Coupling arrangement with a clamping device and with an axial energy storage device
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- ZF FRIEDRICHSHAFEN AG
- Filing Date
- 2015-01-28
- Publication Date
- 2026-07-09
AI Technical Summary
Existing clutch devices experience undesirable friction and wear due to relative rotational movements between the pressing device, axial energy storage device, and housing during torque shocks or torsional vibrations, leading to inefficiencies and component degradation.
A clutch device with an anti-rotation arrangement that non-rotatably connects the pressing device and axial energy storage device to the housing, preventing relative rotational movements and ensuring they move in sync with the housing, thereby eliminating friction and wear.
The anti-rotation arrangement effectively prevents unwanted friction and wear by ensuring the pressing device and axial energy storage device remain synchronized with the housing, enhancing clutch performance and longevity.
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Abstract
Description
[0001] A coupling device, housed in a coupling arrangement and comprising at least one drive-side coupling element, at least one output-side coupling element, and a clamping device for the coupling elements, wherein in a first operating state the coupling elements are held at least substantially in operative connection with one another under the action of a clamping force exerted by the clamping device, and in a second operating state the coupling elements are at least substantially relieved of the action of the clamping device after at least partial release of the effect of the clamping force exerted by the clamping device, and wherein the clamping device must counteract an axial force generated by an axial energy storage device in one of the two operating states.whereas in the other of the two operating states, the clamping device is at least substantially free from an axial force generated by the axial energy storage device or even supported by this axial force, and the axial energy storage device is mounted on the housing of the coupling arrangement.
[0002] Such a coupling device is known from DE 10 2006 035 649 A1. This coupling device has a plurality of drive-side coupling elements which are rotationally fixed to the housing of a coupling arrangement at least partially filled with fluid and interact with output-side coupling elements which are operatively connected to an output via a torsional vibration damper. A clamping device in the form of a coupling piston is axially displaceable within the housing and is subjected to an axial force in the direction extending away from the coupling elements by means of an axial energy storage device mounted on a cover hub of a housing cover by means of an axial stop.This ensures that if there is an overpressure in the first pressure chamber (which houses the coupling elements) compared to a second pressure chamber (located axially between the drive-side housing cover and the coupling piston), the coupling piston is quickly moved away from the coupling elements, thus preventing any potential friction and / or drag losses in the area of the coupling elements. Conversely, if there is an overpressure in the second pressure chamber compared to the first, the coupling piston is moved against the force of the axial energy storage device towards the coupling elements. As soon as it comes into contact with them, this action brings them into frictional contact, thereby enabling torque transmission between the coupling elements.If a torque surge occurs, the drive-side clutch elements, due to their rotationally fixed mounting on the housing, will follow this surge, while the clutch piston, as well as the axial energy storage device, will initially remain in their original rotational position due to inertia, only to then potentially execute a rotational movement in response to the torque surge. In any case, the torque surge will result in a relative rotational movement between the clutch piston and the housing and the adjacent drive-side clutch element on the one hand, and between the axial energy storage device and the cover hub on the other, causing undesirable friction and, consequently, potentially even wear.
[0003] Another clamping device, housed in a coupling assembly and interacting with coupling elements and an axial energy storage device, is known from US 8,256,600 B2. The axial energy storage device has, in the circumferential direction, a plurality of coil springs which are supported at one end by the clamping device designed as a coupling piston and at the other end by an annular axial stop that limits the deflection of the coupling piston in the direction of the coupling elements. Since both the coupling piston and the axial stop are positively connected to the coil springs, the coil springs provide rotational protection between the coupling piston and the axial stop.However, the clutch piston and axial stop lack a rotational locking mechanism relative to the housing of the coupling assembly. Therefore, even in the event of a torque surge, a relative rotational deflection of the clutch piston and axial stop relative to the housing and the drive-side coupling elements, and consequently undesirable friction, must be expected.
[0004] The invention is based on the objective of further developing a coupling device in a housing of a coupling arrangement in such a way that the occurrence of undesirable frictional influences between a clamping device and the housing, but also optionally between an axial energy storage device and the housing, can be effectively excluded even when torque shocks occur.
