EP0699618B1 - Clamping device for synthetic fibre cable - Google Patents
Clamping device for synthetic fibre cable Download PDFInfo
- Publication number
- EP0699618B1 EP0699618B1 EP95112341A EP95112341A EP0699618B1 EP 0699618 B1 EP0699618 B1 EP 0699618B1 EP 95112341 A EP95112341 A EP 95112341A EP 95112341 A EP95112341 A EP 95112341A EP 0699618 B1 EP0699618 B1 EP 0699618B1
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- EP
- European Patent Office
- Prior art keywords
- cable
- rope
- clamping device
- grooves
- cables
- 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.)
- Expired - Lifetime
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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
- B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings
Definitions
- the invention is based on a rope clamping device for a synthetic fiber rope according to the preamble of claim 1.
- a rope clamping device for a synthetic fiber rope according to the preamble of claim 1.
- DE 34 03 101 C1 such a device for bracing antenna or telescopic masts has become known, which has a round bar fastened to a base plate with a thread-like recess having.
- This rope clamp is only suitable for a single rope and is relatively large and voluminous in relation to the diameter of the rope in each direction of expansion.
- High-strength fiber ropes made of one-dimensional, elongated molecular chains and an all-round protective polyurethane cover meet these requirements. They are light, have a small diameter and a high tensile strength. Without reducing the tensile strength, such ropes can only absorb small transverse forces caused by clamping or pressing.
- the invention characterized in the claims solves the problem of avoiding the disadvantages of the known device and of creating a rope clamping device suitable for synthetic ropes for large loads, which enables the secure attachment of a large number of closely spaced ropes.
- the rope connection particularly fulfills the requirements in elevator construction, where large loads have to be fixed on a small mounting surface.
- the short construction in the direction of the shaft extension has the additional advantage that the shaft length can be fully utilized or that no additional shaft elevation is required.
- the tensile force in the rope is largely absorbed by the rope clamping device via the high coefficient of friction of the polyurethane sheath in the rope groove and the rope is not subjected to stress-reducing clamping, especially when entering the drainage area of the rope grooves across the grain.
- sheathed synthetic fiber ropes can be attached without breaking or damaging the protective sheathing.
- a cabin 2 guided in a shaft 1 hangs on several supporting ropes 3 made of synthetic fibers, which run over a traction sheave 5 connected to a motor 4.
- On the cabin 2 there are rope clamps 6 to which the ropes are attached at one end.
- the other ends of the ropes 3 are fastened in the same way to a counterweight 7, which is also guided in the shaft 1.
- the traction sheave 5 has six closely spaced grooves 8 for one rope each. Traction sheaves with two to twelve grooves are common in elevator construction.
- the cabin 2 reaches its point closest to the traction sheave, ie the cable clamping devices 6 are located directly under the traction sheave 5. If the cabin stops on the bottom floor, they are on the top of the counterweight 7 attached rope clamps 6 directly under the traction sheave 5th
- FIG. 2 shows a detail of a rope clamping device 6, the ropes 3 being drawn only in sections for better clarity.
- a cylindrical holding drum 10 Transversely to the direction of the cable, which runs perpendicular to the plane of the sheet in FIG. 2, there is a cylindrical holding drum 10 which is screwed with angled holding plates 11 so that it cannot move and cannot be rotated, for example here on the counterweight 7.
- a rope group 14 with three ropes 3 each is wound onto the rope grooves 12 from a run-off area 13 in the middle of the holding drum 10 towards its two ends.
- the two cable groups 14 therefore run at a distance from one another from opposite sides of the holding drum 10. Seen across the axis of the holding drum 10, however, the ropes 3 lie directly next to one another, as they run onto the traction sheave with six adjacent grooves.
- the groove width of the rope grooves 12 corresponds to the rope diameter in the middle of the holding drum 10 at the entrance or exit of the ropes 3. A lateral pressure of the cable 3 which reduces the load capacity is thereby avoided. From the entry of the loaded ropes, the rope grooves 12 become narrower in their cross-section, so that the rope is gradually clamped sideways as the tensile load decreases. In the drawing, the continuous reduction in cross-section is shown as an abrupt change for reasons of simplification.
- the unloaded rope ends are fixed by clamping brackets 15 in the rope grooves 12, which are hooked into the end faces and are screwed onto the holding drum 10 after the first thread-like groove 16 of all rope grooves 12.
- the clamping brackets 15 are by securing brackets lying loosely as far as possible 17 extended, which extend in the axial direction of the holding drum 10 and run across the ropes 3 without pressure. When relieved, they prevent the slack ropes 3 from falling out of the rope grooves 12.
- the holding drum 31 ⁇ 2 usable groove passages 16.
- more or less grooving can be provided.
- the embodiment shows that for simple lifts with only two ropes a single spiral groove would suffice, which is wound from both ends with one rope each.
- the tensile force effective in a rope 3 is successively transmitted to the holding drum 10 via friction in the associated rope groove 12.
- the synthetic fiber rope 3 is increasingly clamped laterally.
- the transverse forces that gradually increase as the tensile force decreases in the holding drum 10 remain locally so low that the original tensile strength of the rope 3 is not reduced.
- a rope 3 is stretched as a result of the tensile stress, it can be easily re-tensioned by at least partially unwinding it from the holding drum 10 and then winding it again with a shortened rope length. Tools are not required for this process. A protruding end of the rope is simply cut off.
- the rope clamping device 6 ' consists of only one holding drum 10', which has four adjacent spiral rope grooves 12 'on each half of the drum.
- the two groups of four have opposite sense of thread, so that the ropes 3 all run in a line directly adjacent to one another from the holding drum 10 ′ and run onto the traction sheave 5 connected to the motor 4 at a constant distance.
