WO2014063699A1 - Spring bundle for clutch disc - Google Patents

Spring bundle for clutch disc Download PDF

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Publication number
WO2014063699A1
WO2014063699A1 PCT/DE2013/200233 DE2013200233W WO2014063699A1 WO 2014063699 A1 WO2014063699 A1 WO 2014063699A1 DE 2013200233 W DE2013200233 W DE 2013200233W WO 2014063699 A1 WO2014063699 A1 WO 2014063699A1
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WO
WIPO (PCT)
Prior art keywords
spring
clutch disc
radially
recesses
input part
Prior art date
Application number
PCT/DE2013/200233
Other languages
German (de)
French (fr)
Inventor
Júlio Cordeiro da Silva
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 DE112013005108.7T priority Critical patent/DE112013005108A5/en
Priority to BR112015009082A priority patent/BR112015009082A2/en
Priority to CN201380055119.2A priority patent/CN104755798B/en
Priority to EP13805252.7A priority patent/EP2912337A1/en
Publication of WO2014063699A1 publication Critical patent/WO2014063699A1/en

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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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/123—Wound springs
    • F16F15/1232—Wound springs characterised by the spring mounting
    • F16F15/12346—Set of springs, e.g. springs within springs
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/123—Wound springs
    • F16F15/12353—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations
    • F16F15/1236—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations resulting in a staged spring characteristic, e.g. with multiple intermediate plates
    • F16F15/12366—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations resulting in a staged spring characteristic, e.g. with multiple intermediate plates acting on multiple sets of springs
    • F16F15/12373—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations resulting in a staged spring characteristic, e.g. with multiple intermediate plates acting on multiple sets of springs the sets of springs being arranged at substantially the same radius

Definitions

  • the invention relates to a clutch disc having a rotatable about an axis input part with radially outer friction linings and at least three circumferentially distributed window-shaped recesses and a relation to the input part at a limited angle about the rotational axis rotatable relative to the output part with a hub and arranged radially outside the hub , Distributed over the circumference, aligned with the recesses in the non-rotated state of the input part and output part cutouts, wherein in the recesses and cutouts each compression spring assemblies consisting of at least one between stops of the recesses and cutouts under bias built-in outer spring and housed in this, shorter inner spring are included.
  • Generic clutch discs are known for example from DE 102 18 472 A1 and may have a multi-stage characteristic of the compression spring assemblies in that the outer springs under bias in input side and output side recesses or cutouts under bias, that is, are recorded without clearance angle and therefore upon rotation of input - And starting part against each other are acted upon immediately, while the accommodated in the outer spring inner spring is shorter than the outer spring and thus only at larger angles of rotation of corresponding Beauftschungs Suiteen such as circumferential boundaries of the cutouts or recesses is applied.
  • the inner spring can be excited to oscillate, which can manifest itself in a pendulum of the end faces of the inner spring between the Beauftschungs Schemeen and leads to unwanted noise of the clutch disc.
  • wear of the springs can occur by appropriate contact with each other.
  • the object of the invention is the development of the prior art with increased spring capacity with low intrinsic friction of the compression spring assemblies.
  • the object is solved by the subject matter of claim 1.
  • the subordinate claims give advantageous embodiments again.
  • the proposed clutch disc includes a rotatable about an axis of rotation
  • each compression spring packs consisting of at least one incorporated between circumferential attacks of the recesses and cutouts under bias outer spring and accommodated in this, shorter inner spring, which are compressed at a rotation of the input and output part and in cooperation with a at least over a partial angle of the rotation effective friction device form a torsional vibration damper.
  • the slopes of the turns of these are in the same direction, ie formed with the same sign.
  • the inner spring is flared at its end forming the positive connection. In this case, an end turn of the inner spring can at least partially radially overlap an end turn of the radially directly adjacent outer spring and thus form the positive connection.
  • the radially inner outer spring with a diameter that is constant over its length so as not to widen the installation space of the latter relative to the radially outer spring.
  • the end turn of the immediately adjacent outer spring can be bevelled radially inward with a diameter which opens in the direction of the stop.
  • an inner periphery of the outer outer spring may be formed with a constant diameter over its length.
  • a radial gap can be set with a radial gap that remains constant over its length, so that, in particular under the influence of centrifugal force, friction can be reduced with friction hysteresis and wear occurring.
  • Figure 1 is a partially sectioned partial view of a clutch disc with a view of a
  • FIG. 2 shows a view of the partially cut-together compression spring packet of FIG. 1,
  • Figure 3 is a view of the inner spring
  • Figure 4 is a partially sectioned view of the inner spring radially immediately adjacent outer springs.
  • FIG. 1 shows a section of the clutch disc 1 which is essential for the invention, as is otherwise known from its construction of the prior art, for example from the aforementioned DE 102 18 472 A1.
  • the clutch disc 1 are distributed over the circumference preferably three or four cutouts 5 and recesses 6 mutually aligned in the output part 3 and this in the form of two disc parts 4 flanked on both sides input part 2 is introduced, in which the compression spring 7 are housed.
  • the compression spring packs 7 act as energy storage, which store energy during compression and release again during decompression.
  • the compression spring assemblies 7 are formed from the two outer springs 8, 9 and the inner spring 10.
  • the two outer springs 8, 9 are preferably on the peripheral side stops 1 1, 12, 13, 14 of the recesses 6 and cutouts 5 or have little play on these and thus form a first damper stage at small angles of rotation of input and output part.
  • the inner spring 10 is shorter than the outer spring formed 8 and 9 and is compressed by the cutouts 5 and recesses 6 only larger angles of rotation and then forms in cooperation with the outer springs 8, 9 a second damper stage with higher rigidity.
  • a positive connection between the inner spring 10 and the outer spring 8 is set.
  • the turns 21 of the inner spring 10 have gradients m3, which are aligned in the same direction as the pitch m2 of the outer spring 9.
  • inner diameter Di and outer diameter D A are substantially constant along the axis of action.
  • Figure 2 shows the compression spring assembly 7 with the outer springs 8, 9 and the inner spring 10.
  • the Endwindungen 18 are flared at the front end and engage at least partially in the constant diameter in their turns 17th the outer spring 9 radially.
  • the end turn 19 of the outer spring 9 to the stops 1 1, 13 ( Figure 1) widening gate 20, in which the last end turn 18 of the inner spring dips radially.
  • FIG. 4 shows the outer spring 9 with a constant outside diameter D A and in the region of the end turns 19 on its inner circumference a conically widened area ⁇ , which is formed at the end by the gate 20.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

