• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    Component (1) for a vehicle transmission system, comprising: - a first subassembly having an input and an output (7) between which a torque can be transmitted, and - a second subassembly forming a pendulum damping device (1), and disposed out of the path of the torque transmitted by the first subassembly, the first and second subassemblies being interconnected by at least one connecting member (30, 40) elastically deformable circumferentially.
    公开号:FR3051859A1
    申请号:FR1654627
    申请日:2016-05-24
    公开日:2017-12-01
    发明作者:Giovanni Grieco；Roel Verhoog
    申请人:Valeo Embrayages SAS；
    IPC主号:
    专利说明:

    Pendulum damping device
    The present invention relates to a pendular damping device, in particular for a motor vehicle transmission system.
    In such an application, the pendulum 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. Such a torsion damping system is for example a double damping flywheel.
    Alternatively, in such an application, the pendulum damping device may be integrated with a friction disc of the clutch or a hydrodynamic torque converter or a flywheel secured to the crankshaft or a double clutch dry or wet.
    Such a pendular damping device conventionally implements a support and one or more pendular bodies movable relative to this support, the displacement relative to the support of each pendular body being guided by one or more rolling members.
    When pairs of high value, also called "superstrain" thereafter, are propagated in the transmission system in which is implanted the pendulum damping device, significant efforts can be applied to the support of the device, the latter being rigidly connected to an element of this transmission system. The support or any intermediate piece allowing this rigid connection between the support and the element of the transmission system can then be weakened, or even break. Such sur-couples occur in particular when the pendulum damping device is integrated in a friction disc of the clutch, since the pendular damping device can then be directly subjected to the torque coming from the gearbox shaft. , that is to say the torque of the wheels of the vehicle.
    In order to protect the pendulum damping device from such high torque values, it is for example known from the application WO 2013/034125 to implant a pendular damping device on a shaft and to interpose between this shaft and the support the pendulum damping device a washer acting as a torque limiter. A torque limiter is expensive, cumbersome, and has a low precision triggering torque. The object of the invention is to protect the pendulum damping device against over-torques, in particular avoiding any shearing forces, whatever their nature, from damaging the pendular damping device. The invention achieves, in one of its aspects, using a component for a vehicle transmission system, comprising: - a first subset having an input and an output between which a torque can be transmitted and a second subassembly forming a pendular damping device and disposed out of the path of the torque transmitted by the first subassembly, the first and the second subassemblies being interconnected by at least one connecting member. elastically deformable circumferentially.
    The connection provided between the first subassembly, arranged in the path of the pair, and the pendular damping device thus makes it possible to absorb at least partially, or in all, the over-couples thanks to the elastic deformation that this connection allows. Unlike the case of a torque limiter, the connecting member permanently connects with the non-zero stiffness the first and the second subassembly, including when over-couples occur.
    For the purposes of the present application: - "axially" means "parallel to the axis of rotation of the support of the pendular damping device", - "radially" means "along an axis belonging to a plane orthogonal to the axis of rotation of the support of the pendular damping device and intersecting this axis of rotation of the support ", -" angularly "or" circumferentially "means" around the axis of rotation of the support of the pendular damping device ", -" orthoradially "means" perpendicular to a radial direction ", -" integral "means" rigidly coupled ", - the rest position of the pendulum damping device is that in which its pendular bodies are centrifuged without being subject to torsional oscillations from acyclisms of the engine. The connecting member may also be elastically deformable axially. In other words, in this case, the connection between the first sub-component arranged in the path of the torque and the pendular damping device not only allows elastic deformation in the circumferential direction, but also in the axial direction. Such a connection then also makes it possible to compensate for axial pumping or bending around an axis perpendicular to the axis of rotation of the support and propagating in the transmission system.
    The second subassembly forming the pendular damping device may be disposed radially outside the first subassembly. The radially outer surface of the first subassembly may define a succession of radial teeth and the radially inner surface of the second subassembly may define a succession of radial teeth.
    A circumferential clearance may exist between the radial teeth of the radially outer surface of the first subassembly and the radial teeth of the radially inner surface of the second subassembly and, from a certain over-torque threshold, this circumferential clearance is filled by the abutment of the teeth between them. This coming into abutment of the teeth of the radially outer surface of the first subcomponent against teeth of the radially inner surface of the second subcomponent produces a free abutment for limiting the elastic deformation in the circumferential direction of the connecting member, and thus to protect this connecting member against excessive deformations that could damage it.
    Each radial tooth of the radially outer surface of the first subassembly may be circumferentially disposed between two consecutive radial teeth of the radially inner surface of the second subassembly, so that when moving on the same periphery, there is an alternation of radial teeth of the radially outer surface of the first subassembly and radial teeth of the radially inner surface of the second subassembly.
