• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Device (1) for damping torsional oscillations, comprising: - a support (2) able to move in rotation about an axis (X), having a window (10) including a part of the contour (11) defines a first rolling track (13), - at least one pendulum body (3) comprising: first and second pendulum masses (5), and at least one connecting member (6) of the first and second masses pendulum (5) matching said masses, a part of a radially outer edge of this connecting member (6) defining a second raceway (14), and - at least one rolling member (16) guiding the displacement of the body pendulum (3) relative to the support (2), the second raceway (14) extending between a first circumferential end and a second circumferential end, at least one of these circumferential ends comprising a housing for receiving a part of the support (2) for certain relative positions of the pendulum body (3) relative to the support (2).
    公开号:FR3037371A1
    申请号:FR1555390
    申请日:2015-06-12
    公开日:2016-12-16
    发明作者:Giovanni Grieco
    申请人:Valeo Embrayages SAS；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a device for damping torsional oscillations, in particular for a motor vehicle transmission system. In such an application, the torsion oscillation damping device may 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 motor acyclisms. Alternatively, in such an application, the torsional oscillation damping device may be integrated with a friction disk of the clutch or with a hydrodynamic torque converter. Such a device for damping torsional oscillations conventionally employs a support and one or more pendular bodies movable relative to this support, the displacement relative to the support of the pendular bodies being guided by rolling members cooperating with one another. on the other hand with rolling tracks integral with the support, and secondly with integral rolling tracks of the pendular bodies. Each pendulum body comprises for example two pendular masses paired between them by a connecting member which also defines the running track integral with the pendular body to which it belongs. Each connecting member may extend in a window formed in the support and a part of the contour defines the rolling track of the support. The support and the connecting member being such that there exists between the contour of the window and one end of the raceway of the connecting member a free space. In certain operating configurations of the device, the rolling member can move beyond the raceways with which it cooperates and escape through the free space between the contour of the window and the connecting member. It is also possible for the bearing member to become wedged between the support and the connecting member. The pendulum body is then no longer guided by this rolling member and the torsion oscillation damping device is no longer able to filter the vibrations due to motor acyclisms. There is therefore a need to prevent the running gear from escaping or jamming as mentioned above. The invention aims to meet this need, and it succeeds, according to one of its aspects, with a device for damping torsional oscillations, comprising: a support able to move in rotation about an axis, having a window of which part of the contour defines a first rolling track, 3037371 2 - at least one pendular body comprising: a first and a second pendular masses axially spaced relative to each other and movable relative to the support, the first pendulum mass being arranged axially on a first side of the support and the second pendulum mass being arranged axially on a second side of the support, and at least one connecting member of the first and the second pendulum masses matching said masses, a portion of a radially outer edge of this connecting member defining a second raceway, and - at least one rolling member guiding the displacement of the pendulum body relative to the support cooperating with the first raceway and the second raceway, the second raceway extending between a first circumferential end and a second circumferential end, at least one of these circumferential ends comprising a housing for receiving a portion of the support for certain relative positions of the pendulum body and the support. In such relative positions and when one is in a plane perpendicular to the axis of rotation of the support, the connecting member extends beyond the window. In other words, there is a circumferential overlap between the connecting member and the support for these relative positions. The housing therefore makes it possible to lengthen the second raceway with respect to the prior art without said raceway coming into contact with the outline of the window prematurely so that the filtering performance is not affected.
    [0002] This extension of the second raceway makes it possible to reduce the free space existing in the window between the circumferential end thereof and the outline of the window. The maximum size of this free space does not allow the rolling member to escape from the second raceway beyond these ends. Thanks to the invention, it thus overcomes the problems of jamming or escaping of the rolling member while maintaining a satisfactory filtration capacity. For the purposes of the present application: - "axially" means "parallel to the axis of rotation of the support", - "radially" means "along an axis belonging to a plane orthogonal to the axis of rotation of the support and cutting this axis of rotation of the support ", -" angularly "or" circumferentially "means" around the axis of rotation of the support "and -" integral "means" rigidly coupled ". - The rest position of a pendulum body is the position in which the pendulum body is subjected to a centrifugal force but not to acyclisms. In other words, the rest position of the device is observed when the support has no angular acceleration.