The invention relates to a clutch disc comprising an input part which can be rotated about a rotational axis, has friction linings arranged on the outer radius and at least three window-type recesses distributed around the periphery, said disc also comprising an output part which can be rotated through a restricted angle about the rotational axis relative to the input part and which has a hub and cut-out sections that are situated radially outside the hub, are distributed around the periphery and lie flush with the recesses in the non-rotated position of the input part and the output part. Compression spring bundles consisting of at least one outer spring which is pre-tensioned between stops of the recesses and cut-out sections and of a shorter inner spring that is housed in said outer spring are held in each recess and cut-out section. In order to provide a two-stage characteristic with increased spring capacity, a high stop moment and low inherent friction of the compression spring bundles, two outer springs with opposite pitches are displaceably nested counter to their effective directions and the inner spring and one outer spring are secured on top of one another in an interlocked manner in the effective direction in the region of a stop.

Description

FEDERPACKET FÜR KUPPLUNGSSCHEIBE  SPRING PACK FOR CLUTCH DISC
Die Erfindung betrifft eine Kupplungsscheibe mit einem um eine Drehachse verdrehbaren Eingangsteil mit radial außen angeordneten Reibbelägen und zumindest drei über den Umfang verteilten fensterförmigen Ausnehmungen sowie einem gegenüber dem Eingangsteil in einem begrenzten Winkel um die Drehachse relativ verdrehbaren Ausgangsteil mit einer Nabe und radial außerhalb der Nabe angeordneten, über den Umfang verteilten, mit den Ausnehmungen im nicht verdrehten Zustand von Eingangsteil und Ausgangsteil fluchtenden Ausschnitten, wobei in den Ausnehmungen und Ausschnitten jeweils Druckfederpakete bestehend aus zumindest einer zwischen Anschlägen der Ausnehmungen und Ausschnitte unter Vorspannung eingebauten Außenfeder und einer in dieser untergebrachten, kürzeren Innenfeder aufgenommen sind. The invention relates to a clutch disc having a rotatable about an axis input part with radially outer friction linings and at least three circumferentially distributed window-shaped recesses and a relation to the input part at a limited angle about the rotational axis rotatable relative to the output part with a hub and arranged radially outside the hub , Distributed over the circumference, aligned with the recesses in the non-rotated state of the input part and output part cutouts, wherein in the recesses and cutouts each compression spring assemblies consisting of at least one between stops of the recesses and cutouts under bias built-in outer spring and housed in this, shorter inner spring are included.
Gattungsgemäße Kupplungsscheiben sind beispielsweise aus der DE 102 18 472 A1 bekannt und können eine mehrstufige Kennlinie der Druckfederpakete dadurch aufweisen, dass die Außenfedern unter Vorspannung in eingangsseitigen und ausgangsseitigen Ausnehmungen oder Ausschnitten unter Vorspannung, das heißt, ohne Freiwinkel aufgenommen sind und daher bei Verdrehung von Eingangs- und Ausgangsteil gegeneinander sofort beaufschlagt werden, während die in der Außenfeder untergebrachte Innenfeder kürzer als die Außenfeder ausgebildet ist und damit erst bei größeren Verdrehwinkeln von entsprechenden Beaufschlagungsbereichen wie Umfangsbegrenzungen der Ausschnitte beziehungsweise Ausnehmungen beaufschlagt wird. Generic clutch discs are known for example from DE 102 18 472 A1 and may have a multi-stage characteristic of the compression spring assemblies in that the outer springs under bias in input side and output side recesses or cutouts under bias, that is, are recorded without clearance angle and therefore upon rotation of input - And starting part against each other are acted upon immediately, while the accommodated in the outer spring inner spring is shorter than the outer spring and thus only at larger angles of rotation of corresponding Beaufschlagungsbereichen such as circumferential boundaries of the cutouts or recesses is applied.
