EP1342692A2 - Mobile crane with telescopic boom and method for mounting and dismounting brace elements for telescopic boom - Google Patents

Mobile crane with telescopic boom and method for mounting and dismounting brace elements for telescopic boom Download PDF

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Publication number
EP1342692A2
EP1342692A2 EP03004657A EP03004657A EP1342692A2 EP 1342692 A2 EP1342692 A2 EP 1342692A2 EP 03004657 A EP03004657 A EP 03004657A EP 03004657 A EP03004657 A EP 03004657A EP 1342692 A2 EP1342692 A2 EP 1342692A2
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EP
European Patent Office
Prior art keywords
telescopic boom
guy
guy supports
supports
brackets
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03004657A
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German (de)
French (fr)
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EP1342692B1 (en
EP1342692A3 (en
Inventor
Hans-Dieter Willim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liebherr Werk Ehingen GmbH
Original Assignee
Liebherr Werk Ehingen GmbH
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Filing date
Publication date
Priority claimed from DE20203443U external-priority patent/DE20203443U1/en
Priority claimed from DE10228345A external-priority patent/DE10228345A1/en
Application filed by Liebherr Werk Ehingen GmbH filed Critical Liebherr Werk Ehingen GmbH
Publication of EP1342692A2 publication Critical patent/EP1342692A2/en
Publication of EP1342692A3 publication Critical patent/EP1342692A3/en
Application granted granted Critical
Publication of EP1342692B1 publication Critical patent/EP1342692B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/42—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with jibs of adjustable configuration, e.g. foldable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/702—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic with a jib extension boom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/82—Luffing gear
    • B66C23/821—Bracing equipment for booms
    • B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions

