Clutch device

Abstract

A clutch device includes an outer disk carrier, outer disks, an inner disk carrier, inner disks, and at least one lug. The outer disk carrier has first axially running grooves, a first edge, and a first edge side. Each of the outer disks has radial projections spaced apart by depressions and projecting into the first axially running grooves. The inner disk carrier has second axially running grooves, a second edge, and a second edge side. Each of the inner disks has radial projections spaced apart by depressions and projecting into the second axially running grooves. The lug is arranged between two grooves of the first axially running grooves and extending axially from the first edge side, or arranged between two grooves of the second axially running grooves and extending axially from the second edge side.

Claims

1. A clutch device comprising: an outer disk carrier comprising a first plurality of axially running grooves and a first radially inwardly extending tooth disposed between two circumferentially adjacent grooves of the first plurality of axially running grooves; a plurality of outer disks, each including a first plurality of radial projections spaced apart from one another by depressions and projecting into the first plurality of axially running grooves; an inner disk carrier comprising a second plurality of axially running grooves and a second radially inwardly extending tooth disposed between two circumferentially adjacent grooves of the second plurality of axially running grooves; a plurality of inner disks, each including a second plurality of radial projections spaced apart from one another by depressions and projecting into the second plurality of axially running grooves; and, at least one lug: arranged between the two circumferentially adjacent grooves of the first plurality of axially running grooves, spanning an entirety of a circumferential width between the two circumferentially adjacent grooves of the first plurality of axially running grooves, including tapered edges and a rounded distal end, and extending axially from the first radially inwardly extending tooth; or, arranged between the two circumferentially adjacent grooves of the second plurality of axially running grooves, spanning an entirety of a circumferential width between the two circumferentially adjacent grooves of the second plurality of axially running grooves, including tapered edges and a rounded distal end, and extending axially from the second radially inwardly extending tooth.

2. The clutch device of claim 1 wherein the at least one lug is a plurality of lugs arranged around a circumference of the outer disk carrier or the inner disk carrier.

3. The clutch device of claim 2, wherein the plurality of lugs are distributed equidistantly around the circumference.

4. The clutch device of claim 1, wherein the at least one lug is a plurality of lugs extending axially from: respective first radially inwardly extending teeth disposed between all circumferentially adjacent grooves of the outer disk carrier; or respective second radially inwardly extending teeth disposed between all circumferentially adjacent grooves of the inner disk carrier.

5. The clutch device of claim 1, wherein the at least one lug includes first and second sides with respective oblique surfaces.

6. The clutch device of claim 1 wherein the clutch device is a dual clutch having two partial clutches.

7. A method for mounting an outer plate on an outer disk carrier or an inner plate on an inner disk carrier of a clutch device, comprising: providing: outer lamellae with projections and recesses on an outer circumference; or, inner lamellae with projections and recesses on an inner circumference; providing: an outer disk carrier comprising a first edge side, a plurality of grooves that open at the first edge side, a plurality of radially inwardly extending teeth disposed between respective pairs of circumferentially adjacent grooves of the plurality of grooves, and at least one axially extending lug extending from a one of the plurality of radially inwardly extending teeth, the at least one axially extending lug spanning an entirety of a circumferential width between a pair of circumferentially adjacent grooves and including tapered edges and a rounded distal end; or, an inner disk carrier comprising a second edge side, a plurality of grooves that open at the second edge side, a plurality of radially inwardly extending teeth disposed between respective pairs of circumferentially adjacent grooves of the plurality of grooves, and at least one axially extending lug extending from a one of the plurality of radially inwardly extending teeth, the at least one axially extending lug spanning an entirety of a circumferential width between a pair of circumferentially adjacent grooves and including tapered edges and a rounded distal end, wherein the at least one axially extending lug is for aligning the outer lamellae or the inner lamellae relative to the outer disk carrier or the inner disk carrier, respectively; installing the outer lamellae or the inner lamellae on the at least one axially extending lug such that the lug is arranged between two adjacent projections of the outer lamellae or the inner lamellae; and, installing the projections into the plurality of grooves.

8. The method of claim 7, wherein: the at least one axially extending lug is a plurality of axially extending lugs; and, a lug of the plurality of axially extending lugs is arranged between all adjacent grooves of the outer disk carrier or the inner disk carrier.

9. The method of claim 7 wherein the at least one axially extending lug includes first and second sides with respective oblique faces.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The disclosure is explained below on the basis of exemplary embodiments with reference to the drawings. The drawings are schematic illustrations and show:

(2) FIG. 1 is a schematic representation in the form of a sectional view of the essential components of a clutch device according to the invention,

(3) FIG. 2 is a perspective view in the form of a schematic representation of an outer disk carrier,

(4) FIG. 3 is a top view of an outer plate to be inserted into the outer disk carrier of FIG. 2,

(5) FIG. 4 shows a partial view of the outer disk carrier and of the outer disk with the carrier-side lug inserted into the plate-side recess, and

(6) FIG. 5 shows a plan view of the arrangement of FIG. 4.

DETAILED DESCRIPTION

(7) FIG. 1 shows, in the form of a sectional schematic view, a clutch device 1 according to the disclosure, here, by way of example, in the form of a wet-running dual clutch. The disclosure is purely by way of example and in no way restrictive, neither with regard to the type of the coupling device nor with regard to the structure. Instead of a double clutch, the clutch device could be a single clutch. The radially constructed dual clutch can also be constructed in an axial manner.

