EP1893890A2 - Chaine articulee - Google Patents

Chaine articulee

Info

Publication number
EP1893890A2
EP1893890A2 EP06742353A EP06742353A EP1893890A2 EP 1893890 A2 EP1893890 A2 EP 1893890A2 EP 06742353 A EP06742353 A EP 06742353A EP 06742353 A EP06742353 A EP 06742353A EP 1893890 A2 EP1893890 A2 EP 1893890A2
Authority
EP
European Patent Office
Prior art keywords
guide
profile
chain
rocker
undercut
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Withdrawn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
EP06742353A
Other languages
German (de)
English (en)
Inventor
Marcus Junig
Anton Simonov
Martin Vornehm
Olga Ispolatova
Michael Pichura
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 Buehl Verwaltungs GmbH
LuK Lamellen und Kupplungsbau GmbH
Original Assignee
LuK Lamellen und Kupplungsbau Beteiligungs KG
LuK Lamellen und Kupplungsbau GmbH
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, LuK Lamellen und Kupplungsbau GmbH filed Critical LuK Lamellen und Kupplungsbau Beteiligungs KG
Publication of EP1893890A2 publication Critical patent/EP1893890A2/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Withdrawn legal-status Critical Current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
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G5/00—V-belts, i.e. belts of tapered cross-section
    • F16G5/16—V-belts, i.e. belts of tapered cross-section consisting of several parts
    • F16G5/18—V-belts, i.e. belts of tapered cross-section consisting of several parts in the form of links
    • 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
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/02—Driving-chains
    • F16G13/04—Toothed chains
    • 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
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/18—Chains having special overall characteristics

