EP2739868A1 - Embrayage multidisque ainsi que dispositif d'actionnement pour un embrayage multidisque - Google Patents

Embrayage multidisque ainsi que dispositif d'actionnement pour un embrayage multidisque

Info

Publication number
EP2739868A1
EP2739868A1 EP12743653.3A EP12743653A EP2739868A1 EP 2739868 A1 EP2739868 A1 EP 2739868A1 EP 12743653 A EP12743653 A EP 12743653A EP 2739868 A1 EP2739868 A1 EP 2739868A1
Authority
EP
European Patent Office
Prior art keywords
pack
carrier
plate
output
input
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Withdrawn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
EP12743653.3A
Other languages
German (de)
English (en)
Inventor
Wolfgang Haas
Oswald Friedmann
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 EP2739868A1 publication Critical patent/EP2739868A1/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Withdrawn legal-status Critical Current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
    • F16D13/76—Friction clutches specially adapted to incorporate with other transmission parts, i.e. at least one of the clutch parts also having another function, e.g. being the disc of a pulley
    • 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
    • F16D21/08—Serially-arranged clutches interconnecting two shafts only when all the clutches are engaged
    • 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
    • F16D2023/123—Clutch actuation by cams, ramps or ball-screw mechanisms

Definitions

  • the invention relates to a multi-plate clutch, with the aid of which an input side can be frictionally coupled to an output side, and an actuating device for actuating such a multi-plate clutch.
  • Output shaft of a motor vehicle engine to be able to couple space-saving.
  • a multi-plate clutch in particular a dry-plate clutch, is provided for coupling an input side to an output side with a first disk set for coupling a first input carrier to a first output carrier, a second disk set for coupling a second input carrier to a second output carrier and a forwarding element for transmitting power between the first Disc pack and the second disc pack.
  • the at least two disc packs which can be actuated substantially simultaneously with the aid of the relay element configured as a lever spring, for example, it is possible to spatially distribute the individual friction pairings of the multi-disc clutch in a limited space and at the same time to transmit sufficiently high torques allow for example about 400 Nm and more space-saving.
  • the disk packs can be arranged offset from each other in the radial direction and / or in the axial direction.
  • the respective disk packs may be separate from each other separate units that can be mounted separately.
  • the lamellae of the first plate pack are in particular spaced apart from the lamellae of the second plate pack and are not arranged directly one behind the other.
  • the one disk set can have a greater extent in the axial direction and / or in the radial direction compared to the other disk set. This makes it easier via the dimensioning and / or arrangement of the disk packs to adapt the multi-plate clutch to different restrictions in the available space.
  • an actuating element for actuating the first disk pack can provide a suitable contact surface, which requires a corresponding axial space, while the second disk pack is positioned on a radius such that the second disk set the pressing surface and / or an axially extending part of the actuating element projected radially inward or radially outward.
  • the forwarding element can forward an actuating force of an actuating device applied to the first disk pack to the second disk pack.
  • the first input carrier or the first output carrier and / or a blade connected to the respective carrier press against the forwarding element, whereby the forwarding element can move such that the forwarding element in turn against the second input carrier or the second output carrier and / or one with presses the respective carrier associated slat to close the second plate pack.
  • both the first disk pack and the second disk pack can be closed with the aid of an actuating element which can be attacked by the first disk pack, so that a further actuating element connected to the actuating device is not required for closing the second disk pack.
  • the first disk set is arranged radially within the second disk set or the second disk set radially within the first disk set.
  • the axial extent of the multi-plate clutch can thereby be significantly reduced and used in the radial direction available space.
  • the first disk set and the second disk set are in particular at least partially arranged on a common axial height, that is, viewed in the radial direction overlap the disk sets at least partially.
  • the forwarding element is pivotable about a pivot point, in particular on a coupling housing, supported, in particular the forwarding element has a voltage applied to the first plate pack first contact point and a voltage applied to the second plate pack second contact point and arranged the pivot point between the first contact point and the second contact point is.
  • the forwarding element can thereby act comparable to a rocker.
  • the distance between the first contact point to the point of delivery and the second contact point to the pivot point may optionally be provided a lever translation, for example, to provide substantially the same contact pressure at different sized slats of the first plate pack for the second plate pack for the different slats.
