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EP3932847A1 - 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
EP3932847A1
EP3932847A1 EP21182780.3A EP21182780A EP3932847A1 EP 3932847 A1 EP3932847 A1 EP 3932847A1 EP 21182780 A EP21182780 A EP 21182780A EP 3932847 A1 EP3932847 A1 EP 3932847A1
Authority
EP
European Patent Office
Prior art keywords
cable
storage
traction
storage reel
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
EP21182780.3A
Other languages
German (de)
French (fr)
Other versions
EP3932847B1 (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
    • 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
    • B66D1/7405—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
    • 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 the storage and traction of a cable, in particular of a synthetic cable fitted to an offshore crane.
  • Some cranes consist, for example, of articulated boom cranes (also called “skull knuckle boom” in English).
  • Cranes are useful, without being limiting, for the installation or dismantling of transport infrastructure, repairs or on-board operations.
  • these cranes conventionally include 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 is proposed for the storage and traction of a cable, in particular of 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.
  • the offshore crane 1 (also called “crane 1”), generally illustrated on 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 suitable for being on board the “offshore” machine.
  • gear in particular marine
  • pontoons in particular ships
  • barges barges and other offshore platforms.
  • the crane 1 is useful, without being restrictive, for the installation or dismantling of transport infrastructure, repairs or operations on board.
  • the support structure 2 advantageously consists of a barrel or mat, intended to be rotated about a vertical longitudinal axis by means of maneuvering means (not shown, advantageously hydraulic or electric).
  • the boom 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 is fitted to 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 which the two flanges 612 are positioned.
  • the storage reel 61 is positioned so that its axis of rotation 61 'is oriented vertically.
  • the two end edges 615, 616 of the storage reel 61 here define, respectively, an end edge upper 615 (facing up) and a lower end rim 616 (facing down).
  • the aforementioned assembly means 63 consist of a single orientation ring (visible in particular on the figure 6 - designated by the same reference 63 for the sake of simplicity).
  • This single orientation ring 63 is advantageously coaxial with respect to the axis of rotation 61 ', and it extends here in a general 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 ends 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 reel 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 by means of a bearing, preferably a ball bearing.
  • the movable ring 632 comprises teeth 6321 (or teeth 6321), advantageously in the form of a straight toothing (designated by the same reference mark 6321), to form a gear wheel.
  • the teeth 6321 are distributed here along an internal cylindrical surface 6322, parallel and coaxial with the axis of rotation 61 'of the storage reel 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 reel 61.
  • the motorization 65 of the storage device 6 is for its part advantageously located opposite the exterior surface 6111 and / or the interior surface 6112 of the cylindrical barrel 611.
  • This motorization 65 is here positioned facing the interior surface 6112 of the cylindrical barrel 611, in the cylindrical interior space E and between the two end edges 615, 616.
  • the size of the storage device 6 is thus defined by its storage reel 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 (here inside) 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 reel 61, between this axis of rotation 61' and the interior surface 6112 of the cylindrical barrel 611.
  • the motors 651 are here secured to (and carried by) a supporting structure 66 which extends the frame 5.
  • This supporting structure 66 comprises in particular a central body 661 (advantageously cylindrical), also referred to under the name of “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 reel 61, optionally by the interior surface 6112 of the cylindrical barrel 611.
  • the shaft 661 thus passes through a first end edge 615 (here upper) of the storage reel 61 and extends over part of the height of the cylindrical interior space E (advantageously without emerging at the level of a second end edge 616, here lower).
  • the motorization 65 (and in particular the motors 651) is thus located in the annular space defined between the shaft 661 (on the inside) and the internal surface 6112 of the cylindrical barrel 611 (on the 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 movable ring 632.
  • the motor pinion 652 thus comprises teeth 6521, here also defining a straight toothing (designated by the same reference mark 6521).
  • the drive 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 get along advantageously in the same plane, perpendicular to the axis of rotation 61 ', in this case in a horizontal plane.
  • the drive pinion 652 thus cooperates with the teeth 6321 of the movable ring 632 so as to define together, in the present embodiment, a parallel and internal gear with a cylindrical wheel.
  • Each drive pinion 652 is thus implanted along the inner cylindrical surface 6322 of the movable ring 632, more preferably in the annular space defined between the shaft 661 (inside) and the inner cylindrical surface 6322 of the ring. mobile 632 (outside).
  • the storage reel 61 and the movable ring 632 have axes of rotation 61 ', 632' which are coaxial with one another.
  • Each motor pinion 652 has an axis of rotation 652 'which is parallel, and laterally offset, with respect to the axis of rotation 61' of the storage reel 61 and with respect to the axis of rotation 632 'of the movable ring. 632.
  • the single slewing ring 63 is implanted / positioned at a first end edge 615 of the storage reel 61; the support 62 is also located opposite this first end edge 615 of the storage reel 61.
  • the second end edge 616 of the storage reel 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 by means of the assembly means 63 defining a vertical axis of rotation 61 '.
  • the drive 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 located at the level of the upper end edge 615 of the storage reel 61.
  • the lower end edge 616 of the storage reel 61 is advantageously free.
  • the drive pinion 652 is then advantageously located at this same upper end edge 615 of the storage reel 61.
  • the associated motor 651 is underlying this drive pinion 652.
  • the lower end edge 616 (free) advantageously defines a downwardly oriented through opening to facilitate access to the cylindrical interior space E.
  • the traction device 7, also called a “winch”, is suitable for exerting traction on the cable C.
  • Such a traction device 7 is advantageously chosen from the known traction devices and winches.
  • This traction device 7 advantageously consists of a capstan winch.
  • 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 respect to one another.
  • 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 a 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 movable in rotation about a common central axis 71 ', cooperating with their own dedicated motor means 72.
  • the trancanning device 8 is interposed between the storage device 6 and the traction device 7, to guide the cable C during its winding / unwinding relative to the storage reel 61.
  • Such a cross-cutting device 8 is advantageously chosen from known cross-cutting 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 parallelepiped.
  • 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 hung 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 also comprises lateral securing means 516 for its attachment with 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 implanted at the level of the rear surface 514.
  • the traction device 7 is implemented to exert traction on the cable C with a view to its winding / unwinding relative to the storage device 6 and relative to the boom 3.
  • the single slewing ring 63 thus defines the axis of rotation 61 ′ of the storage reel 61, here vertical.
  • the trancanning 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)

