DE102012017435A1 - Torsionally flexible coupling device for torque transmission and method for mounting the coupling device - Google Patents

Abstract

In the case of torsionally flexible couplings, the task often arises of being able to mount them in a drive train as simply or flexibly as possible. At the same time, the couplings must be designed so that an angular or axial offset can be compensated to compensate for tolerances or changes in position. In some cases, assembly is not possible due to the design characteristics of the couplings or an offset cannot be compensated for sufficiently. It is proposed to design a torsionally flexible coupling device 1 to be pluggable at an interface between a coupling hub 10 and a coupling intermediate flange 30, and to provide corresponding coupling components 20, 40, in particular a holding element 40 with one or more shear bodies 20, the coupling hub 10 and the coupling intermediate flange 30 in each case Have recesses 11, 31 in which the shear body 20 can be arranged. As a result, the assembly can be simplified, the area of application of the coupling device can be expanded, and an axial offset can also be better compensated for.

Description

The invention relates to a torsionally flexible coupling device for transmitting torque, with a clutch hub, a Kupplungszwischenflansch and a flange. Furthermore, the invention relates to individual coupling components of the coupling device.

In the field of drive technology, it is often necessary to provide a coupling between a (diesel) engine and a generator in the drive train, by means of which an offset and / or vibrations can be compensated. These are z. B. torsionally flexible couplings known, which have a vulcanized rubber element between a hub on the one hand and a flywheel connection on the other hand, and which z. B. be used as a generator clutch for freestanding generator sets. Such couplings can compensate within certain limits axial, angular and / or radial offset. Also, axial vibrations z. B. caused during operation of a motor, are damped by the rubber element. At least one of the interfaces of the coupling to other machine elements, in particular an interface in the form of a flywheel connection, can also be designed as a membrane of a preferably high-strength spring material in order to further improve the damping properties.

Whether elastic or rigid couplings are used, the couplings have to be mounted, which can lead to narrow boundary conditions depending on the adjacent machine elements and the space available. Since the couplings often consist of several serially interconnected coupling elements, such boundary conditions z. B. be taken into account by the assembly order. Sometimes, however, it is also necessary to arrange elastic elements of such elastic couplings in a variant which better meets a specific installation situation. However, developing or maintaining such variants is expensive. Some areas of application have still not been accessible with some types of coupling due to mounting problems.

Task is to provide a coupling which is simple and suitable for a wide range of applications. It is also an object to develop a previously known, a rubber element having a torsionally flexible coupling so that it can compensate for an offset. Last but not least, it is an object to make a torsionally flexible coupling so that it is easy to install, even with difficult assembly tasks.

At least one of these objects is achieved by a clutch hub according to claim 1, a shear body according to claim 3, a coupling intermediate flange according to claim 7, a retaining element according to claim 8 and a torsionally flexible coupling device according to claim 10. Advantageous developments of the invention are explained in the respective subclaims.

According to the invention, it is proposed to design the torsionally flexible coupling device and its coupling components in such a way that the torsionally flexible coupling device can be plugged in, in particular for the purpose of easier assembly and a wider range of use, and if possible also an axial offset can be compensated. By pluggable version z. B. in a simple way, a mounting of the coupling device for driving connection between a motor and a generator in so-called bell installations done. In bell internals, in which the coupling device is later inaccessible in the generator bell, the coupling device is connected to the flywheel of the motor on the one hand and with the generator shaft on the other. According to the plug connection can be threaded when pushing together generator and motor. In this phase, the coupling device is no longer accessible for mounting purposes, since it is already completely inside the generator bell. In the case of the coupling device according to the invention, a coupling flange designed as a membrane can in many cases be dispensed with if an axial offset can already be sufficiently compensated by the plug-in design, especially by shear bodies which are cylindrical along the axial direction.

One of the over the prior art to be modified coupling components is the clutch hub. A clutch hub for a torsionally flexible coupling device for torque transmission is designed with a first interface for coupling to a machine element, in particular to a shaft, and a second interface for coupling to a flange of the coupling device. According to the invention it is proposed that the coupling hub can be plugged in the axial direction by having at the second interface a recess in which a shear body for transmitting torque between the flange member and the clutch hub can be arranged.

