Torque transmission device and driven flange of torque transmission device

By using the design of the internal toothed insert and the riveted connection in the torque transmission device, the problems of manufacturing and installation complexity and high cost in the prior art are solved, and the efficiency of torque transmission and the effect of saving structural space is achieved.

CN120140419APending Publication Date: 2025-06-13SCHAEFFLER TECHNOLOGIES AG & CO KG
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202410689008.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-12-13
Filing Date
2024-05-30
Publication Date
2025-06-13

AI Technical Summary

Technical Problem

The existing torque transmission devices have complexity and high cost problems during manufacturing and installation, and it is difficult to effectively save axial structural space.

Method used

An insert using an internal toothed portion is placed into the sleeve, and is connected to the shape of the second coupling element through the internal toothed portion to transmit the driving torque. At the same time, the welded connection part is cancelled, and the riveted connection part is adopted, the housing and driven flange are constructed into one piece to save material and manufacturing costs.

Benefits of technology

The simple manufacturing and installation of the torque transmission device is realized, which reduces costs, and effectively saves axial structural space and improves the efficiency of torque transmission.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120140419A_ABST
    Figure CN120140419A_ABST
Patent Text Reader

Abstract

The invention relates to a torque transmission device (1) for transmitting a drive torque between a first coupling element (16) and a second coupling element (17), in which a torsional vibration damper (4) is functionally arranged between an input (2) and an output (3), and in which a sleeve (15) of an output flange (10c, 12) is provided with an insert (27).
Need to check novelty before this filing date? Find Prior Art

Description

Field of the Invention

[0001] The present invention relates to a torque transmission device according to the preamble of claim 1. Background Art

[0002] In the drive train of a motor vehicle, the task of a torque transmission device is to transmit the torque generated by a drive machine as low-vibration as possible from an input part to a driven flange that is effectively connected to a transmission. A torque transmission device with such a driven flange is known from DE 20 2017 124 924 A1. Summary of the Invention

[0003] The object of the present invention is to provide a torque transmission device that can be manufactured and installed simply and cost-effectively.

[0004] This object is achieved by the subject matter of the claims herein.

[0005] According to the present invention, an insert provided with an internal tooth part is placed in a sleeve, wherein the driven flange is associated with a second coupling element in a form-fitting manner and transmits a driving torque. The tooth part is preferably introduced into the insert by a forming process. The insert is advantageously also used, for example, to keep the wall thickness of a housing small and advantageously influences its forming properties, quality, and material distribution. Furthermore, on the insert, a form-fitting connection between the sleeve and the coupling element for transmitting a high torque can be advantageously prepared and designed by a larger wall thickness and the teeth of the tooth part. The insert is selectively held in the sleeve by a press fit, a form-fitting connection, and by a material connection part or by a combination of each of the measures. The form-fitting connection between the sleeve and the coupling element is preferably formed by a tooth part, for example, by a wedge tooth part or a spline. The sleeve and the insert and their tooth parts are preferably manufactured by forming or cold forming. The second coupling element has an external tooth part, wherein the internal tooth part is effectively connected to the second coupling element via the external tooth part.

[0006] A design of the present invention is that the driven flange has a disk body including an inner cylindrical front extension. The front extension is preferably inserted axially during the cold forming of the sleeve and forms the sleeve, which extends from the root of the disk body of a unit composed of a housing section and the driven flange. When the driven flange is installed on the torque transmission device, the front extension / sleeve enters the torque transmission device inward in the direction of the input flange on the primary side, so that axial structural space can be saved. Alternatively, the front extension can also extend in the opposite axial direction, i.e., in the direction of the transmission. The front extension for receiving the insert can be advantageously introduced during the cold forming of the driven flange.

[0007] According to a design solution of the present invention, the housing and the driven flange are integrally formed as a single piece with the same material. The advantage of the present invention is that the welded connection known from the prior art is eliminated. Thereby, the housing can be manufactured energy-efficiently and inaccuracies caused by thermal deformation due to heat input can be avoided. This solution also no longer requires axial structural space for the welded connection and a riveted connection can be used. A further improvement of the design solution of the present invention is that the housing has a housing section fixed to the cover, and the housing section is preferably formed by shaping a steel plate. The housing section and the driven flange are integrally formed as a single piece with the same material to save material and manufacturing costs. "Integrally formed with the same material" means that the component is a single piece without separation parts and joint parts. The material structure, preferably a steel plate, is not interrupted at the transition of the component.

