EP2426077A1 - Crane - Google Patents
Crane Download PDFInfo
- Publication number
- EP2426077A1 EP2426077A1 EP20110007243 EP11007243A EP2426077A1 EP 2426077 A1 EP2426077 A1 EP 2426077A1 EP 20110007243 EP20110007243 EP 20110007243 EP 11007243 A EP11007243 A EP 11007243A EP 2426077 A1 EP2426077 A1 EP 2426077A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- boom
- guide cable
- crane according
- crane
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004804 winding Methods 0.000 description 2
- 240000001439 Opuntia Species 0.000 description 1
- 235000004727 Opuntia ficus indica Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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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
- B66C1/108—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 for lifting parts of wind turbines
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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
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
Definitions
- the invention relates to a crane, in particular a telescopic crane, with a hook attached to the hook frame for receiving a special load, in particular for receiving a rotor blade of a wind turbine.
- the rotor blades are to be mounted at high altitude.
- vehicle cranes or crawler cranes are preferred.
- the rotor blade to be mounted has a large rotor area and consequently a large wind attack surface.
- a sufficiently precise adjustment of the recorded rotor blade in the mounting height is required.
- the object of the invention is, starting from the previously explained embodiments, to show an improved possibility for stabilizing a recorded load.
- the crane comprises a frame suitable for receiving a special load, which is attached to the load hook of the crane.
- the frame is preferably suitable for receiving a rotor blade for a wind turbine.
- the subject of the present invention is not limited to the inclusion of a rotor blade. Rather, any load can be picked up with the help of the frame.
- the inventive Nevertheless, the subject matter explained below with reference to a frame for receiving a rotor blade.
- the boom system of the crane according to the invention can, for. B. consist of a telescopic boom, a jib and possibly a main boom extension.
- the attached to the load hook frame for receiving a special load is connected via at least two control cables with the guide cable and thereby sufficiently stabilized.
- the tensioned guide cable can be attached to the boom system at the end, depending on the application, at a variable height.
- a fastening in sufficient proximity to the roller head of the boom system, so that a guide is ensured at least two control cables used over the entire lifting height. At lower lift heights, it is sufficient to tension the guide cable end to the corresponding area on the boom system.
- the control cables are at least partially guided along the guide cable.
- the guide is expediently with the help of guide rollers or the like.
- the introduced tension on the guide cable is advantageously carried out by means of a winch, which is preferably arranged in the region of the boom foot. Conveniently located in the region of the boom foot from the outset a power supply and a control connection with which the winch is coupled to the entire crane bus system or crane control system.
- the winch is controlled synchronously by the crane control in response to a corresponding crane movement.
- a rocking movement of the luffing jib or a telescoping of the corresponding jib part necessitates a crane control-controlled skipping or winding-up of the guide rope with the aid of the winch.
- the winch can also be arranged indirectly or directly on the articulation piece and / or on the superstructure and / or on a luffing cylinder.
- control cables extend from the frame to the guide cable and are deflected in the region of the connection point with the guide cable by one or more deflection rollers.
- connection of the control cables with the guide cable is advantageously carried out via a connecting link.
- the connecting link comprises a double roller which either directly receives the control cables or is indirectly connected to the control cables via deflection rollers.
- the connecting link is guided over the double roller on the guide cable.
- An advantage is the arrangement of one or more pulleys on the frame, through which the individual control cables are deflected. In this case, the force in the rope and the rope drive on the frame can be reduced.
- one or more winches may be arranged on the frame to vary the tension of the control cables so as to keep the position of the frame stable.
- an existing arbitrarily executed crane can be retrofitted by attaching a winch in the region of the boom foot and the clamping of the guide cable parallel to the longitudinal axis of the boom system.
- the Indian FIG. 1 shown vehicle crane 1 has in a conventional manner designed as a truck undercarriage 2, on which a rotatable about an upright axle superstructure 3 is mounted.
