EP2984020B1 - Grue, ainsi que procédé d'essai du câblage de cette grue - Google Patents

Grue, ainsi que procédé d'essai du câblage de cette grue Download PDF

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Publication number
EP2984020B1
EP2984020B1 EP14712207.1A EP14712207A EP2984020B1 EP 2984020 B1 EP2984020 B1 EP 2984020B1 EP 14712207 A EP14712207 A EP 14712207A EP 2984020 B1 EP2984020 B1 EP 2984020B1
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EP
European Patent Office
Prior art keywords
rope
crane
test
accordance
trolley
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
EP14712207.1A
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German (de)
English (en)
Other versions
EP2984020A1 (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
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Liebherr Werk Biberach GmbH
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Publication of EP2984020A1 publication Critical patent/EP2984020A1/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
    • 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.
  • 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 rope tensioning device can advantageously be controlled by a control device which automatically moves the rope tensioning device between the test operating mode and to switch to the crane operating mode, or to control it accordingly in each of said operating modes.
  • 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 SeilkraftspitzenI is driven, the swelling reciprocating fürzugkraft is advantageously also on the said Seilkraftspitzenrise also controllable to exert a lying at least slightly above the usual cable force peaks test load on the rope.
  • the educazugkraft swelling in the range of about 80% to 120% reciprocating to the operationally occurring Seilkraftspitzen be driven.
  • said rope tensioning device may be actuated by crane operation control means which set or control the operating tension applied to the rope 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 cable deflection roller which can be moved by a positioning actuator in order to be able to change the deflected cable path and thereby the cable tension by moving the deflection roller.
  • the said cable deflection roller can in particular form part of a cable shearing, for example, be part of a simple rope insertion of the Katzfahrseils 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.
  • Mobile tower crane or mobile tower crane in the form of a fast-erecting crane may be formed, comprising a tower 2, which is supported on a revolving platform, which sits on an undercarriage and an upright pivot axis by means of a slewing drive means can be rotated.
  • 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 guying 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 assigned can be.
  • 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.
  • FIG. 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.
  • a manual retightening with additional required facilities can be omitted.
  • 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)

Claims (11)

  1. Procédé d'essai du câblage d'une grue (1), en particulier d'une grue à montage rapide mobile, selon lequel au moins un câble (6), en particulier un câble de chariot, est soumis à l'action d'une force de traction d'essai,
    caractérisé en ce que
    le câble (6), dans un état monté sur la grue, est soumis à l'action de la force de traction d'essai par un dispositif tendeur de câble (7), qui peut être utilisé dans un mode d'essai avant l'activation du fonctionnement de la grue.
  2. Procédé selon la revendication précédente, dans lequel après la mise à disposition de la force de traction d'essai, le dispositif tendeur de câble (7) est commuté dans un mode de fonctionnement de grue, dans lequel le câble (6) est soumis par le dispositif tendeur de câble (7) à l'action d'une force de tension de fonctionnement de grue plus faible par comparaison à la force de traction d'essai.
  3. Grue, en particulier grue à montage rapide mobile, comprenant un câblage ainsi qu'un dispositif d'essai (8) destiné à contrôler la résistance suffisante d'au moins un câble (6) du câblage,
    caractérisé en ce que
    le dispositif d'essai (8) comprend un dispositif tendeur de câble (7), qui peut être utilisé dans un mode d'essai, dans lequel le câble (6), dans un état monté sur la grue, peut être soumis à l'action d'une force de traction d'essai.
  4. Grue selon la revendication précédente, dans laquelle en plus dudit mode d'essai, le dispositif tendeur de câble (7) peut être utilisé dans un mode de fonctionnement de grue, dans lequel le câble (6) peut être tendu avec une force de tension de fonctionnement de grue qui est inférieure à la force de traction d'essai.
  5. Grue selon l'une des revendications précédentes, dans laquelle un dispositif de commande (9) est prévu pour la commande du dispositif tendeur de câble (7) et comporte des moyens de commande de mode d'essai destinés à commuter automatiquement le dispositif tendeur de câble (7) en mode d'essai après le montage du câble et avant l'activation du fonctionnement de la grue.
  6. Grue selon la revendication précédente, dans laquelle la force de traction d'essai sur le câble (6) peut être commandée par lesdits moyens de commande de mode d'essai de manière pulsatoire autour d'un niveau maximal de force de câble se produisant en conditions de fonctionnement et au-delà de ce niveau maximal de force de câble.
  7. Grue selon l'une des revendications précédentes, dans laquelle la grue comprend une flèche (3) de préférence basculante, sur laquelle est monté un chariot (4) de manière déplaçable, qui peut être déplacé au moyen d'un câble de chariot (6), le dispositif d'essai (8) étant associé audit câble de chariot (6).
  8. Grue selon l'une des deux revendications précédentes, dans laquelle le dispositif de commande (9) comporte des moyens de commande de fonctionnement de grue, de préférence un dispositif de vanne de commande de pression, pour la commande automatique de la force de tension de fonctionnement de grue exercée sur le câble (6) en mode de fonctionnement de grue.
  9. Grue selon la revendication 7, dans laquelle le dispositif tendeur de câble (7) sollicite un brin extérieur du câble de chariot (6), qui mène du chariot (4) à une extrémité de flèche en porte-à-faux.
  10. Grue selon l'une des revendications précédentes, dans laquelle le dispositif tendeur de câble (7) comprend une poulie de renvoi de câble (10) montée mobile, qui peut être déplacée par un actionneur de réglage (11).
  11. Grue selon la revendication précédente, dans laquelle ladite poulie de renvoi de câble (7) forme une partie d'un mouflage de câble (12), de préférence d'un mouflage de câble (12) simple sur la flèche (3) de la grue, et/ou l'actionneur de réglage (11) est un actionneur hydraulique et le dispositif de commande (9) est un dispositif de commande hydraulique.
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 EP2984020A1 (fr) 2016-02-17
EP2984020B1 true 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 (6)

* 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
CN115127946B (zh) * 2022-06-28 2025-08-01 江苏省特种设备安全监督检验研究院 一种起重机起升系统疲劳对比验证设备及验证方法

Family Cites Families (8)

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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

Also Published As

Publication number Publication date
EP2984020A1 (fr) 2016-02-17
ES2636450T3 (es) 2017-10-05
DE102013006073A1 (de) 2014-10-09
WO2014166574A1 (fr) 2014-10-16

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