- the ropes 3 are again fixed with clamps 15 and secured with safety clips 17.
- the third exemplary embodiment shows how, with the arrangement of two or four holding drums 10 ′′, practically any number of ropes 3 can run directly next to one another from the rope clamping device 6 without making the holding drums 10 ′′ become too long.
- two holding drums 10 ′′ are arranged one behind the other on the same axis and two such pairs are arranged side by side.
- On each holding drum 10 '' three a total of twelve ropes 3 are wound.
- Holding drums 10 ′′ arranged at the same axis have spiral rope grooves 12 ′′ each with opposite thread sense, the ropes 3 are wound in the same winding direction, so that they strive towards the opposite ends of the holding drums 10 ′′.
- Holding drums 10 ′′ arranged next to one another likewise have cable grooves 12 ′′ with an opposite thread sense, but here the winding direction of the cables 3 is also opposite.
- the result is that the drainage areas 13 ′′ of the cable grooves 12 ′′ of all holding drums 10 ′′ face each other. This means that all ropes 3 run directly next to each other and on approximately the same line.
- the individual holding drums 10 ′′ can be made very thin, since the possible radius of curvature of a plastic rope 3 is only one to six times the rope diameter, depending on the rigidity.
- the cable clamping device 6 can thus be individually adapted to the dimensions or space conditions in the case of the counterweight and cabin.
- the cable clamping device 6 ′′ ′′ has spiral grooves (12 ′′ ′′) which are designed as flat curves winding around a point.
- the holding drums 10 ′′ ′′ are flat disks with a milled in one end face in the Cross section gradually narrowing rope grooves 12 "' Inserting the rope 3 covered with a screwed flat cover 18.
- the next adjacent holding drum 10 "' can also take place.
- the unloaded rope end is fixed with a clamping bracket 15"'.
- the rope end can be passed through a central opening 19 in the holding drum 10 "'or a central opening 20 in the cover 18.
- the opening 20 is expediently chosen to be large enough that the screws of the clamping bracket 15"' are removed without removing the cover 18 are accessible. Then the cover 18 only needs to be loosened for retensioning, but not completely removed.
- the rope clamping device 6 '' ' has the advantage of an extraordinarily narrow construction, but requires a somewhat greater height in the shaft direction than the solutions described above.
- the disk-shaped holding drums 10 "' can, for example, be arranged as a group of four, as in the third exemplary embodiment. If more than four ropes are required, a plurality of holding drums 10"' can be arranged next to one another at a slant by one groove width of the traction sheave 5, so that seen transversely to the disks Ropes lie next to each other.
- the fifth exemplary embodiment according to FIG. 6 shows a rope clamping device 6 '''' which is particularly simple and inexpensive to construct.
- the two adjacent holding drums 10 '''' consist of two flat, preferably integrally connected disks 21.
- a cable groove 12 '''' which widens slightly towards the outside.
- a rope 3 is wound spirally in this.
- the rope groove 12 '''' becomes narrower inwards from the entry of the rope and only clamps the inner portion of the rope 3 laterally.
- the superimposed rope turns exert the greatest pressure on the innermost turn. The extreme, due to the load on Most of the stressed rope turns are not pressed on the side or only slightly.
- the holding drum 10 '' '' is pressed axially onto a cone 22 which is fixedly connected to a holding bracket 23.
- a holding bracket 23 For reliable fixing of the holding drum 10 '' '', it is fastened to the holding bracket 23 with screws 24.
- two or any number of pairs of holding drums 10 '' '', as indicated schematically in FIG. 7, can each be arranged offset from one another.
Landscapes
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Ropes Or Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Processing Of Terminals (AREA)
Abstract
Description
Die Erfindung geht aus von einer Seilklemmvorrichtung für ein Kunstfaserseil nach dem Oberbegriff des Anspruchs 1. Aus der DE 34 03 101 C1 ist eine solche Vorrichtung zum Abspannen von Antennen- oder Teleskopmasten bekannt geworden, welche einen auf einer Grundplatte befestigten Rundstab mit einer gewindeförmig eingeschnittenen Vertiefung aufweist. Diese Seilklemme ist nur für ein einziges Seil geeignet und baut im Verhältnis zum Durchmesser des Seils in jeder Ausdehnungsrichtung relativ gross und voluminös.The invention is based on a rope clamping device for a synthetic fiber rope according to the preamble of claim 1. From DE 34 03 101 C1, such a device for bracing antenna or telescopic masts has become known, which has a round bar fastened to a base plate with a thread-like recess having. This rope clamp is only suitable for a single rope and is relatively large and voluminous in relation to the diameter of the rope in each direction of expansion.
Bei bestimmten Anwendungen wie bei Aufzugsanlagen sind einerseits grosse Seillängen notwendig, andererseits besteht aus energetischen Gründen die Forderung nach möglichst kleinen bewegten Massen. Hochfestfaserseile aus eindimensionalen, langgestreckten Molekülketten und einer allseits schützenden Polyuretanhülle erfüllen diese Anforderungen. Sie sind leicht, haben einen kleinen Durchmesser und eine grosse Zugfestigkeit. Ohne Verminderung der Zugfestigkeit können solche Seile lediglich kleine durch Klemmung oder Pressung hervorgerufene Querkräfte absorbieren.In certain applications, such as in elevator systems, large rope lengths are necessary on the one hand, and on the other hand there is a demand for the smallest possible moving masses for energy reasons. High-strength fiber ropes made of one-dimensional, elongated molecular chains and an all-round protective polyurethane cover meet these requirements. They are light, have a small diameter and a high tensile strength. Without reducing the tensile strength, such ropes can only absorb small transverse forces caused by clamping or pressing.
