EP0345105A1 - Vorrichtung zum automatischen Korrigieren der Horizontallage einer Lasthängevorrichtung - Google Patents

Vorrichtung zum automatischen Korrigieren der Horizontallage einer Lasthängevorrichtung Download PDF

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Publication number
EP0345105A1
EP0345105A1 EP89401237A EP89401237A EP0345105A1 EP 0345105 A1 EP0345105 A1 EP 0345105A1 EP 89401237 A EP89401237 A EP 89401237A EP 89401237 A EP89401237 A EP 89401237A EP 0345105 A1 EP0345105 A1 EP 0345105A1
Authority
EP
European Patent Office
Prior art keywords
load
cables
drums
shaft
rotation
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
EP89401237A
Other languages
English (en)
French (fr)
Other versions
EP0345105B1 (de
Inventor
Claude Noe
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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Publication date
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of EP0345105A1 publication Critical patent/EP0345105A1/de
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Publication of EP0345105B1 publication Critical patent/EP0345105B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/26—Rope, cable, or chain winding mechanisms; Capstans having several drums or barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means

Definitions

  • the invention relates to the field of maintaining loads in suspension, during handling, and in particular when these are moved vertically by means of flexible connecting members, such as cables, chains, ropes, ribbons. , etc. It relates in particular to the correction of the basis of such suspended loads.
  • the suspension of a load is done using two cables or two slings fixed on the one hand to the load, and on the other hand to a hooking head connected to a lifting device.
  • the two strands of the cable can be separated and preferably of the same length. They can also be connected to each other and constitute a single cable passing through the attachment head.
  • This second version is used when the load to be kept in suspension does not have a uniformly distributed weight and places imposed for the anchoring of cables on the load. This has the consequence, when the two strands are of equal length, that the load is not positioned horizontally.
  • the length of these two strands is adjustable by displacement of the cable in the attachment head.
  • the object of the invention is to allow the correction of the attitude of a suspended load during handling, and preferably to carry out this correction automatically.
  • the invention applies to load suspension devices comprising two lifting cables moored to the load to be suspended, and wound around two lifting drums, driven in rotation by a worm gear system.
  • the main object of the invention is an automatic attitude correction device for a load suspension device which comprises at least one lifting group consisting of two lifting cables to be fixed to a load and wound up. respectively around two drums integral in rotation with two toothed wheels each meshing with an endless screw, the two endless screws being integral in rotation with a single shaft of rotation.
  • the invention is characterized in that the two cables are wound in opposite directions on their respective drums, that the meshes of the toothed wheels on the worms are in opposite directions and that the device comprises means for translational movement of the 'shaft to rotate the drums in the same direction and thus reveal a relative elongation of a first cable and a relative shortening of the second cable, in order to vary the attitude of the load.
  • Automation of the system according to the invention is carried out using a level sensor placed on the suspended load and associated with a pulse generator controlling the means for translational movement of the shaft. In this way, any variation in the position of the load is detected by the position sensor which acts on the means for translational movement of the shaft.
  • a motor means is provided to rotate the shaft, independently of the device, so as to carry out the movements of raising and lowering of the load.
  • the translational movement of the shaft can be achieved by means of a hydraulic cylinder controlled by the pulse generator.
  • This correction effect can very well be amplified so as to be able to obtain a determined inclination of the moving load, and this at a given time.
  • the invention applies to lifting devices, vertical load movement, and more generally to load suspension devices, such as handling devices.
  • load suspension devices such as handling devices.
  • these devices must ensure the suspension of the load by means of two cables wound around two drums, the latter being driven in rotation by motor means.
  • This training must be carried out by means of a gear system of the worm-gear type.
  • a charge 2 is held suspended by two cables 4A and 4B each wound around two lifting drums 6A and 6B. These two drums 6A and 6B are mounted on the lifting group by means of their respective rotation shafts 10A and 10B mounted free in rotation in bearings 12A and 12B.
  • Each of the two shafts 10A and 10B is integral with a toothed wheel 8A and 8B.
  • Each of these two toothed wheels 8A and 8B is meshed with worms 14A and 14B both mounted on a single drive shaft 16. This is mounted to rotate freely on the lifting device by means of bearings 18. Motor means not shown drive the shaft 16 in rotation to ensure the movements of raising and lowering of the load 2.
  • the meshes of the worms 14A and 14B on the toothed wheels 8A and 8B, and the windings of the cables 4A and 4B around the drums 6A and 6B are carried out so that the rotation of the shaft 16 simultaneously causes the descent of the two cables 4A and 4B or the ascent of these two same cables.
  • the cables 4A and 4B have been shown wound around the drums 6A and 6B in opposite directions. This implies that the meshes of the toothed wheels 8A and 8B on the worms 14a and 14B are also reversed, as indicated by the arrows shown on the two toothed wheels 8A and 8B.
  • the main characteristic of the invention consists in mounting the free shaft 16 in translation along its axis of symmetry X, X ′. Indeed, it can be seen that a translational movement along this axis X, X ′ of the shaft 16 causes simultaneous rotations and in the same direction of the toothed wheels 8A and 8B. This has the consequence that the drums also rotate in the same direction, the cables 4A and 4B being wound up. conversely, said displacement in translation of the shaft 16 causes one of the two cables to rise and the other to descend.
  • the drums 6A and 6B must have the same diameters, and that it is the same for the toothed wheels 8A and 8B and the worms 14A and 14B.
  • the pitch of the gears of the toothed wheels on the worms must be the same. If it is desired to very precisely correct the position of the load 2, it is necessary for the toothed wheels 8A and 8B to have a large diameter relative to that of the drums 6A and 6B.
  • a level sensor 24 is placed on the load in a position allowing it to measure or detect an inclination along the straight line passing through the two anchoring points of the two cables 4A and 4B.
  • This level sensor 24 is associated with a pulse generator 20, itself controlling means for translational movement 22 of the shaft 16.
  • These translational displacement means 22 can be constituted by a device such as a hydraulic cylinder controlled by the pulse generator 20, this assembly constituting a hydraulic servo.
  • Other servomotor devices can also be provided to produce the translational movement of the shaft 16.
  • the only figure represents a lifting group made up of two cables 4A and 4B.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Control And Safety Of Cranes (AREA)
  • Transmission Devices (AREA)
EP19890401237 1988-05-04 1989-05-02 Vorrichtung zum automatischen Korrigieren der Horizontallage einer Lasthängevorrichtung Expired - Lifetime EP0345105B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8805995 1988-05-04
FR8805995A FR2631015B1 (fr) 1988-05-04 1988-05-04 Dispositif de correction automatique d'assiette pour un appareil de suspension d'une charge