    Each radial tooth of the radially inner surface of the second subassembly belongs for example to the support of the pendular damping device. The connecting member can then be connected to the first subassembly via the radial teeth of the latter and be connected to the second subassembly via the radial teeth of the latter.
    According to a first example of implementation of the invention, the connecting member is a corrugated washer fixed both to the first subassembly and the second subassembly, in particular to the support of the pendular damping device. This washer has for example when circumferentially moving a succession of axially offset zones in pairs. Such a washer is for example obtained from an Onduflex® type washer.
    According to this first example of implementation, the component may comprise first fastening elements of the corrugated washer to the first subassembly and second fastening elements of the corrugated washer to the second subassembly, each first circumferentially alternating fastening element. with a second fastener.
    The washer has for example: a plurality of first portions, each first portion receiving a first fastener element of the corrugated washer at the first subassembly and a plurality of second portions, each second portion receiving a second fastener element of the first portion; corrugated washer at the second subassembly, each first portion of the corrugated washer alternating with a second portion of the corrugated washer in the circumferential direction.
    The first portions may occupy a common axial position being the same as that occupied by the second portions. The corrugated washer then comprises other portions axially offset with respect to these first and second portions.
    The first and second connecting elements may be identical to each other, being for example rivets.
    According to the first example of implementation of the invention, the corrugated washer may carry at least one arm bearing axially against one of the first and the second subassembly. This arm can then be arranged radially in the extension of a portion of the corrugated washer receiving a fixing element of the corrugated washer to the other of the first and the second subassembly.
    Such an arm can not only limit the relative axial displacement between the first and the second subassembly, in particular in the case of axial pumping or bending around an axis perpendicular to the axis of rotation of the support, but it can also allow the friction exercise between the first and the second subassembly. This friction can then absorb some of the energy associated with over-couples.
    According to a first variant, the arm bears axially against the second subassembly and is radially disposed in the outward extension of a first portion of the corrugated washer, this first portion receiving a first fastening element. According to this variant, the component may comprise as many arms as first fastening elements of the corrugated washer to the first subassembly. According to this first variant, the arm may be integral with the first subassembly.
    According to a second variant, the arm bears axially against the first subassembly and is arranged radially in the inward extension of a second portion of the corrugated washer, this second portion receiving a second fixing element. According to this variant, the component may comprise as many arms as second fastening elements of the corrugated washer to the second subassembly. According to this second variant, the arm may be integral with the second subassembly.
    In a variant, the component comprises: at least one arm bearing axially against the second subassembly and this arm is arranged radially in the outward extension of a first portion of the wave washer, this first portion receiving a first fixing element, this arm being in particular integral with the first subassembly, and - at least one arm bearing axially against the first subassembly and this arm is arranged radially in the extension towards the inside of a second portion of the corrugated washer, this second portion receiving a second fixing element, this arm being in particular integral with the second subassembly.
    According to this variant, the number of arms may be equal to the sum of the number of first fastening elements and the number of second fastening elements.
    According to a second example of implementation of the invention, the connecting member comprises a plurality of corrugated tongues circumferentially succeeding one another, each corrugated tongue being fastened at the same time to the first subassembly and to the second subassembly, in particular to the support of the pendulum damping device. The presence of these different corrugated tongues may allow to better distribute the circumferential deformations and, where appropriate axial pumping or flexures mentioned above, that the connecting member will compensate in whole or in part. The cost of the connecting member can also be reduced.
    The number of corrugated tongues is for example between two and six, being in particular equal to four.
    Each corrugated tongue has for example when circumferentially moving a succession of axially offset zones two by two.
    Each corrugated tab may be attached to the first subassembly via at least one first fastener and the second subassembly via at least one second fastener, the corrugated tabs being positioned so that when moving on the same circumference there is an alternation of first and second fastening elements. In other words, the corrugated tongues succeeding each other circumferentially are not mounted "head to tail".
    The first and second connecting elements may be identical to each other, being for example rivets.
    Each corrugated tongue has for example: a first portion receiving a first element for fixing the corrugated tongue to the first subassembly and a second portion receiving a second element for fixing the corrugated tongue to the second subassembly. From one corrugated tongue to the other, the first, respectively second, portion may occupy the same circumferential position on the tongue.
    In the same corrugated tongue, the first portion may occupy the same axial position as that occupied by the second portion. The corrugated tongue then comprises at least one portion axially offset with respect to these first and second portions.
