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    • 专利摘要:
    The invention relates to a torsion damping device (4) comprising: - a first movable element (13, 14) and a second movable element (15, 16) movable in rotation about an axis X, coaxial, - a central hub rotatably coupled to the second member; - at least one group of resilient members (25,26) acting against rotation of first member and second member relative to each other; a phasing member (32,33), formed by two parts (32,33) for arranging the elastic members of this group in series so that the elastic members of each group deform in phase with each other, and a pendular damper (48) rotatably connected to the phasing member, the phasing member being centered on the central hub by means of the pendulum damper.
    公开号:FR3039238A1
    申请号:FR1557110
    申请日:2015-07-24
    公开日:2017-01-27
    发明作者:Gilles Lebas；Roel Verhoog；Thibault Laforge；Franck Cailleret；Emmanuel Commeine
    申请人:Valeo Embrayages SAS；
    IPC主号:
    专利说明:

    TORSION DAMPING DEVICE FOR A MOTOR VEHICLE TRANSMISSION SYSTEM
    The present invention relates to a torsion damping device, in particular for a motor vehicle transmission system.
    In such an application, the torsion damping device can be integrated with a torsion damping system of a clutch capable of selectively connecting the heat engine to the gearbox, in order to filter the vibrations due to the acyclisms of the engine. .
    Alternatively, in such an application, the torsion damping device may be integrated with a double damping flywheel, a friction disc of the clutch or a hydrodynamic torque converter. The invention also relates to a transmission assembly for a hybrid type of motor vehicle in which an electric machine is arranged in the transmission chain between the engine and the gearbox.
    Such a device generally comprises a torque input member, a torque output member, and resilient members mounted between the input member and the torque output member and acting against the rotating the input member and the torque output member relative to each other.
    When the torque transmission device is LTD (Long Travel Damper) type, it comprises several groups of elastic members, the elastic members of the same group being arranged in series via a phasing member so the elastic members of each group deform in phase with each other.
    Such a phasing member has a reduced stability since it is centered essentially by the elastic members. The invention aims in particular to provide a simple, effective and economical solution to this problem. For this purpose, it proposes a torsion damping device, for a motor vehicle, comprising: a first movable element adapted to receive an input torque and a second movable element capable of transmitting an output torque, the first element and the second element being rotatable about an axis X, coaxial, - a central hub rotatably coupled to the second element and adapted to be connected to an input shaft of a gearbox, - at least one group of elastic members mounted between the first element and the second element and acting against the rotation of the first element and the second element relative to each other, - a phasing member, rotatable about the X axis and formed by a first portion and a second portion, for arranging the elastic members of this group in series so that the elastic members of each group deform in phase with each other. s other, and - a pendulum damper comprising a pendulum support member adapted to move in rotation about the axis of rotation on which is mounted movable at least one feeder, the pendulum support member being rotatably connected to the phasing member, the phasing member being centered on the central hub via the pendulum support member.
    According to one embodiment of the invention, the device comprises a bearing is mounted between the pendulum support and the central hub.
    According to one embodiment, the bearing may be a plain bearing or rolling bearing or a conical bearing.
    The conical bearing forms by its cone both a centering and an axial stop. It makes it possible to accept the misalignment of the input shaft of the gearbox and the output of the motor (misalignment, angular defect).
    According to one embodiment of the invention, the bearing is formed of a single piece.
    According to one embodiment of the invention, the input element is formed by a first guide ring and a second guide ring connected together, the bearing for centering the pendulum support and one of the washers. guidance.
    According to one embodiment of the invention, the central hub comprises a radial portion and a cylindrical portion from which the radial portion extends, the bearing is formed by a first piece and a second piece, which are separate from each other. the other, the first part being close to the radial part and the second part being away from the radial part.
    According to one embodiment of the invention, the input element is formed by a first guide ring and a second guide ring connected together, the first part of the bearing for centering one of the guide washers. and the second piece of the bearing for centering the pendulum support.
    According to one embodiment of the invention, the second bearing forms an axial abutment and the radially inner periphery of the pendulum support has a complementary surface to the axial abutment, the axial abutment being configured in such a way as to prevent the axial displacement of the support. pendulum towards the radial portion of the hub.