Andererseits müssen im Aufzugsbau mehrere Seile eng beieinanderliegend befestigt werden. Am Gegengewicht beispielsweise steht regelmässig nur eine schmale 10-15 cm breite Fläche zum Festmachen der Seile zur Verfügung. Bei solchen Platzverhältnissen ist die bekannte Seilklemmvorrichtung wegen ihrer Sperrigkeit nicht einsetzbar. Ausladende Seilklemmvorrichtungen fächern den Seilstrang auf, was zu einem übermässigen Verschleiss der Seile und der Seilrillen führt, insbesondere wenn die Aufzugskabine oder das Gegengewicht in die Nähe der Treibscheibe oder der Umlenkrolle kommen.On the other hand, several ropes have to be fastened close together in elevator construction. On the counterweight, for example, there is regularly only a narrow 10-15 cm wide area available for fastening the ropes. In such space, the known rope clamping device cannot be used because of its bulk. Extensive rope clamping devices fan out the rope strand, which leads to excessive wear of the ropes and the rope grooves, especially if the elevator car or the counterweight comes close to the traction sheave or the pulley.
Die in den Ansprüchen gekennzeichnete Erfindung löst die Aufgabe, die Nachteile der bekannten Vorrichtung zu vermeiden und eine für Kunstfaserseile geeignete Seilklemmvorrichtung für grosse Lasten zu schaffen, die die sichere Befestigung einer grösseren Anzahl von eng beieinanderliegenden Seilen ermöglicht. Die Seilverbindung erfüllt insbesondere die Anforderungen im Aufzugsbau, wo grosse Lasten auf kleiner Montagefläche fixiert werden müssen.The invention characterized in the claims solves the problem of avoiding the disadvantages of the known device and of creating a rope clamping device suitable for synthetic ropes for large loads, which enables the secure attachment of a large number of closely spaced ropes. The rope connection particularly fulfills the requirements in elevator construction, where large loads have to be fixed on a small mounting surface.
Dieses Problem wird mit einer erfindungsgemäßen Seilklemmvorrichtung nach Anspruch 1 gelöst.This problem is solved with a rope clamping device according to the invention according to claim 1.
Die durch die Erfindung erreichten Vorteile sind darin zu sehen, dass die befestigten Seile nebeneinander ohne wesentliche Ablenkung über die eng beieinanderliegenden Rillen der Treibscheibe laufen können. Insbesondere wenn die Kabine oder das Gegengewicht seinen der Treibscheibe nächsten Punkt erreicht, ist damit eine gleichmässige Belastung aller Seile gegeben und es treten keine Querkräfte auf, die - insbesondere bei aussen liegenden Seilen - zu einem Abstreifen von der Treibscheibe führen könnten.The advantages achieved by the invention can be seen in the fact that the attached ropes can run next to one another without substantial deflection over the closely spaced grooves of the traction sheave. In particular, when the cabin or the counterweight reaches its point closest to the traction sheave, there is an even load on all the ropes and there are no transverse forces which, particularly with ropes located outside, could lead to stripping from the traction sheave.
Die in Schachterstreckungsrichtung kurze Bauweise hat den zusätzlichen Vorteil, dass die Schachtlänge voll ausgenutzt werden kann bzw. keine zusätzliche Schachterhöhung erforderlich ist.The short construction in the direction of the shaft extension has the additional advantage that the shaft length can be fully utilized or that no additional shaft elevation is required.
Hinzu kommt, dass die Zugkraft im Seil weitgehend über den hohen Reibwert der Polyuretanhülle in der Seilnut von der Seilklemmvorrichtung aufgenommen wird und das Seil insbesondere beim Eintritt im Ablaufbereich der Seilnuten quer zum Faserverlauf nicht durch tragkraftminderndes Klemmen beansprucht wird. Von Vorteil ist auch, dass ummantelte Kunstfaserseile ohne Auftrennung oder Beschädigung der schützenden Ummantelung befestigt werden können.In addition, the tensile force in the rope is largely absorbed by the rope clamping device via the high coefficient of friction of the polyurethane sheath in the rope groove and the rope is not subjected to stress-reducing clamping, especially when entering the drainage area of the rope grooves across the grain. Another advantage is that sheathed synthetic fiber ropes can be attached without breaking or damaging the protective sheathing.
Mehrere Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:
- Fig. 1
- eine schematische Ansicht einer Aufzugsanlage mit Kabine und Gegengewicht,
- Fig. 2
- eine vergrösserte Draufsicht auf eine Seilklemmvorrichtung gemäss einem ersten Ausführungsbeispiel,
- Fig. 3
- ein zweites Ausführungsbeispiel einer Seilklemmvorrichtung in Seitenansicht,
- Fig. 4
- schematisch ein drittes Ausführungsbeispiel einer Seilklemmvorrichtung in Draufsicht
- Fig. 5
- ein viertes Ausführungsbeispiel einer Seilklemmvorrichtung und
- Fig. 6,7
- ein fünftes Ausführungsbeispiel einer Seilklemmvorrichtung.
- Fig. 1
- 1 shows a schematic view of an elevator installation with a cabin and counterweight,
- Fig. 2
- 2 shows an enlarged top view of a rope clamping device according to a first exemplary embodiment,
- Fig. 3
- a second embodiment of a rope clamping device in side view,
- Fig. 4
- schematically a third embodiment of a rope clamping device in plan view
- Fig. 5
- a fourth embodiment of a rope clamping device and
- Fig. 6.7
- a fifth embodiment of a rope clamping device.