- the uppercarriage 3 carries a cantilevered about a horizontal axis boom system 14, which has a hinged to the uppercarriage 3 articulated section 4 and several austeleskopierbare telescopic shots.
- a tiltable lattice tip 6 is arranged, which can be connected via lattice pieces.
- the main boom 5 is braced by means of a bracing 7, which is designed as a spatial, known Y-bracing.
- a hoist rope 22 is guided over a pulley 9 on the luffing tip 6 and carries a load hook 21.
- the load hook 21 is a frame 15 attached, which serves to receive a rotor blade not shown here a wind turbine.
- the winch 10 may alternatively (not in FIG. 1 shown) in the area of the boom foot, so be mounted on the superstructure.
- the guide cable 13 extends to the outer region of the boom system 14.
- the outer end of the cable 13 can be flexibly attached to any position of the boom system 14 depending on the application.
- the guide cable 13 is fixedly arranged on the luffing tip 6 near the region of the deflection roller 9.
- the winch 10 is controlled synchronously by the controller. Furthermore, a maximum winding force is defined for the winch 10. If the permissible winding force of the winch is exceeded, the winch automatically releases rope.
- the two control cables 16, 17 extend in the direction of the guide cable 13.
- the connecting link 20 has a double roller 25, which is guided along the guide cable 13. Symmetrical to the double roller 25, the two pulleys 26, 27 are movably attached to the connecting link. By the deflection rollers 26, 27, the control cables 16, 17 are deflected and guided back to the frame 15.
- control cables 16, 17 are deflected by further deflection rollers and controlled by a corresponding winch drive.
- the control cables 16, 17 control accordingly to stabilize or readjust the horizontal position of the frame 15 in the lifting height.
- the use of the individual pulleys ensures a reduction in force in the rope and the cable drive of the frame 15.
- the invention is not limited to the inclusion of a rotor blade.
- About the frame 15 can be accommodated any suitable in the receptacle of the frame 15 load.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
Description
Die Erfindung betrifft einen Kran, insbesondere einen Teleskopkran, mit einem am Lasthaken angehängten Rahmen zur Aufnahme einer speziellen Last, insbesondere zur Aufnahme eines Rotorblattes einer Windkraftanlage.The invention relates to a crane, in particular a telescopic crane, with a hook attached to the hook frame for receiving a special load, in particular for receiving a rotor blade of a wind turbine.
Bei der Montage von Windkraftanlagen sind die Rotorblätter in großer Höhe anzubringen. Hierzu werden bevorzugt Fahrzeugkrane oder Raupenkrane eingesetzt. Das zu montierende Rotorblatt weist eine große Rotorfläche und folglich eine große Angriffsfläche für den Wind auf. Zur Montage des Rotorblattes an der entsprechenden Windkraftanlage ist eine ausreichend präzise Justierung des aufgenommenen Rotorblatts in der Montagehöhe erforderlich.When installing wind turbines, the rotor blades are to be mounted at high altitude. For this purpose, vehicle cranes or crawler cranes are preferred. The rotor blade to be mounted has a large rotor area and consequently a large wind attack surface. For mounting the rotor blade on the corresponding wind turbine, a sufficiently precise adjustment of the recorded rotor blade in the mounting height is required.
Hierzu ist es aus dem Stand der Technik bereits bekannt, das Rotorblatt mittels eines Rahmens aufzunehmen. Dieser wird an dem Lasthaken des Hubseils angehängt und nimmt den zu montierenden Rotor in der entsprechenden Aufnahme auf.For this purpose, it is already known from the prior art to receive the rotor blade by means of a frame. This is attached to the load hook of the hoist and takes the rotor to be mounted in the appropriate recording.
In der
Weiterhin sind Konstruktionen bekannt, bei denen im Bereich des Auslegerfußes zwei zusätzliche Winden angebracht sind, deren Seile parallel in Richtung des Auslegerkopfes verlaufen. Die Aufnahme für das Rotorblatt ist über zwei Steuerseile mit den aufgespannten Seilen verbunden.Furthermore, constructions are known in which two additional winches are mounted in the region of the boom foot, whose ropes run parallel in the direction of the boom head. The receptacle for the rotor blade is connected via two control cables with the clamped cables.