Definitions

  • the present invention relates to a mobile crane with a telescopic boom that can be tilted about a lying axis and rotatable about an upright axis, with a pivoting section, telescopic sections telescopic out of the linking section, and with two guy supports, which are articulated on one of the sections, so that they can be moved from one another to the other substantially parallel to the shot folded transport position in an erect operating position, in particular V-shaped spread, are.
  • the invention further relates to a method for assembling or disassembling the guy supports of the telescopic boom of the mobile crane.
  • Telescopic booms of the type mentioned are regularly articulated on the superstructure of the mobile crane and can be luffed by luffing cylinders articulated on the superstructure.
  • the guy supports are usually articulated on the back of the telescopic boom in the upper area of an articulation section and can usually be erected by hydraulic cylinders.
  • the guy supports are connected by ropes or rods to the head of the inner telescopic section or a collar upper telescopic shot as well as opposite the uppercarriage or foot area of the articulated shot.
  • a crane boom is known, which is provided symmetrically to its horizontal and vertical central planes each with V-shaped guy supports, over which guy elements run to the head and foot area of the boom.
  • the guy supports can be swiveled around two axes so that they can be folded out of their V-shaped operating position for the purpose of transport to the articulation section.
  • this may not be sufficient to allow the mobile crane to drive on public roads.
  • the tele bracing In order to be able to comply with the legal axle load regulations, the tele bracing must be removed if necessary and loaded onto a low-loader traveling with you.
  • an additional auxiliary crane is required in order to lift the telescopic guy from the mobile crane and load it onto the low loader.
  • the present invention is therefore based on the object of creating an improved mobile crane and an improved method for assembling the guy supports of the type mentioned at the outset, avoiding the disadvantages of the prior art and advantageously developing the latter.
  • a quick and easy assembly or disassembly of the tele guy is to be achieved without an auxiliary crane.
  • this object is achieved by a mobile crane according to claim 1.
  • the stated object is achieved by a method according to claim 6.
  • Preferred embodiments of the invention are the subject of the dependent claims.
  • the guy supports are initially placed on consoles or comparable supports arranged next to the telescopic boom when the telescopic boom is tilted, and detached from the telescopic boom.
  • the telescopic boom is then luffed up without the guy supports.
  • the boom supports are then picked up and lifted from their intermediate storage on the brackets by the telescopic boom itself as well as loaded onto a low loader or the like.
  • the procedure can be reversed: the guy supports, which are initially on a flatbed trailer or the like, are lifted by the telescopic boom to which they are to be assembled and placed on the brackets in a predetermined position and orientation.
  • the telescopic boom is luffed so that it comes to rest between the guy supports lying on the brackets. Then the guy supports are mounted on the telescopic boom.
  • the predetermined position and orientation of the guy supports, in which the guy supports were previously placed on the brackets are advantageously chosen such that the guy supports with their telescopic boom connectors come to lie directly opposite the corresponding boom connectors of the telescopic boom when the telescopic boom is in the subsequent step is tipped.
  • the assembly or disassembly of the tele guy can be accomplished without a separate auxiliary crane.
  • the auxiliary crane mentioned does not need to be carried.
  • the brackets or shelves for the guy supports are expediently provided on the undercarriage of the mobile crane on the right and left next to the telescopic boom when the latter is tipped onto the vehicle in the longitudinal direction of the vehicle.
  • the guy supports are preferably placed on the brackets essentially horizontally and parallel to each other. They are disassembled or attached to the boom in their transport position folded onto the articulation.
  • positioning means for the guy supports can be provided on the brackets, which bring the guy supports into the desired predetermined assembly position when placed on the brackets.
  • Positioning means that act centering and / or form-fitting allow storage in only one position.
  • the guy supports can be pivoted about at least one pivot axis relative to the respective boom section to which they are attached, so that they can be erected and in particular spread out in a V-shape.
  • Pressure medium cylinders are regularly assigned to the guy supports in order to be able to pivot the guy supports accordingly.
  • the pressure medium cylinders can be dismantled from the telescopic boom together with the guy supports.
  • the pressure medium cylinders also remain on the telescopic boom and the guy supports can be removed without the pressure medium cylinders.
  • a connecting piece for detachable connection to the respective boom section can be provided on the guy supports, preferably at least one pivot axis being provided between the connector and the guy support and the pressure medium cylinder being articulated on the one hand on the connector and on the other hand on the guy support.
  • the guy supports can be removed from the boom as a unit, including the articulated mounting of the guy supports and the pressure medium cylinder for pivoting the guy supports.
  • the guy supports are articulated directly on the respective boom section free of cross-connections with each other, erecting trestles and the like. This means that each guy support can be removed separately without having to first disconnect the other guy support.
  • the mobile crane 1 shown in the figures has, in a manner known per se, an uppercarriage 2 which can be rotated about an upright axis and which is seated on the vehicle frame.
  • a articulated telescopic boom 3, which can be rocked about a horizontal axis, is articulated on the superstructure 2 and consists of an articulation section 4 and telescopic sections 16, 17, 18 and 19 which can be telescoped therefrom.
  • Two guy supports 6 are articulated on the collar 5 of the articulation section 4.
  • Guy ropes or rods are articulated to the tips of the guy supports 6, via which the guy supports are attached to the tip of the telescopic boom or the collar of a telescopic shot and the uppercarriage or foot area of the articulated shot.
  • the guy supports 6 are articulated so that they extend from one shown in FIG. 2 to the articulation section 4 folded position erected and V-shaped spread apart to achieve a lateral bracing of the telescopic boom.
  • the attachment of the guy supports 6 on the collar 5 of the articulation section 4 is detachable.
  • a half-shell-shaped telescopic boom connector 7 is provided at the foot of each guy support 6 and can be bolted to the collar 5 of the articulation section 4.
  • the guy support 6 is gimbally connected to the telescopic boom connector 7, i. H. pivotable about two mutually perpendicular axes. Via associated hydraulic cylinders 8, which are articulated on the respective guy support 6 and on the other hand on the respective telescopic boom connector 7, the guy support 6 can be pivoted accordingly when the telescopic boom connector 7 is bolted to the articulation section 4.
  • the two guy supports 6 can be placed on brackets 9 which are provided on the vehicle 10 on the right and left of the telescopic boom (see FIG. 1). As soon as the guy supports 6 are placed on the brackets 9, the guy supports 6 can be bolted off by the telescopic boom.
  • the articulated connection that forms the swivel axes could be released.
  • the entire telescopic boom connector 7, which is shown in FIG. 5 can be bolted off from the articulation section 4, so that the guy supports 5 lie alone on the brackets 9 on the vehicle 10.
  • the telescopic boom 3 is luffed up, as shown in FIG.
  • the telescopic boom 3 is used without guying, so that. H. with the crane itself to load the guy supports 6 onto a low loader 16, as shown in FIG. 1 and FIG. 4c.
  • This has the significant advantage that the usual and necessary auxiliary crane can be dispensed with in order to remove the tele-guy.
  • the telescopic guy can be loaded onto the transporter by crane in order to comply with the legal axle load regulations.
  • the naked telescopic boom 3 without guying and the lifting means running over the telescopic boom 3 are used in the form of a lifting rope.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The motor crane has a telescopic jib (3) rotating around a vertical axis and tipping around a horizontal axis, and two bracing supports (6) which with the telescopic jib lying horizontally can be dismantled from it and placed on brackets (9) provided adjacent to the jib and from which the bracing supports can be lifted and/or loaded by the jib itself according to the corresponding swinging up of the jib. A power cylinder is connected to the bracing supports to pivot them and can be dismantled from the telescopic jib together with the bracing supports as a unit. An Independent claim is included for a procedure for the assembly or disassembly of bracing supports on the telescopic jib of a motor crane.

Description

Die vorliegende Erfindung betrifft einen Fahrzeugkran mit einem um eine liegende Achse wippbaren und um eine aufrechte Achse drehbaren Teleskopausleger mit einem Anlenkschuss, aus dem Anlenkschuss austeleskopierbaren Teleskopschüssen sowie mit zwei Abspannstützen, die gelenkig an einem der Schüsse gelagert sind, so dass sie aus einer zueinander im wesentlichen parallelen an den Schuss angeklappten Transportstellung in eine aufgerichtete Betriebsstellung schwenkbar, insbesondere V-förmig aufspreizbar, sind. Die Erfindung betrifft des weiteren ein Verfahren zur Montage bzw. Demontage der genannten Abspannstützen des Teleskopauslegers des Fahrzeugkrans.The present invention relates to a mobile crane with a telescopic boom that can be tilted about a lying axis and rotatable about an upright axis, with a pivoting section, telescopic sections telescopic out of the linking section, and with two guy supports, which are articulated on one of the sections, so that they can be moved from one another to the other substantially parallel to the shot folded transport position in an erect operating position, in particular V-shaped spread, are. The invention further relates to a method for assembling or disassembling the guy supports of the telescopic boom of the mobile crane.

