WO2013030141A1 - Poulie découplée - Google Patents

Poulie découplée Download PDF

Info

Publication number
WO2013030141A1
WO2013030141A1 PCT/EP2012/066571 EP2012066571W WO2013030141A1 WO 2013030141 A1 WO2013030141 A1 WO 2013030141A1 EP 2012066571 W EP2012066571 W EP 2012066571W WO 2013030141 A1 WO2013030141 A1 WO 2013030141A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
secondary mass
mass
pulley according
decoupled
Prior art date
Application number
PCT/EP2012/066571
Other languages
German (de)
English (en)
Inventor
Martin Maus
Axel Neukirchen
Original Assignee
Winkelmann Powertrain Components Gmbh & 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 Winkelmann Powertrain Components Gmbh & Co. Kg filed Critical Winkelmann Powertrain Components Gmbh & Co. Kg
Publication of WO2013030141A1 publication Critical patent/WO2013030141A1/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
    • F16F15/12—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
    • F16F15/121—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 using springs as elastic members, e.g. metallic springs
    • F16F15/124—Elastomeric springs
    • F16F15/126—Elastomeric springs consisting of at least one annular element surrounding the axis of rotation
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F16H55/48—Pulleys manufactured exclusively or in part of non-metallic material, e.g. plastics
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F16H2055/366—Pulleys with means providing resilience or vibration damping

