distributed over the circumference.
- a locking element 12 which is biased by a helical spring 11, is received in the receptacles 10b.
- the locking element 12 locks the shift sleeve 7 in its neutral position by engaging in a locking recess 7b on the shift sleeve.
- An outer synchronizer ring 13 and an inner synchronizer ring 15 are connected to the section 10 on each of its sides by positive locking.
- the synchronizer rings 13, 15 engage in lateral recesses 10c in section 10.
- the synchronizer rings 13, 15 thus bear against the section 10 in the direction of rotation.
- Each of the synchronizer rings 13, 15 has a friction surface 13a or 15a.
- the intermediate ring 14 is coupled to the gearwheel 3 and 4 in a rotationally fixed manner.
- the gear wheels 3 and 4 each have counter teeth 3a and 4a for the engagement of the shift sleeve 7.
- FIG. 2 shows an embodiment of a sleeve carrier in a partial view and in section.
- the sleeve support 16 is a light metal-sheet composite part and is formed by a sleeve guide 17, a web-like section made of light metal 18 and a hub 19.
- the sleeve guide 17 has a toothing 17a for guiding a shift sleeve, not shown.
- the hub 19 is provided with an internal toothing 19a for a rotationally fixed seat on a shaft, not shown.
- a disk-shaped reinforcement 20 formed from sheet metal is enclosed in the section 18.
- the section 18 has projections 18a and recesses 18b for engaging or engaging synchronizer rings, not shown.
- the section 18 is also provided with projections 18c and 18d.
- FIG. 3 shows a sheet metal strip 21 of a sleeve guide 22 shown in FIG. 4.
- the sheet metal strip 21 is shown stretched in its initial state and has a tooth profile for teeth 21a and recesses 21b.
- the teeth 21a and the recess 21b are introduced into the sheet metal strip 21 by rolling. As shown in FIGS.
- the sheet metal strip 21 is bent in a ring shape and the mutually bent ends 21c of the sheet metal strip 21 are fastened to one another.
- the recesses 21 b are filled on a finished sleeve carrier by projections made of light metal of a web of the sleeve carrier.
- the sections of the sheet metal strip 21 lying between the depressions 21 b thus form projections 21 d which engage on a finished sleeve carrier in corresponding depressions in the web of the sleeve carrier and form a connection there with the light metal of the web.
- FIG. 6 shows an exemplary embodiment of a sleeve guide 23 which is formed by a hollow cylinder provided with a toothing 23a.
- the sleeve guide 23 has depressions 23b and projections 23c on its inside in alternating order.
- the depressions 23b are provided for the engagement of projections made of light metal of a hub, not shown, and the projections 23c engage in corresponding depressions on this hub.
- FIGS. 7 and 8 show a further exemplary embodiment of a sleeve carrier.
- the sleeve carrier 24 has a hub 25 made of sheet metal for the seat on a gear shaft, not shown, and is provided with a sleeve guide 26 made of sheet metal and with a web 27 made of sheet metal.
- Half of the hub 25, the sleeve guide 26 and the web 27 are each formed by a cup-shaped sheet metal part 24a, 24b.
- the sheet metal part 24a, 24b is provided at its bottom with a passage which forms half of the hub 25.
- the edge of the sheet metal part 24a, 24b forms half of the sleeve guide 26 with a toothing 26a.
- the sheet metal parts 24a and 24b of the sleeve carrier are connected to one another on the base side at the parting plane of the sleeve carrier 24.
- Receptacles 24c for a pressure piece 28 are provided in the sleeve carrier 24.
- the pressure piece 28 has one with one Coil spring 29 preloaded ball 30 as a locking element.
- the web 27 is connected on both sides to sections 31 made of light metal.
- the sections 31 are annular and encompass the hub 25. They have recesses 31 a and stop surfaces 31 b for other functional elements, such as. B. synchronizer rings.
- Each half of the sleeve carrier 24 is a light metal-sheet composite part.
