EP3622190A1 - Dispositif d'embrayage et chaîne cinématique - Google Patents

Dispositif d'embrayage et chaîne cinématique

Info

Publication number
EP3622190A1
EP3622190A1 EP18719429.5A EP18719429A EP3622190A1 EP 3622190 A1 EP3622190 A1 EP 3622190A1 EP 18719429 A EP18719429 A EP 18719429A EP 3622190 A1 EP3622190 A1 EP 3622190A1
Authority
EP
European Patent Office
Prior art keywords
coupling device
disk carrier
plate
friction
leaf spring
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Withdrawn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
EP18719429.5A
Other languages
German (de)
English (en)
Inventor
Martin Chambrion
Tim Schmid
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 EP3622190A1 publication Critical patent/EP3622190A1/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Withdrawn legal-status Critical Current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
    • F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member

Definitions

  • the invention relates to a coupling device and a drive train for a motor vehicle.
  • the plate carriers are usually manufactured by means of roll forming technology, which requires the use of a complex tool and a relatively high energy requirement.
  • WO2013 / 000455 A1 discloses a wet clutch, which is preferably designed as a multi-plate wet clutch for a motorcycle.
  • This clutch comprises an inner basket and an outer basket, which are arranged coaxially on a transmission main shaft.
  • a number of first friction disks are engaged with the outer basket and a number of second friction disks are engaged with the inner basket, the first and second friction disks being arranged coaxially in an alternating sequence.
  • the outer basket may include an additional circumferential ring.
  • the present invention seeks to provide a coupling device with a small volume available, which can be produced with low material and assembly costs and ensures a long life.
  • the invention relates to a coupling device for transmitting a torque between a drive and an output, comprising an inner disk carrier and an outer disk carrier, which are rotatably mounted about an axis of rotation; at least one first friction plate, which is arranged torque-tight and axially displaceable on the inner disk carrier and at least one second friction plate, which is arranged torque-tight and axially displaceable on the outer disk carrier.
  • the first and the second friction plate together form a disk set.
  • the coupling device comprises a force-exerting device for realizing an axial contact pressure on the friction plates in order to transmit a torque between the inner plate carrier and the outer plate carrier via the friction plates and a hub element which serves for the mechanical connection of an abradable, the hub element with the inner plate carrier is connected by means of leaf springs substantially rotationally fixed and a respective leaf spring, each having a first end on the hub member and their respective other, second end on Inner disk carrier is mechanically fixed.
  • One of the terminals of a respective leaf spring is realized by means of a stepped bolt on a respective adjoining component, wherein the stepped bolt in the other, connected by the leaf spring member is guided axially translationally displaceable and the stepped bolt at its the fixing on the component opposite end of a bolt head with a greater radial extent than a passage in the component translating the step bolt.
  • the outer disc carrier is also referred to as a basket.
  • the first and the second friction plates are typically lamellae made of a friction material and platinum-shaped steel plates, which together form a high coefficient of friction and are inexpensive to produce.
  • This embodiment has the advantage that the inner disk carrier, the leaf springs and the hub member together form a compact unit, which is also called leaf spring core, despite the constant action of the leaf springs between the hub member and the inner disk carrier exact positioning of the hub member with respect to the inner disk carrier and consequently ensures easy installation.
  • the coupling device according to the invention is a normally closed coupling, in which therefore a force is applied in order to open it out of the normal state.
  • connection of the leaf spring is realized by means of the stepped bolt on the hub member, wherein the stepped bolt extends translationally displaceable through the inner disk carrier.
  • the coupling device should comprise a counter-plate which is rotationally fixedly connected to the outer disk carrier, wherein the counter-plate has bores and a respective bore is formed at least partially complementary to the cross-section of a bolt head of a stepped bolt.
  • the stepped bolt is mechanically connected by means of a riveted joint with the respective component.
  • the stepped bolt itself forms the rivet.
  • the stepped bolt and the inner disk carrier can be configured such that they form-fit allow a bias of the leaf springs between inner disk carrier and hub member.
