DE102015007688A1 - gear coupling - Google Patents

Abstract

The invention relates to a toothed coupling (30) with two toothed coupling halves (27, 28) in communication, each of the toothed coupling halves (27, 28) having at least one external toothing part (3, 4) and an internal toothing part (5, 6) each toothed coupling half (27, 28) form a cambered driving connection (13, 14), wherein the driving connection (13, 14) at least one elastic sealing element (18, 47) is associated. It is an improved damping, electrical insulation and a modifiable stiffness within the gear coupling (30) can be achieved. In this case, at least one region (56) in which the toothed coupling halves (27, 28) are in communication and / or in at least one region of the internal toothing part (5, 6) and / or the external toothing part (3, 4) is at least one elastic element (35) arranged.

Description

The invention relates to a toothed coupling with two toothed coupling halves in communication, wherein each of the toothed coupling halves has at least one external toothing part and one internal toothing part which form a convex driving connection in the respective toothed coupling half, wherein the entrainment connection is assigned at least one elastic sealing element.

With an increasing desire for ever more compact design of drive systems while increasing the power density gain gear couplings increasingly important. You are able to compensate for positive transmission of torque and rotary motion comparatively large angular displacements and axial and radial displacements. Ever-increasing performance requirements of propulsion systems such as wind turbines, rolling mill drives, and railroads (road and suburban trains, high-speed trains) require gear couplings as a machine element with the highest power density.

In the publication DE 196 44 884 C1 is a gear coupling 1 with two gear coupling halves 27 . 28 described in which the two gear coupling halves 27 . 28 directly with each other by means of fitting screws 23 are firmly screwed. In 1 is such a bolted double-toothed coupling 1 indicated, in which the two toothed coupling halves 27 . 28 essentially each a clutch housing 2 with two coupling housing parts 5 . 6 as two sleeves and two inside the coupling housing 2 arranged coupling parts 3 . 4 as hubs, with the coupling parts 3 . 4 inside the clutch housing 2 in each case a coupling part inner region 17 . 65 pretend between which a flange area 56 is available. The coupling housing 2 expediently consists of the largely symmetrical coupling housing parts 5 . 6 the by means of the fitting screws 23 at the on the clutch housing parts 5 . 6 existing, mutually facing flanges 42 . 43 are screwed together and each one radially directed, the coupling part inner areas 17 . 65 sealing inner lid 45 . 46 contain. The coupling parts 3 . 4 have on their outer peripheral area 7 external gears 9 . 10 with domed clutch teeth. The coupling housing 2 indicates at its inner circumference 8th internal gears 11 . 12 on. The external gears 9 . 10 the coupling parts 3 . 4 and the internal gears 11 . 12 of the coupling housing 2 form in the clutch housing parts 5 . 6 one each from an elastic sealing element 18 . 47 sealed and protected, cambered driving toothing 13 . 14 in which corresponding to a relative movement between the coupling parts 3 . 4 and the clutch housing parts 5 . 6 to each other, the internal teeth 11 . 12 and the external teeth 9 . 10 are also movable relative to each other. The relative movement is caused by axial and / or angular deflections of the coupling parts 3 . 4 to the clutch housing parts 5 . 6 ,

On each inner side 19 . 20 between the clutch housing 2 and the coupling part 3 . 4 is in each case an annular disc-shaped, the driving teeth 13 . 14 and the associated coupling part inner regions 17 . 65 protective lid 45 . 46 intended. The clutch housing axis is denoted by the reference numeral 59 specified.

Between the clutch housing 2 or the clutch housing parts 5 . 6 and each coupling part 3 . 4 can one on the two coupling parts 3 and 5 and coupling housing parts 4 and 6 fixed, axially directed corrugated tube 18 . 47 be arranged as an elastic sealing element, both the associated cambered driving teeth 13 . 14 seals as well as a predetermined position of the clutch housing 2 resiliently adjusted. Instead of the corrugated pipes 18 . 47 can also other elastic sealing elements for sealing the driving connection 13 . 14 be introduced.

By the in 2 illustrated deflection of the coupling parts 3 . 4 (Hubs) to each other creates a relative movement to the clutch housing parts (sleeves) 5 . 6 , which by a deflection displacement angle δ between the coupling part rotation axes 15 . 16 and the clutch housing rotational axis 59 is shown. In addition, an axial and a radial displacement compensation is possible. The stiffness is due to the use of metallic material. Damping properties in the conventional gear couplings are as good as not available.

In general, gear couplings largely consist of metallic materials. These have due to the material thus a high torsional stiffness and a very low damping capacity between the drive facing the gear coupling half and the output facing the gear coupling half. The high stiffnesses and low damping characteristics can have a negative effect on the vibration behavior of the overall transmission in certain drive configurations. There is in particularly sensitive drives, the requirement for adjustment of stiffness for targeted adjustment of the natural frequencies of the drive, the original installation space of the clutch must remain within the drive system, ie that in many cases a high power density is required. The use of purely elastic couplings, z. B. Keilpaketkupplungen or linkages, is not possible because the elastic coupling plane due to the material used and the required displacement capability has a significantly lower power density and thus must be made larger in order to transmit the required torque and compensate for the displacements occurring. A disadvantage is also that the toothed couplings have no electrically insulating properties between the toothed coupling halves of the drive and the output. There is thus in further development of the entire coupling technology many times the demand for electrical insulation effect of couplings.

In the publication WO 2013/041082 is described an elastic one-piece wedge pack ring. The in 3 shown wedge package ring 40 comprises at least a plurality of ring-circumferentially arranged, wedge-shaped metallic fastening elements directed towards its ring axis 21 and 22 each with a radially directed to the ring axis through hole 24 . 25 , where the through holes 24 . 25 for at least one radially directed, from the outer ring area 37 to the inner ring area 36 Directional executable screw for fastening the fasteners 21 . 22 are provided on two adapted coupling parts, wherein between the ring encircling adjacent arranged fasteners 21 and 22 in each case an elastic, rubber-like vulcanized spring element 41 , Which is present on the adjacent wedge-shaped metal fasteners 21 and 22 is vulcanized in a vulcanizing process, so that a ring encircling alternately arrangement of the metallic wedge-shaped fastening elements 21 and 22 and the alternately introduced elastic spring elements 41 a wedge pack ring produced in a vulcanization process 40 formed.

The invention has for its object to provide a toothed coupling, which is designed so that occurring displacements largely balanced, the coupling stiffness significantly reduced, damped vibrations and electrical insulation can be achieved.