    [0003] The race track defined by the connecting member corresponds to the portion of the radially outer edge of the latter in contact with the rolling member in one or more positions of this rolling member and extends between two circumferential ends. . The housing may be a groove formed in the circumferential end of the second raceway, this groove may extend axially between two flanges. Alternatively, the housing is different from a groove, only a flange being, for example, provided. The connecting member may extend circumferentially between a first lateral edge and a second lateral edge, respectively associated with the first circumferential end and the second circumferential end. The lateral edges may be flat and parallel to each other.
    [0004] The groove can lead to the side edge associated with the circumferential end of the second raceway in which said groove is formed. The groove may thus extend beyond the circumferential end of the second raceway extending to the circumferential end of the associated connecting member. Only a portion of the radially outer edge of the connecting member defines the second race 15, each circumferential end of said raceway can be moved away from the side edge of the connecting member with which it is associated. The rolling member may cooperate with at least one of the flanges of the connecting member, the latter then defining one end of the second raceway. When the two flanges are identical, the rolling member can cooperate simultaneously with each of these two flanges. Only a portion of each of these flanges can define the end of the second raceway. A portion of each of the flanges may be located between the end of the connecting member and the end of the second associated raceway. Each flange may have bevelled edges so that the rolling member does not wear prematurely. The groove may comprise a plane of symmetry perpendicular to the axis of rotation of the support. The groove can be made by removal of material. Alternatively, the flanges may be inserts and joined by welding to form the connecting member. The axial dimension of the connecting member may be greater than the axial dimension of the support. The groove may have an axial dimension greater than the axial dimension of the support. The axial dimension of the groove may be between 40 and 80% of the dimension of the support, preferably between 50 and 70%. The second running track may have a total length measured along the latter between its circumferential ends and the housing, in particular the groove, may be formed on a fraction of this track having a length of between 5% and 20%. % of the total length. This fraction is preferably disposed at a circumferential end of the second raceway. This fraction of the second raceway may be of reduced axial dimension relative to the remainder of the second raceway, in particular being formed only by the flanges of the groove. Each circumferential end of the second raceway may comprise a housing for receiving a portion of the support in certain relative positions of the pendulum body and the support.
    [0005] Each housing may be provided on a fraction of the second runway of the same length. The accommodations can be identical. In addition, the connecting member may comprise a plane of symmetry comprising the axis of rotation of the support. Each housing may in particular be provided at a circumferential end of the second raceway.
    [0006] Such a connecting member advantageously prevents the rolling member from escaping or jamming at each of the circumferential ends of the second raceway. In all the foregoing, the device may comprise a stop damping member configured to come into simultaneous contact with the support and the pendulum body for all or part of said relative positions of the pendular body relative to the support, this simultaneous contact provoking a compression of this abutment damping member. The abutment damping member may be made of plastic, for example elastomer or rubber. The abutment damping member may be attached to the pendulum masses, in particular mounted forcibly, and affixed to the connecting member, in particular on a radially inner edge of this connecting member. Alternatively, the abutment damping member may be attached to the connecting member by riveting, by welding. The abutment damping member may be formed by two parts, distinct from each other. These first and second parts may be identical and the first part, respectively the second part, is on the side of the first circumferential end, respectively of the second circumferential end, of the second raceway. A radially inner portion of the contour of the window may be formed so that in the relative positions of the pendulum body and the support, each portion of the abutment damping member cooperates with a cavity in the contour of the window. A cavity dedicated solely to the first portion of the abutment damping member may be provided in a first radially inner corner of the window, a cavity dedicated solely to the second portion of the abutment damping member. may be provided in a second radially inner corner of the window, and a central cavity may be provided to receive either one of the first and second portions of the abutment damping member, in the relative position of the pendulum body and support. Alternatively, the two parts of the abutment damping member may be interconnected, the abutment damping member then being formed integrally and covers all or part of the radially inner edge of the member link. In the clockwise direction, when moving from the rest position, the second portion of the abutment damping member may engage the second cavity and the first portion of the abutment damping member. can come into contact with the central cavity. Counterclockwise, when moving from the rest position, the first part of the abutment damping member may come into contact with the first cavity and the second portion of the abutment damping member may come into contact with the central cavity.