  • At least one further plate pack is provided connected in series via a further forwarding element to the first plate pack and to the second plate packet in the direction of force flow of an actuating unit for opening and / or closing the plate clutch.
  • a further forwarding element to the first plate pack and to the second plate packet in the direction of force flow of an actuating unit for opening and / or closing the plate clutch.
  • first input carrier and the second input carrier are rotatably connected indirectly or directly to the input side and / or the first output carrier and the second output carrier rotatably connected directly or indirectly to the output side, said in particular, the first input carrier and the second input carrier and / or the first output carrier and the second output carrier in the axial direction, in particular in different axial directions, are designed to be movable.
  • the non-rotatable connections can ensure that the torque to be transmitted from the input side, for example a crankshaft of a motor vehicle, is transmitted via the disk packs to the output side, for example a belt pulley for driving ancillaries.
  • the respective input carrier can be moved axially relative to the associated output carrier.
  • both input carriers are axially movable and all output carriers immovably fixed in the axial direction with the output side or all output carriers are axially movable and all input carriers immovably fixed in the axial direction with the input side. This facilitates the assembly of the multi-plate clutch.
  • one input carrier can be guided and / or centered by the other input carrier or one output carrier by the other output carrier.
  • a clearance fit is provided between the supports following directly in the radial direction so that a relative movement in the axial direction can take place in a space-saving manner without great frictional losses.
  • the two following carriers can form a slide bearing.
  • a sliding sleeve and / or a lubricant may be provided to form a sliding bearing between the two following carriers.
  • the first disk set and the second disk set are at least partially arranged in a cup-shaped clutch housing, wherein the clutch housing is designed in particular as a pulley for driving auxiliary units by means of a traction means.
  • the disk packs can be connected together with the clutch housing as a common preassembled unit, for example, with a crankshaft of a motor vehicle engine.
  • the multi-plate clutch can be opened, so that the ancillaries can be driven, for example by means of a connected via the traction means electric motor.
  • This allows in particular a Stand air conditioning of a motor vehicle by an air conditioner can be operated when the vehicle engine is switched off.
  • an actuating device for actuating the multi-plate clutch wherein the actuating device has a particular axially displaceable actuating element for actuating the first disk set, the second disk set is actuated by the actuating element exclusively indirectly via the forwarding element.
  • An additional actuator for actuating the second plate pack is not required, so that there is a simple and space-saving design.
  • a torsional vibration damper in particular a Tilger adopted or at least one connected via an elastic connecting element absorber mass, is provided, in particular, the torsional vibration damper is arranged radially outward to the first disk set and the second disk set.
  • the torsional vibration damper may in particular be connected to the input side or the output side.
  • a crankshaft hub connectable, with a pot-like transmission element is rotatably connected, wherein the transmission element in particular the first disc pack and the second disc pack can overlap radially outward, so that the torsional vibration damper attached to the radially outwardly facing surface of the transmission element can be.
  • an absorber mass can be connected to the transmission element via a rubber-elastic element in order to form a rubber seal.
  • an input side for introducing a torque and an output side for discharging a torque are provided, wherein the output side is mounted on the input side, wherein in particular the input side is formed by an output shaft of an automotive engine or connectable to the output shaft hub and / or the output side is formed by a clutch cover or a pulley.
  • the output side can be supported for example via a ball bearing, in particular a 2-row ball bearing, on the input side.
  • the ball bearing can be dimensioned sufficiently large in order to be able to remove forces in the radial direction and / or in the axial direction between the input side and the output side.
  • the invention further relates to an actuator for actuating a multi-plate clutch, which may be as described above and further educated, with an axially movable actuator for actuating the multi-plate clutch, coupled to the actuator rotatable disengaging ring and a drive unit, in particular an electric motor driven spindle drive to Rotating the disengagement ring, wherein the disengagement ring is supported on a support ring such that the disengagement ring as a result of a rotation performs an axial movement for moving the actuating element.
  • the release ring When the release ring is rotated, the release ring can slide, for example, on a ramp of the support ring and thereby perform a movement with a proportion of movement in the axial direction and thereby move the actuator, whereby the actuator can close the first disc pack and the forwarding element and the second disc pack.
