WO2018104139A1 - Torsion damping device - Google Patents

Torsion damping device Download PDF

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Publication number
WO2018104139A1
WO2018104139A1 PCT/EP2017/080927 EP2017080927W WO2018104139A1 WO 2018104139 A1 WO2018104139 A1 WO 2018104139A1 EP 2017080927 W EP2017080927 W EP 2017080927W WO 2018104139 A1 WO2018104139 A1 WO 2018104139A1
Authority
WO
WIPO (PCT)
Prior art keywords
web
elastic members
torque
guide
annular
Prior art date
Application number
PCT/EP2017/080927
Other languages
French (fr)
Inventor
Roel Verhoog
Gabriel BOUCHE
Original Assignee
Valeo Embrayages
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 Valeo Embrayages filed Critical Valeo Embrayages
Priority to CN201780075844.4A priority Critical patent/CN110050145B/en
Priority to JP2019530650A priority patent/JP7008072B2/en
Priority to DE112017006220.9T priority patent/DE112017006220T5/en
Publication of WO2018104139A1 publication Critical patent/WO2018104139A1/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
    • F16F15/14—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
    • 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
    • F16F15/12313—Wound springs characterised by the dimension or shape of spring-containing windows
    • 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
    • F16F15/13415—Wound springs characterised by the dimension or shape of spring-containing windows

