WO2015139698A1

WO2015139698A1 - Bearing and method for dismounting a clutch-actuating system

Info

Publication number: WO2015139698A1
Application number: PCT/DE2015/200113
Authority: WO
Inventors: Dirk Reimnitz
Original assignee: Schaeffler Technologies AG & Co. KG
Priority date: 2014-03-18
Filing date: 2015-03-02
Publication date: 2015-09-24
Also published as: CN106104050B; JP2017508932A; JP6707458B2; CN106104050A; DE112015001301A5

Abstract

The invention relates to a bearing, in particular a rolling-element bearing, for supporting an actuating system for actuating a friction clutch on a transmission input shaft of a motor vehicle transmission, comprising a first bearing ring, which is designed in particular as an inner ring, for support on the transmission input shaft, a second bearing ring, which can be rotated in relation to the first bearing ring and is designed in particular as an outer ring, for supporting the actuating system, and at least one dismounting element for applying a dismounting force directed in an axial direction to the first bearing ring by means of a dismounting tool acting on the dismounting element in a positive-locking manner. By means of the dismounting element, a dismounting tool can act on the bearing in a positive-locking manner and can act on the first bearing ring with a dismounting force without unnecessarily loading the second bearing ring, such that the bearing can be dismounted without damage even in tight installation-space conditions, whereby the dismounting of clutch-actuating systems having such a bearing is made easy.

Description

Bearing and method for disassembling a clutch actuation system

The invention relates to a bearing, with the aid of which an actuating system for actuating a friction clutch can be mounted on a transmission input shaft of a motor vehicle transmission, and a method for disassembling a clutch actuation system, which may have such a bearing.

From DE 10 201 1 017 380 A1 a double clutch is known, which can be actuated by means of a clutch actuation system. The clutch actuation system has a hydraulic actuation system that can displace a pressure plate of the friction clutch to open and close a respective friction clutch of the dual clutch. The actuation system is mounted via a bearing on a transmission input shaft of a motor vehicle transmission.

In order to achieve the smallest possible space requirement, the bearing bearing the actuating system on the transmission input shaft bearing as close to a housing of the motor vehicle transmission can be positioned or at least partially protrude into the housing of the motor vehicle transmission in the axial direction. As a result, the bearing can, for example, be located very close to a shaft sealing ring of the motor vehicle transmission which seals the transmission input shaft against the housing of the motor vehicle transmission. The bearing is usually pressed on its inner ring with the transmission input shaft. If, for example, in repair measures, the clutch actuation system to be dismantled, the space conditions do not allow it to engage behind the camp, so that is attacked during disassembly on the non-pressed to the transmission input shaft outer ring to pull the bearing of the transmission input shaft.

There is a constant need to improve the disassembly friendliness of clutch actuation systems.

It is the object of the invention to show measures that allow a good disassembly friendliness of Kupplungsbetätigungssystemen.

The object is achieved by a bearing with the features of claim 1 and a method having the features of claim 10. Preferred Ausgest Events of the invention are set forth in the dependent claims, each of which individually or in combination may constitute an aspect of the invention.

According to the invention, a bearing, in particular a rolling bearing, for supporting an actuating system for actuating a friction clutch on a transmission input shaft of a motor vehicle transmission is provided with a first bearing ring, in particular designed as an inner ring, for support on the transmission input shaft, a rotatable relative to the first bearing ring, in particular configured as an outer ring, second bearing ring for supporting the actuating system and at least one disassembly element for introducing a pointing in the axial direction disassembly force into the first bearing ring by means of a form-fitting acting on the disassembly disassembly tool.