Teleskopausleger der genannten Art werden regelmäßig am Oberwagen des Fahrzeugkrans angelenkt und sind durch an dem Oberwagen angelenkte Wippzylinder wippbar. Die Abspannstützen sind gewöhnlich auf der Rückseite des Teleskopauslegers im oberen Bereich eines Anlenkschusses angelenkt und üblicherweise durch Hydraulikzylinder aufrichtbar. Die Abspannstützen sind durch Seile oder Gestänge gegenüber dem Kopfstück des inneren Teleskopschusses oder einem Kragen eines oberen Teleskopschusses sowie gegenüber dem Oberwagen oder Fußbereich des Anlenkschusses abspannbar. Beispielsweise aus dem DE-Gbm 1 751 383 ist ein Kranausleger bekannt, der symmetrisch zu seinen horizontalen und vertikalen Mittelebenen jeweils mit V-förmig angeordneten Abspannstützen versehen ist, über die Abspannelemente zu dem Kopf- und Fußbereich des Auslegers verlaufen. Die Abspannstützen sind um zwei Achsen schwenkbar, so dass sie aus ihrer V-förmigen Betriebsstellung zum Zwecke des Transports an den Anlenkschuss anklappbar sind. Dies ist jedoch unter Umständen nicht ausreichend, um den Fahrzeugkran über öffentliche Straßen fahren zu dürfen. Um die gesetzlichen Achslastvorschriften einhalten zu können, muss die Teleabspannung gegebenenfalls abgenommen werden und auf einen mitfahrenden Tieflader verladen werden. Bei dem herkömmlichen Fahrzeugkran ist ein zusätzlicher Hilfskran erforderlich, um die Teleabspannung vom Fahrzeugkran abzuheben und auf den Tieflader zu verladen.Telescopic booms of the type mentioned are regularly articulated on the superstructure of the mobile crane and can be luffed by luffing cylinders articulated on the superstructure. The guy supports are usually articulated on the back of the telescopic boom in the upper area of an articulation section and can usually be erected by hydraulic cylinders. The guy supports are connected by ropes or rods to the head of the inner telescopic section or a collar upper telescopic shot as well as opposite the uppercarriage or foot area of the articulated shot. For example, from DE-Gbm 1 751 383 a crane boom is known, which is provided symmetrically to its horizontal and vertical central planes each with V-shaped guy supports, over which guy elements run to the head and foot area of the boom. The guy supports can be swiveled around two axes so that they can be folded out of their V-shaped operating position for the purpose of transport to the articulation section. However, this may not be sufficient to allow the mobile crane to drive on public roads. In order to be able to comply with the legal axle load regulations, the tele bracing must be removed if necessary and loaded onto a low-loader traveling with you. In the case of the conventional mobile crane, an additional auxiliary crane is required in order to lift the telescopic guy from the mobile crane and load it onto the low loader.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, einen verbesserten Fahrzeugkran sowie ein verbessertes Verfahren zur Montage der Abspannstützen der eingangs genannten Art zu schaffen, die Nachteile des Standes der Technik vermeiden und letzteren in vorteilhafter Weise weiterbilden. Vorzugsweise soll eine rasche und einfache Montage bzw. Demontage der Teleabspannung ohne Hilfskran erreicht werden.The present invention is therefore based on the object of creating an improved mobile crane and an improved method for assembling the guy supports of the type mentioned at the outset, avoiding the disadvantages of the prior art and advantageously developing the latter. Preferably, a quick and easy assembly or disassembly of the tele guy is to be achieved without an auxiliary crane.

Erfindungsgemäß wird diese Aufgabe durch einen Fahrzeugkran gemäß Patentanspruch 1 gelöst. Hinsichtlich des Verfahrens wird die genannte Aufgabe durch ein Verfahren gemäß Patentanspruch 6 gelöst. Bevorzugte Ausgestaltungen der Erfindung sind Gegenstand der abhängigen Ansprüche.According to the invention, this object is achieved by a mobile crane according to claim 1. With regard to the method, the stated object is achieved by a method according to claim 6. Preferred embodiments of the invention are the subject of the dependent claims.

