WO2015117607A1 - Embrayage à friction - Google Patents

Embrayage à friction Download PDF

Info

Publication number
WO2015117607A1
WO2015117607A1 PCT/DE2015/200024 DE2015200024W WO2015117607A1 WO 2015117607 A1 WO2015117607 A1 WO 2015117607A1 DE 2015200024 W DE2015200024 W DE 2015200024W WO 2015117607 A1 WO2015117607 A1 WO 2015117607A1
Authority
WO
WIPO (PCT)
Prior art keywords
friction clutch
component
leaf springs
pressure plate
clutch according
Prior art date
Application number
PCT/DE2015/200024
Other languages
German (de)
English (en)
Inventor
Stefan Wörner
Original Assignee
Schaeffler Technologies AG & 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 & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Priority to DE112015000692.3T priority Critical patent/DE112015000692A5/de
Publication of WO2015117607A1 publication Critical patent/WO2015117607A1/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
    • F16D13/70—Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members
    • 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
    • F16D2013/706—Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members the axially movable pressure plate is supported by leaf springs

Definitions

  • the invention relates to a friction clutch having at least one disc-shaped first component rotatable about an axis of rotation and at least one second component which is rotationally fixedly and axially displaceably received by leaf springs, wherein the leaf springs are each riveted to a receiving surface with the components.
  • Friction clutches are used for the controllable transmission of torque.
  • it is known per se, for example from the documents DE 32 24 404 A1, DE 10 2004 018 377 A1 and WO03 / 087608 A2, to provide a component which can be displaced axially relative to another component in a rotationally fixed manner by means of leaf springs distributed over the circumference, friction linings between the two components a clutch disc can be clamped so that a friction torque is transmitted from the components via the friction linings on the clutch disc depending on a biasing force applied, for example, by means of a diaphragm spring or lever spring actuated by an actuating device.
  • a clutch housing can be provided in the absence of actuation force of the actuator closed (normally closed) or open (normally open) friction clutch, which is opened or closed under the influence of the actuating force against the action of the leaf springs.
  • the leaf springs are accommodated on receiving surfaces and riveted against the end. Due to the formation of the receiving surfaces with an edge, the leaf springs roll during the operation of the friction clutch on the edges and can be damaged over the life of the friction clutch and affect the life or the proper operation of the friction clutch.
  • the object of the invention is the further development of a friction clutch with improved life of the leaf springs.
  • the proposed friction clutch may be a forcibly opened friction clutch (normally closed), which is closed in the non-actuated state and is pressed or raised by means of an actuating device. Furthermore, the proposed friction clutch may be a forcibly closed friction clutch (normally open), which is pressed or pulled by the actuator. Furthermore, in the sense of the invention, a friction clutch is also understood to mean a multiple clutch, such as a dual clutch, in which a torque input can be divided into several, such as two, torque outputs. This may be understood, for example, tractor couplings with a main and a power take-off, a dual clutch for a dual-clutch transmission or the like. Furthermore, the friction clutch can be operated dry or wet.
  • the proposed friction clutch contains at least one disk-shaped first component which can be rotated about an axis of rotation.
  • a component may be formed, for example, as a counter-pressure plate of the friction clutch.
  • Under a counter-pressure plate is a disc part with a first friction surface for the friction linings of a clutch disc to understand.
  • the counter-pressure plate may be provided as a flywheel of a compound flywheel, as a secondary flywheel of a split flywheel, as an intermediate plate of a multiple clutch such as a double clutch with friction surfaces on each side or the like.
  • the first component may further be a clutch housing preferably connected to a counterpressure plate such as intermediate plate of a dual clutch transmission or the like.
  • At least one second component is axially displaceable relative to this at least one component and arranged in a rotationally fixed manner.
  • lever means and energy storage can be combined to at least one plate spring with radially inwardly extended plate spring tongues, where the actuator applies the actuating force of the friction clutch.
  • the at least one first component may be, for example, an annular pressure plate with a second friction surface to form a frictional connection with the friction linings of the friction clutch.
  • the at least one, first component and the at least one, second component are connected to one another by means of circumferentially distributed leaf springs with the interposition of friction between these friction linings rotatably and axially displaceable.