Definitions

  • the present invention relates to a torsion damping device, in particular for a motor vehicle transmission system.
  • the torsion damping device can be integrated with a torsion damping system of a clutch capable of selectively connecting the heat engine to the gearbox, in order to filter the vibrations due to the acyclisms of the engine. .
  • the torsion damping device may be integrated with a friction disk of the clutch or with a hydrodynamic torque converter.
  • the invention also relates to a transmission assembly for a hybrid type of motor vehicle in which an electric machine is arranged in the transmission chain between the engine and the gearbox.
  • Such a device generally comprises a torque input member, a torque output member, and resilient members mounted between the input member and the torque output member and acting against rotation of the the input element and the torque output element relative to each other.
  • the torque transmission device When the torque transmission device is LTD (Long Travel Damper) type, it comprises several groups of elastic members, the elastic members of the same group being arranged in series via a phasing member so the elastic members of each group deform in phase with each other.
  • the patent application FR 3,015,380 discloses a torsion damping device, comprising a torque input member, a torque output member, and at least one group of mounted elastic members. between the elements torque input and output means acting against the rotation of the input and torque output elements relative to one another, the elastic members of this group being arranged in series via at least one phasing member so that the elastic members of each group deform in phase with each other about an axis of rotation of the device.
  • Guide washers are located axially on either side of the elastic members and delimit between them a volume in which are housed said elastic members.
  • Pendular masses are mounted movably on the phasing member.
  • the latter is formed by an annular veil.
  • the term waterproof characterizes a volume to retain the fat it contains.
  • the invention aims in particular to provide a simple, effective and economical solution to this problem.
  • a torsion damping device comprising at least one torque input element, at least one torque output element, and at least one group of elastic members mounted between the input elements. and torque output, acting against the rotation of the input and torque output elements relative to each other, the elastic members of this group being arranged in series via at least one a phasing member so that the elastic members of each group deform in phase with each other about an axis of rotation of the device, the guide washers located axially on either side of the elastic members and delimiting between them a volume in which these organs are housed resilient, pendular damping means comprising pendular masses mounted movably on the phasing member, characterized in that the phasing member is integral or formed, at least in part, by the guide rings, the device comprising sealing means defining with the guide rings a sealed volume in which are housed the elastic members.
  • Such a structure makes it easier to set up the sealing means, to move the pendulum means radially away from the device axis and to pass the torque from the inlet to the outlet near the axis of the device. , so as to improve the operation of the latter.
  • the pendulum masses are mounted movably on an annular support mounted on the guide rings.
  • the radially inner periphery of the support is axially sealed between the radially outer peripheries of the guide washers.
  • the pendular masses may be located axially on either side of the support.
  • the support may comprise two annular parts offset axially from each other, the pendulum masses being mounted axially between said parts of the support.
  • the pendular masses may be located radially outside the resilient members and guide washers.
  • the torque input member comprises an inlet web having an annular portion and tabs extending radially inwardly, the resilient members being arranged to bear on said tabs of the entry web.
  • the torque input element may comprise an annular primary mass of inertia fixed to a deformable sheet in the axial direction.
  • the deformable sheet makes it possible to isolate in flexion the primary mass of inertia, so as to improve the operation of the device.
  • the torque input element may comprise an input hub fixed at the radially inner periphery of the sheet, for example by means of rivets, said hub being coupled in rotation to the input web.
  • the hub may comprise pins or coupling teeth, engaged in recesses or recessed areas of complementary shape of the entrance web, or vice versa.
  • the torque output member may comprise an output web having an annular portion and lugs extending radially inward, the elastic members being arranged to bear on said tabs of the output web.
  • the torque output member may comprise a hub, for example a splined hub, fixed to the output web, for example by means of rivets.
  • Each guide ring may comprise at least one hollow zone extending circumferentially, intended to accommodate, at least in part, the elastic members, said elastic members being arranged to bear on the circumferential ends of said hollow areas.
  • the sealing means may comprise a first sealing washer in axial sealing engagement on one of the guide washers and on the inlet web, and a second sealing washer in axial sealing on the other washer of guidance and on the output sail.
  • the sealing washers are for example elastically deformable in the axial direction.
  • Sealing washers are for example elastic conical washers, also called Belleville washers.
  • the inlet web and the outlet web may each comprise an annular portion extending radially, said annular portions being axially sealed against one another.
  • the output web may comprise two annular portions, for example two annular sheets located axially on either side of the inlet web.
  • the invention also relates to a component for a transmission system of a motor vehicle, the component being in particular a double damping flywheel, a hydrodynamic torque converter or a friction disc, comprising a damping device of the aforementioned type.
  • the invention further relates to a transmission assembly for a hybrid type of motor vehicle comprising an electric machine and a component of the aforementioned type, able to be arranged between a heat engine and a gearbox.
  • FIG. 1 is an exploded perspective view of a device according to a first embodiment of the invention
  • FIG. 2 is a perspective view of the device, one of the guide washers having been removed
  • FIGS. 3 and 4 are sectional views of the device, in two different section planes
  • FIGS. 5 and 6 are sectional views of part of the device, respectively according to the first embodiment and according to a second embodiment of the device,
  • FIG. 7 is a half-sectional view of the device according to a third embodiment
  • Figures 1 to 5 show a torsion damping device according to a first embodiment of the invention.
  • a torque input element comprising a primary mass of inertia 1, of annular and X-axis shape, and a fine arched plate 2 whose radially outer periphery is fixed, for example by welding, to the rear face of the mass of inertia 1.
  • An annular target 3 is fixed, for example by welding, on a radial surface before the primary mass of inertia 1.
  • the target 3 comprises an annular radial portion 4 and a cylindrical portion 5 extending forwardly from the radially outer periphery of the radial portion 4.
