EP1498542A1 - Longitudinal running element, especially for a lift or crane or the like - Google Patents
Longitudinal running element, especially for a lift or crane or the like Download PDFInfo
- Publication number
- EP1498542A1 EP1498542A1 EP03405545A EP03405545A EP1498542A1 EP 1498542 A1 EP1498542 A1 EP 1498542A1 EP 03405545 A EP03405545 A EP 03405545A EP 03405545 A EP03405545 A EP 03405545A EP 1498542 A1 EP1498542 A1 EP 1498542A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- longitudinal element
- element according
- continuous longitudinal
- plastic
- diameter
- 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
Links
- 239000004033 plastic Substances 0.000 claims abstract description 26
- 229920003023 plastic Polymers 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract 2
- 239000000654 additive Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 229910001369 Brass Inorganic materials 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000010951 brass Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 3
- 238000004904 shortening Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
- D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
-
- 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
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0693—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a strand configuration
-
- 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
Definitions
- the invention relates to a running longitudinal element, in particular an elevator, a longitudinal crane element or the like according to the preamble of claim 1.
- the present invention is based on the object, a running Longitudinal element of the type mentioned above, in which the bending stresses and thereby significantly reduced material fatigue be, with the production of the longitudinal element with low and thus cost-effective production costs to be enabled.
- the longitudinal element is a plastic sheath and a in this Having embedded core forming wire bundle, wherein the Wire bundle has a number of wires of high strength steel, which approximate are parallel or slightly twisted to each other, are located the force transmitting material, the steel wires, in the center of the Cross-section where the bending stresses are lowest.
- This reduces Material fatigue is enormous.
- the approximately parallel or slightly stranded twisted wire assembly may be the modulus of elasticity be increased considerably. Due to the central arrangement is the force limiting cross section in size; that by however, lower breaking force is due to the use of the wires high-strength steel compensated.
- the production costs of the inventive longitudinal elements are lower than with conventional running longitudinal elements. Needs the production a conventional longitudinal element four operations, namely Manufacture of the insert, wire spools, stranding the wires into a strand, Stranding the strands to a rope, so can the inventive Make rope in one operation.
- the longitudinal element is not plastic lengthens, i. the usually required rope shortening after cable installation are unnecessary. Not only the plastic elongation is eliminated, but also the elastic elongation is reduced to a minimum, since here no Stranding to strands and the strands participates.
- the inventive running longitudinal element has thanks to the plastic sheath a high corrosion resistance.
- the inventive longitudinal members are in particular for suitable for elevator construction where the elevator ropes are e.g. for passenger lifts are strongly exposed to material fatigue and are replaced regularly have to. There is the cost-saving inventive solution of particular Advantage.
- the comparatively low weight of the inventive Longitudinal elements (30 to 40% less than conventional longitudinal elements) allows the development of additional floors in new plants, because the lift height of today's lift systems is by the Dead weight of the ropes determined resp. limited.
- the shell thickness is selected so that the outer diameter corresponds to that of a conventional longitudinal element to the conventional Replace longitudinal elements without modification costs on the system can.
- the jacket thickness is 1 mm or else also over the diameter of the embedded in the plastic jacket Kerns can go out.
- Another advantage is that the texture / suppleness the plastic sheath by admixing suitable additives can be determined smoothly to anti-slip as needed.
- Fig. Shows a running longitudinal element 1 with a plastic sheath. 4 and in this embedded central wire bundle 3, which in turn the Core 2 forming a number of wires 3 'consists.
- the wires 3 ' are steel wires of a high-strength steel whose strength is above 1570 N / mm 2 , advantageously above 2500 N / mm 2 . If wires with a diameter of about 1.0 mm are used in today's conventional longitudinal elements with strengths of about 1570 N / mm 2 , in the inventive use of steel wires with strength above 1570 N / mm 2 , advantageously even more than 2500 N / mm 2 , the wires 3 'have a diameter of only about 0.5 mm to ensure comparable breaking forces. Thus, a weight and cost savings is effected.
- the wires 3 ' may be round in cross-section, but may also have the shape of a regular polygon, ie be triangular or hexagonal, for example.
- the wires 3 ' are arranged approximately parallel to one another or twisted together.
- the lay length of the core 2 is certainly greater as the 7.5-fold of the core diameter to infinitely large (at parallel wires).
