EP0154159A1 - Loading device for a crane - Google Patents

Loading device for a crane Download PDF

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Publication number
EP0154159A1
EP0154159A1 EP85100991A EP85100991A EP0154159A1 EP 0154159 A1 EP0154159 A1 EP 0154159A1 EP 85100991 A EP85100991 A EP 85100991A EP 85100991 A EP85100991 A EP 85100991A EP 0154159 A1 EP0154159 A1 EP 0154159A1
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EP
European Patent Office
Prior art keywords
crane
oil pressure
oil
loading harness
pressure accumulator
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EP85100991A
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German (de)
French (fr)
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EP0154159B1 (en
Inventor
Hermann Kruse
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Individual
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Individual
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Priority to AT85100991T priority Critical patent/ATE51204T1/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
    • B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/425—Gripping members engaging only the external or internal surfaces of the articles motor actuated
    • B66C1/427—Gripping members engaging only the external or internal surfaces of the articles motor actuated by hydraulic or pneumatic motors

Definitions

  • the invention relates to a crane loading harness with a manually operated actuating device. If the crane loading harnesses are so-called pallet grabs or the like, the gripper is opened with the manually operated actuation, whereas in most cases the gripper is closed by lifting the loading harness. It often happens that the closing process of gripper arms on crane loading gear must be carried out manually, namely whenever the gripper arms have to be positioned very precisely. Something similar also applies if the crane loading harnesses are supporting frames that are used in container transport in order to move, stack or load the individual containers. In all cases, the support frame must be manually and positively and / or non-positively connected to the I S O corners of the container by rotating movements to be effected manually.
  • the object of the invention is therefore to create a crane loading gear. with an improved manually operated actuation device that no longer requires physical strength and can be accommodated in the smallest space without external force generators.
  • the manual actuating device is provided with one or more hydraulic working cylinders
  • the load harness head which can be coupled to the load hook of the crane cable has two components which can be moved in the vertical direction over a limited stroke relative to one another.
  • an oil pressure generator which is provided with a memory and can be driven by the crane lifting movements and which is connected to the hydraulic working cylinders via manually operated control valves.
  • a trial of the subject of the registration shows that a few lifts and lifts with the help of the crane load rope are sufficient before starting work to provide enough pressure oil for the working cylinders for a first operation.
  • the oil pressure generator can be designed so that it always produces more oil pressure than is required in a working stroke.
  • the pallet gripper shown as an example of a crane loading gear in FIG. 1 is a gripper design, such as that shown by the applicant's utility model G 83 05 175.9.
  • the essence of the present invention is the actual oil pressure generator, which is located in the head part 11 of the pallet gripper 10.
  • the crane hook eye 12 is located on an upper support plate 13, which is connected to a lower support plate 17 by means of transfer bolts 15.
  • a gripper head plate 14, which is connected to the actual gripper arrangement via a linkage 18, is located between the upper support plate 13 and the lower support plate 17 and can be displaced in the vertical direction.
