EP0152562A2 - Grue à tour télescopique - Google Patents

Grue à tour télescopique Download PDF

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Publication number
EP0152562A2
EP0152562A2 EP84114596A EP84114596A EP0152562A2 EP 0152562 A2 EP0152562 A2 EP 0152562A2 EP 84114596 A EP84114596 A EP 84114596A EP 84114596 A EP84114596 A EP 84114596A EP 0152562 A2 EP0152562 A2 EP 0152562A2
Authority
EP
European Patent Office
Prior art keywords
rope
tower
area
trolley
pulley
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.)
Withdrawn
Application number
EP84114596A
Other languages
German (de)
English (en)
Other versions
EP0152562A3 (fr
Inventor
Horst Zerza
Johann Woisetschläger
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
Publication of EP0152562A2 publication Critical patent/EP0152562A2/fr
Publication of EP0152562A3 publication Critical patent/EP0152562A3/fr
Withdrawn legal-status Critical Current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

Definitions

  • the trolley rope runs over at least one rope pulley fastened in the area of the lower end of the outer tower piece, one rope pulley attached in the area of the upper end of the outer tower piece, one in the lower area of the Inner pulley attached rope pulley, in the area of the tower top, the outer end of the outer support part of the boom and in the area of the articulated connection of the support parts mounted pulleys to a fixed point on the trolley.
  • the known crane can only be erected via the trolley winch, it being necessary first of all for the trolley to be fixed to the folded-down support parts of the jib, so that the end of the trolley travel cable is fixed.
  • the trolley travel and lifting winches serve to lift the crane hook and to move the cat.
  • the trolley winch it is necessary to use the trolley winch to cover the entire trolley rope, including the trolley Area of the pulleys, which are arranged on the outer gymnastics piece and at the lower end of the inner tower piece held in this.
  • the object of the invention is therefore to provide a crane with a telescopic tower of the type mentioned, which can be erected and assembled in a simple manner without additional hydraulic presses, assembly hoists or assembly winches only with the already existing hoisting and trolley winches and with which in the assembled Condition that the trolley rope running in the area of the outer and inner tower sections does not have to be moved during trolley travel.
  • this object is achieved in that the trolley rope runs over a cable pulley arranged in the region of the tower top, then over cable pulleys in the region of the outer end of the guy support articulated in the region of the articulated connection of the carrier parts and in the region of the outer end of the outer carrier part a reversing rope pulley is guided on the trolley and from this via parallel to the two rope pulleys of the outer support part and the guy support rope pulleys back to a rope pulley mounted on the inner end region of the inner support part or at the top of the tower that the rope deflected around this runs between the bottom block and the top block of a block and tackle and anchored at a fixed point of one of the bottles, that the top block is attached to the end of a rope, which is anchored to the lower end of the inner tower and is guided by a lateral pulley at the upper end of the outer tower, and that the bottom is attached to the end of a rope which is anchored to the superstructure or the rotating platform and
  • the crane according to the invention can only be erected using the trolley winch. For this it is necessary to attach the trolley to the to fix the folded parts of the boom so that the end of the trolley rope is fixed. Furthermore, before the outer tower piece folded onto the revolving platform is erected, the inner tower piece retracted into it is blocked in it.
  • the outer tower piece is pivotally mounted in a carrier piece of the rotating platform at such a distance above the deflection roller mounted laterally at the lower end of the outer tower piece for the rope piece carrying the bottom block, which generates an erecting torque around the articulated bolt bearing the outer tower piece by actuating the trolley winch. Due to the pulley-like reeving of the trolley rope between the top and the bottom block, the rope forces can be considerably reduced both for erecting the outer tower section and for subsequently telescoping the inner tower section.
  • the outer tower section As soon as the outer tower section has been raised into its vertical position by the trolley winch via the pulley, it is firmly bolted to the rotating platform by at least one further bolt connection. Then the interlocking of the inner tower section with the outer tower section is released so that the inner tower section can be extended from the outer tower section by actuating the trolley winch again. In the extended position, the inner tower piece is then locked to the outer tower piece by bolt connections or the like.
  • the outer support part is lowered with the trolley. At the same time, the inner support part is lifted with the hoist.
  • the trolley can be moved towards the outer end of the jib via the trolley winch, so that only devices have to be provided to move the trolley in the opposite direction towards the tower can.
  • This device can consist in that the trolley is connected to the top of the tower via a rope which forms a loop in the area of the tower, in which a weight is suspended. The weight causes the trolley to always act in the direction of the tower, so that it is moved from the trolley winch towards the tower by appropriately lowering the trolley cable.
  • the same effect can also be achieved if the boom in the assembled position is pivoted upwards beyond the horizontal, ie forms an acute angle with the horizontal.
  • the rope guide according to the invention is particularly expedient in the case of a closed construction of the outer and inner tower pieces, because the pulley which erects the outer gymnastics piece and then telescopes the inner tower piece is on the outside and the course of the rope can be observed.
