DE102016213544A1 - coupling device - Google Patents

Abstract

The invention relates to a coupling device, which is rotatably mounted about an axis of rotation, wherein coupling device has at least one plate carrier, an actuating element, a securing device and a rotation, wherein the securing device is connected to the plate carrier and an axial direction of movement of the actuating element in at least one direction by a Bounding of the actuating element limited to the securing device, wherein the anti-rotation device positively locks the locking device with the plate carrier and blocks a relative rotation of the securing device relative to the plate carrier in the circumferential direction.

Description

The invention relates to a coupling device according to claim 1 and 8.

From the EP 1 382 872 A1 is known for a multi-plate clutch system.

It is an object of the invention to provide an improved coupling device.

This object is achieved by means of a coupling device according to claim 1 and 8. Advantageous embodiments are given in the dependent claims.

According to the invention, it has been recognized that an improved coupling device can be provided in that the coupling device can be mounted rotatably about an axis of rotation and the coupling device has at least one plate carrier, an actuating element, a safety device and an anti-rotation device, wherein the safety device is connected to the plate carrier and an axial Defined direction of movement of the actuating element in at least one direction by abutting the actuating element to the securing device, wherein the anti-rotation device positively locks the locking device with the plate carrier and blocks a relative rotation of the securing device in the circumferential direction.

This embodiment has the advantage that wear of the securing device and / or unintentional release of the securing device from the plate carrier is reliably effected by the rotation.

In a further embodiment, the plate carrier has an axial section. The securing device has on the axial section a groove extending in the circumferential direction and a securing element. The securing element engages at least partially in the groove. The anti-rotation device has a first engagement element and on the securing element has a recess. The first engagement element is coupled in a torque-locking manner to the plate carrier. The first engagement element engages at least in sections in the recess and coupled to the fuse element torque-locking with the plate carrier.

In a further embodiment, the coupling device has a further plate carrier, a second friction packet and a driver part. The further plate carrier is designed to carry at least one friction partner of the second friction packet. The driver part couples the disk carrier to the other disk carrier in a torque-locking manner. The first engagement element is arranged on the driver part.

In a further embodiment, the recess is arranged on an outer circumferential surface and / or on an inner peripheral surface of the securing element. In a further embodiment, the anti-rotation device on the securing element has a second engagement element. The second engagement element is arranged radially on the outside and / or radially on the inside of the securing element. The second engagement element has a first contact surface. The plate carrier has an end toothing on the axial section, wherein the end toothing has at least one tooth with at least one tooth flank. The first contact surface is located on the first tooth flank. The tooth has a further tooth flank on an opposite side in the circumferential direction. The anti-rotation device has a third engagement element on the securing element. The third engagement element is arranged radially on the outside and / or radially on the inside of the securing element. The third engagement element has a second contact surface. The third engagement element is arranged in the circumferential direction offset from the second engagement element, wherein the tooth is arranged between the second engagement element and the third engagement element. The second contact surface is located on the further tooth flank.

In a further embodiment, the securing element is annular.

In a further embodiment, the coupling device has at least one plate carrier, an actuating element, a friction packet and a securing device, wherein the plate carrier is designed to carry at least one friction partner of the friction packet, wherein the actuating element is designed to introduce an actuating force (F) into the friction packet , The securing device is connected to the plate carrier and limits an axial movement direction of the actuating element in at least one direction by abutting a stop portion of the actuating element on the securing device. The securing device has a securing element. The securing element has a first portion and at least one second portion connected to the first portion. The first section is radially outside of the disk carrier and the second section is arranged radially inward of the disk carrier.

The securing device comprises at least one recess arranged in the plate carrier. At least in sections, the securing element engages in the recess such that the securing element is coupled in a rotationally fixed manner in the circumferential direction to the plate carrier.

In a further embodiment, the securing element comprises at least a third portion, wherein the third portion connects the first portion to the second portion, wherein the first portion is inclined to the third portion and the third portion inclined to the second portion.

In a further embodiment, the first portion is arranged substantially perpendicular to the third portion. Additionally or alternatively, the second portion to the third portion is arranged perpendicular or obliquely inclined, preferably at an acute angle.

In a further embodiment, the first section extends in a direction facing away from the second section, wherein the third section engages through the recess. The second section lies with a free end on the inside of the plate carrier. The third section and / or the second section has an end face on a stop surface, wherein the stop surface is arranged on a side facing the stop portion of the securing element.

In a further embodiment, the first section extends in a direction facing the second section, wherein the third section is arranged on the front side adjacent to the axial section, wherein the second section has a latching means at a free end, wherein the latching means engages in the recess and in axial Direction attached to the fuse element on the plate carrier. In a further embodiment, a web extending in the radial direction is arranged on the second section, wherein a stop surface is arranged on the web, wherein the stop surface is arranged on a side facing the stop section of the actuating element.

In a further embodiment, the plate carrier has a toothing, wherein the toothing comprises a tooth base and at least one tooth flank adjoining the tooth base, wherein the recess is arranged in the tooth base, wherein a free end of the second section on the tooth base and / or on the tooth flank supported. As a result, a particularly rotationally fixed connection of the securing element to the plate carrier can be ensured in the circumferential direction.

In a further embodiment, the recess has a recess surface, wherein the third section comprises a section surface on a side facing away from the second section, wherein the second section is prestressed and presses the section surface against the recess surface. As a result, a reliable clamping connection between the securing element and the plate carrier can be ensured.

In a further embodiment, the securing device has a further securing element and a further recess arranged in the plate carrier, wherein the further recess and the recess are arranged offset from one another in the circumferential direction, wherein the further securing element at least partially engages in the further recess, wherein preferably the securing element and the further securing element and / or the recess and the further recess are formed identically. As a result, the coupling device can be produced in a particularly simple and cost-effective manner.

In a further embodiment, the securing element is bent from a wire or a sheet metal strip or the securing element is punched from a metal sheet. As a result, the securing element can be produced in a particularly simple and cost-effective manner.