Werden in derartigen Kupplungsscheiben bei kleinen Lasten und damit noch im schwimmenden Zustand der Innenfeder Schwingungen induziert, kann die Innenfeder zu Schwingungen angeregt werden, die sich in einem Pendeln der Stirnseiten der Innenfeder zwischen den Beaufschlagungsbereichen äußern kann und zu unerwünschter Geräuschentwicklung der Kupplungsscheibe führt. Außerdem kann durch diese Schwingungen Verschleiß der Federn durch entsprechende Berührung untereinander auftreten. If vibrations are induced in such clutch plates at low loads and thus still in the floating state of the inner spring, the inner spring can be excited to oscillate, which can manifest itself in a pendulum of the end faces of the inner spring between the Beaufschlagungsbereichen and leads to unwanted noise of the clutch disc. In addition, by these vibrations wear of the springs can occur by appropriate contact with each other.
Aus der DE 10 2010 006 053 A1 ist eine Kupplungsscheibe bekannt, bei der die Innenfeder gegenüber der Außenfeder mittels eines Formschlusses fixiert ist. From DE 10 2010 006 053 A1 discloses a clutch disc is known in which the inner spring is fixed relative to the outer spring by means of a positive connection.
Aufgabe der Erfindung ist die Weiterbildung des Stands der Technik mit erhöhter Federkapazität bei geringer Eigenreibung der Druckfederpakete. Die Aufgabe wird durch den Gegenstand des Anspruchs 1 gelöst. Die diesem untergeordneten Ansprüche geben vorteilhafte Ausführungsformen wieder. The object of the invention is the development of the prior art with increased spring capacity with low intrinsic friction of the compression spring assemblies. The object is solved by the subject matter of claim 1. The subordinate claims give advantageous embodiments again.
Die vorgeschlagene Kupplungsscheibe enthält ein um eine Drehachse verdrehbares The proposed clutch disc includes a rotatable about an axis of rotation
Eingangsteil mit radial außen angeordneten Reibbelägen und zumindest drei über den Umfang verteilten fensterförmigen Ausnehmungen sowie ein gegenüber dem Eingangsteil in einem begrenzten Winkel um die Drehachse relativ verdrehbares Ausgangsteil mit einer Nabe und radial außerhalb der Nabe angeordneten, über den Umfang verteilten, mit den Ausnehmungen im nicht verdrehten Zustand von Eingangsteil und Ausgangsteil fluchtenden Ausschnitten. Hierbei sind in den Ausnehmungen und Ausschnitten jeweils Druckfederpakete bestehend aus zumindest einer zwischen umfangsseitigen Anschlägen der Ausnehmungen und Ausschnitte unter Vorspannung eingebauten Außenfeder und einer in dieser untergebrachten, kürzeren Innenfeder aufgenommen, die bei einer Verdrehung von Ein- und Ausgangsteil komprimiert werden und in Zusammenwirkung mit einer zumindest über einen Teilwinkel der Verdrehung wirksamen Reibeinrichtung einen Torsionsschwingungsdämpfer bilden. Zur Erhöhung der Federkapazität sind zwei Außenfedern mit entgegengesetzter Steigung entgegen ihrer Wirkungsrichtung verlagerbar ineinander geschachtelt. Infolge der bezüglich ihrer Vorzeichen entgegengesetzten Steigungen der Außenfedern werden ein Ineinandergreifen der Windungen der Außenfedern und eine innere Reibung der Druckfederpakete verringert. Im Weiteren wird durch einen Formschluss zwischen der Innenfeder und der bevorzugt direkt radial benachbarten Außenfeder in Wirkungsrichtung dieser im Bereich eines Anschlags eine Fixierung dieser aufeinander erzielt, so dass die Innenfeder am Anschlag gehalten wird. Entrance part with radially arranged outside friction linings and at least three circumferentially distributed window-shaped recesses and arranged opposite the input part at a limited angle about the rotation axis rotatable output member with a hub and radially outside the hub, distributed over the circumference, with the recesses in not twisted state of input part and output part aligned cutouts. Here are in the recesses and cutouts each compression spring packs consisting of at least one incorporated between circumferential