  • the cylindrical portion 5 has openings 6 distributed over the circumference, capable of being detected by an optical system for example to measure the rotation speed and / or the angular position of the torque input element.
  • the torque input member further includes an input hub 7 having an annular radial flange 8 at its rear end.
  • the rim 8 is fixed to the radially inner periphery of the sheet 2, for example by means of rivets.
  • the inner peripheral surface of the hub 7 is cylindrical and has a groove for the insertion of an elastic ring or circlip 9.
  • the front end of the inlet hub 7 has teeth 10 uniformly distributed over the circumference, said teeth 10 extending axially forwardly.
  • the torque input member further comprises an inlet web January 1 having an annular portion 12 from which tabs 13 extend radially outwardly.
  • the annular portion 12 has a radially outer zone 14 which extends in a radial plane offset axially forwards with respect to the radially inner zone 15 of the annular portion 12.
  • the inner 15 and outer 14 zones are thus connected by a arched area 16.
  • the tabs 13 extend in the radial plane of the radially outer zone 14 of the annular portion 12.
  • the annular portion 12 has holes 17 for the passage of a riveting tool.
  • the radially outer ends of the lugs 13 comprise holding studs 18 extending circumferentially on either side of each lug 13.
  • the device further comprises a torque output element comprising an output web 19 and an output hub 20.
  • the outlet web 19 has an annular portion 21 from which tabs 22 extend radially outwardly.
  • the annular portion has a radially outer zone 23 which extends in a radial plane axially offset rearwardly with respect to the radially inner zone 24 of the annular portion 21.
  • the inner and outer zones are thus connected by at least one arched zone 25.
  • the tabs 22 extend in the radial plane of the radially outer zone 23 of the annular portion 21.
  • the annular portion 21 has holes 26 for the passage of a riveting tool.
  • the radially outer ends of the lugs 22 comprise holding studs 27 extending circumferentially on either side of each lug 22.
  • the outlet hub 20 has, at its front end, a flange 28 extending radially outwardly.
  • the cylindrical outer surface of the hub 20 has a groove in which is inserted the elastic ring 9, so as to bind axially in translation the inlet hub 7 and the outlet hub 20, while allowing their relative pivoting about the axis X.
  • the radially inner periphery of the outlet web 19 bears on the rear surface of the flange 28 and is welded to the outlet hub 20.
  • Three pairs of resilient members 29, 30 are circumferentially mounted between the torque output member and the torque input member via a phasing member.
  • the resilient members 29, 30 are, for example, helical compression springs, in particular straight springs.
  • the phasing member comprises a rear guide washer
  • Each guide ring 31, 32 comprises three hollow zones 33 extending circumferentially and uniformly distributed around the X axis, the circumferential ends of the hollow zones 33 forming bearing zones 34 for the elastic members 29, 30.
  • the hollow zones 33 and the bearing zones 34 of the two guide washers are located facing each other.
  • the radially inner periphery of the rear guide washer 31 comprises a cylindrical rim 35 extending rearward, pivotally mounted around the inlet hub 7.
  • the radially inner periphery of the front guide washer 32 is pivotally mounted around the flange 28 of the outlet hub 20.
  • Each guide washer has holes 36 for insertion of a riveting tool, located opposite the holes 17, 26.
  • the radially outer peripheries 37 of the guide washers 31, 32 extend radially and are fixed, for example by welding, on either side of an annular support 38 extending radially.
  • the support 38 extends outside the guide rings 31, 32.
  • Pendular masses 39 are mounted in a movable manner on the support 38, via rolling members, as is known per se, so as to form damping means for improving the filtration of vibrations and rotational acyclisms.
  • a first elastic member 29 is arranged to bear at a first end on one of the tabs 13 of the entry web 1 1 and at a second end, on zones support 34 of the guide washers 31, 32, a second resilient member 30 being arranged to bear on the bearing zones 34 of the guide washers 31, 32 and on one of the lugs 22 of the outlet web 19.
  • the elastic members 29, 30 thus oppose the pivoting, around the axis X, of the entry web 1 1 with respect to the output web 19, or more generally of the torque entry element with respect to the torque output element.
  • the elastic members 29, 30 of the same pair are arranged in series through the guide rings 31, 32, which form a phasing member so that the elastic members 29, 30 of each group deform into phase with each other around the X axis.
  • a first elastic washer 40 (FIGS. 3 and 4), resiliently deformable in the axial direction, is interposed axially between the rear guide washer 31 and the inlet web 11.
  • a second elastic washer 41 of similar structure is interposed axially between the front guide washer 32 and the outlet web 19.
  • Said spring washers 40 are for example conical washers, also called Belleville washers.
  • each elastic washer 40 bears on the corresponding inlet 1 1 or outlet 19 web and the radially inner periphery of each elastic washer 40 bears against the corresponding guide washer 31, 32.
  • These supports are continuous over the entire circumference to ensure a seal at these areas.
  • the outer zones 14, 23 of the annular portions of the entry and exit webs 1 1, 19 are in tight abutment against each other.
  • a seal, at least a grease seal, of the volume delimited by the guide washers 31, 32, the support 38, the inlet and outlet webs 1 1, 19, and the spring washers 40, 41 is ensured.
  • Said volume houses the elastic members 29, 30 and can be filled with grease so as to ensure good lubrication.
  • the torque is transmitted for example from a crankshaft to the torque input element, then to the torque output element, through the elastic members 29, 30 and the phasing member formed in particular by the guide washers 31, 32.
  • the torque input element, the phasing member and the torque output member can pivot relative to each other, such pivoting then generating friction at the contact areas between the two webs 1 1, 19 or areas of contact with the spring washers 40.
  • friction means also called hysteresis means participate in damping vibrations and acyclisms of rotation, in combination with the elastic members 29, 30.
  • FIG. 6 illustrates a second embodiment of the invention, which differs from that described with reference to FIGS. 1 to 5, in that the support is formed of two annular portions 38a, 38b, the pendulum masses 39 being located axially between said portions 38a 38b of the support. Furthermore, the guide washers 31, 32 are axially in sealing engagement with one another at their outer periphery 37. The internal peripheries of the parts 38a, 38b of the support are fixed on either side of the peripheries. 37 of the guide washers 31, 32, for example by means of rivets 42.
  • FIG. 7 illustrates a third embodiment, which differs from that described with reference to FIGS. 1 to 5 in that the inlet web 1 1 extends radially, the outlet web 19 being formed in two parts or separate plates 19a, 19b, extending radially and located axially on either side of the inlet web January 1.
  • the inner periphery of the plates 19a, 19b is fixed to the output hub 20 by means of rivets 43 for example.
  • An annular pad 44 of synthetic material is mounted between the radially inner periphery of each guide washer 31, 32 and the corresponding plate 19a, 19b, so as to seal the volume accommodating the elastic members 29, 30.

