EP1544153B1 - Lower pulley block for hoists with a single pulley - Google Patents

Lower pulley block for hoists with a single pulley Download PDF

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Publication number
EP1544153B1
EP1544153B1 EP04029020A EP04029020A EP1544153B1 EP 1544153 B1 EP1544153 B1 EP 1544153B1 EP 04029020 A EP04029020 A EP 04029020A EP 04029020 A EP04029020 A EP 04029020A EP 1544153 B1 EP1544153 B1 EP 1544153B1
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EP
European Patent Office
Prior art keywords
tie
blocks
tie rods
pulley block
another
Prior art date
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Expired - Lifetime
Application number
EP04029020A
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German (de)
French (fr)
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EP1544153A3 (en
EP1544153A2 (en
Inventor
Karl Zacharias
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Demag Cranes and Components GmbH
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Demag Cranes and Components GmbH
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Publication of EP1544153A2 publication Critical patent/EP1544153A2/en
Publication of EP1544153A3 publication Critical patent/EP1544153A3/en
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    • 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
    • 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
    • B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads
    • 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
    • B66D3/046—Openable pulley blocks

Definitions

  • the invention relates to a einrollige lower bottle for hoists with a rotatable about a rotation deflection device for a traction device and a suspension for a load hook, wherein the deflection and the suspension for the load hook are connected to each other via two substantially mutually parallel tie rods.
  • a load suspension device which is provided with two side plates, one of which, the so-called movable plate, can be pivoted about the axis of the roller, which is arranged between the two plates.
  • the roller runs on a bearing located on an axis extending between the outer surfaces of the two plates.
  • the WO 95/10719 discloses a rope bottle according to the preamble of independent claim 1.
  • the present invention seeks to provide a simple structure einrollige lower bottle for lifting equipment.
  • the two tie rods are connected by screw to a longitudinally divided tie rod body.
  • an Achstummelförmiger approach is arranged at the mutually facing sides of the tie rods.
  • the approaches complement each other then advantageously in the screwed together state of the tie rods to an axis for the deflection device.
  • connection of the tie rods to the tie rod body is carried out simply by centrally in the lugs each one extending in the longitudinal direction through hole is arranged, in which a screw is inserted.
  • a further reduction of the components is achieved in that the two tie rods are mirror-symmetrical with respect to their connection plane in the screwed-together state.
  • a receiving space for the complete recording of the suspension for the load hook is formed and the two tie rods at least partially surround the mounted in the receiving space suspension of the load hook. It is also proposed that the two tie rods at least partially surround the suspension of the load hook mounted in the receiving space. According to a practical embodiment of the invention it is provided that the free ends of the two tie rods are aligned to form the receiving space undercuts forming facing each other. The mutually facing free ends of the tie rods close the gap between the tie rods almost and thus form bearing surfaces for the hook hook suspension.
  • the tie rods are formed as metal castings.
  • the approaches for the formation of the axle, the receiving space for the suspension and the passage opening for the deflection can be easily formed.
  • FIG. 1 to FIG. 4 show a einrollige rope bottle for hoists with a rotatable about a rotation axis 1 deflecting device 2 for a traction means, not shown, and with a arranged below the deflection device 2 suspension 3 for a load hook 4, wherein the deflection device 2 and the suspension 3 for the load hook 4 via two in Essentially mutually parallel tie rods 5a, 5b are interconnected.
  • the tie rods 5a, 5b are suspended in the illustrated embodiment in the region of the axis of rotation 1 of the deflection device 2.
  • the deflection device 2 is designed as a pulley for a cable, it is of course also possible to equip the einrollige rope bottle with a sprocket for a chain as traction means.
  • the suspension 3 for the rotatable about a vertical axis 6 hook 4 from a bearing holder 7, designed as an axial ball bearing thrust bearing 8 and a pressure ring 9, which are each arranged in a ring around a shaft 10 of the load hook 4.
  • the undercut is formed at the free end of the shaft 10 for receiving the securing element 11 as a circumferential annular groove 10 a
  • the undercut for receiving the securing element 11 as a taper of the shank cross-section, whereby lower notch stresses than in the Ring groove 10a occur.
  • a receiving space 12 for fully receiving the entire suspension 3 for the load hook 4 is formed.
  • tie rod body 5 is vertically aligned with its longitudinal extent in the operation of the lower bottle.
  • Each of the two longitudinal halves of the tie rod body 5 forming tie rods 5a, 5b are each formed schalenfömig, so that these when assembling the blind hole-shaped and above-described receiving space 12 at the lower end of the tie rod body 5 and in the middle of a transversely to the longitudinal extent of the tie rod body 5 directed through hole 14th limit.
  • This passage opening 14 serves to pass the annular deflection device 2 through the tie rod body 5.
  • this tie rod body 5 is that in the upper region of the adjoining inner sides of the tie rods 5a, 5b each an achsstummelartiger approach 18a, 18b arranged. These two lugs 18a, 18b complement each other in the bolted together state of the tie rods 5a, 5b to an axis 18 with the rotation axis 1 for the rotatable mounting of the deflection 2.
  • the axis 18 thus forms the bearing receptacle for the inner bearing shell of a bearing 17 of the rotatable deflection device 2, whereby the total number of components to be mounted can be further reduced.
  • the two lugs 18a, 18b also limit the passage opening 14 upwards.
  • FIG. 2 shows FIG. 2 in that the lugs 18a, 18b have a through hole 19a, 19b centrally in the direction of the axis of rotation 1.
  • These mutually aligned through holes 19a, 19b serve to receive a first screw 15, to connect the two tie rods 5a, 5b with each other.
  • the two further screw connections 16 are shown in the region of the receiving space 12.
  • tie rods 5a, 5b are retracted in the region of the lugs 18a, 18b on its outer side, so that after screwed connection 15 of the screw head and the nut are recessed with respect to the outer surface of the tie rods 5a, 5b.
  • the screw 15 is then covered to the outside with a cover 20 which lies in a plane with the outside of the tie rods 5a, 5b.
  • the tie rods 5a, 5b are formed as metal castings.
  • the undercuts 13 by the deformed free ends 5c of the tie rods 5 it is also possible to form on the mutually facing inner sides of the tie rods 5 projections on which the suspension 3 rests.
  • Such trained einrollige rope bottles for hoists are characterized by their compact and simple design with low height.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Massaging Devices (AREA)
  • Earth Drilling (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Emergency Lowering Means (AREA)

