CN110249148B

CN110249148B - Clutch devices, hybrid modules and drive trains for motor vehicles

Info

Publication number: CN110249148B
Application number: CN201880010140.3A
Authority: CN
Inventors: E·洛伦茨; R·诺伊库姆
Original assignee: Schaeffler Technologies AG and Co KG
Current assignee: Schaeffler Technologies AG and Co KG
Priority date: 2017-02-24
Filing date: 2018-01-25
Publication date: 2021-05-25
Anticipated expiration: 2038-01-25
Also published as: DE112018000985A5; WO2018153398A1; DE102017130479A1; KR20190121307A; KR102570876B1; CN110249148A

Abstract

A clutch device and a hybrid module for a motor vehicle for coupling an internal combustion engine and a transmission, and a drive train for a motor vehicle with an internal combustion engine and a hybrid module according to the invention. The clutch device comprises at least one disk carrier (90) and a disk pack (71, 81), by which the disk pack has at least one disk connected in a torque-proof manner to the driver device (100) of the disk carrier (90), in particular the toothing, the clutch The device ( 70 , 80 ) also has a pressure element ( 75 , 85 ), in particular a pressure pot, and a coil spring ( 76 , 86 ), which is supported axially with its radial outer edge ( 200 ) on the sheet carrier ( 90 ) And it is supported axially on the pressure element (75, 85) with its radial inner edge (201). With the clutch device proposed here and the equipped hybrid module, a unit is provided which can be produced cost-effectively and can be assembled with low tolerances in a simple and manual as well as automated manner.

Description

Clutch device, hybrid module and drive train for a motor vehicle

Technical Field

The invention relates to a clutch device and a hybrid module for a motor vehicle for coupling an internal combustion engine and a transmission, and to a drive train for a motor vehicle having an internal combustion engine and a hybrid module according to the invention.

Background

Hybrid modules available today, which enable a combination of electric motor operation and internal combustion engine operation by coupling the internal combustion engine to the drive train of a motor vehicle, generally have an electric motor, a separating clutch, an operating system of the separating clutch, bearings and a housing part which connects the three main parts to form one functional unit.

The electric motor can realize electric driving, power increase for the operation of the internal combustion engine and residual energy reutilization. The separating clutch and its operating system are responsible for coupling and decoupling the internal combustion engine. When the hybrid module is combined with the double clutch such that the hybrid module is located between the internal combustion engine and the transmission in the torque transmission direction, the internal combustion engine, the hybrid module, the double clutch and its operating system and the transmission must be arranged in the vehicle one behind the other or side by side.

The hybrid module so positioned is also denoted as a P2 hybrid module. However, such arrangements often lead to serious installation space problems, which also affect or prevent assembly.

A hybrid module is known from DE 102009059944 a1, which has a separating clutch inside the rotor of an electric machine. The partial clutches of the dual clutch device are arranged axially offset next to the rotor of the electric machine and therefore also next to the separating clutch. In this case, the partial clutches are radially nested one within the other. The actuating systems for the individual clutches are arranged axially offset next to the clutches.

DE 102007008946 a1 describes a multiple clutch for a vehicle with hybrid drive. In this hybrid module, two friction clutches are arranged inside a space enclosed by the rotor of the electric machine. The installation space provided in the hybrid module is largely predefined by the electric machine used and its sheet metal set.

Disclosure of Invention

Starting from this, the object underlying the invention is to provide a clutch device, a hybrid module and a drive train for a motor vehicle, which combine a small installation space with the possibility of simple assembly or low tolerance maintenance at low cost.

This object is achieved by the following clutch device, hybrid module and drive train.

The features of the claims can be combined in any technically meaningful manner, wherein for this purpose reference can also be made to the statements made in the following description and to the features in the drawings, which comprise complementary embodiments of the invention. The axial and radial direction descriptions relate to a common axis of rotation of the mentioned components. Thus, the axial direction is oriented orthogonal to the friction face of the plate.

The invention relates to a clutch device for the frictional transmission of torque, comprising at least one plate carrier and a plate package, in which at least one plate is connected in a torque-proof manner to a driver, in particular a toothing, of the plate carrier. Further, the clutch device includes: a pressure element, which is configured in particular as a pressure tank; and a coil spring axially supported with its radially outer edge on the sheet carrier and with its radially inner edge on the pressure element. A clutch device is therefore provided which ensures a reliable opening or a reliable spacing of the plates of the plate package when the clutch device is not in operation, with a reduced number of components and a small volume requirement.

In a further preferred embodiment, provision is made for the disk spring to be fixed in its angular position about the axis of rotation of the clutch device. The axis of rotation therefore means the following axis: the rotatable unit of the clutch device is rotatable about the axis. It is thus ensured that the respective spiral spring cannot slip off the circumferentially interrupted support realized by the toothing on the sheet carrier.

For ease of assembly, the outer diameter of the respective spiral spring should be smaller than the smallest radial extent of the axial opening in the pressure element embodied as a pressure tank or smaller than the axial opening in the axially acting actuating element interacting with the pressure element. This advantageous embodiment is particularly suitable for simple assembly, which makes it possible to achieve assembly of the spiral spring in the already positioned pressure vessel or axially acting actuating element through the axial opening of the pressure vessel or actuating element.

