EP2388227B1 - Crane hook with a hook weight assembly - Google Patents

Crane hook with a hook weight assembly Download PDF

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Publication number
EP2388227B1
EP2388227B1 EP10005295.0A EP10005295A EP2388227B1 EP 2388227 B1 EP2388227 B1 EP 2388227B1 EP 10005295 A EP10005295 A EP 10005295A EP 2388227 B1 EP2388227 B1 EP 2388227B1
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EP
European Patent Office
Prior art keywords
hook
weight body
crane
weight
parts
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EP10005295.0A
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German (de)
French (fr)
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EP2388227A1 (en
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Rotzler GmbH and Co KG
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Rotzler GmbH and Co KG
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Priority to EP10005295.0A priority Critical patent/EP2388227B1/en
Priority to US13/111,255 priority patent/US8763993B2/en
Publication of EP2388227A1 publication Critical patent/EP2388227A1/en
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Publication of EP2388227B1 publication Critical patent/EP2388227B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks

Definitions

  • the invention relates to a crane hook with a hook weight arrangement of the type specified in the preamble of claim 1.
  • the hook weight assembly includes a plurality of plates that together form the hook weight body.
  • the crane rope is guided between the inner plates and thus into the hook weight body.
  • the crane hook is attached to the underside of the hook weight body.
  • the JP 10-139363 describes a crane hook with a hook weight assembly, which connected to the crane rope hook weight body and a fastened thereto Additional weight includes.
  • the crane hook is attached to the underside of the hook weight body.
  • a coupling member which is attached to the crane rope.
  • the present invention has for its object to provide a crane hook with a hook weight assembly of the type mentioned, which is easier to handle and universally applicable.
  • the invention offers the possibility to use the hook weight arrangement in different ways. If the weight of the hook weight body is sufficient for use on a simple train, then this can be used without additional weight. On the other hand, if the weight of the hook weight body is insufficient, then the additional weight is fastened to it and thus the tensile load in the rope is correspondingly increased. In a double train, a deflection of the rope, which has a halving the necessary traction result. In this case, a hook weight assembly of a hook weight body and attached to this additional weight is used, the size of the additional weight can be adjusted to the required tensile load.
  • the hook weight body has a substantially cylindrical portion in the vertical direction.
  • the additional weight is formed from at least two parts. In this way, the individual parts of the additional weight are limited in terms of size and weight. As a result, the handling of the individual parts is facilitated.
  • the additional weight is formed from shell parts that the Hook weight body surrounded annularly. In this way, a uniform weight distribution results based on the longitudinal center axis of the hook weight arrangement.
  • two diametrically arranged gaps are formed between the shell parts of the additional weight, through which the rope is feasible.
  • This arrangement is used in a double train for entry or exit of the rope.
  • the rope is guided over a rope pulley mounted in the hook weight body.
  • the peripheral edge of the pulley projects into the gaps.
  • the shell parts are provided with mutually directed projections on which the shell parts come to rest. At these projections, means are preferably provided for the positive engagement of the shell parts, so that a secure fit is given to the hook weight body.
  • the additional weight or the additional weight forming shell parts are suitably made of a gray cast iron.
  • the parts of the additional weight can be fastened, for example, to the hook weight body by means of screw connections.
  • the holes in the hook weight body have a larger diameter and a sleeve is arranged in the bores, on which a pulley is mounted. For secure positioning of the sleeve, it may be appropriate to provide holders for the sleeve on the holes.
  • a transverse to the longitudinal axis bore is arranged in the hook weight body and used in this a bolt which serves to attach the rope.
  • two flanges for receiving a bolt are arranged on an underside of the hook weight body and on the bolt hangs a bracket on which a hook is attached to a pivot bearing.
  • the slot in the hook weight body is connected to an upper end side by a recess having an extension into which a closure piece is inserted. Between the closure piece and the front side of the hook weight body, an opening for the passage of the rope is formed by a corresponding recess.
  • the hook weight body has a dividing plane in its longitudinal direction, so that the hook weight body consists of two parts, which are preferably approximately the same size.
  • the weight of the hook weight body forming parts is halved and the hook weight body mounted only at the destination for transport and handling at the destination.
  • a hook weight assembly 1 is shown hanging on a rope 2 of a crane, the rope being a simple train.
  • the hook weight arrangement 1 comprises a hook weight body 3, preferably made of gray cast iron and a crane hook 4 connected thereto, which consists of a hook 4 *, a safety catch 5, a pivot bearing 25 and a bracket 24.
  • the hook weight body 3 has a substantially cylindrical portion, in whose Area of the hook weight body 3 has a longitudinally extending slot 6 which penetrates the hook weight body 3 diametrically.
  • the slot 6 is connected via a recess 7 with the upper end face 8 of the hook weight body 3.
  • the recess 7 has to the center of the end face 8 an extension 9 and in the middle of a semicircular recess 10, which together with a semicircular recess 11 at a located in the extension 9 closure piece 12 form a circular opening for the passage of the rope 2.
  • the rope is connected to the hook weight body 3 via a pin 13 inserted transversely through the hook weight body into a corresponding hole, as is known Fig. 2 is apparent.
  • the cable 2 is provided at the end with a ferrule 15 and a Kausche 14, through which the bolt 13 is guided.
  • the bolt 13 is secured by a Klappsplint 16.
  • a further bore 17 is provided in the hook weight body 3, which is provided with a holder 18 for a usable in the bore 17 component.
  • the bore for receiving the bolt 13 and the further bore 17 are located within a substantially rectangular recess 19 on the lateral surface of the hook weight body 3. Such a recess 19 is on the other, in Fig. 1 invisible side also provided.
  • Fig. 2 It can be seen that on an underside 20 of the hook weight body 3, two downwardly directed flanges 21, 21 'are formed, which are transverse to the longitudinal axis of the hook weight body Have 3 extending holes into which a bolt 22 inserted and secured by a Klappsplints 23. This attachment also results Fig. 1 , As Fig. 2 shows, hang the bracket 24 of the crane hook 4 on the pin 22, wherein at the ends of the bracket 24 a the bracket with the hook 4 * connecting pivot bearing 25 is mounted. Incidentally, the reference numerals for like parts with those in Fig. 1 match.
  • the Fig. 3 shows a view of the hook weight assembly 1 in the direction of arrow III in Fig. 2 ,
  • the hook weight body 3 hangs on the rope 2, which enters at the upper end face 8 in this and is formed at the end of a cork 14, which is partially visible through the bore 17.
  • the holder 18 is arranged in the area of the bore 17, the holder 18 is arranged. Underneath the bore 17 is the bolt 13 which is secured by means of the folding pin 16 and which is inserted through the thimble 14 so that the hook weight body 3 hangs on the cable 2.
  • the reference numerals for like parts with those of Fig. 1 and 2 match.
  • a hook weight arrangement 1 * is shown for the double pull of the rope 2, wherein one strand of the rope 2 leads to a winch of the crane and the other strand is fixed to an attachment point of a crane jib or the like.
  • a pulley 30 is used, over which the rope 2 runs.
  • the pulley 30 is rotatably mounted, wherein in Fig. 4 with dashed line a rotation axis D indicated is.
  • An additional weight 26 is attached to the hook weight body 3 in order to increase the tensile force in the cable 2 when the crane hook 4 is unloaded.
  • This additional weight 26 is preferably made of a gray cast iron and is in the form of two mounted on the lateral surface of the hook weight body 3 shell parts 27, 27 ', which are each ring portion-shaped and together also have a substantially cylindrical shape as the hook weight body.
  • the shell parts 27, 27 ' have mutually directed projections 28, 28', where the shell parts come to rest.
  • the same arrangement is diametrically on the in Fig. 4 side facing away from the jacket parts provided.
  • the shell parts 27, 27' each have a distance from each other, so that on each side of a gap 29 is formed, in which the peripheral edge of the pulley 30 protrudes and through which the cable 2 runs.
  • the jacket parts 27, 27 ' are fastened to the hook weight body 3 by a bolt 31 running in the axis of rotation D of the cable pulley 30.
  • a Kippsplint 32 is provided on the front side 8 of the hook weight body 3, the closure piece 12 is inserted, as already to Fig. 1 described.
  • the hook 4 * is fixed with pivot bearing 25 in the same manner as Fig. 2 and 3 described.
  • the Fig. 5 shows the hook weight assembly 1 * according to Fig. 4 in a side view. It is clear that the hook 4 * is attached to the pivot bearing 25 on the bracket 24, in turn, as shown Fig. 2 seen from the one shown there Bolt 22 is worn.
  • the view in Fig. 5 is directed to the shell part 27 ', wherein protrudes above the shell part of the hook weight body. Laterally of the hook weight body 3, the strands of the rope 2 are guided upward from the additional weight 26.
  • the end of the bolt 31 with the Kippsplint 32 is also visible.
  • Fig. 6 is the hook weight assembly 1 * in a view in the direction of arrow VI in Fig. 5 shown during assembly, ie in a state prior to attaching the shell parts 27, 27 'on the hook weight body 3.
  • the shell parts 27, 27' have on the projections 28, 28 'means for positive engagement, in the embodiment, this is a pin 33rd on the projection 28 and a corresponding hole in the projection 28 '.
  • a corresponding arrangement is inversely provided on the projections of the respective other side of the shell parts 27, 27 '.
  • the shell parts 27, 27 ' are applied to the wall of the hook weight body 3, with simultaneous engagement of the pin 33 on the projection 28 in the bore of the projection 28'.
  • the Fig. 7 shows the hook weight assembly 1 * according to Fig. 6 in perspective view. It can be seen that in the in Fig. 1 and 3 shown bore 17 a sleeve 34 is inserted, which is held by the holder 18. The inner diameter the sleeve 34 is dimensioned such that the bolt 31 can be inserted through the sleeve 34. On the sleeve 34, the pulley 30 is mounted. Also shows Fig. 7 in that corresponding bores 35 are arranged in the casing parts 27, 27 ', by means of which the bolt 31 is inserted on the hook weight body 3 for the purpose of fastening the casing parts 27, 27'. Out 6 and 7 It is clear that the hook weight body 3 is equal to that of the Fig.
  • the Fig. 8 shows an alternative embodiment Fig. 4 in which a hook weight body 3 * has in its longitudinal direction a dividing plane T, so that the hook weight body 3 * consists of two parts 3 'and 3 "The two parts 3' and 3" are preferably of equal size.
  • the opposite to the hook weight body 3 in Fig. 4 Only half as heavy parts 3 'and 3 "handle much easier and are joined together at the destination to form the hook weight body 3 * The unloading of the parts of a means of transport and the assembly of the hook weight assembly 1 * is therefore easier and can optionally from a mechanic run alone.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Description

