EP0516938A1 - Device for the stepwise raising of heavy weights for tower cranes or working platforms - Google Patents

Device for the stepwise raising of heavy weights for tower cranes or working platforms Download PDF

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Publication number
EP0516938A1
EP0516938A1 EP92105834A EP92105834A EP0516938A1 EP 0516938 A1 EP0516938 A1 EP 0516938A1 EP 92105834 A EP92105834 A EP 92105834A EP 92105834 A EP92105834 A EP 92105834A EP 0516938 A1 EP0516938 A1 EP 0516938A1
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EP
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Prior art keywords
support
tower
climbing
cross
piece
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EP92105834A
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German (de)
French (fr)
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EP0516938B1 (en
Inventor
Alfons Köhle
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Liebherr Werk Biberach GmbH
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Liebherr Werk Biberach GmbH
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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
    • 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
    • B66C23/26—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 for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/28—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 for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels
    • B66C23/283—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 for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels with frameworks composed of assembled elements

Definitions

  • the invention relates to a climbing device for climbing large climbing weights in tower cranes, working platforms or the like, preferably a climbing device for inserting and removing tower pieces or from towers of tower cranes, working platforms or the like.
  • Consisting of a part to be lifted or lowered on the part to be lifted or lowered for example a crane top part, a stage base or a tower section, which forms a guide piece and surrounds the tower with an at least partially open insertion side,
  • Climbing devices of this type are usually used on tower cranes, the towers of which support the upper crane parts, depending on the construction progress, have to be extended at intervals by installing a tower section. Conversely, when dismantling the tower cranes, it is again necessary to lower the upper crane part by removing individual tower sections. Climbing devices of the type specified at the outset are known for installing and removing tower sections. In order to lift the upper crane part or a tower section to install a tower section, the climbing frame is attached to the base of the upper crane part, e.g. the slewing ring support, or the lower end of the tower section to be lifted, whereby the connection of the upper crane part to the next tower section or the connection between the two tower sections is solved.
  • the upper crane part or the detached tower section is gradually lifted by lifting the climbing frame until a new tower section can be inserted through the open side of the climbing frame, which can then be connected in the usual way to the upper crane section and / or the tower section or sections.
  • the press shoe is lowered in the middle of the upper crossbar of a climbing association of the tower section, the climbing crossbar connected to the press shoe being supported on the corner posts of the tower section, so that the crossbar is only loaded in the vertical direction and the horizontal forces via the climbing crossbar into the corner posts be initiated.
  • the climbing structure of the tower sections consists of an upper crossbar with a central node, where the upper ends of two diagonal bars meet, the lower ends of which are articulated or fastened to the ends of the next lower crossbar in the area of the corner posts.
  • the known climbing device is sufficient for the climbing towers of conventional rotating cranes.
  • the support forces of the support shoes and the press shoes of the supports and hydraulic presses can become so great that deformations of the crossbars of the climbing associations are to be feared.
  • Chimney towers are particularly heavy, large and tall towers. To build such towers, upper work platforms and platforms that also carry cranes are required, which must be supported on towers, which must also be extended in accordance with the construction progress. If conventional climbing devices were used for such towers, the towers, or at least the climbing associations of the individual tower sections, would only have to be significantly strengthened so that they can absorb the supporting forces of the climbing device. It would therefore be necessary to oversize the individual tower sections only in order to be able to install tower sections that extend the tower with a climbing device.
  • the object of the invention is to provide a climbing device which allows climbing without over-dimensioning the tower even if the tower is designed for greater supporting forces.
  • this object is achieved in a climbing device according to the preamble of claim 1 by two climbing devices arranged in tandem, which are installed in a guide piece comprising the tower.
  • two hydraulic presses with press shoes and climbing traverses are articulated on two spaced-apart crossbars of the climbing frame and that two supports with supporting trusses are provided which can be supported on different crossbars of the climbing association of the tower part or parts whose support shoes are provided with a compensation device that distributes the support forces evenly on both support shoes.
  • the invention is based initially on the knowledge that simply doubling the hydraulic presses and the supports with support shoes does not lead to greater lifting forces of the climbing frame, because the lifting forces must be introduced into the cross bars of the climbing associations of the tower sections via two support shoes or press shoes because two support points each lead to statically indeterminate systems in such a way that a uniform support is only guaranteed when a force balance has occurred due to deformations of the cross bars.
  • the invention thus consists not only in doubling the hydraulic presses and the supports with support shoes, but in particular in that a compensation device is provided for the support shoes, which distributes the support forces evenly over both support shoes.
  • This uniform distribution of the supporting forces makes it possible to use a climbing device with one without overdimensioning the tower sections
  • To use climbing frame which is provided with two hydraulic presses and supports with end support shoes, each of which attacks a different crossbars of the climbing associations of the tower section or sections.
  • the compensation direction consists of a support articulated on an upper crossbar of the climbing frame, at the lower end of which a rocker-type compensation piece is articulated, the inner part of which forms an upper support shoe and on the outer part of which a support with support cross-member and the support shoe is articulated, the articulated connection of the compensation piece with the upper support being between the upper support shoe part and the joint of the lower support.
  • a uniform distribution of the support forces on both shoes is achieved by the rocker-type compensation piece, which is always aligned in such a way that the support forces are applied evenly to both loaded cross bars of the climbing association.
  • the articulated connection of the compensating piece with the upper support is expediently located approximately centrally between the upper support shoe part and the articulated connection with the lower support.
  • the two supports consist of hydraulic piston-cylinder units, the cylinders of which are provided with a compensating line and the piston rods of which support shoes.
  • the introduction of equally large forces is ensured by the support shoes in that pressures of the same size occur in the hydraulic fluid in the cylinder chambers of the two hydraulic cylinders.
  • the cylinders can be equipped with devices to compensate for leakage oil losses.
  • the tower section 1 enclosed by the climbing frame 10 of the climbing device has an approximately square cross section and consists of the corner posts 2, 3, 4, 5 which run parallel to one another and are connected to one another by rods.
  • the bars located between the corner posts 2.4 form the climbing association, which consists of parallel bars 6 and diagonal bars 7, 8 connected to the corner posts 2.4 and diagonal bars 7.8, the upper ends of which are each connected to the cross bars 6 at their central node 9 and whose lower ends in the area of the corner posts 2, 4 are connected to the latter and the transverse bars 6 below.
  • a climbing bandage is created, from which cross bars 6 are able to absorb the vertical support forces transmitted from the support shoes and press shoes in their central region.
  • the remaining three sides of the tower section are formed by diagonal bars 11, 12, which run in a zigzag shape between the corner posts and are connected to one another and to the corner posts at common nodes.
  • corner posts are connected to one another by cross bars that lie in a common plane.
  • the climbing frame enclosing the tower section 1 also consists of four corner posts 14, 15, 16, 17, which run transversely and diagonally Rods are interconnected.
  • the climbing frame 10 On its side opposite the climbing association 6, 7, of the tower section 1, the climbing frame 10 has an open area 18, which is used for inserting tower sections or extending tower sections. Below this open area, the climbing frame 10 can be connected to one another by detachable rods which can be removed so that, if necessary, the climbing device with the climbing frame can be lifted sideways after removal of the rods after assembly.
  • the climbing frame On the side of the climbing association of the tower section 1, the climbing frame is provided with two cross bars 21, 22, which are connected at middle nodes to the lower ends of two diagonal bars 22, 23, the upper ends of which in the area of the cross bars above them and the corner posts 14, 17 are connected.
  • the transverse rods 21, 22, which are supported in this way in the center, have joint pieces on their undersides, to which the cylinders 26, 27 are articulated by hydraulic presses, the piston rods of which 28.29 carry press shoes 30, 31, with the outer ends of climbing beams 32, 33 in the center are connected, which are provided at their ends with downwardly projecting legs 34.
  • rocker-like compensating pieces 40, 41 are articulated on both sides of the cylinder 26 of the upper press 20.
  • These rocker-like compensating pieces 40, 43 have approximately the basic shape of an isosceles triangle, the support rods 38, 39 being articulated in the region of the tips of the approximately triangular-shaped compensating pieces.
  • the inner part of the base surface 42 of the compensating piece forms a support shoe which is supported on a cross bar of the climbing association of the tower piece 1.
  • a the outer areas of the two triangular compensating pieces are supported around the hinge pins 44, 45, supports 46, 47, the lower ends of which form support shoes which are supported on a lower cross bar 48 of the climbing association of the tower piece.
  • the supports 38, 39 and 46, 47 are provided above the compensating pieces 40, 41 and above the support shoes with support cross members 50, 51, which are best shown in FIG 1 can be seen and which are supported on the corner posts 14, 17 of the climbing frame.
  • the distance between the compensating pieces 40, 41 from the ends of the supports 46, 47 forming the lower support shoes is chosen such that the support shoe parts of the compensating pieces 40, 41 and the support shoes of the supports 46, 47 are supported on successive cross bars of the climbing association.
  • the triangular compensating pieces 40, 41 form rocker-like parts which can pivot about the upper articulated connection with the supports 38, 39 in such a way that the inner support shoe part of the base and the lower support rods 46, 47 absorb approximately the same support forces with the support shoes.
  • the climbing beams 32, 33 are attached to the press shoes 30, 31 in such a way that the presses hang in a pendulum-like manner with an inclined position towards the inside.
  • the support cross members 50, 51 are fastened to the supports 38, 39 and 46, 47 in such a way that they too hang in an inclined position facing inwards.
  • the press shoes and the support shoes each find their support position on the cross bars of the climbing association, without these having to be lifted.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Types And Forms Of Lifts (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