    [0007] The connecting member, the contour of the window and the abutment damping member may be such that, when the abutment damping member reaches a state of compression greater than a predefined value, the link comes into direct contact with the contour of the window so as to define a stop position of the pendular body against the support. The pendular body may abut against the support at the end of a displacement of the pendular body relative to the support in the clockwise direction or in the counterclockwise direction. There is then a stop position clockwise and a stop position counterclockwise. The connecting member can abut against the support by each of its aforementioned lateral edges. The rolling member may cooperate with one of the fractions of the second raceway 25 in which the housing, in particular the groove, is formed during compression of the abutment damping member. The rolling member may cooperate with the fraction of the second raceway in which the housing is formed, in particular the groove, associated with the second circumferential end when the first portion of the abutment damping member comes into contact. of the cavity dedicated to it. The rolling member may cooperate with the fraction of the second raceway in which the housing is formed, in particular the groove, associated with the first circumferential end when the second portion of the abutment damping member comes into contact with the the cavity dedicated to it.
    [0008] The abutment damping member may be subjected to compression only when the rolling member cooperates with one of the two fractions of the second raceway in which the housings, in particular the grooves, are formed. In addition, the stop damping member may be subjected to compression when the rolling member cooperates with the second raceway outside the two fractions 5 in which are formed the housing, including the grooves. The relative positions of the pendulum body and the support for which there is an overlap between the support and the connecting member may comprise: the rest position of the device, and the stop position of the pendular body against the support at the resulting from a movement in the clockwise direction from the rest position and / or the stop position of the pendulum body against the support at the end of a movement in the counterclockwise direction from the rest position. In the rest position, each housing of the first and second circumferential ends of the second raceway can receive a portion of the support. There is thus a circumferential overlap between the support and the connecting member in this rest position. Such an overlap makes it possible to have a rolling member with a smaller diameter and thus to increase the travel of the pendulum body. Also, the ratio between its diameter and its dimension in the axial direction can be reduced which gives good stability to this rolling member.
    [0009] In a particular embodiment of the invention, it is also possible for an overlap to exist between the support and the connecting member for: the rest position; one of the stop positions; after a movement of the pendulum body in the clockwise direction, respectively counterclockwise, from the rest position the support may be partly received in one of the housings, respectively in the second housing, and the rolling member may cooperate with the fraction of the second runway in which is formed the other of the two housing. Thus while the housing at one end of the second raceway is formed at an extension thereof to prevent the jamming or exhaust problems mentioned above, the housing present at the Another end of this second raceway avoids an early stop of the displacement of this connecting member by the support, since an axial overlap can then exist between the support and the connecting member. The angular displacement of the center of gravity of the pendular body and therefore the filtering capabilities of the device are thus not affected.
    [0010] The displacement of the pendulum body in the clockwise or counterclockwise direction may be effected up to the stop position of the pendulum body in a clockwise or counterclockwise direction, these positions correspond to the coming into contact of one of the side edges of the connecting member with the support.
    [0011] In the stop position, the distance between the support and the connecting member may be less than the diameter of the running member. In all of the above, the pendulum body may comprise two connecting members and two rolling members, each running member may be associated with a connecting member. The connecting members associated with the same pendulum body may be identical. The connecting members may be angularly offset. Each link member may extend into a dedicated window. The windows can be delimited by a closed contour. Each connecting member may be associated with a stop damping device, this device may be identical for each of the connecting members.
    [0012] Each connecting member may be riveted or welded on each of the pendular masses of the pendulum body which it joins together. The device may comprise a plurality of pendular bodies succeeding one another around the axis of rotation of the support, their number being for example between 2 and 8, in particular 3 or 5. The device is devoid of orthogonal plane to the axis of rotation. wherein only a portion of the pendular bodies are disposed. In this case, the pendular bodies can be axially all aligned. Alternatively, the device may comprise a plurality of planes orthogonal to the axis of rotation in each of which all the pendular bodies are arranged. The faces orthogonal to the axis of rotation of the pendular masses of each pendular body 25 may be strictly plane. In all the foregoing, an interposition piece, also called "pad", may be provided to interpose axially between the support and the pendular masses, so as to avoid axial shocks between them. Alternatively, the device may be free of pads interposed axially between the support and the pendular masses.
    [0013] In all the foregoing, the device may comprise: at least one first pendular body for filtering a first order value of the torsional oscillations, and at least one second pendular body for filtering a second order value. torsional oscillations, different from the first order value.
