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EP1263670B1 - Ring lift crane - Google Patents

Ring lift crane Download PDF

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Publication number
EP1263670B1
EP1263670B1 EP01913527A EP01913527A EP1263670B1 EP 1263670 B1 EP1263670 B1 EP 1263670B1 EP 01913527 A EP01913527 A EP 01913527A EP 01913527 A EP01913527 A EP 01913527A EP 1263670 B1 EP1263670 B1 EP 1263670B1
Authority
EP
European Patent Office
Prior art keywords
lift crane
ring
ring lift
lattice tower
jib
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.)
Expired - Lifetime
Application number
EP01913527A
Other languages
German (de)
French (fr)
Other versions
EP1263670A2 (en
Inventor
Eberhard Schuffert
Rüdiger Zollondz
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.)
Terex Demag GmbH and Co KG
Original Assignee
Terex Demag GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Terex Demag GmbH and Co KG filed Critical Terex Demag GmbH and Co KG
Publication of EP1263670A2 publication Critical patent/EP1263670A2/en
Application granted granted Critical
Publication of EP1263670B1 publication Critical patent/EP1263670B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
    • 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
    • B66C23/84—Slewing gear

Definitions

  • the invention relates to a ring lift crane according to the preamble of Claim 1.
  • a generic ring hoist crane is known from DE 199 14 195 A1.
  • This Known ring lift crane is with a stand-up, a circular roadway and provided with several interconnectable segments ring, within of which an undercarriage is arranged, which is connected to and rotatable therewith several superstructures with winches and two at a parallel distance has mutually opposite bridge girders which in two opposite to each other Provide end areas with an adapter and cross members with the The uppercarriage can be bolted and deboled.
  • the adapters are supported in the end area the adapter arranged rollers on the circular lane of the ring, the The center of the ring or undercarriage forms the axis of rotation and the rear Adapter for holding a counterweight and the front adapter for holding a linkable boom in the form of at least one main boom a lattice mast is formed and means for generating the rotational movement of the Ring lift cranes are provided and the undercarriage with stiffening struts different sections of the ring is connected.
  • This known ring lift crane is limited in terms of its lifting capacity, since it does not have any can transmit larger forces.
  • the object of the invention is to provide a ring lift crane of the generic type, whose load capacity can be significantly increased in a simple manner.
  • a lattice tower component (Main boom, auxiliary boom, mast, luffing support) one at least over half Length of the lattice mast component extending lateral stiffener is provided.
  • the main boom preferably has a lateral stiffening, the foot end like the foot end of the main boom articulated with the front adapter and its head end with an element of the main boom is firmly connected. In the sense of the greatest possible effect, the lateral stiffening along the entire length of the main boom, so that head end of the stiffener with the head piece of the main boom connected is.
  • the proposed principle of the arrangement of a lateral stiffener is also suitable for other lattice boom components such as mast, auxiliary boom and luffing support from Advantage.
  • the lateral stiffening consists of at least one guy element right and left at a distance and parallel to the respective lattice tower component and via connecting elements with the respective lattice mast element in certain Distances is connected. In the sense of a particularly effective stiffening can it would be advantageous if two bracing elements were provided instead of one on each side are.
  • the connection guy element with the lattice mast element is preferably as isosceles triangle, the distance of the guy element to the lattice mast element at least half the width of the lattice mast element equivalent. Depending on the design of the overall construction, the distance can also be the second - 4 times the width.
  • the proposed arrangement leads to a stiffening of the respective Lattice boom component, preferably the main boom in both side directions, the arrangement when using rods or tubes as anchoring element is resilient to tension and pressure.
  • Load increases after another Feature of the invention, alternatively to a lateral bracing, the formation of the Masts as a double mast, whose foot pieces are articulated with the front adapter are connected.
  • a combination double main boom without lateral stiffening in connection with an auxiliary boom, which with a lateral stiffening is provided.
  • Figure 1 shows a perspective view of an embodiment of a Ring lift cranes designed according to the invention. It has a stand-up ring 2 on, which is composed of individual segments not shown here. Within the ring 2, an undercarriage 3 is arranged on which a rotatable Superstructure 4 is mounted. On the superstructure 4 there are several winches 7, 8 in one Row arranged ( Figure 5). In this embodiment, the superstructure 4 is over Cross member 9,10 with two extending over the ring 2 parallel to each other lying bridge girders 11, 12 connected. In both end areas of the two Bridge supports 11, 12 are each provided with an adapter 13, 14, which can only be used here support indicated rollers 16, 16 'on the circular path of the ring 2.
  • the adapter 13 on the left in FIG. 5 serves to accommodate a Main boom 17 and in this embodiment a double mast 18, 18 '. Alternatively, a single mast with lateral stiffening could also be provided.
  • the articulation points 19, 19 'for the main boom 17 and the articulation points 20, 20', 21, 21 ' for the double mast 18, 18 'there are adapters 13 on the left in FIG. 5 located.
  • the adapter 14 on the right here is for receiving the Counterweight 22,22 'formed.
  • the boom in this embodiment consists of the one already mentioned Main boom 17 and the double mast 18, 18 '.
  • the double mast 18, 18 ' is on the one hand via a length-adjustable guying 23 with the head piece 24 of the Main boom 17 and on the other hand via a fixed guy 25.25 'with Counterweight 22 connected.
  • a lateral stiffening ( Figure 2-4). This consists of a guy element 26, 26 ', which Connecting elements 27, 27 'with the respective lattice element 28 of the main boom connected is.
  • the head-side end 30,30 'of the lateral stiffening is with the head piece 24 of Main boom 17 connected.
  • the foot end 31,31 ' is with the front Adapter 13 articulated.