In a further embodiment, the coupling device is designed as a double clutch, in particular as a wet-running double clutch.

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

1 a semi-longitudinal section through a coupling device according to a first embodiment;

2 a section of the in 1 shown half longitudinal section;

3 a section of the in 1 shown half longitudinal section;

4 a plan view of a securing element of a securing device in the 1 and 2 shown coupling device;

5 a section of the in 4 shown fuse element;

6 a section of a perspective view of in 1 shown coupling device;

7 a section of a cross section through the in 6 shown coupling device;

8th a section of a cross section through a coupling device according to a second embodiment

9 a plan view of a securing element of in 8th shown coupling device; and

10 a section of a semi-longitudinal section through a coupling device according to a third embodiment;

11 a section of a side view of a plate carrier of in 10 shown coupling device;

12 a perspective view of the in 11 shown plate carrier;

13 a sectional view along an in 10 shown sectional plane AA through the in 10 shown coupling device;

14 a section of a perspective sectional view along an in 10 shown sectional plane AA through the in 10 shown coupling device;

15 a section of a semi-longitudinal section through a coupling device according to a fourth embodiment;

16 a section of a perspective semi-longitudinal section through the in 15 shown coupling device; and

17 a sectional view through a variant of the in the 15 and 16 shown fuse element.

1 shows a semi-longitudinal section through a coupling device 10 ,

The coupling device 10 is rotatable about an axis of rotation 15 stored. The coupling device 10 has an entry page 20 and an exit side 25 on. The entrance page 20 is configured to be torque-connected to an output side of a reciprocating 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 a transmission device available. The second hub 35 advantageously provides a torque-locking connection to a second transmission input shaft 45 the transmission device available. Furthermore, the coupling device comprises 10 advantageously a rotor 50 ,

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 are advantageously designed as lining lamellae. 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 coupling device 10 advantageously has a driver unit 80 on. The driver unit 80 advantageously comprises a first plate carrier 85 , and a driver part 90 , The driver part 90 is adjacent to the first plate carrier 85 on one to the first friction package 55 migrated side arranged. The driver part 90 is torque-locking with the first plate carrier 85 connected.

The first plate carrier 85 is advantageously pot-shaped and has an axially extending axial section 92 and an advantageously radial radial section 93 on. The radial section 93 is radially inside with the rotor 50 connected torque-locking.

Furthermore, the coupling device comprises 10 a first actuating device 105 and a second actuator 110 intended. 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 via lines, hydraulically connected to a controller.

The first actuating device 105 has a first actuating element 125 on. The first actuator 125 extends radially inward from the first pressure chamber 115 radially outwards until the first friction pack 55 , The second actuator 110 includes a second actuator 130 extending radially from the radially inner side disposed second pressure chamber 120 to substantially radially at the height of the second Reibpakets 60 extends.

The coupling device 10 further comprises a second plate carrier 135 , a third plate carrier 140 and a fourth plate carrier 145 , The second, third and fourth plate carrier 135 . 140 . 145 are pot-shaped and each have a radially extending portion and each having an axially extending portion. Radial inside is the second plate carrier 135 torque-locking with the first hub 30 connected. Of the second plate carrier 135 is designed as an inner disk carrier and has a second outer toothing 150 on. The first plate carrier 85 and the second disc carrier 135 form a first annular gap in which the first Reibpaket 55 is arranged.

The third plate carrier 140 is torque-locking with the driver part 90 connected. The driver part 90 self-torque-locking couples the first plate carrier 85 with the third plate carrier 140 ,

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 interlocked so that the first friction partners 65 of the first friction package 55 torque-locking with the first plate carrier 85 are connected.

In the 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.

Is 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 and the first actuating element 125 are on a common axial side of the first friction pack 55 arranged. The radial section 93 serves to provide a corresponding to the actuating force F counterforce F _G. To support the counterforce F _G and the first plate carrier 85 rotatable about the axis of rotation 15 to store is a storage device 126 provided, for example, in a housing 127 the coupling device 10 is attached. By the counterforce F _G and the operating force F are 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 third plate carrier 140 and the fourth plate carrier 145 form a second annular gap in which the second Reibpaket 60 is arranged. Analogous to the configuration of the first disk carrier 85 is the third plate carrier 140 trained and provides a torque-locking connection with the first Reibpartnern 65 of the second friction package 60 ready. Furthermore, the third plate carrier 140 over the driver part 90 torque-locking with the first plate carrier 85 connected. The second friction partners 70 of the second friction package 60 are torque-locking with the fourth plate carrier 145 analogous to the connection of the second friction partner 70 with the second plate carrier 135 connected. The fourth plate carrier 145 is radially inward torque-locking with the second hub 35 connected.

If the pressure fluid in the second pressure chamber 120 initiated, then the second actuating element 130 axially displaced and pressed the second Reibpaket 60 so that the third plate carrier 140 and fourth plate carrier 145 are connected torque-locking. In this case, the torque M is from the input side 20 over the first plate carrier 85 , the driver part 90 to the third plate carrier 140 and about the second friction package 60 in the fourth plate carrier 145 and from there to the second hub 35 forwarded.

To reliably ventilate the first friction pack 55 ensure has the coupling device 10 a first reset device 160 on. The first reset device 160 is exemplary axially between the driver part 90 and the first actuator 125 arranged. The first reset device 160 has a first return spring 165 on. The first return spring 165 is exemplified as a plate spring and supports radially outward on the first actuator 125 , Radially inside, the first return spring is supported 165 via a coupling element 170 the first reset device 160 at the driver part 90 from.

Furthermore, the coupling device 10 for reliably ventilating the second friction pack 60 a second return device 175 with a second return spring 180 on. The second reset device 175 is exemplary axially between the driver part 90 and the second actuator 130 arranged. The second return spring 180 is also exemplified as a plate spring. Radially on the outside, the second return spring is supported 180 at the driver part 90 and radially inside on a second Reibpaket 60 opposite side on the second actuator 130 from.

