WO2022199739A1 - Agencement d'amortisseur à bascule pendulaire compact - Google Patents

Agencement d'amortisseur à bascule pendulaire compact Download PDF

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Publication number
WO2022199739A1
WO2022199739A1 PCT/DE2022/100148 DE2022100148W WO2022199739A1 WO 2022199739 A1 WO2022199739 A1 WO 2022199739A1 DE 2022100148 W DE2022100148 W DE 2022100148W WO 2022199739 A1 WO2022199739 A1 WO 2022199739A1
Authority
WO
WIPO (PCT)
Prior art keywords
friction
friction ring
rocker
damper
pendulum
Prior art date
Application number
PCT/DE2022/100148
Other languages
German (de)
English (en)
Inventor
Jean-François HELLER
Original Assignee
Schaeffler Technologies AG & Co. KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2022199739A1 publication Critical patent/WO2022199739A1/fr

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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/02—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
    • F16D7/024—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with axially applied torque limiting friction surfaces
    • F16D7/025—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with axially applied torque limiting friction surfaces with flat clutching surfaces, e.g. discs
    • 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
    • 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
    • F16F15/129—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 characterised by friction-damping means

Definitions

  • the present invention relates to a compact oscillating rocker damper arrangement that is compact in the axial direction. This is preferably used in drive trains of motor vehicles, in particular in hybrid drive trains of motor vehicles.
  • 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 that are preloaded by compression springs and that can be moved tangentially and radially in predetermined movement paths.
  • the oscillating rocker damper therefore has a damping characteristic that is dependent on the torsion angle.
  • additional friction devices are assumed to be known, which also enable frictional damping. These additional friction devices increase the installation space required in the axial direction for installing the oscillating rocker damper.
  • the pendulum rocker damper arrangement comprises a pendulum rocker damper with an input part and an output part which can be rotated about an axis of rotation relative to the input part and rocker elements connecting these, which are biased against each other by spring devices, and a flywheel, wherein at least one friction device for frictional damping between the input part and the output part of the pendulum rocker damper is formed.
  • the pendulum rocker damper arrangement is characterized in that at least one friction device is formed in the axial direction relative to the axis of rotation inside the flywheel and/or at least one friction device in the axial direction relative to the axis of rotation outside of the pendulum rocker damper.
  • the term friction device is understood to mean that it has at least two friction partners, one of which is non-rotatably connected to the input part and the other non-rotatably connected to the output part, with the friction partners being in frictional contact with one another and thus the frictional damping when there is a relative movement between the input part and cause output part.
  • At least one of the friction partners is preferably made of a plastic.
  • the spring devices preferably each comprise at least one compression spring, particularly preferably two compression springs each, which are configured coaxially. Movement paths are formed in the input part and/or in the output part, via which there can be predetermined tangential and radial displacements of the rocker elements against the spring action of the spring devices in the event of rotational irregularities and thus relative movements between the input part and the output part, which can lead to a damping characteristic dependent on the torsion angle of the pendulum rocker damper.
  • the at least one friction device permits an additional damping function, which causes frictional damping between the input part and the output part.
  • the design of the at least one friction device within the flywheel results in a compact rocker damper arrangement.
  • the at least one friction device By arranging the at least one friction device in the axial direction outside of the pendulum rocker damper, it is also possible to use space outside of the pendulum rocker damper to accommodate the at least one friction unit, thus enabling a compact design in the axial direction.
  • a configuration is preferred in which the at least one friction device is located within, preferably both in the axial and in the radial direction within, the Flywheel is formed.
  • the thickness of the flywheel in the axial direction can be used to accommodate the at least one friction device.
  • the at least one friction device is preferably designed coaxially to the axis of rotation.
  • two friction devices are formed, which are formed at de inside the flywheel and coaxially to the axis of rotation. The use of two friction devices allows a precise definition of the additional frictional damping, which acts in addition to the damping characteristic of the pendulum seesaw damper.
  • a first friction device which includes a first friction ring, a first support disk, a first retaining plate and a first plate spring, the first friction ring being non-rotatably connected to the output part and the first plate spring and the first retaining plate being non-rotatably connected to the input part , wherein the first support disk is formed between the first support disk and the first retaining plate in the axial direction with respect to the axis of rotation between the first plate spring and the first retaining plate, wherein the first friction ring is formed between the first support disk and the first retaining plate in the axial direction with respect to the axis of rotation and the first plate spring on the first support disc exerts a force in the direction of the first retaining plate, which presses the first support disc against the first friction ring.
  • the first friction disk is made of a corresponding material with a predeterminable coefficient of friction, as are the first support disk and the first retaining plate.
  • the first plate spring and the corresponding spring force are also selected depending on the required damping component.
  • the first supporting disk is preferably made of a metal, in particular of a steel.
  • the first friction ring is non-rotatably connected via a support plate to a hub element of the transition part.
  • the hub element can be connected to a shaft, for example an input shaft of a clutch or a transmission.
  • a second friction device which has a second friction ring, which is non-rotatably connected to the output part, wherein the second friction device also has a second disc spring and a second retaining plate, which are non-rotatably connected to the input part, and a two te Support disk, wherein the second friction ring is formed in the axial direction relative to the axis of rotation between the second support disk and the second retaining plate and the second disc spring exerts a force on the second support disk in the direction of the second retaining plate, which forces the second support disk against the second friction ring presses.
  • the second friction disk is made of a corresponding material with a predeterminable coefficient of friction, as are the second support disk and the first retaining plate.
  • the second plate spring and the corresponding spring force are also selected depending on the required damping component.
  • the second supporting disk is preferably made of a metal, in particular a steel.
  • the second friction ring is preferably connected in a torque-proof manner to the outer circumference of a hub element of the output part. This can be done, for example, by a corresponding de toothing on the outer circumference of the hub element, in which case the second friction ring has a corresponding toothing. This enables the formation of a second friction means formed close to the hub member in the radial direction.
  • a first friction device is configured with a first friction ring and a second friction device is configured with a second friction ring, and the second friction ring is configured concentrically within the first friction ring relative to the axis of rotation.
  • Both the first friction device and the second friction device are preferably arranged inside the flywheel and/or axially outside the rocker-type damper.
  • the combination of two friction devices allows the necessary frictional damping components to be precisely adjusted and adapted to the application.
  • the flywheel and the input part of the swing rocker damper are connected to one another by a positive connection, in particular one or more riveted connections. This allows a simple pre-assembly of the rocker damper on the flywheel.
  • the pendulum rocker damper arrangement described is preferably formed in a particularly advantageous manner in drive trains of motor vehicles.
  • This drive train preferably has an internal combustion engine as the torque source, in particular in combination with at least one electric drive machine.
  • a hybrid drive train in particular for a motor vehicle, comprising an internal combustion engine with a crankshaft and at least one electric drive machine, in which a pendulum rocker damper arrangement is designed as described, in which the flywheel and the input part of the pendulum rocker damper are non-rotatably connected to the crankshaft .
  • a motor vehicle comprising such a hybrid drive train is proposed. Furthermore, a motor vehicle is proposed, comprising a pendulum rocker damper arrangement as described.
  • first”, “second”, etc. primarily (only) serve to distinguish between several similar objects, sizes or processes, i.e. in particular no dependency and/or sequence of these objects , sizes or processes to each other. Should a dependency and/or order be necessary, this is explicitly stated here or it is obvious to the person skilled in the art when studying the specifically described embodiment.
  • Fig. 2 an example of a spring rocker damper assembly with spring rockers damper
  • FIG. 3 shows a section of the example from FIG. 2; FIG. and
  • Fig. 4 is an exploded view of part of the spring rocker damper arrangement from Fig. 2.
  • 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 Figures 2 to 4.
  • the hybrid 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 petrol or diesel engine, which can optionally be connected via clutches 5 , 6, 7 with a gear 8 can be coupled.
  • 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 clutches 6, 7 (forming partial clutches of a double clutch device), either the first transmission input shaft 9 (via the first clutch 6) or the second transmission input shaft 10 (via the second clutch 7) can be coupled to a central carrier 11.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