The object is solved by the features of patent claim 1. In the toothed coupling with two toothed coupling halves in communication, each of the toothed coupling halves has at least one outer toothed part and one inner toothed part which form a convex driving connection in the respective toothed coupling half, wherein the entrainment connection is assigned at least one elastic sealing element,
wherein according to the characterizing part of patent claim 1
at least one region in which the toothed coupling halves are in communication, and / or at least one elastic element is arranged in at least one region of the internal toothing part and / or the outer toothing part of at least one toothed coupling half.

Depending on the design of the toothed coupling and the type of arrangement of the elastic element, the elastic element can be designed either disk-shaped, annular, cylindrical or wedge-shaped.

The internal teeth parts generally constitute internally toothed coupling parts and the external tooth parts represent externally toothed coupling parts.

In a gear coupling, the internal gear parts associated with the gear coupling halves may be formed as sleeves and the associated outer gear parts as hubs, wherein the elastic element is in the connecting region with the first internal gear part of the first gear coupling half and with the second internal gear part of the second gear coupling half.

In a further toothed coupling, the toothed coupling halves associated with the inner toothing parts each connected to a non-toothed hub part, having an inner toothed sleeve and the associated outer toothing parts each having outer teeth exhibiting Nabenteil be formed, wherein the elastic element in the connecting region with the first outer toothing part of the first toothed coupling half and with the second outer toothing part of the second toothed coupling half is in communication.

The elastic element may be annular and arranged between the sleeve and the tooth-free hub part.

• – zwischen dem ersten Innenverzahnungsteil der ersten Zahnkupplungshälfte und dem zweiten Innenverzahnungsteil der zweiten Zahnkupplungshälfte oder
• – zwischen dem ersten Außenverzahnungsteil der ersten Zahnkupplungshälfte und dem zweiten Außenverzahnungsteil der zweiten Zahnkupplungshälfte oder
• – zwischen dem ersten Innenverzahnungsteil der ersten Zahnkupplungshälfte und dem zweiten Außenverzahnungsteil der zweiten Zahnkupplungshälfte oder
• – zwischen dem zweiten Innenverzahnungsteil der zweiten Zahnkupplungshälfte und dem ersten Außenverzahnungsteil der ersten Zahnkupplungshälfte.

The elastic element may be present at the following positions of external teeth parts and internal teeth parts of the toothed coupling halves:

• Between the first inner toothing part of the first toothed coupling half and the second inner toothing part of the second toothed coupling half or
• Between the first outer toothing part of the first toothed coupling half and the second outer toothing part of the second toothed coupling half or
• Between the first inner toothing part of the first toothed coupling half and the second outer toothing part of the second toothed coupling half or
• Between the second internal gear part of the second gear coupling half and the first outside gear part of the first gear coupling half.

• – als Teil eines Innenverzahnungsteils einer der Zahnkupplungshälften und/oder
• – als Teil eines Außenverzahnungsteils einer der Zahnkupplungshälften.

The elastic element may be incorporated at the following other positions of internal gear parts and outer gear parts of the gear coupling halves, at least

• - As part of an internal gear part of the toothed coupling halves and / or
• - As part of an external toothing part of the toothed coupling halves.

The elastic element can be assigned at least two metallic side elements for mounting, wherein the elastic element between the two side elements, integrally forming an elastic composite element, on / vulcanized.

The elastic composite containing the elastic member may also be secured between opposite inner sides of the gear coupling halves and form an elastic connection between the two gear coupling halves.

In disc-like design of the elastic composite element with double-sided disc-like side elements threaded holes can be introduced to the two-sided side elements, the threaded holes are provided for the screw connections of the elastic composite element on the inside, opposite flanges of the toothed coupling halves.

The elastic element can be vulcanized directly onto the inner toothing part and fixedly connected to the second flange of the second toothed coupling half via the associated first flange of the first toothed coupling half.

The elastic composite element can be arranged in the axial direction as a rubber bushing with the embedded vulcanized elastic element between the two interconnected toothed coupling halves of the coupling housing, wherein the elastic element between the adjacent axially directed side elements in female form is vulcanized / vulcanized.

As elastic composite element but can also be a coupling with a wedge ring with interchangeable fasteners and located between the adjacent fasteners, designed as spring elements elastic elements between the two toothed coupling halves be introduced.

The associated elastic elements may be vulcanized between the adjacent fastening elements.

The wedge packs, which are biased by press-fitting between the fastening elements formed on the connection contour, can form a closed ring.

The wedge-pack ring designed as an elastic composite element can thus be designed either as a closed ring or as a segmented assembled ring.

The internal teeth parts of the toothed coupling halves can be fixedly connected to the fastening elements of the wedge coupling ring in the change of the fastening elements in the radial screw connection to the tooth coupling axis.

The elastic composite element may have at least at least one associated bearing point in relation to the internal toothing parts, wherein the bearing points are designed as plain bearings or roller bearings.

At least one axial sliding bearing can be inserted between a bolted retaining ring associated with the internal toothing part of a toothed coupling half and the inner toothing part associated with an inner cover on the inner toothing part of a toothed coupling half.

At least one radial plain bearing may be interposed between the annular bushing assigned to each of the one toothed coupling half and the inner toothing part of the respective other toothed coupling half.

In the flange region of the inserted elastic composite element, at least one mechanical breakdown protection unit assigned to the elastic composite element can be arranged.

The breakdown protection unit may consist of a bolt and a counterpart matched to the bolt.

The entrainment compound associated elastic sealing element may be an elastic metallic corrugated tube or a rubber elastic element or a plastic elastic element.

The elastic element can be made electrically insulating.

The elastic element may consist of vulcanizable rubber.

The elastic element may be designed as a disk between two metallic disc-shaped side elements or as an axially extending cylindrical ring between two metallic axially extended side elements or as a wedge-shaped to Zahnkupplungsachse directed and shaped and between two formed as side elements adjacent fasteners tension-fitted, elastic, rubber-like vulcanized spring element.

Further developments and special embodiments of the gear coupling according to the invention are specified in subclaims.

The invention will be explained in more detail by means of exemplary embodiments with reference to several drawings.