    According to one embodiment of the invention, the first bearing comprises an axial protrusion serving as an axial bearing surface for the second guide ring. The invention also relates to a component for a transmission system of a motor vehicle, the component being in particular a double damping flywheel, a hydrodynamic torque converter or a friction disc, comprising a damping device as previously described. The invention finally relates to a transmission assembly for a motor vehicle, intended to be disposed between a heat engine equipped with a crankshaft and a gearbox equipped with an input shaft, said assembly comprising: - an electric machine having a stator and a rotor movable in rotation about an axis X; a clutch arranged to couple or uncouple in rotation the crankshaft of the engine and the rotor; - A torsion damping device as described above, the damping device being arranged to transmit a torque and dampen the rotation acyclisms between the rotor and the input shaft of the gearbox. The invention will be better understood and other details, features and advantages of the invention will appear on reading the following description given by way of non-limiting example with reference to the accompanying drawings, in which: FIG. a transmission assembly, according to one embodiment of the invention; - Figure 2: A half-view in axial section of a friction clutch comprising a torsion damping device, according to one embodiment of the invention; - Figures 3a and 3b: three-dimensional representations of the damping device according to a first side of said device and respectively according to a second side of said device, according to one embodiment of the invention. - Figures 4a and 4b: schematic representations of the web and the phasing member in abutment in the forward direction (D) and in the retro direction (R) respectively; - Figure 5: a perspective representation of a web of a torsion damping device, according to one embodiment of the invention; - Figure 6: a perspective representation of a first face of the phasing member, according to one embodiment of the invention; FIG. 7: a perspective representation of a second face of the phasing member, according to the same embodiment as that of FIG. 6; - Figure 8a: a schematic representation of the damping device, according to one embodiment of the invention; - Figures 8b and 8c: cross sections of the damping device along an axis A and a B axis of Figure 8a; - Figure 9: a representation of a damping device comprising a stop element, according to one embodiment of the invention; - Figure 10: a perspective view of the damping device according to Figure 9, according to one embodiment of the invention; - Figure 11: a representation of a transmission assembly, according to one embodiment of the invention; - Figure 12: A representation of a damping device, according to one embodiment of the invention of the invention; - Figure 13: A representation of a damping device, according to a variant of the invention; - Figure 14: A partial sectional view of a damping device, according to a variant of the invention; FIG. 15: A sectional view illustrating a damping device according to the variant as illustrated in FIG. 14, and FIG. 16: a partial sectional view of a damping device, according to an embodiment of FIG. invention.
    In the description and the claims, the terms "external" and "internal" as well as the "axial" and "radial" orientations will be used to denote, according to the definitions given in the description, elements of a transmission assembly. By convention, the "radial" orientation is directed orthogonally to the X axis of rotation of the transmission assembly determining the "axial" orientation and, from the inside to the outside away from said axis. The terms "external" and "internal" are used to define the relative position of one element with respect to another, with reference to the X axis, an element close to the axis is thus described as internal as opposed to an outer member located radially peripherally. Moreover, the terms "rear" AR and "front" AV are used to define the relative position of one element relative to another and with respect to the direction of advance of the vehicle when the vehicle is traveling forward.
    FIG. 1 illustrates a transmission assembly disposed between a heat engine 1 and a gearbox 2 according to one embodiment of the invention. The transmission assembly includes a first friction clutch 330, a torsion damping device 4, an electric machine 500 comprising a stator 501 and a rotor 502 and a second friction clutch 340.
    2 illustrates the first friction clutch 330 associated with the torsion damping device 4. The first friction clutch 330 is connected to a flywheel 3. The flywheel 3 comprises a first annular portion 6 extending radially. and a cylindrical portion 7 extending axially rearwardly from the outer periphery of the first annular portion 6. A second cylindrical portion 8 and an annular cover 9 are fixed on the cylindrical portion 7. The first annular portion 6, the cylindrical portion 7 and the second annular portion 8 define an annular chamber 10.
    The flywheel 3 also has orifices (not shown) formed in the first annular portion 6. Screws (not shown), engaged in the orifices allow the attachment of the flywheel 3 at the end of the crankshaft . The friction clutch 330 comprises a reaction plate formed by the second annular portion 8, a pressure plate 11 and a friction disk 12. The pressure plate 11 is axially movable so as to be brought into contact with the disk friction 12 at the moment of transmission of torque between the engine and the input shaft of the gearbox. An actuating element or annular diaphragm 96 axially urges the pressure plate 11 against the friction disk 12 and the reaction plate 8.
    In a variant not shown, the clutch can be of the normally open type. In this case, it is the movement of a clutch abutment (not shown) towards the rear which makes it possible to solicit, via the diaphragm 96, the pressure plate 11 in the direction of the reaction plate. clutch normally open, the diaphragm 96 has a resilience to bring his fingers back to a position before rest. The torsion damping 4 comprises a rear guide washer 13 remote from the engine 1 and a front guide ring 14 close to the engine 1. The torsion damping device 4 also comprises a sail 15 and a splined hub 16 forming in this example a monobloc assembly. Alternatively, the web 15 and the splined hub 16 could form two separate parts and be attached to each other by means of rivets or a weld. The splined hub 16 is intended to cooperate with complementary shaped splines carried by the rear end (not shown) of the input shaft of the gearbox 2.
    The rear guide washers 13 and front 14 are arranged axially on either side of the web 15. The rear guide washer 13 is fixed to the friction disk 12 by means of fasteners such as screws or screws. rivets (not shown). The rear guide washer 13 has at least one hole 107. In one example, the rear guide washer 13 has six holes such as 107 distributed circumferentially.
    Furthermore, the rear guide washers 13 and 14 before are centered and guided in rotation on the splined hub 16 by means of a rear bearing 17 and a front bearing respectively 18. Each of the bearings 17 and 18 can form a bearing smooth or rolling bearing
    Each of the bearings 17 and 18 has an L shape. The rear bearing 17 and the front bearing 18 are placed in abutment against a radial portion 101 of the hub 16. The central hub 16 also has a cylindrical portion 102 from which extends the radial portion 101. The cylindrical portion 102 has on an inner periphery a toothing complementary to that of the rear end of the input shaft of the gearbox 2.