Compared to a standard bearing ring, which is designed apart from an optionally provided raceway for a rolling element, substantially as a ring with flat surfaces, the disassembly can allow a positive engagement by the removal tool, so that a clamping attack is not required. In particular, it is possible with the disassembly tool to attack directly on the pressed with the transmission input shaft first bearing ring, so that a power flow over the second bearing ring and an optionally interposed rolling elements can be avoided to the first bearing ring. Damage to the bearing, in particular in the region of the contact surfaces on the rolling elements, can be avoided. Furthermore, it is possible to apply the disassembly tool to the bearing from the side facing away from the motor vehicle transmission side. Damage, for example, of a transmission input shaft against a housing of the motor vehicle transmission sealing shaft seal in a grip behind the bearing can be avoided. In particular, it is not necessary to provide so much free space radially outside the bearing that a tool can be used in the axial direction as far as in the direction of the motor vehicle transmission, that it engages behind the bearing after a movement radially inward of the bearing and can engage the inner ring of the bearing. As a result, the bearing can in particular at least partially protrude into the housing of the motor vehicle transmission in the axial direction and yet be easily disassembled. When disassembling the clutch actuation system, first the actuation system may be withdrawn from the bearing before the bearing is withdrawn from the transmission input shaft. Alternatively, the actuation system may be connected to the bearing when the bearing is withdrawn from the transmission input shaft so that the actuation system and the bearing can simultaneously be withdrawn from the transmission input shaft. By dismantling a demounting tool can form fit to the Attack bearing and without unnecessarily burdening the second bearing ring with a disassembly force on the first bearing ring attack, so that even in confined space conditions disassembly of the bearing without damage is possible, creating a good disassembly friendliness of clutch actuation systems is possible with such a camp.

The clutch actuation system may include an actuation system that is mounted with a clearance fit on the second bearing ring. The first bearing ring can be connected in particular by means of a transition fit or interference fit with the transmission input shaft. The first bearing ring and the second bearing ring are mounted in particular via a rolling body, in particular at least one bearing ball, each other. The first bearing ring and the second bearing ring may in particular each have a bearing groove in which the rolling body can rotate in a sliding and / or rolling. The bearing is characterized in particular as a rolling bearing, preferably designed as a deep groove ball bearing. In particular, a plurality of rolling elements are provided, which are rotatably accommodated in a cage in the circumferential direction zueinender spaced.

The actuating system is designed in particular as a CSC ("concentric slave cylinder") and has an annular cylinder surrounding the transmission input shaft, in which a corresponding piston can be hydraulically and / or pneumatically extended and retracted to actuate the friction clutch Actuating system designed as a double-CSC with two concentrically arranged annular cylinders, so that the actuating system can be used to actuate two friction clutches of a double clutch .. In particular, when viewed in the radial direction, the bearing of both the actuating system and a housing of the Motor vehicle transmission are covered.

In particular, the disassembly element is designed in one piece with the first bearing ring, wherein the disassembly element in the first bearing ring forms at least one gripping contour for the positive engagement, in particular hooking, of the disassembly tool. As a result, the dismantling element can be configured as a contouring of the first bearing ring deviating from a flat or cylindrical surface in a region of the first bearing ring that is accessible for the dismantling tool. By means of the gripping contour formed by the dismounting element, for example, the dismantling tool can engage behind a formed shoulder with a hook and / or can be inserted into a formed recess. grip and remove the bearing from the transmission input shaft by a force, in particular exclusively on the first bearing ring. Further, by the gripping contour formed by the disassembly element, for example, a projection, a shoulder or the like may be formed on which a disassembly tool designed as a pliers can engage to clamp a part of the gripping contour with the disassembly tool and the bearing of the transmission input shaft by a force, especially exclusively on the first bearing ring, deduct.

The gripping contour formed by the dismantling element preferably forms a gripping groove which opens at least partially or completely in the circumferential direction radially inwardly and / or radially outwardly and / or extends at least partially or completely in the circumferential direction radially inwardly and / or radially outwardly radially projecting gripping paragraph. The gripping groove may in particular be machined, for example by milling, preferably by turning, incorporated in the first bearing ring. A dismantling tool provided with a hook can engage behind the gripping groove and / or the gripping shoulder, in particular designed as a gripping bar, so that the bearing can be easily removed from the transmission input shaft. The hook of the dismantling tool can be used from the outside radially. In a gripping paragraph which runs only partially in the circumferential direction, the hook of the dismounting tool can also engage behind the gripping paragraph by a movement in the tangential direction.

