WO2010130598A1 - Betätigungssystem für eine kupplung - Google Patents
Betätigungssystem für eine kupplung Download PDFInfo
- Publication number
- WO2010130598A1 WO2010130598A1 PCT/EP2010/055994 EP2010055994W WO2010130598A1 WO 2010130598 A1 WO2010130598 A1 WO 2010130598A1 EP 2010055994 W EP2010055994 W EP 2010055994W WO 2010130598 A1 WO2010130598 A1 WO 2010130598A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- contact surface
- clutch
- release bearing
- clutch release
- actuating element
- 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
- F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
- F16D23/14—Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
- F16D23/14—Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or bearings
- F16D2023/141—Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or bearings characterised by using a fork; Details of forks
Definitions
- the invention relates to an actuating system for a clutch.
- the actuation system according to the invention is used in motor vehicles.
- the actuating system comprises an actuating element, which is pivotable about an axis aligned in the Z-coordinate direction for actuating the clutch.
- the actuating element cooperates with a clutch release bearing, for which purpose the actuating element has a first contact surface and the clutch release bearing has a second contact surface.
- the clutch release bearing is slidably aligned along a shaft in the X coordinate direction.
- Such actuation systems are used in transmissions of motor vehicles, in particular to enable the actuation of a friction clutch in the drive train of a motor vehicle.
- either the actuating element or the clutch release bearing is designed such that one of the two elements has formed a flat profile as a contact surface.
- the contact surface of the clutch release bearing is formed flat
- the contact surface of the actuating element is curved.
- the curved contact surface is formed by a simple radius.
- the disadvantage of this design is that there is a lot of wear around the contact surfaces.
- the German patent DE 195 35 722 C2 discloses an actuating device for a friction clutch of a motor vehicle.
- the pivotable release lever which cooperates with the axially movable release bearing, has formed a curved contact surface.
- the contact surface of the release bearing is flat.
- German Offenlegungsschrift DE 22 54 081 discloses a friction clutch.
- the actuating lever has a flat rolling surface, since the rolling surface is formed curved on the release bearing.
- German laid-open specification DE 19 731 612 A1 discloses an actuating system for friction clutches.
- an axially displaceable release bearing is arranged in the gear housing.
- a releaser is connected, which cooperates with a corresponding release lever.
- the release lever is mounted at its end in the transmission housing and contacted with its central region the releaser. In this case, the contact surface is crowned on one component and straight on the other component.
- European Patent EP 06 373 62 B1 discloses a pressure actuable clutch mechanism for motor vehicles.
- the lever is actuated by pressure from a release element.
- the contact surface of the release bearing is straight and the contact surface of the release fork for this purpose is formed correspondingly spherical.
- German Offenlegungsschrift 24 26 758 discloses a friction clutch for motor vehicles.
- a release fork is pivotally mounted on a fixed axis in the clutch housing. Through the release fork, an axially displaceable release bearing is actuated. In the contact area between the release fork and the release bearing rolling elements are freely rotatably arranged.
- British Patent 15 88 081 also discloses a clutch release mechanism.
- rolling elements are also arranged between the actuating lever and the release bearing to reduce the friction between the two components.
- US Pat. No. 4,997,075 also discloses a clutch release bearing and a retaining mechanism therefor.
- the contact surface between the release lever and the release bearing can be formed by a molding.
- the shape is also formed spherical.
- German Offenlegungsschrift DE 198 27 365 A1 discloses a clutch release lever with rollers.
- a clutch release mechanism for heavy duty applications includes a clutch release sleeve, a clutch release bearing, and a forked clutch release lever.
- the Kupplungsaus Weghülse is provided at one end with means with which it is engaged with a He-.
- the clutch release bearing engages a second end of the clutch release sleeve and has an inner race which is non-rotatably connected to a second end of the Kupplungsaus Weghülse.
- On each of the two arms of the forked clutch release lever rollers are arranged, which are to be brought into engagement with an outer race of the clutch release bearing.
- European Patent Application EP 0474 546 A1 also discloses a clutch release bearing.
- the clutch release lever is formed spherically and cooperates with a correspondingly identical shaped complete formation of the clutch release bearing.
- the invention has for its object to provide an actuating system for a clutch mechanism, wherein the contact surfaces between the actuating element and the clutch release bearing are designed such that the slip and the friction between the components is minimized.
- An actuation system for a clutch finds particular application in motor vehicles.