- the steel wires 3 'can also be used, for example, with zinc, brass, aluminum or other metals or metal alloys or with plastic be coated.
- the plastic sheath 4 which preferably consists of polyurethane is advantageously applied to the core 2 in an extrusion process.
- the Diameter ratio of the outside of the plastic sheath to the wire bundle should be chosen as large as possible with advantage, preferably between 2: 1 to 5: 1.
- the jacket thickness could in principle but only about 1 mm.
- the shell thickness is chosen so that the Outer diameter of that of a conventional longitudinal element corresponds to the longitudinal elements in existing systems without conversion costs to replace.
- the steel wires 3 ' may also be provided with lubricants, wherein the plastic sheath 4 prevents leakage thereof.
- a deflection roller 5 which is also provided as a drive roller can be, bending stresses resulting from compressive stresses D on the Inside in the support area 2i and from tensile stresses Z on the outside in Assemble rope area 2a.
- the extent of these bending stresses is depends on the diameter ratio longitudinal element / guide roller and determined Significantly the life or Ablegereife the longitudinal element.
- the inventive longitudinal member 1 are located all force transmitting steel wires 3 'in the respect to the cross section central part of the rope, where the bending stresses are lowest. Thereby Material fatigue is significantly reduced.
- the nature / smoothness of the plastic sheath 4 on his Outside surface can be determined by admixing suitable additives and can be smooth to anti-slip as needed.
- the plastic jacket Of course, 4 can consist of several different layers exist, for example, could on its outside another plastic sheath be provided.
- all the wires of the wire bundle 3 'made of high strength Stole In principle, however, only a part of it could be made of high-strength Be made of steel and the rest of normal steel.
- such a longitudinal element In the production of such a longitudinal element are initially the wires in the desired number from a rotatably mounted coil, for example by a so-called basket twisting machine, in which the coils basket-like stored on a grate, combined into a bundle. On such a machine, for example, a number of 100 wires or so stored on each coil. Then the wires are each according to specification either parallel or slightly twisted (with rotating Rust) to each other in slightly biased state by a centering eye positioned, by an extrusion head of a conventional per se Extruding and guided with the plastic encased. After this Cooling and drying of the produced longitudinal element can be done in a simple way Wound on a spool and compared to known Wire ropes are thus produced in one operation.
Landscapes
- Ropes Or Cables (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Control And Safety Of Cranes (AREA)
- Jib Cranes (AREA)
Abstract
Description
Die Erfindung betrifft ein laufendes Längselement, insbesondere ein Aufzug-,
ein Kran-Längselement oder dergleichen gemäss dem Oberbegriff
des Anspruches 1.The invention relates to a running longitudinal element, in particular an elevator,
a longitudinal crane element or the like according to the preamble
of
Bei bekannten Längselementen dieser Art werden mehrere Drähte zu einer Litze zusammengedreht und dann mehrere Litzen um eine Seele aus Faserstoff oder Stahl zu einem Drahtseil gedrillt. Somit befinden sich die Kraft übertragenden Drähte im äusseren Bereich des Seilquerschnittes, während die innere Einlage bzw. Seele dafür sorgt, dass diese Drähte bzw. Litzen schonend abgestützt sind, um eine höhere Lebensdauer zu erreichen.In known longitudinal elements of this type, several wires to a Twisted strand and then several strands around a core of pulp or steel drilled into a wire rope. Thus the strength is while transmitting wires in the outer region of the cable cross-section the inner liner or soul ensures that these wires or strands gently supported to achieve a longer life.