[0005] This problem is solved by a coupling device, housed in a coupling arrangement and comprising at least one drive-side coupling element, at least one output-side coupling element, and a clamping device for the coupling elements, wherein in a first operating state the coupling elements are held at least substantially in operative connection with one another under the action of a clamping force exerted by the clamping device, and wherein in a second operating state the coupling elements are at least substantially relieved of the action of the clamping device after at least partial cancellation of the effect of the clamping force exerted by the clamping device, and wherein the clamping device must counteract an axial force generated by an axial energy storage device in one of the two operating states.While in the other of the two operating states, the clamping device is at least substantially free from an axial force generated by the axial energy storage device or even supported by this axial force. The axial energy storage device is mounted on the housing of the coupling arrangement, preferably on a cover hub of a housing cover of the housing. In particular, the clamping device is connected to the housing of the coupling arrangement at least substantially by means of a rotation locking arrangement.
[0006] Due to the rotationally fixed connection of the clamping device to the housing of the coupling assembly, the clamping device participates in the movements of the housing of the coupling assembly, whereby the rotational movement of the coupling assembly about a central axis of the coupling assembly is significant. Should torsional vibrations, or even torque surges, be superimposed on the rotational movement of the coupling assembly, then these torsional vibrations or torque surges in the direction around the central axis, i.e., in the circumferential direction, can in no way trigger a relative rotational movement of the clamping device with respect to the housing of the coupling assembly and thus with respect to the at least one drive-side coupling element. Undesired friction and any resulting wear on the aforementioned components are thus effectively prevented.
[0007] Since the axial energy storage device can also be of high mass, it is advantageous if no relative rotational movement can occur between the axial energy storage device and the housing of the coupling arrangement. To achieve this, the axial energy storage device is connected to the housing of the coupling arrangement, advantageously via the anti-rotation device. The axial energy storage device engages the clamping device on one side and the housing of the coupling arrangement on the other, in particular a cover hub of a housing cover, in a rotationally fixed manner.Due to these rotationally fixed connections of the axial energy storage device, it cannot perform any relative rotational movement with respect to either the clamping device or the housing of the coupling arrangement, thus effectively preventing unwanted friction and therefore wear between the clamping device and the axial energy storage device, as well as between the latter and the housing of the coupling arrangement.
[0008] Advantageously, the anti-rotation device has an axial stop for the axial energy storage device, which can preferably be at least substantially ring-shaped. The anti-rotation device is non-rotatably connected to the housing of the coupling device, in particular to a housing cover hub of a housing cover.
[0009] Preferably, a drive-side anti-rotation device and an output-side anti-rotation device are provided, the drive-side anti-rotation device being in rotary connection with the clamping device, and the output-side anti-rotation device being connected with the housing of the coupling arrangement.
[0010] In a preferred embodiment, the anti-rotation devices each interact with energy storage carriers that are arranged at an axial distance from one another and connected via at least one energy storage device in a rotationally fixed manner, but axially movable relative to each other, wherein both the drive-side anti-rotation device and the output-side anti-rotation device each engage the respective associated energy storage carrier in a rotationally fixed manner, at least substantially. With regard to the characteristic curve and hysteresis, it is particularly advantageous for a sensitive spring action of the clamping device if the at least one energy storage device is designed as a coil spring.
[0011] When the axial energy storage device is designed with energy storage carriers, it is advantageous if the drive-side anti-rotation device engages the first energy storage carrier closer to the pressing device, and the output-side anti-rotation device engages the second energy storage carrier further away from the pressing device. The two anti-rotation devices are thus only indirectly connected to the at least one energy storage carrier.
