WO2017206991A1 - Pendule centrifuge à guidage radial des masses pendulaires - Google Patents

Pendule centrifuge à guidage radial des masses pendulaires Download PDF

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Publication number
WO2017206991A1
WO2017206991A1 PCT/DE2017/100459 DE2017100459W WO2017206991A1 WO 2017206991 A1 WO2017206991 A1 WO 2017206991A1 DE 2017100459 W DE2017100459 W DE 2017100459W WO 2017206991 A1 WO2017206991 A1 WO 2017206991A1
Authority
WO
WIPO (PCT)
Prior art keywords
pendulum
centrifugal pendulum
centrifugal
cams
mass
Prior art date
Application number
PCT/DE2017/100459
Other languages
German (de)
English (en)
Inventor
Uli Junker
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 DE112017002751.9T priority Critical patent/DE112017002751A5/de
Publication of WO2017206991A1 publication Critical patent/WO2017206991A1/fr

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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
    • F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
    • F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
    • F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range

Definitions

  • the invention relates to a centrifugal pendulum of a drive train of a combustion engine-driven vehicle with relative to a support flange or between two axially spaced support flanges of the centrifugal pendulum pendulum pendulum masses according to the features of the preamble of claim 1.
  • centrifugal pendulum or a centrifugal pendulum device.
  • a centrifugal pendulum Preferably in combination with a dual-mass flywheel occurring oscillations in the drive train can be reduced by means of the centrifugal pendulum.
  • the centrifugal pendulum energy stores energy that is released again in a delayed rotational movement of the shaft.
  • Known centrifugal pendulum pendulum masses which are arranged movably in connection with rollers.
  • each roller is guided in counter-rotating pendulum or slide tracks inserted in the pendulum mass and the carrier flange. Due to this arrangement, the pendulum mass can perform a relative movement to the support element in the operating state of the centrifugal pendulum.
  • the structure and function of such a centrifugal pendulum are shown and described for example in DE 10 2006 028 552 A1.
  • a centrifugal pendulum is known, to which a brake element is assigned, which is displaceable axially against the pendulum mass via a friction lining in order to decelerate the pendulum mass, if necessary.
  • the freedom of movement of the pendulum masses can be limited by the braking element.
  • the deceleration of the pendulum masses can be done to override the function of the centrifugal pendulum.
  • the invention has for its object to provide a centrifugal pendulum in which a radial freedom of movement is limited, without negatively affecting primary eradication properties.
  • the inventively constructed centrifugal pendulum provides that to limit the radial freedom of movement of the pendulum masses in the operating state each pendulum mass is supported at least temporarily via at least one radially inwardly directed cam on a radially outwardly directed corresponding mating contour of the support flange.
  • the invention reduces the radial mobility or the rotation of the pendulum masses by at least one cam or a nose of the pendulum mass during the pendulum movement along the corresponding mating contour on Flange or support flange is guided or supported.
  • the distance between the nose and the mating contour is designed to be as small as possible.
  • the structurally simple design and cost feasible concept according to the invention ensures a permanent restriction of the radial freedom of movement and the avoidance at least but a reduction in the rotation of the pendulum masses.
  • both a noise and a wear-optimized centrifugal pendulum can advantageously be realized.
  • the primary structure of the centrifugal force pendulum is advantageously not adversely affected by the construction according to the invention.
  • the rollers In hitherto known centrifugal pendulum pendulum masses is limited by the rollers in contrast to the invention, the radial freedom of movement. This arrangement allows a correspondingly large radial movement of the pendulum masses, which leads to a disadvantageous noise and at the same time causes adverse signs of wear.