Publications (2)

Publication Number Publication Date
EP0345105A1 true EP0345105A1 (de) 1989-12-06
EP0345105B1 EP0345105B1 (de) 1992-03-11

Family

ID=9365987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890401237 Expired - Lifetime EP0345105B1 (de) 1988-05-04 1989-05-02 Vorrichtung zum automatischen Korrigieren der Horizontallage einer Lasthängevorrichtung

Country Status (4)

Country Link
EP (1) EP0345105B1 (de)
DE (1) DE68900959D1 (de)
ES (1) ES2029744T3 (de)
FR (1) FR2631015B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2669317A1 (fr) * 1990-11-16 1992-05-22 Yvonne Rouzier Mouvements automatiques de levage synchronises guides par capteurs.
US5240298A (en) * 1990-08-21 1993-08-31 Teaby Gregory W Load-lifting and orienting apparatus
ITMI20091181A1 (it) * 2009-07-03 2011-01-04 Galimberti S R L Impianto di movimentazione e lavorazione di elementi pannellari preferibilmente in legno o metallo, e relativo procedimento di lavorazione
EP2490977B1 (de) * 2009-10-24 2019-02-20 Pfenning Elektroanlagen GmbH Portalhubwagen mit einzelseilwinden
CN111762706A (zh) * 2020-06-11 2020-10-13 中联重科股份有限公司 双卷扬单吊钩式起升设备及其卷扬同步校准方法和系统