Abstract

La présente invention concerne un système pour le stockage et la traction d'un câble, en particulier d'un câble synthétique équipant une grue offshore.Ce système de stockage/traction (4) comprend un châssis (5) qui porte notamment un dispositif de stockage (6) comportant un support (62) portant une bobine de stockage (61) par l'intermédiaire de moyens d'assemblage (63) définissant un axe de rotation (61').Entre ladite bobine de stockage (61) et ledit support (62), les moyens d'assemblage (63) consistent en une unique couronne d'orientation (63) comprenant deux bagues qui sont libres en rotation l'une par rapport à l'autre :- une bague fixe (631) qui est solidarisée avec ledit support (62), et- une bague mobile (632) qui est, d'une part, solidarisée avec ladite bobine de stockage (61) et, d'autre part, manœuvrée en rotation par une motorisation (65).The present invention relates to a system for the storage and traction of a cable, in particular a synthetic cable fitted to an offshore crane. This storage/traction system (4) comprises a frame (5) which carries in particular a device for storage (6) comprising a support (62) carrying a storage coil (61) via assembly means (63) defining an axis of rotation (61').Between said storage coil (61) and said support (62), the assembly means (63) consist of a single slewing ring (63) comprising two rings which are free to rotate relative to each other: - a fixed ring (631) which is secured to said support (62), and- a movable ring (632) which is, on the one hand, secured to said storage coil (61) and, on the other hand, operated in rotation by a motorization (65) .

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 the storage and traction of a cable, in particular of 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 œuvre soient équipés d'au moins une grue. Certaines grues consistent par exemple en des grues à flèche articulée (dites encore « knuckle boom crâne » en anglais).In the offshore sector, it is common for the machinery used to be equipped with at least one crane. Some cranes consist, for example, of articulated boom cranes (also called “skull knuckle boom” in English).

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, without being limiting, for the installation 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 perform the operations, these cranes conventionally include 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 manœuvrer 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 comprises for this 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 by means of assembly means defining an axis of rotation, and
    • a motorization, adapted to maneuver said storage reel in rotation about 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 motor, and
  3. (iii) a trancanning device, interposed between said storage device and said traction device, to guide the cable during its winding / unwinding relative 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 current storage / traction systems are relatively heavy and bulky. However, these parameters are among the essential points in the design of an offshore machine.