[0008] According to another design solution of the present invention, the unit formed by the driven flange and the housing section is formed in the shape of an annular disk with at least one step, wherein the output part is centered radially relative to the input part by means of the step of the housing section with respect to a component axially extending from the input flange. Since the components of the output part have the maximum mass of the torque transmission device, the torque transmission device can be better centered at this time. The output part is preferably connected to at least one component that is connected to the first coupling element and axially extends from the input flange, so that the axial distance between the input part and the output part is at least partially bridged by the axially extending component. Through one or more steps, the housing section is axially inserted from the spring chamber in the direction of the primary side (towards the input flange) along the axis, so that the axial distance therebetween is reduced and centering becomes simple, the structural space is reduced and the sealing of the spring chamber to the radial interior is simplified. A good basis for centering is obtained by the fact that the components of the output part are connected to at least one component that is connected to the first coupling element and axially extends from the input flange. This component is preferably configured as an annular component and is a plate-shaped formed part, on which a shape matching the current structural space requirements can be advantageously realized. In addition, this component can be designed as a compensating disk, and the radial and axial distances relative to the secondary components can be compensated by means of the compensating disk.

[0009] One design of the present invention lies in the overload clutch between the housing and the driven flange. The technical term for the overload clutch is also called a torque limiter. The torque limiter involved is a friction clutch, in which different friction pairs are pressed against each other in a force-friction fit connection until a defined starting torque is reached. By means of the torque limiter, damage caused by high and sudden torque peaks in the overload clutch and in the drive train is prevented. The torque limiter works according to the principle of a slip clutch, in which after the starting torque is reached, the input part and the output part of the overload clutch are disengaged from each other in the force-friction fit connection and, by means of friction control, move relative to each other in a swinging or rotational motion about the axis of rotation. The input part of the overload clutch according to the invention is formed by the housing of the torsional vibration damper or by a section of the housing, wherein the housing is a component of the secondary side of the torque transmission device. The output part of the overload clutch is the driven flange.

[0010] The technical term for the input part of the torque transmission device is usually also called the primary side and the output part of the torque transmission device is called the secondary side. The input part functionally corresponds to the drive part and is effectively connected thereto, and the output part functionally corresponds to the driven part and is effectively connected thereto. The drive part is constituted by a drive machine or has a drive machine. The driven part can have a clutch and a transmission or other transmission elements and is ultimately assigned to the driven wheels. During normal driving operation of the vehicle, a drive torque generated by the drive machine is applied on the primary side, i.e., the input part is connected to the drive side. The secondary side is the driven side of the torque transmission device and has transmission elements, via which the torque is conducted from the torque transmission device to the transmission elements on the driven side. The input side faces the input part or the drive part. The output side faces the output part or the driven part.

[0011] "Functionally" means that the components or members are effectively connected to each other via effective connection parts. The effective connection parts are provided, for example, by members, structural elements or components connected to one of the members and / or structural elements. The effective connection parts are provided, for example, via bolted connections, spring devices or overload clutches, flanges or elements that engage with each other form-fittingly or force-transmittingly.

[0012] The torsional vibration damper is mainly formed by the input flange, the spring device and the part of the housing connected to the driven flange. The spring device is functionally arranged between the input part and the output part, i.e., between the input flange and the housing, such that the spring device forms an effective connection for attenuating vibrations between the input part and the output part. Here, the input flange and the housing are supported on the spring device in a torsionally restricted manner relative to each other about the axis of rotation of the torque transmission device by means of the flange wings and the support structure for the springs of the spring device against the spring action / spring force of the spring device.