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108750983B (zh) * 2018-06-07 2024-04-26 东莞理工学院 一种在辐射下工作的中子束窗维护平台吊装装置及其吊装方法
CN112077836B (zh) * 2020-09-08 2024-01-23 北京北特圣迪科技发展有限公司 一种基于四柔索牵引并联执行器的高架吊杆误差校正方法
CN112456334B (zh) * 2020-12-02 2022-10-28 太原重工股份有限公司 多卷扬抬吊吊具调平方法及系统

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB852491A (en) * 1958-06-19 1960-10-26 Ici Ltd Improvements in and relating to the manufacture of films
GB1015947A (en) * 1963-05-31 1966-01-05 Commissariat Energie Atomique Load handling machine
US3413028A (en) * 1966-10-07 1968-11-26 Sun Shipbuilding & Dry Dock Co Load equalizer
DE2053590A1 (de) * 1970-10-31 1972-05-04 Siemens Ag Ladevorrichtung für Container
US3663051A (en) * 1970-10-14 1972-05-16 United States Steel Corp C-hook leveling device for billet handling
GB1409178A (en) * 1973-03-16 1975-10-08 Lampart Zomancipari Muvek Drive apparatus
GB2001270A (en) * 1977-06-11 1979-01-31 Pfauter H Drive mechanism for a work table of a machine tool
FR2470079A1 (fr) * 1979-11-21 1981-05-29 Courtay Roger Appareil de manutention pour le support et le levage des charges
FR2558453A1 (fr) * 1984-01-19 1985-07-26 Socar Dispositif pour effectuer le chargement et le dechargement a niveau constant d'un conteneur a plateau mobile

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB852491A (en) * 1958-06-19 1960-10-26 Ici Ltd Improvements in and relating to the manufacture of films
GB1015947A (en) * 1963-05-31 1966-01-05 Commissariat Energie Atomique Load handling machine
US3413028A (en) * 1966-10-07 1968-11-26 Sun Shipbuilding & Dry Dock Co Load equalizer
US3663051A (en) * 1970-10-14 1972-05-16 United States Steel Corp C-hook leveling device for billet handling
DE2053590A1 (de) * 1970-10-31 1972-05-04 Siemens Ag Ladevorrichtung für Container
GB1409178A (en) * 1973-03-16 1975-10-08 Lampart Zomancipari Muvek Drive apparatus
GB2001270A (en) * 1977-06-11 1979-01-31 Pfauter H Drive mechanism for a work table of a machine tool
FR2470079A1 (fr) * 1979-11-21 1981-05-29 Courtay Roger Appareil de manutention pour le support et le levage des charges
FR2558453A1 (fr) * 1984-01-19 1985-07-26 Socar Dispositif pour effectuer le chargement et le dechargement a niveau constant d'un conteneur a plateau mobile

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5240298A (en) * 1990-08-21 1993-08-31 Teaby Gregory W Load-lifting and orienting apparatus
FR2669317A1 (fr) * 1990-11-16 1992-05-22 Yvonne Rouzier Mouvements automatiques de levage synchronises guides par capteurs.
EP0629577A1 (de) * 1992-03-06 1994-12-21 Teaby, John E. Last-Hebe und Orientierungsvorrichtung
ITMI20091181A1 (it) * 2009-07-03 2011-01-04 Galimberti S R L Impianto di movimentazione e lavorazione di elementi pannellari preferibilmente in legno o metallo, e relativo procedimento di lavorazione
EP2490977B1 (de) * 2009-10-24 2019-02-20 Pfenning Elektroanlagen GmbH Portalhubwagen mit einzelseilwinden
CN111762706A (zh) * 2020-06-11 2020-10-13 中联重科股份有限公司 双卷扬单吊钩式起升设备及其卷扬同步校准方法和系统
CN111762706B (zh) * 2020-06-11 2021-06-15 中联重科股份有限公司 双卷扬单吊钩式起升设备及其卷扬同步校准方法和系统

Also Published As

Publication number Publication date
EP0345105B1 (de) 1992-03-11
ES2029744T3 (es) 1992-09-01
DE68900959D1 (de) 1992-04-16
FR2631015A1 (fr) 1989-11-10
FR2631015B1 (fr) 1990-08-10

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