- the actuating system has an actuating element, which is pivotable about an axis oriented in the Z-coordinate direction for actuating the clutch.
- the actuating element cooperates with a clutch release bearing, for which purpose the actuating element is a first Contact surface and the clutch release bearing have formed a second contact surface.
- the clutch release bearing is slidably disposed along a shaft, the shaft itself is aligned in the X coordinate direction.
- the first contact surface and the second contact surface are formed such that upon actuation of the coupling, a contact point between the first contact surface and the second contact surface along a line aligned in the Y coordinate direction is movable.
- the contact point formed by the contact of the first contact surface and the second contact surface has a same instantaneous speed on both contact surfaces when the clutch is actuated.
- the actuating element is designed as a lever.
- the lever is pivotally mounted at a first free end about the axis.
- At a second free end of the lever an attack position for an operation is formed.
- the contact surface is disposed on the lever between the first free end and the second free end.
- the actuating element is designed as a fork.
- the fork has two mounted on an actuating shaft leg, which are thus pivotable about the axis.
- Each of the free ends of the legs carries the first contact surface, which is engageable with the second contact surface of the release bearing.
- the first contact surface of the actuating element is formed spirally.
- the contact surface has a circumferential length which corresponds to a movement length of the contact point between the first contact surface and the second contact surface when it moves along the height of the clutch release bearing upon actuation of the clutch.
- the second contact surface on the clutch release bearing is concave.
- the actuating element and a housing for the clutch release bearing which usually also carries the second contact surface, may be made of metal or be made of a polymer. It is also possible to optionally produce the actuator or the housing of the clutch release bearing made of metal or polymer.
- Figure 1 shows the actuating element according to the invention, which is designed in this embodiment as a lever.
- Figure 2 shows a side view of a leg of the actuating element, wherein the actuating element is formed in this embodiment as a fork.
- Figure 3 shows a perspective view of the embodiment of the actuating element, which is designed as a fork.
- Figure 4 shows a side view of the clutch release bearing with the on
- Figure 5 shows the assembled unit of actuator, which is here a lever and the release bearing.
- Figure 6a shows the actuator according to the invention and its orientation with respect to the Cartesian coordinate system.
- Figure 6b shows the clutch release bearing with respect to the actuator of Figure 6a.
- Figure 7 shows schematically the course of the contact point P during the
- FIG. 8 shows the actuating element according to the invention and the shape of the first contact surface.
- FIG. 9 shows the association of the points of contact between the first
- Figure 10 shows a schematic view of the housing of the clutch release bearing, wherein here the difference between the clutch release bearing of the prior art and the invention is shown.
- the actuating element 2 is designed as a lever 14 in the embodiment shown here.
- the lever 14 has a first free end 15 and a second free end 16.
- an axis 4 is arranged, about which the lever 14 is pivotable.
- an engagement position 17 is formed on which an actuating element can engage, via which the lever 14 can execute the pivoting movement about the axis 4.
- the first contact surface 10 is formed. This first contact surface 10 occurs upon actuation of the lever 14 with a second contact surface 20 in contact, which is formed on the clutch release bearing 6.
- Figure 2 shows a side view of a leg 24 of the actuating element 2.
- the actuating element 2 is in the form of a fork 22 is formed.
- the fork 22 consists of two legs
- the fork 22 is formed pivotable about the axis 4.
- each of the legs 24 has a free end 25.
- the first contact surface 10 is formed in the area of the free end 25 of each leg 24, the first contact surface 10 is formed.
- the first contact surface 10 comes into contact with a correspondingly second contact surface 20 formed on the clutch release bearing 6, in order thus to actuate the clutch release bearing 6.
- the clutch release bearing 6 is arranged axially displaceably on a shaft 7.
- the clutch release bearing 6 may have a housing 30.
- the clutch release bearing 6 or the housing 30 have formed the second contact surface 20, which cooperates with the first contact surface 10 of the actuating element 2.
- FIG. 5 shows the actuating element, which in the embodiment illustrated here is designed as a lever 14 in interaction with the clutch release bearing 6.
- the clutch release bearing 6 is arranged axially displaceable on the shaft 7.
- the actuating element 2 is likewise arranged such that the first contact surface likewise lies in the region of the shaft 7.
- the first contact surface and the second contact surface 20 cooperate in such a way that a displacement of the clutch release bearing 6 in the axial direction is effected.
- Figures 6a and 6b show the interaction of the actuating element 2 with the clutch release bearing 6.