  • the gripper head plate 14 is mounted on the guide pin 15 so as to be displaceable in the vertical direction and is supported on the return springs 16 surrounding the pin 15. It is understandable that when the pallet gripper is lifted, ie when the crane hook eye 12 moves into the position denoted by 12 ', the gripper head plate 14 moves away from the upper support plate 13 and the lower support plate 17 approaches.
  • a piston-cylinder arrangement is formed between the gripper head plate 14 and the lower support plate 17.
  • the support plate 17 carries the piston rod 29 of a hydraulic cylinder 21 which is attached to the underside of the movable gripper head plate 14.
  • This hydraulic cylinder 21 is the actual oil pressure generator; it is arranged together with an oil pressure accumulator 23 and a pressure oil collecting container 22, an overpressure safety valve 24 and an emptying valve 25 below a hood 50 covering the head part 11 of the pallet gripper.
  • a pressure medium feed line 35 and a pressure medium return line 36 lead downward to a control valve 34 to be operated by the operator, which selectively connects the lines 35 and 36 mentioned to the motor connection lines 32, 33 of the working cylinder 31.
  • the hydraulic mode of operation is described below with reference to FIG. 2: With each lifting operation, i.e. each time the crane hook eye 12 comes into position 12 ', the piston rod 29 moves and with it the piston in the cylinder 21 upwards. The pressure oil displaced on the piston rod side reaches the oil pressure accumulator 23 via the check valve 28.
  • the space on the cylinder head side of the cylinder 21 is in constant communication with the pressure oil collection container 22 via the filter 26, so that oil can be sucked in and discharged as required. If the piston with the piston rod 29 is then moved downward again - for example when the load is set down - the piston rod-side space of the cylinder 21 fills up via the non-return valve 27 from the collecting container 22, so that the next time the non-return valve 28 is used Oil pressure accumulator 23 can be charged.
  • the oil pressure accumulator 23 is connected via the feed line 35 to the control valve 34, for example a control slide.
  • the control slide 34 is also via a line 36 and the filter 26 connected to the collecting container 22, so that pressure oil is also released again.
  • two motor feed lines 32 and 33 lead to the two cylinder spaces of the working cylinder 31, so that the piston rod 30 can be extended and retracted for the desired actuation. If one moves the hand lever 41 shown schematically in FIG. 2, starting from the locked neutral position, line 32 can be pressurized and line 33 connected to the collecting container or vice versa depending on the desired direction of actuation.
  • a conventional centering spring 42 can ensure that the control slide 34 remains in the non-actuated state in the blocking neutral position.
  • a manually adjustable throttle 44 is preferably provided in the feed line 35, which throttle valve 44 can also be bridged in a manner known per se so that the throttle valve 44 only works in one direction.
  • a manually operated drain valve 25 is located between the feed line 35 and the return line 36 leading to the collecting container 22.
  • an overpressure safety valve 24 which e.g. opens at a pressure of 150 bar. This means that the system cannot be hydraulically overloaded, even with frequent up and down movements of the loading gear and inadequate actuation of the working cylinder.
  • the invention is not limited to the embodiment described above, since the invention can also be used for all other types of hoists, in addition to pallet grippers, which additionally have an actuating device to be operated with hydraulic auxiliary force, which is to be supplied with pressure oil without interfering supply lines.
  • the linear working cylinder 31 is also to be regarded as an example, since other types of hydraulic motors can also be actuated with the hydraulic auxiliary force, for example when it is a matter of triggering rotary movements. Depending on the application, it is also possible to provide more than one working cylinder.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Jib Cranes (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