A further aspect of the invention is a hybrid module for a motor vehicle for coupling an internal combustion engine and a transmission, comprising at least one clutch device according to the invention and an electric machine, the rotor of which is connected in a rotationally fixed manner to a rotor carrier, wherein the rotor carrier is coupled in a rotationally fixed manner to a plate carrier of the clutch device, such that a torque applied by the rotor of the electric machine can be transmitted to the plate carrier.

In an advantageous embodiment of the hybrid module according to the invention, it is provided that the hybrid module has two clutch devices, wherein each clutch device has at least one disk set, wherein the clutch devices are arranged axially next to one another, wherein each of the two clutch devices arranged next to one another is assigned an operating system, and wherein the respective pressure element is axially supported on the respective operating system. In a corresponding manner, an actuating force can be applied axially by a corresponding actuating system to the pressure element, which transmits the actuating force either directly to the disk packet of the corresponding clutch device or indirectly via an axially acting actuating element.

The invention is not necessarily limited to the arrangement of only one spiral spring per clutch device, but rather a spiral spring assembly can also be provided for each clutch device, i.e. a plurality of spiral springs are present in a parallel arrangement as a compact unit.

This arrangement of the disk spring makes it possible to carry out the return movement of the plates of the plate package of the clutch device in a simple manner, without requiring a large amount of installation space for additional structural elements.

The clutch device can be configured as a wet clutch.

For actuating the clutch devices arranged axially next to one another, the axially acting actuating element mechanically connected to the pressure plate of one of the two clutch devices can be guided through the sheet pack of the axially adjacent clutch device in order to transmit axial movement through the sheet pack. The clutch device comprising the plate package is provided with an operating system which can be located inside or outside the space enclosed by the plate carrier in the radial and axial directions. Accordingly, the actuating system, which is mechanically coupled to the actuating element passing axially through the plate package, can also be located inside or outside the space enclosed radially and axially by the plate carrier. The actuation system can be assigned to two partial clutch devices of the dual clutch device.

The driver means, which are preferably provided as toothed sections, are arranged here at the same distance from the common axis of rotation for transmitting a torque to two clutch means arranged axially next to one another, wherein, however, in axially adjacent clutch means, the webs which do not interact with the driver means of the web carrier have a smaller radial extent than the radial extent of the adjacent clutch means, since the axially acting actuating elements are guided through the web stack between the radial end sides of the webs and the driver means.

When axially pressing the sheet packs of one clutch device together, the respective disk spring should be arranged and constructed such that the operational feasibility of the clutch device arranged axially beside the one clutch device is obtained without limitation. In particular, when the clutch devices are arranged axially next to one another, a disk spring is provided in each case, so that in the compressed and uncompressed state they do not interfere with one another or interfere with one another.

For easy assembly or for automated assembly, the two spiral springs should also have different outer diameters, in the region of which they are axially fixed on the sheet carrier. This means that in a preferred arrangement of two clutch devices arranged next to one another, the spiral springs associated with these clutch devices rest against the plate carrier in a stepped offset manner.

In a further advantageous embodiment, it is provided that the hybrid module further has a plug-in module having a substantially rotationally symmetrical blade carrier, wherein the blade carrier has substantially the shape of a hollow annular cylinder composed of two hollow cylinders arranged rotationally symmetrically, and the driver means are arranged in a space (abgegernzten) radially spaced apart by the blade carrier on at least one of the inner sides of the hollow annular cylinder facing each other. The plate packs of the two clutch devices are arranged radially offset from one another, and the driver devices are arranged in the spaces radially separated by the plate carriers on the sides of the two hollow cylinders of the hollow annular cylinder which are radially spaced apart and facing one another for connection with at least one plate of the plate packs.

This means that the driver means are arranged in the hollow annular cylinder space radially separated by the plate carrier on the inner sides radially opposite one another, on which the plate pack engages in a rotationally fixed manner, so that the plate pack engages on the opposite inner sides.

The rotor carrier is preferably configured in its shape at least in regions complementary to the outer shape of the plate carrier, so that the rotor carrier forms a hollow space in the shape of a hollow cylinder, into which the plug-in module according to the invention can be fitted and preferably connected in a form-fitting manner to the rotor carrier, for example by means of external teeth which interact in a rotationally fixed manner with the internal teeth of the rotor carrier. This means that the rotor carrier surrounds the segment carrier at least in regions in the radial direction.

The modular assembly of the hybrid module can be achieved by means of a separately producible plug-in module.

One of the two radially offset clutch devices can be a separating clutch.

The actuating system for the separating clutch can be arranged axially on the side of the plate carrier opposite the two mentioned actuating systems, wherein the actuating element associated with the actuating system passes axially through the connecting element on the end side of the hollow annular cylinder of the plate carrier.

The separating clutch device is in particular connected to the input side of the hybrid module. Correspondingly, two partial clutch devices of the double clutch device are also provided next to the separating clutch, the sheet packs of which are connected to the output side of the hybrid module. They are clutch devices arranged axially side by side.