To reliably reset the actuator 125 . 130 to ensure in the respective rest position, the return spring 165 . 180 biased. So that the biasing force of the return spring 165 . 180 during assembly of the coupling device 10 can be maintained, the coupling device 10 a first securing device 190 and a second securing device 195 on. The first safety device 190 is the first rubbing package 55 and the second securing device 195 is the second rubbing package 60 assigned. The first safety device 190 and the second securing device 195 are formed identically in the embodiment by way of example. They can also be designed differently.

The first actuator 125 has a first stopper portion 200 on. The first stop section 200 extends by way of example in a plane of rotation perpendicular to the axis of rotation 15 ,

In the embodiment, by way of example, the second actuating element 130 similar to the first actuator 125 formed so that the second actuating element 130 a second stopper portion 205 having. The coupling element 170 lies on the second stop section 205 on a second friction package 60 on the opposite side and extends in the axial direction towards the first return spring 165 , The second stop section 205 is wider in the radial direction than the coupling element 170 educated.

2 shows a section of the in 1 shown coupling device 10 ,

The first stop section 200 extends in the embodiment by way of example radially outwardly. The first stop section 200 indicates a second friction package 60 facing away from a second stop surface 230 on.

The first safety device 190 points in the first plate carrier 85 at the axial section 92 a circumferentially extending first groove 210 and a first securing element 215 on. The first security element 215 is exemplified as a locking ring. The first security element 215 engages radially outside in the first groove 210 in sections. In 2 By way of example, on the left side, ie axially between the first friction packet 55 and the first fuse element 215 , the first stop section 200 arranged, wherein the first stop portion 200 partially overlapping radially to the first securing element 215 is arranged. In this case, a radial overlap is understood to mean that, if at least two components, for example the first securing element 215 and the first stopper portion 200 , in a plane of rotation to the axis of rotation 15 be projected, these overlap in the plane of rotation.

Before installing the coupling device 10 in a motor vehicle represents the safety device 190 . 195 sure that the coupling device 10 remains in its assembled state. The first safety device prevents this 190 by striking a first stop surface 220 on a first fuse element 215 facing side of the first stop portion 200 and thus on the first friction package 55 on the opposite side, on the first securing element 215 a relaxation of the first return spring 165 and ensures that the first actuator 125 in a transport position relative to the first disc carrier 85 is arranged.

3 shows a section of the in 1 shown longitudinal section through the coupling device 10 ,

The second stop section 205 extends in the embodiment by way of example radially outwardly. The second stop section 205 indicates a second friction package 60 facing away from a second stop surface 230 on.

Furthermore, the second securing device 195 a second securing element 235 and a second groove 240 on. The second groove 240 is exemplary radially inward on the axial section 92 of the third disc carrier 140 arranged. In the second groove 240 engages the second securing element 235 one. An axial displaceability of the second actuating element 130 is by striking the second stopper portion 205 with its second stop surface 230 on the second securing element 235 on a second friction package 60 blocked away. This will cause the bias of the second return spring 180 maintained.

Radial inside is an example of the groove 210 . 240 running arranged. Of particular advantage here is that for mounting and / or disassembly of the fuse element 215 . 235 the fuse element 215 . 235 a game against the groove 210 . 240 in the radial direction.

4 shows a plan view of the fuse element 215 . 235 , The first security element 215 and the second securing element 235 are in the embodiment by way of example identical and differ only by a different diameter, so in the following simultaneously on both fuse elements 215 . 235 will be received.

The coupling device 10 also has an anti-rotation 245 on. The anti-twist device 245 serves to a relative rotation of the fuse element 215 . 235 relative to the respectively associated first and third disc carrier 85 . 140 to prevent. This will wear the fuse element 215 . 235 avoided. In particular, a chip wear on the fuse element 215 . 235 avoided, so that a high purity of a cooling liquid for cooling the coupling device 10 is ensured. Also, an unintentional release of the safety device 190 . 195 ensured.

The fuse element 215 . 235 is formed annularly with open ends and extends on a circular path about the axis of rotation 15 , Exemplary on an outer peripheral surface 250 of the fuse element 215 . 235 has the anti-rotation lock 245 a first recess 255 on. In the circumferential direction, for example, a plurality of first recesses 255 intended. The first recesses 255 can be arranged in a regular or irregular section.

5 shows a section of the in 4 shown top view of the fuse element 215 . 235 , The recess 255 has a recess contour 260 on, which is chosen exemplary rectangular in the embodiment. This is a recess reason 265 radially inward toward the outer peripheral surface 250 of the fuse element 215 . 235 offset arranged example. Furthermore, the recess contour comprises 260 in the circumferential direction opposite arranged recess edges 270 on, which are arranged in the embodiment, for example, parallel to each other.

6 shows a section of a perspective view of the in 1 shown coupling device 10 ,

The anti-twist device 245 has at least one first engagement element 290 on, on the driver part 90 is arranged. The first engagement element 290 extends by way of example in the axial direction. The first engagement element 290 is corresponding to the first recess 255 educated.

7 shows a section of a cross section through the in 6 shown coupling device 10 ,

The anti-twist device 245 has at least one first engagement element 290 on, on the driver part 90 is arranged. The first engagement element 290 extends by way of example in the axial direction. The first engagement element 290 is corresponding to the recess 255 educated. The first engagement element 290 reaches into the recess 255 one. By the engagement of the first engagement element 290 is a twisting of the fuse element 215 . 235 relative to the first and third disc carrier 85 . 140 on which the fuse element 215 . 235 is arranged by abutting the recess flank 270 on a side surface 295 of the first engagement element 290 avoided. This allows a defined orientation of the fuse element 215 . 235 relative to the plate carrier first and third 85 . 140 be ensured. Furthermore, an imbalance in the coupling device 10 be reduced. Furthermore, the wear of the fuse element 215 . 235 and the associated first and third disc carrier 85 . 140 reduced. Also, due to the defined orientation of the fuse element 215 . 235 , in particular in the embodiment of the securing element 215 . 235 as a circlip with open end, by the defined orientation, the design-related imbalance of the fuse element 215 . 235 be compensated.