Particularly preferably, the first bearing ring in the axial direction, in particular in a mounted in the installed state of the motor vehicle facing away axial direction, projecting disassembly section, wherein the disassembly section in the axial direction outside of the second bearing ring in the radial direction covered overlap region of the first bearing ring and / or outside a grease space of the first bearing ring which is limited by seals, the gripping contour formed by the dismounting element being arranged in the dismounting section. By means of the dismantling section, the first bearing ring can have a sufficiently large extent in the axial direction that the gripping contour formed by the dismantling element can be provided radially inwardly and / or radially outwardly in the region of the disassembly section. An interaction of the first bearing ring with the second bearing ring and / or a rolling element is not affected. If the disassembly is provided radially inward on the first bearing ring, a protruding disassembly section can also be saved. In particular, the gripping contour formed by the disassembly element is arranged on a first axial side of the first bearing ring, in particular in an axial direction pointing away from the motor vehicle transmission in the installed state, wherein the gripping contour formed by the disassembly element is in particular radially open in the axial direction Direction extending gripping groove and / or has a substantially axially projecting axially, in particular designed as a gripping extension, gripping paragraph. The gripping contour formed by the dismounting element can thereby be provided on the axial side of the first bearing ring. The extent of the bearing, in particular of the first bearing ring, in the axial direction can thereby be correspondingly short and space-saving.

In a preferred embodiment, the disassembly element is designed as a thread formed in the first bearing ring. Thereby, the disassembly tool can be screwed onto the disassembly, resulting in a positive connection, in which the bearing can be easily removed from the transmission input shaft. The dismantling element has to form the thread in particular a spirally extending gripping groove and / or a spirally extending rib-shaped gripping paragraph.

Preferably, one at one, in particular in a built-in state to the

Motor vehicle gear pointing toward axial direction, second axial side of the first bearing ring attacking, in particular designed in the manner of a sleeve, dismantling plate, said dismounting plate protrudes in the radial direction on the first bearing ring and / or on the first bearing ring and the second bearing ring. By dismantling plate, a point of attack for the removal tool can be formed so that the removal tool can initiate past the second bearing ring disassembly force in the first bearing ring. With the help of the dismantling plate, the disassembly tool can reach behind the bearing even in confined space conditions. Particularly preferably, the dismantling plate may have a trained gripping contour, which may be formed and further developed as described above. The above statements on the integral with the first bearing ring gripping contour can be transferred to an integral with the disassembly gripping contour.

Particularly preferably, the dismantling plate extends in a sleeve region radially outside of the first bearing ring and the second bearing ring in the axial direction, wherein the disassembly plate in the sleeve portion of the first bearing ring and / or the second bearing ring partially or completely covered in the radial direction. The dismantling tool can thereby be spaced apart from a shaft sealing ring and / or to a housing of the motor vehicle transmission on the dismantling plate. Preferably, the sleeve portion of the dismantling plate when installed also cover a portion of the actuation system viewed in the radial direction.

In particular, the dismounting plate has a support sleeve arranged on a bearing, which is smaller in radius on the first bearing ring and on the second bearing ring, for supporting on the transmission input shaft, wherein the dismounting plate is connected in particular via an interference fit with the first bearing ring. As a result, the dismantling plate can be pressed onto the transmission input shaft, so that when the bearing is removed from the transmission input shaft to the bearing, essentially no significant loads act. The first bearing ring may be in this embodiment, in particular, the outer ring of the bearing, while the second bearing ring is the inner ring of the bearing.

The invention further relates to a clutch actuation system for actuating a

A friction clutch for coupling a drive shaft of an automotive engine with at least one transmission input shaft of a motor vehicle transmission, with an actuating system for particular hydraulic actuation of the friction clutch, a transmission input shaft for deriving a introduced via the friction clutch torque in the motor vehicle transmission and a bearing the actuating system to the transmission input shaft bearing, as above described and can be trained. By dismantling a disassembly tool can positively engage the bearing and without unnecessarily burdening the second bearing ring with a disassembly force on the first bearing ring, so that even in confined space conditions disassembly of the bearing without damage is possible, creating a good disassembly friendliness of the coupling actuation systems is possible.

