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EP2346770A1 - Traction system for a lift - Google Patents

Traction system for a lift

Info

Publication number
EP2346770A1
EP2346770A1 EP09783462A EP09783462A EP2346770A1 EP 2346770 A1 EP2346770 A1 EP 2346770A1 EP 09783462 A EP09783462 A EP 09783462A EP 09783462 A EP09783462 A EP 09783462A EP 2346770 A1 EP2346770 A1 EP 2346770A1
Authority
EP
European Patent Office
Prior art keywords
traction
traction system
individual cables
diameter
individual
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.)
Granted
Application number
EP09783462A
Other languages
German (de)
French (fr)
Other versions
EP2346770B1 (en
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
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 EP2346770A1 publication Critical patent/EP2346770A1/en
Application granted granted Critical
Publication of EP2346770B1 publication Critical patent/EP2346770B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B15/00—Main component parts of mining-hoist winding devices
    • B66B15/02—Rope or cable carriers
    • B66B15/04—Friction sheaves; "Koepe" pulleys
    • 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
    • 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
    • Y10T24/3909—Plural-strand cord or rope

Definitions

  • the invention relates to a traction system, in particular for an elevator installation, wherein the traction system has at least the following constituent parts, namely at least one traction means and at least one traction sheave and an elevator installation.
  • Traction systems for elevator systems are known per se.
  • a pulling means ropes but also belts are used, being used as belt both flat belt and V-ribbed belt or toothed belt.
  • each individual rope is uniquely assigned its own rope groove on the traction sheave. 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 is increased accordingly.
  • the single rope is thus not only traction means for transmitting the tensile forces, but is also directly involved in the transmission of traction forces.
  • Traction disc is transferable to the ropes.
  • the belt technology is still the connecting elastomeric material between the actual tension members and the traction disc.
  • the tension elements are thus exclusively responsible for transmitting the tensile forces.
  • wider belts or belts of higher performance class with larger belt pitch and stronger tension elements can be used.
  • the belts are generally wider than they are high to ensure a stable belt run on the pulley.
  • EP 1 396 458 A2 describes an elevator device in which a flat belt of elastomeric material reinforced with reinforcements is used as the traction means.
  • EP 1 555 234 B1 shows an elevator installation with a V-ribbed belt.
  • Belts offer over the ropes the advantage that on the one hand the handling is easier, because not individual ropes must be placed on corresponding grooves of the traction sheave, and that also small traction sheave diameter can be used without problems, since the embedded tension members usually have relatively small diameter.
  • belts are virtually maintenance-free as traction means, since no lubrication is erfoderlich.
  • the transferable force is but in addition to the friction between the traction disc and
  • Elastomer also on the quality of the embedding of the tension members in the elastomer, d. h., Depending on the adhesion between elastomer and tensile and the shear strength of the elastomer dependent.
  • a traction means for an elevator system which is formed as a profiled flat belt, so that the friction surface between the traction disc and belt available surface is slightly larger.
  • the transferable force is thus slightly 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, so that the elastomeric material of the flat belt is relatively heavily subjected to shear.
  • the invention has for its object to provide a traction system of the type described, which is easy to handle, with high tensile forces are transferable and the traction means compared to the known belt technology allows a less broad-based drive unit.
  • the traction device of the traction system is designed as a composite rope, are sheathed in the parallel single ropes with a first diameter, each with an elastomer layer of a predetermined thickness to tensile carriers each having an overall diameter and the tension members by a one-sided elastomeric connector layer substantially are interconnected over their entire length, wherein the elastomeric connector layer is disposed on the side of the tension members which faces away from the groove engaging in the grooves of the traction sheave side, and the tensile carriers engage in corresponding grooves of the traction disc such that the immersion depth of the individual cables of the tension members in the grooves of the traction sheave is at least 25% of the diameter of the single ropes.
  • the composite rope is so easy to handle and is almost maintenance-free like a belt. Because of the directly into the grooves of the traction disc engaging traction carrier contacts at least the traction disc closest to the vertex of each tension member the traction sheave. The zone of power transmission between traction sheave and traction means is located directly in the engagement zone, whereby a high power transmission is given. Due to their small thickness, the shear strength of the sheath is of very little importance.
  • Thin ropes can be used so that small traction disc diameters and narrow traction discs are possible. For each compound rope only one connecting element for connection to the example to be lifted elements is necessary.
  • the thickness of the sheathing of the individual cables in the range of 0.2 - 2 mm.
  • the thickness of the sheathing of the individual ropes in the range of 0.5 - 1 mm.
  • the diameter of the individual ropes is between 1, 5mm and 8mm.
  • the diameter of the individual cables is between 1.8 and 5.5 mm.
  • the ratio of the diameter d of the individual cables to the thickness u of the sheathing d / u is greater than or equal to 3.
  • the thickness of the casing is so thin in relation to the diameter of the individual ropes that the properties of the casing play a particularly small role.