attacks of the recesses and cutouts under bias outer spring and accommodated in this, shorter inner spring, which are compressed at a rotation of the input and output part and in cooperation with a at least over a partial angle of the rotation effective friction device form a torsional vibration damper. To increase the spring capacity, two outer springs with opposite pitch are nested against each other in the direction opposite to their direction of action. Due to the opposite in their signs slopes of the outer springs meshing of the turns of the outer springs and internal friction of the compression spring packs are reduced. In addition, by a positive connection between the inner spring and the preferably directly radially adjacent outer spring in the direction of effect of this in the region of a stop fixing this achieved each other, so that the inner spring is held against the stop.
Zur Ausbildung eines gewinde- und gegengewindeähnlichen Formschlusses zwischen der Innenfeder und der radial unmittelbar benachbarten Außenfeder sind die Steigungen der Windungen dieser in dieselbe Richtung, also mit demselben Vorzeichen ausgebildet. Zur Begrenzung des Formschlusses auf die Nähe des Anschlages, um eine weitgehende unabhängige Komprimierung der Windungen der Innenfeder und der Außenfeder zu erzielen, ist die Innenfeder an ihrem den Formschluss bildenden Ende konisch erweitert. Hierbei kann eine Endwindung der Innenfeder eine Endwindung der dieser radial unmittelbar benachbarten Außenfeder zumindest teilweise radial übergreifen und damit den Formschluss bilden. To form a thread-and counter-thread-like positive connection between the inner spring and the radially immediately adjacent outer spring, the slopes of the turns of these are in the same direction, ie formed with the same sign. To limit the positive connection to the vicinity of the stop in order to achieve a substantial independent compression of the turns of the inner spring and the outer spring, the inner spring is flared at its end forming the positive connection. In this case, an end turn of the inner spring can at least partially radially overlap an end turn of the radially directly adjacent outer spring and thus form the positive connection.
Es ist in vorteilhafter Weise vorgesehen, die radial innere Außenfeder mit über deren Länge konstantem Durchmesser auszubilden, um den Bauraum dieser gegenüber der radial äußeren Außenfeder nicht zu erweitern. Gleichzeitig kann es vorteilhaft sein, die radial innere Au- ßenfeder im Bereich des Formschlusses mit der Innenfeder konisch zu erweitern, um den Formschluss verbessert auszubilden, wenn die Außenfeder beispielsweise in ähnlicher Weise zu dem Anschlag hin konisch erweitert ist. Um diesen Konflikt zu lösen, kann die Endwindung der unmittelbar benachbarten Außenfeder radial innen mit in Richtung des Anschlags öffnendem Durchmesser angeschrägt sein. It is advantageously provided to form the radially inner outer spring with a diameter that is constant over its length so as not to widen the installation space of the latter relative to the radially outer spring. At the same time it may be advantageous to use the radially inner Au ßenfeder in the region of the positive connection with the inner spring to widen conically to form the positive locking form when the outer spring, for example, in a similar manner to the stop flared. In order to solve this conflict, the end turn of the immediately adjacent outer spring can be bevelled radially inward with a diameter which opens in the direction of the stop.
Im Weiteren kann ein Innenumfang der äußeren Außenfeder mit über deren Länge konstantem Durchmesser ausgebildet sein. Hierdurch kann zwischen den Außenfedern ein Radialspalt mit über deren Länge gleich bleibendem Radialspalt eingestellt werden, so dass insbesondere unter Fliehkrafteinwirkung eine Reibung mit einer auftretenden Reibhysterese sowie Verschleiß vermindert werden kann. Furthermore, an inner periphery of the outer outer spring may be formed with a constant diameter over its length. As a result, between the outer springs, a radial gap can be set with a radial gap that remains constant over its length, so that, in particular under the influence of centrifugal force, friction can be reduced with friction hysteresis and wear occurring.