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 consequently a need for technical solutions to optimize the structure of these storage / traction systems (in particular 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 the storage and traction of a cable, in particular of 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 manœuvrer 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 by means of assembly means defining an axis of rotation, and
    • a motorization, adapted to maneuver said storage reel in rotation about 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 motor, and
  3. (iii) a trancanning device, interposed between said storage device and said traction device, to guide the cable during its winding / unwinding relative 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, manœuvrée en rotation par ladite motorisation.
And, according to the invention, between said storage reel and said support, said assembly means consist of a single slewing ring comprising two rings which are free to rotate with respect to one another:
  • a fixed ring which is secured to said support, and
  • a movable ring which is, on the one hand, secured to said storage reel and, on the other hand, rotated by said motor.

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 in any technically possible combination, are as follows:
  • the storage reel comprises a cylindrical barrel (terminated by two flanges), which cylindrical barrel comprises two cylindrical surfaces (an exterior surface, around which the cable is intended to be wound and an interior surface, opposite), and the motorization of said device storage is located opposite 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 toothing and in that the motorization of said storage device comprises a drive pinion meshing with said toothing;
  • the storage reel has two end edges, and the slewing ring is positioned at one of said end edges of the storage reel;
  • said storage reel is assembled with the support by means of said assembly means defining a vertical axis of rotation; preferably, the storage reel 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 frame comprises a base on which said devices are implanted, with said storage device underlying said base, said traction device is overlying said base, and said trancanning device is implanted 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 integral with the frame and which is arranged coaxially with respect to said axis of rotation, which shaft is surrounded by said storage reel, where appropriate by the interior surface of the cylindrical barrel;
  • said traction device consists of a capstan winch, which consists of two motorized drums, positioned opposite one another and each comprising a cylindrical peripheral surface provided with several annular grooves juxtaposed and coaxial with respect to each other, said cable being intended to be wound around said two drums in a helical-type arrangement, 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 mutually exclusive.

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 given with reference to the drawings which illustrate non-limiting embodiments of the invention and in which:
  • [ 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 in accordance with figure 1 , along a vertical section plane passing through the axis of rotation of the storage reel;
  • [ Fig. 5 ] is a perspective view of the storage device in section according to 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 reel 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.The offshore crane 1 (also called “crane 1”), generally illustrated on 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 suitable for being on board 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.The term “gear” includes, for example, gear (in particular marine), in particular ships, pontoons, 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 restrictive, for the installation or dismantling of 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 manœuvre d'un câble Ç (représenté partiellement sur les figures 1 à 3) destiné à suspendre / recevoir une charge à déplacer (non représentée).
Crane 1 consists of three main components:
  • 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 Ç (partially shown 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 manœuvre (non représentés, avantageusement hydraulique ou électrique).The support structure 2 advantageously consists of a barrel or mat, 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 boom 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 is fitted to 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 C, 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 in the cable C ,
  • a traction device 7, suitable for exerting traction on the cable C with a view to its winding / unwinding relative to the storage device 6, and
  • a trancanning device 8, interposed between the storage device 6 and the traction device 7, to guide the cable C during its winding / unwinding relative 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 manœuvrer la bobine de stockage 61 en rotation autour de son axe de rotation 61'.
As described below in relation to 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 by means of assembly means 63 (visible in particular on the figure 6 ) defining an axis of rotation 61 'for the storage reel 61, and
  • a motor 65, adapted to maneuver the storage reel 61 in rotation about 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, comprises two cylindrical surfaces 6111, 6112, opposite, namely:
  • an outer surface 6111, around which the cable C is intended to be wound, and
  • an interior surface 6112, opposite, delimiting a cylindrical interior 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 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 reel 61 is positioned so that its axis of rotation 61 'is oriented vertically. And the two end edges 615, 616 of the storage reel 61 here define, respectively, an end edge upper 615 (facing up) and a lower end rim 616 (facing down).

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 reel 61 and the support 62, the aforementioned assembly means 63 consist of a single orientation ring (visible in particular on the figure 6 - designated by the same reference 63 for the sake of simplicity).