  • the coupling device can furthermore have a central nut for mechanically connecting the hub element to a transmission input shaft, as well as a release bearing for compensating for rotation between rotating components of the clutch device and a connected transmission input shaft.
  • the central nut closes the coupling device by displacing the counter-plate into an installed position during assembly in which the leaf springs bring about a defined contact pressure on the plate pack, so that the coupling device can transmit a defined torque.
  • the counter plate can have centering tongues which center the release bearing.
  • the inner disk carrier can have at least one and preferably a plurality of disengaging tongues on which an axially acting force for the purpose of axial displacement of the inner disk carrier and opening of the clutch device can be applied by means of the force application device.
  • These disengaging tongues are preferably arranged on a ring formed by the inner disk carrier, which serves to receive the forces of the leaf springs, wherein the disengaging tongues extend radially inward from the radially inner side of the ring.
  • the inner disk carrier may have at least one and preferably a plurality of driving lugs, which cooperate in a form-fitting manner with first friction disks, so that torque can be transmitted between the driving lug and the first friction disks.
  • the driving lugs are constructed so that the flank centering and the axial support of the axial last arranged Reiblamelle, which is positioned on the side of the arrangement of the hub member and which is preferably a steel plate, is made narrower than the leadership of the remaining friction plates.
  • This embodiment has the advantage that the remaining friction plates are relatively free to move when the coupling device is disengaged and consequently permit a wear-reduced opening of the coupling device.
  • the driving lugs extend substantially coaxially to the axis of rotation of the coupling device.
  • At least one driving lug at the end portion facing away from the Ausgurzunge at least one pressing element is formed, with which an axial force can be applied to the friction plates to press the friction plates together and thus frictionally transmit a torque.
  • an axial displacement of the inner disk carrier and consequently the driving lug and the pressing element causes the contact pressure element to be able to move away from the friction disks and thus the axial pressure on the friction disks is reduced, so that a corresponding relative rotational movement between the individual friction plates can be performed and therefore the coupling device is opened.
  • the coupling device according to the invention does not require an extra pressure plate, since the required contact forces are transmitted to the plate pack via the individual contact elements.
  • the coupling device according to the invention is equipped as a multi-plate clutch, which may preferably find application in a motorcycle, but also the use of the coupling device in a passenger car, truck or tractor should not be excluded.
  • the coupling device according to the invention is designed as a wet clutch.
  • the coupling device according to the invention can be designed as a double clutch or as one of the trend clutches of a hybrid module. The coupling device according to the invention thus represents a cost-effective design solution, in particular for motorcycle clutches, which allows the transmission of a relatively high torque with a small number of components and a small volume.
  • a drive train for a motor vehicle which has a prime mover, in particular an internal combustion engine, and a clutch device according to the invention and a vehicle transmission, wherein the clutch device is mechanically connected to the drive machine and the vehicle transmission.
  • FIG. 1 is a sectional view of a coupling device according to the invention
  • Fig. 5 a further sectional view of the coupling device according to the invention.
  • the general structure of the coupling device according to the invention can be seen in particular from FIG.
  • the coupling device illustrated here comprises an inner disk carrier 10 arranged around a common axis of rotation 1 with a plurality of first friction disks 20 arranged rotationally fixed therewith and an outer disk carrier 30 with a plurality of second friction disks 40 fixed in rotation therewith.
  • the first friction plates 20 and the second friction plates 40 together form the plate pack 50.
  • the coupling device comprises a hub member 60, which is connected by means of a plurality of leaf springs 70 with the inner disk carrier 20 rotationally fixed. Further connections between the hub element 60 and the inner disk carrier 20 are realized by stepped bolts 80.
  • the coupling device comprises a counter-plate 100, which is centered by the stepped bolt 80.
  • the counter plate 100 is rotationally fixed to the output, such as a transmission input shaft connected.
  • the coupling device also comprises a release bearing 120 and a central nut 1 10, which are axially displaceable.
  • the coupling device comprises a bearing bush 140, on which a damper unit 130 is arranged.
  • This damper unit 130 is rotatably connected to the outer disk carrier 30 and has the function of a torsion spring with friction that dampens load surges to protect the connected drive train.