Die Erfindung betrifft einen Kranhaken mit einer Hakengewichtsanordnung der im Oberbegriff des Anspruchs 1 angegebenen Gattung.The invention relates to a crane hook with a hook weight arrangement of the type specified in the preamble of claim 1.

Damit Seile an Kränen auch bei fehlender Last am Kranhaken sicher auf- und abgewickelt werden können, ist eine bestimmte Zuglast im Seil erforderlich. Um die erforderliche Zuglast zu erzeugen, ist eine Hakengewichtsanordnung vorgesehen, durch die das Seil gestreckt wird. Das Hakengewicht beträgt üblicherweise zwei Prozent der Bruchlast des Seils, das sind bei einer Bruchlast von 10 Tonnen 200 Kilogramm Hakengewicht. Bei einem Kranseil mit doppeltem Zug wirkt pro Strang nur das halbe Gewicht, so dass in diesem Fall das Gewicht zu verdoppeln ist. Derartig große Gewichte sind nur mit entsprechenden Maschinengeräten handhabbar, was deren Einsatz erschwert.So that ropes on cranes can be wound up and unwound safely even when there is no load on the crane hook, a certain tensile load in the rope is required. In order to produce the required tensile load, a hook weight arrangement is provided by which the rope is stretched. The hook weight is usually two percent of the breaking load of the rope, which are at a breaking load of 10 tons 200 kilograms hook weight. With a crane rope with double draft, only half the weight per rope is used, so in this case the weight has to be doubled. Such large weights are manageable only with appropriate machinery, making their use difficult.

