• 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:
    The invention relates to a disk carrier (1) for a clutch module (70) of a motor vehicle, said carrier (1) having on its flange (2) a stop device (7) of a elastic return element (11), said elastic return element (11) being intended to allow the axial force to be absorbed and the centering of a force transmission member (36) to at least partially retain the element elastic return member (11) axially against the disk carrier (1). The invention also relates to an assembly (60) comprising a disk carrier (1) as described above and an elastic return element (11). Finally, the invention relates to a clutch module (70) comprising such a disk carrier (1).
    公开号:FR3079573A1
    申请号:FR1852851
    申请日:2018-03-30
    公开日:2019-10-04
    发明作者:Arnaud Dole；Taemann KIM；Vincent Cornet
    申请人:Valeo Embrayages SAS；
    IPC主号:
    专利说明:

    "Disc holder for a motor vehicle clutch mechanism and clutch module comprising such a disc holder"
    Technical area
    The context of the present invention is that of clutch modules, in particular for motor vehicles. The present invention relates to a disc holder configured to be integrated in a clutch module. The invention also relates to an assembly comprising such a disc holder and an elastic return element. Finally, the invention relates to a clutch module incorporating such an assembly.
    State of the art
    In the prior art, there are known clutch modules comprising a clutch mechanism and an actuation system. The clutch mechanism of known clutch modules includes an input disc holder and at least one clutch. The input disc holder is coupled in rotation to a first shaft, called the drive shaft, in order to provide engine torque to at least one clutch. The at least one clutch is configured to be able to selectively couple or decoupled in rotation the motor shaft to a second shaft, called the transmission shaft. The actuation system controls the clutch mechanism. To this end, the actuation system is arranged to generate at least one force making it possible to configure the at least one clutch of the clutch mechanism in a engaged configuration or in a disengaged configuration. The force generated by the actuation system is transmitted to the at least clutch via a force transmission member which displaces the first friction elements of the at least one clutch relative to the second elements friction of the at least one clutch in order to configure said at least clutch in one or the other of the engaged or disengaged configurations.
    In known manner, the first friction elements of the at least one clutch are coupled in rotation to the input disc holder in order to transmit torque from the motor shaft to the first friction elements. The second friction elements of the at least one clutch are coupled in rotation to the drive shaft by means of an output disc carrier, said output disc holder being coupled in rotation to the drive shaft. transmission. Thus, when the first friction elements of the at least one clutch are brought into contact with its second friction elements under the effect of the force generated by the actuation system, the motor shaft is coupled in rotation to the drive shaft.
    Furthermore, there are also known clutch mechanisms in which return means are arranged between the first friction elements and the second friction elements of the at least one clutch. The return means make it possible to axially separate the first friction elements with respect to the second friction elements and make it possible to configure the corresponding clutch from the engaged configuration to the disengaged configuration.
    The return means of known clutch mechanisms produce a return force less than the pressure force exerted on the force transmitting member by the actuation system, but often sufficient to move the first friction elements away from the second friction elements when the actuation system exerts no force on the force transmission member.
    These clutch modules are not entirely satisfactory and have drawbacks. Indeed, the return means are located between the first and the second friction elements of the at least one clutch: they do not allow a sufficient force to be generated to move the force transmission member away from said clutch. In addition, the return means are difficult to access, and their maintenance or replacement requires disassembly of the clutch mechanism.
    The subject of the invention is a new disc holder configured to receive an axial return element of the force transmission member in order to respond at least in part to the preceding drawbacks and in addition to lead to other advantages.
    Another object of the invention is to allow the radial centering of the force transmission member with respect to at least one clutch of the clutch mechanism.
    Finally, another object of the invention is to be able to provide a sub-assembly formed by a disc holder and an elastic return element.
    Statement of the invention
    According to a first aspect, the invention comprises a disc holder intended to be used in a clutch module, said disc holder comprising:
    a radial elongation flange along an axis of rotation of the disc holder;
    an axial elongation surface located at a radial end of the flange;
    said disc holder comprising on its flange a stop device which comprises a first stop member in an axial direction of an elastic return element of a force transmission member.
    The axial stop of the elastic return element is achieved by an axial support of the elastic return element against the first stop member. This configuration allows the elastic return element to be retained at least partially axially against the disc holder.
    In addition, this configuration makes it possible in particular to preassemble the elastic return element on the disc holder, independently of its subsequent assembly on a clutch mechanism of the clutch module.
    In the following description and in the claims, the following terms will be used without limitation and in order to facilitate understanding:
    - "front" or "rear" depending on the direction relative to an axial orientation determined by the main axis of rotation of the disc carrier, "the rear" designating the part situated to the right of the figures, on the transmission side, and "the front" designating the left part of the figures, on the engine side; and
    - “inside / inside” or “outside / outside” relative to the axis of rotation and in a radial orientation, orthogonal to said axial orientation, “inside” designating a proximal part of the axis of rotation and “l 'outside' designating a distal part of the axis of rotation.
