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WO2002057647A1 - Systeme d'embrayage central - Google Patents

Systeme d'embrayage central Download PDF

Info

Publication number
WO2002057647A1
WO2002057647A1 PCT/EP2002/000306 EP0200306W WO02057647A1 WO 2002057647 A1 WO2002057647 A1 WO 2002057647A1 EP 0200306 W EP0200306 W EP 0200306W WO 02057647 A1 WO02057647 A1 WO 02057647A1
Authority
WO
WIPO (PCT)
Prior art keywords
friction clutch
actuating device
clutch
actuating
piston
Prior art date
Application number
PCT/EP2002/000306
Other languages
German (de)
English (en)
Inventor
Josef Bader
Original Assignee
Zf Friedrichshafen Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2002057647A1 publication Critical patent/WO2002057647A1/fr

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
    • F16D25/00—Fluid-actuated clutches
    • F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
    • F16D25/083—Actuators therefor
    • 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
    • F16D25/00—Fluid-actuated clutches
    • F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
    • F16D25/087—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation the clutch being actuated by the fluid-actuated member via a diaphragm spring or an equivalent array of levers
    • 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
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/70—Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members
    • F16D13/71—Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members in which the clutching pressure is produced by springs only
    • 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
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/18—Sensors; Details or arrangements thereof

