WO2007076777A2 - Chaine - Google Patents

Chaine Download PDF

Info

Publication number
WO2007076777A2
WO2007076777A2 PCT/DE2006/002200 DE2006002200W WO2007076777A2 WO 2007076777 A2 WO2007076777 A2 WO 2007076777A2 DE 2006002200 W DE2006002200 W DE 2006002200W WO 2007076777 A2 WO2007076777 A2 WO 2007076777A2
Authority
WO
WIPO (PCT)
Prior art keywords
chain
pin
tab
contact surface
rocker
Prior art date
Application number
PCT/DE2006/002200
Other languages
German (de)
English (en)
Other versions
WO2007076777A3 (fr
Inventor
Martin Vornehm
Andreas Triller
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 JP2008544752A priority Critical patent/JP2009520161A/ja
Priority to EP06828643A priority patent/EP1977136A2/fr
Priority to DE112006003279T priority patent/DE112006003279A5/de
Publication of WO2007076777A2 publication Critical patent/WO2007076777A2/fr
Publication of WO2007076777A3 publication Critical patent/WO2007076777A3/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
    • 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
    • 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

Definitions

  • the invention relates to a chain, in particular a chain for a continuously variable conical-pulley transmission or a toothed chain.
  • Areas of application for such chains are in addition to the conical-pulley belt transmissions generally toothed chains in transmissions, for example as a pump drive or transfer chain in four-wheel distributor gears, or engine timing chains.
  • a CVT transmission i. a continuously variable conical pulley belt transmission
  • such chains are used to transmit the torque from the driving conical pulley pair to the driven pulley pair.
  • toothed chains the chains made up of link elements and rocker joints on the link elements have toothing geometries with which they engage in a complementary tooth geometry and thus likewise transmit forces or moments.
  • Such constructed from weighing joints and straps chains usually contain two-piece weighing joints.
  • the rocker joints are formed from two pin elements which are guided in a recess in the tabs, so that in each case two pin elements penetrate the recess of a tab element and an adjoining tab element and thus connect the tab elements to form a chain. At the same time they serve to ensure the mobility of the links to each other, and to allow the transmission of power in the chain.
  • rocker joints are not built from two identical pins but from two different pins, such as a large and a small pin. But here, too, two must various components processed separately from production technology and defined alternately or randomly installed alternately.
  • the object of the invention is to provide a cost-effective chain, which has good acoustic properties and good strength and is easy to produce.
  • the invention is based on the idea to use only one pin, which has asymmetric properties and thus dependent on its mounting direction to different rolling behavior within the link plate element opening leads or its pressure transfer point, for example, to a conical disk of a conical pulley wrap, depending within a tab element changes from the mounting position of the pin in the tab element.
  • the pin can be used and used at least in two different installation positions with respect to a tab element.
  • the pin element used as a rocker is asymmetrical with respect to point symmetry and / or axis symmetry, wherein the axis of interest for axis symmetry is an axis perpendicular to the direction of extension of the chain in the stretched state, so that the central axis of a pin element or through the pin transverse axis. section perpendicular to the pin axis as the bisector of the maximum width of the rocker in the direction of extension of the chain can be defined.
  • the chain is used as a toothed chain, so that the tab elements are toothed chain elements with tooth geometry, preferably in each case with two teeth.
  • the teeth may also have slightly different tooth geometry to improve the acoustics of the chain. This serves to achieve different engagement states of the teeth with the counterpart components when installing the chain in one or the other direction.
  • the chain is used as a chain for a belt pulley transmission (CVT).
  • CVT belt pulley transmission
  • Each pin preferably has an end face with a face contact to, for example, the conical disks of a cone pulley pair of the CVT transmission, via which the power transmission takes place.
  • the end faces may each be formed as a curved surface whose maximum projection is the off-center end face contact point.
  • the tab members are configured such that each tab member has only a single opening portion that overlaps both the opening portion of the preceding tab member and the opening portion of the subsequent tab member in chain assembly.
  • two rocker joints can be provided by means of a single flap opening area.
  • each rocker is formed of only a single pin, so that each rocker joint has a pin and the associated tab contact area or rolling area.
  • each pin is designed with two rolling surfaces, so that the contact surface of the pin is formed as a second rolling surface.
  • the rolling surfaces can be point-symmetrical or point-asymmetrical. In the case of point-asymmetric rolling surfaces, a different rolling behavior of the pins on the tab elements, in particular the contact surface area and the rolling surface area of the tab element, is achieved, depending on the installation position of the pin in the opening areas of the tab elements.