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 orientation ring 63 is advantageously coaxial with respect to the axis of rotation 61 ', and it extends here in a general 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, manœuvrée en rotation par la motorisation 65.
In this case, the single slewing ring 63 comprises two rings 631, 632 which are free to rotate with respect to each other (coaxially with respect to the aforementioned axis of rotation 61 '), namely :
  • a fixed ring 631 (here outer), which is secured (preferably by bolting) with the support 62, and
  • a movable ring 632 (here inner) which is, on the one hand, secured (preferably by bolting) with the storage reel 61 and, on the other hand, rotated 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 relation to 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 ends 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 reel 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 by means of 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 comprises teeth 6321 (or teeth 6321), advantageously in the form of a straight toothing (designated by the same reference mark 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 internal cylindrical surface 6322, parallel and coaxial with the axis of rotation 61 'of the storage reel 61.

La bague mobile 632 est ainsi destinée à être manœuvrée 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 reel 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 opposite the exterior surface 6111 and / or the interior 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 facing the interior surface 6112 of the cylindrical barrel 611, in the cylindrical interior space E and between the two end edges 615, 616. The size of the storage device 6 is thus defined by its storage reel 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 (here inside) 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 reel 61, between this axis of rotation 61' and the interior 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 to (and carried by) a supporting 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 supporting structure 66 comprises in particular a central body 661 (advantageously cylindrical), also referred to under the name of “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 reel 61, optionally by the interior 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 passes through a first end edge 615 (here upper) of the storage reel 61 and extends over part of the height of the cylindrical interior space E (advantageously without emerging at the level of a second end edge 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 located in the annular space defined between the shaft 661 (on the inside) and the internal surface 6112 of the cylindrical barrel 611 (on the outside).

Pour la manœuvre 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 movable 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 movable 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 a straight toothing (designated by the same reference mark 6521).

Les pignons moteurs 652 et la bague mobile 632 présentent alors des axes de rotation 652', 632' parallèles (figure 6).The drive 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 get along advantageously 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 drive pinion 652 thus cooperates with the teeth 6321 of the movable 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 drive pinion 652 is thus implanted along the inner cylindrical surface 6322 of the movable ring 632, more preferably 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 reel 61 and the movable ring 632 have axes of rotation 61 ', 632' which are coaxial with one another. Each motor pinion 652 has an axis of rotation 652 'which is parallel, and laterally offset, with respect to the axis of rotation 61' of the storage reel 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 slewing ring 63 is implanted / positioned at a first end edge 615 of the storage reel 61; the support 62 is also located opposite this first end edge 615 of the storage reel 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 reel 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 by means of the 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 into account this vertical axis of rotation 61 ', the drive 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 located at the level of the upper end edge 615 of the storage reel 61. The lower end edge 616 of the storage reel 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 drive pinion 652 is then advantageously located at this same upper end edge 615 of the storage reel 61. The associated motor 651 is underlying this drive 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 downwardly oriented through opening 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 a “winch”, is suitable for exerting 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 the 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. In general, 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 respect to one another.

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 a 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 on the figure 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.Again in this document EP2178784 , the motorized drums 71 are each formed of several pulleys, each movable in rotation about a common central axis 71 ', cooperating with their own dedicated motor means 72.

Dispositif de trancannageCross-cutting 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 trancanning device 8 is interposed between the storage device 6 and the traction device 7, to guide the cable C during its winding / unwinding relative to the storage reel 61.

Un tel dispositif de trancannage 8 est avantageusement choisi parmi les dispositifs de trancannage connus.Such a cross-cutting device 8 is advantageously chosen from known cross-cutting 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 manœuvre 82 pour sa manœuvre 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 the present case, as described in more detail in connection with the figure 2 , the trancanning device 8 can include two wheels for guiding the cable C :
  • a movable wheel 81, associated with maneuvering means 82 for its translational maneuver 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 movable 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 parallelepiped.

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 opposing surfaces: an upper surface 511 (facing upward) and a lower surface 512 (facing downward),
  • 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, reported here facing the lower surface 512,
  • the traction device 7 is overlying the base 51, reported here facing the upper surface 511, and
  • the cross-cutting device 8 is installed laterally with respect to the base 51, here facing 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 hung 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 also comprises lateral securing means 516 for its attachment with 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 implanted at the level of the rear surface 514.

Procédé de fonctionnementMethod of operation

En pratique, le dispositif de traction 7 est mis en œuvre 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 traction on the cable C with a view to its winding / unwinding relative to the storage device 6 and relative to the boom 3.

