EP2734744A1 - Embrayage à friction avec dispositif de rattrapage - Google Patents

Embrayage à friction avec dispositif de rattrapage

Info

Publication number
EP2734744A1
EP2734744A1 EP12746263.8A EP12746263A EP2734744A1 EP 2734744 A1 EP2734744 A1 EP 2734744A1 EP 12746263 A EP12746263 A EP 12746263A EP 2734744 A1 EP2734744 A1 EP 2734744A1
Authority
EP
European Patent Office
Prior art keywords
friction clutch
pressure
lever
friction
clutch
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP12746263.8A
Other languages
German (de)
English (en)
Inventor
Dmitrij Tagunov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP2734744A1 publication Critical patent/EP2734744A1/fr
Withdrawn legal-status Critical Current

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
    • F16D13/00—Friction clutches
    • F16D13/22—Friction clutches with axially-movable clutching members
    • F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
    • F16D13/40—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs in which the or each axially-movable member is pressed exclusively against an axially-located member
    • F16D13/42—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs in which the or each axially-movable member is pressed exclusively against an axially-located member with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member
    • F16D13/44—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs in which the or each axially-movable member is pressed exclusively against an axially-located member with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member 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
    • 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
    • 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
    • F16D13/75—Features relating to adjustment, e.g. slack adjusters
    • F16D13/757—Features relating to adjustment, e.g. slack adjusters the adjusting device being located on or inside the clutch cover, e.g. acting on the diaphragm or on the pressure plate
    • 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
    • F16D21/00—Systems comprising a plurality of actuated clutches
    • F16D21/02—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways
    • F16D21/06—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways at least two driving shafts or two driven shafts being concentric
    • F16D2021/0684—Mechanically actuated clutches with two clutch plates
    • 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
    • F16D2023/126—Actuation by rocker lever; Rocker levers therefor

