EP3155294A1 - Amortisseur de vibrations torsionnelles - Google Patents

Amortisseur de vibrations torsionnelles

Info

Publication number
EP3155294A1
EP3155294A1 EP15733336.0A EP15733336A EP3155294A1 EP 3155294 A1 EP3155294 A1 EP 3155294A1 EP 15733336 A EP15733336 A EP 15733336A EP 3155294 A1 EP3155294 A1 EP 3155294A1
Authority
EP
European Patent Office
Prior art keywords
edge region
torsional vibration
vibration damper
flywheel
flywheel element
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Withdrawn
Application number
EP15733336.0A
Other languages
German (de)
English (en)
Inventor
Hartmut Mende
Pascal Strasser
Alexandre Fischer
Daniel Risser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and 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 and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP3155294A1 publication Critical patent/EP3155294A1/fr
Withdrawn legal-status Critical Current

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
    • F16F15/14—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
    • F16F2226/00—Manufacturing; Treatments
    • F16F2226/04—Assembly or fixing methods; methods to form or fashion parts

Definitions

  • the invention relates to a torsional vibration damper, in particular for the drive train of a motor vehicle.
  • Torsional vibration dampers also called Torsionsschwingungsdämpfer, especially equipped with a centrifugal pendulum device, are well known in the art. So centrifugal pendulum devices are known which on a
  • Flywheel are mounted and dampen torsional vibrations that are caused by an internal combustion engine and are transmitted to the drive train, which is considered disturbing. It is known that the centrifugal pendulum device is attached to a rigid disc-shaped flywheel, on which radially outside a sprocket is placed as a starter ring gear and connected to the flywheel. As a result, the internal combustion engine can be started via the ring gear and, in spite of the flywheel designed as a rigid disk, torsional vibrations can be damped as a flywheel mass element.
  • An embodiment of the invention relates to a torsional vibration damper with a disc-shaped flywheel element with a radially inner first edge region and a radially outer second edge region, wherein between the two edge regions a centrifugal pendulum device with the
  • Flywheel element is connected, wherein the second edge region has an external toothing, which is integrally formed with the second edge region. This avoids that fitting problems arise when attaching a mounted toothed ring. As a result, the risk of imbalance is reduced while simplifying installation, because a one-piece copy in the manufacturing process can certainly be done simultaneously with other manufacturing process steps together.
  • the second edge region is designed as an annular region pointing in the axial direction.
  • the external toothing can be produced in a desired axial width if the second edge region specifies the basis necessary for this because of its axial orientation.
  • the power transmission to the teeth of the external teeth can be optimized.
  • the external toothing is designed as a peripheral sprocket.
  • peripheral drive force transmissions and / or circumferential sensing of, for example, the rotational speed at the toothing can be carried out.
  • the centrifugal pendulum device has at least one annular flange on which at least one flyweight is displaceably arranged.
  • the at least one flange can be connected to the flywheel mass element, on which the flywheel or weights are displaceably arranged in order to be able to damp the torsional vibrations.
  • the connection can be done advantageously by welding or riveting.
  • the centrifugal pendulum device has an annular flange on which in particular centrifugal weights arranged on both sides are displaceably guided or the centrifugal pendulum device has two annular flanges between which arranged centrifugal weights are displaceably guided.
  • the flange or the flanges connected radially between the first edge region and the second edge region with the flywheel mass element, in particular riveted is or are.
  • the respective flange may be connected in a central region with the flywheel mass element and protrude radially outward to receive and guide there the displaceably arranged flyweights.
  • An embodiment of the invention relates to a method for producing a torsional vibration damper, comprising a disc-shaped flywheel element with a radially inner first edge region and a radially outer second edge region, wherein between the two edge regions a centrifugal pendulum device is connected to the flywheel element, wherein the second edge region has an external toothing has, which is integrally formed with the second edge region.
  • the external toothing is introduced by means of material deformation, in particular by means of cold rolling, into the second edge region.
  • Figure 1 is a schematic representation of an embodiment of a torsional vibration damper in half section
  • Figure 2 is a schematic representation of another embodiment of a torsional vibration damper in half section.
  • the torsional vibration damper 1 shows in a half section a first embodiment of a torsional vibration damper 1 with a centrifugal pendulum device 2.
  • the torsional vibration damper 1 has a disk-shaped flywheel element 3, which has a radially inner first edge region 4 and a radially outer second edge region 5.
  • the radially inner first edge region 4 is aligned essentially in the radial direction and preferably serves for fastening the flywheel element 3 to a crankshaft of a combustion engine. motor or similar.
  • the radially inner edge region 4 has a central opening 14 which can receive a shoulder of the crankshaft for centering.
  • holes 15 are provided for screwing the flywheel element 3 with the crankshaft.
