WO2015090314A1 - Ensemble ressort hélicoïdal - Google Patents

Ensemble ressort hélicoïdal Download PDF

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Publication number
WO2015090314A1
WO2015090314A1 PCT/DE2014/200708 DE2014200708W WO2015090314A1 WO 2015090314 A1 WO2015090314 A1 WO 2015090314A1 DE 2014200708 W DE2014200708 W DE 2014200708W WO 2015090314 A1 WO2015090314 A1 WO 2015090314A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil spring
spring
coil
spring assembly
helical
Prior art date
Application number
PCT/DE2014/200708
Other languages
German (de)
English (en)
Inventor
Júlio Cordeiro da Silva
Guilherme CAMARA
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
Publication of WO2015090314A1 publication Critical patent/WO2015090314A1/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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/047—Wound springs characterised by varying pitch
    • 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
    • F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/02—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
    • F16F3/04—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of wound 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
    • 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
    • F16F15/131—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 the rotating system comprising two or more gyratory masses
    • F16F15/133—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 the rotating system comprising two or more gyratory masses using springs as elastic members, e.g. metallic springs
    • F16F15/134—Wound springs

Definitions

  • the invention relates to a coil spring arrangement for a torsional vibration damper, in particular a clutch disc.
  • the coil spring arrangement is used for example in window openings of two mutually rotatable disc arrangements of a torsion damper of a clutch disc, as described for example in German Patent DE 195 15 170 C2.
  • a comparable clutch disc for a motor vehicle friction clutch with coil springs is described in German Patent DE 40 28 616 C2.
  • the object of the invention is to provide a coil spring arrangement for a torsional vibration damper, in particular a clutch disc, which enables a high degree of damping comfort in different operating states and / or can be produced cost-effectively.
  • a helical spring arrangement for a torsional vibration damper in particular a clutch disc
  • the helical spring arrangement has at least two helical spring sections with different spring stiffnesses.
  • different coil springs can be connected in series or in parallel.
  • at least two helical spring sections with different spring stiffnesses are combined in a single helical spring arrangement.
  • a preferred embodiment of the coil spring assembly is characterized in that the coil spring assembly for representing the at least two coil spring sections with the different spring stiffnesses comprises two coil springs, which are firmly connected to each other at one end.
  • the two coil springs can be connected to one another in a material-locking manner.
  • springs can also be otherwise connected with the aid of suitable fastening means, for example with a positive fit.
  • a further preferred embodiment of the helical spring arrangement is characterized in that the helical spring arrangement for the representation of the at least two helical spring sections with the different spring stiffnesses comprises two helical springs which are integrally connected to one another. As a result, the handling and assembly of the coil spring assembly are simplified.
  • a further preferred embodiment of the coil spring assembly is characterized in that a larger coil spring portion has a relatively low spring stiffness.
  • the length of the larger coil spring section can be adapted individually to the respective requirements.
  • a further preferred embodiment of the helical spring arrangement is characterized in that a smaller helical spring section has a relatively high spring rigidity.
  • the length of the smaller coil spring section can be adapted individually to the respective requirements.
  • the larger coil spring portion is about twice as long as the smaller coil spring portion.
  • coil spring assembly is characterized in that inactive spring coils are distributed symmetrically on the ends of the coil spring assembly. This distribution has proved to be particularly advantageous in the context of the present invention.
  • a further preferred embodiment of the helical spring arrangement is characterized in that the helical spring sections each have at least two active spring coils.
  • the two coil spring sections have more than two active spring coils.
  • the number of active spring coils of the coil spring sections can be adapted individually to the respective requirements.
  • the coil spring assembly has a progressive spring characteristic.
  • the progressive spring characteristic can be achieved by combining the two derabroughe with different spring stiffness particularly advantageous cost.
  • the invention further relates to a torsional vibration damper with a previously described coil spring assembly.
  • the torsional vibration damper is advantageously integrated in a clutch disc, as disclosed, for example, in German Offenlegungsschrift DE 10 2009 029 723 A1.
  • the invention further relates to a clutch writing with such a torsional vibration damper.
  • the clutch disc for example, belongs to a friction clutch as disclosed in International Publication WO 2009/006869 A1.
  • Figure 1 is a partial sectional view of a clutch disc with a torsional vibration damper, which comprises a coil spring assembly according to the invention and
  • Figure 2 shows the coil spring assembly according to the invention together with a spring characteristic in a Cartesian coordinate diagram.
  • FIG. 1 shows a partial section of a clutch disk 1 with a torsional vibration damper 3.
  • the clutch disc 1 is, for example, a clutch disc, as disclosed in German Offenlegungsschrift DE 10 2009 029 723 A1.
  • the clutch disc 1, for example, belongs to a friction clutch as disclosed in International Publication WO 2009/006869 A1.
  • the torsional vibration damper 3 comprises two coil spring assemblies 11 and 12, which are arranged in window openings of relatively rotatable disk bodies of the clutch disk 1.
  • the coil spring assembly 1 1 comprises in the illustrated embodiment, two coil springs 14 and 15.
  • the coil springs 14 and 15 have the same length, but different coil diameters and Windungsdicken.
  • the coil spring assembly 12 has the same length as the two coil springs 14 and 15 but a smaller coil diameter. The coil diameters are selected so that the helical spring arrangement 12 is arranged in the coil spring 15, which in turn is arranged in the helical spring 14.
  • the coil spring assembly 12 alone is enlarged and shown together with a spring characteristic 20 in a Cartesian coordinate diagram.
  • the Cartesian coordinate diagram comprises an x-axis 21 and a y-axis 22.
  • the x-axis 21 plots a spring travel in a suitable unit of length.
  • On the y-axis 22, a spring force is applied in a suitable power unit.
  • helical spring arrangement 12 is designed as a helical spring with a constant wall thickness 23.
  • the length of the coil spring or coil spring assembly 12 is indicated by a double arrow 24.
  • double arrows 25 and 26 it is indicated that the helical spring arrangement or helical spring 12 has two helical spring sections with different spring stiffnesses.
  • the coil spring portion 25 is about twice as large as the coil spring portion 26.
  • the coil spring portion 26 has a higher rigidity than the coil spring portion 25.
  • the coil spring assembly 12 with the two coil spring sections 25 and 26 is executed in the illustrated embodiment as a single helical spring. Therefore, will the coil spring assembly 12 also referred to as a coil spring with respect to the illustrated embodiment.
  • the coil spring assembly 12 may also include two coil springs, which are connected to each other, for example, a material fit.
  • the two coil spring portions 25 and 26 can also be otherwise, for example, positively connected by suitable fastening means firmly together.