Definitions

  • the invention relates to a decoupled pulley with a hub-shaped primary mass which is rotatably connected to a shaft extending along a rotation axis, a secondary mass, which is rotatable relative to the primary mass and which is connected via a flexible coupling with the primary mass and on the outside of a belt profile Having torque transmission between the secondary mass and a belt and at least one bearing that allows relative movement of the secondary mass and the primary mass in the circumferential direction.
  • Such decoupled pulleys are used in particular in drive assemblies of motor vehicles.
  • the shaft is the crankshaft of the drive unit.
  • external units and devices such as generators, pumps and the like can be driven via the belt pulley.
  • V-ribbed belts, but also toothed belts can be used as belt, depending on the selection of the belt, the belt profile of the pulley is designed accordingly (keyway profile, sprocket profile).
  • Such pulleys are in many cases attenuated in terms of the transmission of mechanical vibrations between the outer periphery of the secondary mass to which the belt engages, on the one hand, and the shaft, on the other hand; decoupling vibration.
  • the torque transmission takes place in such cases, therefore, essentially via an elastic coupling of the pulley, which usually engages radially inward on the primary mass and radially on the outside of the secondary mass.
  • the secondary mass is provided on the radially inner side facing away from the belt profile with at least one bearing, in particular a sliding bearing, which enables and guides a relative movement of the secondary mass and the primary mass in the circumferential direction (that is to say in the direction of rotation about the axis of rotation of the shaft).
  • a bearing is suitably rotatably inserted into the secondary mass.
  • a decoupled pulley with the features of the preamble of claim 1 is known from DE 10 2009 011 697 B4.
  • the secondary mass is made of metal and has axially adjacent to each other preferably two belt profiles, radially inside it is mounted on the primary mass via two plain bearings made of plastic.
  • Such a decoupled pulley is relatively expensive to manufacture and has a not inconsiderable weight, which precludes the constant effort in the automotive industry to reduce weight.
  • the object of the invention is to further develop a generic decoupled pulley so that it has a lower weight and is cheaper to produce.
  • the decoupled pulley can thus be produced in a simple manner and has a compared to pulleys with secondary mass of metal a significantly lower weight. Since the secondary mass and the bearing are integrally formed, no additional assembly operations are necessary, ie. the bearing does not have to be inserted into the secondary mass, but the one-piece component consisting of secondary mass and bearing is produced directly in one piece in a one-stage or multistage production process.
  • the bearing is made of plastic, but alternatively it can also be designed as a metallic bushing, which is encapsulated by the secondary mass.
  • Basically it is z. B. from DE 10 2005 010 444 AI known to produce a component of two different materials in an injection molding.
  • the secondary mass and the bearing consist of two different plastic materials.
  • a two-component injection molding method is preferably used for the production.
  • the secondary mass laterally adjacent to the bearing each have a projection forming a lateral bearing surface for the bearing.
  • the secondary mass and the bearing are preferably produced in a two-component injection molding process or in two successive one-component injection molding processes, the secondary mass itself then serving as a shaped body for the bearing due to the additional lateral contact surfaces.
  • the secondary mass and the bearing consist of a single, sliding properties plastic material.
  • Such a component can be produced in a simple manner in a single injection molding process.
  • the sliding bearing can be designed as a thrust bearing. It can also be designed as a radial and thrust bearing.
  • the plain bearing can be formed in one or two parts, and it is of course an integral part of the secondary mass also in the two-part training, d .h. the secondary mass with the two plain bearing parts are integrally formed.
  • the elastic coupling between the primary and secondary mass can be designed differently depending on the application, it may be formed for example by a radial or axial elastomeric spring or a steel spring.
  • the invention also provides a method, which is characterized in that the sliding bearing and the secondary mass are produced in a two-component injection molding.
  • the sliding bearing and the secondary mass are produced in a one-component injection molding process in two successive steps, ie. First, the secondary mass and subsequently the sliding bearing with the secondary mass is produced as a molded body by injection molding.
  • FIG. 1 shows an axial section through a decoupled pulley according to the invention.
  • a decoupled pulley is generally designated 1.
  • This decoupled pulley 1 is shown only half, since it is formed symmetrically to a rotation axis 2.
  • a shaft along this axis of rotation 2 extends a shaft, not shown, with which a hub-shaped primary mass 3 of the decoupled pulley 1 is suitably connected rotatably in a manner not shown.
  • this hub-shaped primary mass 3 has an axial region 4 and a radially outwardly directed region 5 with end-side axial projection 5a.
  • the entire hub-shaped primary mass 3 may be formed in one piece, but it may also, as shown, consist of two firmly interconnected items, preferably the hub-shaped primary mass 3 is produced by sheet metal forming.
  • the decoupled pulley 1 also has a secondary mass 6, which on its radial outside a belt profile 7 for torque transmission between the secondary mass 6 and a belt, not shown, z.
  • the secondary mass 6, in the embodiment in adaptation to the shape of the primary mass 3 has an approximately C-shaped cross-sectional shape, with an adjacent to the belt profile 7 radial portion 8 and an inner axial region. 9
  • the secondary mass 6 is connected to the primary mass 3 via a flexible coupling 10, this elastic coupling 10 is z. B. formed by a radial or axial elastomer spring and disposed between the axial region 4 of the primary mass 3 and the axial portion 9 of the secondary mass 6, z. B. vulcanized to these two areas.
  • the elastic coupling 10 may also have webs 11 with which it rests distributed circumferentially on the radial region 8 of the secondary mass 6.
  • the decoupled pulley 1 a sliding bearing 12 made of sliding plastic having, which is formed in the embodiment as a one-piece radial and thrust bearing, d .h. it has an axial and a radial region.
  • This sliding bearing 12 allows a relative movement of the secondary mass 6 and the primary mass 4 in the circumferential direction and is arranged in the embodiment between the axial region 5a of the primary mass 3 and the inside of the belt profile 7 of the secondary mass 6.
  • the entire secondary mass 6 is made of plastic, and that the sliding bearing 12 is made in one piece with the secondary mass 6.
  • the secondary mass 6 and the sliding bearing 12 consist of two different plastic materials, wherein the secondary mass 6 laterally adjacent to the sliding bearing 12 each have a lateral bearing surface for the sliding bearing 12 forming projection 13 and 14 respectively.
  • the slide bearing 12 is an integral part of the secondary mass 6. If it is made of a different plastic material than the secondary mass 6, the secondary mass 6 can be produced with the slide bearing 12 either in a 2-component plastic injection molding process or in two successive the following 1-component injection molding, in which case first the secondary mass 6 is produced by injection molding and then the sliding bearing 12, wherein the corresponding portion of the already produced secondary mass 6 then together with the projections 13, 14 serves as a molded body for the injection molding.
  • the secondary mass 6 and the slide bearing 12 consist of a single sliding properties having plastic material, ie. the sliding bearing 12 is then not only an integral part of the secondary mass 6, but the secondary mass 6 itself forms the plain bearing.
  • the decoupled pulley 1 is arranged for example on a crankshaft of a motor vehicle.
  • the secondary mass 6 can rotate due to the sliding bearing 12 in the circumferential direction relative to the primary mass 3 to some extent.
  • the invention is not limited to the illustrated embodiment. Further embodiments are possible without departing from the basic idea.
  • the primary mass 3 and the secondary mass 6 may of course also have other known forms, which allow an arrangement of a torsionally flexible coupling 10 and a sliding bearing 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