Erfindungsgemäß werden die Abspannstützen zum Zwecke der Demontage also zunächst bei abgewipptem Teleskopausleger auf neben dem Teleskopausleger angeordneten Konsolen oder vergleichbaren Auflagen abgelegt und von dem Teleskopausleger gelöst. Sodann wird der Teleskopausleger ohne die Abspannstützen aufgewippt. Die Auslegerstützen werden schließlich durch den Teleskopausleger selbst von ihrem Zwischenlager auf den Konsolen aufgenommen und angehoben sowie auf einen Tieflader oder dergleichen verladen. Zum Zwecke der Montage kann in umgekehrter Reihenfolge vorgegangen werden: Die zunächst auf einem Tieflader oder dergleichen liegenden Abspannstützen werden von dem Teleskopausleger, an den sie montiert werden sollen, selbst angehoben und auf die Konsolen in vorbestimmter Position und Ausrichtung abgelegt. Sodann wird der Teleskopausleger abgewippt, so dass er zwischen den auf den Konsolen liegenden Abspannstützen zu liegen kommt. Sodann werden die Abspannstützen an den Teleskopausleger montiert. Es versteht sich, dass die vorbestimmte Position und Ausrichtung der Abspannstützen, in der die Abspannstützen zuvor auf den Konsolen abgelegt wurden, vorteilhafterweise so gewählt werden, dass die Abspannstützen mit ihren Teleskopauslegerverbindungsstücken unmittelbar gegenüber den entsprechenden Auslegerverbindungsstücken des Teleskopauslegers zu liegen kommen, wenn der Teleskopausleger im nachfolgenden Schritt abgewippt wird.According to the invention, for the purpose of disassembly, the guy supports are initially placed on consoles or comparable supports arranged next to the telescopic boom when the telescopic boom is tilted, and detached from the telescopic boom. The telescopic boom is then luffed up without the guy supports. The boom supports are then picked up and lifted from their intermediate storage on the brackets by the telescopic boom itself as well as loaded onto a low loader or the like. For assembly purposes, the procedure can be reversed: the guy supports, which are initially on a flatbed trailer or the like, are lifted by the telescopic boom to which they are to be assembled and placed on the brackets in a predetermined position and orientation. Then the telescopic boom is luffed so that it comes to rest between the guy supports lying on the brackets. Then the guy supports are mounted on the telescopic boom. It goes without saying that the predetermined position and orientation of the guy supports, in which the guy supports were previously placed on the brackets, are advantageously chosen such that the guy supports with their telescopic boom connectors come to lie directly opposite the corresponding boom connectors of the telescopic boom when the telescopic boom is in the subsequent step is tipped.

Durch die Selbstmontage der Abspannstützen mit Hilfe des Teleskopauslegers selbst kann die Montage bzw. Demontage der Teleabspannung ohne einen separaten Hilfskran bewerkstelligt werden. Der genannte Hilfskran braucht nicht mitgeführt werden.Due to the self-assembly of the guy supports with the help of the telescopic boom itself, the assembly or disassembly of the tele guy can be accomplished without a separate auxiliary crane. The auxiliary crane mentioned does not need to be carried.

Die Konsolen bzw. Ablagen für die Abspannstützen sind zweckmäßigerweise auf dem Unterwagen des Fahrzeugkrans rechts und links neben dem Teleskopausleger vorgesehen, wenn letzterer in Fahrzeuglängsrichtung auf das Fahrzeug abgewippt wird. Vorzugsweise werden die Abspannstützen auf den Konsolen im wesentlichen horizontal und parallel zueinander abgelegt. Sie werden in ihrer an den Anlenkschuss angeklappten Transportstellung vom Ausleger demontiert bzw. an diesen anmontiert.The brackets or shelves for the guy supports are expediently provided on the undercarriage of the mobile crane on the right and left next to the telescopic boom when the latter is tipped onto the vehicle in the longitudinal direction of the vehicle. The guy supports are preferably placed on the brackets essentially horizontally and parallel to each other. They are disassembled or attached to the boom in their transport position folded onto the articulation.

Um die Abspannstützen für die Montage in der richtigen Position und Ausrichtung auf den Konsolen abzulegen, können an den Konsolen Positioniermittel für die Abspannstützen vorgesehen sein, die die Abspannstützen beim Ablegen auf die Konsolen in die gewünschte vorbestimmte Montageposition bringen. Dies können beispielsweise Positioniermittel sein, die zentrierend wirken und/oder formschlüssig ein Ablegen in nur einer Position erlauben.In order to place the guy supports for assembly in the correct position and orientation on the brackets, positioning means for the guy supports can be provided on the brackets, which bring the guy supports into the desired predetermined assembly position when placed on the brackets. For example Positioning means that act centering and / or form-fitting allow storage in only one position.

Vorteilhafterweise sind die Abspannstützen relativ zu dem jeweiligen Auslegerschuss, an dem sie befestigt sind, um zumindest eine Schwenkachse schwenkbar, so dass sie aufgerichtet und insbesondere V-förmig aufgespreizt werden können. Dabei sind regelmäßig Druckmittelzylinder den Abspannstützen zugeordnet, um die Abspannstützen entsprechend schwenken zu können. Um die Montage und Demontage zu erleichtern, kann vorgesehen sein, dass die Druckmittelzylinder zusammen mit den Abspannstützen als Einheit vom Teleskopausleger abbaubar sind. Es versteht sich jedoch, dass die Druckmittelzylinder auch am Teleskopausleger verbleiben und die Abspannstützen ohne die Druckmittelzylinder demontiert werden können.Advantageously, the guy supports can be pivoted about at least one pivot axis relative to the respective boom section to which they are attached, so that they can be erected and in particular spread out in a V-shape. Pressure medium cylinders are regularly assigned to the guy supports in order to be able to pivot the guy supports accordingly. In order to facilitate assembly and disassembly, it can be provided that the pressure medium cylinders can be dismantled from the telescopic boom together with the guy supports. However, it goes without saying that the pressure medium cylinders also remain on the telescopic boom and the guy supports can be removed without the pressure medium cylinders.