Aus der US 3,917,334 ist ein Kranhaken bekannt mit einer Hakengewichtsanordnung zur Zugbelastung eines auf einer Seiltrommel an einem Kran auf- oder abwickelbaren Seils. Die Hakengewichtsanordnung umfasst mehrere Platten, die gemeinsam den Hakengewichtskörper bilden. Das Kranseil ist zwischen die inneren Platten und somit in den Hakengewichtskörper geführt. Der Kranhaken ist an der Unterseite des Hakengewichtskörpers befestigt.From the US 3,917,334 is a crane hook known with a hook weight assembly for tensile load on a rope drum on a crane or unwindable rope. The hook weight assembly includes a plurality of plates that together form the hook weight body. The crane rope is guided between the inner plates and thus into the hook weight body. The crane hook is attached to the underside of the hook weight body.

Die JP 10-139363 beschreibt einen Kranhaken mit einer Hakengewichtsanordnung, die einen mit dem Kranseil verbundenen Hakengewichtskörper sowie ein an diesem befestigbares Zusatzgewicht umfasst. Der Kranhaken ist an der Unterseite des Hakengewichtskörpers befestigt. An der Oberseite ragt aus der Hakengewichtsanordnung ein Koppelglied, das am Kranseil befestigt wird.The JP 10-139363 describes a crane hook with a hook weight assembly, which connected to the crane rope hook weight body and a fastened thereto Additional weight includes. The crane hook is attached to the underside of the hook weight body. At the top protrudes from the hook weight assembly, a coupling member which is attached to the crane rope.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Kranhaken mit einer Hakengewichtsanordnung der eingangs genannten Gattung zu schaffen, die einfacher handhabbar und universell einsetzbar ist.The present invention has for its object to provide a crane hook with a hook weight assembly of the type mentioned, which is easier to handle and universally applicable.

Diese Aufgabe wird durch einen Kranhaken mit einer Hakengewichtsanordnung mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a crane hook with a hook weight arrangement with the features of claim 1.

Die Erfindung bietet die Möglichkeit, die Hakengewichtsanordnung auf unterschiedliche Weise zu benutzen. Sofern für die Verwendung an einem einfachen Zug das Gewicht des Hakengewichtskörpers ausreicht, so kann dieser ohne Zusatzgewicht eingesetzt werden. Reicht dagegen das Gewicht des Hakengewichtskörpers nicht aus, so wird an diesem das Zusatzgewicht befestigt und damit die Zugbelastung im Seil entsprechend erhöht. Bei einem doppelten Zug erfolgt eine Umlenkung des Seils, was eine Halbierung der nötigen Zugkraft zur Folge hat. In diesem Fall wird eine Hakengewichtsanordnung aus einem Hakengewichtskörper und an diesem befestigten Zusatzgewicht eingesetzt, wobei die Größe des Zusatzgewichts auf die erforderliche Zugbelastung abgestimmt werden kann.The invention offers the possibility to use the hook weight arrangement in different ways. If the weight of the hook weight body is sufficient for use on a simple train, then this can be used without additional weight. On the other hand, if the weight of the hook weight body is insufficient, then the additional weight is fastened to it and thus the tensile load in the rope is correspondingly increased. In a double train, a deflection of the rope, which has a halving the necessary traction result. In this case, a hook weight assembly of a hook weight body and attached to this additional weight is used, the size of the additional weight can be adjusted to the required tensile load.

Der Hakengewichtskörper weist in vertikaler Richtung einen im Wesentlichen zylindrischen Abschnitt auf. Das Zusatzgewicht wird aus mindestens zwei Teilen gebildet. Auf diese Weise werden die einzelnen Teile des Zusatzgewichts bezüglich der Größe und des Gewichts begrenzt. Dadurch ist die Handhabung der einzelnen Teile erleichtert. Das Zusatzgewicht wird aus Mantelteilen gebildet, die den Hakengewichtskörper ringförmig umgeben. Auf diese Weise ergibt sich eine gleichmäßige Gewichtsverteilung bezogen auf die Längsmittelachse der Hakengewichtsanordnung.The hook weight body has a substantially cylindrical portion in the vertical direction. The additional weight is formed from at least two parts. In this way, the individual parts of the additional weight are limited in terms of size and weight. As a result, the handling of the individual parts is facilitated. The additional weight is formed from shell parts that the Hook weight body surrounded annularly. In this way, a uniform weight distribution results based on the longitudinal center axis of the hook weight arrangement.

In weiterer Ausgestaltung werden zwischen den Mantelteilen des Zusatzgewichts zwei diametral angeordnete Spalte gebildet, durch die das Seil führbar ist. Diese Anordnung dient bei einem doppelten Zug zum Ein- bzw. Austritt des Seils. Das Seil ist über eine in dem Hakengewichtskörper gelagerte Seilrolle geführt. Vorzugsweise ragt der Umfangsrand der Seilrolle in die Spalten. In weiterer Ausgestaltung ist vorgesehen, dass die Mantelteile mit gegeneinander gerichteten Vorsprüngen versehen sind, an denen die Mantelteile zur Anlage kommen. An diesen Vorsprüngen sind vorzugsweise Mittel zum formschlüssigen Ineinandergreifen der Mantelteile vorgesehen, so dass ein sicherer Sitz an dem Hakengewichtskörper gegeben ist.In a further embodiment, two diametrically arranged gaps are formed between the shell parts of the additional weight, through which the rope is feasible. This arrangement is used in a double train for entry or exit of the rope. The rope is guided over a rope pulley mounted in the hook weight body. Preferably, the peripheral edge of the pulley projects into the gaps. In a further embodiment, it is provided that the shell parts are provided with mutually directed projections on which the shell parts come to rest. At these projections, means are preferably provided for the positive engagement of the shell parts, so that a secure fit is given to the hook weight body.