Definitions

  • the present invention relates to a link chain and a guide tab for a link chain.
  • Chains are known in many ways from the prior art.
  • Such toothed chains can in turn have a joint connection, which comprises two hinged pressure plates which articulate on each articulated joint.
  • toothed chains Areas of use for such toothed chains are, for example, timing chains which at least indirectly connect the crankshaft to the camshaft of an internal combustion engine and thus control the valves which serve to change the gas. How such timing chains or chain drives are performed is known in the art and will not be further elaborated here.
  • a further field of application for such toothed chains are, for example, four-wheel drive concepts in which, starting from a transfer case, part of the drive power is conducted to the rear wheels via a cardan shaft, while the remaining part is led via such a chain drive to a further shaft extending substantially parallel to the drive shaft which then leads the power to the front wheels.
  • the present invention seeks to provide a guide plate of a silent chain with improved elastic properties of the overall plate and the contact zone to the chain link.
  • a link chain in particular toothed link chain, of a plurality of tabs, which each form latches, which are connected to a hinge in each case with adjacent latches stacks, wherein in each case a rocker joint of a joint with the lugs of a lug stack is connected by a mounting opening and two rocker pieces of adjacent plate stacks form the joint, whereby the rocker pieces can roll and / or slide on each other with a rolling profile and wherein the plate stacks comprise at least one guide plate, wherein the weighing piece comprises a guide profile which has a first connecting profile and a second connecting profile with a weighing profile is connected, wherein the guide tab has at least one attachment opening, which has an undercut in the region of the first and / or second connection profile.
  • one undercut is arranged in each case in the region of the first connection profile and the second connection profile of both rocker pieces.
  • at least one of the undercuts may be arranged in the region of a rolling ridge of a rocker.
  • a guide tab for a link chain in particular toothed link chain
  • two mounting holes for attachment to a respective bolt, in particular a rocker wherein the mounting holes has large and small radii over its circumference, wherein in at least one area with a small radius of the mounting holes an undercut is arranged.
  • the undercut may preferably be at least partially parabolic. It is preferably provided that the attachment opening has two areas with small radii, in each of which an undercut is arranged.
  • a guide tab for a link chain in particular toothed link chain
  • mounting holes for attachment to a bolt in particular a rocker
  • the guide plate between the mounting holes on one side has a recess and on the other side a bulge, said the recess and the bulge are arranged so that a waisting arises between the plane of symmetry and the fastening openings.
  • this is achieved by a shape optimization of the guide tab to reduce the critical stresses. Furthermore, in some places with particularly small radii by form optimization, the risk of damage is reduced by a production-related degree of rolling.
  • the shape optimization is carried out so that the Zahnlaschenelastiztician this edge tab or guide tab is improved both in terms of pure longitudinal stiffness, as well as with respect to a bending under tensile force.
  • contour sections are used for special undercuts that can be described by a parabolic function. These undercuts are executed at the places where a rolling ridge is to be expected. The undercut detaches in a zone from the rocker, in - A - there is a slight curvature of the rocker pressure contour. As a result, although the contact area between the rocker pressure plate and the link plate is deliberately reduced, this in turn reduces the stresses and thus reduces or even avoids the risk of chain linkage failure.
  • a double waisting of the guide plate in each case between the axis of symmetry and the bores makes it possible to reduce both the longitudinal rigidity and, at the same time, to achieve a lower deflection under tensile force comparable to the toothed plates.
  • This lower deflection results from the fact that the neutral fiber is much less underneath the holes and thus differs significantly from the prior art.
  • the guiding property that is, the tooth coverage
  • the elastic properties of the guide tab are matched to those of the toothed plate, so that they in turn have substantially the same pitch in operation.
  • Fig. 1 is a side view of a link chain
  • Fig. 2 is a plan view of a link chain
  • FIG. 3 shows an embodiment of a guide tab according to the invention
  • FIG. 4 shows the weight piece and the contour of the associated receiving opening in FIG. 3;
  • FIG. 5 shows a further embodiment of a guide tab according to the invention.
  • Fig. 6 is a guide plate according to the prior art
  • Fig. 8 shows the bending of a guide tab according to the invention.
  • Fig. 1 shows a side view
  • Fig. 2 is a plan view of a prior art link chain with Zweilaschenvious.
  • the link chain 1 comprises a plurality of tabs 2 and counter-tabs 2 '.
  • the tabs 2 and opposing tabs 2 ' are each arranged alternately and connected to hinge pin 4 as a joint.
  • Both ends of a tab are thus connected by means of a joint with one or two counter-tabs, correspondingly both ends of a counter-tab are connected by means of a hinge with one or two tabs.
  • the hinge pin 4 may be in one piece, but are preferably in two parts, wherein a rocker 5 is associated with the tabs and on one of the mating flap 2 associated rocking piece 5 'unrolls.
  • the rocker pieces 5, 5 'each have a rolling profile 7 or T, with which they can roll or slide on one another.
  • the rolling profiles 7, T may be identical or different.
  • tabs 2 and counter-tabs 2 ' are identical components in the present embodiment, a distinction between tabs 2 and 2 opposite tabs can be seen only by the arrangement. Therefore, only tabs 2 are discussed below, since they are identical to the counter-tabs except for the packet-wise arrangement.