  • the contact surface of the pin is designed as a non-rolling contact surface, so that the pin depending on its mounting position in the tab opening or tab hole either z. B. approximately at mid-height of the bore, meets against a Jacobicalz Structure for the rolling surface of the pin and is in rolling contact with this, or, z. B. above and below the rolling surface, abuts against a counter-contact surface when it is installed in reverse alignment in the bore.
  • the contact surface of the pin interacts and does not roll there. Rather, a relative movement between the rocker and tab member in this installation position, when the contact surface of the rocker and the contact surface area of the tab element are designed as abutment surfaces and are mutually in abutment, largely avoided.
  • each rocker is formed of only a single pin
  • the tab holes for the single pin can become smaller than is the case with the use of two pins for each rocker joint. This makes it possible to shorten the tabs and thus reduce the pitch of the chain and thus the pins.
  • Fig. 1 shows a first embodiment of a chain section according to the invention
  • Fig. 2 shows another mounting position of a chain section constructed from the same elements as in Fig. 1;
  • Fig. 3 shows an alternative embodiment of a chain section according to the invention
  • Fig. 4 shows a balance piece according to the invention
  • Fig. 4A shows an alternative embodiment of a weight piece according to the invention
  • Fig. 4B shows the cross section of the weight piece according to Fig. 4A;
  • Fig. 5 schematically illustrates a chain according to the invention
  • Fig. 7 shows a further alternative embodiment for a chain section
  • FIG. 7A u. Figure 7B show alternative embodiments of tabs;
  • FIG. 8 shows a chain arrangement according to the invention for the chain section from FIG. 7, and
  • FIG. 9B illustrates the measured tab force in a chain turn for a chain having two-part cradles or a one-piece cradle.
  • Fig. 1 shows a section of a tab member 10 with a rocker 20.
  • the rocker 20 is shown cut in Fig. 1 and is designed as a pin whose longitudinal axis is perpendicular to the plane.
  • a half is shown in Fig. 1.
  • the other half is symmetrical to the illustrated half with respect to the axis of symmetry S for a tab element 10.
  • the axis of symmetry S extends in a plane which is perpendicular to the longitudinal extension plane of the chain 30 in the extended state of the chain.
  • the tab element 10 has a through opening 11. Together with the left side adjacent tab member 10 and its opening 11 and the right side adjacent tab member 10 and its opening 11 11 two separate rocker 20 can be used in the one opening portion 11, which each form a cradle joint 32 with the tab member, and thus with the adjacent Wall regions of the opening portion 11 form two rocker joints 32 to the preceding or subsequent tab member 10.
  • the adjacent tab element 10 is designed identically and likewise has concave curved contact areas 13 as opening contour boundary and a convexly curved rolling surface area 12 lying between the concavely curved areas 13.
  • the rocker 20 is designed with respect to its cross-sectional area point asymmetrical. In particular, it has (on the left side in FIG. 1) two concavely curved contact surfaces 23 and on the opposite side a rolling surface 22.
  • the pin 20 designed as a pin is provided along its longitudinal axis with identical cross sections, except in the region of the end face 24 (FIG. 4).
  • the rocker 20 is inserted into the opening portion 11 of the tab member such that the convex contact surfaces of the rocker 20 are in contact with the contact surface portions 13 of the tab member 10 and thus not roll on it but are largely defined relative thereto.
  • the second rocker 20, which is guided by the tab element 10 shown in FIG. 1 (not shown), can either be used with mirror symmetry with respect to the axis S or aligned in the same way as the rocker 20 which is used for the left half of the tab element 10 in FIG 1 is shown. The different installation options result in a randomization.
  • FIG. 2 the situation is shown in which in an identical tab member to that of Fig. 1, also in the left half, an identical pin is used as a rocker 20, but with the orientation of the pin is rotated.
  • the right (shown) tab firmly rests on the rocker 20 and the left tab (shown with lines 15) on the pin or the rocker 20 rolls, is in the mirrored 2, the left tab member 10 rolling on the load piece 20 by the Wälzinci Scheme 12 of the opening portion 11 and the rolling surface 22 of the load piece 20 roll on each other.
  • the right tab (represented by lines 15) is fixed to the weight piece 20 and does not roll.
  • the contact surface areas 13 of the opening area 11 of the right-hand tab 10 shown in FIG. 2 are inoperative.
  • the function of the individual opening edge regions of the opening portion 11 of the tab member is exploited differently by the mirrored installation of the rocker 20 in a respective tab element with the same geometric configuration of the tab members 10 and the rocker. This can be achieved by changing the function and random installation of the rocker 20 in one direction or the other, a randomization of the functions.