Definitions

  • the invention relates to a friction clutch, in particular in a double clutch with driving and power take-off with a plate spring against a counter-pressure plate under tension of friction linings of a clutch disc axially biased and distributed over the circumference, axially loaded by a releaser, with a predetermined axial play against the Reliever playful knee levers by means of first hinges rotatably arranged pressure levers against the action of the diaphragm spring displaceable pressure plate and means for adjusting the axial play.
  • the provided for the driving, effective between the crankshaft of the internal combustion engine and the transmission input shaft of the speed change gear friction clutch comprises a unit of a counter-pressure plate and a housing, which may be formed integrally or separately, with an axially displaceable and non-rotatably received on this pressure plate on by means of a diaphragm spring is biased against the counter-pressure plate with the interposition of friction linings of a clutch disc.
  • the pressure plate is arranged with respect to the counter-pressure plate on the side facing away from the releaser and is disengaged by means of the release lever axially acted upon pressure lever displacing knee lever as raised.
  • a predetermined axial play for example, in the amount of 2 mm preset. If wear on the friction linings occurs, this axial play is successively reduced until the toggle lever comes into contact with the releaser. In this case, the effect of the disc spring with respect to the pressure plate can be reduced so that the friction clutch slips and, if appropriate, the friction linings are exposed to high thermal loads.
  • the object of the invention is therefore to propose a generic friction clutch, which makes manual adjustment of the axial clearance over life superfluous or at least increases the setting intervals.
  • the object is by a friction clutch, in particular in a dual clutch with driving and power take-off with a plate spring against a counter-pressure plate under tension of friction linings of a clutch plate axially biased and distributed over the circumference, axially loaded by a releaser, with a predetermined axial play opposite the release lever playful toggle levers by means of first hinges rotatably arranged pressure levers against the action of the diaphragm spring displaceable pressure plate and means for adjusting the Axiälspiels solved, wherein an automatic adjustment device is provided serially to the means.
  • This adjusting device compensates path-dependent closed friction clutch a due to the wear of the friction linings and thereby displacing in the direction of the releaser pressure plate decreasing axial play between toggle and pressure plate and fulfills or automatically supplements the function of an adjustment of the means such as adjusting screws between pressure plate and pressure levers.
  • the adjusting device by means of the first pivot joints on the toggle levers rotatably arranged pressure lever with a second pivot, which is fixed to a pendulum piece at several axial positions, and at these positions against the pendulum piece effective stops of the pressure lever.
  • a clutch disc with friction linings of a lining thickness of 10 mm may be provided, wherein an adjustment of the friction clutch is carried out at a wear of 2 mm and the axial clearance is set to 2 mm. Reduces the friction lining thickness, reduces the axial play to exhaustion and is then increased in a successful adjustment again to 2 mm. This process can be repeated twice until reaching the wear limit of the friction linings in this embodiment.
  • An adjustment takes place, for example, when the wear of the friction linings over a pitch in the closed state or opening friction clutch against the action of the plate spring by means of a displacement of a pivot of the pressure lever in a next, further away from the toggle and the pressure plate closer, adjacent position and a Displacement of the pressure lever in a next, further away from the knee lever and the pressure plate closer, adjacent stop.
  • the adjustment can be prevented during opening of the friction clutch by the second rotary joint according to an adjustable pliers prevents re-adjustment, and is readjusted only in the closed state.
  • the swivel joint can be displaced into the next position by applying a corresponding disengaging force during the disengagement of the friction clutch, the corresponding disengaging force being counteracted by the diaphragm spring.
  • the pivot pin can be designed to be radially inwardly displaceable.
  • the pressure lever in the region of the stop to the pendulum piece can have an asymmetrical circumference with respect to a pivot point of the second rotary joint.
  • the stops can be sawtooth-shaped, so that at increasing wear a transition in the next stop is facilitated, but the disengagement is still transmitted safely at not yet sufficient for an adjustment wear on the pendulum piece.
  • FIG 3 shows the friction clutch of Figures 1 and 2 after an adjustment process.
  • Figure 1 shows a partial section of the assembly unit of the dual clutch 2 with a friction clutch not shown in detail of a power take-off arranged friction clutch 1 with the rotating to a rotational axis of the dual clutch 2, here for example integrally formed from the counter-pressure plate 3 and the housing 18 assembly and the opposite of this
  • the pressure plate 4 is in the closed state against the action of the axially fixedly supported by means of the stop plate 5 cup spring 6 against the platen 3 with the interposition of the friction linings 7 with a transmission input shaft, not shown rotationally connected clutch disc 8 axially biased, so that the maximum transmittable via the friction clutch 1 torque of the associated with a flywheel of a crankshaft or the like counter-pressure plate. 3 is transmitted via the friction linings 7 and the clutch disc 8 to the transmission input shaft.
  • the friction clutch 1 is disengaged by axial displacement of the pressure plate 4 against the counter-pressure plate 3.
  • a non-illustrated releaser radially inwardly distributed over the circumference, by means of the radially outwardly rotatable on the fixed to the counter-pressure plate 3 connected housing 18 by means of the pivot bearing 10 mounted knee lever 9 axially applied, in each case by means of first pivot joints 1 1 pressure lever 12th by means of second pivot joints 13 and stops 14 axially acting on axially displaceable pendulum pieces 15, which in turn displace the adjusting screws 16a, which are fixedly connected to the pressure plate 4, axially.
  • the means 16 such as adjusting screws 16 a are only applied to the pendulum pieces 15.
  • the hinges 13 are hereby formed from the pivot pins 22 which are rotatably received in a plurality of axially adjacent to each other in a predetermined pitch arranged joint cups 23 with the positions a, b, c.
  • Figure 2 shows the friction clutch 1 of Figure 1 in the open state with the clearance 24 between pressure plate 4 and friction linings 7, so that no torque is transmitted through the friction clutch 1.
  • the axial displacement of the pressure plate is effected by axial loading of the plungers 19 by the releaser in the direction of counter-pressure plate 3 with displacement of the toggle lever 9 to the pivot bearings 10.
  • the pressure lever 12 meldverlagert and act on the - not yet shown in the adjusted state of the friction clutch.
  • FIG. 3 shows the friction clutch 1 in the closed state after an adjustment due to wear of the friction linings 7.
  • the pressure lever 12 are now in the stop 14 of the position b and the pivot pin 22 in the sockets 23 of the position b, so that despite reduced friction lining thickness of the friction linings the pressure pieces 19 of the knee lever 9 of the axial distance 20 of the new state is restored.
  • pressure lever 12 and pivot pin 22 finally move into the position c.
  • an adjustment of position a in position b results with reference to Figures 1 to 3 as follows: decreases the axial distance 20, the kinematics and the basic position of the lever mechanism of the toggle lever 9, the pressure lever 12 and the pivot joints 1 1, 13 changes.
  • the changed force ratios of the plate spring 6 and the changed kinematics occur at the hinges 13 and the stops 14 at by the voltage applied to the pressure pads 19 releaser with the friction clutch closed or at the beginning of an opening operation of the friction clutch 1 displacement forces in the direction of the pressure plate 4, resulting in a skip the individual positions a / b or with further wear the positions b / c delimiting areas of the joint sockets 23 and stops 14 leads.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