In a radially inwardly open gripping groove and / or a radially inward

projecting gripping paragraph in the first bearing ring may be provided in particular in the transmission input shaft a recess to make the gripping groove and / or the gripper paragraph accessible to a hook of the removal tool. In particular, the disassembly tool can be aligned in the hooked state substantially in the axial direction and rest against the other lateral surface of the transmission input shaft. The removal tool has in this case in particular a radially outwardly projecting handle. By the System on the lateral surface of the transmission input shaft, a defined position can be specified for the removal tool, so that it is easier to move several arranged on the lateral surface of the transmission input shaft disassembly tools in the same way. In particular, a uniform removal of the bearing from the transmission input shaft can be achieved by a voltage applied to handles of the dismantling tools connecting part. A tilting of the bearing when pulling off can be avoided.

The invention further relates to a method for disassembling a clutch actuation system, which may be designed and developed in particular as described above, in which an actuation system for, in particular, hydraulic actuation of a friction clutch can be developed and developed as described above; is removed, wherein the bearing is pressed onto a transmission input shaft, a disassembly tool is positively attached to the disassembly of the bearing and the bearing is withdrawn by means of the disassembly tool from the transmission input shaft in the axial direction, one of the disassembly tool during the removal of the bearing of the Transmission input shaft applied dismantling force acts on the second bearing ring over. By disassembly a disassembly tool can positively engage the bearing and unnecessarily burden the second bearing ring with a disassembly force on the first bearing ring, so that even in confined space conditions disassembly of the bearing without damage is possible, creating a good disassembly friendliness of clutch actuation systems Such a camp is possible.

The invention will now be described by way of example with reference to the accompanying drawings with reference to preferred embodiments, wherein the features shown below, both individually and in combination may represent an aspect of the invention. Show it:

1 is a sectional view of a dual clutch unit,

2 is a perspective sectional view of a first embodiment of a Kupplungsbe- actuating system for the dual clutch assembly of FIG. 1,

3 is a perspective sectional view of a detail of the clutch actuation system of FIG. 2, 4 shows a perspective sectional view of a second embodiment of a clutch actuation system for the dual clutch assembly of FIG. 1,

5 is a perspective sectional view of the clutch actuation system of FIG. 4 at a first disassembly time,

6 is a perspective sectional view of the clutch actuation system of FIG. 4 at a second disassembly time;

7 is a perspective sectional view of the clutch actuation system of FIG. 4 at a third disassembly time, a perspective sectional view of a third embodiment of a bearing of the clutch actuation system for the dual clutch assembly of FIG. 1,

9 is a perspective sectional view of a fourth embodiment of a clutch actuation system for the dual clutch assembly of FIG. 1, a perspective sectional view of a fifth embodiment of a

actuating system for the dual clutch assembly of Fig. 1 and

1 is a perspective sectional view of a second embodiment of a clutch actuation system for the dual clutch assembly of FIG. 1.