Abstract

The single line hook block for lifting tackle has a rotatable cable deflection device (2) and a suspension (3) for a load hook (4) which are interconnected by two parallel disposed tie rods (5a,5b). At least one of the tie rods forms a pivot (18) for the cable deflection device. The two tie rods are interconnected by threaded connections to form a longitudinally split tie rod component, with stub axle type extensions (18a,18b) on the facing sides which when the two tie rod sections are screwed together form the pivot for the deflection device.

Description

Die Erfindung betrifft eine einrollige Unterflasche für Hebezeuge mit einer um eine Drehachse drehbaren Umlenkvorrichtung für ein Zugmittel und einer Aufhängung für einen Lasthaken, wobei die Umlenkvorrichtung und die Aufhängung für den Lasthaken über zwei im Wesentlichen parallel zueinander angeordnete Zuganker miteinander verbunden sind.The invention relates to a einrollige lower bottle for hoists with a rotatable about a rotation deflection device for a traction device and a suspension for a load hook, wherein the deflection and the suspension for the load hook are connected to each other via two substantially mutually parallel tie rods.

Einrollige Unterflaschen für Hebezeuge mit Aufhängungen für Lasthaken sind aus der Praxis in den verschiedensten Ausführungsformen bekannt. Aus der DIN 15 411 ist eine einrollige Unterflasche bekannt, bei der der Lasthaken um eine vertikale Achse drehbar an einer Lasthaken-Aufhängung gelagert ist. Die Lasthaken-Aufhängung ist über zwei parallele Zuganker an einer Achse befestigt, auf der die Seilrolle für das Zugmittel gelagert ist. Die eigentliche Lasthaken-Aufhängung besteht bei dieser Ausführungsform aus einem die beiden Zuganker miteinander verbindenden Achsbolzen und einer auf das freie Ende des den Achsbolzen durchragenden Lasthakenschaft aufgeschraubten Mutter. Diese bekannte Bauweise weist relativ viele Bauteile auf.Single-roller bottom bottles for hoists with suspensions for load hooks are known in practice in various embodiments. From DIN 15 411 a einrollige lower bottle is known in which the load hook is mounted rotatably about a vertical axis on a load hook suspension. The load hook suspension is attached via two parallel tie rods on an axle on which the pulley is mounted for the traction means. The actual load hook suspension consists in this embodiment of a two tie rods interconnecting axle and a screwed onto the free end of the axle bolt projecting load hook shaft nut. This known construction has relatively many components.

Aus der DE 36 01 127 C2 ist eine Lastaufhängevorrichtung bekannt, die mit zwei Seitenplatten versehen ist, von denen die eine, die sogenannte bewegliche Platte, um die Achse der Rolle, die zwischen den beiden Platten angeordnet ist, geschwenkt werden kann. Die Rolle läuft auf einem Lager, das sich auf einer Achse befindet, die sich zwischen den Außenflächen der beiden Platten erstreckt.From the DE 36 01 127 C2 a load suspension device is known, which is provided with two side plates, one of which, the so-called movable plate, can be pivoted about the axis of the roller, which is arranged between the two plates. The roller runs on a bearing located on an axis extending between the outer surfaces of the two plates.