(8) The clutch device 1 shown here has two partial clutches 2 and 3 arranged radially with respect to one another. Each partial clutch comprises a disk set 4, 5, wherein each disk set 4, 5 has outer disks 6, 7, which are arranged in an axially displaceable manner on a respective outer disk carrier 8, 9, and inner plates 10, 11, which are arranged in an axially displaceable manner on a respective inner disk carrier 12, 13.

(9) For example, the outer plates 6, 7 are steel plates, while the inner plates 10, 11 are friction plates having a friction lining.

(10) Each plate stack can be axially pushed together via an actuating element, here in the form of a respective pressure pot 14, 15, are in such a way that the outer plates 6, 7 and the inner plates 10, 11 are in frictional engagement with one another and the respective partial clutch 2, 3 is closed. In this way, a torque can be transmitted from the respective outer disk carrier 8, 9 to the inner disk carrier 12, 13. The outer disk carriers 8, 9 are connected to a common input shaft, while the respective inner disk carriers 12, 13 are each connected to a separate output shaft.

(11) The structure of such a coupling device is sufficiently known and does not require any further explanation.

(12) FIG. 2 shows, by way of example, an outer plate carrier. Here, the outer disk carrier 8 is shown. In a similar manner, the outer disk carrier 9 is constructed to be slightly smaller around the circumference.

(13) The outer disk carrier 8 has a substantially cylindrical section 16 on which a plurality of axially running grooves 17 are formed, between which project radially inwardly extending elevations 18 forming a type of toothing. Between two grooves, which open out at the edge 19 of the outer disk carrier 8, an axially extending lug 20 is formed on the edge of an elevation 18 or tooth, which serves as an insertion and centering element for threading in an outer plate 10. Said lug 20 is preferably formed in one piece with the outer shell insert 8, which is a sheet metal forming component, and is therefore formed in the course of the punching and shaping operation of the outer plate carrier 8.

(14) FIG. 3 shows a plan view of an outer plate 6, which is of annular design and has a plurality of radially projecting projections 21 on its outer circumference, between which recesses are provided in each case. Thus, a complementary tooth system is formed. On the fully configured clutch device 1, the projections 21 of the outer disk 6 engage in the grooves 17 of the outer disk carrier 8, while the elevations 18 of the outer disk carrier lie in the depressions 22 of the outer lamellae 6. Thus, an engagement of the radial outer toothing of the outer plate 6 into the radial inner toothing of the outer disk carrier 8 is provided.

(15) In order to be able to align the respective outer plate 6 exactly with respect to the outer disk carrier 8 in a simple manner within the scope of fitting, so that the projections 21 can consequently be positioned axially and in the circumferential direction exactly relative to the grooves 17 and the outer plate 6 can be pushed into the outer plate carrier 8 in a simple manner, the lug 20 is initially introduced into a recess 22 of the outer plate 6 in a simple manner during assembly, as shown in FIG. 4. With this introduction, a type of centering is provided, that is to say, at least in this region, the outer plate 6 is positioned correctly with respect to the outer disk carrier 8. It is then merely necessary to align the outer plate 6 with respect to the central axis of the outer disk carrier 8 by slight pivoting. If this is done, all the projections 21 are positioned exactly in the axial and circumferential direction relative to the grooves 17.

(16) The outer lamella 6 can then be inserted into the outer lamellae of the carrier 8 in a simple manner, and the toothings engage with one another.

(17) Of course, although not shown in greater detail here, the respective inner lamellar carrier 12, 13 can also be provided with such a lug 20. The inner plates 10, 11 have the corresponding toothing, that is to say the projections and depressions, on the inner circumference, while the grooves into which the projections provided on the inner circumference engage are provided on the inner disk carrier 12, 13 on the outside. Here, too, the fitting is very simple if such an axially projecting lug 20 is formed on the inner disk carrier 12, 13.

(18) Although only one lug 20 is provided in the exemplary embodiment shown, it is of course conceivable, to form further lugs 20 which may be distributed equidistantly around the circumference. For example, a second lug 20 can be provided at a position opposite to 180, or three lugs which are offset by 120 and are likewise used as threading and centering elements.

(19) In principle, it is conceivable to provide an axially projecting lug 20 in the region of each elevation.

(20) As FIGS. 4 and 5 show, the lug 20 is rounded, i.e., it is quasi wave-shaped and runs continuously into and out of the edge of the edge. The round side faces form guide surfaces for the respectively adjacent projection 21 of the outer plate 6, so that the latter slides into the respective groove during fitting.

REFERENCE SYMBOLS

(21) 1 Clutch device

(22) 2 Partial clutch

(23) 3 Partial clutch

(24) 4 Disk set

(25) 5 Disk set

(26) 6 Outer plate

(27) 7 Outer plate

(28) 8 Outer disk carrier

(29) 9 Outer disk carrier

(30) 10 Inner plate

(31) 11 Inner plate

(32) 12 Inner disk carrier

(33) 13 Inner disk carrier

(34) 14 Pressure pot

(35) 15 Pressure pot

(36) 16 Cylindrical section

(37) 17 Groove

(38) 18 Elevation

(39) 19 Rim

(40) 20 Lug

(41) 21 Projection

(42) 22 Recess