    According to the second example of implementation of the invention, the corrugated tongue may carry at least one arm bearing axially against one of the first and the second subassembly. This arm can then be arranged radially in the extension of a portion of the corrugated tongue receiving a fixing element of the corrugated washer to the other of the first and the second subassembly.
    Such an arm can not only limit the relative axial displacement between the first and the second subassembly, in particular in the case of axial pumping or bending around an axis perpendicular to the axis of rotation, but it can also allow the friction exercise between the first and second subassembly to allow to absorb some of the energy associated with over-couples.
    According to a first variant, the arm bears axially against the second subassembly and is radially disposed in the outward extension of a first portion of the corrugated tongue, this first portion receiving a first fastening element. According to this variant, the component may comprise as many arms as first fasteners by considering all the corrugated tongues. According to this first variant, the arm may be integral with the first subassembly.
    According to a second variant, the arm bears axially against the first subassembly and is radially disposed in the inward extension of a second portion of the corrugated tongue, this second portion receiving a second fixing element. According to this variant, the component may comprise as many arms as second fasteners by considering all the corrugated tongues. According to this second variant, the arm may be integral with the second subassembly.
    In a variant, the component comprises: at least one arm bearing axially against the second subassembly and this arm is disposed radially in the outward extension of a first portion of a corrugated tongue, this first portion receiving a first fixing element, this arm being in particular integral with the first subassembly, and - at least one arm bearing axially against the first subassembly and this arm is arranged radially in the extension towards the inside of a second portion of a corrugated tongue, this second portion receiving a second fixing element, this arm being in particular integral with the second subassembly.
    According to this variant, the number of arms may be equal to the sum of the number of first fastening elements and the number of second fastening elements, considering the set of corrugated tongues.
    According to the second example of implementation, at least one corrugated tab may comprise an axial round-trip portion, said portion being received in the free space arranged circumferentially between the first subset and the second subset and defining the circumferential clearance mentioned above.
    According to one or the other of the above embodiments, the connecting member may be made of steel or spring steel.
    In all the foregoing, the pendular damping device may comprise a support movable in rotation about an axis and at least one pendular body movable relative to the support, the displacement of this pendular body being guided by at least one rolling.
    In all the above, the pendulum damping device may comprise two rolling members guiding the displacement of the pendular mass relative to the support.
    Each rolling member may cooperate with at least one first running track secured to the support and with at least one second raceway integral with the pendulum mass.
    According to a first preferred embodiment of the second subassembly of the component, the pendular damping device comprises a single support and each pendular body comprises a first pendulum mass arranged axially on a first side of the support and a second pendulum mass arranged axially of a second side of the support, the first and second pendular masses being rigidly interconnected by one or more connecting struts.
    According to this first preferred embodiment, the rolling member can cooperate with a single first raceway and with only one second raceway, and the second raceway is defined by a connecting strut of the pendulum body. A portion of the outline of this connecting spacer defines for example the second raceway. Alternatively, a coating may be deposited on this portion of the contour of the connecting spacer to form the second raceway. Such a connecting spacer is for example force-fitted via each of its axial ends in an opening in one of the pendular masses. Alternatively, the connecting strut may be welded or screwed or riveted via its axial ends to each of the first and the second pendulum mass.
    According to this first preferred embodiment of the second subset of the component, the displacement of each pendular body relative to the support can be guided by at least two rolling members, including exactly two rolling members. Two connecting struts each cooperating with a rolling member may be provided.
    Each running member can then be solicited only in compression between the first and second raceways mentiormed above. These first and second raceways cooperating with the same rolling member may be at least partly radially opposite, that is to say that there are plans perpendicular to the axis of rotation in which these tracks both extend.
    According to the first preferred embodiment, each running member can be received in a window of the support already receiving a connecting spacer and receiving no other rolling member. This window is for example defined by a closed contour, a portion of which defines the first rolling track secured to the support which cooperates with this rolling member.
    According to a second preferred embodiment of the second subset of the component, the pendulum damping device further comprises a single support and the pendulum body further comprises a first and a second oscillating mass axially offset and rigidly interconnected by one or more spacers of link but each running member cooperates on the one hand with a single single raceway secured to the support, and secondly with two second raceway integral with the pendulum body. Each pendulum mass then has an opening of which part of the contour defines one of these second raceways.
    According to this second preferred embodiment, each connecting strut includes for example several rivets, and this connecting strut is received in a window of the support, while the rolling member is received in an opening of the support, distinct from a window receiving a connecting strut.
    According to this second preferred embodiment, two rolling members can guide the displacement of the pendular body relative to the support, and each rolling member cooperates with a first rolling track dedicated to this rolling member and with two second running tracks dedicated to this running gear.
