DE102015007688B4 - gear coupling - Google Patents

Abstract

Tooth coupling (30, 50, 60; 80) with two connected tooth coupling halves (27, 28), each of the tooth coupling halves (27, 28) having at least one external toothing part (3, 4; 70, 72) and one internal toothing part (5, 6; 71, 73), which form a cambered driving connection (13, 14) in the respective tooth coupling half (27, 28), at least one elastic sealing element (18, 47) being assigned to the driving connection (13, 14), characterized in that at least in one region (56) in which the tooth coupling halves (27, 28) are connected, and/or in at least one region (81) of the internal toothing part (5, 6; 71, 73) and/or the external toothing part (3, 4; 70, 72) of at least one toothed coupling half (27; 28), at least one damping elastic element (35, 41) is arranged between the two coupling halves (27, 28), wherein the elastic element (35) is assigned at least two metallic side elements (33, 34; 53, 54; 21, 22) for holding, wherein the elastic element (35) is vulcanized on/in between the two side elements (33, 34; 53, 54; 21, 22), forming an elastic composite element (29) as a whole.

Description

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

With the increasing desire for ever more compact drive system designs and at the same time increasing the power density, gear couplings are becoming increasingly important. They are able to compensate for relatively large angular displacements as well as axial and radial displacements with a positive transmission of torque and rotary motion. The constantly growing performance requirements of drive systems, such as wind turbines, rolling mill drives and rail drives (trams and suburban trains, high-speed trains) require gear couplings as a machine element with the highest power density.

In the printed publication DE 196 44 884 C1 a toothed coupling 1 with two toothed coupling halves 27, 28 is described, in which the two toothed coupling halves 27, 28 are directly screwed together by means of fitting screws 23. In 1 a double tooth coupling 1 screwed together in this way is specified, in which the two tooth coupling halves 27, 28 essentially each have a coupling housing 2 with two coupling housing parts 5, 6 as two sleeves and two coupling parts 3, 4 arranged within the coupling housing 2 as hubs, wherein the coupling parts 3, 4 each define a coupling part inner region 17, 65 in the interior of the coupling housing 2, between which a flange region 56 is present.

The clutch housing 2 expediently consists of the largely symmetrical clutch housing parts 5, 6 which are screwed together by means of the fitting screws 23 on the flanges 42, 43 present on the clutch housing parts 5, 6 and facing one another and each contain a radially directed inner cover 45, 46 which seals the inner regions 17, 65 of the clutch parts.

The coupling parts 3, 4 have 7 external gears 9, 10 with cambered coupling teeth on their outer peripheral area. The coupling housing 2 has 8 internal gears 11, 12 on its inner periphery. The external gears 9, 10 of the coupling parts 3, 4 and the internal gears 11, 12 of the coupling housing 2 each form a cambered driving gear 13, 14 in the coupling housing parts 5, 6, which is sealed and protected by an elastic sealing element 18, 47 and in which the internal gears 11, 12 and the external gears 9, 10 can also move relative to one another in accordance with a relative movement between the coupling parts 3, 4 and the coupling housing parts 5, 6. The relative movement is caused by axial and/or angular deflections of the coupling parts 3, 4 to the coupling housing parts 5, 6.

A ring-disk-shaped cover 45, 46 protecting the driving teeth 13, 14 and the associated inner areas 17, 65 of the clutch part is provided on the inner sides 19, 20 between the clutch housing 2 and the clutch part 3, 4. The clutch housing axis is indicated by the reference numeral 59.

Between the coupling housing 2 or the coupling housing parts 5, 6 and each coupling part 3, 4, an axially directed corrugated pipe 18, 47 fastened to the two coupling parts 3 and 5 as well as coupling housing parts 4 and 6 can be arranged as an elastic sealing element, which both seals the associated cambered driving teeth 13, 14 and resiliently adjusts a predetermined position of the coupling housing 2.

Instead of the corrugated pipes 18, 47, other elastic sealing elements can also be used to seal the drive connection 13, 14.

Through the 2 The deflection of the coupling parts 3, 4 (hubs) relative to one another results in a relative movement to the clutch housing parts (sleeves) 5, 6, which is represented by a deflection/displacement angle δ between the coupling part rotation axes 15, 16 and the clutch housing rotation axis 59.

In addition, axial and radial displacement compensation is possible. The rigidity is provided by the use of metallic material. Damping properties are almost non-existent in conventional gear couplings.

In general, gear couplings are made largely of metallic materials. Due to the material, they have a high torsional rigidity and a very low damping capacity between the gear coupling half facing the drive and the gear coupling half facing the output.

The high stiffness and low damping properties can have a negative impact on the vibration behavior of the entire transmission in certain drive configurations. In particularly sensitive drives, there is a requirement to adjust the stiffness in order to specifically adjust the natural frequencies of the drive, whereby the original installation space of the coupling within the drive system must remain the same, which means that in many cases a high power density is required. The use of purely elastic couplings, e.g. wedge pack couplings or link couplings, is not possible because the elastic coupling level has a significantly lower power density due to the material used and the required displacement capability and therefore has to be made larger in order to transmit the required torque and compensate for the displacements that occur.

Another disadvantage is that the gear couplings do not have any electrically insulating properties between the gear coupling halves of the drive and the output. As a result, the further development of the entire coupling technology often requires couplings to have an electrically insulating effect.

In the publication WO 2013/ 041 082 A1 an elastic one-piece wedge package ring is described. 3 The wedge package ring 40 shown comprises at least several wedge-shaped metallic fastening elements 21 and 22 arranged around the ring and directed towards its ring axis, each with a continuous bore 24, 25 directed radially towards the ring axis, wherein the continuous bores 24, 25 are provided for at least one radially directed screw connection directed from the ring outer region 37 to the ring inner region 36 for fastening the fastening elements 21, 22 to two adapted coupling parts, wherein between the fastening elements 21 and 22 arranged adjacently around the ring there is an elastic, rubber-like vulcanized spring element 41, which is vulcanized onto the adjacent wedge-shaped metallic fastening elements 21 and 22 in a vulcanization process, so that an alternating arrangement of the metallic wedge-shaped fastening elements 21 and 22 and the alternatingly introduced, elastic Spring elements 41 form a wedge package ring 40 produced in a vulcanization process.

From the DE 198 55 593 A1 is a curved tooth coupling with a first internally toothed coupling part, which can be mounted on a drive shaft in a rotationally fixed manner with a hub, and with a second internally toothed coupling part, which can be mounted in a rotationally fixed manner with a hub, as well as with a hollow cylindrical middle part connecting the first and second coupling parts, which has a spherical outer toothing at each of its two ends, which is convex on the circumference in the axial direction and which engages with an internal toothing of the corresponding coupling parts. The coupling parts are sealed against fixed housing parts and by shaft seals.