The invention relates to a device for the stepwise raising of heavy weights for tower cranes, working platforms or the like, preferably a raising device for inserting and removing tower sections into or from towers of tower cranes, working platforms or the like, consisting of a raising frame (10) which can be attached to the part to be lifted or lowered, for example a crane upper part, a platform base or a tower section (1), forms a guide piece, encloses the tower and has an at least partly open push-in side, a hydraulic press, which is linked to a cross-member of the bracing and whose piston rod carries a press shoe with a raising cross-piece which can be supported on the corner posts of a tower section, and a support which is linked to the cross- member and has a supporting cross-piece, which can be supported on corner posts, and an end supporting shoe. Two raising devices arranged in tandem are provided which are fitted in a guide piece surrounding the tower. In addition, provision is made for two hydraulic presses with press shoes (30, 31) and raising cross-pieces (32, 33) to be linked to two cross-members, at a distance from one another, of the raising frame (10), and for two supports, which can be supported on different cross-members of the raising bracing of the tower section or tower sections, to be provided with supporting cross-pieces, the supporting shoes of which are provided with a balancing device which uniformly distributes the supporting forces over both supporting shoes. <IMAGE>

Description

Die Erfindung betrifft eine Klettereinrichtung zum Klettern großer Klettergewichte bei Turmdrehkranen, Arbeitsbühnen o.dgl., vorzugsweise eine Klettereinrichtung zum Einsetzen und Entfernen von Turmstücken bzw. aus Türmen von Turmdrehkranen, Arbeitsbühnen o.dgl.The invention relates to a climbing device for climbing large climbing weights in tower cranes, working platforms or the like, preferably a climbing device for inserting and removing tower pieces or from towers of tower cranes, working platforms or the like.