Bei der Umlenkung dieser laufenden Drahtseile um Umlenkrollen entstehen in ihm Biegespannungen, die sich auf der Innenseite des Drahtseils im Auflagebereich mit der Umlenkrolle durch Druckspannungen und auf der Aussenseite durch Zugspannungen zeigen. Diese auf das laufende Seil wirkenden Druck- und Zugspannungen bewirken eine Verkürzung der Ablegereife desselben. Das Ausmass dieser Biegespannungen ist aber auch vom Durchmesserverhältnis Seil/Umlenkrolle abhängig und bestimmt massgeblich die Lebensdauer bzw. die Ablegereife des Drahtseils.When deflecting these running wire ropes arise around pulleys in it bending stresses, which are on the inside of the wire rope in the Bearing area with the deflection roller by compressive stresses and on the Outside by tensile stresses show. This on the running rope acting compressive and tensile stresses cause a shortening of Ablegereife same. The extent of these bending stresses is also depends on the diameter ratio rope / pulley and determined Significantly the life or the Ablegereife of the wire rope.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein laufendes Längselement der eingangs genannten Art zu schaffen, bei dem die Biegespannungen und dadurch bedingte Materialermüdungen erheblich reduziert werden, wobei die Herstellung des Längselements mit geringem und damit kostengünstigen Herstellungsaufwand ermöglicht werden soll.The present invention is based on the object, a running Longitudinal element of the type mentioned above, in which the bending stresses and thereby significantly reduced material fatigue be, with the production of the longitudinal element with low and thus cost-effective production costs to be enabled.
Diese Aufgabe wird erfindungsgemäss durch ein laufendes Längselement
mit den Merkmalen des Anspruches 1 gelöst.This object is achieved according to the invention by a running longitudinal element
solved with the features of
Weitere bevorzugte Ausgestaltungen des erfindungsgemässen laufenden Längselementes bilden den Gegenstand der abhängigen Ansprüche.Further preferred embodiments of the inventive running Longitudinal element form the subject of the dependent claims.
Dadurch, dass das Längselement einen Kunststoffmantel und ein in diesem eingebettetes, einen Kern bildendes Drahtbündel aufweist, wobei das Drahtbündel eine Anzahl von Drähten aus hochfestem Stahl hat, die annähernd parallel oder leicht verdrillt zueinander angeordnet sind, befinden sich das Kraft übertragende Material, die Stahldrähte, im Zentrum des Querschnittes, wo die Biegespannungen am geringsten sind. Dadurch reduziert sich die Materialermüdung enorm. Durch die annähernd parallele oder leicht litzenartig verdrillte Drahtanordnung kann der Elastizitätsmodul erheblich erhöht werden. Durch die mittige Anordnung ist der Kraft übertragende Querschnitt in seiner Grösse eingeschränkt; die dadurch niedrigere Bruchkraft wird jedoch durch die Verwendung der Drähte aus hochfestem Stahl kompensiert.Characterized in that the longitudinal element is a plastic sheath and a in this Having embedded core forming wire bundle, wherein the Wire bundle has a number of wires of high strength steel, which approximate are parallel or slightly twisted to each other, are located the force transmitting material, the steel wires, in the center of the Cross-section where the bending stresses are lowest. This reduces Material fatigue is enormous. By the approximately parallel or slightly stranded twisted wire assembly may be the modulus of elasticity be increased considerably. Due to the central arrangement is the force limiting cross section in size; that by however, lower breaking force is due to the use of the wires high-strength steel compensated.
Die Verwendung von hochfesten Drähten, dank denen die erfindungsgemässen Längselemente bei wesentlich kleineren Drahtdurchmessern vergleichbare Bruchkräfte erreichen wie herkömmliche Längselemente, bedeutet nicht nur eine Gewichtseinsparung, sondern auch eine massgebliche Materialkosten-Einsparung.The use of high-strength wires, thanks to which the inventive Longitudinal elements comparable to much smaller wire diameters Breaking forces reach like conventional longitudinal elements, means not only a weight saving, but also a significant one Material cost savings.
Auch die Herstellungskosten der erfindungsgemässen Längselemente sind tiefer als bei konventionellen laufenden Längselementen. Braucht die Fertigung eines konventionellen Längselementes vier Arbeitsgänge, nämlich Fertigung der Einlage, Drahtspulen, Verseilen der Drähte zu einer Litze, Verseilen der Litzen zu einem Seil, so lässt sich das erfindungsgemässe Seil in einem Arbeitsgang herstellen.The production costs of the inventive longitudinal elements are lower than with conventional running longitudinal elements. Needs the production a conventional longitudinal element four operations, namely Manufacture of the insert, wire spools, stranding the wires into a strand, Stranding the strands to a rope, so can the inventive Make rope in one operation.