The first engagement element 290 may be formed for example as a nose and / or tab. Also, the first engagement element 290 in its geometric configuration as a material extrusion and / or elevation, which is for example punched or embossed to be formed. Also, the first engagement element 290 as a bent tab of the driver part 90 be educated. In particular, it is conceivable that the side surface 295 of the first engagement element 290 is designed as an edge. Of course, it is also conceivable that the first engagement element 290 is formed differently. Also, the recess 255 and / or as a window in the fuse element 215 . 235 be educated.

In the embodiment, a plurality of first engagement elements 290 on a circular path around the axis of rotation 15 arranged. The orientation of the first engagement element 290 is corresponding to the arrangement of the recesses 255 selected.

As described above, both the first fuse element 215 as well as the second securing element 235 To secure against rotation, for example, several first engagement elements 290 on the driver part 90 arranged in the radial direction corresponding to the arrangement of the first and second securing element 215 . 235 are arranged.

8th shows a section of a cross section through a coupling device 10 according to a second embodiment.

The coupling device 10 is similar to the one in the 1 to 7 shown coupling device 10 educated. For the torque-locking connection of the driver part 90 with the first plate carrier 85 and the third disc carrier 140 has the first plate carrier 85 and the third plate carrier 140 each one spur toothing 300 on, through which the first plate carrier 85 and the third plate carrier 140 is formed basket-like. The spur toothing 300 is on a to radial section 93 opposite side of the first disc carrier 85 and the third disc carrier 140 arranged. The spur toothing 300 has a first tooth 305 and a second tooth 310 on. Between the first tooth 305 and the second tooth 310 is a gap between teeth 315 intended. On the tooth 305 . 310 is the second internal toothing 155 continued. The second internal toothing 155 stiffen the tooth 305 . 310 the spur toothing 300 , The tooth 305 . 310 has a first tooth flank 320 and a second tooth flank 325 on. The tooth flank 320 . 325 extends in the radial direction and is arranged for example in a plane in which the axis of rotation 15 runs. Also, the tooth flank 320 . 325 oblique to the plane in which the axis of rotation 15 runs, be arranged.

The anti-twist device 245 has a second engagement element in the embodiment 330 and a third engagement element 335 on. The second engagement element 330 and the third engagement element 335 are exemplary on the outer peripheral surface 250 of the fuse element 215 . 235 arranged. Also, the second and / or third engagement element 330 . 335 on an inner peripheral surface 340 of the fuse element 215 . 235 be arranged. The second engagement element 330 points to a first tooth 305 facing side a first contact surface 345 and the third engagement element 335 on a first tooth 305 facing side a second contact surface 350 on. The contact surface 345 . 350 is corresponding to the respective facing tooth flank 320 . 325 aligned. The tooth 305 . 310 is between the second engagement element 330 and the third engagement element 335 arranged, wherein the first bearing surface 345 of the second engagement element 330 on the first tooth flank 320 and the second contact surface 350 of the third engagement element 335 on the second tooth flank 325 of the tooth 305 . 310 is applied. The second engagement element 330 and / or the third engagement element 335 intervenes in the interdental space 315 and is spaced from the second tooth 310 arranged. By simultaneously applying the contact surfaces 345 . 350 on the tooth flanks 320 . 325 in both directions of rotation a reliable form-fitting rotation 245 of the fuse element 215 . 235 opposite the first and third disc carrier 85 . 140 ensured. This will wear the fuse element 215 . 235 avoided.

9 shows a plan view of the in 8th shown fuse element 215 . 235 , On the fuse element 215 . 235 the anti-twist device has at least one further engagement element 355 on. The other engagement elements 355 can be identical to the second and / or third engagement element 335 . 330 be educated. It is in the circumferential direction, a distance between the other engagement elements 355 with each other and a distance in the circumferential direction of the further engagement element 355 to the second engagement element 330 and / or to the third engagement element 335 different, preferably greater than a distance in the circumferential direction between the second engagement element 330 and the third engagement element 335 , Due to the spaced arrangement of the further engagement elements 355 opposite the second and / or third engagement element 330 . 335 can reliably in the circumferential direction twisting and tilting of the fuse element 215 . 235 be avoided. Furthermore, each of the further engagement elements lies 355 a facing contact surface 245 . 250 another tooth 305 . 310 the spur toothing 300 at.

It should be noted that in the 1 to 9 shown features of the coupling device 10 , in particular the anti-rotation 245 and / or the securing device 190 . 195 , can also be formed differently. In particular, it is conceivable that the rotation 245 and / or the securing device 190 . 195 in a different structural design of the coupling device 10 also on the second plate carrier 135 and / or on the fourth plate carrier 145 is provided. It is also conceivable that the safety device 190 . 195 and / or the rotation 245 only on the first plate carrier 85 or on the third plate carrier 140 is arranged.

Furthermore, it is also conceivable that the second engagement element 330 and / or the third engagement element 335 on the inner peripheral surface 340 of the fuse element 215 . 235 is arranged.

It is particularly advantageous if the further engagement element 355 adjacent to an opening 360 of the fuse element 215 . 235 is arranged so that an imbalance of the fuse element 215 . 235 can be compensated thereby. It is also conceivable that instead of the further engagement element 355 a Materialausprägung, such as a nose or tab on the fuse element 215 . 235 to compensate for the imbalance on the fuse element 215 . 235 is provided.