  • the sheath is formed of an elastomer which differs from the elastomer of the connector layer.
  • the elastomer or the 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 deviating from a partial circle shape.
  • the cross section of the outer contour is trapezoidal.
  • the cross section of the outer contour is square.
  • the cross section of the outer contour is conical.
  • 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 connector layer on its side facing away from the traction disc on a profiled surface.
  • This profiling is used to better guide the composite ropes when they must be performed over their back to pulleys.
  • each composite rope has at least four individual ropes.
  • the individual cables are arranged alternately between S and Z impact.
  • the number of individual ropes per compound rope is even.
  • the individual cables are made of steel.
  • Such an elevator system has the advantage that on the one hand the assembly is facilitated due to the good handling of the composite cables according to the invention, on the other hand, no wide-build traction drum is required.
  • the composite cable 1 shown in cross-section in FIG. 1 has four individual cables 2 with a diameter d, which are each sheathed with a sheath 3 with a thickness u of an elastomer to form tension members 4.
  • the tension members 4 are fixedly connected to one another with a connector layer 5, the connection being produced by vulcanization of the elastomeric jacket 3 to the connector layer 4 and the individual cables 2.
  • the composite rope 1 rests on a traction sheave 6, wherein the tension members 4 engage in grooves 7 of the traction sheave 6.
  • the connector layer 5 is arranged on the side of the tension members 4, which faces away from the traction sheave 6.
  • the tension members 4 engage in the grooves 7 of the traction sheave 6 in such a way that the individual cables 2 of the tension members 4 dip into the grooves 7 about 50% of their diameter.
  • 3 and 4 composite cables 1 are shown, the sheath 3 of the individual cables 2 have a deviating from the circular geometry. These Geometries improve the engagement of the composite ropes 1 in traction discs, not shown here, which have a different profile from the round shape.
  • correspondingly shaped composite cables 1 can also be used on traction discs of V-ribbed belts.
  • FIG. 5 shows a composite cable 8 which, on a back side remote from the traction sheave (not shown here), has a rib profile 9 consisting of spaced-apart longitudinal ribs 10. If required, the longitudinal ribs can engage corresponding deflection rollers (not shown here) and thus improve the guidance of the composite rope 8.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Ropes Or Cables (AREA)

Abstract

The invention relates to a traction system comprising a traction mechanism (1), especially for a lift, the traction mechanism (1) being drivable by a traction disk (6). The aim of the invention is to provide a traction system having a traction mechanism that is easy to handle, whereby high traction forces can be transferred, and the traction mechanism enables a narrower drive unit than known belt technology. To this end, the traction mechanism is embodied as a composite cable (1) in which parallel individual traction carriers (4) surrounded by an elastomer material are interconnected by an elastomer connector layer (5) on one side, and the traction carriers (4) engage in corresponding grooves (7) of the traction disk (6). The insertion depth of the individual cables (2) of the traction carriers (4) in the grooves of the traction disk (6) is at least 25 % of the diameter (d) of the individual cables (2).

Description

Beschreibung description
Traktionssystem für eine AufzugsanlageTraction system for an elevator installation
Die Erfindung betrifft ein Traktionssystem, insbesondere für eine Aufzugsanlage, wobei das Traktionssystem mindestens folgende Bestanddteile aufweist, nämlich mindestens ein Zugmittel und mindestens eine Traktionsscheibe sowie eine Aufzugsanlage.The invention relates to a traction system, in particular for an elevator installation, wherein the traction system has at least the following constituent parts, namely at least one traction means and at least one traction sheave and an elevator installation.
Traktionssysteme für Aufzugsanlagen sind an sich bekannt. Als Zugmittel werden häufig Seile, aber auch Riemen eingesetzt, wobei als Riemen sowohl Flachriemen als auch Keilrippenriemen oder auch Zahnriemen Verwendung finden.Traction systems for elevator systems are known per se. As a pulling means ropes, but also belts are used, being used as belt both flat belt and V-ribbed belt or toothed belt.
Bei Seilen als Zugmittel ist jedem einzelnen Seil eindeutig eine eigene Seilrille auf der Traktionsscheibe zugeordnet. Dabei taucht jedes Seil zumindest zum Teil seines Durchmessers in die dazugehörige Seilrille ein. Jedes einzelne Seil ist ein eigenständiges Zugelement und kann auch einzeln betrieben werden. Für höhere Leistungen können entweder mehrere Seile parallel eingesetzt werden, oder der Seildurchmesser wird entsprechend erhöht. Das Einzelseil ist somit nicht nur Zugmittel zur Übertragung der Zugkräfte, sondern ist auch direkt an der Übertragung der Traktionskräfte beteiligt.In the case of ropes as traction means, each individual rope is uniquely assigned its own rope groove on the traction sheave. 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 is increased accordingly. The single rope is thus not only traction means for transmitting the tensile forces, but is also directly involved in the transmission of traction forces.