bestehend aus einem an das zu hebende oder abzusenkende Teil, beispielsweise ein Kranoberteil, einen Bühnensockel oder ein Turmstück, anbaubaren, ein Führungsstück bildenden und den Turm einfassenden Kletterrahmen mit einer zumindest teilweise offenen Einschubseite,Consisting of a part to be lifted or lowered on the part to be lifted or lowered, for example a crane top part, a stage base or a tower section, which forms a guide piece and surrounds the tower with an at least partially open insertion side,

mit einer an einem Ouerstab des Stabverbandes angelenkten hydraulischen Presse, deren Kolbenstange einen Pressenschub mit einer auf den Eckstielen eines Turmstücks abstützbaren Klettertraverse trägt, und
mit einer an dem Querstab angelenkten Stütze mit einer auf Eckstiele abstützbaren Stütztraverse und einem endseitigen Stützschuh.with a hydraulic press articulated on an outer rod of the rod assembly, the piston rod of which carries a press thrust with a climbing traverse which can be supported on the corner posts of a tower section, and
with a support articulated on the crossbar with a support cross-piece that can be supported on corner posts and an end-side support shoe.

Klettereinrichtungen dieser Art werden üblicherweise an Turmdrehkränen verwendet, deren die Kranoberteile tragenden Türme je nach Baufortschritt in Abständen durch den Einbau eines Turmstücks verlängert werden müssen. Beim Abbau der Turmdrehkräne ist es dann umgekehrt wieder erforderlich, das Kranoberteil durch Ausbau einzelner Turmstücke abzusenken. Zum Ein- und Ausbau von Turmstücken sind Klettereinrichtungen der eingangs angegebenen Art bekannt. Um das Kranoberteil oder ein Turmstück zum Einbau eines Turmstücks zu heben, wird der Kletterrahmen an der Basis des Kranoberteils, beispielsweise der Kugeldrehkranzauflage, oder dem unteren Ende des zu hebenden Turmstücks befestigt, wobei die Verbindung des Kranoberteils zu dem nächst folgenden Turmstück oder die Verbindung zwischen den beiden Turmstücken gelöst wird. Sodann wird das Kranoberteil oder das gelöste Turmstück schrittweise durch Anheben des Kletterrahmens gehoben, bis ein neues Turmstück durch die offene Seite des Kletterrahmens eingesetzt werden kann, das dann in übliche Weise mit dem Kranoberteil und/oder dem oder den Turmstücken verbunden werden kann. Zum Heben wird der Pressenschuh mittig auf den oberen Querstab eines Kletterverbandes des Turmstücks abgesenkt, wobei sich die mit dem Pressenschuh verbundene Klettertraverse auf den Eckstielen des Turmstücks abstützt, so daß der Querstab nur in vertikaler Richtung belastet wird und die Horizontalkräfte über die Klettertraverse in die Eckstiele eingeleitet werden. Der Kletterverband der Turmstücke besteht jeweils aus einem oberen Querstab mit mittlerem Knotenpunkt, in dem sich die oberen Enden zweier Diagonalstäbe treffen, deren unteren Enden an den Enden des nächstfolgenden unteren Querstabes im Bereich der Eckstiele angelenk bzw. befestigt sind. Nach dem Heben des Kletterrahmens um einen Schritt fällt der Stützschuh der Stütze ein und stützt sich auf dem Querstab des Kletterverbandes ab, nachdem die Presse etwas eingefahren ist, so daß der Stützschuh auf dem Querstab fest zur Anlage kommt. Die mit der Stütze verbunden Quertraverse stützt sich auf den Eckstielen des Kletterrahmens ab, s daß der Querstab des Kletterverbandes des Turmstücks wiederum nur Vertikalkräfte und keine horizontalen Stützkräfte aufnehmen muß. Sobald der Stützschuh auf dem Querstab fest zur Auflage gekommen ist kann die hydraulische Presse eingefahren werden, so daß sich der Pressenschuh zum Hub des nächsten Schrittes auf den nächst höheren Querstab auflegen kann.Climbing devices of this type are usually used on tower cranes, the towers of which support the upper crane parts, depending on the construction progress, have to be extended at intervals by installing a tower section. Conversely, when dismantling the tower cranes, it is again necessary to lower the upper crane part by removing individual tower sections. Climbing devices of the type specified at the outset are known for installing and removing tower sections. In order to lift the upper crane part or a tower section to install a tower section, the climbing frame is attached to the base of the upper crane part, e.g. the slewing ring support, or the lower end of the tower section to be lifted, whereby the connection of the upper crane part to the next tower section or the connection between the two tower sections is solved. Then the upper crane part or the detached tower section is gradually lifted by lifting the climbing frame until a new tower section can be inserted through the open side of the climbing frame, which can then be connected in the usual way to the upper crane section and / or the tower section or sections. For lifting, the press shoe is lowered in the middle of the upper crossbar of a climbing association of the tower section, the climbing crossbar connected to the press shoe being supported on the corner posts of the tower section, so that the crossbar is only loaded in the vertical direction and the horizontal forces via the climbing crossbar into the corner posts be initiated. The climbing structure of the tower sections consists of an upper crossbar with a central node, where the upper ends of two diagonal bars meet, the lower ends of which are articulated or fastened to the ends of the next lower crossbar in the area of the corner posts. After lifting the climbing frame by one step, the support shoe of the support falls in and is supported on the crossbar of the climbing association after the press has been retracted somewhat, so that the support shoe comes to rest firmly on the crossbar. The connected to the prop Crossbar is supported on the corner posts of the climbing frame, s that the crossbar of the climbing association of the tower section in turn only has to absorb vertical forces and no horizontal supporting forces. As soon as the support shoe on the crossbar has come to rest firmly, the hydraulic press can be retracted so that the press shoe can lay on the next higher crossbar to lift the next step.