Gemäß einer vorteilhaften Ausführung der Erfindung kann an den Abspannstützen jeweils ein Verbindungsstück zur lösbaren Verbindung mit dem jeweiligen Auslegerschuss vorgesehen sein, wobei vorzugsweise zwischen dem Verbindungsstück und der Abspannstütze zumindest eine Schwenkachse vorgesehen ist und der Druckmittelzylinder einerseits am Verbindungsstück und andererseits an der Abspannstütze angelenkt ist. Die Abspannstützen können jeweils einschließlich der gelenkigen Lagerung der Abspannstützen sowie der Druckmittelzylinder zum Schwenken der Abspannstützen als Einheit vom Ausleger abgenommen werden.According to an advantageous embodiment of the invention, a connecting piece for detachable connection to the respective boom section can be provided on the guy supports, preferably at least one pivot axis being provided between the connector and the guy support and the pressure medium cylinder being articulated on the one hand on the connector and on the other hand on the guy support. The guy supports can be removed from the boom as a unit, including the articulated mounting of the guy supports and the pressure medium cylinder for pivoting the guy supports.

Um die Montage und Demontage weiter zu erleichtern, sind die Abspannstützen frei von Querverbindungen miteinander, Aufrichtböcken und dergleichen unmittelbar am jeweiligen Auslegerschuss angelenkt. Hierdurch kann jede Abspannstütze separat demontiert werden, ohne dass zuvor eine Verbindung zur anderen Abspannstütze gelöst werden müsste.In order to further facilitate assembly and disassembly, the guy supports are articulated directly on the respective boom section free of cross-connections with each other, erecting trestles and the like. This means that each guy support can be removed separately without having to first disconnect the other guy support.

Die Erfindung wird nachfolgend anhand einer bevorzugten Ausführung und zugehöriger Zeichnungen näher erläutert. In den Zeichnungen zeigen:

Fig. 1
eine Seitenansicht eines Fahrzeugkrans mit Teleskopausleger während des Verladens der Abspannstützen der Teleskopauslegerabspannung durch den Teleskopausleger selbst, wobei der Teleskopausleger in zwei verschiedenen Wippstellungen gezeigt ist,
Fig. 2
eine Seitenansicht des Fahrzeugkrans aus Fig. 1, wobei der Teleskopausleger in einer abgewippten, auf dem Fahrzeug ruhenden Stellung gezeigt ist, in der die Abspannstützen an den Anlenkschuss des Teleskopauslegers angeklappt sind und demontiert werden können,
Fig. 3
eine Draufsicht auf den Fahrzeugkran aus Fig. 2,
Fig. 4
ein schematisches Ablaufdiagramm zu dem Fahrzeugkran aus den vorhergehenden Figuren, das das Abbauen der Abspannstützen der Teleabspannung sowie deren Verladen auf einen Tieflader mittels des Teleskopauslegers des Krans selbst verdeutlicht, und
Fig. 5
eine perspektivische Ansicht einer demontierten Abspannstütze, die deren Teleskopauslegerverbindungsstück und dessen gelenkige Verbindung zur Abspannstütze zeigt.
The invention is explained in more detail below with the aid of a preferred embodiment and associated drawings. The drawings show:
Fig. 1
2 shows a side view of a mobile crane with telescopic boom during loading of the guy supports of the telescopic boom guying by the telescopic boom itself, the telescopic boom being shown in two different luffing positions,
Fig. 2
2 shows a side view of the mobile crane from FIG. 1, the telescopic boom being shown in a luffed position resting on the vehicle, in which the guy supports are folded onto the articulated section of the telescopic boom and can be removed,
Fig. 3
3 shows a plan view of the mobile crane from FIG. 2,
Fig. 4
a schematic flow diagram for the mobile crane from the previous figures, which shows the dismantling of the guy supports of the tele guy and their loading onto a low loader by means of the telescopic boom of the crane itself, and
Fig. 5
a perspective view of a dismantled guy support, showing the telescopic boom connector and its articulated connection to the guy support.

Der in den Figuren gezeigte Fahrzeugkran 1 besitzt in an sich bekannter Weise einen um eine aufrechte Achse drehbaren Oberwagen 2, der auf dem Fahrzeugrahmen sitzt. An dem Oberwagen 2 ist ein um eine horizontale Achse wippbarer Teleskopausleger 3 angelenkt, der aus einem Anlenkschuss 4 sowie daraus austeleskopierbaren Teleskopschüssen 16,17, 18 und 19 besteht.The mobile crane 1 shown in the figures has, in a manner known per se, an uppercarriage 2 which can be rotated about an upright axis and which is seated on the vehicle frame. A articulated telescopic boom 3, which can be rocked about a horizontal axis, is articulated on the superstructure 2 and consists of an articulation section 4 and telescopic sections 16, 17, 18 and 19 which can be telescoped therefrom.