Show it:

1 a schematic longitudinal sectional view of a conventional toothed coupling with each other directly to the inner sides of the respective clutch housing in a fixed connection toothed coupling halves in the static state of the prior art,

2 a schematic longitudinal sectional view of a conventional toothed coupling with each other directly to the inner sides of the respective clutch housing in a fixed connection toothed coupling halves in the dynamic state after 1 for the representation of occurring angular displacements, the axial displacement and the radial displacement according to the prior art,

3 a schematic perspective view of a wedge package ring according to the prior art,

4 a schematic longitudinal sectional view of a toothed coupling according to the invention with two associated toothed coupling halves and with a between the inner sides of the coupling housing of the respective toothed coupling halves and aligned in the radial direction, inserted elastic composite element,

4a a schematic longitudinal sectional view of the tooth coupling according to the invention similar to 4 with gear coupling halves in a fixed connection with each other directly on the inner sides of the respective coupling housing in the dynamic state for the representation of the angular displacement occurring,

5 an enlarged longitudinal sectional view of an elastic composite element according to the 4 with metallic side elements and an annular disk-like elastic element vulcanized on both sides,

6 a schematic representation in the semi-longitudinal section of a second toothed coupling according to the invention with two connected toothed coupling halves, wherein the elastic composite element is arranged in the axial direction as a rubber bushing with a located between the two respective coupling parts, vulcanized on both sides annular disc-like elastic element,

7 1 is a schematic representation in the half-longitudinal section of a third toothed coupling according to the invention with two toothed coupling halves communicating, wherein the elastic composite element is arranged in the radial direction as a wedge coupling ring between the two toothed couplings,

8th a schematic representation in the longitudinal half section of the toothed coupling with two in communication tooth coupling halves after 7 wherein the elastic composite element is arranged in the radial direction as a wedge coupling ring between the two toothed coupling halves, wherein between the first sleeve of the first gear coupling half associated retaining ring and the inside lid on the second gear coupling half associated second sleeve, an axial sliding bearing is inserted,

9 a schematic representation in the longitudinal half section of the toothed coupling with two in communication tooth coupling halves after 7 wherein the elastic composite element is arranged in the radial direction as a wedge coupling ring between the two toothed coupling halves, wherein between the first sleeve of the first gear coupling half associated retaining ring and the inside lid on the second gear coupling half associated second sleeve, a radial sliding bearing is inserted,

10 a schematic longitudinal sectional view of the first tooth coupling according to the invention with two connected toothed coupling halves and with an inserted between the inner sides of the coupling housing of the respective toothed coupling halves elastic composite element and multiple existing in the flange mechanical breakdown fuse units and

11 a schematic longitudinal sectional view of a toothed coupling with the elastic element containing, elastic composite element with internal teeth parts and external teeth forming driving connections.

The following are the 4 . 4a and the 7 considered together, initially a summary of all the essential features of the toothed couplings according to the invention is given. In 4 as the main reference figure is a schematic longitudinal sectional view of a first gear coupling 30 with two communicating toothed clutch halves 27 . 28 wherein each of the gear coupling halves 27 . 28 at least one outer toothing part 3 . 4 and an internal gear part 5 . 6 having, in the respective toothed coupling half 27 . 28 a coveted takeaway connection 13 . 14 form, wherein the driving connection 13 . 14 at least one elastic sealing element 18 . 47 assigned.

According to the invention is at least in one area 56 in which the gear coupling halves 27 . 28 according to 4 or according to the 7 . 8th . 9 inside the gear coupling 60 communicate, at least one elastic element 35 or a certain number of elastic elements 41 arranged in segmented form.

According to the invention can also with respect to a further toothed coupling 80 , as in 11 shown in at least one area 81 of the internal toothing part 71 . 73 and / or in a region of the external toothing part 70 . 72 at least one toothed coupling half 27 or 28 at least one elastic element 35 be arranged.

It is essential that in the gear couplings described in detail below 30 . 50 . 60 . 80 at least one elastic element 35 or 41 is present that the resulting vibrations in the gear couplings 30 . 50 . 60 . 80 largely dampens and modifies the coupling stiffness.

In the static, z. B. dormant state according to 4 are the first Zahnkupplungshälfteachse 15 and the second gear coupling half axis 16 in accordance with the gear coupling axis 59 , In 4a In contrast, in the dynamic state, the first toothed coupling half axis 15 and the second gear coupling half axis 16 not with the gear coupling axle 59 match.

The elastic element 35 . 41 may vary depending on the type of arrangement of the elastic element 35 . 41 be formed within the toothed coupling either disc-shaped, annular, cylindrical or wedge-shaped.

In the toothed couplings described in more detail below 30 . 50 are the gear coupling halves 27 . 28 associated internal gear parts 5 . 6 as sleeves and the associated external teeth parts 3 . 4 formed as hubs, wherein the elastic element 35 in the connecting area 56 with the first internal toothing part 5 the first toothed coupling half 27 and with the second internal gear part 6 the second toothed coupling half 28 communicates.

The internal teeth parts 5 . 6 generally provide internally toothed coupling parts and the external teeth parts 3 . 4 represent externally toothed coupling parts.

In another gear coupling 80 z. B. according to 11 connecting the gear coupling halves 27 . 28 associated internal gear parts 71 . 72 as in each case with a tooth-free hub part 76 . 77 connected, having an internal toothing sleeve 74 . 75 and the associated external teeth parts 70 . 72 are each formed as external teeth having hub part, wherein the elastic element 35 in the connecting area 56 with the first outer toothing part 70 the first toothed coupling half 27 and with the second outer teeth part 72 the second toothed coupling half 28 communicates. The elastic element 35 can also be ring-shaped and between sleeve 74 . 75 and the tooth-free hub part 76 . 77 in the area 81 be arranged.

• – zwischen dem ersten Innenverzahnungsteil 5; 71 der ersten Zahnkupplungshälfte 27 und dem zweiten Innenverzahnungsteil 6; 73 der zweiten Zahnkupplungshälfte 28, wie in 4 oder 11 als Figuren-Beispiele gezeigt ist, oder
• – zwischen dem ersten Außenverzahnungsteil 3; 70 der ersten Zahnkupplungshälfte 27 und dem zweiten Außenverzahnungsteil 4; 72 der zweiten Zahnkupplungshälfte 28 oder
• – zwischen dem ersten Innenverzahnungsteil 5; 71 der ersten Zahnkupplungshälfte 27 und dem zweiten Außenverzahnungsteil 4; 72 der zweiten Zahnkupplungshälfte 28 oder
• – zwischen dem zweiten Innenverzahnungsteil 6; 73 der zweiten Zahnkupplungshälfte 28 und dem ersten Außenverzahnungsteil 3; 70 der ersten Zahnkupplungshälfte 27.

