• 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), - at least one pendular body (3) movable relative to the support (2), - at least one rolling member (11) guiding the displacement of the pendulum body (3) with respect to the support (2), and - at least one abutment damping member having in at least one orthogonal plane to the axis of rotation (X) of the support (2) a section (44) having at least two axes of symmetry, this section (44) having an outer contour (41) simultaneously coming into contact with the pendulum body (3) and with the support (2) for relative positions of the pendulum body (3) relative to the support (2).
    公开号:FR3027086A1
    申请号:FR1459836
    申请日:2014-10-14
    公开日:2016-04-15
    发明作者:Roel Verhoog
    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 riveted together. The abutment of the pendulum bodies against the support at the end of their displacement from a rest position creates shocks which are particularly problematic for low rotational speeds of the engine, for example for rotational speeds of less than 1200.degree. rpm measured at the crankshaft. To remedy these shocks, it is for example known to provide all or part of the rivets of each pendulum body of a damping coating, the outer contour of the coating coming into contact with the support while the inner contour of this coating is in contact rivet, and therefore the pendulum body concerned, to cushion the shocks. It is still known, for example from the application DE 10 2009 042 812, to provide a thrust damping member with a connecting beam connecting two pendulum masses of a pendulum body. The abutment damping member has a complex shape making it difficult and expensive to produce. There is a need to overcome the drawbacks associated with shocks between the pendular bodies and the carrier in a relatively simple, efficient and inexpensive manner. The invention aims to meet this need and it succeeds, according to one of its aspects, using a device for damping torsional oscillations, comprising: a support able to move in rotation about an axis, - at least one pendular body movable relative to the support, 3027086 2 - at least one rolling member guiding the displacement of the pendular body relative to the support, and - at least one abutment damping member, having in at least one plane orthogonal to the axis of rotation of the support a section having at least two axes of symmetry, this section having an outer contour simultaneously coming into contact with the pendulum body and with the support for relative positions of the body pendulum relative to the support. As will be seen later, said relative positions may include the rest position of the device, the abutment position against the support of the pendulum body at the end of a displacement in the counterclockwise direction of the pendulum body from the position of rest, and the stop position against the support of the pendulum body after a displacement in the non-trigonometric direction of the pendulum body from the rest position. According to the invention, the contact between the abutment damping member and the pendular body is effected at the outer contour of the abutment damping member, as is the contact between the damping member of the abutment member. stop and support.
    [0002] The abutment damping member has a more regular shape than that of DE 10 2009 042 812, making it simpler and less expensive to manufacture. The abutment damping member may have elastic properties for damping shocks related to the contact between the support and the pendulum body. This damping is then allowed by a compression of the abutment damping member.
    [0003] The abutment damping member is for example elastomer or rubber. 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 intersecting this axis of rotation of the support ", -" angularly "or" circumferentially "means" around the axis of rotation of the support ", -" orthoradially "means" perpendicular to a radial direction ", and -" integral "means" rigidly coupled ". The abutment damping member may be integral with the pendulum body and come permanently facing a surface of the pendular body having in said plane a shape complementary to that of the outer contour of said section of the damping member of stop. As will be seen later, the pendulum body may comprise a first pendulum mass disposed axially on a first side of the support and a second pendulum mass disposed axially on a second side of the support, said pendular masses being secured to each other by means of least one connecting member. The abutment damping member can then come permanently facing a surface of the connecting member without being directly attached to this connecting member. The abutment damping member extends for example between two axial ends and each of these axial ends is fixed on one of the pendular masses, so as to secure the abutment damping member to the pendulum body. The rolling member may have in said plane a circular outer contour and the diameter of this circular contour may be greater than the orthoradial dimension of the section in said plane of the abutment damping member, in particular to the diameter of the section in said plane of the abutment damping member. In other words, in said plane, the orthoradial dimension of the rolling member may be greater than the orthoradial dimension of the abutment damping member.
    [0004] The torsion oscillation damping device has a rest position in which it does not filter the torsional oscillations and in which the pendulum body is stationary relative to the support. According to an exemplary implementation of the invention, the outer contour of the section of the abutment damping member having at least two axes of symmetry in said plane may be circular. According to this example of implementation of the invention, the center of the circle defining in said plane the outer contour of the rolling member and the center of the circle defining in said plane the outer contour of the abutment damping member may be radially aligned when the device is in the rest position.
