EP2497741A1 - Sheave - Google Patents

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Publication number
EP2497741A1
EP2497741A1 EP11001926A EP11001926A EP2497741A1 EP 2497741 A1 EP2497741 A1 EP 2497741A1 EP 11001926 A EP11001926 A EP 11001926A EP 11001926 A EP11001926 A EP 11001926A EP 2497741 A1 EP2497741 A1 EP 2497741A1
Authority
EP
European Patent Office
Prior art keywords
wear
pulley
groove bottom
marking
roller
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
EP11001926A
Other languages
German (de)
French (fr)
Other versions
EP2497741B1 (en
Inventor
Harald Weissflog
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.)
C U A HEIDERICH GmbH
C U A HEIDERICH GmbH
Original Assignee
C U A HEIDERICH GmbH
C U A HEIDERICH 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 C U A HEIDERICH GmbH, C U A HEIDERICH GmbH filed Critical C U A HEIDERICH GmbH
Priority to DK11001926.2T priority Critical patent/DK2497741T3/en
Priority to PL11001926T priority patent/PL2497741T3/en
Priority to ES11001926.2T priority patent/ES2470330T3/en
Priority to EP11001926.2A priority patent/EP2497741B1/en
Publication of EP2497741A1 publication Critical patent/EP2497741A1/en
Application granted granted Critical
Publication of EP2497741B1 publication Critical patent/EP2497741B1/en
Priority to SM201400073T priority patent/SMT201400073B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details