At least the elastic element 35 can at the following positions of external teeth parts 3 . 4 ; 70 . 72 and internal teeth parts 5 . 6 ; 71 . 73 the toothed coupling halves 27 . 28 to be available:

• - Between the first internal toothing part 5 ; 71 the first toothed coupling half 27 and the second internal gear part 6 ; 73 the second toothed coupling half 28 , as in 4 or 11 is shown as figure examples, or
• - Between the first outer toothing part 3 ; 70 the first toothed coupling half 27 and the second outer tooth part 4 ; 72 the second toothed coupling half 28 or
• - Between the first internal toothing part 5 ; 71 the first toothed coupling half 27 and the second outer tooth part 4 ; 72 the second toothed coupling half 28 or
• - Between the second internal toothing part 6 ; 73 the second toothed coupling half 28 and the first outer tooth part 3 ; 70 the first toothed coupling half 27 ,

The mentioned configurations of the gearing parts apply to variations in the 4 and 11 specified couplings.

• – als Teil eines Innenverzahnungsteils 5, 6; 71, 73 einer der Zahnkupplungshälften 27, 28 und/oder
• – als Teil eines Außenverzahnungsteils 3, 4; 70, 72 einer der Zahnkupplungshälften 27, 28.

The elastic element 35 Furthermore, it can be used at the following positions of internal gear parts 5 . 6 ; 71 . 72 and external teeth parts 3 . 4 ; 70 . 72 the toothed coupling halves 27 . 28 be introduced, at least

• - As part of an internal toothing part 5 . 6 ; 71 . 73 one of the gear coupling halves 27 . 28 and or
• - As part of an external toothing part 3 . 4 ; 70 . 72 one of the gear coupling halves 27 . 28 ,

The elastic element 35 . 41 can have at least two metallic side elements 33 . 34 ; 53 . 54 ; 21 . 22 be assigned to the holder, wherein the elastic element 35 . 41 between the two side elements 33 . 34 ; 53 . 54 ; 21 . 22 vulcanized / vulcanized, holistic an elastic composite element 29 training is.

The elastic composite element 29 can be between opposite inner sides 19 . 20 the toothed coupling halves 27 . 28 be attached and an elastic connection between the two gear coupling halves 27 . 28 form.

In disc-like design of the elastic composite element 29 with bilateral disc-like side elements 33 . 34 can tapped 38 . 39 on the two-sided page elements 33 . 34 be introduced, with the threaded holes 38 . 39 for the screw connections 31 . 32 the elastic composite element 29 on inside flanges 42 . 43 the toothed coupling halves 27 . 28 are provided.

The elastic element 35 can directly on the internal gear part 5 . 6 vulcanized and over the associated first flange 42 the first toothed coupling half 27 with the second flange 43 the second toothed coupling half 28 be firmly connected.

The elastic element 35 can also be directly on the outer toothing part 3 . 4 be vulcanized.

The elastic composite element 29 can in the axial direction as a rubber bush with the embedded vulcanized elastic element 35 between the two interconnected gear coupling halves 27 . 28 of the coupling housing 2 be arranged, wherein the elastic element 35 between the adjacent axially directed side elements 53 . 54 vulcanized in socket form.

As an elastic composite element, a toothed coupling 60 with a wedge package ring 40 with interchangeable fasteners 21 . 22 and with between the adjacent fasteners 21 . 22 located elastic elements 41 between the two gear coupling halves 27 . 28 be introduced.

The elastic elements 41 are between the adjacent fasteners 21 . 22 vulcanized and preferably wedge-shaped.

Keilpakete, which are offset by pressing between the formed on the connection contour fasteners in bias, form a closed ring.

The as elastic composite element 29 trained wedge package ring 40 Thus, it can be designed either as a closed ring or as a segmented assembled ring.

The internal teeth parts 5 . 6 the toothed coupling halves 27 . 28 can with the fasteners 21 ; 22 of the wedge package ring 40 in the change of fasteners 21 . 22 in radial screw connection 55 to the tooth coupling axle 59 be firmly connected.

The elastic composite element 29 can at least at least one associated bearing point in relation to the internal teeth parts 5 . 6 having the bearings 63 . 68 are designed as sliding bearings or rolling bearings.

Between one with the internal toothing part 5 . 6 a toothed coupling half 27 . 28 associated bolted retaining ring 57 and the one inside cover 46 . 45 on the one toothed coupling half 28 . 27 associated inner toothing part 6 . 5 can at least one axial sliding bearing 68 be inserted.

Between the inner toothing part 5 . 6 each of the one toothed coupling half 27 . 28 assigned and screwed ring bushing 62 and the internal gear part 6 . 5 the other toothed coupling half 28 can at least one radial plain bearing 63 be inserted.

In the flange area 56 of the inserted elastic composite element 29 may be at least one elastic composite element 29 associated mechanical breakdown fuse unit 64 be arranged.

The breakdown protection unit 64 can consist of a bolt and a counterpart matched to the bolt.

The elastic sealing element 18 . 47 may be an elastic metallic corrugated tube or a rubber elastic element or a plastic elastic element.

The elastic element 35 can be made electrically insulating.

The elastic element 35 can be made of vulcanizable rubber.

The elastic element 35 can be annular or as a disk between two metallic ring-shaped or disk-shaped side elements 33 . 34 or as an axially extending cylindrical ring between two metallic axially extended side elements 53 . 54 or as wedge-shaped to the tooth coupling axis 59 directed and shaped as well as between two side elements designed as adjacent fasteners 21 . 22 Tension-adjusted, elastic, rubber-like vulcanized spring element 41 be executed.

The following are the gear couplings 30 . 50 . 60 . 80 with reference to 4 to 11 explained in more detail in detail:
In 4 is the elastic element according to the invention 35 between the first as an internal toothing part 5 formed coupling housing part of the first gear coupling half 27 and the second as an internal toothing part 6 trained coupling housing part of the second gear coupling half 28 ,

This in 4 illustrated elastic element 35 is located inside an elastic composite element 29 extending between the first coupling housing part 5 the first toothed coupling half 27 and the second coupling housing part 6 the second toothed coupling half 28 in the radial direction to the coupling axis 59 directed, wherein the inserted elastic composite element 29 with the inside of the walls of the side elements 33 . 34 vulcanized elastic element 35 is provided.

The coupling housing 2 expediently consists of the largely partially symmetrical coupling housing parts 5 . 6 the means of the first screw 31 and the second screw 32 at the on the clutch housing parts 5 . 6 existing, mutually facing flanges 42 . 43 are screwed together. The first flange 42 belongs to the first toothed coupling half 27 and the second flange 43 is the second gear half 28 assigned. The respective coupling housing parts 5 . 6 have a radially directed, in each case the coupling part inner region 17 . 65 sealing inner lid 45 . 46 - a first inner lid 45 and a second inner lid 46 - on.

In 4 are the first coupling housing part 5 and the second coupling housing part 6 as sleeves and the first coupling part 3 and the second coupling part 4 represented as hubs, being in the first hub 3 a first wave 66 and in the second hub 4 a second wave 67 can be located.