The blades of the blade set are applied to the driver in a torque-proof manner, and axial displacement can be permitted. For this purpose, the driver is preferably designed as a plug-in toothing. The hollow annular cylinder is a body, the inner hollow cylinder of which forms an outer side which is radially opposite the inner side of the outer hollow cylinder.

Furthermore, the hybrid module can have a further clutch device in the axial direction next to one of the two radially offset clutch devices, in which a further clutch device also has at least one web arranged on a driver on the inside of the hollow cylinder, on which driver at least one web of the sheet set of the axially adjacent clutch devices is also arranged. Each of the two axially adjacent clutch devices is assigned a pressure element, in particular a pressure pot, and a disk spring, which is supported with its radially outer edge on the plate carrier and with its radially inner edge on the pressure element, such that the two disk springs are arranged axially next to one another.

In particular, it is provided that the sheet packs of the first and second sub-clutch devices of the double clutch device are arranged on the inside of the outer hollow cylinder and the sheet packs of the separator clutch are arranged on the outside of the inner hollow cylinder. On these sides of the hollow cylinder, the sheets of the sheet pack engage on the driver realized there.

The driver means are preferably designed as a toothing with teeth which are distributed over the respective circumference and which extend axially. In this case, at least one supporting element can be integrated in the toothing, which supporting element serves to receive an actuating force applied axially to the clutch device for actuating the respective clutch device. Thus, for example, such a support element is a recess in the toothing, at which recess the counter-pressure plate of the plate pack is axially supported or can be supported.

Thus, a plug-in module which can be tested outside the hybrid module is provided as a subassembly or subassembly and is also referred to as Triple-Clutch (Triple-Clutch) when three Clutch devices are received.

The advantage of this plug-in module is, in particular, the high dimensional stability in the assembled state or the low assembly tolerances, for the following reasons: almost all the assembly steps and measuring processes required for the production of plug-in modules, which are provided for the hybrid modules, can be carried out outside the rotor of the electric machine of the hybrid module, so that the geometric relationships of the clutch devices with respect to each other and with respect to the plate carriers can be adjusted to the respective desired actual values in a reliable manner.

In addition, the adjustment process at the clutch device can thereby be carried out more simply or more precisely.

The plug-in module also makes it possible for the plug-in module to be produced for different hybrid modules or rotor carriers, wherein only the contour of the plug-in module is produced in a manner adapted to the rotor carrier in order to provide a unit as a so-called "Add in", which can be integrated into the rotor carrier independently of position and time.

Despite the arrangement of three sheet packs, the plug-in module according to the invention offers the advantage of being easy to handle in assembly, in particular on an assembly line and when mounting into a rotor carrier of a hybrid module to be produced, so that assembly and assembly can be carried out manually or also automated in a simplified manner and without being prone to faults.

In this way, a simple, cost-effective and installation space-saving return of the plates of the friction pack of the clutch device is achieved in the hybrid module.

In order to form a mechanical unit which simplifies the assembly process, it is provided that the hollow annular cylinder of the chip carrier has at least one end-side connecting element which connects two hollow cylinders of the hollow annular cylinder to one another in the radial direction.

In order to transmit torque from the rotationally driven component to the disk carrier or in the opposite direction, it is provided that the disk carrier has at least one torque transmission element on its radial outside. In this way, torque can be transmitted from the sheet carrier to the rotor carrier of the hybrid module, which radially surrounds the sheet carrier, and in the opposite direction.

The torque transmission elements can also be teeth which enable the blade carrier or the entire plug-in module to be axially moved into the rotor carrier.

The segment carrier can be designed in one piece or in multiple pieces, in particular in two pieces, wherein the segment carrier has an inner part and an outer part, and the mechanical connection of the inner part and the outer part is carried out at a radial position between the radial positions of the inner hollow cylinder and the outer hollow cylinder. The end-side connecting element can thus be divided in particular into two parts, wherein the outer part of the end-side connecting element is arranged on or embodied by the outer part of the sheet metal carrier, and the inner part of the end-side connecting element is arranged on or embodied by the inner part of the sheet metal carrier, and a mechanical connection is embodied between the inner part of the end-side connecting element and the outer part of the end-side connecting element. Such a mechanical connection can be realized by a plurality of screw connections or rivet connections realized in the circumferential direction of the connection region or by a Clinch (Clinch) connection or a welded connection. The multiple-part nature of the sheet carrier enables the sheet carrier to be produced using simpler or more cost-effective production methods. The multiple-part nature of the plate carriers furthermore opens up the possibility of different mounting sequences of the plate carriers into the rotor carrier of the hybrid module, since one of the inner and outer parts can be arranged in or on the rotor carrier first, if appropriate a clutch device can be installed into the space enclosed by the rotor of the electric machine of the hybrid module, and then the other parts of the plate package, which if appropriate have already been equipped with a further clutch device, can only be installed.

The invention also relates to a drive train for a motor vehicle, having an internal combustion engine and a hybrid module according to the invention and having a transmission, wherein the hybrid module can be or has been mechanically connected to the internal combustion engine and the transmission by means of a clutch device of a plug-in module in the hybrid module.