Die Ausgestaltung und die Arbeitsweise der eingangs beschriebenen Klettereinrichtung ist beispielsweise aus dem Liebherr-Prospekt "Die großen HC-Krane", LBC-0181-A-01/90-2.d sowie die zu den HC-Kranen gehörige Betriebsanleitung bekannt.The design and mode of operation of the climbing device described at the outset is known, for example, from the Liebherr brochure "The large HC cranes", LBC-0181-A-01 / 90-2.d and the operating instructions belonging to the HC cranes.

Die bekannte Klettereinrichtung ist für die Klettertürme üblicher Drehkräne ausreichend. Werden die Klettertürme bzw. die zu hebenden Kranoberteile jedoch größer und schwerer, können die Abstützkräfte der Stützschuhe sowie der Pressenschuhe der Stützen und hydraulische Pressen so groß werden, daß Verformungen der Querstäbe der Kletterverbände zu befürchten sind.The known climbing device is sufficient for the climbing towers of conventional rotating cranes. However, if the climbing towers or the upper crane parts to be lifted are larger and heavier, the support forces of the support shoes and the press shoes of the supports and hydraulic presses can become so great that deformations of the crossbars of the climbing associations are to be feared.

Besonders schwere, große und hohe Türme sind beispielsweise Kamin-Türme. Zum Bau derartiger Türme sind obere, auch Kräne tragend Arbeitsbühnen und Plattformen erforderlich, die auf Türmen abgestütz werden müssen, die ebenfalls entsprechend dem Baufortschritt verlängert werden müssen. Würden für derartige Türme übliche Klettereinrichtungen verwendet werden, müßten die Türme, zumindest aber die Kletterverbände der einzelnen Turmstücke, nur deshalb wesentlich verstärkt werden, damit diese die Stützkräfte der Klettereinrichtung aufnehmen können. Es wäre also erforderlich, die einzelnen Turmstücke nur deshalb überzudimensionieren, um mit einer Klettereinrichtung den Turm verlängernde Turmstücke einbauen zu können.Chimney towers are particularly heavy, large and tall towers. To build such towers, upper work platforms and platforms that also carry cranes are required, which must be supported on towers, which must also be extended in accordance with the construction progress. If conventional climbing devices were used for such towers, the towers, or at least the climbing associations of the individual tower sections, would only have to be significantly strengthened so that they can absorb the supporting forces of the climbing device. It would therefore be necessary to oversize the individual tower sections only in order to be able to install tower sections that extend the tower with a climbing device.

Aufgabe der Erfindung ist es, eine Klettereinrichtung zu schaffen, die ohne Überdimensionierung des Turms auch dann ein Klettern gestattet, wenn der Turm auf größere Stützkräfte ausgelegt ist.The object of the invention is to provide a climbing device which allows climbing without over-dimensioning the tower even if the tower is designed for greater supporting forces.

Erfindungsgemäß wird diese Aufgabe bei einer Klettereinrichtung nach dem Oberbegriff des Patentanspruchs 1 durch zwei in Tandem angeordnete Klettereinrichtung gelöst, die in einem den Turm umfassenden Führungsstück eingebaut sind.According to the invention, this object is achieved in a climbing device according to the preamble of claim 1 by two climbing devices arranged in tandem, which are installed in a guide piece comprising the tower.

Bei einer bevorzugten Ausführungsform nach dem Oberbegriff des Patentanspruchs 2 ist vorgesehen, daß an zwei einen Abstand voneinander aufweisenden Querstäben des Kletterrahmens zwei hydraulische Pressen mit Pressenschuhen und Klettertraversen angelenkt sind und daß zwei auf unterschiedliche Querstäbe des Kletterverbandes des oder der Turmstücke abstützbare Stützen mit Stütztravesen vorgesehen sind, deren Stützschuhe mit einer Ausgleichseinrichtung versehen sind, die die Stützkräfte gleichmäßig au beide Stützschuhe verteilt.In a preferred embodiment according to the preamble of claim 2 it is provided that two hydraulic presses with press shoes and climbing traverses are articulated on two spaced-apart crossbars of the climbing frame and that two supports with supporting trusses are provided which can be supported on different crossbars of the climbing association of the tower part or parts whose support shoes are provided with a compensation device that distributes the support forces evenly on both support shoes.