Furthermore, by the rotation 245 a defined installation position of the fuse element 215 . 235 relative to the associated first and third disc carrier 85 . 140 established. This avoids an imbalance during operation. Furthermore, by the rotation 245 an additional loss, for example by accelerating the fuse element 215 . 235 , excluded in operation and thus is also a backup of the actuator 125 . 130 safely ensured in its installed position. In particular, this ensures that the return spring 165 . 180 the actuator 125 . 130 pushed out again during assembly.

Furthermore, by the axial fixing of the actuating element 125 . 130 a pushing out and a loss of a pressure piston of the actuator 105 . 110 prevented. In particular, this ensures during transport of the coupling device 10 the installation position of the individual components of the coupling device 10 ,

Will the coupling device 10 installed in the mounted state in the motor vehicle, so the actuator 105 . 110 Reliable support, so that the safety device 190 . 195 is load-free in the axial direction. By the rotation lock 245 and the security device 190 . 195 Furthermore, tumbling, for example during acceleration, deceleration, in particular during the engine start and engine stop process, is also avoided.

10 shows a section of a semi-longitudinal section through a coupling device 10 according to a third embodiment.

The coupling device 10 is similar to the one in the 1 to 9 shown coupling device 10 educated. Deviating from this, the coupling device 10 a differently designed security device 400 on. Furthermore, on the rotation 245 as in the 1 to 9 shown, omitted.

The safety device 400 includes a fuse element 405, and preferably one identical to the fuse element 405 trained further securing element 406 , which are arranged offset in the circumferential direction to each other. It is particularly advantageous if at least three security elements 405 . 406 are provided, which are arranged offset to one another, for example, at an angle of 120 °.

Furthermore, the securing device comprises 400 a recess 410 that exemplifies the first plate carrier 85 is arranged. The recess 410 is formed as a passage opening. The recess 410 has a recess contour 415 on.

11 shows a section of a side view of the first plate carrier 85 the in 10 shown coupling device 10 ,

The recess contour 415 the recess 410 is exemplary rectangular, preferably square, formed. In this case, the recess 410 a first recessed area 420 and one opposite to the first recess surface 420 arranged second recess surface 425 on. The first recess surface 420 and the second recess surface 425 are parallel to the axis of rotation 15 extending and offset in the circumferential direction. Furthermore, the recess has 410 a first recess end face 430 and a second recess end surface 435 on. The first recess end face 430 and the second recess end surface 435 are in each case arranged offset planes of rotation to the axis of rotation 15 arranged.

Furthermore, the securing device comprises 400 for example, at least one further recess 440 , The further recess 440 is identical to the recess 410 educated. In the further recess the further securing element engages 405 . 406 one. The further recess 440 is circumferentially offset from the recess 410 arranged.

12 shows a perspective view of the in 11 shown first disc carrier 85 , The second internal toothing 155 on the first plate carrier 85 has a plurality of circumferentially offset from each other teeth 445 on that through a tooth gap 450 are separated. Every tooth 445 has a first tooth flank 455 and a second tooth flank 460 on. Between the teeth 445 has the second internal toothing 155 a tooth base 464 on. The tooth base 464 is disposed radially farther outward than a tooth tip in the embodiment 463 the second internal toothing 155 , In the embodiment, for example, the recess 410 . 440 in the tooth base 464 arranged. Also, the recess 410 . 440 also in a tooth head 470 the second internal toothing 155 or in the tooth flank 455 . 460 be arranged.

13 shows a sectional view along an in 10 shown sectional plane AA through the in 10 showed coupling device 10 ,

The fuse element 405 . 406 has a first section 465 , a second section 470 and at least a third section 475 on. The third section 475 connects the first section 465 with the second section 470 and is thus between the first section 465 and the third section 475 arranged. The third section 475 extends in the radial direction, preferably perpendicular to the axis of rotation 15 , The first paragraph 465 is radially outside of the first disk carrier 85 arranged. The second section 470 is radially inside of the disk carrier 85 arranged.

The first paragraph 465 is in the embodiment by way of example perpendicular to the third section 475 arranged and runs in the circumferential direction. The first paragraph 465 is radially outside with the third section 475 connected. Radially inside is the third section 475 with the second section 470 connected. The second section 470 is exemplary inclined in the embodiment inclined, preferably at an acute angle, to the third section 475 arranged. Also could be the second section 470 perpendicular to the third section 475 be arranged. In this case, the first section extends 465 in one to the second section 470 away from the third section away. In this case, the second section extends 470 in one to the first section 465 opposite direction from the third section 475 path. The third section 475 passes through the recess 410 , The second section 470 lies with a free end 480 inside on the first plate carrier 85 at.

Of particular advantage is when a first edge 485 at the free end 480 of the second section 470 on the second tooth flank 460 , preferably at a transition between the second tooth flank 460 and the tooth base 464 , is present. It is also advantageous if the second section 470 opposite the third section 475 is biased and provides a clamping force F _S , wherein the clamping force F _S at the free end 480 on the second tooth flank 460 supported. One at the free end 480 arranged second edge 486 is radially inside of the tooth base 464 arranged. Between the second edge 486 and the tooth base 464 is a gap 487 arranged.

The third section 475 points to a to the second section 470 opposite side of a section area 491 on. The section area 491 is preferably parallel to the first recess surface 420 arranged. The second section 470 presses with the clamping force F _S section area 491 to the first recess surface 420 , From the second recess surface 425 is the third section 475 spaced apart in the circumferential direction. Further, there is an inner peripheral surface 491 of the first section 465 the first paragraph 465 on an outer peripheral surface 495 of the first disk carrier 85 at.

This embodiment has the advantage that the securing element 405 . 406 Can be bent from a flat sheet metal blank by a simple stamping bending process. Furthermore, in a simple manner, the securing element 405 . 406 by an insertion from radially outward to radially inward of the second and third sections 470 . 475 through the recess 410 on the first plate carrier 85 be mounted, wherein in an end position of the securing element 405 . 406 the second section 470 completely through the recess 410 is guided and snaps into its final position while the second tooth flank 460 is applied. Also, the second section 470 at the base of the tooth 465 issue. It is also conceivable that the second section 470 at the free end 480 both at the base of the tooth 465 as well as on the second tooth flank 460 is applied.

