WO2020052702A1 - Chaîne de galle - Google Patents

Chaîne de galle Download PDF

Info

Publication number
WO2020052702A1
WO2020052702A1 PCT/DE2019/100615 DE2019100615W WO2020052702A1 WO 2020052702 A1 WO2020052702 A1 WO 2020052702A1 DE 2019100615 W DE2019100615 W DE 2019100615W WO 2020052702 A1 WO2020052702 A1 WO 2020052702A1
Authority
WO
WIPO (PCT)
Prior art keywords
link chain
link
chain
intermediate element
plates
Prior art date
Application number
PCT/DE2019/100615
Other languages
German (de)
English (en)
Inventor
Nicolas Schehrer
Pascal Fritz
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
Priority to DE112019004521.0T priority Critical patent/DE112019004521A5/de
Priority to CN201980053184.9A priority patent/CN112567152B/zh
Publication of WO2020052702A1 publication Critical patent/WO2020052702A1/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
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/12—Hauling- or hoisting-chains so called ornamental chains
    • F16G13/16—Hauling- or hoisting-chains so called ornamental chains with arrangements for holding electric cables, hoses, or the like
    • 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
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/24—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using chains or toothed belts, belts in the form of links; Chains or belts specially adapted to such gearing

Definitions

  • the invention relates to a link chain, in particular for a continuously variable transmission gear of a motor vehicle, with chain links which comprise links coupled by pairs of pressure pads, which are formed from a flexible material which comprises fibers which are, at least partially, embedded in a matrix material can.
  • the tabs can also be made without matrix material.
  • continuous fibers can be wound several times around the pairs of pressure pieces to represent or build a flap. Ends of the continuous fibers can be clamped, for example with a suitable clip system, in order to prevent the continuous fibers from loosening or unwinding during operation of the link chain. Forces acting during operation can advantageously be absorbed by friction between the fibers.
  • the invention further relates to a method for producing plates for such a plate chain.
  • German patent application DE 10 2007 023 264 A1 discloses a link chain for a vehicle drive in particular, with a large number of link plates which are articulated to one another via pressure pieces, the pressure pieces running transversely to the longitudinal direction of the link chain and being arranged in openings in the chain links, wherein on the pressure pieces and on the chain plates, respectively curved contact surfaces are arranged, along which the pressure pieces and chain plates rest against one another for the transmission of force, the contact surfaces being provided on the upper and lower contact surface area in the pressure piece height direction between the pressure piece and chain plate, with on the thrust pieces are arranged to be curved, along which the thrust pieces roll against one another for the transmission of force and the rolling faces run in a lengthwise direction of the link chain through a center of gravity of the thrust piece extend the cross-section into an upper area above and a lower area below the cross-sectional plane.
  • a link chain for continuously adjustable conical disk gear is known, the the link assemblies forming the chain links are connected to one another in an articulated manner and the thrust pieces, which are effective transversely to the longitudinal direction of the chain, for transmitting frictional force between the conical disk and the link chain, the tabs consisting of bundled high-strength synthetic fibers, trades or strands which are combined to form endless tabs, the thrust pieces being made of titanium or titanium alloys.
  • a tension cord for continuously variable conical pulley belt transmission for transmitting torques from one pair of friction disks to the other is known, consisting essentially of a tension band and pressure or friction studs arranged thereon.
  • the tension band consisting of tension elements made of flexible, tensile synthetic fibers or yarns or metal strands which are wound individually or in groups continuously or in a certain sequence around pressure or friction cleats or parts thereof at least once.
  • a non-metallic chain link arrangement comprising a plurality of chain links is known, each link consisting of a flattened loop with a pair of elongated, essentially straight links , which are joined at their opposite ends with softly rounded end parts and each flap is formed by winding under tension, a high-strength filament material on a winding mandrel, and then the filament material is fixed on the winding mandrel in a matrix of hardened plastic.
  • the object of the invention is to provide a link chain, in particular for a continuously variable transmission gear of a motor vehicle, with chain links which comprise links coupled by pairs of pressure pieces, which are formed from a flexible material which comprises fibers which, at least partially, are integrated into one Matrix material can be embedded, in particular with regard to their acoustic properties and / or the rigidity in the operation of the link chain, to improve.
  • the task is for a link chain, in particular for a continuously variable transmission gear of a motor vehicle, with chain links which comprise links coupled by pairs of pressure pieces, which are formed from a flexible material which comprises fibers which, at least partially, are embedded in a matrix material
  • chain links which comprise links coupled by pairs of pressure pieces, which are formed from a flexible material which comprises fibers which, at least partially, are embedded in a matrix material