1. Crane loading gear with manually operable actuating device provided with at least one hydraulic working cylinder (31), wherein a loading gear head (11) which is adapted to be coupled to a load hook of a crane part has two component parts (13, 14) adapted to move through a limited travel in respect of each other in a vertical direction and wherein there is connected to the relatively mowable component parts (13, 14) an oil pressure cylinder (21) which is provided with a storage means (23) and which can be driven by the lifting movements of the crane, the oil pressure cylinder (21) being connected via manually operable control valves (34) to the hydraulic working cylinders (31), characterised in that the oil pressure adequate for an initial actuation of the crane loading gear when work commences can be generated by a minimal number of crane lifting movements and in that the two component parts of the loading gear head (11) which are adapted for movement in respect of each other comprise a carrying plate (13) and a gripper head plate (14), the carrying plate (13) and the gripper head plate (14) being initially tensioned in the contraction direction by springs (16) which enclose guide bolts (15) and in that between the oil pressure storage means (23) and a pressurised oil storage container (22) there is a manually operable emptying valve (25).

Description

Die Erfindung betrifft ein Kranladegeschirr mit manuell bedienbarer Betätigungsvorrichtung. Wenn es sich bei den Kranladegeschirren um sogenannte Palettengreifer o. dgl. handelt, wird mit der manuell bedienbaren Betätigung der Greifer geöffnet, wohingegen in den meisten Fällen das Schließen des Greifers durch das Anheben des Ladegeschirrs geschieht. Oft kommt es auch vor, daß der Schließvorgang von Greiferarmen an Kranladegeschirren manuell vorgenommen werden muß, nämlich immer dann, wenn die Greiferarme sehr genau zu positionieren sind. Etwas Entsprechendes gilt auch dann, wenn es sich bei den Kranladegeschirren um Tragrahmen handelt, die man beim Containertransport verwendet, um die einzelnen Container umzusetzen, aufeinanderzustapeln oder zu verladen. In allen Fällen muß der Tragrahmen auf manuellem Wege form- und/oder kraftschlüssig mit den ISO-Ecken des Containers durch entsprechend manuell zu bewirkende Drehbewegungen verbunden werden. Alle diese manuell durchzuführenden Bedienungen und Betätigungen sind außerordentlich arbeits-, kraft- und zeitraubend. In den meisten Fällen verbietet sich auch bei den bisher bekannten Kranladegeschirren die Verwendung von hydraulischen Hilfskraftgeräten, da die für die Druckölversorgung erforderlichen Leitungen im Ladegeschäft außerordentlich hinderlich und auch störungsanfällig sind.The invention relates to a crane loading harness with a manually operated actuating device. If the crane loading harnesses are so-called pallet grabs or the like, the gripper is opened with the manually operated actuation, whereas in most cases the gripper is closed by lifting the loading harness. It often happens that the closing process of gripper arms on crane loading gear must be carried out manually, namely whenever the gripper arms have to be positioned very precisely. Something similar also applies if the crane loading harnesses are supporting frames that are used in container transport in order to move, stack or load the individual containers. In all cases, the support frame must be manually and positively and / or non-positively connected to the I S O corners of the container by rotating movements to be effected manually. All these B carried out manually edienungen and activities are extremely labor, power- and time-consuming. In most cases, the crane loading harnesses known to date also prohibit the Use of hydraulic auxiliary equipment, since the lines required for the supply of pressure oil in the loading business are extremely cumbersome and also prone to failure.

Aufgabe der Erfindung ist daher die Schaffung eines Kranladegeschirrs. mit einer verbesserten manuell bedienbaren Betätigungsvorrichtung, die keine körperlichen Kräfte mehr benötigt und auf kleinstem Raum ohne äußere Krafterzeuger untergebracht werden kann.The object of the invention is therefore to create a crane loading gear. with an improved manually operated actuation device that no longer requires physical strength and can be accommodated in the smallest space without external force generators.

Die vorgenannte Aufgabe wird erfindungsgemäß dadurch gelöst, daß die manuelle Betätigungsvorrichtung mit einem oder mehreren hydraulischen Arbeitszylindern versehen wird, daß der mit dem Lasthaken des Kranseiles koppelbare Ladegeschirr-Kopf zwei in vertikaler Richtung über einen begrenzten Hub relativ zueinander bewegbare Bauteile aufweist. und daß mit den relativ bewegbaren Bauteilen ein mit Speicher versehener, durch die Kranhubbewegungen antreibbarer öldruckerzeuger vorgesehen ist, welcher über manuell bedienbare Steuerventile mit den hydraulischen Arbeitszylindern in Verbindung steht.The aforementioned object is achieved in that the manual actuating device is provided with one or more hydraulic working cylinders, that the load harness head which can be coupled to the load hook of the crane cable has two components which can be moved in the vertical direction over a limited stroke relative to one another. and that with the relatively movable components there is provided an oil pressure generator which is provided with a memory and can be driven by the crane lifting movements and which is connected to the hydraulic working cylinders via manually operated control valves.

Eine Erprobung des Anmeldungsgegenstandes zeigt, daß vor Arbeitsbeginn einige wenige Auf- und Abhübe mit Hilfe des Kran-Lastseiles ausreichen, um für eine erste Betätigung genügend Drucköl für die Arbeitszylinder zur Verfügung zu stellen. Der öldruckerzeuger kann dabei so ausgelegt werden, daß er stets mehr Öldruck produziert als bei einem Arbeitshub benötigt wird.A trial of the subject of the registration shows that a few lifts and lifts with the help of the crane load rope are sufficient before starting work to provide enough pressure oil for the working cylinders for a first operation. The oil pressure generator can be designed so that it always produces more oil pressure than is required in a working stroke.

Weitere Einzelheiten und Merkmale der Erfindung ergeben sich aus den Unteransprüchen.Further details and features of the invention emerge from the subclaims.

Nachfolgend wird anhand der beigefügten Zeichnung eine bevorzugte Ausführungsform der Erfindung näher erläutert.A preferred embodiment of the invention is explained in more detail below with reference to the accompanying drawing.

