EP2984020A1 - Grue et procédé pour vérifier le câblage d'une telle grue - Google Patents

Grue et procédé pour vérifier le câblage d'une telle grue

Info

Publication number
EP2984020A1
EP2984020A1 EP14712207.1A EP14712207A EP2984020A1 EP 2984020 A1 EP2984020 A1 EP 2984020A1 EP 14712207 A EP14712207 A EP 14712207A EP 2984020 A1 EP2984020 A1 EP 2984020A1
Authority
EP
European Patent Office
Prior art keywords
crane
rope
cable
tensioning device
prüfzugkraft
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.)
Granted
Application number
EP14712207.1A
Other languages
German (de)
English (en)
Other versions
EP2984020B1 (fr
Inventor
Martin Aßfalg
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
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 Biberach GmbH filed Critical Liebherr Werk Biberach GmbH
Publication of EP2984020A1 publication Critical patent/EP2984020A1/fr
Application granted granted Critical
Publication of EP2984020B1 publication Critical patent/EP2984020B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B66C11/16—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
    • 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
    • B66C13/10—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for preventing cable slack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C15/00—Safety gear

Definitions

  • the present invention relates to a crane, in particular in the form of a mobile fast-erecting crane, with a stranding and a testing device for testing at least one rope of the stranding for sufficient strength, and a method for testing the stranding of such a crane, wherein at least one rope, in particular the Katzfahrseil, with a strigzugkraft is applied.
  • the present invention has for its object to provide an improved crane and an improved method for testing the stranding of a crane of the type mentioned, avoid the disadvantages of the prior art and further develop the latter in an advantageous manner.
  • a high level of security in a cat rope rupture is to be achieved without buying this with major losses in space requirements and the weight of the crane.
  • the object is achieved by a method according to claim 1 and a crane according to claim 3.
  • Preferred embodiments of the invention are the subject of the dependent claims.
  • said cable tensioning device does not form a separate auxiliary component used only for the test mode, but is also used in regular crane operation or formed by a functional component used for regular crane operation.
  • said cable tensioning device may be operated in a crane operating mode in addition to said test mode by tensioning the cable with a crane operating tension less than said test tensile force by said double function of said cable tensioning device said test function can be performed without requiring additional space or to cause extra weight.
  • the rope tensioning device used for crane operation is used at the same time as a test device or in test mode in order to detect damaged, self-aged ropes before commissioning the crane.
  • the cable tensioning device can advantageously be controlled by a control device which automatically moves the cable tensioning device between the test mode and the Kran GmbHmodus switch or controls in each of these operating modes accordingly.
  • the cable tensioning device can advantageously be controlled by test mode control means such that the test tensile force swells, i. rapidly ascending and descending to an operationally occurring Seilkraft- spitzenrise is driven, wherein the swelling reciprocating fürzugkraft is advantageously also on the said Seilkraftspitzenrise also controllable to exercise a lying at least slightly above the usual cable force peaks test load on the rope.
  • the educating fürzugkraft is advantageously also on the said Seilkraftspitzenrise also controllable to exercise a lying at least slightly above the usual cable force peaks test load on the rope.
  • the Norwegian swelling in the range of about 80% to 120% reciprocating to the operationally occurring Seilkraftspitzen be driven.
  • said cable tensioning device may be actuated by crane operation control means which set or control the operating tension applied to the cable to a predetermined set point, said set point being a constant, preselectable value, or alternatively may vary depending on different operating conditions, For example, to the effect that for different boom rocking angle different levels of operating clamping forces are exerted on the rope, for example, in a sharpened boom higher operating clamping force than in a horizontally oriented boom.
  • different constellations may be selected.
  • the crane may comprise a preferably tiltable boom, on which a trolley is movably mounted, which can be moved by means of a Katzfahrseils. Said test device with said cable tensioning device can be assigned to said Katzfahrseil.
  • the installation situation of the rope tensioning device can in principle be chosen differently or assigned to different rope sections.
  • the rope tensioning device an outer run of the trolley rope, which leads from the trolley to a protruding boom end.