Aus der DE 1 093 067 A ist ein entsprechendes Rollengehäuse bekannt, bei dem die Rollenachse in zwei Bohrungen der Gehäusehälften gelagert ist.From the DE 1 093 067 A a corresponding roller housing is known in which the roller axle is mounted in two bores of the housing halves.

Auch die US 2,332,389 offenbart eine Rollenachse, die in den beiden Gehäusehälften der Unterflasche in geeigneten Aufnahmen gelagert ist.Also the US 2,332,389 discloses a roller shaft which is mounted in the two housing halves of the lower block in suitable receptacles.

Auch aus der GB 573,352 , der GB 244,180 und der US 2,649,282 ist es in ähnlicher Weise bekannt, die Seilrolle auf einer Achse zu lagern, die in entsprechenden Bohrungen in den jeweiligen seitlichen Gehäusehälften aufgenommen ist.Also from the GB 573,352 , of the GB 244,180 and the US 2,649,282 Similarly, it is known to support the pulley on an axle which is received in corresponding bores in the respective lateral housing halves.

Die WO-A-95/10719 offenbart eine Seilflasche gemäß dem Oberbegriff des unabhängigen Anspruchs 1.The WO 95/10719 discloses a rope bottle according to the preamble of independent claim 1.

Davon ausgehend liegt der Erfindung die Aufgabe zugrunde, eine einfach aufgebaute einrollige Unterflasche für Hebezeuge zu schaffen.Based on this, the present invention seeks to provide a simple structure einrollige lower bottle for lifting equipment.

Diese Aufgabenstellung wird durch eine einrollige Seilflasche mit den Merkmalen des Anspruches 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen 2 bis 7 angegeben.This problem is solved by a einrollige rope bottle with the features of claim 1. Advantageous embodiments of the invention are specified in the subclaims 2 to 7.

Somit wird bei einer einrolligen Seilflasche für Hebezeuge mit einer um eine Drehachse drehbaren Umlenkvorrichtung für ein Zugmittel und einer Aufhängung für einen Lasthaken, wobei die Umlenkvorrichtung und die Aufhängung für den Lasthaken über zwei im Wesentlichen parallel zueinander angeordnete Zuganker miteinander verbunden sind, eine einfache Bauweise dadurch erreicht, dass mindestens einer der Zuganker eine Achse für die Umlenkvorrichtung bildet. Die Achse ist somit in mindestens einem der Zuganker integriert. Hierdurch kann erstmalig auf die Verwendung einer Achse als gesondertes Bauteil für die Lagerung der Umlenkvorrichtung verzichtet werden. Konstruktion und Montage der Unterflasche werden entsprechend einfacher.Thus, in a single-roller rope bottle for hoists with a rotatable about a rotation deflecting device for a traction device and a suspension for a load hook, wherein the deflection device and the suspension for the load hook are connected to each other via two substantially mutually parallel tie rods, a simple construction thereby achieved that at least one of the tie rods forms an axis for the deflection device. The axle is thus integrated in at least one of the tie rods. As a result, for the first time to dispense with the use of an axle as a separate component for the storage of the deflection. Design and installation of the lower bottle are correspondingly easier.

Es ist vorgesehen, dass die beiden Zuganker über Schraubverbindungen zu einem längs geteilten Zugankerkörper verbunden sind. An den aneinander zugewandten Seiten der Zuganker ist jeweils ein achstummelförmiger Ansatz angeordnet. Die Ansätze ergänzen sich dann vorteilhafter Weise im zusammen geschraubten Zustand der Zuganker zu einer Achse für die Umlenkvorrichtung.It is envisaged that the two tie rods are connected by screw to a longitudinally divided tie rod body. At the mutually facing sides of the tie rods each an Achstummelförmiger approach is arranged. The approaches complement each other then advantageously in the screwed together state of the tie rods to an axis for the deflection device.

Zur Erhöhung der Stabilität der Seilflasche liegen die Ansätze der beiden Zuganker im zusammen geschraubten Zustand der Zuganker mit ihren jeweiligen Endflächen aneinander an.To increase the stability of the rope bottle the approaches of the two tie rods are in the screwed together state of the tie rods with their respective end faces to each other.

Die Verbindung der Zuganker zu dem Zugankerkörper erfolgt einfach dadurch, dass zentral in den Ansätzen jeweils eine sich in deren Längsrichtung erstreckende Durchgangsbohrung angeordnet ist, in die eine Schraubverbindung eingesteckt ist.The connection of the tie rods to the tie rod body is carried out simply by centrally in the lugs each one extending in the longitudinal direction through hole is arranged, in which a screw is inserted.

Eine weitere Reduzierung der Bauteile wird dadurch erreicht, dass die beiden Zuganker in Bezug auf ihre Verbindungsebene im zusammen geschraubten Zustand spiegelsymmetrisch sind.A further reduction of the components is achieved in that the two tie rods are mirror-symmetrical with respect to their connection plane in the screwed-together state.

