DE102015225034A1 - Plate carrier connection - Google Patents

Abstract

The invention relates to a plate carrier connection for a coupling device, which is rotatably mounted about an axis of rotation which defines an axial direction, storable. The disk carrier connection comprises a first disk carrier and a further disk carrier, wherein the first disk carrier has a first radial portion and a first axial portion, which are interconnected. The first axial section is designed to carry at least one friction partner of a first friction packet. A further plate carrier further comprises a second axial section, wherein the second axial section of the further plate carrier is designed to carry a friction partner of a second friction packet. The first plate carrier and the further plate carrier are connected to one another in a torque-locking manner by means of a positive connection, wherein the positive connection has at least one recess formed in the first plate carrier with a recess contour and also at least one engaging element corresponding to the recess and axially frontally disposed on a first end of the further plate carrier comprises an outer contour, so that the engagement element resiliently engages under bias in the recess and braces the other disc carrier with the first disc carrier in the circumferential direction and / or in the radial direction largely free of play.

Description

The invention relates to a plate carrier connection for a coupling device according to claim 1.

That from the EP 1 382 872 A1 known multi-plate clutch system consists essentially of a drive plate and a clutch basket.

It is an object of the invention to provide an improved disc carrier connection for a coupling device.

This object is achieved by means of a plate carrier connection according to claim 1. Advantageous embodiments are given in the dependent claims.

To achieve the object, a plate carrier connection is provided for a coupling device which can be mounted rotatably about an axis of rotation which defines an axial direction. The plate carrier connection further comprises a first plate carrier and a further plate carrier, wherein the first plate carrier has a first radial portion and a first axial portion, which are interconnected. The first axial section is designed to carry at least one friction partner of a first friction packet. A further plate carrier further comprises a second axial section, wherein the second axial section of the further plate carrier is designed to carry a friction partner of a second friction packet. The first plate carrier and the further plate carrier are connected to one another in a torque-locking manner by means of a positive connection, wherein the positive connection has at least one recess formed in the first plate carrier with a recess contour and also at least one engaging element corresponding to the recess and axially frontally disposed on a first end of the further plate carrier comprises an outer contour, so that the engagement element resiliently engages under bias in the recess and braces the other disc carrier with the first disc carrier in the circumferential direction and / or in the radial direction largely free of play.

In a further embodiment, the recess has a closed recess contour. As a result, centrifugal force-induced widening of the engagement element or of the further disk carrier can be prevented in a simple manner.

Advantageously, the outer contour of the engagement element over the recess contour of the recess to an excess, so that the positive connection provides a circumferentially acting clamping force F _SU and / or acting in the radial direction of the clamping force F _SR , wherein the circumferentially acting clamping force F _SU and / or in the radial direction acting clamping force F _SR presses the engagement element according to the circumferential direction and / or in the radial direction of the recess contour. This refinement has the advantage that the two disk carriers can be connected to one another as far as possible without play, as a result of which a particularly maintenance-friendly and a particularly favorable disk carrier connection for a clutch device can be provided.

In an advantageous embodiment, the recess contour of the recess at least partially a first toothing and the outer contour of the engagement element at least partially a second toothing, wherein the first toothing and the second toothing form and function complementary to each other and engage in the inserted state into each other, preferably the first toothing is an inner toothing and the second toothing is an outer toothing, or wherein preferably the first toothing is an outer toothing and the second outer toothing is an inner toothing.

In a preferred embodiment, the engagement element has at least one slot-like recess in the region of the second toothing, wherein it is particularly advantageous if the slot-like recess extends axially as far as the first end of the further disc carrier. The engagement element is preferably rounded or beveled at the first end in such a way that it is possible to easily insert the engagement element into the recess.

In another embodiment, positive connection further comprises at least one securing device for axially fixing the first plate carrier relative to the further plate carrier. For this purpose, the further plate carrier has at least one circumferential groove in the region of the engagement element, wherein the securing device has at least one securing element, preferably a securing ring, which is arranged in the inserted state within the groove. The securing ring is preferably arranged on a side of the first radial section of the first plate carrier facing away from the friction packet.

Other features, applications and advantages of the invention will become apparent from the following description of the embodiments of the invention, which are illustrated in the figures. It should be noted that the features shown are only a descriptive character and may also be used in combination with features of other developments described above and are not intended to limit the invention in any way.

The invention will be explained in more detail with reference to figures. Showing:

1 a semi-longitudinal section through a coupling device along a first sectional plane;

2 a section of the in 1 shown half longitudinal section through the in 1 shown coupling device;

3 an exploded view of a plate carrier connection according to the invention of 1 shown coupling device;

4 a detail of a perspective half-longitudinal section through a plate carrier connection according to a first embodiment; and

5 a section of a semi-longitudinal section through the first plate carrier of in 4 shown plate carrier connection.