  • a suitable ratio between the drive torque available by the drive unit and the intended disengagement force or the intended contact pressure can be adjusted.
  • the release ring can be actuated by the drive unit from radially outside, so that installation space is provided radially on the inside which is not required by the drive unit. This makes it possible to provide further functional components radially inside the disengagement ring and in particular radially inside the disengagement bearing.
  • an output shaft of an automotive engine and / or a hub for attachment to the output shaft can be arranged radially inside the actuator without having to leave space for components of the drive unit.
  • the release ring can be moved so that it is not necessary to perform a pivoting or tilting movement.
  • the actuating element may, for example, be embodied in one piece with the disengaging ring or be connected directly or indirectly to the disengaging ring. It is also possible that the actuating element engages via a thrust bearing, in particular an axial sliding bearing, which is preferably formed on the surfaces of the disengaging ring and the actuating element which can be slid off against one another, on the disengaging ring.
  • the actuating element is over a release bearing relatively rotatably coupled to the actuating element with the actuating element such that the axial movement of the disengagement ring can be passed to the actuating element.
  • the release bearing can in particular remove forces in the radial direction and / or in the axial direction.
  • the release ring form an outer ring of the release bearing.
  • An inner ring of the release bearing which is designed in particular rotatable relative to at least one bearing ball to the outer ring, for example, via a shoulder on the actuating element engage to move the actuator in a rotation of the disengagement ring in the axial direction can.
  • the inner ring of the release bearing can be made in one piece with the actuating element. With the help of the release bearing the forces occurring in particular when closing the multi-plate clutch can be removed.
  • the disengaging ring is supported by at least one ball ramp unit on the support ring, wherein in particular the ball ramp unit has a voltage applied to the disengagement ring and the support ball and the ball is guided in a direction obliquely to the circumferential direction and obliquely to the axial direction ball ramp.
  • the ball ramp unit has a voltage applied to the disengagement ring and the support ball and the ball is guided in a direction obliquely to the circumferential direction and obliquely to the axial direction ball ramp.
  • the disengagement ring has a toothing for the rotationally fixed connection with the drive unit.
  • the disengagement ring at least in a partial region on the radially outer periphery of the teeth, so that the drive unit via a engaging in the toothing spindle or helically configured screw, which can be driven in particular by an electric motor, the disengaging ring with a suitably selected gear ratio at least partially can twist.
  • the toothing extends only partially in the circumferential direction, so that in a peripheral region that can not be reached during operation, no toothing must be provided.
  • the toothing has, in particular, an extension in the axial direction, which corresponds at least to the maximum travel distance of the disengagement ring at the intended wear end of the slats.
  • the actuating element is designed substantially annular.
  • the actuating element may in particular have interruptions in the circumferential direction on the end facing the first disk pack. This can be done by the actuator in the circumferential direction a uniform contact pressure to be exercised.
  • the actuating element can have a shoulder on the side facing the first disk pack, so that the actuating element can engage with a correspondingly higher contact surface on the first disk pack.
  • the multi-plate clutch which may be as described above and further educated, provided an actuating device for the simultaneous operation of the first disk set and the second disk set, the actuating device as described above, and can be further developed. Due to the design of the actuator, the disk sets of the multi-plate clutch can be operated in a particularly space-saving manner, so that even create additional space for other components. As a result, a space-saving coupling of motor vehicle components, in particular an output shaft of a motor vehicle engine, for example with a pulley, allows, in particular at the same time a sufficiently high contact force for frictional transmission of torque of about 400 Nm and more can be provided.
  • the invention further relates to a pulley arrangement for driving ancillaries of a motor vehicle with a connectable to an output shaft of an automotive engine multi-plate clutch, which may be as described above and further educated, and a multi-disc clutch at least partially covering pulley for driving a traction device.
  • the pulley arrangement may in particular comprise an actuating device for actuating the multi-plate clutch, wherein the actuating device may be formed and developed as described above. This allows a space-saving coupling of the output shaft ds motor vehicle engine with the pulley, wherein in particular at the same time a sufficiently high contact pressure for the frictional transmission of torque of about 400 Nm and more can be provided.