  • FIG. 3 shows an embodiment of the tab members 10, in which for the cradle hinge region to the left adjacent tab member or the cradle hinge portion to the right adjacent tab member two separate opening portions 11 and tab holes are provided.
  • the configuration of the functional surfaces which form the contour of the opening region 11 as contact surface regions 13 or rolling surface region 12 between the contact surfaces 13 is identical to the embodiment shown in FIGS. 1 and 2.
  • the pin geometry of the cradle 20 is also identical.
  • FIG. 3 illustrates the situation in which a rolling contact is produced between the rolling surface 22 of the weighing piece 20 and the rolling surface region 12 of the tab element 10.
  • the contact portion 23 of the bolster 20 engages the contact surface 13 of the tab member 10 with non-rolling contact.
  • FIG. 4 shows a perspective view of the weighing piece 20 for the arrangement shown in FIGS. 1 to 3.
  • the load piece 20 has identical contour, which can be seen in cross-section in Figures 1 to 3 and has already been explained.
  • the end faces 24 of the cradle 20 are designed as spherical end faces, wherein preferably a convexity or convexity is provided in two mutually perpendicular directions, so that a furthest projecting point 26, which is the end face contact point 26, results.
  • the face contact point 26 is preferably asymmetrically mounted due to the particular configuration of the crown 25, and in particular asymmetrically with respect to a central axis of the pin element, which is perpendicular to the pin longitudinal axis L and parallel to the axes of symmetry S of the tab elements 10, i. perpendicular to the chain extension direction with straight chain 30 is located.
  • the face contact point 26 is preferably not positioned on this axis, thereby creating its asymmetry on the face 24.
  • the end face contact point 26 is the point at which the rocker joints 20 come into pressure contact with, for example, the conical disks of a bevel belt worm gear.
  • Fig. 5 shows schematically a section of a chain 30, which uses the chain elements shown in Figures 1 to 4.
  • the tab elements 10 are shown schematically in FIG. 5.
  • the cradles 20 are randomly installed in the position shown in Fig. 1 or the position shown in Fig. 2. This results in a random distribution of the distances B between adjacent two Stirn vomkon- contact points 26 and a random distribution of pitch A between adjacent rocker joints 32.
  • two consecutive pins as the two first pins from the left in Fig. 5, in are built in the same orientation, resulting in both mean pitch surface distances A and average distances B of Stirnvidmind- Points; if;
  • FIG. 6 shows the use of the geometry according to the invention for tab elements 10 and stacks 20 for toothed tab elements.
  • each tab element 10 has two schematically illustrated teeth 27, 27a, the geometry of which can likewise differ from one another as required and thus contributes to a randomization of the tooth engagement depending on the installation direction of the tab elements 10.
  • the configuration of the end faces 24 of the rocker 20 is not essential in this case. Shown is the randomization of the pitches A.
  • the cross-sectional geometry of the rocker 20 and the opening portions 1 1 of the tab members is as shown in Figures 1 to 3.
  • FIG. 7 shows an alternative embodiment for the geometry of the opening regions 11 of the tab elements 10 and the rocker pieces 20.
  • An endface contact point 26 is again provided asymmetrically on each rocker piece 20.
  • the tab elements 10 are constructed symmetrically with respect to the symmetry axis S.
  • each lug 20 has two rolling surfaces 22, ie the contact surface 23 is designed as a second rolling surface 22.
  • the rolling surfaces are provided on opposite sides with respect to a central axis through the rocker 20, which is parallel to the axis S of the tab members when the chain is straight.
  • the end surface contact point 26 is located outside the axis, ie asymmetrically on the rocker 20.
  • the rolling surfaces 22 are preferably designed differently, especially if the noise reduction of the chain 30 is to be achieved both by a randomization of the distances B of the Stimpsychromeat 26 and the rolling distances A.
  • the opening portions 11 of the tab members 10, each of which tab member 10 contains two, also have two opposite ones Rolling surface areas 12.
  • the two rolling surface regions 12 of an opening 11 of the tab element 10 can also have different geometries. This means that in the embodiment shown in FIG. 7, a contact surface region 13 of the tab element 10 is designed as a rolling surface region 12 and a contact surface 23 of the rocker 20 designed as a pin is likewise designed as a rolling surface 22.
  • randomization is enabled with a single design of both the tab members 10 and the cradles 20.
  • FIGS. 9A and 9B Advantages of using a one-piece rocker 20, with which a rocker joint 32 may be formed from a single rocker 20 and the associated tab opening 11, are shown in FIGS. 9A and 9B as compared to two-piece rocker bars, with the measured tab force in FIG Chain rotation for a two-part cradle joint 32 is shown, while Fig. 9B shows the measured tab force for one-piece cradle joint 32.
  • FIGS. 9A and 9B the sum of the forces Fo and Fu is plotted on the regions of the tab elements 10 shown in FIGS. 9A and 9B.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