Gemäß einer Ausführungsform der Erfindung wird vorgeschlagen, dass zwischen den beiden Zugankern ein Aufnahmeraum für die vollständige Aufnahme der Aufhängung für den Lasthaken ausgebildet ist und die beiden Zuganker die in dem Aufnahmeraum gelagerte Aufhängung des Lasthakens zumindest teilweise umgreifen. Auch wird vorgeschlagen, dass die beiden Zuganker die in dem Aufnahmeraum gelagerte Aufhängung des Lasthakens zumindest teilweise umgreifen. Gemäß einer praktischen Ausführungsform der Erfindung ist vorgesehen, dass die freien Enden der beiden Zuganker zur Ausbildung des Aufnahmeraums Hinterschneidungen bildend aufeinander zu weisend ausgerichtet sind. Die aufeinander zu weisenden freien Enden der Zuganker verschließen dabei den Zwischenraum zwischen den Zugankern fast und bilden so Auflageflächen für die Lasthakenaufhängung.According to one embodiment of the invention it is proposed that between the two tie rods a receiving space for the complete recording of the suspension for the load hook is formed and the two tie rods at least partially surround the mounted in the receiving space suspension of the load hook. It is also proposed that the two tie rods at least partially surround the suspension of the load hook mounted in the receiving space. According to a practical embodiment of the invention it is provided that the free ends of the two tie rods are aligned to form the receiving space undercuts forming facing each other. The mutually facing free ends of the tie rods close the gap between the tie rods almost and thus form bearing surfaces for the hook hook suspension.

In bevorzugter Ausgestaltung sind die Zuganker als Metallgussteile ausgebildet. Somit können in einfacher Weise die Ansätze für die Bildung der Achse, der Aufnahmeraum für die Aufhängung und die Durchgangsöffnung für die Umlenkvorrichtung ausgebildet werden.In a preferred embodiment, the tie rods are formed as metal castings. Thus, the approaches for the formation of the axle, the receiving space for the suspension and the passage opening for the deflection can be easily formed.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der zugehörigen Zeichnung, in der ein Ausführungsbeispiel einer erfindungsgemäßen einrolligen Seilflasche für Hebezeuge dargestellt ist. In der Zeichnung zeigt:

Figur 1
eine Seitenansicht einer erfindungsgemäßen einrolligen Unterflasche;
Figur 2
einen Schnitt entlang der Linie II-II gemäß Figur 1;
Figur 3
einen Schnitt entlang der Linie III-III gemäß Figur 1 und
Figur 4
einen Schnitt entlang der Linie IV-IV gemäß Figur 1.
Further features and advantages of the invention will become apparent from the accompanying drawing, in which an embodiment of a monocoque cable bottle according to the invention for lifting equipment is shown. In the drawing shows:
FIG. 1
a side view of a einrolligen lower bottle according to the invention;
FIG. 2
a section along the line II-II according to FIG. 1 ;
FIG. 3
a section along the line III-III according to FIG. 1 and
FIG. 4
a section along the line IV-IV according to FIG. 1 ,

Die Abbildungen Figur 1 bis Figur 4 zeigen eine einrollige Seilflasche für Hebezeuge mit einer um eine Drehachse 1 drehbaren Umlenkvorrichtung 2 für ein nicht dargestelltes Zugmittel sowie mit einer unterhalb der Umlenkvorrichtung 2 angeordneten Aufhängung 3 für einen Lasthaken 4, wobei die Umlenkvorrichtung 2 und die Aufhängung 3 für den Lasthaken 4 über zwei im Wesentlichen parallel zueinander angeordnete Zuganker 5a, 5b miteinander verbunden sind. Die Zuganker 5a, 5b sind bei der dargestellten Ausführungsform im Bereich der Drehachse 1 der Umlenkvorrichtung 2 aufgehängt.The pictures FIG. 1 to FIG. 4 show a einrollige rope bottle for hoists with a rotatable about a rotation axis 1 deflecting device 2 for a traction means, not shown, and with a arranged below the deflection device 2 suspension 3 for a load hook 4, wherein the deflection device 2 and the suspension 3 for the load hook 4 via two in Essentially mutually parallel tie rods 5a, 5b are interconnected. The tie rods 5a, 5b are suspended in the illustrated embodiment in the region of the axis of rotation 1 of the deflection device 2.

Obwohl bei der dargestellten Ausführungsform die Umlenkvorrichtung 2 als Seilrolle für einen Seilzug ausgebildet ist, ist es selbstverständlich auch möglich, die einrollige Seilflasche mit einem Kettenrad für eine Kette als Zugmittel auszustatten.Although in the illustrated embodiment, the deflection device 2 is designed as a pulley for a cable, it is of course also possible to equip the einrollige rope bottle with a sprocket for a chain as traction means.