Die Erfindung wird anhand des in den Figuren 1 bis 4 dargestellten Ausführungsbeispiels näher erläutert. Dabei zeigen: The invention will be explained in more detail with reference to the embodiment shown in Figures 1 to 4. Showing:
Figur 1 eine teilgeschnittene Teilansicht einer Kupplungsscheibe mit Sicht auf ein  Figure 1 is a partially sectioned partial view of a clutch disc with a view of a
Druckfederpaket,  Pressure springs,
Figur 2 eine Ansicht auf das teilweise angeschnittene Druckfederpaket der Figur 1 , FIG. 2 shows a view of the partially cut-together compression spring packet of FIG. 1,
Figur 3 eine Ansicht der Innenfeder Figure 3 is a view of the inner spring
und and
Figur 4 eine teilgeschnittene Ansicht der der Innenfeder radial unmittelbar benachbarten Außenfedern.  Figure 4 is a partially sectioned view of the inner spring radially immediately adjacent outer springs.
Die Figur 1 zeigt einen für die Erfindung wesentlichen Ausschnitt der Kupplungsscheibe 1 , wie sie ansonsten aus ihrem Aufbau aus dem Stand der Technik, beispielsweise aus der zuvor genannten DE 102 18 472 A1 bekannt ist. In der Kupplungsscheibe 1 sind über den Umfang verteilt vorzugsweise drei oder vier Ausschnitte 5 und Ausnehmungen 6 zueinander fluchtend in dem Ausgangsteil 3 und dem dieses in Form von zwei Scheibenteilen 4 beidseitig flankierenden Eingangsteils 2 eingebracht, in denen die Druckfederpakete 7 untergebracht sind. Bei einer Relativverdrehung des Ausgangsteils 3 und des Eingangsteils 2 wirken die Druckfederpakete 7 als Energiespeicher, die bei Kompression Energie speichern und bei Dekompression wieder abgeben. Die Druckfederpakete 7 sind aus den beiden Außenfedern 8, 9 und der Innenfeder 10 gebildet. Hierbei liegen die beiden Außenfedern 8, 9 bevorzugt an den umfangs- seitigen Anschlägen 1 1 , 12, 13, 14 der Ausnehmungen 6 und Ausschnitten 5 an oder weisen nur geringes Spiel zu diesen auf und bilden damit eine erste Dämpferstufe bei kleinen Verdrehwinkeln von Eingangs- und Ausgangsteil. Die Innenfeder 10 ist kürzer als die Außenfe- dem 8, 9 ausgebildet und wird von den Ausschnitten 5 und Ausnehmungen 6 erst größeren Verdrehwinkeln komprimiert und bildet dann in Zusammenwirkung mit den Außenfedern 8, 9 eine zweite Dämpferstufe mit höherer Steifigkeit. Zur Fixierung der Innenfeder 10 an den Anschlägen 1 1 , 13 ist zwischen der Innenfeder 10 und der Außenfeder 8 ein Formschluss eingestellt. FIG. 1 shows a section of the clutch disc 1 which is essential for the invention, as is otherwise known from its construction of the prior art, for example from the aforementioned DE 102 18 472 A1. In the clutch disc 1 are distributed over the circumference preferably three or four cutouts 5 and recesses 6 mutually aligned in the output part 3 and this in the form of two disc parts 4 flanked on both sides input part 2 is introduced, in which the compression spring 7 are housed. In a relative rotation of the output part 3 and the input part 2, the compression spring packs 7 act as energy storage, which store energy during compression and release again during decompression. The compression spring assemblies 7 are formed from the two outer springs 8, 9 and the inner spring 10. Here, the two outer springs 8, 9 are preferably on the peripheral side stops 1 1, 12, 13, 14 of the recesses 6 and cutouts 5 or have little play on these and thus form a first damper stage at small angles of rotation of input and output part. The inner spring 10 is shorter than the outer spring formed 8 and 9 and is compressed by the cutouts 5 and recesses 6 only larger angles of rotation and then forms in cooperation with the outer springs 8, 9 a second damper stage with higher rigidity. For fixing the inner spring 10 to the stops 1 1, 13, a positive connection between the inner spring 10 and the outer spring 8 is set.
Zur Verminderung von Reibung zwischen den Außenfedern 8, 9 ist zwischen dem To reduce friction between the outer springs 8, 9 is between the
