EP3899318A1 - Drehschwingungsdämpfungsanordnung - Google Patents
DrehschwingungsdämpfungsanordnungInfo
- Publication number
- EP3899318A1 EP3899318A1 EP19829116.3A EP19829116A EP3899318A1 EP 3899318 A1 EP3899318 A1 EP 3899318A1 EP 19829116 A EP19829116 A EP 19829116A EP 3899318 A1 EP3899318 A1 EP 3899318A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- deflection
- stop
- mass
- deflection mass
- torsional vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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- 230000033001 locomotion Effects 0.000 claims abstract description 78
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- 238000005755 formation reaction Methods 0.000 claims abstract description 66
- 230000008878 coupling Effects 0.000 claims abstract description 52
- 238000010168 coupling process Methods 0.000 claims abstract description 52
- 238000005859 coupling reaction Methods 0.000 claims abstract description 52
- 230000005484 gravity Effects 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 21
- 238000002485 combustion reaction Methods 0.000 claims description 19
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229920006168 hydrated nitrile rubber Polymers 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims 1
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- 230000003247 decreasing effect Effects 0.000 description 3
- 230000004936 stimulating effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
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- 230000006835 compression Effects 0.000 description 2
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- 230000005284 excitation Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- NQLVQOSNDJXLKG-UHFFFAOYSA-N prosulfocarb Chemical compound CCCN(CCC)C(=O)SCC1=CC=CC=C1 NQLVQOSNDJXLKG-UHFFFAOYSA-N 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
- F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
- F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2230/00—Purpose; Design features
- F16F2230/0023—Purpose; Design features protective
Definitions
- the present invention relates to a torsional vibration damping arrangement, in particular a speed-adaptive damper, comprising a deflection mass carrier which can be rotated about an axis of rotation and a plurality of deflection masses carried in the circumferential direction in succession on the deflection mass carrier from a basic relative position with respect to this deflectable mass, with deflection from the basic relative position
- the radial position of the deflection masses with respect to the axis of rotation changes, with each deflection mass being deflectable in both circumferential directions by means of at least two coupling formations on the deflection mass carrier, starting from the basic relative position, the coupling formations provided in association with each deflection mass being a maximum deflection of the Define the deflection mass with respect to the deflection mass carrier based on the basic relative position.
- Such a torsional vibration damping arrangement effective as a speed-adaptive damper is known from DE 10 2012 219 737 A1.
- the deflection mass carrier of this torsional vibration damping arrangement is, integrated in a starting element designed as a hydro-dynamic torque converter, coupled to an intermediate mass between two in the torque converter between a lock-up clutch and an output hub or torsional vibration dampers.
- the torsional vibration damping arrangement thus lies in the torque flow after the lock-up clutch, so that torque surges generated by the lock-up clutch, particularly when the lock-up clutch is slipping or when the lock-up clutch is open when an internal combustion engine is started, are not intercepted in the following system area of the torque converter, in particular also Torsional vibration damping arrangement can be initiated.
- the deflection masses are deflected excessively or until a maximum deflection is achieved with respect to the deflection mass carrier.
- a ring-shaped stop formation arranged radially within the deflection masses is provided. see at which when transitioning to a standstill state and thus decreasing speed or decreasing centrifugal force acting on the deflection masses, the gravitational force can then come to the radially inward or downward deflection masses.
- a torsional vibration damping arrangement in particular a speed-adaptive damper, comprising a deflection mass carrier rotatable about an axis of rotation and a plurality of deflection masses carried successively in the circumferential direction on the deflection mass carrier from a basic relative position with respect to this deflection mass, with deflection from the basic Relative position, the radial position of the deflection masses changes with respect to the axis of rotation, each deflection mass being deflectable by means of at least two coupling formations on the deflection mass carrier, based on the basic relative position, being deflectable in both circumferential directions, the coupling formations provided in association with each deflection mass being a maximum deflection Define the deflection mass with respect to the deflection mass carrier based on the basic relative position.