Wie aus der Figur 2 ersichtlich, besteht die Aufhängung 3 für den um eine vertikale Achse 6 drehbaren Lasthaken 4 aus einer Lageraufnahme 7, einem als Axial-Kugellager ausgebildeten Axiallager 8 sowie einem Druckring 9, die jeweils ringförmig um einen Schaft 10 des Lasthakens 4 angeordnet sind.Like from the FIG. 2 it can be seen, the suspension 3 for the rotatable about a vertical axis 6 hook 4 from a bearing holder 7, designed as an axial ball bearing thrust bearing 8 and a pressure ring 9, which are each arranged in a ring around a shaft 10 of the load hook 4.

Das Festlegen der Aufhängung 3 am Schaft 10 des Lasthakens 4 erfolgt über ein Sicherungselement 11, wie beispielsweise einen Sprengring, das im montierten Zustand einerseits in eine als Ringnut 10a ausgebildete Hinterschneidung am freien Ende des Schaftes 10 eingreift und andererseits in einer Vertiefung 9a des Druckrings 9 angeordnet ist. Diese Bauweise hat den Vorteil, dass sie eine besonders geringe Bauhöhe der Lageranordnung 6 ermöglicht, da das freie Ende des Schaftes 10 nur geringfügig über die Oberkante des Druckrings 9 hinausragt.The fixing of the suspension 3 on the shank 10 of the load hook 4 via a securing element 11, such as a snap ring, which engages in the assembled state on the one hand in an annular groove 10a formed as an undercut at the free end of the shaft 10 and the other in a recess 9a of the pressure ring. 9 is arranged. This design has the advantage that it allows a particularly low overall height of the bearing assembly 6, since the free end of the shaft 10 projects only slightly beyond the upper edge of the pressure ring 9.

Während in der dargestellten Ausführungsform die Hinterschneidung am freien Ende des Schaftes 10 zur Aufnahme des Sicherungselements 11 als umlaufende Ringnut 10a ausgebildet ist, ist es beispielsweise auch möglich, die Hinterschneidung zur Aufnahme des Sicherungselements 11 als Verjüngung des Schaftquerschnitts auszubilden, wodurch geringere Kerbspannungen als bei der Ringnut 10a auftreten.While in the illustrated embodiment, the undercut is formed at the free end of the shaft 10 for receiving the securing element 11 as a circumferential annular groove 10 a, it is also possible, for example, the undercut for receiving the securing element 11 as a taper of the shank cross-section, whereby lower notch stresses than in the Ring groove 10a occur.

Wie weiterhin aus der Figur 2 ersichtlich ist, ist zwischen den beiden Zugankern 5a, 5b ein Aufnahmeraum 12 zur vollständigen Aufnahme der gesamten Aufhängung 3 für den Lasthaken 4 ausgebildet.As continues from the FIG. 2 it can be seen, between the two tie rods 5a, 5b, a receiving space 12 for fully receiving the entire suspension 3 for the load hook 4 is formed.

In Bezug auf die beiden Zuganker 5a, 5b ist den Figuren 1 und 2 weiterhin zu entnehmen, dass diese über Schraubverbindungen 15, 16 zu einem im Wesentlichen quaderförmigen Zugankerkörper 5 miteinander verbunden werden. Der Zugankerkörper 5 ist mit seiner Längserstreckung im Betrieb der Unterflasche vertikal ausgerichtet. Die jeweils die beiden Längshälften des Zugankerkörpers 5 bildenden Zuganker 5a, 5b sind jeweils schalenfömig ausgebildet, so dass diese beim Zusammenfügen den sacklochförmigen sowie vorbeschriebenen Aufnahmeraum 12 am unteren Ende des Zugankerkörpers 5 und auch in dessen Mitte eine quer zur Längserstreckung des Zugankerkörpers 5 gerichtete Durchgangsöffnung 14 begrenzen. Diese Durchgangsöffnung 14 dient zur Durchführung der ringförmigen Umlenkvorrichtung 2 durch den Zugankerkörper 5.With respect to the two tie rods 5a, 5b is the FIGS. 1 and 2 Furthermore, it can be seen that these are connected to one another via screw connections 15, 16 to form a substantially cuboidal tie rod body 5. The tie rod body 5 is vertically aligned with its longitudinal extent in the operation of the lower bottle. Each of the two longitudinal halves of the tie rod body 5 forming tie rods 5a, 5b are each formed schalenfömig, so that these when assembling the blind hole-shaped and above-described receiving space 12 at the lower end of the tie rod body 5 and in the middle of a transversely to the longitudinal extent of the tie rod body 5 directed through hole 14th limit. This passage opening 14 serves to pass the annular deflection device 2 through the tie rod body 5.