[0012] As already mentioned, the rotation-resistant mounting of both the clamping device and the axial energy storage device is preferably achieved by mounting the anti-rotation device on the housing hub. However, if it is desired to mount at least one of the two devices rotationally fixed at another location on the housing, then, for example, the anti-rotation device can be mounted rotationally fixed on a coupling element carrier associated with the housing of the coupling assembly for the at least one drive-side coupling element, and connected to the clamping device. The axial energy storage device can then either be rotationally fixed to the housing hub by means of another anti-rotation device, or the axial energy storage device can be arranged to be rotatably movable relative to the housing.
[0013] The present invention is explained in detail below with reference to the accompanying drawings. These show:
[0014] Fig. 1 a sectional view of a coupling arrangement comprising a clamping device, an axial energy storage device and a rotation locking device,
[0015] Fig. 2. A detail of the pressure device,
[0016] Fig. 3. A diagram of the axial energy storage device, viewed from the drive side.
[0017] Fig. 4 like Fig. 3, but viewed from the downstream side,
[0018] Fig. 5 Illustration of a rotation-prevention arrangement with indentations on the clamping device and flattening on a cover hub of a housing as rotation-prevention measures,
[0019] Fig. 6. Illustration of a rotation-prevention arrangement with toothing on the clamping device and on an axial stop as rotation-prevention measures,
[0020] Fig. 7 like Fig. 1, but with an axial energy storage device in the form of a disc spring and with a rotation-prevention arrangement that acts on the pressure device via the axial energy storage device,
[0021] Fig. 8 like Fig. 7, but with a direct connection between the anti-rotation device and the clamping device into which the anti-rotation device engages,
[0022] Fig. 9 like Fig. 8, but with axial teeth engaging in the anti-rotation device on the clamping device,
[0023] Fig. 10 a highlighting of the in Fig. 9 shown pressure device with illustration of the axial toothing,
[0024] Fig. 11 a highlighting of the in Fig. 9 shown rotation locking arrangement, designed with recesses for receiving the axial teeth of the pressure device,
[0025] Fig. 12 a sectional view through a coupling arrangement which is designed without a rotation-prevention arrangement with regard to the clamping device.
[0026] Fig. Figure 1 shows a coupling arrangement 1 , which revolve around a central axis 2 It is rotatable. The coupling arrangement 1 is via a carrying device 3 , which can be axially flexible, with a drive 70 , like an output shaft of an internal combustion engine, non-rotatably connected, and has a housing 4 The following is to ensure a rotationally fixed connection: 3 for example by means of a weld 71 on the case 4 fastened. Before going into detail about the coupling arrangement. 1 according to Fig. Section 7 will be addressed first, and explanations that are in the Fig. 1 to Fig. 6 are shown.
[0027] The case 4 the coupling arrangement 1 according to Fig. 1, which, like the coupling arrangement according to Fig. 7 via a carrying device 3 attacking a drive, it has a housing cover facing the drive. 6 and one on the case lid 6 attached housing shell 7 on. In the radial area of the central axis 2 The case lid has 6 via a cover hub 8 , the case shell 7 in contrast, via a shell hub 9 , which are achieved by means of a seal 21 compared to a gearbox 22 It is sealed. The cover hub 8 It serves to accommodate an axially displaceable clutch piston. 10 , and is equipped with passages 11formed, radially between one the central axis 2 immediately surrounding central space 12 and a pressure room 13 axially between a radial wall 14 of the case cover 6 and the clutch piston 10 extend. The cover hub 8 is by means of a seal 15 opposite an implied gearbox input shaft 16 sealed, which act as a drive 17 the coupling arrangement 1 is effective, and forms a radially inner ring channel 18 from a support sleeve 19 enclosed, which in turn forms a radially outer ring channel 20 through the shell hub 9 is enclosed.