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

Description

Die Erfindung betrifft einen Ringliftkran gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a ring lift crane according to the preamble of Claim 1.

Ein gattungsbildender Ringliftkran ist aus der DE 199 14 195 A1 bekannt. Dieser bekannte Ringliftkran ist mit einem aufständerbaren, eine Kreisfahrbahn bildenden und mehrere miteinander verbindbare Segmente aufweisenden Ring versehen, innerhalb dessen ein Unterwagen angeordnet ist, der einen damit drehbar verbundenen und mehrere Winden aufweisenden Oberwagen sowie zwei im parallelen Abstand zueinander liegende Brückenträger aufweist, die in zwei einander gegenüberliegenden Endbereichen mit je einem Adapter versehen und über Querträger mit dem Oberwagen ver- und entbolzbar sind. Die Adapter stützen sich mittels im Endbereich der Adapter angeordneter Rollen auf der Kreisfahrbahn des Ringes ab, wobei der Mittelpunkt des Ringes bzw. des Unterwagens die Drehachse bildet und der hintere Adapter zur Aufnahme eines Gegengewichtes und der vordere Adapter zur Aufnahme eines anlenkbaren, mindestens einen Hauptausleger aufweisenden Auslegers in Form eines Gittermastes ausgebildet ist und Mittel zur Erzeugung der Drehbewegung des Ringliftkranes vorgesehen sind und der Unterwagen über Versteifungsstreben mit verschiedenen Abschnitten des Ringes verbunden ist.A generic ring hoist crane is known from DE 199 14 195 A1. This Known ring lift crane is with a stand-up, a circular roadway and provided with several interconnectable segments ring, within of which an undercarriage is arranged, which is connected to and rotatable therewith several superstructures with winches and two at a parallel distance has mutually opposite bridge girders which in two opposite to each other Provide end areas with an adapter and cross members with the The uppercarriage can be bolted and deboled. The adapters are supported in the end area the adapter arranged rollers on the circular lane of the ring, the The center of the ring or undercarriage forms the axis of rotation and the rear Adapter for holding a counterweight and the front adapter for holding a linkable boom in the form of at least one main boom a lattice mast is formed and means for generating the rotational movement of the Ring lift cranes are provided and the undercarriage with stiffening struts different sections of the ring is connected.

Dieser bekannte Ringliftkran ist bezüglich seiner Tragkraft begrenzt, da er keine größeren Kräfte übertragen kann.This known ring lift crane is limited in terms of its lifting capacity, since it does not have any can transmit larger forces.

Aufgabe der Erfindung ist es, einen Ringliftkran der gattungsmäßigen Art anzugeben, dessen Tragkraft in einfacher Weise signifikant gesteigert werden kann.The object of the invention is to provide a ring lift crane of the generic type, whose load capacity can be significantly increased in a simple manner.