Definitions

  • the invention relates to a pulley, comprising a roller body with a roller ring, wherein the roller body has a hub in its center and in the roller ring, a groove for guiding the rope is formed, which has a groove bottom.
  • Pulleys of the type mentioned are known in many ways. They serve to deflect ropes on cranes, excavators, cable cars and the like.
  • the rollers in the groove bottom are subject to wear. Although it is trying to reduce the wear of the pulley and wire rope by the use of lubricants on the wire rope; Nevertheless, the wear can not be completely prevented. Since the wear limits the life of the pulleys, it is necessary to control the wear of the respective pulley. Here, it is only possible to measure the groove depth, ie the distance between the outermost circumference of the roller body and the groove bottom. However, this type of control is complex and also inaccurate, since an exact determination of the wear is hardly possible due to the manufacturing tolerances.
  • the invention aims to remedy this situation.
  • the invention has for its object to provide a pulley, which allows a simple yet reliable control of wear. According to the invention, this object is achieved in that means for indicating the role wear are provided in the groove bottom.
  • a pulley is created in which the control of the wear of the rope groove is possible in a simple manner.
  • the arrangement of the means for indicating wear in the groove base is in the control, the possibility only To examine the means and thereby determine the previously occurring wear.
  • the means for indicating the role wear are formed by at least one blind bore into which a mark is inserted.
  • this type of wear indicator find only mechanical components or mechanical processing of the pulley application. It is thus a very simple and at the same time extremely reliable way of attaching a wear indicator.
  • the marking can be introduced positively, positively or materially into the blind bore.
  • Each of the above-mentioned possibilities of arrangement of the marking represents a reliable method of attachment.
  • the individual types of attachment can be easily integrated into the production process of the pulley.
  • the material of the marking has a lower degree of hardness than the material in the groove bottom.
  • the formation of the mark with a lower degree of hardness ie the use of a softer material, prevents the mark may possibly be subject in the long run less wear than the groove bottom itself, which would lead to a distortion of the indication of wear by the mark. Due to the softer design of the marking is also ensured that no protrusion forms through the wear on the groove bottom and thus a possible damage to the rope.
  • the mark has a different color than the groove bottom.
  • a simple findability of the mark is caused in the groove bottom, whereby the verification of wear is further simplified.
  • the mark on a through hole allows in addition to the created by the inventive marking control of the wear of the pulley and a control of the residual depth until reaching the allowable wear of the pulley.
  • the remaining life of the pulley can be determined using the inventive design in a simple manner.
  • the means for wear indication are formed by a transmitter.
  • a transmitter By using a transmitter, it is possible to perform a non-contact control of wear. On a visual inspection of the wear indicator can thus be omitted, which also facilitates the control.
  • a marking is provided on the circumference of the roller ring in the region of the marking.
  • the marking is used to facilitate finding the mark in case of visual inspection. This is a considerable relief for controlling the depth of wear, in particular due to the lubricants usually present in the groove base.
  • the pulley selected as the embodiment consists of a roller body 1 and a roller ring 2.
  • the roller body 1 has a hub 3 in its center.
  • the hub 3 serves to receive a bearing, with which the pulley is then placed on the arranged on the respective crane or the like shaft.
  • the reel body 1 and the roller ring 2 are made of steel.
  • the roller body 1 has at least one web 5, which form the region between the hub 3 and the roller ring 2.
  • a rope pulley is shown in soupstegiger execution. Consequently, the pulley on two webs 5 and 5 '.
  • the webs 5 are each welded to the hub 3 and the roller ring 2.
  • FIG. 3 is a pulley shown in one-time execution, which is why only one web 5 is present.
  • the web 5 is welded only to the hub 3; the roller ring 2, however, cold rolled in the web 5.
  • a groove 6 for guiding the rope 4 is formed in the roller ring 2.
  • the groove 6 has a groove bottom 7.
  • the groove 6 has a substantially V-shaped configuration, wherein the groove bottom 7 is formed in the form of a radius.
  • the radius of the groove bottom 7 is selected depending on the diameter of the rope used.
  • the depth of the groove 6 and the width of the roller ring 2 are selected in coordination with the respective rope.
  • the groove bottom 7 may additionally be hardened. In cold-rolled steel, it usually has a hardness of approx. 220 to 230 HB.
  • means 8 are provided for indicating the role wear.
  • the means 8 are formed in the embodiment of a blind bore 9, in which a marker 10 is inserted.
  • the marking can be incorporated in a positive, non-positive or cohesive manner.
  • the marker 10 is glued into the blind bore 9.
  • the mark can also be pressed into the blind bore, soldered, welded or the like.
  • the marker 10 has a through hole 11, so that the mark has an annular configuration in the embodiment.
  • a plurality of markings 10 may be provided in the groove bottom 7.
  • the marker 10 is made in the embodiment of brass. It therefore has a lower degree of hardness than the material in the groove bottom 7.
  • the hardness of the marking is in the exemplary embodiment about 70 HB.
  • the marker 10 has a different color than the groove bottom 7 due to the different choice of material.
  • an identification 12 is provided in the region of the marking 10.
  • the marking 12 is formed in the embodiment in a simple manner of two notches. If necessary, the notches can be hammered into the roller ring 2 manually in a simple manner.
  • An intellectual connection of the two markings 12 by a straight line passes through the center of the blind bore 9, so that the measures provided in the groove bottom 7 means 8 for displaying the role wear can be found in a simple manner.
  • the means 8 are formed by a transmitter.
  • a transmitter As a means for indicating wear different configurations of the transmitter are possible.
  • transmitters come into consideration that work without a permanent power supply.
  • so-called RFID transmitters come into consideration.
  • roller wear indicating means 8 makes it possible to determine the exact state of wear of the cable pulley without complex measurements.
  • the mechanical control it is only necessary to locate those locations where the means 8, for example in the form of the marker 10, are located.
  • this is also particularly easy for the case for which lubricant is in the groove bottom 7 and thus the mark 10 is recognizable only when the lubricant is eliminated.
  • a visual inspection of the marker can be done.
  • the control is carried out in that the marker 10 is still present.
  • the wear limit of the pulley is reached. If several markings 10 are provided in the groove bottom 7, they can be provided with different material thicknesses. In this way, the wear can be determined at least in stages. Depending on the visible marks, the remaining life can be determined. When using the marking 10 in the form of a ring, as shown in the figures, it is possible to continuously determine the wear, in which the depth of the hole in the mark 10 is measured. Thus, it can be determined at an early stage during regular checks, how long the pulley can still be used.
  • the differently colored design of the marker 10 offers the possibility of finding the marker 10 even if the groove bottom 7 is heavily contaminated, if no marker 12 is provided on the roll collar 2.
  • the also selected lower wear resistance of the marker 10 due to the lower degree of hardness in relation to the material of the groove bottom 7 also leads to a reliable wear of the marker 10, which is in any case less than the wear of the groove bottom 7.
  • the mark 10th has less wear than the groove bottom 7, which would lead to a faulty inspection result.
  • a pulley is created by the inventive design, which provides a reliable control of wear allows. As a result, the reliability of the pulleys is permanently guaranteed, since the maximum possible wear of the pulley is timely recognizable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)

Abstract

The cable roll is provided with a roller body with a roller ring (2), where the roller body at its center has a hub, and the roller ring has a groove (6) for guiding the cable. A roller wear indicating element (8) is provided at the groove bottom (7).

Description

Die Erfindung betrifft eine Seilrolle, bestehend aus einem Rollenkörper mit einem Rollenkranz, wobei der Rollenkörper in seinem Mittelpunkt eine Nabe aufweist und in dem Rollenkranz eine Rille zur Führung des Seils ausgebildet ist, die einen Rillengrund aufweist.The invention relates to a pulley, comprising a roller body with a roller ring, wherein the roller body has a hub in its center and in the roller ring, a groove for guiding the rope is formed, which has a groove bottom.

