EP0132572B1 - Grue à tour télescopique - Google Patents

Grue à tour télescopique Download PDF

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Publication number
EP0132572B1
EP0132572B1 EP84106894A EP84106894A EP0132572B1 EP 0132572 B1 EP0132572 B1 EP 0132572B1 EP 84106894 A EP84106894 A EP 84106894A EP 84106894 A EP84106894 A EP 84106894A EP 0132572 B1 EP0132572 B1 EP 0132572B1
Authority
EP
European Patent Office
Prior art keywords
secured
rope
girder section
jib
around
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
Application number
EP84106894A
Other languages
German (de)
English (en)
Other versions
EP0132572A1 (fr
Inventor
Horst Zerza
Heinz Rieder
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 Bischofshofen GmbH
Original Assignee
Liebherr Werk Bischofshofen GmbH
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 Liebherr Werk Bischofshofen GmbH filed Critical Liebherr Werk Bischofshofen GmbH
Priority to AT84106894T priority Critical patent/ATE25230T1/de
Publication of EP0132572A1 publication Critical patent/EP0132572A1/fr
Application granted granted Critical
Publication of EP0132572B1 publication Critical patent/EP0132572B1/fr
Expired 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
    • B66C23/26—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
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B66C23/342—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes with telescopic elements
    • 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

Definitions

  • the invention relates to a crane with a telescopic tower attached to an uppercarriage or the rotating platform of a portal, the extendable part of which is articulated at its upper end to the inner support part of the jib, at the outer end of which the outer support part of the ejector is articulated, with an on Head end of the extendable part fastened counter jib, which carries a rope pulley at its free end, over which a rear guy rope runs from its attachment to the uppercarriage or on the rotating platform to a fixed point at the outer end of a boom support pivotally mounted at the head end of the extendable part, with two others Guy ropes attached to the anchor point of the ejector support, of which the other end of the first guy rope is attached to the outer area of the inner support member and the other end of the second guy rope is attached to the end of a central support, to which a third guy rope is attached, the other end of which is in the outer area of the outer Sluggish part of the boom is fastened, and
  • the counter-jib is pivoted counterclockwise around its articulated connection with the head piece, whereby the jib support is also pivoted counterclockwise, so that it tightens the inner support part via the tightening first guy rope pivoted from its position parallel to the tower and the outer support part articulated to the inner support part, which is held in a horizontal position by the cable, maintains its horizontal position when pivoted.
  • a mounting rope is attached with its ends to the outer support part and the lower tower part and via deflection rollers at the upper end of the lower tower part, at the lower and upper ends of the extendable part, guided on the inner support part and at the upper end of the intermediate support, so that the inner and outer support parts are opened and closed in the manner of an accordion simultaneously with the extension and retraction of the extendable part.
  • the outer support part which is formed by a central support part, is attached to the still an end-side support part is articulated, can be lowered relative to the inner support part parallel to the tower into a horizontal position by the mounting thread, so that the inner and outer support parts can be pivotally bolted to one another in the region of their lower straps. If the extendable part of the telescopic tower is now extended, the inner support part is pivoted counterclockwise into its horizontal position by tightening the corresponding guy ropes.
  • the outer support member articulated in the inner support member can be pivoted relative to the inner support member regardless of its pivoting movement. This makes it possible to avoid obstacles when erecting or pivoting.
  • the outer boom section can also be pulled up during operation to drive over obstacles.
  • the outer support part can also be pulled up in order to reach a wind-free position when there are obstacles when it is out of operation.
  • ballasting devices are lowered in the vertical position.
  • Such a luffing crane enables the ballast to be picked up and set down without pivoting, so that ballasting is simplified.
  • all of the ballasting devices described above have the disadvantage that they make the basic device more expensive due to the required additional devices.
  • the object of the invention is therefore to design the known crane of the type specified at the outset in such a way that it can ballast itself without complex additional devices.
  • this object is achieved in that the rope is guided over two deflecting rollers mounted coaxially at the rear end region of the counter jib rigidly connected to the extendable part and between them over the roller of a bottom block, which carries a ballast hook and can be moved to a stop, and in that the swivel mounted tower is equipped with a rocker drive.
  • the assembly winch and the associated rope are assigned a second function as ballasting device.
  • the end of the rope is anchored to the tower or a support part of the boom, so that the ballasting hook can be brought over the ballast to be picked up by rocking the not yet telescoped tower.
  • the bottom block can be raised and lowered and the ballast can be picked up by actuating the assembly winch.
  • the ballast By rocking and swiveling the tower, the ballast can be brought into its correct position on the rotating platform and set down.
  • the crane shown in Fig. 1 consists of a portal 1, which is connected to the rotating platform 2 via a conventional rotary connection.
  • the rotating stage 2 is provided with two mutually parallel, each arranged in a triangular shape and projecting at its front end of beams 3, between which the lower part 4 of the telescopic tower is pivotally mounted in the manner shown. In its vertical position shown, the lower part 4 is locked in a known side.
  • a pulley 5 with a winch 6 is provided for erecting the lower part 4 of the tower.
  • the upper part 7 of the tower can be extended from the lower part 4 via hydraulic devices or a telescopic pulley block.
  • the inner support part 9 of the boom is connected to the upper end of the extendable part 7 in the joint 8.
  • the outer support part 11 is connected to the inner support part 9 by the joint 10 in the region of the lower chords of both support parts.
  • the inner and outer support parts 9, 11 are held in their aligned horizontal position by guy ropes.
  • the rear guy rope 12 runs from its anchor 13 on the rotating platform 2 via the roller 14 to the fixed point 15 at the upper end of the A-shaped boom support 16, which is articulated with the hinge axis 8 at the upper end of the extendable part 7.
  • a first guy cable 17 runs from the fixed point 15 to the fixed point 18 in the region of the outer end of the inner support part 9.
  • a second guy cable 19 runs from the fixed point 15 of the boom support 16 to a fixed point 20 at the upper end of the center support 21, which is about the hinge axis 1 O is articulated between the inner and outer support parts.
  • a third guy rope 22 runs from the fixed point 20 to the fixed point 23 located in the region of the outer end of the outer carrier part 11.
  • the roller 14 is mounted on the rear end of the counter jib 24, which is rigidly connected in the manner shown to the extendable part 7 of the tower.
  • the mounting screw 25 is arranged on a bracket.
  • a cable 26 runs from the assembly winch 25, which is driven by an electric motor, to the deflection pulleys 27, 27 ', which are spaced parallel and coaxially in the front area of the counter-jib 24, and via the cable pulley of the lower block 28, which carries the crane hook 29 for receiving the ballast.
  • the cable 26 runs from the roller 27 'via the deflection rollers 30, 31 on the inner support part to a deflection roller 32 which is mounted at the upper end of the central support.
  • the cable 26 is guided to the roller 33 on the outer support part via the roller 32 and from this back to the fixed point 20 at the outer end of the central support.
  • This reeving of the rope corresponds to that according to FIG. 1B.
  • Other possible reeving of the rope 26 are shown in FIGS. 1A and 1C.
  • ballast weights 35 can then be deposited in the manner shown on the rear end of the rotating platform 2 for ballasting.
  • the front end of the rope of the Möntagewinde is fixed at its fixed point on the outer support part of the boom or the central support and reeved in the manner shown in FIG. 1.
  • the articulated connection 10 is made with the inner support part 9, so that the outer support part 11 in the manner shown in full lines from FIG. 3 in a horizontal position with the parallel to the erected and not yet telescoped tower inner support member 9 is connected.
  • the inner support part 9 is pivoted counterclockwise in the manner shown in dashed lines.
  • the outer support part 11 can be pivoted in the desired manner by corresponding actuation of the mounting screw 25.