Durch die Einbettung des Kerns aus Stahldrähten in einem Kunststoffmantel erhöht sich die Lebensdauer um das Mehrfache. Die glatte, geschmeidige Oberfläche des Kunststoffmantels sowie deren Durchmessergenauigkeit bewirken eine ausserordentliche Laufruhe, d.h. es entstehen keine Vibrationen im Längselement.By embedding the core of steel wires in a plastic jacket the service life increases many times over. The smooth, supple Surface of the plastic sheath and their diameter accuracy cause an extraordinary smoothness, i. there are none Vibrations in the longitudinal element.
Ein weiterer Vorteil besteht darin, dass sich das Längselement nicht plastisch längt, d.h. die üblicherweise erforderlichen Seilkürzungen nach Seileinbau erübrigen sich. Nicht nur die plastische Längung entfällt, sondern auch die elastische Längung wird auf ein Minimum reduziert, da hier keine Verseilung zu Litzen und der Litzen mitwirkt.Another advantage is that the longitudinal element is not plastic lengthens, i. the usually required rope shortening after cable installation are unnecessary. Not only the plastic elongation is eliminated, but also the elastic elongation is reduced to a minimum, since here no Stranding to strands and the strands participates.
Das erfindungsgemässe laufende Längselement weist dank dem Kunststoffmantel eine hohe Korrosionsbeständigkeit auf.The inventive running longitudinal element has thanks to the plastic sheath a high corrosion resistance.
Die erfindungsgemässen laufenden Längselemente sind insbesondere für den Aufzugbau geeignet, wo die Aufzugseile z.B. für Personenaufzüge stark der Materialermüdung ausgesetzt sind und regelmässig ersetzt werden müssen. Da ist die kostensparende erfindungsgemässe Lösung von besonderem Vorteil.The inventive longitudinal members are in particular for suitable for elevator construction where the elevator ropes are e.g. for passenger lifts are strongly exposed to material fatigue and are replaced regularly have to. There is the cost-saving inventive solution of particular Advantage.
Das vergleichsweise niedrige Eigengewicht der erfindungsgemässen Längselemente (30 bis 40% geringer als bei herkömmlichen Längselementen) ermöglicht bei Neuanlagen die Erschliessung zusätzlicher Stockwerke, denn die Aufzugshöhe der heutigen Liftsysteme wird durch das Eigengewicht der Seile bestimmt resp. eingeschränkt.The comparatively low weight of the inventive Longitudinal elements (30 to 40% less than conventional longitudinal elements) allows the development of additional floors in new plants, because the lift height of today's lift systems is by the Dead weight of the ropes determined resp. limited.
Mit Vorteil wird die Mantelstärke so gewählt, dass der Aussendurchmesser demjenigen eines konventionellen Längselementes entspricht, um die konventionellen Längselemente ohne Umbaukosten an der Anlage ersetzen zu können. Dies bedeutet, dass die Mantelstärke 1 mm betragen oder aber auch bis über den Durchmesser des im Kunststoffmantel eingebetteten Kerns hinausgehen kann.Advantageously, the shell thickness is selected so that the outer diameter corresponds to that of a conventional longitudinal element to the conventional Replace longitudinal elements without modification costs on the system can. This means that the jacket thickness is 1 mm or else also over the diameter of the embedded in the plastic jacket Kerns can go out.
Für den Betrieb eines Personenaufzuges ist auch die Reibung zwischen dem laufenden Längselement und der als Antriebsrolle ausgebildeten Umlenkrolle entscheidend. Bei herkömmlichen Längselementen führt oft eine übermässige Fettung oder Schmierung zum problematischen Rutschen. Beim erfindungsgemässen Längselement können die Kraft übertragende Drähte mit optimalen Schmierstoffen getränkt werden, wobei der äussere Kunststoffmantel das Austreten dieser Schmierstoffe auf die Umlenkrolle verhindert.For the operation of a passenger elevator is also the friction between the current longitudinal element and the guide roller designed as a drive roller crucial. In conventional longitudinal elements often leads one Excessive greasing or lubrication for problematic slipping. When longitudinal element according to the invention, the force transmitting Wires are impregnated with optimal lubricants, with the outer Plastic jacket, the leakage of these lubricants on the pulley prevented.
Ein weiterer Vorteil besteht darin, dass die Beschaffenheit/Geschmeidigkeit des Kunststoffmantels durch Beimischung geeigneter Additive je nach Bedarf glatt bis rutschhemmend bestimmt werden kann.Another advantage is that the texture / suppleness the plastic sheath by admixing suitable additives can be determined smoothly to anti-slip as needed.