    The disc holder according to the first aspect of the invention advantageously comprises one or more improvements described below, the technical characteristics forming these improvements can be taken alone or in combination:
    - The disc holder comprises on its flange the stop device, said stop device comprising a second stop member in a radial direction of the elastic return element. This configuration makes it possible to retain the elastic return element in a radial direction and / or in an axial direction, to form a pre-assembled assembly, said pre-assembled assembly comprising the disc holder and the elastic return element. Thus, this configuration is simpler, has greater ease of use and facilitates maintenance operations;
    - The flange is located at an axial end of the axial elongation range, the stop device being located on a first axial face of the flange, said first axial face of the flange being located on a side opposite to the range of axial elongation with respect to the flange;
    - The flange comprises several openings for the passage of the force transmission member, the stop device being located radially outside said openings. The openings present on the flange of the disc holder to the force transmission member to engage through the disc holder in a circumferentially more distributed manner relative to the axis of rotation and consecutively, allow to distribute the axial pressure of the force transmission member on the corresponding clutch. In addition, the openings also make it possible to avoid an off-center of the force transmission member with respect to the clutch mechanism. This configuration in which the stop device is located radially outside the openings makes it easier to insert the elastic return element on the disc holder. Alternatively, the stop device is located radially inside said openings, this configuration making it possible to reduce the radial size of the stop device;
    - The stop device comprises a cylindrical seat of axial elongation which extends axially projecting relative to the flange, said cylindrical seat forming the second member of the stop device. Preferably, said cylindrical surface extends axially on a side opposite to the axial elongation surface of the disc holder relative to the flange of the disc holder;
    - According to a first embodiment, the cylindrical bearing extends circumferentially around the axis of rotation of the disc holder along a closed contour This configuration allows better positioning of the elastic return element on the disc holder , said closed contour of the cylindrical seat being preferably of circular shape. According to a second alternative embodiment, the cylindrical bearing extends circumferentially around the axis of rotation of the disc carrier along at least one angular sector, said cylindrical bearing preferably extending circumferentially around the axis of rotation of the following disc holder several angular sectors angularly regularly spaced from each other;
    - The cylindrical surface comprises a groove located on a radial face of the cylindrical surface of the stop device, said radial face being located on the side of the openings for passage of the force transmission member, said groove forming the first member of the device and being intended to accommodate a radial end of the elastic return element. When the radial end of the elastic return element is housed in the groove forming the first member of the stop device, an external radial part of said elastic return element is located between two circumferential walls forming said groove, an external diameter of the elastic return element being between a diameter of a bottom of the groove and a diameter of the radial face of the cylindrical seat on which said groove is formed;
    - the groove extends circumferentially around the axis of rotation of the disc holder;
    - The groove comprises a profile in the general shape of a U, said profile allowing an axial stop of the elastic return element on the groove, said axial stop being oriented on one side of the groove opposite to the bearing of axial extension of the disc carrier with respect to the flange;
    - The groove has an axial dimension allowing the introduction of an outer radial end of the elastic return element. More particularly, the axial dimension of the groove is at least greater than an axial thickness of the outer radial end of the elastic return element;
    - According to a first embodiment, the cylindrical bearing surface of the stop device comprises a groove which extends circumferentially around an axis of rotation of the disc holder, the groove drilling the groove of the stop device;
    - In the first alternative embodiment, the groove of the cylindrical seat extends radially opposite the cylindrical seat relative to the openings of passage of the force transmission member;
    - In the first variant, the groove extends circumferentially around the axis of rotation of the disc holder along a closed contour, said closed contour being preferably of circular shape and of center the axis of rotation. Alternatively, the groove extends circumferentially around the axis of rotation of the disc holder along at least one angular sector, the groove preferably extending circumferentially around the axis of rotation of the disc holder along several angular sectors angularly regularly spaced from each other with respect to the axis of rotation;
    - According to a second alternative embodiment, the cylindrical bearing surface of the stop device comprises a rib which extends radially projecting from said cylindrical bearing towards the openings for passage of the force transmitting member, the rib and the flange forming together the groove of the cylindrical seat. Indeed, the rib being located at a non-zero axial distance from the flange, it forms the groove, in collaboration with said flange and the cylindrical bearing supporting said rib. Advantageously, the axial distance between the rib and the flange is chosen so as to allow the insertion of the axial stop member;
    - In the second variant, the rib extends circumferentially around the axis of rotation of the disc holder along a closed contour, said closed contour of the rib preferably being of circular shape. Alternatively, the rib extends circumferentially around the axis of rotation of the disc holder along at least one angular sector, the rib preferably extending circumferentially around the axis of rotation of the disc holder along several angular sectors angularly regularly. spaced from each other;
    - The rib according to the second alternative embodiment includes a particular shape allowing the pre-assembly of the elastic return element in the groove towards the front, and the axial force recovery towards the rear. Advantageously, the rib comprises a first face and a second face, said faces being axially asymmetrical with respect to one another. Thus, the first axial face of the rib is located axially towards the flange of the disc holder. The second axial face of the rib is located axially on one side of the rib opposite the flange of the disc holder. More particularly, the first face of the rib is parallel to the flange of the disc carrier, in order to favor the resumption of the axial forces of the elastic return element when said elastic return element is inserted in the groove. The second axial face of the rib is axially inclined, so that a first radial end of the rib has a larger axial dimension than a second radial end of the rib, said first radial end of the rib being located radially. outside with respect to said second radial end of the rib. This configuration makes it easier to insert the elastic return element into the groove;
    - the disc holder can be obtained by stamping, by machining, or by any other process known to those skilled in the art.
