WO2017152899A1 - Pendule centrifuge - Google Patents

Pendule centrifuge Download PDF

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Publication number
WO2017152899A1
WO2017152899A1 PCT/DE2017/100111 DE2017100111W WO2017152899A1 WO 2017152899 A1 WO2017152899 A1 WO 2017152899A1 DE 2017100111 W DE2017100111 W DE 2017100111W WO 2017152899 A1 WO2017152899 A1 WO 2017152899A1
Authority
WO
WIPO (PCT)
Prior art keywords
pendulum
cheeks
centrifugal
roller
flange
Prior art date
Application number
PCT/DE2017/100111
Other languages
German (de)
English (en)
Inventor
Peter Roland
Hartmut Mende
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
Priority to DE112017001258.9T priority Critical patent/DE112017001258A5/de
Publication of WO2017152899A1 publication Critical patent/WO2017152899A1/fr

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
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/04—Friction

Definitions

  • the invention relates to a centrifugal pendulum with a rotatably mounted about a rotation axis arranged pendulum and this distributed over the circumference and arranged by means of at least one pendulum bearing on this pendulum suspended pendulum masses with two sides of the pendulum, by means of at least one pendulum radially inside the at least one pendulum bearing sweeping Zwi - Pendulum connected pendulum cheeks, wherein the at least one self-aligning bearing is formed from a arranged on the at least one intermediate track and a complementary thereto, arranged on the pendulum raceway and a rolling on these tracks and axially secured by the pendulum rollers role.
  • Centrifugal pendulum serve the speed-adaptive torsional vibration isolation and are used in particular in drive trains with a torsionally vibrating internal combustion engine.
  • the torsional vibration isolation takes place by pendulum masses pendulum suspended from a pendulum flange in the centrifugal force field, temporarily storing energy recorded as potential energy from torque peaks and then returning it to the drive train.
  • centrifugal pendulum due to the pendulum motion of the pendulum masses, their vibration angle, their mass and the like tuned to one or more vibration orders of the vibration excitation source, such as a torsional vibration engine. Due to friction or attacks of pendulum masses this vibration order can be disturbed, so that the efficiency of the centrifugal pendulum decreases.
  • a centrifugal pendulum can - as known for example from WO2014 / 082629 A1 - to a one-mass flywheel, for example a single-mass flywheel made of sheet metal.
  • WO2014 / 023303 A1 and DE 10 2013 201 981 A1 are known, one or more centrifugal pendulum on a torsional vibration damper, according to the publication WO2014 / 1 14 280 A1 on a clutch disc, according to the document EP 2 600 030 A1 to a hydrodynamic torque converter, on a
  • a friction clutch or be provided at similar locations of the drive train.
  • pendulum cheeks may be provided.
  • the two pendulum cheeks are interconnected by means of two radially spaced within two pendulum bearings the pendulum by means of two circumferentially spaced intermediate pieces, the pendulum bearings of a arranged on the spacers track and a complementary thereto, arranged on the pendulum flange track and one on this
  • the object of the invention is the advantageous development of a centrifugal pendulum.
  • it is the object of the invention to increase the effect of a centrifugal pendulum with given oscillation order.
  • the friction of the pendulum cheeks against the rollers should be reduced.
  • the object is solved by the subject matter of claim 1.
  • the dependent of the claim 1 claims give advantageous embodiments of the subject matter of claim 1 again.
  • the proposed centrifugal pendulum is particularly intended for a drive train of a motor vehicle and can be used separately as a speed-adaptive torsional vibration damper.
  • the centrifugal pendulum can be integrated into a further device of the drive train, for example on and / or output side in a torsional vibration damper, for example in a dual mass flywheel, in a clutch disc, in a friction clutch, in a hydrodynamic torque converter, to a rotor of an electric machine or like.
  • centrifugal pendulum When arranging the centrifugal pendulum in conjunction with a hydrodynamic torque converter, the centrifugal pendulum inside or outside a
  • Transducer housing be housed, so wet or dry operated.
