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WO2007068227A1 - Paire de poulies coniques destinee a une transmission a variation continue a poulies coniques - Google Patents

Paire de poulies coniques destinee a une transmission a variation continue a poulies coniques Download PDF

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Publication number
WO2007068227A1
WO2007068227A1 PCT/DE2006/002026 DE2006002026W WO2007068227A1 WO 2007068227 A1 WO2007068227 A1 WO 2007068227A1 DE 2006002026 W DE2006002026 W DE 2006002026W WO 2007068227 A1 WO2007068227 A1 WO 2007068227A1
Authority
WO
WIPO (PCT)
Prior art keywords
arms
support ring
shaft
cone pulley
sensing piston
Prior art date
Application number
PCT/DE2006/002026
Other languages
German (de)
English (en)
Inventor
Hartmut Faust
Original Assignee
Luk Lamellen Und Kupplungsbau Beteiligungs 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 Luk Lamellen Und Kupplungsbau Beteiligungs Kg filed Critical Luk Lamellen Und Kupplungsbau Beteiligungs Kg
Priority to DE112006002811.1T priority Critical patent/DE112006002811B4/de
Priority to EP06828531A priority patent/EP1963716A1/fr
Priority to JP2008544747A priority patent/JP4982683B2/ja
Publication of WO2007068227A1 publication Critical patent/WO2007068227A1/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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/52—Pulleys or friction discs of adjustable construction
    • F16H55/56—Pulleys or friction discs of adjustable construction of which the bearing parts are relatively axially adjustable
    • 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
    • F16H59/00—Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
    • F16H59/14—Inputs being a function of torque or torque demand
    • F16H59/16—Dynamometric measurement of torque