Das Zusatzgewicht bzw. die das Zusatzgewicht bildenden Mantelteile bestehen zweckmäßigerweise aus einem Grauguss. Die Teile des Zusatzgewichts können beispielsweise an dem Hakengewichtskörper mittels Schraubverbindungen befestigt sein. Alternativ hierzu ist es auch möglich, in den Teilen des Zusatzgewichts und in dem Hakengewichtskörper koaxiale Bohrungen vorzusehen und zur Befestigung der Teile einen Bolzen einzusetzen. In weiterer Ausgestaltung wird es als zweckmäßig erachtet, dass die Bohrungen im Hakengewichtskörper einen größeren Durchmesser aufweisen und in den Bohrungen eine Hülse angeordnet ist, auf der eine Seilrolle gelagert ist. Zur sicheren Positionierung der Hülse kann es zweckmäßig sein, an den Bohrungen Halterungen für die Hülse vorzusehen.The additional weight or the additional weight forming shell parts are suitably made of a gray cast iron. The parts of the additional weight can be fastened, for example, to the hook weight body by means of screw connections. Alternatively, it is also possible to provide coaxial bores in the parts of the additional weight and in the hook weight body and to fasten the parts to insert a bolt. In a further embodiment, it is considered expedient that the holes in the hook weight body have a larger diameter and a sleeve is arranged in the bores, on which a pulley is mounted. For secure positioning of the sleeve, it may be appropriate to provide holders for the sleeve on the holes.

In weiterer Ausgestaltung ist in dem Hakengewichtskörper eine quer zur Längsachse verlaufende Bohrung angeordnet und in dieser ein Bolzen eingesetzt, der zur Befestigung des Seils dient. In weiterer Ausgestaltung ist vorgesehen, dass an einer Unterseite des Hakengewichtskörpers zwei Flansche zur Aufnahme eines Bolzens angeordnet sind und an dem Bolzen ein Bügel hängt, an dem ein Haken mit einem Drehlager befestigt ist. Für die Zuführung des Seils bei einem einfachen Zug wird vorgeschlagen, dass der Schlitz im Hakengewichtskörper mit einer oberen Stirnseite durch eine Aussparung verbunden ist, die eine Erweiterung aufweist, in welche ein Verschlussstück einsetzbar ist. Zwischen Verschlussstück und Stirnseite des Hakengewichtskörpers wird durch entsprechende Ausnehmung eine Öffnung zur Durchführung des Seils gebildet. Um das Gewicht der zu handhabenden Teile weiter zu reduzieren, wird es als zweckmäßig angesehen, dass der Hakengewichtskörper in seiner Längsrichtung eine Teilungsebene aufweist, so dass der Hakengewichtskörper aus zwei Teilen besteht, die vorzugsweise etwa gleich groß sind. Damit wird für den Transport und die Handhabung am Bestimmungsort das Gewicht der den Hakengewichtskörper bildenden Teile halbiert und der Hakengewichtskörper erst am Bestimmungsort montiert.In a further embodiment, a transverse to the longitudinal axis bore is arranged in the hook weight body and used in this a bolt which serves to attach the rope. In a further embodiment it is provided that two flanges for receiving a bolt are arranged on an underside of the hook weight body and on the bolt hangs a bracket on which a hook is attached to a pivot bearing. For the supply of the rope in a simple train is proposed that the slot in the hook weight body is connected to an upper end side by a recess having an extension into which a closure piece is inserted. Between the closure piece and the front side of the hook weight body, an opening for the passage of the rope is formed by a corresponding recess. In order to further reduce the weight of the parts to be handled, it is considered appropriate that the hook weight body has a dividing plane in its longitudinal direction, so that the hook weight body consists of two parts, which are preferably approximately the same size. Thus, the weight of the hook weight body forming parts is halved and the hook weight body mounted only at the destination for transport and handling at the destination.

Ausführungsbeispiele der Erfindung sind nachstehend anhand der Zeichnung näher erläutert. In der Zeichnung zeigt:

Fig. 1
eine Hakengewichtsanordnung mit entferntem Zusatzgewicht für einen einfachen Zug in perspektivischer Darstellung,
Fig. 2
die Hakengewichtsanordnung gemäß Fig. 1 in einer seitlichen Ansicht,
Fig. 3
die Anordnung in einer Ansicht in Richtung des Pfeils III in Fig. 2,
Fig. 4
eine perspektivische Ansicht einer Hakengewichtsanordnung mit montiertem Zusatzgewicht an einem doppelten Zug,
Fig. 5
die Anordnung gemäß Fig. 4 in einer seitlichen Ansicht,
Fig. 6
die Hakengewichtsanordnung in einer Ansicht in Richtung des Pfeils VI in Fig. 5 während der Montage,
Fig. 7
die Anordnung gemäß Fig. 6 in perspektivischer Darstellung,
Fig. 8
eine Darstellung gemäß Fig. 4 mit in Längsrichtung geteiltem Hakengewichtskörper.
Embodiments of the invention are explained below with reference to the drawing. In the drawing shows:
Fig. 1
a hook weight assembly with removed additional weight for a simple train in perspective,
Fig. 2
the hook weight arrangement according to Fig. 1 in a side view,
Fig. 3
the arrangement in a view in the direction of arrow III in Fig. 2 .
Fig. 4
a perspective view of a hook weight assembly with additional weight mounted on a double train,
Fig. 5
the arrangement according to Fig. 4 in a side view,
Fig. 6
the hook weight arrangement in a view in the direction of arrow VI in Fig. 5 during assembly,
Fig. 7
the arrangement according to Fig. 6 in perspective,
Fig. 8
a representation according to Fig. 4 with longitudinally split hook weight body.