In der Zeichnung zeigen:

  • Fig. 1 eine schematische Vorderansicht eines erfindungsgemäß ausgebildeten Palettengreifers und
  • Fig. 2 ein schematisches hydraulisches Schaltbild zur hydraulischen Betätigungsvorrichtung des Palettengreifers der Fig. 1.
The drawing shows:
  • Fig. 1 is a schematic front view of a pallet gripper designed according to the invention and
  • FIG. 2 shows a schematic hydraulic circuit diagram for the hydraulic actuation device of the pallet gripper of FIG. 1.

Bei dem als Beispiel eines Kranladegeschirrs in der Fig. 1 gezeigten Palettengreifer handelt es sich um eine Greiferausbildung, wie sie beispielsweise das Gebrauchsmuster G 83 05 175.9 des Anmelders zeigt.The pallet gripper shown as an example of a crane loading gear in FIG. 1 is a gripper design, such as that shown by the applicant's utility model G 83 05 175.9.

Vom dargestellten Palettengreifer 10 ist lediglich der obere Teil der Greiferarme und der Greiferkopf 11 dargestellt. Für die vorliegende Erfindung ist die Kinematik der Greiferarmbewegung ohne Bedeutung. Es sei lediglich hier vorausgesetzt, daß der in Fig. 1 schematisch dargestellte hydraulische Arbeitszylinder 31 in der Lage sein soll, die Greiferarme aufeinander zu und voneinander fort zu bewegen.Of the pallet gripper 10 shown, only the upper part of the gripper arms and the gripper head 11 are shown. The kinematics of the gripper arm movement is of no importance for the present invention. It should only be assumed here that the hydraulic working cylinder 31 shown schematically in FIG. 1 should be able to move the gripper arms towards and away from each other.

Der Kernpunkt der vorliegenden Erfindung ist der eigentliche Öldruckerzeuger, der sich im Kopfteil 11 des Palettengreifers 10 befindet. Wie Fig. 1 zeigt, befindet sich die Kranhakenöse 12 an einer oberen Tragplatte 13, die überführungsbolzen 15 mit einer unteren Tragplatte 17 verbunden ist. In-vertikaler Richtung verschiebbar befindet sich zwischen oberer Tragplatte 13 und unterer Tragplatte 17 eine Greiferkopfplatte 14, die über ein Gestänge 18 mit der eigentlichen Greiferanordnung verbunden ist. Die Greiferkopfplatte 14 ist auf den Führungsbolzen 15 in vertikaler Richtung verschiebbar gelagert und stützt sich auf die Bolzen 15 umgebenden Rückstellfedern 16 ab. Es ist verständlich, daß beim Anheben des Palettengreifers, d.h. wenn sich die Kranhakenöse 12 in die mit 12' bezeichnete Stellung bewegt, sich die Greiferkopfplatte 14 von der oberen Tragplatte 13 entfernt und sich der unteren Tragplatte 17 nähert.The essence of the present invention is the actual oil pressure generator, which is located in the head part 11 of the pallet gripper 10. As shown in FIG. 1, the crane hook eye 12 is located on an upper support plate 13, which is connected to a lower support plate 17 by means of transfer bolts 15. A gripper head plate 14, which is connected to the actual gripper arrangement via a linkage 18, is located between the upper support plate 13 and the lower support plate 17 and can be displaced in the vertical direction. The gripper head plate 14 is mounted on the guide pin 15 so as to be displaceable in the vertical direction and is supported on the return springs 16 surrounding the pin 15. It is understandable that when the pallet gripper is lifted, ie when the crane hook eye 12 moves into the position denoted by 12 ', the gripper head plate 14 moves away from the upper support plate 13 and the lower support plate 17 approaches.