As an axial direction is preferably a direction parallel to a central longitudinal axis of the coupling device to understand, be it parallel to one or the other direction of extension of the central longitudinal axis. Is it z. B. at least partially rotationally symmetrical constructed coupling device, so the axial direction is parallel to the axis of rotation.

As a clutch hub is preferably a coupling element to understand, which is provided for connection to a shaft. However, the clutch hub does not necessarily have to be a component of a shaft-hub connection, but the term "clutch hub" can also be understood to mean flanges of a torsionally flexible coupling device which are designed to be connected to another flange of a component unlike the coupling device.

According to a preferred embodiment, the recess is arranged on a radially outwardly facing lateral surface of the clutch hub. In this way, a simple construction of the clutch hub can be ensured, and at the same time, the shearing bodies can be arranged at an advantageous distance to a rotation axis and thereby also transmit a larger torque than if they were arranged close to the axis of rotation.

Preferably, the recess is provided on a disc-shaped part of the clutch hub, the disc-shaped part projecting radially relative to a hub main body, in particular in the region of twice the diameter of the hub main body.

An additional coupling component used in a coupling device according to the invention is the shear body. According to the invention, it is proposed that a shearing body is provided, which is designed to transmit shearing forces arranged in a recess between a coupling hub and a coupling intermediate flange of the coupling device. By a shear body, which can be arranged at the interface between the clutch hub and a Kupplungszwischenflansch, the assembly of the coupling device in a particularly simple manner possible. The clutch hub can, for. B. already connected to a drive or output shaft, and only then be plugged into the intermediate coupling flange.

According to a preferred embodiment, the shearing body is formed with a lateral surface aligned parallel to a central longitudinal axis of the shearing body. As a result, the function of the shear body is ensured regardless of the position of the clutch hub with respect to the intermediate coupling flange. The clutch hub can shift along the shear body and the desired torsional stiffness of the coupling device is still ensured.

Preferably, the lateral surface is a cylindrical outer circumferential surface. Particularly preferably, the outer circumferential surface is interrupted by a groove in which an O-ring is arranged, which projects slightly beyond the outer lateral surface radially outwardly and is adapted to bear in damping contact against an inner circumferential surface of a Kupplungszwischenflanschs. The O-ring is intended to prevent the (possibly with play) connector z. B. rattles in the drive train between the engine and generator when warming up the engine idling. It can also be provided on a shear body several O-rings. Only at higher torque, the O-ring is pressed elastically and the shear body carries.

According to a preferred embodiment, the shear body is formed like a plug and consists of a fiber composite material. A plug-like trained shear body may have in the direction of its central longitudinal axis an extension which is relatively small with respect to an extension orthogonal thereto in the radial direction. As a result, large shear forces can be absorbed. The fiber composite material may also prevent metallic rattling and adhesive seizures in the metal / metal contact within the coupling device.

According to one embodiment, the shear body is pultruded or consists of pre-wound, preferably high-strength fabric and thermosetting resin. In this case, the fiber arrangement can be aligned to a predominant part at least approximately parallel to a central longitudinal axis of the shear body. In this way, a good resistance, in particular compressive strength and bending strength can be set.

As a thermosetting resin z. As epoxy, polyester or vinyl ester into consideration. With epoxy can be z. B. achieve temperature resistances in the range of 130-180 ° Celsius. In addition to the predominant orientation, the fiber arrangement can also be oriented at least approximately parallel to a central longitudinal axis and also to a small extent at least approximately in a circumferential direction of the shearing body. Preferably, the proportion of oriented in the circumferential direction of fibers is very small, in particular less than 10 percent, more preferably less than 5 percent. As a result, a good interlaminar shear strength which is effective in the coupling device can be ensured, and a shear body which is inherently stable can be provided even with particularly high shear forces acting on the shear body.

The shear body can, for. B. depending on the torque to be transmitted, also be provided several times, in particular in a number of three, four, five, six or more pieces. Preferably, six shearing bodies are arranged symmetrically with respect to a central longitudinal axis of the coupling device.