  • the said outer strand of the Katzfahrseils is checked for its strength, which is avoided especially in luffing jibs unpleasant Situaiton that ruptures the heavily loaded outer strand of Katzfahrseils and the trolley raced uncontrollably to the foot of the tipped boom down.
  • the cable tensioning device can in principle be designed differently.
  • the cable tensioning device comprises a movably mounted Seilumlenkrolle, which is movable by a Stellaktor to change by moving the pulley the deflected cable path and thereby the cable tension.
  • the aforementioned cable deflection roller can in particular form part of a cable shearing, for example, be part of a simple cable shearing of the trolley rope on the boom of the crane.
  • the rope tensioning device can be arranged in the interior of the jib or integrated into the jib.
  • the Katzfahrseil be guided in the interior of the boom to a reeving, of which at least one Seilumlenkrolle is used as a cable tensioning device.
  • the Stellaktor the rope tensioning device can in principle be designed differently, for example in the form of an electromechanical spindle.
  • a hydraulic cylinder for actuating the cable tensioning device may be provided, which can be controlled by the then hydraulically designed control device.
  • Figure 1 A schematic side view of a mobile construction crane, which supported on a rotatable superstructure tower carries a luffing boom with trolley
  • Figure 2 a schematic representation of the Katzfahr drive for the trolley on the boom and the Katzfahrseil associated testing device.
  • Mobile construction crane or mobile tower crane in the form of a fast-erecting crane to be formed which includes a tower 2, which is supported on a revolving platform, which sits on an undercarriage and an upright axis of rotation can be rotated by means of a rotary drive device.
  • Said undercarriage may be designed as a truck or otherwise movable, but possibly also a firmly anchored or supported support base.
  • the tower 2 can carry a boom 3, which can be tilted up and down about a horizontal, transverse rocking axis, cf. FIG. 1.
  • a rocker drive device provided for this purpose can act on the boom 3, for example, via the bracing stranding.
  • a trolley 4 is mounted longitudinally movable, which can be moved by a trolley drive means 13 with a Katzfahrseil 6.
  • a trolley drive means 13 with a Katzfahrseil 6.
  • About the said trolley 4 can run a hoist rope 5, to which a load harness may be connected, for example in the form of a load hook to lift a load in a known manner.
  • a hoist drive means can drive a hoist drum on which said hoist rope 5 runs.
  • the Katzfahrseil 6 may be posted on the trolley 4 and deflected by pulleys 14 at the outer and inner ends of the boom. Between the said pulleys 14, the Katzfahrseil of a drive winch 15th
  • the Katzfahrseilsystem includes a Seileinscherung 12, which must be simple, can be arranged in the interior of the boom 3 and an outer strand 6a of the trolley 6 or an outer Katzfahrseil 6a can be ordered.
  • Said outer Katzfahrseil 6a leads from the drive winch 15 via the guide roller 14 at the outer, cantilevered boom end to the trolley 4, see. FIG. 2.
  • the Katzfahrseil 6 is guided around two pulleys 10, of which at least one longitudinally adjustable - ie at least approximately - in the longitudinal direction of the Seiltrumabête running between the pulleys or from the pulleys - is adjustable, so that of the Katzfahrseil to be taken rope path or deflection in its length is variable and thus the cable tension is variable.
  • the adjustable or displaceable Seilumlenkrolle 10 is associated with a Stellaktor 11, which may be formed as a hydraulic actuating cylinder example and can move around the guide roller 10.
  • Figure 2 shows in retracted representations retracted and extended positions of the movable Seilumlenkrolle 10 in which the Katzfahrseil is less and more tense, and in a representation with a solid line a middle position in which the Katzfahrseil is slightly stretched.
  • Said Stellaktor 11 is controlled by a control device 9 which extends the Stellaktor 11 in a test mode or moves so that the Seilumlenkrolle 10 causes a strong rope tension or a scholarzugkraft on the Katzfahrseil 6.
  • the control device 9 controls the Stellaktor 11 in a position in which the Katzfahrseil 6 is more easily tensioned or acted upon by the desired operating clamping force.
  • This can be adjusted for example by means of a poppet valve with which the hydraulic Stellaktor 11 is driven to a lower pressure level.
  • This lower pressure level during crane operation can be additionally monitored by means of pressure switches and this advantageously chosen so that optimal cable prestressing is ensured after each crane installation for the trolley drive.
  • the Stellaktor 11 forms together with said Seilumlenkrolle 10 so a rope tensioning device 7, which can be used simultaneously as a test device 8.
  • the educauchkraft is advantageously performed in the manner described above swelling to the operationally occurring Seilspitzenkraftmulti to detect previous damage to the rope and to avoid accidents in regular crane operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