    According to this second preferred embodiment, each rolling member can then comprise successively axially: a portion disposed in an opening of the first pendulum mass and cooperating with the second rolling track formed by a part of the contour of this opening, a portion disposed in an opening of the support and cooperating with the first raceway formed by a portion of the contour of this opening, and - a portion disposed in an opening of the second pendulum mass and cooperating with the second raceway formed by a portion of the contour of this opening.
    According to the first or second preferred embodiment, two separate connecting members can connect the support of the pendular damping device to the first sub-element, a first connecting member being disposed axially on a first side of the support and a second member of link being axially disposed on a second side of the support.
    Each of these two connecting members is for example according to the first, respectively second, example of implementation as described above. Alternatively, the first connecting member is according to the first example of implementation as described above and the second connecting member is according to the second example of implementation as described above.
    According to a third preferred embodiment, the pendular damping device comprises two axially offset and integral supports, the pendulum body then comprising a single pendular mass disposed axially between the two supports, or the pendulum body comprising a plurality of pendular masses secured to each other. All these pendular masses of the same pendulum body can be arranged axially between the two supports. In a variant, only certain pendulum mass (s) of the pendular body extend (ent) axially between the two supports, other (s) mass (s) pendular (s) of this body pendulum extending axially beyond one or the other of the supports.
    According to this third preferred embodiment, only a connecting member is provided between the first subset and the second subset of the component. This connecting member, which is for example a corrugated washer according to the first example of implementation above or a plurality of corrugated tabs according to the second example of implementation above, connects a single of the supports to the first sub- entire component.
    According to a variant of this third preferred embodiment, two separate connecting members may be provided between the first subassembly and the second subassembly of the component: a first connecting member, for example a corrugated washer according to the first example of setting implemented above or a plurality of corrugated tabs according to the second example of implementation above, connects the first support to the first subassembly, and - a second connecting member, identical or different from the first connecting member, connects the second medium to the first subset of the component.
    In all the above, the pendular damping device may comprise at least one damping member coming into abutment of the pendulum body against the support in the following positions: the position at the end of a displacement in the direction trigonometric device of this pendulum body from the rest position to filter a torsional oscillation, and / or - the position at the end of a displacement in the non-trigonometric direction of this pendulum body from the rest position to filter an oscillation torsion.
    This abutment damping member is then carried by the pendulum body and adapted to simultaneously come into contact with the pendulum body and the support for all or part of the aforementioned relative positions of the pendular body relative to the support.
    Each abutment damping member may be dedicated to a connecting strut of the pendulum body when the latter has two pendulum masses interconnected by such a connecting strut. Each damping member of abutment may have elastic properties for damping shocks related to the abutment of the pendulum body against the support. This damping is then allowed by a compression of the damping member coming into complementary abutment, the latter being for example elastomer or rubber.
    In all the foregoing, at least one of the support and the pendular body may carry at least one axial interposition piece, this axial interposition piece being in particular a coating deposited on the support or the pendulum mass. In a variant, the axial interposition piece may be a pad carried by the support or by the pendular body. This pad can be made of plastic and it can be hung on the support, respectively on the pendulum body, via one or more fastening lugs mounted in one or more holes of the support, respectively of the pendular body. Such an interposition piece can thus limit the axial displacement of the pendular body relative to the support, thus avoiding axial shocks between said parts, and thus wear and unwanted noises, especially when the support and / or the pendulum mass are made of metal.
    Each rolling member is for example a roll of circular section in a plane perpendicular to the axis of rotation of the support. This roll may comprise several successive cylindrical portions of different radius. The axial ends of the roll may be devoid of a thin annular flange. The roller is for example made of steel. The roll may be hollow or full.
    In all the foregoing, the device comprises for example a number of pendulum bodies between two and eight, including three, four, five or six pendulous bodies. All these pendular bodies may succeed one another circumferentially. The device may thus comprise a plurality of planes perpendicular to the axis of rotation in each of which all the pendular bodies are arranged.
    In all that precedes the shape of the aforementioned first and second runways may be such that each pendular body is only displaced relative to the support in translation about a fictitious axis parallel to the axis of rotation of the support.
    As a variant, the shape of the rolling tracks may be such that each pendular body is displaced with respect to the support both: in translation about a fictitious axis parallel to the axis of rotation of the support and also in rotation around the center of gravity of said pendulum mass, such a movement being again called "combined movement".
    Each pendulum body may be tuned to the excitation order of a two-cylinder combustion engine, also called "order 1".
    In all of the above, the support can be made in one piece, being for example entirely metallic.
    The component can be a double damping flywheel, a hydrodynamic torque converter, a flywheel integral with the crankshaft, a double wet or dry clutch, or a clutch friction disc.