    [0005] Still according to this example of implementation of the invention, the radius of the circle defining in said plane the outer contour of the rolling member may be greater than the radius of the circle defining in said plane the outer contour of the body member. abutment damping, so that when the torsional oscillation damping device is at rest, the abutment damping member is angularly contained in the angular space defined by the rolling member. The radius of the circle defining the outer contour of the rolling member may be substantially equal to twice the radius of the circle defining the outer contour of the abutment damping member. These rays can respectively be between 4 mm and 6 mm and between 2 mm and 4 mm. In all of the foregoing, the support may comprise a window having a contour with which the outer contour of said section of the abutment damping member engages for the relative positions of the pendulum body relative to the support. The window may have a closed outline. Part of the contour of said section of the abutment damping member may come into contact with the pendulum body and another portion of the contour of said section of the abutment damping member may come into contact with the contour the window formed in the support in the rest position of the device for damping torsional oscillations. In this case, the other part of the contour of said section of the abutment damping member comes for example in contact with a substantially rectilinear area of the contour of the window formed in the support.
    [0006] The device has an abutment position of the pendulum body against the support, at the end of a displacement in the trigonometric direction of the pendular body relative to the support from the rest position, abutment position in which a portion of the outer contour said section of the abutment damping member may come into contact with the pendulum body and wherein another portion of the outer contour of said abutment damping member section may come into contact with the abutment contour. the window in the support. The device has a stop position of the pendulum body against the support, after a displacement in the non-trigonometric direction of the pendular body relative to the support from the rest position, abutment position in which a portion of the outer contour said section of the abutment damping member may come into contact with the pendulum body 15 and in which another part of the outer contour of said section of the abutment damping member may come into contact with the abutment contour. the window in the support. In one or other of these stop positions of the pendular body against the support, the other part of the outer contour of said section of the abutment damping member may come into contact with a zone of the contour of the window having in said plane a shape complementary to that of the contour of said section of the abutment damping member. In other words, according to the invention, the same abutment damping member can both interpose with contact between the pendulum body and the support in the rest position, and interpose with contact between the pendulum body and the support in each stop position after a displacement from the rest position. The same volume of material of the abutment damping member can be compressed to dampen these impacts, whether the device is in the rest position or in one of the abutment positions after a movement from the rest position. Such action of the abutment damping member is for example due to the positioning of the latter radially aligned with the rolling member when the device is at rest. The contour of the window may also have a shape chosen to allow the use of a single stop damping member to dampen these different shocks. As already mentioned, the pendulum body may comprise a first pendulum mass arranged axially on a first side of the support and a second pendulum mass disposed axially on a second side of the support, said pendular masses being secured to one another by at least one liaison body. The connecting member may extend angularly between two ends and the abutment damping member may be arranged angularly at a distance from each end of the connecting member. The connecting member has for example an angular dimension measured from the axis of rotation of the support between its two ends when the device is in the rest position, and the abutment damping member can be arranged exclusively opposite a central zone of the connecting member, this central zone of the connecting member extending on either side of a median axis for the connecting member and this central zone representing 10%, in particular 20%, especially 30%, of the angular dimension of the connecting member. In the rest position of the device, the median axis is oriented radially and it makes an angle equal to half the angular dimension of the connecting member with each radially oriented axis passing through an angular end of the connecting member. . The abutment damping member is for example positioned substantially equidistant from each angular end of the connecting member. According to one embodiment of the invention, the connecting member defines a rolling track cooperating with the rolling member to guide the displacement of the pendulum body. According to this embodiment, the connecting member is received in the window and the abutment damping member is permanently facing a radially inner surface of the connecting member, said surface having in said plane a shape complementary to that of the outer contour of said section of the abutment damping member. According to this embodiment, part of the contour of the window defines a rolling track cooperating with the rolling member to guide the displacement of the pendulum body. According to this embodiment, each window can receive a connecting member, a stop damping member and a rolling member. Each window receives for example a single connecting member, a single stop damping member and a single rolling member. According to another embodiment, through cavities are formed in the support, these cavities being distinct from the window and each of these cavities receiving a rolling member.