Furthermore, the DE 1 208 565 A a toothed coupling for connecting two shaft ends is known, in which one coupling half is designed as a sleeve in which one shaft end and the second coupling half are accommodated with drive connections and in which the second coupling half connected to the other shaft end is supported by a spring on a part of the sleeve. The sleeve opening is closed by a closing ring which surrounds the second coupling half and is connected to the sleeve, wherein the closing ring provided on the sleeve has an annular rib which projects axially inwards.

In addition, the DE 198 37 942 A1 a curved tooth coupling with a first internally toothed coupling part, which can be mounted on a drive shaft in a rotationally fixed manner with a hub, and with a second internally toothed coupling part, which can be mounted on an output shaft in a rotationally fixed manner with a hub, and with a middle part connecting the first and second coupling parts, which has a spherical external toothing at each of its two ends, which engages in the internal toothing of the corresponding coupling parts. Seals are arranged between the coupling parts and the middle part, the middle part having a coaxial, cylindrical guide surface in the area of the coupling parts, on which an inner sealing element of a seal is guided in an axially displaceable manner, while an outer sealing element is connected to the associated coupling part.

The DE 298 08 627 U1 discloses a curved tooth coupling for drive systems of rail vehicles, consisting of two coupling hubs each mounted on a shaft end in a rotationally fixed manner, each with a straight toothing, and a coupling sleeve with curved toothings at the end, which engage with the two straight toothings of the coupling hubs. The coupling sleeve has a radial flange at each end that carries the curved toothing, with limit stops for the offset movements of the coupling sleeve being arranged on one of the coupling hubs.

And also from the US 2 737 033 A a flexible coupling for connecting a driving and a driven element, the coupling comprising an externally toothed gear structure connected to one of the elements and having a tooth contact pitch circle, an internally toothed gear structure connected to the other ner element and having a tooth contact pitch circle slightly larger than the pitch circle of the externally toothed gear. The teeth of the gear structures are loosely fitted into one another to provide a radial gap therebetween. Also present is a corrugated elastic member fitted into the gap and substantially contacting the sides of the teeth of the toothed structures at the respective pitch circles.

The invention is based on the object of specifying a tooth coupling which is designed in such a way that occurring displacements can be largely compensated, the coupling stiffness can be significantly reduced, vibrations can be dampened and electrical insulation can be achieved.

The problem is solved by the features of patent claim 1.

In the toothed coupling with two connected toothed coupling halves, each of the toothed coupling halves has at least one external toothed part and one internal toothed part, which form a cambered driving connection in the respective toothed coupling half, wherein at least one elastic sealing element is assigned to the driving connection, wherein according to the characterizing part of patent claim 1, at least one elastic element is arranged at least in one region in which the toothed coupling halves are connected and/or in at least one region of the internal toothed part and/or the external toothed part of at least one toothed coupling half.

Depending on the design of the gear coupling and the type of arrangement of the elastic element, the elastic element can be either disc-shaped, ring-shaped, cylindrical or wedge-shaped.

The internal gear parts generally represent internally toothed coupling parts and the external gear parts represent externally toothed coupling parts.

In a toothed coupling, the internal toothed parts assigned to the toothed coupling halves can be designed as sleeves and the associated external toothed parts can be designed as hubs, wherein the elastic element in the connecting region is connected to the first internal toothed part of the first toothed coupling half and to the second internal toothed part of the second toothed coupling half.

In a further toothed coupling, the internal toothed parts assigned to the toothed coupling halves can be designed as a sleeve having an internal toothing and each connected to a toothless hub part, and the assigned external toothed parts can each be designed as a hub part having an external toothing, wherein the elastic element in the connecting region is connected to the first external toothed part of the first toothed coupling half and to the second external toothed part of the second toothed coupling half.

The elastic element can be ring-shaped 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 can be present at the following positions of external toothed parts and internal toothed parts of the gear coupling halves:

• - between the first internal toothed part of the first gear coupling half and the second internal toothed part of the second gear coupling half or
• - between the first external toothed part of the first gear coupling half and the second external toothed part of the second gear coupling half or
• - between the first internal toothed part of the first gear coupling half and the second external toothed part of the second gear coupling half or
• - between the second internal toothed part of the second gear coupling half and the first external toothed 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 can be introduced at the following other positions of internal toothed parts and external toothed parts of the toothed coupling halves, at least

• - as part of an internal toothed part of one of the toothed coupling halves and/or
• - as part of an external toothed part of one of the toothed coupling halves.

According to the invention, at least two metallic side elements are assigned to the elastic element for holding purposes, wherein the elastic element is vulcanized between the two side elements, forming an elastic composite element as a whole.

The elastic composite element containing the elastic element can also be fastened between opposite inner sides of the tooth coupling halves and form an elastic connection between the two tooth coupling halves.

In the case of a disc-like design of the elastic composite element with disc-like side elements on both sides, threaded holes can be made on the side elements on both sides, whereby the threaded holes are provided for the screw connections of the elastic composite element on the inside, opposite flanges of the gear coupling halves.

The elastic element can be vulcanized directly onto the internal toothed part and firmly 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 tooth coupling halves of the coupling housing, wherein the elastic element is vulcanized in the form of a bushing between the adjacent axially directed side elements.

However, a coupling with a wedge package ring with alternating fastening elements and with elastic elements designed as spring elements located between the adjacent fastening elements can also be introduced as an elastic composite element between the two tooth coupling halves.

The corresponding elastic elements can be vulcanized between the adjacent fastening elements.

The wedge packages, which are pre-stressed by pressing them between the fastening elements formed on the connecting contour, can form a closed ring.

The wedge package ring, which is designed as an elastic composite element, can thus be designed either as a closed ring or as a segmented ring.

The internal toothed parts of the gear coupling halves can be firmly connected to the fastening elements of the wedge pack ring by alternating the fastening elements in a radial screw connection directed towards the gear coupling axis.

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

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

At least one radial plain bearing can be inserted between the ring bushing assigned to the internal toothing part of one tooth coupling half and screwed to it and the internal toothing part of the other tooth coupling half.

At least one mechanical puncture protection unit associated with the elastic composite element can be arranged in the flange area of the inserted elastic composite element.

The anti-puncture device can consist of a bolt and a counterpart adapted to the bolt.

The elastic sealing element associated with the driving connection can be an elastic metallic corrugated pipe or an elastic rubber element or an elastic plastic element.

The elastic element can be designed to be electrically insulating.

The elastic element can be made of vulcanizable rubber.