The illustrated in Fig. 1 dual clutch assembly 10 may couple a drive shaft 12 of an automotive engine with an inner first transmission input shaft 14 and / or an outer coaxial with the first transmission input shaft 14 arranged second transmission input shaft 16 of a motor vehicle transmission. For this purpose, the dual-clutch assembly 10 has a first clutch 18 designed as a friction clutch and a second clutch 20 designed as a friction clutch. The first clutch 18 has a relative to a first counter-plate 22 axially movable pressure plate 24 in order to frictionally couple a first clutch disc 26 arranged between the first counter-plate 22 and the first pressure plate 24 via friction linings 28. The first clutch plate 26 may be rotatably connected via a toothing 30 but axially displaceably connected to the first transmission input shaft 14. Accordingly, the second clutch 20 has a relative to a second genplatte 32 axially displaceable second pressure plate 34 in order to frictionally couple a second clutch disc 36 arranged between the second counter-plate 32 and the second pressure plate 34 via friction linings 28. The second clutch disc 36 may be non-rotatably connected via a toothing 30 with the second transmission input shaft 16 but axially displaceable. The first pressure plate 24 and the second pressure plate 34 can be displaced by a particular designed as a leaf spring return spring 35 in a defined starting position when no actuation force we introduced. In particular, in the defined starting position, the first clutch 18 and / or the second clutch 20 is open ("normally open"), wherein it is alternatively also possible that in the defined starting position, the first clutch 18 and / or the second clutch 20 is closed ("Normally closed"). The first pressure plate 24 is arranged between the first counter-plate 22 and the second counter-plate 32, wherein the first counter-plate 22 and the second counter-plate 32 are configured as separate separate components. The first counter-plate 22 is rotatably connected to the second counter-plate 32 via an intermediate piece 37. The first counter-plate 22 and the second counter-plate 32 are connected to a clutch cover 38, which is connected via a cover bearing 40 with an actuating system 42 of a Kupplungsbetätigungssys- system 44. The cover bearing 40 may alternatively have only one axial stop. In a preferred embodiment, the cover bearing 40 and the clutch cover 38 can also be omitted, as shown for example in FIG. 4 of DE 10 201 1017380 A1, the contents of which are hereby incorporated by reference as part of the invention. The intermediate piece 37 and the clutch cover 38 are not necessarily two different parts, but may preferably be integrally formed.

The actuating system 42 is rotatably designed and supported by a bearing 80 for the removal of radial forces on the second transmission input shaft 16. The bearing 80 is designed as a rolling bearing with a bearing ball 84, in particular as deep groove ball bearings. The actuating system 42 has an annular first pressure cylinder 46, with the aid of which a first piston 48 can turn disengaged. The first piston 48 moves a first actuating pot 50 purely axially to move the first pressure plate 24 to close the first clutch 18 to the first counter-plate 22 to. Accordingly, the actuating system 42 has a coaxial with the first annular pressure cylinder 46 radially inwardly disposed annular second pressure cylinder 52, by means of which a second piston 54 can be disengaged. The actuation system 42 is thereby configured as a double CSC ("concentric slave cylinder") .The second piston 54 can move a second actuator pot 56 purely axially to move the second pressure plate 34 toward the second counterplate 32 to close the second clutch 20 The first actuation pot 50 is connected via a first actuator Manure bearing 58 connected to the first piston 48. Accordingly, the second actuating pot 56 is connected to the second piston 54 via a second actuating bearing 60. Alternatively, the Betätigungsstöpfe 50, 56, which are purely axially displaceable apart from an elastic deformation during actuation, can be replaced by a respective pivotable actuating element, in particular a pivotable about an annularly closed pivot plate spring to provide a displacement / force translation.

The first counter-plate 22 is connected to a driver 62 which forms on its radially outwardly facing side with an output flange 64 of a dual-mass flywheel 66, a spline 68. The dual mass flywheel 66 is connected to the input shaft 12 via an input flange 70 forming a primary mass of the dual mass flywheel 66. The input flange 70 is connected via at least one bow spring 72 to the output flange 64 forming a secondary mass of the dual mass flywheel 66. Further, the input flange 70 is connected to a starter ring 74 for introducing a starting torque generated by an electric starter for starting the automobile engine. In addition, the first transmission input shaft 14 is radially supported by a pilot bearing 76 within the input shaft 12. The first transmission input shaft 14 may be supported on the second transmission input shaft 16 via a further bearing, not shown.