Abstract

The invention relates to a torsion damping device, comprising at least one torque input element, at least one torque output element and at least one group of resilient members (29, 30) mounted between the torque input and output elements, the resilient members (29, 30) of this group being arranged in series by means of at least one phasing member so that the resilient members (29, 30) of each group deform in phase, one relative to the other, about an axis of rotation (X) of the device, guide washers (31, 32) axially located on either side of the resilient members (29, 30) and together delimiting a volume in which said resilient members (29, 30) are housed, pendulum damping means comprising pendulum masses (39) movably mounted on the phasing member, characterised in that the phasing member is integral with or is formed, at least partly, by the guide washers (31, 32), the device comprising sealing means delimiting, with the guide washers (31, 32), a sealed volume in which the resilient members (29, 30) are housed.

Description

Dispositif d'amortissement de torsion  Torsion damping device
La présente invention concerne un dispositif d'amortissement de torsion, notamment pour un système de transmission de véhicule automobile. The present invention relates to a torsion damping device, in particular for a motor vehicle transmission system.
Dans une telle application, le dispositif d'amortissement de torsion peut être intégré à un système d'amortissement de torsion d'un embrayage apte à relier sélectivement le moteur thermique à la boîte de vitesses, afin de filtrer les vibrations dues aux acyclismes du moteur.  In such an application, the torsion damping device can be integrated with a torsion damping system of a clutch capable of selectively connecting the heat engine to the gearbox, in order to filter the vibrations due to the acyclisms of the engine. .
En variante, dans une telle application, le dispositif d'amortissement de torsion peut être intégré à un disque de friction de l'embrayage ou à un convertisseur de couple hydrodynamique.  Alternatively, in such an application, the torsion damping device may be integrated with a friction disk of the clutch or with a hydrodynamic torque converter.
L'invention concerne également un ensemble de transmission pour un véhicule automobile de type hybride dans lequel une machine électrique est disposée, dans la chaîne de transmission, entre le moteur et la boîte de vitesses.  The invention also relates to a transmission assembly for a hybrid type of motor vehicle in which an electric machine is arranged in the transmission chain between the engine and the gearbox.
Un tel dispositif comporte de façon générale un élément d'entrée de couple, un élément de sortie de couple, et des organes élastiques montés entre l'élément d'entrée et l'élément de sortie de couple et agissant à encontre de la rotation de l'élément d'entrée et l'élément de sortie de couple l'un par rapport à l'autre.  Such a device generally comprises a torque input member, a torque output member, and resilient members mounted between the input member and the torque output member and acting against rotation of the the input element and the torque output element relative to each other.
Lorsque le dispositif de transmission de couple est de type LTD (Long Travel Damper), il comprend plusieurs groupes d'organes élastiques, les organes élastiques d'un même groupe étant agencés en série par l'intermédiaire d'un organe de phasage de façon à ce que les organes élastiques de chaque groupe se déforment en phase les uns avec les autres.  When the torque transmission device is LTD (Long Travel Damper) type, it comprises several groups of elastic members, the elastic members of the same group being arranged in series via a phasing member so the elastic members of each group deform in phase with each other.
La demande de brevet FR 3 015 380, au nom de la Demanderesse, divulgue un dispositif d'amortissement de torsion, comportant un élément d'entrée de couple, un élément de sortie de couple, et au moins un groupe d'organes élastiques montés entre les éléments d'entrée et de sortie de couple, agissant à encontre de la rotation des éléments d'entrée et de sortie de couple l'un par rapport à l'autre, les organes élastiques de ce groupe étant agencés en série par l'intermédiaire d'au moins un organe de phasage de façon à ce que les organes élastiques de chaque groupe se déforment en phase les uns avec les autres autour d'un axe de rotation du dispositif. Des rondelles de guidage sont situées axialement de part et d'autre des organes élastiques et délimitent entre elles un volume dans lequel sont logés lesdits organes élastiques. The patent application FR 3,015,380, in the name of the Applicant, discloses a torsion damping device, comprising a torque input member, a torque output member, and at least one group of mounted elastic members. between the elements torque input and output means acting against the rotation of the input and torque output elements relative to one another, the elastic members of this group being arranged in series via at least one phasing member so that the elastic members of each group deform in phase with each other about an axis of rotation of the device. Guide washers are located axially on either side of the elastic members and delimit between them a volume in which are housed said elastic members.
Des masses pendulaires sont montées de façon mobile sur l'organe de phasage. Ce dernier est formé par un voile annulaire.  Pendular masses are mounted movably on the phasing member. The latter is formed by an annular veil.
En fonction des applications, il peut être nécessaire de former un volume étanche rempli de graisse, dans lequel sont logés les organes élastiques. Dans ce qui suit, le terme étanche caractérise un volume permettant de conserver la graisse qu'il contient.  Depending on the applications, it may be necessary to form a sealed volume filled with grease, in which are housed the elastic members. In what follows, the term waterproof characterizes a volume to retain the fat it contains.
Afin de réaliser avec efficacité une telle étanchéité sans pénaliser les autres fonctions du dispositif, il convient de modifier la structure de ce dernier.  In order to effectively achieve such a seal without penalizing the other functions of the device, it is necessary to modify the structure of the latter.
L'invention a notamment pour but d'apporter une solution simple, efficace et économique à ce problème.  The invention aims in particular to provide a simple, effective and economical solution to this problem.
A cet effet, elle propose un dispositif d'amortissement de torsion, comportant au moins un élément d'entrée de couple, au moins un élément de sortie de couple, et au moins un groupe d'organes élastiques montés entre les éléments d'entrée et de sortie de couple, agissant à encontre de la rotation des éléments d'entrée et de sortie de couple l'un par rapport à l'autre, les organes élastiques de ce groupe étant agencés en série par l'intermédiaire d'au moins un organe de phasage de façon à ce que les organes élastiques de chaque groupe se déforment en phase les uns avec les autres autour d'un axe de rotation du dispositif, des rondelles de guidage situées axialement de part et d'autre des organes élastiques et délimitant entre elles un volume dans lequel sont logés lesdits organes élastiques, des moyens d'amortissement pendulaires comportant des masses pendulaires montés de façon mobile sur l'organe de phasage, caractérisé en ce que l'organe de phasage est solidaire ou formé, au moins en partie, par les rondelles de guidage, le dispositif comportant des moyens d'étanchéité délimitant avec les rondelles de guidage un volume étanche dans lequel sont logés les organes élastiques. For this purpose, it proposes a torsion damping device comprising at least one torque input element, at least one torque output element, and at least one group of elastic members mounted between the input elements. and torque output, acting against the rotation of the input and torque output elements relative to each other, the elastic members of this group being arranged in series via at least one a phasing member so that the elastic members of each group deform in phase with each other about an axis of rotation of the device, the guide washers located axially on either side of the elastic members and delimiting between them a volume in which these organs are housed resilient, pendular damping means comprising pendular masses mounted movably on the phasing member, characterized in that the phasing member is integral or formed, at least in part, by the guide rings, the device comprising sealing means defining with the guide rings a sealed volume in which are housed the elastic members.
Une telle structure permet de faciliter la mise en place des moyens d'étanchéité, d'éloigner radialement les moyens pendulaires de l'axe de dispositif et de faire traverser le couple de l'entrée vers la sortie à proximité de l'axe du dispositif, de façon à améliorer le fonctionnement de ce dernier.  Such a structure makes it easier to set up the sealing means, to move the pendulum means radially away from the device axis and to pass the torque from the inlet to the outlet near the axis of the device. , so as to improve the operation of the latter.