The elastic element can be designed in a ring shape as a disk between two metallic disk-shaped side elements or as an axially extended cylindrical ring between two metallic axially extended side elements or as a wedge-shaped, elastic, rubber-like, vulcanized spring element directed and shaped towards the tooth coupling axis and tension-adjusted between two adjacent fastening elements designed as side elements.

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

The invention is explained in more detail by means of embodiments based on several drawings.

• 1 eine schematische Längsschnitt-Darstellung einer herkömmlichen Zahnkupplung mit miteinander direkt an den Innenseiten der jeweiligen Kupplungsgehäuse in fester Verbindung stehenden Zahnkupplungshälften im statischen Zustand nach dem Stand der Technik,
• 2 eine schematische Längsschnitt-Darstellung einer herkömmlichen Zahnkupplung mit miteinander direkt an den Innenseiten der jeweiligen Kupplungsgehäuse in fester Verbindung stehenden Zahnkupplungshälften im dynamischen Zustand nach 1 zur Darstellung von auftretenden Winkelverlagerungen, der axialen Verlagerung und der radialen Verlagerung nach dem Stand der Technik,
• 3 eine schematische perspektivische Darstellung eines Keilpaketrings nach dem Stand der Technik,
• 4 eine schematische Längsschnitt-Darstellung einer erfindungsgemäßen Zahnkupplung mit zwei in Verbindung stehenden Zahnkupplungshälften und mit einem zwischen den Innenseiten des Kupplungsgehäuses der jeweiligen Zahnkupplungshälften und in radialer Richtung ausgerichteten, eingefügten elastischen Verbundelement,
• 4a eine schematische Längsschnitt-Darstellung der erfindungsgemäßen Zahnkupplung ähnlich der 4 mit miteinander direkt an den Innenseiten der jeweiligen Kupplungsgehäuse in fester Verbindung stehenden Zahnkupplungshälften im dynamischen Zustand zur Darstellung der auftretenden Winkelverlagerung,
• 5 eine vergrößerte Längsschnitt-Darstellung eines elastischen Verbundelements gemäß der 4 mit metallischen Seitenelementen und einem dazwischen beidseitig anvulkanisierten ringscheibenartigen Elastikelement,
• 6 eine schematische Darstellung im Halblängsschnitt einer zweiten Zahnkupplung mit zwei in Verbindung stehenden Zahnkupplungshälften nach dem Stand der Technik, wobei das elastische Verbundelement in axialer Richtung als Gummibuchse mit einem zwischen den beiden jeweiligen Kupplungsteilen befindlichen, beidseitig anvulkanisierten ringscheibenartigen Elastikelement angeordnet ist,
• 7 eine schematische Darstellung im Halblängsschnitt einer dritten Zahnkupplung mit zwei in Verbindung stehenden Zahnkupplungshälften nach dem Stand der Technik, wobei das elastische Verbundelement in radialer Richtung als Keilpaketring zwischen den beiden Zahnkupplungen angeordnet ist,
• 8 eine schematische Darstellung im Halblängsschnitt der Zahnkupplung mit zwei in Verbindung stehenden Zahnkupplungshälften nach 7 nach dem Stand der Technik, wobei das elastische Verbundelement in radialer Richtung als Keilpaketring zwischen den beiden Zahnkupplungshälften angeordnet ist, wobei zwischen dem der ersten Hülse der ersten Zahnkupplungshälfte zugeordneten Halterungsring und dem innenseitigen Deckel an der der zweiten Zahnkupplungshälfte zugeordneten zweiten Hülse ein Axialgleitlager eingefügt ist,
• 9 eine schematische Darstellung im Halblängsschnitt der Zahnkupplung mit zwei in Verbindung stehenden Zahnkupplungshälften nach 7 nach dem Stand der Technik, wobei das elastische Verbundelement in radialer Richtung als Keilpaketring zwischen den beiden Zahnkupplungshälften angeordnet ist, wobei zwischen dem der ersten Hülse der ersten Zahnkupplungshälfte zugeordneten Halterungsring und dem innenseitigen Deckel an der der zweiten Zahnkupplungshälfte zugeordneten zweiten Hülse ein Radialgleitlager eingefügt ist,
• 10 eine schematische Längsschnitt-Darstellung der ersten erfindungsgemäßen Zahnkupplung mit zwei in Verbindung stehenden Zahnkupplungshälften und mit einem zwischen den Innenseiten des Kupplungsgehäuses der jeweiligen Zahnkupplungshälften eingefügten elastischen Verbundelement und mehreren im Flanschbereich vorhandenen mechanischen Durchschlagsicherungseinheiten und
• 11 eine schematische Längsschnitt-Darstellung einer Zahnkupplung mit das Elastikelement enthaltendem, elastischem Verbundelement mit Innenverzahnungsteilen und Außenverzahnungsteilen bildenden Mitnahmeverbindungen.

They show:

• 1 a schematic longitudinal sectional view of a conventional gear coupling with each other directly on the inside of the respective coupling housings in a fixed connection standing tooth coupling halves in the static state according to the state of the art,
• 2 a schematic longitudinal sectional view of a conventional gear coupling with gear coupling halves firmly connected to each other directly on the inner sides of the respective coupling housings in the dynamic state according to 1 for the representation of occurring angular displacements, axial displacement and radial displacement according to the state of the art,
• 3 a schematic perspective view of a wedge pack ring according to the prior art,
• 4 a schematic longitudinal sectional view of a toothed coupling according to the invention with two connected toothed coupling halves and with an elastic composite element inserted between the inner sides of the coupling housing of the respective toothed coupling halves and aligned in the radial direction,
• 4a a schematic longitudinal sectional view of the tooth coupling according to the invention similar to the 4 with toothed coupling halves firmly connected to each other directly on the inner sides of the respective coupling housings in the dynamic state to show the angular displacement that occurs,
• 5 an enlarged longitudinal section of an elastic composite element according to the 4 with metallic side elements and a ring-disk-like elastic element vulcanized on both sides,
• 6 a schematic representation in half longitudinal section of a second toothed coupling with two connected toothed coupling halves according to the prior art, wherein the elastic composite element is arranged in the axial direction as a rubber bushing with an annular disk-like elastic element vulcanized on both sides between the two respective coupling parts,
• 7 a schematic representation in half longitudinal section of a third tooth coupling with two connected tooth coupling halves according to the prior art, wherein the elastic composite element is arranged in the radial direction as a wedge package ring between the two tooth couplings,
• 8 a schematic representation in half longitudinal section of the gear coupling with two connected gear coupling halves according to 7 according to the prior art, wherein the elastic composite element is arranged in the radial direction as a wedge package ring between the two gear coupling halves, wherein an axial plain bearing is inserted between the retaining ring assigned to the first sleeve of the first gear coupling half and the inner cover on the second sleeve assigned to the second gear coupling half,
• 9 a schematic representation in half longitudinal section of the gear coupling with two connected gear coupling halves according to 7 according to the prior art, wherein the elastic composite element is arranged in the radial direction as a wedge package ring between the two gear coupling halves, wherein a radial plain bearing is inserted between the retaining ring assigned to the first sleeve of the first gear coupling half and the inner cover on the second sleeve assigned to the second gear coupling half,
• 10 a schematic longitudinal sectional view of the first tooth coupling according to the invention with two connected tooth coupling halves and with an elastic composite element inserted between the inner sides of the coupling housing of the respective tooth coupling halves and several mechanical puncture protection units present in the flange area and
• 11 a schematic longitudinal sectional representation of a tooth coupling with the elastic element containing the elastic composite element with driving connections forming internal toothing parts and external toothing parts.