  • a stack of three tabs 2 and two opposing tabs 2 ' is shown, but here also can be provided with any other number of tabs 2 and mating tabs 2' stack.
  • the tabs 2 are - as can be seen in Fig. 1 - each provided with tab teeth 9. With the tab teeth 9, the link chain 1 with a toothing, z. B. a gear, comb. The division between tabs 2 and counter-tabs 3 is designed so that a total of stretched chain uniform pitch between the tab teeth 9 results.
  • the counter-plates 3 are provided with tab teeth 9, so that all tabs and counter-tabs are each provided with tab teeth 9. However, it is also possible to provide either only tabs 2 or counter-tabs 2 'with two tab teeth 9 or to provide tabs and counter tabs with only one tab tooth 9.
  • the tab packages are closed on both sides by guide tabs 10.
  • FIG. 3 shows a guide strip 10 according to the invention with two rocker pieces 5, which are each arranged in an opening 11.
  • the openings 11 each have a first undercut 17 and a second undercut 18, as will be described below with reference to FIG. 4.
  • the weight 5 comprises a guide profile 12, with which this is supported on the tabs 2 and the guide plate 10. Furthermore, the weighing piece 5 comprises a weighing profile 13, with which the weighing piece 5 can roll on or slide off on a respective associated weighing piece 5 'of another set of lugs 8'.
  • the guide profile 12 and the cradle 13 are connected via a first connection profile 14 and a second connection profile 15.
  • the cradle 13 always merges at its two end sides into the first connection profile 14 or into the second connection profile 15, the two connection profiles 14, 15
  • the first connection profile has a radius of curvature (or a curvature, which can be designated by radii of tangential circles, radius of curvature is also synonymous with radius, shown with radii of tangential circles), which extends over the circumferential length of the first connection profile 14 is continuously reduced from a large radius of curvature R14_1 up to a minimum radius of curvature of R14_2 and then becomes larger again up to a large radius of curvature R14_3 and with this radius of curvature steadily merges into a radius of curvature R12_1 of the guide profile 12.
  • the Fecuringu ngsprofil 12 has over its circumference changing diameter, wherein a minimum radius of curvature R12_2 is significantly greater than the minimum radius of curvature R14_2 of the first connection profile 14.
  • the guide profile 12 has a recess 16 for fixing the rocker 5 on.
  • the second connection profile 15 has a small minimum radius of curvature R15_2 and has a large radius of curvature R15_1 in the region of the transition to the weighing profile 13 and also a large radius of curvature R15_3 in the region of the transition to the guide profile 12.
  • R15_2 the radius of curvature
  • R15_1 the radius of curvature
  • R15_2 the radius of curvature
  • R15_3 in the region of the transition to the guide profile 12.
  • a first undercut 17 is arranged, correspondingly a second undercut 18 is arranged in the region of the second connection profile 15.
  • the radius of curvature R14_2 is constant and extends from a starting point 19 to an end point 20. Accordingly, the radius of curvature R15_2 is constant and extends from a starting point 21 to an end point 22.
  • the gap width y of the first undercut 17 is constant. At the two ends of the first undercut 17 each parabolic Cl- transition 23 are arranged until the disappearance of the gap (gap width equal to zero).
  • the second undercut 18 has a constant gap width x in the region of the constant radius of curvature R15_2 and likewise merges at both ends in parabolic transitions 23 to a gap width of zero.
  • Fig. 4 is a rolling ridge 24, which may arise in the manufacture of the rocker 5, indicated.
  • the burr 24 is arranged so that it falls within the range of one of the undercuts 17, 18, in the present embodiment, the mill ridge 24 is in the region of the second undercut 18.
  • Fig. 5 shows another embodiment of a guide tab according to the invention.
  • Fig. 6 shows in comparison to a guide plate according to the prior art.
  • the guide plates 10 each have wings 25 which provide a guide for the toothed plate chain on which the guide plates 10 are arranged.
  • the corner widths do and you above and below the openings 11 are approximately the same size. As can be seen in Fig. 6, this is not the case in the prior art.
  • the guide tab according to the invention has waistings 26, which merge into a wing 27 towards a center line 27.
  • the width a of the guide plate 10 in the region of the waist 26 is thus smaller than the width b in the region of the maximum thickness of the wing 25, this maximum thickness b is in the embodiment of FIG. 25 in the region of the center line 27th
  • the minimum width b of the guide lug between the two jaw pieces 5 is approximately centered, thus coinciding approximately with the center line 27.
  • the region of lowest bending stiffness also falls approximately in the middle of the lug. 5, the areas of lowest bending stiffness fall approximately in the vicinity of the rocker 5.
  • the neutral fibers of the two guide plates are each shown as a dashed line d.
  • the maximum distance c of the neutral fiber d to an imaginary force application line through the weighing pieces 5 is significantly less than the maximum distance c for a guide plate according to the prior art.-
  • the smaller distance between the neutral fiber b and the line of action The tensile force F causes a lower bending of the guide plate relative to a guide plate according to the prior art as shown in Fig. 6.
  • FIG. 7 the longitudinal strain in the guide plate 10 according to the invention is shown in FIG. 6, in Fig. 8, the bending of such a guide tab is shown.
  • the thicker lines denote the undeformed guide tab 10, the thinner lines the deformed guide tab 10; in the longitudinal expansion as shown in Fig. 7, the rocker 5 are pulled apart in the direction of the double arrow 28, the guide plate 10 thus stretched as a whole, in the bend as this is shown in Fig. 8 is carried out essentially a bend to both sides (Rotation) about a pivot point 29, which lies for example in the region of the neutral fiber approximately in the center of the guide tab.
  • a guide flap according to the invention according to FIG. 6, in particular the bend as explained in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