- the torsional vibration damping arrangement is characterized in that, in order to at least one, preferably each deflection mass, an elastically deformable stop formation is provided for ending the deflection movement of the deflection mass after reaching a stop deflection, and that in at least one, preferably each deflection mass in at least one , preferably each circumferential direction, the stop deflection is less than 95% of the maximum deflection.
- the elastic stop pattern already takes effect Reaching the maximum possible deflection of a deflection mass or the deflection masses according to the constructive design of the coupling formations ensures that when excessive rotational accelerations occur in a drive train, a hard stop leading to damage or detuning of the vibration system will not occur.
- the deflection mass (s) come or come in contact with a stop which catches an excessive deflection movement by elastic deformation in the case of excessive rotational acceleration.
- the torsional vibration damping arrangement according to the invention is designed such that, in addition to the stop deflection, a defined deflection reserve is still available, deviations introduced by unavoidable manufacturing tolerances in the installation position of various components, in particular the stop formation, do not lead to the fact that before the action of the stop formation or in the path of action of the stop formation, the deflection movement is blocked due to the reaching of the maximum possible deflection according to the design of the coupling formations, or the elastic effective stop formation cannot or cannot fully develop its stop action.
- a torsional vibration damping arrangement constructed in accordance with the invention can be designed such that each deflection mass is coupled to the deflection mass carrier by means of the coupling formations associated therewith in such a way that when deflection from the basic relative position, a center of gravity of the deflection mass is based on a basic positioning of the center of gravity the basic relative position on a curved movement path about an eccentric center of gravity movement center.
- a center of mass moves approximately on a circular path with such a design, so that the center of the circle of such a circular path assumed for small deflections can be regarded as the center of gravity of the movement.
- a movement deviating from a circular path along a curved movement path with decreasing in the direction of the basic relative position or the basic positioning can decrease by appropriate shaping of guideways of the coupling formations Radius of curvature can be provided to ensure that such a torsional vibration damping arrangement can be tuned to a specific excitation order.
- At least one, preferably each deflection mass, a stop deflection angle corresponding to the stop deflection of the center of gravity of the deflection mass can be less than 95% of a maximum deflection angle corresponding to the maximum deflection Center of gravity of the deflection mass.
- the stop deflection angle is in the range of 70% to 90% of the maximum deflection angle, it is ensured on the one hand that a sufficiently large deflection reserve is available to compensate, in particular, for deviations from a target installation position introduced by manufacturing tolerances . On the other hand, a space-consuming and a defi ned movement of coupling elements of the coupling formations impair the conditions of excess deflection reserve avoided.
- a torsional vibration damping arrangement can be constructed in such a way that each deflection mass is coupled to the deflection mass carrier by means of the coupling formations associated therewith such that when deflection from the basic relative position, a deflection movement of the deflection mass is composed of a translational radial movement in a direction parallel to a radial direction with respect to the axis of rotation and a translational tangential movement in a direction orthogonal to a radial direction with respect to the axis of rotation.
- Such a movement of a Auslenkungsmas se can therefore take place without or essentially without self-rotation of the deflection mass, for example about its center of gravity or about an axis of rotation orthogonal to the direction of translational movement, so that a deflection mass is displaced ver on the one hand in the tangential direction and thereby also in the radial direction becomes.
- the focus of each deflection mass is a movement along a path of motion that is curved in a circle, for example at least in some areas.
- a stop radial movement path of the deflection mass corresponding to the stop deflection is less than 95% of a maximum radial movement path of the deflection mass corresponding to the maximum deflection.
- a sufficient but not excessively designed deflection path reserve can be provided in that the stop radial movement path is in the range from 60% to 80% of the maximum radial movement path.
- a torsional vibration damping arrangement can be provided such that for at least one, preferably each deflection mass, a stop tangential movement path of the deflection mass corresponding to the stop deflection is less than 95% of a maximum tangential movement path of the deflection mass corresponding to the maximum deflection .
- the stop tangential movement path is in the range from 80% to 95% of the maximum tangential movement path.