Die Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Es zeigen rein schematisch:
- Fig. 1
- ein Ausführungsbeispiel eines erfindungsgemässen laufenden Längselementes im Querschnitt; und
- Fig. 2
- Spannungsverhältnisse im Längselement bei einer Umlenkung.
- Fig. 1
- an embodiment of an inventive continuous longitudinal element in cross section; and
- Fig. 2
- Tension conditions in the longitudinal element at a deflection.
Fig. zeigt ein laufendes Längselement 1 mit einem Kunststoffmantel 4
und in diesem eingebetteten zentralen Drahtbündel 3, das seinerseits den
Kern 2 bildend aus einer Anzahl von Drähten 3' besteht.Fig. Shows a running
Bei den Drähten 3' handelt es sich erfindungsgemäss um Stahldrähte aus einem hochfesten Stahl, dessen Festigkeit über 1570 N/mm2, vorteilhaft über 2500 N/mm2 beträgt. Werden heutzutage bei den konventionellen laufenden Längselementen Drähte mit einem Durchmesser von etwa 1,0 mm verwendet mit Festigkeiten von etwa 1570 N/mm2, so können bei der erfindungsgemässen Verwendung von Stahldrähten mit Festigkeit über 1570 N/mm2, vorteilhaft sogar mehr als 2500 N/mm2, die Drähte 3' einen Durchmesser von nur noch etwa 0,5 mm aufweisen, um vergleichbare Bruchkräfte zu gewährleisten. Somit wird eine Gewicht- und Kosteneinsparung bewirkt. Die Drähte 3' können im Querschnitt rund, aber auch die Form eines regelmässigen Vielecks aufweisen, d.h. z.B. dreieckig oder sechseckig sein.According to the invention, the wires 3 'are steel wires of a high-strength steel whose strength is above 1570 N / mm 2 , advantageously above 2500 N / mm 2 . If wires with a diameter of about 1.0 mm are used in today's conventional longitudinal elements with strengths of about 1570 N / mm 2 , in the inventive use of steel wires with strength above 1570 N / mm 2 , advantageously even more than 2500 N / mm 2 , the wires 3 'have a diameter of only about 0.5 mm to ensure comparable breaking forces. Thus, a weight and cost savings is effected. The wires 3 'may be round in cross-section, but may also have the shape of a regular polygon, ie be triangular or hexagonal, for example.
Die Drähte 3' sind annähernd parallel zueinander angeordnet oder
miteinander verdrillt. Die Schlaglänge des Kerns 2 ist jedenfalls grösser
als das 7,5-Fache des Kerndurchmessers bis unendlich gross (bei
parallelen Drähten).The wires 3 'are arranged approximately parallel to one another or
twisted together. The lay length of the
Die Stahldrähte 3' können auch beispielsweise mit Zink, Messing, Aluminium oder anderen Metallen oder Metallegierungen oder mit Kunststoff beschichtet sein.The steel wires 3 'can also be used, for example, with zinc, brass, aluminum or other metals or metal alloys or with plastic be coated.
Der Kunststoffmantel 4, der vorzugsweise aus Polyurethan besteht, wird
mit Vorteil in einem Extrusionsverfahren auf den Kern 2 aufgebracht. Das
Durchmesserverhältnis der Aussenseite des Kunststoffmantels zum Drahtbündel
soll mit Vorteil möglichst gross gewählt sein, vorzugsweise zwischen
2:1 bis 5:1. Die Mantelstärke könnte im Prinzip aber auch nur etwa
1 mm betragen. Mit Vorteil wird die Mantelstärke so gewählt, dass der
Aussendurchmesser demjenigen eines konventionellen Längselementes
entspricht, um in bestehende Anlagen die Längselemente ohne Umbaukosten
ersetzen zu können.The
Die Stahldrähte 3' können auch mit Schmierstoffen versehen sein, wobei
der Kunststoffmantel 4 ein Austreten derselben verhindert.The steel wires 3 'may also be provided with lubricants, wherein
the
Wie in Fig. 2 angedeutet ist, entstehen bei einer Umlenkung des Längselementes
1 um eine Umlenkrolle 5, die auch als Antriebsrolle vorgesehen
sein kann, Biegespannungen, die sich aus Druckspannungen D auf der
Innenseite im Auflagebereich 2i und aus Zugspannungen Z aussenseitig im
Seilbereich 2a zusammensetzen. Das Ausmass dieser Biegespannungen ist
vom Durchmesserverhältnis Längselement/Umlenkrolle abhängig und bestimmt
massgeblich die Lebensdauer bzw. Ablegereife des Längselementes.