According to one variant, the shearing body can also be compression-molded and optionally uncut, and then preferably consists of phenol. Regardless of the type of material or the manufacturing process, the shear body can be obtained from round rods of the material by z. B. round rods of a diameter of 6 to 600, preferably 10 to 100 mm and a length of 1 to 1000 mm in the desired length can be divided. In this case, the shear bodies by compression molding or pultrusion a density in the range of z. B. 1.1 to 1.35 kg / dm ^{3 are} awarded, which can also serve to not change a predetermined by a rubber element torsional stiffness of the coupling device. Material, density, fiber content and arrangement can be chosen so that a lifetime of more than 15,000 hours is ensured. Temperature resistances in the range of -45 ° Celsius to 90 ° Celsius are feasible, even up to 180 ° Celsius in the case of epoxy resin.

Another of the prior art to be modified coupling components is the intermediate coupling flange. A Kupplungszwischenflansch for a torsionally flexible coupling device is provided to establish a connection between a clutch hub and a flange and has a first interface for connection to the clutch hub and a second interface for connection to the flange. According to the invention, it is proposed to design the intermediate coupling flange in such a way that it is designed to store a coupling hub in the axial direction by having a recess at the first interface, in which a shear body can be arranged for transmitting a torque between the flange element and the coupling hub , Preferably, the first interface is formed by an inner circumferential surface of the intermediate coupling flange. A pluggable interface on the intermediate coupling flange provides the advantage of good accessibility, ie a simple coupling to the clutch hub, as explained above.

More preferably, the intermediate coupling flange is disc-shaped, particularly preferably also annular, so as a disc with an inner diameter which differs only slightly from the outer diameter in relation to the absolute diameter, z. In the range of 15 to 35 percent. As a result, a lighter yet very robust and suitable for high torques and speeds Kupplungszwischenflansch be provided. The entire rotating mass of the coupling device can be kept low.

In the context of the present invention, it has been found that one or more shearing bodies can be arranged on a separate retaining element in order to ensure even easier assembly. According to the invention, a retaining element is proposed for a torsionally flexible coupling device for torque transmission, which has a first interface for connection to a coupling intermediate flange and a second interface arranged serially in an axial direction for connection to a flange element of the coupling device and for positioning of a shear body at the first interface is trained. The retaining element is preferably no function of torque transmission. In this way, it can be made filigree, so with thin wall thickness and therefore also easy.

Preferably, the holding member is disc-shaped, particularly preferably also annular, so as a disc having an inner diameter which differs only slightly from the outer diameter in relation to the absolute diameter, z. In the range of 10 to 30 percent. As a result, a lighter yet very robust and suitable for high torques and speeds Kupplungszwischenflansch be provided. The entire rotating mass of the coupling device can be kept low.

According to a preferred embodiment, at least one shearing body is arranged on the holding element such that an outer circumferential surface of the shearing body projects beyond the holding element in a radial direction inwardly and outwardly. In other words, the holding element has a diameter which is greater than the width of a circumferential strip of material of the disc-like and optionally also annular holding element. As a result, the retaining element can be provided without complicated structural changes between the intermediate coupling flange and the flange element. In this case, the holding element may be alone on the shear body or in conjunction with the coupling device. The retaining element can thus be supported solely by recesses in the intermediate flange element and the clutch hub, ie indirectly via the shear body or bodies. Another fixation is not required, which ensures a quick and easy installation. Rather, by dimensioning the retaining element such that in the radial direction an overlap with the Zwischenflanschelement and the clutch hub is given a backup of the retaining element and thus of the shear body or between the Zwischenflanschelement and the clutch hub be ensured. According to a variant, the retaining element is screwed to the side facing the flange of the intermediate flange with this and also centered thereon. In this variant, the Zwischenflanschelement and the holding element can be provided together with the shear bodies as a pre-assembled machine element, and the assembly in the field can be done very quickly or easily. Preferably, the shear body with axial and radial play are fixed to the support member, which facilitates the threading of the connector. Under torque, the shear bodies position themselves between the positive flanks of the clutch hub and intermediate flange element.

