EP2984020A1 - Crane and method for testing the cabling of such a crane - Google Patents
Crane and method for testing the cabling of such a craneInfo
- 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
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000008961 swelling Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 3
- 241000282326 Felis catus Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 241001233037 catfish Species 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
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.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013006073.7A DE102013006073A1 (en) | 2013-04-08 | 2013-04-08 | Crane and method for testing the stranding of such a crane |
PCT/EP2014/000690 WO2014166574A1 (en) | 2013-04-08 | 2014-03-14 | Crane and method for testing the cabling of such a crane |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2984020A1 true EP2984020A1 (en) | 2016-02-17 |
EP2984020B1 EP2984020B1 (en) | 2017-05-03 |
Family
ID=50349569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14712207.1A Active EP2984020B1 (en) | 2013-04-08 | 2014-03-14 | Crane, as well as method for testing the cabling of such crane |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2984020B1 (en) |
DE (1) | DE102013006073A1 (en) |
ES (1) | ES2636450T3 (en) |
WO (1) | WO2014166574A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106219425B (en) * | 2016-08-13 | 2018-07-10 | 山东黄金地质矿产勘查有限公司 | Boring tower leading truck winding auxiliary device |
FR3067706B1 (en) * | 2017-06-15 | 2019-07-26 | Manitowoc Crane Group France | DEVICE AND METHOD FOR AUTOMATED VOLTAGE CABLE DISPENSER FOR CRANE |
CN111102976A (en) * | 2018-10-25 | 2020-05-05 | 哈尔滨工业大学 | Simulation experiment table for landing buffering process of asteroid probe |
FR3094707B1 (en) * | 2019-04-08 | 2021-03-05 | Manitowoc Crane Group France | System and method for remote adjustment of a tension in a crane distributor cable |
CN112340057B (en) * | 2020-11-05 | 2022-06-28 | 燕山大学 | Reliability increasing platform for carrier-based helicopter landing auxiliary equipment |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3148707C1 (en) * | 1981-12-09 | 1983-06-09 | Transnuklear Gmbh, 6450 Hanau | Method and device for testing crane systems and loading machines |
DE19713471C2 (en) * | 1997-03-20 | 2001-03-01 | Hans Warner Gmbh & Co Kg | Test device and method |
FI104816B (en) * | 1997-09-24 | 2000-04-14 | Kci Kone Cranes Int Oy | Arrangement for damping the overload and thrust movement energy directed against the lifting tackle of a lifting crane |
US6250486B1 (en) * | 1999-09-13 | 2001-06-26 | Masamitsu Enoki | Integrated balanced wire rope reeving system for cargo container handling cranes |
KR20090120578A (en) * | 2008-05-20 | 2009-11-25 | 한국타워크레인주식회사 | Overload limiting apparatus |
DE202010008078U1 (en) * | 2010-07-14 | 2010-10-07 | Wilbert Turmkrane Gmbh | Safety system for a trolley of a crane |
DE202011001846U1 (en) * | 2011-01-24 | 2012-04-30 | Liebherr-Components Biberach Gmbh | Device for detecting the Ablegereife a high-strength fiber rope when used on hoists |
CN202429893U (en) * | 2011-12-31 | 2012-09-12 | 上海宏岸港口机械有限公司 | Shore bridge and hydraulic tensioning device of shore bridge |
-
2013
- 2013-04-08 DE DE102013006073.7A patent/DE102013006073A1/en not_active Withdrawn
-
2014
- 2014-03-14 WO PCT/EP2014/000690 patent/WO2014166574A1/en active Application Filing
- 2014-03-14 EP EP14712207.1A patent/EP2984020B1/en active Active
- 2014-03-14 ES ES14712207.1T patent/ES2636450T3/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2014166574A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2984020B1 (en) | 2017-05-03 |
ES2636450T3 (en) | 2017-10-05 |
WO2014166574A1 (en) | 2014-10-16 |
DE102013006073A1 (en) | 2014-10-09 |
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