Landscapes

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

Abstract

L'invention concerne un ensemble ressort hélicoïdal (12) pour un amortisseur de vibrations de torsion, notamment d'un disque d'embrayage (1). L'invention est caractérisée en ce que l'ensemble ressort hélicoïdal présente au moins deux parties de ressort hélicoïdal (25, 26) possédant des raideurs différentes.
PCT/DE2014/200708 2013-12-18 2014-12-12 Ensemble ressort hélicoïdal WO2015090314A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013226459 2013-12-18
DE102013226459.3 2013-12-18

Publications (1)

Publication Number Publication Date
WO2015090314A1 true WO2015090314A1 (fr) 2015-06-25

Family

ID=52354649

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/200708 WO2015090314A1 (fr) 2013-12-18 2014-12-12 Ensemble ressort hélicoïdal

Country Status (1)

Country Link
WO (1) WO2015090314A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495256A1 (fr) * 1980-12-03 1982-06-04 Valeo Dispositif amortisseur de torsion, en particulier friction d'embrayage, notamment pour vehicule automobile
US5791638A (en) * 1996-09-13 1998-08-11 Bal Seal Engineering Company, Inc. Coil spring with ends adapted for coupling without welding
DE19515170C2 (de) 1994-04-25 2002-02-28 Exedy Corp Torsionsdämpfer für eine Kupplungsscheibe
DE4028616C2 (de) 1990-09-08 2002-09-12 Zf Sachs Ag Kupplungsscheibe mit identischen Führungsteilen zur Ansteuerung der Schraubenfedern für den Leerlaufbereich
WO2009006869A1 (fr) 2007-07-05 2009-01-15 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Embrayage à friction doté d'un disque d'embrayage pour la transmission de couples de rotation
DE102009029723A1 (de) 2008-07-14 2010-01-21 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Kupplungsscheibe
DE102008043250A1 (de) * 2008-10-29 2010-05-06 Zf Friedrichshafen Ag Torsionsschwingungsdämpferanordnung, insbesondere für eine hydrodynamische Kopplungseinrichtung
CH706277A1 (de) * 2012-03-30 2013-09-30 Baumann Federn Ag Verbindung von Federenden.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495256A1 (fr) * 1980-12-03 1982-06-04 Valeo Dispositif amortisseur de torsion, en particulier friction d'embrayage, notamment pour vehicule automobile
DE4028616C2 (de) 1990-09-08 2002-09-12 Zf Sachs Ag Kupplungsscheibe mit identischen Führungsteilen zur Ansteuerung der Schraubenfedern für den Leerlaufbereich
DE19515170C2 (de) 1994-04-25 2002-02-28 Exedy Corp Torsionsdämpfer für eine Kupplungsscheibe
US5791638A (en) * 1996-09-13 1998-08-11 Bal Seal Engineering Company, Inc. Coil spring with ends adapted for coupling without welding
WO2009006869A1 (fr) 2007-07-05 2009-01-15 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Embrayage à friction doté d'un disque d'embrayage pour la transmission de couples de rotation
DE102009029723A1 (de) 2008-07-14 2010-01-21 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Kupplungsscheibe
DE102008043250A1 (de) * 2008-10-29 2010-05-06 Zf Friedrichshafen Ag Torsionsschwingungsdämpferanordnung, insbesondere für eine hydrodynamische Kopplungseinrichtung
CH706277A1 (de) * 2012-03-30 2013-09-30 Baumann Federn Ag Verbindung von Federenden.

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