[0028] As from Fig. The clutch piston is more easily recognizable in the second section. 10 on one of its radial walls 23 the case shell 7 facing side with axial indentations 24provided with which are formed at predetermined circumferential intervals, and axially in axial expressions 25 intervene, which is located in the clutch piston 10 adjacent drive-side energy storage carrier 26 are formed, wherein the axial projections are formed in the circumferential direction with a predetermined offset 25 each onto the radial wall 23 the case shell 7 are directed towards the drive-side energy storage carrier. Concentrically to the drive-side energy storage carrier. 26 , but with an axial offset to this, is an output-side energy storage carrier 27 provided for, at which axial expressions 28 are provided which are designed in the circumferential direction with a predetermined offset and each is placed on the radial wall. 14 of the case cover 6 are directed. Two axial expressions each. 25 and 28 the energy storage medium 26 and 27 appear as in Fig. 3 and Fig. As shown in section 4, together, by jointly creating an energy storage system 29 absorb, which is preferably used as a spiral compression spring 31 is trained. Through the energy storage carriers 26 and 27 will be, together with the energy storage systems 29 , an axial energy storage device 30 for the clutch piston 10 educated.
[0029] For the axial support of the axial energy storage device 30 is in the cover hub 8 an axial stop 32 admitted. How Fig. 3 and Fig. As further shown in section 4, the energy storage carriers on the output side are... 27 radially inside along the circumference two flattened areas 33 provided for, which are comparable, in Fig. 5 flattened areas shown 34 on the cover hub 8 They interact. In this way, a relative rotation of the output-side energy storage carrier is achieved. 27opposite the cover hub 8 ensured. Since the output-side energy storage carrier 27 due to the axial expressions 28 the energy storage 29 as well as the drive-side energy storage carrier 26 due to the axial expressions 25 in the circumferential direction, at least essentially non-rotatable, and the drive-side energy storage carrier 26 due to the axial compression fractures 24 rotationally fixed to the clutch piston 10 In this way, both the clutch piston and the clutch piston are affected. 10 as well as the axial energy storage device 30 The axial indentations form a functionally stable connection. 24 on the clutch piston 10 a drive-side rotation locking device 36 the anti-rotation device 35 for the drive-side energy storage carrier 26 , while the flattening 34 on the cover hub 8an output-side anti-rotation device 37 the anti-rotation device 35 for the output-side energy storage carrier 27 form. The anti-rotation device 35 is with regard to the axial energy storage device 30 as well as with regard to the clutch piston 10 effective.
[0030] A radial outer wall 40 of the case cover 6 is for the formation of a radially outer coupling element carrier 39 with internal teeth 41 formed, into which an external toothing 42 on drive-side coupling elements 43 intervenes, and thus the drive-side coupling elements 43 , which are axially movable within the housing cover 6 are mounted, rotationally fixed to the housing in the circumferential direction 4 connects. Axially between each pair of drive-side coupling elements. 43Each is a coupling element on the output side. 44 recorded, each via an internal toothing 45 features an external toothing 46 of a radially inner coupling element carrier 47 intervenes, and thus the output-side coupling elements 44 , which are axially displaceable in the coupling element carrier 47 are mounted, rotationally fixed in the circumferential direction on the coupling element carrier 47 connects. The coupling element carrier 47 is part of an entrance 48 a torsional vibration damper 50 , the outcome of which 52 via energy storage 53 to the entrance 48 is connected. The exit 52 of the torsional vibration damper 50 is attached to a torsional vibration damper hub 54 attached, which by means of a first storage 55 opposite the cover hub 8 and by means of a second storage56 opposite the case shell 7 is positioned, and which is connected by means of a toothed connection 57 rotationally fixed to the gearbox input shaft 16 attacks. The second storage 56 shows second passes 58 up, the torsional vibration damper hub 54 in contrast, third rounds 59 The passages 58 and 59 each leads into one of the coupling elements 43 , 44 as well as the torsional vibration damper 50 surrounding cold storage room 62 .
[0031] As from Fig. As can be seen in Figure 1, this is the drive-side coupling element. 43 , the one furthest from the radial wall 14 of the case cover 6 removed, is thicker in cross-section than the other coupling elements 43 and 44 , since this coupling element 43 in a manner not shown, in relation to the case cover 6is axially supported, and thus axial forces which are exerted by the clutch piston 10 on the coupling elements 43 and 44 be transferred, axially supported, and onto the housing 4 transmits. With regard to the coupling elements 43 and 44 , which together with the clutch piston 10 as a coupling device 61 The clutch piston serves to be effective. 10 thus as a pressure device 60 .