  • the rollers and their associated link or pendulum tracks, the elastic stop elements of the pendulum masses and if installed the coupling springs are exposed to increased wear.
  • the invention is transferable both to conventional centrifugal pendulum with a central support flange and pendulum masses positioned on both sides and on double flange centrifugal pendulum with centrally arranged pendulum mass. Furthermore, it makes sense to combine the solution according to the invention with alternatively constructed constructions of centrifugal force pendulums.
  • the inventively designed components, the pendulum mass and the support flange can be inexpensively made without cutting by means of a forming or a stamping process of a steel sheet.
  • the method includes the molding or the production of the nose on the pendulum mass as well as the production of the counter contour on the support flange.
  • each pendulum mass has two cams, which are associated with two mating contours on the carrier flange. Furthermore, it is advantageous to build the pendulum mass in several parts, consisting of an intermediate plate, which is assigned to both sides of a mass element. On an inner side of the intermediate plate two coincidentally rounded cams or lugs are provided, which are associated with two likewise rounded counter contours on the support flange.
  • the cams are preferably angularly offset in the end zone region of the pendulum mass or its intermediate plate when viewed in the circumferential direction.
  • both the cams and the mating contours are offset from the particular intended for the rollers slide tracks in the pendulum mass and the support flange positioned.
  • the rounded, radially outwardly directed counter contours are provided in mutually angularly offset recesses of the potted carrier flange and the cams on an inner side of the disc-like intermediate plate of the pendulum mass.
  • a preferred structural embodiment of the invention provides for the cams of the pendulum mass or of the intermediate plate preferably to be designed as locally projecting rounded pegs.
  • the counter contours on the support flange are advantageously designed as a circle segment or as a circle section, designed as the partial area of a circular area which is bounded by a circular arc and a chord.
  • the invention is not limited to the aforementioned geometric shapes for the cams and the counter contours.
  • each providing a small distance between the cam of the pendulum mass or the intermediate plate and the associated mating contour on the support flange a maximum distance of ⁇ 2 mm is provided. If necessary, the inventive concept can also provide a deviating distance. Furthermore, the invention preferably includes for the integrally connected with the intermediate plate cam a radial height, which largely coincides with a height of the mating contours on the support flanges.
  • the pendulum mass or the intermediate plate and the support flange As a measure to avoid wear between the directly interacting components, the pendulum mass or the intermediate plate and the support flange, it makes sense to coat the contact surfaces on the cam and the counter contours friction-reducing.
  • a PTFE coating is suitable for this purpose.
  • a molybdenum coating is available for the contact surfaces, which offers both effective wear protection and also improves the friction behavior.
  • FIG. 1 is a partial view of an inventive centrifugal pendulum, constructed as a double flange centrifugal pendulum;
  • Fig. 2 is a sectional view of the centrifugal pendulum of FIG. 1;
  • FIG. 3 the centrifugal pendulum as shown in FIG. 1, with a pendulum mass
  • FIG. 4 the centrifugal pendulum as shown in FIG. 1, with a pendulum mass
  • Fig. 6 in a single part drawing a pendulum mass
  • Fig. 7 a carrier flange in a single part drawing.
  • FIGS. 1 to 4 show in partial views the basic structure of a centrifugal pendulum pendulum 1 according to the invention, which is intended for a drive train of a vehicle driven by an internal combustion engine (not shown) and which is associated with a rotary part of the drive train, for example a dual-mass flywheel.
  • the centrifugal pendulum 1 constructed as a double flange centrifugal pendulum pendulum comprises two plugged support flanges 2, 3, which are combined on the inside and axially spread apart on the outside for receiving a plurality of pendulum masses 4 arranged circumferentially.