In Fig. 1 und 2 ist eine Hakengewichtsanordnung 1 an einem Seil 2 eines Krans hängend gezeigt, wobei es sich bei dem Seil um einen einfachen Zug handelt. Die Hakengewichtsanordnung 1 umfasst einen Hakengewichtskörper 3, vorzugsweise aus einem Grauguss und einen mit diesem verbundenen Kranhaken 4, der aus einem Haken 4*, einer Sicherungsfalle 5, einem Drehlager 25 und einem Bügel 24 besteht. Der Hakengewichtskörper 3 weist einen im Wesentlichen zylindrischen Abschnitt auf, in dessen Bereich der Hakengewichtskörper 3 einen in der Längsrichtung verlaufenden Schlitz 6 besitzt, der den Hakengewichtskörper 3 diametral durchdringt. Der Schlitz 6 ist über eine Aussparung 7 mit der oberen Stirnseite 8 des Hakengewichtskörpers 3 verbunden. Die Aussparung 7 weist zur Mitte der Stirnseite 8 eine Erweiterung 9 und in der Mitte eine halbkreisförmige Ausnehmung 10 auf, die gemeinsam mit einer halbkreisförmigen Ausnehmung 11 an einem in der Erweiterung 9 befindlichen Verschlussstück 12 eine kreisförmige Öffnung zum Durchtritt des Seils 2 bilden.In Fig. 1 and 2 a hook weight assembly 1 is shown hanging on a rope 2 of a crane, the rope being a simple train. The hook weight arrangement 1 comprises a hook weight body 3, preferably made of gray cast iron and a crane hook 4 connected thereto, which consists of a hook 4 *, a safety catch 5, a pivot bearing 25 and a bracket 24. The hook weight body 3 has a substantially cylindrical portion, in whose Area of the hook weight body 3 has a longitudinally extending slot 6 which penetrates the hook weight body 3 diametrically. The slot 6 is connected via a recess 7 with the upper end face 8 of the hook weight body 3. The recess 7 has to the center of the end face 8 an extension 9 and in the middle of a semicircular recess 10, which together with a semicircular recess 11 at a located in the extension 9 closure piece 12 form a circular opening for the passage of the rope 2.

Das Seil ist mit dem Hakengewichtskörper 3 über einen quer durch den Hakengewichtskörper in eine entsprechende Bohrung gesteckten Bolzen 13 verbunden, wie dies aus Fig. 2 ersichtlich ist. Das Seil 2 ist am Ende mit einer Pressklemme 15 und einer Kausche 14 versehen, durch die der Bolzen 13 geführt ist. Wie Fig. 1 zeigt, ist der Bolzen 13 durch einen Klappsplint 16 gesichert. Über der den Bolzen 13 aufnehmenden Bohrung ist im Hakengewichtskörper 3 eine weitere Bohrung 17 vorgesehen, die mit einer Halterung 18 für ein in die Bohrung 17 einsetzbares Bauteil versehen ist. Die Bohrung zur Aufnahme des Bolzens 13 und die weitere Bohrung 17 befinden sich innerhalb einer im Wesentlichen rechteckigen Vertiefung 19 an der Mantelfläche des Hakengewichtskörpers 3. Eine solche Vertiefung 19 ist auf der anderen, in Fig. 1 nicht sichtbaren Seite ebenfalls vorgesehen.The rope is connected to the hook weight body 3 via a pin 13 inserted transversely through the hook weight body into a corresponding hole, as is known Fig. 2 is apparent. The cable 2 is provided at the end with a ferrule 15 and a Kausche 14, through which the bolt 13 is guided. As Fig. 1 shows, the bolt 13 is secured by a Klappsplint 16. About the pin 13 receiving bore a further bore 17 is provided in the hook weight body 3, which is provided with a holder 18 for a usable in the bore 17 component. The bore for receiving the bolt 13 and the further bore 17 are located within a substantially rectangular recess 19 on the lateral surface of the hook weight body 3. Such a recess 19 is on the other, in Fig. 1 invisible side also provided.

Aus Fig. 2 ist ersichtlich, dass an einer Unterseite 20 des Hakengewichtskörpers 3 zwei nach unten gerichtete Flansche 21, 21' angeformt sind, die quer zur Längsachse des Hakengewichtskörpers 3 verlaufende Bohrungen aufweisen, in die ein Bolzen 22 gesteckt und mittels eines Klappsplints 23 gesichert ist. Diese Befestigung ergibt sich auch aus Fig. 1. Wie Fig. 2 zeigt, hängt der Bügel 24 des Kranhakens 4 an dem Bolzen 22, wobei an den Enden des Bügels 24 ein den Bügel mit dem Haken 4* verbindendes Drehlager 25 angebracht ist. Im Übrigen stimmen die Bezugszeichen für gleiche Teile mit denjenigen in Fig. 1 überein.Out Fig. 2 It can be seen that on an underside 20 of the hook weight body 3, two downwardly directed flanges 21, 21 'are formed, which are transverse to the longitudinal axis of the hook weight body Have 3 extending holes into which a bolt 22 inserted and secured by a Klappsplints 23. This attachment also results Fig. 1 , As Fig. 2 shows, hang the bracket 24 of the crane hook 4 on the pin 22, wherein at the ends of the bracket 24 a the bracket with the hook 4 * connecting pivot bearing 25 is mounted. Incidentally, the reference numerals for like parts with those in Fig. 1 match.

Die Fig. 3 zeigt eine Ansicht der Hakengewichtsanordnung 1 in Richtung des Pfeils III in Fig. 2. Der Hakengewichtskörper 3 hängt an dem Seil 2, das an der oberen Stirnseite 8 in diesen eintritt und an dessen Ende als Kausche 14 ausgebildet ist, welche teilweise durch die Bohrung 17 erkennbar ist. Im Bereich der Bohrung 17 ist die Halterung 18 angeordnet. Unter der Bohrung 17 befindet sich der mittels Klappsplint 16 gesicherte Bolzen 13, der durch die Kausche 14 gesteckt ist, so dass der Hakengewichtskörper 3 an dem Seil 2 hängt. Im Übrigen stimmen die Bezugszeichen für gleiche Teile mit denjenigen der Fig. 1 und 2 überein.The Fig. 3 shows a view of the hook weight assembly 1 in the direction of arrow III in Fig. 2 , The hook weight body 3 hangs on the rope 2, which enters at the upper end face 8 in this and is formed at the end of a cork 14, which is partially visible through the bore 17. In the area of the bore 17, the holder 18 is arranged. Underneath the bore 17 is the bolt 13 which is secured by means of the folding pin 16 and which is inserted through the thimble 14 so that the hook weight body 3 hangs on the cable 2. Incidentally, the reference numerals for like parts with those of Fig. 1 and 2 match.