[0032] The clutch piston 10 It can essentially be operated in two operating states, namely firstly in a first operating state in which the coupling elements 43 and 44 under the effect of a force exerted by the clutch piston 10 The applied clamping force is at least essentially held in operative connection with each other, and secondly, in a second operating state in which the coupling elements 43 and 44after at least partial reversal of the effect of the clutch piston 10 The applied clamping force is at least essentially determined by the action of the clutch piston. 10 are relieved.
[0033] For the initial operating state, the pressure chamber 13 opposite the cold storage room 62 an overpressure is created by fluid passing over a channel in the transmission input shaft. 16 contained central bore 65 , the central area 12 and those in the lid hub 8 designated passages 11 into the printing room 13 is promoted. The clutch piston 10 This counteracts the effect of the axial energy storage device. 30 towards the coupling elements 43 , 44 shifted, and exerts pressure on the coupling elements 43 , 44 , as soon as contact is established with them, the aforementioned axial force is exerted.
[0034] If torsional vibrations or even torque surges occur during the initial operating state, the clutch piston will 10 , i.e., the clamping device 60 , through which the axial energy storage device 30 associated anti-rotation device 35 prevented a relative rotational movement with respect to the case cover 6 and thus the case 4 firstly, and in relation to the adjacent drive-side coupling element 45 to carry out, and thus provoke friction, and possibly also wear.
[0035] For the second operating state, however, the pressure chamber 13 over the passage 11 , the central area 12 and the central bore 65 relieved, and instead via one of the ring channels 18 , 20 as well as the passage assigned to it 59 , 58 Fluid in the cold storage room 62preferably a ring channel 20 as well as passage 58 for filling the cold storage room 62 , ring canal 18 as well as passage 59 on the other hand, for emptying the cold storage room 62 used. The clutch piston 10 This is achieved with the support of the axial energy storage device. 30 from the coupling elements 43 , 44 increasingly removed, thereby lifting the pressure on the coupling elements 43 , 44 axial force exerted as soon as contact with the coupling elements occurs 43 , 44 ends.
[0036] The execution according to Fig. 6 differs with regard to the design of the rotation safety arrangement. 35 from the previously discussed design, in that the drive-side rotation safety device 36 as interlocking 66 on the clutch piston 10is provided for, and in a form-fitting and therefore rotationally fixed connection with a comparable toothing. 67 of the drive-side energy storage carrier 26 stands, and by the output-side anti-rotation device 37 as interlocking 68 at the axial stop 32 is provided for, and in a form-fitting and therefore rotationally fixed connection with a comparable toothing. 69 of the output-side energy storage carrier 27 stands. In this version of the anti-rotation device. 35 is the axial stop 32 using fastening elements 64 on the cover hub 8 of the case 4 attached.
[0037] The aforementioned Fig. 7 shows a pressure device 60 in the form of a clutch piston 10 , which, as already mentioned in Fig. 2 shown, along the circumference via a plurality of axial indentations 24These axial indentations are present. 24 each assigned passage 74 an energy storage device 29a an axial energy storage device 30 without play in the circumferential direction, whereby the energy storage 29a , in contrast to the previously described design, in the form of a disc spring 72 is present, and is located in its radially outer area with a first side on the clutch piston. 10 and in its radially inner region with a second side opposite the first side at an axial stop 32a , which is attached to the lid hub 8 of the case cover 6 The cover hub is supported. 8 for the rotationally fixed mounting of a retaining ring with an angled cross-section 75 , which has an axial toothing 76 appropriate passages 73 in the energy storage 29awithout play in the circumferential direction. While the axial compression 24 on the clutch piston 10 functionally a drive-side rotation locking device 36a a rotation lock arrangement 35 for energy storage 29a and thus for the axial energy storage device 30 The retaining ring serves to form 75 functionally as an output-side anti-rotation device 37a the anti-rotation device 35 for energy storage 29a and thus for the axial energy storage device 30 .