Gemäss Fig. 1 hängt eine in einem Schacht 1 geführte Kabine 2 an mehreren tragenden Seilen 3 aus Kunstfasern, die über eine mit einem Motor 4 verbundene Treibscheibe 5 laufen. Auf der Kabine 2 befinden sich Seilklemmvorrichtungen 6, an denen die Seile mit einem Ende befestigt sind. Die jeweils anderen Enden der Seile 3 sind in gleicher Weise an einem Gegengewicht 7 festgemacht, welches ebenfalls in dem Schacht 1 geführt ist. Die Treibscheibe 5 weist sechs dicht nebeneinanderliegende Rillen 8 für jeweils ein Seil auf. Im Aufzugsbau üblich sind Treibscheiben mit zwei bis zwölf Rillen. Im obersten Stockwerk erreicht die Kabine 2 ihren der Treibscheibe nächsten Punkt, d.h. die Seilklemmvorrichtungen 6 befinden sich unmittelbar unter der Treibscheibe 5. Hält die Kabine im untersten Stockwerk, so befinden sich die an der Oberseite des Gegengewichts 7 angebrachten Seilklemmvorrichtungen 6 direkt unter der Treibscheibe 5.According to FIG. 1, a cabin 2 guided in a shaft 1 hangs on several supporting ropes 3 made of synthetic fibers, which run over a traction sheave 5 connected to a motor 4. On the cabin 2 there are rope clamps 6 to which the ropes are attached at one end. The other ends of the ropes 3 are fastened in the same way to a counterweight 7, which is also guided in the shaft 1. The traction sheave 5 has six closely spaced grooves 8 for one rope each. Traction sheaves with two to twelve grooves are common in elevator construction. On the top floor, the cabin 2 reaches its point closest to the traction sheave, ie the cable clamping devices 6 are located directly under the traction sheave 5. If the cabin stops on the bottom floor, they are on the top of the counterweight 7 attached rope clamps 6 directly under the traction sheave 5th
Fig. 2 zeigt eine Seilklemmvorrichtung 6 in ihren Einzelheiten, wobei die Seile 3 zur besseren Übersichtlichkeit nur abschnittweise eingezeichnet sind. Quer zur Seilrichtung, die in Fig. 2 senkrecht zur Blattebene verläuft, liegt eine zylindrische Haltetrommel 10, die mit abgewinkelten Halteblechen 11 unverschieblich und nicht drehbar, hier beispielhaft am Gegengewicht 7, angeschraubt ist. Über die ganze Länge der Haltetrommel erstrecken sich drei nebeneinanderliegende Seilnuten 12, die als schraubenlinienförmige Spiralnuten im gleichen Windungssinn ausgebildet sind. Dies vereinfacht die Fertigung. Von einem Ablaufbereich 13 in der Mitte der Haltetrommel 10 her zu deren beiden Enden hin ist jeweils eine Seilgruppe 14 zu je drei Seilen 3 auf die Seilnuten 12 aufgewickelt. Die beiden Seilgruppen 14 laufen daher beabstandet voneinander von gegenüberliegenden Seiten der Haltetrommel 10 ab. Quer zur Achse der Haltetrommel 10 gesehen liegen die Seile 3 jedoch unmittelbar nebeneinander, so wie sie auf die Treibscheibe mit sechs nebeneinanderliegenden Rillen auflaufen.FIG. 2 shows a detail of a rope clamping device 6, the ropes 3 being drawn only in sections for better clarity. Transversely to the direction of the cable, which runs perpendicular to the plane of the sheet in FIG. 2, there is a cylindrical holding drum 10 which is screwed with angled holding plates 11 so that it cannot move and cannot be rotated, for example here on the counterweight 7. Three adjacent cable grooves 12, which are designed as helical spiral grooves in the same winding direction, extend over the entire length of the holding drum. This simplifies production. A rope group 14 with three ropes 3 each is wound onto the rope grooves 12 from a run-off area 13 in the middle of the holding drum 10 towards its two ends. The two cable groups 14 therefore run at a distance from one another from opposite sides of the holding drum 10. Seen across the axis of the holding drum 10, however, the ropes 3 lie directly next to one another, as they run onto the traction sheave with six adjacent grooves.
Die Nutbreite der Seilnuten 12 entspricht in der Mitte der Haltetrommel 10 am Eintritt bzw. Ablauf der Seile 3 dem Seildurchmesser. Dadurch wird eine tragkraftmindernde seitliche Pressung des Seils 3 vermieden. Vom Eintritt der belasteten Seile her werden die Seilnuten 12 in ihrem Querschnitt fortlaufend enger, so dass das Seil mit abnehmender Zugbelastung allmählich zunehmend seitlich geklemmt wird. In der Zeichnung ist die kontinuierliche Querschnittsverminderung aus Vereinfachungsgründen als sprunghafte Änderung gezeichnet. Die unbelasteten Seilenden werden von Klemmbügeln 15 in den Seilnuten 12 fixiert, die in die Stirnflächen eingehängt und nach dem ersten gewindeartigen Nutgang 16 aller Seilnuten 12 an der Haltetrommel 10 festgeschraubt ist. Die Klemmbügel 15 sind durch möglichst grossflächig lose anliegende Sicherungsbügel 17 verlängert, die sich in Achsrichtung der Haltetrommel 10 erstrecken und ohne Anpressung quer über die Seile 3 verlaufen. Sie verhindern beim Entlasten ein Herausfallen der schlaffen Seile 3 aus den Seilnuten 12.The groove width of the rope grooves 12 corresponds to the rope diameter in the middle of the holding drum 10 at the entrance or exit of the ropes 3. A lateral pressure of the cable 3 which reduces the load capacity is thereby avoided. From the entry of the loaded ropes, the rope grooves 12 become narrower in their cross-section, so that the rope is gradually clamped sideways as the tensile load decreases. In the drawing, the continuous reduction in cross-section is shown as an abrupt change for reasons of simplification. The unloaded rope ends are fixed by clamping brackets 15 in the rope grooves 12, which are hooked into the end faces and are screwed onto the holding drum 10 after the first thread-like groove 16 of all rope grooves 12. The clamping brackets 15 are by securing brackets lying loosely as far as possible 17 extended, which extend in the axial direction of the holding drum 10 and run across the ropes 3 without pressure. When relieved, they prevent the slack ropes 3 from falling out of the rope grooves 12.