    Each of the rear guide washers 13 and front 14 has an inner rim 19 and 20 respectively defining a bearing surface for the corresponding bearing. Furthermore, each of the bearings 17 and 18 has a radially inner face respectively 21 and 22 which cooperates with an annular outer surface 23 and 24 respectively of the splined hub 16 for the rotational drive of the bearings 17 and 18 by the hub 16. The front bearing 18 forms an axial protuberance 99 extending forwardly.
    At least one of the bearings 17 or 18 could be replaced by a conical bearing 105 as illustrated in FIG. 16. This results in a conical bearing on the hub 16 in order to absorb any misalignment of the shaft of input to the gearbox and the motor output shaft.
    The torsion damping device 4 further comprises a plurality of groups of two elastic members 25,26 ensuring a coupling between the two guide rings 13,14 and the web 15. The elastic members 25,26 here are elastic members rights distributed circumferentially on the same circle around the X axis. The springs could be curved.
    Each elastic member may comprise two coaxial springs mounted one inside the other. In the embodiment shown, the torsion damping device 4 comprises three groups of two straight elastic members.
    Figures 3a and 3b, the resilient members are housed in a housing chamber defined by annular portions stamped such as 27 and 270 formed in the guide rings respectively 13 and 14 and extending circumferentially.
    Furthermore, each group of elastic members extends circumferentially, on the one hand, between two bearing seats (not shown) carried by the guide washers 13 and 14 and, on the other hand, between two legs of 59,60 circumferentially consecutive support of the web 15.
    Indeed, Figure 4, the web 15 has three support lugs 59,60 and 61. Each of them comprises two bearing surfaces 62,63 substantially planar for supporting the ends of the elastic members 25,26. The lugs 59,60,61 of the web 15 may further comprise retaining lugs (not shown) which extend circumferentially on either side of the tabs and allow the ends of the resilient members 25,26 to be retained radially.
    The web 15 is mounted fixed in rotation on the splined hub 16. The web 15 has a radially inner portion 64 and a radially outer portion 65 interconnected by the support lugs 59, 60, 61. The radially outer portion 65 forms a ring. It should be noted that the radially inner portion 64 of the web 15 coincides with the radial portion 101 of the hub 16. The support tabs 59, 60, 61 extend to form an angular section widening near the portion radially external 65.
    The radially inner portion 64 and the radially outer portion 65 delimit radially between two support legs circumferentially following a window 70 to accommodate two elastic members 25, 26 of the same group of elastic members.
    In an example not shown, the tabs 59, 60 and 61 of the web 15 may also comprise at their outer radial end projecting elements arranged to cooperate at the end of the race with abutment surfaces carried by at least one of the washers. guidance 13,14. Thus, the angular travel of the guide washers relative to the web 15 is limited in order to protect the elastic members.
    2, the elastic members of each group are connected in series via at least one phasing member 32, 33. In the example according to the invention, the phasing member is formed of two phasing rings. , a rear phasing washer 32 and a front phasing washer 33. The two phasing washers 32,33 are mounted free to rotate with respect to the guide washers 13,14, on the one hand, and with respect to the veil 15, on the other hand. The two phasing washers 32, 33 are disposed on either side of the web 15. The two phasing washers 32 and 33 are coaxial.
    The phasing washers 32, 33 are each spaced axially from the second web 15 with a minimum operating clearance, for example from 0.1 to 1 mm.
    The phasing washers 32, 33 are centered and guided in rotation on the splined hub 16 by the web 15. To do this, the rear phasing washer 32 and the forward phasing washer 33 respectively comprise, at their inner periphery, a lateral face. before 34 and a rear side face 35 intended to come to the eye, respectively to contact a rear side face 36 and a front lateral face 37 of the sail 15, at a location where the inner annular portion 64 of the veil is located 15. It should be noted that the axial protrusion 99 of the bearing 18 serves as the axial bearing face for the front phasing washer 33.
    2 and 6, the phasing washers 32, 33 are interconnected by at least one connecting means 57. The two phasing washers 32, 33 are each formed by a sheet. The rear phasing washer 32 has, at the place where is made the connection of the two phasing washers 32,33 between them, a stamped form 58 allowing a localized approach of the two phasing washers 32,33 between them. This approximation ensures axial and radial retention of the phase washers 32, 33 between them and also with respect to the web 15.
    In the example according to one embodiment of the invention, it is the rear phasing washer 32 which has the stamp 58 but it could be formed by the front phasing washer 33 only or else by the two washers of phasing 32,33.
    In the example, the front phasing washer 33 is flat.
    6 each of the phasing rings comprises radial phasing tabs 28,29,42 which are each interposed between a first elastic member 25 and a second elastic member 26, so that the two consecutive elastic members 25,26 of the same group are arranged in series. The radial phasing tabs 28, 29, 42 comprise two substantially planar bearing faces 73, 74 forming an angle between them and serving to support the ends of the elastic members 25, 26. Each radial phasing tab may furthermore comprise, on its radially outer edge, two opposite external retaining lugs (not shown) extending on either side of each radial phasing lug and making it possible to retain the ends radially and axially. elastic members. The phasing member 32,33 ensures a deformation of the elastic members in phase with each other so that the elastic forces generated in the torsion damping device 4 are distributed circumferentially, homogeneously.