Diese Aufgabe wird ausgehend vom Oberbegriff in Verbindung mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst. Vorteilhafte Weiterbildungen sind jeweils Gegenstand von Unteransprüchen. This task is based on the generic term in conjunction with the characterizing features of claim 1 solved. Advantageous further training are the subject of subclaims.

Nach der Lehre der Erfindung ist mindestens an einem Gittermastbauteil (Hauptausleger, Hilfsausleger, Mast, Wippstütze) eine wenigstens über die halbe Länge des Gittermastbauteiles sich erstreckende seitliche Versteifung vorgesehen. Vorzugsweise weist der Hauptausleger eine seitliche Versteifung auf, deren fußseitiges Ende wie das fußseitige Ende des Hauptauslegers gelenkig mit dem vorderen Adapter und deren kopfseitiges Ende mit einem Element des Hauptauslegers fest verbunden ist. Im Sinne eines möglichst großen Effektes erstreckt sich die seitliche Versteifung über die ganze Länge des Hauptauslegers, so dass das kopfseitige Ende der Versteifung mit dem Kopfstück des Hauptauslegers fest verbunden ist. Das vorgeschlagene Prinzip der Anordnung einer seitlichen Versteifung ist auch für andere Gittermastbauteile wie Mast, Hilfsausleger und Wippstütze von Vorteil. Die seitliche Versteifung besteht aus mindestens einem Abspannelement, das rechts und links im Abstand und parallel zum jeweiligen Gittermastbauteil angeordnet und über Verbindungselemente mit dem jeweiligen Gittermastelement in bestimmten Abständen verbunden ist. Im Sinne einer besonders wirkungsvollen Versteifung kann es von Vorteil sein, wenn pro Seite statt einer zwei Abspannelemente vorgesehen sind. Die Verbindung Abspannelement mit dem Gittermastelement ist vorzugsweise als gleichschenkliges Dreieck ausgebildet, wobei der Abstand des Abspannelementes zum Gittermastelement mindestens der halben Breite des Gittermastelementes entspricht. Je nach Auslegung der Gesamtkonstruktion kann der Abstand auch dem 2 - 4fachen der Breite entsprechen.According to the teaching of the invention is at least on a lattice tower component (Main boom, auxiliary boom, mast, luffing support) one at least over half Length of the lattice mast component extending lateral stiffener is provided. The main boom preferably has a lateral stiffening, the foot end like the foot end of the main boom articulated with the front adapter and its head end with an element of the main boom is firmly connected. In the sense of the greatest possible effect, the lateral stiffening along the entire length of the main boom, so that head end of the stiffener with the head piece of the main boom connected is. The proposed principle of the arrangement of a lateral stiffener is also suitable for other lattice boom components such as mast, auxiliary boom and luffing support from Advantage. The lateral stiffening consists of at least one guy element right and left at a distance and parallel to the respective lattice tower component and via connecting elements with the respective lattice mast element in certain Distances is connected. In the sense of a particularly effective stiffening can it would be advantageous if two bracing elements were provided instead of one on each side are. The connection guy element with the lattice mast element is preferably as isosceles triangle, the distance of the guy element to the lattice mast element at least half the width of the lattice mast element equivalent. Depending on the design of the overall construction, the distance can also be the second - 4 times the width.

Die vorgeschlagene Anordnung führt zu einer Versteifung des jeweiligen Gittermastbauteiles, vorzugsweise des Hauptauslegers in beide Seitenrichtungen, wobei bei Verwendung von Stäben oder Rohren als Abspannelement die Anordnung auf Zug und Druck belastbar ist. Traglaststeigernd wirkt sich nach einem weiteren Merkmal der Erfindung alternativ zu einer seitlichen Abspannung die Ausbildung des Mastes als Doppelmast aus, dessen Fußstücke gelenkig mit dem vorderen Adapter verbunden sind. Das gleiche gilt auch für eine Kombination Doppel-Hauptausleger ohne seitliche Versteifung in Verbindung mit einem Hilfsausleger, der mit einer seitlichen Versteifung versehen ist. The proposed arrangement leads to a stiffening of the respective Lattice boom component, preferably the main boom in both side directions, the arrangement when using rods or tubes as anchoring element is resilient to tension and pressure. Load increases after another Feature of the invention, alternatively to a lateral bracing, the formation of the Masts as a double mast, whose foot pieces are articulated with the front adapter are connected. The same applies to a combination double main boom without lateral stiffening in connection with an auxiliary boom, which with a lateral stiffening is provided.

