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EP3932847B1 - System for storing and pulling of a cable, in particular of a synthetic cable fitted on an offshore crane - Google Patents

System for storing and pulling of a cable, in particular of a synthetic cable fitted on an offshore crane Download PDF

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Publication number
EP3932847B1
EP3932847B1 EP21182780.3A EP21182780A EP3932847B1 EP 3932847 B1 EP3932847 B1 EP 3932847B1 EP 21182780 A EP21182780 A EP 21182780A EP 3932847 B1 EP3932847 B1 EP 3932847B1
Authority
EP
European Patent Office
Prior art keywords
storage
traction
cable
rotation
motorization
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
EP21182780.3A
Other languages
German (de)
French (fr)
Other versions
EP3932847A1 (en
Inventor
Karamoko Konate
Mickael VALET
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.)
Reel SAS
Original Assignee
Reel SAS
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 Reel SAS filed Critical Reel SAS
Publication of EP3932847A1 publication Critical patent/EP3932847A1/en
Application granted granted Critical
Publication of EP3932847B1 publication Critical patent/EP3932847B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B66D1/74—Capstans
    • B66D1/7405—Capstans having two or more drums providing tractive force
    • B66D1/741—Capstans having two or more drums providing tractive force and having rope storing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/52—Floating cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/54—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/84—Slewing gear
    • 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
    • B66D1/28—Other constructional details
    • B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
    • B66D1/38—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains by means of guides movable relative to drum or barrel
    • 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
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B66D1/74—Capstans
    • B66D1/76—Capstans having auxiliary drums or barrels for storing the ropes or cables

Definitions

  • the present invention relates to the technical field of offshore cranes. It relates in particular to systems for storing and pulling a cable, in particular a synthetic cable fitted to an offshore crane.
  • Some cranes consist, for example, of knuckle boom cranes.
  • Cranes are useful, but not limited to, for the laying or dismantling of transport infrastructure, repairs or on-board operations.
  • these cranes conventionally comprise a system for storing and pulling the cable which is intended to be secured to the load to be moved.
  • the present invention proposes a new structure for such a storage/traction system.
  • a system for storing and pulling a cable, in particular a synthetic cable fitted to an offshore crane.
  • the storage/traction system according to the invention thus has the advantage of being lighter, and less bulky, compared to current storage/traction systems (comprising a combination of slewing rings).
  • the present invention also relates to an offshore crane equipped with a storage/traction system according to the invention.
  • Offshore crane 1 (also called “crane 1"), generally illustrated in the figure 1 , is suitable for offshore applications.
  • Such a crane 1 is advantageously designed to equip a machine for offshore application (not shown - also called “offshore machine”). This crane 1 is thus adapted to be embarked on the “offshore” machine.
  • Machine encompasses, for example, machinery (in particular marine), in particular ships, pontoon cranes, barges and other offshore platforms.
  • the crane 1 is useful, without being limiting, for laying or dismantling transport infrastructure, repairs or operations on board.
  • the support structure 2 advantageously consists of a shaft or mast, intended to be rotated about a vertical longitudinal axis by means of maneuvering means (not shown, advantageously hydraulic or electric).
  • the jib 3 is advantageously equipped with pulleys 31 which are dimensioned, distributed and arranged in order to guide the cable C between the storage/traction system 4 and the load to be lifted.
  • the boom 3 here consists of an articulated boom which comprises two boom parts 32, 33 which are assembled in series from the support structure 2, namely a main boom 32 (also called “main boom” in English) and a terminal boom 33 (also called “jib" in English).
  • the storage/traction system 4 forms a module which equips the crane 1, advantageously carried by the support structure 2 (preferably opposite the jib 3).
  • the storage/traction system 4 is involved in the storage and traction of the cable C, advantageously chosen from synthetic cables.
  • the storage reel 61 here comprises a cylindrical barrel 611 terminated by two flanges 612.
  • the storage reel 61 and in particular the cylindrical barrel 6111, also comprises two end edges 615, 616 (or longitudinal edges), at the level of which the two flanges 612 are positioned.
  • the storage coil 61 is positioned so that its axis of rotation 61' is oriented vertically.
  • the two end edges 615, 616 of the storage coil 61 define here, respectively, an end edge upper 615 (pointing upwards) and a lower end border 616 (pointing downwards).
  • the aforementioned assembly means 63 consist of a single slewing ring (visible in particular on the figure 6 - designated by the same reference 63 for the sake of simplification).
  • This single slewing ring 63 is advantageously coaxial with the axis of rotation 61', and here it extends in a generally horizontal plane.
  • the fixed ring 631 here comprises an upper surface 6311 on which a ring 621 of the support 62 is secured by bolting; this ring 621 here terminates a tubular skirt 622 of the support 62 which extends from the frame 5.
  • the movable ring 632 here comprises a lower surface 6321 on which a plate 618 of the storage coil 61 is secured by bolting.
  • the plate 618 of the storage coil 61 and the slewing ring 63 extend here in the plane of one of the flanges 612 (here the upper flange 612), advantageously to optimize the mechanical strength.
  • the two rings 631, 632 advantageously cooperate via a bearing, preferably a ball bearing.
  • the movable ring 632 includes teeth 6321 (or toothing 6321), advantageously in the form of straight teeth (designated by the same reference 6321), to form a gear wheel.
  • the teeth 6321 are distributed here along an inner cylindrical surface 6322, parallel and coaxial with the axis of rotation 61' of the storage coil 61.
  • the movable ring 632 is thus intended to be maneuvered in rotation, by the motorization 65, along an axis of rotation 632' which is coaxial with the axis of rotation 61' of the storage coil 61.
  • the motorization 65 of the storage device 6 is for its part advantageously located facing the outer surface 6111 and/or the inner surface 6112 of the cylindrical barrel 611.
  • This motorization 65 is here positioned opposite the inner surface 6112 of the cylindrical barrel 611, in the cylindrical inner space E and between the two end edges 615, 616.
  • the size of the storage device 6 is thus defined by its storage coil 61.
  • the motorization 65 of the storage device 6 comprises at least two motors 651 (electric or hydraulic, preferably), preferably three motors, regularly distributed over the circumference (inner here) of the slewing ring 63.
  • motors 651 are advantageously synchronized, by means of suitable control means.
  • the motors 651 are thus distributed around the axis of rotation 61' of the storage coil 61, between this axis of rotation 61' and the inner surface 6112 of the cylindrical barrel 611.
  • the motors 651 are here secured with (and carried by) a support structure 66 which extends the frame 5.
  • This support structure 66 comprises in particular a central body 661 (advantageously cylindrical), also referred to as the "shaft”, which extends from the frame 5 (here vertically and downwards) and around which the motors are distributed. 651.
  • the shaft 661 is surrounded by the storage coil 61, if necessary by the inner surface 6112 of the cylindrical barrel 611.
  • the shaft 661 thus crosses a first end edge 615 (here upper) of the storage coil 61 and extends over part of the height of the cylindrical interior space E (advantageously without emerging at a second end border 616, here lower).
  • the motorization 65 (and in particular the motors 651) is thus installed in the annular space defined between the shaft 661 (inside) and the inner surface 6112 of the cylindrical barrel 611 (outside).
  • the motorization 65 of the storage device 6, and in particular each motor 651, comprises a motor pinion 652 which meshes with the teeth 6321 of the mobile ring 632.
  • the motor pinion 652 thus comprises teeth 6521, here also defining straight teeth (designated by the same reference 6521).
  • the motor pinions 652 and the movable ring 632 then have parallel axes of rotation 652', 632' ( figure 6 ).
  • the motor pinion 652 and the movable ring 632 then advantageously agree in the same plane, perpendicular to the axis of rotation 61', in this case in a horizontal plane.
  • the motor pinion 652 thus cooperates with the toothing 6321 of the mobile ring 632 so as to define together, in the present embodiment, a parallel and internal gear with a cylindrical wheel.
  • Each motor pinion 652 is thus located along the inner cylindrical surface 6322 of the movable ring 632, more preferably still in the annular space defined between the shaft 661 (inside) and the inner cylindrical surface 6322 of the ring mobile 632 (outside).
  • the storage coil 61 and the movable ring 632 have axes of rotation 61', 632' which are coaxial with each other.
  • Each motor pinion 652 has an axis of rotation 652' which is parallel, and offset laterally, with respect to the axis of rotation 61' of the storage coil 61 and with respect to the axis of rotation 632' of the movable ring 632.
  • the single orientation ring 63 is implanted/positioned at the level of a first end edge 615 of the storage coil 61; the support 62 is also located opposite this first end edge 615 of the storage coil 61.
  • the second end edge 616 of the storage coil 61 is then advantageously free, forming a through opening to facilitate access to the cylindrical interior space E.
  • the storage reel 61 is assembled with the support 62 via assembly means 63 defining a vertical axis of rotation 61'.
  • the motor pinions 652 and the movable ring 632 also have vertical axes of rotation 652', 632' ( figure 6 ).
  • the single slewing ring 63 and the support 62 are then advantageously installed at the level of the upper end edge 615 of the storage coil 61.
  • the lower end edge 616 of the storage coil 61 is advantageously free.
  • the motor pinion 652 is then advantageously located at the level of this same upper end edge 615 of the storage coil 61.
  • the motor 651, associated, is underlying this motor pinion 652.
  • the lower end edge 616 (free) advantageously defines a through opening, oriented downwards, to facilitate access to the cylindrical interior space E.
  • the traction device 7, also called “winch”, is adapted to exert traction on the cable C.
  • Such a traction device 7 is advantageously chosen from known traction devices and winches.
  • This traction device 7 advantageously consists of a capstan winch. Generally, it comprises at least one drum 71, here two in number, associated with a motorization 72 (also called motor means).
  • the traction device 7 can be of the type described in the document EP2178784 .
  • Such a winch 7 consists of two motorized drums 71, positioned opposite one another.
  • Each drum 71 each comprises an active cylindrical peripheral surface provided with several annular grooves juxtaposed and coaxial with each other.
  • the cable C is intended to be wound around the two drums 71 according to an arrangement of the helical type: the strands of the cable C pass successively from one of the annular grooves of one drum 71 to one of the annular grooves of the other drum 71.
  • the axis of rotation 71' of the two motorized drums 71 is oriented perpendicularly (here horizontally), or at least approximately perpendicularly, with respect to the axis of rotation 61' of the storage reel 61 (here vertically).
  • the motorized drums 71 are each formed of several pulleys, each rotatable around a common central axis 71', cooperating with their own dedicated motor means 72.
  • the winding device 8 is interposed between the storage device 6 and the traction device 7, to guide the cable C during its winding / unwinding with respect to the storage reel 61.
  • Such a spooling device 8 is advantageously chosen from known spooling devices.
  • the frame 5 advantageously a mechanically welded metal structure, comprises a base 51 which is here in the form of a horizontal plate or platform, in this case parallelepipedic.
  • the combination of devices 6, 7, 8 is installed in a particular way on this base 51 in order to optimize the size of this storage device 6.
  • the storage device 6 is hooked under the base 51.
  • the supporting structure 66 of the motorization 65 (in particular the shaft 661) is also suspended under the base 51.
  • the base 51 further comprises lateral securing means 516 for its attachment to the offshore crane 1, in particular with its support structure 2.
  • the lateral securing means 516 consist for example of a mechanically welded structure 516 which is installed at the level of the rear surface 514.
  • the traction device 7 is implemented to exert a traction on the cable C with a view to its winding / unwinding with respect to the storage device 6 and with respect to the arrow 3.
  • the storage coil 61 is operated in rotation by the associated motorization 65.
  • the single slewing ring 63 thus defines the axis of rotation 61' of the storage coil 61, here vertical.
  • the winding device 8 guides the cable C all or along its winding / unwinding relative to the storage device 6.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Jib Cranes (AREA)