The above object is, as mentioned, already solved by each of the coupling components described above, and in principle it is also achieved by a torsionally flexible coupling device for torque transmission according to claim 10, comprising a clutch hub, a Kupplungszwischenflansch and a flange member, preferably each as described above are formed, wherein the invention proposes that the torsionally elastic coupling device can be plugged in the axial direction. The axial direction is preferably parallel to a central longitudinal axis of the coupling device.

In a possible variant of the invention, the intermediate coupling flange and the flange element are designed as a uniform flange, i. H. formed in one piece, in which case the torque is transmitted between the clutch hub and one-piece flange via the interposed shear body.

According to a preferred embodiment, the clutch hub and the intermediate coupling flange together form a cavity in which a shear body according to the invention can be arranged, on which the clutch hub can be inserted at an interface between the clutch hub and the intermediate coupling flange. As a result, a pluggable interface can be provided without complex design measures.

According to a preferred embodiment, the clutch hub and the intermediate coupling flange together have a plurality of recesses, in each of which a shear body according to the invention is arranged, wherein the recesses in pairs each form a circular cavity and the shear bodies are each formed with a cylindrical outer circumferential surface. Due to the symmetrical design, a precise alignment of the clutch hub with respect to the intermediate coupling flange or the shear body with respect to the clutch hub is not required, and the assembly is simple and quick to carry out and influence of the alignment of these coupling components to a rotational stiffness can be excluded.

According to the invention, the intermediate coupling flange are connected to the flange element, and the coupling hub is inserted in the axial direction in the intermediate coupling flange.

According to one embodiment, the holding element is arranged between the intermediate coupling flange and the flange element. As a result, the assembly of the clutch hub can be made very simple, since no further coupling components must be provided in the region of the hub. In addition, in this integration of the retaining element at the interface between the intermediate coupling flange and the flange element, the coupling device is small, since the retaining element can be provided without additional space in the axial direction within a cavity defined by the flange element.

According to one embodiment, at least one shearing body is centered and fixed on the holding element. Then, the holding element is centered on the intermediate coupling flange and fixed. Then the intermediate coupling flange is centered and fixed to the flange element. Then, the clutch hub is inserted into the intermediate coupling flange and thereby guided by the shear body, in particular an O-ring of the shearing body. In this order, it is ensured that no assembly step more than two coupling components aligned with each other and must be brought to bear, whereby the assembly is carried out with two hands by a single person.

In the following drawing figures, the invention will be described in more detail with reference to embodiments. In this case, not all reference numerals in each of the drawing figures are repeated, but identical or at least functionally identical elements are always provided with the same reference numerals, unless otherwise stated.

Show it:

1a Figure 3b is a perspective drawing of a coupling device according to an embodiment of the invention, looking at a hub of the coupling device in an assembled state and in an axially offset hub state;

2a , b in the perspective view of 1a . 1b in each case a representation of the coupling device for the two states;

3a , b is a perspective line drawing and a partial section of components of the coupling device in an assembled state;

4 in a perspective view an illustration of the coupling device with respect to a flange of the coupling device in a state with axially offset hub;

5 a group drawing of the main components of the coupling device in an exploded view;

6 in the perspective view of 4 a partial view of the coupling device without flange element;

7a in a perspective view a partial representation of a flange in connection with a holding element of the coupling device;

8th a sketch detail detail of a single shear body of the coupling device in an operative arrangement between a hub and a Kupplungszwischenflansch the coupling device;

9 in the perspective view of 6 a partial view of the coupling device without a Kupplungszwischenflansch the coupling device;

10a in each case in a side view a single shear body of the coupling device in a state mounted on a holding element;

11 in a perspective view, a partial view of a holding element of the coupling device, on which six shear body are arranged by means of connecting elements;

12 a detailed perspective view of a single arranged on a holding elements of the coupling device shear body, for ease of understanding without showing a connecting means;

13 in a perspective view a partial view of a holding element of the coupling device; and

14 in a perspective view an illustration of a coupling according to the prior art.