[0013] The spring device preferably consists of a plurality of springs or spring groups arranged around a rotational axis, and the springs or spring groups are preferably embodied as cylindrical tension springs, arc-shaped tension springs, or inserted helical springs. The springs of the spring group are preferably inserted concentrically into one another. The spring chamber is encapsulated by an annular molding on the housing and / or on the cover of the housing and is selectively sealed radially inwardly in the direction of the rotational axis by one or more seals or friction linings. This design is particularly suitable when the spring chamber is filled with grease. Preferably, a plurality of springs are arranged distributed on the circumference around the rotational axis in the housing. The flange wings of the input flange abut against one end of the spring. The spring is supported at the other end on a suitable support structure, preferably formed into the housing. In addition, the spring can also be guided by a sliding housing made of plastic or sheet metal.

[0014] Here, the input part consists of a component or an assembly. According to the invention, the input part is assigned to the primary side and has, for example, an input flange as a single part or a pulse sensor fixed to the input flange with an input flange and a sensing mechanism as an assembly. The input part is functionally connected to the first coupling element on the drive side. The coupling element is, for example, a screw, a flat plate, or a flywheel of an internal combustion engine.

[0015] The output part is configured as an assembly. According to the invention, the output part is here formed by a housing including a cover and a spring chamber as an assembly, and alternatively can also include other components and structural elements. According to the invention, the output part also includes a driven flange and an overload clutch.

[0016] According to the subject matter of the invention, the overload clutch forms an effective connection between the torsional vibration damper and the driven flange, i.e., between the housings or between the housing sections of the housing. The driven flange is preferably connected in a form-fitting manner via a sleeve to a coupling pin, for example, embodied as a transmission shaft pin or a member with a different embodiment, a coupling element of the subsequent drive train.

[0017] Radially, a rotational axis axially extended perpendicular to an arbitrary radial plane, i.e., perpendicular to the rotational axis of the torque transmission device, is vertically penetrated. The rotational axis extends axially at any number of axial planes intersecting at the rotational axis. During driving operation, the torque transmission device rotates around the rotational axis and the input part and the output part oscillate relative to one another to attenuate vibrations.

[0018] Unlike the known standard design of torque transmission devices or torsional vibration dampers of the prior art, in which the mass of the housing and the spring are distributed to the primary side, i.e. fixed there, and a flange with flange wings is distributed to the secondary side and operatively connected to the output flange, in the torque transmission device or torsional vibration damper according to the invention the flange is distributed to the primary side and the housing is located in the secondary section. Thus, the flange that previously interacted with the spring device and was arranged in the secondary section of the damper is now the input flange and is connected to the output, for example to the crankshaft of an internal combustion engine or to an electric motor, etc. As a result, the spring device that bears the mass of the housing and the function of the torsional vibration damper is no longer connected to the primary side, but is accommodated in the secondary section.

[0019] The overload clutch is formed by at least two axial supports, at least one friction lining, at least one preload element and at least one friction surface. The axial supports are configured in the shape of an annular disk and are configured to be curved in the cross-sectional configuration. The axial supports are axially opposite to each other at the annular gap. At least one of the axial supports is fixed to the driven flange. Alternatively, two axial supports are fixed to the driven flange. Alternatively, one of the axial supports is configured in one piece with the same material as the driven flange.

[0020] The housing section, which is a component of the overload clutch and is constructed in the form of a disk, has at least one friction surface, preferably two friction surfaces. The two friction surfaces are axially separated from each other. The friction surface is provided for friction contact with another friction pair, for example, for contact with a friction lining. The friction lining is a lining made of paper, a fabric, a metal material or a plastic, or a combination of the aforementioned materials, or is mechanically or chemically applied. The friction lining is constructed, fixed or applied to the friction lining carrier in a form-fitting or materially connected manner or is constructed, fixed or applied to the friction disc as in the design of the present invention. The friction lining composed of paper is preferably used in dry applications, that is, in applications that are not lubricated with grease or with an oil bath.

[0021] A friction lining or a plurality of friction linings, a friction surface and a preload element are arranged concentrically relative to one another and to the axis of rotation in an annular gap between the axial supports in the axial direction and are preloaded relative to one another in the axial direction. Each friction lining is held on one of the axial supports or the preload element of the overload clutch in a friction connection, a force fit connection, a material fit connection or a form fit connection relative to the driven flange. The friction lining is preloaded axially relative to the friction surface of the housing section.