  • the bearing bush 140 serves to equalize a speed difference between the damper unit 130 and a connected transmission input shaft.
  • a to be transmitted from the Kupplungseinnchtung torque or a rotational movement to be transmitted is entered into the damper unit 130 and transmitted from this to the outer disk carrier 30, so that the second friction plates 40 are set in rotation or at this also applies the torque.
  • the normally-closed state of the coupling device transmit the second
  • Reiblamellen 40 frictionally the torque on the first friction plates 20, of which in turn the torque is positively transmitted to the inner disk carrier 10.
  • the torque is in turn transmitted to the hub member 60 via the leaf springs 70.
  • This has centrally arranged an internal toothing 62, which serves the positive connection of the torque to an output, such as a transmission input shaft, not shown here.
  • an output such as a transmission input shaft, not shown here.
  • the embodiment of the coupling device according to the invention can be seen in particular from FIG.
  • the so-called leaf spring core 90 illustrated here comprises the inner disk carrier 10, the hub element 60, the leaf springs 70 arranged therebetween and the stepped bolts 80.
  • leaf springs 70 each with a first end 71 on
  • Hub member 60 are fixed, and are fixed with a respective second end 72 on the inner disk carrier 10. These fixings on the second end 72 on the inner disk carrier 10 are realized in the embodiment shown here by means of rivets, wherein a corresponding rivet extends through a leaf spring riveting bore 16 in the inner disk carrier 10.
  • the mechanical fixation of the first end 71 of a respective leaf spring 70 is effected by a stepped bolt 80, which itself serves as a rivet and thus implements a riveted joint 91.
  • the stepped bolts 80 pass through passages 11 in inner disk carrier 10 and form on the side opposite the connection of the leaf springs 70 a bolt head 81, which is thicker in the radial direction than the bolt shaft 82 of the respective stepped bolt 80, so that a translatory movement of the stepped bolt 80 is prevented by the passage 1 1 in the direction of the hub member 60.
  • leaf spring core 90 shown in FIG. 2 can be made available in a prestressed state so that it can be integrated into a drive train in an axially reduced amount in a simple manner.
  • Figure 3 shows the concrete structural design of the inner disk carrier 10 as a single part. It can be seen that the inner disk carrier 10 has an essentially radially extending ring 12, on the radial inner side of which a plurality of disengaging tongues 13 are arranged, on which the force of the central nut 1 10 or disengaging bearing 120 can act axially.
  • the inner disk carrier 10 comprises coaxially arranged driving lugs 14, which are connected to the ring 12. On the side facing away from the ring 12 14 contact elements 15 are connected to the driving lugs, shown here in the form of webs.
  • FIG. 4 shows, in a perspective view, the counterplate 100 which has bores 101 which, at least in sections, correspond in a complementary way to the shape and size of the cross section of the bolt heads 81 of the stepped bolts 80.
  • the counter-plate 100 comprises radially inwardly extending centering tongues 102, which serve to rest on the release bearing 120 and thus center the counter-plate 100.
  • the recesses 104 serve to receive the riveting points of the stepped bolts in order to avoid collisions with the counterplate.
  • the bores 101 and the centering bores 104 are arranged in the screwing surface 103 of the counterplate 100.
  • FIG. 5 once again shows the coupling device according to the invention with different details of the individual components described.
  • the inventive design of the coupling device makes it possible to produce individual components with relatively little effort, such as, for example, the hub member 60, as shown in Figure 1.
  • the hub element 60 comprises a centrally arranged hub shell 61 with the internal toothing 62 provided therein, and a hub flange 63 adjoining the hub shell 61. It is provided that at least one of the two components hub sleeve 61 and hub flange 63 is made of a material which is softer relative to the other component so that hub sleeve 61 and hub flange 63 can be caulked together.
  • a hub element can be provided in a cost-optimized manner.
  • the coupling device according to the invention allows a simple and cost-effective measure against the effects of centrifugal force-induced widening of the driving lugs 14 of the inner disk carrier 10 characterized in that between the axially last arranged friction plate 21, which belongs to the preferably made of steel first friction plates, and the driving lugs 14 a less radial clearance exists as between the driving lugs 14 and the remaining friction plates 20th
  • a coupling device is thus provided, which ensures a centering of the leaf spring core 90 in relation to the counter plate 100 during assembly in a simple manner and facilitates assembly due to the possibility of biasing the leaf spring core 90.