Seile haben gegenüber der Riementechnik den Vorteil, dass die Kraft direkt von derRopes have the advantage over the belt technology that the power directly from the
Traktionsscheibe auf die Seile übertragbar ist. Bei der Riementechnik liegt zwischen den eigentlichen Zugträgern und der Traktionsscheibe noch das verbindende Elastomermaterial.Traction disc is transferable to the ropes. In the belt technology is still the connecting elastomeric material between the actual tension members and the traction disc.
Bei der Verwendung von Riemen sind immer mehrere nebeneinander liegende Seile als Zugelemente in einem gemeinsamen Riemenkörper eingebettet. Die Zugelemente sind dabei vollständig mit dem Grundmaterial des Riemenkörpers umhüllt und die Ebene der Zugelemente liegt oberhalb der Kontaktebene, die der Riemen mit der entsprechenden Riemenscheibe bildet, wobei beim Zahnriemen die Riemenverzahnung, bei Keilrippen die Keilebene und bei Flachriemen direkt die flache Riemenoberfläche als Kontaktebene betrachtet werden kann.When using belts more adjacent ropes are always embedded as tension elements in a common belt body. The tension elements are thereby completely enveloped with the base material of the belt body and the plane of the tension elements is above the contact plane, which forms the belt with the corresponding pulley, wherein the timing belt in the belt, the wedge ribs, the wedging plane and flat belt directly the flat belt surface can be considered as a contact plane.
Die Zugelemente sind somit ausschließlich zur Übertragung der Zugkräfte zuständig. Für höhere Leistungen können breitere Riemen oder Riemen einer höheren Leistungsklasse mit größerer Riementeilung und stärkeren Zugelementen eingesetzt werden.The tension elements are thus exclusively responsible for transmitting the tensile forces. For higher performance wider belts or belts of higher performance class with larger belt pitch and stronger tension elements can be used.
Die Riemen sind grundsätzlich deutlich breiter als hoch, um einen stabilen Riemenlauf auf der Scheibe zu gewährleisten.The belts are generally wider than they are high to ensure a stable belt run on the pulley.
Die EP 1 396 458 A2 beschreibt eine Aufzugseinrichtung, bei der als Zugmittel ein mit Festigkeitsträgern verstärkter Flachriemen aus elastomeren Material verwendet wird. Die EP 1 555 234 Bl zeigt eine Aufzugsanlage mit einem Keilrippenriemen.EP 1 396 458 A2 describes an elevator device in which a flat belt of elastomeric material reinforced with reinforcements is used as the traction means. EP 1 555 234 B1 shows an elevator installation with a V-ribbed belt.
Riemen bieten gegenüber den Seilen den Vorteil, dass einerseits die Handhabung einfacher ist, da nicht einzelne Seile auf korrespondierende Nuten der Traktionsscheibe aufgelegt werden müssen, und dass problemlos auch kleine Traktionsscheibendurchmesser einsetzbar sind, da die eingebetteten Zugträger meist relativ kleine Durchmesser aufweisen. Außerdem sind Riemen als Zugmittel nahezu wartungsfrei, da keine Schmierung erfoderlich ist.Belts offer over the ropes the advantage that on the one hand the handling is easier, because not individual ropes must be placed on corresponding grooves of the traction sheave, and that also small traction sheave diameter can be used without problems, since the embedded tension members usually have relatively small diameter. In addition, belts are virtually maintenance-free as traction means, since no lubrication is erfoderlich.
Die übertragbare Kraft ist aber neben der Reibung zwischen Traktionsscheibe undThe transferable force is but in addition to the friction between the traction disc and
Elastomer auch von der Qualität der Einbettung der Zugträger im Elastomer, d. h., von der Haftfähigkeit zwischen Elastomer und Zugträger sowie von der Scherfestigkeit des Elastomers abhängig.Elastomer also on the quality of the embedding of the tension members in the elastomer, d. h., Depending on the adhesion between elastomer and tensile and the shear strength of the elastomer dependent.
Außerdem müssen beispielsweise bei Aufzugsanlagen aus Sicherheitsgründen immer mindestens zwei, in der Regel drei bis fünf Riemen parallel eingesetzt werden. Dadurch, dass die Riemen eine Vielzahl von dünnen Einzelseilen enthalten, wird der Riemen im Vergleich zu einem gleich starken Seil relativ breit. Werden jetzt mehrere Riemen parallel eingesetzt, sind relativ breite Traktionsscheiben und Umlenkscheiben erforderlich.In addition, for example, in elevator systems for safety reasons always at least two, usually three to five belts are used in parallel. Thereby, That the straps contain a multitude of thin individual ropes, the belt is relatively wide compared to a rope of equal strength. If now several belts are used in parallel, relatively wide traction discs and pulleys are required.