L'invention concerne une chaîne comportant des mailles présentant respectivement au moins une zone d'ouverture se chevauchant avec une zone d'ouverture de la maille précédente ou consécutive dans une première ou une deuxième zone, la zone d'ouverture d'une maille présentant une zone plate laminée et une zone plate de contact. Ladite chaîne comporte également des bascules connectant les mailles, guidées par des zones d'ouverture et deux mailles adjacentes, de telle manière que les bascules entrent en interaction respectivement avec une zone plate laminée ou une zone plate de contact de chaque maille adjacente. Les bascules sont conçues en tant que tiges comportant au moins une zone périphérique de tige conçue en tant que surface laminée et une zone périphérique de tige conçue en tant que surface de contact. La surface laminée entre en interaction avec la zone plate laminée ou la zone plate de contact de la zone d'ouverture et la surface de contact entre en interaction avec la zone plate laminée ou la zone plate de contact de la zone d'ouverture. La première et la deuxième zone des mailles ou la surface laminée et la surface de contact de la zone périphérique de tige présentent une asymétrie ponctuelle ou des points de contact de surface frontale d'une tige respective sont excentrés par rapport à une surface de contre-pression, par rapport à l'axe central au travers de la section transversale de tige, parallèle à un plan perpendiculaire à la direction d'extension de la chaîne à l'état tendu.
PCT/DE2006/002200 2005-12-17 2006-12-12 Chaine WO2007076777A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2008544752A JP2009520161A (ja) 2005-12-17 2006-12-12 チェーン
EP06828643A EP1977136A2 (fr) 2005-12-17 2006-12-12 Chaine
DE112006003279T DE112006003279A5 (de) 2005-12-17 2006-12-12 Kette