Chaîne articulée, en particulier chaîne articulée à dents, constituée d'une pluralité de mailles qui forment des piles de mailles couplées à l'aide d'une articulation à des piles de mailles voisines. Un élément de basculement d'une articulation est relié à travers un orifice de fixation aux mailles d'une pile de mailles et deux éléments de basculement de piles de mailles adjacentes forment l'articulation. Les éléments de basculement possèdent chacun un profil arrondi et peuvent rouler et / ou glisser les uns sur les autres. La pile de mailles comporte au moins une maille de guidage. Ledit élément de basculement possède un profil de guidage relié à un profil de basculement via un premier profil de liaison et un second profil de liaison. La maille de guidage possède au moins un orifice de fixation pourvu d'une rainure de dégagement dans la zone du premier et / ou du second profil de liaison.
EP06742353A 2005-06-14 2006-05-17 Chaine articulee Withdrawn EP1893890A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005027302 2005-06-14
DE102005062313 2005-12-24
PCT/DE2006/000845 WO2006133667A2 (fr) 2005-06-14 2006-05-17 Chaine articulee

Publications (1)

Publication Number Publication Date
EP1893890A2 true EP1893890A2 (fr) 2008-03-05

Family

ID=37054523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06742353A Withdrawn EP1893890A2 (fr) 2005-06-14 2006-05-17 Chaine articulee

Country Status (6)

Country Link
EP (1) EP1893890A2 (fr)
JP (1) JP5082163B2 (fr)
KR (1) KR20080015396A (fr)
CN (1) CN101198808B (fr)
DE (1) DE112006001340A5 (fr)
WO (1) WO2006133667A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008095457A1 (fr) * 2007-02-08 2008-08-14 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Chaîne à maillons
EP2034216A3 (fr) 2007-08-31 2011-06-22 LuK Lamellen und Kupplungsbau Beteiligungs KG Chaîne à maillons
JP5944200B2 (ja) * 2012-04-04 2016-07-05 株式会社椿本チエイン サイレントチェーン
DE102012222007A1 (de) * 2012-11-30 2014-06-05 Schaeffler Technologies Gmbh & Co. Kg Laschenkette
JP5976257B1 (ja) * 2013-08-14 2016-08-23 ボーグワーナー インコーポレーテッド 改善されたｎｖｈ挙動を有する細いレーシングを可能にする互い違いの内側リンク位置を有するチェーン
CN107110298B (zh) * 2014-10-07 2019-11-19 舍弗勒技术股份两合公司 具有增加强度的优化的形状的用于倒齿链的链节
DE102019104177A1 (de) * 2019-02-19 2020-08-20 Schaeffler Technologies AG & Co. KG CVT-Laschenkette mit geschickter Anlage zwischen Druckstück und Lasche
DE102020114285B3 (de) * 2020-05-28 2021-09-16 Schaeffler Technologies AG & Co. KG Laschenkette mit zweiteiligem, lastabhängigem Kontakt zwischen einer Lasche und einem Wiegedruckstück; sowie stufenlos verstellbares Getriebe

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5445570A (en) 1994-02-15 1995-08-29 Borg-Warner Automotive, Inc. Chain guide link
US5464374A (en) * 1994-08-03 1995-11-07 Borg-Warner Automotive, Inc. Chain having improved load distribution
JP3091456B1 (ja) * 1999-08-02 2000-09-25 株式会社椿本チエイン 耐摩耗性サイレントチェーン
DE20216549U1 (de) * 2002-10-25 2003-02-13 Aumund Foerdererbau Gmbh & Co Laschenkette
JP2004353791A (ja) * 2003-05-30 2004-12-16 Daido Kogyo Co Ltd サイレントチェーン及びガイドリンクプレート

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006133667A2 *

Also Published As

Publication number Publication date
JP2008544173A (ja) 2008-12-04
KR20080015396A (ko) 2008-02-19
DE112006001340A5 (de) 2008-03-06
WO2006133667A2 (fr) 2006-12-21
JP5082163B2 (ja) 2012-11-28
CN101198808A (zh) 2008-06-11
CN101198808B (zh) 2013-06-12
WO2006133667A3 (fr) 2007-03-29

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