  • 1 is a schematic sectional view of a multi-plate clutch
  • 2 is a schematic detail view of the multi-plate clutch of FIG. 1
  • FIG. 3 is a schematic plan view of the multi-plate clutch of FIG. 1,
  • FIGS. 4 shows a schematic sectional view of an actuating device of the multi-plate clutch from FIGS. 1 and
  • FIG. 5 shows a schematic side view of a disengagement ring of the actuating device from FIG. 4.
  • the multi-plate clutch 10 shown in FIGS. 1 and 2 has a clutch unit 12 which can be actuated by means of an actuating element 14 of an actuating device 16.
  • the coupling unit 12 has a first plate pack 18, which is arranged radially inside a second plate pack 20 of the coupling unit 12.
  • the second disk set 20 has a greater extent in the axial direction than the first disk set 18, so that a circumferential circumferential projection 21 of the actuating element 14 can engage radially to the second disk pack 20 on the first disk pack 18.
  • the first plate pack 18 has a first input carrier 24 connected in a rotationally fixed manner to an input flange 22 and a first output carrier 28 non-rotatably connected to a pulley 26 acting as a clutch cover, which, as a result of a relative movement in the axial direction, frictionally engages alternately in the first input carrier 24 or in each case bring the first output carrier 28 mounted slats 30 or can solve.
  • the input flange 22 is connected in the illustrated embodiment with a hub 31 which may be connected to an output shaft of an automotive engine.
  • the pulley 26 may in particular be relatively rotatably supported on the hub 31 via a double-row ball bearing 33.
  • the second plate pack 20 has a second input carrier 32 connected in a rotationally fixed manner to the input flange 22 and a second output carrier 34 connected in a rotationally fixed manner to the belt pulley 26, which can be displaced relative to one another in the axial direction in order to produce frictional engagement via lamellae 30.
  • An absorber mass 38 is connected to the input carrier 22 via an elastic connecting element 36 in order to form a torsional vibration damper 40 in the manner of a rubber absorber.
  • the projection 21 of the actuating element 14 only presses against the first plate pack 18 and generates on this a compressive force, whereby the first input carrier 24 and the first output carrier 28 hinged slats of the first plate pack 18 are axially displaced to bring about a frictional engagement.
  • the first disk pack 18 bears against a first contact point 42 of a forwarding element 44, which is pivoted on a pivoting point 46 supported on the belt pulley 26 and thereby presses against the second disk pack 20 with a second contact point 48.
  • the actuating force introduced by the actuating element 14 can be forwarded to the second plate pack 20 via the relay element 44 to a different radius in order to be suspended by a relative movement of the disks of the second disk pack 20, which are hung on the second input carrier 32 and the second output carrier 34 also to close the second disk pack 20.
  • both the first disk pack 18 and the second disk pack 20 can simultaneously transmit a torque between the input flange 22 and the pulley 26.
  • the actuating device 16 has a drive unit 50 configured as an electric motor driven spindle drive, which engages via a rotatably driven spindle 52 in a toothing 54 of a disengagement ring 56 provided radially on the outside.
  • the disengagement ring 56 can be rotated by the spindle 52 and supported by balls 58 on a stationary support ring 60 such that the disengagement ring 56 is displaced in the axial direction as a result of the rotation.
  • the release ring 56 may be mounted on the actuating element 14 via a release bearing 62.
  • the disengagement ring 56 itself can form an outer ring of the disengagement bearing 62, which is mounted on an inner ring 66 in a relatively rotatable manner via bearing balls 64.
  • the inner ring 66 can abut against a stop 68, which is formed in particular by a shoulder in the actuating element 14.
  • the disengagement ring 56 can be displaced together with the inner ring 66 in the axial direction, thereby taking the actuation element 14 in order to close the coupling unit 12.
  • Release ring 56 is supported on the support ring 60, be used in inclined ball ramps 70, which are provided in the disengagement ring 56.
  • About the extent of the inclination of the ball ramps 70 to the axial direction and the circumferential direction can be adjusted by which distance in the axial direction of the release ring 56 at a certain rotation in the circumferential direction can be moved.
  • the ball ramp 70 is bevelled against the circumferential direction by approximately 20 ° ⁇ 5 °.
  • the release ring 56 may be supported on at least one ball ramp unit on the support ring 60, wherein in particular the ball ramp unit has a voltage applied to the disengagement ring 56 and the support ring 60 ball 58 and the ball 58 in an oblique to the circumferential direction and obliquely to the axial direction Ball ramp 70 is guided.
  • the release ring 56 may have a toothing 54 for the rotationally fixed connection with the drive unit 50.
  • the actuator 14 may be configured substantially annular.
  • a pulley arrangement for driving ancillaries of a motor vehicle with a connectable to an output shaft of an automotive engine multi-disc clutch 10 (as described above) and a multi-plate clutch 10 at least partially covering pulley 26 for driving a traction means disclosed.