Eine weitere Besonderheit dieses Zugankerkörpers 5 ist, dass in dessen oberen Bereich an den aneinander angrenzenden Innenseiten der Zuganker 5a, 5b jeweils ein achsstummelartiger Ansatz 18a, 18b angeordnet. Diese beiden Ansätze 18a, 18b ergänzen sich im miteinander verschraubten Zustand der Zuganker 5a, 5b zu einer Achse 18 mit der Drehachse 1 für die drehbare Lagerung des Umlenkmittels 2. Die Achse 18 bildet somit die Lageraufnahme für die innere Lagerschale eines Lagers 17 der drehbaren Umlenkvorrichtung 2, wodurch die Gesamtzahl der zu montierenden Bauteile weiter reduziert werden kann. Die beiden Ansätze 18a, 18b begrenzen auch die Durchgangsöffnung 14 nach oben hin.Another special feature of this tie rod body 5 is that in the upper region of the adjoining inner sides of the tie rods 5a, 5b each an achsstummelartiger approach 18a, 18b arranged. These two lugs 18a, 18b complement each other in the bolted together state of the tie rods 5a, 5b to an axis 18 with the rotation axis 1 for the rotatable mounting of the deflection 2. The axis 18 thus forms the bearing receptacle for the inner bearing shell of a bearing 17 of the rotatable deflection device 2, whereby the total number of components to be mounted can be further reduced. The two lugs 18a, 18b also limit the passage opening 14 upwards.

Des Weiteren zeigt die Figur 2, dass die Ansätze 18a, 18b zentral in Richtung der Drehachse 1 eine Durchgangsbohrung 19a, 19b aufweisen. Diese zueinander fluchtend ausgerichteten Durchgangsbohrungen 19a, 19b dienen zur Aufnahme einer ersten Schraubverbindung 15, um die beiden Zuganker 5a, 5b miteinander zu verbinden. Wie in Figur 1 gezeigt sind die beiden weiteren Schraubverbindungen 16 im Bereich des Aufnahmeraums 12 angeordnet. Durch die Schraubverbindungen 16 im Bereich des Aufnahmeraums 12 und die Schraubverbindung 15 im Bereich der Achse 18 wird sichergestellt, dass die Zuganker 5 durch die über den Lasthaken 4 übertragenen Zugkräfte nicht auseinander gedrückt werden.Furthermore, the shows FIG. 2 in that the lugs 18a, 18b have a through hole 19a, 19b centrally in the direction of the axis of rotation 1. These mutually aligned through holes 19a, 19b serve to receive a first screw 15, to connect the two tie rods 5a, 5b with each other. As in FIG. 1 The two further screw connections 16 are shown in the region of the receiving space 12. By the screw 16 in the region of the receiving space 12 and the screw 15 in the region of the axis 18 ensures that the tie rods 5 are not pressed apart by the transmitted over the load hook 4 tensile forces.

Außerdem sind die Zuganker 5a, 5b im Bereich der Ansätze 18a, 18b an ihrer Außenseite eingezogen, so dass nach montierter Schraubverbindung 15 der Schraubkopf und die Mutter in Bezug auf die Außenoberfläche der Zuganker 5a, 5b versenkt sind. Die Schraubverbindung 15 wird dann nach außen mit einem Deckel 20 abgedeckt, der in einer Ebene mit der Außenseite der Zuganker 5a, 5b liegt. Auch sind die Zuganker 5a, 5b als Metallgussteile ausgebildet.In addition, the tie rods 5a, 5b are retracted in the region of the lugs 18a, 18b on its outer side, so that after screwed connection 15 of the screw head and the nut are recessed with respect to the outer surface of the tie rods 5a, 5b. The screw 15 is then covered to the outside with a cover 20 which lies in a plane with the outside of the tie rods 5a, 5b. Also, the tie rods 5a, 5b are formed as metal castings.

Im zusammen geschraubten Zustand der Zuganker 5a, 5b liegen diese im Bereich des Ansätze 18a, 18b und im Bereich von Stegen 21a, 21b an den jeweiligen planen Endflächen der Ansätze 18a, 18b und der Stege 21 a, 21 b aneinander an. Die Stege 21 a, 21 b begrenzen den Aufnahmeraum 12 nach oben und trennen somit auch den Aufnahmeraum 12 von der darüber liegenden Durchgangsöffnung 14.In the screwed together state of the tie rods 5a, 5b they are in the region of the lugs 18a, 18b and in the region of webs 21a, 21b to the respective planar end faces of the lugs 18a, 18b and the webs 21 a, 21 b to each other. The webs 21 a, 21 b limit the receiving space 12 upwards and thus also separate the receiving space 12 of the overlying passage opening 14th

Auf Grund der vorbeschriebenen Ausbildung des Zugankerkörpers 5 ist es erstmalig möglich, auf den aus dem Stand der Technik bekannten Achsbolzen für die Umlenkvorrichtung 2 zu verzichten, die nun an den der beiden Zuganker 5a, 5b gelagert ist. Die Ansätze 18a, 18b sind jeweils Bestandteile der Zuganker 5a, 5b. Hierdurch wird ein einfacher Aufbau der Seilflasche erzielt.Due to the above-described design of the tie rod body 5, it is possible for the first time to dispense with the known from the prior art axle for the deflection device 2, which is now mounted on the two tie rods 5a, 5b. The lugs 18a, 18b are each components of the tie rods 5a, 5b. As a result, a simple construction of the rope bottle is achieved.

