EP1657210B1 - Grue, avec cable en fibres - Google Patents

Grue, avec cable en fibres Download PDF

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Publication number
EP1657210B1
EP1657210B1 EP05021048A EP05021048A EP1657210B1 EP 1657210 B1 EP1657210 B1 EP 1657210B1 EP 05021048 A EP05021048 A EP 05021048A EP 05021048 A EP05021048 A EP 05021048A EP 1657210 B1 EP1657210 B1 EP 1657210B1
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EP
European Patent Office
Prior art keywords
crane
rope
accordance
drive
ropes
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.)
Active
Application number
EP05021048A
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German (de)
English (en)
Other versions
EP1657210B2 (fr
EP1657210A1 (fr
Inventor
Horst Zerza
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 Biberach GmbH
Original Assignee
Liebherr Werk Biberach GmbH
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Application filed by Liebherr Werk Biberach GmbH filed Critical Liebherr Werk Biberach GmbH
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Publication of EP1657210B1 publication Critical patent/EP1657210B1/fr
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
    • 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

Definitions

  • the invention relates to a crane, with one or more cables, for example for lifting loads or for adjusting or unclamping a boom according to the preamble of claim 1.
  • Hoists are known in numerous different embodiments. Especially in the field of cranes there is a variety of design variants that have to meet a wide variety of requirements.
  • the ropes used in known hoists consist of a variety of steel wires, which are processed into strands.
  • the ropes consist of a rope core, which consists of strands stranded together.
  • the outer strands are beaten around the rope core.
  • the steel cables used today are known in various designs. They are usually wound on cable drums, whereby due to the ability of steel cables to absorb shear forces, a multi-layer winding is possible and common.
  • a significant disadvantage of steel cables used today is their weight, which, depending on the cable design with a rope diameter of 22 mm, for example, approx. 2.1 kg / m and at a rope diameter of 30 mm, for example, about 4.5 kg / m.
  • the relatively high rope weight naturally reduces the payload of the hoist or increases the total weight of the hoist or the transport weight of mobile hoists, such as mobile cranes.
  • the present invention is therefore the object of developing a hoist of the type mentioned in such a way that its weight is reduced or that its payload is increased compared to conventional type hoists.
  • the ropes are at least partially fiber ropes.
  • the invention is thus based on the fact that the hoist has at least in part or in sections high-strength fiber ropes. This can apply to any existing in the hoist ropes, such as hoisting ropes for lifting the load, cables for adjusting a boom, ropes of guy bracing and the like.
  • the rope weight plays an essential role in the hoists. It leads to an increase in the payload or to a reduction in the total weight or transport weight of mobile cranes.
  • the fiber rope is preferably an aramid rope, ie a rope which has aramid fibers or is composed of these.
  • the material aramid is aromatic polyamide with high strength and low weight.
  • the weight of an aramid rope at comparable breaking force is only about 45% of the weight of a Stahiseiles.
  • Further advantages are a small D / d ratio, ie it is possible to realize small pulley diameters and thus smaller drives, as well as the long service life with respect to the flexural strength, which is 60 times higher than that of steel cables.
  • Another advantage is the high coefficient of friction of 0.3 to 0.6, which makes the ropes particularly suitable for a traction sheave drive. Furthermore, the low noise of the ropes can be mentioned.
  • the hoist in which the invention is used is essentially arbitrary. It may be in the hoist, for example. to trade a crane.
  • Examples of cranes in which the invention can be used are tower cranes, mobile cranes, luffing jib cranes, harbor cranes, mobile harbor cranes or container cranes.
  • the invention can also be used with other crane types.
  • a cable drive and a storage drum for winding the rope is provided.
  • the required cable traction is applied by the cable drive.
  • the cable drive may e.g. be designed as a capstan drive or as a traction sheave drive.
  • the e.g. Traction force required to lift the load or to move a boom is applied through the traction sheave or through the spill head.
  • the storage drum serves to accommodate the unused cable length, in which case a multi-layer winding is conceivable if the tensile force for winding the cable onto the storage drum is chosen to be correspondingly low.
  • the cable drive may be e.g. to act a lifting drive or even a boom adjustment. Other applications are possible.
  • the arrangement of the storage drum is essentially arbitrary. It can be chosen freely, for example, in tower cranes and mobile cranes, since the cable feed can be fed by deflections the respective traction sheaves or the spill head. If the lifting device is a tower crane, can be provided that the storage drum is arranged on the counter-jib. The storage drum can be placed at a large distance to the pivot point of the counter-jib.
  • the cable drive, ie preferably the spill drive or the traction sheave drive can be arranged for example on the spire. Thus, a sufficient distance between the two positions drive and drum would be available to run a drum with the necessary storage option.
  • the storage drum is connected so that it always exerts a tensile force and thus the rope already with bias on the respective drive unit (for example traction sheave drive, spill drive) enters.
  • the bias or the cable tensile force can be adjusted so that the storage drum can be wound in multiple layers. It is conceivable, e.g. a cable traction of a few hundred kilograms.
  • the winding of the storage drum is preferably carried out by means of a winding device.
  • the cable guide is such that the rope has a 2-fold, 4-fold or more than 4-fold reeving (x-fold reeving). Especially with mobile cranes are 6-, 8-, 10-fold, etc. Shearing is not a special feature.
  • the cable guide has a significant influence on the necessary hook weight and on the payload, as will be explained in more detail below.
  • a swirl compensator can be provided in a further embodiment of the invention, which opposes the rotation angle behavior of the rope counter rotation.
  • the swirl compensator can be electrically operated and used manually or automatically. It serves to counteract the rotation angle behavior of the rope. If there are means for torque detection, could over This swirl compensator will automatically be counter-rotated.
  • the swirl compensator is provided in the region of the rope endpoint.
  • FIG. 1 shows in a schematic representation of the upper portion of a tower crane with main boom 10 and counter-jib 20.
  • the reference character g denotes the rope weight per meter of rope length (kg / m), f the rope sag, I the main boom length and the reference H the cable traction.
  • the rope weight g and the boom length I are given.
  • the maximum rope sag f is fixed, which is 5 to 6 m in the illustrated embodiment.
  • the cable pull force and thus the hook weight can be determined. Since the cable traction and thus the hook weight is directly proportional to the rope weight, can be a significant influence on the load hook weight and thus exert on the available payload by changing the rope weight, as exemplified in the Figures 2 and 3 evident.
  • FIG. 1 further shows the storage drum 30, which is arranged in the spaced from the articulation point of the counter-jib 20 region of the counter jib 20, and by the reference numeral 40, the cable drive, which can be configured for example as a capstan drive or as a traction sheave drive.
  • FIG. 2 shows the load curves for a tower crane when using a steel rope (St) and when using an aramid rope (F) as a hoist rope.
  • the values given are for a 2-strand reeving with a maximum load of 12 t (steel rope).
  • the comparison involved the use of a steel cable weighing 2.1 kg / m and an aramid rope weighing 0.945 kg / m.
  • FIG. 3 the values for a hook height of 200 m and 4-strand design for a steel cable with a cable weight of 4.52 kg / m and for an aramid rope with a cable weight of 2.03 kg / m. How out FIG. 3 As can be seen, the maximum load is increased by approximately 8% and the peak load torque by approximately 290%.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Jib Cranes (AREA)
  • Control And Safety Of Cranes (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Ropes Or Cables (AREA)