Die Erfindung geht zunächst von der Erkenntnis aus, daß allein eine Verdoppelung der hydraulischen Pressen und der Stützen mit Stützschuhen nicht zu größeren Hubkräften des Kletterrahmens führt, weil die Hubkräfte jeweils über zwei Stützschuhe bzw. Pressenschuhe in die Querstäbe der Kletterverbände der Turmstücke eingeleitet werden müssen und weil zwei Abstützstellen jeweils zu statisch unbestimmten Systemen in der Weise führen, daß eine gleichmäßige Abstützung erst dann gewährleistet ist, wenn es aufgrund von Verformungen der Querstäbe zu einem Kräfteausgleich gekommen ist. Während sich der Kräfteausgleich bei den Pressenschuhen hydraulisch durch eine Verbindung der Pressenzylinder erreichen läßt, ist dies bei den an in unterschiedlicher Höhe befindlichen Querstäben von Kletterverbänden angreifenden Stützschuhen der Stützen nicht möglich
Die Erfindung besteht somit nicht lediglich in einer Verdoppelung der hydraulische Pressen und der Stützen mit Stützschuhen, sondern insbesondere darin daß für die Stützschuhe eine Ausgleichsvorrichtung vorgesehen ist, die die Stützkräfte gleichmäßig auf beide Stützschuhe verteilt. Durc diese gleichmäßige Verteilung der Stützkräfte ist es möglich, ohne Überdimensionierung der Turmstücke eine Klettereinrichtung mit einem Kletterrahmen einzusetzen, der mit jeweils zwei hydraulischen Presse und Stützen mit endseitigen Stützschuhen versehen ist, die jeweils a unterschiedlichen Querstäben der Kletterverbände des oder der Turmstücke angreifen.The invention is based initially on the knowledge that simply doubling the hydraulic presses and the supports with support shoes does not lead to greater lifting forces of the climbing frame, because the lifting forces must be introduced into the cross bars of the climbing associations of the tower sections via two support shoes or press shoes because two support points each lead to statically indeterminate systems in such a way that a uniform support is only guaranteed when a force balance has occurred due to deformations of the cross bars. While the balancing of forces in the press shoes can be achieved hydraulically by connecting the press cylinders, this is not possible in the case of the support shoes of the supports, which act on cross bars of climbing associations located at different heights
The invention thus consists not only in doubling the hydraulic presses and the supports with support shoes, but in particular in that a compensation device is provided for the support shoes, which distributes the support forces evenly over both support shoes. This uniform distribution of the supporting forces makes it possible to use a climbing device with one without overdimensioning the tower sections To use climbing frame, which is provided with two hydraulic presses and supports with end support shoes, each of which attacks a different crossbars of the climbing associations of the tower section or sections.

Nach einer besonders bevorzugten Ausführungsform ist vorgesehen, daß die Ausgleichsrichtung aus einer an einem oberen Querstab des Kletterrahmens angelenkten Stütze besteht, an deren unteres Ende ein wippenartiges Ausgleichsstück angelenkt ist, dessen innerer Teil einen oberen Stützschuh bildet und an dessem äußeren Teil eine unter Stütze mit Stütztraverse und Stützschuh angelenkt ist, wobei die gelenkige Verbindung des Ausgleichsstücks mit der oberen Stütze zwischen dem oberen Stützschuhteil und dem Gelenk der unteren Stütze liegt. Bei dieser Ausgleichseinrichtung wird eine gleichmäßige Verteilung der Stützkräfte auf beide Schuhe durch das wippenartige Ausgleichsstück erreicht, das sich stets in der Weise ausrichtet, da die Stützkräfte gleichmäßig auf beide belasteten Querstäbe des Kletterverbandes eingeleitet werden. Zweckmäßigerweise liegt die gelenkige Verbindung des Ausgleichsstücks mit der oberen Stütze etwa mittig oberhalb zwischen dem oberen Stützschuhteil und der gelenkige Verbindung mit der unteren Stütze.According to a particularly preferred embodiment, it is provided that the compensation direction consists of a support articulated on an upper crossbar of the climbing frame, at the lower end of which a rocker-type compensation piece is articulated, the inner part of which forms an upper support shoe and on the outer part of which a support with support cross-member and the support shoe is articulated, the articulated connection of the compensation piece with the upper support being between the upper support shoe part and the joint of the lower support. In this compensation device, a uniform distribution of the support forces on both shoes is achieved by the rocker-type compensation piece, which is always aligned in such a way that the support forces are applied evenly to both loaded cross bars of the climbing association. The articulated connection of the compensating piece with the upper support is expediently located approximately centrally between the upper support shoe part and the articulated connection with the lower support.

Nach einer anderen Ausgestaltung der Erfindung ist vorgesehen, daß die beiden Stützen aus hydraulischen Kolben-Zylinder-Einheiten bestehen, deren Zylinder mit einer Ausgleichsleitung versehen sind und deren Kolbenstangen die Stützschuhe tragen. Bei dieser Ausgestaltung wird die Einleitung gleichgroßer Kräfte durch die Stützschuhe dadurch sichergestellt, daß sich in den Zylinderkammern der beiden Hydraulikzylinder gleichgroße Drücke in der Hydraulikflüssigkeit einstellen. Falls erforderlich, können die Zylinder mit Einrichtungen zum Ausgleich von Leckölverlusten versehe werden.According to another embodiment of the invention it is provided that the two supports consist of hydraulic piston-cylinder units, the cylinders of which are provided with a compensating line and the piston rods of which support shoes. In this embodiment, the introduction of equally large forces is ensured by the support shoes in that pressures of the same size occur in the hydraulic fluid in the cylinder chambers of the two hydraulic cylinders. If necessary, the cylinders can be equipped with devices to compensate for leakage oil losses.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt

Fig. 1
eine perspektivische Darstellung eines von dem Kletterrahmen einer Klettereinrichtung eingefaßten Turmstücks,
Fig. 2
eine der Fig. 1 entsprechende perspektivische Darstellung aus einem anderen Blickwinkel, in der der Kletterrahmen und das von diesem eingefaßte Turmstück im Längsschnitt dargestellt sind und
Fig. 3
einen vergrößerten Ausschnitt aus Fig. 2.
An embodiment of the invention is explained below with reference to the drawing. In this shows
Fig. 1
1 shows a perspective illustration of a tower piece enclosed by the climbing frame of a climbing device,
Fig. 2
a perspective view corresponding to FIG. 1 from a different angle, in which the climbing frame and the tower section enclosed by it are shown in longitudinal section and
Fig. 3
3 shows an enlarged detail from FIG. 2.