Weitere Merkmale, Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung von einem in einer Zeichnung dargestellten Ausführungsbeispiel. Es zeigen:

Figur 1
eine perspektivische Darstellung eines erfindungsgemäß ausgebildeten Ringliftkranes
Figur 2
eine Teilvorderansicht des Hauptauslegers
Figur 3
im vergrößerten Maßstab den Kopfbereich des Hauptauslegers
Figur 4
im vergrößerten Maßstab den Fußbereich des Hauptauslegers mit Anbindung an den Adapter
Figur 5
eine Draufsicht des Ringliftkranes ohne Ausleger
Further features, advantages and details of the invention result from the following description of an embodiment shown in a drawing. Show it:
Figure 1
a perspective view of an inventive ring lift crane
Figure 2
a partial front view of the main boom
Figure 3
the head section of the main boom on an enlarged scale
Figure 4
on an enlarged scale the foot area of the main boom with connection to the adapter
Figure 5
a top view of the ring lift crane without boom

Figur 1 zeigt in einer perspektivischen Darstellung ein Ausführungsbeispiel eines erfindungsgemäß ausgebildeten Ringliftkranes. Er weist einen aufständerbaren Ring 2 auf, der aus hier nicht dargestellten einzelnen Segmenten zusammengesetzt ist. Innerhalb des Ringes 2 ist ein Unterwagen 3 angeordnet, auf dem drehbar ein Oberwagen 4 montiert ist. Auf dem Oberwagen 4 sind mehrere Winden 7, 8 in einer Reihe angeordnet (Figur 5). In diesem Ausführungsbeispiel ist der Oberwagen 4 über Querträger 9,10 mit zwei über den Ring 2 sich erstreckenden parallel zueinander liegenden Brückenträgern 11,12 verbunden. In beiden Endbereichen der beiden Brückenträger 11, 12 ist je ein Adapter 13,14 vorgesehen, die sich mittels hier nur angedeuteter Rollen 16, 16' auf der Kreisbahn des Ringes 2 abstützen. Dabei bildet der Mittelpunkt 15 des Ringes 2 bzw. des Unterwagens 3 die Drehachse für den Oberwagen 4. Der in Figur 5 links liegende Adapter 13 dient zur Aufnahme eines Hauptauslegers 17 und in diesem Ausführungsbeispiel eines Doppelmastes 18, 18'. Alternativ könnte auch ein einzelner Mast mit seitlicher Versteifung vorgesehen sein. Die Anlenkpunkte 19, 19' für den Hauptausleger 17 und die Anlenkpunkte 20, 20', 21, 21' für den Doppelmast 18,18' sind in Figur 5 am links liegenden Adapter 13 eingezeichnet. Der hier rechts liegende Adapter 14 ist zur Aufnahme des Gegengewichtes 22,22' ausgebildet.Figure 1 shows a perspective view of an embodiment of a Ring lift cranes designed according to the invention. It has a stand-up ring 2 on, which is composed of individual segments not shown here. Within the ring 2, an undercarriage 3 is arranged on which a rotatable Superstructure 4 is mounted. On the superstructure 4 there are several winches 7, 8 in one Row arranged (Figure 5). In this embodiment, the superstructure 4 is over Cross member 9,10 with two extending over the ring 2 parallel to each other lying bridge girders 11, 12 connected. In both end areas of the two Bridge supports 11, 12 are each provided with an adapter 13, 14, which can only be used here support indicated rollers 16, 16 'on the circular path of the ring 2. The forms Center 15 of the ring 2 or the undercarriage 3, the axis of rotation for the Superstructure 4. The adapter 13 on the left in FIG. 5 serves to accommodate a Main boom 17 and in this embodiment a double mast 18, 18 '. Alternatively, a single mast with lateral stiffening could also be provided. The articulation points 19, 19 'for the main boom 17 and the articulation points 20, 20', 21, 21 ' for the double mast 18, 18 'there are adapters 13 on the left in FIG. 5 located. The adapter 14 on the right here is for receiving the Counterweight 22,22 'formed.