1 shows a semi-longitudinal section through a coupling device 10 with a plate carrier connection 100 in a first embodiment of the invention. The coupling device 10 sits between a multi-shaft gearbox and the drive motor of the vehicle and has an input side 20 and an exit side 25 on. The drive motor is usually a gasoline or diesel engine. The exit side 25 the coupling device 10 advantageously comprises a first hub 30 and a second hub 35 , The first hub 30 advantageously provides a torque-locking connection to a first transmission input shaft 40 (Shown by a dashed line) a transmission device available. The second hub 35 advantageously provides a torque-locking connection to a second transmission input shaft 45 (Shown by a dashed line) of the transmission device available, wherein the operation and the arrangement of the transmission device of a clutch assembly according to the invention from the prior art are well known, so that here for the sake of scarcity of description is dispensed with a detailed description. The engine torque passes through a crankshaft and a flywheel on a driver part 90 , which with the input side 20 the coupling device 10 is connected torque-locking, for example, with a first connection 91 , in particular a welded joint.

Furthermore, the coupling device comprises 10 advantageously a rotor 50 which is formed with a control device of the coupling device 10 to be connected.

The coupling device 10 advantageously comprises a first friction packet 55 and a second friction package 60 , In the embodiment, the first friction pack is an example 55 advantageously radially outward to the second Reibpaket 60 arranged. The two friction packages 55 . 60 each have first and second friction partners 65 . 70 on. Here is the first friction partner 65 Advantageously designed as a non-wearing friction plate, while the second friction partner 70 is advantageously designed as a lining plate. Of course, other embodiments are conceivable. In this case, the first friction partner 65 advantageously a first external toothing 75 and the second friction partner 70 advantageously a first internal toothing 79 on. The annular first and second friction partners 65 . 70 the respective friction packages 55 . 60 alternately interlock and form a friction package 55 . 60 ,

The coupling device 10 advantageously has a driver part 90 on. The driver part 90 is axially adjacent to the first plate carrier 85 on a first rubbing package 55 arranged on the opposite side. The driver part 90 is advantageously formed like a disk and is radially inside with the input side 20 the coupling device 10 torque-connected, for example by a first connection 91 , in particular a welded joint.

The first plate carrier 85 is advantageously pot-shaped and advantageously has a first axial section 92 and a first radial portion 93 on. The first radial section 93 is radially inward via a second connection 95 , which is formed in the embodiment as a welded joint, with the rotor 50 connected torque-locking.

Furthermore, the coupling device comprises 10 a first actuating device 105 and a second actuator 110 , The first actuating device 105 has a first pressure chamber 115 and the second actuator 110 a second pressure chamber 120 on. The two pressure chambers 115 . 120 are not shown lines, preferably in sections in the rotor 50 are arranged, hydraulically connected to the control unit. The first actuating device 105 has a first actuating element 125 on. The first actuator 125 extends from radially inward of the first pressure chamber 115 radially outwards until the first friction pack 55 , The second actuator 110 includes a second one actuator 130 extending radially from the radially inner side disposed second pressure chamber 120 until essentially at the height of the second friction pack 60 extends. The two pressure chambers 115 . 120 can be acted upon independently of each other by supplying hydraulic fluid with a hydraulic pressure. In this case, the respective actuating element 105 . 110 against the force of a return element 401 . 402 axially in the direction of the respective disk pack 55 . 60 moves and brings the friction partners 65 . 70 the respective friction packages 55 . 60 in frictional engagement.

The coupling device 10 further comprises a second plate carrier 135 , another, further plate carrier 140 and a fourth plate carrier 145 , The second, further and / or fourth plate carrier 135 . 140 . 145 is pot-shaped and each has a radially extending portion and each having an axially extending portion. Radial inside the radially extending portion is the second plate carrier 135 torque-locking with the second hub 35 connected. The second plate carrier 135 has a second external toothing 150 on. The first plate carrier 85 limited with the first axial section 92 radially inwardly toward a first annular gap 151 , Radially inside is the first annular gap 151 through the second plate carrier 135 limited. The first annular gap 151 is in the axial direction through the first radial section 93 and by the driver part 90 limited. In the first annular gap 151 is the first rubbing package 55 arranged.

