EP4341575A1 - Pendelwippendämpfer mit radial innenliegenden anschlägen - Google Patents
Pendelwippendämpfer mit radial innenliegenden anschlägenInfo
- Publication number
- EP4341575A1 EP4341575A1 EP22723017.4A EP22723017A EP4341575A1 EP 4341575 A1 EP4341575 A1 EP 4341575A1 EP 22723017 A EP22723017 A EP 22723017A EP 4341575 A1 EP4341575 A1 EP 4341575A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rocker
- damper
- input part
- stop
- pendulum
- 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- Withdrawn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
Classifications
-
- 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
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/1204—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon with a kinematic mechanism or gear system
- F16F15/1205—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon with a kinematic mechanism or gear system with a kinematic mechanism, i.e. linkages, levers
-
- 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
- F16F2230/0052—Physically guiding or influencing
- F16F2230/007—Physically guiding or influencing with, or used as an end stop or buffer; Limiting excessive axial separation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Definitions
- the present invention relates to a rocker-type damper, in particular for use in a drive train of a motor vehicle, which has at least one stop that limits the relative rotation of the components of the rocker-type damper with respect to one another and is designed radially on the inside.
- Oscillating rocker dampers are known, for example, from WO 2018/215018 A1, which are used to dampen rotational irregularities in the drive train of motor vehicles.
- the pendulum rocker dampers have rocker elements which are prestressed by compression springs and which can be displaced tangentially and radially in predetermined trajectories and thereby dampen rotational irregularities. Depending on the amplitude of the torsional irregularities, damage to the rocker damper can occur.
- the object of the present invention is to at least partially overcome the problems known from the prior art.
- the oscillating rocker damper according to the invention comprises an input part and an output part, which can be rotated relative to the input part about an axis of rotation, and connecting these rocker elements, which are preloaded against one another via spring devices, with the input part, output part and rocker elements having movement paths in which rollers are designed to be movable, which on the one hand A transition part and the rocker elements and on the other hand the rocker elements and the Connect the output part to each other in a flexible manner.
- the pendulum rocker damper is characterized in that the output part has at least one stop for the input part or the input part has a stop for the output part in order to limit the deflection relative to one another, with the at least one stop being formed radially inside the movement paths in relation to the axis of rotation .
- the pendulum rocker damper preferably also includes at least one friction device for frictional damping between the input and output parts, which changes the damper characteristic curve specified by the spring device and the masses of the rocker elements and the movement paths.
- the spring devices each contain at least one compression spring.
- the movement paths are selected in such a way that the rocker elements can be displaced radially and tangentially with respect to the axis of rotation.
- the formation of the at least one stop means that a maximum angle of rotation between the input part and the output part can be defined, which cannot be exceeded by the stop, so that damage to the rocker-type rocker damper is avoided.
- the at least one stop is preferably formed on the output part and in a recess of the input part, in which the spring devices are formed.
- the recesses form a kind of window in which the spring devices are formed. These have an extension in the axial direction in relation to the axis of rotation, which makes the recess in the input part necessary.
- This space can also be used advantageously for forming the at least one stop, so that the formation of the at least one stop does not increase the installation space required in the axial direction.
- the at least one stop is formed on the output part and in a circular arc-shaped recess in the input part. At the same time, this allows the at least one stop to be guided and allows a simple definition of the maximum deflection angle, which is reached when the stop comes into contact with a peripheral end of the arcuate recess.
- the output flange can be produced in a number of ways as a stamped part from sheet metal. The formation of the stop, for example, by a bending process is then easily possible. This permits a simple structure and simple assembly of the pendulum rocker damper, since the output flange can then be pushed onto the hub element, for example, and connected to it, for example by a caulking process.
- the at least one stop is preferably formed radially on the inside of the input part with respect to the axis of rotation. This means in particular that the at least one stop is configured on a radially inner edge of the input part.
- This enables an alternative, simple construction, for example when it is not possible due to the circumstances to add stops to the output part of the pendulum rocker damper.
- a compact construction of the rocker-type rocker damper is advantageously possible without additional axial installation space.
- the at least one stop is preferably designed as a hook which extends in the axial direction in relation to the axis of rotation.
- a hook can be produced in a simple manner, for example by a forming process from sheet metal, from which the output part or input part is produced.
- the number of stops preferably corresponds to the number of spring devices. This evens out the shock loads when the maximum deflection angle is reached over the circumferential direction and reduces the load on the elements of the pendulum rocker damper.
- a hybrid drive train comprising an internal combustion engine with a crankshaft and at least one electric drive machine with a rocker-type damper as described here, the crankshaft being non-rotatably connected to the input part of the rocker-type damper.