Das von dem Kletterrahmen 10 der Klettereinrichtung eingefaßte Turmstück 1 weist einen etwa quadratischen Querschnitt auf und besteht aus den parallel zueinander verlaufenden Eckstielen 2,3,4,5, die durch Stäbe miteinander verbunden sind. Die zwischen den Eckstielen 2,4 befindlichen Stäbe bilden den Kletterverband, der aus parallel zueinander verlaufenden und mit den Eckstielen 2,4 verbundenen Querstäben 6 und Diagonalstäben 7,8 besteht, deren obere Enden jeweils mit den Querstäben 6 in deren mittleren Knotenpunkt 9 verbunden sind und deren unteren Enden im Bereich der Eckstiele 2,4 mit diesen und den darunter liegenden Querstäben 6 verbunden sind. Auf diese Weise wird ein Kletterverband geschaffen, von dem Querstäb 6 in ihrem mittleren Bereich die von den Stützschuhen und Pressenschuhen übertragenen vertikalen Stützkräfte aufzunehmen vermögen.The tower section 1 enclosed by the climbing frame 10 of the climbing device has an approximately square cross section and consists of the corner posts 2, 3, 4, 5 which run parallel to one another and are connected to one another by rods. The bars located between the corner posts 2.4 form the climbing association, which consists of parallel bars 6 and diagonal bars 7, 8 connected to the corner posts 2.4 and diagonal bars 7.8, the upper ends of which are each connected to the cross bars 6 at their central node 9 and whose lower ends in the area of the corner posts 2, 4 are connected to the latter and the transverse bars 6 below. In this way, a climbing bandage is created, from which cross bars 6 are able to absorb the vertical support forces transmitted from the support shoes and press shoes in their central region.

Die übrigen drei Seiten des Turmstücks werden durch Diagonalstäbe 11,12 gebildet, die zick-zack-förmig zwischen den Eckstielen verlaufen und in gemeinsamen Knotenpunkten miteinander und mit den Eckstielen verbunden sind.The remaining three sides of the tower section are formed by diagonal bars 11, 12, which run in a zigzag shape between the corner posts and are connected to one another and to the corner posts at common nodes.

Im unteren und oberen Endbereich sind die Eckstiele durch Querstäbe miteinander verbunden, die in einer gemeinsamen Ebene liegen.In the lower and upper end area, the corner posts are connected to one another by cross bars that lie in a common plane.

Der das Turmstück 1 einfassende Kletterrahmen besteht ebenfalls aus vier Eckstielen 14,15,16,17, die durch quer- und diagonalverlaufende Stäbe miteinander verbunden sind. Auf seiner dem Kletterverband 6,7, des Turmstücks 1 gegenüberliegende Seite weist der Kletterrahmen 10 einen offenen Bereich 18 auf, der dem Einschieben von Turmstücken bzw. dem Ausfahren von Turmstücken dient. Unterhalb dieses offenen Bereiches kann der Kletterrahmen 10 durch lösbare Stäbe miteinander verbunden sein, die sich entfernen lassen, damit ggf. nach der Montage die Klettereinrichtung mit Kletterrahmen nach Entfernen der Stäbe seitwärts ausgehoben werden kann.The climbing frame enclosing the tower section 1 also consists of four corner posts 14, 15, 16, 17, which run transversely and diagonally Rods are interconnected. On its side opposite the climbing association 6, 7, of the tower section 1, the climbing frame 10 has an open area 18, which is used for inserting tower sections or extending tower sections. Below this open area, the climbing frame 10 can be connected to one another by detachable rods which can be removed so that, if necessary, the climbing device with the climbing frame can be lifted sideways after removal of the rods after assembly.

Auf der Seite des Kletterverbandes des Turmstücks 1 ist der Kletterrahmen mit zwei Querstäben 21,22 versehen, die in mittleren Knotenpunkten jeweils mit den unteren Enden zweier Diagonalstäbe 22,23 verbunden sind, deren oberen Enden im Bereich darüberliegender Querstäbe mit diesen und den Eckstielen 14,17 verbunden sind. Die au diese Weise mittig abgestützten Querstäbe 21,22 weisen an ihren Unterseiten Gelenkstücke auf, an die die Zylinder 26,27 von hydraulischen Pressen angelenkt sind, deren Kolbenstangen 28,29 Pressenschuhe 30,31 tragen, mit deren äußeren Enden Klettertraversen 32,33 mittig verbunden sind, die an ihren Enden mit nach unten ragenden Schenkeln 34 versehen sind.On the side of the climbing association of the tower section 1, the climbing frame is provided with two cross bars 21, 22, which are connected at middle nodes to the lower ends of two diagonal bars 22, 23, the upper ends of which in the area of the cross bars above them and the corner posts 14, 17 are connected. The transverse rods 21, 22, which are supported in this way in the center, have joint pieces on their undersides, to which the cylinders 26, 27 are articulated by hydraulic presses, the piston rods of which 28.29 carry press shoes 30, 31, with the outer ends of climbing beams 32, 33 in the center are connected, which are provided at their ends with downwardly projecting legs 34.