Nachteilig an dieser bekannten Lösung ist zum einen, dass die Winden und die Seile eine zusätzliche Ausrüstung darstellen, die Gewicht und Kosten mit sich bringt. Darüber hinaus ist es erforderlich, beide Seile unabhängig voneinander zu spannen. Die eingebrachte Spannkraft pro Seil belastet den Ausleger, da sich die resultierende Drucklast wie eine zusätzliche Last auf den Ausleger verhält. Ebenfalls bedingt die Anbringung von zwei unabhängigen Seilen eine zusätzliche Seitenbelastung des Auslegers, falls ein Seil stärker belastet wird.A disadvantage of this known solution, on the one hand, that the winches and ropes represent additional equipment that brings weight and costs. In addition, it is necessary to tension both ropes independently of each other. The applied tension force per rope loads the boom because the resulting compressive load behaves like an additional load on the boom. Also, the attachment of two independent ropes requires an additional side load on the boom if a rope is loaded more heavily.
Aufgabe der Erfindung ist es, ausgehend von den vorangehend erläuterten Ausführungen, eine verbesserte Möglichkeit zur Stabilisierung einer aufgenommenen Last aufzuzeigen.The object of the invention is, starting from the previously explained embodiments, to show an improved possibility for stabilizing a recorded load.
Erfindungsgemäß wird diese Aufgabe durch einen Kran mit den Merkmalen des Anspruchs 1 gelöst. Demnach umfasst der Kran einen zur Aufnahme einer speziellen Last geeigneten Rahmen, der am Lasthaken des Krans angehängt ist. Der Rahmen ist bevorzugt zur Aufnahme eines Rotorblattes für eine Windkraftanlage geeignet. Der Gegenstand der vorliegenden Erfindung ist jedoch nicht auf die Aufnahme eines Rotorblattes beschränkt. Vielmehr läst sich eine beliebige Last mit Hilfe des Rahmens aufnehmen. Der Einfachheit halber wird der erfindungsgemäße Gegenstand dennoch im Folgenden anhand eines Rahmens zur Aufnahme eines Rotorblattes erläutert.According to the invention, this object is achieved by a crane having the features of
Erfindungsgemäß ist im Vergleich zum Stand der Technik nur ein einziges Führungsseil ohne Abspannfunktion vorgesehen, das ausgehend vom Auslegerfuß parallel zur Längsachsenrichtung des Auslegersystems gespannt ist und endseitig am Auslegersystem befestigt ist. Die Belastung im Ausleger wird gegenüber dem Stand der Technik halbiert, da nunmehr nur ein einzelnes Führungsseil gespannt wird. Auch wird die Funktion einer gegebenenfalls vorhandenen Abspannung nicht beeinflußt.According to the invention, only a single guide cable without guying function is provided in comparison to the prior art, which is stretched starting from the boom foot parallel to the longitudinal axis direction of the boom system and is fixed end to the boom system. The load in the boom is halved compared to the prior art, since now only a single guide rope is stretched. Also, the function of an optional bracing is not affected.
Das Auslegersystem des erfindungsgemäßen Krans kann z. B. aus einem Teleskopausleger, einem Spitzenausleger und gegebenenfalls einer Hauptauslegerverlängerung bestehen.The boom system of the crane according to the invention can, for. B. consist of a telescopic boom, a jib and possibly a main boom extension.
Der am Lasthaken angehängte Rahmen zur Aufnahme einer speziellen Last wird über mindestens zwei Steuerseile mit dem Führungsseil verbunden und hierdurch ausreichend stabilisiert.The attached to the load hook frame for receiving a special load is connected via at least two control cables with the guide cable and thereby sufficiently stabilized.
Bevorzugte Ausführungsmöglichkeiten des erfindungsgemäßen Krans sind Gegenstand der abhängigen Unteransprüche.Preferred embodiments of the crane according to the invention are the subject of the dependent subclaims.