- the rocker damper is formed between the internal combustion engine and a separating clutch.
- an embodiment is preferred in which the input part of the pendulum rocker damper is connected to the crankshaft and the output part is non-rotatably connected to a transmission input shaft.
- a motor vehicle comprising such a hybrid drive train. Furthermore, a motor vehicle is proposed, comprising a pendulum rocker damper as described.
- Fig. 2 - 4 a first example of a pendulum rocker damper in different views
- 5 shows a flange of an output part according to the first example of a pendulum rocker damper; 6: a view of a second example of a rocker damper;
- Fig. 8 a flange of a starting part according to the second example
- FIG. 9 the flange according to FIG. 8 in the installed state.
- Fig. 10 a detail of a third example of a seesaw damper.
- Fig. 1 shows schematically the basic structure of an example of a hybrid drive train 1 with a rocker damper 100, which is explained in more detail with reference to the other figures.
- the flybrid drive train 1 is used in a motor vehicle 2, which is only partially shown, and is used to drive a plurality of wheels 3 of the motor vehicle 2.
- the hybrid drive train 1 has an internal combustion engine 4, in particular in the form of a gasoline or diesel engine, which can be driven either via clutches 5, 6 , 7 can be coupled to a transmission 8 .
- the transmission 8, preferably an automatic transmission has on its two transmission input shafts 9, 10 two clutches 6, 7 forming a double clutch device. By means of these two clutches 6 (forming partial clutches of a double clutch device),
- first transmission input shaft 9 via the first clutch 6
- second transmission input shaft 10 via the second clutch 7
- first transmission input shaft 9 can be coupled to a central carrier 11.
- the carrier 11 is permanently rotationally connected to a rotor 12 of an electric drive machine 13 .
- the electric drive machine 13 is arranged axially parallel to the carrier 11 , the carrier 11 in turn being arranged coaxially to a crankshaft 14 of the internal combustion engine 4 .
- the crankshaft 14 is shown in simplified form as the axis of rotation 15 .
- the rotor 13 is mounted on a rotor shaft 16 and the rotor shaft 16 is a gear stage 17, here a spur gear stage, with the carrier 11 permanently rotationally coupled.
- the carrier 11 is also part 18 of the separating clutch 5 with an output-side (second) clutch component.
- An input-side (first) Kupplungsbe component 19 of the separating clutch 5 is in turn coupled to the rocker damper 100 .
- the pendulum rocker damper 100 is thus used between the crankshaft 14 and the separating clutch 5, in particular the first clutch component 19 of the separating clutch 5, acting.
- the separating clutch 5 is preferably designed as a friction clutch.
- the first clutch 6 and the second clutch 7 are preferably designed as friction clutches, in particular special friction clutches.
- the internal combustion engine 4 can be decoupled from the rest of the hybrid drive train 1 via the separating clutch 5 , so that the hybrid drive train 1 is operated exclusively electrically via the electric drive motor 13 .
- the transmission 8 of the hybrid drive train 1 is connected on the output side via a differential stage 20 to the wheels 3 of the motor vehicle 2 in order to drive the wheels 3 according to the drive state of the hybrid drive train 1 .
- the transmission 8 is connected to the separating clutch 5 via an intermediate shaft 21 .
- the hybrid drive train 1 is preferably used in such a way that the crankshaft 14 and thus also the carrier 11 with the first clutch 6 and the second clutch 7 and the separating clutch 5 are arranged coaxially and transversely, namely perpendicularly, to a longitudinal axis 22 of the motor vehicle 2.
- the crankshaft 14 and thus also the carrier 11 with the first clutch 6 and the second clutch 7 and the separating clutch 5 are arranged coaxially and transversely, namely perpendicularly, to a longitudinal axis 22 of the motor vehicle 2.
- an alignment of these components along and thus parallel to the longitudinal axis 22 of the vehicle is also possible and preferred.
- the pendulum rocker damper 100 has an axis of rotation 15 which is defined before given to coaxially with the crankshaft 14 of the internal combustion engine 4 with which the pendulum rocker damper 100 is connected as set out below.
- the terms axial, radial and in the circumferential direction are each defined in relation to the axis of rotation 15 .
- the term axial and axial direction is used as one direction understood along or parallel to the axis of rotation 15.
- radial and radial direction is understood as a direction perpendicular to the axis of rotation 15 .
- circumferential direction is understood to mean a direction along an imaginary circular line running concentrically to the axis of rotation 15 .