[0022] One embodiment of the invention provides that the axial support and the output flange are connected to one another by means of at least one riveted connection, preferably by means of a plurality of riveted connections distributed around the circumference of the axis of rotation. The riveted connections can be produced simply and cost-effectively.

[0023] Another design of the present invention lies in that the axial supports directly abut against each other in the surface section where they are connected to the driven flange. Here, one of the axial supports abuts against one side of the driven flange at the rear, preferably on the side facing the input flange. An annular gap is formed between the axial supports in the region of the coupling fixing part, so that other components of the overload clutch are installed therein. By this measure, the axial structural space can be kept very small. Alternatively, it is arranged that one of the axial supports is formed by an annular section that is integrally formed with the driven flange. By this measure, the number of individual components of the overload protection part is reduced.

[0024] One design of the present invention lies in the overload clutch of the torque transmission device, wherein the preloading element is formed by one or more axially acting compression springs, preferably by disc springs, and is preferably supported on one of the axial supports. Description of the Drawings

[0025] The present invention will be described in detail below based on a plurality of embodiments not shown to scale.

[0026] Figure 1 A longitudinal section along the rotation axis 21 of the torque transmission device 1 is shown for transmitting the driving torque from the first coupling element 16 to the second coupling element 17.

[0027] Figure 2 Another embodiment of the torque transmission device 60 for transmitting the driving torque from the first coupling element 16 to the second coupling element 17 is shown in a longitudinal section along the rotation axis 21. Detailed Description of the Invention

[0028] Figure 1 – Figure 1 A longitudinal section along the rotation axis 21 is shown for the torque transmission device 1 that transmits the driving torque from the first coupling element 16 to the second coupling element 17. The torque transmission device 1 is provided with an input part 2 (in the primary section) assigned to the first coupling element 16 on the drive side and an output part 3 (in the secondary section) assigned to the second coupling element 17 on the driven side, as well as a torsional vibration damper 4. The input part 2 is formed by the input flange 8 of the torsional vibration damper 4. The torsional vibration damper 4 consists of the input flange 8, at least two spring devices 7, and at least the housing 10.

[0029] The input flange 8 of the primary section is fixed to a first coupling element 16 (not shown in detail) by means of a plurality of screws 29 distributed circumferentially around the axis of rotation 21. Since only one of the screws 29 can be seen in the schematic view. The first coupling element 16 is, for example, a coupling flange of an electric drive device or a flywheel of an internal combustion engine. The input flange 8 abuts against the respective spring device 7 with a flange wing 9 acting on the spring device 7 on the input side, i.e., the input flange 8 has the same number of flange wings 9 as the number of spring devices 7. Since only one of the flange wings and only one spring device 7 are shown in the schematic view in Figure 1 . The input flange 8 abuts against the spring ends of the helical springs 32 of the spring device 7 with the flange wings 9 respectively. The spring ends are opposite to the spring ends of the helical springs 32 supported on the housing 10 (not visible in the schematic view). The assembly 5 of the input part 2 in the primary section is formed by the input flange 8 and a sensing ring 33 of an induction mechanism connected to the input flange 8 (not shown further). The sensing ring 33 is connected to the input flange 8 by means of a riveted connection 34.

[0030] The assembly 6 of the output part 3 in the secondary section is provided with a housing 10, at least one spring chamber 11 for accommodating the spring device 7, and a driven flange 10c connected to a housing section 10a of the housing 10. The housing section 10a and the cover 13 form the housing 10. The cover 13 and the housing section 10a are materially connected to each other by a weld 30 at the radially outer edge of the housing section. The housing section 10a has an arcuate portion 10b with a groove-like structure in its radially outer section. The axially opposite sections of the cover 13 of the housing 10 are arcuate in a groove-like manner at this location, so that an axially and radially restricted spring chamber 11 is formed by the cover 13 and the housing section 10 at this location. A spring device 7 is installed in the spring chamber 11, and in this case, the spring device is formed by a helical spring 32 and a sliding housing 31. The helical spring 32 is supported on the housing 10 at its end extending into the schematic view and not visible in the schematic view in a circumferential direction around the axis of rotation 21 or tangentially to the circumferential direction. Based on the schematic view, only one of the at least two spring devices 7 of the torsional vibration damper 4 can be seen. The spring chamber 11 is protected and / or sealed radially inwards by two rings 35 and 36. A ring 35, for example, a friction ring, is clamped axially between the cover 13 and the input flange 8 under the action of a disc spring 37. Another ring 36 is axially supported between the input flange 8 and the housing section 10a. It can be provided that a grease (not shown) is provided in the spring chamber 11.

