EP2356055B1 - Moyen de traction, transmission par lien souple pourvue dudit moyen de traction et ascenseur associé - Google Patents

Moyen de traction, transmission par lien souple pourvue dudit moyen de traction et ascenseur associé Download PDF

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Publication number
EP2356055B1
EP2356055B1 EP09783579A EP09783579A EP2356055B1 EP 2356055 B1 EP2356055 B1 EP 2356055B1 EP 09783579 A EP09783579 A EP 09783579A EP 09783579 A EP09783579 A EP 09783579A EP 2356055 B1 EP2356055 B1 EP 2356055B1
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EP
European Patent Office
Prior art keywords
pulling means
tension members
traction
means according
sheathed
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.)
Active
Application number
EP09783579A
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German (de)
English (en)
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EP2356055A1 (fr
Inventor
Hubert Göser
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
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ContiTech Antriebssysteme GmbH
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Publication of EP2356055A1 publication Critical patent/EP2356055A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/062—Belts
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
    • D07B5/006—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties by the properties of an outer surface polymeric coating
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2007—Elevators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/39—Cord and rope holders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/44—Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44017—Clasp, clip, support-clamp, or required component thereof with specific mounting means for attaching to rigid or semirigid supporting structure or structure-to-be-secured

Definitions

  • the invention relates to a traction means, in particular for an elevator installation, a traction mechanism drive with this traction means and at least one traction sheave and an elevator installation, comprising this traction mechanism drive.
  • Traction means and traction mechanisms for elevator systems are known in the art.
  • Ropes or belts are frequently used, with flat belts, V-ribbed belts or toothed belts being used as belts.
  • each individual rope is uniquely assigned its own rope groove on the traction sheave or other disk which drives the traction means.
  • Each rope dives at least in part of its diameter in the corresponding rope groove.
  • Each individual rope is an independent tension element and can also be operated individually. For higher outputs, either several ropes can be used in parallel or the rope diameter can be increased.
  • the single rope is not only traction means for transmitting the tensile forces, but is also directly involved in the transmission of traction forces.
  • Ropes as traction means have the advantage that the force is transmitted directly from the traction sheave on the ropes.
  • the EP 1 396 458 A2 discloses, for example, an elevator device in which a flat belt made of elastomeric material reinforced with reinforcements is used as the traction means.
  • the EP 1 555 234 B1 discloses an elevator system with a V-ribbed belt.
  • Belts offer over individual ropes the advantage that on the one hand the handling is easier, since during construction or maintenance of the belt drive not every single rope must be placed on each corresponding groove of the traction disc, but only the elastomeric body in which the tension members are embedded.
  • small traction sheave diameter can be used because the embedded tension members usually have relatively small diameters.
  • belts as traction means are virtually maintenance-free, since no lubrication is required.
  • the transferable force is u.a. also dependent on the shear strength of the elastomeric material. Due to the shear of the elastomeric material such a belt is fatigued.
  • the US Pat. No. 6,739,433 discloses a traction means for an elevator system, which is designed as a profiled flat belt, so that the area available for friction between traction disk and belt is increased.
  • the transferable force is thus higher than in a non-profiled flat belt, but here is the zone of power transmission between the traction sheave and traction means still clearly spaced from the tension members by a thick compared to the diameter of a tension carrier elastomer layer of the elastomer body, so that the elastomeric material of Flat belt is also heavily loaded on shear.