- tangential is understood to be tangential with respect to a point on a circle about the axis of rotation 15 in a plane perpendicular to the axis of rotation 15 .
- the rocker damper 100 has an input part 101 . This is connected to the crankshaft 14, not shown here, of the internal combustion engine 4, in particular via a flywheel, not shown, which is non-rotatably connected to the crankshaft 14.
- the input part 101 is also referred to as a driver disk.
- the input part 101 has movement paths 102 in which rollers 103 be due to which the input part 101 is connected to rocker elements 104 .
- the rocker elements 104 each have movement paths 105 in which the rollers 103 can move.
- each spring means 106 includes a compression spring 107 oriented in a tangential direction.
- spring devices 106 comprising a plurality of springs, in particular two coaxial springs each.
- other numbers of rocker elements 104 and spring devices 106 can be formed, in particular three each.
- the rocker elements 104 can therefore move outwards against the action of the spring devices 106 when rotational irregularities are present and then move inwards again under the effect of the restoring force of the spring devices 106 .
- the rocker elements 104 are connected via further rollers to an output part 108 which includes an output flange 109 .
- This output flange 109 is non-rotatably connected to a hub element 110 with an internal toothing 111, via which the output part 108 in particular is directly Telbar with an input shaft 23 of the separating clutch 5 of the hybrid drive train 1 is connected.
- the seesaw damper 100 being formed radially outside on the pendulum.
- the input part has a stop radially on the outside, against which, for example, a radially outer area of a flange of the output part strikes and thus defines a maximum deflection. If the space available radially on the outside is not sufficient, this can prevent the installation of a rocker damper.
- the pendulum rocker damper 100 proposed here can be used here.
- This has two stops 112 radially inside the spring devices 106 and radially inner half of the rollers 103 .
- these are designed as hooks protruding in the axial direction, against which the input part 101 (the slave disk with) strikes when the maximum deflection between the input part 101 and the output part 108 is reached.
- FIGS. 2 and 3 show the respective maximum possible deflections in which the stop 112 is reached.
- 4 shows the neutral position, in which there is no deflection between the input part 101 and the output part 108 . In the neutral position (FIG. 4), the compression springs 107 are prestressed in a rest position, while in the maximum deflection (FIG.
- the compression springs 107 are maximally compressed. Compression springs 107 cause the return from the maximum deflection (Fig. 2, Fig. 3) to the neutral position (Fig. 4).
- the hooks 112 are in an area in which the spring devices 106 are formed and in which the input part 101 (the driver disk) has recesses 116 in which the spring devices 106 are formed.
- the output flange 109 also has a receptacle 113, the shape and size of which corresponds to the outer contour of the hub element 110, so that the output flange 109 is pushed onto the hub element 110 and can then be connected to it.
- the stops 112 are formed as hooks 114, which are in axial direction of a base body 115 of the output flange 109 extend away. Each hook 114 encloses an essentially right angle with the base body 115 . Hook 114 and base body 115 are formed in particular by forming a metal sheet.
- the stops 112 are located radially within movement paths 119 for the rollers 103, via which the output flange 109 and thus the output part 108 are connected to the rocker elements 104.
- FIG. 6 shows a second example of a rocker damper 100.
- the hook 112 is also formed on the output flange 109 in this example, but this is not formed in the area of the recesses 116, but rather within a circular arc-shaped recess 117, which is designed as a slot-shaped recess in the input part 101 for receiving a hook 114, which is located on an arc of a circle relative to the axis of rotation 15 .
- the peripheral ends 118 act here as stops 112. This can also be seen in particular in FIG. 7, in which a maximum deflection between the input part 101 and the output part 108 is reached.
- the output flange 109 has two stops 112 and consequently also two recesses 117 in the shape of a circular arc in the input part 101.
- Fig. 8 shows an output flange 109 according to the second example of a pendulum damper 100. This has two stops 112 formed as hooks 114, which lie radially within movement paths 119 for the rollers 103, via which the output flange 109 and thus the output part 108 the rocker elements 104 are connected. Otherwise, reference is made to the description of FIG. 5 above in order to avoid repetition.
- Fig. 9 shows the output flange 109 according to the second example in the installed state.
- the stops 112 are located radially inside the movement paths 119 for the rollers 103.
- 10 shows a detail of an alternative embodiment of the seesaw damper 100, in particular according to the first example.
- the stop 112 or the stops 112 is not formed on the output flange 109 but rather on the input part 101 in a corresponding radial position, so that these form a stop for the output flange 109 .
- the stop 112 is formed as a hook 114, in particular by forming a metal sheet to form the input part 101.