The coupling device 10 thus includes the first outer friction package 55 with a plurality of first friction partners 65 carrying the first plate carrier 85 and a plurality of second friction partners 70 carrying further plate carrier 140 , as well as the second inner friction package 60 with a plurality of first friction partners 65 carrying further plate carrier 140 and with a plurality of second friction partners 70 carrying the fourth plate carrier 145 ,

The first plate carrier 85 has a second internal toothing 155 on. The second internal toothing 155 and the first external toothing 75 the first friction partner 65 are formed corresponding to each other, wherein the first outer toothing 75 in the second internal toothing 155 of the first disk carrier 85 engages, so the first friction partners 65 of the first friction package 55 torque-locking with the first plate carrier 85 are connected.

In a second external toothing 150 grips the first internal toothing 79 the second friction partner 70 of the first friction package 55 one, so the second friction partners 70 torque-locking with the second plate carrier 135 are connected.

The further, further plate carrier 140 is advantageously pot-shaped and has a second axial section 160 and advantageously a second radial section 165 on. The second radial section 165 is related to the second friction package 60 on a first radial section 93 arranged opposite side. The second radial section 165 is radially outside with the second axial section 160 connected.

The further plate carrier 140 is about a third connection 170 torque-locking with the first plate carrier 85 connected. The further plate carrier 140 limited with the second axial section 160 a second annular gap 175 radially inward. Radial inside, the second annular gap 175 through the fourth plate carrier 145 limited. In the axial direction, the second annular gap 175 through the first radial section 93 and the second radial portion 165 limited. In the second annular gap 175 is the second rubbing package 60 arranged.

Will over the rotor 50 a pressurized fluid in the first pressure chamber 115 initiated, so is the first actuator 125 in the axial direction in the direction of the first Reibpakets 55 postponed. One is over the first pressure chamber 115 provided actuating force F via the first actuating element 125 in the first rubbing package 55 initiated.

The driver part 90 is on a the first actuator 125 in the axial direction opposite side of the first Reibpakets 55 arranged. The driver part 90 serves to provide a corresponding to the actuating force F counterforce F _G. As a result, by means of the first actuating element 125 the friction partners 65 . 70 of the first friction package 55 axially pressed against each other, so that the friction partners 65 . 70 build up a frictional connection and the first plate carrier 85 torque-locking with the second plate carrier 135 connect. In this way, a torque M from the input side 20 over the driver part 90 , the first plate carrier 85 and the first friction package 55 in the second plate carrier 135 and over this into the second hub 35 be initiated.

The further plate carrier 140 points in the second axial section 160 a third toothing, which in the example shown as internal toothing 180 is executed. The third internal toothing 180 is preferably corresponding to the first outer toothing 75 of the first friction partner 65 of the second friction package 60 educated. The third internal toothing 180 and the first external toothing 75 interlock, so the first friction partners 65 of the second friction package 60 torque-locking with the second axial portion 160 are connected.

The second friction partners 70 of the second friction package 60 are torque-locking with the fourth plate carrier 145 on one of the connection of the second friction partner 70 of the first friction package 55 with the second plate carrier 135 similar way connected. The fourth plate carrier 145 is radially inward torque-locking with the first hub 30 connected.

Will the pressurized fluid over the rotor 50 in the second pressure chamber 120 initiated, then the second actuating element 130 moved axially. This is the over the second pressure chamber 120 provided actuating force F via the second actuating element 130 in the second rubbing package 60 initiated. The second radial section 165 provides the counterforce F _G , so that the second friction package 60 is pressed and the first friction partner 65 with the second friction partner 70 forms a frictional connection, via which a torque lock between the other plate carrier 140 and the fourth plate carrier 145 provided. In this case, the torque M is from the input side 20 over the driver part 90 to the first plate carrier 85 and from this via a positive connection 170 on the other plate carrier 140 transfer. From the other plate carrier 140 the torque M is over the second friction pack 60 to the fourth plate carrier 145 and from there to the first hub 30 forwarded.

In order during and in the provision of the actuating force F in the friction partners 65 . 70 , in particular by grinding the friction partners 65 . 70 to each other, introduced heat from the Reibpaket 55 . 60 to dissipate, is the coupling device 10 arranged in a housing, not shown, wherein the housing is at least partially filled with a cooling liquid.