Unabhängig vom verwendeten Auslegersystem lässt sich das gespannte Führungsseil endseitig je nach Einsatz in variabler Höhe am Auslegersystem befestigen. Bevorzugt ist eine Befestigung in ausreichender Nähe zum Rollenkopf des Auslegersystems, so dass eine Führung der mindestens zwei verwendeten Steuerseile über die gesamte Hubhöhe gewährleistet ist. Bei geringeren Hubhöhen ist es ausreichend, das Führungsseil endseitig bis zum entsprechenden Bereich am Auslegersystem zu spannen.Regardless of the boom system used, the tensioned guide cable can be attached to the boom system at the end, depending on the application, at a variable height. Preferably, a fastening in sufficient proximity to the roller head of the boom system, so that a guide is ensured at least two control cables used over the entire lifting height. At lower lift heights, it is sufficient to tension the guide cable end to the corresponding area on the boom system.
Die Steuerseile sind zumindest teilweise entlang des Führungsseils geführt. Die Führung erfolgt zweckmäßig mit Hilfe von Führungsrollen oder dergleichen.The control cables are at least partially guided along the guide cable. The guide is expediently with the help of guide rollers or the like.
Die eingebrachte Spannung auf das Führungsseil erfolgt vorteilhafterweise mittels einer Winde, die vorzugsweise im Bereich des Auslegerfußes angeordnet ist. Zweckmäßig befindet sich im Bereich des Auslegerfußes von vornherein eine Energieversorgung und eine Steuerungsanbindung, mit der die Winde an das gesamte Kranbussystem bzw. Kransteuerungssystem gekoppelt ist.The introduced tension on the guide cable is advantageously carried out by means of a winch, which is preferably arranged in the region of the boom foot. Conveniently located in the region of the boom foot from the outset a power supply and a control connection with which the winch is coupled to the entire crane bus system or crane control system.
Vorteilhafterweise wird die Winde in Abhängigkeit einer entsprechenden Kranbewegung synchronisiert von der Kransteuerung angesteuert. Eine Wippbewegung des Spitzenauslegers bzw. ein Teleskopieren des entsprechenden Auslegerteils bedingt ein durch die Kransteuerung gesteuertes Auslassen bzw. Aufwickeln des Führungsseils mit Hilfe der Winde. Darüber hinaus ist es möglich, die Winde mit einer maximalen Aufspulkraft zu versehen. Bei Überschreiten des Grenzwertes lässt die Winde automatisch Seil ab.Advantageously, the winch is controlled synchronously by the crane control in response to a corresponding crane movement. A rocking movement of the luffing jib or a telescoping of the corresponding jib part necessitates a crane control-controlled skipping or winding-up of the guide rope with the aid of the winch. In addition, it is possible to provide the winch with a maximum Aufspulkraft. When the limit is exceeded, the winch automatically releases rope.
Alternativ kann die Winde auch mittelbar oder unmittelbar am Anlenkstück und bzw. oder am Oberwagen und bzw. oder an einem Wippzylinder angeordnet sein.Alternatively, the winch can also be arranged indirectly or directly on the articulation piece and / or on the superstructure and / or on a luffing cylinder.
Als zweckmäßig erweist es sich in diesem Zusammenhang, wenn die Winde nahezu auf der Symmetrielinie des Auslegersystems angeordnet ist. Das aufgespannte Führungsseil verläuft folglich auf der gebildeten Symmetrieebene in Richtung der Auslegerspitze bis zum Befestigungspunkt am Auslegersystem. Durch die Anordnung der Winde auf der Symmetrielinie fällt die durch die Steuerseile hervorgerufene Seitenbelastungen des Auslegers im Gegensatz zum Stand der Technik erheblich geringer aus. Die einzige Auslegerbelastung resultiert lediglich aus der eingebrachten Drucklast des Führungsseils auf das Auslegersystem. Das Führungsseil verläuft vorteilhaft auf der Symmetrieebene auf der dem Lasthaken zugewandten Auslegerseite.It proves useful in this context, when the winch is located almost on the line of symmetry of the boom system. The clamped guide cable thus runs on the plane of symmetry formed in the direction of the boom tip to the attachment point on the boom system. Due to the arrangement of the winch on the line of symmetry caused by the control cables side loads of the boom in contrast to the prior art is significantly lower. The only cantilever load only results from the applied compressive load of the guide rope on the cantilever system. The guide cable advantageously extends on the plane of symmetry on the boom side facing the load hook.