Il est particulièrement aisé de fixer les moyens d'amortissement pendulaires sur l'organe de phasage lorsque celui-ci définit le volume étanche logeant les organes élastiques sans dégrader ou complexifier l'étanchéité de ce volume. En effet, il est difficile de fixer les moyens d'amortissement pendulaires sur l'organe de phasage lorsque celui-ci est inséré dans ce volume étanche sans rencontrer des problèmes d'étanchéité.  It is particularly easy to fix the pendular damping means on the phasing member when it defines the sealed volume housing the elastic members without degrading or complicating the tightness of this volume. Indeed, it is difficult to fix the pendulum damping means on the phasing member when it is inserted into this sealed volume without encountering sealing problems.
Les masses pendulaires sont montées de façon mobile sur un support annulaire monté sur les rondelles de guidage.  The pendulum masses are mounted movably on an annular support mounted on the guide rings.
Plus particulièrement, la périphérie radialement interne du support est fixée de façon étanche axialement entre les périphéries radialement externes des rondelles de guidage.  More particularly, the radially inner periphery of the support is axially sealed between the radially outer peripheries of the guide washers.
Il est ainsi possible de gérer aisément l'étanchéité au niveau de la zone de fixation entre le support annulaire et les rondelles de guidage. Une telle fixation peut être réalisée par soudage sur toute la périphérie.  It is thus possible to easily manage the seal at the fixing zone between the annular support and the guide washers. Such a fixing can be performed by welding on the entire periphery.
Les masses pendulaires peuvent être situées axialement de part et d'autre du support.  The pendular masses may be located axially on either side of the support.
En variante, le support peut comporter deux parties annulaires décalées axialement l'une de l'autre, les masses pendulaires étant montées axialement entre lesdites parties du support. Les masses pendulaires peuvent être situées radialement à l'extérieur des organes élastiques et des rondelles de guidage. Alternatively, the support may comprise two annular parts offset axially from each other, the pendulum masses being mounted axially between said parts of the support. The pendular masses may be located radially outside the resilient members and guide washers.
On augmente ainsi l'efficacité des moyens d'amortissement pendulaires.  This increases the efficiency of the pendulum damping means.
L'élément d'entrée de couple comporte un voile d'entrée comportant une partie annulaire et des pattes s'étendant radialement vers l'intérieur, les organes élastiques étant agencés pour prendre appui sur lesdites pattes du voile d'entrée.  The torque input member comprises an inlet web having an annular portion and tabs extending radially inwardly, the resilient members being arranged to bear on said tabs of the entry web.
L'élément d'entrée de couple peut comporter une masse d'inertie primaire annulaire fixée à une tôle déformable dans la direction axiale.  The torque input element may comprise an annular primary mass of inertia fixed to a deformable sheet in the axial direction.
La tôle déformable permet d'isoler en flexion la masse d'inertie primaire, de façon à améliorer le fonctionnement du dispositif.  The deformable sheet makes it possible to isolate in flexion the primary mass of inertia, so as to improve the operation of the device.
L'élément d'entrée de couple peut comporter un moyeu d'entrée fixé en périphérie radialement interne de la tôle, par exemple par l'intermédiaire de rivets, ledit moyeu étant couplé en rotation au voile d'entrée.  The torque input element may comprise an input hub fixed at the radially inner periphery of the sheet, for example by means of rivets, said hub being coupled in rotation to the input web.
Pour cela, le moyeu peut comporter des pions ou des dents de couplage, engagés dans des évidements ou des zones en creux de forme complémentaire du voile d'entrée, ou inversement.  For this, the hub may comprise pins or coupling teeth, engaged in recesses or recessed areas of complementary shape of the entrance web, or vice versa.
L'élément de sortie de couple peut comporter un voile de sortie comportant une partie annulaire et des pattes s'étendant radialement vers l'intérieur, les organes élastiques étant agencés pour prendre appui sur lesdites pattes du voile de sortie.  The torque output member may comprise an output web having an annular portion and lugs extending radially inward, the elastic members being arranged to bear on said tabs of the output web.
L'élément de sortie de couple peut comporter un moyeu, par exemple un moyeu cannelé, fixé au voile de sortie, par exemple par l'intermédiaire de rivets.  The torque output member may comprise a hub, for example a splined hub, fixed to the output web, for example by means of rivets.
Chaque rondelle de guidage peut comporter au moins une zone creuse s'étendant circonférentiellement, destinée à loger, au moins en partie, les organes élastiques, lesdits organes élastiques étant agencées pour prendre appui sur les extrémités circonférentielles desdites zones creuses. Les moyens d'étanchéité peuvent comporter une première rondelle d'étanchéité en appui axial étanche sur l'une des rondelles de guidage et sur le voile d'entrée, et une seconde rondelle d'étanchéité en appui axial étanche sur l'autre rondelle de guidage et sur le voile de sortie. Each guide ring may comprise at least one hollow zone extending circumferentially, intended to accommodate, at least in part, the elastic members, said elastic members being arranged to bear on the circumferential ends of said hollow areas. The sealing means may comprise a first sealing washer in axial sealing engagement on one of the guide washers and on the inlet web, and a second sealing washer in axial sealing on the other washer of guidance and on the output sail.
Les rondelles d'étanchéité sont par exemple déformables élastiquement dans la direction axiale. Les rondelles d'étanchéité sont par exemples des rondelles coniques élastiques, également appelées rondelles Belleville.  The sealing washers are for example elastically deformable in the axial direction. Sealing washers are for example elastic conical washers, also called Belleville washers.
Le voile d'entrée et le voile de sortie peuvent comporter chacun une partie annulaire s'étendant radialement, lesdites parties annulaires étant en appui axial étanche l'une sur l'autre.  The inlet web and the outlet web may each comprise an annular portion extending radially, said annular portions being axially sealed against one another.
Le voile de sortie peut comporter deux parties annulaires, par exemple deux tôles annulaires, situées axialement de part et d'autre du voile d'entrée.  The output web may comprise two annular portions, for example two annular sheets located axially on either side of the inlet web.
L'invention concerne également un composant pour système de transmission d'un véhicule automobile, le composant étant notamment un double volant amortisseur, un convertisseur de couple hydrodynamique ou un disque de friction, comprenant un dispositif d'amortissement du type précité.  The invention also relates to a component for a transmission system of a motor vehicle, the component being in particular a double damping flywheel, a hydrodynamic torque converter or a friction disc, comprising a damping device of the aforementioned type.
L'invention concerne en outre un ensemble de transmission pour un véhicule automobile de type hybride comprenant une machine électrique et un composant du type précité, apte à être disposé entre un moteur thermique et une boîte de vitesses.  The invention further relates to a transmission assembly for a hybrid type of motor vehicle comprising an electric machine and a component of the aforementioned type, able to be arranged between a heat engine and a gearbox.
L'invention sera mieux comprise et d'autres détails, caractéristiques et avantages de l'invention apparaîtront à la lecture de la description suivante faite à titre d'exemple non limitatif en référence aux dessins annexés dans lesquels :  The invention will be better understood and other details, characteristics and advantages of the invention will appear on reading the following description given by way of non-limiting example with reference to the accompanying drawings in which:
- la figure 1 est une vue éclatée, en perspective, d'un dispositif selon une première forme de réalisation de l'invention,  FIG. 1 is an exploded perspective view of a device according to a first embodiment of the invention,
- la figure 2 est une vue en perspective du dispositif, l'une des rondelles de guidage ayant été retirée, - les figures 3 et 4 sont des vues en section du dispositif, selon deux plans de coupe différents, FIG. 2 is a perspective view of the device, one of the guide washers having been removed, FIGS. 3 and 4 are sectional views of the device, in two different section planes,
- les figures 5 et 6 sont des vues en section d'une partie du dispositif, respectivement selon la première forme de réalisation et selon une deuxième forme de réalisation du dispositif,  FIGS. 5 and 6 are sectional views of part of the device, respectively according to the first embodiment and according to a second embodiment of the device,