En disposant les dispositifs de frottement (111, 112) radialement à l'intérieur du volant (13) et axialement à l'extérieur de l'amortisseur à bascule pendulaire (100), un agencement d'amortisseur à bascule pendulaire compact axialement (108) est mis à disposition, lequel peut être utilisé même avec peu d'espace d'installation disponible et est facile à assembler. Il est de préférence utilisé dans la chaîne cinématique d'un véhicule automobile (2), en particulier dans une chaîne cinématique hybride (1) d'un véhicule automobile (2).
PCT/DE2022/100148 2021-03-23 2022-02-24 Agencement d'amortisseur à bascule pendulaire compact WO2022199739A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021107235.2 2021-03-23
DE102021107235.2A DE102021107235B3 (de) 2021-03-23 2021-03-23 Kompakte Pendelwippendämpferanordung

Publications (1)

Publication Number Publication Date
WO2022199739A1 true WO2022199739A1 (fr) 2022-09-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2022/100148 WO2022199739A1 (fr) 2021-03-23 2022-02-24 Agencement d'amortisseur à bascule pendulaire compact

Country Status (2)

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DE (1) DE102021107235B3 (fr)
WO (1) WO2022199739A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023104231A1 (fr) * 2021-12-09 2023-06-15 Schaeffler Technologies AG & Co. KG Amortisseur à balancier pendulaire doté d'axe de rotation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018215018A1 (fr) 2017-05-23 2018-11-29 Schaeffler Technologies AG & Co. KG Amortisseur d'oscillations de torsion comportant un limiteur de couple de rotation
DE102018108435A1 (de) * 2018-04-10 2019-10-10 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer
DE102020112644A1 (de) * 2020-04-01 2021-10-07 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018108441A1 (de) 2018-04-10 2019-10-10 Schaeffler Technologies AG & Co. KG Torsionsschwingungsdämpfer, Kupplungsscheibe und Kupplung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018215018A1 (fr) 2017-05-23 2018-11-29 Schaeffler Technologies AG & Co. KG Amortisseur d'oscillations de torsion comportant un limiteur de couple de rotation
DE102018108435A1 (de) * 2018-04-10 2019-10-10 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer
DE102020112644A1 (de) * 2020-04-01 2021-10-07 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023104231A1 (fr) * 2021-12-09 2023-06-15 Schaeffler Technologies AG & Co. KG Amortisseur à balancier pendulaire doté d'axe de rotation

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Publication number Publication date
DE102021107235B3 (de) 2022-01-05

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