  • the hoist rope can be reeved in a block and tackle fashion via pulleys mounted on the rear guy rope and on the rotating platform. This configuration makes it possible to tension the rear guy rope over the hoist winch and thereby open and swing out the support parts of the boom. After swinging the boom into the assembled position, the guy rope is tightly connected to the turntable, so that the pulley is relieved or can be dispensed with entirely. Since the boom can be opened and pivoted independently of the extension of the inner tower section, the boom can also be raised when the inner tower section is retracted into the outer tower section or in all intermediate positions.
  • the weight hanging in the rope loop can also be blocked in predetermined positions instead of the trolley.
  • the cable pulley can be detached from the rotating platform in a further embodiment of the invention and can be provided as a bottom block with a crane hook for ballasting the crane.
  • the outer tower section can be rocked over the trolley winch and for ballasting, the lower block provided with a crane hook can be raised and lowered over the lifting winch.
  • the telescopic crane shown schematically in FIGS. 1 and 2 has a flat portal 1 with support feet, around the vertical axis 2 of which the rotating platform 3 provided with a conventional rotary drive is rotatably mounted.
  • Lateral stands 4 are fastened on the revolving stage, in which the outer tower piece 6 is pivotably mounted about the hinge pin 5. In the erected vertical position of the outer tower section 6, this is connected to the stands 4 or the rotating platform 3 by at least one further bolt connection, not shown.
  • the trolley winch 7 and the hoist winch 8 are arranged on the rotating platform 3.
  • the trolley rope 9 runs from the trolley winch 7 over the cable pulley 10 mounted at the upper end of the inner tower piece 21, the cable pulley 11 mounted at the upper end of the support 22, the cable pulley 12 mounted at the outer end of the outer support part 24 of the boom, which is in the region of the lower one End of the support 22 mounted cable pulley 13 to the cable pulley 14 mounted on the trolley 20, deflecting the trolley traveling cable by approximately 180 ° and from there via the cable pulleys 13 ', 12', 11 'mounted parallel and coaxially with the cable pulleys 13, 12, 11 to the rope pulley 15 mounted on the inner end region of the inner support part 23 of the boom.
  • the trolley rope 9 is deflected to the pulley 18 via the rope pulley 15 and is reeved between its upper and lower bottle 16, 17 and with its end in the schematically indicated manner the upper bottle 17 anchored.
  • the upper bottle 17 is fastened to the lower end of a rope 26 which extends laterally at the upper end of the outer tower piece 6 mounted pulley 27 runs and is anchored to the lower end of the inner tower piece 21.
  • the bottom block 16 of the block and tackle 18 is fastened to the upper end of the cable 28, which is guided via the cable pulley 30 mounted laterally at the lower end of the outer tower piece 6 to the inwardly offset fixed point 29 on the rotating platform 3.
  • the inner support part 23 of the boom is articulated in the joint 31.
  • the guy supports 33, 34 are pivotally mounted about the axis 32.
  • the rear guy cable 36 is attached at point 35.
  • the outer ends of the guy supports 33, 34 are connected to each other by the guy rope 37.
  • a guy rope 37 runs from the outer end of the guy support 34 to the fixed point in the area of the articulated connection 25 between the support parts 23, 24 of the boom.
  • Another guy rope 38 runs from the fixed point at the end of the support 34 via a fixed point at the outer end of the guy support 22, which is pivotally mounted in the area of the articulated connection 25 of the two support parts 23, 24, to a fixed point 39 in the area of the outer end of the outer support part 24.
  • the lifting cable 41 runs over the cable pulley 42 of an upper block of a block and tackle, which is connected in the manner shown to the guy cable 36, to the cable pulley 43 of the lower block, which is connected to the rotating platform 3, and from there via the cable pulley 44 in the upper region of the inner tower piece 21 via the rollers of the trolley 20, the roller of the crane hook 45 to the fixed point 46 below the end of the outer support part 24.
  • the retraction rope 48 is fastened, which runs over the rope pulley 49, which is supported on the axis 32, into the inner tower piece 21 and hangs in the loop between the rope pulley 49 and the fixed point 52, in the The weight 51 connected to the rope pulley 50 is suspended.
  • the lock (not shown) between the inner tower section 21 and the outer tower section 6 is released.
  • the inner tower piece 21 is now telescoped via the pulley 18 and the cables 26, 28 and locked in the extended position with the outer tower piece 6 by locking devices, not shown.
  • the rear guy rope 36 is tensioned by retracting the lifting rope 41 while the crane hook 45 is moving in the trolley 20 and thereby the boom is opened and swung out.
  • the front carrier part 24 is also stretched over the hoist winch 8, with a corresponding length of the trolley rope being reduced.
  • the trolley and hoist winches 7, 8 serve in the manner shown in FIG. 2 for lifting the crane hook 45 and the method of the trolley 20, only the trolley rope piece 9 to the trolley having to be moved for trolley travel from the trolley winch.
  • the lower block 43 detached from the platform 3, which can be provided with a crane hook, can be used for ballasting the crane.
  • the upper bottle 42 is located in the upper region of the lower tower section 6.
  • the boom can also be swung out when the inner tower section 21 is retracted or in intermediate positions of the inner tower section. In the intermediate positions, the guy rope 36 is bolted to the turntable 3 with a correspondingly shortened length.
  • the outer support part 24 of the boom can be swung up.
  • the inner support part 23 can be swiveled up by actuating the lifting winch 8 when the crane hook 45 is moved on a block. By actuating both winches, the pivoting movements of the inner and outer carrier parts can be superimposed on one another.
EP84114596A 1984-02-21 1984-11-30 Grue à tour télescopique Withdrawn EP0152562A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3406243 1984-02-21
DE3406243 1984-02-21
DE19843422146 DE3422146A1 (de) 1984-02-21 1984-06-14 Kran mit teleskopierbarem turm
DE3422146 1984-06-14