- la figure 7 est une demi-vue en section du dispositif selon une troisième forme de réalisation,  FIG. 7 is a half-sectional view of the device according to a third embodiment,
Les figures 1 à 5 représentent un dispositif d'amortissement de torsion selon une première forme de réalisation de l'invention.  Figures 1 to 5 show a torsion damping device according to a first embodiment of the invention.
Celui-ci comporte un élément d'entrée de couple comprenant une masse d'inertie primaire 1 , de forme annulaire et d'axe X, et une tôle fine cambrée 2 dont la périphérie radialement externe est fixée, par exemple par soudage, à la face arrière de la masse d'inertie 1 .  It comprises a torque input element comprising a primary mass of inertia 1, of annular and X-axis shape, and a fine arched plate 2 whose radially outer periphery is fixed, for example by welding, to the rear face of the mass of inertia 1.
Une cible annulaire 3 est fixée, par exemple par soudage, sur une surface radiale avant de la masse d'inertie primaire 1 . La cible 3 comporte une partie radiale annulaire 4 et une partie cylindrique 5 s'étendant vers l'avant depuis la périphérie radialement externe de la partie radiale 4. La partie cylindrique 5 comporte des ouvertures 6 réparties sur toute la circonférence, aptes à être détectées par un système optique par exemple afin de mesurer la vitesse de rotation et/ou la position angulaire de l'élément d'entrée de couple.  An annular target 3 is fixed, for example by welding, on a radial surface before the primary mass of inertia 1. The target 3 comprises an annular radial portion 4 and a cylindrical portion 5 extending forwardly from the radially outer periphery of the radial portion 4. The cylindrical portion 5 has openings 6 distributed over the circumference, capable of being detected by an optical system for example to measure the rotation speed and / or the angular position of the torque input element.
L'élément d'entrée de couple comporte en outre un moyeu d'entrée 7 comportant un rebord radial annulaire 8 au niveau de son extrémité arrière. Le rebord 8 est fixé à la périphérie radialement interne de la tôle 2, par exemple par l'intermédiaire de rivets. La surface périphérique interne du moyeu 7 est cylindrique et comporte une gorge permettant l'insertion d'un anneau élastique ou circlip 9.  The torque input member further includes an input hub 7 having an annular radial flange 8 at its rear end. The rim 8 is fixed to the radially inner periphery of the sheet 2, for example by means of rivets. The inner peripheral surface of the hub 7 is cylindrical and has a groove for the insertion of an elastic ring or circlip 9.
L'extrémité avant du moyeu d'entrée 7 comporte des dents 10 régulièrement réparties sur la circonférence, lesdites dents 10 s'étendant axialement vers l'avant. L'élément d'entrée de couple comporte de plus un voile d'entrée 1 1 comportant une partie annulaire 12 à partir de laquelle des pattes 13 s'étendent radialement vers l'extérieur. La partie annulaire 12 comporte une zone radialement externe 14 qui s'étend dans un plan radial décalé axialement vers l'avant par rapport à la zone radialement interne 15 de la partie annulaire 12. Les zones interne 15 et externe 14 sont ainsi reliées par une zone cambrée 16. Les pattes 13 s'étendent dans le plan radial de la zone radialement externe 14 de la partie annulaire 12. La partie annulaire 12 comporte des trous 17 destinés au passage d'un outil de rivetage. The front end of the inlet hub 7 has teeth 10 uniformly distributed over the circumference, said teeth 10 extending axially forwardly. The torque input member further comprises an inlet web January 1 having an annular portion 12 from which tabs 13 extend radially outwardly. The annular portion 12 has a radially outer zone 14 which extends in a radial plane offset axially forwards with respect to the radially inner zone 15 of the annular portion 12. The inner 15 and outer 14 zones are thus connected by a arched area 16. The tabs 13 extend in the radial plane of the radially outer zone 14 of the annular portion 12. The annular portion 12 has holes 17 for the passage of a riveting tool.
Les extrémités radialement externes des pattes 13 comportent des pions de maintien 18 s'étendant circonférentiellement de part et d'autre de chaque patte 13.  The radially outer ends of the lugs 13 comprise holding studs 18 extending circumferentially on either side of each lug 13.
Le dispositif comporte en outre un élément de sortie de couple comportant un voile de sortie 19 et un moyeu de sortie 20.  The device further comprises a torque output element comprising an output web 19 and an output hub 20.
Le voile de sortie 19 comporte une partie annulaire 21 à partir de laquelle des pattes 22 s'étendent radialement vers l'extérieur. La partie annulaire comporte une zone radialement externe 23 qui s'étend dans un plan radial décalé axialement vers l'arrière par rapport à la zone radialement interne 24 de la partie annulaire 21 . Les zones interne et externe sont ainsi reliées par au moins une zone cambrée 25. Les pattes 22 s'étendent dans le plan radial de la zone radialement externe 23 de la partie annulaire 21 . La partie annulaire 21 comporte des trous 26 destinés au passage d'un outil de rivetage.  The outlet web 19 has an annular portion 21 from which tabs 22 extend radially outwardly. The annular portion has a radially outer zone 23 which extends in a radial plane axially offset rearwardly with respect to the radially inner zone 24 of the annular portion 21. The inner and outer zones are thus connected by at least one arched zone 25. The tabs 22 extend in the radial plane of the radially outer zone 23 of the annular portion 21. The annular portion 21 has holes 26 for the passage of a riveting tool.
Les extrémités radialement externes des pattes 22 comportent des pions de maintien 27 s'étendant circonférentiellement de part et d'autre de chaque patte 22.  The radially outer ends of the lugs 22 comprise holding studs 27 extending circumferentially on either side of each lug 22.
Le moyeu de sortie 20 comporte, au niveau de son extrémité avant, un rebord 28 s'étendant radialement vers l'extérieur.  The outlet hub 20 has, at its front end, a flange 28 extending radially outwardly.
La surface externe cylindrique du moyeu 20 comporte une gorge dans laquelle est inséré l'anneau élastique 9, de manière à lier axialement en translation le moyeu d'entrée 7 et le moyeu de sortie 20, tout en autorisant leur pivotement relatif autour de l'axe X. The cylindrical outer surface of the hub 20 has a groove in which is inserted the elastic ring 9, so as to bind axially in translation the inlet hub 7 and the outlet hub 20, while allowing their relative pivoting about the axis X.
La périphérie radialement interne du voile de sortie 19 est en appui sur la surface arrière du rebord 28 et est soudée au moyeu de sortie 20.  The radially inner periphery of the outlet web 19 bears on the rear surface of the flange 28 and is welded to the outlet hub 20.
Trois paires d'organes élastiques 29, 30 sont montés circonférentiellement entre l'élément de sortie de couple et l'élément d'entrée de couple, par l'intermédiaire d'un organe de phasage. Les organes élastiques 29, 30 sont par exemple des ressorts de compression hélicoïdaux, en particulier des ressorts droits. Chaque organe élastique 29, Three pairs of resilient members 29, 30 are circumferentially mounted between the torque output member and the torque input member via a phasing member. The resilient members 29, 30 are, for example, helical compression springs, in particular straight springs. Each elastic member 29,
30 peut compoter deux ressorts de compression concentriques. 30 can compot two concentric compression springs.
L'organe de phasage comporte une rondelle de guidage arrière The phasing member comprises a rear guide washer
31 et une rondelle de guidage avant 32. 31 and a front guide ring 32.
Chaque rondelle de guidage 31 , 32 comporte trois zones creuses 33 s'étendant circonférentiellement et régulièrement réparties autour de l'axe X, les extrémités circonférentielles des zones creuses 33 formant des zones d'appui 34 pour les organes élastiques 29, 30.  Each guide ring 31, 32 comprises three hollow zones 33 extending circumferentially and uniformly distributed around the X axis, the circumferential ends of the hollow zones 33 forming bearing zones 34 for the elastic members 29, 30.
Les zones creuses 33 et les zones d'appui 34 des deux rondelles de guidage sont situées en regard les unes des autres.  The hollow zones 33 and the bearing zones 34 of the two guide washers are located facing each other.
La périphérie radialement interne de la rondelle de guidage arrière 31 comporte un rebord cylindrique 35 s'étendant vers l'arrière, monté pivotant autour du moyeu d'entrée 7. La périphérie radialement interne de la rondelle de guidage avant 32 est montée pivotante autour du rebord 28 du moyeu de sortie 20.  The radially inner periphery of the rear guide washer 31 comprises a cylindrical rim 35 extending rearward, pivotally mounted around the inlet hub 7. The radially inner periphery of the front guide washer 32 is pivotally mounted around the flange 28 of the outlet hub 20.