14 shows a detail of a perspective sectional view along an in 10 shown sectional plane AA through the in 10 shown coupling device 10 ,

Front side on a first stop section 200 facing end face, the securing element 405 . 406 on the second and third sections 470 . 475 a stop surface 499 or BZ double, preferably in a plane of rotation to the axis of rotation 15 runs. By abutting the stopper portion 200 on the stopper surface 499 of the fuse element 405 . 406 becomes an axial displaceability of the first actuating element 125 limited. This is a tilting of the fuse element 405 . 406 in the recess 410 by a substantially identical configuration of the same width in the axial direction of the securing element 405 . 406 and the recess 410 ensured. Also prevents the concern of the free element 480 at least as line contact on the second tooth flank 455 . 460 a tilting of the fuse element 405 . 406 relative to the first plate carrier 85 , It should be noted that the safety device 400 of course also on the other plate carriers 135 . 140 . 145 may be provided to the axial displacement of each of the Reibpaket 55 . 60 associated actuating element 125 . 130 to limit.

It should be noted that the safety device 400 also on one of the other plate carriers 85 . 135 . 140 . 145 can be arranged.

15 shows a section of a semi-longitudinal section through a coupling device 10 according to a fourth embodiment.

The coupling device 10 is similar to the one in the 10 to 14 shown coupling device 10 educated. Deviating from this is the recess 410 as indentation on the inner peripheral surface 276 of the first disk carrier 85 arranged. Of course, the recess 410 as in the 10 to 14 also be formed as a passage opening.

The safety device 400 has a fuse element 500 on, similar to that in the 10 to 14 shown fuse element 405 . 406 is trained. The fuse element 500 is as well as in the 10 to 14 shown formed clip-like. Here, the first section extend 465 and the second section 470 in a common direction from the third section 475 path. The first and second sections 465 . 470 run in the axial direction. The first paragraph 465 is radially outside of the first disk carrier 85 arranged. The second section 470 runs radially inside of the first plate carrier 85 , In this case, preferably lies the second section 470 at the base of the tooth 465 the second internal toothing 155 at. Opposite the in 10 to 14 the embodiment shown engages the third section 475 not the recess 410 , but is frontally on a radial section 93 opposite side of the axial section 92 arranged and connects the first section 465 with the second section 470 , It is particularly advantageous if a distance a of the first section 465 to the second section 470 in the radial direction substantially a material thickness d of the first disk carrier 85 at the base of the tooth 465 equivalent.

At the third section 475 has the fuse element 500 further exemplified a bridge 510 on. The jetty 510 extends in the radial direction and has a to the first stop portion 200 facing side a third stop surface 515 on. In the embodiment, the web is 510 exemplary perpendicular to the second section 470 arranged. But it can also be arranged obliquely. The third stop surface 515 is parallel to the first stop surface 220 arranged.

Further, at the free end 480 of the second section 470 on one to the first friction package 55 zugwandten page a locking means 520 intended. The locking means 520 can be a catch 525 exhibit on a the third section 475 facing side a locking surface 530 having. The locking surface 530 is parallel to the second recess end face 435 arranged. In the assembled state, the detent engages 525 into the recess 410 one, wherein the locking surface 530 at the second recess end face 435 is applied. Of particular advantage here is when a distance of the locking surface 530 to the third section 475 essentially a distance of an end face 540 to the second recess end face 435 equivalent. By the locking means 520 can reliably an axial position of the fuse element 500 on the first plate carrier 85 be determined. Furthermore, by the engagement of the locking means 520 into the recess 410 also the security element 500 rotationally fixed in the circumferential direction on the first plate carrier 85 become.

To the fuse element 500 rotationally fixed in the circumferential direction with the first plate carrier 85 to connect is also in this embodiment, the second section 470 opposite the first section 465 biased, so that by a frictional engagement between the inner peripheral surface 490 of the first section 465 and the outer peripheral surface 495 of the first disk carrier 85 and between the outer peripheral surface 545 of the second section 470 and the inner peripheral surface 276 of the first disk carrier 85 a frictional connection takes place, the securing element 500 non-rotatable with the first plate carrier 85 combines. The frictional engagement is maintained by the biasing force F _S.

That in the 15 and 16 For example, can be injection molded from plastic or stamped from a sheet metal.

17 shows a sectional view through a variant of the in the 15 and 16 shown fuse element 500 , The fuse element 500 is bent from a wire. Also, the fuse element 500 be punched out of a flat sheet metal blank, for example. Here, in the axial direction, for example, the web 510 offset to at least one of the sections 465 . 470 . 475 arranged.

The in the 10 to 17 shown embodiment of the fuse element 405 . 406 . 500 can easily from radially outside ( 10 to 13 ) or axial ( 14 to 17 ) on the first plate carrier 85 be deferred. Due to the elastic and resilient design of the fuse element 405 . 406 . 500 can the fuse element 405 . 406 . 500 also dismantled and reassembled non-destructively. The fuse element 405 . 406 . 500 may, for example, plastic or sheet metal as a material.

It should be noted that in the 10 to 17 shown embodiment of the securing device 400 exemplarily on the first plate carrier 85 has been described. Of course, the safety device 400 also on another plate carrier 135 . 140 . 145 are arranged, in particular on the third plate carrier 140 and the second actuator 130 on the third plate carrier 140 secure in the axial direction.

The coupling device described in the figures 10 is formed in the embodiment as a double clutch. Here, the double clutch is designed as a wet-running double clutch, so that a cooling liquid is provided to the friction packs 55 . 60 to cool. Of course, it is also conceivable that the coupling device 10 as a simple clutch - so with just a friction package 55 . 60 - is trained. It is also conceivable that the coupling device 10 is designed as a dry coupling. Also, other embodiments of the coupling device 10 conceivable.