Gemäß der vorliegenden Erfindung ist zwischen der Greiferkopfplatte 14 und der unteren Tragplatte 17 eine Kolbenzylinderanordnung ausgebildet. Die Tragplatte 17 trägt die Kolbenstange 29 eines Hydraulikzylinders 21, der an der Unterseite der beweglichen Greiferkopfplatte 14 befestigt ist. Dieser Hydraulikzylinder 21 ist der eigentliche öldruckerzeuger; er ist zusammen mit einem Öldruckspeicher 23 und einem Druckölsammelbehälter 22, einem Überdrucksicherheitsventil 24 und einem Entleerungsventil 25 unterhalb einer den Kopfteil 11 des Palettengreifers abdeckenderi Haube 50 angeordnet.According to the present invention, a piston-cylinder arrangement is formed between the gripper head plate 14 and the lower support plate 17. The support plate 17 carries the piston rod 29 of a hydraulic cylinder 21 which is attached to the underside of the movable gripper head plate 14. This hydraulic cylinder 21 is the actual oil pressure generator; it is arranged together with an oil pressure accumulator 23 and a pressure oil collecting container 22, an overpressure safety valve 24 and an emptying valve 25 below a hood 50 covering the head part 11 of the pallet gripper.

Von dem vorstehend vom mechanischen Aufbau her geschilderten öldruckerzeuger führen eine Druckmittelspeiseleitung 35 und eine Druckmittelrückflußleitung 36 nach unten zu einem von der Bedienungsperson zu betätigenden Steuerventil 34, welches wahlweise die erwähnten Leitungen - 35 und 36 mit den Motoranschlußleitungen 32, 33 des Arbeitszylinders 31 verbindet. Die hydraulische Arbeitsweise wird nachfolgend anhand der Fig. 2 beschrieben: Bei jedem Hubvorgang, d.h. jedesmal wenn die Kranhakenöse 12 in die Position 12' kommt, bewegt sich die Kolbenstange 29 und mit ihr der Kolben im Zylinder 21 nach oben. Das kolbenstangenseitig verdrängte Drucköl gelangt über das Rückschlagventil 28 in den öldruckspeicher 23. Der zylinderkopfseitige Raum des Zylinders 21 steht über das Filter 26 ständig mit dem Druckölsammelbehälter 22- in Verbindung, so daß nach Bedarf öl angesaugt und abgegeben werden kann. Wenn anschließend der Kolben mit der Kolbenstange 29 wieder - beispielsweise beim Absetzen der Last - nach unten bewegt wird, füllt sich der kolbenstangenseitige Raum des Zylinders 21 über das Rückschlagventil 27 aus dem Sammelbehälter 22 auf, so daß beim nächsten Hub erneut über das Rückschlagventil 28 der Öldruckspeicher 23 aufgeladen werden kann.From the oil pressure generator described above from the mechanical construction, a pressure medium feed line 35 and a pressure medium return line 36 lead downward to a control valve 34 to be operated by the operator, which selectively connects the lines 35 and 36 mentioned to the motor connection lines 32, 33 of the working cylinder 31. The hydraulic mode of operation is described below with reference to FIG. 2: With each lifting operation, i.e. each time the crane hook eye 12 comes into position 12 ', the piston rod 29 moves and with it the piston in the cylinder 21 upwards. The pressure oil displaced on the piston rod side reaches the oil pressure accumulator 23 via the check valve 28. The space on the cylinder head side of the cylinder 21 is in constant communication with the pressure oil collection container 22 via the filter 26, so that oil can be sucked in and discharged as required. If the piston with the piston rod 29 is then moved downward again - for example when the load is set down - the piston rod-side space of the cylinder 21 fills up via the non-return valve 27 from the collecting container 22, so that the next time the non-return valve 28 is used Oil pressure accumulator 23 can be charged.

Der Öldruckspeicher 23 steht über die Speiseleitung 35 mit dem Steuerventil 34, beispielsweise einem Steuerschieber in Verbindung. In entsprechender Weise ist der Steuerschieber 34 auch über eine Leitung 36 und das Filter 26 mit dem Sammelbehälter 22 verbunden, so daß auch Drucköl wieder abgegeben werden. Vom Steuerschieber 34 führen zwei Motorspeiseleitungen 32 und 33 zu den beiden Zylinderräumen des Arbeitszylinders 31, so daß die Kolbenstange 30 zu entsprechend gewünschter Betätigung aus- und eingefahren werden kann. Wenn man den in Fig. 2 schematisch dargestellten Handhebel 41 bewegt, kann man ausgehend von der gesperrten Neutral-Stellung die Leitung 32 unter Druck setzen und die Leitung 33 mit dem Sammelbehälter verbinden oder auch umgekehrt je nach gewünschter Betätigungsrichtung. Eine übliche Zentrierfeder 42 kann dafür sorgen, daß der Steuerschieber 34 im unbetätigten Zustand in der absperrenden Neutral-Stellung verbleibt.The oil pressure accumulator 23 is connected via the feed line 35 to the control valve 34, for example a control slide. In a corresponding manner, the control slide 34 is also via a line 36 and the filter 26 connected to the collecting container 22, so that pressure oil is also released again. From the spool 34, two motor feed lines 32 and 33 lead to the two cylinder spaces of the working cylinder 31, so that the piston rod 30 can be extended and retracted for the desired actuation. If one moves the hand lever 41 shown schematically in FIG. 2, starting from the locked neutral position, line 32 can be pressurized and line 33 connected to the collecting container or vice versa depending on the desired direction of actuation. A conventional centering spring 42 can ensure that the control slide 34 remains in the non-actuated state in the blocking neutral position.