Beim erfindungsgemässen laufenden Längselement 1 befinden sich
alle Kraft übertragenden Stahldrähte 3' in dem bezüglich des Querschnitts
zentralen Teil des Seils, wo die Biegespannungen am geringsten sind. Dadurch
wird die Materialermüdung erheblich reduziert.As indicated in Fig. 2, arise at a deflection of the
Die Beschaffenheit/Geschmeidigkeit des Kunststoffmantels 4 an seiner
Aussenfläche kann durch Beimischung geeigneter Additive bestimmt und
je nach Bedarf glatt bis rutschhemmend ausgeführt werden. Der Kunststoffmantel
4 kann selbstverständlich aus mehreren unterschiedlichen Lagen
bestehen, bspw. könnte an seiner Aussenseite ein anderer Kunststoffmantel
vorgesehen sein.The nature / smoothness of the
Vorteilhaft bestehen sämtliche Drähte des Drahtbündels 3' aus hochfestem Stahl. Im Prinzip könnten aber auch nur ein Teil davon aus hochfestem Stahl hergestellt sein und die übrigen aus normalem Stahl.Advantageously, all the wires of the wire bundle 3 'made of high strength Stole. In principle, however, only a part of it could be made of high-strength Be made of steel and the rest of normal steel.
Bei der Herstellung eines solchen Längselements werden vorerst die Drähte in der gewünschten Anzahl ab einer drehbar gelagerten Spule beispielsweise durch eine sogenannte Korbverseilmaschine, bei welcher die Spulen korbartig an einem Rost gelagert sind, zu einem Bündel zusammengefasst. An einer solchen Maschine ist zum Beispiel eine Anzahl von 100 Drähten oder so an je einer Spule gelagert. Anschliessend werden die Drähte je nach Vorgabe entweder parallel oder aber leicht verdrillt (bei sich drehendem Rost) zueinander in leicht vorgespannten Zustand durch eine Zentrieröse positioniert, durch einen Extrudierkopf einer an sich herkömmlichen Extrudiermaschine geführt und mit dem Kunststoff ummantelt. Nach dem Abkühlen und Trocknen des erzeugten Längselements kann es in einfacher Weise auf eine Spule aufgewickelt und im Vergleich zu bekannten Drahtseilen somit in einem Arbeitsgang hergestellt werden.In the production of such a longitudinal element are initially the wires in the desired number from a rotatably mounted coil, for example by a so-called basket twisting machine, in which the coils basket-like stored on a grate, combined into a bundle. On such a machine, for example, a number of 100 wires or so stored on each coil. Then the wires are each according to specification either parallel or slightly twisted (with rotating Rust) to each other in slightly biased state by a centering eye positioned, by an extrusion head of a conventional per se Extruding and guided with the plastic encased. After this Cooling and drying of the produced longitudinal element can be done in a simple way Wound on a spool and compared to known Wire ropes are thus produced in one operation.
Als weitere Anwendung solcher erfindungsgemässen Längselementen könnten mehrere von diesen miteinander verseilt werden.As a further application of such inventive longitudinal elements several of these could be stranded together.