Um die Aufhängung 3 für den Lasthaken 4 abstützend in dem Aufnahmeraum 12 zu lagern, sind bei der in Figur 2 dargestellten ersten Ausführungsform die freien Enden 5a der Zuganker 5, die Hinterschneidungen 13 bilden, aufeinander zu weisend so ausgerichtet, dass die Zuganker 5 die in dem Aufnahmeraum 12 gelagerte Aufhängung 3 für den Lasthaken 4 zumindest teilweise umgreifen. Alternativ zur Ausbildung der Hinterschneidungen 13 durch die umgeformten freien Enden 5c der Zuganker 5 ist es auch möglich, an den einander zugewandten Innenseiten der Zuganker 5 Vorsprünge anzuformen, auf denen die Aufhängung 3 aufliegt.In order to support the suspension 3 for the load hook 4 in the receiving space 12, are in the in FIG. 2 illustrated first embodiment, the free ends 5a of the tie rods 5, the undercuts 13, pointing towards each other aligned so that the tie rods 5 engage around the mounted in the receiving space 12 suspension 3 for the hook 4 at least partially. Alternatively to the formation of the undercuts 13 by the deformed free ends 5c of the tie rods 5, it is also possible to form on the mutually facing inner sides of the tie rods 5 projections on which the suspension 3 rests.

Solchermaßen ausgebildete einrollige Seilflaschen für Hebezeuge zeichnen sich durch ihre kompakte und einfache Bauweise bei gleichzeitig geringer Bauhöhe aus.Such trained einrollige rope bottles for hoists are characterized by their compact and simple design with low height.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Drehachseaxis of rotation
22
Umlenkvorrichtung/SeilrolleDeflection / pulley
33
Aufhängungsuspension
44
Lasthakenload hook
55
ZugankerkörperZugankerkörper
5a5a
Zugankertie rods
5b5b
Zugankertie rods
5c5c
freies Endefree end
66
Achseaxis
77
Lageraufnahmebearing seat
88th
Axiallagerthrust
99
Druckringpressure ring
9a9a
Vertiefungdeepening
1010
Schaftshaft
10a10a
Ringnutring groove
1111
Sicherungselementfuse element
1212
Aufnahmeraumaccommodation space
1313
Hinterschneidungundercut
1414
DurchgangsöffnungThrough opening
1515
Schraubverbindungscrew
1616
Schraubverbindungscrew
1717
Lagercamp
1818
Achseaxis
18a18a
Ansatzapproach
18b18b
Ansatzapproach
19a19a
DurchgangsbohrungThrough Hole
19b19b
DurchgangsbohrungThrough Hole
2020
Deckelcover
21a21a
Stegweb
21 b21 b
Stegweb

Claims (7)

  1. Single-pulley pulley block having a direction-changing device (2) rotatable about an axis of rotation (1), having a traction means, and having a suspension arrangement (3) and a connecting element, the direction-changing device (2) being fastened to the suspension arrangement (3) by means of two tie-blocks (5a, 5b) arranged substantially parallel to one another, at least one of the tie-blocks (5a, 5b) forming a shaft (18) for the direction-changing device (2), a projection (18a, 18b) in the form of a stub-shaft being arranged on each of the mutually adjacent sides of the tie-blocks (5a, 5b), and the projections (18a, 18b) complementing one another when the tie-blocks (5a, 5b) are in the connected-together state to form a shaft (18) for the direction-changing device (2) and being aligned with one another through the bearing (17), characterised in that the pulley block is the lower block of a hoist, the connecting element is a lifting hook (4) which is suspended in the suspension arrangement (3), and there is arranged centrally in each of the projections (18a, 18b) a through-hole (19a, 19b) which extends in the longitudinal direction of the projections (18a, 18b) and into which a screwed connecting means (15) is inserted to connect the tie-blocks (5a, 5b) to form the tie-block body (5).
  2. Pulley block according to claim 1, characterised in that the two tie-blocks (5a, 5b) are connected by screwed connecting means (15, 16) to form a longitudinally divided tie-block body (5).
  3. Pulley block according to claim 2, characterised in that the projections (18a, 18b) on the two tie-blocks (5a, 5b) rest against one another by their respective end-faces when the tie-blocks (5a, 5b) are in the screwed-together state.
  4. Pulley block according to one of claims 1 to 3, characterised in that in the screwed-together state the two tie-blocks (5a, 5b) are mirror images of one another about the plane in which they are connected.
  5. Pulley block according to one of claims 1 to 4, characterised in that there is formed between the two tie-blocks (5a, 5b) a receiving space (12) to receive the complete suspension arrangement (3) for the lifting hook (4), and when the suspension arrangement (3) for the lifting hook (4) is mounted in the receiving space (12) the two tie-blocks (5) fit at least partly round it.
  6. Pulley block according to claim 5, characterised in that the free ends (5a) of the two tie-blocks (5) are aligned to face towards one another, while forming undercuts (13), to produce the receiving space (12).
  7. Pulley block according to at least one of claims 1 to 6, characterised in that the tie-blocks (5a, 5b) are metal castings.
EP04029020A 2003-12-18 2004-12-08 Lower pulley block for hoists with a single pulley Expired - Lifetime EP1544153B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10359876 2003-12-18
DE10359876A DE10359876B4 (en) 2003-12-18 2003-12-18 Single roll lower hoist for hoists