    [0014] In all the foregoing, each rolling member is for example a circular section roll in a plane perpendicular to the axis of rotation of the support. 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 of the above, the shape of the rolling tracks may be such that the pendulum bodies are 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 the pendular bodies are displaced relative to the support both: in translation around a notional axis parallel to the axis of rotation of the support and also in rotation about the center of gravity of said pendulum body, such a movement being again called "combined movement" and disclosed for example in the application DE 10 2011 086 532. In all the foregoing, the support may or may not be realized of a single room. The invention further relates, in another of its aspects, 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 disk, comprising a device for damping torsional oscillations as defined above. The support of the torsion oscillation damping device may then be one of: - a component web, - a component guide washer, - a component phasing washer, or - a separate support of said web , said guide washer and said phasing washer. 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 is a diagrammatic representation of FIG. partly a first example of a device for damping torsional oscillations; FIG. 2 schematically represents a connecting member of the device of FIG. 1; FIGS. 3 and 4 show schematically and partially a portion of the device of FIG. Figure 1 respectively when at rest and when the pendulum body is in abutment position against the support. FIG. 1 shows a first example of a device 1 for damping torsional oscillations according to the invention. The device 1 is particularly suitable for equipping a motor vehicle transmission system, being for example integrated with a not shown component of such a transmission system, this component being for example a double damping flywheel, a 3037371 9 torque converter. hydrodynamic or friction disc. This component can be part of a propulsion system of a motor vehicle, the latter comprising a thermal engine including three or four cylinders. As known, such a component may comprise a torsion damper having at least one input member, at least one output member, and circumferentially acting elastic return members which are interposed between said input and output elements. exit. For the purposes of the present application, the terms "input" and "output" are defined with respect to the direction of torque transmission from the engine of the vehicle to the wheels of the latter. The device 1 comprises in the example in question: a support 2 capable of moving in rotation about an axis X, and a plurality of pendular bodies 3 movable relative to the support 2. In the example of FIG. 1, three pendulous bodies 3 are provided, being uniformly distributed around the periphery of the axis X. The support 2 of the damping device 1 can be constituted by: - an input element of the torsion damper an output element or an intermediate phasing element disposed between two series of spring of the damper, or an element connected in rotation to one of the aforementioned elements and distinct from the latter, then being for example a support specific to the device 1.
    [0015] The support 2 is in particular a guide washer or a phasing washer. In the example, the support 2, made in one piece, generally has a ring shape having two opposite sides which are here planar faces. As can be seen in FIG. 1, each pendulum body 3 comprises in the example under consideration: a first and a second pendulum mass 5, each pendulum mass 5 being axially spaced relative to one another and movable relative to the support 2, the first pendulum mass 5 being arranged axially on a first side of the support 2 and the second pendulum mass 5 being arranged axially on a second side of the support 2, and - two connecting members 6, identical, matching the two pendulum masses 5.
    [0016] Each pendulum mass 5 is here monobloc and has faces 8 orthogonal to the X axis strictly plane. The connecting members 6, also called "spacers", are in the example considered angularly offset. In the example under consideration, the connecting members 6 are welded to each of the pendulum masses 5.
    [0017] In the example considered, each connecting member 6 extends in part in a window 10 formed in the support 2 and which is dedicated thereto. Each window 10 defines a void space inside the support 2, each window being delimited by a closed contour 11. In the example considered, each connecting member 6 is associated with a stop damping device 12, this device is identical for each of the connecting members 6.