Vorteilhafterweise verlaufen die Steuerseile ausgehend vom Rahmen zum Führungsseil und werden im Bereich des Verbindungspunkts mit dem Führungsseil durch ein oder mehrere Umlenkrollen umgelenkt.Advantageously, the control cables extend from the frame to the guide cable and are deflected in the region of the connection point with the guide cable by one or more deflection rollers.
Die Verbindung der Steuerseile mit dem Führungsseil erfolgt vorteilhafterweise über eine Verbindungskulisse. Die Verbindungskulisse umfasst eine Doppelrolle, die entweder die Steuerseile direkt aufnimmt oder mittelbar über Umlenkrollen mit den Steuerseilen in Verbindung steht. Die Verbindungskulisse ist über die Doppelrolle auf dem Führungsseil geführt.The connection of the control cables with the guide cable is advantageously carried out via a connecting link. The connecting link comprises a double roller which either directly receives the control cables or is indirectly connected to the control cables via deflection rollers. The connecting link is guided over the double roller on the guide cable.
Von Vorteil ist die Anordnung ein oder mehrerer Umlenkrollen auf dem Rahmen, durch die die einzelnen Steuerseile umgelenkt werden. In diesem Fall kann die Kraft im Seil und dem Seilantrieb auf dem Rahmen reduziert werden.An advantage is the arrangement of one or more pulleys on the frame, through which the individual control cables are deflected. In this case, the force in the rope and the rope drive on the frame can be reduced.
Schließlich können auf dem Rahmen ein oder mehrere Winden angeordnet sein, um die Spannung der Steuerseile zu variieren um so die Lage des Rahmens stabil zu halten.Finally, one or more winches may be arranged on the frame to vary the tension of the control cables so as to keep the position of the frame stable.
Im Gegensatz zum Stand der Technik kann durch die Verwendung des erfindungsgemäßen Führungsseils nun die Last mit einem sehr guten Winkel, auch bei Verwendung eines langen Spitzenauslegers, ausgerichtet werden. In diesem Zusammenhang sei angemerkt, dass die in der
Mit Hilfe der dargestellten erfindungsgemäßen technischen Lehre ist es ebenfalls denkbar, bereits bestehende Krane entsprechend nachzurüsten. In diesem Fall kann durch die Anbringung einer Winde im Bereich des Auslegerfußes und der Aufspannung des Führungsseils parallel zur Längsachse des Auslegersystems ein bestehender beliebig ausgeführter Kran nachgerüstet werden.With the aid of the illustrated inventive teaching, it is also conceivable to retrofit existing cranes accordingly. In this case, an existing arbitrarily executed crane can be retrofitted by attaching a winch in the region of the boom foot and the clamping of the guide cable parallel to the longitudinal axis of the boom system.
Weitere Vorteile und Einzelheiten der Erfindung ergeben sich aus einem in den Zeichnungen näher dargestellten Ausführungsbeispiel. Es zeigen:
- Figur 1:
- eine Seitenansicht eines Fahrzeugkrans mit Teleskopausleger in ausge-richteter Stellung und
- Figur 2:
- eine Detailaufnahme des Verbindungspunkts zwischen Führungsseil und den Steuerseilen.
- FIG. 1:
- a side view of a vehicle crane with telescopic boom in the aligned position and
- FIG. 2:
- a detail of the connection point between the guide cable and the control cables.