Description

Domaine technique de l'inventionTechnical field of the invention

La présente invention concerne le domaine technique des grues offshore. Elle concerne en particulier les systèmes pour le stockage et la traction d'un câble, en particulier d'un câble synthétique équipant une grue offshore.The present invention relates to the technical field of offshore cranes. It relates in particular to systems for storing and pulling a cable, in particular a synthetic cable fitted to an offshore crane.

Etat de la techniqueState of the art

Dans le domaine offshore, il est courant que les engins mis en oeuvre soient équipés d'au moins une grue. Certaines grues consistent par exemple en des grues à flèche articulée (dites encore « knuckle boom crane » en anglais).In the offshore field, it is common for the machines used to be equipped with at least one crane. Some cranes consist, for example, of knuckle boom cranes.

Les grues sont utiles, sans être limitatif, pour la pose ou le démantèlement des infrastructures de transport, les réparations ou les opérations à bord.Cranes are useful, but not limited to, for the laying or dismantling of transport infrastructure, repairs or on-board operations.

Pour réaliser les opérations, ces grues comportent classiquement un système pour le stockage et la traction du câble qui est destiné à être solidarisé avec la charge à déplacer.To carry out the operations, these cranes conventionally comprise a system for storing and pulling the cable which is intended to be secured to the load to be moved.

Un tel système de stockage/traction comprend pour cela un châssis qui porte une combinaison de dispositifs coopérant avec ledit câble :

  1. (i) un dispositif de stockage comportant :
    • une bobine de stockage sur laquelle ledit câble est destiné à être enroulé,
    • un support, portant ladite bobine de stockage par l'intermédiaire de moyens d'assemblage définissant un axe de rotation, et
    • une motorisation, adaptée à manoeuvrer ladite bobine de stockage en rotation autour dudit axe de rotation,
  2. (ii) un dispositif de traction, adapté à exercer une traction sur ledit câble, lequel dispositif de traction comporte au moins un tambour associé à une motorisation, et
  3. (iii) un dispositif de trancannage, interposé entre ledit dispositif de stockage et ledit dispositif de traction, pour guider le câble lors de son enroulement / déroulement par rapport à ladite bobine de stockage.
Such a storage/traction system therefore comprises a frame which carries a combination of devices cooperating with said cable:
  1. (i) a storage device comprising:
    • a storage reel on which said cable is intended to be wound,
    • a support, carrying said storage reel via assembly means defining an axis of rotation, and
    • a motorization, suitable for maneuvering said storage reel in rotation around said axis of rotation,
  2. (ii) a traction device, adapted to exert traction on said cable, which traction device comprises at least one drum associated with a motorization, and
  3. (iii) a winding device, interposed between said storage device and said traction device, to guide the cable during its winding / unwinding with respect to said storage reel.

Mais la plupart des systèmes de stockage / traction actuels sont relativement lourds et encombrants. Or ces paramètres sont parmi les points essentiels dans la conception d'un engin offshore.But most of today's storage/traction systems are relatively heavy and bulky. However, these parameters are among the essential points in the design of an offshore machine.

Le US 2018/346296 A1 divulgue un système selon le préambule de la revendication 1.THE US 2018/346296 A1 discloses a system according to the preamble of claim 1.