Definitions

  • the invention relates to a cone pulley pair for a conical-pulley belt transmission.
  • Cone pulley as used for example in motor vehicles, generally contain two conical disk pairs, which are wrapped by a belt, for example a special chain. By opposing change in the distance between the conical disks of each conical disk pair, the transmission ratio can be changed continuously.
  • a pair of conical disks preferably the drive side, includes an integrated torque sensor with which the torque acting on a drive motor is detected and a contact pressure between the conical disks of the associated disk pair is changed in accordance with the torque.
  • the torque sensor is arranged directly in the space between a support plate of the cone pulley pair supporting, rigidly connected to the shaft of the cone pulley pair support ring wall and the washer.
  • a sensing piston belonging to the torque sensor has axial arms which project through the support ring wall and are in meshing engagement outside the support ring wall with an input gear driven, for example, by a drive motor.
  • the invention has for its object to solve the above problems, i. to provide a way to form the cone pulley pair such that the arms of the sensing piston with high durability are produced in a cost effective manner.
  • a pair of conical disks for a conical-pulley belt drive comprises an input shaft which is rigidly connected to a fixed disk, a travel disk axially displaceable on the shaft and non-rotatably mounted, a torque-sensing device with a sensing piston rigidly encompassing a shaft and axially displaceable and rotatable relative to the shaft is connected, which form surfaces are formed such that the axial position of the sensing piston changes by rolling arranged between the mold surfaces rolling elements on the forming surfaces in a change of effective between the sensing piston and the travel disc torque, which sensing piston on its side facing away from the shim side axially spaced arms, spaced apart in the circumferential direction, which are provided with axial toothings, which are provided with an axial peripheral toothing of a rotatably mounted on the shaft and essentially axially non-displaceable, dr ehantreibbaren input gear is engaged, and a support ring which is on the teeth of the arms radi
  • peripheral teeth of the axial extension of the sensing piston may be formed, for example, on the radial outer side, when the input gear is formed with an internal toothing.
  • the support ring is located advantageously on the free end portions of the arms.
  • the support ring is preferably symmetrical with respect to a rotation through 180 ° about an axis containing a diameter of the support ring. Further, it is advantageous for the assembly, when the support ring is formed at its end faces with a Vorzentri mecanicstress which can be pushed onto the free ends of the arms of the sensing piston with play.
  • Figure 1 shows a longitudinal section through a conical disk pair
  • Figure 2 is a view similar to Figure 1 with axially displaced sensing piston
  • Figure 3 is a detail sectional view of the support ring at the beginning of pushing on the
  • FIG. 4 shows a detail sectional view similar to FIG. 3 with the sleeves pushed onto the arms
  • a pair of conical disks of a conical-pulley belt transmission has an input shaft 10, which is formed integrally with a fixed disk 12.
  • a spacer plate 14 is arranged on the shaft 10 axiai is displaceable, but non-rotatably connected to the shaft.
  • An unillustrated looping means runs between the conical surfaces of the discs 12 and 14 and the conical surfaces of a further, not shown cone pulley pair.
  • a cylindrical ring 16 is rigidly fixed in the radially outer region with two radially spaced walls in which a piston 18 operates, so that according to Figure 1 the right side of the piston 18, a first pressure chamber 20 is formed by the in the spacer 14 formed radial bores 22, an annular space 24 between the washer 14 and the shaft 10 and formed in the shaft 10 radial bore 26 and axial bore 28 can be acted upon by hydraulic pressure, which is variable for a translation adjustment.
  • the overall annular piston 18 is rigidly connected to a generally cup-shaped support ring wall 30, which in turn is rigidly connected to the shaft 10.
  • a ring-shaped component 34 which is formed with molding surfaces 32, is rigidly fastened to the support ring wall 30.
  • a generally annular sensing piston 36 is axially slidable sealing against the peripheral surface of the shaft 10 and an inner peripheral surface of the annular member 34.
  • the sensing piston 36 is formed with a projection directed toward the travel plate 14, on the rear side of which molding surfaces 38 are formed, which form counter surfaces to the shaping surfaces 32.
  • Between the forming surfaces 32 and 38 are rolling elements, in the example shown balls 40, respectively.
  • a second pressure chamber 42 is formed, which is acted upon via a leading through the shaft 44 supply line with hydraulic pressure, wherein the hydraulic fluid via a likewise formed in the shaft 10 discharge line 46 is derivable.
  • the effective cross section of the leading into the second pressure chamber inlet opening 48 is determined by the axial position of the spacer plate 14.
  • the free cross section of the outgoing from the second pressure chamber discharge opening 50 is determined by the position of the sensing piston 36.
  • the sensing piston 36 projects with circumferentially preferably equally spaced axial arms 52 through recesses of the support ring wall 30 therethrough.
  • the radially outer surfaces of the arms 52 are provided with axially and radially directed teeth, which are in engagement with an internal toothing of an input gear 54, which is mounted on an outer shell 56 of a bearing generally designated 58 axially substantially immovable.
  • a support ring 60 is provided for supporting the free ends of the arms 52 of the sensing piston, which abuts against the radial inner sides of the end portions of the arms 52 and urges them outwardly so that the outer teeth of the arms are forced into secure engagement with the internal teeth of the input gear 54 become.
  • the arms 52 are, as shown, advantageously formed on a welded to the sensing piston ring part, from which they protrude axially. In this way, the welding of the arms and the ring member is relieved of directly acting on the arms in the circumferential direction bending forces.
  • Figures 3 and 4 show a section of the circled in Figures 1 and 2 area with the support ring 60 and the free end portions 62 of the arms 52, wherein in each case only one arm of advantageously at least three arms is shown.
  • each finger 52 is provided with a recess 66 which ends in a nose surface 68 at the end.
  • the support ring 60 has a radially outwardly facing outer surface 70, which is the recess 66 correspondingly, but formed with oversize, and merges via a Vorzentri fürstress 72 in the end face of the support ring.
  • the cross section of the support ring 60 is advantageously designed such that the support ring merges with a rotation of 180 ° about a diameter in itself, that can be inserted from both sides into the circumferentially spaced fingers 52.
  • the radial diameter of the Vorzentri mecanicsease 72 of the support ring 60 is slightly smaller, for example, by about 0.05 mm smaller than the smallest diameter of the nose surface 68, so that the support ring 60 centered when pushed onto the front ends of the arms 52 itself.
  • the excess of the largest diameter of the Sense surface 70 of the support ring 60 with respect to the largest inner diameter of the recess 66 is for example of the order of 0.15 mm.
  • the support ring 60 is in the inserted state in the fingers 52, preferably axially slightly outside the outer teeth 64, in the region of the fingers 52 are formed radially larger in thickness than in their end portions 62nd
  • the outer surface 70 and the inner surface of the recess 66 can be knurled in the axial direction.
  • the support ring does not require additional space since it is located within the thinned end portions of the arms within an annulus formed between the bearing 58, the arms 52, and a seal carrier.
  • the snap connection can be formed in a variety of ways, for example, a narrow snap-on nose can be formed on the support ring, wherein a radial support is given left and right of the nose.
  • a wide snap-on nose can be formed on the ring, wherein the radial support takes place directly on the nose, as shown in Figures 3 and 4, and the snap takes place on both sides of the nose. To avoid chip formation, all edges will advantageously be rounded.
  • the arms rigidly connected to the sensing piston are advantageously case hardened or carbonitrided.
  • the support ring is advantageously made of steel, a tempering steel, for example ETG100 with Rm «1000 MPa without further heat treatment, case hardened steel, hardened or carbonitrided.
  • the arms 52 are externally toothed, so that the support ring 60 is disposed within the arms.
  • the arms can be internally toothed and interact with an external toothing of the input wheel.
  • the support ring is then disposed radially outward of the arms and urges them in meshing engagement with the input gear.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Pulleys (AREA)