    The support of the pendular damping device can then be one of: - a web of the component, - a guide washer of the component. a phasing washer of the component, or a support separate from said web, said guide washer and said phasing washer.
    The support may be disposed at the entry or exit of the component, the terms "entry" and "exit" appraying in the direction of transmission of the engine torque of the crankshaft to the wheels of the vehicle.
    In the case where the device is integrated with a flywheel secured to the crankshaft, the support can be integral with the primary flywheel.
    In a particular case, the component forms a friction disc for clutch. The first subassembly then comprises the hub of the friction disc. In this case, the radial teeth of the first subassembly can be defined by the radially outer surface of this hub.
    In this particular case, the connecting member connects for example the hub of the friction disk to the support of the pendular damping device. The invention will be better understood on reading the following description of nonlimiting examples of implementation thereof and on examining the appended drawing in which: FIG. 1 schematically represents a component for a transmission system with a connecting member according to a first example of implementation of the invention, - Figure 2 shows in isolation the connecting member of Figure 1 - Figure 3 shows a detail of the figure 2, - FIG. 4 represents a detail of FIG. 1, - FIGS. 5 and 6 show, respectively in the exploded state and in the assembled state, a component for a transmission system with a connecting member according to a second example. FIG. 7 is an isolated representation of a corrugated tab of a connecting member according to the second exemplary embodiment of the invention; FIG. 8 represents, similarly to FIG. e 7, a corrugated tab of an alternative of the second exemplary implementation of the invention, and - Figure 9 is a partial view of a transmission system component provided with tabs according to Figure 8.
    FIGS. 1 to 4 show a component for a transmission system 10 according to a first exemplary implementation of the invention.
    This component 10 is here a clutch friction disk, for example associated with a thermal engine including two, three or four cylinders. The component 10 comprises here: - a first subassembly having an input and an output between which a torque can be transmitted, and - a second subassembly forming a pendular damping device 1, and disposed out of the path of the transmitted torque by the first subset.
    Of the first subassembly, only is shown in Figure 1 the hub 7 of the friction disc which defines the torque output of this subset. The entry torque of this first subassembly is, in a known manner, formed by unrepresented friction linings.
    The pendulum damping device 1 formed by the second subassembly comprises in the example in question: a support 2 able to move in rotation about an axis X, and a plurality of pendular bodies 3 that are movable relative to the support 2.
    In the example considered, four pendulous bodies 3 are provided, being uniformly distributed around the periphery of the X axis.
    The support 2 is here made in one piece, having a plate shape extending between two substantially parallel sides 4.
    As can be seen in the figures, each pendulum body 3 comprises in the example under consideration: two pendulum masses 5, one of these pendulum masses 5 being a first pendulous mass 5 arranged axially opposite a first side 4 of the support, the other of these pendulum masses 5 being a second pendulum mass 5 arranged axially facing a second side 4 of the support 2, and - two connecting struts 6 solidarisant the two pendulum masses 5.
    The connecting struts 6 are in the example considered angularly offset.
    In the figures, the pendular damping device 1 is at rest, that is to say that it does not filter the torsional oscillations propagating in the transmission system due to the acyclisms of the heat engine.
    In the example of the figures, each end of a connecting strut 6 is force-fitted into an opening 17 formed in a respective pendulum mass, so as to secure these two pendulum masses 5. In variants, each of these ends could be riveted or welded, or screwed on one of the pendulum masses 5. Each connecting strut 6 extends partly in a window formed in the support 2, this window defining a empty space inside the support 2 delimited by a closed contour 20.
    Although they are not shown, the device 1 still comprises in the example in question rolling members guiding the displacement of the pendular bodies 3 relative to the support 2. The rolling members are for example rollers.
    In the example described, the movement relative to the support 2 of each pendulum body 3 is guided by two rolling members, each of them cooperating here with one of the connecting struts 6 of the pendulum body 3.
    Each rolling member cooperates here with a single first running track secured to the support 2, and with only one second running track secured to the pendulum body 3 to guide the displacement of this pendulum body 3.
    In the example under consideration, each second raceway is formed by a portion of the radially outer edge of a connecting spacer 6.
    Each first rolling track is defined by a part of the outline of a aforementioned window.
    Each first raceway is thus disposed radially facing a second raceway, so that the same running surface of a running gear rolls alternately on the first raceway and on the second raceway. The rolling surface of the rolling member is here a cylinder of constant radius.
    As can be guessed in particular in FIG. 1, the abutment damping members 22 of the pendulum body 3 against the support 2 may be provided. Each connecting strut 6 is then associated with such an abutment damping member 22, each of which is configured to interpose between this connecting strut 6 and the radially inner edge of the window receiving this connecting strut. 6.