    According to a second aspect, the invention relates to an assembly for a clutch module, said assembly comprising:
    a disc holder according to the first aspect of the invention or according to one of its characteristics;
    an elastic return element of a force transmission member of the clutch module, said elastic return element being locked at least axially against the flange of the disc holder.
    The assembly according to the second aspect of the invention thus allows the pre-assembly of the elastic return element in a disc holder according to the first aspect of the invention. This configuration thus makes it possible to provide a pre-assembled assembly.
    The disc holder is preferably an input disc holder, intended to be coupled in rotation to a drive shaft of a motor vehicle transmission system.
    The clutch module assembly according to the second aspect of the invention advantageously comprises at least one of the improvements below, the technical characteristics forming these improvements can be taken alone or in combination:
    the elastic return element comprises a shape correspondence with the force transmission member, said shape correspondence between the elastic return element and the force transmission member making it possible to maximize the axial bearing area of the elastic return element against the force transmission member, thus making it possible to effect a more effective return of the force transmission member by the elastic return element;
    - the elastic return element is an elastic washer, for example of the Belleville type. Alternatively, the elastic return element is at least one helical spring;
    - the elastic return element is formed from a material comprising steel, plastic or composite materials;
    - The elastic return element comprises at least one ring which extends circumferentially around the axis of rotation of the disc holder along a closed contour;
    - An outer radial end of the elastic return element is housed in the groove of the cylindrical surface of the device for stopping the disc holder according to the first aspect of the invention or according to any one of its improvements;
    - The elastic return element comprises orifices, said orifices being situated circumferentially around the axis of rotation of the disc holder and allowing the passage of the force transmitting member. Advantageously, the orifices of the elastic return elements are coaxial with the openings of the disc holder in order to allow the radial centering of the force transmission member relative to the clutch mechanism.
    According to a third aspect, the invention relates to a clutch module comprising:
    a clutch mechanism comprising:
    o at least one clutch;
    o at least one input disc holder according to the first aspect of the invention or according to any of its improvements, said at least one input disc holder being coupled in rotation to T at least one clutch in order to be able transmit engine torque;
    o an elastic return element locked at least axially against the flange of the input disc holder;
    an actuation system arranged to generate at least one force making it possible to configure T at least one clutch of the clutch mechanism in a engaged configuration or in a disengaged configuration;
    at least one force transmission member arranged to transmit the force generated by the actuation system to at least one corresponding clutch of the clutch mechanism.
    The invention according to the third aspect of the invention makes it easier to assemble the disc holder on the clutch module, more particularly by facilitating the integration of the elastic return member during the assembly operations of said module. clutch. In addition, the invention in accordance with its third aspect also makes it possible to exert a restoring force on the force transmission member independently of the presence of a clutch mechanism in the clutch module. On the other hand, this configuration makes it possible to reduce the restoring force which the restoring means situated between the first and second friction elements of the at least one clutch must exert, which makes it possible to extend the life of said said means of recall. In addition, this configuration according to the third aspect of the invention makes it possible to reduce the maintenance costs of a clutch module comprising such a disc holder.
    The clutch module according to the third aspect of the invention may advantageously comprise at least one of the improvements below, the technical characteristics forming these improvements can be taken alone or in combination:
    - an outer radial end of the elastic return element is housed in the groove of the cylindrical seat of the stop device;
    - The elastic return element comprises a face located axially on one side of the elastic return element opposite the input disc holder with respect to the clutch mechanism, said face having a shape complementary to the shape of the 'force transmission member coming to bear axially against said elastic return element;
    - According to a first alternative embodiment of the clutch module according to the third aspect of the invention, the clutch module comprises a single clutch and the actuation system comprises a single actuator making it possible to configure the clutch in the engaged configuration or disengaged via a single force transmission member. According to a second alternative embodiment of the clutch module according to the first aspect of the invention, the clutch module comprises two clutches and two force transmission members, and the actuation system comprises two actuators, each actuator making it possible to selectively configuring one of the two clutches in its engaged or disengaged configuration by acting respectively on the first and the second force transmission member;
    - According to the second variant of the third aspect of the invention, the clutch module comprises two clutches in a radial configuration, a first clutch being located radially outside of a second clutch. Alternatively, the clutch module comprises two clutches in an axial configuration, a first clutch is located axially in front of a second clutch;
    - In the second variant of the clutch module according to the third aspect of the invention, the input disc holder further comprises a second stop device, said second stop device comprising a second member axial stop of an elastic return element of the second force transmission member, said second stop device possibly comprising any one or more of the characteristics mentioned above;
    - In the radial configuration of the second variant of a clutch module according to the third aspect of the invention, the input disc holder comprises an axial stop device, said axial stop device being associated with a first force transmission member, said first force transmission member cooperating with the first clutch, the first clutch being located radially outside the second clutch;
    - In the axial configuration of the second variant of a clutch module according to the third aspect of the invention, the input disc holder comprises a first and a second axial stop device, the first stop device axial being associated with a first force transmission member of the clutch module and the second axial stop device being associated with a second force transmission member of the clutch module. Advantageously, each axial stop device of the input disc holder conforms to the invention as described previously in any of its improvements;
    - Advantageously, the clutch mechanism is of the type of a wet clutch mechanism, a hydraulic fluid circulating at the level of at least one clutch in order to allow lubrication and / or cooling of its friction elements. Alternatively, the clutch mechanism may be of the type of a dry clutch mechanism.