  • the pendulum flange of the centrifugal pendulum pendulum can be arranged on an input part and / or an output part of a torsional vibration damper of a torque converter lockup clutch, for example a so-called lock-up damper.
  • pendulum flange At the pendulum flange at least two, preferably between two and six distributed over the circumference, arranged by means of two rollers spaced from each other in the circumferential direction rolling pendulum masses are arranged.
  • the pendulum flange rotating about the axis of rotation absorbs the pendulum masses on the self-aligning bearings with the rollers along a swinging angle.
  • the pendulum masses contain on both sides of the pendulum flange arranged pendulum cheeks, which are connected by means of one or more intermediate pieces.
  • the pendulum masses are produced in one piece from sheet metal, for example stamped and folded over at the intermediate pieces, preferably two spacers spaced in the circumferential direction, so that a U-shaped transverse piece is formed. results in a cut.
  • the spacers can pass through the pendulum in the construction of the pendulum masses on closed recesses or overlap the pendulum, in particular in one-piece design of the pendulum masses radially outwardly or radially inwardly open recesses.
  • the spacers advantageously form the pendulum mass side raceways of the pendulum bearings. Radially opposite corresponding complementary raceways are formed on the pendulum. On the tracks rolls off to form a pendulum bearing in each case a role, so that under centrifugal force of the rotating pendulum is provided a pendulum receiving the pendulum masses relative to the pendulum.
  • the rollers each roll on tracks with predetermined shape curves, which are provided complementary to each other in the pendulum masses and in the pendulum. Due to the shape of the form curves of the raceways while the pendulum is given as pendulum vibration of a pendulum mass, for example, a pendulum oscillation in free form or a pendulum oscillation according to a bifilar suspended parallel or trapezoidal on the pendulum mass pendulum mass. By appropriate interpretation of these shape curves, the swing angle of the pendulum masses and their mass and other parameters, the vibration order of the centrifugal pendulum is set.
  • bump stops to limit the swing angle and hard stops of the pendulum masses on the pendulum facilities, for example, radially within the pendulum masses arranged buffers or energy storage, which prevent falling over the axis of rotation arranged pendulum masses with insufficient centrifugal force radially inward, and the like be provided.
  • Circumferentially adjacent pendulum masses can be coupled to one another by means of spring elements.
  • the pendulum cheeks against the rollers on a friction-reducing contact surface.
  • the wear of the rollers and / or the pendulum cheeks can be reduced in particular.
  • the Reibwertverring ceremonies between pendulum cheeks and rollers can be done by reducing the friction between them and / or by reducing the coefficient of friction.
  • contact surfaces of the pendulum cheeks to the rollers and / or the end faces of the rollers can be correspondingly surface-treated, for example polished and / or coated.
  • the contact surfaces may be smaller, equal or larger than the cross-sectional areas of the rollers.
  • the contact surface of the pendulum mounts in particular when using the same or similar materials for roller and pendulum mass, for example steel, compared to the rollers smaller than a cross-sectional area of the roller can be formed axially between the contact surfaces.
  • the contact surface of the pendulum masses smaller than a swept over an intended swing angle of the pendulum masses of the role surface can be reduced compared to the rollers.
  • the contact surfaces can contact at each angular position of the pendulum mass or pendulum beam, the central axis of the roller or contact surfaces outside the central axes of the roller to form a uniform formation of the contact between the roller and pendulum.
  • the contact surfaces to the role may be provided on the pendulum cheeks as crowned elevations.
  • the elevations may, for example, be simulated arcuately the web of the role on the swing angle.
  • the elevations may be formed integrally from the pendulum cheeks, for example, be formed on these.