    Thus, in operation, each group comprises a first elastic member 25 bearing at a first end against a bearing seat carried by the guide rings 13,14 and at a second end against a radial tab 28,29,42 of phasing of the phasing member 32,33 while the second elastic member 26 bears at a first end against said radial tab 28,29,42 phasing of the phasing member 32,33 and at a second end against a leg 59,60,61 of the web 15. Therefore, a driving torque is transmitted from the guide rings 13,14 to the web 15 by means of the elastic members 25,26.
    Each of the rear phasing washers 32 and 33 before has a radially outer portion 38,39 spaced apart from each other, Figure 6.
    Each of the rear phasing washers 32 and 33 before has a radially inner portion 40,41 spaced from each other, Figure 6.
    The phasing tabs 28, 29, 42 extend radially from the radially inner portion 40, 41 of each of the phasing washers 32, 33 to the radially outer portion 38, 39 with a proximal end 43 close to the radially inner portion 40. , 41 thinner than a distal end 44 remote from the radially inner portion 40,41. The phasing tabs 28, 29, 42 extend in the form of an angular sector. The stamp 58 is made at these phasing tabs, preferably at a location near the radially outer portion 38,39.
    Circumferentially, between two phasing tabs and between the radially inner portion and the radially outer portion is defined a window 71 for accommodating two elastic members or springs 25,26. In the example illustrated in FIG. 6, the spring 25 has a measured length circumferentially smaller than the length of the second spring 26. But it could also be considered the opposite case, with the spring 25 of greater length than that of the second spring 26 (example not shown).
    The web 15 and the phasing washers 32, 33 have the same radius. Neither the veil 15 nor the phasing washers 32, 33 protrude from each other. Thus, the damping device according to the invention is advantageously bulky radially.
    In the embodiment shown in FIGS. 5 and 7, the web 15 comprises at least one rear axial stud 66 and at least one axial stud 67. Each of these studs 66, 76 forms a protuberance which extends axially relative to each other. to the axis of rotation X of the damping device 4 and relative to the plane in which the web 15 extends.
    The rear phasing washer 32 and the front phasing washer 33 also each comprise at least one housing 68, 69 formed through each of the phasing washers, Figures 5 and 7. The housing is preferably oblong.
    The axial stud 66, 67 and the corresponding housing 68, 69 are arranged relative to each other so that the axial stud is inserted through the housing. The axial pads form stop means which limit the relative rotation of the web 15 and the front and rear phasing washers 32, 33 in two opposite directions of rotation, that is to say in the direct direction (D) (FIG. 4a) or retro (R) (Figure 4b).
    The axial stud 66, 67 is located circumferentially between two tabs of the web. More precisely, the axial stud 66, 76 is located radially between the splined hub 16 and the window 71 housing two elastic members 25, 26 and axially between the radially inner portion 64 and the lug 59, 60, 61.
    The rear phasing washer 32 and the front phasing washer 33 each comprise three housings such as 68 and 69 respectively for each receiving a pad such as 66 and 67 respectively. Each of the studs is intended to bear against an edge of housing 68,69.
    The stud 66, 76 may be formed by a separate peg of the web 15 (example not shown) which is inserted through the web 15 by press fitting or fixed by welding or riveting. The peg may then be designed such that at least one end of said peg is out of the web 15. In a variant, the peg is outgoing on both sides of the web 15.
    Figures 5, 7, 8a, 8b, 8c, the stud is made by extrusion of the material. In the example of the invention, the stud 66 is intended to cooperate with the rear phasing washer 32 and the stud 67 is intended to cooperate with the phasing washer before 33. The studs 66 and 67 are each formed on the same circle. In FIG. 8a is illustrated the damping device and in FIGS. 8b and 8c are respectively illustrated sections of damping device according to a first section A and according to a second section B passing respectively through block 66 and by the two pads 66 and 67.
    As a variant not shown, the two studs 66 and 67 could be radially aligned.
    The rear phasing washer 32 and the front phasing washer 33 are connected together by means of a connecting member 52 forming a connecting spacer 52.
    According to one embodiment of the invention, the connecting spacer 52 is arranged on the same circle as that on which are formed the pads 66,67.
    2, the damping device 4 also comprises a pendular damper 48 comprising a support member 49 and a plurality of pendulum weights 50 circumferentially distributed on the support member 49. The support member 49 of the swinging damper 48 forms a disk which has a first portion extending radially and a second portion extending axially. The second part is intended to bear against the bearing 18. In the example the second part of the support member 49 extends forward. The support member 49 has receiving orifices 51 allowing the passage of connecting members 52, such as rivets, for securing the support member 49 to the rear phasing washers 32 and before 33. The fastening support member 49 to the rear phasing washers 32 and before 33 is made through an orifice 53 formed through the front guide washer 14. According to one embodiment of the invention, the orifice 53 is oblong shape and extends circumferentially over a defined length so that the connecting member 52 does not come into contact with an edge of said orifice 53, regardless of the operating conditions of the transmission assembly. The hole 107 formed through the rear guide washer 13 serves as a phasing of this connecting member 52 at the time of assembly of the device 4.
