EP2449285A1 - Courroie d'entraînement élastique, en particulier courroie trapézoïdale crantée, avec perte de tension réduite - Google Patents

Courroie d'entraînement élastique, en particulier courroie trapézoïdale crantée, avec perte de tension réduite

Info

Publication number
EP2449285A1
EP2449285A1 EP10723575A EP10723575A EP2449285A1 EP 2449285 A1 EP2449285 A1 EP 2449285A1 EP 10723575 A EP10723575 A EP 10723575A EP 10723575 A EP10723575 A EP 10723575A EP 2449285 A1 EP2449285 A1 EP 2449285A1
Authority
EP
European Patent Office
Prior art keywords
drive belt
belt according
cord
dtex
pet
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.)
Ceased
Application number
EP10723575A
Other languages
German (de)
English (en)
Inventor
Henning Kanzow
Falk Lorenz
Tim Fiss
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.)
ContiTech Antriebssysteme GmbH
Original Assignee
ContiTech Antriebssysteme 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 ContiTech Antriebssysteme GmbH filed Critical ContiTech Antriebssysteme GmbH
Publication of EP2449285A1 publication Critical patent/EP2449285A1/fr
Ceased 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
    • F16G5/20—V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/447—Yarns or threads for specific use in general industrial applications, e.g. as filters or reinforcement
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]