LIST OF REFERENCE NUMBERS

10

 coupling device

15

 axis of rotation

20

 input side

25

 output side

30

 first hub

35

 second hub

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 unit

85

 first plate carrier (outer plate carrier)

86

 pressure ring

90

 driver part

91

 first connection

92

 axial section (axial section)

93

 radial section (radial section)

95

 second connection

100

 inner space

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 (inner plate carrier)

140

 third plate carrier (outer plate carrier)

145

 fourth plate carrier (inner plate carrier)

150

 second external toothing

155

 second internal toothing

160

 first reset device

165

 first return spring

170

 coupling element

175

 second reset device

180

 second return spring

190

 first safety device

195

 second securing device

200

 first stop section

205

 second stop section

210

 first groove

215

 first fuse element

220

 first stop surface

230

 second stop surface

235

 second fuse element

240

 second groove

245

 twist

250

 outer peripheral surface

255

 recess

260

 recessed contour

265

 recess base

270

 recess edge

276

 inner peripheral surface of the axial section

285

 inner peripheral surface of the fuse element

290

 first engagement element

295

 Side surface of the first engagement element

300

 spur gearing

305

 first tooth

310

 second tooth

315

 Interdental

320

 first tooth flank

325

 second tooth flank

330

 second engagement element

335

 third engagement element

340

 inner peripheral surface

345

 first contact surface

350

 second contact surface

355

 further engagement elements

360

 opening

400

 safety device

405

 fuse element

408

 free element

410

 recess

415

recess contour

420

 first recess surface

425

 second recess surface

430

 first recess end face

435

 second recess end face

440

 another recess

445

 tooth

450

 Interdental

455

 first tooth flank

460

 second tooth flank

463

 addendum

464

 tooth root

465

 first section

470

 second part

463

 addendum

475

 third section

480

 free end

485

 first edge

486

 second edge

490

 inner peripheral surface of the first section

491

 section area

495

 outer peripheral surface of the plate carrier

499

 stop surface

500

 fuse element

505

 inner peripheral surface

509

 face

510

 web

515

 third stop surface

520

 latching means

525

 locking lug

530

 Rest area

540

 face

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 (18)