    Thus, the connecting member 52 connects the two phasing washers 32,33 between them and connects the swinging damper 48 to the two phasing washers 32,33. In one embodiment of the invention, the connecting member 52 is riveted to the pendulum support member 49.
    In the example, the housings 68 and 69 and the orifices 51 and 53 extend over a circle of the same radius. The fixing member 52 also forms a spacer between the phasing washers 32, 33 and the support member 49.
    In addition, the support member 49 is offset axially forward and extends between the front guide ring 14 and the flywheel 3. The pendulum weights 50 are mounted at an outer end of the body of the 49. In the example 2, the pendulum weights 50 are implanted radially on the outside of the elastic members. Thus, the pendulum weights 50 can be implanted at a relatively large radial distance from the X axis, which has the effect of giving the pendulum damper 48 optimum filtration performance.
    The weights 50 are able to oscillate with respect to the support member 49 in a plane orthogonal to the axis of rotation X, in response to the irregularities of rotation. Each weight 50 comprises two sidewalls 54, 55 which extend axially on either side of the support member 49 and are axially connected to each other by means of two connecting struts such that 56 The operation of such flyweights is well known per se and will not be further described here. Other oscillating damper architectures 48 are also conceivable.
    The housings 68 and 69 formed respectively through the rear phasing washer 32 and the forward phasing washer 33 are located on the same circle as the one along which the orifice 53 is formed. In one embodiment of the invention, FIGS. invention, the orifice 53 extending over an arc larger than that along which extend the housing 68 and 69.
    In the embodiment shown in FIG. 2, the rear and front guide washers 13 and 13 define a sealing chamber 45 for the elastic members 25, 26 which is filled with a lubricating agent, such as grease.
    In order to guarantee the tightness of the housing 45, the fixing of the rear guide washers 13 and 14 before can be performed by sealing. Indeed, the two rear guide washers 13 and 14 before are integral in rotation relative to each other. The guide washers 13 and 14 are connected continuously with each other over their entire periphery periphery. Other embodiments are possible, for example the guide washers 13 and 14 may be assembled by screwing with the use of a seal, or by riveting with or without a seal.
    In an embodiment not shown, a spacer ring could be inserted between the two guide rings at their radially outer portion, for example, to maintain the required axial spacing between the guide rings.
    In addition, the torsion damping device 4 is equipped with sealing means 46, 47, figure 12. For the sake of clarity, all the elements in common with those of FIG. 2 are referenced with the same numbers. FIG. 12 is a simplified representation of FIG. 2. These sealing means 46, 47 comprise a first elastically deformable sealing washer 46 placed between the web 15 and the rear guide washer 13, sealing between the veil 15 and the rear guide washer 13. These sealing means also comprise a second sealing washer 47, placed between the front phasing washer 33 and the front guide washer 14, sealing between the phasing washer before 33 and the front guide washer 14. Other sealing means may be provided. In particular, FIG. 13 shows a variant of the embodiment shown in FIG. 12 in which is represented the position of the front phasing washer 33 with respect to the front guide washer 14. As for FIG. 12, the elements common to the elements described for Figure 2 have the same references in Figure 13.
    The front phasing washer 33 forms a first flat portion 72 contiguous against a second flat portion 73 formed by the front guide washer 14. The plane-plane engagement of the front phasing washer 33 on the front guide washer 14 allows ensure a seal between these two elements. This planar plane connection of the front guide washer 33 and the front guide washer 14 may or may not be associated with the presence of the second sealing washer 47.
    The device as illustrated in FIG. 13 differs from the device as illustrated in FIG. 12 by the absence of the sealing washer 47 between the front guide washer 14 and the front phasing washer 33.
    Figures 9 and 10 is illustrated another embodiment of the invention in which a front guide washer 130 and a rear guide washer 140 are interconnected via at least one connecting strut 620. Several spacers such as 620 may be arranged circumferentially. In the example shown, 3 connecting struts such as 620 are provided.
    This connecting strut 620 makes it possible to connect the two guide washers together. This connecting spacer 620 also forms a limit stop of the front guide washer 130 and the rear guide washer 140 with respect to the front phasing washer 320, the rear phasing washer 330 and with respect to the veil 150. The connecting strut 620 forms a stop that can be described as "telescopic" since during the rotation of the two guide washers 130 and 140, the connecting strut 620 is able to come into contact with the phasing washers 320. and 330 then with the veil 150.
    For this, the front phasing washer 320, the rear phasing washer 340 and the web 150 comprise housing respectively 630, 640, 650 configured to pass the connecting spacer 620, Figure 10. The housing 630,640 and 650 are also configured such that the connecting spacer is adapted to abut against an edge of the housing of the front phasing washer 320 and another corresponding edge of the rear phasing washer 340, then comes to bear against an edge the housing of the veil 150 in a second time. Link spacer 620 is located near the X "axis of the device.