Claims (10)
das Längselement (1) einen Kunststoffmantel (4) und ein in diesem eingebettetes, einen Kern (2) bildendes Drahtbündel (3) aufweist, wobei das Drahtbündel (3) eine Anzahl von Drähten (3') aus hochfestem Stahl aufweist, die annähernd parallel oder leicht verdrillt zueinander angeordnet sind.Continuous longitudinal element, in particular an elevator, a crane longitudinal element or the like, which serves to carry out a force transmission with it and in its longitudinal axis to at least one deflection roller (5) is movable, characterized in that
the longitudinal element (1) has a plastic sheath (4) and a wire bundle (3) embedded therein, forming a core (2), the wire bundle (3) having a number of high-strength steel wires (3 ') which are approximately parallel or are slightly twisted to each other.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE50306853T DE50306853D1 (en) | 2003-07-16 | 2003-07-16 | Running longitudinal element, in particular an elevator, a crane longitudinal element or the like |
| EP03405545A EP1498542B1 (en) | 2003-07-16 | 2003-07-16 | Longitudinal running element, especially for a lift or crane or the like |
| ES03405545T ES2286400T3 (en) | 2003-07-16 | 2003-07-16 | LONGITUDINAL ELEMENT IN MOVEMENT, ESPECIALLY A LONGITUDINAL ELEMENT OF ELEVATOR OR CRANE OR SIMILAR. |
| AT03405545T ATE357555T1 (en) | 2003-07-16 | 2003-07-16 | RUNNING LONGITUDINAL ELEMENT, IN PARTICULAR A LIFT, A CRANE LONGITUDINAL ELEMENT OR THE LIKE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03405545A EP1498542B1 (en) | 2003-07-16 | 2003-07-16 | Longitudinal running element, especially for a lift or crane or the like |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1498542A1 true EP1498542A1 (en) | 2005-01-19 |
| EP1498542B1 EP1498542B1 (en) | 2007-03-21 |
Family
ID=33462285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03405545A Expired - Lifetime EP1498542B1 (en) | 2003-07-16 | 2003-07-16 | Longitudinal running element, especially for a lift or crane or the like |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1498542B1 (en) |
| AT (1) | ATE357555T1 (en) |
| DE (1) | DE50306853D1 (en) |
| ES (1) | ES2286400T3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012141710A1 (en) | 2011-04-14 | 2012-10-18 | Otis Elevator Company | Coated rope or belt for elevator systems |
| DE102015213568A1 (en) | 2015-07-20 | 2017-01-26 | Sgl Carbon Se | Material with at least two-layered sheath |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0444245A1 (en) * | 1990-02-27 | 1991-09-04 | Gerhard Dietz | Steel cable with a reinforcing steel insert for hoists |
| EP0672781A1 (en) * | 1994-03-02 | 1995-09-20 | Inventio Ag | Cable for lifts |
| EP1273695A1 (en) * | 2000-03-15 | 2003-01-08 | Hitachi, Ltd. | Rope, and elevator using the same |
| EP1314813A1 (en) * | 2001-11-23 | 2003-05-28 | N.V. Bekaert S.A. | Cable and window elevator system using such cable |
-
2003
- 2003-07-16 DE DE50306853T patent/DE50306853D1/en not_active Expired - Lifetime
- 2003-07-16 AT AT03405545T patent/ATE357555T1/en active
- 2003-07-16 EP EP03405545A patent/EP1498542B1/en not_active Expired - Lifetime
- 2003-07-16 ES ES03405545T patent/ES2286400T3/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0444245A1 (en) * | 1990-02-27 | 1991-09-04 | Gerhard Dietz | Steel cable with a reinforcing steel insert for hoists |
| EP0672781A1 (en) * | 1994-03-02 | 1995-09-20 | Inventio Ag | Cable for lifts |
| EP1273695A1 (en) * | 2000-03-15 | 2003-01-08 | Hitachi, Ltd. | Rope, and elevator using the same |
| EP1314813A1 (en) * | 2001-11-23 | 2003-05-28 | N.V. Bekaert S.A. | Cable and window elevator system using such cable |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012141710A1 (en) | 2011-04-14 | 2012-10-18 | Otis Elevator Company | Coated rope or belt for elevator systems |
| EP2697147A4 (en) * | 2011-04-14 | 2015-02-18 | Otis Elevator Co | Coated rope or belt for elevator systems |
| US9731938B2 (en) | 2011-04-14 | 2017-08-15 | Otis Elevator Company | Coated rope or belt for elevator systems |
| DE102015213568A1 (en) | 2015-07-20 | 2017-01-26 | Sgl Carbon Se | Material with at least two-layered sheath |
| WO2017012802A1 (en) | 2015-07-20 | 2017-01-26 | Sgl Carbon Se | Material with at least two layer coverings |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1498542B1 (en) | 2007-03-21 |
| ATE357555T1 (en) | 2007-04-15 |
| DE50306853D1 (en) | 2007-05-03 |
| ES2286400T3 (en) | 2007-12-01 |
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