Chaque rondelle de guidage comporte des trous 36 servant à l'insertion d'un outil de rivetage, situés en regard des trous 17, 26.  Each guide washer has holes 36 for insertion of a riveting tool, located opposite the holes 17, 26.
Les périphéries radialement externes 37 des rondelles de guidage 31 , 32 s'étendent radialement et sont fixées, par exemple par soudage, de part et d'autre d'un support annulaire 38 s'étendant radialement. Le support 38 s'étend à l'extérieur des rondelles de guidage 31 , 32. Des masses pendulaires 39 sont montées de façon mobile sur le support 38, par l'intermédiaire d'organes roulants, comme cela est connu en soi, de façon à former des moyens d'amortissement permettant d'améliorer la filtration des vibrations et des acyclismes de rotation. The radially outer peripheries 37 of the guide washers 31, 32 extend radially and are fixed, for example by welding, on either side of an annular support 38 extending radially. The support 38 extends outside the guide rings 31, 32. Pendular masses 39 are mounted in a movable manner on the support 38, via rolling members, as is known per se, so as to form damping means for improving the filtration of vibrations and rotational acyclisms.
Pour chaque paire d'organes élastiques 29, 30, un premier organe élastique 29 est agencé pour venir en appui à une première extrémité sur l'une des pattes 13 du voile d'entrée 1 1 et à une seconde extrémité, sur des zones d'appui 34 des rondelles de guidage 31 , 32, un second organe élastique 30 étant agencé pour venir en appui sur les zones d'appui 34 des rondelles de guidage 31 , 32 et sur l'une des pattes 22 du voile de sortie 19. Les organes élastiques 29, 30 s'opposent ainsi au pivotement, autour de l'axe X, du voile d'entrée 1 1 par rapport au voile de sortie 19, ou plus généralement de l'élément d'entrée de couple par rapport à l'élément de sortie de couple.  For each pair of elastic members 29, 30, a first elastic member 29 is arranged to bear at a first end on one of the tabs 13 of the entry web 1 1 and at a second end, on zones support 34 of the guide washers 31, 32, a second resilient member 30 being arranged to bear on the bearing zones 34 of the guide washers 31, 32 and on one of the lugs 22 of the outlet web 19. The elastic members 29, 30 thus oppose the pivoting, around the axis X, of the entry web 1 1 with respect to the output web 19, or more generally of the torque entry element with respect to the torque output element.
Les organes élastiques 29, 30 d'une même paire sont agencés en série par l'intermédiaire des rondelles de guidage 31 , 32, qui forment un organe de phasage de façon à ce que les organes élastiques 29, 30 de chaque groupe se déforment en phase les uns avec les autres autour de l'axe X.  The elastic members 29, 30 of the same pair are arranged in series through the guide rings 31, 32, which form a phasing member so that the elastic members 29, 30 of each group deform into phase with each other around the X axis.
Une première rondelle élastique 40 (figures 3 et 4), déformable élastiquement dans la direction axiale, est intercalée axialement entre la rondelle de guidage arrière 31 et le voile d'entrée 1 1 . Une seconde rondelle 41 élastique, de structure similaire, est intercalée axialement entre la rondelle de guidage avant 32 et le voile de sortie 19. Lesdites rondelles élastiques 40 sont par exemple des rondelles coniques, également appelées rondelles Belleville.  A first elastic washer 40 (FIGS. 3 and 4), resiliently deformable in the axial direction, is interposed axially between the rear guide washer 31 and the inlet web 11. A second elastic washer 41 of similar structure is interposed axially between the front guide washer 32 and the outlet web 19. Said spring washers 40 are for example conical washers, also called Belleville washers.
La périphérie radialement externe de chaque rondelle élastique 40 est en appui sur le voile d'entrée 1 1 ou de sortie 19 correspondant et la périphérie radialement interne de chaque rondelle élastique 40 est en appui sur la rondelle de guidage 31 , 32 correspondante. Bien entendu, l'inverse est également possible. Ces appuis sont continus sur toute la circonférence de façon à assurer une étanchéité au niveau de ces zones. Par ailleurs, les zones externes 14, 23 des parties annulaires des voiles d'entrée et de sortie 1 1 , 19 sont en appui étanche l'une contre l'autre. The radially outer periphery of each elastic washer 40 bears on the corresponding inlet 1 1 or outlet 19 web and the radially inner periphery of each elastic washer 40 bears against the corresponding guide washer 31, 32. Of course, the opposite is also possible. These supports are continuous over the entire circumference to ensure a seal at these areas. Furthermore, the outer zones 14, 23 of the annular portions of the entry and exit webs 1 1, 19 are in tight abutment against each other.
On assure une étanchéité, tout du moins une étanchéité à la graisse, du volume délimité par les rondelles de guidage 31 , 32, le support 38, les voiles d'entrée et de sortie 1 1 , 19, et les rondelles élastiques 40, 41 . Ledit volume loge les organes élastiques 29, 30 et peut être rempli de graisse de façon à assurer une bonne lubrification.  A seal, at least a grease seal, of the volume delimited by the guide washers 31, 32, the support 38, the inlet and outlet webs 1 1, 19, and the spring washers 40, 41 is ensured. . Said volume houses the elastic members 29, 30 and can be filled with grease so as to ensure good lubrication.
En fonctionnement, le couple est transmis par exemple d'un vilebrequin à l'élément d'entrée de couple, puis à l'élément de sortie de couple, au travers des organes élastiques 29, 30 et de l'organe de phasage formé notamment par les rondelles de guidage 31 , 32. En fonctionnement également, l'élément d'entrée de couple, l'organe de phasage et l'élément de sortie de couple peuvent pivoter les uns par rapport aux autres, un tel pivotement générant alors du frottement au niveau des zones de contact entre les deux voiles 1 1 , 19 ou des zones de contact avec les rondelles élastiques 40. De tels moyens de frottement, également appelés moyens d'hystérésis, participent à l'amortissement des vibrations et des acyclismes de rotation, en combinaison avec les organes élastiques 29, 30.  In operation, the torque is transmitted for example from a crankshaft to the torque input element, then to the torque output element, through the elastic members 29, 30 and the phasing member formed in particular by the guide washers 31, 32. In operation also, the torque input element, the phasing member and the torque output member can pivot relative to each other, such pivoting then generating friction at the contact areas between the two webs 1 1, 19 or areas of contact with the spring washers 40. Such friction means, also called hysteresis means participate in damping vibrations and acyclisms of rotation, in combination with the elastic members 29, 30.
La figure 6 illustre une deuxième forme de réalisation de l'invention, qui diffère de celle exposée en référence aux figures 1 à 5, en ce que le support est formé de deux parties annulaires 38a , 38b, les masses pendulaires 39 étant situées axialement entre lesdites parties 38a 38b du support. Par ailleurs, les rondelles de guidage 31 , 32 sont axialement en appui étanche l'une sur l'autre au niveau de leur périphérie externe 37. Les périphéries internes des parties 38a, 38b du support sont fixées de part et d'autre des périphéries externes 37 des rondelles de guidage 31 , 32, par exemple par l'intermédiaire de rivets 42.  FIG. 6 illustrates a second embodiment of the invention, which differs from that described with reference to FIGS. 1 to 5, in that the support is formed of two annular portions 38a, 38b, the pendulum masses 39 being located axially between said portions 38a 38b of the support. Furthermore, the guide washers 31, 32 are axially in sealing engagement with one another at their outer periphery 37. The internal peripheries of the parts 38a, 38b of the support are fixed on either side of the peripheries. 37 of the guide washers 31, 32, for example by means of rivets 42.
La figure 7 illustre une troisième forme de réalisation, qui diffère de celle exposée en référence aux figures 1 à 5 en ce que le voile d'entrée 1 1 s'étend radialement, le voile de sortie 19 étant formé deux parties ou tôles distinctes 19a, 19b, s'étendant radialement et situées axialement de part et d'autre du voile d'entrée 1 1 . La périphérie interne des tôles 19a, 19b est fixée au moyeu de sortie 20 par l'intermédiaire de rivets 43 par exemple. Un patin annulaire 44 en matériau synthétique est monté entre la périphérie radialement interne de chaque rondelle de guidage 31 , 32 et la tôle 19a, 19b correspondante, de manière à assurer l'étanchéité du volume logeant les organes élastiques 29, 30. FIG. 7 illustrates a third embodiment, which differs from that described with reference to FIGS. 1 to 5 in that the inlet web 1 1 extends radially, the outlet web 19 being formed in two parts or separate plates 19a, 19b, extending radially and located axially on either side of the inlet web January 1. The inner periphery of the plates 19a, 19b is fixed to the output hub 20 by means of rivets 43 for example. An annular pad 44 of synthetic material is mounted between the radially inner periphery of each guide washer 31, 32 and the corresponding plate 19a, 19b, so as to seal the volume accommodating the elastic members 29, 30.