Innenumfang Ui mit dem Innendurchmesser Di der Außenfeder 8 und dem Außenumfang UA mit dem Außendurchmesser DA das Radialspiel 15 eingestellt. Des Weiteren sind die Steigungen m1 , m2 der Windungen 16, 17 der Außenfedern 8, 9 in entgegengesetzte Richtung, also gegenüber der Senkrechten zur Wirkachse x des Druckfederpakets 7 mit unterschiedlichem Vorzeichen ausgerichtet, so dass ein Einhaken insbesondere unter Fliehkrafteinfluss erschwert wird. Die Windungen 21 der Innenfeder 10 weisen Steigungen m3 auf, die in dieselbe Richtung wie die Steigung m2 der Außenfeder 9 ausgerichtet sind. Im Übrigen sind Innendurchmesser Di und Außendurchmesser DA entlang der Wirkachse im Wesentlichen konstant. Inner circumference Ui with the inner diameter Di of the outer spring 8 and the outer circumference U A with the outer diameter D A, the radial clearance 15 set. Furthermore, the gradients m1, m2 of the turns 16, 17 of the outer springs 8, 9 are aligned in the opposite direction, ie with respect to the perpendicular to the effective axis x of the compression spring package 7 with different signs, so that hooking is made more difficult, especially under the influence of centrifugal force. The turns 21 of the inner spring 10 have gradients m3, which are aligned in the same direction as the pitch m2 of the outer spring 9. Incidentally, inner diameter Di and outer diameter D A are substantially constant along the axis of action.
Figur 2 zeigt das Druckfederpaket 7 mit den Außenfedern 8, 9 und der Innenfeder 10. Zur Ausbildung des Formschlusses mit der dieser radial unmittelbar benachbarten Außenfeder 9 sind die Endwindungen 18 an deren Stirnseite konisch erweitert und greifen zumindest teilweise in die in ihrem Durchmesser konstanten Windungen 17 der Außenfeder 9 radial ein. Zur Verbesserung der radialen Überschneidung weist die Endwindung 19 der Außenfeder 9 den sich zu den Anschlägen 1 1 , 13 (Figur 1 ) erweiternden Anschnitt 20 auf, in den die letzte Endwindung 18 der Innenfeder radial eintaucht. Figure 2 shows the compression spring assembly 7 with the outer springs 8, 9 and the inner spring 10. To form the positive connection with this radially immediately adjacent outer spring 9, the Endwindungen 18 are flared at the front end and engage at least partially in the constant diameter in their turns 17th the outer spring 9 radially. To improve the radial overlap, the end turn 19 of the outer spring 9 to the stops 1 1, 13 (Figure 1) widening gate 20, in which the last end turn 18 of the inner spring dips radially.
Die Figur 3 zeigt eine Ansicht der Innenfeder 10 mit gegenüber dem Durchmesser der Windungen 21 konisch erweiterten Endwindungen 18. 3 shows a view of the inner spring 10 with respect to the diameter of the turns 21 conically widened end turns 18th
Die Figur 4 zeigt die Außenfeder 9 mit konstantem Außendurchmesser DA und im Bereich der Endwindungen 19 an deren Innenumfang einen konisch im Winkel ß erweiterten Bereich, der endseitig durch den Anschnitt 20 ausgebildet ist. Bezugszeichenliste FIG. 4 shows the outer spring 9 with a constant outside diameter D A and in the region of the end turns 19 on its inner circumference a conically widened area β, which is formed at the end by the gate 20. LIST OF REFERENCE NUMBERS
Kupplungsscheibe clutch disc
Eingangsteil  introductory
Ausgangsteil  output portion
Scheibenteil  disk part
Ausschnitt  neckline
Ausnehmung  recess
Druckfederpaket  Pressure springs
Außenfeder  outside spring
Außenfeder  outside spring
10 Innenfeder  10 inner spring
1 1 Anschlag  1 1 stop
12 Anschlag  12 stop
13 Anschlag  13 stop
14 Anschlag  14 stop
15 Radialspiel  15 radial play
16 Windung  16 turn
17 Windung  17 turn
18 Endwindung  18 final turn
19 Endwindung  19 final turn
20 Anschnitt  20 bleed
21 Windung  21 turn
DA Außendurchmesser D A outer diameter
D, Innendurchmesser  D, inner diameter
m1 Steigung m1 slope
m2 Steigung m2 slope
m3 Steigung m3 slope
UA Außenumfang U A outer circumference
U, Innenumfang  U, inner circumference
X Wirkachse  X axis of action
ß Winkel ß angle