Publications (3)

Publication Number Publication Date
EP1544153A2 EP1544153A2 (en) 2005-06-22
EP1544153A3 EP1544153A3 (en) 2006-06-07
EP1544153B1 true EP1544153B1 (en) 2008-02-20

Family

ID=34485519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04029020A Expired - Lifetime EP1544153B1 (en) 2003-12-18 2004-12-08 Lower pulley block for hoists with a single pulley

Country Status (6)

Country Link
US (1) US20050218388A1 (en)
EP (1) EP1544153B1 (en)
CN (1) CN1629064B (en)
AT (1) ATE386702T1 (en)
DE (2) DE10359876B4 (en)
ES (1) ES2301921T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101898718B (en) * 2009-05-27 2012-10-10 无锡港盛港口机械有限公司 Sheep eye hook device of crane
CN101898719B (en) * 2009-05-27 2012-10-10 无锡港盛港口机械有限公司 Epsilon-type lifting hook device for crane
DE202011001845U1 (en) * 2011-01-24 2012-04-30 Liebherr-Components Biberach Gmbh Cable drum and pulley for fiber rope drives
CN105197772B (en) * 2014-12-23 2017-05-03 徐州重型机械有限公司 Lifting hook and crane
CN105174037A (en) * 2015-10-21 2015-12-23 无锡港盛重型装备有限公司 Lifting hook mechanism for crane
GB2581984B (en) * 2019-03-06 2022-04-27 Treemagineers Ltd System and apparatus for moving objects

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US691492A (en) * 1901-10-04 1902-01-21 James Byron Roney Pulley-block.
GB244180A (en) * 1924-09-13 1925-12-14 Edward Elias Von Tell Improvements in self-locking leading blocks, and the like
US2206442A (en) * 1939-01-18 1940-07-02 George J Armstrong Snatch block
US2332389A (en) * 1942-03-17 1943-10-19 Columbus Mckinnon Chain Corp Hook block
GB573352A (en) * 1943-12-07 1945-11-16 Norman Cansfield Improvements relating to pulley blocks
US2649282A (en) * 1949-04-02 1953-08-18 Jr Jessee E Fate Snatch block
DE1093067B (en) * 1958-03-12 1960-11-17 Winden Und Maschb Josef Gressb Two-part roller housing with a load hook rotatably mounted on it
US3378233A (en) * 1965-07-19 1968-04-16 George F Mcmurray Roller assembly
US3528645A (en) * 1968-04-18 1970-09-15 Peter O Harken Bearing block
US4390163A (en) * 1981-08-28 1983-06-28 Schaefer Marine, Inc. Marine block
US4614332A (en) * 1985-01-22 1986-09-30 The Crosby Group, Inc. Snatch block with improved hook bolt assembly
WO1995010719A1 (en) * 1993-10-07 1995-04-20 Gert Hans Frederiksen A rope block
CN2377239Y (en) * 1999-06-07 2000-05-10 廖万来 Improved structure of pulley
US6910492B1 (en) * 2002-08-09 2005-06-28 Andrew G. Stuck ATV supported shelter

Also Published As

Publication number Publication date
EP1544153A3 (en) 2006-06-07
DE10359876B4 (en) 2006-12-07
CN1629064A (en) 2005-06-22
DE10359876A1 (en) 2005-07-28
CN1629064B (en) 2010-06-23
DE502004006247D1 (en) 2008-04-03
US20050218388A1 (en) 2005-10-06
ATE386702T1 (en) 2008-03-15
ES2301921T3 (en) 2008-07-01
EP1544153A2 (en) 2005-06-22

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