- each coupling formation has at least one guideway with a radially outer guideway vertex in the off steering mass carrier, at least a guideway with a radially inner guideway vertex in one of the deflection masses and one along the at least one guideway in the deflection mass carrier and the at least one NEN guideway in the deflection mass movable, preferably roller-like, coupling element, wherein when positioning the deflection mass in the basic relative position, the coupling element is positioned in the guideway vertex of the at least one guideway in the deflection mass carrier and in the guideway intersection of the at least one guideway in the deflection mass.
- the elastically deformable stop formation includes a rigidly coupled to the deflection mass carrier, rigid stop carrier and elastic stop material carried on the stop carrier.
- the stop support is constructed with sintered steel material, and / or that the stop material is constructed with elastomer material, preferably HNBR or FKM.
- the invention further relates to a drive system for a vehicle, comprising an internal combustion engine and a clutch arrangement for coupling and uncoupling the internal combustion engine to and from a region of a drive train which follows the clutch arrangement in the torque flow direction, at least one torsional vibration damping arrangement constructed according to the invention connected to a torque flow direction in front of the Coupling arrangement lying area of the drive train is coupled.
- a torsional vibration damping arrangement according to the invention is thus coupled to an area of the drive train which, in principle, cannot be decoupled from an internal combustion engine or its cure, and thus also, for example, in a start-up phase of the internal combustion engine when the ignition is not started by the Be effective a clutch assembly can be protected against excessive rotational accelerations.
- the elastic stop damping provided according to the invention, on the one hand, and the reserve in the deflection path beyond the stop deflection, on the other hand of substantial importance since the occurrence of hard stops of deflection masses can also be avoided even with excessive rotational acceleration, regardless of position tolerances introduced by manufacturing tolerances, particularly in the area of the stop formation.
- FIG. 1 is an axial view of a torsional vibration damping arrangement
- FIG. 2 shows an enlarged detailed view of the torsional vibration damping arrangement of FIG. 1 with the deflection mass positioned in a basic relative position;
- FIG. 3 shows a representation corresponding to FIG. 2 with the deflection mass positioned in a stop deflection
- FIG. 4 shows a representation corresponding to FIG. 2 of a deflection mass, positioned in a basic relative position, of a torsional vibration damping arrangement tuned for a higher order;
- FIG. 5 is a view corresponding to FIG. 4 with the deflection mass positioned in a stop deflection
- Fig. 6 is a representation corresponding to Figure 1 of an alternatively designed vibration damping arrangement.
- FIG. 7 shows a detailed view of the torsional vibration damping arrangement of FIG. 6 with the deflection mass positioned in a stop deflection;
- FIG. 8 shows a representation corresponding to FIG. 7 of an alternatively designed deflection mass positioned in the stop deflection
- FIG. 9 is a sectional view of a stop formation;
- Fig. 10 in a schematic representation a with a torsional vibration damping arrangement constructed drive system for a motor vehicle.
- a speed-adaptive damper or effective torsional vibration damping arrangement is generally designated 10.
- the torsional vibration damping arrangement 10 comprises a deflection mass carrier 12 with two carrier disks 14, 16 arranged successively in the direction of an axis of rotation A.
- the carrier disks 14, 16 are fixedly connected to one another by a plurality of rivet bolts 18 at an axial distance from one another.
- the torsional vibration damping arrangement 10 further comprises four deflecting masses 20 which are arranged one after the other in the circumferential direction.
- Each of the deflecting masses 20 can comprise one or more disks which are positioned axially one after the other and optionally firmly connected to one another.
- Each of the four deflection masses 20 is coupled to the deflection mass carrier 12 by two coupling formations which are arranged at a circumferential distance from one another and are generally designated 22 and are basically identical or identical to one another.
- Each of the coupling formations 22 comprises, on an opening formed in the carrier disks 14 and 16 of the deflection mass carrier 12, a guide track 24, 26 with a radially outer guide track apex 28.
- each coupling formation comprises 22 in each of the deflection masses 20, a guideway 30 formed in an opening provided therein with a radially inner guideway apex 32.