  • the radially outer second edge region 5 is aligned substantially in the axial direction and carries an outer toothing 6, which is formed in one piece with the radially outer edge region 5 and thus also with the flywheel element 3.
  • the flywheel element 3 is preferably designed as a rigid flywheel, in particular made of sheet metal or alternatively also of cast material.
  • two regions 7, 8 are provided, which are aligned in the radial direction. These regions 7, 8 are connected to the regions 4, 5 via bulges or graduations 16, so that the flywheel element 3 has a potted structure in section between the radially inner edge region 4 and the radially outer edge region 5.
  • the centrifugal pendulum device 2 is connected to the flywheel mass element 3 in the flat region 7.
  • the flange 9 of the centrifugal pendulum device 2 is connected to the flywheel element 3 by means of the rivet element 10.
  • the flange 9 is arranged starting from the radially inner attachment point 17 projecting radially outward.
  • the flange 9 is flat.
  • flyweights 1 1 are arranged, which are arranged displaceably via bearing elements 18 on the flange 9.
  • 9 guideways 19 are provided both in the flyweights 1 1 and in the flange, which allow a displacement of the flyweights 1 1 both in the circumferential direction and in the radial direction relative to the flange 9.
  • the second edge region 5 is designed as an annular region pointing in the axial direction, which surrounds the flyweights 1 1 radially on the outside.
  • the external toothing 6 is introduced radially outside of the centrifugal pendulum device 2.
  • the outer toothing 6 is preferably introduced by means of material deformation in the second edge region 5, as by means of cold rolling.
  • the outer toothing 6 is preferably designed as a circumferential sprocket.
  • This additional element 12 can serve as additional mass and / or transmitter for a sensor.
  • bores 20 are provided as fastening eyes, which can serve for fastening, for example, a coupling on the flywheel element 3.
  • the flywheel element 3 is designed to be rotatable about the axis 13.
  • FIG. 2 shows in a half section a second embodiment of a torsional vibration damper 21 with a centrifugal pendulum device 22.
  • the flywheel element 23 is substantially identical to the flywheel element 3 of FIG. 1, so that in this respect reference is also made to the description of FIG.
  • the torsional vibration damper 21 likewise has a disk-shaped flywheel element 23, which has a radially inner first edge region 24 and a radially outer second edge region 25.
  • the radially inner first edge region 24 is oriented essentially in the radial direction and preferably serves for fastening the flywheel element 23 to a crankshaft of an internal combustion engine or the like.
  • the flywheel element 23 is also preferably designed as a rigid flywheel, in particular made of sheet metal or alternatively of cast material.
  • the radially outer second edge region 25 is aligned substantially in the axial direction and carries an outer toothing 26, which in turn is formed integrally with the flywheel element 23 according to the inventive concept.
  • the centrifugal pendulum device 22 is connected in the region 27 with the flywheel element 23.
  • the two flanges 29 of the centrifugal pendulum device 22 provided in this exemplary embodiment are connected to the flywheel element 23 by means of the rivet element 30.
  • the two flanges 29 are each formed approximately s-shaped and together they form substantially a structure of a fork, which serves to accommodate the flyweights between the two flanges.
  • the centrifugal weights 31 are arranged in each spaced-apart region of the flanges 29, which are arranged displaceably on the flanges 29 via bearing elements 33.
  • the guide of the bearing elements 33 in turn via guide tracks 34, which are provided in the flanges 29 and the flyweights 31.
  • the second edge region 25 is designed as an annular region pointing in the axial direction, which surrounds the flyweights 31 radially on the outside.
  • the external teeth 26 is introduced radially outside of the centrifugal pendulum device 22.
  • the outer toothing 26 is again preferably introduced by means of material deformation into the second edge region 25 of the flywheel element 23, in particular by means of cold rolling.
  • the external toothing 26 is preferably designed as a peripheral sprocket.
  • an approximately L-shaped additional element 32 is connected to the flywheel element 23. This can serve as additional mass and / or encoder for a sensor.
  • the fastening lugs 35 are again provided, for fastening, for example, a clutch on the flywheel element 23rd
  • Figures 1 and 2 each show at least one annular flange 9, 29, to which at least one flyweight 1 1, 31st
  • the centrifugal pendulum device 2 according to Figure 1 is designed such that it has an annular flange, on which both sides thereof arranged centrifugal weights 1 1 are guided displaceably.
  • the centrifugal pendulum device 22 according to Figure 2 is alternatively designed such that two annular flanges 29 are provided, between which arranged centrifugal weights 31 are guided displaceably.
  • an outer toothing 6, 26 is incorporated radially outward into the disc-shaped flywheel element 3, 23, that is to say into the radially outer edge region 5, 25, which integral with the
  • Flywheel element is formed. This is advantageously done by material deformation, in particular by cold rolling. In addition to the production step of cold rolling, further processing steps can also be carried out in both exemplary embodiments, such as deburring, centering of an encoder etc.
  • the external teeth can be machined simultaneously with the machining of the crankshaft seat in the radially inner region 4, 24. which leads to a time advantage.