  • the matrix material can be applied at points, like an adhesive, to hold the fibers together.
  • the fibers can also be completely or partially embedded in the matrix material.
  • the intermediate elements prevent relative movements between the tabs and the Wieprint pieces. This reduces wear during the operation of the link chain.
  • the intermediate elements hold the pairs of pressure pieces within the tabs in position.
  • the contacts between the tabs and the cradle pieces can be, for example, a semicircular shape, an oval shape or a rounded shape. The at least partially round or rounded shape is advantageous for loading the tabs in the pulling direction.
  • a link chain in particular for a stepless transmission gear of a motor vehicle with chain links which comprise links coupled by pairs of pressure pieces which are formed from a flexible material which comprises fibers which, at least partially, are made into a matrix material
  • facing weighing pressure pieces are arranged and designed within the links so that these weighing pressure pieces remain spaced from the links of the link chain during operation of the link chain.
  • the weighing pressure pieces facing each other perform movements relative to the respectively assigned weighing pressure piece in a pair of weighing pressure pieces.
  • the arrangement and design of the weighing pressure pieces facing one another reliably prevents these weighing pressure pieces from coming into contact with the tabs. This effectively prevents unwanted wear.
  • the weighing pressure pieces facing one another advantageously have smaller dimensions between two long legs of a tab than the weighing pressure pieces facing away from one another.
  • a preferred embodiment of the link chain is characterized in that the intermediate element has two concave surfaces facing away from one another. The concave surfaces enable operational relative movements of the facing thrust pieces relative to the facing thrust pieces within the tabs.
  • Another preferred exemplary embodiment of the link chain is characterized in that weighing pressure pieces facing the intermediate element are arranged and designed within the links so that these weighing pressure pieces remain spaced apart from the links of the link chain during operation of the link chain. In the operation of the link chain, undesired wear between the weighing pressure pieces facing the intermediate elements and the links is effectively prevented.
  • the intermediate element can also serve as a connecting means for a plurality of tabs which are formed from fibers, in particular from continuous fibers. The ends of the fibers, in particular continuous fibers, can advantageously also be held together with the aid of a point adhesive.
  • the intermediate element has at least one stop, which serves to fix the intermediate element transversely to a chain running direction.
  • the stop is advantageously integrally connected to the intermediate element. This simplifies the assembly of the intermediate elements.
  • the intermediate elements advantageously serve to securely position the individual elements of the link chain relative to one another when the link chain is installed, for example in a transmission.
  • a stop element which serves to fix the intermediate element transversely to the chain running direction, is attached to at least one weighing pressure piece facing the intermediate element.
  • the attachment of the stop element is, for example, integral, in particular by welding the stop element to the weighing pressure piece. In this way it is prevented in a simple manner that the intermediate elements perform undesired movements, in particular move out of the link chain, when the link chain is being transported or when the link chain is being installed in a gearbox or when the link chain is in operation.
  • link chain is characterized in that the matrix material within the link plates constitutes a protective layer that prevents contact of weighing pressure pieces within the link plates with the fibers. prevents. This reliably prevents undesirable damage to the fibers in the link plates during operation of the link chain.
  • the link chain is characterized in that the intermediate element is formed from the matrix material. This simplifies the manufacture and assembly of the tabs.
  • the matrix material can also be arranged outside the tabs, for example in order to represent a web optimized for pressure loads, which serves to ensure a desired distance between two weighing joints.
  • Another preferred exemplary embodiment of the link chain is characterized in that weighing pressure pieces facing away from the intermediate element are connected to the matrix material in a positive and / or integral manner within the links. As a result, these weighing pressure pieces can be fixed relative to the tabs in a simple manner.
  • the above-mentioned object is alternatively or additionally achieved in that the link plates are separated from a closed hollow profile.
  • the closed hollow profile can have a round, oval or angular, in particular essentially rectangular, cross-section.
  • the closed hollow profile can also have two long legs, which are connected to one another by two circular, short legs.
  • the closed hollow profile comprises a matrix material in which fibers are embedded. The fibers are advantageously embedded in the matrix material in such a way that the tabs are very stable in the circumferential direction, in particular under tensile load. During manufacture, the tabs can simply be cut off from the closed hollow profile.
  • FIGS. 1 to 5 each show a section of a link chain according to five different exemplary embodiments in cross section through pairs of pressure plates, that is to say transversely to a chain running direction.