- each coupling formation 22 comprises a roller-like or roller-like coupling element 34 which forms the openings 14, 16 formed in the carrier disks on the one hand and the associated opening formed in a respective deflection mass 20 on the other hand and thus cooperates with each of the guideways 24, 26, 30.
- rotation mode i.e. at Rotation of the deflection mass carrier 12 about the axis of rotation A
- the deflection masses 22 are basically pulled radially outward due to the centrifugal force acting on them.
- the coupling elements are forced into the respective guideway apices 28, 32 by the guideways 24, 26, on the one hand, and 30, on the other hand, which are acted upon radially with respect to one another.
- the deflection masses 20 assume their maximum radially outward positioning with respect to the deflection mass carrier 12.
- the deflection masses 20 carry out such a movement with respect to the deflection mass carrier 12 that a center of gravity M of the deflection masses on the one hand carries out a translatory movement radially inwards or parallel to a radial line and on the other hand carries out one executes orthogonal to such a radial line, that is to say tangentially oriented translation movement.
- a pivot axis essentially does not take place.
- On the deflection mass support 12, a generally designated 36 stop formation is provided on the deflection mass support 12.
- This stop formation 36 comprises a rigid, for example made of metal material, built-up stop support 38 and, for example, formed on its outer peripheral region, elastic stop material 40.
- the stop support 38 can be constructed with sintered steel material, and the stop material 40 can be made with elastomer material, such as. B. HNBR or FKM.
- the stop formation 40 provides, in association with each deflection mass 20, a stop region 42 at which, as described in detail below, a respective deflection mass 20 can come into contact with deflection from the basic relative position. It can be seen in FIG.
- the deflection masses 20 are designed in their radially inner region 46 which comes to bear against the stop formation 36 with a substantially straight and also essentially tangentially extending contour, to which they are adapted the stop regions 42 of the stop formation 36 also have a contour which extends in a straight line and is arranged tangentially with respect to a radial line, that is to say essentially orthogonally thereto. 1 that the radially inner regions 46 of the deflection masses 20 are at a distance D from the respectively assigned impact regions 42 of the stop formation 36 in the basic relative position, that is to say with the center of gravity M shifted radially outward.
- stop formation 36 for example together with a coupling disk 44 which allows a connection to a drive train, can be firmly connected to the deflection mass carrier 12 by means of the rivet bolts 18.
- a coupling disk can also be provided as an integral part of one of the carrier disks 16, 18.
- FIG. 2 shows, in accordance with FIG. 1, a deflection mass 20 in the basic relative position with respect to the deflection mass carrier 12.
- re area 46 of the deflection mass 20 shown has the distance D to the impact area 42 of the stop formation 36.
- the guideways provided in the deflection mass carrier 12 on the one hand and the deflection mass 20 on the other hand, of which the guideway 26 of the carrier disk 16 and the guideway 30 of the deflection mass 20 in association with the coupling formation 22 can be seen in FIG. 2, are designed such that starting from the basic relative position, allow an equally dimensioned maximum deflection A in both circumferential directions. When the maximum deflection A is reached, for example in the illustrated embodiment, a further movement of a respective coupling element 34 in the opening receiving this in the carrier disks 14, 16 or the deflection mass 20 would not be possible.
- this is expressed as a deflection angle Wi of an approximately circular, that is to say curved, path of movement that is passed through when the deflection mass 20 is deflected from its center of gravity M, starting from a movement path shown in FIGS 1 and 2, the basic positioning of the center of gravity M with the deflection mass 20 positioned in the basic relative position.
- This movement path of the center of mass M can at least in the area close to the basic positioning approximately as a circular path around a center point of motion Z to be considered as the center of gravity such a circular descriptive circle can be considered.
- the guideways with increasing distance from the respective guideway apices 28, 32 have a contour deviating from a circular shape in the sense of a decrease in the radius of curvature, so that
- Such a shape of the guideways and consequently also the movement path of the center of mass M can also be approximately regarded as an elliptical path, in which a respective apex or the basic positioning in the area of the smallest curvature of the respective path can be assumed.
