WO2008077377A1 - Système d'embrayage à friction - Google Patents

Système d'embrayage à friction Download PDF

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Publication number
WO2008077377A1
WO2008077377A1 PCT/DE2007/002253 DE2007002253W WO2008077377A1 WO 2008077377 A1 WO2008077377 A1 WO 2008077377A1 DE 2007002253 W DE2007002253 W DE 2007002253W WO 2008077377 A1 WO2008077377 A1 WO 2008077377A1
Authority
WO
WIPO (PCT)
Prior art keywords
friction clutch
spring force
adjusting piece
clutch device
pressure plate
Prior art date
Application number
PCT/DE2007/002253
Other languages
German (de)
English (en)
Inventor
Philippe Mih
Mathieu Jordan
Original Assignee
Luk Lamellen Und Kupplungsbau Beteiligungs 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 Luk Lamellen Und Kupplungsbau Beteiligungs Kg filed Critical Luk Lamellen Und Kupplungsbau Beteiligungs Kg
Priority to DE112007002918.8T priority Critical patent/DE112007002918B4/de
Publication of WO2008077377A1 publication Critical patent/WO2008077377A1/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
    • 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

Definitions

  • the invention relates to a friction clutch device with a central plate, which is non-rotatably connected to a housing, in particular with a clutch cover and relative to the housing by means of an actuating device, in particular a lever spring means for opening and closing the friction clutch device axially limited displacement, and with a wear compensation device.
  • the object of the invention is to provide a friction clutch device according to the preamble of claim 1, which is simple in construction and inexpensive to produce.
  • the object is in a friction clutch device with a central plate which is non-rotatably connected to a housing, in particular with a clutch cover, and axially relative to the housing by means of an actuating device, in particular a lever spring means for opening and closing the friction clutch device is displaced axially limited, and with a Wear compensation device, achieved in that in the friction clutch device, an adjusting device is integrated, through which a resulting sensor spring force, which is partially exerted by the wear compensating device, is adjustable to a defined value.
  • the central plate is, for example, a pressure plate, which is also referred to as a pressure plate or pressure disk.
  • the central plate can also be a counterpressure plate or a counterpressure surface.
  • a clutch disc with friction linings can be clamped.
  • the manufacturing tolerances can be compensated.
  • a preferred embodiment of the friction coupling device is characterized in that the adjusting device comprises at least one adjusting piece, which is defined deformable in order to adjust the resulting sensor spring force to the defined value. The deformation of the setting piece changes the resulting sensor spring force.
  • a further preferred embodiment of the friction coupling device is characterized in that the adjusting piece is fastened at an attachment point to a leaf spring device, which preferably exerts a leaf spring force on the central plate.
  • the leaf spring means serves to rotatably but axially limited displaceable, connect the pressure plate with the pressure plate.
  • the deformation of the adjusting piece changes the leaf spring force. Since the leaf spring force is part of the resulting sensor spring force, the deformation of the setting piece changes the resulting sensor spring force.
  • a further preferred embodiment of the friction coupling device is characterized in that the adjusting piece is attached to a further fastening point on the central plate, in particular on a pressure plate or on a counter-pressure plate spaced from the pressure plate.
  • the attachment of the adjusting piece on the pressure plate or the counter-pressure plate and on the leaf spring means can be done for example by means of rivet fasteners.
  • a further preferred embodiment of the friction coupling device is characterized in that the adjusting piece between the two attachment points is plastically deformable.
  • the adjusting piece is preferably a sheet metal part which is specifically deformed during assembly. During operation of the friction coupling device, the adjusting piece is not deformed.
  • a further preferred embodiment of the friction coupling device is characterized in that the adjusting piece has a support for a sensor spring device, which preferably exerts a sensor spring force on the actuating device, in particular the lever spring device.
  • the deformation of the setting piece changes the sensor spring force. Because the sensor spring force is part of the resulting sensor spring force, the deformation of the adjuster changes the resulting sensor spring force.
  • a further preferred embodiment of the friction clutch device is characterized in that the adjusting piece is attached to the housing, in particular to the clutch cover.
  • the adjusting piece is preferably integrally connected to the housing, in particular the Kupplungsdeckei.
  • a further preferred embodiment of the friction coupling device is characterized in that the adjusting piece is hook-shaped and plastically deformable.
  • the adjusting piece is preferably a hook-shaped sheet metal part, which starts from the clutch cover and is specifically deformed during assembly. During operation of the friction coupling device, the adjusting piece is not deformed.
  • Figure 1 shows a detail of a friction clutch device according to the invention with an adjusting piece in the undeformed state
  • FIG. 1 shows the same section as in Figure 1 with the setting piece in the deformed
  • Figure 3 is a Cartesian coordinate diagram in which the leaf spring force in the form of a
  • Figure 4 is a Cartesian coordinate diagram in which the force over the path in
  • Figure 5 shows a detail of a friction clutch device according to another
  • Embodiment with an adjusting piece in the undeformed state Embodiment with an adjusting piece in the undeformed state
  • Figure 6 shows the same section as in Figure 5 with the setting piece in the deformed
  • Figure 7 is a Cartesian coordinate diagram in which the sensor spring force is plotted in the form of a characteristic over the bias and