Il existe par conséquent un besoin de solutions techniques pour optimiser la structure de ces systèmes de stockage / traction (notamment sur le plan du poids et de l'encombrement).There is therefore a need for technical solutions to optimize the structure of these storage/traction systems (particularly in terms of weight and size).

Présentation de l'inventionPresentation of the invention

Afin de remédier à l'inconvénient précité de l'état de la technique, la présente invention propose une nouvelle structure pour un tel système de stockage/traction.In order to remedy the aforementioned drawback of the state of the art, the present invention proposes a new structure for such a storage/traction system.

Plus particulièrement, on propose selon l'invention un système pour le stockage et la traction d'un câble, en particulier d'un câble synthétique équipant une grue offshore.More particularly, according to the invention, a system is proposed for storing and pulling a cable, in particular a synthetic cable fitted to an offshore crane.

Le système de stockage/traction comprend un châssis qui porte une combinaison de dispositifs coopérant avec ledit câble :

  1. (i) un dispositif de stockage comportant :
    • une bobine de stockage sur laquelle ledit câble est destiné à être enroulé,
    • un support, portant ladite bobine de stockage par l'intermédiaire de moyens d'assemblage définissant un axe de rotation, et
    • une motorisation, adaptée à manoeuvrer ladite bobine de stockage en rotation autour dudit axe de rotation,
  2. (ii) un dispositif de traction, adapté à exercer une traction sur ledit câble, lequel dispositif de traction comporte au moins un tambour associé à une motorisation, et
  3. (iii) un dispositif de trancannage, interposé entre ledit dispositif de stockage et ledit dispositif de traction, pour guider le câble lors de son enroulement / déroulement par rapport à ladite bobine de stockage.
The storage/traction system comprises a frame which carries a combination of devices cooperating with said cable:
  1. (i) a storage device comprising:
    • a storage reel on which said cable is intended to be wound,
    • a support, carrying said storage reel via assembly means defining an axis of rotation, and
    • a motorization, suitable for maneuvering said storage reel in rotation around said axis of rotation,
  2. (ii) a traction device, adapted to exert traction on said cable, which traction device comprises at least one drum associated with a motorization, and
  3. (iii) a winding device, interposed between said storage device and said traction device, to guide the cable during its winding / unwinding with respect to said storage reel.

Et, selon l'invention, entre ladite bobine de stockage et ledit support, lesdits moyens d'assemblage consistent en une unique couronne d'orientation comprenant deux bagues qui sont libres en rotation l'une par rapport à l'autre :

  • une bague fixe qui est solidarisée avec ledit support, et
  • une bague mobile qui est, d'une part, solidarisée avec ladite bobine de stockage et, d'autre part, manoeuvrée en rotation par ladite motorisation.
And, according to the invention, between said storage coil and said support, said assembly means consist of a single slewing ring comprising two rings which are free to rotate relative to each other:
  • a fixed ring which is secured to said support, and
  • a movable ring which is, on the one hand, secured to said storage coil and, on the other hand, rotated by said motorization.

Le système de stockage / traction selon l'invention a ainsi l'intérêt d'être plus léger, et moins encombrant, par rapport aux systèmes de stockage / traction actuels (comportant une combinaison de couronnes d'orientation).The storage/traction system according to the invention thus has the advantage of being lighter, and less bulky, compared to current storage/traction systems (comprising a combination of slewing rings).

D'autres caractéristiques non limitatives et avantageuses du produit conforme à l'invention, prises individuellement ou selon toutes les combinaisons techniquement possibles, sont les suivantes :

  • la bobine de stockage comprend un fût cylindrique (terminée par deux flasques), lequel fût cylindrique comprend deux surfaces cylindriques (une surface extérieure, autour de laquelle le câble est destiné à être enroulé et une surface intérieure, opposée), et la motorisation dudit dispositif de stockage est implantée en regard de ladite surface extérieure et/ou de ladite surface intérieure ;
  • la motorisation du dispositif de stockage comprend au moins deux moteurs, de préférence trois moteurs, régulièrement répartis sur la circonférence de ladite couronne d'orientation ;
  • la bague mobile comporte une denture et en ce que la motorisation dudit dispositif de stockage comporte un pignon moteur engrenant avec ladite denture ;
  • la bobine de stockage comporte deux bordures d'extrémité, et la couronne d'orientation est positionnée au niveau de l'une desdites bordures d'extrémité de la bobine de stockage ;
  • ladite bobine de stockage est assemblée avec le support par l'intermédiaire desdits moyens d'assemblage définissant un axe de rotation vertical ; de préférence, la bobine de stockage comporte deux bordures d'extrémité (une bordure d'extrémité supérieure et une bordure d'extrémité inférieure), et la couronne d'orientation est localisée au niveau de ladite bordure d'extrémité supérieure ; de préférence encore, ledit châssis comprend une embase sur lequel lesdits dispositifs sont implantés, avec ledit dispositif de stockage est sous-jacent de ladite embase, ledit dispositif de traction est sus-jacent de ladite embase, et ledit dispositif de trancannage est implanté latéralement par rapport à ladite embase, et ladite embase comporte encore des moyens de solidarisation latérale avec ladite grue offshore ;
  • la motorisation est portée par un arbre qui est solidarisé avec le châssis et qui est agencé coaxialement par rapport audit axe de rotation, lequel arbre est entouré par ladite bobine de stockage, le cas échéant par la surface intérieure du fût cylindrique ;
  • ledit dispositif de traction consiste en un treuil cabestan, qui se compose de deux tambours motorisés, positionnés en regard l'un de l'autre et comportant chacun une surface périphérique cylindrique munie de plusieurs gorges annulaires juxtaposées et coaxiales les unes par rapport aux autres, ledit câble étant destiné à être enroulé autour desdits deux tambours selon un agencement de type hélicoïdal, les brins dudit câble passant successivement depuis l'une des gorges annulaires d'un tambour jusqu'à l'une des gorges annulaires de l'autre tambour, et l'axe de rotation desdits deux tambours motorisés est orienté perpendiculairement ou au moins approximativement perpendiculairement par rapport à l'axe de rotation de la bobine de stockage.
Other non-limiting and advantageous characteristics of the product in accordance with the invention, taken individually or according to all the technically possible combinations, are the following:
  • the storage reel comprises a cylindrical barrel (terminated by two flanges), which cylindrical barrel comprises two cylindrical surfaces (an outer surface, around which the cable is intended to be wound and an inner surface, opposite), and the motorization of said device storage is located facing said outer surface and / or said inner surface;
  • the motorization of the storage device comprises at least two motors, preferably three motors, regularly distributed over the circumference of said slewing ring;
  • the movable ring comprises a set of teeth and in that the motorization of said storage device comprises a drive pinion meshing with said set of teeth;
  • the storage coil has two end edges, and the slewing ring is positioned at one of said end edges of the storage coil;
  • said storage reel is assembled with the support via said assembly means defining a vertical axis of rotation; preferably, the storage coil has two end edges (an upper end edge and a lower end edge), and the slewing ring is located at said upper end edge; more preferably, said chassis comprises a base on which said devices are installed, with said storage device underlying said base, said traction device underlying said base, and said spooling device is installed laterally by relative to said base, and said base further comprises means for lateral attachment to said offshore crane;
  • the motorization is carried by a shaft which is secured to the frame and which is arranged coaxially with respect to said axis of rotation, which shaft is surrounded by said storage coil, where appropriate by the inner surface of the cylindrical barrel;
  • said traction device consists of a capstan winch, which consists of two motorized drums, positioned facing each other and each comprising a cylindrical peripheral surface provided with several annular grooves juxtaposed and coaxial with each other, said cable being intended to be wound around said two drums according to an arrangement of the helical type, the strands of said cable passing successively from one of the annular grooves of a drum to the one of the annular grooves of the other drum, and the axis of rotation of said two motorized drums is oriented perpendicularly or at least approximately perpendicularly with respect to the axis of rotation of the storage reel.