  • a traction means which consists of a plurality of juxtaposed and spaced apart tension members in the form of steel cables, which are sheathed by elastomer and are interconnected by a common backing layer.
  • EP 1 746 061 A1 discloses a support means end connection for attaching a suspension means in an elevator installation.
  • the suspension element is in the form of a V-ribbed belt and has an elastomer sheathing.
  • the invention has for its object to provide a traction means of the type described, which is easy to handle and which can efficiently transfer high tensile forces without the risk of premature material fatigue.
  • traction mechanism of traction means and traction sheave high tensile forces without the risk of premature material fatigue should be transferred and it should be compared to the known belt technology a less broad-based drive unit must be required.
  • the traction means has tensile carriers which are encased by elastomeric material to coated tension members, wherein the sheathed tensile carriers in the cross section of the traction means in a plane next to each other are arranged spaced from each other, so that between two sheathed tension members a free space is formed, wherein the sheathed tensile carriers are connected by a back layer with each other, wherein the free space on the side facing away from the back layer from beginning to at least beyond the center of the reinforcing member and wherein the ratio of the second diameter of the sheathed strength member to the first diameter of the reinforcement is between 1.05 and 2.25.
  • the traction device according to the invention which can also be referred to as a "composite rope", is easy to handle and is almost maintenance-free.
  • the traction device consists of several tension members, which are comparable to several individual ropes of the rope technology.
  • the tensile carriers are sheathed with a very thin elastomer layer to the diameter of the tension member and connected to each other with a backing layer.
  • the tension members are spaced apart on their lying on the traction disc wide side only by a very thin elastomer layer of the traction surface.
  • the object is achieved with respect to the traction mechanism in that it consists of a described in this application traction means and at least one traction sheave through which the traction means is driven, wherein each sheathed tensile carrier of the traction means engages in a respective corresponding groove of the traction sheave, said the elastomeric backing layer is disposed on the side of the tension members facing away from the side engaging the grooves of the traction sheave, and wherein at least one bare tensile member engages at least 5% of its diameter in the corresponding groove of the traction sheave.
  • the thickness of the sheath of the tension member is in the range of 0.2 to 2 mm. In a preferred embodiment of the invention, the thickness of the sheath of the tension member is in the range of 0.5 to 1 mm. With these small thicknesses of the sheathing, this is subjected to a particularly low level of shear and the transmittable tensile force is correspondingly high. The life of the traction means and their handling are improved.
  • the sheath of the tension members and the back layer consist in one embodiment of the same material.
  • the casing consists of a first elastomer, which differs from a second elastomer of the back layer.
  • the elastomer or elastomers is preferably a polyurethane or polyurethane.
  • Polyurethane has both good friction and good adhesion properties and is relatively insensitive to shear.
  • the sheathing of the individual cables has an outer contour facing the traction sheave whose cross-section is a part-circular shape.
  • the sheathing in all embodiments in cross-section in approximately circular reinforcement is carried out with uniform thickness around the reinforcement around. The shear stresses during operation of the traction mechanism are the lowest in this embodiment.
  • the cross section of the outer contour is not part-circular, but for example trapezoidal, conical, elliptical, arcuate or square.
  • the configuration of the cross sections of the casing in different geometries has the advantage that the composite rope is therefore adaptable to a large number of traction disk profiles.
  • the ratio of the overall diameter of the sheathed tension members (d2) to the thickness (D) of the composite means is ⁇ 1.
  • the back layer has a thickness c, where c ⁇ half the thickness (D) of the traction means.
