EP0123846B1 - Chariot avec dispositif de levage à câble avec amortissement des oscillations pendulaires - Google Patents

Chariot avec dispositif de levage à câble avec amortissement des oscillations pendulaires Download PDF

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Publication number
EP0123846B1
EP0123846B1 EP19840102833 EP84102833A EP0123846B1 EP 0123846 B1 EP0123846 B1 EP 0123846B1 EP 19840102833 EP19840102833 EP 19840102833 EP 84102833 A EP84102833 A EP 84102833A EP 0123846 B1 EP0123846 B1 EP 0123846B1
Authority
EP
European Patent Office
Prior art keywords
cable
mechanism according
load
hoist mechanism
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.)
Expired
Application number
EP19840102833
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German (de)
English (en)
Other versions
EP0123846A1 (fr
Inventor
Herbert Kurz
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.)
VULKAN KOCKS GESELLSCHAFT MIT BESCHRAENKTER HAFTUN
Original Assignee
Fried Krupp AG
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Filing date
Publication date
Application filed by Fried Krupp AG filed Critical Fried Krupp AG
Publication of EP0123846A1 publication Critical patent/EP0123846A1/fr
Application granted granted Critical
Publication of EP0123846B1 publication Critical patent/EP0123846B1/fr
Expired 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
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads

Definitions

  • the invention relates to a cable hoist of a crane, in particular a container crane, with two trolleys which can be adjusted at a distance from one another and which, for pendulum damping, are connected to the load and have stay cables which diverge in the direction of travel plane.
  • the invention has for its object to provide a rope hoist for the purpose described, in which a sufficient inclination of sway damping cables is maintained even when lowering or lifting the load through narrow shafts. This object is achieved in a cable hoist of the type mentioned in the features of the characterizing part of claim 1.
  • the invention has the advantage that the lifting cables carrying the load always run vertically and therefore no fluctuations in the lifting forces occur. Another important advantage is that the inclination of the stay cables used exclusively for the pendulum damping can be changed almost arbitrarily according to the requirements of the crane operation. In order to achieve the maximum inclined position of the stay cables, they preferably engage the load or its receiving means in the vertical load center plane.
  • a further preferred embodiment of the invention consists in that the essentially vertical hoisting ropes act on support rollers which are arranged in pairs on both sides of the load or the load-carrying means and with their axes symmetrical to the vertical load-center plane.
  • the lifting rope attachment points can be arranged as far as possible on the outside of the load suspension device or the traverse, which in addition to good pendulum damping also opens up the possibility of the load tipping in all directions (so-called list and trim movements) ).
  • a container hangs on a crossbeam 2 serving as a load-carrying means, which, on its longitudinal extension at both ends of which is assigned paired supporting rollers 3c and 4c, which deflect lifting cables 13 and 14, and supporting rollers 5c and 6c for guiding stay cables 15 and 16.
  • the support rollers 5c and 6c are arranged coaxially in the load center plane indicated by chain lines 7 and extended beyond the load 1, while the support rollers 3c and 4c are arranged symmetrically to the load center plane near the corners of the cross member 2.
  • the hoisting ropes 13 and 14 are wound onto the drum 3 of a winch which is arranged in a stationary manner on the crane frame (not shown) and, starting from here, also lead to a main cat 8 via rope pulleys 3a and 4a, which are assigned to one end of the crane frame and extend as a boom, parallel to the crane boom can be moved along the trolley track arranged on the crane boom.
  • the main cat 8 has at its end assigned to the cables 13 and 14 a pair of axially parallel Rope pulleys 3b and 3d, which is assigned to the hoisting rope 13 and the supporting roller 3c, and is accordingly in operation above the supporting roller 3c, while the lifting rope 14 is assigned to a pair of axially parallel rope pulleys 4b and 4d, which belongs to the supporting roller 4c.
  • the rope 13 coming from the rope reel 3a is subsequently deflected downwards via the rope reel 3b and fed to the support roller 3c, from which it takes its way over the rope reel 3d and from there again in the horizontal direction along the crane lane a fixed point 3e, which is assigned to the other end of the crane boom.
  • the rope 14 takes its way from the rope pulley 4a via the pulleys 4b. 4c and 4d to the fixed point 4e arranged next to the fixed point 3e.
  • the stay cables 15 and 16 which serve to dampen the pendulum, are received by a cable drum 5 coaxial with the drum 3. From here, they run in a corresponding cable guide, as applies to the lifting ropes 13 and 14, over rollers 5a, 5b, 5c, 5d or rollers 6a, 6b, 6c, 6d, each to a fixed point 5e or 6e.
  • the rollers 5b and 5d as well as the rollers 6b and 6d are each arranged coaxially in pairs.
  • the rollers 5b and 5d are mounted on an auxiliary trolley 9 arranged in relation to their direction of travel next to the main trolley 8, while the rollers 6b and 6d of a further auxiliary trolley 10, which runs on the other side of the main trolley 8, are arranged.
  • Lifting ropes 13 'and 14' and stay cables 15 'and 16' are correspondingly and symmetrically assigned to the other end of the traverse 2, to which, in addition to the corresponding cable drums 3 'and 5', the corresponding cable and support rollers also belong.
  • the cable guide is not fully extended in the figure.
  • the load 1 is not moved in the vertical direction without actuating the drums 3, 5, 3 'and 5' of the hoist, as is known per se.
  • the cable drum 5 is simultaneously designed as a storage drum and provided with a so-called standstill motor 21, as shown in FIG. 3, which compensates for the difference in length between the stay cables and the lifting cables as a tensioning device.
  • the motor 21 exerts such a moment on the drum 5 via a gear 22 that slack rope formation is avoided in the ropes 15 and 16, respectively.
  • This tightening device also includes a freewheel locking device 23 and a braking device 24, each of which is adapted to requirements in terms of its dimensions and setting.
  • the cable storage device can also be arranged at the other free and fixed end of the stay cables 15 or 16, ie at points 5e or 6e. In this case, the drums 3 and 5 could be combined into a single rope drum for the lifting and stay cables.
  • FIG. 4 Another embodiment of a cable storage device is shown in FIG. 4.
  • the stay cable 15 is guided over two rollers 5f and 5g, each of which is mounted axially parallel to one another at one end of a hydraulic cylinder unit 25.
  • the storage effect can be increased by using additional rollers, which then form a pulley arrangement.
  • the piston rod 26 of the hydraulic cylinder 25 By extending the piston rod 26 of the hydraulic cylinder 25 by pressurizing the piston 27 from the bottom, the distance between the rollers 5f and 5g is increased, and with it the stored rope length.
  • the pressure oil is introduced from a tank 25 through a line 29 from a motor-driven pump 30 via a check valve 31 into the hydraulic cylinder.
  • a pressure relief valve 33 which is connected into a discharge line 32 branched off between the pump 30 and the check valve 31, is set in such a way that the pressure built up in the hydraulic cylinder is sufficient to prevent slack rope formation.