Claims (12)

  1. Grue, comportant un ou plusieurs câbles, par exemple pour le levage de charges ou pour le déplacement ou le haubanage d'une flèche, les câbles étant au moins en partie des câbles à fibres, caractérisée en ce que ladite grue comporte une commande à câble et un tambour pour l'enroulement du câble à fibres, le tambour d'enroulement étant configuré de telle sorte qu'une force de traction est exercée en permanence sur le câble à fibres, de telle sorte que le câble à fibres s'engage avec une précontrainte dans la commande à câble.
  2. Grue selon la revendication 1, caractérisée en ce que les câbles à fibres sont des câbles en aramide.
  3. Grue selon la revendication 1 ou 2, caractérisée en ce que ladite grue est une grue à tour, une grue mobile, une grue à flèche pivotante, une grue portuaire, une grue portuaire mobile ou une grue de manutention de conteneurs.
  4. Grue selon l'une quelconque des revendications précédentes, caractérisée en ce que la commande à câble est réalisée sous la forme d'une commande à cabestan ou d'une commande à poulie motrice.
  5. Grue selon l'une quelconque des revendications précédentes, caractérisée en ce que la commande à câble est une commande de levage ou une commande de déplacement de la flèche.
  6. câble à fibres, selon l'une quelconque des revendications précédentes, caractérisée en ce que la grue est une grue à tour et en ce que le tambour d'enroulement est monté sur la contre-flèche.
  7. Grue selon l'une quelconque des revendications précédentes, caractérisée en ce que la grue est une grue à tour et en ce que la commande à câble est disposée dans la zone de la tête du mât.
  8. Grue selon l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu un dispositif d'enroulement, au moyen duquel le câble peut être enroulé en plusieurs couches sur le tambour d'enroulement.
  9. Grue selon l'une quelconque des revendications précédentes, caractérisée en ce que le câble comporte un mouflage double, quadruple ou supérieur à un quadruple mouflage.
  10. Grue selon l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu un compensateur de torsion, qui oppose une rotation antagoniste au comportement de rotation du câble.
  11. Grue selon la revendication 10, caractérisée en ce que le compensateur de torsion est actionné électriquement.
  12. Grue selon la revendication 10 ou 11, caractérisée en ce qu'il est prévu des moyens de détection du couple de rotation dans le câble.
EP05021048.3A 2004-11-15 2005-09-27 Grue, avec cable en fibres Active EP1657210B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004055016 2004-11-15
DE102005008087.1A DE102005008087B4 (de) 2004-11-15 2005-02-22 Kran