- the actuating element 2 pivots about the axis 4.
- the axis 4 is aligned in the Z coordinate direction.
- the actuating element 2 is arranged substantially along a line 12 in the Y-coordinate direction.
- the first contact surface of the actuating element 2 thus interacts with the second contact surface of the clutch release bearing 6.
- the clutch release bearing 6 is moved in the direction of the shaft 7.
- the shaft 7 is aligned along the X coordinate direction.
- the actuation of the actuating element 2 can be effected by the actuation of the clutch pedal. the.
- the pivoting movement of the actuating element 2 is transmitted by the clutch release bearing 6 in a linear movement in the direction of the X coordinate direction. This is possible because the clutch release bearing 6 is guided on the shaft 7.
- the clutch release bearing 6 always has a speed which is parallel to the X coordinate direction.
- the actuator performs a circular motion such that the velocity of each point of the actuator is perpendicular to the radius of rotation.
- the actuator 2 also has a speed which is parallel to the X-coordinate direction.
- the radius of rotation of these points must be perpendicular to the X coordinate direction, so that the points always lie on a line 12 in the Y coordinate direction.
- the contact surface 10 of the actuating element 2 is formed as a spiral.
- the point P ⁇ ( ⁇ ) describes the point of contact between the first contact surface 10 of the actuator 2 and the second contact surface 20 of the clutch release bearing 6 when the actuator 2 is pivoted by a certain angle ⁇ .
- the point P ⁇ ( ⁇ ) lies on the line 12, which is aligned in the Y coordinate direction.
- the point P ⁇ + ⁇ ( ⁇ + ⁇ ) comes to lie on the line 12 which is aligned in the Y coordinate direction.
- FIG. 8 shows the actuating element 2 in the form of the lever 14, in which the spiral shape of the first contact surface 10 is shown.
- the actuating element 2 is pivotable about the axis 4, wherein the axis 4 is aligned in the Z-coordinate direction.
- FIG. 9 shows a schematic representation of the interaction of the first contact surface 10 with the second contact surface 20 of the clutch release bearing 6.
- H is the height which is available for the contact between the first contact surface 10 and the second contact surface 20 on the clutch release bearing.
- the first contact surface 10 has a helical contour 16 which, upon actuation of the actuating element, comes into contact with the second contact surface 20 of the clutch release bearing 6 in a corresponding manner.
- the point P 1 moves during the actuation of the actuating element 2 along the second contact surface 20 and remains constantly on the line 12, which is aligned along the Y-coordinate direction.
- the clutch release bearing 6 By operating the actuating element 2, the clutch release bearing 6 is displaced by the length L in the X coordinate direction. This ultimately causes disengagement of the clutch.
- the helical shape 16 of the first contact surface 10 may be described by a growth rate of the radius.
- the outer parameters which influence the helical shape 16 of the first contact surface 10 is the second contact surface 20 which is formed on the clutch release bearing 6.
- the circumferential length which the contact point P 1 travels between the first contact surface 10 and the second contact surface 20 must be the same on both contact surfaces 10 and 20.
- the center of the spiral 16 lies at the point P 0 , which coincides with the fulcrum about the Z coordinate axis.
- the first contact point P 1 of the first contact surface 10 with the second contact surface 20 lies on the line 12, which is aligned along the Y coordinate direction.
- the distance D of the center P 0 of the spiral contact surface 16 and the center of the shaft 7, on which the clutch release bearing 6 is displaced, is denoted by D.
- the interaction of the first contact surface 10 according to the invention and the second contact surface 20 according to the invention makes it possible that no slip occurs between the actuating element 2 and the clutch release bearing 6.
- the last contact point P 2 is likewise located on the line 12 along the Y-coordinate axis.
- FIG. 10 shows the clutch release bearing 6, wherein the second contact surface 20 according to the invention is shown. In comparison, the
- the second contact surface according to the invention che 20 is concave.