In addition, according to the invention, a method for assembling a drive train according to the invention is provided, which method has the following steps: providing a plug-in module of a hybrid module according to the invention; providing a rotor carrier of a plug-in module of a hybrid module according to the invention; providing an output shaft of an internal combustion engine; mounting the blade carrier of the plug-in module in a space radially enclosed by a rotor carrier; a rotationally fixed mechanical connection between the output shaft and one of the clutch devices of the plug-in module; a torsion-resistant mechanical connection is realized between the sheet carrier and the rotor carrier; at least one coil spring is arranged with its radially outer edge on the sheet carrier, and at least one pressure element is arranged such that it is axially supported on the coil spring. The steps for producing the respective rotationally fixed connection are not necessarily carried out in the stated order. Before the rotationally fixed connection between the output shaft and one of the clutch devices of the plug-in module is realized, the housing part of the hybrid module, to which the plug-in module is to be associated, is mounted on the output shaft so as to be rotatable. An actuator or an actuating system for actuating one of the clutch devices, in particular a separating clutch, can be arranged in or on a wall of the housing part. The rotor of the electric machine is arranged on a rotor carrier so as to be rotationally fixed relative to the rotor carrier, which rotor carrier can be arranged on a section of the housing part such that the rotor carrier is rotationally movable relative to the housing part. During the assembly process, the plug-in module is moved axially into the rotor carrier by means of the separating clutch received therein and a further clutch device, for example a starting clutch. The intermediate shaft coupled to the plug-in module or to one of the clutch devices (which intermediate shaft is coupled, for example, to the input side of the clutch) is coupled in a rotationally fixed manner to the output shaft of the internal combustion engine.

The hybrid module is therefore assembled such that, in the case of a plurality of clutch devices arranged axially next to one another, a corresponding number of disk springs are positioned on the inside of the second hollow cylinder of the plate carrier. After this, a pressure element is positioned for each clutch device, which pressure element is axially supported on the disk spring belonging to the pressure element. The assembly method is supplemented by the arrangement of an actuating system for the clutch devices, which are in turn supported axially on the pressure elements associated with them or are arranged such that the pressure elements are supported axially on the actuating system when the respective actuating system is actuated.

Drawings

The above invention is explained in detail below in the related art background with reference to the accompanying drawings showing preferred configurations. The invention is not in any way restricted to the purely schematic illustration, wherein it should be noted that the embodiments shown in the drawings are not limited to the dimensions shown. It shows

FIG. 1: the hybrid module according to the invention in partial section,

FIG. 2: the sheet carrier of the first embodiment in partial cross-section,

FIG. 3: the sheet carrier of the second embodiment in partial cross-section,

FIG. 4: the sheet carrier of the third embodiment in partial cross-section,

FIG. 5: axial support of the coil spring on the sheet carrier of the first alternative,

FIG. 6: axial support of the coil spring on the sheet carrier of the second alternative, and

FIG. 7: axial support of the coil spring on the third alternative sheet carrier,

FIG. 8: the part of the hybrid module according to the invention shown in partial section in figure 1,

FIG. 9: an enlarged view of a partial region of the detail shown in FIG. 8, an

FIG. 10: an enlarged view of a partial area of the detail shown in fig. 8 with the tools indicated.

Detailed Description

The intermediate shaft 32 of the hybrid module 10 coupled to the hybrid module 10 shown in fig. 1 is coupled or connected to an output shaft of an internal combustion engine (not shown), for example, via a damper (not shown here), for example, a dual-mass flywheel.

The countershaft 32, which represents the input side 11 of the hybrid module 10, is coupled in a rotationally fixed manner to the outer plate carrier 54 of the separating clutch 50. The plates of the plate pack 51 of the separating clutch 50 are arranged here in an annular cylinder space 91 formed by the plate carrier 90, i.e. here on the outside 94 of a first hollow cylinder 93 of the plate carrier 90.

The chip carrier 90 has an end-side connecting element 110, by means of which the first hollow cylinder 93 is radially coupled to the second hollow cylinder 95. On its inner side 96, the sheet groups 71, 81 of the first and second

sub-clutch devices

70, 80 are arranged, which together form the dual clutch device 60.

The inner plate carrier 74 of the first partial clutch device 70 is provided for transmitting torque from the plate package 71 of the first partial clutch device 70 to a first transmission input shaft, not shown here.

The inner plate carrier 84 of the second sub-clutch device 80 is provided for transmitting torque from the plate package 81 of the second sub-clutch device 80 to a second transmission input shaft, not shown here. The two

inner sheet carriers

74, 84 form the output side 12 of the hybrid module 10. On the outer side 94 of the first hollow cylinder 93 and on the inner side 96 of the second hollow cylinder 95, driver means 100 are arranged, preferably in the form of teeth, which interact positively with the plates of the plate packs 51, 71, 81 of the separator clutch 50, the first partial clutch device 70 and the second partial clutch device 80.

The first hollow cylinder 93 and the second hollow cylinder 95 of the sheet carrier 90 are arranged coaxially with each other.