The second counter-plate 32 is supported via an axially fixed input bearing 78 preferably in the form of a deep groove ball bearing on the second transmission input shaft 16. Alternatively, the second counter-plate 32 may be supported on the first transmission input shaft 14 via the axially fixed input bearing 78. The second counter-plate 32 extends from radially outward coming with an axial offset in the direction of the input side of the dual clutch assembly 10 and this is configured correspondingly angled. The input bearing 78 is thereby at an axial height at which the input bearing 78 radially outwardly overlaps a portion of the first coupling 18. In addition, the actuating system 42 is supported via an output bearing in the form of an axially fixed deep groove ball bearing 84 on the second transmission input shaft 16, so that axial forces can be removed via the fastening device 42. Upon actuation of the first clutch 18 or the operation of the second clutch 20, that is, when the corresponding pressure plate 24, 34 are pressed onto the associated counter-plate 22, 32, the input bearing 78 and the output bearing in the form of deep groove ball bearing 84 are braced against each other. This results in a closed via the outer second transmission input shaft 16 power flow when the cover bearing 40 is not present and / or the cover bearing 40 by a sliding connection and / or by the axial compliance of the clutch cover 38 can not support the complete operating forces of the actuating system 42.

As shown in FIG. 2, the clutch actuation system 44 may include the actuation system 42, the bearing 80, and the outer second transmission input shaft 16. The bearing 80 has a designed as an inner ring first bearing ring 86 which is mounted on the bearing balls 84 on a second ring configured as an outer ring 88. By definition, the first bearing ring 86 is assigned to the transmission input shaft 16 and pressed in particular with the transmission input shaft 16, while the second bearing ring 88 is associated with the actuating system 42, which is supported for example via a clearance fit on the second bearing ring 88. In the illustrated embodiment, the bearing 80 projects partially into a housing 90 of the motor vehicle transmission. The bearing 80 is thereby arranged in the immediate vicinity of a shaft sealing ring 92 sealing the transmission input shaft 16 against the housing 90. The shaft sealing ring 92 is arranged in the axial direction, in particular between the bearing 80 and a gearbox bearing 94 which supports the transmission input shaft 16 on the housing 90.

As shown in particular in FIG. 3, the first bearing ring 86 is extended in a direction away from the housing 90 axial direction compared to the second bearing ring 88 by a disassembly portion 96. In the disassembly section 96, a disassembly element 98 is provided, on which a disassembly tool 100 can engage in a form-fitting manner in order to be able to remove the bearing 80 from the transmission input shaft 16 via a force acting exclusively on the first bearing ring 86. In the illustrated embodiment, the disassembly element 98 is configured as a gripping contour embodied in one piece with the first bearing ring 86 in the disassembly section 96 in the form of a gripping groove 102 that is closed in the circumferential direction and opens radially outward. Additionally or alternatively, a gripping bar can be provided which extends from the disassembly section 96 and / or the first bearing ring 86 radially inward and / or radially outward. The dismantling tool 100 can thereby engage with a hook 104 in the gripping groove 102 and thereby bring about a positive connection, so that the bearing 80 can be withdrawn from the transmission input shaft 16 by acting in the axial direction disassembly force.

As shown in the embodiment shown in FIG. 4, in addition to the embodiment illustrated in FIGS. 2 and 3, additionally or alternatively, the gripping groove 102 may be provided in accordance with FIG. Dial inside open in the first bearing ring 86 may be introduced so that, for example, the disassembly portion 96 can be saved. Here, the transmission input shaft 16 may in particular have a preferably circumferential recess 106 in the axial direction, on the one hand under the gripping groove 102 and on the other hand protrudes below the first bearing ring. This makes it possible to hook the hooks 104 of the dismounting tool 100 via the recess 104 from radially inward into the gripping groove 102, as shown in FIG. 5. In the hooked-in state (FIG. 6), the dismantling tool 100 can bear on the transmission input shaft 16 essentially flatly or at least linearly in the axial direction, so that a natural orientation results for the dismounting tool 100. Subsequently, it can be pulled on a radially outwardly projecting handle 108 of the disassembly tool 100 with a disassembly force in the axial direction, the installation of the disassembly tool 100 on the transmission input shaft 16 allows sufficient guidance to deduct the bearing 80 without tilting from the transmission input shaft 16 (Fig 7). By the system on the lateral surface of the transmission input shaft 16, a defined position can be specified for the disassembly tool 100, so that it is easier to move several arranged on the lateral surface of the transmission input shaft 16 disassembly tools 100 in the same way. In particular, a uniform removal of the bearing 80 from the transmission input shaft 16 can be achieved by a fitting on the handles 108 of the disassembly tools 100 connecting part.