The following are the 4 , 4a and the 7 considered together, whereby first a summary of all essential features of the gear couplings according to the invention is given.

In 4 as the main reference figure is a schematic longitudinal sectional representation of a first toothed coupling 30 with two connected toothed coupling halves 27, 28, wherein each of the toothed coupling halves 27, 28 has at least one external toothing part 3, 4 and one internal toothing part 5, 6, which form a cambered driving connection 13, 14 in the respective toothed coupling half 27, 28, wherein the driving connection 13, 14 is assigned at least one elastic sealing element 18, 47.

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

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

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

In the static, e.g. resting state according to 4 the first toothed coupling half axis 15 and the second toothed coupling half axis 16 are in line with the toothed coupling axis 59. In 4a In contrast, in the dynamic state, the first gear coupling half axis 15 and the second gear coupling half axis 16 do not coincide with the gear coupling axis 59.

Depending on the type of arrangement of the elastic element 35, 41 within the tooth coupling, the elastic element 35, 41 can be either disc-shaped, ring-shaped, cylindrical or wedge-shaped.

In the toothed couplings 30, 50 described in more detail below, the internal toothed parts 5, 6 assigned to the toothed coupling halves 27, 28 are designed as sleeves and the assigned external toothed parts 3, 4 as hubs, wherein the elastic element 35 in the connecting region 56 is connected to the first internal toothed part 5 of the first toothed coupling half 27 and to the second internal toothed part 6 of the second toothed coupling half 28.

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

In another gear coupling 80 e.g. according to 11 , the internal toothed parts 71, 72 assigned to the toothed coupling halves 27, 28 are designed as a sleeve 74, 75 having an internal toothing, each connected to a tooth-free hub part 76, 77, and the assigned external toothed parts 70, 72 are each designed as a hub part having an external toothing, wherein the elastic element 35 in the connecting region 56 is connected to the first external toothed part 70 of the first toothed coupling half 27 and to the second external toothed part 72 of the second toothed coupling half 28.

The elastic element 35 can also be ring-shaped and arranged between the sleeve 74, 75 and the tooth-free hub part 76, 77 in the region 81.

• - 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 be present at the following positions of external toothed parts 3, 4; 70, 72 and internal toothed parts 5, 6; 71, 73 of the toothed coupling halves 27, 28:

• - between the first internal toothed part 5; 71 of the first toothed coupling half 27 and the second internal toothed part 6; 73 of the second toothed coupling half 28, as in 4 or 11 shown as figure examples, or
• - between the first external toothed part 3; 70 of the first toothed coupling half 27 and the second external toothed part 4; 72 of the second toothed coupling half 28 or
• - between the first internal toothed part 5; 71 of the first toothed coupling half 27 and the second external toothed part 4; 72 of the second toothed coupling half 28 or
• - between the second internal toothed part 6; 73 of the second toothed coupling half 28 and the first external toothed part 3; 70 of the first toothed coupling half 27.

The configurations of the gear parts mentioned apply to variations of 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 can further be introduced at the following positions of internal toothing parts 5, 6; 71, 72 and external toothing parts 3, 4; 70, 72 of the tooth coupling halves 27, 28, at least

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

At least two metallic side elements 33, 34; 53, 54; 21, 22 are assigned to the elastic element 35, 41 for holding purposes, wherein the elastic element 35, 41 is vulcanized between the two side elements 33, 34; 53, 54; 21, 22, forming an elastic composite element 29 as a whole.

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

In the case of a disk-like design of the elastic composite element 29 with disk-like side elements 33, 34 on both sides, threaded holes 38, 39 can be introduced into the side elements 33, 34 on both sides, wherein the threaded holes 38, 39 are provided for the screw connections 31, 32 of the elastic composite element 29 on the inner flanges 42, 43 of the tooth coupling halves 27, 28.

The elastic element 35 can be vulcanized directly onto the internal toothed part 5, 6 and firmly connected to the second flange 43 of the second toothed coupling half 28 via the associated first flange 42 of the first toothed coupling half 27.

The elastic element 35 can also be vulcanized directly onto the external toothing part 3, 4.

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

As an elastic composite element, a tooth coupling 60 with a wedge package ring 40 with alternately arranged fastening elements 21, 22 and with elastic elements 41 located between the adjacent fastening elements 21, 22 can be introduced between the two tooth coupling halves 27, 28.

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

Wedge packs, which are pre-stressed by pressing them in between the fastening elements formed on the connecting contour, form a closed ring.

The wedge package ring 40 designed as an elastic composite element 29 can thus be designed either as a closed ring or as a segmented ring.

The internal toothed parts 5, 6 of the tooth coupling halves 27, 28 can be firmly connected to the fastening elements 21; 22 of the wedge package ring 40 by alternating the fastening elements 21, 22 in a radial screw connection 55 directed towards the tooth coupling axis 59.

The elastic composite element 29 can have at least one associated bearing point in relation to the internal toothing parts 5, 6, wherein the bearing points 63, 68 are designed as plain bearings or rolling bearings.

At least one axial plain bearing 68 can be inserted between a screwed retaining ring 57 associated with the internal toothing part 5, 6 of a toothed coupling half 27, 28 and an inner cover 46, 45 on the internal toothing part 6, 5 associated with a toothed coupling half 28, 27.

At least one radial plain bearing 63 can be inserted between the ring bushing 62 assigned to the internal toothing part 5, 6 of one of the toothed coupling halves 27, 28 and screwed thereto and the internal toothing part 6, 5 of the other toothed coupling half 28.

At least one mechanical puncture protection unit 64 associated with the elastic composite element 29 can be arranged in the flange region 56 of the inserted elastic composite element 29.

The anti-puncture device 64 may consist of a bolt and a counterpart adapted to the bolt.

The elastic sealing element 18, 47 can be an elastic metallic corrugated pipe or an elastic rubber element or an elastic plastic element.