Im Ausführungsbeispiel weist die Haltetrommel 3½ nutzbare Nutgänge 16 auf. Je nach Grösse der Last und Reibungsverhältnissen können auch mehr oder weniger Nutgänge vorgesehen werden. Das Ausführungsbeispiel lässt erkennen, dass für einfache Aufzüge mit nur zwei Seilen bereits eine einzige Spiralnut ausreichen würde, die von beiden Enden her mit je einem Seil bewickelt ist.In the exemplary embodiment, the holding drum 3½ usable groove passages 16. Depending on the size of the load and the friction conditions, more or less grooving can be provided. The embodiment shows that for simple lifts with only two ropes a single spiral groove would suffice, which is wound from both ends with one rope each.
Die in einem Seil 3 wirksame Zugkraft wird sukzessive über Reibung in der zugeordneten Seilnut 12 auf die Haltetrommel 10 übertragen. Im weiteren Verlauf der enger werdenden Seilnut 12 wird das Kunstfaserseil 3 zunehmend seitlich geklemmt. Die dabei allmählich mit zunehmender Abnahme der Zugkraft in der Haltetrommel 10 ansteigenden Querkräfte bleiben örtlich so gering, dass die ursprüngliche Zugfestigkeit des Seils 3 nicht gemindert wird.The tensile force effective in a rope 3 is successively transmitted to the holding drum 10 via friction in the associated rope groove 12. In the further course of the narrowing rope groove 12, the synthetic fiber rope 3 is increasingly clamped laterally. The transverse forces that gradually increase as the tensile force decreases in the holding drum 10 remain locally so low that the original tensile strength of the rope 3 is not reduced.
Bei durch die Zugbeanspruchung verursachter Dehnung eines Seils 3 kann dieses leicht nachgespannt werden, indem es von der Haltetrommel 10 zumindest teilweise abgewickelt und anschliessend mit verkürzter Seillänge wieder aufgewickelt wird. Werkzeuge werden für diesen Vorgang nicht benötigt. Ein überstehendes Seilende wird einfach abgeschnitten.If a rope 3 is stretched as a result of the tensile stress, it can be easily re-tensioned by at least partially unwinding it from the holding drum 10 and then winding it again with a shortened rope length. Tools are not required for this process. A protruding end of the rope is simply cut off.
Im zweiten Ausführungsbeispiel nach Fig. 3 besteht die Seilklemmvorrichtung 6' aus nur einer Haltetrommel 10', die jeweils vier nebeneinderliegende spiralförmige Seilnuten 12' auf jeder Trommelhälfte hat. Die beiden Vierergruppen haben entgegengesetzten Gewindesinn, sodass die Seile 3 allesamt in einer Linie direkt nebeneinanderliegend von der Haltetrommel 10' ablaufen und mit gleichbleibendem Abstand auf die mit dem Motor 4 verbundene Treibscheibe 5 auflaufen. Die Seile 3 sind wiederum mit Klemmbügeln 15 fixiert und mit Sicherungsbügeln 17 gesichert.In the second exemplary embodiment according to FIG. 3, the rope clamping device 6 'consists of only one holding drum 10', which has four adjacent spiral rope grooves 12 'on each half of the drum. The two groups of four have opposite sense of thread, so that the ropes 3 all run in a line directly adjacent to one another from the holding drum 10 ′ and run onto the traction sheave 5 connected to the motor 4 at a constant distance. The ropes 3 are again fixed with clamps 15 and secured with safety clips 17.
Das dritte Ausführungsbeispiel zeigt, wie bei Anordung zweier oder vierer Haltetrommeln 10'' praktisch beliebig viele Seile 3 unmittelbar nebeneinander von der Seilklemmvorrichtung 6 ablaufen können, ohne die Haltetrommeln 10'' zu lange werden zu lassen. Bei der Seilklemmvorrichtung 6'' gemäss Fig. 4 sind jeweils zwei Haltetrommeln 10'' gleichachsig hintereinander angeordnet und zwei solcher Paare nebeneinander. Auf jede Haltetrommel 10'' sind je drei, insgesamt also zwölf Seile 3 aufgewickelt. Gleichachsig angeordnete Haltetrommeln 10'' weisen spiralförmige Seilnuten 12'' mit jeweils entgegengesetztem Gewindesinn auf, die Seile 3 sind in gleicher Wickelrichtung aufgewickelt, so dass sie jeweils an die einander abgewandten Enden der Haltetrommeln 10'' zustreben. Nebeneinander angeordnete Haltetrommeln 10'' weisen ebenfalls Seilnuten 12'' mit entgegengesetztem Gewindesinn auf, hierbei ist aber auch die Wickelrichtung der Seile 3 entgegengesetzt. Das führt dazu dass, die Ablaufbereiche 13'' der Seilnuten 12'' aller Haltetrommeln 10'' einander zugewandt sind. Damit laufen alle Seile 3 direkt nebeneinander und auf etwa der gleichen Linie ab.The third exemplary embodiment shows how, with the arrangement of two or four holding drums 10 ″, practically any number of ropes 3 can run directly next to one another from the rope clamping device 6 without making the holding drums 10 ″ become too long. In the case of the rope clamping device 6 ″ according to FIG. 4, two holding drums 10 ″ are arranged one behind the other on the same axis and two such pairs are arranged side by side. On each holding drum 10 '' three, a total of twelve ropes 3 are wound. Holding drums 10 ″ arranged at the same axis have spiral rope grooves 12 ″ each with opposite thread sense, the ropes 3 are wound in the same winding direction, so that they strive towards the opposite ends of the holding drums 10 ″. Holding drums 10 ″ arranged next to one another likewise have cable grooves 12 ″ with an opposite thread sense, but here the winding direction of the cables 3 is also opposite. The result is that the drainage areas 13 ″ of the cable grooves 12 ″ of all holding drums 10 ″ face each other. This means that all ropes 3 run directly next to each other and on approximately the same line.