    [0007] The running tracks are then defined on the one hand by the contour of these cavities and on the other hand by the contour of cavities formed in the pendulum masses and which also receive the rolling members. According to this other embodiment, the part of the pendulum body opposite which is disposed the stop damping member may be a guide piece through which one or more rivets connecting the pendular masses of the pendulum body, this piece 3027086 6 having an outline whose shape is adapted to cooperate with the edges of the window of the support, the latter optionally having a radially open contour towards the outside. In all of the foregoing, the pendulum body may comprise: two connecting members angularly offset and solidarizing between them the two pendulum masses, and two abutment damping members, each abutment damping member being associated with a liaison body. Two consecutive angularly speaking support windows can then be associated with the same pendulum body, each window receiving one of the connecting members, the associated abutment damping member 10, and a rolling member. When the pendulum body abuts against the support at the end of a movement from the rest position, the two abutment damping members may not be solicited exactly simultaneously, one of the damping members the stop is then biased before the other abutment damping member is. As a variant, the two abutment damping members 15 are solicited exactly simultaneously. 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 of the For the purposes of the present application, an order value of the torsional oscillations is filtered when the amplitude at this order value of the torsional oscillations is reduced by the value of the torsional oscillations, which is different from the first order value. device with a value equal to at least 10% of the amplitude before filtering. Since the device is configured to filter orders, the frequency of the torsional oscillations filtered by the first, respectively second, pendular bodies varies as a function of the rotational speed of the support. The use of the term "order" implies dealing with variable frequencies. In all the foregoing, each running member is for example a roll of circular section in said plane orthogonal 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. 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.
    [0008] As a variant, the shape of the rolling tracks may be such that the pendular bodies are displaced relative to the support at the same time: in translation around a notional axis parallel to the axis of rotation of the support and, also in rotation around the center of gravity of said pendulum body, such a movement being again called a "combined movement" and disclosed for example in the application DE 10 2011 086 532. In all the foregoing, each roll may be solicited only in compression between the rolling tracks mentioned above. The bearing tracks secured to the support and the running tracks integral with the pendulum body and cooperating with the same rolling member may be at least partially radially opposite, that is to say that there are plans perpendicular to the axis of rotation in which these raceways both extend. The device may comprise at least one interposition piece of which at least a portion is axially arranged between the support and a pendulum mass of the pendular body. Such an interposition piece 15 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. Several interposition pieces, for example in the form of pads, may be provided. The interposition pieces are in particular made of a damping material, such as plastic or rubber.
    [0009] The interposition pieces are for example carried by the pendular bodies. The interposition pieces can be positioned on a pendular body so that there is always at least one interposition piece at least a portion of which is axially interposed between a pendulum mass and the support, whatever the positions relative to the support and said mass when moving relative to the support of the pendulum body.
    [0010] In all of the above, the support may or may not be made in one piece. The device comprises for example several pendular bodies, for example a number between two and eight, including three or six pendulous bodies. Another subject of the invention, according to another of its aspects, is 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 can then be one of: - a component web, - a component guide washer, - a component phasing washer, or a separate support 3027086 8 said web, said guide ring and said phasing washer. According to another of its aspects, the subject of the invention is also an assembly for a device for damping torsional oscillations, this device comprising a support movable in rotation about an axis, the assembly comprising: minus a pendular body adapted to move relative to the support in a plane orthogonal to the axis of rotation of the support, and - at least one stop damping member, having in said plane a section having at least two axes of symmetry this section having an outer contour, in particular circular, able to simultaneously come into contact with the pendulum body and with the support for relative positions of the pendular body relative to the support. All or some of the features mentioned above apply to this other aspect of the invention. The invention further relates, in another of its aspects, to a device for damping torsional oscillations, comprising: - a support able to move in rotation about an axis, - at least one pendular body movable relative to the support, - at least one rolling member guiding the displacement of the pendular body relative to the support, and having in at least one plane orthogonal to the axis of rotation of the support a circular section, and 20 - at least one abutment damping member, having in said plane a section whose orthoradial dimension is smaller than the diameter of said circular section of the rolling member, this section of the abutment damping member having an outer contour coming simultaneously contact with the pendulum body and with the support for relative positions of the pendular body relative to the support.