  • leaf springs are single, distributed over the circumference leaf springs or distributed over the circumference arranged leaf spring packages to understand with several stacked leaf springs.
  • the leaf springs are each arranged with their ends in the circumferential direction and each end connected to a first and a second component, for example, riveted.
  • the leaf springs may be formed bent at least one inflection point preferably in the region of the ends.
  • the leaf springs are each connected to a receiving surface of a component with these, preferably riveted.
  • At least one receiving surface of a component on an edge in the direction of action of the leaf spring so that the leaf spring rolls during the actuation operations at the edge.
  • a receiving surface may be provided on a receiving lug which is radially widened relative to an outer circumference of the component, wherein one edge is formed in the circumferential direction on the receiving surface of the other component.
  • a rounding is provided at such an edge in the direction of action of the leaf spring.
  • the rounding can be circular, convex, in
  • At least one component of the formed with a receiving surface in the direction of action of the leaf spring Kannte can be made of cast as gray cast iron or as a forged part.
  • the rounding can be made by machining, for example by means of a milling process.
  • the rounding is provided on a subsequent edge of the, introduced into the component rounded element, such as a circular pin, bolt or the like.
  • the component rounded element such as a circular pin, bolt or the like.
  • It can be provided elements which are rounded only in a contact area to the leaf spring and, for example, a plane bearing surface on a ner have adjoining the edge surface.
  • erosion methods, grinding and brushing methods and the like can be used for the rounding of the edge.
  • At least one of the components of sheet metal is punched and formed.
  • fillets are provided on contact surfaces in a preferred manner already during the punching and forming process tool falling. In this way, further processing operations and post-processing production steps can be avoided. It is understood that the edges of all receiving surfaces of the components used, in particular in each case the edges of both connected to each other by means of leaf springs components with aligned in the effective direction of the leaf springs bearing surfaces edges with fillets.
  • FIG. 1 shows two components of a friction clutch that can be displaced axially relative to one another by means of leaf springs and are connected in a rotationally fixed manner
  • FIG. 2 shows a receiving lug of a component of Figure 1 in detail with removed leaf spring
  • Figure 3 shows the receiving lug of the other component of Figure 1 in detail with removed leaf spring.
  • FIG. 1 shows the components 1, 2 of a friction clutch in partial view.
  • the component 1 is provided as a counter-pressure plate 3 with the friction surface 4 and the second component 2 as a pressure plate 5 with the friction surface 6 provided as a double clutch friction clutch.
  • Axially between the friction surfaces 4, 6 friction linings of a clutch disc, not shown, are interposed, which form a frictional engagement with a compression of the components 1, 2, so that moment between the components 1, 2 and the clutch disc can be transmitted.
  • the components 1, 2 are distributed by means of distributed over the circumference, formed from individual, superposed leaf springs 7 leaf spring assemblies 8 axially displaceable and non-rotatably.
  • the leaf spring ends 9, 10 are riveted by means of rivets 1 1, 12 with radially enlarged receiving lugs 13, 14 of the components 1, 2.
  • the leaf spring ends 9, 10 lie on the receiving surfaces 15, 16 of the receiving lugs 13, 14 on. If the components, for example, by axial displacement of the pressure plate 5 against the axially fixed, for example, recorded on a crankshaft of an internal combustion engine counter pressure plate 3 against each other, the lower leaf spring 7a rolls on the direction of action of the leaf springs 7 aligned edges 17, 18 from.
  • the rounded portions 19, 20 are provided at the edges 17, 18.
  • the components 1, 2 are in the embodiment shown to steel plates which are stamped from sheet metal and formed.
  • the fillets 19, 20 are made tool falling as molded.
  • FIG. 2 shows the receiving lug 14 of component 1 of FIG. 1 in detail with the leaf spring package removed.
  • the receiving surface 16 is provided at the edge 18 with the rounding 20.
  • the opening 21 serves to receive the rivet 12 of FIG. 1.
  • the opening 22 is provided for example for receiving a further leaf spring or a leaf spring package for a component such as pressure plate on the pressure plate 5 ( Figure 1) opposite side of the counter-pressure plate 3 ( Figure 1). Since these leaf springs in the effective direction does not roll on the receiving surface 16 but on the rivet heads of the rivets fastened by the openings 22, a rounding of the edge 23 can be dispensed with, but does not necessarily have to be omitted.
  • FIG. 3 shows the receiving lug 13 of component 2 of FIG. 1 with the leaf spring package 8 removed.
  • the receiving surface 15 with the opening 24 for the rivet 1 1 has the rounding 19 on the edge 17 arranged in the effective direction of the leaf springs 7 (FIG.