  • the thickness c may be variable, wherein the thickness c above the center of the tension member is thinner than between the tension members above the free space.
  • C has at least the layer thickness of the sheath at its thinnest point. The maximum layer thickness of c should not exceed 1 ⁇ 2 D, as otherwise the bending flexibility will decrease considerably and larger bending diameters will be necessary.
  • the individual ropes of the composite rope are spaced apart such that the distance between the centers of the individual ropes is less than or equal to five times the diameter d1 of the uncoated tension members and minimal d1 + 1.5 mm.
  • the back layer has a profiled surface on its side facing away from the traction disk. This profiling is used to better guide the traction device, if this must be performed over the spine around pulleys.
  • each traction device on at least four tension members is improved, so that a safe entry into the engagement zone of the traction sheave is ensured.
  • steel cables are preferably used as tension members.
  • the ropes of a traction means are arranged alternately between S and Z impact. The risk of load-dependent twists is thereby minimized.
  • An Gradieremaschine the number of ropes used in a traction device improves this effect.
  • Steel combines high tensile strength and fatigue strength with good adhesion to elastomers.
  • the diameter of the individual ropes is between 1.5 mm and 8 mm, preferably between 1.8 and 5.5 mm, particularly preferably between 2 and 4 mm. In this diameter range, a particularly good ratio of minimum diameter of the traction sheave and high load capacity is given.
  • the side of the traction mechanism facing away from the traction sheave has a cover coating.
  • the cover coating is formed from a flat textile, for example a fabric. With such a coating, both the friction and the wear resistance of the traction device can be improved.
  • the ratio of the second diameter of the sheathed tension member to the first diameter of the tension member is preferably between 1.2 and 1.6.
  • a cross section is shown by a traction mechanism, which is particularly suitable for use in an elevator system.
  • the traction mechanism drive has a traction means 1 and a traction sheave 9, through which the traction means 1 can be driven.
  • the traction means 1 has six tension members 2, which are encased by elastomeric material 11 to sheathed tension members 3.
  • the tension members 2 are ropes made of steel.
  • the sheathed tensile carriers 3 are - viewed in cross-section of the traction means - arranged in a plane next to each other in such spaced relation to each other, so that between two immediately adjacent sheathed tension members 3, a free space 6 is formed.
  • the sheathed tensile carrier 3 are connected by a back layer 4 back to each other.
  • the space 6 begins on the side facing away from the backsheet 4 and extends over one Level 12, which is formed by the centers 5 of the tension members 2 out.
  • the diameter (d2) of the sheathed tension member 3 is 3.5 mm and the diameter (d1) uncoated, bare tension member 2 is 2.5 mm.
  • the ratio of the second diameter (d2) of the sheathed tension member 3 to the first diameter (d1) of the tension member 2 is 1.4.
  • the sheathing of the tension member 2 with elastomeric material is comparatively thin at 0.5 mm: this has the advantage that the sheathing material is only slightly stressed in shear and the elastomer material is not significantly fatigued. In addition, the forces of the traction disc can be transferred very well.
  • the sheath 3 of the tension members 2 has an outer contour facing the traction sheave 9, the cross section of which corresponds to a part-circular shape and has a radius R1 of 1.75 mm.
  • the traction sheave 9 facing broad side of the traction means consisting of part circular forms, wherein the forming the partial circular sheathed steel cables engage in corresponding grooves 10 in the traction sheave 9.
  • the grooves 10 have a contour which corresponds to a circular circle shape with the radius R2 of 1.85 mm. It is particularly important that the tension members 2 engage the grooves 10 of the traction sheave 9 without and in spite of their elastomer sheathing, at least 5%.
  • the sheathing of the reinforcement and the back layer 4 are made of PU.
  • the back layer 4 has a thickness c, where c is at its thinnest point ⁇ 1 mm.
  • the tension members 2 of the traction means 1 are spaced apart from one another such that the distance t of the centers 5 of the tension members 2 is 4.5 mm.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Claims (17)