    As can be seen in the figures, at least one connecting member 30 connects the hub 7 of the friction disk to the support 2 of the pendular damping device. This connecting member 30 may deform elastically in the circumferential direction and, advantageously, also in the axial direction.
    As can be seen in particular in FIG. 4, the radially outer surface of the hub 7 of the friction disc here defines a succession of radial teeth 27 and the radially inner surface of the support 2 of the pendular damping device 1 defines a succession of teeth. radial 28.
    FIG. 4 also shows that each radial tooth 28 is circumferentially disposed between two consecutive radial teeth 27, so that, when moving on the same periphery, there is an alternation of radial teeth 27 and radial teeth 28.
    According to the first example of implementation of the invention as described with reference to FIGS. 1 to 4, the connecting member is a corrugated washer 31.
    This corrugated washer 31 is fixed both to the hub 7 of the friction disk via the radial teeth 27 and to the support 2 of the pendular damping device 1 via the radial teeth 28. This washer 31 has for example when moving circumferentially a succession of zones axially offset two by two. Such a washer is for example obtained on the basis of an Onduflex®-type washer. It can be seen that the component 1 comprises first fastening elements 35 of the corrugated washer 31 to the radial teeth 27 of the hub 7 of the friction disc 1. and second fastening elements 35 of the corrugated washer 31 to the support 2 of the pendular damping device 1.
    It can be seen in FIG. 1 that each first fastening element 35 alternates circumferentially with a second fastening element 35. Here, all these fastening elements 35 are rivets.
    It can also be seen in FIGS. 1 to 4 that the corrugated washer 31 can have: a plurality of first portions 33, each first portion 33 receiving a first fastener 35 of the corrugated washer 31 at the hub 7 of the friction disc, and a plurality of second portions 34, each second portion 34 receiving a second fastening element 35 of the corrugated washer 31 to the support 2 of the pendular damping device 1.
    It is also noted that each first portion 33 of the corrugated washer 31 alternates with a second portion 34 of the corrugated washer 31 in the circumferential direction.
    It can also be seen in FIG. 2 that the first portions 33 of the corrugated washer 31 occupy in the example under consideration the same axial position which is also that occupied by the second portions 34 of this washer 31. Portions 37 of the washer 31 which are axially offset with respect to these first 33 and second portions 34 also exist.
    It can also be seen, in particular in FIGS. 2 and 3, that the corrugated washer 31 can carry a plurality of arms 36 bearing axially against the support 2 of the pendular damping device 2. Each arm 36 is here arranged radially in the extension of FIG. a portion 33 of the corrugated washer 31 receiving a first fastener 35 to the hub 7 of the friction disc. Such an arm 36 has here a bent free end coming to rub against the support 2 via an axial support.
    It can be seen in FIG. 1 that the number of arms 36 can be equal to the number of first fastening elements 35.
    The corrugated washer 31 is for example made of steel or spring steel.
    In Figures 1 to 4, a single connecting member 30 is shown. However, the component 1 may comprise two separate connecting members 30, each connecting member 30 then being formed by a wave washer 31 as described above. Each washer 31 is then arranged axially on one side of the support 2. In this case, the first fastening elements 35 may be common to the two connecting members 30, just like the second fastening elements 35. In other words, the same rivet 35 may in the example described connect on the one hand the hub 7 to the corrugated washer 31 of the first connecting member 30 and secondly to the corrugated washer 31 of the second connecting member. Two alternatives of a component with a connecting member 40 according to a second exemplary implementation of the invention will now be described with reference to FIGS. 5 to 9.
    FIGS. 5 to 9 show that two connecting members 40 are provided here, one of these connecting members 40 being disposed axially on a first side 4 of the support 2 of the pendular damping device 1 while the other member link 40 is axially disposed on a second side 4 of this support 2.
    According to this second example of implementation of the invention, the connecting member 40 is formed by a plurality of corrugated tongues 41 succeeding each other circumferentially, each corrugated tab 41 being attached to both the first subset and the second sub-assembly. -together. Each corrugated tab 41 is here fixed to a radial tooth 27 of the hub 7 of the clutch disk and to a radial tooth 28 of the support 2 of the pendular damping device 1.
    The number of corrugated tongues 41 is here equal to four.
    Each corrugated tongue 41 has here, when moving circumferentially, a succession of axially offset zones in pairs. Each corrugated tab 41 is fixed to a radial tooth 27 of the hub 7 of the friction disk via a first fastening element 35 and is fixed to a radial tooth 28 of the support 2 of the pendular damping device 1 via a second fastening element 35. It is found that the corrugated tabs 41 are positioned so that moving on the same periphery, there is an alternation of first and second fasteners.