- Gearshift sleeve 20 Reinforcement a Counter serration 21 Sheet metal strip b Locking recess 21a serration
- Sleeve guide 21b recess a toothing 21 c end
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02772104A EP1412649A1 (en) | 2001-08-04 | 2002-07-26 | Sleeve carrier for shifting a toothed wheel in a gear box |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10138357A DE10138357B4 (en) | 2001-08-04 | 2001-08-04 | Sleeve carrier of a clutch for shifting a gear wheel in a manual transmission |
DE10138357.6 | 2001-08-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003014586A1 true WO2003014586A1 (en) | 2003-02-20 |
Family
ID=7694421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/008316 WO2003014586A1 (en) | 2001-08-04 | 2002-07-26 | Sleeve carrier for shifting a toothed wheel in a gear box |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1412649A1 (en) |
DE (1) | DE10138357B4 (en) |
WO (1) | WO2003014586A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005005693A1 (en) * | 2005-02-08 | 2006-08-17 | Fzgmbh | switching device |
DE102006042216A1 (en) * | 2006-09-08 | 2008-03-27 | Schaeffler Kg | synchronizer |
DE102013113071B4 (en) | 2013-11-26 | 2023-06-15 | Hoerbiger Antriebstechnik Holding Gmbh | Synchronizing hub for a synchronizing unit of a manual transmission and synchronizing unit with such a synchronizing hub |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4013153A (en) * | 1974-09-06 | 1977-03-22 | Toyota Jidosha Kogyo Kabushiki Kaisha | Clutch hub for transmission |
US4679681A (en) * | 1984-04-05 | 1987-07-14 | Kolbenschmidt Ag | Synchronizing ring and process of manufacturing the same |
DE19719618A1 (en) * | 1997-05-09 | 1998-11-12 | Schaeffler Waelzlager Ohg | Synchronous ring for synchroniser for cog wheel alternating gear of vehicle |
DE19832729A1 (en) * | 1998-07-21 | 2000-01-27 | Schaeffler Waelzlager Ohg | Automotive manual gearbox synchromesh can be manufactured without machining in large quantities at low cost |
DE19912131A1 (en) * | 1999-03-18 | 2000-09-21 | Schaeffler Waelzlager Ohg | Automotive gear box synchromesh slip ring made from a combination of metal and plastic allowing variable incorporation of teeth |
DE10018094A1 (en) * | 2000-04-12 | 2001-10-25 | Schaeffler Waelzlager Ohg | Synchronizer sleeve has main body with selector fork guide, cogging, disc, thin sheet metal wedges fitting into grooves |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2965921B2 (en) * | 1996-12-12 | 1999-10-18 | 川崎重工業株式会社 | Clutch hub and vehicle transmission |
DE19942056A1 (en) * | 1999-09-03 | 2001-03-08 | Schaeffler Waelzlager Ohg | Synchronizer body from a molded part made of sheet metal |
-
2001
- 2001-08-04 DE DE10138357A patent/DE10138357B4/en not_active Expired - Fee Related
-
2002
- 2002-07-26 EP EP02772104A patent/EP1412649A1/en not_active Withdrawn
- 2002-07-26 WO PCT/EP2002/008316 patent/WO2003014586A1/en not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4013153A (en) * | 1974-09-06 | 1977-03-22 | Toyota Jidosha Kogyo Kabushiki Kaisha | Clutch hub for transmission |
US4679681A (en) * | 1984-04-05 | 1987-07-14 | Kolbenschmidt Ag | Synchronizing ring and process of manufacturing the same |
DE19719618A1 (en) * | 1997-05-09 | 1998-11-12 | Schaeffler Waelzlager Ohg | Synchronous ring for synchroniser for cog wheel alternating gear of vehicle |
DE19832729A1 (en) * | 1998-07-21 | 2000-01-27 | Schaeffler Waelzlager Ohg | Automotive manual gearbox synchromesh can be manufactured without machining in large quantities at low cost |
DE19912131A1 (en) * | 1999-03-18 | 2000-09-21 | Schaeffler Waelzlager Ohg | Automotive gear box synchromesh slip ring made from a combination of metal and plastic allowing variable incorporation of teeth |
DE10018094A1 (en) * | 2000-04-12 | 2001-10-25 | Schaeffler Waelzlager Ohg | Synchronizer sleeve has main body with selector fork guide, cogging, disc, thin sheet metal wedges fitting into grooves |
Also Published As
Publication number | Publication date |
---|---|
DE10138357B4 (en) | 2009-10-01 |
DE10138357A1 (en) | 2003-02-20 |
EP1412649A1 (en) | 2004-04-28 |
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