Die einzelnen Haltetrommeln 10'' können bei Bedarf sehr dünn ausgeführt werden, da der mögliche Krümmungsradius eines Kunststoffseils 3 je nach Steifigkeit nur das ein- bis sechsfache des Seildurchmessers beträgt. Damit kann die Seilklemmvorrichtung 6 individuell an die Abmessungen bzw. Platzverhältnisse bei Gegengewicht und Kabine angepasst werden.If required, the individual holding drums 10 ″ can be made very thin, since the possible radius of curvature of a plastic rope 3 is only one to six times the rope diameter, depending on the rigidity. The cable clamping device 6 can thus be individually adapted to the dimensions or space conditions in the case of the counterweight and cabin.
Die Seilklemmvorrichtung 6''' gemäss dem vierten Ausführungsbeispiel weist Spiralnuten (12"') auf, die als ebene, sich um einen Punkt windende Kurven ausgebildet sind. Die Haltetrommeln 10"' sind in diesem Fall flache Scheiben mit in einer Stirnseite eingefrästen, im Querschnitt allmählich enger werdenen Seilnuten 12"'. Diese werden nach Einlegen des Seils 3 mit einem aufgeschraubten flachen Deckel 18 abgedeckt. Anstelle eines Deckels 18 kann auch die nächst anliegende Haltetrommel 10"' treten. Das unbelastete Seilende wird mit einem Klemmbügel 15"' fixiert. Zum leichteren Nachspannen kann das Seilende durch eine zentrale Öffnung 19 in der Haltetrommel 10"' oder eine zentrale Durchbrechung 20 im Deckel 18 hindurchgeführt werden. Die Durchbrechung 20 wird zweckmässig so gross gewählt, dass die Schrauben des Klemmbügels 15"' ohne Abnahme des Deckels 18 zugänglich sind. Dann braucht zum Nachspannen der Deckel 18 nur gelöst, nicht aber ganz abgenommen zu werden.The cable clamping device 6 ″ ″ according to the fourth exemplary embodiment has spiral grooves (12 ″ ″) which are designed as flat curves winding around a point. In this case, the holding drums 10 ″ ″ are flat disks with a milled in one end face in the Cross section gradually narrowing rope grooves 12 "' Inserting the rope 3 covered with a screwed flat cover 18. Instead of a cover 18, the next adjacent holding drum 10 "'can also take place. The unloaded rope end is fixed with a clamping bracket 15"'. For easier re-tensioning, the rope end can be passed through a central opening 19 in the holding drum 10 "'or a central opening 20 in the cover 18. The opening 20 is expediently chosen to be large enough that the screws of the clamping bracket 15"' are removed without removing the cover 18 are accessible. Then the cover 18 only needs to be loosened for retensioning, but not completely removed.
Die Seilklemmvorrichtung 6''' hat den Vorteil einer ausserordentlich schmalen Bauweise, erfordert jedoch in Schachtrichtung eine etwas grössere Bauhöhe als die vorhergehend beschriebenen Lösungen.The rope clamping device 6 '' 'has the advantage of an extraordinarily narrow construction, but requires a somewhat greater height in the shaft direction than the solutions described above.
Die scheibenförmigen Haltetrommeln 10"' lassen sich z.B. wie im dritten Ausführungsbeispiel als Vierergruppe anordnen. Werden mehr als vier Seile benötigt, können mehrere Haltetrommeln 10"' um jeweils eine Rillenbreite der Treibscheibe 5 schräg versetzt nebeneinander angeordnet werden, sodass quer zu den Scheiben gesehen die Seile unmittelbar nebeneinander liegen.The disk-shaped holding drums 10 "'can, for example, be arranged as a group of four, as in the third exemplary embodiment. If more than four ropes are required, a plurality of holding drums 10"' can be arranged next to one another at a slant by one groove width of the traction sheave 5, so that seen transversely to the disks Ropes lie next to each other.
Das fünfte Ausführungsbeispiel gemäss Fig. 6 zeigt eine konstruktiv besonders einfach und kostengünstig aufgebaute Seilklemmvorrichtung 6''''. Die beiden nebeneinanderliegenden Haltetrommeln 10'''' bestehen aus zwei flachen, vorzugsweise einstückig miteinander verbundenen Scheiben 21. Dazwischen befindet sich jeweils eine nach aussen hin sich leicht erweiternde Seilnut 12''''. In diese ist spiralförmig ein Seil 3 aufgewickelt. Die Seilnut 12'''' wird vom Einlauf des Seiles her nach innen zu fortlaufend enger und klemmt nur den inneren Abschnitt des Seils 3 seitlich. Die übereinanderliegenden Seilwindungen üben den grössten Druck auf die innerste Windung aus. Die äusserste, durch die Traglast am meisten beanspruchte Seilwindung wird damit seitlich gar nicht oder nur leicht gepresst.The fifth exemplary embodiment according to FIG. 6 shows a rope clamping device 6 '''' which is particularly simple and inexpensive to construct. The two adjacent holding drums 10 '''' consist of two flat, preferably integrally connected disks 21. In between there is a cable groove 12 '''' which widens slightly towards the outside. A rope 3 is wound spirally in this. The rope groove 12 '''' becomes narrower inwards from the entry of the rope and only clamps the inner portion of the rope 3 laterally. The superimposed rope turns exert the greatest pressure on the innermost turn. The extreme, due to the load on Most of the stressed rope turns are not pressed on the side or only slightly.