[0031] The housing 10 or the housing section 10a and the driven flange 10c are integrally formed with each other in one piece and of the same material. That is, there is no separating part or connecting part between the components commonly manufactured from a slab. The housing 10 has a housing section 10a fixed to the housing 13, wherein the housing section 10a and the driven flange 10c are integrally formed with each other in one piece and of the same material. The sleeve 15 is provided with an insert 27 inserted into the sleeve 15, and the insert 27 includes an internal tooth portion 26, and the insert 27 is effectively connected to the second coupling element 17 via the internal tooth portion 26.

[0032] The second coupling element 17 has an external tooth portion 38, wherein the internal tooth portion 26 is effectively connected to the second coupling element 17 via the external tooth portion 38.

[0033] The driven flange 10c is effectively connected to the second coupling element 17 via the sleeve 15, and the second coupling element 17 is formed by a pin 28. The internal tooth portion 26 engages in a form-fitting manner into the external tooth portion 38 of the pin 28 to transmit the driving torque.

[0034] The driven flange 10c has a disk body 20 including an internally cylindrical front extension 22. The front extension 22 is arranged concentrically with respect to the axis of rotation 21 of the torque transmission device 1 and extends axially in the direction of the input section 2 starting from a root 23 constructed on the disk body 20. The insert 27 is received in the front extension 22.

[0035] In a method not shown, the assembly 6 of the output section 3, the housing 10, and the spring device 7 are slipped onto the input section 2 such that the assembly 6 is centered radially with respect to the axis of rotation 21 on one or more members 25 during the slipping-on. The housing section 10a is provided with at least one ribbed step 24 in the shape of an annular disk, and the output section 3 is centered radially with respect to the input section 2 by means of the step with respect to the members 25, and the members 25 axially project in the direction from the input flange 8 towards the driven flange 10c.

[0036] One or more members 25 are preferably annular disks 39 angled in terms of configuration, and the annular disks 39 have a radially outer guiding section 40, and the guiding section is provided with a plurality of through holes 41 distributed in the circumferential direction on an annular section abutting against the input flange 8, and the screws of the input flange 8 fixed to the first coupling element 16 pass through the through holes for engagement.

[0037] Figure 2 – The torque transmission device 60 is provided with an input section 2 (in the primary section) assigned to the first coupling element 16 on the drive side and an output section 3 (in the secondary section) assigned to the second coupling element 17 on the driven side, and an overload clutch 50, and the overload clutch has a torsional vibration damper 4. The input section 2 on the primary side is formed by the input flange 8 of the torsional vibration damper 4.

[0038] The input flange 8 of the primary section is fixed to a first coupling element 16, not shown in detail, by means of a plurality of screws 29 distributed circumferentially around the axis of rotation 21. Since only one of the screws 29 can be seen in the schematic illustration. The first coupling element 16 is, for example, a coupling flange of an electric drive device or a flywheel of an internal combustion engine. The input flange 8 abuts against the respective spring device 7 with a flange web 9 acting on the spring device 7 on the input side, i.e., the input flange 8 has the same number of flange webs 9 as the number of spring devices 7. Since only one of them is illustrated in the schematic illustration in Figure 2 . The input flange 8 abuts with each flange web 9 against a spring end of a helical spring 32, the spring end being opposite to the spring end of the helical spring 32 supported on the housing 10. The assembly 5 of the input part 2 in the primary section is formed by the input flange 8 and a sensing ring 33 of an induction mechanism connected to the input flange 8, not shown further. The sensing ring 33 is connected to the input flange 8 by means of a riveted connection 34.