    A pendular damper (not shown) may also be provided and be connected to the phasing washers 320 and 340 by means of the connecting strut 620 similar to the connecting strut 52 as described above. Or it can be provided another connecting strut separate from that serving as a stop. This other spacer would then cross the guide washer 140. The location of this other connecting spacer is represented by an orifice 680 formed through each of the phasing washers 320 and 340. This orifice 680 is located on the same circle as that on which the connecting strut 620 is located. This orifice 680 is located between two tabs 151 and 152 of the web 150. However, in a variant that is not illustrated, the web 150 could also comprise oblong housings in order to allow the passage of the web. another connecting strut and the displacement of the phasing washers 320 and 340.
    In the example as illustrated in Figures 9 and 10, the web 150 is connected to a hub 160 adapted to be rotatably connected to an input shaft of a gearbox. In this example, the web 150 is in one piece with the hub 160 but could be formed of a separate part of the hub 160. Between the front guide washer 130 and the hub 160 is disposed a front bearing 170. Between the rear guide washer 140 and the hub 160 is disposed a rear bearing 180. Between the front phasing washers 320 and the hub 160 is disposed the front bearing 170. Between the rear phasing washer 330 and the same hub 160 is disposed the bearing 180. The front bearing 170 and the rear bearing 180 each have an L shape with a first axial bearing face respectively 171,181 and a second axial bearing face respectively 172,182. The first bearing surface of the bearings 170 and 180 is adapted to receive a radially inner end respectively of the front guide washer 130 and the rear guide washer 140. The second bearing face of the bearings 170 and 180 is adapted to receiving a radially inner end of the front phasing washer 320 and the rear phasing washer 330.
    The front bearing 170 and the rear bearing 180 have a third radial bearing face respectively 173 and 183 intended to bear against a corresponding face respectively of the front guide washer 130 and the rear guide washer 140.
    The guide washers 130, 140 may form the torque entry element in the so-called "direct" mode, the web 150 then forming the torque output element. Also, the guide washers 130, 140 may form the torque output element in so-called "retro" mode, the web 150 then forming the torque input element. The rear guide washer 140 is connected to a friction disc 120.
    The guide washers 130, 140 are also interconnected by at least one fastening means (not shown). For this purpose, the guide washers 130, 140 comprise passage orifices 131 and 141 of the fixing means. In one example, the fastening means may be a screw which can be inserted through the orifices of passages 131 and 141. In the example shown in FIG. 9, the through-holes 131 and 141 are located at the radially outer periphery. guide washers while the housings 630,640 and 650 receiving the connecting spacer 620 are intended to be located at the radially inner periphery of the guide washers 130,140.
    11 shows an assembly comprising a flywheel or flywheel 75 adapted to be connected to the output shaft of the engine, a reaction plate 76 rotatably mounted to the flywheel 75 at least rivets or screws not shown. The assembly also comprises a friction disc 78 capable of being gripped between the reaction plate 76 and a pressure plate 79 to enable the flywheel 75 to be rotatably coupled to the gearbox. The reaction plate 76, the friction disk 78 and the pressure plate 79 are part of a disk clutch. The cover 106 is fixed to the reaction plate 76 by means of a fastening rivet 77. The assembly as illustrated in FIG. 11 also comprises a pendular damper 80 intended to be coupled to the input shaft of the gearbox. . The pendulum damper 80 comprises a support member 81 and pendulum weights 82 mounted movably on the support member 81. The pendular damper 80 is located between the flywheel 75 and the input shaft of the box speeds. The pendulum damping device 80 comprises anti-tilt means 83 which are designed in such a way that the support member 81 and the flywheel 75 cooperate with each other to hold the organ axially in position. The support member 81 has undulating shapes 84 capable of cooperating with the flywheel 75 in the event of tilting of the support member 81.
    The wavy shapes 84 form waves that extend at least partially circumferentially. These shapes and / or the flywheel 75 may be covered with a substance allowing easy sliding without friction of these forms against the flywheel 75.
    Alternatively, these shapes 84 may be replaced at least partially by pins (not shown). Alternatively, the shapes or the pins could be carried by the flywheel 75.
    The shapes 84 are located at a distance from the axis of rotation X 'of said assembly so that they are likely to come into contact with the flywheel 75 or the support member 81 in the event of a tilting of the support member 81 to prevent any contact of the pendulum weights 82 with the flywheel 75 and / or the reaction plate 76. The assembly also comprises a torsion damper 85 coupled to the friction disk 78. The torsion damper 85 includes a rear guide washer 86 and a front guide washer 87. The rear guide washer 86 and the front guide washer 87 are coupled to the friction disc 78. The torsion damper 85 also includes a sail. 88 coupled in rotation to a central hub 89 which forms a single piece with the web 88. The central hub 89 is adapted to be coupled to the input shaft of the gearbox.
    At least one group of resilient members 90 is mounted between the guide washers 86 and 87 and the web 88. These resilient members 90 act against the rotation of the flywheel 75 / reaction plate 76 relative to each other. to the sail 88 / hub 89.
    The anti-tilt means 83 and the group of elastic members 90 are preferably located on the same circumference. The support member 81 has undulating shapes capable of cooperating with the front guide washer 87 in the event of tilting of said support member 81. As a variant not shown, these corrugated shapes may also be present on the front guide washer 87.