In der US 6 739 433 ist ein Zugmittel für eine Aufzugsanlage offenbart, das als profilierter Flachriemen ausgebildet ist, so dass die zur Reibung zwischen Traktionsscheibe und Riemen zur Verfügung stehende Fläche etwas größer ist. Die übertragbare Kraft ist damit etwas höher als bei einem nicht profilierten Flachriemen, jedoch ist auch hier die Zone der Kraftübertragung zwischen Traktionsscheibe und Zugmittel noch deutlich von den Zugträgern beabstandet, so dass das Elastomermaterial des Flachriemens relativ stark auf Scherung beansprucht ist.In US 6,739,433 a traction means for an elevator system is disclosed, which is formed as a profiled flat belt, so that the friction surface between the traction disc and belt available surface is slightly larger. The transferable force is thus slightly 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, so that the elastomeric material of the flat belt is relatively heavily subjected to shear.
Der Erfindung liegt die Aufgabe zugrunde, ein Traktionssystem der eingangs geschilderten Art zu schaffen, das einfach zu handhaben ist, wobei hohe Zugkräfte übertragbar sind und das Zugmittel gegenüber der bekannten Riementechnik eine weniger breit bauende Antriebseinheit ermöglicht.The invention has for its object to provide a traction system of the type described, which is easy to handle, with high tensile forces are transferable and the traction means compared to the known belt technology allows a less broad-based drive unit.
Diese Aufgabe wird dadurch gelöst, dass das Zugmittel des Traktionssystems als Verbundseil ausgebildet ist, bei dem parallel liegende Einzelseile mit einem ersten Durchmesser mit je einer Elastomerschicht einer vorbestimmten Dicke zu Zugträgern mit je einem Gesamtdurchmesser ummantelt sind und die Zugträger durch eine einseitige elastomere Verbinderschicht im wesentlichen über ihre gesamte Länge miteinander verbunden sind, wobei die elastomere Verbinderschicht auf der Seite der Zugträger angeordnet ist, die der in die Nuten der Traktionsscheibe eingreifenden Seite abgewandt ist, und die Zugträger derart in korrespondierende Nuten der Traktionsscheibe eingreifen, dass die Eintauchtiefe der Einzelseile der Zugträger in die Nuten der Traktionsscheibe mindestens 25% des Durchmessers der Einzelseile beträgt.This object is achieved in that the traction device of the traction system is designed as a composite rope, are sheathed in the parallel single ropes with a first diameter, each with an elastomer layer of a predetermined thickness to tensile carriers each having an overall diameter and the tension members by a one-sided elastomeric connector layer substantially are interconnected over their entire length, wherein the elastomeric connector layer is disposed on the side of the tension members which faces away from the groove engaging in the grooves of the traction sheave side, and the tensile carriers engage in corresponding grooves of the traction disc such that the immersion depth of the individual cables of the tension members in the grooves of the traction sheave is at least 25% of the diameter of the single ropes.
Durch diese Anordnung lassen sich die Vorteile der Riementechnik mit denen der Seiltechnik verbinden. Das Verbundseil ist so einfach zu handhaben und ist annähernd wartungsfrei wie ein Riemen. Aufgrund der direkt in die Nuten der Traktionsscheibe eingreifenden Zugträger kontaktiert mindestens der der Traktionsscheibe am nächsten liegende Scheitelpunkt jeden Zugträgers die Traktionsscheibe. Die Zone der Kraftübertragung zwischen Traktionsscheibe und Zugmittel liegt direkt in der Eingriffszone, wodurch eine hohe Kraftübertragung gegeben ist. Durch ihre geringe Dicke ist die Scherfestigkeit der Ummantelung nur von sehr geringer Bedeutung.By this arrangement, the advantages of the belt technology can be combined with those of the cable technology. The composite rope is so easy to handle and is almost maintenance-free like a belt. Because of the directly into the grooves of the traction disc engaging traction carrier contacts at least the traction disc closest to the vertex of each tension member the traction sheave. The zone of power transmission between traction sheave and traction means is located directly in the engagement zone, whereby a high power transmission is given. Due to their small thickness, the shear strength of the sheath is of very little importance.
Es lassen sich dünne Seile verwenden, so dass geringe Traktionsscheibendurchmesser und schmale Traktionsscheiben möglich sind. Für jedes Verbundseil ist nur je ein Verbindungselement zur Anbindung an die beispielsweise zu hebenden Elemente notwendig.Thin ropes can be used so that small traction disc diameters and narrow traction discs are possible. For each compound rope only one connecting element for connection to the example to be lifted elements is necessary.
In einer Weiterbildung der Erfindung liegt die Dicke der Ummantelung der Einzelseile im Bereich von 0,2 - 2 mm.In a further development of the invention, the thickness of the sheathing of the individual cables in the range of 0.2 - 2 mm.