Claims (3)

1. Grue comportant une tour (4, 7) téléscopable fixée sur un châssis ou le plateau tournant (2) d'une portique (1), dont la partie mobile (7) est reliée, en son extrémité supérieure, par une articulation avec la partie portante intérieure (9) de la flèche à l'extrémité extérieure de laquelle une partie portante extérieure (11) de la flèche est fixée par une articulation,
comportant une contre-flèche (24) en tête de la partie déployable sur l'extrémité libre de laquelle un câble d'arrêt ( 12) passe de sa fixation ( 13) au châssis ou au plateau tournant à un point fixe (15) de l'extrémité extérieure d'une patte transversale (16) logée de manière pivotante à la tête de la partie déployable, comportant deux autres câbles d'arrêt (17, 19) fixés au point fixe (15) de la patte transversale, l'extrémité du premier câble (17) étant fixée dans la partie extérieure (18) de la partie portante intérieure et l'extrémité du deuxième câble à l'extrémité (20) d'une console médiane (21) à laquelle un troisième câble d'arrêt (22) est fixé dont l'autre extrémité est fixée dans la partie extérieure (23) de la partie portante extérieure de la flèche,
et un câble (26) est fixé à la partie portante extérieure en passant sur une poulie (32) placée à l'extrémité de la console médiane et une poulie de renvoi (31 ) de la partie portante intérieure et d'autres poulies de renvoi (27, 27', 30) jusqu'à un treuil à patins (25) sur lequel la partie portante extérieure peut être pivotée par rapport à la partie portante intérieure de la flèche, caractérisée en ce que le câble (26) est guidé autour de deux poulies de renvoi coaxiales (27,27') qui sont montées de manière rotative sur l'extrémité arrière de la contre-flèche (24) qui est connectée de manière rigide à la partie déployable (7), et le câble (26) étant guidé entre lesdites poulies (27, 27') autour d'une poulie d'un élément (28) qui porte un crochet de ballast et peut être déplacé jusqu'à un arrêt et en ce que la tour (4, 7) pivotante est pourvue d'un entraînement de volée (5, 6).
2. Grue selon la revendication 1, caractérisée en ce que le treuil (25) est disposée dans la zone de l'extrémité supérieure de la partie déployable (7).
3. Grue selon la revendication 1 ou 2, caractérisée en ce que le câble (26) dont l'extrémité est fixée à la partie portante extérieure (11) ou la console médiane (21) est passé plusieurs fois entre les poulies de câble (32, 33) de la partie portante extérieure (11) et la console médiane (21 ).
EP84106894A 1983-06-21 1984-06-15 Grue à tour télescopique Expired EP0132572B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84106894T ATE25230T1 (de) 1983-06-21 1984-06-15 Kran mit teleskopierbarem turm.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3322268A DE3322268A1 (de) 1983-06-21 1983-06-21 Kran mit teleskopierbarem turm
DE3322268 1983-06-21