The elastic element 35 can be designed to be electrically insulating.

The elastic element 35 can consist of vulcanizable rubber.

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

• In 4 befindet sich das erfindungsgemäße Elastikelement 35 zwischen dem ersten als Innenverzahnungsteil 5 ausgebildeten Kupplungsgehäuseteil der ersten Zahnkupplungshälfte 27 und dem zweiten als Innenverzahnungsteil 6 ausgebildeten Kupplungsgehäuseteil der zweiten Zahnkupplungshälfte 28.

In the following, the gear couplings 30, 50, 60, 80 are described with reference to the 4 to 11 explained in more detail:

• In 4 the elastic element 35 according to the invention is located between the first clutch housing part of the first toothed coupling half 27, which is designed as an internal toothed part 5, and the second as an internal toothed sion part 6 formed clutch housing part of the second toothed clutch half 28.

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

The clutch housing 2 expediently consists of the largely partially symmetrical clutch housing parts 5, 6 which are screwed together by means of the first screw connection 31 and the second screw connection 32 on the flanges 42, 43 present on the clutch housing parts 5, 6 and facing one another. The first flange 42 belongs to the first gear coupling half 27 and the second flange 43 is assigned to the second gear coupling half 28. The respective clutch housing parts 5, 6 have a radially directed inner cover 45, 46 - a first inner cover 45 and a second inner cover 46 - which seals the inner area 17, 65 of the clutch part.

In 4 the first clutch housing part 5 and the second clutch housing part 6 are shown as sleeves and the first clutch part 3 and the second clutch part 4 are shown as hubs, wherein a first shaft 66 can be located in the first hub 3 and a second shaft 67 can be located in the second hub 4.

The coupling parts 3, 4 have, similarly 1 and 2 , on their outer peripheral area 7 external gears 9, 10 with cambered clutch teeth. The clutch housing 2 has 8 internal gears 11, 12 on its inner peripheral area. The external gears 9, 10 of the clutch parts 3, 4 and the internal gears 11, 12 of the clutch housing 2 each form a cambered driving gear 13, 14 in the clutch housing parts 5, 6, which is sealed and protected by the elastic sealing element 18, 47 and in which the internal gears 11, 12 and the external gears 9, 10 can also move relative to one another in accordance with a relative movement between the clutch parts 3, 4 and the clutch housing parts 5, 6. The relative movement is caused by axial and/or angular deflections of the coupling parts 3, 4 to the coupling housing parts 5, 6.

On each of the inner sides 19, 20 between the clutch housing 2 and the clutch parts 3, 4, a ring-disk-shaped cover 45, 46 - a first cover 45 and a second cover 46 - is provided which protects the driving teeth 13, 14 and the associated free space 17, 65.

Between the coupling housing 2 or the coupling housing parts 5, 6 and each associated coupling part 3, 4, the elastic sealing element 18, 47 attached to the two coupling parts 3, 4 on the one hand and to the coupling housing parts 5, 6 on the other hand can be arranged as an axially directed corrugated tube, which both seals the associated cambered driving teeth 13, 14 and also resiliently adjusts a predetermined position of the coupling housing 2. The first corrugated tube 18 and the second corrugated tube 47 are made of a metallic material.

Instead of the corrugated pipes 18, 47, other elastic metallic sealing elements sealing the drive connection 13, 14 can also be introduced.

In 4a is a schematic longitudinal sectional view of the tooth coupling 30 according to the invention largely similar to 4 with toothed coupling halves 27, 28 firmly connected to one another directly on the inner sides 19, 20 of the respective coupling housing parts 5, 6 by means of the annular elastic composite element 29 including the elastic element 35 in the dynamic state to illustrate the occurring angular displacement at the displacement angle δ.

Similar to the 2 is through the 4a The deflection of the coupling parts 3, 4 (hubs) relative to one another indicates the relative movement between the coupling housing parts (sleeves) 5, 6, wherein the relative movement is shown by a deflection/displacement angle δ between the coupling part rotation axes 15, 16 and the clutch housing rotation axis 59.

With the tooth coupling 30, axial displacement compensation and radial displacement compensation as well as angular displacement compensation are thus possible. The rigidity is present due to the use of metallic material. However, an advantage of the tooth coupling 30 according to the invention is that by using the elastic element 35, the vibrations occurring between the tooth coupling halves 27, 28 can be dampened in comparison to the tooth couplings 1 of the prior art without the elastic element 35 and a targeted stiffness adjustment as well as electrical insulation is possible.

In general, gear couplings consist largely 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 arranged at the following positions of coupling parts 3, 4 and coupling housing parts 5, 6 of the tooth coupling halves 27, 28 of the tooth coupling 30, namely between

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

The last three possible positions of hubs 3, 4 and sleeves 5, 6 are not shown.

The elastic element 35 can be annular as a disc between two metallic disc-shaped side elements 33, 34 ( 4 and 4a , 5 , 10 ) or as an axially extended cylindrical ring between two metallic axially extended side elements 53, 54 ( 6 ) or as a wedge-shaped, elastic, rubber-like, vulcanized spring element 41 ( 7 , 8 , 9 ) must be carried out.

In 5 is a opposite 4 enlarged longitudinal sectional view of the elastic composite element 29 with two metallic ring-shaped side elements 33, 34 - the first side element 33 and the second side element 34 - and the ring-disk-like elastic element 35 vulcanized between them on both sides of the wall. Threaded holes 38, 39 - first threaded holes 38 and second threaded holes 39 - are made on both sides of the side elements 33, 34, which are intended for the screw connections 31 and 32 of the composite element 29 on the flanges 42, 43 of the coupling housing parts 5 and 6.

A schematic representation in half longitudinal section of a second tooth coupling 50 according to the invention with two connected tooth coupling halves 27, 28 is shown in 6 shown, wherein the elastic composite element 29 is arranged in the axial direction as a rubber bushing with the embedded vulcanized cylindrical elastic element 35 between the two firmly connected tooth coupling halves 27, 28. The firm connection is made by screw connections 49 in the threaded holes 48 between the two flanges 42, 43 of the coupling housing parts 5 and 6. Here too, the inserted elastic element 35 is vulcanized onto the axially directed first side element 53 - flange bushing outer part - and the axially directed second side element 54 - bushing inner part.

However, direct vulcanization of the elastic element 35 to the sleeve 6 can also be provided.

An identical design of the toothed coupling 50 with the axially integrated elastic element 35 can also be provided in a different embodiment (not shown) in the area of the first toothed coupling half 27.