La présente invention concerne encore une grue offshore équipé d'un système de stockage / traction selon l'invention.The present invention also relates to an offshore crane equipped with a storage/traction system according to the invention.

Bien entendu, les différentes caractéristiques, variantes et formes de réalisation de l'invention peuvent être associées les unes avec les autres selon diverses combinaisons dans la mesure où elles ne sont pas incompatibles ou exclusives les unes des autres.Of course, the different characteristics, variants and embodiments of the invention can be associated with each other in various combinations insofar as they are not incompatible or exclusive of each other.

Description détaillée de l'inventionDetailed description of the invention

De plus, diverses autres caractéristiques de l'invention ressortent de la description annexée effectuée en référence aux dessins qui illustrent des formes, non limitatives, de réalisation de l'invention et où :

  • [Fig. 1] est une vue générale, et en perspective, d'une grue offshore équipée du système de stockage / traction selon l'invention ;
  • [Fig. 2] est une vue générale, et de côté, du système de stockage / traction selon la figure 1 ;
  • [Fig. 3] est une vue générale, et en perspective (vue par-dessous), du système de stockage / traction selon la figure 1 ;
  • [Fig. 4] représente le dispositif de stockage équipant le système de stockage / traction conforme à la figure 1, selon un plan de coupe vertical passant par l'axe de rotation de la bobine de stockage ;
  • [Fig. 5] est une vue, en perspective, du dispositif de stockage en coupe selon la figure 4 ;
  • [Fig. 6] est une vue partielle et agrandie de la figure 5, pour montrer plus en détails la structure des moyens d'assemblage implantés entre la bobine de stockage et le support.
In addition, various other characteristics of the invention emerge from the appended description made with reference to the drawings which illustrate non-limiting forms of embodiment of the invention and where:
  • [ Fig. 1 ] is a general view, and in perspective, of an offshore crane equipped with the storage/traction system according to the invention;
  • [ Fig. 2 ] is a general view, and from the side, of the storage / traction system according to the figure 1 ;
  • [ Fig. 3 ] is a general view, and in perspective (view from below), of the storage / traction system according to the figure 1 ;
  • [ Fig. 4 ] represents the storage device fitted to the storage / traction system conforming to the figure 1 , along a vertical section plane passing through the axis of rotation of the storage reel;
  • [ Fig. 5 ] is a view, in perspective, of the storage device in section according to the figure 4 ;
  • [ Fig. 6 ] is a partial and enlarged view of the figure 5 , to show in more detail the structure of the assembly means located between the storage coil and the support.

Il est à noter que, sur ces figures, les éléments structurels et/ou fonctionnels communs aux différentes variantes peuvent présenter les mêmes références.It should be noted that, in these figures, the structural and/or functional elements common to the different variants may have the same references.

La grue offshore 1 (dite encore « grue 1 »), illustrée de manière générale sur la figure 1, est adaptée aux applications offshores.Offshore crane 1 (also called "crane 1"), generally illustrated in the figure 1 , is suitable for offshore applications.

Une telle grue 1 est avantageusement conçue pour équiper un engin pour application offshore (non représenté - dit encore « engin offshore »). Cette grue 1 est ainsi adaptée à être embarquée sur l'engin « offshore ».Such a crane 1 is advantageously designed to equip a machine for offshore application (not shown - also called "offshore machine"). This crane 1 is thus adapted to be embarked on the “offshore” machine.

Par « engin », on englobe par exemple les engins (notamment marins), notamment les navires, les pontons grues, les barges et autres plates-formes offshore.“Machine” encompasses, for example, machinery (in particular marine), in particular ships, pontoon cranes, barges and other offshore platforms.

La grue 1 est utile, sans être limitatif, pour la pose ou le démantèlement des infrastructures de transport, les réparations ou les opérations à bord.The crane 1 is useful, without being limiting, for laying or dismantling transport infrastructure, repairs or operations on board.

La grue 1 comprend trois principaux éléments :

  • une structure support 2, formant l'interface de la grue 1 avec l'engin,
  • une flèche 3, portée par la structure support 2, et
  • un système de stockage/traction 4, pour la manoeuvre d'un câble C (représenté partiellement sur les figures 1 à 3) destiné à suspendre / recevoir une charge à déplacer (non représentée).
Crane 1 comprises three main elements:
  • a support structure 2, forming the interface of the crane 1 with the machine,
  • an arrow 3, carried by the support structure 2, and
  • a storage/traction system 4, for maneuvering a cable C (partially represented on the figures 1 to 3 ) intended to suspend / receive a load to be moved (not shown).

La structure support 2 consiste avantageusement en un fût ou mat, destiné à être mis en rotation autour d'un axe longitudinal vertical par le biais de moyens de manoeuvre (non représentés, avantageusement hydraulique ou électrique).The support structure 2 advantageously consists of a shaft or mast, intended to be rotated about a vertical longitudinal axis by means of maneuvering means (not shown, advantageously hydraulic or electric).

La flèche 3 est avantageusement équipée de poulies 31 qui sont dimensionnées, réparties et agencées à façon, pour guider le câble C entre le système de stockage/traction 4 et la charge à soulever.The jib 3 is advantageously equipped with pulleys 31 which are dimensioned, distributed and arranged in order to guide the cable C between the storage/traction system 4 and the load to be lifted.

La flèche 3 consiste ici en une flèche articulée qui comprend deux parties de flèche 32, 33 qui sont assemblées en série depuis la structure support 2, à savoir une flèche principale 32 (dite encore « main boom » en anglais) et une flèche terminale 33 (appelée encore « jib » en anglais).The boom 3 here consists of an articulated boom which comprises two boom parts 32, 33 which are assembled in series from the support structure 2, namely a main boom 32 (also called "main boom" in English) and a terminal boom 33 (also called "jib" in English).

Le système de stockage/traction 4 forme un module qui équipe la grue 1, avantageusement porté par la structure support 2 (de préférence à l'opposé de la flèche 3).The storage/traction system 4 forms a module which equips the crane 1, advantageously carried by the support structure 2 (preferably opposite the jib 3).

Le système de stockage/traction 4 intervient dans le stockage et la traction du câble Ç, avantageusement choisi parmi les câbles synthétiques.The storage/traction system 4 is involved in the storage and traction of the cable C, advantageously chosen from synthetic cables.

Le système de stockage/traction 4 comprend un châssis 5 qui porte une combinaison de dispositifs 6, 7, 8 coopérant avec le câble C précité (pour son stockage et sa traction), à savoir :

  • un dispositif de stockage 6, prévu pour le stockage du mou du câble C,
  • un dispositif de traction 7, adapté à exercer une traction sur le câble C en vue de son enroulement / déroulement par rapport au dispositif de stockage 6, et
  • un dispositif de trancannage 8, interposé entre le dispositif de stockage 6 et le dispositif de traction 7, pour guider le câble C lors de son enroulement / déroulement par rapport au dispositif de stockage 6.
The storage/traction system 4 comprises a frame 5 which carries a combination of devices 6, 7, 8 cooperating with the aforementioned cable C (for its storage and its traction), namely:
  • a storage device 6, provided for storing the slack of the cable C ,
  • a traction device 7, adapted to exert traction on the cable C with a view to its winding/unwinding relative to the storage device 6, and
  • a winding device 8, interposed between the storage device 6 and the traction device 7, to guide the cable C during its winding / unwinding with respect to the storage device 6.