  • Figure 8 is another Cartesian coordinate diagram in which the force above the
  • Path is plotted in the form of different characteristics to the embodiment shown in Figures 5 and 6. - A -
  • the friction clutch device comprises at least one friction clutch with a housing which is fixedly connected to a counter-pressure plate or counter-pressure plate.
  • the counter-pressure plate cooperates with a pressure plate or thrust washer 1, which is also referred to as the central plate.
  • one end of an adjusting piece 4 is attached to the central plate 1.
  • the other end of the adjusting piece 4 is attached to a further fastening point 6 by means of rivet connecting elements 8 on a leaf spring device 10.
  • the leaf spring device comprises two leaf spring elements 11, 12, which serve to connect the central plate 1 in a rotationally fixed, but axially displaceable manner, to a counter-pressure plate or a pressure plate.
  • the intermediate adjusting piece 4 is plastically deformable between the attachment points 2 and 6.
  • Figure 1 the undeformed state of the Einstell committees 4 is shown. In the undeformed state, the adjusting piece 4 extends straight between the two attachment points 2 and 6.
  • Figure 2 the deformed state of the adjusting piece 4 is shown. In the deformed state, the end of the attachment point 6 is slightly angled from the end to the attachment point 2.
  • the adjusting piece 4 connects the leaf spring device 10 to the central plate 1.
  • a leaf spring force B exerted by the leaf spring device 10 acts in the same direction as a pad spring force BF exerted by a pad spring device (not shown).
  • a sensor spring force S exerted by a wear compensator acts in an opposite direction to the leaf spring force B and the pad spring force BF. From a vector addition of the sensor leather cape S, the leaf spring force B and the pad spring force BF results in the resulting sensor force R.
  • the leaf spring force B is plotted in Newton over the bias voltage V in mm in the form of a curve 20.
  • the characteristic curve 20 of the leaf spring force B increases linearly with the bias voltage V.
  • a position before a setting is designated by the setting piece.
  • a position after the adjustment is designated with the setting piece.
  • the adjusting piece 4 is deformed during assembly by a mounting force plastically defined. Due to the plastic deformation of the adjusting piece 4, the leaf spring force B changes, since the bias of the Blattfederein- direction changes. Depending on how strong the adjusting piece 4 is deformed, the clearance of the clutch changes more or less.
  • the force K in Newton is plotted over the path in mm in the form of different characteristics.
  • the characteristic curve of the resulting sensor spring force is denoted by S. 31 is a characteristic of the particular resulting sensor spring force is designated by a larger leaf spring force.
  • the associated control point is designated 32.
  • a characteristic of the particular resulting sensor spring force with a lower leaf spring force is denoted by 34.
  • the associated control point is designated 35.
  • a change in the sensor spring force S shown in FIG. 31 or 34 corresponds to a change in the position of the associated control point shown in FIG. 32 or 35.
  • the position of the control point 32 corresponds to a larger clearance.
  • the position of the control point 35 corresponds to a lower clearance.
  • Each change in the leaf spring force corresponds to a change in the clearance, that is the distance between the friction linings of the clutch disc and the pressure plate or the counter-pressure plate.
  • FIGS. 5 and 6 show a detail of a friction clutch device according to a further exemplary embodiment in different states.
  • the friction clutch device comprises a housing with a clutch cover 41.
  • the clutch cover 41 is integrally connected to a hook-shaped adjusting piece 44.
  • a support 45 for an end 46 of a sensor spring 48 is provided at the free end of the hook-shaped adjusting piece 44.
  • the other end 49 of the sensor spring 48 engages an arm 52, which is angled by a lever spring 55.
  • the lever spring 55 is located with its radially outer edge region in contact with a housing-fixed support 56. Radially inside engages the lever spring 55 (not shown) engagement system for actuating the lever spring.
  • the lever spring 55 is coupled with the interposition of a wear compensating device (not shown) with a pressure plate.
  • the adjusting piece 44 is plastically deformable.
  • FIG. 5 shows the undeformed state of the adjusting piece 44.
  • FIG. 6 shows the deformed state of the adjusting piece 44.
  • the adjusting piece 44 connects the sensor spring 48 with the clutch cover 41.
  • the associated sensor spring force acts in the same direction as one of a Blattfedereinrich- tion exerted leaf spring force as well as a pad spring force BF exerted by a pad spring device.
  • a resulting sensor spring force R results from a vector addition of the sensor spring force S with the leaf spring force B and the pad spring force BF.
  • the sensor spring force S in Newton is plotted over the bias voltage V in mm in the form of a characteristic curve 60.
  • a position before a setting of the adjusting piece is denoted by 61.
  • the position after the setting is indicated at 62.
  • the sensor spring force S changes from 61 to 62.
  • the force K in Newton is plotted over the path W in mm in the form of different characteristics.
  • the characteristic of the lever spring force or Belleville spring force is denoted by T.
  • the characteristic of the particular resulting sensor spring force is denoted by S.
  • the associated control point is designated 70.
  • a dashed line 71 indicates a sensor spring force characteristic with a greater leaf spring force.
  • the associated control point is designated 72.
  • a dotted line 74 indicates a sensor spring force characteristic with a lower leaf spring force.
  • the associated control point is designated 75.
  • a change in the sensor spring force according to FIG. 71 corresponds to a change of the control point to 72.
  • the position of the control points 70, 72 and 75 corresponds to the associated clearance. This means that each change in the particular resulting sensor spring force S corresponds to a change in clearance.