[0038] A comparable design to the one in Fig. 7 is in Fig. 8 shown, however with the difference that the pressure device 60 forming clutch pistons 10b instead of axial compression via webs 84 These jetties have it. 84 are in a rotationally fixed connection with an axial gear. 76bone on the cover hub 8 of the case 4 rotationally fixed, angled retaining ring 75b , which also acts as a disc spring 72b trained energy storage 29b the axial energy storage device 30 It penetrates axially in the circumferential direction without any play. The energy storage device 29b Its radially outer area is supported on one side by the clutch piston 10b and in its radially inner region with a second side opposite the first side at the axial stop 32b off, which is attached to the lid hub 8 of the case 4 has been recorded. While the bridges 84 on the clutch piston 10 functionally a drive-side rotation locking device 36b a rotation lock arrangement 35 for energy storage 29b and thus for the axial energy storage device 30 The retaining ring serves to form75b functionally as an output-side anti-rotation device 37b the anti-rotation device 35 for energy storage 29b and thus for the axial energy storage device 30 .
[0039] Also Fig. Figure 9 shows an axial energy storage device 30 with an energy storage 29c in the form of a disc spring 72c , which in their radially outer area are connected to a first side of the clutch piston 10c the pressure device 60 and in its radially inner region with a second side opposite the first side at an axial stop 32c , which is attached to the lid hub 8 of the case 4 It is supported. The clutch piston 10c It has an axial toothing on the radial inside. 76c up, which, like Fig. Figure 10 shows that they are arranged at predetermined circumferential distances from each other. This axial toothing 76cengages in recesses without play in the circumferential direction 77 of the axial stop 32c one that according to Fig. 11 regarding their circumferential distances to each other and regarding their dimensioning in the radial and circumferential directions of the axial gearing 76c on the clutch piston 10c correspond. While the axial gearing 76c on the clutch piston 10c functionally a drive-side rotation locking device 36c a rotation lock arrangement 35 for the pressure device 60 The recesses serve to form 77 of the axial stop 32c functionally as an output-side anti-rotation device 37c the anti-rotation device 35 for the pressure device 60 .
[0040] The energy storage 29c the axial energy storage device 30 can with its axial stop 32cthe second side facing the axial stop is rotationally fixed. 32c It must be recorded. The axial stop has this feature. 32c via a toothed connection 78 ( Fig. 9), with which a toothing 79 on the radial inner side of the energy storage device 29c is engaged. In this case, the anti-rotation device takes effect. 35 also on the energy storage 29c the axial energy storage device 30 The clamping device 60 and the axial energy storage device 30 They do not perform any relative rotational movement towards each other, even if they do not have a rotary connection between them.
[0041] If no interlinking between the energy storage 29c the axial energy storage device 30 and the axial stop 32c can the energy storage 29c compared to the axial stop 32cIt can also be freely rotatable. However, in that case, there is a relative rotational movement between the clamping device. 60 and the axial energy storage device 30 It cannot be ruled out. After all, due to the anti-rotation device... 35 between the pressure device 60 and the axial stop 32c a relative rotational movement between the pressure device 60 and the adjacent drive-side coupling element 43 the coupling device 61 (cf.) Fig. 1) avoided.
[0042] When executed according to Fig. 12 will be the one on the outer wall 40 of the case cover 6 of the case 4 intended internal toothing 41 used to attach to a connecting plate 80 intended external toothing 81 to be installed in a rotationally fixed manner. The connecting plate 80 , which axially between the radial wall 14 of the case cover6 and one of the clutch pistons 10c adjacent drive-side coupling element 43 It is arranged and also has internal teeth. 82 , which have an axial toothing 83 on the clutch piston 10d and thus at the pressure device 60 It is rotationally fixed. With regard to the clutch piston. 10d The connecting plate 80 thus as a rotation lock arrangement 35 , whereby the internal teeth 41 of the case cover 6 as a drive-side rotation safety device 36d the anti-rotation device 35 and the axial gearing 83 on the clutch piston 10d as an output-side anti-rotation device 37d the anti-rotation device 35 is effective. Since the clutch piston 10d using the connecting plate 80 as well as the drive-side coupling elements 43each via the internal teeth 41 with the case cover 6 and thus the case 4 Since they are rotationally fixed, there is no relative rotational movement between the clutch piston and the clutch piston. 10d and the adjacent drive-side coupling element 43 before.