[0039] The torsional vibration damper 4 is formed by the input flange 8, the spring device 7 and at least by the housing 10.

[0040] The housing section 10a and the cover 13 form the housing 10. The cover 13 and the housing section 10a are materially connected to each other at the radially outer edge 23 by means of a weld 30. The housing section 10a is configured as a toroidal disk bent in a longitudinal section along the axis of rotation 21. The housing section 10a has an arcuate portion 10b with a grooved configuration in its radially outer section. The axially opposite sections of the cover 13 of the housing 10 are arcuate in a similar groove-like manner at this location, such that an axially and radially limited spring chamber 11 is formed by the cover 13 and the housing section 10 at this location.

[0041] The spring device 7 is installed in the spring chamber 11, which in this case is formed by the helical spring 32 and the sliding housing 31. The helical spring 32 is supported on the housing 10 at its end extending into the schematic illustration and not visible in the schematic illustration in a circumferential direction around the axis of rotation 21 or tangentially to the circumferential direction. Based on the schematic illustration, only one of the at least two spring devices 7 of the torsional vibration damper 4 can be seen. The spring chamber is radially inward and axially clamped between the cover 13 and the input flange 8 by a ring 35, preferably a friction ring, under the action of a disk spring 37. Another ring 36 is axially clamped between the input flange 8 and the housing section 10a.

[0042] The component 6 of the output part 3 in the secondary section is provided with a housing 10, at least one spring chamber 11 for accommodating a spring device 7, and a driven flange 10c connected to the housing section 10a of the housing 10. The housing 10 and the driven flange 12 are effectively connected to each other through an overload clutch 50. The overload clutch 50 is connected to the driven flange 12, and the annular disc-shaped edge of the housing section 10a of the housing 10 is frictionally clamped in the overload clutch 50. Here, the driven flange 12 integrally and of the same material forms the axial support 43 of the overload clutch 50. The overload clutch 50 has another axial support 42, and the other axial support is connected to the driven flange 12 or the axial support 43 through a riveted connection part 14. The driven flange 12 is effectively connected to a second coupling element 17, and the second coupling element is formed by a pin 28. The driven flange 12 is a formed part made of a plate and integrally has a sleeve 15 in the direction towards the input flange 8, and an insert 27 with an internal tooth part 26 is placed in the sleeve. The internal tooth part 26 engages with the external tooth part 38 of the pin 28 in a form-fitting manner to transmit the driving torque.

[0043] The overload clutch 50 is formed by two axial supports 42, 43, friction linings 44, 45, a preloading element 46, and a support disc 47. The axial supports 42, 43 are axially opposite to each other at an annular gap 48 and are connected to the driven flange 12. A friction surface is constructed on the housing section 10a. The corresponding friction linings 44, 45, the preloading element 46, and the support disc 47 are arranged in the annular gap 48 between the axial supports 42, 43 and are preloaded against each other axially by the preloading element 46 configured as a disc spring.

[0044] The driven flange 12 has a disc body 49 including an inner cylindrical front extension 22, wherein the front extension 22 is arranged concentrically with respect to the rotation axis 21 of the torque transmission device 60 and extends axially in the direction towards the input part 2 starting from a root 23 constructed on the disc body 49, and the insert 27 is at least accommodated in the front extension 22.