Abstract

L'invention concerne une paire de poulies coniques comprenant un arbre d'entrée qui est relié de façon rigide à une poulie fixe, une poulie mobile montée sur l'arbre de façon coulissante axialement et solidaire en rotation, un capteur de couple présentant une surface profilée reliée de façon rigide à l'arbre et une autre surface profilée reliée de façon rigide à un piston de détection qui entoure l'arbre et peut tourner et être déplacé axialement par rapport à l'arbre. Lesdites surfaces profilées sont conçues de telle sorte que la position axiale du piston de détection soit modifiée par roulement d'éléments roulants disposés entre les surfaces profilées en cas de modification du couple agissant entre le piston de détection et la poulie mobile. Ledit piston de détection présente sur son côté opposé à la poulie mobile des bras orientés axialement et espacés dans le sens périphérique, ces bras étant pourvus de dentures axiales qui s'engrènent dans une denture périphérique axiale d'une roue d'entrée pouvant être entraînée en rotation et montée de façon rotative sur l'arbre et de façon sensiblement immobile axialement. Cette paire de poulies coniques comprend par ailleurs une bague d'appui qui est en contact avec les bras sur le côté opposé radialement aux dentures des bras et qui presse les dentures des bras de sorte qu'elles s'engrènent dans la denture périphérique de la roue d'entrée.
PCT/DE2006/002026 2005-12-14 2006-11-20 Paire de poulies coniques destinee a une transmission a variation continue a poulies coniques WO2007068227A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112006002811.1T DE112006002811B4 (de) 2005-12-14 2006-11-20 Kegelscheibenpaar für ein Kegelscheibenumschlingungsgetriebe
EP06828531A EP1963716A1 (fr) 2005-12-14 2006-11-20 Paire de poulies coniques destinee a une transmission a variation continue a poulies coniques
JP2008544747A JP4982683B2 (ja) 2005-12-14 2006-11-20 円錐ベルト車巻き掛け伝動装置のための円錐ベルト車対

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005059622.3 2005-12-14
DE102005059622 2005-12-14

Publications (1)

Publication Number Publication Date
WO2007068227A1 true WO2007068227A1 (fr) 2007-06-21

Family

ID=37806130

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2006/002026 WO2007068227A1 (fr) 2005-12-14 2006-11-20 Paire de poulies coniques destinee a une transmission a variation continue a poulies coniques

Country Status (4)

Country Link
EP (1) EP1963716A1 (fr)
JP (1) JP4982683B2 (fr)
DE (1) DE112006002811B4 (fr)
WO (1) WO2007068227A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108474458A (zh) * 2015-12-10 2018-08-31 比亚乔公司 具有档位调节装置的无级变速器装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015223014B4 (de) 2015-11-23 2017-08-10 Schaeffler Technologies AG & Co. KG Anordnung zur axialen Verspannung eines CVT-Festlagers von außerhalb eines Getriebegehäuses

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19939435A1 (de) * 1998-08-28 2000-03-02 Luk Getriebe Systeme Gmbh Getriebe
US6585613B1 (en) * 1997-12-22 2003-07-01 Luk Getriebe-Systeme Gmbh Infinitely variable transmission with a locking device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19921750B4 (de) * 1998-05-18 2012-03-08 Schaeffler Technologies Gmbh & Co. Kg Getriebe
DE19951950B4 (de) * 1998-11-03 2013-02-28 Schaeffler Technologies AG & Co. KG Getriebe
JP4848559B2 (ja) * 2000-12-20 2011-12-28 シェフラー テクノロジーズ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト 組み込まれたトルク感応器を備えた無段変速可能な円錐形プーリ巻掛け伝動装置
JP4806827B2 (ja) * 2003-04-07 2011-11-02 シェフラー テクノロジーズ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト 円錐形ディスク式巻掛け伝動装置および突起付きリング

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6585613B1 (en) * 1997-12-22 2003-07-01 Luk Getriebe-Systeme Gmbh Infinitely variable transmission with a locking device
DE19939435A1 (de) * 1998-08-28 2000-03-02 Luk Getriebe Systeme Gmbh Getriebe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108474458A (zh) * 2015-12-10 2018-08-31 比亚乔公司 具有档位调节装置的无级变速器装置
CN108474458B (zh) * 2015-12-10 2021-02-19 比亚乔公司 具有档位调节装置的无级变速器装置

Also Published As

Publication number Publication date
DE112006002811A5 (de) 2008-09-04
DE112006002811B4 (de) 2016-09-15
JP2009519408A (ja) 2009-05-14
JP4982683B2 (ja) 2012-07-25
EP1963716A1 (fr) 2008-09-03

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