Um zu verhindern, daß der Arbeitszylinder 31 in ungewollter Weise schlagartig unter Druck gesetzt wird, ist in der Speiseleitung 35 vorzugsweise eine manuell verstellbare Drossel 44 vorgesehen,'die auch in an sich bekannter Weise von einem Rückschlagventil überbrückt sein kann, so daß die Drossel 44 nur in der einen Betätigungsrichtung wirkt.In order to prevent the working cylinder 31 from being suddenly pressurized in an undesired manner, a manually adjustable throttle 44 is preferably provided in the feed line 35, which throttle valve 44 can also be bridged in a manner known per se so that the throttle valve 44 only works in one direction.

Zwischen der Speiseleitung 35 und der zum Sammelbehälter 22 führenden Rückflußleitung 36 befindet sich ein manuell bedienbares Entleerungsventil 25. Wenn man den Handhebel 43 bewegt, kann das gesamte im Öldruckspeicher 23 vorhandene Drucköl zum Sammelbehälter 22 abfließen.A manually operated drain valve 25 is located between the feed line 35 and the return line 36 leading to the collecting container 22. When the hand lever 43 is moved, all of the pressure oil present in the oil pressure accumulator 23 can flow off to the collecting container 22.

Parallel zum vorerwähnten Entleerungsventil 25 befindet sich schließlich auch noch ein Überdruck-Sicherheitsventil 24, das z.B. bei einem Druck 150 bar öffnet. So kann es auch bei häufigen Auf- und Abbewegungen des Ladegeschirrs und fehlender Betätigung des Arbeitszylinders nicht zu einer hydraulischen Überlastung der Anlage kommen.Finally, parallel to the aforementioned drain valve 25 there is also an overpressure safety valve 24 which e.g. opens at a pressure of 150 bar. This means that the system cannot be hydraulically overloaded, even with frequent up and down movements of the loading gear and inadequate actuation of the working cylinder.

Die Erfindung ist nicht auf die vorstehend beschriebene Ausführungsform beschränkt, da die Erfindung außer für Palettengreifer auch für alle anderen Arten von Hebezeugen verwendbar ist, die zusätzlich noch eine mit hydraulischer Hilfskraft zu betreibende Betätgigungsvorrichtung aufweisen, die ohne störende Zuleitungen mit Drücköl zu versorgen ist. Der linear arbeitende Arbeitszylinder 31 ist ebenfalls als Beispiel zu werten, denn mit der hydraulischen Hilfskraft können auch andere Arten von Hydraulikmotoren betätigt werden, wenn es sich beispielsweise um die Auslösung von Drehbewegungen handelt. Je nach Anwendung ist es auch möglich, mehr als einen Arbeitszylinder vorzusehen.The invention is not limited to the embodiment described above, since the invention can also be used for all other types of hoists, in addition to pallet grippers, which additionally have an actuating device to be operated with hydraulic auxiliary force, which is to be supplied with pressure oil without interfering supply lines. The linear working cylinder 31 is also to be regarded as an example, since other types of hydraulic motors can also be actuated with the hydraulic auxiliary force, for example when it is a matter of triggering rotary movements. Depending on the application, it is also possible to provide more than one working cylinder.