The tablet carrier 90 has support elements 101, which are embodied here in the form of recesses or grooves, on the outer side 94 of the first hollow cylinder and on the inner side 96 of the second hollow cylinder 95. The support element 101 serves to receive and axially support the counter plate 73 of the first sub-clutch device 70 on the inner side 96 of the second hollow cylinder 95 and to receive and axially support the counter plate 53 of the separator clutch 50 on the outer side 94 of the first hollow cylinder 93, when the respective plate set 51, 71 is loaded axially by the

respective operating system

52, 72 and is supported on the

counter plate

53, 73.

It can be seen that an axially acting operating element 83 for operating the second sub-clutch device 80 extends axially through the sheet pack 71 of the first sub-clutch device 70.

An actuator or actuating system 52 for actuating the separating clutch 50 is provided on an axial side of the hybrid module 10 which faces the internal combustion engine in the state in which the hybrid module 10 is installed in the drive train of the hybrid vehicle. Actuators or

actuating systems

72, 82 for actuating the first and second

sub-clutch devices

70, 80 are arranged on the side of the hybrid module 10 which faces the transmission in the installed state of the hybrid module 10 in the drive train of the hybrid vehicle. This means that the actuator or operating system 52 for actuating the separating clutch 50 has an operating direction which is oriented in the opposite direction with respect to the operating direction of the actuator or

operating system

72, 82 for actuating the first and/or second

sub-clutch device

70, 80.

The plate carrier 90 for carrying the plates of the plate packs 71, 81 of the first and second

sub-clutch devices

70, 80 is provided as a separate component with respect to the rotor carrier 30 (for rotationally fixed arrangement of the rotor 22 of the electric machine 20) of the hybrid module 10.

The rotor carrier 30 and the sheet carrier 90 are connected or coupled to one another in a rotationally fixed manner by means of the torque transmission elements 120, so that a rotation of the rotor carrier 30 causes a rotation of the sheet carrier 90. The torque transmitting member 120 can be realized by means of, for example, milling, screwing, drilling, pinning or the like.

The sheet carrier 90 is arranged on the rotor carrier 30 in a rotationally fixed manner in the space formed by the rotor carrier 30.

The rotor carrier 30 serves to receive or arrange the rotor 22, which is arranged radially on the inside of the stator 21 of the electric machine 20. The rotor 22 as well as the rotor carrier 30 and the plug-in module 40 are all arranged substantially coaxially on a common axis of rotation 1.

The rotor carrier is supported here by a rolling bearing 140 on a housing part 31, which in turn is supported radially on the intermediate shaft 32.

By configuring the rotor carrier 30 and the plate carrier 90 as separate components from one another, a plug-in module 40 with a separating clutch 50 and a starting clutch device, embodied here as a partial

clutch device

70, 80, can be realized, which can be moved axially into the rotor carrier 30 of the hybrid module 10 in a simple manner, which allows modular assembly of the hybrid module 10.

When the hybrid module 10 is assembled into a drive train or the hybrid module 10 is installed in a drive train, the housing part 31 is mounted on the output shaft of the internal combustion engine in such a way that the output shaft is rotationally movable relative to the housing part 31. An actuator or operating system 52 for operating the separating clutch 50 is arranged in the wall of the housing part 31. On which the rotor 22 of the electric machine 20 is arranged in a rotationally fixed manner relative to the rotor carrier 30, the rotor carrier 30 being supported on a section of the housing part 31 in such a way that the rotor carrier 30 is rotationally movable relative to the housing part 32. The plug-in module 40 with the separating clutch 50 and the partial

clutch devices

70, 80 is moved into the rotor carrier 30, so that the intermediate shaft 32 of the plug-in module 40, which is coupled or connected to the input side of the separating clutch 50, is coupled or connected in a rotationally fixed manner to the output shaft of the internal combustion engine. The sheet carrier 90 is connected to the rotor carrier 30 in a torque-transmitting manner.

As can be further seen from fig. 1, the hybrid module 10 comprises a spacer element 150, also denoted as spacer, radially between the housing part 31 and the rotor carrier 30, which extends regionally coaxially to the housing part 31. The spacer element 150 rests with its radial inner side 151 on the radial outer side of the housing part 31 and is supported radially there. The spacer element 150 blocks the axial movement of the rolling bearing 140, which is also arranged between the rotor carrier 30 and the housing part 31 and is axially supported on a shoulder of the housing part 1 on the side opposite the spacer element 150. On the side axially opposite the rolling bearing 140, a fastening element 170, which is designed here in the form of a special nut, bears against the spacer element 150. The internal thread 171 of this special nut is on the external thread 172 of the housing part 31. The fixing element 170 or the special nut has circumferentially distributed fitting holes 163 into which special tools can be inserted in order to be able to twist the fixing element and thus to move it axially, thus enabling the distance between the fixing element 170 and the rolling bearing 140 to be adjusted. Accordingly, an axial pretension can be generated in the spacer element 150, so that the spacer element 150 is pressed axially like a spring against the rolling bearing 140 and against the fastening element 170. This ensures the axial position of the rolling bearing 140.