Publications (2)

Publication Number Publication Date
EP0132572A1 EP0132572A1 (fr) 1985-02-13
EP0132572B1 true EP0132572B1 (fr) 1987-01-28

Family

ID=6201960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84106894A Expired EP0132572B1 (fr) 1983-06-21 1984-06-15 Grue à tour télescopique

Country Status (3)

Country Link
EP (1) EP0132572B1 (fr)
AT (1) ATE25230T1 (fr)
DE (1) DE3322268A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8985353B2 (en) 2006-10-27 2015-03-24 Manitowoc Crane Companies, Llc Mobile lift crane with variable position counterweight
US9278834B2 (en) 2009-08-06 2016-03-08 Manitowoc Crane Group, LLC Lift crane with moveable counterweight

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315960A1 (de) * 1993-05-12 1994-11-17 Liebherr Werk Biberach Gmbh Kran mit teleskopierbarem Turm
FR2761970B1 (fr) * 1997-04-11 1999-05-28 Potain Sa Dispositif de relevage de mat pour grue a tour telescopique
EP0941958A1 (fr) * 1998-03-11 1999-09-15 Gru Dalbe S.r.l. Système pour réduire l'encombremant de la flèche d'une grue repliable
ATE307777T1 (de) * 1999-09-17 2005-11-15 Liebherr Werk Biberach Gmbh Turmdrehkran
DE202004002424U1 (de) * 2004-02-17 2005-07-07 Liebherr-Werk Ehingen Gmbh Derrickkran
US7546928B2 (en) 2006-10-27 2009-06-16 Manitowoc Crane Companies, Inc. Mobile lift crane with variable position counterweight
CN102320526B (zh) * 2011-09-14 2013-02-13 哈尔滨东建机械制造有限公司 一种自装卸可折叠塔式起重机
DE102013006307B4 (de) * 2013-04-12 2016-12-29 Bauer Maschinen Gmbh Baumaschine und verfahren zum betreiben der baumaschine
CN110255402B (zh) 2014-01-27 2022-02-18 马尼托瓦克起重机有限责任公司 带有改进的可动配重的吊升起重机
US10183848B2 (en) 2014-01-27 2019-01-22 Manitowoc Crane Companies, Llc Height adjustment mechanism for an auxiliary member on a crane
CN116969353A (zh) * 2023-09-25 2023-10-31 河南省大方重型机器有限公司 一种高压输电线路绝缘子吊装装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1198029B (de) * 1963-05-22 1965-08-05 Vnii Str I Doroshowo Mash Turmdrehkran
FR1460872A (fr) * 1965-10-21 1966-01-07 Expl Des Etablissements Boilot Nouveau procédé de lestage des grues à montage rapide
DE2101841C3 (de) * 1971-01-15 1973-09-13 Wilhelm Reich Kg, 7900 Ulm Auslegerkran
FR2306158A1 (fr) * 1975-04-03 1976-10-29 Cadillon Roger Perfectionnements aux systemes de repliage des fleches distributrices de grues
FR2306927A1 (fr) * 1975-04-09 1976-11-05 Potain Sa Potence mecanisee pour le levage et le positionnement precis d'un lest sur une grue orientable
FR2398017A1 (fr) * 1977-07-22 1979-02-16 Acme Perfectionnements aux systemes pour le repliage ou le deploiement de la fleche articulee d'une grue a mat telescopique
FR2422581A1 (fr) * 1978-04-10 1979-11-09 Potain Sa Systeme pour le depliage loin du sol de la fleche d'une grue telescopique
FR2464217A1 (fr) * 1979-08-31 1981-03-06 Cadillon Grue transportable a montage rapide et a lestage autonome, et procede d'utilisation
DE8009033U1 (de) * 1980-04-01 1980-09-04 Liebherr-Werk Bischofshofen Gmbh, Bischofshofen (Oesterreich) Kran mit teleskopturm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8985353B2 (en) 2006-10-27 2015-03-24 Manitowoc Crane Companies, Llc Mobile lift crane with variable position counterweight
US9278834B2 (en) 2009-08-06 2016-03-08 Manitowoc Crane Group, LLC Lift crane with moveable counterweight

Also Published As

Publication number Publication date
DE3322268C2 (fr) 1987-02-19
DE3322268A1 (de) 1985-01-17
ATE25230T1 (de) 1987-02-15
EP0132572A1 (fr) 1985-02-13

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