Claims (6)

1. Kranladegeschirr mit manuell bedienbarer Betätigungsvorrichtung, dadurch gekennzeichnet, daß die manuelle Betätigungsvorrichtung mit einem oder mehreren hydraulischen Arbeitszylindern (31) versehen ist, daß der mit dem Lasthaken des Kranseiles koppelbare Ladegeschirr-Kopf (11) zwei in vertikaler Richtung über einen begrenzten Hub relativ zueinander bewegbare Bauteile (13, 14) aufweist und daß mit den relativ beweglichen Bauteilen (13, 14) ein mit Speicher (23) versehener, durch die Kranhubbewegungen antreibbarer Öldruckerzeuger (21) vorgesehen ist, welcher über manuell bedienbare Steuerventile (34) mit den hydraulischen Arbeitszylindern (31) in Verbindung steht.1. crane loading harness with manually operable actuating device, characterized in that the manual actuating device is provided with one or more hydraulic working cylinders (31) that the loading harness head (11), which can be coupled to the load hook of the crane cable, is relative in the vertical direction over a limited stroke Components (13, 14) which can be moved relative to one another and that the relatively movable components (13, 14) provide an oil pressure generator (21) which is provided with a memory (23) and can be driven by the crane lifting movements and which can be operated with manually operated control valves (34) hydraulic working cylinders (31) is connected. 2. Kranladegeschirr nach Anspruch 1, dadurch gekennzeichnet, daß zum Aufladen des öldruckspeichers (23) ein über Rückschlagventile (27, 28) einerseits an einem Ölvorratsbehälter (22) und andererseits am öldruckspeicher (23) angeschlossener Pumpenzylinder (21) vorgesehen ist, welcher zwischen den zwei relativ beweglichen Bauteilen (13, 14) des Ladegeschirrs (10) angeordnet ist.2. Crane loading harness according to claim 1, characterized in that for charging the oil pressure accumulator (23) via a check valve (27, 28) on the one hand on an oil reservoir (22) and on the other hand on the oil pressure accumulator (23) connected pump cylinder (21) is provided, which between the two relatively movable components (13, 14) of the loading gear (10) is arranged. 3. Kranladegeschirr nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die beiden relativ zueinander beweglichen Bauteile (13, 14) des Ladegeschirr-Kopfes (11) in Kontraktionsrichtung mit Federn (16) vorgespannt sind.3. crane loading harness according to claim 1 and 2, characterized in that the two relatively movable components (13, 14) of the loading harness head (11) in the contraction direction with springs (16) are biased. 4. Kranladegeschirr nach Anspruch' bis 3, dadurch gekennzeichnet, daß zwischen Öldruckspeicher (23) und Drucköl-Vorratsbehälter (22) ein Überdrucksicherheitsventil (24) angeordnet ist.4. crane loading harness according to claim 'to 3, characterized in that an overpressure safety valve (24) is arranged between the oil pressure accumulator (23) and pressure oil reservoir (22). 5. Kranladegeschirr nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß zwischen Öldruckspeicher (23) und Drucköl-Vorratsbehälter (22) ein manuell bedienbares Entleerungsventil (25) angeordnet ist.5. crane loading harness according to claim 1 to 4, characterized in that a manually operated drain valve (25) is arranged between the oil pressure accumulator (23) and pressure oil reservoir (22). 6. Kranladegeschirr nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß in der Speiseleitung (35) zwischen öldruckspeicher (23) und Arbeitszylinder-Steuerventil (34) eine regelbare Drossel (44) angeordnet ist.6. crane loading harness according to claim 1 to 5, characterized in that an adjustable throttle (44) is arranged in the feed line (35) between the oil pressure accumulator (23) and the working cylinder control valve (34).
EP85100991A 1984-02-10 1985-01-31 Loading device for a crane Expired - Lifetime EP0154159B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85100991T ATE51204T1 (en) 1984-02-10 1985-01-31 CRANE LOADS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843404740 DE3404740A1 (en) 1984-02-10 1984-02-10 CRANE LOADING HARNESS
DE3404740 1984-02-10

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EP0154159A1 true EP0154159A1 (en) 1985-09-11
EP0154159B1 EP0154159B1 (en) 1990-03-21

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EP85100991A Expired - Lifetime EP0154159B1 (en) 1984-02-10 1985-01-31 Loading device for a crane