In einer bevorzugten Weiterbildung der Erfindung liegt die Dicke der Ummantelung der Einzelseile im Bereich von 0,5 - 1 mm.In a preferred embodiment of the invention, the thickness of the sheathing of the individual ropes in the range of 0.5 - 1 mm.
Bei diesen geringen Dicken der Ummantelung ist diese besonders gering auf Scherung beansprucht und die übertragbare Zugkraft dementsprechend hoch.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.
In einer Weiterbildung der Erfindung liegt der Durchmesser der Einzelseile zwischen 1 ,5mm und 8mm.In one embodiment of the invention, the diameter of the individual ropes is between 1, 5mm and 8mm.
In einer Weiterbildung der Erfindung liegt der Durchmesser der Einzelseile zwischen 1,8 und 5,5mm.In a further development of the invention, the diameter of the individual cables is between 1.8 and 5.5 mm.
In diesem Durchmesserbereich ist ein besonders gutes Verhältnis aus minimalem Durchmesser der Traktionsscheibe und hoher Traglast gegeben.In this diameter range, a particularly good ratio of minimum diameter of the traction sheave and high load capacity is given.
In einer Weiterbildung der Erfindung ist das Verhältnis aus Durchmesser d der Einzelseile zur Dicke u der Ummantelung d/u größer oder gleich 3. Die Dicke der Ummantelung ist dabei im Verhältnis zum Durchmesser der Einzelseile derart dünn, dass die Eigenschaften der Ummantelung eine besonders geringe Rolle spielen.In a development of the invention, the ratio of the diameter d of the individual cables to the thickness u of the sheathing d / u is greater than or equal to 3. The thickness of the casing is so thin in relation to the diameter of the individual ropes that the properties of the casing play a particularly small role.
In einer Weiterbildung der Erfindung ist die Ummantelung aus einem Elastomer ausgebildet, das sich von dem Elastomer der Verbinderschicht unterscheidet.In a further development of the invention, the sheath is formed of an elastomer which differs from the elastomer of the connector layer.
Durch die Verwendung verschiedenartiger Elastomere lässt sich eine besonders große Vielfalt an Materialkombinationen einsetzen, so dass sich das Verbundseil auf eine große Anzahl von Einsatzfällen individuell einstellen lässt.By using a variety of elastomers, a particularly wide variety of material combinations can be used, so that the composite rope can be adjusted individually to a large number of applications.
In einer Weiterbildung der Erfindung ist das Elastomer oder sind die Elastomere vorzugsweise ein Polyurethan oder Polyurethane.In one development of the invention, the elastomer or the elastomers is preferably a polyurethane or polyurethane.
Polyurethan weist sowohl gute Reib- als auch gute Hafteigenschaften auf und ist relativ unempfindlich gegen Scherung.Polyurethane has both good friction and good adhesion properties and is relatively insensitive to shear.
In einer Weiterbildung der Erfindung weist die Ummantelung der Einzelseile eine der Traktionsscheibe zugewandte Außenkontur auf, deren Querschnitt von einer Teilkreisform abweichend ausgebildet ist.In a further development of the invention, the sheathing of the individual cables has an outer contour facing the traction sheave whose cross-section is deviating from a partial circle shape.
In einer Weiterbildung der Erfindung ist der Querschnitt der Außenkontur trapezförmig ausgebildet.In a further development of the invention, the cross section of the outer contour is trapezoidal.
In einer Weiterbildung der Erfindung ist der Querschnitt der Außenkontur quadratisch ausgebildet.In a further development of the invention, the cross section of the outer contour is square.
In einer Weiterbildung der Erfindung ist der Querschnitt der Außenkontur konisch ausgebildet. Die Ausgestaltung der Querschnitte der Ummantelung in verschiedene Geometrien hat den Vorteil, dass das Verbundseil damit einer Vielzahl von Traktionsscheibenprofilen anpassbar ist.In a development of the invention, the cross section of the outer contour is conical. 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.
In einer weiteren Ausbildung der Erfindung weist die Verbinderschicht auf ihrer der Traktionsscheibe abgewandten Seite eine profilierte Oberfläche auf.In a further embodiment of the invention, the connector layer on its side facing away from the traction disc on a profiled surface.
Diese Profilierung dient zur besseren Führung der Verbundseile, wenn diese über ihren Rücken um Umlenkrollen geführt werden müssen.This profiling is used to better guide the composite ropes when they must be performed over their back to pulleys.
In einer weiteren Ausbildung der Erfindung weist jedes Verbundseil mindestens vier Einzelseile auf.In a further embodiment of the invention, each composite rope has at least four individual ropes.
Dadurch ist die Sicherheit gegen Verdrehungen der Verbundseile verbessert, so dass ein sicherer Einlauf in die Eingriffszone der Traktionsscheibe gewährleistet ist.As a result, the security against twisting of the composite cables is improved, so that a safe enema is ensured in the engagement zone of the traction sheave.