Between the spacer element 150 and the rotor carrier 30, a further rotary bearing 160 is arranged, which in the embodiment shown here is a needle bearing. The rotary bearing 160 is therefore used for further radial support of the rotor carrier 30 on the housing part 31, namely by: radial forces are introduced into the rotary bearing 160 and from there on the spacer elements 150 which are radially supported on the housing part 31.

In the embodiment shown here, however, this is not the only function of the spacer element 150, which also serves to supply or regulate the lubricant volume flow into the space radially enclosed by the plug-in module 40, in which the

clutch device

50, 70, 80 is located. For this purpose, the spacer element comprises a through opening 180 which is part of a flow path 181 for the lubricant. The through opening 180 is aligned in the radial direction with a through hole 190 in the housing part 31 arranged on the radially outer side of the spacer element 150 and with a through hole 191 in the rotor carrier 30 arranged on the radially inner side of the spacer element 150, wherein these two through

holes

190, 191 also form part of the flow path 181. By dimensioning the through-going opening 180 and the positioning of the spacer element 150, the net width of the flow path 181 and thus the volume flow of lubricant to be supplied can be adjusted.

Each of the

clutch devices

70, 80 arranged axially adjacent to one another is assigned a

pressure element

85, 86. The pressure element 75 of the first clutch device 70 is axially supported directly or in close proximity on the plate package 71 of the first sub-clutch device 70.

The pressure element 85 of the second sub-clutch device 80 is indirectly supported on the sheet package 81 of the second sub-clutch device 80, i.e. here by an axially acting actuating element 83 which is guided by the sheets of the sheet package of the first sub-clutch device 70.

Furthermore, a

disk spring

76, 86 is associated with each of the two

sub-clutch devices

70, 80. These coil springs 76, 86 are supported with their respective radially outer edges 200 on the inner side 96 of the second hollow cylinder 95 of the sheet carrier 90. For this purpose, the sheet carrier 90 has stepped elements 97 at these locations.

The radially inner edge 201 of the

respective disc spring

76, 86 acts axially with respect to the

respective pressure element

75, 85. The

respective pressure element

75, 85 is mechanically connected axially to the

respective actuating system

72, 82 of the two

sub-clutch devices

70, 80.

When operating such an

operating system

20, 82, forces are transmitted axially to the

respective pressure element

75, 85, which transmits the axial forces directly or indirectly to the respective plate pack 71, 81. In this way the plates of the plate sets 71, 81 are pressed against each other and can transmit torque with the respective

sub-clutch device

70, 80. If the

sub-clutch devices

70, 80 should be disconnected again, the operation of the

respective operating systems

72, 82 is ended. The

respective disk spring

76, 86 now causes an axial return movement of the

respective pressure element

75, 85, so that the sheets of the sheet packs 71, 81 can be separated from one another.

Fig. 2 shows the sheet carrier 90 as a one-piece member. In particular, a driver 100 is visible, which is arranged on the outer side 94 of the first hollow cylinder 93 and also on the inner side 96 of the second hollow cylinder 95. The two hollow cylinders 93, 95b are mechanically connected at the end by a connecting element 110.

However, the sheet carrier 90 can also be configured as a two-part component, as can be seen in fig. 3 and 4. In the case of a two-part component, the parting line of the two individual parts is provided as a mechanical connection 132 adjacent to the separating clutch 50 as a mechanical connection 132 between the inner part 130 and the outer part 131, as is shown in fig. 3. The parting line or mechanical joint 132 can be, for example, a welded joint.

Fig. 4 shows a further alternative to the structural configuration of the patch carrier 90, in which the inner part 130 and the outer part 131 of the patch carrier 90 axially overlap one another and are fixed to one another with screw connections as mechanical connections 132 or with one or more welded connections.

Different configurations of the coil springs 76, 86 supported on the sheet carrier 90 are shown in fig. 5, 6 and 7.

As can be seen from the three figures, the axial opening 87 in the axially acting actuating element 83 of the second sub-clutch device 80 has a greater radial extent or a greater diameter than the outer diameter of the two disk springs 76, 86. This makes it possible to subsequently install the disk springs 76, 86 into the sheet carrier 90 in the already assembled axially acting actuating element 83.

Fig. 5 shows that the disk springs 76 of the first sub-clutch device and the disk springs 86 of the second sub-clutch device 80 each bear against a stepped element 97 of the plate carrier 90 or against an inner side 96 of a second hollow cylinder 95 of the plate carrier and are axially supported there.

Fig. 6 shows an alternative embodiment in which the disk spring 86 is still supported only axially on the stepped element 97, whereas the disk spring 76 is supported on a carrier ring 98, which in turn is supported axially on the stepped element 97.

The embodiment according to fig. 7 differs from the embodiment shown in fig. 6 in that instead of the carrier ring 98 a securing ring 99 is arranged, on which a radially outer edge 200 of the disk spring 76 is axially supported.

A part of a hybrid module according to the invention is shown in fig. 8 and 9, respectively, wherein fig. 9 shows the relevant area to a greater extent.