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 comprenant au moins un premier composant en forme de disque, qui peut tourner autour d'un axe de rotation, et au moins un second composant monté mobile axialement et solidaire en rotation contre celui-ci au moyen de ressorts à lames, chaque ressort à lames étant riveté avec les composants sur une surface de réception. Afin d'augmenter la durée de vie de l'embrayage à friction, au moins une surface de réception comporte un arrondi sur un bord dans la direction fonctionnelle des ressorts à lames.
PCT/DE2015/200024 2014-02-06 2015-01-26 Embrayage à friction WO2015117607A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112015000692.3T DE112015000692A5 (de) 2014-02-06 2015-01-26 Reibungskupplung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014202117.0 2014-02-06
DE102014202117 2014-02-06

Publications (1)

Publication Number Publication Date
WO2015117607A1 true WO2015117607A1 (fr) 2015-08-13

Family

ID=52589204

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2015/200024 WO2015117607A1 (fr) 2014-02-06 2015-01-26 Embrayage à friction

Country Status (2)

Country Link
DE (1) DE112015000692A5 (fr)
WO (1) WO2015117607A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170152897A1 (en) * 2015-11-30 2017-06-01 Eaton Corporation Twin Plate Separation Systems
DE102016214710A1 (de) 2016-08-09 2018-02-15 Schaeffler Technologies AG & Co. KG Mehrteilige materialunterschiedliche Zentralplatte für trockene Doppelkupplung und Doppelkupplung im Dreiplatten-Design

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1179593A (fr) * 1957-07-12 1959-05-26 Ferodo Sa Embrayage
DE3224404A1 (de) 1982-06-30 1984-01-05 LuK Lamellen und Kupplungsbau GmbH, 7580 Bühl Reibungskupplung sowie verfahren zu deren montage
US20020066633A1 (en) * 2000-09-08 2002-06-06 Mannesmann Sachs Ag Pressure plate assembly for a friction clutch
WO2003087608A2 (fr) 2002-04-10 2003-10-23 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Groupe d'embrayage
DE102004018377A1 (de) 2003-04-17 2004-11-04 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Selbstnachstellende Kupplung
DE102014203418A1 (de) * 2013-02-28 2014-08-28 Schaeffler Technologies Gmbh & Co. Kg Reibungskupplungseinrichtung und Verfahren zur Herstellung einer Reibungskupplungseinrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1179593A (fr) * 1957-07-12 1959-05-26 Ferodo Sa Embrayage
DE3224404A1 (de) 1982-06-30 1984-01-05 LuK Lamellen und Kupplungsbau GmbH, 7580 Bühl Reibungskupplung sowie verfahren zu deren montage
US20020066633A1 (en) * 2000-09-08 2002-06-06 Mannesmann Sachs Ag Pressure plate assembly for a friction clutch
WO2003087608A2 (fr) 2002-04-10 2003-10-23 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Groupe d'embrayage
DE102004018377A1 (de) 2003-04-17 2004-11-04 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Selbstnachstellende Kupplung
DE102014203418A1 (de) * 2013-02-28 2014-08-28 Schaeffler Technologies Gmbh & Co. Kg Reibungskupplungseinrichtung und Verfahren zur Herstellung einer Reibungskupplungseinrichtung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170152897A1 (en) * 2015-11-30 2017-06-01 Eaton Corporation Twin Plate Separation Systems
US10605312B2 (en) * 2015-11-30 2020-03-31 Eaton Intelligent Power Limited Twin plate separation systems
US11168742B2 (en) 2015-11-30 2021-11-09 Eaton Intelligent Power Limited Twin plate separation systems
DE102016214710A1 (de) 2016-08-09 2018-02-15 Schaeffler Technologies AG & Co. KG Mehrteilige materialunterschiedliche Zentralplatte für trockene Doppelkupplung und Doppelkupplung im Dreiplatten-Design
DE102016214710B4 (de) * 2016-08-09 2020-08-13 Schaeffler Technologies AG & Co. KG Doppelkupplung mit mehrteiliger materialunterschiedlicher Zentralplatte

Also Published As

Publication number Publication date
DE112015000692A5 (de) 2016-10-13

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