  • a directly connected between the line 29 and the drain line 32 further pressure relief valve 34 is set to a higher pressure, which means that a greater force must be applied when pulling off the cable 15 than when pulling in the cable by extending the piston rod 26. Not at the extendable side of the cylinder 25, the rope 15 is fastened again to the fixed point 5e.
  • the stay cables can be equipped with a hydraulic pendulum damping device, which has two hydraulic cylinders 5h and 6h, the cylinder 5h and correspondingly the piston on the axis of the rope pulley 5a and correspondingly the piston of the cylinder 6h on the axis of the Rope pulley 6a attacks, as shown in Fig. 1.
  • Cables 5h 'and 6h' are of course assigned to the pulleys 5a 'and 6a' in a corresponding manner.
  • the associated hydraulic device with the two hydraulic cylinders 5h and 6h consists of a motor-driven pump 35, a gas pressure accumulator 36 connected in parallel, two check valves 37 and 38 as well as a pressure relief valve 40 and 41 connecting the respective hydraulic cylinder directly to an oil reservoir 39.
  • the pressure generated by the pump 35 is limited by a pressure relief valve 44 connected upstream of the pump.
  • the gas-loaded pressure accumulator 36 counteracts a strong pressure drop if oil is demanded in larger quantities in a short time than the pump 35 can deliver.
  • Fig. 5 shows an embodiment of the main trolley 8 and the auxiliary trolleys 9 and 10.
  • the main trolley is supported by four wheels 45 on two trolley rails 46ab, which are arranged on a bridge beam 47 of the crane boom.
  • the cable pulleys 3b, 3d, 4b and 4d of the cable hoist are located at one end and the corresponding pulleys in a symmetrical arrangement at the other end.
  • hydraulic cylinders 49 and 49 'located under the cylinders 48 and 48' are articulated in a corresponding manner on the auxiliary trolley 9 and the main trolley 8.
  • the hydraulic cylinders connected in pairs are used for adjusting the distance between the main trolley 8 and the relevant auxiliary trolley 9 or 10.
  • the auxiliary trolley 9 provided with the rope pulleys 5b, 5d, 5b 'and 5d' for the deflection of the stay cables is supported by two wheels 50 on the Trolley rails 46 and two wheels 51 on two trolley rails 52 arranged on the main trolley 8.
  • the auxiliary trolley 10 is provided on its outside with running wheels 53 and further running wheels 54, which are again supported on the main trolley 8 via rails 55.
  • the auxiliary trolleys 9 and 10 each have two cantilever-like arms 56 and 57 which hold the main trolley in the area of their rails 52 and 55 each overlap, as can best be seen from FIG. 6. From Fig. 6 it can also be seen that the two head ends of the main cat carrying the pulleys are connected to each other by a bracket 58 which is guided around under the bridge girder 47. Corresponding brackets 59 and 60 each have auxiliary cats 9 and 10.
  • FIG. 7 differs from that of FIG. 6 essentially in that the main trolley 61 carries the cable hoist, which consists of a coaxial drum 62.
  • the drum 62 is arranged in such a way that all the ropes run on or from it in the extended load center plane 7.
  • the hoisting ropes 63 are deflected outwards via the support rollers 64 arranged on the crossmember and are each fastened to the underside of the main trolley 61 in such a way that symmetry results with respect to the vertical load plane 7.
  • One stay cable 65 is deflected via a support roller 66 arranged in the load center plane 7 and fed to a cable roller 67 which is arranged on an arm 68 of the auxiliary trolley 69 pointing downward.
  • the stay cable 65 passes via a further deflection roller 70 to a hydraulic cylinder 71 serving as a tensioning device and is connected to the end of its piston rod.
  • the hydraulic cylinder 71 is hinged at its other end to the auxiliary trolley 69.
  • the second auxiliary trolley 69 A has a hydraulic cylinder 71 A, which is guided with the second stay cable 65 A, which is guided around by the drum 62 via a support roller 66 coaxial with the support roller 66 A in the opposite direction of rotation.
  • the main cat is connected to the two auxiliary cats again via distance-adjusting hydraulic cylinders 72.
  • each of the two auxiliary cats is again supported on the main cat 61.
  • the hydraulic cylinders 71 or a separate drum of the cable hoist can serve as cable storage devices for the stay cables, which can be arranged symmetrically to the drum 62 with respect to the load medium level 7.
  • auxiliary trolleys with the main trolley via hydraulic cylinder units or via other suitable gear devices for adjusting the distance
  • connection of the auxiliary trolleys with the main trolley via hydraulic cylinder units or via other suitable gear devices for adjusting the distance has the advantage that only the main trolley needs to be provided with a travel drive.
  • self-propulsion is possible for all three cats, for which purpose speed-controllable electric motors are expediently used to achieve synchronism.
  • These can be superimposed on electrical speed controls to adjust relative speeds between the cats to adapt to specific requirements of driving.
  • the following automatic controls of the driving operation are expedient: When the auxiliary trolley approaching the end of the trolley track, both auxiliary trolleys stop, while the main trolley reaches its possible end position continues. As a result, the track length is used while maintaining a large spread angle of the stay cables.
  • the lifting trolleys must be fully or a certain amount close to the main trolley during lifting operation at a specific lifting height so that the load can be guided through a narrow shaft.
  • the auxiliary trolley then moves at the same speed and is finished when the set lifting height is reached.
  • a number of other programming options for driving and lifting operations that relieve the crane operator are possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Safety Of Cranes (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Vibration Prevention Devices (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)