Seilrollen der eingangs genannten Art sind in vielfältiger Weise bekannt. Sie dienen der Umlenkung von Seilen an Kränen, Baggern, Seilbahnen und dergleichen.Pulleys of the type mentioned are known in many ways. They serve to deflect ropes on cranes, excavators, cable cars and the like.

Aufgrund der Belastungen der Seilrollen durch die umgelenkten Seile unterliegen die Rollen im Rillengrund einem Verschleiß. Zwar wird versucht, den Verschleiß von Seilrolle und Drahtseil durch den Einsatz von Schmiermitteln am Drahtseil zu reduzieren; dennoch lässt sich der Verschleiß nicht vollständig verhindern. Da der Verschleiß die Lebensdauer der Seilrollen begrenzt, ist es erforderlich, den Verschleiß der jeweiligen Seilrolle zu kontrollieren. Hier besteht lediglich die Möglichkeit, die Rillentiefe, also den Abstand zwischen dem äußersten Umfang des Rollenkörpers und dem Rillengrund, zu messen. Diese Art der Kontrolle ist jedoch aufwändig und zudem ungenau, da aufgrund der Fertigungstoleranzen eine genaue Bestimmung des Verschleißes kaum möglich ist.Due to the loads on the pulleys due to the deflected cables, the rollers in the groove bottom are subject to wear. Although it is trying to reduce the wear of the pulley and wire rope by the use of lubricants on the wire rope; Nevertheless, the wear can not be completely prevented. Since the wear limits the life of the pulleys, it is necessary to control the wear of the respective pulley. Here, it is only possible to measure the groove depth, ie the distance between the outermost circumference of the roller body and the groove bottom. However, this type of control is complex and also inaccurate, since an exact determination of the wear is hardly possible due to the manufacturing tolerances.

Hier will die Erfindung Abhilfe schaffen. Der Erfindung liegt die Aufgabe zugrunde, eine Seilrolle zu schaffen, die eine einfache und zugleich zuverlässige Kontrolle des Verschleißes ermöglicht. Gemäß der Erfindung wird diese Aufgabe dadurch gelöst, dass in dem Rillengrund Mittel zur Anzeige des Rollenverschleißes vorgesehen sind.The invention aims to remedy this situation. The invention has for its object to provide a pulley, which allows a simple yet reliable control of wear. According to the invention, this object is achieved in that means for indicating the role wear are provided in the groove bottom.

Mit der Erfindung ist eine Seilrolle geschaffen, bei der die Kontrolle des Verschleißes der Seilrille in einfacher Weise möglich ist. Durch die Anordnung der Mittel zur Verschleißanzeige im Rillengrund besteht bei der Kontrolle die Möglichkeit, lediglich die Mittel in Augenschein zu nehmen und hierdurch den bisher aufgetretenen Verschleiß zu ermitteln.With the invention, a pulley is created in which the control of the wear of the rope groove is possible in a simple manner. The arrangement of the means for indicating wear in the groove base is in the control, the possibility only To examine the means and thereby determine the previously occurring wear.

In Weiterbildung der Erfindung sind die Mittel zur Anzeige des Rollenverschleißes von mindestens einer Sackbohrung gebildet, in die eine Markierung eingesetzt ist. Bei dieser Art der Verschleißanzeige finden lediglich mechanische Bauteile bzw. eine mechanische Bearbeitung der Seilrolle Anwendung. Es handelt sich somit um eine sehr einfache und zugleich außerordentlich zuverlässige Art der Anbringung einer Verschleißanzeige.In a further development of the invention, the means for indicating the role wear are formed by at least one blind bore into which a mark is inserted. In this type of wear indicator find only mechanical components or mechanical processing of the pulley application. It is thus a very simple and at the same time extremely reliable way of attaching a wear indicator.

Die Markierung kann kraftschlüssig, formschlüssig oder stoffschlüssig in die Sackbohrung eingebracht sein. Jede der genannten Möglichkeiten der Anordnung der Markierung stellt eine zuverlässige Art der Befestigung dar. Je nach Fertigungsablauf lassen sich die einzelnen Arten der Befestigung einfach in den Fertigungsablauf der Seilrolle integrieren.The marking can be introduced positively, positively or materially into the blind bore. Each of the above-mentioned possibilities of arrangement of the marking represents a reliable method of attachment. Depending on the manufacturing process, the individual types of attachment can be easily integrated into the production process of the pulley.