In Fig. 4 ist eine Hakengewichtsanordnung 1* für den doppelten Zug des Seils 2 dargestellt, wobei ein Strang des Seils 2 zu einer Seilwinde des Krans führt und der andere Strang an einem Befestigungspunkt eines Kranauslegers oder dgl. festgelegt ist. Für den doppelten Zug des Seils 2 ist in dem Hakengewichtskörper 3, der im Ausführungsbeispiel denjenigen der Fig. 1 bis 3 gleicht, eine Seilrolle 30 eingesetzt, über die das Seil 2 läuft. Die Seilrolle 30 ist drehbar gelagert, wobei in Fig. 4 mit gestrichelter Linie eine Drehachse D angedeutet ist. An dem Hakengewichtskörper 3 ist ein Zusatzgewicht 26 angebracht, um die Zugkraft im Seil 2 bei unbelastetem Kranhaken 4 zu erhöhen. Dieses Zusatzgewicht 26 besteht vorzugsweise aus einem Grauguss und ist in Form von zwei an der Mantelfläche des Hakengewichtskörpers 3 angebrachten Mantelteilen 27, 27' ausgeführt, die jeweils ringabschnittförmig sind und zusammen ebenfalls eine im Wesentlichen zylindrische Form besitzen wie der Hakengewichtskörper 3.In Fig. 4 a hook weight arrangement 1 * is shown for the double pull of the rope 2, wherein one strand of the rope 2 leads to a winch of the crane and the other strand is fixed to an attachment point of a crane jib or the like. For the double train of the rope 2 is in the hook weight body 3, in the embodiment of those of Fig. 1 to 3 is similar, a pulley 30 is used, over which the rope 2 runs. The pulley 30 is rotatably mounted, wherein in Fig. 4 with dashed line a rotation axis D indicated is. An additional weight 26 is attached to the hook weight body 3 in order to increase the tensile force in the cable 2 when the crane hook 4 is unloaded. This additional weight 26 is preferably made of a gray cast iron and is in the form of two mounted on the lateral surface of the hook weight body 3 shell parts 27, 27 ', which are each ring portion-shaped and together also have a substantially cylindrical shape as the hook weight body. 3

Im unteren Bereich besitzen die Mantelteile 27, 27' gegeneinander gerichtete Vorsprünge 28, 28', an denen die Mantelteile zur Anlage kommen. Die gleiche Anordnung ist diametral auf der in Fig. 4 abgewandten Seite der Mantelteile vorgesehen. Über den Vorsprüngen 28, 28' weisen die Mantelteile 27, 27' jeweils einen Abstand zueinander auf, so dass auf jeder Seite ein Spalt 29 gebildet ist, in den der Umfangsrand der Seilrolle 30 ragt und durch den das Seil 2 läuft. Die Mantelteile 27, 27' sind durch einen in der Drehachse D der Seilrolle 30 verlaufenden Bolzen 31 an dem Hakengewichtskörper 3 befestigt. Zur Sicherung des Bolzens 31 ist ein Kippsplint 32 vorgesehen. An der Stirnseite 8 des Hakengewichtskörpers 3 ist das Verschlussstück 12 eingesetzt, wie bereits zu Fig. 1 beschrieben. An der Unterseite des Hakengewichtskörpers 3 ist der Haken 4* mit Drehlager 25 auf die gleiche Weise befestigt, wie zu Fig. 2 und 3 beschrieben.In the lower part of the shell parts 27, 27 'have mutually directed projections 28, 28', where the shell parts come to rest. The same arrangement is diametrically on the in Fig. 4 side facing away from the jacket parts provided. Over the projections 28, 28 ', the shell parts 27, 27' each have a distance from each other, so that on each side of a gap 29 is formed, in which the peripheral edge of the pulley 30 protrudes and through which the cable 2 runs. The jacket parts 27, 27 'are fastened to the hook weight body 3 by a bolt 31 running in the axis of rotation D of the cable pulley 30. To secure the bolt 31 a Kippsplint 32 is provided. On the front side 8 of the hook weight body 3, the closure piece 12 is inserted, as already to Fig. 1 described. At the bottom of the hook weight body 3, the hook 4 * is fixed with pivot bearing 25 in the same manner as Fig. 2 and 3 described.

Die Fig. 5 zeigt die Hakengewichtsanordnung 1* gemäß Fig. 4 in einer seitlichen Ansicht. Daraus wird deutlich, dass der Haken 4* mit dem Drehlager 25 an dem Bügel 24 befestigt ist, der wiederum, wie aus Fig. 2 ersichtlich, von dem dort gezeigten Bolzen 22 getragen wird. Die Ansicht in Fig. 5 ist auf das Mantelteil 27' gerichtet, wobei oben über dem Mantelteil der Hakengewichtskörper herausragt. Seitlich des Hakengewichtskörpers 3 sind die Stränge des Seils 2 nach oben aus dem Zusatzgewicht 26 geführt. Das Ende des Bolzens 31 mit dem Kippsplint 32 ist ebenfalls ersichtlich.The Fig. 5 shows the hook weight assembly 1 * according to Fig. 4 in a side view. It is clear that the hook 4 * is attached to the pivot bearing 25 on the bracket 24, in turn, as shown Fig. 2 seen from the one shown there Bolt 22 is worn. The view in Fig. 5 is directed to the shell part 27 ', wherein protrudes above the shell part of the hook weight body. Laterally of the hook weight body 3, the strands of the rope 2 are guided upward from the additional weight 26. The end of the bolt 31 with the Kippsplint 32 is also visible.