L'invention concerne une poulie découplée équipée une masse primaire (3) en forme de moyeu qui peut être reliée solidaire en rotation à un arbre s'étendant le long d'un axe de rotation (2), d'une masse secondaire (6) qui peut tourner par rapport à la masse primaire (3) et qui est reliée par un accouplement élastique (10) à la masse primaire (3) et présente sur le côté extérieur un profil de poulie (7) pour transmettre le couple entre la masse secondaire (6) et une courroie, et d'au moins un palier (12) qui permet un mouvement relatif de la masse secondaire (6) et de la masse primaire (3) dans la direction périphérique. Le but de l'invention est de perfectionner cette poulie de manière qu'elle présente un poids moindre et puisse être fabriquée de manière économique. Ce but est atteint du fait qu'au moins la masse secondaire (6) est constituée de manière plastique et que le palier (12) est fabriqué d'un seul tenant avec la masse secondaire.
PCT/EP2012/066571 2011-08-27 2012-08-27 Poulie découplée WO2013030141A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011111819.9 2011-08-27
DE201110111819 DE102011111819B4 (de) 2011-08-27 2011-08-27 "Entkoppelte Riemenscheibe"

Publications (1)

Publication Number Publication Date
WO2013030141A1 true WO2013030141A1 (fr) 2013-03-07

Family

ID=46851404

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/066571 WO2013030141A1 (fr) 2011-08-27 2012-08-27 Poulie découplée

Country Status (2)

Country Link
DE (1) DE102011111819B4 (fr)
WO (1) WO2013030141A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018112162B4 (de) * 2018-05-22 2021-03-25 Schaeffler Technologies AG & Co. KG Riemenscheibenentkoppler mit angespritzter Riemenspur, Gleitlager und Axialreibring

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19938461A1 (de) * 1999-08-13 2001-03-22 Freudenberg Carl Fa Drehelastische Kupplung und Verfahren zu ihrer Herstellung
DE10154397A1 (de) * 2001-11-06 2003-05-28 Bayerische Motoren Werke Ag Antriebseinheit für Nebenaggregate einer Brennkraftmaschine
EP1382886A1 (fr) * 2002-07-16 2004-01-21 DAYCO EUROPE S.r.l. Poulie avec un amortisseur d'oscillation de torsion integré
DE10225987A1 (de) * 2002-06-11 2004-01-22 Carl Freudenberg Kg Schwingungsentkoppelte Riemenscheibe
DE19860150B4 (de) 1998-12-24 2004-06-24 Winkelmann Palsis Motortechnik Gmbh & Co.Kg Vorrichtung zur Übertragung eines Drehmoments von einem Verbrennungsmotor zu einem Kompressor
DE10350958A1 (de) * 2003-10-30 2005-05-25 Depp, Jürgen Christian, Dr. Drehschwingungsdämpfer
DE102005010444A1 (de) 2005-03-08 2006-09-14 Winkelmann Powertrain Components Gmbh & Co. Kg Bauteil aus Kunststoff mit einem Metalleinsatz sowie Verfahren zur Herstellung eines solchen Bauteiles
DE102008049747A1 (de) 2008-09-30 2010-04-01 Saint-Gobain Performance Plastics Pampus Gmbh Schwingungsdämpfendes Gleitlager-Verbundmaterial und Gleitlagerbuchse und Gleitlageranordnung
DE102009011697B4 (de) 2009-03-09 2011-01-13 Metaldyne International Deutschland Gmbh Riemenscheibe mit Kupplung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001355678A (ja) * 2000-06-12 2001-12-26 Nok Vibracoustic Kk トルク変動吸収ダンパ
JP2003207032A (ja) * 2002-01-15 2003-07-25 Denso Corp 回転体