    [0011] The abutment damping member has in particular in said plane a circular section whose radius is less than the radius of the circular section in said plane of the rolling member. 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 device for damping torsional oscillations according to a first example of implementation of the invention, when at rest, - Figure 2 shows the device of Figure 1 with part of the latter exploded, - FIG. 3 is a partial front view of the device of FIG. 1; FIG. 4 is a view similar to that of FIG. 3, when the pendular body is in abutment against the support at the end of a 5 shows in detail a part of the pendulum body and the abutment damping member of the device of FIG. 1; FIG. 6 is a perspective view of the device; FIG. stop cushioning of FIG. 1, and FIG. 7 is a e partial and front view of a torsion oscillation damping device according to a second example of implementation of the invention. FIG. 1 shows a damping device 1 according to an embodiment of the invention. The damping device 1 is of the pendulum oscillator type. 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 hydrodynamic torque converter or a 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. In FIG. 1, the device 1 is at rest, that is to say that it does not filter the torsional oscillations transmitted by the propulsion chain because of the acyclisms of the heat engine. 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 under consideration: a support 2 able to move in rotation about an axis X, and a plurality of pendular bodies 3 movable relative to the support 2. In the example considered, three Pendulum bodies 3 are provided, being uniformly distributed around the periphery of the axis X. The support 2 of the damping device 1 may consist of: - an input element of the torsion damper, 30 - a 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. The support 2 is in particular a guide washer or a phasing washer.
    [0012] In the example under consideration, the support 2 generally has a ring shape having two opposite sides 4 which are here plane faces. As can be seen in particular in FIG. 2, each pendulum body 3 comprises in the example under consideration: 5 - two pendulum masses 5, each pendulum mass 5 extending axially facing one side 4 of the support 2, and - two connecting members 6 solidarisant the two pendulum masses 5. The connecting members 6, also called "spacers", are in the example considered angularly offset.
    [0013] Each connecting member 6 extends partly in a window 9 formed in the support. In the example considered, the window 9 defines a void space inside the support, this window being delimited by a closed contour 10. The device 1 further comprises in the example considered rolling members 11 guiding the displacement of the bodies The rolling members 11 are here rollers of which at least one portion has a circular cross section of radius R. In the example described, the movement relative to the support 2 of each pendulum body 3 is guided by two rolling members 11, each of them cooperating with one of the connecting members 6 of the pendulum body 3.
    [0014] Each rolling member 11 cooperates on the one hand with a rolling track 12 defined by the support 2, and which is here formed by a portion of the contour 10 of the window 9, and on the other hand with a rolling track 13 defined by the pendulum body 3, and which is here formed by a portion of the outer contour of the connecting member 6. More precisely, each rolling member 11 interacts radially internally with the rolling track 13 and radially. outside with the rolling track 12 during its displacement relative to the support 2 and the pendulum body 3, being for example only stressed in compression between the rolling tracks 12 and 13. As shown for example in Figure 3, the tracks of bearing 12 and 13 present in the example described portions radially facing one another.
    [0015] In the example considered, the device 1 further comprises interposing parts 30 arranged axially between each pendulum mass 5 and the support 2. Each interposing part 30 is here distinct from the pendulum mass 5 and the support 2, being 5 For a given pendulum mass 5, four essentially identical interposition pieces 30 may be provided. Among these four interposition pieces 30: 3027086 11 - an interposition piece 30 is disposed at each circumferential and radially outer end of the pendulum mass 5, - an interposition piece 30 is disposed on the radially outer edge of the mass pendulum 5, halfway between the two circumferential and radially outer ends 5 of this mass 5, and - an interposition piece 5 is disposed on the radially inner edge of the pendulum mass 5, halfway between the two ends The circumferential and radially inner portions of this pendulum mass 5. In a variant, the interposition pieces associated with the same mass may have different shapes, from one interposition piece to the other. In another variant, another number of interposition pieces is possible. Each interposing part 30 comprises in the example under consideration: - one or more pins 32 intended to be mounted in a hole 34 formed in the pendulum mass 5 to ensure the attachment to this mass of the interposition piece 30, and an interposition portion 33 disposed between the pendulum mass 5 and the support 2 when the damping device 1 is assembled. The interposition portion 33 has for example a circular shape in a plane orthogonal to the axis X. Each interposition piece 30 is for example in the form of a pad, being in particular made of plastic, but the invention is not limited to this choice of material. As shown in the figures, each connecting member 6 is associated with a single abutment damping member 40 for the displacement of the pendular body 3 relative to the support 2. Each abutment damping member 40 has in the example described a cylindrical portion 44 of circular cross section and which is interposed radially between the connecting member 6 and the support 2, and has an outer contour 41. This portion 44 here has a radius R1 which is smaller than the radius R of the rolling member 11. As shown in particular in FIG. 6, each abutment damping member 40 has two end portions 45 which axially surround the portion 44. The end portions 45 may also be cylindrical with a circular cross-section. , then having a radius less than radius R1. In a particular example, R1 is equal to 3 mm and R is equal to 5 mm. Each end portion 45 may have a tapered free end forming a pin 47 mounted without play or with a slight clearance in a housing 48 formed in one of the pendulum masses 5, so as to secure the abutment damping member 40 with said pendulum mass 5.