Coupling device ( 10 ) which is rotatable about an axis of rotation ( 15 ) is storable, - wherein coupling device ( 10 ) at least one disc carrier ( 85 . 135 . 140 . 145 ), an actuator ( 125 . 130 ), a safety device ( 190 . 195 ) and an anti-twist device ( 245 ), the safety device ( 190 . 195 ) with the plate carrier ( 85 . 135 . 140 . 145 ) is connected and an axial direction of movement of the actuating element ( 125 . 130 ) in at least one direction by abutting the actuating element ( 125 . 130 ) at the safety device ( 190 . 195 ), the anti-twist device ( 245 ) the safety device ( 190 . 195 ) in a form-fitting manner with the plate carrier ( 85 . 135 . 140 . 145 ) and a relative rotation of the safety device ( 190 . 195 ) relative to the plate carrier ( 85 . 135 . 140 . 145 ) blocked in the circumferential direction. Coupling device ( 10 ) according to claim 1, - wherein the plate carrier ( 85 . 135 . 140 . 145 ) an axial section ( 92 ), the safety device ( 190 . 195 ) at the axial section ( 92 ) a circumferentially extending groove ( 210 ) and a security element ( 215 ,), - wherein the securing element ( 215 ,) into the groove ( 210 ) intervenes at least in sections, - wherein the anti-rotation device ( 245 ) a first engagement element ( 290 ) and on the security element ( 215 . 235 ) a recess ( 255 ), wherein the first engagement element ( 290 ) with the plate carrier ( 85 . 135 . 140 . 145 ) is torque-coupled, - wherein the first engagement element ( 290 ) at least in sections in the recess ( 255 ) and the securing element ( 215 . 235 ) torque-locking with the plate carrier ( 85 . 135 . 140 . 145 ) couples. Coupling device ( 10 ) according to claim 2, - comprising a further plate carrier ( 140 ), a second friction package ( 60 ) and a driver part ( 90 ), - wherein the further plate carrier ( 140 ) is formed, at least one friction partner ( 65 . 70 ) of the second rubbing package ( 60 ), the driver part ( 90 ) the plate carrier ( 85 ) torque-locking with the other disc carrier ( 140 ), - wherein the first engagement element ( 290 ) on the driver part ( 90 ) is arranged. Coupling device ( 10 ) according to claim 2 or 3, - wherein the recess ( 255 ) on an outer peripheral surface ( 250 ) or on an inner peripheral surface ( 340 ) of the security element ( 215 . 235 ). Coupling device ( 10 ) according to one of claims 2 to 4, - wherein the anti-rotation device ( 245 ) on the security element ( 215 . 235 ) a second engagement element ( 330 ), wherein the second engagement element ( 330 ) radially on the outside and / or radially on the inside of the securing element ( 215 . 235 ) is arranged, - wherein the second engagement element ( 330 ) a first contact surface ( 345 ), wherein the plate carrier ( 85 . 135 . 140 . 145 ) at the axial section ( 92 ) a spur toothing ( 300 ), - wherein the spur toothing ( 300 ) at least one tooth ( 305 . 310 ) with at least one tooth flank ( 320 . 325 ), - wherein the first contact surface ( 345 ) on the first tooth flank ( 320 ) is present. Coupling device ( 10 ) according to claim 5, - wherein the tooth ( 305 . 310 ) on a side opposite in the circumferential direction another tooth flank ( 325 ), - wherein the anti-rotation device ( 245 ) on the security element ( 215 . 235 ) a third engagement element ( 335 ), - wherein the third engagement element ( 335 ) radially on the outside and / or radially on the inside of the securing element ( 215 . 235 ), - wherein the third engagement element ( 335 ) a second contact surface ( 350 ), - wherein the third engagement element ( 335 ) offset in the circumferential direction to the second engagement element ( 330 ) is arranged, - wherein between the second engagement element ( 330 ) and the third engagement element ( 335 ) the tooth ( 305 . 310 ), - wherein the second bearing surface ( 350 ) on the further tooth flank ( 325 ) is present. Coupling device ( 10 ) according to one of claims 2 to 6, - wherein the securing element ( 215 . 235 ) is annular. Coupling device ( 10 ) which is rotatable about an axis of rotation ( 15 ) is storable, - wherein the coupling device ( 10 ) at least one disc carrier ( 85 . 135 . 140 . 145 ), an actuator ( 125 . 130 ), a friction package ( 55 . 60 ), a safety device ( 400 ), - wherein the plate carrier ( 85 . 135 . 140 . 145 ) is formed, at least one friction partner ( 65 . 70 ) of the friction package ( 55 . 60 ), the actuating element ( 125 . 130 ) is formed, an actuating force (F) in the friction package ( 55 . 60 ), the safety device ( 400 ) with the plate carrier ( 85 . 135 . 140 . 145 ) and an axial direction of movement of the Actuating element ( 125 . 130 ) in at least one direction by abutting a stop portion ( 200 . 205 ) of the actuating element ( 125 . 130 ) at the safety device ( 400 ), - the safety device ( 400 ) a fuse element ( 405 . 406 . 500 ), wherein the securing element ( 405 . 406 . 500 ) a first section ( 465 ) and at least one with the first section ( 465 second section ( 470 ), the first section ( 465 ) radially on the outside of the disk carrier ( 85 . 135 . 140 . 145 ) and the second section ( 470 ) radially inward of the disk carrier ( 85 . 135 . 140 . 145 ) is arranged. Coupling device ( 10 ) according to claim 8, - wherein the safety device ( 400 ) at least one in the plate carrier ( 85 ) arranged recess ( 410 ), wherein the securing element ( 405 . 406 . 500 ) at least in sections so in the recess ( 410 ) engages that the security element ( 405 . 406 . 500 ) rotationally fixed in the circumferential direction with the plate carrier ( 85 . 135 . 140 . 145 ) is coupled. Coupling device ( 10 ) according to one of claims 8 or 9, - wherein the securing element ( 405 . 406 . 500 ) at least a third section ( 475 ), the third section ( 475 ) the first section ( 465 ) with the second section ( 470 ), the first section ( 465 ) inclined to the third section ( 475 ) and the third section ( 475 ) inclined to the second section ( 470 ) are arranged. Coupling device ( 10 ) according to claim 10, wherein the first section ( 465 ) substantially perpendicular to the third section ( 475 ), and / or - wherein the second section ( 470 ) to the third section ( 475 ) is arranged perpendicular or obliquely inclined, preferably at an acute angle. Coupling device ( 10 ) according to one of claims 9 to 11, - wherein the first section ( 465 ) into a second section ( 470 ) opposite direction, - wherein the third section ( 475 ) the recess ( 410 ), the second section ( 470 ) with a free end ( 480 ) on the inside of the plate carrier ( 85 . 135 . 140 . 145 ), the third section ( 475 ) and / or the second section ( 470 ) frontally a stop surface ( 499 ), wherein the stop surface ( 499 ) on a to the stop section ( 200 . 205 ) facing side of the fuse element ( 405 . 406 . 500 ) is arranged. Coupling device ( 10 ) according to one of claims 9 to 11, - wherein the first section ( 465 ) into a second section ( 470 ) facing the direction, - wherein the third section ( 475 ) at the end face on the axial section ( 92 ) is arranged adjacent, - wherein the second section ( 470 ) at a free end ( 480 ) a latching means ( 520 ), wherein the latching means ( 520 ) in the recess ( 410 ) engages and in the axial direction the securing element ( 500 ) on the plate carrier ( 85 . 135 . 140 . 145 ) attached. Coupling device ( 10 ) according to claim 13, wherein at the second section ( 470 ) extending in the radial direction web ( 510 ) is arranged, - whereby at the bridge ( 510 ) a stop surface ( 515 ), - the stop surface ( 515 ) on a to the stop section ( 200 . 205 ) of the actuating element ( 125 . 130 ) facing side is arranged. Coupling device ( 10 ) according to one of claims 9 to 14, - wherein the plate carrier ( 85 . 135 . 140 . 145 ) a gearing ( 155 ), - the toothing ( 155 ) a tooth base ( 465 ) and at least one to the tooth base ( 465 ) adjacent tooth flank ( 455 . 460 ), wherein the recess ( 410 ) in the tooth base ( 465 ), - with a free end ( 480 ) of the second section ( 470 ) at the tooth base ( 465 ) and / or on the tooth flank ( 455 . 460 ) is supported. Coupling device ( 10 ) according to one of claims 9 to 15, - wherein the recess ( 410 ) a recess surface ( 420 ), the third section ( 475 ) on one to the second section ( 470 ) facing away from a section area ( 491 ), the second section ( 470 ) and the section surface ( 491 ) to the recess surface ( 420 ) presses. Coupling device ( 10 ) according to claim 9 to 16, - wherein safety device ( 400 ) another securing element ( 406 . 500 ) and one in the plate carrier ( 85 . 135 . 140 . 145 ) arranged further recess ( 440 ), wherein the further recess ( 440 ) and the recess ( 410 ) are arranged offset in the circumferential direction to one another, - wherein the further securing element ( 406 . 500 ) in the further recess ( 440 ) engages at least in sections, - preferably wherein the securing element ( 406 . 500 ) and the further security element ( 405 . 406 . 500 ) and / or the recess ( 410 ) and the further recess ( 440 ) are formed identically. Coupling device ( 10 ) according to one of claims 8 to 17, - wherein the securing element ( 405 . 406 . 500 ) is bent from a wire or a sheet metal strip, and / or - wherein the securing element ( 405 . 406 . 500 ) is punched from a sheet.

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