L'invention concerne un embrayage à friction, en particulier dans un double embrayage avec mode de marche et sortie auxiliaire, doté d'un plateau de pression axialement précontraint contre un plateau de contre-pression par une rondelle Belleville sous l'effet du serrage de garnitures de friction d'un disque d'embrayage et pouvant être déplacé à l'encontre de la force du ressort Belleville au moyen de leviers de pression répartis sur la circonférence, disposés de manière à pouvoir tourner au moyen de premières articulations à charnière sur des genouillères axialement précontraintes par un dispositif de débrayage et présentant un jeu axial prédéfini par rapport au dispositif de débrayage, et de moyens de rattrapage du jeu axial. Afin que le couple appliqué en mode de marche puisse être transmis de manière constante sur toute la durée de vie lorsque les garnitures de friction s'usent, l'embrayage selon l'invention comporte un dispositif automatique de rattrapage monté en série avec les vis de réglage entre les leviers de pression et le plateau de pression.
EP12746263.8A 2011-07-22 2012-07-02 Embrayage à friction avec dispositif de rattrapage Withdrawn EP2734744A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011079630 2011-07-22
PCT/DE2012/000659 WO2013013651A1 (fr) 2011-07-22 2012-07-02 Embrayage à friction avec dispositif de rattrapage

Publications (1)

Publication Number Publication Date
EP2734744A1 true EP2734744A1 (fr) 2014-05-28

Family

ID=46651295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12746263.8A Withdrawn EP2734744A1 (fr) 2011-07-22 2012-07-02 Embrayage à friction avec dispositif de rattrapage

Country Status (5)

Country Link
US (1) US9133890B2 (fr)
EP (1) EP2734744A1 (fr)
CN (1) CN103717932B (fr)
DE (2) DE102012211435A1 (fr)
WO (1) WO2013013651A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015007282A2 (fr) 2013-07-17 2015-01-22 Schaeffler Technologies Gmbh & Co. Kg Levier réglable pour dispositif d'accouplement à prise de force
CN104653650B (zh) * 2013-11-19 2019-12-17 舍弗勒技术有限两合公司 具有降低的杂质颗粒进入的离合器壳体
DE102015201885A1 (de) * 2015-02-04 2016-08-04 Schaeffler Technologies AG & Co. KG Reibkupplungsvorrichtung mit Verschleißnachstellung
DE102015215447A1 (de) * 2015-08-13 2017-02-16 Zf Friedrichshafen Ag Antriebsmodul für einen Antriebsstrang eines Hybridfahrzeugs
TR201709572A2 (tr) * 2017-06-29 2019-01-21 Valeo Otomotiv Sanayi Ve Ticaret A S Levye yapilanmasina sahi̇p traktör debri̇yaji
DE102017116871A1 (de) 2017-07-26 2019-01-31 Schaeffler Technologies AG & Co. KG Kupplungseinrichtung
DE102023128950A1 (de) * 2023-04-05 2024-10-10 Schaeffler Technologies AG & Co. KG Reibungskupplung
WO2024208393A1 (fr) * 2023-04-05 2024-10-10 Schaeffler Technologies AG & Co. KG Embrayage à friction

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2314006C3 (de) * 1973-03-21 1978-08-10 Luk Lamellen Und Kupplungsbau Gmbh, 7580 Buehl Reibungskupplung
DE3004277A1 (de) * 1980-02-06 1981-08-13 LuK Lamellen und Kupplungsbau GmbH, 7580 Bühl Kupplung
DE19510905A1 (de) * 1994-03-29 1995-10-05 Luk Lamellen & Kupplungsbau Reibungskupplung
US6012561A (en) * 1998-09-15 2000-01-11 Chrysler Corporation Dual clutch design for and electro-mechanical automatic transmission having a dual input shaft
GB2354561B (en) * 1999-03-12 2003-04-02 Luk Lamellen & Kupplungsbau Clutch assembly with wear adjustment device
ATE421648T1 (de) * 2005-02-11 2009-02-15 Luk Lamellen & Kupplungsbau Kupplungsaggregat
WO2008025323A1 (fr) * 2006-08-31 2008-03-06 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Dispositif d'actionnement d'un accouplement à frottement à réglage automatique
ATE516450T1 (de) * 2007-03-22 2011-07-15 Schaeffler Technologies Gmbh Selbstnachstellende reibungskupplung sowie doppelkupplung mit einer solchen reibungskupplung
EP2313665B1 (fr) * 2008-08-07 2013-11-27 Schaeffler Technologies AG & Co. KG Procédé d'installation d'un dispositif de transmission de couple dans une chaîne cinématique d'un véhicule

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2013013651A1 *

Also Published As

Publication number Publication date
US9133890B2 (en) 2015-09-15
WO2013013651A1 (fr) 2013-01-31
US20140131161A1 (en) 2014-05-15
CN103717932A (zh) 2014-04-09
DE102012211435A1 (de) 2013-01-24
CN103717932B (zh) 2016-10-26
DE112012003078A5 (de) 2014-07-10

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