Publications (3)

Publication Number Publication Date
EP1657210A1 EP1657210A1 (fr) 2006-05-17
EP1657210B1 true EP1657210B1 (fr) 2010-01-27
EP1657210B2 EP1657210B2 (fr) 2018-01-17

Family

ID=35696006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05021048.3A Active EP1657210B2 (fr) 2004-11-15 2005-09-27 Grue, avec cable en fibres

Country Status (4)

Country Link
EP (1) EP1657210B2 (fr)
AT (1) ATE456538T1 (fr)
DE (2) DE102005008087B4 (fr)
ES (1) ES2339459T5 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009014031U1 (de) * 2009-10-16 2009-12-24 Manitowoc Crane Group France Sas Synthetikseil als Tragemittel für Krane und andere Hebezeuge
DE202011001846U1 (de) * 2011-01-24 2012-04-30 Liebherr-Components Biberach Gmbh Vorrichtung zur Erkennung der Ablegereife eines hochfesten Faserseils beim Einsatz an Hebezeugen
AT516444B1 (de) 2014-11-05 2016-09-15 Teufelberger Fiber Rope Gmbh Seil aus textilem Fasermaterial
DE102015003981A1 (de) * 2015-03-26 2016-09-29 Liebherr-Werk Biberach Gmbh Kranauslegervorrichtung
DE102015003982A1 (de) 2015-03-26 2016-09-29 Liebherr-Werk Biberach Gmbh Kranturm
DE102020108990A1 (de) * 2020-04-01 2021-10-07 Liebherr-Werk Biberach Gmbh Hebezeug wie Kran

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2455273C3 (de) * 1974-11-22 1978-01-19 Feiten & Guilleaume Carlswerk AG, 5000 Köln Kranseil aus Kunststoff
GB2009077A (en) 1977-12-05 1979-06-13 Pyramid Mfg Co Winch Mechanism for Crane
DE2853661C2 (de) 1978-12-13 1983-12-01 Drahtseilwerk Saar GmbH, 6654 Kirkel Kunstfaserseil
DE3510116A1 (de) * 1984-04-25 1985-10-31 Liebherr-Werk Biberach Gmbh, 7950 Biberach Oben drehender turmkran
DE3937631A1 (de) 1989-11-11 1991-05-16 Saar Gmbh Drahtseilwerk Wirbel zur befestigung des festen endes eines ueber mindestens eine, die lastaufnahmevorrichtung haltende, lose rolle gefuehrten kranseiles
IL132299A (en) * 1998-10-23 2003-10-31 Inventio Ag Stranded synthetic fiber rope
SG76633A1 (en) * 1998-10-23 2000-11-21 Inventio Ag Synthetic fiber rope
EP1004700B1 (fr) * 1998-11-25 2011-02-16 Inventio AG Câble en fibres synthétiques sans gaine extérieure et procédé de fabrication correspondant
EP1331191A1 (fr) * 2002-01-25 2003-07-30 IHC Gusto Engineering B.V. Engin de levage flottant
DE20202989U1 (de) * 2002-02-25 2002-06-13 Müller, Wolfgang T., 78315 Radolfzell Hybridseil für Hub- und Transporteinrichtungen insbesondere für Aufzüge

Also Published As

Publication number Publication date
DE102005008087B4 (de) 2023-10-05
EP1657210B2 (fr) 2018-01-17
ES2339459T5 (es) 2018-04-30
ES2339459T3 (es) 2010-05-20
EP1657210A1 (fr) 2006-05-17
DE502005008939D1 (de) 2010-03-18
ATE456538T1 (de) 2010-02-15
DE102005008087A1 (de) 2006-05-24

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