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)
  • Pulleys (AREA)

Abstract

L'invention concerne un amortisseur de vibrations torsionnelles (1, 21) comprenant un élément formant masse inertielle (3, 23) en forme de disque qui présente une première région marginale (4, 24) située radialement à l'intérieur et une seconde région marginale (5, 25) située radialement à l'extérieur, un dispositif formant pendule centrifuge (2, 22) étant relié, entre les deux régions marginales, à l'élément formant masse inertielle (3, 23), la seconde région marginale (5, 25) de l'élément formant masse inertielle comportant une denture extérieure (6, 26) qui est conçue d'une seule pièce avec la seconde région marginale (5, 25). En outre, l'invention concerne un procédé de fabrication d'un amortisseur de vibrations torsionnelles.
EP15733336.0A 2014-06-11 2015-06-03 Amortisseur de vibrations torsionnelles Withdrawn EP3155294A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102014211154 2014-06-11
DE102014225701 2014-12-12
PCT/DE2015/200340 WO2015188820A1 (fr) 2014-06-11 2015-06-03 Amortisseur de vibrations torsionnelles

Publications (1)

Publication Number Publication Date
EP3155294A1 true EP3155294A1 (fr) 2017-04-19

Family

ID=53498749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15733336.0A Withdrawn EP3155294A1 (fr) 2014-06-11 2015-06-03 Amortisseur de vibrations torsionnelles

Country Status (4)

Country Link
EP (1) EP3155294A1 (fr)
CN (1) CN106461010B (fr)
DE (1) DE112015002730A5 (fr)
WO (1) WO2015188820A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019126855A1 (de) * 2019-10-07 2021-04-08 Schaeffler Technologies AG & Co. KG Fliehkraftpendel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4118686A1 (de) * 1991-06-07 1992-12-10 Bayerische Motoren Werke Ag Einrichtung zum daempfen von torsionsschwingungen
DE19911562A1 (de) * 1999-03-16 2000-09-21 Mannesmann Sachs Ag Schwingungsdämpfungsvorrichtung
DE10059101B4 (de) * 2000-11-28 2012-12-20 Zf Friedrichshafen Ag Antriebssystem
EP2516887B1 (fr) * 2009-12-21 2019-06-19 Schaeffler Technologies AG & Co. KG Dispositif de pendule centrifuge
WO2011110168A1 (fr) * 2010-03-11 2011-09-15 Schaeffler Technologies Gmbh & Co. Kg Dispositif pendule centrifuge
DE102012004330B4 (de) * 2012-03-07 2018-08-09 Vibracoustic Gmbh Drehzahladaptiver Schwingungstilger

Also Published As

Publication number Publication date
DE112015002730A5 (de) 2017-05-18
CN106461010A (zh) 2017-02-22
CN106461010B (zh) 2019-11-12
WO2015188820A1 (fr) 2015-12-17

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