Abstract

L'invention porte sur un embrayage multidisque, en particulier un embrayage multidisque sec destiné à accoupler un côté d'entrée à un côté de sortie, comprenant un premier paquet de disques (18) servant à accoupler un premier support d'entrée (24) à un premier support de sortie (28), un second paquet de disques (20) destiné à accoupler un second support d'entrée (32) à un second support de sortie (34) et un élément de transmission (44) servant à transmettre la force entre le premier paquet de disques (18) et le second paquet de disques (20). Grâce aux au moins deux paquets de disques (18, 20), qui peuvent être actionnés sensiblement simultanément lors d'un actionnement de l'embrayage multidisque à l'aide de l'élément de transmission (44) réalisé par exemple sous la forme d'un ressort à levier, il est possible de répartir les différentes paires de friction de l'embrayage multidisque dans un espace de construction limité et, en même temps, de permettre la transmission de couples suffisamment grands, par exemple d'environ 400 Nm et plus, avec une grande économie d'espace de montage.
EP12743653.3A 2011-08-05 2012-07-12 Embrayage multidisque ainsi que dispositif d'actionnement pour un embrayage multidisque Withdrawn EP2739868A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011080519 2011-08-05
DE102012203587 2012-03-07
PCT/DE2012/000693 WO2013020530A1 (fr) 2011-08-05 2012-07-12 Embrayage multidisque ainsi que dispositif d'actionnement pour un embrayage multidisque

Publications (1)

Publication Number Publication Date
EP2739868A1 true EP2739868A1 (fr) 2014-06-11

Family

ID=46633955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12743653.3A Withdrawn EP2739868A1 (fr) 2011-08-05 2012-07-12 Embrayage multidisque ainsi que dispositif d'actionnement pour un embrayage multidisque

Country Status (4)

Country Link
EP (1) EP2739868A1 (fr)
CN (1) CN104024672B (fr)
DE (2) DE102012212171A1 (fr)
WO (1) WO2013020530A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112013002359A5 (de) * 2012-05-07 2015-01-22 Schaeffler Technologies Gmbh & Co. Kg Riemenscheibenanordnung für ein startergetriebe zum starten einer brennkraftmaschine eines kraftfahrzeugs
DE102014217740B4 (de) 2013-10-02 2020-08-27 Schaeffler Technologies AG & Co. KG Riemenscheibenanordnung mit als Kupplung wirkender Rückdrehkulisse für Start-Stopp-Systeme
CN105657655A (zh) * 2016-01-06 2016-06-08 广东欧珀移动通信有限公司 一种信号搜索方法、设备及系统
DE102017130266A1 (de) * 2017-07-17 2019-01-17 Schaeffler Technologies AG & Co. KG Hybridmodul
DE102017130272A1 (de) * 2017-07-17 2019-01-17 Schaeffler Technologies AG & Co. KG Hybridmodul
DE102019201980A1 (de) 2019-02-14 2020-08-20 Robert Bosch Gmbh Doppelkupplungsgetriebe für ein Elektrofahrzeug und Antriebseinheit für ein Elektrofahrzeug
DE102019116593A1 (de) * 2019-03-20 2020-09-24 Schaeffler Technologies AG & Co. KG Mehrscheibenkupplung mit optimierter Verschiebereibung; Hybridmodul, Doppelkupplungseinrichtung sowie Antriebsstrang

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CH206636A (de) * 1936-05-22 1939-08-15 Kattwinkel Hans Kupplungseinrichtung, insbesondere für Kraftfahrzeuge.
GB491675A (en) * 1936-08-24 1938-09-07 Hans Kattwinkel Improvements in or relating to laminated disc clutches
GB519938A (en) * 1938-03-30 1940-04-10 Hans Kattwinkel Improvements in or relating to laminated disc clutches
DE717184C (de) * 1938-09-16 1942-02-07 Hans Kattwinkel Kupplungseinrichtung, insbesondere fuer Kraftfahrzeuge mit Wechselgetriebe
FR2539683B1 (fr) * 1983-01-24 1988-08-12 Valeo Dispositif pour accoupler a volonte a un arbre moteur tant un arbre mene, qu'une masse d'inertie, notamment pour vehicules automobiles
FR2871106B1 (fr) * 2004-06-03 2007-10-05 Peugeot Citroen Automobiles Sa Element de transmission a double embrayage pour chaine de traction hybride de vehicule automobile, procede de montage, et vehicule automobile equipe d'un tel element

Non-Patent Citations (1)

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See references of WO2013020530A1 *

Also Published As

Publication number Publication date
CN104024672A (zh) 2014-09-03
WO2013020530A1 (fr) 2013-02-14
DE112012003261A5 (de) 2014-05-08
DE102012212171A1 (de) 2013-02-07
CN104024672B (zh) 2017-11-17

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