• Das Endteil 69 der zweiten Hülse 6 ist mit den Befestigungselementen 21, 22 des ein elastisches Verbundelement 29 darstellenden Keilpaketrings 40 über die radiale Verschraubung 55 fest verschraubt verbunden. Mit den axialen Verschraubungen 51, 52 sind die Befestigungselemente 21, 22 an dem ersten Flansch 42 der ersten Hülse 5 befestigt. Zwischen den benachbarten Befestigungselementen 21, 22 sind jeweils die keilförmig anvulkanisierten als Elastikelemente 35 ausgebildeten elastischen Federelemente 41 angeordnet.

In 7 is a schematic representation of a third tooth coupling 60 according to the invention, drawn in a semi-longitudinal section, with two connected tooth coupling halves 27, 28, wherein the elastic composite element 29 is arranged in the radial direction as an elastic coupling with a wedge pack ring 40 between the two tooth coupling halves 27, 28. In this regard, one of the possible fastening variants of the wedge pack ring 40 representing the elastic composite element 29 is explained in more detail below:

• The end part 69 of the second sleeve 6 is firmly screwed to the fastening elements 21, 22 of the wedge package ring 40, which represents an elastic composite element 29, via the radial screw connection 55. The fastening elements 21, 22 are fastened to the first flange 42 of the first sleeve 5 by the axial screw connections 51, 52. The elastic spring elements 41, which are vulcanized in a wedge shape and designed as elastic elements 35, are arranged between the adjacent fastening elements 21, 22.

Furthermore, a retaining ring 57 clamping the first cover 45 at least to the first flange 42 is connected to the first flange 42 of the first sleeve 5 by means of a screw connection 26. The second cover 46 is fastened to the front wall of the end part 69 of the second sleeve 6 by means of the screw connection 58.

There may be a free space between the retaining ring 57 and the screwed-on second cover 46.

The respective sleeves 5 or 6 of the gear coupling halves 27, 28 can be in alternate The fastening elements 21, 22 can be connected to the fastening elements 21, 22 by means of a separate axial screw connection 51, 52 and a radial screw connection 55, so that one of the adjacent fastening elements 21, 22 has the screw connections 51, 52 and the other of the adjacent fastening elements 22, 21 has the screw connection 55.

This means that not only is there a 4 until 6 closed material formation of the elastic element 35 over the entire elastic composite element 29, but there can also be a segmented elastic element formation of the elastic composite element 29.

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

• Zwischen dem mit der ersten Hülse 5 der ersten Zahnkupplungshälfte 27 zugeordneten verschraubten Halterungsring 57 und dem zweiten Deckel 46 an der der zweiten Zahnkupplungshälfte 28 zugeordneten zweiten Hülse 6 ist ein Axialgleitlager 68 eingefügt. Der den ersten Deckel 45 klemmende Halterungsring 57 ist mittels der Verschraubung 26 mit dem ersten Flansch 42 der ersten Hülse 5 verbunden. Der zweite Deckel 46 ist mittels der Verschraubung 58 an die Stirnwand des Endteils 69 der zweiten Hülse 6 befestigt.

For this purpose, 8 a schematic representation of a third toothed coupling 60 with the two connected toothed coupling halves 27, 28 according to 7 shown, wherein the elastic composite element 29 in the radial direction as an elastic coupling with the wedge package ring 40 according to 3 is arranged between the two gear coupling halves 27, 28. One of the bearing points for one of the possible fastening variants is explained in more detail below:

• An axial plain bearing 68 is inserted between the screwed retaining ring 57 associated with the first sleeve 5 of the first gear coupling half 27 and the second cover 46 on the second sleeve 6 associated with the second gear coupling half 28. The retaining ring 57 clamping the first cover 45 is connected to the first flange 42 of the first sleeve 5 by means of the screw connection 26. The second cover 46 is fastened to the end wall of the end part 69 of the second sleeve 6 by means of the screw connection 58.

The end part 69 is screwed to the fastening elements 21, 22 by means of the radial screw connection 55. The fastening elements 21, 22 are fastened to the first flange 42 by means of the axial screw connections 51, 52. The elastic spring elements 41, which are vulcanized in a wedge shape and designed as elastic elements 35, are arranged between the adjacent fastening elements 21, 22.

In 9 is a schematic representation of the third gear coupling 60 with the two connected gear coupling halves 27, 28 according to 7 shown, wherein the elastic connecting element 29 is arranged in the radial direction as a wedge package ring 40 between the two tooth coupling halves 27, 28.

• Zwischen der ersten Hülse 5 der ersten Zahnkupplungshälfte 27 zugeordneten und verschraubten Ringbuchse 62 und der zweiten Hülse 6 an der zweiten Zahnkupplungshälfte 28 ist ein Radialgleitlager 63 eingefügt. Die Ringbuchse 62 steht in fester Verbindung mit einem Ringteil 61, das über eine Verschraubung 44 mit der ersten Hülse 5 der ersten Zahnkupplungshälfte 27 verbunden ist. Die zweite Hülse 6 verschließt den Flanschbereich 56 mittels des hohlzylindrischen Endteils 69. Das Radiallager 63 ist einerseits an der Ringbuchse 62 und andererseits an der Innenwand des Endteils 69 angelagert. Das Endteil 69 ist mit den Befestigungselementen 21, 22 fest mittels der radialen Verschraubung 55 verbunden. Mit den axialen Verschraubungen 51, 52 sind die Befestigungselemente 21, 22 an dem ersten Flansch 42 befestigt. Zwischen den benachbarten Befestigungselementen 21, 22 sind jeweils die keilförmig anvulkanisierten als Elastikelemente 35 ausgebildeten elastischen Federelemente 41 angeordnet.
• Im Prinzip können als Lagerstellen auch eine Kombination von mindestens einem Axialgleitlager und mindestens einem Radialgleitlager eingesetzt sein.

In the following, another bearing point for one of the possible fastening variants is explained in more detail:

• A radial plain bearing 63 is inserted between the ring bushing 62 assigned and screwed to the first sleeve 5 of the first gear coupling half 27 and the second sleeve 6 on the second gear coupling half 28. The ring bushing 62 is firmly connected to a ring part 61 which is connected to the first sleeve 5 of the first gear coupling half 27 via a screw connection 44. The second sleeve 6 closes the flange area 56 by means of the hollow cylindrical end part 69. The radial bearing 63 is mounted on the one hand on the ring bushing 62 and on the other hand on the inner wall of the end part 69. The end part 69 is firmly connected to the fastening elements 21, 22 by means of the radial screw connection 55. The fastening elements 21, 22 are fastened to the first flange 42 by means of the axial screw connections 51, 52. The wedge-shaped, vulcanized elastic spring elements 41 designed as elastic elements 35 are arranged between the adjacent fastening elements 21, 22.
• In principle, a combination of at least one axial plain bearing and at least one radial plain bearing can also be used as bearing points.