- the extent of the concave configuration of the second contact surface 20 depends on the contact point between the first contact surface 10 and the second contact surface 20 extending along a line 12 which is aligned in the Y coordinate direction.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112010001960T DE112010001960A5 (de) | 2009-05-09 | 2010-05-04 | Betätigungssystem für eine Kupplung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009020579.9 | 2009-05-09 | ||
DE102009020579A DE102009020579A1 (de) | 2009-05-09 | 2009-05-09 | Betätigunssystem für eine Kupplung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010130598A1 true WO2010130598A1 (de) | 2010-11-18 |
Family
ID=42308369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/055994 WO2010130598A1 (de) | 2009-05-09 | 2010-05-04 | Betätigungssystem für eine kupplung |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102009020579A1 (de) |
WO (1) | WO2010130598A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106481684A (zh) * | 2015-08-27 | 2017-03-08 | 舍弗勒技术股份两合公司 | 操纵装置和带有操纵装置的离合器系统 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013223042A1 (de) | 2013-11-13 | 2015-05-13 | Schaeffler Technologies Gmbh & Co. Kg | Ausrückvorrichtung |
DE102014210349A1 (de) | 2014-06-02 | 2015-12-03 | Schaeffler Technologies AG & Co. KG | Betätigungseinrichtung |
DE102014220638A1 (de) | 2014-10-13 | 2016-04-14 | Schaeffler Technologies AG & Co. KG | Ausrücksystem |
DE102015213209A1 (de) | 2015-07-15 | 2017-01-19 | Schaeffler Technologies AG & Co. KG | System bestehend aus einer Ausrückvorrichtung und einem Kupplungsgehäuse |
DE102016209268A1 (de) | 2016-05-30 | 2017-11-30 | Schaeffler Technologies AG & Co. KG | Hebelausrücksystem |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4025213A1 (de) * | 1990-08-09 | 1992-02-13 | Getrag Getriebe Zahnrad | Betaetigungsvorrichtung fuer eine trennkupplung |
EP0474546A1 (de) * | 1990-09-07 | 1992-03-11 | Skf France | Kupplungsausrücklager |
GB2327732A (en) * | 1997-07-23 | 1999-02-03 | Mannesmann Sachs Ag | Clutch release bearing actuating mechanism |
EP1703161A1 (de) * | 2005-03-17 | 2006-09-20 | Zf Friedrichshafen Ag | Ausrückeinrichtung für eine Kraftfahrzeugkupplung |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2254081A1 (de) | 1972-11-04 | 1974-05-16 | Luk Lamellen & Kupplungsbau | Reibungskupplung |
DE2426758A1 (de) | 1974-06-01 | 1975-12-11 | Skf Kugellagerfabriken Gmbh | Reibungskupplung |
JPS53105647A (en) | 1977-02-25 | 1978-09-13 | Skf Kugellagerfabriken Gmbh | Clutchhreleasing device |
US4997075A (en) | 1988-06-22 | 1991-03-05 | Mazda Motor Corporation | Clutch releasing bearing apparatus |
FR2699624B1 (fr) | 1992-12-17 | 1995-01-20 | Valeo | Mécanisme d'embrayage à diaphragme du type poussé, notamment pour véhicules automobiles. |
DE19535722C2 (de) | 1995-09-26 | 2002-08-14 | Opel Adam Ag | Betätigungsvorrichtung für eine Reibungskupplung eines Kraftfahrzeuges |
US5911296A (en) | 1997-07-01 | 1999-06-15 | Eaton Corporation | Clutch with roller fork |
-
2009
- 2009-05-09 DE DE102009020579A patent/DE102009020579A1/de not_active Withdrawn
-
2010
- 2010-05-04 DE DE112010001960T patent/DE112010001960A5/de not_active Withdrawn
- 2010-05-04 WO PCT/EP2010/055994 patent/WO2010130598A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4025213A1 (de) * | 1990-08-09 | 1992-02-13 | Getrag Getriebe Zahnrad | Betaetigungsvorrichtung fuer eine trennkupplung |
EP0474546A1 (de) * | 1990-09-07 | 1992-03-11 | Skf France | Kupplungsausrücklager |
GB2327732A (en) * | 1997-07-23 | 1999-02-03 | Mannesmann Sachs Ag | Clutch release bearing actuating mechanism |
EP1703161A1 (de) * | 2005-03-17 | 2006-09-20 | Zf Friedrichshafen Ag | Ausrückeinrichtung für eine Kraftfahrzeugkupplung |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106481684A (zh) * | 2015-08-27 | 2017-03-08 | 舍弗勒技术股份两合公司 | 操纵装置和带有操纵装置的离合器系统 |
CN106481684B (zh) * | 2015-08-27 | 2020-08-21 | 舍弗勒技术股份两合公司 | 操纵装置和带有操纵装置的离合器系统 |
Also Published As
Publication number | Publication date |
---|---|
DE102009020579A1 (de) | 2010-11-11 |
DE112010001960A5 (de) | 2012-08-09 |
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