  • the elevations may be embossed as beads in the opposite side of the pendulum cheeks in such a way that material is formed on the roll zugwandten side of the pendulum cheeks accordingly.
  • a surveys having contact body such as an insert of a clip or the like.
  • the contact body may be made of metal or plastic.
  • the contact body can be locked as clipped with the roller facing surface or introduced into this recess of the pendulum cheek and / or formed as a disc part at least surround a part of the pendulum beam.
  • the contact body can be introduced into an opening of the pendulum cheek, for example, be pressed.
  • the contact body may be axially supported against the roller on the pendulum cheek.
  • the contact body for this purpose may have a widened against the opening, serving as a stop collar or the like.
  • Figure 1 is a centrifugal pendulum with pendulum cheeks with raised contact surfaces in a schematic partial sectional view
  • FIG. 2 is a pendulum beam of centrifugal pendulum of Figure 1 in a 3D view.
  • FIG. 1 shows a schematic representation of the upper part of the centrifugal pendulum pendulum 1 arranged rotatably about the axis of rotation d in section.
  • the pendulum masses 3 in the centrifugal force field of the rotating about the rotation axis d pendulum 2 are added pendulum.
  • the pendulum masses are built in the embodiment shown from the arranged on both sides of the pendulum flange 2 with axial play pendulum cheeks 4 and the intermediate piece 5, but may also be integrally formed from sheet metal, the pendulum cheeks 4 are folded over the intermediate piece 5.
  • the pendulum cheeks 4 are connected to the intermediate piece 5 in the illustrated built form in a non-visible manner, for example riveted.
  • the pendulum masses 3 are added to the pendulum flange by means of the pendulum bearing 6 pendulum or pendulous.
  • the pendulum bearing 6 pendulum or pendulous Preferably, two circumferentially spaced pendulum bearings 6 are provided between the pendulum flange 2 and each of a pendulum mass 3.
  • the self-aligning bearings 6 are formed from the arc-shaped raceways 8 formed in the pendulum flange 2 and the raceways 7 which are curved in the intermediate pieces 5 of the pendulum masses 3 and curved in a complementary manner to the raceways 8 and the rollers 9 rolling on them.
  • the rollers 9 are axially secured between the pendulum cheeks 4 added.
  • the faces 10 of the rollers 9 facing surfaces 1 1 of the pendulum cheeks 4 have axially elevated elevations 12, the contact surfaces 13 are reduced compared to the cross section of the rollers 9 on the raceways 7, 8.
  • the elevations 12 are integrally formed from the pendulum cheeks 4. 2 shows one of the pendulum cheeks 4 of the centrifugal pendulum 1 of Figure 1 in SD representation.
  • the integrally provided with the pendulum beam 4 elevations 12 are integrally formed.
  • the beads 15 are integrally formed on the surface 1 1 opposite surface 14 of the pendulum beam 4, so that on the opposite side of the pendulum beam 4, the survey 12 is issued.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne un pendule centrifuge (1) comprenant un flasque de pendule (2) disposé de manière à pouvoir tourner autour d'un axe de rotation (d) et des masses pendulaires (3) suspendues de manière oscillante et répartie sur la périphérie du flasque au moyen d'au moins un palier de pendule (2), comprenant deux joues de pendule (4) disposées de part et d'autre du flasque de pendule (2) et reliées au moyen d'au moins une pièce intermédiaire (5) traversant le flasque de pendule (2) radialement à l'intérieur de l'au moins un palier de pendule (6), l'au moins un palier de pendule (6) étant formé par un chemin de roulement (7) disposé sur l'au moins une pièce intermédiaire (5) et par un chemin de roulement (8) complémentaire à celui-ci, disposé sur le flasque de pendule (2), ainsi que par un rouleau (9) roulant sur ces chemins de roulement (7, 8) et fixé axialement par les joues de pendule (4). Pour augmenter l'efficacité du pendule centrifuge (1), les joues de pendule (4) présentent une surface de contact (13) à coefficient de friction réduit par rapport aux surfaces frontales (10) du rouleau (9).
PCT/DE2017/100111 2016-03-11 2017-02-14 Pendule centrifuge WO2017152899A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112017001258.9T DE112017001258A5 (de) 2016-03-11 2017-02-14 Fliehkraftpendel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016204023.5 2016-03-11
DE102016204023 2016-03-11

