WO2020228892A1 - Chaîne articulée présentant une largeur de chaîne pour un mécanisme à lien souple - Google Patents

Chaîne articulée présentant une largeur de chaîne pour un mécanisme à lien souple Download PDF

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Publication number
WO2020228892A1
WO2020228892A1 PCT/DE2020/100336 DE2020100336W WO2020228892A1 WO 2020228892 A1 WO2020228892 A1 WO 2020228892A1 DE 2020100336 W DE2020100336 W DE 2020100336W WO 2020228892 A1 WO2020228892 A1 WO 2020228892A1
Authority
WO
WIPO (PCT)
Prior art keywords
chain
plate
link chain
tab
link
Prior art date
Application number
PCT/DE2020/100336
Other languages
German (de)
English (en)
Inventor
Marius WOHLSCHLEGEL
Manuel Falk
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
Publication of WO2020228892A1 publication Critical patent/WO2020228892A1/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
    • 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
    • F16H—GEARING
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members

Definitions

  • the invention relates to a link chain with a chain width for a
  • plate-link chains are used as a sling for
  • Belt transmission for example a so-called CVT [continuous variable transmission], known as traction means.
  • CVT continuously variable transmission
  • Such a CVT is known, for example, from DE 100 17 005 A1.
  • Such a plate-link chain are for transmitting high torques and high speeds, such as those from the
  • the invention relates to a link chain with a chain width for a
  • Belt drive having at least the following components:
  • ordinal numbers used in the preceding and following description are only used for clear differentiation and do not reflect any order or ranking of the components identified. An ordinal number greater than one does not necessarily mean that another such component must be present.
  • the link chain proposed here is set up as a traction device for a belt drive, for example for a CVT.
  • a link chain forms a loop section on the transmission shafts and two strands between them, one being a tension strand or a load strand and the other being a slack strand.
  • the link chain has a chain width and over this chain width a plurality of link plates are adjacent to one another
  • Tab group not, or at least not all, are directly axially adjacent to one another.
  • the chain width is parallel to the in use
  • the direction of the chain width is referred to as axial and is constantly aligned in the same direction during operation.
  • the chain extension is referred to as the chain running direction, which is as above described runs like a ring and changes its orientation in use via the movement of the link chain.
  • the third spatial direction which is to the other two
  • rocker pressure pieces corresponding to the number of plate groups, in a preferred embodiment designed as rocker pressure piece pairs with a left rocker pressure piece and a right rocker pressure piece when viewed from the side (axial plan view), with the left rocker pressure piece, for example, being in direct contact with a right plate group , the right rocker pressure piece continues to be in direct contact with a left plate group and the two rocker pressure pieces of the
  • Pairs of rocker pressure pieces are in direct contact with one another.
  • Rocker pressure pieces of the rocker pressure piece pair transmit the tensile force of the tabs as a compressive force to each other and roll in one when moving
  • Link chain defined, i.e. the chain width.
  • the ends of the rocker pressure pieces are inclined so as to be approximately parallel
  • Rocker pressure pieces or rocker pressure piece pairs are therefore chained to transmit tensile force by means of the large number of tabs.
  • At least fewer than all of the plates arranged adjacent to one another over the chain width at least one of the plate groups have at least one tip against chain kinking.
  • the other flaps of this at least one (lobed-reduced) flap group are with at least one tip designed to prevent rotation and / or to protect against overlapping, preferably designed without (a single) tip, that is to say without a tip.
  • at least one of the plates of the at least one lug-reduced plate group of the link chain is designed without lobes. It was found that it is quite sufficient in operation if not all of the tabs of the lug-reduced group of tabs have such a tip to prevent chain kinking.
  • the tabs that have such a tip or the tips are, for example, conventional. At least one of the embodiments mentioned here preferably applies to all
  • Two or more tabs are assigned to a tab type if they are of the same length, for example (so-called) short tabs or long tabs, and have the same tips, preferably also have the same geometry, for example the same humps, for receiving and / or securing the rocker pressure piece pairs. It can be due to a different stretch plasticization and
  • the at least one other tab is
  • a link chain often comprises several link types. In some conventional embodiments there is only one
  • Tab type used. In contrast to this, it is proposed here that at least one of the tabs of the tab groups is at least insofar different from the others
  • Chain kinking are provided, preferably this tab is formed free of lobes.
  • Plate groups of the plate chain with lobe-reduced plate groups are shown.
  • the at least one provided tip of the at least one plate of the plate group secures against chain buckling inwards and / or outwards.
  • one tab of the group of tabs with a tip against chain kinking inwards is one of the tabs against a tip
  • Plate groups are designed without such a tip.