Dispositif de stockageStorage device

Tel que décrit ci-dessous en relation avec les figures 4 à 6, le dispositif de stockage 6 comporte :

  • une bobine de stockage 61 sur laquelle le câble C est destiné à être enroulé,
  • un support 62, portant la bobine de stockage 61 par l'intermédiaire de moyens d'assemblage 63 (visibles en particulier sur la figure 6) définissant un axe de rotation 61' pour la bobine de stockage 61, et
  • une motorisation 65, adaptée à manoeuvrer la bobine de stockage 61 en rotation autour de son axe de rotation 61'.
As described below in connection with the figures 4 to 6 , the storage device 6 comprises:
  • a storage reel 61 on which the cable C is intended to be wound,
  • a support 62, carrying the storage reel 61 via assembly means 63 (visible in particular on the figure 6 ) defining an axis of rotation 61' for the storage coil 61, and
  • a motorization 65, suitable for maneuvering the storage reel 61 in rotation around its axis of rotation 61'.

La bobine de stockage 61 comprend ici un fût cylindrique 611 terminée par deux flasques 612.The storage reel 61 here comprises a cylindrical barrel 611 terminated by two flanges 612.

Le fût cylindrique 611, tubulaire, comportent deux surfaces cylindriques 6111, 6112, opposées, à savoir :

  • une surface extérieure 6111, autour de laquelle le câble C est destiné à être enroulé, et
  • une surface intérieure 6112, opposée, délimitant un espace intérieur cylindrique E.
The cylindrical barrel 611, tubular, has two opposite cylindrical surfaces 6111, 6112, namely:
  • an outer surface 6111, around which the cable C is intended to be wound, and
  • an inner surface 6112, opposite, delimiting a cylindrical inner space E.

La bobine de stockage 61, et en particulier le fût cylindrique 6111, comporte également deux bordures d'extrémité 615, 616 (ou bordures longitudinales), au niveau desquels sont positionnés les deux flasques 612.The storage reel 61, and in particular the cylindrical barrel 6111, also comprises two end edges 615, 616 (or longitudinal edges), at the level of which the two flanges 612 are positioned.

En l'espèce, la bobine de stockage 61 est positionnée de sorte que son axe de rotation 61' soit orienté verticalement. Et les deux bordures d'extrémité 615, 616 de la bobine de stockage 61 définissent ici, respectivement, une bordure d'extrémité supérieure 615 (orientée vers le haut) et une bordure d'extrémité inférieure 616 (orientée vers le bas).In this case, the storage coil 61 is positioned so that its axis of rotation 61' is oriented vertically. And the two end edges 615, 616 of the storage coil 61 define here, respectively, an end edge upper 615 (pointing upwards) and a lower end border 616 (pointing downwards).

Selon l'invention, entre la bobine de stockage 61 et le support 62, les moyens d'assemblage 63 précités consistent en une unique couronne d'orientation (visible en particulier sur la figure 6 - désignée par le même repère 63 dans un souci de simplification).According to the invention, between the storage coil 61 and the support 62, the aforementioned assembly means 63 consist of a single slewing ring (visible in particular on the figure 6 - designated by the same reference 63 for the sake of simplification).

Cette unique couronne d'orientation 63 est avantageusement coaxiale par rapport à l'axe de rotation 61', et elle s'étend ici dans un plan général horizontal.This single slewing ring 63 is advantageously coaxial with the axis of rotation 61', and here it extends in a generally horizontal plane.

En l'espèce, l'unique couronne d'orientation 63 comprend deux bagues 631, 632 qui sont libres en rotation l'une par rapport à l'autre (coaxialement par rapport à l'axe de rotation 61' précité), à savoir :

  • une bague fixe 631 (ici extérieure), qui est solidarisée (de préférence par boulonnage) avec le support 62, et
  • une bague mobile 632 (ici intérieure) qui est, d'une part, solidarisée (de préférence par boulonnage) avec la bobine de stockage 61 et, d'autre part, manoeuvrée en rotation par la motorisation 65.
In this case, the single slewing ring 63 comprises two rings 631, 632 which are free to rotate relative to each other (coaxially relative to the axis of rotation 61' mentioned above), namely :
  • a fixed ring 631 (external here), which is secured (preferably by bolting) to the support 62, and
  • a movable ring 632 (inner here) which is, on the one hand, secured (preferably by bolting) with the storage coil 61 and, on the other hand, driven in rotation by the motorization 65.

En particulier, tel que décrit ci-dessous en relation avec la figure 6, la bague fixe 631 comporte ici une surface supérieure 6311 sur laquelle une bague 621 du support 62 est solidarisée par boulonnage ; cette bague 621 termine ici une jupe tubulaire 622 du support 62 qui s'étend depuis le châssis 5. Et la bague mobile 632 comporte ici une surface inférieure 6321 sur laquelle une platine 618 de la bobine de stockage 61 est solidarisée par boulonnage.In particular, as described below in connection with the figure 6 , the fixed ring 631 here comprises an upper surface 6311 on which a ring 621 of the support 62 is secured by bolting; this ring 621 here terminates a tubular skirt 622 of the support 62 which extends from the frame 5. And the movable ring 632 here comprises a lower surface 6321 on which a plate 618 of the storage coil 61 is secured by bolting.

La platine 618 de la bobine de stockage 61 et la couronne d'orientation 63 s'étendent ici dans le plan de l'une des flasques 612 (ici la flasque 612 supérieure), avantageusement pour optimiser la résistance mécanique.The plate 618 of the storage coil 61 and the slewing ring 63 extend here in the plane of one of the flanges 612 (here the upper flange 612), advantageously to optimize the mechanical strength.

Les deux bagues 631, 632 coopèrent avantageusement par le biais d'un roulement, de préférence un roulement à billes.The two rings 631, 632 advantageously cooperate via a bearing, preferably a ball bearing.

En outre, la bague mobile 632 comporte des dents 6321 (ou denture 6321), avantageusement sous la forme d'une denture droite (désignée par le même repère 6321), pour former une roue d'engrenage.In addition, the movable ring 632 includes teeth 6321 (or toothing 6321), advantageously in the form of straight teeth (designated by the same reference 6321), to form a gear wheel.

Les dents 6321 sont réparties ici le long d'une surface cylindrique intérieure 6322, parallèle et coaxiale à l'axe de rotation 61' de la bobine de stockage 61.The teeth 6321 are distributed here along an inner cylindrical surface 6322, parallel and coaxial with the axis of rotation 61' of the storage coil 61.

La bague mobile 632 est ainsi destinée à être manoeuvrée en rotation, par la motorisation 65, selon un axe de rotation 632' qui est coaxial à l'axe de rotation 61' de la bobine de stockage 61.The movable ring 632 is thus intended to be maneuvered in rotation, by the motorization 65, along an axis of rotation 632' which is coaxial with the axis of rotation 61' of the storage coil 61.

La motorisation 65 du dispositif de stockage 6 est quant à elle avantageusement implantée en regard de la surface extérieure 6111 et/ou de la surface intérieure 6112 du fût cylindrique 611.The motorization 65 of the storage device 6 is for its part advantageously located facing the outer surface 6111 and/or the inner surface 6112 of the cylindrical barrel 611.