Bevorzugt weist das Material der Markierung einen geringeren Härtegrad auf, als das Material in dem Rillengrund. Die Ausbildung der Markierung mit einem geringeren Härtegrad, also die Verwendung eines weicheren Materials, verhindert, dass die Markierung möglicherweise auf Dauer einem geringeren Verschleiß unterlegen ist, als der Rillengrund selbst, was zu einer Verfälschung der Anzeige des Verschleißes durch die Markierung führen würde. Durch die weichere Ausbildung der Markierung ist zudem gewährleistet, dass sich durch den Verschleiß kein Überstand über den Rillengrund und damit eine mögliche Beschädigung des Seils bildet.Preferably, the material of the marking has a lower degree of hardness than the material in the groove bottom. The formation of the mark with a lower degree of hardness, ie the use of a softer material, prevents the mark may possibly be subject in the long run less wear than the groove bottom itself, which would lead to a distortion of the indication of wear by the mark. Due to the softer design of the marking is also ensured that no protrusion forms through the wear on the groove bottom and thus a possible damage to the rope.

In anderer Ausgestaltung der Erfindung hat die Markierung eine andere Farbe als der Rillengrund. Hierdurch ist eine einfache Auffindbarkeit der Markierung in dem Rillengrund hervorgerufen, wodurch die Überprüfung des Verschleißes zusätzlich vereinfacht ist.In another embodiment of the invention, the mark has a different color than the groove bottom. As a result, a simple findability of the mark is caused in the groove bottom, whereby the verification of wear is further simplified.

Vorteilhaft weißt die Markierung eine Durchgangsbohrung auf. Die Durchgangsbohrung ermöglicht zusätzlich zu der durch die erfindungsgemäße Markierung geschaffenen Kontrolle des Verschleißes der Seilrolle auch eine Kontrolle der Resttiefe bis zum Erreichen der zulässigen Abnutzung der Seilrolle. Somit kann die Restlebensdauer der Seilrolle mit Hilfe der erfindungsgemäßen Ausgestaltung in einfacher Weise bestimmt werden.Advantageously, the mark on a through hole. The through hole allows in addition to the created by the inventive marking control of the wear of the pulley and a control of the residual depth until reaching the allowable wear of the pulley. Thus, the remaining life of the pulley can be determined using the inventive design in a simple manner.

In vorteilhafter Ausgestaltung der Erfindung sind die Mittel zur Verschleißanzeige von einem Sender gebildet. Mit Hilfe der Verwendung eines Senders besteht die Möglichkeit, eine berührungslose Kontrolle des Verschleißes vorzunehmen. Auf eine Inaugenscheinnahme der Verschleißanzeige kann somit verzichtet werden, was die Kontrolle zusätzlich erleichtert.In an advantageous embodiment of the invention, the means for wear indication are formed by a transmitter. By using a transmitter, it is possible to perform a non-contact control of wear. On a visual inspection of the wear indicator can thus be omitted, which also facilitates the control.

Äußerst bevorzugt ist auf dem Umfang des Rollenkranzes im Bereich der Markierung eine Kennzeichnung vorgesehen. Die Kennzeichnung dient zum leichteren Auffinden der Markierung im Falle einer Sichtkontrolle. Dies ist insbesondere aufgrund der im Rillengrund üblicherweise vorhandenen Schmiermittel eine erhebliche Erleichterung zum Kontrollieren der Verschleißtiefe.Most preferably, a marking is provided on the circumference of the roller ring in the region of the marking. The marking is used to facilitate finding the mark in case of visual inspection. This is a considerable relief for controlling the depth of wear, in particular due to the lubricants usually present in the groove base.

Andere Weiterbildungen und Ausgestaltungen der Erfindung sind in den übrigen Unteransprüchen angegeben. Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird nachfolgend im Einzelnen beschrieben. Es zeigen:

Figur 1
die Ansicht einer Seilrolle;
Figur 2
den Schnitt durch eine Seilrolle in einer ersten Ausbildung;
Figur 3
den Schnitt durch eine Seilrolle in einer weiteren Ausbildung;
Figur 4
die mit "A" gekennzeichnete Einzelheit in Figur 1 in vergrößertem Maßstab;
Figur 5
die mit "B" gekennzeichnete Einzelheit in Figur 2 in vergrößertem Maßstab;
Figur 6
die mit "C" gekennzeichnete Einzelheit in Figur 3 in vergrößertem Maßstab;
Figur 7
die abschnittsweise Darstellung der Draufsicht auf den in Figur 5 dargestellten Bereich der Seilrolle;
Figur 8
die perspektivische, abschnittsweise Darstellung der in Figur 1 dar-gestellten Seilrolle.
Other developments and refinements of the invention are specified in the remaining subclaims. An embodiment of the invention is illustrated in the drawings and will be described in detail below. Show it:
FIG. 1
the view of a pulley;
FIG. 2
the section through a pulley in a first training;
FIG. 3
the section through a pulley in a further embodiment;
FIG. 4
the detail marked "A" in FIG. 1 on an enlarged scale;
FIG. 5
the item marked "B" in FIG. 2 on an enlarged scale;
FIG. 6
the item marked "C" in FIG. 3 on an enlarged scale;
FIG. 7
the sectional representation of the top view of the in FIG. 5 illustrated area of the pulley;
FIG. 8
the perspective, sectional representation of in FIG. 1 represented pulley.