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EP (1) EP0154159B1 (en)
AT (1) ATE51204T1 (en)
DE (2) DE3404740A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520178A1 (en) * 1991-06-25 1992-12-30 GKS SICHERHEITSTECHNIK GmbH Gripper
AT11638U3 (en) * 2010-09-06 2011-09-15 Profipack Gmbh SELF-CHARGING, FORCE AND WASTE-FIXABLE, HYDRAULIC CLAMPING DEVICE
CN104150348A (en) * 2014-07-24 2014-11-19 江苏福泰电力设备有限公司 Hydraulic constant-force hanging bracket

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004009226U1 (en) * 2004-06-14 2005-11-03 Eberhard, Manfred M. Coil tongs for use in lifting tool, has hydraulic main cylinder connected with operating cylinder which is provided for outer and inner clamping jaws, where operating cylinder is pressurized to clamp coil

Citations (7)

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Publication number Priority date Publication date Assignee Title
US3310335A (en) * 1965-10-13 1967-03-21 Neil E Shuey Load lifting mechanism
FR1494498A (en) * 1966-05-14 1967-09-08 Device for lifting off-center loads
FR1545007A (en) * 1966-11-19 1968-11-08 Loading device with automatic adjustment of the alignment of the center of gravity and the point of suspension
US3655232A (en) * 1968-06-20 1972-04-11 Ghislain Antoine Jean Marie Ma Gripper for handling heavy products and specifically horizontal-axis coils
DE2217265A1 (en) * 1972-04-11 1973-10-31 Huet Aloysius T Van LOADING FORK
DE2423339A1 (en) * 1974-05-14 1975-11-27 Huet Aloysius T Van Lift truck loading fork - interchangeable prongs on common mounting and clamping members coupled to central actuator
EP0113155A1 (en) * 1983-01-04 1984-07-11 Selectiebedrijf Kooi Beheer B.V. Device for moving a pile of objects such as boxes or bags

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Publication number Priority date Publication date Assignee Title
US1873712A (en) * 1928-01-05 1932-08-23 Lemaire Maurice Henri Lifting apparatus
US2616683A (en) * 1947-03-17 1952-11-04 Griffiths & Sprague Stevedorin Mechanism for weighing bulk cargo
DE1269316B (en) * 1964-10-07 1968-05-30 Kloeckner Werke Ag Intermediate link for crane hangers or the like.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310335A (en) * 1965-10-13 1967-03-21 Neil E Shuey Load lifting mechanism
FR1494498A (en) * 1966-05-14 1967-09-08 Device for lifting off-center loads
FR1545007A (en) * 1966-11-19 1968-11-08 Loading device with automatic adjustment of the alignment of the center of gravity and the point of suspension
US3655232A (en) * 1968-06-20 1972-04-11 Ghislain Antoine Jean Marie Ma Gripper for handling heavy products and specifically horizontal-axis coils
DE2217265A1 (en) * 1972-04-11 1973-10-31 Huet Aloysius T Van LOADING FORK
DE2423339A1 (en) * 1974-05-14 1975-11-27 Huet Aloysius T Van Lift truck loading fork - interchangeable prongs on common mounting and clamping members coupled to central actuator
EP0113155A1 (en) * 1983-01-04 1984-07-11 Selectiebedrijf Kooi Beheer B.V. Device for moving a pile of objects such as boxes or bags

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520178A1 (en) * 1991-06-25 1992-12-30 GKS SICHERHEITSTECHNIK GmbH Gripper
AT11638U3 (en) * 2010-09-06 2011-09-15 Profipack Gmbh SELF-CHARGING, FORCE AND WASTE-FIXABLE, HYDRAULIC CLAMPING DEVICE
CN104150348A (en) * 2014-07-24 2014-11-19 江苏福泰电力设备有限公司 Hydraulic constant-force hanging bracket
CN104150348B (en) * 2014-07-24 2016-06-22 江苏福泰电力设备有限公司 A kind of hydraulic constant-force suspension bracket

Also Published As

Publication number Publication date
EP0154159B1 (en) 1990-03-21
DE3404740A1 (en) 1985-08-14
ATE51204T1 (en) 1990-04-15
DE3576677D1 (en) 1990-04-26

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