Definitions

  • the invention relates to an actuating device for a friction clutch arranged between a drive motor and a transmission in a vehicle according to the preamble of claim 1.
  • Detachable clutches are provided between a drive motor and a transmission of a vehicle to interrupt the torque transmission between these components, mainly friction clutches, which are designed as single-disc or multi-disc friction clutches.
  • friction clutches which are designed as single-disc or multi-disc friction clutches.
  • To open the clutch and thus interrupt the torque transmission it is known either to press a release bearing against the outside of the clutch against a diaphragm spring, which releases the pressure plate, which is under pretension of the diaphragm spring on the friction disk of the clutch, and thus releases the frictional engagement, or to act on the release bearing by a device arranged centrally on the input shaft and thus to release the frictional engagement in the same way.
  • the actuator for the release bearing is fixed to the transmission so that the actuator does not rotate with the clutch disc.
  • the actuating device here is to be understood as the components which, triggered by a pneumatic or hydraulic actuating fluid, press the release bearing against the diaphragm spring. Due to the stationary arrangement of the actuator, it is necessary that a bearing in the form of the release bearing between the Actuator and the rotating clutch disc is provided. The axial forces exerted by the actuating device act on the one hand on the transmission housing and on the other hand on the crankshaft of the engine.
  • the object of the present invention is to further optimize the coupling device and to reduce the effects of the forces.
  • an actuating device for a friction clutch arranged between a drive motor and a transmission in a vehicle in which the friction clutch comprises at least one clutch disc and a spring device with which the clutch disc is pressed against a flywheel.
  • the friction clutch is adjustable by an actuating means.
  • the actuating device is arranged on the friction clutch in such a way that it rotates with the clutch disc and the spring device around the input shaft of the transmission and the actuating means is fed from a non-rotating part on the transmission to the rotating actuating device.
  • a sleeve which guides the actuating means, extends from the rotating actuating device into a fixed area on the gear housing.
  • the spring device is adjustable by a piston which is arranged in an axially displaceable manner in a cylinder formed on the rotating clutch.
  • the piston in the cylinder is advantageously held in a stable rest position after being displaced by an auxiliary spring.
  • the auxiliary spring cooperates with the spring device on the clutch in such a way that the piston, pressed by the two springs in opposite directions, assumes its rest position after actuation.
  • Embodiment are axially displaceable parts of the actuating device with a displacement measuring device in operative connection, so that the opening or closing distance of the clutch can be detected.
  • Advantageous versions show the friction clutch as a pressed or as a pulled clutch.
  • Versions show pneumatic media, in particular air, or hydraulic media, in particular oil, as actuating means.
  • the actuating device is preferably used on an automated clutch.
  • Fig. 1 the actuator for a drawn clutch
  • Fig. 2 the actuator for a pressed clutch.
  • a friction clutch 6 is arranged in a clutch bell 2 of a vehicle transmission 4.
  • the clutch disc 8 with a helical spring 10 as a damping element and the pressure plate 12 are shown here.
  • the clutch disc 8 is rotatably connected to the input shaft 16 of the transmission 4.
  • the pressure plate 12 is held by a diaphragm spring 14 under constant pretension and thereby presses the clutch disc 8 against the flywheel, not shown here, which is permanently connected to a drive motor.
  • the membrane spring 14 is supported on the housing 18 of the friction clutch 6. A part of the housing 18 is formed by a cylinder 20, the cylinder walls of which are formed parallel to the input shaft 16.
  • a piston 22 is arranged sealingly within the cylinder 20 and can be displaced axially along the axis of rotation 24 of the clutch.
  • the axial freedom of movement of the piston 22 is limited on the one hand by the cylinder base 26 and on the other hand by a stop ring 28.
  • Rods 30 are connected to the piston 22, only one of which is shown here, but several of which are distributed over the circumference of the friction clutch 6.
  • the rod 30 is sealed in the housing 18 and axially movable along the axis 24.
  • the Rod 30 and the piston 22 are connected to one another via a stop ring 32 in such a way that the piston 22 and rod 30 take each other along in their axial movement.
  • the end of the rod 30 opposite the piston 22 interacts with the diaphragm spring 14.
  • Rod end shaped so that the linear movement of the rod 30 and the circular arc movement of the diaphragm spring 14 are matched.
  • a spiral spring 34 is arranged, which presses the piston 22 away from the cylinder base 26 and forces it into its rest position in the non-actuated state.
  • a cylinder wall 36 of the cylinder 20 has a passage 38, one end of which opens into the space between the cylinder base 26 and the piston 22.
  • the other end of the passage 38 in the cylinder wall 36 extends to a housing projection 40 of the transmission 4.
  • the end of the passage 38 opens between two seals 42 and 44 into a connecting line 46 in the housing of the transmission 4.
  • a slide shoe 48 of a displacement measuring device 50 is in contact with the piston 22, which is mounted stationary and fixed to the housing and slides along the piston 22.
  • a clutch control device (not shown here) actuates valves from a reservoir 52 through the connecting line 46 into the space between the cylinder base 26 and the piston 22.
  • the piston 22 is moved to the right in the plane of the drawing and also pulls the diaphragm spring 14 to the right via the rod 30, as a result of which the friction clutch 6 opens becomes.
  • the pressure of the actuating means is reduced and the diaphragm spring 14 pushes back into its starting position.
  • the piston 22 is again guided to the left via the rod 30. Due to the action of the spiral spring 34 in the direction to the right, the piston 22 and the rod 30 cannot move further to the left than they are pressed by the diaphragm spring 14, so that both retain the rest position of the diaphragm spring 14.
  • Fig. 2 shows a friction clutch 6 in a pressed version.
  • the same elements as in Fig. 1 are given the same reference numerals.
  • the friction clutch 6 is arranged in a clutch bell 2 of the vehicle transmission 4.
  • the clutch disc 8 with a coil spring 10 as a damping element and the pressure plate 12 are shown here.
  • the clutch disc 8 is rotatably connected to the input shaft 16 of the transmission 4.
  • the pressure plate 12 is held by a diaphragm spring 14 under constant pretension and thereby presses the clutch disc 8 against the flywheel, not shown here, which is permanently connected to a drive motor.
  • the membrane spring 14 is supported on the housing 18 of the friction clutch 6.
  • a part of the housing 18 is formed by a cylinder 20, the cylinder wall of which is formed parallel to the input shaft 16.
  • a piston 22 is arranged sealingly within the cylinder 20 and can be displaced axially along the axis of rotation 24 of the clutch. The axial freedom of movement of the piston 22 is limited on the one hand by the cylinder base 26 and on the other hand by a stop ring 28.
  • a projection 54 on the piston 22 interacts with the diaphragm spring 14.
  • the contour of the projection 54 is shaped such that the linear movement of the projection 54 and the movement of the diaphragm spring 14 running on a circular arc are matched to one another.
  • a spiral spring 34 is arranged, which presses the piston 22 away from the cylinder base 26 and forces it into its rest position in the non-actuated state.
  • a cylinder wall 36 of the cylinder 20 has a passage 38, one end of which opens into the space between the cylinder base 26 and the piston 22.
  • the other end of the passage 38 in the cylinder wall 36 extends to a housing projection 40 of the transmission 4.
  • There the end of the passage 38 opens between two seals 42 and 44 into a connecting line 46 in the housing of the transmission 4. Through this connecting line 46, the actuating means supplied to the actuator from a reservoir 52.
  • Rods 56 are connected to the piston 22, only one of which is shown here, but several of which are distributed over the circumference of the friction clutch 6 and jointly carry a slip ring 60.
  • the rod 56 is sealed in the housing 18 and axially movable along the axis 24.
  • Rod 56 and piston 22 are connected to one another via a stop ring 58 in such a way that piston 22 and rod 56 take each other along in their axial movement.
  • a slide shoe 48 of a displacement measuring device 50 is in contact, which is mounted stationary and fixed to the housing and slides along the slip ring 60.
  • a clutch control device (not shown here), which can also be integrated in the transmission control device, now actuates actuating means from a storage container 52 through the connection via valves. Cable 46 brought into the space between the cylinder base 26 and piston 22. As a result, the piston 22 is moved to the left in the plane of the drawing and also presses the diaphragm spring 14 to the left via the projection 54, as a result of which the friction clutch 6 is opened. To close the clutch, the pressure of the actuating means is reduced and the diaphragm spring 14 pushes back into its starting position. As a result, the piston 22 is guided to the right again via the projection 54. Due to the action of the spiral springs 34 in the direction to the right, the piston 22 cannot move further to the right than it is pressed by the diaphragm spring 14, and both assume their rest position again.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