    Various embodiments of the invention are provided, integrating according to all of their possible combinations the different optional characteristics set out here.
    Description of the figures
    Other characteristics and advantages of the invention will become apparent from the following description on the one hand, and from several exemplary embodiments given by way of non-limiting indication with reference to the appended schematic drawings on the other hand, in which :
    - FIGURE 1 shows a perspective view of a rear face of an exemplary embodiment of a disc holder obtained by stamping in accordance with the first aspect of the invention;
    - FIGURE 2 shows a view in partial axial section of an exemplary embodiment of a disc holder obtained by machining in accordance with the first aspect of the invention;
    - FIGURES 3 to 5 illustrate different stages of placing an elastic return element on a disc holder obtained by machining in accordance with the first aspect of the invention;
    - FIGURE 6 shows an axial sectional view of the disc holder 1 obtained by stamping illustrated in FIGURE 1;
    - FIGURES 7 to 9 illustrate different stages of placing an elastic return element 11 on the disc holder 1 obtained by stamping illustrated in FIGURE 1;
    - FIGURE 10 shows an axial sectional view of an exemplary embodiment of a disc holder 1 obtained by stamping in accordance with the first aspect of the invention;
    - FIGURE 11 shows a view in partial axial section of an exemplary embodiment of a double clutch clutch module according to the third aspect of the invention.
    The characteristics, variants and different embodiments of the invention can be combined with one another in various combinations, insofar as they are not incompatible or mutually exclusive. One can in particular imagine variants of the invention comprising only a selection of characteristics described below in isolation from the other characteristics described, if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention from in the prior art.
    In particular, all the variants and all the embodiments described can be combined with one another if nothing is technically opposed to this combination.
    In the figures, the elements common to several figures keep the same reference.
    Detailed description of the invention
    With reference to FIG. 1, an exemplary embodiment of a disc holder 1 in accordance with the first aspect of the invention is described. In this example, the disc holder is obtained by stamping. It is therefore a pressed disc holder. The disc holder 1 thus illustrated is intended to be used in a clutch module, said disc holder 1 comprising a flange 2 of radial elongation along an axis of rotation O of the disc holder 1 and a reach 3 of elongation axial located at a radial end of the flange 2. The disc holder 1 comprises on its flange 2 a stop device 7 which comprises a first stop member 9 in a radial direction of an elastic return element of a member force transmission. In the exemplary embodiment illustrated in FIGURE 1, the disc holder 1 is more particularly intended for use in a clutch module comprising two clutches.
    The disc holder 1 is delimited axially by a flange 2 of radial elongation. The disc carrier 1 is delimited radially by the bearing 3 of axial elongation, said bearing 3 being located at an outer radial end of the flange 2. The disc carrier 1 comprises a cylindrical bearing 6 of axial elongation which extends axially projecting rearward AR with respect to the flange 2. The cylindrical bearing 6 is located at the outer radial end of the flange 2. The cylindrical bearing 6 extends circumferentially around the axis of rotation O of the disc holder 1 .
    The scope 3 of axial extension of the disc holder 1 comprises grooves, said grooves extending axially and being located on an external radial face of the scope 3 of axial extension of the disc holder 1. The reach 3 axial collaborates with a clutch and a web of entry of a clutch module. The cylindrical bearing surface 6 collaborates with an elastic return element.
    The flange 2 of radial elongation has a plurality of openings, called first openings 4, intended to allow the passage of a first force transmission member of a first clutch of the clutch module. In the exemplary embodiment illustrated in FIGURE 1, the first openings 4 are regularly angularly spaced with respect to the axis of rotation O of the disc holder of the clutch mechanism.
    The radial elongation flange 2 also includes a plurality of openings, called second openings 5 intended to allow the passage of a second force transmission member of a second clutch of the clutch module. The second openings 5 are regularly angularly distributed with respect to an axis of rotation O of the disc holder of the clutch mechanism. The second openings 5 are located radially inside with respect to the first openings 4. The first 4 and second openings 5 of the flange 2 of radial elongation are all aligned in pairs along the same radius.