    Each corrugated tab 41 has in FIGS. 5 to 9: a first portion 43 receiving a first fastening element 35 of the corrugated tongue 41 to the hub 7 of the friction disc and a second portion 44 receiving a second fastening element 35. the corrugated tab 41 to the support 2 of the pendular damping device 1.
    It can also be seen in FIGS. 5 to 9 that, from one corrugated tongue to the other, the first and second portions respectively occupy the same circumferential position on the tongue.
    It is also observed in Figures 5 to 9 that in the same corrugated tab 41, the first portion 43 and the second portion 44 occupy the same axial position. The corrugated tongue then comprises a portion axially offset relative to these first 43 and second 44 portions.
    The first 35 and second 35 connecting elements may be identical to each other, here being rivets common to the two connecting members 40.
    Similarly to the first example of implementation described above, each corrugated tongue 41 may carry an arm 46 bearing axially against the support 2 of the pendular damping device 1. This arm 46 is here arranged radially in the extension of a first portion 43 of the corrugated tongue 41. The arm 46 has for example a curved free end coming to rub against the support 2 by axial support. The alternative of FIGS. 8 and 9 differs from that according to FIGS. 5 to 7 in that the portion 48 of the corrugated tongue 41 which is axially spaced from the first 43 and second 44 portions of this corrugated tongue 41 forms an all-rounder. axial return received in a free space arranged circumferentially between a tooth 27 of the hub 7 of the friction disk and a tooth 28 of the support 2 of the pendular damping device 1.
    According to the second example of implementation of the invention, each tongue 41 may be made of steel or spring steel.
    The friction disc 1 may comprise a damper and, where appropriate, also a pre-damper. The invention is not limited to the examples which have just been described.
    权利要求:
    Claims (15)
    [1" id="c-fr-0001]
    claims
    A component (1) for a vehicle transmission system, comprising: - a first subassembly having an input and an output (7) between which a torque can be transmitted, and - a second subassembly forming a device pendulum damping (1), and disposed out of the path of the torque transmitted by the first subassembly, the first and second subassemblies being interconnected by at least one connecting member (30, 40) elastically deformable circumferentially.
    [2" id="c-fr-0002]
    2. Component according to claim 1, the connecting member (30, 40) being also elastically deformable axially.
    [3" id="c-fr-0003]
    3. Component according to claim 1 or 2, the second subassembly (1) being disposed radially outside the first subassembly, the radially outer surface of the first subassembly defining a succession of radial teeth (27), the radially inner surface of the second subassembly defining a succession of radial teeth (28).
    [4" id="c-fr-0004]
    4. Component according to claim 3, each radial tooth (27) of the radially outer surface of the first subassembly being circumferentially disposed between two radial teeth (28) consecutive radially inner surface of the second subassembly, so that moving on the same periphery, there is an alternation of radial teeth (27) of the radially outer surface of the first subassembly and radial teeth (28) of the radially inner surface of the second subassembly.
    [5" id="c-fr-0005]
    5. Component according to any one of claims 1 to 4, the connecting member (30) being a corrugated washer (31) attached to both the first subassembly and the second subassembly.
    [6" id="c-fr-0006]
    6. Component according to claim 5, comprising first fastening elements (35) of the corrugated washer (31) to the first subassembly (7) and second fastening elements (25) of the corrugated washer (31) to the second subassembly (1), each first fastening element (35) alternating circumferentially with a second fastening element (35).
    [7" id="c-fr-0007]
    7. Component according to claim 5 or 6, the corrugated washer (31) carrying at least one arm (36) bearing axially against one of the first and the second subassembly.
    [8" id="c-fr-0008]
    8. Component according to claims 6 and 7, the arm (36) being arranged radially in the extension of a portion (33, 34) of the corrugated washer (31) receiving a fastening element (35) to the other of the first and second subsets.
    [9" id="c-fr-0009]
    9. Component according to any one of claims 1 to 4, the connecting member (40) comprising a plurality of corrugated tongues (41) succeeding each other circumferentially, each corrugated tongue (41) being fixed at the same time to the first sub- together (7) and the second subset (1).
    [10" id="c-fr-0010]
    10. Component according to claim 9, each corrugated tongue (41) being fixed to the first subassembly (7) via at least one first fastening element (35) and the second subassembly (1) via at least one second element fixing (35), the corrugated tongues (41) being positioned so that moving on the same periphery, there is an alternation of first (35) and second (35) fasteners.