Die Haltetrommel 10'''' ist axial auf einen Konus 22 aufgedrückt, der fest mit einem Haltebügel 23 verbunden ist. Zur zuverlässigen Fixierung der Haltetrommel 10'''' ist diese mit Schrauben 24 an dem Haltebügel 23 befestigt. Selbstverständlich können zwei oder beliebig viele Paare von Haltetrommeln 10'''' wie in Fig. 7 schematisch angedeutet jeweils versetzt nebeneinander angeordnet werden.The holding drum 10 '' '' is pressed axially onto a cone 22 which is fixedly connected to a holding bracket 23. For reliable fixing of the holding drum 10 '' '', it is fastened to the holding bracket 23 with screws 24. Of course, two or any number of pairs of holding drums 10 '' '', as indicated schematically in FIG. 7, can each be arranged offset from one another.
Zum Nachspannen des Seils brauchen nur die Schrauben 24 gelöst und die Haltetrommel 10'''' etwas vom Konus 22 abgehoben zu werden. Danach kann die Haltetrommel 10'''' soweit verdreht werden, bis das Seil straff gespannt ist. Dabei wird das Seil 3 weiter auf die Haltetrommel 10'''' aufgewickelt, ohne dass sich der Ablaufpunkt des Seils 3 quer zur Richtung der Treibscheibenrillen verändert.To re-tension the rope, only the screws 24 need to be loosened and the holding drum 10 '' '' lifted slightly from the cone 22. Then the holding drum 10 '' '' can be turned until the rope is taut. The rope 3 is further wound onto the holding drum 10 '' '' without the run-off point of the rope 3 changing transversely to the direction of the traction sheave grooves.
Das über die Funktion des ersten Ausführungsbeispiels gesagte gilt gleichfalls für die folgenden. Selbstverständlich können einzelne Merkmale eines Ausführungsbeispiels, wie z.B. ein- und zweiteilige Haltetrommeln oder die Anordnung der Haltetrommeln zueinander, mit denen anderer Ausführungsbeispiele ausgetauscht werden.
Claims (10)
- Cable-clamping device for synthetic fibre cables, in particular for lift cables (3), which comprises a retaining drum (10) with at least one incised cable groove (12) for the reception of the load-bearing cable (3), characterised thereby that the at least one retaining drum (10) is firmly connected with the cage (2) and/or the counterweight (7) of a lift, that several cable grooves (12), the groove courses (16) of which end or run out one directly beside the other for the run-off of the cables (3), are arranged one beside the other on one or more retaining drums (10) and that the cable grooves (12) become progressively narrower in their cross-section from the entry of the loaded cable.
- Cable-clamping device according to claim 1, characterised thereby, that several retaining drums (10) are arranged in a row or one beside the other, wherein the run-off regions (13) of the cable grooves (12) each time face one the other.
- Cable clamping device according to claim 1 or 2, characterised thereby that the cable groove (12"") accepts several windings of the cable (3) one above the other.
- Cable-clamping device according to one of the claims 1 or 2, characterised thereby that co-axially arranged cable grooves (12) are each time wound with cables (3) to about half the opposite thread sense.
- Cable-clamping device according to one of the preceding claims, characterised thereby that the cables (3) at their unloaded ends (3) are retained in the cable grooves (12) by lateral pressure, in particular by clamping brackets (15).
- Cable-clamping device according to one of the preceding claims, characterised thereby that the cables (3) are secured in the cable grooves (12) against dropping-out by securing brackets (17).
- Cable-clamping device according to one of the preceding claims, characterised thereby that co-axially arranged retaining drums (10") display cable grooves (12") each of respectively opposite hand, wherein the cables (3) are wound on in a winding direction of like sense so that the fastened cable ends each tend to move towards the mutually remote ends of the retaining drums (10").
- Cable-clamping device according to one of the preceding claims, characterised thereby that retaining drums (10") arranged one beside the other display cable grooves (12") of opposite hand, wherein also the winding direction of the cables (3) is opposite.
- Cable-clamping device according to one of the preceding claims, characterised thereby that the cable grooves as spiral grooves (12) are arranged helically on the retaining drums (10).