    [0016] 3027086 12 As shown in Figure 3, the torsion oscillation damping device is for example such that when the device is at rest, the rolling member 11 comes into contact with the raceway 12 by a point P1 and with the rolling track 13 by a point P2. It can be seen in FIG. 3 that the line (P1P2) intersects the abutment damping member 40 in this rest position of the device 1. The center of the circle defining the outer contour 41 of the portion 44 of the body abutment damping and the center of the circle defining the outer contour of the rolling member 11 also belong in the example described to the same line which also intersects the axis of rotation (X) of the support. As shown in FIG. 5, each connecting member 6 can extend angularly between two angular ends and the abutment damping member 40 associated with said connecting member can be secured to the pendulum masses 5 so as to be disposed substantially halfway between these angular ends of the connecting member 6. The abutment damping member 40 then comes opposite a radially inner edge 47 of the connecting member 6 and this edge 47 has opposite of the abutment damping member 40 a portion whose shape is complementary to the shape of the outer contour 41 of the portion 44 of the abutment damping member 40. Each abutment damping member 40 is provided in the example considered elastic properties for damping shocks related to the contact between the pendulum body 3 and the support 2. The abutment damping member 40 is for example elastomer or cocoa utchouc. As will be seen now, the abutment damping member 40 serves to dampen the shocks associated with the abutment against the support 2 of the pendulum body 3 at the end of a displacement from the rest position. , whatever the direction of this displacement. The abutment damping member can also be used to damp the shocks associated with the radial drop of the pendulum body 3 for low speeds of rotation of the engine of the vehicle, for example when starting or stopping the vehicle. vehicle. In FIG. 3, in which the device 1 is at rest, it can be seen that each connecting member 6 of the same pendulum body 3 rests via the abutment damping member 40 against the support 2. the abutment damping member 40 comes here against a substantially rectilinear zone 30 of the contour 10 of the window 9. FIG. 4 shows the device 1 when the pendulum body is in an abutment position against the support 2, at the resulting from a displacement in the trigonometric direction of the pendulum body 3 relative to the support 2 from the rest position of FIG. 3. In this stop position, a portion of the outer contour 41 of the abutment damping member 40 it comes into contact with the pendulum body 3 and another part of this outer contour 41 comes into contact with a substantially circular zone 10 of the contour 10 of the window 9, so as to dampen the shocks associated with this abutment. Similarly, each abutment damping member 40 also makes it possible to damp the shocks associated with the abutment of the pendulum body 3 against the support 2 at the end of a displacement in the non-trigonometric direction of the body pendulum 3 relative to the support 2 from the rest position. A device 1 according to a second example of implementation of the invention will now be described with reference to FIG. This second example differs from that described with reference to FIGS. 1 to 6 in that the pendulum body 3 and the support 2 have a different structure. The window 9 is here open radially outward, the contour 10 does not define a closed line. The two pendulum masses 5 are in the example of FIG. 7 connected via a plurality of rivets 60 which are received in a guide piece 62. This guide piece 62 has, as can be seen in FIG. 7, angular edges. 64 whose shape can cooperate with that of the contour 10 of the opening 9 to form a stop for the displacement of the pendulum body 3 relative to the support 2. In this example, cavities 66 separate from the window 9 are formed in the support 2 and are substantially axially facing other cavities 70 formed in the pendulum masses 5. Each rolling member 11 is both received in a cavity 66 and in a cavity 70, so as to guide the displacement of the pendulum body 3 relative to the support 2. Similarly to what has been mentioned with reference to the first example of implementation of the invention, a stop damping member 40 is provided to interpose between the piece of 62 and the support 2, while simultaneously being in contact with the latter, in the rest position of the device 1 and in the abutment positions against the support of the pendulum body 3 at the end of a displacement from the position rest, be it a trip in the counterclockwise direction or a non-trigonometric move. The invention is not limited to the examples which have just been described.