- the deflection mass 2 moves increasingly radially inward in the direction of the superimposed translational movements described above and thus approaches with its radially inner region 46 the assigned stop region 42 on.
- a deflection angle W 2 of the center of mass M corresponding stop deflection A A is the radial inner region 46 in contact with the An impact area 42.
- the stop material 40 Due to the configuration of the stop material 40 with elastomer material and thus with an elastic property, this can deflect radially inward when the deflection mass 20 is loaded and thereby absorb or dissipate energy.
- the deflection mass 20 therefore does not experience a hard stop, but its movement is gently intercepted. This avoids damage on the one hand, and on the other hand the occurrence of stop noises in the area of the torsional vibration damping arrangement 10.
- the deflection mass 20 is under compression of the Stop material 40 move slightly so that the deflection angle of the center of gravity M, going beyond the stop deflection A A corresponding angle W2 will increase slightly, but not to an extent corresponding to the full angle W1.
- Such an embodiment of the torsional vibration damping arrangement 10 brings with it various essential advantages during operation. It should first be emphasized that in the construction or design of such a torsional vibration damping arrangement 10, the various components or system areas are matched to one another in such a way that in normal rotation operation the or each deflection mass 20 does not interact with the stop formation 36, since this would fundamentally lead to a detuning of the vibration system provided by all of the deflection masses 20 and thus to an impairment of the damping behavior. Rather, the design is made in such a way that in normal rotation operation the center of mass M does not pass through the complete angle Wi or the corresponding movement path.
- the structure or the design of such a torsional vibration damping arrangement 10 can thus be made in such a way that it is ensured that the distance D is at least so large that when deflected from the basic relative position or the basic positioning, each deflection mass 20 can pass through the angle Wi until the stop deflection A A is reached , which is required for the desired vibration behavior, ie 48 ° in the example shown.
- the stop area 42 will have a larger distance from the deflection mass 20 positioned in the basic relative position and thus when the stop to be provided in accordance with the design of the torsional vibration damping arrangement 10 is reached -Deflection A A is actually still a distance between the deflection mass 20 and the stop formation 36.
- the deflection mass 20 will therefore, at least when excessive accelerations occur, move beyond the stop deflection A A or the associated angle Wi, which means a further deflection in the direction of the maximum deflection A M.
- each deflection mass 20 continues to move until it actually interacts with the stop formation 40.
- a ratio of these deflections should be in the range of approximately 0.7 to 0.9, preferably approximately 0.8. This can be expressed by the mutually related deflection angles Wi and W2 in relation to the movement path of the center of mass M of a respective deflection mass around the center of gravity movement center Z.
- this ratio can equally be expressed by the extent of the translational movement occurring in the course of such a deflection movement in the radial direction or parallel to the radial direction, so that here too, a stroke radial movement path of a respective deflection mass to be provided for a sufficiently strong deflection can be in the range from 60% to 80% to a maximum radial movement path corresponding to a maximum deflection.
- a stroke radial movement path of a respective deflection mass to be provided for a sufficiently strong deflection can be in the range from 60% to 80% to a maximum radial movement path corresponding to a maximum deflection.
- Such a relationship can also be established for the other movement component, i.e.
- the center of gravity M such a relationship can be set so that the stop tangential movement path can be in the range from 80% to 95% of the maximum tangential movement path.
- FIGS. 4 and 5 show that the movement relationships described above, for example with reference to a torsional vibration damping arrangement 10 which is matched to the second order of a stimulating vibration, also apply to vibration systems which are matched to other stimulating orders.
- FIGS. 4 and 5 in one of FIGS. 2 and 3 correspond to the way a deflection mass 20 of a torsional vibration damping arrangement 10, which is designed, for example, for the fourth order of an exciting vibration, which, for example, by the ignition frequency of an internal combustion engine can be defined.