    [0018] The abutment damping device 12, made for example of elastomer, will be described in more detail in the descriptions of the figures which will follow. In the example considered, a portion of the contour 11 of each window 10 defines a first raceway 13 and a portion of a radially outer edge of each connecting member 6 defines a second raceway 14. A running gear 16 cooperates with each first 10 rolling track 13 and each second rolling track 14 to guide the displacement of the pendular bodies 3 relative to the support 2, two connecting members 16 thus guide the displacement of each pendulous body 3. In the example considered each bearing member 16 co-operates radially inwardly with the first rolling track 13 and at the radially outer level with the second rolling track 14, it is therefore stressed in compression between the rolling tracks 13 and 14. As represented by FIG. example in Figure 1, the rolling tracks 13 and 14 have in the example described portions radially facing one another. In the example under consideration, each rolling member 16 is a roll of circular section in the plane of the figure, perpendicular to the axis X. The rolling member 16, for example made of steel, may be hollow or solid. . In the example considered, the pendulum masses 5 of the same pendulum body 3 are also connected by two fasteners 18 each extending into an opening 19 formed in the support 2 and of oblong shape. These fasteners 18 describe two flanges provided to interpose axially between the support 2 and the pendulum masses 5, so as to avoid axial shocks between them. The fasteners 18 also limit the radial play of the pendulum bodies 3 relative to the support 2 so that the radial shocks are limited. The openings 19 are radially below the windows 10 and each fastener 18 is riveted at the circumferential ends of each pendulum mass 5. These openings 19, by their shape, can also define the trajectory of the pendulum bodies 3. In In the example considered, interposition pieces 20, also called "pads", are also provided to interpose axially between the support 2 and the pendulum masses 5, so as to avoid axial shocks between them. In the example considered, an interposition piece 20 is mounted on each of the pendulum masses 5 of the same pendulum body 3 35 and these interposition pieces 20 are axially facing one another. Unlike the flanges which are formed by the fasteners 18, the interposing parts 20 facing each other axially are not bonded together. FIG. 2 shows one of the connecting members 6 of the device 1 described in FIG. 1. In the example under consideration, the second rolling track 14 extends between a first circumferential end 20 and a second circumferential end 21 and each circumferential end 20, 21 of the second connecting track 14 comprises a housing, identical from one circumferential end to the other, for receiving a portion of the support 2 in certain relative positions of the pendulum body 3 relative to this support 2, positions that we will describe in the description of the following figures.
    [0019] In these positions, there is thus a circumferential overlap between the support 2 and the connecting member 6. In the example, each housing is a groove 25 extending axially between two identical flanges 26. The grooves 25 open on a first lateral edge 27 and a second lateral edge 28 between which the connecting member 6 extends circumferentially. These lateral edges 27, 28 are plane and parallel to each other. In other words, each groove 25 extends circumferentially beyond the circumferential end 20, 21 of the second raceway 14, to the end of the connecting member 6. The grooves 25 have, described example, a plane of symmetry perpendicular to the axis X and an axial dimension Dl greater than the axial dimension of the support 2. The axial dimension D1 is for example between 50 and 70%, of the axial dimension of the support 2 In the example considered, the second rolling track 14 has a total length D measured along the latter between its circumferential ends 20, 21 and the groove 24 is formed on a fraction 30 of this track having a length D2 included between 5 and 20% of the total length D of this running track, measured curvilinearly between the ends 25 and 21. These fractions 30 of the second raceway 14 are of reduced axial dimensions with respect to the In the example under consideration, the flanges 26 have chamfered edges and define the second rolling track 14 on the fractions 30. The flanges 26 comprise a flat portion 30 which makes the connection between the edges. the side edges 27, 28 are defined by the flanges 26 at their radially outer ends. Figures 3 and 4 show two of the relative positions of the support 2 and the pendulum body 3 for which there is an overlap between the support 2 and the connecting member 3037371 12 6, namely the rest position of the device 1 in Figure 3, and an abutment position of the pendulum body 6 against the support 2 in Figure 4. With reference to Figures 3 and 4, it is also possible to describe more precisely the abutment damping device 12 The abutment damping member 12 is formed by a distinct and identical first and second part 32 and second part 33. The first portion 32, respectively the second portion 33, is on the side of the first circumferential end 20, respectively of the second circumferential end 21 of the second raceway 14. Each portion 32, 33 of the damping member of stop 12 extends between two axial ends 34 of circular section in a plane perpendicular to the axis X, these circular sections may be smaller in diameter than the diameter of the central portion 35, also of circular section. The axial ends 34 of each part of the abutment damping member 12 are each housed in one of the pendulum masses 5, in particular force-fitted, and each part 32, 33 of the thrust damping member 12 is only affixed to a radially inner edge 36 of the connecting member 6. More specifically, each portion 32, 33 is affixed to a recess 37 of the radially inner edge 36. These recesses 37 are particularly visible in FIG. the radially inner part of the contour 11 of the window 10 is formed so that, in the relative positions of the pendulum body 3 with respect to the support 2, each part 32, 33 cooperates with a cavity formed in the contour 11 of the window 10. the example considered, a cavity 39 dedicated solely to the first portion 32 is formed in a first radially inner corner of the window 10, a cavity 40 dedicated only to the second portion 33 e is formed in a second radially inner corner of the window 10, and a central cavity 41 is formed substantially midway between the cavities 39 and 40, to receive one or the other of the parts 32, 33. In the example considered, the device 1 is in the rest position and the support 2 is received both in the groove 25 formed in the first circumferential end 20 and in the groove 25 formed in the second circumferential end 21.