La présente invention porte sur une grue [1] se présentant notamment sous la forme d'une grue mobile à montage rapide, comprenant un câblage et un dispositif de vérification destiné à vérifier au moins un câble [6] du câblage pour s'assurer qu'il présente une résistance suffisante, ainsi que sur un procédé pour vérifier le câblage d'une telle grue, au moins un câble, notamment le câble de déplacement du chariot, étant soumis à une force de traction d'essai. Selon l'invention, le câble [6], lorsqu'il est monté sur le grue [1] mais avant mise en fonctionnement de la grue, est soumis à l'action d'une force de traction d'essai exercée par un dispositif de tension de câble [7] qui est utilisé dans un mode d'essai.
EP14712207.1A 2013-04-08 2014-03-14 Grue, ainsi que procédé d'essai du câblage de cette grue Active EP2984020B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013006073.7A DE102013006073A1 (de) 2013-04-08 2013-04-08 Kran sowie Verfahren zur Prüfung der Verseilung eines solchen Krans
PCT/EP2014/000690 WO2014166574A1 (fr) 2013-04-08 2014-03-14 Grue et procédé pour vérifier le câblage d'une telle grue

Publications (2)

Publication Number Publication Date
EP2984020A1 true EP2984020A1 (fr) 2016-02-17
EP2984020B1 EP2984020B1 (fr) 2017-05-03

Family

ID=50349569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14712207.1A Active EP2984020B1 (fr) 2013-04-08 2014-03-14 Grue, ainsi que procédé d'essai du câblage de cette grue

Country Status (4)

Country Link
EP (1) EP2984020B1 (fr)
DE (1) DE102013006073A1 (fr)
ES (1) ES2636450T3 (fr)
WO (1) WO2014166574A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106219425B (zh) * 2016-08-13 2018-07-10 山东黄金地质矿产勘查有限公司 钻塔导向架卷扬辅助装置
FR3067706B1 (fr) * 2017-06-15 2019-07-26 Manitowoc Crane Group France Dispositif et procede de tension automatisee d’un cable distributeur pour grue
CN111102976A (zh) * 2018-10-25 2020-05-05 哈尔滨工业大学 小行星探测器着陆缓冲过程模拟实验台
FR3094707B1 (fr) * 2019-04-08 2021-03-05 Manitowoc Crane Group France Système et procédé de réglage à distance d’une tension dans un câble distributeur de grue
CN112340057B (zh) * 2020-11-05 2022-06-28 燕山大学 一种用于舰载直升机着舰辅助设备的可靠性增长平台

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3148707C1 (de) * 1981-12-09 1983-06-09 Transnuklear Gmbh, 6450 Hanau Verfahren und Vorrichtung zum Prüfen von Krananlagen und Belademaschinen
DE19713471C2 (de) * 1997-03-20 2001-03-01 Hans Warner Gmbh & Co Kg Prüfvorrichtung und -verfahren
FI104816B (fi) * 1997-09-24 2000-04-14 Kci Kone Cranes Int Oy Laite nosturin nostoköysistöön kohdistuvan ylikuormituksen ja törmäysliike-energian vaimentamiseksi
US6250486B1 (en) * 1999-09-13 2001-06-26 Masamitsu Enoki Integrated balanced wire rope reeving system for cargo container handling cranes
KR20090120578A (ko) * 2008-05-20 2009-11-25 한국타워크레인주식회사 타워크레인의 과부하 방지장치
DE202010008078U1 (de) * 2010-07-14 2010-10-07 Wilbert Turmkrane Gmbh Sicherheitssystem für eine Laufkatze eines Krans
DE202011001846U1 (de) * 2011-01-24 2012-04-30 Liebherr-Components Biberach Gmbh Vorrichtung zur Erkennung der Ablegereife eines hochfesten Faserseils beim Einsatz an Hebezeugen
CN202429893U (zh) * 2011-12-31 2012-09-12 上海宏岸港口机械有限公司 岸桥及其液压张紧装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014166574A1 *

Also Published As

Publication number Publication date
WO2014166574A1 (fr) 2014-10-16
EP2984020B1 (fr) 2017-05-03
ES2636450T3 (es) 2017-10-05
DE102013006073A1 (de) 2014-10-09

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