It can be seen here that in the axial end region 300 of the chip carrier 90, the chip carrier has form elements 301, so-called fingers, which project radially outwards from its second hollow cylinder 95. The radially outwardly projecting shape elements 301 pass through the rotor carrier 30 in the radial direction, i.e. through recesses 303, which are arranged for this purpose in the rotor carrier 30, in particular in the shape of slots. In the embodiment shown here, these recesses 303 are machined into the end face 304 of the rotor carrier 30. This makes it possible to transmit torque between the rotor carrier 30 and the chip carrier 90 or the plug-in module 40 embodied in this way in a simple and space-saving manner.

For the purpose of ensuring the axial position of the chip carrier 90 relative to the rotor carrier 30, a securing element 305 is arranged radially inside the rotor carrier 30, which securing element is radially embedded in the rotor carrier 30 and blocks the axial movement of the chip carrier 90 and thus of the plug-in module 40 by axially abutting against the chip carrier 90.

In the embodiment shown here, the securing element is not yet the only element that blocks the axial displacement, but a further element is arranged on the first hollow cylinder 93 of the disk carrier 90 between its radial inside and the rotor carrier 30 for blocking the freedom of translation of the disk carrier 90, here the spring ring 306, which is arranged in the recess 309 of the rotor carrier 30.

As a further component, a mating pin 307 is provided for the form-locking transmission of torque between the rotor carrier 30 and the sheet carrier 90, which is inserted in the end-side connecting element 110 of the sheet carrier 90 and in the rotor carrier 30.

For the purpose of a structurally simple actuation of the illustrated separating clutch 50, at least one passage opening 308, preferably a plurality of such passage openings 308, is provided in the rotor carrier 30 and in the end-side connecting element 110, through which a clutch actuating element 310 is guided for applying an actuating force to the plates of the separating clutch 50.

Fig. 10 shows a further detail of the hybrid module according to the invention, i.e. here in particular the separating clutch 50, which is also arranged inside the plate carrier 90. It can be seen that the plate carrier 90 rests with its radially inner boundary against the rotor carrier 30. In order to ensure the axial position of the sheet carrier 90 or of the plug-in module 40 provided therewith in relation to the rotor carrier 30, a blocking element, here in the form of the illustrated spring ring 306, is arranged between the rotor carrier 30 and the sheet carrier 90.

In the illustrated position of the spring ring 306 (in which it has a larger diameter than the rotor carrier 30), the spring ring 306 is present in an unstressed manner and extends into the contour illustrated in dashed lines. After the spring ring 306 is mounted on the rotor carrier 30 and before the sheet carrier 90 or the plug-in module 40 provided therewith is axially moved into the rotor carrier 30, the spring ring 306 therefore exhibits an axial stop against the movement travel.

To achieve this, axially extending through openings 400 are formed in both

inner plate carriers

74, 84 of the first partial clutch device 70 and the second partial clutch device 80. Furthermore, such a through-opening 400 is also formed in the outer plate carrier 54 of the separating clutch 50. The through openings 400 are arranged such that they can be axially aligned with each other, as shown in fig. 10. This enables the tool 401 to be moved into the penetration opening 400. With this tool, the radially projecting spring ring 306 can be moved into the rotor carrier 30, so that the sheet carrier 90 can be moved into the rotor carrier 30 without hindrance.

Preferably, a plurality of uniformly distributed through-openings 400 are present in the inner or outer sheet carrier, which enables a plurality of tools 401 to be inserted axially at the same time.

A further aid is produced by having at least regionally obliquely extending sections 403 on the sheet carrier 90 when the sheet carrier 90 is moved into the rotor carrier 30. This section 403 is arranged between the first hollow cylinder 93 in the interior of the tablet carrier 90 and the end-side connecting element 110 running essentially perpendicularly thereto. When the sheet metal carrier 90 is moved into the rotor carrier, this inclined region or the rounding provided there on the sheet metal carrier 90 causes a wedge effect on the radially projecting spring ring 306, so that it is pressed away axially inward in the insertion movement of the sheet metal carrier 90 into the rotor carrier 30.

The clutch device proposed here and the hybrid module equipped therewith provide a unit which can be produced cost-effectively and can be assembled in a simple and manual and automated manner with small tolerances.