In the embodiment shown in Fig. 8, the radially outwardly or radially inwardly open gripping grooves 102 are not circumferentially, but with a partially extending in the circumferential direction extension and in the disassembly portion 96 or radially inward of the disassembly portion 96 different part of the first bearing ring 86 is provided. Furthermore, the gripping contour formed by the dismantling element 98 is also provided in a first axial side 110 facing away from the housing 90 and configured, for example, as a radially extending gripping slot 12. The gripping slot 1 12 may, for example, an undercut, in particular in the manner of a dovetail connection, to allow a hooking of the disassembly tool 100. Further, the gripping slot 1 12 or a gripping bar, for example, allow the attachment of a dismantling tool configured as a pliers.

In the embodiment shown in FIG. 9, the dismantling element 98 is configured not as a gripping contour integrally introduced into the first bearing ring 86, but rather as a dismantling plate 1 14 acting on the first bearing ring 86 on a side facing the housing 90. The housing 90 may in particular at least one axially extending Ausspa- tion 1 16 have to make the disassembly plate 1 14 for the disassembly tool 100 accessible. The recess 16 can be made comparatively small in the radial direction and / or in the circumferential direction, so that the stability of the housing 90 is not significantly impaired. The extent of the recess 1 16 in the radial direction substantially corresponds to the extension of the hook 104 of the disassembly tool 100 or is in particular up to 25% larger.

In the embodiment shown in FIG. 10, the dismantling plate 1 14, in comparison to the embodiment shown in FIG. 9, has a sleeve region 1 18 covering the bearing 80. As a result, the dismounting plate 1 14 protrude from the housing 90, whereby the disassembly tool 100 can be easily attached to the disassembly plate 1 14.

In the embodiment shown in FIG. 1 1, the dismantling plate 1 14 in comparison to the embodiment shown in FIG. 10 supported on the transmission input shaft 16 support sleeve 120, which is in particular pressed with the transmission input shaft 16. The first bearing ring 86 is thereby not directly, but indirectly supported on the disassembly plate 1 14 to the transmission input shaft 16. The first bearing ring 86 may in particular be coupled, for example via a transition fit or press fit, with the sleeve region 118. For this purpose, the first bearing ring 86, in particular the outer ring of the bearing 80 and can attack from radially inwardly on the disassembly plate 1 14 in the sleeve portion 1 18. Accordingly, the second bearing ring 88 may be formed by the inner ring of the bearing 80, on which the actuating system 42 can engage from radially inward.

Reference numeral list Double clutch unit

drive shaft

first transmission input shaft

second transmission input shaft

first clutch

second clutch

first counter plate

first pressure plate

first clutch disc

friction lining

gearing

second counter plate

second pressure plate

Return spring

second clutch disc

connecting piece

clutch cover

cover support

actuating system

Clutch actuation system

first impression cylinder

first piston

first actuating pot

second impression cylinder

second piston

second actuating pot

first actuation bearing

second actuation bearing

takeaway

output flange

Dual Mass Flywheel

splines

inlet flange

bow spring 74 starter's wreath

76 pilot camps

78 entrance warehouse

80 bearings

82 paragraph

84 bearing ball

86 first bearing ring

88 second bearing ring

90 housing

92 shaft seal

94 Gearbox bearings

96 disassembly section

98 disassembly element

100 disassembly tool

102 gripping groove

104 hooks

106 deepening

108 handle

1 10 first axial side

1 12 gripping slot

1 14 Disassembly plate

1 16 recess

1 18 sleeve area

120 support sleeve

Claims

claims

1 . Bearing, in particular rolling bearing, for supporting an actuating system (42) for actuating a friction clutch (18, 20) on a transmission input shaft (16) of a motor vehicle transmission, with

a, designed in particular as an inner ring, first bearing ring (86) for support on the transmission input shaft (16),

a second bearing ring (88) rotatable relative to the first bearing ring (86), in particular configured as an outer ring, for supporting the actuating system (42) and at least one dismantling element (98) for introducing a disassembly force pointing in the axial direction into the first bearing ring (86) Help a form-fitting on the disassembly (98) attacking disassembly tool (100).