    [11" id="c-fr-0011]
    11. Component according to claim 9 or 10, at least one corrugated tongue (41) carrying an arm (46) bearing axially against one of the first and the second subassembly.
    [12" id="c-fr-0012]
    12. Component according to claim 11, the arm (46) being arranged radially in the extension of a portion (43, 44) of the corrugated tongue (41) receiving a fastening element (35) to the other of the first and of the second subset.
    [13" id="c-fr-0013]
    13. Component according to any one of claims 9 to 12, at least one corrugated tongue (41) comprising a portion (48) forming an axial return, said portion (48) being received in a free space arranged circumferentially between the first subset and the second subset.
    [14" id="c-fr-0014]
    14. Component according to any one of the preceding claims, the connecting member (30) being made of steel or spring steel.
    [15" id="c-fr-0015]
    15. Component (1) according to any one of the preceding claims, forming a friction disc for clutch.
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    同族专利:
    公开号 | 公开日
    JP2018013240A|2018-01-25|
    US20170343075A1|2017-11-30|
    EP3249258A1|2017-11-29|
    EP3249258B1|2020-04-29|
    KR20170132683A|2017-12-04|
    FR3051859B1|2020-04-17|
    CN107448497A|2017-12-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2585382A|1948-06-25|1952-02-12|Gen Motors Corp|Torsional vibration damper|
    DE102010049929A1|2009-11-17|2011-05-19|Schaeffler Technologies Gmbh & Co. Kg|Friction clutch with a clutch disc for the transmission of torques|
    DE102013202686A1|2012-03-16|2013-09-19|Schaeffler Technologies AG & Co. KG|Friction coupler for coupling drive shaft of engine of motor car with transmission input shaft, has return spring provided with certain angles formed between attachment points transverse to bending direction|
    DE102013221537A1|2013-10-23|2015-04-23|Schaeffler Technologies Gmbh & Co. Kg|centrifugal pendulum|
    DE102014217845A1|2014-09-08|2016-03-10|Schaeffler Technologies AG & Co. KG|Centrifugal pendulum with speed-dependent Tilgerordnung|
    EP1865217A1|2006-06-07|2007-12-12|LuK Lamellen und Kupplungsbau Beteiligungs KG|Clutch disc|
    DE112012001511A5|2011-03-31|2014-01-23|Schaeffler Technologies AG & Co. KG|Centrifugal pendulum device|
    DE112012003758A5|2011-09-09|2014-08-28|Schaeffler Technologies AG & Co. KG|Centrifugal pendulum and clutch disc with this|
    FR3017674B1|2014-02-14|2016-02-26|Valeo Embrayages|CLUTCH DEVICE, IN PARTICULAR FOR MOTOR VEHICLE|
    DE102014217251A1|2014-08-29|2016-03-03|Schaeffler Technologies AG & Co. KG|centrifugal pendulum|FR3049035B1|2016-03-21|2018-08-17|Valeo Embrayages|SUPPORT FOR PENDULAR DAMPING DEVICE AND PENDULUM DAMPING DEVICE COMPRISING SUCH A SUPPORT|
    DE102018104652A1|2018-03-01|2019-09-05|Schaeffler Technologies AG & Co. KG|Production method of a corrugated spring washer for a centrifugal pendulum device; Centrifugal pendulum device; Clutch disc and drive train|
    DE102020112748A1|2020-05-12|2021-11-18|Schaeffler Technologies AG & Co. KG|Torsional vibration damper|
    法律状态:
    2017-05-30| PLFP| Fee payment|Year of fee payment: 2 |
    2017-12-01| PLSC| Search report ready|Effective date: 20171201 |
    2018-05-28| PLFP| Fee payment|Year of fee payment: 3 |
    2019-05-31| PLFP| Fee payment|Year of fee payment: 4 |
    2020-05-30| PLFP| Fee payment|Year of fee payment: 5 |
    2021-05-31| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1654627A|FR3051859B1|2016-05-24|2016-05-24|PENDULUM DAMPING DEVICE|
    FR1654627|2016-05-24|FR1654627A| FR3051859B1|2016-05-24|2016-05-24|PENDULUM DAMPING DEVICE|
    EP17171456.1A| EP3249258B1|2016-05-24|2017-05-17|Pendulum damping device|
    US15/602,931| US20170343075A1|2016-05-24|2017-05-23|Pendulum-type damping device|
    JP2017101949A| JP2018013240A|2016-05-24|2017-05-23|Pendulum type damper device|
    KR1020170063619A| KR20170132683A|2016-05-24|2017-05-23|Pendulum damping device|
    CN201710372680.3A| CN107448497A|2016-05-24|2017-05-24|Pendulum-type buffer unit|
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