2 shows a section of the in 1 shown coupling device 10 , The positive connection 170 has frontal on the other plate carrier 140 at least one engagement element 295 on. The engagement element 295 preferably extends parallel to the axis of rotation 15 ,

As in detail in the 3 . 4 and 5 shown, has the positive connection 170 in the first radial section 93 of the first disk carrier 85 a corresponding to the engagement element 295 trained recess 310 on. It is for each engagement element 295 one recess each 310 intended. The engagement element 295 the further plate carrier 140 engages in the recess assigned to it 310 a, so in this way the further plate carrier 140 torque-locking with the first plate carrier 85 connected is. The recesses 310 each have a recess contour 315 on. The corresponding to the recesses 310 axially frontally at the first end of the further disc carrier 140 arranged engagement elements 295 each have a corresponding to the recess contours 315 positive outer contour 305 on. The cutout contour 315 the recess 310 forms at least partially a first toothing 320 and the outer contour 305 of the engagement element 295 at least in sections a form and function complementary second gearing 325 out, so that the gears 320 . 325 mesh in the inserted state.

At least one outer contour 305 an engagement element 295 , but advantageously every outer contour 305 , points opposite to a respective corresponding recess contour 315 a recess 310 , Advantageously opposite each recess contour 315 an excess, causing the engagement element 295 elastic under bias in the recess 310 intervenes. Thus, the positive connection provides 170 a circumferentially acting clamping force F _SU and / or acting in the radial direction of the clamping force F _SR , whereby the outer contour 305 of the engagement element 295 to the recess contour 315 the recess 310 pressed and thus the further disc carrier 140 with the first plate carrier 85 is clamped largely free of play in the circumferential direction and / or in the radial direction. By such a positive connection 170 becomes a centrifugal expansion of the second axial section 160 avoided. Accordingly, it is advantageous if the recess contour 315 is formed closed as shown in the figures.

The engagement element 295 is axially frontally on the first radial section 93 facing side of the second axial section 160 arranged and forms a third toothing 325 out. Furthermore, the engagement element 295 each a slot-like recess 297 in the area of the second toothing 325 on, with the slot-like recess 297 axially to the first end of the further disk carrier 140 runs, whereby the engagement element 295 elastic under bias in the respective recesses 310 engage and the other plate carrier 140 with the first plate carrier 85 clamped in the circumferential direction and / or in the radial direction largely free of play.

To insert the engagement element 295 in the recess 310 to facilitate or facilitate, is the engagement element 295 rounded off at the first end or chamfered. In the illustrated embodiment, by way of example, the internal toothing 180 in sections in the engagement element 295 continued axially. Of course, the internal teeth 180 also on the second axial section 160 be limited, in which case would be the engagement element 295 a different profile have as the second axial portion 160 , Preferably, in the circumferential direction and preferably at a regular distance offset from each other more engagement elements 295 arranged.

4 shows a section of a perspective half-longitudinal section through a plate carrier connection 100 the coupling device 10 according to a first embodiment. The plate carrier connection 100 is a detail of the in the 1 to 3 shown plate carrier connection 100 , The positive connection 170 indicates the torque-locking connection of the first plate carrier 85 with the further plate carrier 140 the engagement element 295 on, the front side of the axial section 160 the further plate carrier 140 is arranged. The engagement element 295 extends in the axial direction largely parallel to the axis of rotation 15 , The engagement element 295 has an external toothing designed as a toothing 300 with an outer contour 305 on. Alternatively, it is also conceivable that on the engagement element 295 an internal toothing is provided.

Axially adjacent to the first plate carrier 85 has the connection 170 a safety device 206 on. The safety device 206 includes a radially inner side of the outer teeth 300 arranged circumferential groove 210 and a circlip 215 , The circlip 215 reaches into the recess 210 and lies on the front side of the first plate carrier 85 on a the friction package 55 . 60 opposite side of the first disc carrier 85 at. The safety device 206 secures the axial position of the other disc carrier 140 opposite the first plate carrier 85 , In the illustrated embodiment, the groove 210 radially inward from the other plate carrier 140 arranged so that also the circlip 215 extends radially inward. Alternatively, a radially outer side arrangement is conceivable. To the axial fixation of the other disc carrier 140 to ensure against the first plate carrier is the locking ring 215 on a the friction package 55 . 60 opposite side of the first radial section 93 of the first disk carrier 85 arranged.

The invention is not limited to the embodiments described, but also includes equivalent other embodiments. The description of the figures is only for understanding the invention.