List of reference numerals

1 axis of rotation

10 hybrid module

11 input side of hybrid module

12 output side of hybrid module

20 electric machine

21 stator

22 rotor

30 rotor carrier

31 housing part

32 intermediate shaft

40 plug-in module

50 disconnect clutch

51 disconnect clutch plate pack

52 operating system for a disconnect clutch

53 opposite pressure plate of separation clutch

54 outer plate carrier of a disconnect clutch

60 double clutch device

70 first sub-clutch device

71 sheet set of first sub-clutch device

72 operating system of first sub-clutch device

73 counter pressure plate of first sub-clutch device

74 inner plate carrier of first sub-clutch device

75 pressure element of the first sub-clutch device

76 disc spring of first sub-clutch device

80 second sub-clutch device

81 sheet set of second sub-clutch device

82 operating system of second sub-clutch device

83 operating element acting axially

84 inner plate carrier of second sub-clutch device

85 pressure element of the second sub-clutch device

86 coil spring of second sub-clutch device

87 axial opening

90-piece carrier

91 annular column space

93 a first hollow cylinder

94 outside of the first hollow cylinder

95 second hollow column

Inside of 96 second hollow cylinder

97 stepped element

98 seat ring

99 safety ring

100 driving device

101 supporting element

110 end-side connecting element

120 torque transmitting element

130 inner part

131 outer part

132 mechanical connection

140 rolling bearing

150 spacer element

151 radially inside

160 swivel bearing

170 fixing element

171 internal thread

172 external thread

173 mating hole

180 through opening

181 flow path

190 perforations in housing components

191 through the rotor carrier

200 radially outer edge

201 radially inner edge

300 axial end region

301 radially outwardly projecting shape element

302 end region

303 hollow

304 end side

305 fuse element

306 spring ring

307 mating pins

308 threading opening

309 groove

310 clutch operating element

400 penetration opening

401 tool

402 recessed portion

403 has at least in regions a section running obliquely.

Claims

1. Hybrid module (10) for a motor vehicle for coupling an internal combustion engine and a transmission, comprising at least two clutch devices (70, 80) and comprising an electric machine (20), the rotor (22) of which is connected in a rotationally fixed manner to a rotor carrier (30), wherein the rotor carrier (30) is coupled in a rotationally fixed manner to a plate carrier (90) of the two clutch devices (70, 80) in such a way that a torque applied by the rotor (22) of the electric machine (20) can be transmitted to the plate carrier (90), wherein the two clutch devices (70, 80) each have at least one plate pack (71, 81) which is arranged axially next to one another and which carries the plates of the two groups of clutch devices (70, 81) for the frictional transmission of a torque, wherein at least one plate is connected in a rotationally fixed manner to a driving means (100) of the plate carrier (90) ) Wherein the clutch devices (70, 80) further have pressure elements (75, 85) and disk springs (76, 86), the disk springs of the two clutch devices being axially supported with their radially outer edges (200) on the common plate carrier (90) and with their radially inner edges (201) on the respective pressure elements (75, 85).

2. Hybrid module according to claim 1, characterized in that the disc springs (76, 86) are fixed in their angular position around the axis of rotation (1) of the clutch device (70, 80).

3. Hybrid module according to claim 1, characterized in that the outer diameter of the disk spring (76, 86) is smaller than the smallest radial extension of an axial opening (87) in a pressure element (85) embodied as a pressure tank.

4. Hybrid module according to claim 1, wherein an operating system (72, 82) is assigned to each of the two clutch devices (70, 80) arranged next to one another, and the respective pressure element (75, 85) is axially supported on the respective operating system (72, 82).

5. Hybrid module according to one of claims 1 to 4, characterized in that, when the sheet packs (71, 81) of one clutch device (70, 80) are axially pressed together, the respective disc spring (76, 86) is arranged and constructed such that the operational feasibility of a clutch device (70, 80) arranged axially beside the one clutch device is obtained without restrictions.

6. Hybrid module according to any one of claims 1 to 4, characterized in that the two coil springs (76, 86) have an outer diameter of different size, in the region of which they are axially fixed on the sheet carrier (90).

7. Hybrid module according to one of claims 1 to 4, characterized in that the hybrid module also has a plug-in module (40) having a rotationally symmetrical patch carrier (90), wherein the patch carrier (90) has the shape of a hollow annular cylinder consisting of two rotationally symmetrically arranged hollow cylinders (93, 95), and in the space radially separated by the patch carrier (90) a driver device (100) is arranged on at least one of the radially spaced and mutually facing inner sides of the hollow annular cylinder, wherein the patch groups (51, 81) of the two clutch devices (50, 80) are arranged radially offset from one another, and the driver device (100) is arranged in the space radially separated by the patch carrier (90) on both hollow cylinders (93, 93) of the hollow annular cylinder, 95) On sides (94, 96) spaced radially apart and facing each other for connection with at least one plate of the plate pack (51, 81).

8. Hybrid module according to claim 7, characterized in that a further clutch device (70) is arranged axially next to one of the two radially offset clutch devices (50, 80), which further clutch device also has at least one web arranged on a driver device (100) on the inner side (96) of the hollow cylinder (95), on which driver device at least one web of a web group (81) of axially adjacent clutch devices (80) is also arranged, wherein each of the two axially adjacent clutch devices (70, 80) is assigned a pressure element (75, 85) and a disc spring (76, 86) which is supported with its radially outer edge (200) on the web carrier (90) and with its radially inner edge (201) on the pressure element (75, 86), 85) So that the two disc springs (76, 86) are arranged axially side by side.

9. Hybrid module according to one of claims 1 to 4, characterized in that the driver means (100) are provided as a toothing and the pressure element is a pressure tank.

10. A drive train for a motor vehicle with an internal combustion engine and a hybrid module (10) according to one of claims 1 to 9 and a transmission, wherein the hybrid module (10) can be or has been mechanically connected with the internal combustion engine and the transmission by means of a clutch device of a plug-in module (40) in the hybrid module (10).