In Fig. 6 ist die Hakengewichtsanordnung 1* in einer Ansicht in Richtung des Pfeils VI in Fig. 5 während der Montage gezeigt, d. h. in einem Zustand vor dem Anbringen der Mantelteile 27, 27' an dem Hakengewichtskörper 3. Die Mantelteile 27, 27' weisen an den Vorsprüngen 28, 28' Mittel zum formschlüssigen Eingriff auf, im Ausführungsbeispiel sind dies ein Zapfen 33 am Vorsprung 28 und eine entsprechende Bohrung im Vorsprung 28'. Eine entsprechende Anordnung ist umgekehrt an den Vorsprüngen der jeweils anderen Seite der Mantelteile 27, 27' vorgesehen. Die Mantelteile 27, 27' werden an die Wandung des Hakengewichtskörpers 3 angelegt, bei gleichzeitigem Ineinandergreifen des Zapfens 33 am Vorsprung 28 in die Bohrung des Vorsprungs 28'. Dann wird der Bolzen 31 eingesteckt, so dass sich dieser durch das Mantelteil 27, den Hakengewichtskörper 3, die Seilrolle 30 und das Mantelteil 27' erstreckt. Dann erfolgt die Sicherung mittels des Klappsplints 32. Im Übrigen stimmen die Bezugszeichen in Fig. 6 für gleiche Teile mit denjenigen der Fig. 4 überein.In Fig. 6 is the hook weight assembly 1 * in a view in the direction of arrow VI in Fig. 5 shown during assembly, ie in a state prior to attaching the shell parts 27, 27 'on the hook weight body 3. The shell parts 27, 27' have on the projections 28, 28 'means for positive engagement, in the embodiment, this is a pin 33rd on the projection 28 and a corresponding hole in the projection 28 '. A corresponding arrangement is inversely provided on the projections of the respective other side of the shell parts 27, 27 '. The shell parts 27, 27 'are applied to the wall of the hook weight body 3, with simultaneous engagement of the pin 33 on the projection 28 in the bore of the projection 28'. Then the bolt 31 is inserted so that it extends through the shell part 27, the hook weight body 3, the pulley 30 and the shell part 27 '. Then the backup is done by means of Klappsplints 32. Incidentally, the reference numerals in Fig. 6 for equal parts with those of Fig. 4 match.

Die Fig. 7 zeigt die Hakengewichtsanordnung 1* gemäß Fig. 6 in perspektivischer Darstellung. Daraus ist ersichtlich, dass in die in Fig. 1 und 3 gezeigte Bohrung 17 eine Hülse 34 eingesetzt ist, die von der Halterung 18 gehalten wird. Der Innendurchmesser der Hülse 34 ist so bemessen, dass durch die Hülse 34 der Bolzen 31 gesteckt werden kann. Auf der Hülse 34 ist die Seilrolle 30 gelagert. Außerdem zeigt Fig. 7, dass in den Mantelteilen 27, 27' entsprechende Bohrungen 35 angeordnet sind, durch die der Bolzen 31 zum Zwecke der Befestigung der Mantelteile 27, 27' an dem Hakengewichtskörper 3 gesteckt wird. Aus Fig. 6 und 7 wird deutlich, dass der Hakengewichtskörper 3 gleich demjenigen der Fig. 1 und 2 ist und lediglich eine Umrüstung vom einfachen zum doppelten Zug des Seils 2 erfolgt. Die Mantelteile 27, 27' können selbstverständlich auch auf andere Weise an dem Hakengewichtskörper 3 befestigt werden, beispielsweise durch übliche Schraubverbindungsmittel oder dergleichen. Gegebenenfalls kann dann auch eine Befestigung des Zusatzgewichts 26 an dem Hakengewichtskörper in der Variante für den einfachen Zug erfolgen, wenn eine höhere Zugkraft im Seil erforderlich sein sollte. Im Übrigen stimmen die Bezugszeichen in Fig. 7 für gleiche Teile mit denjenigen der Fig. 4 bis 6 überein.The Fig. 7 shows the hook weight assembly 1 * according to Fig. 6 in perspective view. It can be seen that in the in Fig. 1 and 3 shown bore 17 a sleeve 34 is inserted, which is held by the holder 18. The inner diameter the sleeve 34 is dimensioned such that the bolt 31 can be inserted through the sleeve 34. On the sleeve 34, the pulley 30 is mounted. Also shows Fig. 7 in that corresponding bores 35 are arranged in the casing parts 27, 27 ', by means of which the bolt 31 is inserted on the hook weight body 3 for the purpose of fastening the casing parts 27, 27'. Out 6 and 7 It is clear that the hook weight body 3 is equal to that of the Fig. 1 and 2 is and only a conversion from simple to double train of the rope 2 takes place. The shell parts 27, 27 'can of course be attached to the hook weight body 3 in other ways, for example, by conventional Schraubverbindungsmittel or the like. Optionally, then attaching the additional weight 26 to the hook weight body in the variant for the simple train, if a higher tensile force in the rope should be required. Incidentally, the reference numerals in Fig. 7 for equal parts with those of 4 to 6 match.

Die Fig. 8 zeigt eine Ausführungsvariante zu Fig. 4, wobei ein Hakengewichtskörper 3* in seiner Längsrichtung eine Teilungsebene T aufweist, so dass der Hakengewichtskörper 3* aus zwei Teilen 3' und 3" besteht. Die beiden Teile 3' und 3" sind vorzugsweise gleich groß. Auf diese Weise lassen sich die gegenüber dem Hakengewichtskörper 3 in Fig. 4 nur halb so schweren Teile 3' bzw. 3" wesentlich leichter handhaben und werden erst beim Bestimmungsort zusammengefügt, um den Hakengewichtskörper 3* zu bilden. Das Abladen der Teile von einem Transportmittel und die Montage der Hakengewichtsanordnung 1* ist daher leichter und kann gegebenenfalls von einem Monteur alleine ausgeführt werden. Selbstverständlich ist der Einsatz des aus zwei Teilen 3', 3" bestehenden Hakengewichtskörpers 3* auch bei einer für den einfachen Zug des Seils ausgerüsteten Hakengewichtsanordnung 1, wie in Fig. 1 bis 3 möglich. Besondere Vorteile bietet die Erfindung durch das beschriebene Baukastenprinzip und den universellen Einsatz mit auf die erforderlichen Zugkräfte im Seil 2 anpassbarem Gewicht der Hakengewichtsanordnung.The Fig. 8 shows an alternative embodiment Fig. 4 in which a hook weight body 3 * has in its longitudinal direction a dividing plane T, so that the hook weight body 3 * consists of two parts 3 'and 3 "The two parts 3' and 3" are preferably of equal size. In this way, the opposite to the hook weight body 3 in Fig. 4 Only half as heavy parts 3 'and 3 "handle much easier and are joined together at the destination to form the hook weight body 3 * The unloading of the parts of a means of transport and the assembly of the hook weight assembly 1 * is therefore easier and can optionally from a mechanic run alone. Of course, the use of the two parts 3 ', 3 "existing hook weight body 3 * is also equipped with an equipped for the simple train of the rope hook weight assembly 1, as in Fig. 1 to 3 possible. Particular advantages of the invention by the modular principle described and the universal use with adaptable to the required tensile forces in the rope 2 weight of the hook weight assembly.