    The cylindrical seat 6 comprises a stop device 7 for the elastic return element. The stop device 7 ensures an axial stop of the elastic return element. The stop device 7 also makes it possible to ensure a stop of the elastic return element in a radial direction. The stop device 7 is located at the outer radial end of the first openings 4 of the flange 2. The stop device 7 extends circumferentially around the axis of rotation O of the disc holder 1 in three sectors angular regularly angularly spaced from each other.
    With reference to FIGURE 2, an exemplary embodiment of a first disc holder 1 in accordance with the first aspect of the invention is described. In this example, the disc holder is obtained by machining. It is therefore a machined record carrier. The first disc holder 1 is delimited radially by a bearing 3 of axial elongation. A second disc holder 10 is delimited radially by a bearing 30 of axial elongation, said bearing 30 of the second disc holder being located radially inside with respect to the bearing 3 of axial elongation of the first disc holder 1. The first disc holder 1 is associated with a first clutch and the second disc holder 10 is associated with a second clutch. The second disc holder 10 is delimited axially by a flange 20 of radial elongation situated against the flange 2 of the first disc holder 1, the flange 20 of the second disc holder being located against a rear face AR of the flange 2 of the first door - discs 1.
    The first disc holder 1 has first openings 4 and second openings 5. The first and second openings are formed on the flange 2 of the first disc holder 1, said first openings 4 being located radially outside relative to the second openings 5.
    The cylindrical bearing surface 6 of the first disc holder 1 extends circumferentially along the axis of rotation of the first disc holder 1, forming a closed contour. The cylindrical surface 6 has a rib 8 which extends radially towards the first openings 4 for the passage of the first force transmission member. The rib and the cylindrical surface 6 of the disc carrier 1 together form a groove 90, said groove forming the stop device 7.
    The rib 8 comprises a first axial face extending radially from the cylindrical surface 6 inwards in the direction of the axis of rotation O, said first axial face being located on the side of the surface 3 of axial elongation. The rib 8 comprises a second axial face extending radially from the cylindrical surface 6 inwards, said second axial face being located on an opposite side of the rib 8 relative to the surface 3 of axial elongation. The first and second axial faces of the rib 8 are asymmetrical with respect to each other. Thus, the first axial face of the rib 8 is parallel or substantially parallel to the flange 2 of the first disc holder 1, in order to favor the resumption of the axial forces of the elastic return element when said elastic return element is inserted in the groove 90. The second axial face of the rib 8 is axially inclined, so that an outer radial stop 81 of the rib 8 has a greater axial dimension than an inner radial stop 82 of said rib 8. This configuration facilitates the insertion of the elastic return element into the groove 9.
    In a plane transverse to the groove 90, said groove 90 comprises a general U-shaped shape. The groove 90 is located axially between the flange 2 of the first disc holder 1 and the rib 8. The groove 90 extends circumferentially according to the axis of rotation of the first disc carrier 1. The groove 900 is configured to receive an external radial end of an elastic return element. The rib 8 and the groove 90 extend circumferentially around the axis of rotation of the first disc holder 1, forming a closed contour. The groove 90 thus formed defines an axial and radial stop member of an elastic return element, said elastic return element being intended to be inserted into the groove 90. The rib 8 has a shape configured to allow the pre-assembly of the 'elastic return element towards the rear AR of the assembly, that is to say in the direction of the groove 90. The groove 90 has a shape configured to allow the resumption of axial force towards the front AV of all.
    With reference to FIGURES 3, 4 and 5, an exemplary embodiment of the various stages of mounting the elastic return element 11 in the stop device 7 of the disc holder 1 in accordance with the first aspect of the invention is described, the disc holder 1 illustrated in FIGURES 3, 4 and 5 being obtained by machining. These different stages make it possible to obtain an assembly 60 for a clutch module in accordance with the second aspect of the invention, said assembly 60 comprising a first disc holder 1 in accordance with the first aspect of the invention and an elastic return element 11 d 'A force transmission member 36 of the clutch module 70, said return element 11 being locked at least axially against the flange 2 of the first disc holder 1.
    The cylindrical bearing surface 6 of the stop device 7 comprises a rib 8 which extends radially projecting from said cylindrical bearing surface 6 towards the first openings 4 for passage of the first force transmission member 36. The rib and the flange of the holder discs 1 forming the groove 90 of the cylindrical seat. The groove 90 is located axially between the flange 2 of the first disc holder and the rib 8. The groove 90 extends circumferentially along the axis of rotation of the disc holder.
    The return element 11 is configured to be housed in the groove 90 of the stop device 7.
    The elastic return element 11 comprises orifices 40, said orifices 40 being coaxial with the first openings 4 of the first disc holder 1 so that the elastic return element 11 participates in the radial centering of the force transmission member relative to the axis of rotation of the first disc holder 1.
    In FIGURE 3, the elastic return element 11 is shown before it is mounted in the groove 90 of the cylindrical seat 6 of the first disc holder 1, the elastic return element 11 being located at the rear AR relative to the rib 8 of the cylindrical surface 6 of the first disc holder 1.