Der Ausleger besteht in diesem Ausführungsbeispiel aus dem schon erwähnten Hauptausleger 17 und dem Doppelmast 18,18'. Der Doppelmast 18, 18' ist einerseits über eine längenveränderbare Abspannung 23 mit dem Kopfstück 24 des Hauptauslegers 17 und andererseits über je eine feste Abspannung 25,25' mit dem Gegengewicht 22 verbunden.The boom in this embodiment consists of the one already mentioned Main boom 17 and the double mast 18, 18 '. The double mast 18, 18 'is on the one hand via a length-adjustable guying 23 with the head piece 24 of the Main boom 17 and on the other hand via a fixed guy 25.25 'with Counterweight 22 connected.

Erfindungsgemäß ist der Hauptausleger 17 mit einer seitlichen Versteifung versehen (Figur 2 - 4). Diese besteht aus einem Abspannelement 26, 26', das über Verbindungselemente 27,27' mit dem jeweiligen Gitterelement 28 des Hauptauslegers verbunden ist. Die beiden Verbindungselemente 27,27' bilden mit der am Gitterelement 28 angeordneten Querstrebe, 29 ein gleichschenkliges Dreieck. Das kopfseitige Ende 30,30' der seitlichen Versteifung ist mit dem Kopfstück 24 des Hauptauslegers 17 verbunden. Das fußseitige Ende 31,31' ist mit dem vorderen Adapter 13 gelenkig verbunden.According to the main boom 17 is provided with a lateral stiffening (Figure 2-4). This consists of a guy element 26, 26 ', which Connecting elements 27, 27 'with the respective lattice element 28 of the main boom connected is. The two connecting elements 27, 27 'form with the Lattice element 28 arranged cross strut, 29 an isosceles triangle. The head-side end 30,30 'of the lateral stiffening is with the head piece 24 of Main boom 17 connected. The foot end 31,31 'is with the front Adapter 13 articulated.

Claims (16)

  1. Ring lift crane with a ring (2) which can be mounted on supports, forms a circular track, and has several segments which can be connected together, inside which ring is positioned a chassis (3), which has a superstructure (4) which can be connected to it in such a way that it is able to rotate and which has several winches, said superstructure being fitted with an adapter (13, 14) at each of two opposite end areas, and the adapters resting and running on the circular track of the ring (2) by means of rollers (16, 16') positioned in the end area of the adapter, the centre point of the ring or the chassis (3) forming the axis of rotation, and the rear adapter ( 14) being made to accept a counterweight (22, 22'), and the front adapter (13) being made to accept a jib, in the form of a lattice tower (28), which can be coupled on to it and which has at least one main jib, and means being provided to generate the rotary movement of the ring lift crane, and the chassis (3) being connected to various sections of the ring (2) by means of reinforcing struts,
    characterised in that
    on at least one lattice tower component there is a lateral bracing element (26, 26') which extends at least over half the length of the relevant lattice tower component.
  2. Ring lift crane as in Claim 1,
    characterised in that
    the main jib (17) has a lateral bracing element, the foot end (31, 31') of which is connected in an articulated manner to the front adapter, as is the foot end of the main jib (17), and the top end (30, 30') of which is connected in a fixed manner to an element of the main jib (17).
  3. Ring lift crane as in Claim 2,
    characterised in that
    the lateral bracing extends over the entire length of the main jib (17), and the top end (30, 30') of the bracing is connected in a fixed manner to the head piece (24) of the main jib (17).
  4. Ring lift crane as in one of Claims 1 - 3,
    characterised in that
    the lateral bracing consists of at least one stay element (26, 26') positioned at the right-hand and left-hand sides of, and at a distance from and parallel to, the lattice elements (28) of the relevant lattice tower components, said stay element being connected at specific intervals to the relevant lattice tower element (28) by means of connecting elements (27, 27').
  5. Ring lift crane as in one of Claims 1 - 4,
    characterised in that
    there is, in a cross-sectional plane to the right and the left of the lattice tower component in each case, at least one connecting element (27, 27').
  6. Ring lift crane as in Claim 5,
    characterised in that
    there are two connecting elements (27, 27') on one side, and the relevant lattice element (28) has a cross strut (29) in this plane.
  7. Ring lift crane as in Claim 6,
    characterised in that
    the cross strut (29) and the two connecting elements (27, 27') form a triangle.
  8. Ring lift crane as in Claim 7,
    characterised in that
    the triangle is an isosceles triangle.
  9. Ring lift crane as in one of Claims 5 - 8,
    characterised in that
    the distance between adjacent cross-sectional planes is at most the same as, or smaller than, the length of the relevant lattice tower element (28).
  10. Ring lift crane as in Claim 9,
    characterised in that
    the distance is half the length of the lattice tower element (28).
  11. Ring lift crane as in one of Claims 1 - 10,
    characterised in that
    the staying means (26, 26') consists of rods or tubes connected with one another, the lengths of which equal the length of one lattice tower element (28).
  12. Ring lift crane as in one of Claims 1 - 10,
    characterised in that
    the staying means is a cable.
  13. Ring lift crane as in one of Claims 1 - 12,
    characterised in that
    within each cross-sectional plane, the distance between the lattice tower element (28) and the staying means (26,26') is at least half the width of the lattice tower element (28).
  14. Ring lift crane as in Claim 13,
    characterised in that
    the distance is equal to 2 - 4 times the width of the lattice tower element (28).
  15. Ring lift crane as in one of Claims 1 - 14,
    characterised in that
    the jib has a main jib (17) with lateral bracing and a double mast (18, 18') without lateral bracing, the feet of which mast can be coupled to the front adapter (13), and the head pieces of which mast are connected to the head piece (24) of the main jib (17) by a stay whose length is adjustable, and to the counterweight (22) by means of a rigid bracing element (25, 25').
  16. Ring lift crane as in one of Claims 1 - 4,
    characterised in that
    the jib has a double main jib with no lateral bracing, and that an auxiliary jib with lateral bracing is positioned on to it.
EP01913527A 2000-01-19 2001-01-18 Ring lift crane Expired - Lifetime EP1263670B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10002917 2000-01-19
DE10002917A DE10002917A1 (en) 2000-01-19 2000-01-19 Ring lift crane
PCT/DE2001/000253 WO2001053189A2 (en) 2000-01-19 2001-01-18 Ring lift crane