In the 1a is a coupling device 1 with a clutch hub 10 and a flange member 50 shown. The coupling device 1 is rotationally symmetrical and extends in a radial direction (y-direction) further than in an axial direction (x-direction) along a central longitudinal axis M of the coupling device 1 , The flange element 50 has a flexible element 51 on, in particular a rubber element 51 , by means of which ensures a torsional elastic property of the coupling device and by specific design of the element 51 can also be adjusted. Between the two coupling elements 10 . 50 is a coupling intermediate flange 30 arranged, which together with the clutch hub 10 forms an interface on which shear body 10 are arranged. For this purpose, have the clutch hub 10 and the intermediate coupling flange 30 each in a plane perpendicular to the x-direction semicircular recesses 11 on which pairs together a circular cavity for each shear body 20 form. The clutch hub 10 can in the intermediate coupling flange 30 be plugged and the coupling between the clutch hub 10 and the intermediate coupling flange 30 can over the shear body 10 be ensured, in particular by positive locking.

In the 1b is the clutch hub 10 not in the intermediate coupling flange 30 plugged. The shear bodies 20 However, they are already mounted, thanks to a barely visible retaining washer 40 is realized, between the intermediate coupling flange 30 and the flange member 50 is arranged and the shear body 40 on the flange element 50 facing side of the intermediate coupling flange 30 fixed.

In the 2a and 2 B is shown that the flexible element 51 as a rubber element between two parts of the flange element 50 may be provided, in particular can be vulcanized. In this rubber element 51 a desired torsional elasticity can be adjusted. The shear bodies 20 mainly serve the torque transmission between the clutch hub 10 and the intermediate coupling flange 30 ,

In the 3a and 3b are each only the clutch hub 10 , the intermediate coupling flange 30 and the retaining element 40 with sheared bodies fixed on it 20 shown. The holding element 40 has the shape of a ring-like disc (flat ring) and is on the intermediate coupling flange 30 screwed. In this case, first, the retaining element 40 to the intermediate coupling flange 30 be screwed to then the shear body 20 on the holding element 40 to fix, or optionally, the retaining element 40 already with it fixed Scherkörpern 20 at the intermediate coupling flange 30 be fixed. The screw has proven to be advantageous, but is replaceable by other types of connections. The shear bodies 20 are cylindrical, piston-shaped and each in a through respective recesses 11 . 31 on the clutch hub 10 and the intermediate coupling flange 30 formed cylindrical cavity. The shear bodies 20 each have an internally threaded bore, via which they on the holding element 40 are fixable, as in connection with the 10a , b, c and 13 described in more detail.

In the 4 is the coupling device 1 with a view of the flange element 50 shown, which in this variant at least partially as a membrane 53a is formed, in particular of a high-strength preferably metallic spring material. This membrane 53a is thin-walled and therefore also designed to compensate for an axial offset. In principle, by the coupling device 1 Advantages such as easier assembly or extended mounting options can be achieved.

The connector according to the invention allows a certain axial offset, z. B. to compensate for installation length tolerances. The axial reaction force depends on the friction of the shear body during operation 20 from the torque. Possible is z. B. a certain balance of axial thermal expansion in the drive train in the (almost torque-free) warm-up phase. The through the shear body 20 compensatable axial offset can z. B. in the range of 0.5 to 5 mm, preferably 1 to 3 mm, more preferably 1 to 1.5 mm.

The membrane 53a is optional. If no diaphragm is needed for axial compensation, a completely rigid flange element is sufficient 50 ,

In the 5 is more clearly shown how the recesses 11 . 31 can be executed to one for the shear body 20 to form a suitable cavity. The clutch hub 10 has a first interface 12 and a second interface 13 on, with the second interface 13 a disc-like part 13a has, on which recesses 11 for the shear body 20 are introduced. The recesses 11 are on an outer circumferential surface of the disc-like part 13a provided and radially clear relative to a hub main body 10a spaced. The recesses 11 . 31 can easily in each case in solid material of the clutch hub 10 and the intermediate coupling flange 30 be introduced, for. B. by means of a milling cutter, which moves radially into the workpiece. The clutch hub 10 therefore, does not necessarily need to be constructed differently than previously known hubs so that the option exists of having the clutch hub 10 from a larger batch z. B. produced hub, which can save costs.