The coupling parts 3 . 4 have, similar 1 and 2 , at its outer peripheral area 7 external gears 9 . 10 with domed clutch teeth. The coupling housing 2 has at its inner peripheral area 8th internal gears 11 . 12 on. The external gears 9 . 10 the coupling parts 3 . 4 and the internal gears 11 . 12 of the coupling housing 2 form in the clutch housing parts 5 . 6 one each from the elastic sealing element 18 . 47 sealed and protected, cambered driving toothing 13 . 14 in which corresponding to a relative movement between the coupling parts 3 . 4 and the clutch housing parts 5 . 6 to each other, the internal teeth 11 . 12 and the external teeth 9 . 10 are also movable relative to each other. The relative movement is caused by axial and / or angular deflections of the coupling parts 3 . 4 to the clutch housing parts 5 . 6 ,

On each inner side 19 . 20 between the clutch housing 2 and the coupling parts 3 . 4 is in each case an annular disc-shaped, the driving teeth 13 . 14 and the associated free space 17 . 65 protective lid 45 . 46 - a first lid 45 and a second lid 46 - intended.

Between the clutch housing 2 or the clutch housing parts 5 . 6 and each associated coupling part 3 . 4 This can be done on the two coupling parts 3 . 4 on the one hand and clutch housing parts 5 . 6 on the other hand fastened, elastic sealing element 18 . 47 be arranged as an axially directed corrugated pipe, both the associated cambered driving teeth 13 . 14 seals as well as a predetermined position of the clutch housing 2 resiliently adjusted. The first corrugated tube 18 and the second corrugated tube 47 consist of a metallic material.

Instead of the corrugated pipes 18 . 47 Others can take the takeaway connection 13 . 14 be inserted sealing, elastic metallic sealing elements.

In 4a is a schematic longitudinal sectional view of the gear coupling according to the invention 30 largely similar to 4 with each other directly on the insides 19 . 20 the respective coupling housing parts 5 . 6 by means of the annular elastic composite element 29 including the elastic element 35 in fixed connection toothed coupling halves 27 . 28 shown in the dynamic state to represent the occurring angular displacement under the displacement angle δ.

Similar to the 2 is through the in 4a illustrated deflection of the coupling parts 3 . 4 (Hubs) to each other the relative movement between the clutch housing parts (sleeves) 5 . 6 indicated, wherein the relative movement by a deflection / displacement angle δ between the coupling part rotation axes 15 . 16 and the clutch housing rotational axis 59 is shown.

With the gear coupling 30 Thus, an axial displacement compensation and a radial displacement compensation and an angular displacement compensation are possible. The stiffness is present due to the use of metallic material. An advantage of the gear coupling according to the invention 30 but is that by means of the use of the elastic element 35 the vibrations occurring between the gear coupling halves 27 . 28 opposite the gear couplings 1 of the prior art without the elastic element 35 can be damped at all and a specific stiffness adjustment and electrical insulation is possible.

In general, gear couplings largely consist of metallic materials.

• – der ersten Hülse 5 der ersten Zahnkupplungshälfte 27 und der zweiten Hülse 6 der zweiten Zahnkupplungshälfte 28, wie in 4 gezeigt ist, oder
• – der ersten Nabe 3 der ersten Zahnkupplungshälfte 27 und der zweiten Nabe 4 der zweiten Zahnkupplungshälfte 28 oder
• – der ersten Hülse 5 der ersten Zahnkupplungshälfte 27 und der zweiten Nabe 4 der zweiten Zahnkupplungshälfte 28 oder
• – der zweiten Hülse 6 der zweiten Zahnkupplungshälfte 28 und der ersten Nabe 3 der ersten Zahnkupplungshälfte 27.

The elastic composite element 29 with the vulcanized elastic element 35 can be at the following positions of coupling parts 3 . 4 and clutch housing parts 5 . 6 the toothed coupling halves 27 . 28 the gear coupling 30 be arranged, namely between

• - the first sleeve 5 the first toothed coupling half 27 and the second sleeve 6 the second toothed coupling half 28 , as in 4 is shown, or
• - the first hub 3 the first toothed coupling half 27 and the second hub 4 the second toothed coupling half 28 or
• - the first sleeve 5 the first toothed coupling half 27 and the second hub 4 the second toothed coupling half 28 or
• - the second sleeve 6 the second toothed coupling half 28 and the first hub 3 the first toothed coupling half 27 ,

The latter three possibilities of positions of hubs 3 . 4 and pods 5 . 6 are not drawn.

The elastic element 35 can ring like a disc between two metallic disk-shaped side elements 33 . 34 ( 4 and 4a . 5 . 10 ) or as an axially extending cylindrical ring between two metallic axially extended side elements 53 . 54 ( 6 ) or as wedge-shaped to the coupling axis 59 directed and shaped as well as between two side elements designed as adjacent fasteners 21 . 22 incorporated, elastic, rubber-like vulcanized spring element 41 ( 7 . 8th . 9 ).

In 5 is one opposite 4 enlarged longitudinal sectional view of the elastic composite element 29 with two metallic annular side elements 33 . 34 - the first page element 33 and the second side member 34 - And the wall on both sides vulcanized annular disc-like elastic element 35 specified. On the two-sided side elements 33 . 34 are threaded holes on both sides 38 . 39 - first tapped holes 38 and second tapped holes 39 - introduced for the screw joints 31 and 32 of the composite element 29 on the flanges 42 . 43 the coupling housing parts 5 and 6 are provided.

A schematic representation in the half-longitudinal section of a second gear coupling according to the invention 50 with two communicating toothed clutch halves 27 . 28 is in 6 shown, wherein the elastic composite element 29 in the axial direction as a rubber bush with the embedded vulcanized cylindrical elastic element 35 between the two mutually firmly connected toothed coupling halves 27 . 28 is arranged. The firm connection is made by screwing 49 in the threaded holes 48 between the two flanges 42 . 43 the coupling housing parts 5 and 6 , Again, the inserted elastic element 35 to the axially directed first side member 53 - Flanschbuchsenaußenenteil - and the axially directed second side member 54 - Female inner part - vulcanised. But it can also be a direct vulcanization of the elastic element 35 to the sleeve 6 be provided.

An identical design of the toothed coupling 50 with the axially integrated elastic element 35 it can not be drawn in another embodiment) also in the area of the first toothed coupling half 27 give.