Beidseits des Zylinders 26 der oberen Presse sind im mittleren Bereich des Querstabes 20 profilierte Stützstäbe 38,39 angelenkt, an deren unteren Enden wippenartige Ausgleichsstücke 40,41 angelenkt sind. Diese wippenartigen Ausgleichsstücke 40,43 weisen etwa die Grundform eines gleichschenkeligen Dreiecks auf, wobei die Stützstäbe 38,39 im Bereich der Spitzen der etwa dreiecksförmigen Ausgleichsstücke angelenkt sind. Der innere Teil der Basisfläche 42 des Ausgleichsstücks bildet einen Stützschuh, der sic auf einem Querstab des Kletterverbandes des Turmstücks 1 abstützt. A den äußeren Bereichen der beiden dreiecksförmigen Ausgleichsstücke sind um die Gelenkbolzen 44,45 Stützen 46,47 gelagert, deren unteren Enden Stützschuhe bilden, die sich auf einem unteren Querstab 48 des Kletterverbandes des Turmstücks abstützen. Die Stützen 38,39 und 46,47 sind oberhalb der Ausgleichsstücke 40,41 bzw. oberhalb der Stützschuhe mit Stütztraversen 50,51 versehen, die am besten aus Fig 1 ersichtlich sind und die sich auf den Eckstielen 14,17 des Kletterrahmens abstützen.On both sides of the cylinder 26 of the upper press 20 profiled support rods 38, 39 are articulated in the central region of the cross bar, at the lower ends of which rocker-like compensating pieces 40, 41 are articulated. These rocker-like compensating pieces 40, 43 have approximately the basic shape of an isosceles triangle, the support rods 38, 39 being articulated in the region of the tips of the approximately triangular-shaped compensating pieces. The inner part of the base surface 42 of the compensating piece forms a support shoe which is supported on a cross bar of the climbing association of the tower piece 1. A the outer areas of the two triangular compensating pieces are supported around the hinge pins 44, 45, supports 46, 47, the lower ends of which form support shoes which are supported on a lower cross bar 48 of the climbing association of the tower piece. The supports 38, 39 and 46, 47 are provided above the compensating pieces 40, 41 and above the support shoes with support cross members 50, 51, which are best shown in FIG 1 can be seen and which are supported on the corner posts 14, 17 of the climbing frame.

Der Abstand der Ausgleichsstücke 40,41 von den unteren Stützschuhe bildenden Enden der Stützen 46,47 ist so gewählt, daß sich die Stützschuhteile der Ausgleichsstücke 40,41 und die Stützschuhe der Stützen 46,47 auf aufeinanderfolgenden Querstäben des Kletterverbandes abstützen.The distance between the compensating pieces 40, 41 from the ends of the supports 46, 47 forming the lower support shoes is chosen such that the support shoe parts of the compensating pieces 40, 41 and the support shoes of the supports 46, 47 are supported on successive cross bars of the climbing association.

Die dreiecksförmigen Ausgleichsstücke 40,41 bilden wippenartige Teile, die um die obere gelenkige Verbindung mit den Stützen 38,39 i der Weise schwenken können, daß der innere Stützschuhteil der Basis und die unteren Stützstäbe 46,47 mit den Stützschuhen etwa gleiche Stützkräfte aufnehmen.The triangular compensating pieces 40, 41 form rocker-like parts which can pivot about the upper articulated connection with the supports 38, 39 in such a way that the inner support shoe part of the base and the lower support rods 46, 47 absorb approximately the same support forces with the support shoes.

Die Klettertraversen 32,33 sind an den Pressenschuhen 30,31 derart befestigt, daß die Pressen pendelartig mit Schräglage nach innen hin hängen. Entsprechend sind auch die Stütztraversen 50,51 an den Stützen 38,39 und 46,47 derart befestigt, daß auch diese in einer nach innen hin gerichteten Schräglage hängen. Auf diese Weise finden die Pressenschuhe und die Stützschuhe jeweils ihre Stützstellung auf den Querstäben des Kletterverbandes, ohne daß diese eingehoben werde müßten. Durch die Abstützung der Klettertraversen und der Stütztraversen auf den Eckstielen des Turmstücks und des Kletterrahmens ist gewährleistet, daß die Querstäbe des Kletterverbandes des Sturmstücks nur mit vertikalen Stützkräften und nicht auch mit in horizontaler Richtung wirkenden Biegekräften beaufschlagt werden.The climbing beams 32, 33 are attached to the press shoes 30, 31 in such a way that the presses hang in a pendulum-like manner with an inclined position towards the inside. Correspondingly, the support cross members 50, 51 are fastened to the supports 38, 39 and 46, 47 in such a way that they too hang in an inclined position facing inwards. In this way, the press shoes and the support shoes each find their support position on the cross bars of the climbing association, without these having to be lifted. By supporting the climbing crossbars and the supporting crossbars on the corner posts of the tower section and the climbing frame, it is ensured that the crossbars of the climbing association of the storm section are only subjected to vertical supporting forces and not also to bending forces acting in the horizontal direction.

Claims (5)

Klettereinrichtung zum Klettern großer Klettergewichte bei Turmdrehkranen, Arbeitsbühnen o.dgl.,

gekennzeichnet durch

zwei im Tandem angeordnete Klettereinrichtungen, die in einem de Turm umfassenden Führungsstück eingebaut sind.Climbing device for climbing large weights on tower cranes, working platforms or the like,

marked by

two climbing devices arranged in tandem, which are installed in a guide piece comprising de tower. Klettereinrichtung nach Anspruch 1, zum Einsetzen und Entfernen von Turmstücken in bzw. aus Türmen von Turmdrehkranen, Arbeitsbühnen o.dgl.,

bestehend aus einem an das zu hebende oder abzusenkende Teil, beispielsweise ein Kranoberteil, einen Bühnensockel oder ein Turmstück, anbaubaren, ein Führungsstück bildenden und den Turm einfassenden Kletterrahmen mit einer zumindest teilweisen offenen Einschubseite,

mit einer an einem Querstab des Stabverbandes angelenkten hydraulischen Presse, deren Kolbenstange einen Pressenschuh mit einer auf den Eckstielen eines Turmstücks abstützbaren Klettertraverse trägt und

mit einer an dem Querstab angelenkten Stütze mit einer auf Eckstielen abstützbaren Stütztraverse und einem endseitigen Stützschuh,

dadurch gekennzeichnet,

daß an zwei einen Abstand voneinander aufweisenden Querstäben (20,21) des Kletterrahmens (10) zwei hydraulische Pressen (26,27) mit Pressenschuhen (30,31) und Klettertraversen (32,33) angelenkt sind und daß zwei auf unterschiedliche Querstäbe (6) des Kletterverbandes (6,7,8) des oder der Turmstücke (1) abstützbare Stützen mit Stütztraversen (50,51) vorgesehen sind, deren Stützschuhe mit einer Ausgleichseinrichtung versehen sind, die die Stützkräfte gleichmäßig auf beide Stützschuhe verteilt.Climbing device according to claim 1, for inserting and removing tower pieces in or from towers of tower cranes, working platforms or the like,