Claims

Patentansprüche claims
1 . Kupplungsscheibe (1 ) mit einem um eine Drehachse verdrehbaren Eingangsteil (2) mit radial außen angeordneten Reibbelägen und zumindest drei über den Umfang verteilten fensterförmigen Ausnehmungen (6) sowie einem gegenüber dem Eingangsteil (2) in einem begrenzten Winkel um die Drehachse relativ verdrehbaren Ausgangsteil (3) mit einer Nabe und radial außerhalb der Nabe angeordneten, über den Umfang verteilten, mit den Ausnehmungen (6) im nicht verdrehten Zustand von Eingangsteil (2) und Ausgangsteil (3) fluchtenden Ausschnitten (5), wobei in den Ausnehmungen (6) und Ausschnitten (5) jeweils Druckfederpakete (7) bestehend aus zumindest einer zwischen umfangsseitigen Anschlägen (1 1 , 12, 13, 14) der Ausnehmungen (6) und Ausschnitte (5) eingebauten Außenfeder (8, 9) und einer in dieser untergebrachten, kürzeren Innenfeder (10) aufgenommen sind, dadurch gekennzeichnet, dass zwei Außenfedern (8, 9) mit entgegengesetzter Steigung (m1 , m2) entgegen ihrer Wirkungsrichtung verlagerbar ineinander geschachtelt und die Innenfeder (10) und eine Außenfeder (9) mittels eines Formschlusses in Wirkungsrichtung dieser im Bereich eines Anschlags (1 1 , 13) aufeinander fixiert sind. 1 . Clutch disc (1) having an input part (2) which can be rotated about an axis of rotation and has friction linings arranged radially on the outside and at least three window-shaped recesses (6) distributed over the circumference and an output part (2) which rotates relative to the input part (2) at a limited angle about the axis of rotation ( 3) arranged with a hub and radially outside the hub, distributed over the circumference, with the recesses (6) in the non-rotated state of the input part (2) and output part (3) aligned cutouts (5), wherein in the recesses (6) and cutouts (5) each compression spring packs (7) consisting of at least one between peripheral stops (1 1, 12, 13, 14) of the recesses (6) and cutouts (5) built-in outer spring (8, 9) and housed in this, shorter inner spring (10) are added, characterized in that two outer springs (8, 9) with opposite pitch (m1, m2) verlagerb against their direction of action Ar nested in each other and the inner spring (10) and an outer spring (9) by means of a positive connection in the direction of action of these in the region of a stop (1 1, 13) are fixed to each other.
2. Kupplungsscheibe (1 ) nach Anspruch 1 , dadurch gekennzeichnet, dass die Innenfeder (10) eine Steigung (m3) in dieselbe Richtung wie die radial unmittelbar benachbarte Außenfeder (9) aufweist.  2. clutch disc (1) according to claim 1, characterized in that the inner spring (10) has a slope (m3) in the same direction as the radially immediately adjacent outer spring (9).
3. Kupplungsscheibe (1 ) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Innenfeder (10) an ihrem den Formschluss bildenden Ende konisch erweitert ist.  3. clutch disc (1) according to claim 1 or 2, characterized in that the inner spring (10) is flared at its end forming the positive connection.
4. Kupplungsscheibe (1 ) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass eine Endwindung (18) der Innenfeder (10) eine Endwindung (19) der dieser radial unmittelbar benachbarten Außenfeder (8) zumindest teilweise radial übergreift.  4. clutch disc (1) according to one of claims 1 to 3, characterized in that an end turn (18) of the inner spring (10) an end turn (19) of this radially immediately adjacent outer spring (8) engages over at least partially radially.
5. Kupplungsscheibe (1 ) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die radial innere Außenfeder (9) mit über deren Länge konstantem Außendurchmesser (DA) ausgebildet ist. 5. clutch disc (1) according to one of claims 1 to 4, characterized in that the radially inner outer spring (9) is formed over its length constant outer diameter (D A ).
6. Kupplungsscheibe (1 ) nach Anspruch 5, dadurch gekennzeichnet, dass die radial innere Außenfeder (9) im Bereich des Formschlusses mit der Innenfeder (10) konisch erweitert ist.  6. clutch disc (1) according to claim 5, characterized in that the radially inner outer spring (9) in the region of the positive connection with the inner spring (10) is flared.
7. Kupplungsscheibe (1 ) nach Anspruch 6, dadurch gekennzeichnet, dass die Endwindung (19) der unmittelbar benachbarten Außenfeder (9) radial innen mit in Richtung des Anschlags (1 1 , 13) öffnendem Durchmesser angeschnitten ist. 7. clutch disc (1) according to claim 6, characterized in that the Endwindung (19) of the immediately adjacent outer spring (9) radially inwardly in the direction of the stopper (1 1, 13) opening diameter is cut.
8. Kupplungsscheibe (1 ) nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass ein Innenumfang (Ui) der äußeren Außenfeder (8) mit über deren Länge konstantem Innendurchmesser (Di) ausgebildet ist. 8. clutch disc (1) according to one of claims 5 to 7, characterized in that an inner circumference (Ui) of the outer outer spring (8) with over its length constant inner diameter (Di) is formed.
9. Kupplungsscheibe (1 ) nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, dass zwischen den Außenfedern (8,9) ein Radialspalt (15) eingestellt ist.  9. clutch disc (1) according to one of claims 5 to 8, characterized in that between the outer springs (8.9) a radial gap (15) is set.
PCT/DE2013/200233 2012-10-23 2013-10-17 Spring bundle for clutch disc WO2014063699A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE112013005108.7T DE112013005108A5 (en) 2012-10-23 2013-10-17 Spring package for clutch disc
BR112015009082A BR112015009082A2 (en) 2012-10-23 2013-10-17 clutch disc
CN201380055119.2A CN104755798B (en) 2012-10-23 2013-10-17 Spring set for clutch disc
EP13805252.7A EP2912337A1 (en) 2012-10-23 2013-10-17 Spring bundle for clutch disc