    权利要求:
    Claims (21)
    [0001]
    REVENDICATIONS1. Device (1) for damping torsional oscillations, comprising: - a support (2) able to move in rotation about an axis (X), - at least one pendular body (3) movable relative to the support (2), - at least one rolling member (11) guiding the displacement of the pendulum body (3) relative to the support (2), and - at least one abutment damping member (40) having in at least one a plane orthogonal to the axis of rotation (X) of the support (2) a section having at least two axes of symmetry, this section having an outer contour (41) simultaneously coming into contact with the pendulum body (3) and with the support (2) for relative positions of the pendulum body (3) relative to the support (2).
    [0002]
    2. Device according to claim 1, the abutment damping member (40) being integral with the pendulum body (3) and permanently facing a surface (47) of the pendulum body (3) having in said plane a shape complementary to that of the outer contour (41) of said section of the abutment damping member (40).
    [0003]
    3. Device according to one of the preceding claims, the rolling member (11) having in said plane a circular outer contour (41) whose diameter (2 * R) is greater than the orthoradial dimension (2 * R1) of the section in said plane of the abutment damping member (40), in particular to the diameter of the section in said plane of the abutment damping member.
    [0004]
    4. Device according to any one of the preceding claims, having a rest position in which the pendulum body (3) is stationary relative to the support (2).
    [0005]
    5. Device according to any one of the preceding claims, the outer contour (41) of the section of the abutment damping member (40) having at least two axes of symmetry in said plane being circular.
    [0006]
    6. Device according to claims 5, the center of the circle defining in said plane the outer contour of the rolling member (11) and the center of the circle defining in said plane the outer contour (41) of the damping member. stopper (40) being radially aligned when the device (1) is in the rest position.
    [0007]
    7. Device according to any one of the preceding claims, the support (2) comprising a window (9) having a contour (10) with which comes into contact the outer contour (41) of said section of the damping member stop (40) for the relative positions of the pendulum body (3) relative to the support (2).
    [0008]
    8. Device according to claim 7, a part of the contour (41) of said section of the abutment damping member (40) coming into contact with the pendulum body (3) and another part of the contour (41) of said section of the abutment damping member (40) contacting the contour (10) of the window (9) in the support (2) in the rest position of the device (1).
    [0009]
    The device according to claim 8, the other portion of the contour (41) of said section of the abutment damping member (40) coming into contact with a substantially rectilinear area (48) of the contour (10) of the window (9) formed in the support (2).
    [0010]
    10. Device according to any one of claims 5 to 9, the device (1) having an abutment position of the pendulum body (3) against the support (2), at the end of a displacement in the trigonometric direction of the pendulum body (3) relative to the support (2) from the rest position, abutment position in which a portion of the outer contour (41) of said abutment damper member section (40) comes into contact with the pendulum body (3) and in which another part of the outer contour (41) of said section of the abutment damping member (40) comes into contact with the contour (10) of the window (9) arranged in the support (2).
    [0011]
    11. Device according to any one of claims 5 to 10, the device (1) having an abutment position of the pendulum body (3) against the support (2), after a displacement in the direction of no trigonometric device of the pendulum body (3) relative to the support (2) from the rest position, a stop position in which a portion of the outer contour (41) of said section of the abutment damping member (40) comes into contact with the pendulum body (3) and in which another part of the outer contour (41) of said section of the abutment damping member (40) comes into contact with the contour (10) of the window (9) arranged in the support (2). 20
    [0012]
    12. Device according to claim 10 or 11, the other part of the outer contour (41) of said section of the abutment damping member (40) coming into contact with a zone (49) of the contour (10) of the window (9) having in said plane a shape complementary to that of the contour (41) of said section of the abutment damping member (40).
    [0013]
    13. Device according to any one of the preceding claims, the pendulum body (3) comprising a first pendulum mass (5) arranged axially of a first side (4) of the support (2) and a second pendulum mass (5). disposed axially of a second side (4) of the support, said pendular masses (5) being secured to each other by at least one connecting member (6).