- the stop 112 is perpendicular to the input part 101 from.
- the pendulum rocker damper 100 has on its output part 108, in particular an output flange 109, stops 112 for the input part 101 or on the input part 101 stops 112 for the output part 108 in order to limit the relative deflection effect between the input part 101 and the output part 108.
- the stops 112 are designed radially inside the rollers 103 and their trajectories.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- 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 |
|---|---|---|---|
| DE102021112758.0A DE102021112758B3 (de) | 2021-05-18 | 2021-05-18 | Pendelwippendämpfer mit radial innenliegenden Anschlägen |
| PCT/DE2022/100333 WO2022242791A1 (de) | 2021-05-18 | 2022-05-03 | Pendelwippendämpfer mit radial innenliegenden anschlägen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4341575A1 true EP4341575A1 (de) | 2024-03-27 |
Family
ID=81648255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22723017.4A Withdrawn EP4341575A1 (de) | 2021-05-18 | 2022-05-03 | Pendelwippendämpfer mit radial innenliegenden anschlägen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4341575A1 (de) |
| DE (1) | DE102021112758B3 (de) |
| WO (1) | WO2022242791A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021122870B3 (de) | 2021-09-03 | 2022-12-22 | Schaeffler Technologies AG & Co. KG | Torsionsschwingungsdämpfer |
| DE202022104910U1 (de) | 2021-09-06 | 2022-09-07 | Schaeffler Technologies AG & Co. KG | Drehmoment-Übertragungseinrichtung sowie eine Antriebsanordnung |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001074102A (ja) | 1999-06-29 | 2001-03-23 | Aisin Seiki Co Ltd | トルク変動吸収装置 |
| DE102014206498A1 (de) * | 2013-04-19 | 2014-10-23 | Schaeffler Technologies Gmbh & Co. Kg | Vorrichtung zur Drehschwingungsisolation |
| DE102014210685A1 (de) * | 2013-06-21 | 2014-12-24 | Schaeffler Technologies Gmbh & Co. Kg | Drehmomentübertragungseinrichtung |
| FR3050497B1 (fr) * | 2016-04-22 | 2018-04-27 | Valeo Embrayages | Dispositif de transmission de couple |
| JP6903157B2 (ja) | 2017-05-23 | 2021-07-14 | シェフラー テクノロジーズ アー・ゲー ウント コー. カー・ゲーSchaeffler Technologies AG & Co. KG | トルクリミッタを備えるトーショナルバイブレーションダンパ |
| DE102017130829A1 (de) * | 2017-12-21 | 2019-06-27 | Schaeffler Technologies AG & Co. KG | Drehschwingungsdämpfer |
| DE102018108142A1 (de) * | 2018-04-06 | 2019-10-10 | Schaeffler Technologies AG & Co. KG | Kupplungsscheibe mit Pendelwippendämpfer mit nur einer Bewegungsrichtung zwischen seinen Flanschbereichen; sowie Reibkupplung |
| DE102018108414A1 (de) * | 2018-04-10 | 2019-10-10 | Schaeffler Technologies AG & Co. KG | Drehschwingungsdämpfer |
| JP2020133813A (ja) * | 2019-02-22 | 2020-08-31 | 株式会社エクセディ | 回転装置 |
| DE102019115747A1 (de) * | 2019-06-11 | 2020-12-17 | Schaeffler Technologies AG & Co. KG | Riemenscheibenentkoppler mit einer Rotationsachse |
| DE102019120164A1 (de) * | 2019-07-25 | 2021-01-28 | Schaeffler Technologies AG & Co. KG | Pendelwippendämpfer mit nicht-linearer Druckfederkennlinie und Antriebsstrang eines Kraftfahrzeugs |
| DE102020117261A1 (de) | 2020-05-06 | 2021-11-11 | Schaeffler Technologies AG & Co. KG | Torsionsschwingungsdämpfer mit einer Rotationsachse für einen Antriebsstrang |
| DE102021105447B3 (de) * | 2021-03-08 | 2022-06-23 | Schaeffler Technologies AG & Co. KG | Pendelwippendämpfer mit einer Verdrehachse |
-
2021
- 2021-05-18 DE DE102021112758.0A patent/DE102021112758B3/de not_active Expired - Fee Related
-
2022
- 2022-05-03 EP EP22723017.4A patent/EP4341575A1/de not_active Withdrawn
- 2022-05-03 WO PCT/DE2022/100333 patent/WO2022242791A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022242791A1 (de) | 2022-11-24 |
| DE102021112758B3 (de) | 2022-08-11 |
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