In 10 is a schematic longitudinal sectional view of the first tooth coupling 30 according to the invention according to 4 with two connected tooth coupling halves 27, 28 and with an elastic connecting element 29 inserted between the inner sides 19, 20 of the coupling housing 2, 26 of the respective tooth coupling halves 27, 28 and several mechanical puncture protection units 64 assigned to the elastic connecting element 29 and located in the flange area 56.

In 11 a tooth coupling 80 is shown in a schematic longitudinal sectional view with an elastic composite element 29 and with two connected tooth coupling halves 27, 28, wherein each of the tooth coupling halves 27, 28 has at least one external toothing part 70, 72 and one internal toothing part 71, 73, which form a cambered driving connection 13, 14 in the respective tooth coupling half 27, 28, wherein the driving connection 13, 14 is assigned at least one elastic sealing element 18, 47.

According to the invention, at least one elastic element 35 is arranged in the region 56 in which the toothed coupling halves 27, 28 are connected.

According to the invention, with respect to a further toothed coupling 80 (in 11 ) in the area 81 - as in 11 at least one elastic element 35 can be arranged between the inner toothed part 71, 73 and/or the outer toothed part 70, 72 - as shown by the reference numeral 81 -, the relevant region of the outer toothed part 70, 72 not being shown.

Depending on the type of arrangement of the elastic element 35, the elastic element 35 can be either disc-shaped or ring-shaped.

In the tooth coupling 80, the elastic element 35 is arranged within the elastic composite element 29 in the connecting region 56 with the first external toothing part 70 of the first tooth coupling half 27 and with the second external toothing part 72 of the second tooth coupling half 28. The first external toothing part 70 has the first external toothing 9 at one free end and the first flange 42 at the other free end. The second external toothing part 72 has the second external toothing 10 at one free end and the second flange 43 at the other end. The elastic composite element 29 is attached to the two flanges 42 and 43 of the associated external toothing parts 70, 72. The first internal toothing part 71 consists of a toothless hub part 76 and a first sleeve part 74 attached thereto and having the first internal toothing 11. The second internal toothing part 73 consists of a toothless hub part 77 and a second sleeve part 75 attached thereto and having the second internal toothing 12.

Here, too, the driving connections 13 and 14 are present, each of which is sealed by an elastic rubber ring 18, 47 as elastic sealing elements.

The region 81, in which an annular elastic element 35 can also be arranged, is located in the area between the screw connections 78, 79 of the tooth-free hub parts 76, 77 and the sleeve parts 74, 75 having the internal toothing 11, 12. An elastic element 35 (not shown) located in the region 81 can also achieve extensive damping of vibrations that occur and electrical insulation in the tooth coupling 80.

In the gear coupling 80 according to 11 , in which the internal toothed parts 71, 73 assigned to the toothed coupling halves 27, 28 are designed as a sleeve 74, 75 having an internal toothing, each connected to a tooth-free hub part 76, 77, and the external toothed parts 70, 72 assigned to the toothed coupling halves 27, 28 are each designed as a hub part having an external toothing, the elastic element 35 is connected in the connecting region 56 to the first external toothed part 70 of the first toothed coupling half 27 and to the second external toothed part 72 of the second toothed coupling half 28.

The tooth couplings 30, 50, 60 and 80 according to the invention represent a significant further development of the tooth coupling 1 of the prior art and comprise at least the two connected tooth coupling halves 27, 28, which compensate for the displacements according to the prior art, as well as the elastic composite elements 29 located between the two tooth coupling halves 27, 28 with the elastic elements 35, 41 according to the invention incorporated in each case for the predetermined modified adaptation of the stiffness and furthermore generally for the damping of occurring vibrations and for electrical insulation within the tooth couplings 30, 50, 60 and 80.

list of reference symbols

1

state-of-the-art gear coupling

2

clutch housing

3

first clutch part/hub

4

second clutch part/hub

5

first clutch housing part/sleeve

6

second clutch housing part/sleeve

7

outer peripheral area

8

inner peripheral area

9

first external gearing

10

second external gear

11

first internal gearing

12

second internal gearing

13

first driving gear

14

second driving gear

15

first gear coupling half axis

16

second gear coupling half axis

17

first clutch part interior area

18

first elastic sealing element/first corrugated pipe

19

first inside page

20

second inner page

21

first fastening element

22

second fastening element

23

fitting screw

24

first drilling

25

second hole

26

screw connection for retaining ring 57

27

first gear coupling half

28

second gear 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 page element

35

elastic element

36

inner ring area

37

outer ring area

38

first threaded hole

39

second threaded hole

40

state-of-the-art wedge package ring

41

elastic element/elastic spring element

42

first flange

43

second flange

44

screwing of the ring part

45

first inner cover

46

second inner cover

47

second elastic sealing element/second corrugated pipe

48

hole for fitting screw

49

screw connection

50

second toothed coupling according to the invention

51

first axial screw connection

52

second axial screw connection

53

flange bushing outer part/side element

54

inner part of the socket/side element

55

radial screw connection

56

flange area

57

screwed retaining ring for first inner cover 45

58

Screw connection for second inner cover 46

59

gear coupling axis

60

third toothed coupling according to the invention

61

ring part of the ring bushing 62

62

ring bushing

63

radial plain bearings

64

breakdown protection unit

65

second clutch part interior area

66

first wave

67

second wave

68

axial plain bearings

69

end part

70

external gear part

71

internal gear part

72

external gear part

73

internal gear part

74

sleeve part with internal teeth

75

sleeve part with internal teeth

76

tooth-free hub part

77

tooth-free hub part

78

screw connection

79

screw connection

80

gear coupling

81

Area

δ

displacement angle of the gear coupling halves

Claims (26)