Definitions

  • Elastic drive belt in particular V-ribbed belt, with reduced tension loss
  • the invention relates to a drive belt with a base body made of a polymeric material having elastic properties, comprising a cover layer as a belt back and a substructure with a power transmission zone, wherein
  • Interposed layer of a polymeric material having elastic properties is arranged, wherein in the intermediate layer at least one tensile strand in
  • Cordlage forms, between the Cordlage and the cover layer and / or between the Cordlage and the base an intermediate layer of a polymeric material having elastic properties is arranged.
  • Functional state are endlessly closed, can be used as flat belts, V-belts,
  • V-ribbed belt Be formed V-ribbed belt, timing belt and clutch belt. Of particular importance is the V-ribbed belt, reference being made in this regard to the following patent literature. DE 38 23 157 A1
  • the elasticity, including the bending elasticity of a drive belt is achieved in that the base body and thus the cover layer and the base of a polymeric material with elastic properties, in which case the two groups of materials elastomers and thermoplastic elastomers are to be mentioned.
  • the drive belt is provided with at least one embedded pull cord according to one of the three variants mentioned above, wherein in particular a plurality of tensile strands form a reinforcement layer or Switzerlandamide.
  • a tension cord in cord construction wherein in this respect there are different material concepts according to the prior art. The main types of materials are now presented in more detail below.
  • V-ribbed belts with PES tensile strand are most commonly used.
  • Typical cord constructions with PES are
  • KR tensile cord pulls made of PA in particular in the form of PA6.6 and P A4.6, are usually used, which are characterized by a lower modulus.
  • Another problem with a PA tensile strand is too high a bearing shrinkage. Up to now, attempts have been made to reduce these by a tension-free assembly of the belts (EP 0 831 247 B1).
  • Glass fibers and carbon fibers are unsuitable for elastic KRR because of their high modulus character and low stretchability.
  • the drive belts can not be made arbitrarily wide. In order to increase the power transmission per belt width, so an improvement in the power transfer force of a pull string itself is required.
  • the object of the invention is a low-modulus drive belt, in particular a Ribbed belt to provide using a low modulus cord, associated with an increase in life in terms of a reduced
  • the tensile strand consists wholly or partly of a polyethylene terephthalate (PET), wherein the PET is formed from a yarn, associated with the following yarn and cord parameters: - a cord length weight ⁇ 3600 dtex (feature group I);
  • the yarn parameters refer exclusively to the PET as the raw yarn, regardless of whether the tow strand is wholly or partially made of PET.
  • the Cord parameters refer both to a tensile strand formed exclusively of PET and to a tensile strand in the form of a hybrid system, which will be presented in more detail.
  • HMLS high modulus, low shrinkage
  • a test series has shown that for the production of the cord a raw yarn is particularly advantageous, which shows a heat shrinkage of 3.9% at 177 ° C and a corresponding force of 4.0 cN / dtex at 5% elongation at 25 ° C. having.
  • a heat shrinkage force of the cord > 0.18 cN / dtex
  • Cord shrinkage force according to feature group IV include the respective force per
  • tpm means "turns per meter” and is a typical unit in textile technology in all kinds of turns.
  • the length weight of the strands is as in the
  • Length weight (manufacturer) of the raw yarn used for the production of the cord (compare DIN 53830-3). Because of the rotations and the stretching, the actual length weight (actual fineness) may deviate from it.
  • the Cordina is the Istfö (see DIN 53830-3) of the textile portion of the Cordes (adhesive layers).
  • the tensile strand partially consists of PET, namely in a quantity majority of PET.
  • the PET can here with a polyamide (PA), polyimide (PI), aramid, polyvinyl acetal (PVA), polyester (PES), polyetheretherketone (PEEK) or a polyethylene-2,6-naphthalate (PEN) or in a combination of the aforementioned materials.
  • PA polyamide
  • PI polyimide
  • PVA polyvinyl acetal
  • PET polyester
  • PEEK polyetheretherketone
  • PEN polyethylene-2,6-naphthalate
  • the adhesion of the PET to the surrounding polymer material can be improved, in particular a PET / P A hybrid system being mentioned, since PA is particularly good
  • the PET content within a tensile strand is liable to be activated.
  • Fig. 1 shows a cross section of a V-ribbed belt in two versions
  • Fig. 2 shows another embodiment of a V-ribbed belt in three-dimensional
  • the substructure 1 shows a drive belt 1 in the form of a V-ribbed belt with a cover layer 2 as belt back, a single-layer reinforcement layer 3 with longitudinally extending tension strands 4 and with a substructure 5.
  • the substructure has a V-rib structure formed by ribs 6 and grooves 7
  • the substructure comprises the power transmission zone 8.
  • the cover layer 2 and the substructure 5 form as a whole the main body of a polymeric material having elastic properties, in particular in the form of a vulcanized rubber mixture containing at least one rubber component and Mischingingredienzien.
  • the rubber component used is in particular an ethylene-propylene rubber (EPM), an ethylene-propylene-diene rubber (EPDM),
  • HNBR Hydrogenated nitrile rubber
  • CR chloroprene rubber
  • FKM fluoro rubber
  • NR natural rubber
  • SBR styrene-butadiene rubber
  • BR butadiene rubber
  • Rubber component in particular with one of the aforementioned types of rubber, blended, for example in the form of an EPM / EPDM or SBR / BR blend. Of particular importance is EPM or EPDM or an EPM / EPDM blend.
  • the mixture ingredients comprise at least one crosslinker or a
  • Crosslinking system crosslinking agent and accelerator
  • Other mixing ingredients are usually still a filler and / or a processing aid and / or a
  • Additives for example fibers and color pigments.
  • the tension cords 4 are embedded here without intermediate layer in the body.
  • Pull cord in Cordkonstrument consists primarily of one
  • PET Polyethylene terephthalate
  • PA polyamide
  • Each tensile strand 4 may additionally be equipped with an adhesive layer, the
  • a resorcinol-formaldehyde latex for example, a resorcinol-formaldehyde latex (RFL).
  • RTL resorcinol-formaldehyde latex
  • the drive belt 1 is provided within its power transmission zone 8 with a coating 9 or 10, in the form of a flocking (section A), for example with a cotton or aramid flock according to DE 38 23 157 Al and DE 100 16 351 Al, or Form of a textile cover according to DE 10 2006 007 509 Al.
  • a coating 9 or 10 in the form of a flocking (section A), for example with a cotton or aramid flock according to DE 38 23 157 Al and DE 100 16 351 Al, or Form of a textile cover according to DE 10 2006 007 509 Al.
  • textile supports in particular again in the form of a woven, knitted or knitted fabric.
  • the textile support is preferably a knitted or knitted fabric. With such a coating, a combination of wear protection and noise insulation is achieved.
  • the coating may be for the purpose of fulfilling the additional criterion of
  • a fluoroplastic which is in particular polytetrafluoroethylene (PTFE) and / or polyvinyl fluoride (PVF) and / or polyvinylidene fluoride (PVDF).
  • PTFE polytetrafluoroethylene
  • PVDF polyvinyl fluoride
  • the fluoroplastic can consist of a film, in particular a PTFE film, or of a film composite, in particular of a PTFE / PA film, the PTFE forming the direct upper layer in the case of a film composite (DE 10 2008 012 044.8).
  • a preferred alternative to this is to impregnate or seal a textile overlay with a fluoroplastic.
  • the additional measure of the coating which can also be applied to the cover layer 2 (exemplary embodiment according to FIG. 2), leads, in conjunction with the novel tension cord design, to a long service life of the drive belt.
  • FIG. 2 now shows a further drive belt 11, likewise in the form of a V-ribbed belt, which comprises a cover layer 12, a single-layer reinforcement layer 13 and a substructure 16 with a V-ribbed zone 19 formed by ribs 20 and grooves 21.
  • the reinforcement layer is also formed here of individual tensile cords 14, which consist entirely or partially of PET.
  • the reinforcement layer 13 and the tension cords 14 are completely surrounded by an embedding mixture, which forms the intermediate layer 15, so that in this way an effective overall composite of cover layer 12, reinforcement layer 13 and
  • Substructure 16 is formed.
  • the intermediate layer 15 consists of a polymeric material having elastic properties, preferably again in the form of a vulcanized rubber mixture.
  • the substructure 16 itself here also comprises a further elastic intermediate layer 17, in particular based on the abovementioned rubber mixture, which is reinforced with fibers 18, in particular with textile fibers.
  • the fibers consist of cotton, cellulose, an aramid, in particular p-aramid, a polyamide (PA), in particular PA6 or PA6.6, a polyvinyl acetal (PVA) or a polyethylene terephthalate (PET).
  • the fibers may be in the form of a pulp or in short fibers.
  • Short fibers is the length ⁇ 8 mm, in particular ⁇ 5 mm.
  • the entire base 16 and the cover layer 12 and the two intermediate layers 15 and 17 may be reinforced with fibers of the type mentioned above.
  • both the cover layer 12 and the force transmission zone 22 of the substructure 16 are provided with a coating 23 or 24 in the form of a textile support.
  • a coating 23 or 24 in the form of a textile support.
  • KRR V-ribbed belt
  • the KRR (a, b, c) were stored at room temperature for 270 days.
  • the following data were determined with regard to the shrinkage of the stock:
  • the KRR is used in particular in a KRR drive without automatic tensioning system.
  • the preload is 0.0005 N / dtex.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Woven Fabrics (AREA)