Cette motorisation 65 est ici positionnée en regard de la surface intérieure 6112 du fût cylindrique 611, dans l'espace intérieur cylindrique E et entre les deux bordures d'extrémité 615, 616. L'encombrement du dispositif de stockage 6 est ainsi défini par sa bobine de stockage 61.This motorization 65 is here positioned opposite the inner surface 6112 of the cylindrical barrel 611, in the cylindrical inner space E and between the two end edges 615, 616. The size of the storage device 6 is thus defined by its storage coil 61.

En l'espèce, la motorisation 65 du dispositif de stockage 6 comprend au moins deux moteurs 651 (électrique ou hydraulique, de préférence), de préférence trois moteurs, régulièrement répartis sur la circonférence (ici intérieure) de la couronne d'orientation 63.In this case, the motorization 65 of the storage device 6 comprises at least two motors 651 (electric or hydraulic, preferably), preferably three motors, regularly distributed over the circumference (inner here) of the slewing ring 63.

Ces moteurs 651 sont avantageusement synchronisés, par le biais de moyens de pilotage adaptés.These motors 651 are advantageously synchronized, by means of suitable control means.

Les moteurs 651 sont ainsi répartis autour de l'axe de rotation 61' de la bobine de stockage 61, entre cet axe de rotation 61' et la surface intérieure 6112 du fût cylindrique 611.The motors 651 are thus distributed around the axis of rotation 61' of the storage coil 61, between this axis of rotation 61' and the inner surface 6112 of the cylindrical barrel 611.

Pour ce faire, les moteurs 651 sont ici solidarisés avec (et portés par) une structure porteuse 66 qui prolonge le châssis 5.To do this, the motors 651 are here secured with (and carried by) a support structure 66 which extends the frame 5.

Cette structure porteuse 66 comprend en particulier un corps central 661 (avantageusement cylindrique), désigné encore sous le nom d'« arbre », qui s'étend depuis le châssis 5 (ici verticalement et vers le bas) et autour duquel sont répartis les moteurs 651.This support structure 66 comprises in particular a central body 661 (advantageously cylindrical), also referred to as the "shaft", which extends from the frame 5 (here vertically and downwards) and around which the motors are distributed. 651.

L'arbre 661 est entouré par la bobine de stockage 61, le cas échéant par la surface intérieure 6112 du fût cylindrique 611.The shaft 661 is surrounded by the storage coil 61, if necessary by the inner surface 6112 of the cylindrical barrel 611.

L'arbre 661 traverse ainsi une première bordure d'extrémité 615 (ici supérieure) de la bobine de stockage 61 et s'étend sur une partie de la hauteur de l'espace intérieur cylindrique E (avantageusement sans déboucher au niveau d'une seconde bordure d'extrémité 616, ici inférieure).The shaft 661 thus crosses a first end edge 615 (here upper) of the storage coil 61 and extends over part of the height of the cylindrical interior space E (advantageously without emerging at a second end border 616, here lower).

La motorisation 65 (et en particulier les moteurs 651) est ainsi implantée dans l'espace annulaire défini entre l'arbre 661 (à l'intérieur) et la surface intérieure 6112 du fût cylindrique 611 (à l'extérieur).The motorization 65 (and in particular the motors 651) is thus installed in the annular space defined between the shaft 661 (inside) and the inner surface 6112 of the cylindrical barrel 611 (outside).

Pour la manoeuvre de la bague mobile 632, la motorisation 65 du dispositif de stockage 6, et en particulier chaque moteur 651, comporte un pignon moteur 652 qui engrène avec la denture 6321 de la bague mobile 632.For the operation of the mobile ring 632, the motorization 65 of the storage device 6, and in particular each motor 651, comprises a motor pinion 652 which meshes with the teeth 6321 of the mobile ring 632.

Le pignon moteur 652 comporte ainsi des dents 6521, définissant ici également une denture droite (désignée par le même repère 6521).The motor pinion 652 thus comprises teeth 6521, here also defining straight teeth (designated by the same reference 6521).

Les pignons moteurs 652 et la bague mobile 632 présentent alors des axes de rotation 652', 632' parallèles (figure 6).The motor pinions 652 and the movable ring 632 then have parallel axes of rotation 652', 632' ( figure 6 ).

Le pignon moteur 652 et la bague mobile 632 s'entendent alors avantageusement dans un même plan, perpendiculaire à l'axe de rotation 61', en l'espèce dans un plan horizontal.The motor pinion 652 and the movable ring 632 then advantageously agree in the same plane, perpendicular to the axis of rotation 61', in this case in a horizontal plane.

Le pignon moteur 652 coopère ainsi avec la denture 6321 de la bague mobile 632 de manière à définir ensemble, dans le présent mode de réalisation, un engrenage parallèle et intérieur à roue cylindrique.The motor pinion 652 thus cooperates with the toothing 6321 of the mobile ring 632 so as to define together, in the present embodiment, a parallel and internal gear with a cylindrical wheel.

Chaque pignon moteur 652 est ainsi implanté le long de la surface cylindrique intérieure 6322 de la bague mobile 632, de préférence encore dans l'espace annulaire défini entre l'arbre 661 (à l'intérieur) et la surface cylindrique intérieure 6322 de la bague mobile 632 (à l'extérieur).Each motor pinion 652 is thus located along the inner cylindrical surface 6322 of the movable ring 632, more preferably still in the annular space defined between the shaft 661 (inside) and the inner cylindrical surface 6322 of the ring mobile 632 (outside).

En particulier, la bobine de stockage 61 et la bague mobile 632 possèdent des axes de rotation 61', 632' qui sont coaxiaux l'un par rapport à l'autre. Chaque pignon moteur 652 possède un axe de rotation 652' qui est parallèle, et déporté latéralement, par rapport à l'axe de rotation 61' de la bobine de stockage 61 et par rapport à l'axe de rotation 632' de la bague mobile 632.In particular, the storage coil 61 and the movable ring 632 have axes of rotation 61', 632' which are coaxial with each other. Each motor pinion 652 has an axis of rotation 652' which is parallel, and offset laterally, with respect to the axis of rotation 61' of the storage coil 61 and with respect to the axis of rotation 632' of the movable ring 632.

Dans le présent mode de réalisation, l'unique couronne d'orientation 63 est implantée / positionnée au niveau d'une première bordure d'extrémité 615 de la bobine de stockage 61 ; le support 62 est également implanté en regard de cette première bordure d'extrémité 615 de la bobine de stockage 61.In the present embodiment, the single orientation ring 63 is implanted/positioned at the level of a first end edge 615 of the storage coil 61; the support 62 is also located opposite this first end edge 615 of the storage coil 61.

Parallèlement, la seconde bordure d'extrémité 616 de la bobine de stockage 61 est alors avantageusement libre, formant une ouverture débouchante pour faciliter l'accès à l'espace intérieur cylindrique E.At the same time, the second end edge 616 of the storage coil 61 is then advantageously free, forming a through opening to facilitate access to the cylindrical interior space E.

En l'espèce, la bobine de stockage 61 est assemblée avec le support 62 par l'intermédiaire des moyens d'assemblage 63 définissant un axe de rotation 61' vertical.In this case, the storage reel 61 is assembled with the support 62 via assembly means 63 defining a vertical axis of rotation 61'.

Tenant compte de cet axe de rotation 61' vertical, les pignons moteurs 652 et la bague mobile 632 présentent également des axes de rotation 652', 632' verticaux (figure 6).Taking this vertical axis of rotation 61' into account, the motor pinions 652 and the movable ring 632 also have vertical axes of rotation 652', 632' ( figure 6 ).