Publications (2)

Publication Number Publication Date
EP0152562A2 true EP0152562A2 (fr) 1985-08-28
EP0152562A3 EP0152562A3 (fr) 1987-09-09

Family

ID=25818681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114596A Withdrawn EP0152562A3 (fr) 1984-02-21 1984-11-30 Grue à tour télescopique

Country Status (2)

Country Link
EP (1) EP0152562A3 (fr)
DE (1) DE3422146A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3719986A1 (de) * 1987-06-15 1988-12-29 Liebherr Werk Biberach Gmbh Turmdrehkran
FR2636616A1 (fr) * 1988-09-20 1990-03-23 Potain Sa Grue repliable a fleche en deux ou trois elements articules les uns aux autres
EP0360702A1 (fr) * 1988-09-20 1990-03-28 Potain Grue repliable à flèche en deux ou trois éléments articulés les uns aux autres
CN107761572A (zh) * 2017-11-24 2018-03-06 中交路桥华南工程有限公司 斜拉索挂索系统及其系统的安装方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110092309A (zh) * 2019-05-27 2019-08-06 南通润邦重机有限公司 一种伸缩式桁架吊臂

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1807676A1 (de) * 1968-11-08 1970-06-04 Wetzel Kg Turmdrehkran
FR2155849A1 (fr) * 1971-10-11 1973-05-25 Ts Konstruktors
DE3005984A1 (de) * 1980-02-18 1981-09-03 Pekazett Baumaschinen GmbH, 6660 Zweibrücken Turmdrehkran

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976018C (de) * 1953-05-21 1963-01-17 Hans Tax Turmdrehkran mit einem um eine waagerechte Achse des Kranwagens aufrichtbaren Turm
AT294370B (de) * 1969-10-22 1971-11-25 Wetzel Kg Turmdrehkran
DE2944473A1 (de) * 1979-11-03 1981-05-14 Cadillon S.A., Charolles Kran sowie verfahren zu seiner bedienung
DE8009033U1 (de) * 1980-04-01 1980-09-04 Liebherr-Werk Bischofshofen Gmbh, Bischofshofen (Oesterreich) Kran mit teleskopturm
DE3229949C1 (de) * 1982-08-12 1983-11-17 Peiner Hebe- Und Transportsysteme Gmbh, 5500 Trier Turmkran
DE3401094C2 (de) * 1984-01-13 1986-12-18 Liebherr-Werk Bischofshofen GmbH, Bischofshofen Kran mit teleskopierbarem Turm

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1807676A1 (de) * 1968-11-08 1970-06-04 Wetzel Kg Turmdrehkran
FR2155849A1 (fr) * 1971-10-11 1973-05-25 Ts Konstruktors
DE3005984A1 (de) * 1980-02-18 1981-09-03 Pekazett Baumaschinen GmbH, 6660 Zweibrücken Turmdrehkran

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3719986A1 (de) * 1987-06-15 1988-12-29 Liebherr Werk Biberach Gmbh Turmdrehkran
FR2636616A1 (fr) * 1988-09-20 1990-03-23 Potain Sa Grue repliable a fleche en deux ou trois elements articules les uns aux autres
EP0360702A1 (fr) * 1988-09-20 1990-03-28 Potain Grue repliable à flèche en deux ou trois éléments articulés les uns aux autres
FR2643625A2 (fr) * 1988-09-20 1990-08-31 Potain Sa Grue repliable a fleche en trois elements articules les uns aux autres
CN107761572A (zh) * 2017-11-24 2018-03-06 中交路桥华南工程有限公司 斜拉索挂索系统及其系统的安装方法
CN107761572B (zh) * 2017-11-24 2024-02-23 中交路桥华南工程有限公司 斜拉索挂索系统及其系统的安装方法

Also Published As

Publication number Publication date
DE3422146A1 (de) 1985-08-22
EP0152562A3 (fr) 1987-09-09

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Inventor name: WOISETSCHLAEGER, JOHANN

Inventor name: ZERZA, HORST