    [0020] In FIG. 4, the pendulum body 3 is in an abutment position against the support 2. In the example under consideration, the first portion 32 of the abutment damping member 12 is in contact with both the connecting member 6 and the cavity 39 which is dedicated thereto, the second portion 33 is in contact with the central cavity 41 and the connecting member. This simultaneous contact causes compression of parts 32 and 33.
    [0021] This position of the device 1 is observed, for example, at the end of a movement in the anticlockwise direction of the pendulum body 3 with respect to the support 2 from the rest position of FIG. , the rolling member 16 rolls on the two raceways 13 and 14. It is this movement of the pendulum bodies 3 guided by the rolling members 16 which filters acyclisms of the engine.
    [0022] Such displacement of the pendulum body 3 is accompanied by a rolling movement of the connecting member 16 towards the fraction 30 of the second rolling track 14 associated with the second circumferential end 21. rolling member 16 cooperates with the fraction 30 associated with the second circumferential end 21 during the compression of the parts 32, 33 of the abutment damping member 12. Once the abutment damping member 12 contact the support 2, that is to say in a state of compression, the pendulum body 3 can move in the counterclockwise direction until the connecting member 6 comes directly, by its first side edge 27, in contact with the support 2 so as to define a stop position, said stop position in the counterclockwise direction. In this stop position in the counterclockwise direction of the pendulum body 3, the stop damping member 12 reaches a predefined compression state. In this stop position counterclockwise, a part of the support 2 can be received in the groove 25 associated with the first end 20 of the second raceway 14. The support 2 can be received in particular in the groove 25 when the abutment damping member is in compression or before it is in contact with the contour 11 of the window 10. In this stop position in the counterclockwise direction, the free space between the first rolling track 13 and the second circumferential end 21 of the second raceway 14 is such that the running member can not escape.
    [0023] In this abutment position, the distance between the support 2 and the connecting member 6 is less than the diameter of the rolling member 16. All that has been said for a displacement of the pendulum body 3 in the counterclockwise direction applies mutatis mutandis for a clockwise movement. 30
    权利要求:
    Claims (11)
    [0001]
    REVENDICATIONS1. Device (1) for damping torsional oscillations, comprising: - a support (2) able to move in rotation about an axis (X), having a window (10) including a part of the contour (11) defines a first rolling track (13), - at least one pendulum body (3) comprising: first and second pendular masses (5) axially spaced relative to one another and movable relative to the support (2) ), the first pendulum mass (5) being arranged axially on a first side of the support (2) and the second pendulum mass (5) being arranged axially on a second side of the support (2), and at least one link (6) of the first and second pendulum masses (5) matching said masses, a part of a radially outer edge of this connecting member (6) defining a second raceway (14), and - at least a rolling member (16) guiding the displacement of the pendulum body (3) relative to the suppo rt (2) cooperating with the first raceway (13) and the second raceway (14), the second raceway (14) extending between a first circumferential end (20) and a second circumferential end ( 21), at least one of these circumferential ends comprising a housing for receiving a portion of the support (2) for certain relative positions of the pendulum body (3) relative to the support (2).
    [0002]
    2. Device (1) according to claim 1, the housing being a groove (25) formed in the circumferential end (20, 21) of the second raceway (14), said groove extending axially between two flanges ( 26).
    [0003]
    3. Device (1) according to claim 2, the groove (25) having an axial dimension Dl greater than the axial dimension of the support (2).
    [0004]
    4. Device (1) according to any one of the preceding claims, the second raceway (14) having a total length D measured along the latter between its circumferential ends (20, 21), and the housing being arranged on a fraction (30) of this track having a length D2 between 5% and 20% of the total length D.
    [0005]
    5. Device (1) according to any one of the preceding claims, each circumferential end (20, 21) comprising a housing for receiving a portion of the support (2) in certain relative positions of the pendulum body (3) relative to the support (2).