L'unique couronne d'orientation 63 et le support 62 sont alors avantageusement implantés au niveau de la bordure d'extrémité supérieure 615 de la bobine de stockage 61. La bordure d'extrémité inférieure 616 de la bobine de stockage 61 est avantageusement libre.The single slewing ring 63 and the support 62 are then advantageously installed at the level of the upper end edge 615 of the storage coil 61. The lower end edge 616 of the storage coil 61 is advantageously free.

Le pignon moteur 652 se situe alors avantageusement au niveau de cette même bordure d'extrémité supérieure 615 de la bobine de stockage 61. Le moteur 651, associée, est sous-jacent de ce pignon moteur 652.The motor pinion 652 is then advantageously located at the level of this same upper end edge 615 of the storage coil 61. The motor 651, associated, is underlying this motor pinion 652.

La bordure d'extrémité inférieure 616 (libre) définit avantageusement une ouverture débouchante, orientée vers le bas, pour faciliter l'accès à l'espace intérieur cylindrique E.The lower end edge 616 (free) advantageously defines a through opening, oriented downwards, to facilitate access to the cylindrical interior space E.

Dispositif de tractiontraction device

Le dispositif de traction 7, dit encore « treuil », est adapté à exercer une traction sur le câble C.The traction device 7, also called "winch", is adapted to exert traction on the cable C.

Un tel dispositif de traction 7 est avantageusement choisi parmi les dispositifs de traction et treuils connus.Such a traction device 7 is advantageously chosen from known traction devices and winches.

Ce dispositif de traction 7 consiste avantageusement en un treuil cabestan. De manière générale, il comporte au moins un tambour 71, ici au nombre de deux, associé à une motorisation 72 (dits encore moyens moteurs).This traction device 7 advantageously consists of a capstan winch. Generally, it comprises at least one drum 71, here two in number, associated with a motorization 72 (also called motor means).

Par exemple et sans être limitatif, le dispositif de traction 7 peut être du type décrit dans le document EP2178784 .For example and without being limiting, the traction device 7 can be of the type described in the document EP2178784 .

Un tel treuil 7 se compose de deux tambours motorisés 71, positionnés en regard l'un de l'autre.Such a winch 7 consists of two motorized drums 71, positioned opposite one another.

Chaque tambour 71 comporte chacun une surface périphérique cylindrique active munie de plusieurs gorges annulaires juxtaposées et coaxiales les unes par rapport aux autres.Each drum 71 each comprises an active cylindrical peripheral surface provided with several annular grooves juxtaposed and coaxial with each other.

Le câble C est destiné à être enroulé autour des deux tambours 71 selon un agencement de type hélicoïdal : les brins du câble C passe successivement depuis l'une des gorges annulaires d'un tambour 71 jusqu'à l'une des gorges annulaires de l'autre tambour 71.The cable C is intended to be wound around the two drums 71 according to an arrangement of the helical type: the strands of the cable C pass successively from one of the annular grooves of one drum 71 to one of the annular grooves of the other drum 71.

Et, comme illustré sur la figure 3, l'axe de rotation 71' des deux tambours motorisés 71 est orienté perpendiculairement (ici horizontalement), ou au moins approximativement perpendiculairement, par rapport à l'axe de rotation 61' de la bobine de stockage 61 (ici verticalement).And, as shown in picture 3 , the axis of rotation 71' of the two motorized drums 71 is oriented perpendicularly (here horizontally), or at least approximately perpendicularly, with respect to the axis of rotation 61' of the storage reel 61 (here vertically).

Encore dans ce document EP2178784 , les tambours motorisés 71 sont chacun formés de plusieurs poulies, chacune mobile en rotation autour d'un axe central commun 71', coopérant avec leurs propres moyens moteurs dédiés 72.Still in this document EP2178784 , the motorized drums 71 are each formed of several pulleys, each rotatable around a common central axis 71', cooperating with their own dedicated motor means 72.

Dispositif de trancannageTrancaning device

Le dispositif de trancannage 8 est interposé entre le dispositif de stockage 6 et le dispositif de traction 7, pour guider le câble C lors de son enroulement / déroulement par rapport à la bobine de stockage 61.The winding device 8 is interposed between the storage device 6 and the traction device 7, to guide the cable C during its winding / unwinding with respect to the storage reel 61.

Un tel dispositif de trancannage 8 est avantageusement choisi parmi les dispositifs de trancannage connus.Such a spooling device 8 is advantageously chosen from known spooling devices.

En l'espèce, tel que décrit plus en détails en relation avec la figure 2, le dispositif de trancannage 8 peut comprendre deux roues pour le guidage du câble C :

  • une roue mobile 81, associée à des moyens de manoeuvre 82 pour sa manoeuvre en translation selon une direction parallèlement à l'axe de rotation 61' de la bobine de stockage 61 (par exemple sous la forme d'un chariot motorisé 821 monté sur un rail de guidage 822), et
  • une roue fixe 82, pour la mise en tension du câble C et pour assurer l'interface entre la roue mobile 81 et le dispositif de traction 7.
In this case, as more fully described in connection with the picture 2 , the winding device 8 may comprise two wheels for guiding the cable C :
  • a movable wheel 81, associated with operating means 82 for its translational operation in a direction parallel to the axis of rotation 61' of the storage reel 61 (for example in the form of a motorized carriage 821 mounted on a guide rail 822), and
  • a fixed wheel 82, for tensioning the cable C and for providing the interface between the mobile wheel 81 and the traction device 7.

ChâssisFrame

Le châssis 5, avantageusement une structure métallique mécanosoudée, comprend une embase 51 qui est ici en forme de plateau ou plateforme horizontal(e), en l'espèce parallélépipédique.The frame 5, advantageously a mechanically welded metal structure, comprises a base 51 which is here in the form of a horizontal plate or platform, in this case parallelepipedic.

Cette embase 51 comporte avantageusement :

  • deux surfaces opposées : une surface supérieure 511 (orientée vers le haut) et une surface inférieure 512 (orientée vers le bas),
  • des surfaces latérales 513, et
  • une surface arrière 514.
This base 51 advantageously comprises:
  • two opposite surfaces: an upper surface 511 (oriented upwards) and a lower surface 512 (oriented downwards),
  • side surfaces 513, and
  • a rear surface 514.

La combinaison de dispositifs 6, 7, 8 est implantée de manière particulière sur cette embase 51 afin d'optimiser l'encombrement de ce dispositif de stockage 6.The combination of devices 6, 7, 8 is installed in a particular way on this base 51 in order to optimize the size of this storage device 6.

Plus particulièrement, les dispositifs 6, 7, 8 sont répartis ici de la manière suivante autour de l'embase 51 :

  • le dispositif de stockage 6 est sous-jacent de l'embase 51, rapporté ici en regard de la surface inférieure 512,
  • le dispositif de traction 7 est sus-jacent de l'embase 51, rapporté ici en regard de la surface supérieure 511, et
  • le dispositif de trancannage 8 est implanté latéralement par rapport à l'embase 51, en regard ici de l'une des deux surfaces latérales 513.
More particularly, the devices 6, 7, 8 are distributed here as follows around the base 51:
  • the storage device 6 is underlying the base 51, attached here opposite the lower surface 512,
  • the traction device 7 is overlying the base 51, attached here opposite the upper surface 511, and
  • the shearing device 8 is installed laterally with respect to the base 51, facing here one of the two lateral surfaces 513.

En d'autres termes, le dispositif de stockage 6 est accroché sous l'embase 51. Dans ce cadre, la structure porteuse 66 de la motorisation 65 (notamment l'arbre 661) est également suspendue sous l'embase 51.In other words, the storage device 6 is hooked under the base 51. In this context, the supporting structure 66 of the motorization 65 (in particular the shaft 661) is also suspended under the base 51.