  • Merely providing a safeguard against the chain kinking inwards is sufficient for operation. If the plate-link chain is handled properly during transport and when installing the plate-link chain, it is sufficient not to provide any protection against the chain kinking outwards.
  • each of the tab groups only one of the tabs has at least one, preferably exclusively one, tip.
  • this tab has only a single tip, preferably only to secure against chain kinking inwards.
  • the at least one tab which has the at least one tip, has this at least one tip exclusively on one side in the chain running direction.
  • the side of a plate is a front end or a rear end of the respective plate in the chain running direction.
  • These ends with a transverse extension are referred to, for example, as side brackets of the plate, while the two sections with extension in the chain running direction are then referred to as (upper / outer and lower / inner) plate brackets.
  • such a tab with a small amount of lobes, preferably a single lug on one side reduces the number of (potential) contacts. Nevertheless, the security against chain kinking (inwards and / or outwards) is retained. This (further) reduces the effect of the different stretch plasticization and stretch elongation of the straps of a group of straps.
  • a belt drive for a drive train having at least the following components: a first pair of conical pulleys with a first axis of rotation and with a variable axial first pulley spacing;
  • a torque can be transmitted from a transmission input shaft to a transmission output shaft and vice versa, translating, constant or reducing, with the transmission being continuously adjustable at least in some areas.
  • the belt drive is for a drive train, for example one
  • Motor vehicle set up and comprises at least one first pair of conical pulleys arranged on a first shaft, for example the transmission input shaft, and a second pair of conical disks arranged on a second shaft, for example the transmission output shaft, as well as a belt means provided for torque transmission between the conical disk pairs, namely the link chain described above.
  • a pair of conical disks includes two
  • Conical disk also known as loose disk or movable disk
  • the (second) conical disk also known as fixed disk
  • the (second) conical disk is fixed in the direction of the shaft axis (axially fixed).
  • the link chain thus runs on a variable effective circle, i.e. with a variable running radius.
  • the belt drive proposed here has a link chain according to the above description, the link chain having a particularly low effect of different stretching plasticization and stretching elongation, while at the same time providing adequate protection against chain kinking.
  • a drive train having at least the following components:
  • the at least one drive machine for torque transmission by means of the belt drive is connected to the at least one consumer with a variable translation.
  • the drive train for example a motor vehicle set up to propel it via at least one drive wheel, is set up to include one of one or a plurality of drive units, for example one
  • One use is, for example, an electrical generator to provide electrical energy or the transmission of torque to a drive wheel of a motor vehicle to propel it.
  • the use of the belt drive described above is particularly advantageous because the link chain has a very high overall strength and a long service life. Overall, a link chain with a lower (inert) mass is for the same torque
  • Fig. 3 a belt drive in a drive train.
  • FIG. 1 shows a first plate group 10 of a (first) plate link chain 1 (compare FIG. 3), in which, for example, four plates 4, 5, 6, 7 are provided here.
  • the tabs 4, 5, 6, 7 shown are shown in FIG.
  • Tabs 4, 5, 6, 7 are provided with ordinal numbers in the order from left to right. It can be seen here that the second tab 5 and the fourth tab 7 each have lugs 13, 14.
  • the second flap 5 has here exclusively on a single side 15 (marked pars-pro-toto on the second flap 5,
  • the fourth tab 7 here also has two lugs 13, 14 opposite exclusively on a single side 15 (right in the illustration)
  • the first tab 4 and the third Tabs 6 are formed identically with regard to the stress profiles in the material.
  • a second plate group 11 of a (second) plate chain 1 (see Fig. 3) is shown, which for the sake of clarity is similar to the first
  • Tab group 10 is designed. In this respect, reference is made to the previous description. It can be seen here that the second tab 5 and the fourth tab 7 each oppose two tabs 13, 14 or one double tab each
  • the first tab 4 and the third tab 6 are very similar and are formed (almost) identically with regard to the stress profiles in the material. It should be noted that a
  • Link chain 1 (see FIG. 3) usually has only one type of link group, that is to say the first link group 10 shown is generally not arranged in a common link chain 1 with the second link group 11 shown. It should further be noted that in some embodiments the number of plates in one of the plate groups (types) within a plate chain 1 is different from the number of plates in another of the plate groups (types), for example one of the plate group types (for example
  • Tab group 10 comprises only two tabs (for example tabs 4, 5) and another type of tab group (for example tab group 11) comprises three tabs (for example tabs 4, 5, 6).
  • a belt transmission 3 is in a perspective view in a
  • Section of a drive train 17 is shown in which a link chain 1 runs as a traction device on two pairs of conical pulleys 18, 21.
  • the link chain 1 has a chain width 2, so that a defined disk spacing 20, 23 to one
  • the link chain proposed here has a particularly long service life with a high overall strength of the link chain.
  • Link chain 30 Axial direction of chain width 31 Transverse direction of belt drive