L'invention concerne un dispositif d'actionnement pour un embrayage à friction (6) monté entre un moteur d'entraînement et une boîte de vitesses (4) dans un véhicule, qui comprend au moins un disque d'embrayage (8) et un dispositif à effet ressort (14), et peut être déplacé par un élément d'actionnement. Ledit dispositif d'actionnement tourne avec le disque d'embrayage (8) et le dispositif à effet ressort (14), et l'élément d'actionnement est acheminé par une pièce (40) non rotative sur la boîte de vitesses (4) jusqu'au dispositif d'actionnement en rotation.
PCT/EP2002/000306 2001-01-19 2002-01-15 Systeme d'embrayage central WO2002057647A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10102300A DE10102300A1 (de) 2001-01-19 2001-01-19 Zentrale Kupplungsvorrichtung
DE10102300.6 2001-01-19

Publications (1)

Publication Number Publication Date
WO2002057647A1 true WO2002057647A1 (fr) 2002-07-25

Family

ID=7671080

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/000306 WO2002057647A1 (fr) 2001-01-19 2002-01-15 Systeme d'embrayage central

Country Status (2)

Country Link
DE (1) DE10102300A1 (fr)
WO (1) WO2002057647A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010020206A1 (fr) * 2008-08-22 2010-02-25 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Dispositif d’actionnement pour double embrayage