[0043] Regarding the axial energy storage device 30 As far as this is concerned, they can be described as a pair of disc springs. 72c trained energy storage 29d , as already mentioned Fig. 9 described, either via the axial stop 32d rotationally fixed to the cover hub 8 of the case cover 6 of the case 4 be connected, or else it lies, as in Fig. 12 shown graphically, no rotation lock for the energy storage device 29d before. Reference symbol list 1 Coupling arrangement 2 Central axis 3. Carrying device 4 cases 6 Housing covers 7 Housing shell 8 Cover hub 9 cup hub 10 clutch pistons 11 passages in the cover hub 12 Central Room 13 Printing room 14 Radial wall of the housing cover 15 Seal 16 Gearbox input shaft 17 Drive 18 radial inner ring channel 19 Support sleeve 20 radial outer ring channel 21 Seal 22 gearboxes 23 Radial wall of the housing shell 24 axial pressures on the clutch piston 25 Axial expression on the drive-side energy storage carrier 26 drive-side energy storage carriers 27 output-side energy storage carriers 28 axial compressions on the output-side energy storage carrier 29 Energy storage 30 Axial energy storage device 31 Spiral compression spring 32 Axial stop 33 flattenings on the output-side energy storage carrier 34 flats on the cover hub 35 Rotation lock arrangement 36 drive-side rotation locking device 37 output-side anti-rotation device 39 radial outer coupling element carrier 40 Outer wall of the housing cover 41 Internal toothing of the housing cover 42 External toothing of drive-side coupling elements 43 drive-side coupling element 44 output-side coupling element 45 Internal toothing output-side coupling element 46 External toothing radial inner coupling element carrier 47 radial inner coupling element carrier 48 Inlet of a torsional vibration damper 50 torsional vibration dampers 52 Output of the torsional vibration damper 53 Energy storage 54 Torsional vibration damper hub 55 first storage 56 second storage 57 Gearing 58 cycles in the second storage 59 passes in the torsional vibration damper hub 60 pressure device 61 Coupling device 62 Cold storage room 64 fasteners 65 Central bore 66 Teeth on the clutch piston 67 Gearing of the drive-side energy storage carrier 68 Toothing at the axial stop 69 Interlocking of the output-side energy storage carrier 70 drive 71 weld 72 Belleville washers 73 Passage in the energy storage system 74th pass 75 retaining ring 76 Axial gearing 77 Exclusion 78 Toothing at the axial stop 79 Interlocking at the energy storage unit 80 Connecting plate 81 External teeth of the connecting plate 82 Internal teeth of the connecting plate 83 Axial gearing 84 bridges QUOTES INCLUDED IN THE DESCRIPTION
[0044] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature
[0045] DE 102006035649 A1
[0002] US 8256600 B2
[0003]
Claims
[1] Coupling device ( 61 ), recorded in a housing ( 4 ) a coupling arrangement ( 1 ) and comprising at least one drive-side coupling element ( 43 ), at least one output-side coupling element ( 44 ) and a clamping device ( 60 ) for the coupling elements ( 43 , 44 ), wherein in a first operating state the coupling elements ( 43 , 44 ) under the influence of a pressure exerted by the clamping device ( 60 ) exerted clamping force are at least essentially held in operative connection with each other, and in a second operating state the coupling elements ( 43 , 44 ) after at least partial reversal of the effect of the pressure device ( 60 ) exerted contact force depends at least essentially on the effect of the contact device ( 60 ) are relieved, and the pressure device ( 60) in one of the two operating states of an axial energy storage device ( 30 ) must counteract the axial force generated, while the pressure device ( 60 ) in the other of the two operating states at least essentially free