Der in der
Ein Hubseil 22 wird über eine Umlenkrolle 9 über die Wippspitze 6 geführt und trägt einen Lasthaken 21. Am Lasthaken 21 ist ein Rahmen 15 angehängt, der zur Aufnahme eines hier nicht näher dargestellten Rotorblattes einer Windkraftanlage dient.A hoist
Zur Stabilisierung des Rahmens 15, insbesondere während der Montage des Rotorblattes an der Windrotornabe, ist nunmehr nur eine einzige Winde 10 vorgesehen, welche sich nahezu auf der Symmetrielinie des Auslegersystems 14 befindet. Diese ist direkt am Gelenkschuß 4 des Hauptauslegers 5 angebracht und wird durch die vorgesehene Energieversorgung sowie die Steuerungsanbindung an das zentrale Kransystem gekoppelt. Die Steuerung der Winde 10 erfolgt beispielsweise ausgehend von der Kransteuerung über das Bus-System.To stabilize the
Die Winde 10 kann alternativ (nicht in
Ausgehend von der Winde 10 verläuft das Führungsseil 13 zum äußeren Bereich des Auslegersystems 14. Das äußere Ende des Seils 13 kann je nach Einsatz flexibel an einer beliebigen Stelle des Auslegersystems 14 befestigt werden. Im dargestellten Ausführungsbeispiel der
Je nach erfolgender Kranbewegung, wie beispielsweise ein Wippen der Wippspitze 6 bzw. ein Austeleskopieren des Hauptauslegers 5 des Auslegersystems 14, wird die Winde 10 von der Steuerung synchron angesteuert. Weiterhin ist für die Winde 10 eine maximale Aufspulkraft definiert. Wird die zulässige Aufspulkraft der Winde überschritten, so gibt die Winde automatisch Seil ab.Depending on the successful crane movement, such as a rocking of the luffing
Ausgehend vom Rahmen 15 verlaufen die beiden Steuerseile 16, 17 in Richtung des Führungsseils 13. Zur Verbindung der Steuerseile 16, 17 mit dem Führungsseil 13 dient die Verbindungskulisse 20, welche der Detaildarstellung in
Auf dem Rahmen selbst werden die Steuerseile 16, 17 durch weitere Umlenkrollen umgelenkt und durch einen entsprechenden Windenantrieb gesteuert. Über den Windenantrieb auf dem Rahmen 15 lassen sich die Steuerseile 16, 17 entsprechend ansteuern, um die horizontale Lage des Rahmens 15 in der Hubhöhe zu stabilisieren bzw. nachzujustieren. Die Verwendung der einzelnen Umlenkrollen sorgt für eine Kraftreduzierung im Seil und im Seilantrieb des Rahmens 15.On the frame itself, the
An dieser Stelle sei nochmals ausdrücklich erwähnt, dass die Erfindung nicht auf die Aufnahme eines Rotorblattes beschränkt ist. Über den Rahmen 15 kann eine beliebige in die Aufnahme des Rahmens 15 passende Last aufgenommen werden.At this point, it should be expressly mentioned that the invention is not limited to the inclusion of a rotor blade. About the
Durch die Verwendung eines einzelnen Führungsseils wird der Einfluß durch die Steuerseile 16, 17 auf das Auslegersystem 14 im Vergleich zu bekannten Lösungen aus dem Stand der Technik erheblich reduziert. Weiterhin bringt die symmetrische Anordnung der Winde 10, sowie der Verlauf des Führungsseils 13 entlang der Symmetrieebene des Auslegersystems 14 den entscheidenden Vorteil mit sich, dass die Seitenbelastung auf das Auslegersystem 14 weitestgehend verhindert wird. Die bisherigen bekannten Ausführungen, die auf mehrere Führungsseile bzw. auf die Verwendung der vorhandenen Abspannung setzen, haben den Nachteil, dass die Führungsseile außerhalb der Symmetrieebene seitlich neben dem Auslegersystem 14 verlaufen. Dies hat bei einer ungleichen Krafteinwirkung der Steuerseile auf die entsprechenden Führungsseile eine erhebliche Seitenbelastung des Auslegersystems 14 zur Folge.The use of a single guide cable greatly reduces the influence of the
Claims (10)