Claims (12)

1. Dispositif de levage à câble d'une grue, notamment d'une grue pour conteneurs, qui comprend au moins deux chariots (9,10) dont la distance réciprogue peut être modifiée et qui, pour l'amortissement des oscillations pendeulaires, coportent des câbles inclinés (15,16) reliés à la charge (1) et divergents vers le haut dans le plan du sens de la marche, caractérisé en ce qu'il comporte, entre les deux chariots (chariots auxiliarires 9,10,69,69A), un autre chariot (chariot principal 8, 61) auqel sont reliés des câbles porteurs (13.14) sensiblement verticaux et en ce que les câbles inclinés (15,16) sont munis d'un dispositif (21-24,71) assurant le maintien de la rigidité.
2. Dispositif de levage à câble selon la revendication 1, caractérisé en que les câbles inclinés (15,16) sont munis chacun d'un dispositif enrouler de câble.
3. Dispositif de levage à câble selon la revendication 2, caractérisé en ce que le dispositif enrouleur de câble est un dispositif à cylindre hydraulique (25) comportant des poulies (5f, 5g) dont l'entraxe peut être modifié.
4. Dispositif de levage selon la revendication 3, caractérisé en ce que le dispositif (25) à cylindre hydralique est en même temps le dispositif assurant le maintien de la rigidité.
5. Dispositif de levage selon la revendication 2, caractérisé en que la dispositif enrouleur de câble est un tambour à câble qui comporte, comme dispositif assurant le maintien de la rigidité, un verrouillage de roue libre (22) et un frein de bosse (24) et peut être entraîné par un moteur d'arrêt (21).
6. Dispositif de levage selon l'une des revendications 1, 2 ou 3, caractérisé en ce que le dispositif assurant le maintien de la rigidité est une unité à vérin hydraulique (71) qui tend le câble incliné (65).
7. Dispositif de levage selon l'une des revendications 1 à 6, caractérisé en ce que la charge (1) ou le dispositif (2) portant la charge comporte au moins une paire de rouleaux porteurs (3c, 4c) de câbles de levage dont les axes sont disposés symétriquement par rapport au plan médian vertical (7) de la charge et en ce qu'à chaque paire de rouleaux porteurs (3c, 4c) de câbles de levage correspond une paire de rouleaux porteurs (5c. 6c) de câbles inclinés qui agissent sur la charge (1) dans le plan médian (7) de la charge.
8. Dispositif de levage selon la revendication 7, caractérisé en ce que les câbles de levage (63) et les câbles inclinés (65, 65A) restent dans le plan médian (7) de la charge pour s'engager sur leur tambour, monté sur le chariot principal ou en sortir.
9. Dispositif de levage selon la revendication 8, caractérisé en ce que tous les tambours à câbles (62) sont montés de manière à avoir le même axe.
10. Dispositif de levage selon l'une des revendications 1 à 9, caractérisé en ce que des chariots voisins les uns des autres sont reliés les uns aux autres par l'intermediaire de dispositifs à engrenages notamment d'unités à vérins hydrauliques 148,49), qui assurent le réglage des distances.
11. Dispositif de levage selon l'une des revendications 1 à 10, caractérisé en ce que l'un au moins des chariots auxiliaires (9,10, 69, 69A) prend appui à l'une de ses extrémités (56, 57) par l'intermédiaire d'un dispositif de guidage (52, 55), sur le chariot principal (8, 61).
12. Dispositif de levage selon l'une des revendications 1 à 11, caractérisé en ce que les câbles inclinés comportent chacun un dispositif d'amortissement des oscillations pendulaires (5h, 6h) à fonctionnement de préférence hydraulique.
EP19840102833 1983-04-02 1984-03-15 Chariot avec dispositif de levage à câble avec amortissement des oscillations pendulaires Expired EP0123846B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833312174 DE3312174C2 (de) 1983-04-02 1983-04-02 Laufkatzen-Seilhubwerk mit Pendeldämpfung
DE3312174 1983-04-02

Publications (2)