  • the pendulum mass 4 which is constructed in three parts and is movably inserted between the support flanges 2, 3, consists of an intermediate plate 5 or spacer, to which a mass element 6, 7 is assigned on both sides, these components being joined together to form a structural unit.
  • FIG. 1 shows a section of a centrifugal pendulum pendulum 1 in perspective, the support flange 3 not being shown for clarification of the invention.
  • two mutually offset curved slide tracks 8 are introduced, in each of which a roller. 9 engaged with play, which is simultaneously guided in a counter-rotating to the slide track 8 further slide track 10 of the support flanges 2, 3 play.
  • pendulum mass 4 The components of the pendulum mass 4, the mass elements 6, 7 and the intermediate plate 5 are joined together via riveted joints 13 to form a structural unit. All in the circumferential direction successively arranged pendulum masses 4 are resiliently connected as a compression spring coupling springs 1 1 connected to each other, which are each inserted into end-side recesses 12 of the intermediate plates 5.
  • the centrifugal pendulum 1 further comprises a measure for restricting the freedom of movement or reducing the radial mobility and / or rotation of the pendulum masses 4 in the operating state.
  • radially inwardly aligned cams 14 are integrally formed on the intermediate plate 5 of the pendulum mass 4 on the inside in both end regions, which each interact with a radially outwardly facing corresponding counter contour 15 of the support flanges 2, 3.
  • the counter-contours 15 are placed in mutually angularly offset recesses 16 of the support flanges 2, 3, which are arranged radially offset in relation to the slide tracks 10 in the region of the potted portions in the support flanges 2, 3.
  • Fig. 3 shows a central position of the pendulum mass 4 relative to the support flanges 2, 3, in which each cam 14 of the intermediate element 5 of the highest elevation of the introduced in the recesses 16 counter contour 15 faces. Notwithstanding this, the pendulum mass 4 is shown in Fig. 4 in an end position, wherein the rollers 9 are supported at end zones of the slide track 8, 10.
  • the cams 14 connected to the intermediate plate 5 are positioned in the recess 16 in a non-impact-free manner and with play.
  • To achieve a damped stop engages a fixed position in the pendulum mass 4, enclosed by an elastic sleeve pin 17 in a corresponding guide track 18 of the support flanges 2, 3, which is thus resiliently supported in the end position at the guide track end.
  • FIG. 5 illustrates, in a simplified representation, the interaction according to the invention of the pendulum mass 4 with the associated support flanges 2, 3.
  • cam 14 On the inside at both end regions of the intermediate plate 5 of the pendulum mass 4 radially inwardly directed, also as rounded pins or lugs to be designated cam 14 are formed.
  • a counter-contour 15 which is connected radially integrally with the carrier flange 2, 3 and formed as a circular segment or circular segment.
  • an occurring rotational nonuniformity of the internal combustion engine leads to a radial movement or rotation of the pendulum mass 4.
  • the degree of freedom of the pendulum mass 4 is limited to a distance X which adjusts between the cams 14 of the intermediate plate 5 and the associated counter-contours 15. This prevents unacceptable large freedom of movement or excessive rotation of the pendulum mass 4.
  • a preferred structural design provides that the cams 14 and the associated counter-contours 15 have a matching length or height S. As a measure to reduce wear, it makes sense to coat both the contact surfaces 19 of the cams 14 of the intermediate plate 5 and the contact surfaces 20 of the mating contours 15 of the support flanges 2, 3 friction-reducing.
  • FIGS. 6 and 7 the intermediate plate 5 of the pendulum mass 4 and the support flange 2, 3 are shown in individual part drawings.
  • the recesses 21 intended for the rollers 9, the position of which coincides as far as possible with the slide tracks 8 of the mass elements 6, 7, are offset radially outwards relative to the cams 14 in the intermediate plate 5.
  • FIG. 7 shows the carrier flange 2, 3, whose recesses 16 are arranged with respective counter contour 15 allocated radially inwards to the slide tracks 10 of the rollers 9.