- this basically means that manufacturing tolerances have a significantly greater impact due to the smaller distance, so that the provision of the deflection reserve described above, that is to say the distance between the at least stop deflection deflection A A and the maximum possible deflection A of substantial It is important to avoid a hard stop occurring when the maximum deflection A is reached.
- the relationship between the stop deflection A A and the maximum deflection A M to be provided according to the invention for example expressed by the ratio of the angles W2 and W1 to one another, can be used for all vibration systems designed for the most varied orders of exciting vibrations.
- FIGS. 6 to 9 show a torsional vibration damping arrangement 10, which correspond to the structure described above with reference to FIGS. 1 to 5 with regard to the basic design, as well as with respect to the Be provided with respect to the deflection of the deflection masses.
- a torsional vibration damping arrangement 10 which correspond to the structure described above with reference to FIGS. 1 to 5 with regard to the basic design, as well as with respect to the Be provided with respect to the deflection of the deflection masses.
- FIGS. 6 to 9 components or assemblies which correspond to components or assemblies described above are designated by the same reference symbols.
- the stop formation 36 is designed to adapt to the total of five deflection masses 20 and accordingly overall provides five stop areas 42.
- the fundamentally ring-shaped impact formation may have a stop carrier 38 constructed, for example, with sintered steel and, as illustrated in FIG. 9, for example molded on the outer circumference of elastic stop material 40, for example elastomer material or the like.
- the stop formation 36 formed in the manner of a ring can be connected to the deflection mass carrier 12 by means of the rivet bolts 18 connecting the two carrier disks 14, 16 to one another.
- the coupling disk 44 can, for example, be provided on the carrier disk 14 or can be formed integrally therewith.
- each stop area 42 adapted to the radially inner area 46 of a respective deflection mass 20, is again designed to be essentially straight and tangential with respect to a radial line.
- each stop area 42 has a radially outwardly oriented, dome-like elevation 48, which engages in a corresponding depression 50 of the associated deflection mass 20.
- the deflection masses 20, which can be designed, for example, for a lower order of an exciting vibration, for example the second order, can be such that when the stop deflection A A is reached, the deflection mass 20 with its the radially inner region 46 comes into contact with the stop region 42 of the stop formation 36 which extends essentially parallel thereto, but the elevation 48 is at a distance d from the opposite surface of the deflection mass 20 in the region of the depression 50.
- the deflection mass 20 is not in the region of its radially inner region 46 but in the region of the depression 50 in Contact with the dome-like elevation 48 of the stop formation 36 comes while a distance d then remains between the radially inner region 46 of the deflection mass 20 and the stop formation 36, which does not necessarily have to be the same extent as the distance d that can be seen in FIG. 7 .
- the dome-like elevation 48 receiving depression 50 in the circumferential direction there is the possibility to make a selection as to which area of the stop formation 36 a respective deflection mass 20 interacts with when the stop formation 36 takes effect.
- Fig. 10 illustrates in a schematic representation a drive system 52, in which such a constructed according to the principles of the present invention te torsional vibration damping arrangement 10 with its deflection mass carrier 12 and the deflection masses 20 can be used in a particularly advantageous manner.
- the drive system 52 comprises an internal combustion engine 54 as the drive unit, the crankshaft 56 of which is coupled to a transmission input shaft 60 of a transmission 62 via a friction clutch 58 which acts as a starting element.
- a friction clutch 58 acts as a starting element.
- the torsional vibration damping arrangement 10 is arranged and effective. In the example shown, this is arranged or effective between two serially effective torsional vibration dampers 70, 72.
- a primary side 74 of the torsional vibration damper 70 is coupled to the crankshaft 56, while a secondary side 76 of the torsional vibration damper 70 is coupled to a primary side 78 of the torsional vibration damper 72 following in the torque flow and together therewith provides an intermediate mass 80.
- the deflection mass carrier 12 of the torsional vibration damping arrangement 10 is coupled in the example shown.
- a secondary side 82 of the gate ion vibration damper 72 is coupled to the friction clutch 58, for example a flywheel of the same.