In einer Weiterbildung der Erfindung sind die Einzelseile im Wechsel zwischen S- und Z- Schlag angeordnet.In a further development of the invention, the individual cables are arranged alternately between S and Z impact.
In einer weiteren Ausbildung der Erfindung ist die Anzahl der Einzelseile pro Verbundseil gradzahlig.In a further embodiment of the invention, the number of individual ropes per compound rope is even.
Durch die Verwendung von Seilen abwechselnd in Z- und in S-Schlag ist die Gefahr von lastabhängigen Verdrehungen besonders gering. Die Gradzahligkeit verbessert diesen Effekt.The use of ropes alternately in Z and S blows, the risk of load-dependent twists is particularly low. The grade number enhances this effect.
In einer weiteren Ausbildung der Erfindung bestehen die Einzelseile aus Stahl.In a further embodiment of the invention, the individual cables are made of steel.
Stahl vereint eine hohe Zugfestigkeit und Biegewechselfestigkeit mit einer guten Haftfähigkeit an Elastomeren. Die Aufgabe wird weiter dadurch gelöst, dass die Aufzugsanlage ein Traktionssystem nach mindestens einem der Ansprüche 1 bis 17 aufweist.Steel combines high tensile strength and fatigue strength with good adhesion to elastomers. The object is further achieved in that the elevator installation has a traction system according to at least one of claims 1 to 17.
Eine derartige Aufzugsanlage hat den Vorteil, dass einerseits die Montage aufgrund der guten Handhabbarkeit der erfindungsgemäßen Verbundseile erleichtert ist, andererseits auch keine breit bauende Zugtrommel erforderlich ist.Such an elevator system has the advantage that on the one hand the assembly is facilitated due to the good handling of the composite cables according to the invention, on the other hand, no wide-build traction drum is required.
Anhand der Zeichnung wird nachstehend ein Beispiel der Erfindung näher erläutert. Es zeigt:With reference to the drawing, an example of the invention will be explained in more detail below. It shows:
Fig. 1 einen Querschnitt durch einen erfindungsgemäßes Verbundseil des1 shows a cross section through an inventive composite rope of
Traktionssystems , Figuren 2-4 Verbundseile mit unterschiedlicher Querschnittsform der Ummantelung derTraction system, Figures 2-4 Compound cables with different cross-sectional shape of the sheath of
Einzelseile und Fig. 5 ein Verbundseil mit auf dem Rücken angeordneten RippenprofilSingle ropes and Fig. 5 a composite rope with arranged on the back rib profile
Das in Fig. 1 im Querschnitt gezeigte Verbundseil 1 weist vier Einzelseile 2 mit einem Durchmesser d auf, die jeweils mit einer Ummantelung 3 mit einer Dicke u aus einem Elastomer zu Zugträgern 4 ummantelt sind.The composite cable 1 shown in cross-section in FIG. 1 has four individual cables 2 with a diameter d, which are each sheathed with a sheath 3 with a thickness u of an elastomer to form tension members 4.
Die Zugträger 4 sind einseitig mit einer Verbinderschicht 5 untereinander fest verbunden, wobei die Verbindung durch Zusammenvulkanisieren der elastomeren Ummantelung 3 mit der Verbinderschicht 4 und den Einzelseilen 2 erzeugt ist. Das Verbundseil 1 liegt auf einer Traktionsscheibe 6 auf, wobei die Zugträger 4 in Nuten 7 der Traktionsscheibe 6 eingreifen. Die Verbinderschicht 5 ist auf der Seite der Zugträger 4 angeordnet, die der Traktionsscheibe 6 abgewandt ist.The tension members 4 are fixedly connected to one another with a connector layer 5, the connection being produced by vulcanization of the elastomeric jacket 3 to the connector layer 4 and the individual cables 2. The composite rope 1 rests on a traction sheave 6, wherein the tension members 4 engage in grooves 7 of the traction sheave 6. The connector layer 5 is arranged on the side of the tension members 4, which faces away from the traction sheave 6.
Die Zugträger 4 greifen derart in die Nuten 7 der Traktionsscheibe 6 ein, dass die Einzelseile 2 der Zugträger 4 etwa zu 50% ihres Durchmessers in die Nuten 7 eintauchen. In den Figuren 2, 3 und 4 sind Verbundseile 1 dargestellt, deren Ummantelung 3 der Einzelseile 2 eine von der Kreisform abweichende Geometrie aufweisen. Diese Geometrien verbessern den Eingriff der Verbundseile 1 in hier nicht gezeigte Traktionsscheiben, die ein von der runden Form abweichendes Profil aufweisen. So können entsprechend gestalteten Verbundseile 1 ggfs. auch auf Traktionsscheiben von Keilrippenriemen eingesetzt werden.The tension members 4 engage in the grooves 7 of the traction sheave 6 in such a way that the individual cables 2 of the tension members 4 dip into the grooves 7 about 50% of their diameter. In the figures 2, 3 and 4 composite cables 1 are shown, the sheath 3 of the individual cables 2 have a deviating from the circular geometry. These Geometries improve the engagement of the composite ropes 1 in traction discs, not shown here, which have a different profile from the round shape. For example, correspondingly shaped composite cables 1 can also be used on traction discs of V-ribbed belts.