    [0014]
    14. Device according to claim 13, the connecting member (6) defining a raceway (13) cooperating with the rolling member (11) to guide the displacement of the pendulum body (3) relative to the support ( 2).
    [0015]
    15. Device according to claim 14, the abutment damping member (40) permanently facing a radially inner surface (47) of the connecting member (6), said surface having in said plane a complementary shape to that of the outer contour (41) of said section of the abutment damping member (40). 3027086 16
    [0016]
    16. Device according to claim 15, the pendulum body (3) comprising: two connecting members (6) angularly offset and solidarizing between them the two pendulum masses (5), each connecting member (6) cooperating with a single organ rolling bearing (11), and two abutment damping members (40), each abutment damping member (40) being associated with a connecting member (6).
    [0017]
    17. Device according to any one of claims 13 to 16, the connecting member (6) extending angularly between two ends and the abutment damping member (40) being disposed substantially equidistant from each end. angular of the connecting member (6).
    [0018]
    18. 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 (1) according to any one of the claims. 1 to 17.
    [0019]
    19. Component according to claim 18, the support (2) of the device being one of: a veil of the component, a guide washer of the component, a phasing washer of the component, or a separate support of said veil , said guide washer and said phasing washer.
    [0020]
    20. An assembly for a device (1) for damping torsional oscillations, the device comprising a support (2) movable in rotation about an axis (X), the assembly comprising: at least one pendulum body ( 3) adapted to move relative to the support (2) in a plane orthogonal to the axis of rotation (X) of the support, and - at least one stop damping member (40), having in said plane a section having at least two axes of symmetry, this section having an outer contour (41), in particular circular, capable of simultaneously coming into contact with the pendulum body (3) and with the support (2) for relative positions of the pendulum body ( 3) relative to the support (2).
    [0021]
    21. Device (1) for damping torsional oscillations, comprising: - a support (2) able to move in rotation about an axis (X), - at least one pendular body (3) movable relative to at the support (2), - at least one rolling member (11) guiding the displacement of the pendulum body (3) with respect to the support (2), and having in at least one plane orthogonal to the axis of rotation (X ) of the support (2) a circular section, and - at least one abutment damping member (40), having in said plane a section whose orthoradial dimension (2 * R1) is smaller than the diameter (2 * R) of said circular section of the rolling member (11), that section of the abutment damping member (40) having an outer contour (41) coming into simultaneous contact with the pendulum body (3) and with the support (2) for relative positions of the pendulum body (3) relative to the support (2).
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    同族专利:
    公开号 | 公开日
    CN106795945B|2020-07-03|
    HUE044477T2|2019-10-28|
    WO2016058950A1|2016-04-21|
    FR3027086B1|2017-03-31|
    EP3207278B1|2019-04-10|
    CN106795945A|2017-05-31|
    EP3207278A1|2017-08-23|
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    法律状态:
    2015-11-02| PLFP| Fee payment|Year of fee payment: 2 |
    2016-04-15| PLSC| Publication of the preliminary search report|Effective date: 20160415 |
    2016-10-28| PLFP| Fee payment|Year of fee payment: 3 |
    2017-10-31| PLFP| Fee payment|Year of fee payment: 4 |
    2018-10-30| PLFP| Fee payment|Year of fee payment: 5 |
    2019-10-31| PLFP| Fee payment|Year of fee payment: 6 |
    2020-10-30| PLFP| Fee payment|Year of fee payment: 7 |
    2021-10-29| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1459836A|FR3027086B1|2014-10-14|2014-10-14|TORSION OSCILLATION DAMPING DEVICE|FR1459836A| FR3027086B1|2014-10-14|2014-10-14|TORSION OSCILLATION DAMPING DEVICE|
    CN201580055884.3A| CN106795945B|2014-10-14|2015-10-09|Torsional oscillation damping device|
    HUE15775731| HUE044477T2|2014-10-14|2015-10-09|Device for damping torsional oscillations|
    EP15775731.1A| EP3207278B1|2014-10-14|2015-10-09|Device for damping torsional oscillations|
    PCT/EP2015/073449| WO2016058950A1|2014-10-14|2015-10-09|Device for damping torsional oscillations|
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