    As before, the elastic members 90 of the group are arranged in series by means of a rear phasing washer 91 and a front phasing washer 92 which are mounted free to rotate with respect to the guide washers 86, 87 and relative to the web 88 so that the elastic members of each group deform in phase with each other.
    The rear phasing washer 91 and the front phasing washer 92 are fixedly connected together.
    A rear bearing 93 and a front bearing 94 are arranged on either side of the web 88. The support member 81 is coupled indirectly to the torque input shaft of the gearbox by fastening the member 81 of the support on the front bearing 94. Each of these bearings 93, 94 are coupled in rotation to the hub 89.
    Preferably, the counterweights 82 are arranged radially outside the torsion damper 85.
    The flywheel 75 and the reaction plate 76 form a housing 95 inside which are inserted the pendulum weights 82.
    Friction means may be provided fixed on the flywheel 75, or on the plate of the support member 84 of the pendulum, or on the front guide washer 87.
    Alternatively Figures 14 and 15, there is illustrated a bearing 17 identical to that illustrated in Figure 2 and the other bearing formed of two separate parts 97 and 98. Each of the separate parts can form a sliding bearing or bearing. The elements in common illustrated in Figure 14 and Figure 2 have the same reference numbers. The first part 97 is fixed in rotation with respect to the hub 16 while the second part 98 forms a mounted cylindrical piece contiguous to the hub 16. The first piece 97 also has a forwardly extending axial protuberance 100 intended to serve as a axial bearing face for the front phasing washer 33. The first piece 97 serves to center the front guide ring 14. The second piece 98 serves to center the pendulum support member 49 '. The second piece 98 forms an axial stop 103 and the radially inner periphery of the pendulum support 49 'extends axially and has a complementary surface 104 to the axial stop 103. The axial stop 103 is configured in such a way as to prevent axial displacement. pendulum support 49 'towards the radial portion 101 of the hub 16.
    FIG. 16 is illustrated a damping device comprising the conical bearing 105 serving to support the front phasing washer 33.
    FIG. 16 also illustrates an axial stud 109 carried by the web 15 and serving as a stop for the rear phasing washers 32 and before 33. Another bearing 108 is also shown and serving to support the rear guide washer 13. The bearing 98 is positioned between the hub 16 and the support member 49.
    The assembly of a transmission assembly comprising a damping device as previously described is carried out as follows. The phasing washers before 32 and rear 33 are assembled on either side of the web 15. The elastic members are then inserted inside windows 71 and 70 respectively phasing washers 32,33 and the sail 15. The front guide washer 14 is placed against the front phasing washer 33. The rear guide washer 13 is placed against the rear phasing washer 32. Then, the connecting member 52 is inserted through the rear guide washer 13 The pendulum support member 49 is placed on the front guide washer 14. The connecting member 52 is then attached to the pendulum support member 49.
    Specifically, before the mounting of the support member 49 on the front guide ring 14, it is intended to fix the friction disc 12 on the rear guide washer 13, and to place the reaction plate 8 on a first face of the friction disc 12 located opposite the pendulum damper 48. Then the pressure plate 11 is placed opposite a second face of the friction disc 12, said second face being opposite to the first face. The clutch mechanism formed by the cover 9 and the diaphragm 96 is then connected to the reaction plate 8.
    Subsets are first formed separately from each other. The pendular damper 48 is assembled by mounting the pendulum weights on the support member 49. The clutch mechanism 9,96 is also assembled. And finally the rear guide washers 13 and 14 before, the rear phasing washers 32 and 33 before and the web 15 and the springs 25 and 26 are mounted to form a subset in the form of hollow disk which is fixed disk 12. Then the clutch mechanism 9, 96, the reaction plate 8 and the disc-shaped subassembly are assembled. The connecting member 52 is inserted through the rear guide washer 13. The swinging damper 48 is assembled on the front guide washer 14 by riveting the connecting member 52. The hole 107 is then plugged using a sealed cap (not shown).
    In parallel, the flywheel 6 is coupled to the crankshaft of an engine. Then the subassembly formed by the clutch mechanism 9, 96, the reaction plate 8, the pressure plate 11, the clutch disk 12 and the damping device 4 is mounted on the flywheel 6.
    Although the invention has been described in connection with several particular embodiments, it is obvious that it is not limited thereto and that it comprises all the technical equivalents of the means described and their combinations if they are within the scope of the invention. In particular, a clutch or a torque converter can be arranged in the transmission chain between the output of the shock absorber and the input shaft of the gearbox. The use of the verb "to include", "to understand" or "to include" and its conjugated forms does not exclude the presence of other elements or steps other than those set out in a claim. The use of the indefinite article "a" or "an" for an element or a step does not exclude, unless otherwise stated, the presence of a plurality of such elements or steps.
    In the claims, any reference sign in parentheses can not be interpreted as a limitation of the claim.