  • FIGS. 1 to 5 show five different exemplary embodiments of a link chain 10, 20; 30; 40; 50 shown in cross section by weighing pressure pieces 1 to 6.
  • the same reference numerals are used in FIGS. 1 to 5 to designate identical or similar parts.
  • the similarities of the link chains 10; 20; 30; 40; 50 described. The differences between the individual exemplary embodiments are then discussed.
  • FIGS. 1 to 3 six weighing pressure pieces 1 to 6 are arranged in three weighing pressure piece pairs 7 to 9. In FIGS. 3 to 5, four weighing pressure pieces 1 to 4 are arranged in two weighing pressure piece pairs 7, 8.
  • the weighing pressure pieces 1, 2; 3, 4; 5, 6 of a pair of pressure plates 7 to 9 have mutually facing contact surfaces with which the pressure plates 1, 2; 3, 4; 5, 6 of a pair of pressure pads 7 to 9 lie against one another in a known manner.
  • the curvature of the contact surfaces enables relative movements between the pressure pads 1, 2; 3, 4; 5, 6 in the pairs of weighing plungers 7 to 9.
  • the tabs 11, 12 each comprise a circle or an ellipse made of flexible fibers that are embedded in a matrix material. This provides the advantage that the tabs 11, 12 can be subjected to very high loads in the pulling direction. Due to the flexibility of the lugs, a contact point between a lug and a weighing pressure piece of the lug can adapt to the geometry of the weighing pressure piece or weighing piece.
  • the material of the tab is advantageously stressed essentially only in the pulling direction and not in the bending direction. An elastic matrix material can advantageously be used for this purpose. This way, the material of the tab can be better used.
  • the pairs of weighing pressure pieces 7 to 9 represent weighing joints within the plates 11, 12, the plates 11, 12 advantageously having larger radii of curvature than conventional plates made of a metallic material.
  • the fibers (not shown) are formed, for example, from a carbon material.
  • the carbon material has the advantage that the fibers can potentially achieve higher stiffnesses than steel tabs and also higher strengths than steel tabs.
  • the carbon material can be used, for example, in the form of fabric or ropes.
  • the tabs 11, 12 made of the flexible material also provide the advantage that less space for displaying the link chain 10; 20 is needed.
  • the installation space between two weighing joints can be reduced, which is evident in connection with an average division sequence with regard to the acoustic properties of the link chain 10; 20 proves to be advantageous.
  • link chain 10; 20 a lower weight, so that less kinetic energy is released in the transverse direction, as a result of which less structure-borne noise is transmitted into the transmission housing from chain-center vibrations.
  • An intermediate element 13, 14 is arranged between each of the facing pressure pieces 2, 3 and 4, 5 within the tabs 11, 12.
  • the intermediate element 13 is thinner than the intermediate element 14 in a chain running direction, which corresponds to a horizontal direction in FIGS. 1 and 2. Otherwise, the two intermediate elements 13, 14 each have a concave surface 15, 16.
  • the concave surfaces 15, 16 of the intermediate element 13 bear complementary, ie convex surfaces, of the weighing pressure pieces 2, 3.
  • the intermediate elements 13, 14 represent spacer elements which are advantageously loaded only in one pressure direction.
  • the intermediate elements 13, 14 can therefore be formed from a light material, for example from a plastic material or from an aluminum alloy.
  • intermediate elements 23, 24 are arranged in the links 11, 12 instead of the intermediate elements 13, 14.
  • the intermediate elements 23, 24 are equipped with stops 32, 33 which enable the intermediate elements 23, 24 to be positioned axially relative to the tabs 11, 12.
  • the stop elements 27, 28, 34 to 36 are welded to the pressure plates 2, 3, 4, 5, 6.
  • the intermediate elements 23, 24 are thus positioned in a simple manner in an axial direction, that is to say perpendicular to the plane of the drawing in FIG. 2, relative to the plates 11, 12 of the plate chain.
  • the weighing pressure pieces 2, 3 and 5 are somewhat smaller in the vertical direction in the link chain 20 in FIG. This advantageously creates free spaces 25, 26 between the weighing pressure pieces 2 and the respectively assigned tab 11.
  • the free spaces 25, 26 prevent the weighing pressure pieces 2 from coming into contact with the tab 11 in a simple manner.
  • the link 31 of the link chain 30 shown in FIG. 3 is designed without an intermediate element.
  • the tab 31 is provided with a protective layer 37, 38.
  • the protective layer 37, 38 is advantageously formed from matrix material 39, in which no fibers are embedded.
  • the matrix material 39 mainly serves to keep the fibers (not shown) in shape in the tab 31.
  • the matrix material 39 advantageously prevents the weighing pressure pieces 2 and 3 from coming into contact with the fibers in the tab 31.
  • the intermediate element 45 is connected in one piece to the link 41.
  • the intermediate piece 45 is formed, for example, from the matrix material 42, from which a fiber layer 43 of the tab 41 is also formed. Fibers (not shown) are embedded in the matrix material 42 in the fiber layer 43 of the tab 41.
  • the intermediate element 45 merges into a protective layer 44, which is provided on the inside of the tab 41 in a manner similar to that of the tab 30 in FIG. 3.
  • a web 53 is additionally formed on the right of the link 51 in FIG. 5 from the matrix material 52.
  • the Web 53 advantageously serves to ensure the distance between the weighing joints of the link chain 50 during operation.