Tooth coupling (30, 50, 60; 80) with two connected tooth coupling halves (27, 28), each of the tooth coupling halves (27, 28) having at least one external toothing part (3, 4; 70, 72) and one internal toothing part (5, 6; 71, 73), which form a cambered driving connection (13, 14) in the respective tooth coupling half (27, 28), at least one elastic sealing element (18, 47) being assigned to the driving connection (13, 14), characterized in that at least in one region (56) in which the tooth coupling halves (27, 28) are connected, and/or in at least one region (81) of the internal toothing part (5, 6; 71, 73) and/or the external toothing part (3, 4; 70, 72) of at least one toothed coupling half (27; 28) at least one damping elastic element (35, 41) is arranged between the two coupling halves (27, 28), wherein the elastic element (35) is assigned at least two metallic side elements (33, 34; 53, 54; 21, 22) for holding, wherein the elastic element (35) is arranged between the two side elements (33, 34; 53, 54; 21, 22) is vulcanized onto/in, forming an elastic composite element (29) as a whole. gear coupling according to claim 1 , characterized in that the elastic element (35) is either disc-shaped, annular, cylindrical or wedge-shaped, depending on the type of arrangement of the elastic element (35). gear coupling according to claim 1 or 2 , characterized in that in a tooth coupling (30, 50, 60) the internal toothing parts (5, 6) assigned to the tooth coupling halves (27, 28) are designed as sleeves and the assigned external toothing parts (3, 4) are designed as hubs, wherein the elastic element (35) in the connecting region (56) is connected to the first internal toothing part (5) of the first tooth coupling half (27) and to the second internal toothing part (6) of the second tooth coupling half (28). Tooth coupling according to the claims 1 until 3 , characterized in that in a toothed coupling (80) the internal toothed parts (71, 73) assigned to the toothed coupling halves (27, 28) are designed as a sleeve (74, 75) each connected to a tooth-free hub part (76, 77) and having an internal toothing, and the assigned external toothed parts (70, 72) are each designed as a hub part having an external toothing, wherein the elastic element (35) in the connecting region (56) is connected to the first external toothed part (70) of the first toothed coupling half (27) and to the second external toothed part (72) of the second toothed coupling half (28). gear coupling according to claim 4 , characterized in that the elastic element (35) is disc-shaped or annular and is arranged between the sleeve (74, 75) and the tooth-free hub part (76, 77). Toothed coupling according to the claims 3 and/or 4, characterized in that at least the elastic element (35) is present at the following positions of external toothing parts (3, 4; 70, 72) and internal toothing parts (5, 6; 71, 73) of the toothed coupling halves (27, 28): - between the first internal 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 external toothing part (3; 70) of the first toothed coupling half (27) and the second external 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 external toothing part (4; 72) of the second toothed coupling half (28) or - between the second Internal toothed part (6; 73) of the second toothed coupling half (28) and the first external toothed part (3; 70) of the first toothed coupling half (27). Tooth coupling according to the claims 1 until 6 , characterized in that the elastic element (35) is introduced at the following positions of internal toothing parts (5, 6; 71, 72) and external toothing parts (3, 4; 70, 72) of the tooth coupling halves (27, 28), at least - as part of an internal toothing part (5, 6; 71, 73) of one of the tooth coupling halves (27, 28) and/or - as part of an external toothing part (3, 4; 70, 72) of one of the tooth coupling halves (27, 28). Toothed coupling according to the claims 1 until 6 , characterized in that the elastic composite element (29) is fastened between opposite inner sides (19, 20) of the toothed coupling halves (27, 28) and forms an elastic connection between the two toothed coupling halves (27, 28). gear coupling according to claim 8 , characterized in that , in the case of a disc-like design of the elastic composite element (29) with disc-like side elements (33, 34) on both sides, threaded bores (38, 39) are introduced into the side elements (33, 34) on both sides, wherein the threaded bores (38, 39) are provided for the screw connections (31, 32) of the elastic composite element (29) on inner flanges (42, 43) of the tooth coupling halves (27, 28). Tooth coupling according to one of the preceding claims, characterized in that the elastic element (35) is vulcanized directly onto the internal toothing part (5, 6) or external toothing part (3, 4). gear coupling according to claim 8 , characterized in that the elastic composite element (29) is arranged in the axial direction as a rubber bushing with the embedded vulcanized elastic element (35) between the two interconnected tooth coupling halves (27, 28) of the coupling housing (2), wherein the elastic element (35) is vulcanized in/in between the adjacent axially directed side elements (53, 54) in the form of a bushing. gear coupling according to claim 8 , characterized in that the elastic composite element is a coupling with a wedge package ring (40) with alternately arranged fastening elements (21, 22) and with elastic elements located between the adjacent fastening elements (21, 22). elements (41) between the two toothed coupling halves (27, 28). gear coupling according to claim 12 , characterized in that the elastic elements (41) are vulcanized between the adjacent fastening elements (21, 22). gear coupling according to claim 12 or 13 , characterized in that wedge packages, which are prestressed by pressing in between the fastening elements formed on the connecting contour, form a closed ring. Tooth coupling according to the claims 12 until 14 , characterized in that the wedge package ring (40) designed as an elastic composite element (29) is designed either as a closed ring or as a segmented ring. gear coupling according to claim 12 , characterized in that the internal toothed parts (5, 6) of the tooth coupling halves (27, 28) are firmly connected to the fastening elements (21; 22) of the wedge package ring (40) in alternation of the fastening elements (21, 22) in a radial screw connection (55) directed towards the tooth coupling axis (59). Tooth coupling according to the claims 10 until 16 , characterized in that the elastic composite element (29) has at least one associated bearing point in relation to the internal toothing parts (5, 6), wherein the bearing points (63, 68) are designed as plain bearings or rolling bearings. gear coupling according to claim 17 , characterized in that at least one axial plain bearing (68) is inserted between a screwed retaining ring (57) associated with the internal toothing part (5, 6) of a toothed coupling half (27, 28) and an inner cover (46, 45) on the internal toothing part (6, 5) associated with a toothed coupling half (28, 27). gear coupling according to claim 17 , characterized in that at least one radial plain bearing (63) is inserted between the ring bushing (62) assigned to the internal toothing part (5, 6) of one tooth coupling half (27, 28) and screwed thereto and the internal toothing part (6, 5) of the other tooth coupling half (28). Tooth coupling according to one of the preceding claims, characterized in that the bearing points are a combination of at least one axial plain bearing and at least one radial plain bearing. gear coupling according to claim 1 , characterized in that at least one mechanical puncture protection unit (64) associated with the elastic composite element (29) is arranged in the flange region (56) of the inserted elastic composite element (29). gear coupling according to claim 21 , characterized in that the puncture protection unit (64) consists of a bolt and a counterpart adapted to the bolt. gear coupling according to claim 1 , characterized in that the elastic sealing element (18, 47) is an elastic metallic corrugated pipe or an elastic rubber element or an elastic plastic element. gear coupling according to claim 1 , characterized in that the elastic element (35) is designed to be electrically insulating. gear coupling according to claim 1 , characterized in that the elastic element (35) consists of vulcanizable rubber. Tooth coupling according to at least one of the Claims 1 until 25 , characterized in that the elastic element (35) is designed in an annular manner as a disk between two metallic disk-shaped side elements (33, 34) or as an axially extended cylindrical ring between two metallic axially extended side elements (53, 54) or as an elastic, rubber-like, vulcanized spring element (41) which is directed and shaped in a wedge shape towards the tooth coupling axis (59) and is tension-adjusted between two adjacent fastening elements (21, 22) designed as side elements.

Images