- the respective primary side 74 or 78 can have a plurality of damper springs or other elastic elements with the associated secondary side 76,
- the torsional vibration damping arrangement 10 is permanently and non-detachably coupled to the internal combustion engine 54, so that, in particular when cranking or when the ignition is started, excessive rotational accelerations occur, which cannot be substantially absorbed by the torsional vibration damper 70 either the torsional vibration damping arrangement 10 act and thus the elastically effective stop formation can unfold its effect in the sense described above.
- the torsional vibration damping arrangement 10 in the torque flow direction could also be arranged before the torsional vibration damper 70 or after the torsional vibration damper 72 or between the internal combustion engine 54 and the friction clutch 58 no torsional vibration damper before have to be.
- the two torsional vibration damper 70, 72 can be positioned radially staggered with respect to one another and such torsional vibration damping arrangements 10 can be provided on several areas that follow one another in the torque flow direction.
- a hydrodynamic torque converter, a fluid coupling or the like could also be provided as the starting element, wherein the principles of the present invention can also be used in an advantageous manner if the or a torsional vibration damping arrangement 10 in the torque flow direction is then provided in front of such a starting element or is formed by this th coupling.
- Reference symbol torsional vibration damping arrangement deflection mass carrier
- Torsional vibration damper 72 torsional vibration damper
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- General Engineering & Computer Science (AREA)
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- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018222244.4A DE102018222244A1 (de) | 2018-12-19 | 2018-12-19 | Drehschwingungsdämpfungsanordnung |
| PCT/EP2019/085840 WO2020127416A1 (de) | 2018-12-19 | 2019-12-18 | Drehschwingungsdämpfungsanordnung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3899318A1 true EP3899318A1 (de) | 2021-10-27 |
Family
ID=69061346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19829116.3A Withdrawn EP3899318A1 (de) | 2018-12-19 | 2019-12-18 | Drehschwingungsdämpfungsanordnung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3899318A1 (de) |
| DE (1) | DE102018222244A1 (de) |
| WO (1) | WO2020127416A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011157255A1 (de) * | 2010-06-14 | 2011-12-22 | Schaeffler Technologies Gmbh & Co. Kg | Fliehkraftpendeleinrichtung |
| DE102012217958A1 (de) * | 2012-10-01 | 2014-04-03 | Schaeffler Technologies Gmbh & Co. Kg | Fliehkraftpendel |
| DE102012219737A1 (de) | 2012-10-29 | 2014-04-30 | Zf Friedrichshafen Ag | Torsionsschwingungsdämpfer |
| DE102013217090A1 (de) * | 2013-08-28 | 2015-03-05 | Zf Friedrichshafen Ag | Tilgersystem |
| DE102014211597A1 (de) * | 2014-06-17 | 2015-12-17 | Schaeffler Technologies AG & Co. KG | Fliehkraftpendel |
| DE102015222822A1 (de) * | 2015-11-19 | 2017-05-24 | Zf Friedrichshafen Ag | Dämpfungsanordnung für wenigstens eine Tilgermasse |
| DE102016205765A1 (de) * | 2016-04-07 | 2017-10-12 | Schaeffler Technologies AG & Co. KG | Fliehkraftpendel mit verbessertem Endanschlag |
| DE102016222247A1 (de) * | 2016-11-14 | 2018-05-17 | Schaeffler Technologies AG & Co. KG | Fliehkraftpendeleinrichtung |
| DE102016225190A1 (de) * | 2016-12-15 | 2018-06-21 | Audi Ag | Zweimassenschwungrad zur Drehschwingungsentkopplung sowie Kraftfahrzeug mit einem solchen |
-
2018
- 2018-12-19 DE DE102018222244.4A patent/DE102018222244A1/de active Pending
-
2019
- 2019-12-18 WO PCT/EP2019/085840 patent/WO2020127416A1/de not_active Ceased
- 2019-12-18 EP EP19829116.3A patent/EP3899318A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020127416A1 (de) | 2020-06-25 |
| DE102018222244A1 (de) | 2020-06-25 |
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