Die ais Ausführungsbeispiel gewählte Seilrolle besteht aus einem Rollenkörper 1 und einem Rollenkranz 2. Der Rollenkörper 1 weist in seinem Mittelpunkt eine Nabe 3 auf. Die Nabe 3 dient zur Aufnahme eines Lagers, mit welchem die Seilrolle dann auf die an dem jeweiligen Kran oder dergleichen angeordnete Welle aufgesetzt ist. Der Rollenkörper 1 und der Rollenkranz 2 sind aus Stahl hergestellt.The pulley selected as the embodiment consists of a roller body 1 and a roller ring 2. The roller body 1 has a hub 3 in its center. The hub 3 serves to receive a bearing, with which the pulley is then placed on the arranged on the respective crane or the like shaft. The reel body 1 and the roller ring 2 are made of steel.

Der Rollenkörper 1 weist mindestens einen Steg 5 auf, der den Bereich zwischen der Nabe 3 und dem Rollenkranz 2 bilden. Im Ausführungsbeispiel nach Figur 2 ist eine Seilrolle in zweistegiger Ausführung dargestellt. Folglich weist die Seilrolle zwei Stege 5 und 5' auf. In dieser Ausführung sind die Stege 5 jeweils mit der Nabe 3 und dem Rollenkranz 2 verschweißt. Im Ausführungsbeispiel nach Figur 3 ist eine Seilrolle in einstegiger Ausführung dargestellt, weshalb lediglich ein Steg 5 vorhanden ist. Bei dieser Ausführungsform ist der Steg 5 lediglich mit der Nabe 3 verschweißt; der Rollenkranz 2 ist dagegen kalt in den Steg 5 gewalzt.The roller body 1 has at least one web 5, which form the region between the hub 3 and the roller ring 2. In the embodiment according to FIG. 2 a rope pulley is shown in zweistegiger execution. Consequently, the pulley on two webs 5 and 5 '. In this embodiment, the webs 5 are each welded to the hub 3 and the roller ring 2. In the embodiment according to FIG. 3 is a pulley shown in one-time execution, which is why only one web 5 is present. In this embodiment, the web 5 is welded only to the hub 3; the roller ring 2, however, cold rolled in the web 5.

In dem Rollenkranz 2 ist eine Rille 6 zur Führung des Seils 4 ausgebildet. Die Rille 6 weist einen Rillengrund 7 auf. Die Rille 6 weist eine im Wesentlichen V-förmige Ausbildung auf, wobei der Rillengrund 7 in Form eines Radius ausgebildet ist. Der Radius des Rillengrundes 7 ist in Abhängigkeit von dem Durchmesser des verwendeten Seils gewählt. Ebenso sind die Tiefe der Rille 6 sowie die Breite des Rollenkranzes 2 in Abstimmung mit dem jeweiligen Seil gewählt. Der Rillengrund 7 kann zusätzlich gehärtet sein. In kaltgewalzter Ausführung aus Stahl weist er üblicherweise eine Härte von ca. 220 bis 230 HB auf.In the roller ring 2, a groove 6 for guiding the rope 4 is formed. The groove 6 has a groove bottom 7. The groove 6 has a substantially V-shaped configuration, wherein the groove bottom 7 is formed in the form of a radius. The radius of the groove bottom 7 is selected depending on the diameter of the rope used. Likewise, the depth of the groove 6 and the width of the roller ring 2 are selected in coordination with the respective rope. The groove bottom 7 may additionally be hardened. In cold-rolled steel, it usually has a hardness of approx. 220 to 230 HB.