An dem Kragen 5 des Anlenkschusses 4 sind zwei Abspannstützen 6 angelenkt. An den Spitzen der Abspannstützen 6 sind Abspannseile bzw. -stangen angelenkt, über die die Abspannstützen gegenüber der Spitze des Teleskopauslegers oder dem Kragen eines austeleskopierbaren Schusses und dem Oberwagen bzw. dem Fußbereich des Anlenkschusses abgespannt sind. Die Abspannstützen 6 sind dabei gelenkig angelenkt, so dass sie aus einer in Figur 2 gezeigten, an den Anlenkschuss 4 angeklappten Stellung aufgerichtet und V-förmig auseinander spreizbar sind, um auch eine seitliche Abspannung des Teleskopauslegers zu erreichen.Two guy supports 6 are articulated on the collar 5 of the articulation section 4. Guy ropes or rods are articulated to the tips of the guy supports 6, via which the guy supports are attached to the tip of the telescopic boom or the collar of a telescopic shot and the uppercarriage or foot area of the articulated shot. The guy supports 6 are articulated so that they extend from one shown in FIG. 2 to the articulation section 4 folded position erected and V-shaped spread apart to achieve a lateral bracing of the telescopic boom.

Die Befestigung der Abspannstützen 6 am Kragen 5 des Anlenkschusses 4 ist dabei lösbar ausgebildet. Wie Figur 4 zeigt, ist am Fuße einer jeden Abspannstütze 6 ein halbschalenförmiges Teleskopauslegerverbindungsstück 7 vorgesehen, das mit dem Kragen 5 des Anlenkschusses 4 verbolzbar ist. Die Abspannstütze 6 ist mit dem Teleskopauslegerverbindungsstück 7 kardanisch verbunden, d. h. um zwei zueinander senkrechte Achsen schwenkbar. Über zugeordnete Hydraulikzylinder 8, die einerseits an der jeweiligen Abspannstütze 6 und andererseits am jeweiligen Teleskopauslegerverbindungsstück 7 angelenkt sind, kann die Abspannstütze 6 entsprechend geschwenkt werden, wenn das Teleskopauslegerverbindungsstück 7 am Anlenkschuss 4 verbolzt ist.The attachment of the guy supports 6 on the collar 5 of the articulation section 4 is detachable. As FIG. 4 shows, a half-shell-shaped telescopic boom connector 7 is provided at the foot of each guy support 6 and can be bolted to the collar 5 of the articulation section 4. The guy support 6 is gimbally connected to the telescopic boom connector 7, i. H. pivotable about two mutually perpendicular axes. Via associated hydraulic cylinders 8, which are articulated on the respective guy support 6 and on the other hand on the respective telescopic boom connector 7, the guy support 6 can be pivoted accordingly when the telescopic boom connector 7 is bolted to the articulation section 4.

Wie die Figuren 2 und 3 zeigen, sind bei horizontal liegendem Teleskopausleger die beiden Abspannstützen 6 auf Konsolen 9 ablegbar, die auf dem Fahrzeug 10 rechts und links des Teleskopauslegers vorgesehen sind (vgl. Figur 1). Sobald die Abspannstützen 6 auf den Konsolen 9 abgelegt sind, können die Abspannstützen 6 von dem Teleskopausleger abgebolzt werden. Dabei könnte die gelenkige Verbindung, die die Schwenkachsen bilden, gelöst werden. Vorzugsweise kann jedoch das gesamte Teleskopauslegerverbindungsstück 7, das in Figur 5 gezeigt ist, vom Anlenkschuss 4 abgebolzt werden, so dass die Abspannstützen 5 alleine auf den Konsolen 9 auf dem Fahrzeug 10 liegen. Nach dem Abbolzen der Abspannstützen 6 wird der Teleskopausleger 3 aufgewippt, wie dies Figur 1 sowie Figur 4b zeigt, d. h. der Teleskopausleger 3 wird ohne Abspannung benutzt, um damit, d. h. mit dem Kran selbst, die Abspannstützen 6 auf einen Tieflader 16 zu verladen, wie dies die Figur 1 bzw. Figur 4c zeigen. Dies hat den wesentlichen Vorteil, dass auf den bisher üblichen und erforderlichen Hilfskran verzichtet werden kann, um die Teleabspannung abzunehmen. Die Teleabspannung kann mit dem Kran selbst auf den Transporter verladen werden, um die gesetzlichen Achslastvorschriften einhalten zu können. Dabei wird, wie Figur 1 zeigt, der nackte Teleskopausleger 3 ohne Abspannung sowie das über den Teleskopausleger 3 ablaufende Hubmittel in Form eines Hubseils verwendet.As FIGS. 2 and 3 show, with the telescopic boom lying horizontally, the two guy supports 6 can be placed on brackets 9 which are provided on the vehicle 10 on the right and left of the telescopic boom (see FIG. 1). As soon as the guy supports 6 are placed on the brackets 9, the guy supports 6 can be bolted off by the telescopic boom. The articulated connection that forms the swivel axes could be released. Preferably, however, the entire telescopic boom connector 7, which is shown in FIG. 5, can be bolted off from the articulation section 4, so that the guy supports 5 lie alone on the brackets 9 on the vehicle 10. After the guy supports 6 have been bolted, the telescopic boom 3 is luffed up, as shown in FIG. 1 and FIG. 4b, i. H. the telescopic boom 3 is used without guying, so that. H. with the crane itself to load the guy supports 6 onto a low loader 16, as shown in FIG. 1 and FIG. 4c. This has the significant advantage that the usual and necessary auxiliary crane can be dispensed with in order to remove the tele-guy. The telescopic guy can be loaded onto the transporter by crane in order to comply with the legal axle load regulations. As shown in FIG. 1, the naked telescopic boom 3 without guying and the lifting means running over the telescopic boom 3 are used in the form of a lifting rope.