Claims

REVENDICATIONS
1 . Dispositif d'amortissement de torsion, comportant au moins un élément d'entrée de couple, au moins un élément de sortie de couple, et au moins un groupe d'organes élastiques (29, 30) montés entre les éléments d'entrée et de sortie de couple, agissant à encontre de la rotation des éléments d'entrée et de sortie de couple l'un par rapport à l'autre, les organes élastiques (29, 30) de ce groupe étant agencés en série par l'intermédiaire d'au moins un organe de phasage de façon à ce que les organes élastiques (29, 30) de chaque groupe se déforment en phase les uns avec les autres autour d'un axe de rotation (X) du dispositif, des rondelles de guidage (31 , 32) situés axialement de part et d'autre des organes élastiques (29, 30) et délimitant entre elles un volume dans lequel sont logés lesdits organes élastiques (29, 30), des moyens d'amortissement pendulaires comportant des masses pendulaires (39) montés de façon mobile sur l'organe de phasage, caractérisé en ce que l'organe de phasage est solidaire ou formé, au moins en partie, par les rondelles de guidage (31 , 32), le dispositif comportant des moyens d'étanchéité (40) délimitant avec les rondelles de guidage (31 , 32) un volume étanche dans lequel sont logés les organes élastiques (29, 30). 1. A torsion damping device having at least one torque input member, at least one torque output member, and at least one group of resilient members (29, 30) mounted between the input and output elements torque output, acting against the rotation of the input and torque output elements relative to each other, the elastic members (29, 30) of this group being arranged in series via at least one phasing member so that the elastic members (29, 30) of each group deform in phase with one another about an axis of rotation (X) of the device, guide washers ( 31, 32) situated axially on either side of the elastic members (29, 30) and delimiting between them a volume in which said elastic members (29, 30) are housed, pendular damping means comprising pendulum masses ( 39) movably mounted on the phasing member, characterized in that the phasing member is integral or formed, at least in part, by the guide washers (31, 32), the device comprising sealing means (40) delimiting with the guide washers (31, 32). ) a sealed volume in which are housed the elastic members (29, 30).
2. Dispositif selon la revendication 1 , caractérisé en ce que les masses pendulaires (39) sont montées de façon mobile sur un support annulaire (38) monté sur les rondelles de guidage (31 , 32).  2. Device according to claim 1, characterized in that the pendulum masses (39) are mounted movably on an annular support (38) mounted on the guide rings (31, 32).
3. Dispositif selon la revendication 2, caractérisé en ce que la périphérie radialement interne du support (38) est fixée de façon étanche axialement entre les périphéries radialement externes (37) des rondelles de guidage (31 , 32).  3. Device according to claim 2, characterized in that the radially inner periphery of the support (38) is axially sealed between the radially outer peripheries (37) of the guide rings (31, 32).
4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que les masses pendulaires (39) sont situées radialement à l'extérieur des organes élastiques (29, 30) et des rondelles de guidage (31 , 32). 4. Device according to one of claims 1 to 3, characterized in that the pendulum masses (39) are located radially outwardly of the resilient members (29, 30) and guide washers (31, 32).
5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que l'élément d'entrée de couple comporte un voile d'entrée (1 1 ) comportant une partie annulaire (12) et des pattes (13) s'étendant radialement vers l'intérieur, les organes élastiques (29, 30) étant agencés pour prendre appui sur lesdites pattes (13) du voile d'entrée (1 1 ). 5. Device according to one of claims 1 to 4, characterized in that the torque input member comprises an inlet web (1 1) having an annular portion (12) and lugs (13) s' extending radially inwards, the resilient members (29, 30) being arranged to bear on said tabs (13) of the entry web (1 1).
6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que l'élément d'entrée de couple comporte une masse d'inertie primaire annulaire (1 ) fixée à une tôle (2) déformable dans la direction axiale (X).  6. Device according to one of claims 1 to 5, characterized in that the torque input element comprises an annular primary mass of inertia (1) fixed to a sheet (2) deformable in the axial direction (X ).
7. Dispositif selon les revendications 5 et 6, caractérisé en ce que l'élément d'entrée de couple comporte un moyeu d'entrée (7) fixé en périphérie radialement interne de la tôle (2), par exemple par l'intermédiaire de rivets, ledit moyeu (7) étant couplé en rotation au voile d'entrée (1 1 ).  7. Device according to claims 5 and 6, characterized in that the torque input element comprises an inlet hub (7) fixed at the radially inner periphery of the sheet (2), for example by means of rivets, said hub (7) being rotatably coupled to the entry web (1 1).
8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que l'élément de sortie de couple comporte un voile de sortie (19) comportant une partie annulaire (21 ) et des pattes (23) s'étendant radialement vers l'intérieur, les organes élastiques (29, 30) étant agencés pour prendre appui sur lesdites pattes (23) du voile de sortie (19).  8. Device according to one of claims 1 to 7, characterized in that the torque output member comprises an output web (19) having an annular portion (21) and lugs (23) extending radially towards the inside, the elastic members (29, 30) being arranged to bear on said tabs (23) of the output web (19).
9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que chaque rondelle de guidage (31 , 32) comporte au moins une zone creuse (33) s'étendant circonférentiellement, destinée à loger, au moins en partie, les organes élastiques (29, 30), lesdits organes élastiques (29, 30) étant agencés pour prendre appui sur les extrémités circonférentielles (34) desdites zones creuses (33).  9. Device according to one of claims 1 to 8, characterized in that each guide washer (31, 32) comprises at least one hollow zone (33) extending circumferentially, intended to accommodate, at least in part, the elastic members (29, 30), said resilient members (29, 30) being arranged to bear on the circumferential ends (34) of said hollow areas (33).
10. Dispositif selon les revendications 6 et 9, caractérisé en ce que les moyens d'étanchéité comportent une première rondelle d'étanchéité (40) en appui axial étanche sur l'une des rondelles de guidage (31 ) et sur le voile d'entrée (1 1 ), et une seconde rondelle d'étanchéité (40) en appui axial étanche sur l'autre rondelle de guidage (32) et sur le voile de sortie (19).  10. Device according to claims 6 and 9, characterized in that the sealing means comprise a first sealing washer (40) in axial sealing engagement with one of the guide washers (31) and on the web of inlet (1 1), and a second sealing washer (40) in axial tight engagement with the other guide washer (32) and the outlet web (19).
1 1 . Dispositif selon la revendication 10, caractérisé en ce que le voile d'entrée (1 1 ) et le voile de sortie (19) comportent chacun une partie annulaire (14, 23) s'étendant radialement, lesdites parties annulaires (14, 23) étant en appui axial étanche l'une sur l'autre. 1 1. Device according to claim 10, characterized in that the inlet web (1 1) and the exit web (19) each comprise a annular portion (14, 23) extending radially, said annular portions (14, 23) being axially tight against one another.
12. Dispositif selon les revendications 5 et 8, caractérisé en ce que le voile de sortie (19) comporte deux parties annulaires (19a, 19b), par exemple deux tôles annulaires, situées axialement de part et d'autre du voile d'entrée (1 1 ).  12. Device according to claims 5 and 8, characterized in that the output web (19) comprises two annular portions (19a, 19b), for example two annular sheets located axially on either side of the entrance web. (1 1).
13. Composant pour système de transmission d'un véhicule automobile, le composant étant notamment un double volant amortisseur, un convertisseur de couple hydrodynamique ou un disque de friction, comprenant un dispositif d'amortissement selon l'une des revendications 1 à 12.  13. Component for a transmission system of a motor vehicle, the component being in particular a double damping flywheel, a hydrodynamic torque converter or a friction disk, comprising a damping device according to one of claims 1 to 12.
14. Ensemble de transmission pour un véhicule automobile de type hybride comprenant une machine électrique et un composant selon la revendication 13 apte à être disposé entre un moteur thermique et une boîte de vitesses.  14. Transmission assembly for a hybrid type of motor vehicle comprising an electric machine and a component according to claim 13 adapted to be disposed between a heat engine and a gearbox.
PCT/EP2017/080927 2016-12-08 2017-11-30 Torsion damping device WO2018104139A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201780075844.4A CN110050145B (en) 2016-12-08 2017-11-30 Torsion damping device
JP2019530650A JP7008072B2 (en) 2016-12-08 2017-11-30 Torsion damping device
DE112017006220.9T DE112017006220T5 (en) 2016-12-08 2017-11-30 torsion damper

Applications Claiming Priority (2)

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FR1662147 2016-12-08
FR1662147A FR3060088B1 (en) 2016-12-08 2016-12-08 TORSION DAMPING DEVICE

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DE (1) DE112017006220T5 (en)
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CN115023561A (en) * 2020-06-10 2022-09-06 舍弗勒技术股份两合公司 Vehicle damper and vehicle
CN113690046A (en) * 2021-07-13 2021-11-23 天长市泽丰电子有限公司 Bobbin damping generating device of coil winding machine for high-frequency transformer production

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WO2013121137A1 (en) * 2012-02-16 2013-08-22 Valeo Embrayages Torsion-damping device comprising two torque output plates arranged on either side of torque input ring
WO2014012736A1 (en) * 2012-07-19 2014-01-23 Zf Friedrichshafen Ag Damper assembly
FR3015380A1 (en) 2013-12-19 2015-06-26 Valeo Embrayages TRANSMISSION ASSEMBLY FOR A HYBRID VEHICLE EQUIPPED WITH A PENDULAR SHOCK ABSORBER

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DE112017006220T5 (en) 2019-08-29
JP7008072B2 (en) 2022-01-25
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CN110050145B (en) 2021-07-20
FR3060088B1 (en) 2019-05-10
CN110050145A (en) 2019-07-23

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