Landscapes

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

Abstract

L'invention concerne une chaîne articulée (1) présentant une largeur (2) de chaîne pour un mécanisme à lien souple (3), la chaîne présentant au moins les éléments suivants : - une pluralité d'éclisses (4, 5, 6, 7) ; et - un nombre correspondant d'éléments de pression à bascule (8, 9) présentant une étendue transversale en direction de la largeur (2) de chaîne. La chaîne articulée est principalement caractérisée par le fait qu'un nombre inférieur à l'ensemble des éclisses (5, 7) d'au moins un des groupes (10, 11) d'éclisses présente au moins une pointe (13, 14) empêchant le flambage de la chaîne. La chaîne articulée selon l'invention présente une durée de vie particulièrement longue, tout en ayant une résistance totale élevée.
PCT/DE2020/100336 2019-05-14 2020-04-24 Chaîne articulée présentant une largeur de chaîne pour un mécanisme à lien souple WO2020228892A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019112573 2019-05-14
DE102019112573.1 2019-05-14

Publications (1)

Publication Number Publication Date
WO2020228892A1 true WO2020228892A1 (fr) 2020-11-19

Family

ID=70616894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2020/100336 WO2020228892A1 (fr) 2019-05-14 2020-04-24 Chaîne articulée présentant une largeur de chaîne pour un mécanisme à lien souple

Country Status (2)

Country Link
DE (1) DE102020112410A1 (fr)
WO (1) WO2020228892A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10017005A1 (de) 1999-04-07 2000-10-12 Luk Lamellen & Kupplungsbau Getriebe
WO2007128262A1 (fr) * 2006-05-06 2007-11-15 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Chaîne articulée et son procédé de fabrication
WO2016095913A1 (fr) 2014-12-17 2016-06-23 Schaeffler Technologies AG & Co. KG Chaîne articulée

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10017005A1 (de) 1999-04-07 2000-10-12 Luk Lamellen & Kupplungsbau Getriebe
WO2007128262A1 (fr) * 2006-05-06 2007-11-15 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Chaîne articulée et son procédé de fabrication
WO2016095913A1 (fr) 2014-12-17 2016-06-23 Schaeffler Technologies AG & Co. KG Chaîne articulée

Also Published As

Publication number Publication date
DE102020112410A1 (de) 2020-11-19

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