Abstract

L'invention concerne une courroie d'entraînement (1) présentant un corps de base formé dans un matériau polymère avec des propriétés élastiques, comprenant une couche de revêtement (2) comme dos de courroie et une sous-structure (5) avec une zone de transmission de force (8), au moins un câble de traction (4) conçu en corde étant inséré également dans la courroie d'entraînement, trois variantes de câble de traction étant présentées à ce sujet de façon plus précise. Selon l'invention, le câble de traction (4) est complètement ou partiellement à base d'un poly(téréphtalate d'éthylène) (PET), le PET étant constitué d'un fil, associé aux paramètres de fil et de corde suivants : — un poids de longueur de corde ≤ 3600 dtex ; — une course de rétrécissement à chaud du fil ≤ 5 % après 2 minutes à 177°C et pour une prétension de 0,0005 N/dtex ; — une force correspondante du fil ≥ 3,4 cN/dtex pour une extension de 5 % à 25°C et pour une prétension de 0,0005 N/dtex ; et — une force de rétrécissement à chaud de la corde ≥ 0,12 cN/dtex à l'air chaud à 160°C après 10 minutes et pour une prétension de 0,0005 N/dtex. La courroie d'entraînement (1) est conçue en particulier sous forme de courroie trapézoïdale crantée. Cette courroie est utilisée ici de préférence dans un entraînement par courroie trapézoïdale crantée sans système de serrage automatique.
EP10723575A 2009-07-01 2010-05-27 Courroie d'entraînement élastique, en particulier courroie trapézoïdale crantée, avec perte de tension réduite Ceased EP2449285A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009026077A DE102009026077A1 (de) 2009-07-01 2009-07-01 Elastischer Antriebsriemen, insbesondere Keilrippenriemen, mit vermindertem Spannungsverlust
PCT/EP2010/057312 WO2011000637A1 (fr) 2009-07-01 2010-05-27 Courroie d'entraînement élastique, en particulier courroie trapézoïdale crantée, avec perte de tension réduite