In 7 is a drawn in semi-longitudinal section schematic representation of a third gear coupling according to the invention 60 with two communicating toothed clutch halves 27 . 28 , wherein in the radial direction, the elastic composite element 29 as elastic coupling with a wedge pack ring 40 between the two gear coupling halves 27 . 28 is shown, shown.

For this purpose, one of the possible fastening variants of the elastic composite element is hereinafter 29 performing wedge package ring 40 explained in more detail:
The end part 69 the second sleeve 6 is with the fasteners 21 . 22 of an elastic composite element 29 performing wedge package ring 40 over the radial screw connection 55 firmly screwed together. With the axial screw connections 51 . 52 are the fasteners 21 . 22 on the first flange 42 the first sleeve 5 attached. Between the adjacent fasteners 21 . 22 are each the wedge-shaped vulcanized as elastic elements 35 trained elastic spring elements 41 arranged. Furthermore, one is the first lid 45 at least to the first flange 42 clamping retaining ring 57 by means of a screw connection 26 with the first flange 42 flange 42 of the first sleeve 5 connected. The second lid 46 is by means of the screw connection 58 on the end wall of the end part 69 the second sleeve 6 attached. Between the retaining ring 57 and the bolted second lid 46 there may be a free space.

The respective prescribed sleeves 5 or 6 the toothed coupling halves 27 . 28 can in changing axial screwing 51 . 52 and radial screwing 55 in alternation with the fasteners 21 . 22 be connected so that one of the adjacent fasteners 21 . 22 the screw connections 51 . 52 and the other of the adjacent fastener 22 . 21 the screw connection 55 exhibit.

This is not just a like in the 4 to 6 closed material formation of the elastic element 35 over the entire elastic composite element 29 but it may also be a segmented Elasticementausbildung the elastic composite element 29 to be available.

The elastic composite element 29 can at least one additional bearing point in relation to the clutch housing parts to improve the running properties 5 . 6 exhibit.

This is in 8th a drawn in half longitudinal schematic representation of a third gear coupling 60 with the two toothed coupling halves in communication 27 . 28 to 7 shown, wherein the elastic composite element 29 in the radial direction as a flexible coupling with the wedge pack ring 40 according to 3 between the two gear coupling halves 27 . 28 is arranged. In the following, one of the bearing points for one of the possible fastening variants will be explained in more detail: between that with the first sleeve 5 the first toothed coupling half 27 associated bolted retaining ring 57 and the second lid 46 at the second toothed coupling half 28 associated second sleeve 6 is an axial sliding bearing 68 inserted. The first lid 45 clamping retaining ring 57 is by means of the screw connection 26 with the first flange 42 the first sleeve 5 connected. The second lid 46 is by means of the screw connection 58 to the end wall of the end part 69 the second sleeve 6 attached.

The end part 69 is with the fasteners 21 . 22 by means of radial screwing 55 bolted connected. With the axial screw connections 51 . 52 are the fasteners 21 . 22 on the first flange 42 attached. Between the adjacent fasteners 21 . 22 are each the wedge-shaped vulcanized as elastic elements 35 trained elastic spring elements 41 arranged.

In 9 is a schematic representation of the third gear coupling 60 with the two toothed coupling halves in communication 27 . 28 to 7 shown, wherein the elastic connecting element 29 in the radial direction as a wedge pack ring 40 between the two gear coupling halves 27 . 28 is arranged. In the following, a further storage location for one of the possible attachment variants is explained in more detail:
Between the first sleeve 5 the first toothed coupling half 27 assigned and screwed ring bushing 62 and the second sleeve 6 on the second toothed coupling half 28 is a radial sliding bearing 63 inserted. The ring bush 62 is in firm connection with a ring part 61 that has a screw connection 44 with the first sleeve 5 the first toothed coupling half 27 connected is. The second sleeve 6 closes the flange area 56 by means of the hollow cylindrical end part 69 , The radial bearing 63 is on the one hand on the ring bushing 62 and on the other hand on the inner wall of the end part 69 attached. The end part 69 is with the fasteners 21 . 22 firmly by means of radial screwing 55 connected. With the axial screw connections 51 . 52 are the fasteners 21 . 22 on the first flange 42 attached. Between the adjacent fasteners 21 . 22 are each the wedge-shaped vulcanized as elastic elements 35 trained elastic spring elements 41 arranged.

In principle, a combination of at least one axial sliding bearing and at least one radial sliding bearing can be used as bearing points.

In 10 is a schematic longitudinal sectional view of the first gear coupling according to the invention 30 according to 4 with two communicating toothed clutch halves 27 . 28 and with one between the insides 19 . 20 of the coupling housing 2 . 26 the respective toothed coupling halves 27 . 28 inserted elastic connecting element 29 and a plurality of the elastic composite member 29 assigned, in the flange area 56 located mechanical breakdown fuse units 64 shown.

In 11 is a gear coupling 80 in a schematic longitudinal section illustration with an elastic composite element 29 as well as with two connected gear coupling halves 27 . 28 shown, wherein each of the gear coupling halves 27 . 28 at least one outer toothing part 70 . 72 and an internal gear part 71 . 73 having, in the respective toothed coupling half 27 . 28 a coveted takeaway connection 13 . 14 form, wherein the driving connection 13 . 14 at least one elastic sealing element 18 . 47 assigned.

According to the invention is in the field 56 in which the gear coupling halves 27 . 28 communicate, at least one elastic element 35 arranged.

According to the invention can also with respect to a further toothed coupling 80 (in 11 ) in that area 81 - as in 11 with the reference number 81 is shown - the internal gear part 71 . 73 and / or the external toothing part 70 . 72 at least one elastic element 35 be arranged, wherein the relevant area of the external toothing part 70 . 72 not drawn.

The elastic element 35 may vary depending on the type of arrangement of the elastic element 35 be either disc-shaped or annular.

In the gear coupling 80 is the elastic element 35 within the elastic composite element 29 in the connecting area 56 with the first outer toothing part 70 the first toothed coupling half 27 and with the second outer teeth part 72 the second toothed coupling half 28 arranged. The first external toothing part 70 has at a free end the first external toothing 9 and at the other free end the first flange 42 , The second outer toothing part 72 has at the one free end, the second outer toothing 10 and at the other end the second flange 43 on. In this case, the elastic composite element 29 on the two flanges 42 and 43 the associated external teeth parts 70 . 72 attached. The first internal toothing part 71 consists of a tooth-free hub part 76 and an attached, the first internal toothing 11 having the first sleeve part 74 , The second internal toothing part 73 consists of a tooth-free hub part 77 and an attached thereto, the second internal toothing 12 having second sleeve part 75 , Again, the takeaway connections 13 and 14 present, each by an elastic rubber ring 18 . 47 sealed as elastic sealing elements.