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10222730A1 (de) * 2002-05-23 2003-12-11 Fte Automotive Gmbh Vorrichtung zum wahlweise Aus-bzw. Einrücken einer Reibkupplung für Kraftfahrzeuge
FR2851627B1 (fr) * 2003-02-20 2005-12-30 Valeo Embrayages Dispositif de transmission de couple pour vehicule automobile
DE10314960A1 (de) * 2003-04-02 2004-10-14 Zf Sachs Ag Betätigungseinrichtung
DE10347493B4 (de) * 2003-10-13 2015-07-30 Zf Friedrichshafen Ag Fahrzeuggetriebe
DE102004027117A1 (de) 2004-06-03 2005-12-22 Zf Friedrichshafen Ag Einrichtung zur Erfassung der Wegposition eines Kupplungskolbens zur Kupplungsbetätigung, der in einer rotierenden Kupplung angeordnet ist
DE102008027885A1 (de) 2008-06-11 2009-12-17 Schaeffler Kg Druckmittelbetätigte Kupplungseinrichtung
EP2626582A3 (fr) † 2008-08-22 2017-10-25 Schaeffler Technologies AG & Co. KG Embrayage double
DE102011078125A1 (de) * 2011-06-27 2012-12-27 Zf Friedrichshafen Ag Trennkupplung eines Hybridantriebsstrangs mit einem Zentralausrücker
DE102019113483B3 (de) * 2019-05-21 2020-10-15 Schaeffler Technologies AG & Co. KG Bauraumoptimierte Kupplung mit Drucktopfbetätigung und Hybridmodul mit bauraumoptimierter Kupplung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2096718A (en) * 1981-04-10 1982-10-20 Fichtel & Sachs Ag Friction disc clutch
GB2147668A (en) * 1983-10-08 1985-05-15 Automotive Products Plc A clutch actuator
JPS61130627A (ja) * 1984-11-29 1986-06-18 Hino Motors Ltd 油圧クラツチ
US4646894A (en) * 1983-07-14 1987-03-03 Kabushi Kaisha Daikin Seisakusho Pneumatic clutch apparatus
US4982824A (en) * 1987-03-30 1991-01-08 Kabushiki Kaisha Daikin Seisakusho Fluid clutch
JPH05263840A (ja) * 1991-03-11 1993-10-12 Hino Motors Ltd 油圧圧着式クラッチ及びその接続制御方法
US6035989A (en) * 1997-07-24 2000-03-14 Exedy Corporation Clutch-actuated piston structure
WO2000026555A1 (fr) * 1998-11-02 2000-05-11 Kongsberg Automotive Asa Embrayage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4324437A1 (de) * 1993-07-21 1995-01-26 Teves Gmbh Alfred Hydraulische Kupplungsbetätigungseinrichtung
DE19500540A1 (de) * 1995-01-11 1996-07-18 Schaeffler Waelzlager Kg Betätigungssystem für eine Kupplung
DE19738069C2 (de) * 1997-09-01 2001-04-05 Mannesmann Sachs Ag Reibungskupplung mit integrierter Betätigungseinrichtung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2096718A (en) * 1981-04-10 1982-10-20 Fichtel & Sachs Ag Friction disc clutch
US4646894A (en) * 1983-07-14 1987-03-03 Kabushi Kaisha Daikin Seisakusho Pneumatic clutch apparatus
GB2147668A (en) * 1983-10-08 1985-05-15 Automotive Products Plc A clutch actuator
JPS61130627A (ja) * 1984-11-29 1986-06-18 Hino Motors Ltd 油圧クラツチ
US4982824A (en) * 1987-03-30 1991-01-08 Kabushiki Kaisha Daikin Seisakusho Fluid clutch
JPH05263840A (ja) * 1991-03-11 1993-10-12 Hino Motors Ltd 油圧圧着式クラッチ及びその接続制御方法
US6035989A (en) * 1997-07-24 2000-03-14 Exedy Corporation Clutch-actuated piston structure
WO2000026555A1 (fr) * 1998-11-02 2000-05-11 Kongsberg Automotive Asa Embrayage

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 323 (M - 531) 5 November 1986 (1986-11-05) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 034 (M - 1544) 19 January 1994 (1994-01-19) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010020206A1 (fr) * 2008-08-22 2010-02-25 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Dispositif d’actionnement pour double embrayage
US8360217B2 (en) 2008-08-22 2013-01-29 Schaeffler Technologies AG & Co. KG Actuator for a dual clutch

Also Published As

Publication number Publication date
DE10102300A1 (de) 2002-07-25

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