Publications (1)

Publication Number Publication Date
WO2017152899A1 true WO2017152899A1 (fr) 2017-09-14

Family

ID=58360772

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2017/100111 WO2017152899A1 (fr) 2016-03-11 2017-02-14 Pendule centrifuge

Country Status (2)

Country Link
DE (2) DE102017102863A1 (fr)
WO (1) WO2017152899A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3067080A1 (fr) * 2017-06-06 2018-12-07 Valeo Embrayages Dispositif d'amortissement pendulaire

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3113102B1 (fr) * 2020-07-31 2022-08-19 Valeo Embrayages Dispositif d’amortissement pendulaire

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011076169A2 (fr) * 2009-12-21 2011-06-30 Schaeffler Technologies Gmbh & Co. Kg Dispositif de pendule centrifuge
EP2600030A2 (fr) 2011-12-01 2013-06-05 Schaeffler Technologies AG & Co. KG Convertisseur de couple
WO2013156733A1 (fr) * 2012-04-20 2013-10-24 Valeo Embrayages Dispositif d'amortissement pendulaire, en particulier pour une transmission de véhicule automobile
WO2014023303A1 (fr) 2012-08-06 2014-02-13 Schaeffler Technologies AG & Co. KG Pendule à force centrifuge et embrayage à friction à pendule à force centrifuge
WO2014082629A1 (fr) 2012-11-30 2014-06-05 Schaeffler Technologies AG & Co. KG Dispositif de transmission de couple et chaîne cinématique pourvue d'un dispositif de transmission de couple
WO2014114280A1 (fr) 2012-12-20 2014-07-31 Schaeffler Technologies AG & Co. KG Pendule centrifuge
DE102013201981A1 (de) 2013-02-07 2014-08-07 Audi Ag Drehschwingungsdämpfer
DE102014110233A1 (de) 2013-07-19 2015-01-22 Valeo Embrayages Dämpfungssystem vom Typ Pendel-Oszillator
FR3010472A1 (fr) * 2013-09-10 2015-03-13 Valeo Embrayages Dispositif d'absorption de vibrations
DE102014117000A1 (de) * 2013-12-16 2015-06-18 Valeo Embrayages Pendeldämpfungsvorrichtung
DE102015205078A1 (de) * 2014-04-09 2015-10-15 Schaeffler Technologies AG & Co. KG Fliehkraftpendelvorrichtung

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011076169A2 (fr) * 2009-12-21 2011-06-30 Schaeffler Technologies Gmbh & Co. Kg Dispositif de pendule centrifuge
EP2600030A2 (fr) 2011-12-01 2013-06-05 Schaeffler Technologies AG & Co. KG Convertisseur de couple
WO2013156733A1 (fr) * 2012-04-20 2013-10-24 Valeo Embrayages Dispositif d'amortissement pendulaire, en particulier pour une transmission de véhicule automobile
WO2014023303A1 (fr) 2012-08-06 2014-02-13 Schaeffler Technologies AG & Co. KG Pendule à force centrifuge et embrayage à friction à pendule à force centrifuge
WO2014082629A1 (fr) 2012-11-30 2014-06-05 Schaeffler Technologies AG & Co. KG Dispositif de transmission de couple et chaîne cinématique pourvue d'un dispositif de transmission de couple
WO2014114280A1 (fr) 2012-12-20 2014-07-31 Schaeffler Technologies AG & Co. KG Pendule centrifuge
DE102013201981A1 (de) 2013-02-07 2014-08-07 Audi Ag Drehschwingungsdämpfer
DE102014110233A1 (de) 2013-07-19 2015-01-22 Valeo Embrayages Dämpfungssystem vom Typ Pendel-Oszillator
FR3010472A1 (fr) * 2013-09-10 2015-03-13 Valeo Embrayages Dispositif d'absorption de vibrations
DE102014117000A1 (de) * 2013-12-16 2015-06-18 Valeo Embrayages Pendeldämpfungsvorrichtung
DE102015205078A1 (de) * 2014-04-09 2015-10-15 Schaeffler Technologies AG & Co. KG Fliehkraftpendelvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3067080A1 (fr) * 2017-06-06 2018-12-07 Valeo Embrayages Dispositif d'amortissement pendulaire

Also Published As

Publication number Publication date
DE102017102863A1 (de) 2017-09-14
DE112017001258A5 (de) 2018-11-29

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