from any influence of the axial energy storage device ( 30 ) generated axial force or even supported by this axial force, and the axial energy storage device ( 30 ) on the casing ( 4 ) the coupling arrangement ( 1 ) is recorded, characterized by that the pressure device ( 60 ) at least essentially by means of a rotation lock arrangement ( 35 ) with the housing ( 4 ) the coupling arrangement ( 1 ) is connected. [2] Coupling device ( 61 ) according to claim 1, characterized by that the axial energy storage device ( 30 ) at least essentially by means of a rotation lock arrangement ( 35) with the housing ( 4 ) the coupling arrangement ( 1 ) is connected. [3] Coupling device ( 61 ) according to claim 1 or 2, characterized by that the axial energy storage device ( 30 ) associated rotation lock arrangement ( 35 ) via a drive-side rotation locking device ( 36 ; 36a ; 36b ; 36c ) and via an output-side anti-rotation device ( 37 ; 37a ; 37b ; 37c ) has, one of which is a rotation lock device ( 36 ; 36a ; 36b ; 36c ) with the pressure device ( 60 ) is in a rotary connection, and the other rotation locking device ( 37 ; 37a ; 37b ; 36c ) with the housing ( 4 ) the coupling arrangement ( 1 ). [4] Coupling device ( 61 ) according to claim 1 or 2, characterized bythat the axial energy storage device ( 30 ) at least two energy storage carriers arranged axially apart from each other ( 26 , 27 ) has at least one energy storage device ( 29 ) are connected in a rotationally fixed manner, but axially movable relative to each other. [5] Coupling device ( 61 ) according to claims 3 and 4, characterized by that a rotation locking device ( 36 ) the clamping device ( 60 ) closer first energy storage carrier ( 26 ) and the other anti-rotation device ( 37 ) the clamping device ( 60 ) more distant second energy storage carrier ( 27 ) is assigned. [6] Coupling device ( 61 ) according to claim 5, characterized by that the respective anti-rotation device ( 36 , 37 ) at least essentially rotationally fixed to the respective associated energy storage medium ( 26 , 27 attacks. [7] Coupling device ( 61 ) according to claim 3, characterized by that both the drive-side anti-rotation device ( 36 ; 36a ) as well as the output-side anti-rotation device ( 37 ; 37a ) each at least essentially the axial energy storage device ( 30 ) is assigned. [8] Coupling device ( 61 ) according to claim 1 or 2, characterized by that the anti-rotation device ( 35 ) rotationally fixed with the axial energy storage device ( 30 ). [9] Coupling device ( 61 ) according to claim 1, characterized by that the anti-rotation device ( 35 ) on one of the housings ( 4 ) the coupling arrangement ( 1 ) associated coupling element carrier ( 39 ) for at least one drive-side coupling element ( 43 ) is mounted in a rotationally fixed manner. [10] Coupling device ( 61) according to claim 8 or 9, characterized by that the anti-rotation device ( 35 ) rotationally fixed with the clamping device ( 60 ) is connected. [11] Coupling device ( 61 ) according to claim 9 or 10, characterized by that the axial energy storage device ( 30 ) compared to the rotation lock arrangement ( 35 ) is arranged to be rotatable. [12] Coupling device ( 61 ) according to claim 1, characterized by that the anti-rotation device ( 35 ) an axial stop ( 32 ; 32a ; 32b ; 32c ) for the axial energy storage device ( 30 ) is assigned. [13] Coupling device ( 61 ) according to claim 1, characterized by that the anti-rotation device ( 35 ) on the casing ( 4 ) the coupling arrangement ( 1 ), especially at a cover hub ( 8 ) of a housing cover ( 6 ) of the housing ( 4), is mounted in a rotationally fixed manner. [14] Coupling device ( 61 ) according to claim 4, characterized by that at least one energy storage device ( 29 ) by a spiral compression spring ( 31 ) is formed.