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19860150B4 (de) 1998-12-24 2004-06-24 Winkelmann Palsis Motortechnik Gmbh & Co.Kg Vorrichtung zur Übertragung eines Drehmoments von einem Verbrennungsmotor zu einem Kompressor
DE19938461A1 (de) * 1999-08-13 2001-03-22 Freudenberg Carl Fa Drehelastische Kupplung und Verfahren zu ihrer Herstellung
DE10154397A1 (de) * 2001-11-06 2003-05-28 Bayerische Motoren Werke Ag Antriebseinheit für Nebenaggregate einer Brennkraftmaschine
DE10225987A1 (de) * 2002-06-11 2004-01-22 Carl Freudenberg Kg Schwingungsentkoppelte Riemenscheibe
EP1382886A1 (fr) * 2002-07-16 2004-01-21 DAYCO EUROPE S.r.l. Poulie avec un amortisseur d'oscillation de torsion integré
DE10350958A1 (de) * 2003-10-30 2005-05-25 Depp, Jürgen Christian, Dr. Drehschwingungsdämpfer
DE102005010444A1 (de) 2005-03-08 2006-09-14 Winkelmann Powertrain Components Gmbh & Co. Kg Bauteil aus Kunststoff mit einem Metalleinsatz sowie Verfahren zur Herstellung eines solchen Bauteiles
DE102008049747A1 (de) 2008-09-30 2010-04-01 Saint-Gobain Performance Plastics Pampus Gmbh Schwingungsdämpfendes Gleitlager-Verbundmaterial und Gleitlagerbuchse und Gleitlageranordnung
DE102009011697B4 (de) 2009-03-09 2011-01-13 Metaldyne International Deutschland Gmbh Riemenscheibe mit Kupplung

Also Published As

Publication number Publication date
DE102011111819A1 (de) 2013-02-28
DE102011111819B4 (de) 2015-03-05

Similar Documents

Publication Publication Date Title
EP2550193B1 (fr) Direction assistée
EP2000699B1 (fr) Amortisseur d'oscillations de torsions ou découpleur doté de fils de fer enroulés dans un disque d'entraînement
AT520920B1 (de) Lenksystem
DE102008019041A1 (de) Verbundkörper
EP1917157B1 (fr) Etage de transmission
DE102009052526A1 (de) Dämpfereinheit für eine Welle
WO2017001480A1 (fr) Chaîne de marches pour escaliers mécaniques et dispositif de transport de personnes équipé d'une telle chaîne de marches
DE102011119514B4 (de) Zahnrad mit fest verbundener Antriebswelle
DE102008014402A1 (de) Elektromechanische Lenkung
EP1840410A2 (fr) Roue dentée
WO2009080389A1 (fr) Ensemble transmission et ensemble transmission-entraînement
DE102011109878A1 (de) Zahnstangenlenkgetriebe
DE102011111819B4 (de) "Entkoppelte Riemenscheibe"
EP2199643A1 (fr) Amortisseur de vibrations de torsion et broche
DE102013017482B4 (de) Zahnrad
DE102015016718A1 (de) Antriebsaggregat für ein Kraftfahrzeug, insbesondere einen Kraftwagen
DE102017101396B4 (de) Zahnrad für ein Zahnradgetriebe
DE102017202418B4 (de) Getriebeeinheit
EP3346163B1 (fr) Roue dentée ainsi que systeme formant roue dentée d'un moteur a combustion interne
DE102018112212A1 (de) Riemenscheibenentkoppler mit Kunststoffgleitschale und Bausatz aus einem solchen und einer Kurbelwelle
DE202017102048U1 (de) Getriebeeinheit
DE102017202419A1 (de) Getriebeeinheit
WO2010049163A4 (fr) Transmission à billes et son procédé de fabrication
DE102006017548B3 (de) Drehschwingungsdämpfer mit Verzahnungskontur
DE102016108645B4 (de) Riemenscheibe

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12759032

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 12759032

Country of ref document: EP

Kind code of ref document: A1