    In FIGURE 4, the elastic return element 11 is shown when it is mounted in the groove 90 of the cylindrical surface 6 of the first disc holder 1. The inner radial end of the elastic return element 11 is located at pressing on the flange 2 of radial elongation of the first disc holder 1, while the outer radial end of the elastic return element 11 is situated against an inner radial end of the rib 8 of the cylindrical seat 6. The elastic return element 11 is constrained radially against the rib 8 so as to exert a constricting force on the external diameter of the elastic return element 11. This makes it possible to reduce said external diameter of the elastic return element 11, allowing thus the elastic return element 11 to axially cross the rib 8.
    In FIGURE 5, the elastic return element 11 is shown after mounting in the groove 90 of the cylindrical seat 6 of the first disc holder 1, that is to say in its functional state to be implemented in a clutch module 70, so as to exert an axial return force on a force transmission member 36 of said clutch module 70. The outer radial end of the elastic return element 11 is located in the groove 90 of the cylindrical surface 6 of the first disc holder 1. The elastic return element 11 is then held axially and radially in the groove 90 of the first disc holder 1. The elastic return element 11 is then returned to its initial state. More particularly, the outside diameter of said elastic return element 11 is greater than the inside diameter of the rib 8. Thus, the elastic return element 11 is housed axially in the groove 90 of the disc holder 1.
    FIGURE 6 shows a view in axial section of the disc holder 1 illustrated in FIGURE 1. All the characteristics of the first machined disc holder 1 shown in FIGURE 2 can also be transposed to the pressed disc holder 1 illustrated in FIGURE 6.
    FIGURE 7 represents an axial section view of the disc holder 1 before mounting of the elastic return element 11 in the stop device 7.
    FIGURE 8 shows an axial sectional view of the disc holder 1 during assembly with the elastic return element 11 in the stop device 7.
    FIGURE 9 shows an axial sectional view of the disc holder 1, after mounting of the elastic return element 11 in the stop device 7 of the disc holder 1.
    FIGURE 10 shows an axial sectional view of the disc holder 1, the elastic return element 11 being mounted in the stop device 7 and the force transmission member 36, here a piston, being also mounted.
    With reference to FIGURES 7, 8 and 9, an exemplary embodiment of the various stages of mounting the elastic return element 11 in the stop device 7 of the disc holder 1 in accordance with the first aspect of the invention is described, the disc holder 1 illustrated in FIGURES 7, 8 and 9 being obtained by stamping. All the characteristics relating to the mounting of the elastic return element 11 in the machined disc holder 1 illustrated in FIGURES 3, 4 and 5 can be transposed to the steps of mounting the elastic return element 11 in the disc holder 1 stamping shown in FIGURES 7, 8, 9.
    With reference to FIGURE 10, an elastic return element 11 exerts an axial return force from the force transmission member 36 towards the rear AR, the elastic return element 11 being mounted in the stop device 7 of the pressed disc holder 1 according to the first aspect of the invention.
    With reference to FIGURE 11, an exemplary embodiment of a clutch module 70 according to the third aspect of the invention is described. The clutch module 70 comprises a clutch mechanism, said clutch mechanism comprising a first clutch 66 and a second clutch 67, a first input disc holder 1 according to the first aspect of the invention as described above or according to one of its improvements, and a second input disc holder 10. The first input disc holder 1 is machined, in accordance with FIGURES 2 to 5. It is understood that this first disc holder input 1 can be stamped in accordance with FIGURES 6 to 10. The clutch mechanism 80 also comprises an elastic return element 11 housed in the groove 90 of the first input disc holder 1, said return element 11 being in accordance with the description given above.
    The clutch module 70 also includes an actuation system arranged to generate at least one force making it possible to configure the clutches 66, 67 of the clutch mechanism 80 in a clutched configuration or a disengaged configuration. The clutch module 70 also includes a first force transmission member 36 and a second force transmission member 37, said first 36 and second 37 force transmission members being arranged to transmit the force generated by the system. actuation 55 at first 66 or second 67 clutch, respectively.
    The first input disc holder 1 is coupled in rotation to a drive shaft not shown by means of an input veil 15 and an input hub 25 movable in rotation about an axis of rotation O.
    The first input disc holder 1 is coupled in rotation to the second input disc holder
    10.
    The first input disc holder 1 is coupled in rotation to first friction elements 26 of the first clutch 66. The first clutch 66 comprises second friction elements 46, said second friction elements 46 of the first clutch 66 being coupled in rotation to a first output disc holder 16, said first output disc holder 16 being coupled in rotation to a first transmission hub 18.
    Likewise, the second input disc holder 10 is coupled in rotation to first friction elements 27 of a second clutch 67. The second clutch 67 comprises second friction elements 47, said second friction elements 47 of the second clutch 67 being coupled in rotation to a second outlet disc holder 17, said second outlet disc holder 17 being coupled in rotation to a second transmission hub 19. The first clutch 66 is located radially outside with respect to to the second clutch 67.
    The actuation system 55 comprises a first actuator 56. The first actuator 56 is configured to generate an axial force on the first force transmission member 36.