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012219300 2012-10-23
DE102012219300.6 2012-10-23

Publications (1)

Publication Number Publication Date
WO2014063699A1 true WO2014063699A1 (en) 2014-05-01

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ID=49765237

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PCT/DE2013/200233 WO2014063699A1 (en) 2012-10-23 2013-10-17 Spring bundle for clutch disc

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EP (1) EP2912337A1 (en)
CN (1) CN104755798B (en)
BR (1) BR112015009082A2 (en)
DE (2) DE102013221103A1 (en)
WO (1) WO2014063699A1 (en)

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DE102014216807B4 (en) 2014-08-25 2023-06-29 Schaeffler Technologies AG & Co. KG centrifugal pendulum

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DE112015002646A5 (en) * 2014-06-03 2017-02-16 Schaeffler Technologies AG & Co. KG Device for transmitting torque
DE102014215500A1 (en) 2014-08-06 2016-02-11 Schaeffler Technologies AG & Co. KG torsional vibration damper
DE102016125300A1 (en) * 2016-12-22 2018-06-28 Schaeffler Technologies AG & Co. KG Spring package and coupling device
CN107882903A (en) * 2017-12-13 2018-04-06 毕克礼斯精密部件（太仓）有限公司 A kind of arc cluster spring of the avette tail end connection of goose
CN108049958B (en) * 2018-01-23 2024-07-30 浙江耐士伦机械有限公司 Electromagnetic fan clutch assembly of speed-adjustable shock-absorbing automobile engine
DE102019209997A1 (en) * 2019-07-08 2021-01-14 Zf Friedrichshafen Ag Torsional vibration damper
CN114286902B (en) * 2019-12-04 2023-10-20 舍弗勒技术股份两合公司 Vibration damping structure with two-stage damping, vehicle vibration damper and clutch driven disc

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Also Published As

Publication number Publication date
DE112013005108A5 (en) 2015-07-02
CN104755798A (en) 2015-07-01
DE102013221103A1 (en) 2014-04-24
BR112015009082A2 (en) 2017-07-04
EP2912337A1 (en) 2015-09-02
CN104755798B (en) 2017-05-17

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