Consisting of a part to be lifted or lowered, for example an upper crane part, a stage base or a tower piece, attachable, forming a guide piece and enclosing the tower climbing frame with an at least partially open insertion side,

with a hydraulic press articulated on a crossbar of the rod assembly, the piston rod of which carries a press shoe with a climbing traverse that can be supported on the corner posts of a tower section, and

with a support articulated on the crossbar with a support cross-piece that can be supported on corner posts and an end-side support shoe,

characterized,

that two hydraulic presses (26, 27) with press shoes (30, 31) and climbing beams (32, 33) are articulated on two cross bars (20, 21) of the climbing frame (10), and that two are attached to different cross bars (6 ) of the climbing association (6, 7, 8) of the tower section (s) which can be supported with support crossbeams (50, 51) are provided, the support shoes of which are provided with a compensating device which distributes the support forces evenly over both support shoes. Klettereinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Ausgleichseinrichtung aus einer an einem oberen Querstab (20) des Kletterrahmens (10) angelenkten Stütze (38,39) besteht, an deren unteres Ende ein wippenartiges Ausgleichsstück (40,41) angelenkt ist, dessen inneren Teil einen oberen Stützschuh bildet und an dessen äußerem Teil eine untere Stütze (46,47) mit Stütztraverse und Stützschuh angelenkt ist, wobei die gelenkige Verbindung des Ausgleichsstücks (40,41) mit der oberen Stütze (38,39) zwischen dem oberen Stützschuhteil und dem Gelenk (44,45) der unteren Stütze (46,47) liegt.Climbing device according to claim 2, characterized in that the compensating device consists of a support (38, 39) articulated on an upper crossbar (20) of the climbing frame (10), at the lower end of which a rocker-like compensating piece (40, 41) is articulated, the inner part forms an upper support shoe and on the outer part of which a lower support (46, 47) is articulated with support cross-piece and support shoe, the articulated connection of the compensating piece (40, 41) with the upper support (38, 39) between the upper support shoe part and the joint (44, 45) of the lower support (46, 47). Klettereinrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die gelenkige Verbindung des Ausgleichsstücks (40,41) mit der oberen Stütze (38,39) etwa mittig oberhalb zwischen dem Stützschuhteil und der gelenkigen Verbindung (44,45) mit der unteren Stütze (46,47) liegt.Climbing device according to claim 2 or 3, characterized in that the articulated connection of the compensating piece (40, 41) with the upper support (38, 39) approximately in the middle between the support shoe part and the articulated connection (44, 45) with the lower support ( 46.47). Klettereinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die beiden Stützen aus hydraulischen Kolben-Zylinder-Einheiten bestehen, deren Zylinder durch eine Ausgleichsleitung miteinander verbunden sind und deren Kolbenstangen die Stützschuhe tragen.Climbing device according to claim 2, characterized in that the two supports consist of hydraulic piston-cylinder units, the cylinders of which are connected to one another by a compensating line and the piston rods of which support shoes.
EP92105834A 1991-06-04 1992-04-03 Device for the stepwise raising of heavy weights for tower cranes or working platforms Expired - Lifetime EP0516938B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4118299 1991-06-04
DE4118299 1991-06-04
DE4135961 1991-10-31
DE4135961A DE4135961A1 (en) 1991-06-04 1991-10-31 CLIMBING DEVICE FOR CLIMBING LARGE CLIMBING WEIGHTS IN TURN TURNING CRANES, WORKING PLATFORMS OR THE LIKE.

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EP0516938A1 true EP0516938A1 (en) 1992-12-09
EP0516938B1 EP0516938B1 (en) 1994-09-07

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DE (2) DE4135961A1 (en)

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CN105460801A (en) * 2015-09-30 2016-04-06 徐州建机工程机械有限公司 Plane six-bar web member joint plate connecting structure of tower crane
CN105480876A (en) * 2016-01-04 2016-04-13 徐州建机工程机械有限公司 Inner jacking mechanism of tower crane
US10934140B2 (en) 2016-09-15 2021-03-02 Liebherr Werk Biberach Gmbh Tower crane
CN107055367A (en) * 2017-06-02 2017-08-18 胡建锋 The central jack-up system of internally climbing tower crane
CN110733988A (en) * 2019-09-06 2020-01-31 北京交通大学 method for improving safety of temporary support frame of internal climbing arm tower crane
CN110733988B (en) * 2019-09-06 2020-09-11 北京交通大学 Method for improving safety of temporary support frame of internal climbing arm tower crane
CN111691688A (en) * 2020-06-16 2020-09-22 中国建筑股份有限公司 Jacking supporting device for building construction and using method

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DE4135961A1 (en) 1992-12-10
DE59200457D1 (en) 1994-10-13
JPH05178566A (en) 1993-07-20
EP0516938B1 (en) 1994-09-07

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