    Thus, the first force transmission member 36 axially displaces the first friction elements 26 of the first clutch 66 against its second friction elements 46 in order to couple in rotation the first input disc holder 1 and the first disc holder output 16 by friction coupling.
    Similarly, the actuation system 55 comprises a second actuator 57. The second actuator 57 is configured to generate an axial force on the second force transmission member 37. Thus, the second force transmission member 37 axially displaces the first friction elements 27 of the second clutch 100 against the second friction elements 47 of the second clutch 67 in order to couple in rotation the second input disc holder 10 and the second output disc holder 17 by friction coupling.
    The first clutch 66 comprises first return means 68. The first return means 68 are located axially between the first 26 and the second 46 friction elements of the first clutch 66. The first return means 68 are configured to separate the first elements 26 of the second friction elements 46 of the first clutch 66 in order to disengage said first clutch 66, when the first actuator 56 of the actuation system 55 no longer exerts axial force on the first force transmission member 36. The decoupling in rotation of the first 26 and second friction elements 46 of the first clutch 66 then causes the decoupling in rotation of the first input disc holder 1 with the first output disc holder 16.
    Similarly, the second clutch 67 comprises second return means 69. The second return means 69 are located axially between the first 27 and the second 47 friction elements of the second clutch 67. The second return means 69 are configured for separating the first friction elements 27 from the second friction elements 47 of the second clutch 67 in order to disengage said second clutch 67, when the second actuator 57 of the actuation system 55 does not exert an axial force on the second transmission member force 37. The decoupling in rotation of the first 27 and second friction elements 47 of the second clutch 67 then causes the decoupling in rotation of the second input disc holder 10 with the second output disc holder 17.
    An external radial end of the elastic return element 11 is inserted into the groove 90 of the cylindrical surface 6 of the first input disc holder 1. The rear axial face AR of the elastic return element 11 is pressed against a front face AV of the first force transmission member 36, in order to exert a sufficient restoring force on the first force transmission member 36 when the first actuator 56 of the actuation system 55 does not exert an axial force on the first force transmission member 36.
    As shown in FIGURE 6, the return element 11 comprises axial orifices 40, said orifices being coaxial with the first openings 4 of the first input disc holder 1. The orifices 40 allow the first transmission member to pass through. force 36 through the elastic return element 11, said orifices 40 thus allowing the radial centering of the first force transmission member 36 relative to the first clutch 66.
    In summary, the invention relates to a disc holder 1 for a clutch module 70 of a motor vehicle, said disc holder 1 comprising on its flange 2 a stop device 7 for an elastic return element 11, said elastic return element 11 being intended to allow the resumption of axial force and the centering of a force transmission member 36, in order to at least partially retain the elastic return element 11 axially against the disc carrier 1. The invention also relates to an assembly 60 comprising a disc holder 1 as described above and an elastic return element 11. Finally, the invention relates to a clutch module 70 comprising such a disc holder 1.
    Of course, the invention is not limited to the examples which have just been described and numerous modifications can be made to these examples without departing from the scope of the invention. In particular, the different characteristics, forms, variants and embodiments of the invention can be associated with each other in various combinations insofar as they are not incompatible or mutually exclusive of each other. In particular, all the variants and embodiments described above can be combined with one another.
    权利要求:
    Claims (13)
    [1" id="c-fr-0001]
    1. Disc holder (1) intended to be used in a clutch module, said disc holder (1) comprising:
    a flange (2) of radial elongation along an axis of rotation of the disc holder (1);
    a bearing (3) of axial elongation located at a radial end of the flange (2);
    characterized in that the disc holder (1) comprises on its flange (2) a stop device (7) which comprises a first stop member (9) in an axial direction of an elastic return element (11 ) a force transmission member (36).
    [2" id="c-fr-0002]
    2. Disc holder (1) according to claim 1, wherein the stop device comprises a second stop member (6) in a radial direction of the elastic return element (11).
    [3" id="c-fr-0003]
    3. Disc holder (1) according to any one of the preceding claims, in which the flange (2) is located at an axial end of the bearing surface (3) of axial elongation, the stop device (7) being located on a first axial face of the flange (2), said first axial face of the flange being located on a side opposite to the bearing surface (3) of axial elongation relative to the flange (2).
    [4" id="c-fr-0004]
    4. Disc holder (1) according to any one of the preceding claims, in which the flange (2) comprises several openings (4) for the passage of the force transmission member (36), the stop device ( 7) being located radially outside said openings (4).
    [5" id="c-fr-0005]
    5. Disc holder (1) according to any one of claims 2 to 4, in which the stop device (7) comprises a cylindrical surface (6) of axial elongation which extends axially projecting relative to the flange (2), said cylindrical bearing surface (6) forming the second member of the stop device (7).
    [6" id="c-fr-0006]
    6. Disc holder (1) according to the preceding claim, wherein the cylindrical surface (6) comprises a groove (90) located on a radial face (61) of the cylindrical surface (6) of the stop device (7) , said radial face (61) being situated on the side of the openings (4) for passage of the force transmission member (36), said groove (90) forming the first stop member (9) of the stop device (7) and being intended to accommodate a radial end of the elastic return element (11).