In dem Rillengrund 7 sind Mittel 8 zur Anzeige des Rollenverschleißes vorgesehen. Die Mittel 8 sind im Ausführungsbeispiel von einer Sackbohrung 9 gebildet, in die eine Markierung 10 eingesetzt ist. Die Markierung kann form-, kraft- oder stoffschlüssig eingebracht sein. Im Ausführungsbeispiel ist die Markierung 10 in die Sackbohrung 9 eingeklebt. In Abwandlung des Ausführungsbeispiels kann die Markierung auch in die Sackbohrung gepresst, gelötet, geschweißt oder dergleichen sein. Die Markierung 10 weist eine Durchgangsbohrung 11 auf, sodass die Markierung im Ausführungsbeispiel eine ringförmige Ausgestaltung hat. In Abwandlung des Ausführungsbeispiels können im Rillengrund 7 auch mehrere Markierungen 10 vorgesehen sein.In the groove bottom 7 means 8 are provided for indicating the role wear. The means 8 are formed in the embodiment of a blind bore 9, in which a marker 10 is inserted. The marking can be incorporated in a positive, non-positive or cohesive manner. In the exemplary embodiment, the marker 10 is glued into the blind bore 9. In a modification of the embodiment, the mark can also be pressed into the blind bore, soldered, welded or the like. The marker 10 has a through hole 11, so that the mark has an annular configuration in the embodiment. In a modification of the embodiment, a plurality of markings 10 may be provided in the groove bottom 7.

Die Markierung 10 ist im Ausführungsbeispiel aus Messing hergestellt. Sie weist daher einen geringeren Härtegrad auf, als das Material in dem Rillengrund 7. Die Härte der Markierung beträgt im Ausführungsbeispiel ca. 70 HB. Zudem hat die Markierung 10 aufgrund der anderen Materialwahl eine andere Farbe als der Rillengrund 7.The marker 10 is made in the embodiment of brass. It therefore has a lower degree of hardness than the material in the groove bottom 7. The hardness of the marking is in the exemplary embodiment about 70 HB. In addition, the marker 10 has a different color than the groove bottom 7 due to the different choice of material.

Auf dem Umfang des Rollenkranzes 2 ist im Bereich der Markierung 10 eine Kennzeichnung 12 vorgesehen. Die Kennzeichnung 12 ist im Ausführungsbeispiel in einfacher Weise von zwei Kerben gebildet. Die Kerben können in einfacher Weise gegebenenfalls manuell in den Rollenkranz 2 eingeschlagen werden. Eine gedankliche Verbindung der beiden Kennzeichnungen 12 durch eine Gerade führt durch den Mittelpunkt der Sackbohrung 9, sodass die in dem Rillegrund 7 vorgesehenen Mittel 8 zur Anzeige des Rollenverschleißes in einfacher Weise auffindbar sind.On the circumference of the roller ring 2, an identification 12 is provided in the region of the marking 10. The marking 12 is formed in the embodiment in a simple manner of two notches. If necessary, the notches can be hammered into the roller ring 2 manually in a simple manner. An intellectual connection of the two markings 12 by a straight line passes through the center of the blind bore 9, so that the measures provided in the groove bottom 7 means 8 for displaying the role wear can be found in a simple manner.

In Abwandlung des Ausführungsbeispiels sind die Mittel 8 von einem Sender gebildet. Bei der Verwendung eines Senders als Mittel zur Verschleißanzeige sind verschiedene Ausgestaltungen des Senders möglich. Insbesondere kommen hier Sender in Betracht, die ohne dauerhafte Stromversorgung arbeiten. Hier kommen beispielsweise sogenannte RFID-Sender in Betracht.In a modification of the embodiment, the means 8 are formed by a transmitter. When using a transmitter as a means for indicating wear different configurations of the transmitter are possible. In particular, transmitters come into consideration that work without a permanent power supply. Here, for example, so-called RFID transmitters come into consideration.