2. Bearing according to claim 1, characterized in that the disassembly element (98) is designed in one piece with the first bearing ring (88), wherein the disassembly element (98) in the first bearing ring (88) at least one gripping contour for positive engagement, in particular hooking, of Dismantling tool (100) is formed.

3. Bearing according to claim 2, characterized in that the of the disassembly element (98) formed gripping contour a radially inwardly and / or radially outwardly open at least partially or completely extending in the circumferential direction gripping groove (102) and / or radially inward and / or or forms radially projecting gripping paragraph projecting radially outwardly at least partially or completely extending in the circumferential direction.

4. Bearing according to claim 2 or 3, characterized in that the first bearing ring (84) in the axial direction, in particular in a mounted in the installed state of the motor vehicle facing away axial direction, projecting disassembly portion (96), wherein the disassembly portion (96) in the axial direction outside of the second bearing ring (88) viewed in the radial direction overlapping overlap region of the first bearing ring (86) and / or outside a limited by seals limited fat space of the first bearing ring (86), wherein by the disassembly element (98 ) formed gripping contour in the disassembly portion (96) is arranged.

5. Bearing according to one of claims 2 to 4, characterized in that the of the disassembly element (98) formed gripping contour on a, in particular in a mounted in the installed state of the motor vehicle facing away axial direction facing first axial side (1 10) of the first bearing ring (86), wherein the gripping contour formed by the dismantling element (98) has in particular a gripping groove which is open in the axial direction and extends essentially in the radial direction and / or has a gripping shoulder protruding axially in the radial direction.

6. Bearing according to one of claims 1 to 5, characterized in that on a, in particular in a mounted in the installed state to the motor vehicle facing axially direction, second axial side of the first bearing ring attacking, in particular designed in the manner of a sleeve, dismounting plate ( 1 14) is provided, wherein the disassembly plate (1 14) in the radial direction beyond the first bearing ring (86) and / or beyond the first bearing ring (86) and the second bearing ring (88) protrudes.

7. Bearing according to claim 6, characterized in that the dismantling plate (1 14) in a sleeve portion (1 18) extends radially outside of the first bearing ring (86) and the second bearing ring (88) in the axial direction, wherein the disassembly plate (1 14) in the sleeve portion (1 18) covers the first bearing ring (86) and / or the second bearing ring (88) partially or completely viewed in the radial direction.

8. Bearing according to claim 6 or 7, characterized in that the dismounting plate (1 14) arranged on a to the first bearing ring (86) and the second bearing ring (88) smaller radius supporting sleeve (120) for supporting on the transmission input shaft (16 ), wherein the disassembly plate (1 14) is connected in particular via a press fit with the first bearing ring (86).

9. A clutch actuation system for actuating a friction clutch (18, 20) for coupling a drive shaft (12) of an automobile engine with at least one transmission input shaft (14, 16) of a motor vehicle transmission, with an actuation system (42) for in particular hydraulically actuating the friction clutch (18, 20). of a transmission input shaft (16) for deriving a torque introduced via the friction clutch (18, 20) into the motor vehicle transmission and a bearing (80) according to one of Claims 1 to 8, which supports the actuation system (42) on the transmission input shaft (16).

10. A method for disassembling a clutch actuation system (44), in particular according to claim 9, wherein an actuation system (42) for, in particular, hydraulically actuating a friction clutch (18, 20) is removed from a bearing (80) according to one of claims 1 to 8, the bearing (80) being pressed onto a transmission input shaft (16), a dismantling tool (18). 100) is positively applied to the disassembly element (98) of the bearing (80) and

the bearing (80) is pulled off from the transmission input shaft (16) in the axial direction with the aid of the dismounting tool (100),

wherein a disassembly force applied by the disassembly tool (100) past the transmission input shaft (16) during withdrawal of the bearing (80) is past the second bearing ring (88).