Parallèlement, la bobine de stockage 61 est manœuvrée en rotation par la motorisation 65 associée.At the same time, the storage reel 61 is rotated 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 reel 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 trancanning 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 can be made to the invention within the scope of the appended claims.

Claims (10)

Système pour le stockage et la traction d'un câble, en particulier d'un câble synthétique équipant une grue offshore,
lequel système de stockage/traction (4) comprend un châssis (5) qui porte une combinaison de dispositifs (6, 7, 8) coopérant avec ledit câble : (i) un dispositif de stockage (6) comportant : - une bobine de stockage (61) sur laquelle ledit câble est destiné à être enroulé, - un support (62), portant ladite bobine de stockage (61) par l'intermédiaire de moyens d'assemblage (63) définissant un axe de rotation (61'), et - une motorisation (65), adaptée à manœuvrer ladite bobine de stockage (61) en rotation autour dudit axe de rotation (61'), (ii) un dispositif de traction (7), adapté à exercer une traction sur ledit câble, lequel dispositif de traction (7) comporte au moins un tambour (71) associé à une motorisation (72), et (iii) un dispositif de trancannage (8), interposé entre ledit dispositif de stockage (6) et ledit dispositif de traction (7), pour guider le câble lors de son enroulement / déroulement par rapport à ladite bobine de stockage (61), caractérisé en ce que, entre ladite bobine de stockage (61) et ledit support (62), lesdits moyens d'assemblage (63) consistent en une unique couronne d'orientation (63) comprenant deux bagues qui sont libres en rotation l'une par rapport à l'autre : - une bague fixe (631) qui est solidarisée avec ledit support (62), et - une bague mobile (632) qui est, d'une part, solidarisée avec ladite bobine de stockage (61) et, d'autre part, manœuvrée en rotation par ladite motorisation (65). System for storing and pulling a cable, in particular a synthetic cable fitted to an offshore crane,
which storage / traction system (4) comprises a frame (5) which carries a combination of devices (6, 7, 8) cooperating with said cable: (i) a storage device (6) comprising: - a storage reel (61) on which said cable is intended to be wound, - a support (62), carrying said storage reel (61) by means of assembly means (63) defining an axis of rotation (61 '), and - a motorization (65), adapted to maneuver said storage reel (61) in rotation about said axis of rotation (61 '), (ii) a traction device (7), suitable for exerting traction on said cable, which traction device (7) comprises at least one drum (71) associated with a motor (72), and (iii) a trancanning device (8), interposed between said storage device (6) and said traction device (7), to guide the cable during its winding / unwinding relative to said storage reel (61), characterized in that , between said storage reel (61) and said support (62), said assembly means (63) consist of a single slewing ring (63) comprising two rings which are free to rotate one compared to the other: - a fixed ring (631) which is secured to said support (62), and - A movable ring (632) which is, on the one hand, secured to said storage reel (61) and, on the other hand, rotated by said motor (65). Système pour le stockage et la traction d'un câble, selon la revendication 1, caractérisé en ce que la bobine de stockage (61) comprend un fût cylindrique (611) qui comprend deux surfaces cylindriques : - une surface extérieure (6111), autour de laquelle le câble est destiné à être enroulé, et - une surface intérieure (6112), opposée, et en ce que la motorisation (65) dudit dispositif de stockage (6) est implantée en regard de ladite surface extérieure (6111) et/ou de ladite surface intérieure (6112).System for storing and pulling a cable, according to claim 1, characterized in that the storage reel (61) comprises a cylindrical barrel (611) which comprises two cylindrical surfaces: - an outer surface (6111), around which the cable is intended to be wound, and - an interior surface (6112), opposite, and in that the motorization (65) of said storage device (6) is located opposite said exterior surface (6111) and / or said interior surface (6112). Système pour le stockage et la traction d'un câble, selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que la motorisation (65) dudit dispositif de stockage (6) comprend au moins deux moteurs (651) qui sont régulièrement répartis sur la circonférence de ladite couronne d'orientation (63).System for storing and pulling a cable, according to any one of claims 1 or 2, characterized in that 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). Système pour le stockage et la traction d'un câble, selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la bague mobile (632) comporte une denture (6321) et en ce que la motorisation (65) dudit dispositif de stockage (6) comporte un pignon