Claims (8)

Fahrzeugkran mit einem um eine liegende Achse wippbaren und um eine aufrechte Achse drehbaren Teleskopausleger (3) mit einem Anlenkschuss (4), aus dem Anlenkschuss (4) austeleskopierbaren Teleskopschüssen (16, 17, 18, 19) sowie mit zwei Abspannstützen (6), die gelenkig an einem der Schüsse (4, 16, 17, 18) gelagert sind, so dass sie aus einer zueinander im wesentlichen parallelen, an den Schuss angeklappten Transportstellung in eine aufgerichtete Betriebsstellung schwenkbar, insbesondere V-förmig aufspreizbar sind, dadurch gekennzeichnet, dass die Abspannstützen (6) bei im wesentlichen horizontal liegendem Teleskopausleger (3) von diesem abbaubar und auf neben dem Teleskopausleger (3) vorgesehene Konsolen ablegbar sind, von denen aus die Abspannstützen (6) nach entsprechendem Aufwippen des Teleskopauslegers (3) von dem Teleskopausleger selbst anhebbar und/oder verladbar sind.Mobile crane with a telescopic boom (3) that can be tilted about a horizontal axis and rotated about an upright axis with a linkage section (4), telescopic sections (16, 17, 18, 19) telescopic out of the linkage section (4) and with two guy supports (6), which are articulated on one of the shots (4, 16, 17, 18) so that they can be pivoted, in particular spread out in a V-shape, from an essentially parallel, folded-up transport position to an upright operating position, characterized in that the guy supports (6) can be dismantled from the telescopic boom (3) and can be placed on consoles provided next to the telescopic boom (3), from which the guy supports (6) can be removed from the telescopic boom itself after the telescopic boom (3) has been swung up can be raised and / or loaded. Fahrzeugkran nach dem vorhergehenden Anspruch, wobei an den Abspannstützen Druckmittelzylinder zum Verschwenken der Abspannstützen (6) angelenkt sind, die zusammen mit den Abspannstützen (6) jeweils als Einheit vom Teleskopausleger (3) abbaubar sind.Mobile crane according to the preceding claim, wherein pressure means cylinders are pivoted to the guy supports for pivoting the guy supports (6), which together with the guy supports (6) can each be dismantled as a unit from the telescopic boom (3). Fahrzeugkran nach dem vorhergehenden Anspruch, wobei an den Abspannstützen (6) jeweils ein Teleskopauslegerverbindungsstück (7) zur lösbaren Verbindung mit dem jeweiligen Teleskopauslegerschuss, insbesondere einem Kragen (5) desselben, vorgesehen ist, wobei zwischen dem Teleskopauslegerverbindungsstück (7) und der jeweiligen Abspannstütze (6) zumindest eine Schwenkachse vorgesehen ist und/oder ein Druckmittelzylinder einerseits am Teleskopauslegerverbindungsstück (7) und andererseits an der Abspannstütze (6) anlenkbar ist.Mobile crane according to the preceding claim, wherein a telescopic boom connector (7) is provided on the guy supports (6) for detachable connection to the respective telescopic boom section, in particular a collar (5) thereof, the telescopic boom connector (7) and the respective guy support ( 6) at least one swivel axis is provided and / or a pressure medium cylinder can be articulated on the one hand on the telescopic boom connector (7) and on the other hand on the guy support (6). Fahrzeugkran nach einem der vorhergehenden Ansprüche, wobei die Abspannstützen (6) frei von Querverbindungen miteinander, Aufrichtböcken und dergleichen unmittelbar am jeweiligen Auslegerschuss anlenkbar sind.Mobile crane according to one of the preceding claims, wherein the guy supports (6) can be linked directly to the respective boom section free of cross-connections with one another, erecting trestles and the like. Fahrzeugkran nach einem der vorhergehenden Ansprüche, wobei an den Konsolen (9) Positioniermittel, vorgesehen sind, die die Abspannstützen (6) beim Ablegen auf den Konsolen (9) in eine vorbestimmte Montageposition bringen.Mobile crane according to one of the preceding claims, wherein positioning means are provided on the brackets (9) which bring the guy supports (6) into a predetermined assembly position when they are placed on the brackets (9). Verfahren zur Montage bzw. Demontage von Abspannstützen (6) an einem Teleskopausleger (3) eines Fahrzeugkrans insbesondere nach einem der vorhergehenden Ansprüche, mit folgenden Montageschritten: - Aufnehmen und Anheben der demontierten Abspannstützen (6) von einem Tieflader oder dergleichen durch den Teleskopausleger (3) selbst, - Ablegen der demontierten Abspannstützen (6) auf Konsolen (9) oder dergleichen im Abstand voneinander und in vorgegebener Stellung relativ zum Fahrzeugkran, - Abwippen des Teleskopauslegers (3) zwischen die auf den Konsolen (9) abgelegten Abspannstützen (6), und - Befestigung der Abspannstützen (6) an einem Abspannstützenverbindungsstück (5) eines der Schüsse des Teleskopauslegers (3). Method for assembling or disassembling guy supports (6) on a telescopic boom (3) of a mobile crane, in particular according to one of the preceding claims, with the following assembly steps: - Picking up and lifting the dismantled guy supports (6) from a low loader or the like by the telescopic boom (3) itself, Depositing the dismantled guy supports (6) on brackets (9) or the like at a distance from one another and in a predetermined position relative to the mobile crane, - Rocking the telescopic boom (3) between the guy supports (6) placed on the brackets (9), and - Attachment of the guy supports (6) to a guy support connector (5) of one of the shots of the telescopic boom (3). Verfahren nach dem vorhergehenden Anspruch, wobei die Abspannstützen (6) auf den Konsolen (9) im wesentlichen horizontal und/oder parallel zueinander abgelegt werden, und der Teleskopausleger (3) in eine horizontale, in Fahrzeuglängsrichtung weisende Richtung abgewippt wird.Method according to the preceding claim, wherein the guy supports (6) are placed on the brackets (9) essentially horizontally and / or parallel to one another, and the telescopic boom (3) is rocked in a horizontal direction pointing in the longitudinal direction of the vehicle. Verfahren nach einem der beiden vorhergehenden Ansprüche, wobei anstelle der genannten Montageschritte folgende Demontageschritte vorgesehen sind: - Abwippen des Teleskopauslegers (3) mit den daran montierten Abspannstützen (6) zwischen zwei Konsolen (9), bis die Abspannstützen (6) auf den Konsolen bzw. unmittelbar über den Konsolen liegen, - Ablegen der Abspannstützen (6) auf den Konsolen (9), wobei die Abspannstützen vom Teleskopausleger gelöst werden, - Aufwippen des Teleskopauslegers (3) ohne Abspannstützen (6), - Aufnehmen und Anheben der auf den Konsolen (9) liegenden Abspannstützen (6) durch den Teleskopausleger (3) selbst, und - Ablegen der Abspannstützen (6) auf einem Tieflader oder dergleichen. Method according to one of the two preceding claims, the following disassembly steps being provided instead of the assembly steps mentioned: - rocking the telescopic boom (3) with the guy supports (6) attached to it between two brackets (9) until the guy supports (6) lie on the brackets or directly above the brackets, - placing the guy supports (6) on the brackets (9), whereby the guy supports are released from the telescopic boom, - luffing of the telescopic boom (3) without guy supports (6), - Picking up and lifting the guy supports (6) lying on the brackets (9) by the telescopic boom (3) itself, and - Placing the guy supports (6) on a low loader or the like.
EP03004657A 2002-03-04 2003-03-03 Mobile crane with telescopic boom and method for mounting and dismounting brace elements for telescopic boom Expired - Lifetime EP1342692B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20203443U 2002-03-04
DE20203443U DE20203443U1 (en) 2002-01-02 2002-03-04 Telescopic jib has bracing supports pivotable around only one single respective pivot point inclined do that supports spread out in V-form during orientation into operating position
DE10228345 2002-06-25
DE10228345A DE10228345A1 (en) 2002-03-04 2002-06-25 Mobile crane with a telescopic boom and method for assembling or disassembling guy supports of the telescopic boom