Landscapes

  • 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)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

L'invention concerne un pendule centrifuge (1) d'une chaîne cinématique d'un véhicule propulsé par un moteur à combustion interne, ce pendule comprenant des masses pendulaires (4) agencées de manière oscillante par rapport à un flasque support (2, 3) ou entre deux flasques supports (2, 3) espacés axialement. Ces masses pendulaires (4) sont guidées par l'intermédiaire de galets (9) venant en prise dans des coulisses (8, 9) ménagées dans le flasque support (2, 3) et les masses pendulaires (4). Selon l'invention, pour limiter la liberté de mouvement des masses pendulaires (4) pendant le fonctionnement, chaque masse pendulaire (4) s'appuie par l'intermédiaire d'au moins une came (14), orientée radialement vers l'intérieur, sur un contour complémentaire (15) correspondant du flasque support (2, 3), ce contour étant orienté radialement vers l'extérieur.
PCT/DE2017/100459 2016-06-03 2017-05-30 Pendule centrifuge à guidage radial des masses pendulaires WO2017206991A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112017002751.9T DE112017002751A5 (de) 2016-06-03 2017-05-30 Fliehkraftpendel mit radialer Führung der Pendelmassen

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102016209751 2016-06-03
DE102016209751.2 2016-06-03
DE102016215063.4 2016-08-12
DE102016215063 2016-08-12

Publications (1)

Publication Number Publication Date
WO2017206991A1 true WO2017206991A1 (fr) 2017-12-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2017/100459 WO2017206991A1 (fr) 2016-06-03 2017-05-30 Pendule centrifuge à guidage radial des masses pendulaires

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DE (2) DE112017002751A5 (fr)
WO (1) WO2017206991A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10247274B2 (en) * 2014-06-17 2019-04-02 Schaeffler Technologies AG & Co. KG Centrifugal force pendulum
WO2020002110A3 (fr) * 2018-06-25 2020-02-20 Zf Friedrichshafen Ag Système d'amortissement de vibrations de torsion

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018202581A1 (de) * 2018-02-21 2019-08-22 Zf Friedrichshafen Ag Tilgersystem
DE102019101960A1 (de) * 2019-01-28 2020-07-30 Schaeffler Technologies AG & Co. KG Fliehkraftpendeleinrichtung mit Endanschlag
DE102022105657A1 (de) 2022-03-10 2023-09-14 Schaeffler Technologies AG & Co. KG Fliehkraftpendeleinrichtung und Drehmomentübertragungseinrichtung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006028552A1 (de) 2005-10-29 2007-05-03 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Kupplungseinrichtung
DE102009042836A1 (de) 2008-11-24 2010-05-27 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Fliehkraftpendel
DE102011085106A1 (de) * 2010-11-11 2013-02-28 Schaeffler Technologies AG & Co. KG Drehschwingungstilgervorrichtung und Drehmomentübertragungsvorrichtung für ein Kraftfahrzeug
WO2015028233A1 (fr) * 2013-08-28 2015-03-05 Zf Friedrichshafen Ag Système d'amortissement
DE102014219524A1 (de) * 2013-10-09 2015-04-09 Schaeffler Technologies AG & Co. KG Dämpfungseinrichtung
DE102014217460A1 (de) 2014-09-02 2016-03-03 Schaeffler Technologies AG & Co. KG Einrichtung zur Übertragung von Drehmoment
EP3026295A1 (fr) * 2014-11-28 2016-06-01 Valeo Embrayages Dispositif d'amortissement d'oscillations de torsion

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006028552A1 (de) 2005-10-29 2007-05-03 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Kupplungseinrichtung
DE102009042836A1 (de) 2008-11-24 2010-05-27 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Fliehkraftpendel
DE102011085106A1 (de) * 2010-11-11 2013-02-28 Schaeffler Technologies AG & Co. KG Drehschwingungstilgervorrichtung und Drehmomentübertragungsvorrichtung für ein Kraftfahrzeug
WO2015028233A1 (fr) * 2013-08-28 2015-03-05 Zf Friedrichshafen Ag Système d'amortissement
DE102014219524A1 (de) * 2013-10-09 2015-04-09 Schaeffler Technologies AG & Co. KG Dämpfungseinrichtung
DE102014217460A1 (de) 2014-09-02 2016-03-03 Schaeffler Technologies AG & Co. KG Einrichtung zur Übertragung von Drehmoment
EP3026295A1 (fr) * 2014-11-28 2016-06-01 Valeo Embrayages Dispositif d'amortissement d'oscillations de torsion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10247274B2 (en) * 2014-06-17 2019-04-02 Schaeffler Technologies AG & Co. KG Centrifugal force pendulum
WO2020002110A3 (fr) * 2018-06-25 2020-02-20 Zf Friedrichshafen Ag Système d'amortissement de vibrations de torsion

Also Published As

Publication number Publication date
DE102017111754A1 (de) 2017-12-07
DE112017002751A5 (de) 2019-02-14

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