Publication Number Publication Date
EP0123846A1 EP0123846A1 (fr) 1984-11-07
EP0123846B1 true EP0123846B1 (fr) 1986-09-24

Family

ID=6195465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840102833 Expired EP0123846B1 (fr) 1983-04-02 1984-03-15 Chariot avec dispositif de levage à câble avec amortissement des oscillations pendulaires

Country Status (4)

Country Link
EP (1) EP0123846B1 (fr)
JP (1) JPS59190188A (fr)
DE (1) DE3312174C2 (fr)
IN (1) IN159915B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4314460A1 (de) * 1993-05-03 1994-11-10 Eberswalde Kranbau Gmbh Einrichtung zur Dämpfung der Pendelbewegung der Last eines Kranes, insbesondere eines Containerkranes

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI70556C (fi) * 1984-04-09 1986-09-24 Kone Oy Anordning foer vaendande av en last
DE3440013C2 (de) * 1984-11-02 1995-10-05 Vulkan Kocks Gmbh Laufkatzenpendeldämpfung
DE3830429C2 (de) * 1988-09-07 1996-05-30 Rexroth Mannesmann Gmbh Hubvorrichtung für eine an mehreren Hubseilen hängende Last, insbesondere Container-Kran
FR2643353B1 (fr) * 1989-02-17 1991-06-14 Caillard Dispositif pour eviter le balancement d'une charge sous un bati de support, notamment un portique
DE3925172C2 (de) * 1989-07-26 1994-06-23 Mannesmann Ag Lasthubsystem
DE4325946C2 (de) * 1993-08-02 1998-04-09 Fraunhofer Ges Forschung Dämpfungs- und Positioniereinrichtung zur aktiven Dämpfung der Pendelung von an Kranen aufgehängten Lasten
DE4416707A1 (de) * 1994-05-11 1995-11-16 Tax Ingenieurgesellschaft Mbh Verfahren zur Zielwegkorrektur eines Lastträgers und Lastentransportanlage
KR100304341B1 (ko) * 1999-04-30 2001-09-13 신영균 인양 화물의 진자진동 방지 장치
DE102004040663A1 (de) * 2004-08-20 2006-03-02 Gottwald Port Technology Gmbh Hubwerk, insbesondere dessen Seilanordnung
AT501098A1 (de) * 2004-11-02 2006-06-15 Ehrenleitner Franz Lasthebevorrichtung
SG124319A1 (en) 2005-02-02 2006-08-23 Nsl Engineering Pte Ltd Trolley and spreader assembly
AT502741B1 (de) * 2005-10-28 2008-06-15 Ehrenleitner Franz Lasthebevorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE398120C (de) * 1923-05-18 1924-07-04 Ag Deutsche Maschf Hebezeug mit mehreren Lastorganen
US2190093A (en) * 1939-06-23 1940-02-13 Loew S Inc Suspension system for a camera and light stage
DE2023281A1 (de) * 1970-05-13 1971-11-25 Demag Ag Einrichtung zum Verhindern von Schwingungsbewegungen eines Lastaufnahmemittels
JPS4957930A (fr) * 1972-10-07 1974-06-05
DD102130B1 (de) * 1973-02-15 1980-08-06 Reinhard Petzold Ferntriebkatze mit vorrichtung zum drehen und zur pendeldaempfung der last
DE2346226A1 (de) * 1973-09-13 1975-03-27 Walter Boczek Montagegeraet fuer kernreaktoren
FR2295904A1 (fr) * 1974-12-26 1976-07-23 Casteran Jean Dispositif de hissage d'un fardeau, destine a eviter son balancement
DE2917588C2 (de) * 1979-04-30 1983-12-01 Tax, Hans, 8000 München Lasthubsystem

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4314460A1 (de) * 1993-05-03 1994-11-10 Eberswalde Kranbau Gmbh Einrichtung zur Dämpfung der Pendelbewegung der Last eines Kranes, insbesondere eines Containerkranes

Also Published As

Publication number Publication date
JPS59190188A (ja) 1984-10-27
DE3312174A1 (de) 1984-10-04
DE3312174C2 (de) 1994-02-24
IN159915B (fr) 1987-06-13
EP0123846A1 (fr) 1984-11-07

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