In the variant shown are corresponding to the number of through the recesses 11 . 31 to be formed cavities six cylindrical, plug-like shear body 20 provided, which are each formed identically. The intermediate coupling flange 30 has a first interface 32 which points radially inward and is formed by an inner circumferential surface. The intermediate coupling flange 30 has a second interface which points at least approximately in the x-direction and which in 6 with the reference number 33 is shown. The intermediate coupling flange 30 has a centering 35 on, on which the holding element 40 with respect to the intermediate coupling flange 30 can be centered.

The holding element 40 has a first interface 42 which points at least approximately opposite to the x-direction. The holding element 40 has a second interface which points at least approximately in the x-direction and which in 6 with the reference number 33 is shown. The flange element 50 has a first interface 52 which is intended, with the second interface of the intermediate coupling flange 30 to be coupled. The flange element 50 has a second interface 53 which points at least approximately in the x-direction and the membrane 53a includes.

In the 6 is the second interface 33 of the intermediate coupling flange 30 shown. Furthermore, a centering 34 shown, namely two dowel pins attached to the second interface 33 are provided. About the dowel pins 34 can the intermediate coupling flange 30 on the flange element 50 be centered. The holding element 40 is also on the part of the second interface 43 shown. The shear bodies are on the holding element 40 fixed by screws, and for this purpose are in the holding element 40 guides 41a introduced, in particular through hole, which symmetrically on a bolt circle on the holding element 40 are arranged. Furthermore, in the retaining element 40 mounting means 41b , in particular provided through-holes.

The shear bodies 20 are preferred over the screws with axial and radial play on the holding element 40 held, which facilitates the threading of the connector. Under torque position the shear body 20 by itself between the positive flanks of the intermediate coupling flange 30 and the clutch hub 10 , The material of the shear body 20 (eg fiber-reinforced plastic) prevents metallic rattling and / or adhesive seizing, as they might occur in metal-metal contact.

In the 7a is the retaining element 40 in one on the intermediate coupling flange 30 centered position shown by the centering 44 , in particular dowel pins, is defined, but without already using screws with the intermediate coupling flange 30 to be connected. In the 7b is one of the dowels 44 shown in detail. It is a through the holding element 40 plugged bolts.

In the 8th is shown schematically, in which way the shear body 20 can be charged. Two curved arrows indicate that between the flange element 50 and the clutch hub 10 a torque is applied, which over the shear body 20 , of which only one is shown as an example, can be transmitted. By the two arrows facing each other is the area of the contact surface between the shear body 20 and the clutch hub 10 and the intermediate coupling flange 30 emphasized in which predominantly a compressive force is exerted on the shear body. The outer cylindrical surface of the shear body 20 Accordingly, it is stressed especially on opposite surface portions to pressure, which close to the interface between the clutch hub 10 and the intermediate coupling flange 30 lie. Opposite a through a center P of the shear body 20 and tangential to the outer circumferential surface of the clutch hub 10 extending tangent T extend the main directions of force of the shear body 20 acting compressive force at an angle, so that within the shear body 20 Shearing forces occur. In the context of the invention it has been found that these shearing forces of the shear body 20 especially if it consists of a fiber composite material.

In the 9 is shown that the shear body 20 the holding element 40 (Flat ring) in the radial direction with respect to a central longitudinal axis M of the clutch hub 10 or the coupling device protrudes inwardly and outwardly and is arranged centrally with respect to the width of the circumferential flat ring strip. Here is every shear body 20 in a guided tour 41a , in particular through hole on the holding element 40 centered and fixed. In assembly means 41b Screws or the like fastening means may be provided to the holding element 40 to fix on the intermediate coupling flange.