Landscapes

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

Abstract

L'invention concerne un dispositif d'embrayage et une chaîne cinématique. Le dispositif d'embrayage comporte un support de disques intérieurs (10) et un support de disques extérieurs (30) ; au moins un premier disque de friction (20) qui est disposé sur le support de disques intérieurs (10) de manière à transmettre les couples et de manière axialement déplaçable ; au moins un deuxième disque de friction (40) qui est disposé sur le support de disques extérieurs (30) de manière à transmettre les couples et de manière axialement déplaçable, le premier disque de friction (20) et le deuxième disque de friction (40) formant conjointement un empilement de disques (50) ; un dispositif d'application de force servant à réaliser une pression d'appui axiale sur les disques de friction (20, 40) ; un élément moyeu (60) qui est relié de manière sensiblement solidaire en rotation au support de disques intérieurs (10) au moyen de ressorts à lames (70), un ressort à lames (70) respectif étant fixé mécaniquement, respectivement par une première extrémité (71), à l'élément moyeu (60) et, respectivement par son autre extrémité, à savoir sa deuxième extrémité (72), au support de disques intérieurs (10) ; et l'un des raccordements d'un ressort à lames (70) respectif à un composant adjacent respectif étant réalisé au moyen d'un boulon à épaulement (80) et le boulon à épaulement (80) étant guidé de manière déplaçable axialement en translation dans l'autre composant respectif raccordé au moyen du ressort à lames (70), et le boulon à épaulement (80) comprenant, à son extrémité opposée à la fixation au composant, une tête de boulon (81) présentant une étendue radiale plus grande qu'un passage (11) dans le composant guidant en translation le boulon à épaulement (80). On obtient ainsi un dispositif d'embrayage qui garantit un centrage de la partie centrale de ressort à lames (90) par rapport au plateau de réaction (100) et facilite le montage.
EP18719429.5A 2017-05-10 2018-04-10 Dispositif d'embrayage et chaîne cinématique Withdrawn EP3622190A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017110041.5A DE102017110041A1 (de) 2017-05-10 2017-05-10 Kupplungseinrichtung und Antriebsstrang
PCT/DE2018/100321 WO2018206034A1 (fr) 2017-05-10 2018-04-10 Dispositif d'embrayage et chaîne cinématique

Publications (1)

Publication Number Publication Date
EP3622190A1 true EP3622190A1 (fr) 2020-03-18

Family

ID=62044445

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18719429.5A Withdrawn EP3622190A1 (fr) 2017-05-10 2018-04-10 Dispositif d'embrayage et chaîne cinématique

Country Status (6)

Country Link
EP (1) EP3622190A1 (fr)
JP (1) JP2020509319A (fr)
CN (1) CN110573756A (fr)
BR (1) BR112019018087A2 (fr)
DE (2) DE102017110041A1 (fr)
WO (1) WO2018206034A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017130832A1 (de) 2017-12-21 2019-06-27 Schaeffler Technologies AG & Co. KG Kupplungseinrichtung
CN111075855B (zh) * 2020-01-20 2024-09-24 青岛莱吉传动系统科技有限公司 一种常闭湿式多片离合器及其执行机构和控制方法
FR3113263B1 (fr) * 2020-08-07 2022-07-22 Valeo Embrayages Embrayage de coupure de couple pour transmission hybride
CN115789121A (zh) * 2022-12-13 2023-03-14 潍坊锦翔机械有限公司 液压式离合器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013000455A1 (fr) 2011-06-30 2013-01-03 Schaeffler Technologies AG & Co. KG Embrayage humide pour une motocyclette
CN105229326B (zh) * 2013-03-15 2017-12-26 舍弗勒技术股份两合公司 离合器装置
DE102014204001A1 (de) * 2013-04-29 2014-10-30 Schaeffler Technologies Gmbh & Co. Kg Blattfeder für eine Reibungskupplung sowie Verwendung einer Blattfeder
EP3069035B1 (fr) * 2013-11-13 2018-03-28 Schaeffler Technologies AG & Co. KG Embrayage à friction
DE102014224374A1 (de) * 2014-11-28 2016-06-02 Schaeffler Technologies AG & Co. KG Kupplungseinrichtung
DE112015005351A5 (de) 2014-11-28 2017-09-28 Schaeffler Technologies AG & Co. KG Kupplungseinrichtung
DE102015202730A1 (de) 2015-02-16 2016-08-18 Schaeffler Technologies AG & Co. KG Kupplungseinrichtung
EP3365579B1 (fr) * 2015-10-22 2019-12-18 Schaeffler Technologies GmbH & Co. KG Amortisseur de vibrations de torsion et groupe propulseur hybride
WO2017097296A1 (fr) * 2015-12-08 2017-06-15 Schaeffler Technologies AG & Co. KG Dispositif d'accouplement comportant des moyens pour générer une force de ressort, venant en appui de la pression de contact, en fonction de l'état de rotation
DE102016207116B3 (de) * 2016-04-27 2017-05-04 Schaeffler Technologies AG & Co. KG Kupplung mit Momentenflussaufteilung zur partiellen Verstärkung

Also Published As

Publication number Publication date
DE102017110041A1 (de) 2018-11-15
CN110573756A (zh) 2019-12-13
BR112019018087A2 (pt) 2020-03-24
JP2020509319A (ja) 2020-03-26
DE112018002389A5 (de) 2020-01-23
WO2018206034A1 (fr) 2018-11-15

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