Claims (13)

  1. Crane hook with a hook weight assembly for applying a tensile load to a cable (2) which can be reeled onto and off a cable drum on a crane and which raises or lowers the crane hook (4), wherein the hook weight assembly (1, 1*) comprises a hook weight body (3, 3*) connected to the cable (2) and an auxiliary weight (26) which can be secured thereto, and wherein the crane hook (4) is secured to an underside (20) of the hook weight body (3, 3*), characterised in that the cable (2) is guided into the hook weight body (3, 3*) or through a slot (6) provided therein, and in that the auxiliary weight (26) is formed from at least two parts (27, 27') and the hook weight body (3, 3*) has a substantially cylindrical section in the vertical direction, and the auxiliary weight (26) is formed from casing parts (27, 27') which surround the hook weight body (3, 3*) in an annular arrangement.
  2. Crane hook according to claim 1,
    characterised in that two diametrically arranged gaps (29) through which the cable (2) can be guided are formed between the casing parts (27, 27') of the auxiliary weight (26).
  3. Crane hook according to claim 1 or 2,
    characterised in that the casing parts (27, 27') are provided with oppositely oriented projections (28, 28') with which the casing parts (27, 27') come into contact, means for positive engagement being preferably provided on the projections (28, 28').
  4. Crane hook according to claim 2,
    characterised in that a sheave (30) bearing-mounted in the hook weight body (3, 3*) projects into the gaps (29) with its peripheral edge.
  5. Crane hook according to any of claims 1 to 4,
    characterised in that the auxiliary weight (26) consists of grey cast iron.
  6. Crane hook according to any of claims 1 to 5,
    characterised in that the parts (27, 27') of the auxiliary weight (26) are secured to the hook weight body (3, 3*) by means of screws.
  7. Crane hook according to any of claims 1 to 5,
    characterised in that coaxial bores (17, 35) are provided in the parts (27, 27') of the auxiliary weight (26) and in the hook weight body (3, 3*), and in that a bolt (31) is used for securing the parts.
  8. Crane hook according to claim 7,
    characterised in that the bores (17) in the hook weight body (3, 3*) have a larger diameter, and in that a sleeve (34) on which a sheave (30) is mounted is placed in the bores (17).
  9. Crane hook according to claim 8,
    characterised in that holders (18) for the sleeve (34) are provided on the bores (17).
  10. Crane hook according to any of claims 1 to 3,
    characterised in that a bore (36) extending at right angles to the longitudinal axis is located in the hook weight body (3, 3*), and in that a bolt (13) for securing the cable (2) is installed therein.
  11. Crane hook according to any of claims 1 to 10,
    characterised in that two flanges (21, 21') for the accommodation of a bolt (22) are located on an underside of the hook weight body (3, 3*), and in that a shackle (24) to which a hook (4*) is secured with a pivot bearing (25) is suspended on the bolt (22).
  12. Crane hook according to any of claims 1 to 11,
    characterised in that the slot (6) is connected to an upper end face (8) of the hook weight body (3) by a cut-out (7) which has a widening (9) into which a sealing piece (12) can be installed.
  13. Crane hook according to any of claims 1 to 12,
    characterised in that the hook weight body (3*) has a joint plane (T) in its longitudinal direction, so that the hook weight body (3*) consists of two parts (3', 3 ") of preferably the same size.
EP10005295.0A 2010-05-20 2010-05-20 Crane hook with a hook weight assembly Not-in-force EP2388227B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10005295.0A EP2388227B1 (en) 2010-05-20 2010-05-20 Crane hook with a hook weight assembly
US13/111,255 US8763993B2 (en) 2010-05-20 2011-05-19 Crane hook assembly having a hook weight arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10005295.0A EP2388227B1 (en) 2010-05-20 2010-05-20 Crane hook with a hook weight assembly

Publications (2)

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EP2388227A1 EP2388227A1 (en) 2011-11-23
EP2388227B1 true EP2388227B1 (en) 2015-01-21

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EP (1) EP2388227B1 (en)

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US9162593B2 (en) 2012-07-03 2015-10-20 Kids Ii, Inc. Infant carrier and car safety seat with no-rethread harness adjustment
CN103526949B (en) * 2013-10-23 2016-03-30 广州建筑股份有限公司 A kind of sliding and lifting construction method of attached wall vertical structure
EP2952667B1 (en) * 2014-06-02 2018-07-25 Grupo Antolin-Ingenieria, S.A. Fixing assembly of a window regulator pulley
CN104590988A (en) * 2015-01-28 2015-05-06 邹中霞 Crane hook
NO342099B1 (en) * 2015-11-12 2018-03-26 Subsea Toolpool Nord As Locking device for a hook
US9714725B2 (en) * 2015-11-13 2017-07-25 Omaha Standard, Llc Cable adapter and method
US9964132B2 (en) * 2016-03-22 2018-05-08 Bernard Cole Realty Corporation Quick hook
CN107697798A (en) * 2017-09-28 2018-02-16 江苏众众热能科技有限公司 A kind of metal lift hook
CN113879975B (en) * 2021-10-22 2024-01-26 合肥市春华起重机械有限公司 Double-girder multi-hoisting-point crane and working method thereof
CN114597818A (en) * 2022-03-22 2022-06-07 国网黑龙江省电力有限公司牡丹江供电公司 Distribution network uninterrupted operation is with carrying thing hook

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US8763993B2 (en) 2014-07-01
EP2388227A1 (en) 2011-11-23
US20110285157A1 (en) 2011-11-24

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