Die Verwendung der erfindungsgemäßen Mittel 8 zur Anzeige des Rollenverschleißes ermöglicht es, ohne aufwändige Messungen den genauen VerschleißZustand der Seilrolle zu ermitteln. Bei der mechanischen Kontrolle ist es lediglich erforderlich, diejenigen Stellen, an denen die Mittel 8, beispielsweise in Form der Markierung 10, angeordnet sind, aufzufinden. Mit Hilfe der in dem Rollenkranz 2 vorgesehenen Kennzeichnungen 12 ist dies auch für den Fall besonders einfach möglich, für den sich Schmiermittel im Rillengrund 7 befindet und somit die Markierung 10 erst bei Beseitigung der Schmiermittel erkennbar ist. Nach Auffinden der Markierung 10 kann eine Sichtkontrolle der Markierung erfolgen. In der einfachsten Form, in der die Markierung 10 lediglich als massives Bauteil in die Sackbohrung 9 eingesetzt ist, erfolgt die Kontrolle dadurch, dass die Markierung 10 noch vorhanden ist. Erst bei vollständigem Abtragen der Höhe der Markierung 10 aufgrund der Seilreibung in dem Rillengrund, ist dann erkennbar, dass die Verschleißgrenze der Seilrolle erreicht ist. Sind mehrere Markierungen 10 in dem Rillengrund 7 vorgesehen, können diese mit unterschiedlichen Materialstärken versehen sein. Auf diese Weise lässt sich der Verschleiß zumindest stufenweise ermitteln. In Abhängigkeit von den noch sichtbaren Markierungen lässt sich die noch verbliebene Lebensdauer ermitteln. Bei Verwendung der Markierung 10 in Form eines Rings, wie sie in den Figuren dargestellt ist, besteht die Möglichkeit, den Verschleiß kontinuierlich zu ermitteln, in dem die Tiefe des Lochs in der Markierung 10 ausgemessen wird. Somit kann bei regelmäßigen Kontrollen frühzeitig festgestellt werden, wie lange die Seilrolle noch einsetzbar ist. Darüber hinaus bietet die andersfarbige Ausbildung der Markierung 10 die Möglichkeit, auch bei stark verschmutztem Rillengrund 7 die Markierung 10 aufzufinden, wenn keine Kennzeichnung 12 am Rollenkranz 2 vorgesehen ist. Die außerdem gewählte geringere Verschleißfestigkeit der Markierung 10 aufgrund des geringeren Härtegrades im Verhältnis zum Material des Rillengrundes 7 führt zudem zu einem zuverlässigen Verschleiß der Markierung 10, der in keinem Fall geringer ist als der Verschleiß des Rillengrundes 7. Somit ist ausgeschlossen, dass die Markierung 10 einen geringeren Verschleiß aufweist, als der Rillengrund 7, was zu einem fehlerhaften Kontrollergebnis führen würde. Insgesamt ist durch die erfindungsgemäße Ausgestaltung eine Seilrolle geschaffen, die eine zuverlässige Kontrolle des Verschleißes ermöglicht. Dadurch ist die Betriebssicherheit der Seilrollen dauerhaft gewährleistet, da der maximal mögliche Verschleiß der Seilrolle rechtzeitig erkennbar ist. Zudem kann auf die bisher übliche umständliche Messung der Änderung der Rillentiefe verzichtet werden.The use of the roller wear indicating means 8 according to the invention makes it possible to determine the exact state of wear of the cable pulley without complex measurements. In the mechanical control, it is only necessary to locate those locations where the means 8, for example in the form of the marker 10, are located. With the help of provided in the roller ring 2 markings 12, this is also particularly easy for the case for which lubricant is in the groove bottom 7 and thus the mark 10 is recognizable only when the lubricant is eliminated. After finding the marker 10, a visual inspection of the marker can be done. In the simplest form, in which the marker 10 is inserted only as a solid component in the blind bore 9, the control is carried out in that the marker 10 is still present. Only with complete removal of the height of the marker 10 due to the rope friction in the groove bottom, it is then seen that the wear limit of the pulley is reached. If several markings 10 are provided in the groove bottom 7, they can be provided with different material thicknesses. In this way, the wear can be determined at least in stages. Depending on the visible marks, the remaining life can be determined. When using the marking 10 in the form of a ring, as shown in the figures, it is possible to continuously determine the wear, in which the depth of the hole in the mark 10 is measured. Thus, it can be determined at an early stage during regular checks, how long the pulley can still be used. In addition, the differently colored design of the marker 10 offers the possibility of finding the marker 10 even if the groove bottom 7 is heavily contaminated, if no marker 12 is provided on the roll collar 2. The also selected lower wear resistance of the marker 10 due to the lower degree of hardness in relation to the material of the groove bottom 7 also leads to a reliable wear of the marker 10, which is in any case less than the wear of the groove bottom 7. Thus, it is excluded that the mark 10th has less wear than the groove bottom 7, which would lead to a faulty inspection result. Overall, a pulley is created by the inventive design, which provides a reliable control of wear allows. As a result, the reliability of the pulleys is permanently guaranteed, since the maximum possible wear of the pulley is timely recognizable. In addition, can be dispensed with the hitherto customary cumbersome measurement of the change in the groove depth.