    [7" id="c-fr-0007]
    7. Disc holder (1) according to claim 6, wherein the cylindrical bearing surface (6) of the stop device (7) comprises a groove (91) which extends circumferentially around an axis of rotation of the holder. discs (1), the groove (91) forming the groove (90) of the cylindrical seat (6).
    [8" id="c-fr-0008]
    8. Disc holder (1) according to claim 6, wherein the cylindrical surface (6) of the stop device (7) comprises a rib (8) which extends radially projecting from said cylindrical surface (6) towards the openings (4) for the passage of the force transmitting member (36), the rib (8) and the flange (2) together forming the groove (90) of the cylindrical seat (6).
    [9" id="c-fr-0009]
    9. Assembly (60) for a clutch module (70), said assembly (60) comprising:
    a disc holder (1) according to any one of the preceding claims;
    an elastic return element (11) of a force transmission member (36) of the clutch module (70), said elastic return element (11) being locked at least axially against the flange (2) of the holder discs (1).
    [10" id="c-fr-0010]
    10. The assembly (60) according to claim 9, wherein the elastic return element (11) is a Belleville type washer.
    [11" id="c-fr-0011]
    11. An assembly (60) according to claims 9 or 10 taken in combination with the disc carrier (1) according to claims 6 to 8, in which an outer radial end of the elastic return element (11) is housed in the groove ( 90) of the cylindrical surface (6) of the stop device (7).
    [12" id="c-fr-0012]
    12. Clutch module (70) comprising:
    a clutch mechanism (80) comprising:
    o at least one clutch (90);
    o at least one input disc holder (1) according to any one of claims 1 to 8, said at least one input disc holder (1) being coupled in rotation to the at least one clutch (90 ) in order to be able to transmit engine torque;
    5 o an elastic return element (11) locked at least axially against the flange (2) of the input disc holder (1);
    an actuation system (56) arranged to generate at least one force making it possible to configure the at least one clutch (90) of the clutch mechanism (80) in a engaged configuration or a disengaged configuration;
    at least one force transmission member (36) arranged to transmit the force generated by the actuation system (56) to the at least one corresponding clutch (90) of the clutch mechanism (80).
    [13" id="c-fr-0013]
    13. The clutch module (70) according to claim 12, in which an external radial end of the elastic return element (11) is housed in the groove (90) of the cylindrical seat (6) of the device. stop (7).
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    同族专利:
    公开号 | 公开日
    CN110319126A|2019-10-11|
    FR3079573B1|2020-08-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE102007022422A1|2007-05-10|2008-11-13|Borgwarner Inc., Auburn Hills|Double clutch arrangement with piston guide element|
    WO2014054667A1|2012-10-04|2014-04-10|日産自動車株式会社|Driving force transmission device|
    DE102016223368A1|2015-11-26|2017-06-01|Schaeffler Technologies AG & Co. KG|Double coupling|WO2021047716A1|2019-09-10|2021-03-18|Schaeffler Technologies AG & Co. KG|Separating clutch with a restoring spring which engages through and behind a pressure pot with a positively locking connection, drive train and method for the assembly of a separating clutch|
    WO2021047715A1|2019-09-10|2021-03-18|Schaeffler Technologies AG & Co. KG|Disconnect clutch comprising adjustable return spring seat, drive train, and method for adjusting the spring force of a return spring of a disconnect clutch|DE102005007384A1|2005-02-18|2006-08-31|Zf Friedrichshafen Ag|Arrangement for the axial support of two rotating components|
    KR101155647B1|2010-02-04|2012-06-13|씨스톤 테크놀로지스|Friction element|
    DE102011113278B4|2011-09-06|2014-02-27|Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg|Clutch assembly, automotive powertrain and clutch actuation method|
    KR101417360B1|2012-10-11|2014-07-08|현대 파워텍 주식회사|Friction Device of Auto Transmission|
    CN105179511B|2015-09-28|2018-03-30|上汽通用汽车有限公司|Wet-type dual-clutch|
    法律状态:
    2019-03-29| PLFP| Fee payment|Year of fee payment: 2 |
    2019-10-04| PLSC| Search report ready|Effective date: 20191004 |
    2020-03-31| PLFP| Fee payment|Year of fee payment: 3 |
    2021-03-30| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1852851A|FR3079573B1|2018-03-30|2018-03-30|DISC HOLDER FOR MOTOR VEHICLE CLUTCH MECHANISM AND CLUTCH MODULE INCLUDING SUCH DISC HOLDER|
    FR1852851|2018-03-30|FR1852851A| FR3079573B1|2018-03-30|2018-03-30|DISC HOLDER FOR MOTOR VEHICLE CLUTCH MECHANISM AND CLUTCH MODULE INCLUDING SUCH DISC HOLDER|
    CN201910236654.7A| CN110319126A|2018-03-30|2019-03-27|The disk load-bearing part of clutch mechanism and clutch module including this discharge plate load-bearing part|
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