  1. Moyen de traction (1), en particulier pour une installation d'ascenseur,
    comprenant des supports de traction (2) qui sont enveloppés de matériau élastomère pour former des supports de traction gainés (3), les supports de traction gainés (3) étant disposés à distance les uns des autres dans la section transversale du moyen de traction les uns à côté des autres dans un plan de telle sorte qu'entre deux supports de traction adjacents (3) soit prévu un espace libre (6), les supports de traction gainés (3) étant connectés les uns aux autres vers l'arrière par une couche arrière (4), caractérisé en ce que l'espace libre (6) s'étend depuis le côté opposé à la couche arrière (4) au moins jusqu'au centre (5) du support de traction, le rapport du deuxième diamètre (d2) du support de traction gainé (3) au premier diamètre (d1) du support de traction (2) étant compris entre 1,05 et 2,25, de préférence entre 1,2 et 1,6 et le gainage (3) des supports de traction (2) présentant un contour extérieur tourné vers la poulie de traction (10), dont la section transversale correspond à une forme de cercle partiel.
  2. Moyen de traction selon la revendication 1, caractérisé en ce que l'épaisseur du gainage (3) des supports de traction (2) est comprise dans une plage de 0,2 à 2 mm, de préférence entre 0,5 et 1 mm.
  3. Moyen de traction selon la revendication 1 ou 2, caractérisé en ce que le gainage (3) est réalisé en un élastomère qui est différent de l'élastomère de la couche arrière (4).
  4. Moyen de traction selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que l'élastomère est de préférence un polyuréthanne.
  5. Moyen de traction selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que le rapport du diamètre (d2) du support de traction gainé (3) à l'épaisseur totale (D) du moyen de traction (1) est D ≤ 1.
  6. Moyen de traction selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que la couche arrière (4) présente une épaisseur (c), c étant, à son endroit le plus étroit, inférieur ou égal à la moitié de l'épaisseur D du câble composite (1).
  7. Moyen de traction selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que les supports de traction (2) du moyen de traction (1) sont espacés les uns des autres de telle sorte que la distance (t) des centres (5) des supports de traction (2) soit inférieure ou égale à cinq fois le diamètre (d1) des supports de traction (2) et soit égale au minimum à d1 + 1,5 mm.
  8. Moyen de traction selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que la couche arrière (4) présente une surface profilée.
  9. Moyen de traction selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que chaque moyen de traction (1) présente au moins quatre supports de traction (2).
  10. Moyen de traction selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que les supports de traction (2) sont des câbles, de préférence en acier.
  11. Moyen de traction selon la revendication 10, caractérisé en ce que les câbles (2) présentent en alternance un pas de câblage à gauche (S) et à droite (Z).
  12. Moyen de traction selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que le nombre des supports de traction (2) par moyen de traction (1) est pair.
  13. Moyen de traction selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que le diamètre d'un support de traction (2) est compris entre 1,5 mm et 8 mm.
  14. Moyen de traction selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que la surface de la couche arrière présente un revêtement de recouvrement.
  15. Moyen de traction selon la revendication 14, caractérisé en ce que le revêtement de recouvrement se compose d'un textile plat, par exemple d'un tissu.
  16. Entraînement à moyen de traction, notamment pour une installation d'ascenseur, constitué d'un moyen de traction (1) selon l'une quelconque ou plusieurs des revendications précédentes, et d'au moins une poulie de traction qui permet d'entraîner le moyen de traction, un support de traction gainé (3) venant à chaque fois en prise dans une gorge correspondante (10) de la poulie de traction (9), la couche arrière élastomère (4) étant disposée du côté du support de traction (2) qui est opposé au côté venant en prise dans les gorges (10) de la poulie de traction (9), et au moins un support de traction venant en prise sur au moins 5 % de son diamètre (d1) dans la gorge correspondante (10) de la poulie de traction (9).
  17. Installation d'ascenseur, caractérisée en ce qu'elle présente un entraînement à moyen de traction selon la revendication 16.
EP09783579A 2008-11-10 2009-09-30 Moyen de traction, transmission par lien souple pourvue dudit moyen de traction et ascenseur associé Active EP2356055B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008037536A DE102008037536A1 (de) 2008-11-10 2008-11-10 Zugmittel, Zugmitteltrieb mit diesem Zugmittel und Aufzugsanlage
PCT/EP2009/062658 WO2010052075A1 (fr) 2008-11-10 2009-09-30 Moyen de traction, transmission par lien souple pourvue dudit moyen de traction et ascenseur associé

Publications (2)

Publication Number Publication Date
EP2356055A1 EP2356055A1 (fr) 2011-08-17
EP2356055B1 true EP2356055B1 (fr) 2013-03-06

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ID=41269520

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09783579A Active EP2356055B1 (fr) 2008-11-10 2009-09-30 Moyen de traction, transmission par lien souple pourvue dudit moyen de traction et ascenseur associé

Country Status (6)

Country Link
US (1) US8789658B2 (fr)
EP (1) EP2356055B1 (fr)
CN (1) CN102209678A (fr)
DE (1) DE102008037536A1 (fr)
ES (1) ES2406066T3 (fr)
WO (1) WO2010052075A1 (fr)

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WO2010052075A1 (fr) 2010-05-14
CN102209678A (zh) 2011-10-05
DE102008037536A1 (de) 2010-05-12
ES2406066T3 (es) 2013-06-05
US20110226563A1 (en) 2011-09-22
EP2356055A1 (fr) 2011-08-17
US8789658B2 (en) 2014-07-29

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