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EP1342692A2 true EP1342692A2 (en) 2003-09-10
EP1342692A3 EP1342692A3 (en) 2005-06-22
EP1342692B1 EP1342692B1 (en) 2008-06-18

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WO2005092775A1 (en) 2004-03-26 2005-10-06 Terex-Demag Gmbh & Co. Kg Mobile crane sytsem comprising a mobile crane and an auxiliary device for assembly of a bracing device
EP2248754A1 (en) * 2009-05-07 2010-11-10 Manitowoc Crane Group France SAS Telescopic crane with self-fittable slackening device and fitting method for a slackening device
US8689986B2 (en) 2009-05-07 2014-04-08 Manitowoc Crane Group France Sas Telescopic crane with self-mounting bracing device and method of mounting a bracing device
US11111115B2 (en) 2017-03-02 2021-09-07 Maniitowoc Crane Companies, LLC Wear pad with insert for telescoping boom assembly
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CN113800449A (en) * 2021-11-16 2021-12-17 四川明阳承起机械有限公司 Automatic change big arm dismouting equipment of hoist

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DE50309991D1 (en) 2008-07-31
EP1342692B1 (en) 2008-06-18
US20040000531A1 (en) 2004-01-01
US7686174B2 (en) 2010-03-30
EP1342692A3 (en) 2005-06-22

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