    权利要求:
    Claims (11)
    [1" id="c-fr-0001]
    1. torsion damping device (4) for a motor vehicle, comprising: - a first movable element (13, 14) adapted to receive an input torque and a second movable element (15, 16) capable of transmitting an output torque, the first element and the second element being rotatable about an axis X, coaxial, - a central hub rotatably coupled to the second element and adapted to be connected to an input shaft of a box at least one group of elastic members (25,26) mounted between the first member and the second member and acting against rotation of first member and second member relative to the other, - a phasing member (32,33), movable in rotation about the axis X and formed by a first portion (32) and a second portion (33), for arranging the elastic members of this group in series so as to the elastic members of each group deform into ph with each other, and - a pendulum damper (48) comprising a pendulum support member (49 ') adapted to move in rotation about the axis of rotation on which is movably mounted at least one flyweight (54). 55), the pendulum support member being rotatably connected to the phasing member, the phasing member being centered on the central hub via the pendulum support member.
    [2" id="c-fr-0002]
    2. Device according to claim 1, wherein it comprises a bearing (17,97,98) which is mounted between the pendulum support and the central hub.
    [3" id="c-fr-0003]
    3. Device according to claim 2, wherein the bearing is a sliding bearing, a rolling bearing or a conical bearing (105).
    [4" id="c-fr-0004]
    4. Device according to claim 2 or 3, wherein the bearing (17) is formed of a single piece.
    [5" id="c-fr-0005]
    5. Device according to claim 4, wherein the input member is formed by a first guide ring (13) and a second guide ring (14) interconnected, the bearing for centering the pendulum support. and one of the guide washers (14).
    [6" id="c-fr-0006]
    6. Device according to claim 2 or 3, wherein the central hub comprises a radial portion (101) and a cylindrical portion (102) from which the radial portion extends, the bearing (97,98) being formed by a first piece (97) and a second piece (98) separate from each other, the first piece being close to the radial portion of the hub and the second piece being away from the radial portion of the same hub.
    [7" id="c-fr-0007]
    7. Device according to claim 6, wherein the input member is formed by a first guide ring (13) and a second guide ring (14) interconnected, the first piece for centering a guide washers and the second bearing part for centering the pendulum support.
    [8" id="c-fr-0008]
    8. Device according to one of claims 6 to 7, wherein the second part forms an axial abutment (103) and the radially inner periphery of the pendulum support comprises a complementary surface (104) to the axial abutment, the axial abutment being configured to prevent axial movement of the pendulum support toward the radial portion of the hub.
    [9" id="c-fr-0009]
    9. Device according to one of claims 6 to 8, wherein the first bearing comprises an axial protuberance (100) serving as an axial bearing surface for the second guide ring.
    [10" id="c-fr-0010]
    10. 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 (4) according to any one of claims 1 to 9.
    [11" id="c-fr-0011]
    11. Transmission assembly for a motor vehicle, intended to be disposed between a heat engine (1) equipped with a crankshaft and a gearbox (2) equipped with an input shaft, said assembly comprising: an electric machine (500) having a stator (501) and a rotor (502) rotatable about an axis X; - A clutch (330) arranged to couple or uncouple in rotation the crankshaft of the engine and the rotor; - A torsion damping device (4) according to one of claims 1 to 9, the damping device being arranged to transmit torque and dampen the rotation acyclisms between the rotor and the input shaft of the gearbox.
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    同族专利:
    公开号 | 公开日
    JP2017062029A|2017-03-30|
    CN106382330A|2017-02-08|
    US10240657B2|2019-03-26|
    EP3121481B1|2019-11-06|
    EP3121481A2|2017-01-25|
    US20170023095A1|2017-01-26|
    EP3121481A3|2017-03-01|
    FR3039238B1|2018-03-02|
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    FR3039237B1|2015-07-24|2018-03-02|Valeo Embrayages|TORQUE TRANSMISSION DEVICE FOR A MOTOR VEHICLE|JP6870545B2|2017-09-05|2021-05-12|トヨタ自動車株式会社|Hybrid vehicle|
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    法律状态:
    2016-07-29| PLFP| Fee payment|Year of fee payment: 2 |
    2017-01-27| PLSC| Publication of the preliminary search report|Effective date: 20170127 |
    2017-07-31| PLFP| Fee payment|Year of fee payment: 3 |
    2018-07-27| PLFP| Fee payment|Year of fee payment: 4 |
    2019-07-31| PLFP| Fee payment|Year of fee payment: 5 |
    2020-07-31| PLFP| Fee payment|Year of fee payment: 6 |
    2021-07-29| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1557110A|FR3039238B1|2015-07-24|2015-07-24|TORSION DAMPING DEVICE FOR A MOTOR VEHICLE TRANSMISSION SYSTEM|
    FR1557110|2015-07-24|FR1557110A| FR3039238B1|2015-07-24|2015-07-24|TORSION DAMPING DEVICE FOR A MOTOR VEHICLE TRANSMISSION SYSTEM|
    EP16178775.9A| EP3121481B1|2015-07-24|2016-07-11|Device for damping torsion for a motor vehicle transmission system|
    US15/214,022| US10240657B2|2015-07-24|2016-07-19|Torsional damping device for a motor vehicle transmission system|
    CN201610873811.1A| CN106382330A|2015-07-24|2016-07-22|Torsional damping device for motor vehicle transmission system|
    JP2016144287A| JP2017062029A|2015-07-24|2016-07-22|Torsional damping device for motor vehicle transmission system|
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