L'embase 51 comporte encore des moyens de solidarisation latérale 516 pour sa fixation avec la grue offshore 1, en particulier avec sa structure support 2.The base 51 further comprises lateral securing means 516 for its attachment to the offshore crane 1, in particular with its support structure 2.

Les moyens de solidarisation latérale 516 consistent par exemple en une structure mécanosoudé 516 qui est implantée au niveau de la surface arrière 514.The lateral securing means 516 consist for example of a mechanically welded structure 516 which is installed at the level of the rear surface 514.

Procédé de fonctionnementOperation method

En pratique, le dispositif de traction 7 est mis en oeuvre pour exercer une traction sur le câble C en vue de son enroulement / déroulement par rapport au dispositif de stockage 6 et par rapport à la flèche 3.In practice, the traction device 7 is implemented to exert a traction on the cable C with a view to its winding / unwinding with respect to the storage device 6 and with respect to the arrow 3.

Parallèlement, la bobine de stockage 61 est manoeuvrée en rotation par la motorisation 65 associée.At the same time, the storage coil 61 is operated in rotation by the associated motorization 65.

L'unique couronne d'orientation 63 définit ainsi l'axe de rotation 61' de la bobine de stockage 61, ici vertical.The single slewing ring 63 thus defines the axis of rotation 61' of the storage coil 61, here vertical.

Au cours de cette rotation, le dispositif de trancannage 8 guide le câble C tout ou long de son enroulement / déroulement par rapport au dispositif de stockage 6.During this rotation, the winding device 8 guides the cable C all or along its winding / unwinding relative to the storage device 6.

Bien entendu, diverses autres modifications peuvent être apportées à l'invention dans le cadre des revendications annexées.Of course, various other modifications may be made to the invention within the scope of the appended claims.

Claims (10)

  1. A system for the storage and traction of a cable, in particular a synthetic cable fitted to an offshore crane,
    wherein said storage / traction system (4) comprises a frame (5) that carries a combination of devices (6, 7, 8) cooperating with said cable:
    (i) a storage device (6) including:
    - a storage reel (61) on which said cable is intended to be wound,
    - a support (62), carrying said storage reel (61) through assembly means (63) defining an axis of rotation (61'), and
    - a motorization (65), adapted to rotate said storage reel (61) about said axis of rotation (61'),
    (ii) a traction device (7), adapted to exert a traction on said cable, wherein said traction device (7) includes at least one drum (71) associated with a motorization (72), and
    (iii) a winding device (8), interposed between said storage device (6) and said traction device (7), to guide the cable during the winding / unwinding thereof with respect to said storage reel (61),
    wherein, between said storage reel (61) and said support (62), said assembly means (63) consist of a single slewing ring (63) comprising two rings that are free to rotate with respect to each other:
    - a fixed ring (631) that is fastened to said support (62), and
    - a moving ring (632) that is, on the one hand, fastened to said storage reel (61) and, on the other hand, rotated by said motorization (65).
  2. The system for the storage and traction of a cable according to claim 1, wherein the storage reel (61) comprises a cylindrical barrel (611) that comprises two cylindrical surfaces:
    - an outer surface (6111), around which the cable is intended to be wound, and
    - an opposite, inner surface (6112),
    and in that the motorization (65) of said storage device (6) is implanted opposite said outer surface (6111) and/or said inner surface (6112).
  3. The system for the storage and traction of a cable according to any of the claims 1 or 2, wherein the motorization (65) of said storage device (6) comprises at least two motors (651), which are regularly distributed over the circumference of said slewing ring (63).
  4. The system for the storage and traction of a cable according to any of the claims 1 to 3, wherein the moving ring (632) includes a toothing (6321) and in that the motorization (65) of said storage device (6) includes a driving pinion (652) meshing with said toothing (6321).
  5. The system for the storage and traction of a cable according to any of the claims 1 to 4, wherein the storage reel (61) includes two end edges (615, 616), and in that the slewing ring (63) is positioned at one of said end edges (615) of the storage reel (61).
  6. The system for the storage and traction of a cable according to any of the claims 1 to 5, wherein said storage reel (61) is assembled to the support (62) through said assembly means (63) defining a vertical axis of rotation (61').
  7. The system for the storage and traction of a cable according to claim 6, wherein the storage reel (61) includes two end edges (615, 616): an upper end edge (615) and a lower end edge (616), and in that the slewing ring (63) is located at said upper end edge (615).
  8. The system for the storage and traction of a cable according to claim 6 or claim 7, wherein the frame (5) comprises a base (51) on which said devices (6, 7, 8) are implanted, wherein:
    - said storage device (6) is located under said base (51),
    - said traction device (7) is located above said base (51), and
    - said winding device (8) is implanted laterally with respect to said base (51),
    and in that said base (51) also includes means (516) for the lateral fastening to said offshore crane (1).
  9. The system for the storage and traction of a cable according to any of the claims 1 to 8, wherein the motorization (65) is carried by a shaft (661) that is fastened to the frame (5) and arranged coaxially to said axis of rotation (61'),
    said shaft (661) being surrounded by said storage reel (61), as the case may be by the inner surface (6112) of the cylindrical barrel (611).
  10. The offshore crane equipped with a storage / traction system (6) according to any one of claims 1 to 9.
EP21182780.3A 2020-07-03 2021-06-30 System for storing and pulling of a cable, in particular of a synthetic cable fitted on an offshore crane Active EP3932847B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2007075A FR3112135B1 (en) 2020-07-03 2020-07-03 System for storing and pulling a cable, in particular a synthetic cable fitted to an offshore crane

Publications (2)

Publication Number Publication Date
EP3932847A1 EP3932847A1 (en) 2022-01-05
EP3932847B1 true EP3932847B1 (en) 2023-03-29

Family

ID=72709592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21182780.3A Active EP3932847B1 (en) 2020-07-03 2021-06-30 System for storing and pulling of a cable, in particular of a synthetic cable fitted on an offshore crane

Country Status (5)

Country Link
US (1) US11814271B2 (en)
EP (1) EP3932847B1 (en)
CN (1) CN113879992A (en)
DK (1) DK3932847T3 (en)
FR (1) FR3112135B1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4921219A (en) * 1988-04-13 1990-05-01 Imi-Barient, Inc. Powered sailboat winch
US5215272A (en) * 1991-01-30 1993-06-01 Sauber Charles J Winding device having a tilting table and method
US7134645B1 (en) * 2003-02-05 2006-11-14 Advanced Design Consulting Usa Winch assembly for use with synthetic ropes
FR2919280B1 (en) 2007-07-24 2010-02-19 Soc Et De Rech Et Dev D Automa WINCH FOR THE TRACTION OF CABLES, ESPECIALLY SYNTHETIC CABLES USED IN OFFSHORE.
DE102015009057A1 (en) * 2015-07-07 2017-01-12 Esw Gmbh Winch, method for controlling a winch operation, and method for operating a winch
NO20151605A1 (en) * 2015-11-25 2017-02-13 Rolls Royce Marine As System and winding device for winding a rope on a winch drum
CN110382346B (en) * 2017-01-16 2021-10-01 伊特里克公司 Deep water hoisting system and method

Also Published As

Publication number Publication date
US20220002120A1 (en) 2022-01-06
EP3932847A1 (en) 2022-01-05
FR3112135A1 (en) 2022-01-07
BR102021013172A2 (en) 2022-01-18
US11814271B2 (en) 2023-11-14
FR3112135B1 (en) 2022-06-17
DK3932847T3 (en) 2023-06-12
CN113879992A (en) 2022-01-04

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