LIST OF REFERENCE NUMBERS

10

 coupling device

15

 axis of rotation

20

 input side

25

 output side

40

 first transmission input shaft

45

 second transmission input shaft

50

 rotor

55

 first friction package

60

 second friction package

65

 first friction partner

70

 second friction partner

75

 first external toothing

79

 first internal toothing

80

 driver part

85

 first plate carrier (plate carrier)

91

 Weld

92

 axial section

93

 radial section

105

 first actuating device

110

 second actuating device

115

 first pressure chamber

120

 second pressure chamber

125

 first actuating element

130

 second actuator

135

 second plate carrier (plate carrier)

140

 further plate carrier (plate carrier)

145

 fourth plate carrier (plate carrier)

150

 second external toothing

155

 second internal toothing

160

 axial section

165

 radial section

170

 positive-locking connection

180

 third toothing - internal toothing

190

 spur gearing

206

 safety device

210

Groove, recess

215

 circlip

295

 engaging member

297

 slit-like recess

300

 external teeth

305

 Outer contour of the engagement element

310

 recess

315

 recessed contour

320

 first toothing - external toothing

325

 Internal toothing - second toothing

335

 second gearing

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1382872 A1 [0002]

Claims (11)

Plate carrier connection ( 100 ) for a coupling device ( 10 ) which is rotatable about an axis of rotation ( 15 ), which defines an axial direction, is storable; - wherein a first plate carrier ( 85 ) a first radial section ( 93 ) and a first axial section ( 92 ), wherein the first axial section ( 92 ) with the first radial section ( 93 ) and is formed, at least one friction partner ( 65 . 70 ) of a first friction package ( 55 ) to wear; - wherein a further plate carrier ( 140 ) a second axial section ( 160 ), wherein the second axial section ( 160 ), a friction partner ( 65 . 70 ) of a second friction package ( 60 ) to wear; - wherein the first plate carrier ( 85 ) and the further plate carrier ( 140 ) by means of a positive connection ( 170 ) are torque-connected with each other; - wherein the positive connection ( 170 ) at least one in the first plate carrier ( 85 ) formed recess ( 310 ) with a recess contour ( 315 ) having; - wherein the positive connection ( 170 ) at least one corresponding to the recess ( 310 ) axially frontally at a first end of the further disk carrier ( 140 ) arranged engagement element ( 295 ) with an outer contour ( 305 ); and - wherein the engagement element ( 295 ) resilient under bias in the recess ( 310 ) engages and the other disc carrier ( 140 ) with the first plate carrier ( 85 ) clamped in the circumferential direction and / or in the radial direction largely free of play. Plate carrier connection ( 100 ) according to claim 1, wherein the recess contour ( 315 ) is closed. Plate carrier connection ( 100 ) according to claim 1 or 2, wherein the outer contour ( 305 ) of the engagement element ( 295 ) opposite the recess contour ( 315 ) of the recess ( 310 ) has an oversize, so that the positive connection ( 170 ) provides a clamping force (F _S ) acting in the circumferential direction and / or in the radial direction, wherein the clamping force (F _S ) is the engagement element (F _S ). 295 ) in the circumferential direction and / or in the radial direction of the recess contour ( 315 ) presses. Plate carrier connection ( 100 ) according to one of claims 1 to 3, wherein the engagement element ( 295 ) at least one slot-like recess ( 297 ) in the region of the second toothing ( 325 ) having. Plate carrier connection ( 100 ) according to claim 4, wherein the slot-like recess ( 297 ) axially to the first end of the further disk carrier ( 140 ) runs. Plate carrier connection ( 100 ) according to one of claims 1 to 5, wherein the engagement element ( 295 ) is designed rounded or beveled at the first end in such a way that easy insertion of the engagement element ( 295 ) in the recess ( 310 ). Plate carrier connection ( 100 ) according to one of claims 1 to 6, wherein the recess contour ( 315 ) of the recess ( 310 ) at least partially a first toothing ( 320 ) and the outer contour ( 305 ) of the engagement element ( 295 ) at least in sections a second toothing ( 325 ), wherein the first toothing ( 320 ) and the second gearing ( 325 ) are formed complementary in shape and function to each other and engage each other in the inserted state. Plate carrier connection ( 100 ) according to one of claims 1 to 7, wherein the positive connection ( 170 ) at least one safety device ( 206 ) for axially fixing the first disk carrier ( 85 ) with respect to the further plate carrier ( 140 ) having. Plate carrier connection ( 100 ) according to claim 8, wherein the further plate carrier ( 140 ) at least one circumferential groove ( 210 ) in the region of the engagement element ( 295 ) having. Plate carrier connection ( 100 ) according to claim 8 or 9, wherein the safety device ( 206 ) at least one securing element, preferably a retaining ring ( 215 ), wherein the retaining ring ( 215 ) in the inserted state within the groove ( 210 ) is arranged. Plate carrier connection ( 100 ) according to one of claims 8 to 10, wherein the retaining ring ( 206 ) on a friction package ( 55 . 60 ) facing away from the first radial portion ( 93 ) of the first disk carrier ( 85 ) is arranged.

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