    [0006]
    6. Device (1) according to any one of the preceding claims, comprising a stop damping member (12) configured to come into simultaneous contact with the support (2) and the pendulum body (3) for all or part of said relative positions of the pendulum body (3) relative to the support (2), this simultaneous contact causing compression of the abutment damping member (12). 3037371 15
    [0007]
    7. Device (1) according to claim 6, the connecting member (6), the contour (11) of the window (10) and the abutment damping member (12) being such that when the abutment damping member (12) reaches a state of compression greater than a predefined value, the connecting member (6) comes into direct contact with the support (2) so as to define an abutment position of the pendulum body (3) against the support (2).
    [0008]
    8. Device (1) according to claim 5 and one of claims 6 or 7, the running member cooperating with one of the fractions (30) of the second raceway (14) in which the housing is formed, including the groove (25) during compression of the abutment damping member (12). 10
    [0009]
    9. Device (1) according to any one of the preceding claims, said relative positions of the pendulum body relative to the support comprising: - the rest position of the device (1), and - the stop position of the pendulum body (3) against the support (2) after a movement in the clockwise direction from the rest position and / or the stop position of the pendulum body (3) against the support (2) at the end of a counterclockwise movement from the home position.
    [0010]
    10. Device (1) according to any one of the preceding claims, each pendulum body (3) comprising two connecting members (6) and two rolling members (16), each rolling member (16) being associated with an organ link (6).
    [0011]
    11. 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 (1) according to any one of the claims. 1 to 10.
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    FR3038953A1|2017-01-20|TORSION OSCILLATION DAMPING DEVICE
    EP3207279B1|2019-06-12|Device for damping torsional oscillations
    FR3088397A1|2020-05-15|PENDULUM DAMPING DEVICE
    FR3033860B1|2019-11-22|TORSION OSCILLATION DAMPING DEVICE
    FR3021080A1|2015-11-20|TORSION OSCILLATION DAMPING DEVICE
    FR3032764A1|2016-08-19|TORSION OSCILLATION DAMPING DEVICE
    EP3458742A1|2019-03-27|Device for damping torsional oscillations for a vehicle transmission system
    EP3271610A1|2018-01-24|Device for damping torsional oscillations for a vehicle transmission system
    EP3948015A1|2022-02-09|Pendulum damping device
    FR3035943A1|2016-11-11|PENDULAR MASS FOR TORSION OSCILLATION DAMPING DEVICE
    WO2018104491A1|2018-06-14|Pendulum damping device
    EP3073147A1|2016-09-28|Device for damping torsional oscillations in a vehicle transmission system
    FR3081198A1|2019-11-22|PENDULAR DAMPING DEVICE
    FR3083281A1|2020-01-03|PENDULAR DAMPING DEVICE WITH ELASTOMERIC STOP
    同族专利:
    公开号 | 公开日
    FR3037371B1|2017-07-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2013057440A1|2011-10-19|2013-04-25|Valeo Embrayages|Pendulum-oscillator-type damping system comprising an improved guiding device|FR3083281A1|2018-06-28|2020-01-03|Valeo Embrayages|PENDULAR DAMPING DEVICE WITH ELASTOMERIC STOP|
    FR3085732A1|2018-09-11|2020-03-13|Valeo Embrayages|PENDULUM DAMPING DEVICE|
    WO2020216447A1|2019-04-25|2020-10-29|Volvo Truck Corporation|A pendulum weight, a centrifugal pendulum absorber, a flywheel arrangement and a method of manufacturing a flywheel arrangement|
    法律状态:
    2016-07-08| PLFP| Fee payment|Year of fee payment: 2 |
    2016-12-16| PLSC| Search report ready|Effective date: 20161216 |
    2017-06-30| PLFP| Fee payment|Year of fee payment: 3 |
    2018-06-27| PLFP| Fee payment|Year of fee payment: 4 |
    2020-06-30| PLFP| Fee payment|Year of fee payment: 6 |
    2021-06-30| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1555390A|FR3037371B1|2015-06-12|2015-06-12|TORSION OSCILLATION DAMPING DEVICE|FR1555390A| FR3037371B1|2015-06-12|2015-06-12|TORSION OSCILLATION DAMPING DEVICE|
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