The area 81 in which also an annular elastic element 35 may be located in the area between the glands 78 . 79 the tooth-free hub parts 76 . 77 and the internal teeth 11 . 12 having sleeve parts 74 . 75 , Also with one in the area 81 located elastic element 35 (not shown) can be a substantial damping vibrations occurring and electrical isolation in the gear coupling 80 be achieved.

In the gear coupling 80 according to 11 in which the the gear coupling halves 27 . 28 associated internal gear parts 71 . 73 as in each case with a tooth-free hub part 76 . 77 connected, having an internal toothing sleeve 74 . 75 and the gear coupling halves 27 . 28 associated external teeth parts 70 . 72 each formed as an external tooth having hub part, is the elastic member 35 in the connecting area 56 with the first outer toothing part 70 the first toothed coupling half 27 and with the second outer teeth part 72 the second toothed coupling half 28 in connection.

The toothed couplings according to the invention 30 . 50 . 60 and 80 represent a significant advancement of the gear coupling 1 of the prior art and include at least the two associated toothed coupling halves 27 . 28 which compensate for the displacements according to the prior art, as well as between the two toothed coupling halves 27 . 28 located elastic composite elements 29 with the respectively incorporated elastic elements according to the invention 35 . 41 to the given modified adaptation of the rigidity and, in general, to the damping of occurring vibrations and to the electrical insulation within the toothed couplings 30 . 50 . 60 and 80 ,

LIST OF REFERENCE NUMBERS

1

Tooth coupling according to the prior art

2

clutch housing

3

first coupling part / hub

4

second coupling part / hub

5

first coupling housing part / sleeve

6

second coupling housing part / sleeve

7

outer peripheral area

8th

inner peripheral area

9

first external toothing

10

second external toothing

11

first internal toothing

12

second internal toothing

13

first driving toothing

14

second driving toothing

15

first toothed coupling half axis

16

second toothed coupling half axis

17

first coupling part inside area

18

first elastic sealing element / first corrugated pipe

19

first inside

20

second inside

21

first fastening element

22

second fastening element

23

Passschraube

24

first hole

25

second hole

26

Screw connection for retaining ring 57

27

first toothed coupling half

28

second toothed coupling half

29

elastic composite element

30

first toothed coupling according to the invention

31

first screw

32

second screw

33

first page element

34

second side element

35

elastic member

36

Ring indoors

37

Ring outdoors

38

first tapped hole

39

second threaded hole

40

Keilpaketring according to the prior art

41

Elastic element / elastic spring element

42

first flange

43

second flange

44

Screwing the ring part

45

first inner lid

46

second inner lid

47

second elastic sealing element / second corrugated pipe

48

Bore for dowel screw

49

screw

50

second toothed coupling according to the invention

51

first axial screw connection

52

second axial screw connection

53

Flanschbuchsenaußenteil / page element

54

Bushing inner part / side element

55

radial screw connection

56

flange

57

bolted retaining ring for first inner cover 45

58

Screw connection for second inner lid 46

59

Tooth clutch axis

60

third tooth coupling according to the invention

61

Ring part of the ring bush 62

62

ring socket

63

radial bearings

64

Arrester unit

65

second coupling part inside area

66

first wave

67

second wave

68

axial plain

69

end

70

External tooth part

71

Internally toothed member

72

External tooth part

73

Internally toothed member

74

Inner toothing having sleeve part

75

Inner toothing having sleeve part

76

tooth-free hub part

77

tooth-free hub part

78

screw

79

screw

80

gear coupling

81

Area

δ

Displacement angle of the gear coupling halves

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

• DE 19644884 C1 [0003]
• WO 2013/041082 [0008]

Claims (27)