- Cable-clamping device according to one of the preceding claims 1 to 8, characterised thereby that the cable grooves (12) are formed as planar spiral grooves winding around one point.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH262894 | 1994-08-29 | ||
| CH262894 | 1994-08-29 | ||
| CH2628/94 | 1994-08-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0699618A1 EP0699618A1 (en) | 1996-03-06 |
| EP0699618B1 true EP0699618B1 (en) | 2000-04-05 |
Family
ID=4238041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95112341A Expired - Lifetime EP0699618B1 (en) | 1994-08-29 | 1995-08-05 | Clamping device for synthetic fibre cable |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5855254A (en) |
| EP (1) | EP0699618B1 (en) |
| JP (1) | JP3701059B2 (en) |
| CN (1) | CN1036060C (en) |
| AT (1) | ATE191430T1 (en) |
| CA (1) | CA2154422C (en) |
| DE (1) | DE59508121D1 (en) |
| DK (1) | DK0699618T3 (en) |
| HK (1) | HK1011344A1 (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6401871B2 (en) * | 1998-02-26 | 2002-06-11 | Otis Elevator Company | Tension member for an elevator |
| US6820726B1 (en) | 1998-12-22 | 2004-11-23 | Otis Elevator Company | Traction enhanced controlled pressure flexible flat tension member termination device |
| DE29924760U1 (en) * | 1998-02-26 | 2005-06-23 | Otis Elevator Co., Farmington | Elevator system having drive motor located between elevator car and hoistway side wall |
| US6256841B1 (en) | 1998-12-31 | 2001-07-10 | Otis Elevator Company | Wedge clamp type termination for elevator tension member |
| US6061879A (en) * | 1998-12-23 | 2000-05-16 | Otis Elevator Company | Epoxy type termination for flexible flat termination member |
| US7874404B1 (en) | 1998-09-29 | 2011-01-25 | Otis Elevator Company | Elevator system having drive motor located between elevator car and hoistway sidewall |
| US6513792B1 (en) * | 1999-10-21 | 2003-02-04 | Inventio Ag | Rope deflection and suitable synthetic fiber rope and their use |
| US6484368B1 (en) | 2000-01-11 | 2002-11-26 | Otis Elevator Company | Flexible flat tension member termination device |
| US6695098B1 (en) | 2000-01-21 | 2004-02-24 | Otis Elevator Company | Self-locking wrap termination for tension member |
| KR100508558B1 (en) * | 2000-08-09 | 2005-08-17 | 미쓰비시덴키 가부시키가이샤 | Elevator device |
| US6758309B2 (en) | 2001-12-04 | 2004-07-06 | Otis Elevator Company | Assembly for supporting the end of a load bearing member in an elevator system |
| US7195707B2 (en) * | 2003-02-05 | 2007-03-27 | Ruppel Michael J | Apparatus for determining weight and biomass composition of a trickling filter |
| JP4683863B2 (en) * | 2003-06-19 | 2011-05-18 | インベンテイオ・アクテイエンゲゼルシヤフト | Elevator for load transportation by movable traction means |
| CN101557036B (en) * | 2009-05-21 | 2012-08-22 | 中国电子科技集团公司第五十四研究所 | Manufacturing method of self-reset cable winding device |
| PL2539270T3 (en) * | 2010-02-24 | 2014-04-30 | Dsm Ip Assets Bv | Method for winding and unwinding a synthetic rope on a winch drum |
| GB201306974D0 (en) * | 2013-04-17 | 2013-05-29 | Parkburn Prec Handling Systems Ltd | Load Bearing Apparatus and Method |
| US20150371741A1 (en) * | 2014-06-20 | 2015-12-24 | Henry H. Leggett | Method and apparatus for treating logging cable |
| CN104444889A (en) * | 2014-09-29 | 2015-03-25 | 哈尔滨银桥机械设备有限责任公司 | Slant-groove type intersected winding endless rope winch |
| CN104444766B (en) * | 2014-12-03 | 2016-10-12 | 国家电网公司 | Electric power transformer insulated sleeve hoisting device |
| WO2016100775A1 (en) | 2014-12-19 | 2016-06-23 | Otis Elevator Company | Termination for elevator belt |
| FI127270B (en) | 2015-05-20 | 2018-02-28 | Konecranes Global Oy | Rope drum and method for retracting or releasing a rope under tension |
| US20170198970A1 (en) * | 2016-01-08 | 2017-07-13 | Henry H. Leggett | Method and apparatus for treating logging cable |
| FI127455B (en) * | 2017-05-31 | 2018-06-29 | Konecranes Global Oy | Device and method for fastening the end of a plaited lift cable to a lift device |
| FI128543B (en) * | 2017-12-12 | 2020-07-31 | Konecranes Global Oy | Fastening device for a lift wire of a lifting device |
| CN109292601B (en) * | 2018-12-07 | 2021-05-18 | 王玉可 | Method for replacing steel wire rope of elevator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1436566A (en) * | 1922-02-01 | 1922-11-21 | R H Beaumont Company | Take-up for skip-hoist ropes |
| GB1067687A (en) * | 1964-11-09 | 1967-05-03 | British Hoist And Crane Compan | Clamps for hoist ropes |
| DE3403101C1 (en) | 1984-01-30 | 1985-07-18 | Geroh GmbH Mechanische Systeme, 8551 Waischenfeld | Moving cable clamp |
-
1995
- 1995-07-21 CA CA002154422A patent/CA2154422C/en not_active Expired - Fee Related
- 1995-08-05 DK DK95112341T patent/DK0699618T3/en active
- 1995-08-05 AT AT95112341T patent/ATE191430T1/en not_active IP Right Cessation
- 1995-08-05 EP EP95112341A patent/EP0699618B1/en not_active Expired - Lifetime
- 1995-08-05 DE DE59508121T patent/DE59508121D1/en not_active Expired - Fee Related
- 1995-08-21 US US08/506,140 patent/US5855254A/en not_active Expired - Fee Related
- 1995-08-28 CN CN95116977A patent/CN1036060C/en not_active Expired - Fee Related
- 1995-08-29 JP JP22069095A patent/JP3701059B2/en not_active Expired - Fee Related
-
1998
- 1998-11-26 HK HK98112344A patent/HK1011344A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JP3701059B2 (en) | 2005-09-28 |
| DK0699618T3 (en) | 2000-09-04 |
| CA2154422A1 (en) | 1996-03-01 |
| EP0699618A1 (en) | 1996-03-06 |
| DE59508121D1 (en) | 2000-05-11 |
| JPH0867455A (en) | 1996-03-12 |
| CA2154422C (en) | 2005-05-24 |
| ATE191430T1 (en) | 2000-04-15 |
| HK1011344A1 (en) | 1999-07-09 |
| CN1126171A (en) | 1996-07-10 |
| CN1036060C (en) | 1997-10-08 |
| US5855254A (en) | 1999-01-05 |
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