In the 10a is a sectional view of the retaining washer 40 one of the shear bodies 20 shown. The shear body 20 has a cylindrical outer circumferential surface 26 on, the rotationally symmetric to a central longitudinal axis m of the shear body 20 is aligned. At the of the retaining disk 40 pointing away end face, the shear body 20 a chamfer or a radius 22 on what facilitates insertion of a clutch hub on the shear body. By the two arrows pointing towards each other is indicated that the shear body 20 in the retaining disk 40 is centered by a part of the shear body 20 through the retaining washer 40 is guided and the shear body 20 on the retaining disc 40 aligns. Due to the rotational symmetry of the shear body 20 This centering z. B. be realized by a cylindrical extension, as in 12 and 13 shown. About a connecting means S is the shear body 20 on the retaining disc 40 fixed. The cylindrical outer circumferential surface 26 is interrupted by a groove in which an O-ring 25 is arranged. Like in the 10b shown is the groove 21 at least approximately in the middle of the cylindrical outer circumferential surface 26 provided with respect to their extension in the direction of the central longitudinal axis m.

In the 11 is the preassembled for a further assembly assembly consisting of the holding element 40 and the shear bodies 20 shown.

In the 12 is shown how a shear body 20 on the holding element 40 can be centered. The shear body 20 is integral with a neck or extension 24 formed, in which a bore 23 for fixing the shear body 20 on the holding element 40 is provided. The hole 23 is preferably designed as a blind hole with an internal thread. In the holding element 40 is one to the approach 24 corresponding leadership 41a , in particular provided through hole. The approach 24 is opposite the main body of the shear body 20 by an amount that is about the thickness of the retaining element 40 equivalent.

In the 13 is a shear body 20 from one side to the neck 24 shown. The rotationally symmetrical design of the shear body 20 , especially the approach 24 is clearly visible.

In the 14 is a known coupling 1A shown by a hub 10A with a first interface 12 and a second interface 13 as well as through a membrane 30A and a flange 50A is formed. This clutch 1A is not pluggable. The hub 10A is with the membrane 30A rigidly connected. An axial offset can only by the diaphragm made of spring material 30A be compensated. The application and the mounting options of this coupling are limited, z. B. it can not be used in so-called bell installations.

By the invention, the mounting possibility can be improved in particular by the shear body. The shear bodies can ensure the dual function of axial balancing and mating during assembly. At the same time can be provided by the fixation of the shear body on the retaining disk an easy-to-use coupling device, which is also very simple.

LIST OF REFERENCE NUMBERS

1

coupling device

10

clutch

10a

Hub main body

11

recess

12

Interface to a machine element unequal to the coupling device, in particular to a shaft

13

Interface to a flange element such. B. a flywheel connection

13a

radially outwardly facing lateral surface

13b

disc-shaped part of the clutch hub

20

shear body

21

groove

22

chamfer

23

drilling

24

approach

25

O-ring

26

Lateral surface, in particular cylindrical outer circumferential surface

30

Kupplungszwischenflansch

31

recess

32

first interface

33

second interface

34

Centering for the intermediate coupling flange with respect to the flange element

35

Centering for the holding element with respect to the intermediate coupling flange

40

retaining element

41a

Guide for shear body, in particular through hole

41b

Mounting means, in particular through hole

42

first interface

43

second interface

44

Centering for the holding element with respect to the intermediate coupling flange

50

flange

51

rubber element

52

first interface

53

second interface

53a

Membrane made of spring material

M

Center longitudinal axis of the coupling device

m

Center longitudinal axis of a shear body of the coupling device

P

Center of a shear body

S

Connecting means, in particular screw

T

Tangent through the center of a shear body and tangential to the outer surface of the clutch hub

1A

Coupling according to the prior art

10A

Hub according to the prior art

30A

Membrane according to the prior art

50A

as a diaphragm preferably made of high-strength spring material flywheel connection according to the prior art

Claims (15)