[0045] List of Reference Numerals

[0046] 1 Torque transmission device

[0047] 2 Input part

[0048] 3 Output part

[0049] 4 Torsional vibration damper

[0050] 5 Components of the input part

[0051] 6 Components of the output part

[0052] 7 Spring device

[0053] 8 Input flange

[0054] Flange wing of the 9 - input flange

[0055] 10. Housing

[0056] 10a. Housing section

[0057] 10b. Arching part

[0058] 10c. Driven flange

[0059] 11. Spring chamber

[0060] 12. Driven flange

[0061] 13. Cover of the housing

[0062] 14. Riveted connection part

[0063] 15. Sleeve

[0064] 16. First coupling element

[0065] 17. Second coupling element

[0066] 20. Disk body

[0067] 21. Axis of rotation

[0068] 22. Front extension part

[0069] 23. Root part

[0070] 24. Step part

[0071] 25. Component

[0072] 26. Internal tooth part

[0073] 27. Insert

[0074] 28. Pin

[0075] 29. Screw

[0076] 30. Weld seam

[0077] 31. Sliding shell

[0078] 32. Helical spring

[0079] 33. Sensing ring

[0080] 34. Riveted connection part

[0081] 35. Ring

[0082] 36. Ring

[0083] 37. Disk spring

[0084] 38. External tooth part

[0085] 39 Annular disc

[0086] 40 Guide section

[0087] 41 Through hole

[0088] 42 Axial support

[0089] 43 Axial support

[0090] 44 Friction lining

[0091] 45 Friction lining

[0092] 46 Preloading element

[0093] 47 Support disc

[0094] 48 Annular gap

[0095] 49 Disc body

[0096] 50 Overload clutch

[0097] 60 Torque transmission device

Claims

1. A torque transmission device (1, 60), the torque transmission device being used for transmitting a driving torque between a first coupling element (16) of the torque transmission device (1, 60) and a second coupling element (17) of the torque transmission device (1, 60), the torque transmission device (1, 60) being provided with an input portion (2) assigned to the first coupling element (16) on the drive side, and the torque transmission device (1, 60) having an output portion (3) assigned to the second coupling element (17) on the driven side and a torsional vibration damper (4), wherein: the torsional vibration damper (4) is functionally arranged between the input part (2) and the output part (3) and has at least one spring device (7), wherein the input part (2) and the input part (3) can be pivoted relative to each other in a limited manner about the axis of rotation (21) of the torque transmission device (1, 60) counter to the action of the spring device (7), - functionally equipping the output part (3) with a driven flange (10c, 12) operatively connected to the second coupling element (17), the input part (2) has at least one input flange (8) which is operatively connected to the first coupling element (16) and which bears against the spring device (7) on the input side of the spring device (7), The output part (3) is provided with a housing (10), at least one spring chamber (11) for accommodating the spring device (7), - the spring chamber (11) is at least partially surrounded by the housing (10) and a cover (13) fixed to the housing (10), the spring device (7) is accommodated in the spring chamber (11) and is supported on the driven side on the housing (10), The torque transmission device (1, 60) is provided with a driven flange (10c, 12) operatively connected to the housing (10), and wherein the driven flange (10c, 12) is operatively connected to the second coupling element (17) via a sleeve (15), The sleeve (15) has an insert (27) inserted into the sleeve (15), the insert (27) comprising an internal toothing (26) and the insert (27) is operatively connected to the second coupling element (17) via the internal toothing (26).

2. The torque transmission device (1, 60) according to claim 1, characterized in that The second coupling element (17) has an external toothing (38), wherein the internal toothing (26) is operatively connected to the second coupling element (17) via the external toothing (38).

3. The torque transmission device (1, 60) according to claim 2, characterized in that The driven flange (10c, 12) has a disk body (20, 49) with an inner cylindrical front extension (22), wherein the front extension (22) is arranged concentrically with respect to the rotation axis (21) of the torque transmission device (1, 60) and extends axially in the direction of the input part (2) starting from a root (23) formed on the disk body (20, 49), wherein the insert (27) is at least accommodated in the front extension (22).

4. The torque transmission device (60) according to claim 1, 2 or 3, characterized in that The output flange (10c) is formed integrally with the housing section (10a) of the housing (10).

5. The torque transmission device (60) according to claim 1, 2 or 3, characterized in that The torque transmission device (60) has an overload clutch (50), wherein the overload clutch (50) is functionally arranged between the torsional vibration damper (4) and the output flange (12), wherein the overload clutch (50) is connected to the output flange (12) and at least one housing section (10a) of the housing (10) connected to the housing (10) is clamped in the overload clutch (50) in a frictionally connected manner.

6. The torque transmission device (60) according to claim 5, characterized in that The overload clutch (50) is composed of at least two axial supports (42, 43), at least one friction lining (44, 45), at least one preload element (46) and at least one support disk (47).

7. A driven flange (10c, 12) for a torque transmission device (1, 60), the driven flange being a cold-formed component made of steel sheet.