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102005060597 2005-12-17
DE102005060597.4 2005-12-17
DE102006017143 2006-04-12
DE102006017143.8 2006-04-12

Publications (2)

Publication Number Publication Date
WO2007076777A2 true WO2007076777A2 (fr) 2007-07-12
WO2007076777A3 WO2007076777A3 (fr) 2007-08-23

Family

ID=38110038

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2006/002200 WO2007076777A2 (fr) 2005-12-17 2006-12-12 Chaine

Country Status (4)

Country Link
EP (1) EP1977136A2 (fr)
JP (1) JP2009520161A (fr)
DE (1) DE112006003279A5 (fr)
WO (1) WO2007076777A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009003626A1 (de) 2009-03-16 2010-09-30 Cheng, Yue, Dr. Laschenkette
EP2706264A3 (fr) * 2012-09-06 2015-05-13 Jtekt Corporation Chaîne pour transmission variable en continu
DE102019104177A1 (de) * 2019-02-19 2020-08-20 Schaeffler Technologies AG & Co. KG CVT-Laschenkette mit geschickter Anlage zwischen Druckstück und Lasche
CN112178131A (zh) * 2019-07-05 2021-01-05 大同工业株式会社 链
DE102019130424A1 (de) * 2019-11-22 2021-05-27 Schaeffler Technologies AG & Co. KG Wiegedruckstück für ein Wiegedruckstückpaar einer Laschenkette

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112011104412A5 (de) * 2010-12-15 2013-10-02 Schaeffler Technologies AG & Co. KG Laschenkette für ein Kegelscheibenumschlingungsgetriebe
JP6108611B2 (ja) * 2013-05-15 2017-04-05 株式会社椿本チエイン チェーン
JP6298736B2 (ja) * 2014-08-08 2018-03-20 株式会社豊田中央研究所 無段変速機及び無段変速機を設計する方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2102530A (en) * 1981-07-28 1983-02-02 Piv Antrieb Reimers Kg Werner Side-bar chain for infinitely variable cone pulley transmissions
DE19503798A1 (de) * 1994-02-15 1995-08-17 Borg Warner Automotive Verzahnte Kette mit Einzapfen-Schwenkverbindung
EP1555455A2 (fr) * 2004-01-14 2005-07-20 Koyo Seiko Co., Ltd. Chaíne de transmission et dispositif de transmission l'utilisant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2102530A (en) * 1981-07-28 1983-02-02 Piv Antrieb Reimers Kg Werner Side-bar chain for infinitely variable cone pulley transmissions
DE19503798A1 (de) * 1994-02-15 1995-08-17 Borg Warner Automotive Verzahnte Kette mit Einzapfen-Schwenkverbindung
EP1555455A2 (fr) * 2004-01-14 2005-07-20 Koyo Seiko Co., Ltd. Chaíne de transmission et dispositif de transmission l'utilisant

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009003626A1 (de) 2009-03-16 2010-09-30 Cheng, Yue, Dr. Laschenkette
EP2706264A3 (fr) * 2012-09-06 2015-05-13 Jtekt Corporation Chaîne pour transmission variable en continu
US9316287B2 (en) 2012-09-06 2016-04-19 Jtekt Corporation Chain for continuously variable transmission
DE102019104177A1 (de) * 2019-02-19 2020-08-20 Schaeffler Technologies AG & Co. KG CVT-Laschenkette mit geschickter Anlage zwischen Druckstück und Lasche
CN112178131A (zh) * 2019-07-05 2021-01-05 大同工业株式会社 链
CN112178131B (zh) * 2019-07-05 2022-04-26 大同工业株式会社 链
DE102019130424A1 (de) * 2019-11-22 2021-05-27 Schaeffler Technologies AG & Co. KG Wiegedruckstück für ein Wiegedruckstückpaar einer Laschenkette

Also Published As

Publication number Publication date
EP1977136A2 (fr) 2008-10-08
DE112006003279A5 (de) 2008-09-04
JP2009520161A (ja) 2009-05-21
WO2007076777A3 (fr) 2007-08-23

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