Clutch hub ( 10 ) for a torsionally flexible coupling device ( 1 ) for torque transmission, with a first interface ( 12 ) for coupling to a machine element, in particular to a shaft, and a second interface ( 13 ) for coupling to a flange element ( 50 ) of the coupling device ( 1 ), characterized in that the clutch hub ( 10 ) in the axial direction can be plugged by at the second interface ( 13 ) a recess ( 11 ), in which a shear body ( 20 ) for transmitting a torque between the flange element ( 50 ) and the clutch hub ( 10 ) can be arranged. Clutch hub ( 10 ) according to claim 1, characterized in that the recess ( 11 ) on a radially outwardly facing lateral surface of the clutch hub ( 10 ) is arranged. Shear body ( 20 ) for a torsionally flexible coupling device ( 1 ) for transmitting torque, characterized in that it is designed to be arranged in a recess ( 11 ; 31 ) between a clutch hub ( 10 ) and a coupling intermediate flange ( 30 ) of the coupling device ( 1 ) Shear forces. Shear body ( 20 ) according to claim 3, characterized in that it has a parallel to a central longitudinal axis of the shearing body ( 20 ) formed lateral surface is formed. Shear body ( 20 ) according to claim 3 or 4, characterized in that it is formed like a plug and consists of a fiber composite material. Shear body ( 20 ) according to claim 5, characterized in that it is pultruded, or that it consists of pre-wound, high-strength fabric and thermosetting resin and the fiber arrangement for the most part at least approximately parallel to a central longitudinal axis (m) of the shear body ( 20 ) is aligned. Coupling intermediate flange ( 30 ) for a torsionally flexible coupling device ( 1 ) for torque transmission, with a first interface ( 32 ) for connection to a clutch hub ( 10 ) and a second Interface ( 33 ) for connection to a flange element ( 50 ) of the coupling device ( 1 ), characterized in that the intermediate coupling flange ( 30 ) is adapted to a clutch hub ( 10 ) in the axial direction pluggable, by at the first interface ( 32 ) a recess ( 31 ), in which a shear body ( 20 ) for transmitting a torque between the flange element ( 50 ) and the clutch hub ( 10 ) can be arranged. Retaining element ( 40 ) for a torsionally flexible coupling device ( 1 ) for torque transmission, characterized in that it has a first interface ( 42 ) for connection to a coupling intermediate flange ( 30 ) and a second interface arranged serially in an axial direction ( 43 ) for connection to a flange element ( 50 ) of the coupling device ( 1 ) and for positioning of a shear body ( 20 ) at the first interface ( 42 ) is trained. Retaining element ( 40 ) according to claim 8 with a shear body ( 20 ) according to one of claims 3 to 6, characterized in that the shear body ( 20 ) on the holding element ( 40 ) is arranged, that an outer circumferential surface of the shear body ( 20 ) the retaining element ( 40 ) projects inwardly in a radial direction inwardly and outwardly. Torsionally flexible coupling device ( 1 ) for torque transmission, with a clutch hub ( 10 ), a coupling intermediate flange ( 30 ) and a flange element ( 50 ), characterized in that the torsionally elastic coupling device ( 1 ) in the axial direction at an interface between the clutch hub ( 10 ) and the intermediate coupling flange ( 30 ) is pluggable. Torsionally flexible coupling device ( 1 ) according to claim 10, characterized in that the clutch hub ( 10 ) and the intermediate coupling flange ( 30 ) together form a cavity in which a shear body ( 20 ) can be arranged according to one of claims 3 to 6, on which the clutch hub ( 10 ) is pluggable. Torsionally flexible coupling device ( 1 ) according to claim 10 or 11, characterized in that the clutch hub ( 10 ) and the intermediate coupling flange ( 30 ) together a plurality of recesses ( 11 ; 31 ), in which in each case a shear body ( 20 ) is arranged according to one of claims 3 to 6, wherein the recesses ( 11 ; 31 ) in pairs each form a circular cavity and the shear bodies ( 20 ) are each formed with a cylindrical outer circumferential surface. Torsionally flexible coupling device ( 1 ) according to one of claims 10 to 12, characterized by a coupling hub ( 10 ) according to claim 1 or 2, a coupling intermediate flange ( 30 ) according to claim 7, and a holding element ( 40 ) according to claim 8 or 9. Use of a torsionally flexible coupling device ( 1 ) according to one of claims 10 to 13 in a drive train between a motor and a generator. Use according to claim 14, characterized in that the coupling device ( 1 ) is in the assembled state of the drive train within a generator bell of the generator.

Images