Claims (10)

Seilrolle, bestehend aus einem Rollenkörper (1) mit einem Rollenkranz (2), wobei der Rollenkörper (1) in seinem Mittelpunkt eine Nabe (3) aufweist und in dem Rollenkranz (2) eine Rille (6) zur Führung des Seils ausgebildet ist, die einen Rillengrund (7) aufweist, dadurch gekennzeichnet, dass in dem Rillengrund (7) Mittel (8) zur Anzeige des Rollenverschleißes vorgesehen sind.Pulley, consisting of a roller body (1) with a roller ring (2), wherein the roller body (1) has a hub (3) in its center and in the roller ring (2) is formed a groove (6) for guiding the rope, which has a groove bottom (7), characterized in that in the groove bottom (7) means (8) are provided for indicating the role wear. Seilrolle nach Anspruch 1, dadurch gekennzeichnet, dass die Mittel (8) von mindestens einer Sackbohrung (9) gebildet sind, in die eine Markierung (10) eingesetzt ist.Pulley according to claim 1, characterized in that the means (8) of at least one blind bore (9) are formed, in which a mark (10) is inserted. Seilrolle nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Markierung (10) in die Sackbohrung (9) formschlüssig eingebracht ist.Pulley according to claim 1 or 2, characterized in that the marking (10) in the blind bore (9) is positively inserted. Seilrolle nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Markierung (10) in die Sackbohrung (9) kraftschlüssig eingebracht ist.Pulley according to claim 1 or 2, characterized in that the marking (10) in the blind bore (9) is frictionally introduced. Seilrolle nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Markierung (10) in die Sackbohrung (9) stoffschlüssig eingebracht ist.Pulley according to claim 1 or 2, characterized in that the marking (10) in the blind bore (9) is integrally formed. Seilrolle nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, dass das Material der Markierung (10) einen geringeren Härtegrad aufweist, als das Material in dem Rillengrund (7).Pulley according to one or more of the preceding claims, characterized in that the material of the marking (10) has a lower degree of hardness than the material in the groove bottom (7). Seilrolle nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, dass die Markierung (10) eine andere Farbe hat, als der Rillengrund (7).Pulley according to one or more of the preceding claims, characterized in that the marking (10) has a different color than the groove bottom (7). Seilrolle nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, dass die Markierung (10) eine Durchgangsbohrung (11) aufweist.Pulley according to one or more of the preceding claims, characterized in that the marking (10) has a through hole (11). Seilrolle nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, dass die Mittel (8) von einem Sender gebildet sind.Pulley according to one or more of the preceding claims, characterized in that the means (8) are formed by a transmitter. Seilrolle nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, dass auf dem Umfang des Rollenkranzes (2) im Bereich der Markierung (10) eine Kennzeichnung (12) vorgesehen ist.Pulley according to one or more of the preceding claims, characterized in that an identification (12) is provided on the circumference of the roller collar (2) in the region of the marking (10).
EP11001926.2A 2011-03-09 2011-03-09 Sheave Active EP2497741B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DK11001926.2T DK2497741T3 (en) 2011-03-09 2011-03-09 rope pulley
PL11001926T PL2497741T3 (en) 2011-03-09 2011-03-09 Sheave
ES11001926.2T ES2470330T3 (en) 2011-03-09 2011-03-09 Cable pulley
EP11001926.2A EP2497741B1 (en) 2011-03-09 2011-03-09 Sheave
SM201400073T SMT201400073B (en) 2011-03-09 2014-06-18 Pulley

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EP3130555A1 (en) * 2015-08-12 2017-02-15 KONE Corporation Rope and rope groove monitoring
WO2020212469A1 (en) * 2019-04-17 2020-10-22 C. U. A. Heiderich Gmbh Roller

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Publication number Priority date Publication date Assignee Title
US11492230B2 (en) 2018-08-20 2022-11-08 Otis Elevator Company Sheave liner including wear indicators
US11718501B2 (en) 2020-04-06 2023-08-08 Otis Elevator Company Elevator sheave wear detection

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US4441692A (en) * 1982-04-30 1984-04-10 Wyrepak Industries, Inc. Rubber-lagged sheave
EP0603644A1 (en) * 1992-12-21 1994-06-29 Inventio Ag Brake monitoring for elevator brakes
JP2010159094A (en) * 2009-01-06 2010-07-22 Sumitomo Metal Ind Ltd Sheave and hoisting device

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US4441692A (en) * 1982-04-30 1984-04-10 Wyrepak Industries, Inc. Rubber-lagged sheave
EP0603644A1 (en) * 1992-12-21 1994-06-29 Inventio Ag Brake monitoring for elevator brakes
JP2010159094A (en) * 2009-01-06 2010-07-22 Sumitomo Metal Ind Ltd Sheave and hoisting device

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EP3130555A1 (en) * 2015-08-12 2017-02-15 KONE Corporation Rope and rope groove monitoring
US10377605B2 (en) 2015-08-12 2019-08-13 Kone Corporation Rope and rope groove monitoring
WO2020212469A1 (en) * 2019-04-17 2020-10-22 C. U. A. Heiderich Gmbh Roller

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PL2497741T3 (en) 2014-08-29
SMT201400073B (en) 2014-09-08
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DK2497741T3 (en) 2014-06-30
ES2470330T3 (en) 2014-06-23

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