In Fig. 5 ist ein Verbundseil 8 dargestellt, welches auf einer hier nicht gezeigten Traktionsscheibe abgewandten Rückenseite ein Rippenprofil 9 aus voneinander beabstandeten Längsrippen 10 aufweist. Die Längsrippen können bei Bedarf in entsprechende hier nicht gezeigte Umlenkrollen eingreifen und verbessern so die Führung des Verbundseils 8. FIG. 5 shows a composite cable 8 which, on a back side remote from the traction sheave (not shown here), has a rib profile 9 consisting of spaced-apart longitudinal ribs 10. If required, the longitudinal ribs can engage corresponding deflection rollers (not shown here) and thus improve the guidance of the composite rope 8.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
(Teil der Beschreibung)(Part of the description)
1 Verbundseil 2 Einzelseile des Verbundseils 11 composite rope 2 individual ropes of the composite rope 1
3 Ummantelung der Einzelseile 23 sheathing of the single ropes 2
4 Zugträger4 tension members
5 Verbinderschicht5 connector layer
6 Traktionsscheibe 7 Nuten der Traktionsscheibe6 Traction disc 7 grooves of the traction disc
8 Verbundseil mit Rückenprofϊl8 composite rope with back profile
9 Rippenprofil des Verbundseils 89 Rib profile of the composite rope 8
10 Längsrippen des Verbundseils 8 10 longitudinal ribs of the composite rope. 8

Claims

Patentansprüche claims
1. Traktionssystem, insbesondere für eine Aufzugsanlage, wobei das Traktionssystem mindestens folgende Bestanddteile aufweist, nämlich mindestens ein Zugmittel (1) und mindestens eine Traktionsscheibe (6), dadurch gekennzeichnet, dass das1. Traction system, in particular for an elevator installation, wherein the traction system has at least the following constituent parts, namely at least one traction means (1) and at least one traction sheave (6), characterized in that the
Zugmittel des Traktionssystems als Verbundseil (1) ausgebildet ist, bei dem parallel liegende Einzelseile (2) mit einem ersten Durchmesser mit je einer Elastomerschicht (3) einer vorbestimmten Dicke zu Zugträgern (4) mit je einem Gesamtdurchmesser ummantelt sind und die Zugträger (4) durch eine einseitige elastomere Verbinderschicht (5) im wesentlichen über ihre gesamte Länge miteinander verbunden sind, wobei die elastomere Verbinderschicht (5) auf der Seite der Zugträger (4) angeordnet ist, die der in die Nuten (7) der Traktionsscheibe (6) eingreifenden Seite abgewandt ist und die Zugträger (4) derart in korrespondierende Nuten (7) der Traktionsscheibe (6) eingreifen, dass die Eintauchtiefe der Einzelseile (2) der Zugträger (4) in die Nuten (7) der Traktionsscheibe (6) mindestens 25% desTraction system of the traction system is designed as a composite rope (1), in which lying parallel single ropes (2) with a first diameter, each having an elastomer layer (3) of a predetermined thickness to tension members (4) are sheathed with a total diameter and the tension members (4). are interconnected by a one-sided elastomeric connector layer (5) over substantially their entire length, the elastomeric connector layer (5) being disposed on the side of the tension members (4) that engage the grooves (7) of the traction sheave (6) Side facing away and the tension members (4) engage in corresponding grooves (7) of the traction sheave (6) that the immersion depth of the individual cables (2) of the tension members (4) in the grooves (7) of the traction sheave (6) at least 25% of
Durchmessers (d) der Einzelseile (2) beträgt.Diameter (d) of the individual cables (2) is.
2. Traktionssystem nach Anspruch 1, dadurch gekennzeichnet, dass die Dicke der Ummantelung (3) der Einzelseile (2) im Bereich von 0,2 - 2 mm liegt.2. traction system according to claim 1, characterized in that the thickness of the sheath (3) of the individual cables (2) in the range of 0.2 - 2 mm.
3. Traktionssystem nach Anspruch 2, dadurch gekennzeichnet, dass die Dicke der Ummantelung (3) der Einzelseile (2) im Bereich von 0,5 - 1 mm liegt.3. traction system according to claim 2, characterized in that the thickness of the sheath (3) of the individual cables (2) in the range of 0.5 - 1 mm.
4. Traktionssystem nach mindestens einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Durchmesser der Einzelseile (2) zwischen 1,5mm und 8mm liegt4. traction system according to at least one of the preceding claims, characterized in that the diameter of the individual cables (2) is between 1.5mm and 8mm
5. Traktionssystem nach mindestens einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Durchmesser der Einzelseile (2) zwischen 1,8mm und 5,5mm liegt. 5. traction system according to at least one of the preceding claims, characterized in that the diameter of the individual cables (2) is between 1.8mm and 5.5mm.