Abstract

L'invention concerne un système d'embrayage à friction comprenant un plateau central, solidarisé bloqué en rotation avec un carter, notamment un plateau de fermeture d'embrayage et pouvant être déplacé de manière limitée dans le sens axial par rapport au carter, au moyen d'un dispositif d'actionnement, notamment un dispositif ressort de levier, pour ouvrir et fermer le système d'embrayage à friction, ainsi qu'un dispositif de compensation d'usure. L'invention se caractérise en ce qu'un dispositif de réglage est intégré dans le système d'embrayage à friction, dispositif de réglage par l'intermédiaire duquel une force élastique de détection résultante, exercée en partie par le dispositif de compensation d'usure peut être ajustée à une valeur définie.
PCT/DE2007/002253 2006-12-27 2007-12-13 Système d'embrayage à friction WO2008077377A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112007002918.8T DE112007002918B4 (de) 2006-12-27 2007-12-13 Reibungskupplungseinrichtung mit Verschleißkompensationseinrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006061546 2006-12-27
DE102006061546.8 2006-12-27

Publications (1)

Publication Number Publication Date
WO2008077377A1 true WO2008077377A1 (fr) 2008-07-03

Family

ID=39322574

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/002253 WO2008077377A1 (fr) 2006-12-27 2007-12-13 Système d'embrayage à friction

Country Status (2)

Country Link
DE (1) DE112007002918B4 (fr)
WO (1) WO2008077377A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015144161A1 (fr) 2014-03-26 2015-10-01 Schaeffler Technologies AG & Co. KG Système d'embrayage à friction

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703333A1 (de) * 1997-01-30 1998-08-06 Mannesmann Sachs Ag Reibungskupplung für Kraftfahrzeuge
EP1512881A1 (fr) * 2003-09-03 2005-03-09 Luk Lamellen und Kupplungsbau GmbH Dispositif d'embrayage
US20050155834A1 (en) * 2003-11-14 2005-07-21 Linnig Trucktec Gmbh Electromagnetic friction disk clutch

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE512355C2 (sv) * 1991-11-26 2000-03-06 Luk Lamellen & Kupplungsbau Friktionskoppling, särskilt för motorfordon, motorfordon med en dylik koppling samt kopplingsaggregat och drivenhet, speciellt för motorfordon
DE10108186A1 (de) * 2001-02-21 2002-09-26 Daimler Chrysler Ag Reibungskupplung und Kupplungseinrichtung
US7066313B2 (en) * 2003-04-17 2006-06-27 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Self-adjusting clutch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703333A1 (de) * 1997-01-30 1998-08-06 Mannesmann Sachs Ag Reibungskupplung für Kraftfahrzeuge
EP1512881A1 (fr) * 2003-09-03 2005-03-09 Luk Lamellen und Kupplungsbau GmbH Dispositif d'embrayage
US20050155834A1 (en) * 2003-11-14 2005-07-21 Linnig Trucktec Gmbh Electromagnetic friction disk clutch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015144161A1 (fr) 2014-03-26 2015-10-01 Schaeffler Technologies AG & Co. KG Système d'embrayage à friction
CN106104045A (zh) * 2014-03-26 2016-11-09 舍弗勒技术股份两合公司 摩擦离合器装置

Also Published As

Publication number Publication date
DE112007002918A5 (de) 2009-09-03
DE112007002918B4 (de) 2017-01-05

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