dadurch gekennzeichnet,
dass ein einziges Führungsseil ohne Abspannfunktion vorgesehen ist, das ausgehend vom Auslegerfuß gleichgerichtet zur Längsachsenrichtung des Auslegersystems gespannt ist und endseitig am Auslegersystem befestigt ist, wobei ein am Lasthaken angehängter Rahmen über mindestens zwei Steuerseile mit dem Führungsseil verbunden ist.Crane, in particular a telescopic crane, with a frame attached to the load hook for receiving a special load, in particular for receiving a rotor blade of a wind power plant,
characterized,
that a single guide cable is provided without guying function, which is stretched starting from the boom foot rectified to the longitudinal axis direction of the boom system and the end is attached to the boom system, wherein a hook attached to the frame is connected via at least two control cables to the guide cable.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202010012237U DE202010012237U1 (en) | 2010-09-06 | 2010-09-06 | crane |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2426077A1 true EP2426077A1 (en) | 2012-03-07 |
EP2426077B1 EP2426077B1 (en) | 2015-08-26 |
Family
ID=44533747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP11007243.6A Active EP2426077B1 (en) | 2010-09-06 | 2011-09-06 | Crane |
Country Status (5)
Country | Link |
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US (1) | US8794457B2 (en) |
EP (1) | EP2426077B1 (en) |
CN (1) | CN102381639B (en) |
DE (1) | DE202010012237U1 (en) |
DK (1) | DK2426077T3 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010015616U1 (en) * | 2010-11-18 | 2012-03-01 | Liebherr-Werk Ehingen Gmbh | crane |
GB201214656D0 (en) * | 2012-08-16 | 2012-10-03 | W3G Shipping Ltd | Offshore structures and associated apparatus and method |
DE102014003906A1 (en) * | 2013-07-01 | 2015-01-08 | Liebherr-Werk Biberach Gmbh | Tower Crane |
DE102013110464A1 (en) * | 2013-09-23 | 2015-03-26 | Max Bögl Wind AG | Device and method for handling, assembly or disassembly of components of a wind turbine |
EP2889251B1 (en) | 2013-12-30 | 2016-08-24 | Siemens Aktiengesellschaft | Load guiding arrangement |
US9346656B2 (en) * | 2014-07-01 | 2016-05-24 | Marvin M. May | Stabilization and control of a crane load |
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DE102015003982A1 (en) * | 2015-03-26 | 2016-09-29 | Liebherr-Werk Biberach Gmbh | crane tower |
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2010
- 2010-09-06 DE DE202010012237U patent/DE202010012237U1/en not_active Expired - Lifetime
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2011
- 2011-09-02 US US13/224,461 patent/US8794457B2/en active Active
- 2011-09-06 DK DK11007243.6T patent/DK2426077T3/en active
- 2011-09-06 EP EP11007243.6A patent/EP2426077B1/en active Active
- 2011-09-06 CN CN201110262804.5A patent/CN102381639B/en active Active
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DE202006015189U1 (en) | 2006-10-04 | 2008-02-14 | Liebherr-Werk Ehingen Gmbh | telescopic crane |
WO2008061797A1 (en) * | 2006-11-23 | 2008-05-29 | Siemens Aktiengesellschaft | Method and device for mounting of wind turbine blades |
DE202010003269U1 (en) * | 2010-03-08 | 2011-08-23 | Liebherr-Werk Ehingen Gmbh | crane |
Also Published As
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US8794457B2 (en) | 2014-08-05 |
CN102381639A (en) | 2012-03-21 |
DK2426077T3 (en) | 2015-12-07 |
DE202010012237U1 (en) | 2011-12-08 |
EP2426077B1 (en) | 2015-08-26 |
US20120061341A1 (en) | 2012-03-15 |
CN102381639B (en) | 2015-09-23 |
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