Gear coupling ( 30 . 50 . 60 ; 80 ) with two communicating toothed coupling halves ( 27 . 28 ), wherein each of the gear coupling halves ( 27 . 28 ) at least one outer toothing part ( 3 . 4 ; 70 . 72 ) and an internal toothing part ( 5 . 6 ; 71 . 73 ), which in the respective toothed coupling half ( 27 . 28 ) a cambered carrier connection ( 13 . 14 ), wherein the carrier connection ( 13 . 14 ) at least one elastic sealing element ( 18 . 47 ), characterized in that at least in one area ( 56 ), in which the toothed coupling halves ( 27 . 28 ) and / or in at least one area ( 81 ) of the internal toothing part ( 5 . 6 ; 71 . 73 ) and / or the external toothing part ( 3 . 4 ; 70 . 72 ) at least one toothed coupling half ( 27 ; 28 ) at least one elastic element ( 35 . 41 ) is arranged. Gear coupling according to claim 1, characterized in that the elastic element ( 35 ) depending on the type of arrangement of the elastic element ( 35 ) is either disc-shaped, annular, cylindrical or wedge-shaped. Toothed coupling according to claim 1 or 2, characterized in that in a toothed coupling ( 30 . 50 . 60 ) the toothed coupling halves ( 27 . 28 ) associated internal gear parts ( 5 . 6 ) as sleeves and the associated external tooth parts ( 3 . 4 ) are formed as hubs, wherein the elastic element ( 35 ) in the connecting area ( 56 ) with the first internal toothing part ( 5 ) of the first toothed coupling half ( 27 ) and with the second internal toothing part ( 6 ) of the second toothed coupling half ( 28 ). Toothed coupling according to claims 1 to 3, characterized in that in a toothed coupling ( 80 ) the toothed coupling halves ( 27 . 28 ) associated internal gear parts ( 71 . 72 ) as in each case with a tooth-free hub part ( 76 . 77 ), an inner toothing having sleeve ( 74 . 75 ) and the associated external teeth parts ( 70 . 72 ) are each formed as external teeth having hub part, wherein the elastic element ( 35 ) in the connecting area ( 56 ) with the first outer toothing part ( 70 ) of the first toothed coupling half ( 27 ) and with the second outer toothing part ( 72 ) of the second toothed coupling half ( 28 ). Gear coupling according to claim 4, characterized in that the elastic element ( 35 ) disc-shaped or annular and between sleeve ( 74 . 75 ) and the tooth-free hub part ( 76 . 77 ) is arranged. Tooth coupling according to claims 3 and / or 4, characterized in that at least the elastic element ( 35 ) at the following positions of external teeth parts ( 3 . 4 ; 70 . 72 ) and internal teeth parts ( 5 . 6 ; 71 . 73 ) of the toothed coupling halves ( 27 . 28 ) is present: between the first inner toothing part ( 5 ; 71 ) of the first toothed coupling half ( 27 ) and the second internal toothing part ( 6 ; 73 ) of the second toothed coupling half ( 28 ) or - between the first outer toothing part ( 3 ; 70 ) of the first toothed coupling half ( 27 ) and the second outer toothing part ( 4 ; 72 ) of the second toothed coupling half ( 28 ) or - between the first internal toothing part ( 5 ; 71 ) of the first toothed coupling half ( 27 ) and the second outer toothing part ( 4 ; 72 ) of the second toothed coupling half ( 28 ) or - between the second internal toothing part ( 6 ; 73 ) of the second toothed coupling half ( 28 ) and the first outer toothing part ( 3 ; 70 ) of the first toothed coupling half ( 27 ). Toothed coupling according to claims 1 to 6, characterized in that the elastic element ( 35 ) at the following positions of internal toothing parts ( 5 . 6 ; 71 . 72 ) and external teeth parts ( 3 . 4 ; 70 . 72 ) of the toothed coupling halves ( 27 . 28 ) is introduced, at least - as part of an internal toothing part ( 5 . 6 ; 71 . 73 ) one of the gear coupling halves ( 27 . 28 ) and / or - as part of an outer toothing part ( 3 . 4 ; 70 . 72 ) one of the gear coupling halves ( 27 . 28 ). Gear coupling according to claims 1 to 7, characterized in that the elastic element ( 35 ) at least two metallic side elements ( 33 . 34 ; 53 . 54 ; 21 . 22 ) are associated with the holder, wherein the elastic element ( 35 ) between the two side elements ( 33 . 34 ; 53 . 54 ; 21 . 22 ) on / vulcanized, holistic an elastic composite element ( 29 training) is. Gear coupling according to claims 1 to 6 and 8, characterized in that the elastic composite element ( 29 ) between opposite inner sides ( 19 . 20 ) of the toothed coupling halves ( 27 . 28 ) and an elastic connection between the two toothed coupling halves ( 27 . 28 ) trains. Toothed coupling according to Claim 9, characterized in that, in the case of a disk-like design of the elastic composite element ( 29 ) with bilateral disc-like side elements ( 33 . 34 ) Threaded holes ( 38 . 39 ) on the two-sided page elements ( 33 . 34 ) are introduced, wherein the threaded holes ( 38 . 39 ) for the screw connections ( 31 . 32 ) of the elastic composite element ( 29 ) at inside flanges ( 42 . 43 ) of the toothed coupling halves ( 27 . 28 ) are provided. Gear coupling according to one of the preceding claims, characterized in that the elastic element ( 35 ) directly on the internal toothing part ( 5 . 6 ) or external tooth part ( 3 . 4 ) is vulcanized. Gear coupling according to claim 6, characterized in that the elastic composite element ( 29 ) in the axial direction as a rubber bush with the embedded vulcanized elastic element ( 35 ) between the two interconnected Zahnkupplungshälften ( 27 . 28 ) of the coupling housing ( 2 ), wherein the elastic element ( 35 ) between the adjacent axially directed side elements ( 53 . 54 ) is vulcanized in vulcanized form. Toothed coupling according to claim 9, characterized in that as a composite elastic element a coupling with a Keilpaketring ( 40 ) with interchangeable fasteners ( 21 . 22 ) and with between the adjacent fastening elements ( 21 . 22 ) elastic elements ( 41 ) between the two toothed coupling halves ( 27 . 28 ) is introduced. Gear coupling according to claim 13, characterized in that the elastic elements ( 41 ) between the adjacent fastening elements ( 21 . 22 ) are vulcanized. Toothed coupling according to claim 13 or 14, characterized in that wedge packs, which are offset by press-fitting between the fastening elements formed on the connection contour, form a closed ring. Toothed coupling according to claims 13 to 15, characterized in that as an elastic composite element ( 29 ) trained wedge pack ring ( 40 ) is formed either as a closed ring or as a segmented assembled ring. Toothed coupling according to claim 13, characterized in that the internal toothing parts ( 5 . 6 ) of the toothed coupling halves ( 27 . 28 ) with the fastening elements ( 21 ; 22 ) of the wedge package ring ( 40 ) in the change of fasteners ( 21 . 22 ) in radial screw connection ( 55 ) to the tooth coupling axis ( 59 ) are firmly connected. Gear coupling according to claims 11 to 17, characterized in that the elastic composite element ( 29 ) at least one associated bearing point in relation to the internal toothing parts ( 5 . 6 ), the depositories ( 63 . 68 ) are designed as plain bearings or roller bearings. Toothed coupling according to claim 18, characterized in that between one with the internal toothing part ( 5 . 6 ) a toothed coupling half ( 27 . 28 ) associated bolted retaining ring ( 57 ) and an inner lid ( 46 . 45 ) on the one toothed coupling half ( 28 . 27 ) associated inner toothing part ( 6 . 5 ) at least one axial sliding bearing ( 68 ) is inserted. Toothed coupling according to claim 18, characterized in that between the inner toothing part ( 5 . 6 ) each of the one toothed coupling half ( 27 . 28 ) and screwed ring bushing ( 62 ) and the internal toothing part ( 6 . 5 ) of the respective other toothed coupling half ( 28 ) at least one radial sliding bearing ( 63 ) is inserted. Toothed coupling according to one of the preceding claims, characterized in that the bearing points are a combination of at least one axial sliding bearing and at least one radial sliding bearing. Toothed coupling according to claim 8, characterized in that in the flange ( 56 ) of the inserted elastic composite element ( 29 ) at least one elastic composite element ( 29 ) associated mechanical breakdown protection unit ( 64 ) is arranged. Gear coupling according to claim 22, characterized in that the breakdown protection unit ( 64 ) consists of a bolt and a counterpart matched to the bolt. Gear coupling according to claim 1, characterized in that the elastic sealing element ( 18 . 47 ) is an elastic metallic corrugated tube or a rubber elastic element or a plastic elastic element. Gear coupling according to claim 1, characterized in that the elastic element ( 35 ) is designed electrically insulating. Gear coupling according to claim 1, characterized in that the elastic element ( 35 ) consists of vulcanizable rubber. Gear coupling according to at least one of claims 1 to 26, characterized in that the elastic element ( 35 ) annularly as a disk between two metallic disc-shaped side elements ( 33 . 34 ) or as an axially extending cylindrical ring between two metallic axially extended side elements ( 53 . 54 ) or as wedge-shaped to the tooth coupling axis ( 59 ) and formed and between two side elements formed as adjacent fasteners ( 21 . 22 ) tension-adapted, elastic, rubber-like vulcanized spring element ( 41 ) is executed.

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