Publications (2)

Publication Number Publication Date
EP1263670A2 EP1263670A2 (en) 2002-12-11
EP1263670B1 true EP1263670B1 (en) 2003-11-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01913527A Expired - Lifetime EP1263670B1 (en) 2000-01-19 2001-01-18 Ring lift crane

Country Status (5)

Country Link
US (1) US6679394B2 (en)
EP (1) EP1263670B1 (en)
JP (1) JP2004502615A (en)
DE (2) DE10002917A1 (en)
WO (1) WO2001053189A2 (en)

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Publication number Priority date Publication date Assignee Title
EP2067737A1 (en) 2007-12-05 2009-06-10 Liebherr-Werk Ehingen GmbH Side bracing for a grid extension of a crane

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10258179A1 (en) * 2002-12-12 2004-06-24 Liebherr-Werk Nenzing Ges.M.B.H., Nenzing Lattice frame for crane outrigger has longitudinal corner beams formed from steel tubes with fibre reinforced plastic inner reinforcement
DE102006015307A1 (en) 2005-11-17 2007-05-24 Terex-Demag Gmbh & Co. Kg Mobile large crane
DE102006060347B4 (en) 2006-12-20 2008-09-25 Liebherr-Werk Ehingen Gmbh Lattice piece for a mobile large crane and method for its erection
DE202008009281U1 (en) * 2008-07-10 2009-11-12 Liebherr-Werk Ehingen Gmbh crane
WO2010121134A1 (en) * 2009-04-17 2010-10-21 Bigge Crane & Rigging Co. Ring derrick with stationary counterweight
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DE102007058553A1 (en) 2007-12-05 2009-06-25 Liebherr-Werk Ehingen Gmbh Lateral bracing for a lattice boom of a crane

Also Published As

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WO2001053189A2 (en) 2001-07-26
WO2001053189A3 (en) 2002-03-07
DE50100910D1 (en) 2003-12-11
EP1263670A2 (en) 2002-12-11
DE10002917A1 (en) 2001-08-02
US20030029826A1 (en) 2003-02-13
JP2004502615A (en) 2004-01-29
US6679394B2 (en) 2004-01-20

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