moteur (652) engrenant avec ladite denture (6321).System for storing and pulling a cable, according to any one of claims 1 to 3, characterized in that the movable ring (632) comprises toothing (6321) and in that the motorization (65) of said device storage (6) comprises a motor pinion (652) meshing with said toothing (6321). Système pour le stockage et la traction d'un câble, selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la bobine de stockage (61) comporte deux bordures d'extrémité (615, 616), et en ce que la couronne d'orientation (63) est positionnée au niveau de l'une desdites bordures d'extrémité (615) de la bobine de stockage (61).System for storing and pulling a cable, according to any one of claims 1 to 4, characterized in that the storage reel (61) has 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). Système pour le stockage et la traction d'un câble, selon l'une quelconque des revendications 1 à 5, caractérisé en ce que ladite bobine de stockage (61) est assemblée avec le support (62) par l'intermédiaire desdits moyens d'assemblage (63) définissant un axe de rotation (61') vertical.System for storing and pulling a cable, according to any one of claims 1 to 5, characterized in that said storage reel (61) is assembled with the support (62) by means of said means of assembly (63) defining a vertical axis of rotation (61 '). Système pour le stockage et la traction d'un câble, selon la revendication 6, caractérisé en ce que la bobine de stockage (61) comporte deux bordures d'extrémité (615, 616) : une bordure d'extrémité supérieure (615) et une bordure d'extrémité inférieure (616), et en ce que la couronne d'orientation (63) est localisée au niveau de ladite bordure d'extrémité supérieure (615).System for storing and pulling a cable, according to claim 6, characterized in that the storage reel (61) has 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). Système pour le stockage et la traction d'un câble, selon l'une quelconque des revendications 6 ou 7, caractérisé en ce que le châssis (5) comprend une embase (51) sur lequel lesdits dispositifs (6, 7, 8) sont implantés, avec : - ledit dispositif de stockage (6) est sous-jacent de ladite embase (51), - ledit dispositif de traction (7) est sus-jacent de ladite embase (51), et - ledit dispositif de trancannage (8) est implanté latéralement par rapport à ladite embase (51), et en ce que ladite embase (51) comporte encore des moyens de solidarisation latérale (516) avec ladite grue offshore (1).System for storing and pulling a cable, according to any one of claims 6 or 7, characterized in that the frame (5) comprises a base (51) on which said devices (6, 7, 8) are implanted, with: - said storage device (6) is underlying said base (51), - said traction device (7) is overlying said base (51), and - said cross-cutting device (8) is installed laterally with respect to said base (51), and in that said base (51) further comprises means for lateral attachment (516) with said offshore crane (1). Système pour le stockage et la traction d'un câble, selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la motorisation (65) est portée par un arbre (661) qui est solidarisé avec le châssis (5) et qui est agencé coaxialement par rapport audit axe de rotation (61'),
lequel arbre (661) est entouré par ladite bobine de stockage (61), le cas échéant par la surface intérieure (6112) du fût cylindrique (611).System for storing and pulling a cable, according to any one of claims 1 to 8, characterized in that the motorization (65) is carried by a shaft (661) which is secured to the frame (5) and which is arranged coaxially with respect to said axis of rotation (61 '),
which shaft (661) is surrounded by said storage reel (61), optionally by the interior surface (6112) of the cylindrical barrel (611). Grue offshore équipé d'un système de stockage / traction (6) selon l'une quelconque des revendications 1 à 9.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

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

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EP (1) EP3932847B1 (en)
CN (1) CN113879992A (en)
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US20250128920A1 (en) * 2023-10-20 2025-04-24 Zhejiang Nowvow Mechanical and Electrical Corp., Ltd. Electric hoist

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US7134645B1 (en) * 2003-02-05 2006-11-14 Advanced Design Consulting Usa Winch assembly for use with synthetic ropes
EP2178784A1 (en) 2007-07-24 2010-04-28 Ste D'etudes De Recherche Et Developpement D'Automatismes Winch for pulling cables, in particular synthetic cables used offshore
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BR102021013172A2 (en) 2022-01-18
CN113879992A (en) 2022-01-04
FR3112135B1 (en) 2022-06-17
EP3932847B1 (en) 2023-03-29
FR3112135A1 (en) 2022-01-07
DK3932847T3 (en) 2023-06-12
US11814271B2 (en) 2023-11-14
US20220002120A1 (en) 2022-01-06

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