6. Traktionssystem nach mindestens einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Verhältnis aus Durchmesser d der Einzelseile (2) und Dicke u der Ummantelung (3) d/u größer oder gleich 3 ist.6. traction system according to at least one of the preceding claims, characterized in that the ratio of diameter d of the individual cables (2) and thickness u of the sheath (3) d / u is greater than or equal to 3.
7. Traktionssystem nach mindestens einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Ummantelung (3) aus einem Elastomer ausgebildet ist, das sich von dem Elastomer der Verbinderschicht (5) unterscheidet.Traction system according to at least one of the preceding claims, characterized in that the sheath (3) is formed of an elastomer which differs from the elastomer of the connector layer (5).
8. Traktionssystem nach mindestens einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Elastomer (3, 5) vorzugsweise ein Polyurethan ist oder die8. traction system according to at least one of the preceding claims, characterized in that the elastomer (3, 5) is preferably a polyurethane or the
Elastomere (3, 5) vorzugsweise Polyurethane sind.Elastomers (3, 5) are preferably polyurethanes.
9. Traktionssystem nach mindestens einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Ummantelung (3) der Einzelseile (2) eine der Traktionsscheibe (6) zugewandte Außenkontur (9) aufweist, deren Querschnitt von einer Teilkreisform abweichend ausgebildet ist.9. traction system according to at least one of the preceding claims, characterized in that the sheath (3) of the individual cables (2) has a traction disc (6) facing outer contour (9) whose cross-section is deviating from a pitch circle shape.
10. Traktionssystem nach Anspruch 9, dadurch gekennzeichnet, dass der Querschnitt der Außenkontur (9) trapezförmig ausgebildet ist.10. traction system according to claim 9, characterized in that the cross section of the outer contour (9) is trapezoidal.
11. Traktionssystem nach Anspruch 9, dadurch gekennzeichnet, dass der Querschnitt der Außenkontur (9) quadratisch ausgebildet ist.11. traction system according to claim 9, characterized in that the cross section of the outer contour (9) is square.
12. Traktionssystem nach Anspruch 9, dadurch gekennzeichnet, dass der Querschnitt der Außenkontur (9) konisch ausgebildet ist.12. traction system according to claim 9, characterized in that the cross section of the outer contour (9) is conical.
13. Traktionssystem nach mindestens einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Verbinderschicht (5) auf ihrer der Traktionsscheibe (6) abgewandten Seite eine profilierte Oberfläche (9) aufweist. 13. Traction system according to at least one of the preceding claims, characterized in that the connector layer (5) on its side facing away from the traction sheave (6) has a profiled surface (9).
14. Traktionssystem nach mindestens einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass jedes Verbundseil (1) mindestens vier Einzelseile (2) aufweist.14. Traction system according to at least one of the preceding claims, characterized in that each composite rope (1) has at least four individual ropes (2).
15. Traktionssystem nach mindestens einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Einzelseile (2) im Wechsel zwischen S- und Z- Schlag angeordnet sind.15. traction system according to at least one of the preceding claims, characterized in that the individual cables (2) are arranged in alternation between S and Z impact.
16. Traktionssystem nach mindestens einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Anzahl der Einzelseile (2) pro Verbundseil (1) gradzahlig ist.16. traction system according to at least one of the preceding claims, characterized in that the number of individual ropes (2) per compound rope (1) is even.
17. Traktionssystem nach mindestens einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Einzelseile (2) aus Stahl bestehen.17. traction system according to at least one of the preceding claims, characterized in that the individual cables (2) consist of steel.
18. Aufzugsanlage , dadurch gekennzeichnet, dass die Aufzugsanlage ein Traktionssystem nach einem der vorstehenden Ansprüche aufweist. 18. Elevator installation, characterized in that the elevator installation has a traction system according to one of the preceding claims.
EP09783462.6A 2008-11-10 2009-09-28 Traction system for a lift Active EP2346770B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008037538A DE102008037538A1 (en) 2008-11-10 2008-11-10 Traction system for an elevator installation
PCT/EP2009/062503 WO2010052067A1 (en) 2008-11-10 2009-09-28 Traction system for a lift

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EP2346770A1 true EP2346770A1 (en) 2011-07-27
EP2346770B1 EP2346770B1 (en) 2014-05-21

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CN (1) CN102209679B (en)
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US20110226562A1 (en) 2011-09-22
CN102209679A (en) 2011-10-05
WO2010052067A1 (en) 2010-05-14
CN102209679B (en) 2015-06-17
US8794387B2 (en) 2014-08-05
DE102008037538A1 (en) 2010-05-12
EP2346770B1 (en) 2014-05-21

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