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

L'invention concerne une chaîne de Gall (10), destinée en particulier à une transmission à variation continue d'un véhicule automobile, ladite chaîne de Galle comprenant des maillons de chaîne qui comprennent des éclisses (11, 12) qui sont accouplées par des paires de pièces de pression à bascule (7-9) et qui sont formées à partir d'un matériau souple qui comprend des fibres qui peuvent être noyées au moins partiellement dans un matériau matriciel. Afin d'améliorer la chaîne de Galle (10), notamment en ce qui concerne ses coûts de fabrication et/ou ses propriétés acoustiques pendant le fonctionnement de la chaîne de Galle, un élément intermédiaire (13, 14) est disposé dans les éclisses entre les paires de pièce de pression à bascule.
PCT/DE2019/100615 2018-09-11 2019-07-02 Chaîne de galle WO2020052702A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112019004521.0T DE112019004521A5 (de) 2018-09-11 2019-07-02 Laschenkette
CN201980053184.9A CN112567152B (zh) 2018-09-11 2019-07-02 平环链

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018122103.7A DE102018122103A1 (de) 2018-09-11 2018-09-11 Laschenkette
DE102018122103.7 2018-09-11

Publications (1)

Publication Number Publication Date
WO2020052702A1 true WO2020052702A1 (fr) 2020-03-19

Family

ID=67262040

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2019/100615 WO2020052702A1 (fr) 2018-09-11 2019-07-02 Chaîne de galle

Country Status (3)

Country Link
CN (1) CN112567152B (fr)
DE (2) DE102018122103A1 (fr)
WO (1) WO2020052702A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3234454A1 (de) 1982-09-17 1984-03-22 Walter 6370 Oberursel Schopf Zugstrang fuer kegelscheibenumschlingungsgetriebe
DE3740504C1 (en) 1987-11-30 1989-06-15 Walter Schopf Flat link articulated chain for infinitely variably adjustable bevel crown gear mechanisms
US4863418A (en) * 1989-02-13 1989-09-05 Envirex Inc. Non-metallic chain including wound composite chain links and molded pins
DE10203942A1 (de) * 2001-02-08 2002-09-05 Luk Lamellen & Kupplungsbau Laschenkette
DE102007023264A1 (de) 2006-06-10 2007-12-13 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Laschenkette

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7950213B2 (en) * 2008-07-17 2011-05-31 Fenner U.S., Inc. Reinforced belt having reduced electrical resistivity and method for producing same
CN107725679B (zh) * 2017-11-02 2020-07-07 陈学琴 推块复合无极变速器传动链

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3234454A1 (de) 1982-09-17 1984-03-22 Walter 6370 Oberursel Schopf Zugstrang fuer kegelscheibenumschlingungsgetriebe
DE3740504C1 (en) 1987-11-30 1989-06-15 Walter Schopf Flat link articulated chain for infinitely variably adjustable bevel crown gear mechanisms
US4863418A (en) * 1989-02-13 1989-09-05 Envirex Inc. Non-metallic chain including wound composite chain links and molded pins
EP0382992A1 (fr) 1989-02-13 1990-08-22 ENVIREX Inc. Chaîne non métallique à chaînons composites à enroulements et axes moulés
DE68913952T2 (de) 1989-02-13 1994-06-23 Envirex Nichtmetallische Kette mit Kettengliedern, die eine gewickelte Faserverstärkung aufweisen und mit geformten Bolzen.
DE10203942A1 (de) * 2001-02-08 2002-09-05 Luk Lamellen & Kupplungsbau Laschenkette
DE102007023264A1 (de) 2006-06-10 2007-12-13 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Laschenkette

Also Published As

Publication number Publication date
CN112567152A (zh) 2021-03-26
DE102018122103A1 (de) 2020-03-12
DE112019004521A5 (de) 2021-05-20
CN112567152B (zh) 2022-11-01

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