Publications (1)

Publication Number Publication Date
EP2449285A1 true EP2449285A1 (fr) 2012-05-09

Family

ID=42635199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10723575A Ceased EP2449285A1 (fr) 2009-07-01 2010-05-27 Courroie d'entraînement élastique, en particulier courroie trapézoïdale crantée, avec perte de tension réduite

Country Status (6)

Country Link
US (1) US20120115658A1 (fr)
EP (1) EP2449285A1 (fr)
CN (1) CN102472364A (fr)
BR (1) BRPI1015925A2 (fr)
DE (1) DE102009026077A1 (fr)
WO (1) WO2011000637A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010015901A1 (de) 2010-03-10 2011-09-15 Contitech Antriebssysteme Gmbh Antriebsriemen, insbesondere Keilrippenriemen, mit einer Gewebeauflage
DE102011002230A1 (de) 2011-04-21 2012-10-25 Contitech Antriebssysteme Gmbh Antriebsriemen, insbesondere Keilrippenriemen, mit verbesserter Reißfestigkeit
DE102011056332A1 (de) 2011-12-13 2013-06-13 Contitech Antriebssysteme Gmbh Elastischer Antriebsriemen, insbesondere Keilrippenriemen, mit verringertem Schrumpfungsverhalten und Riementrieb
DE102011121643A1 (de) * 2011-12-20 2013-06-20 Arntz Beteiligungs Gmbh & Co. Kg Riemen mit Textilauflage
CN102677339A (zh) * 2012-05-29 2012-09-19 蔡紫林 布料
CN102677289A (zh) * 2012-05-29 2012-09-19 蔡紫林 一种纺织布
CN102677274A (zh) * 2012-05-29 2012-09-19 蔡紫林 纺织布
DE112014001531T5 (de) * 2013-03-21 2015-12-03 Bando Chemical Industries, Ltd. Reibantriebsriemen
JP6023736B2 (ja) 2013-03-29 2016-11-09 三ツ星ベルト株式会社 Ｖリブドベルト
CN106931106B (zh) * 2015-01-29 2019-04-12 浙江精深实业有限公司 一种应用在斜切机的皮带传动装置
DE102015215149A1 (de) 2015-08-07 2017-02-09 Contitech Antriebssysteme Gmbh Antriebsriemen
JP6114482B1 (ja) * 2015-10-09 2017-04-12 バンドー化学株式会社 Ｖリブドベルト及びその製造方法
DE102016209633A1 (de) * 2016-06-02 2017-12-07 Contitech Antriebssysteme Gmbh Keilriemen und Verfahren zu seiner Herstellung
DE102017219339A1 (de) * 2017-10-27 2019-05-02 Contitech Antriebssysteme Gmbh Artikel mit mehrfach abwechselnd plattierter Textilauflage
DE102021201705A1 (de) * 2021-02-23 2022-08-25 Contitech Antriebssysteme Gmbh Keilrippenriemen

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Also Published As

Publication number Publication date
US20120115658A1 (en) 2012-05-10
WO2011000637A1 (fr) 2011-01-06
CN102472364A (zh) 2012-05-23
BRPI1015925A2 (pt) 2016-04-26
DE102009026077A1 (de) 2011-01-05

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