EP2872439A1 - Ensemble treuil marin - Google Patents

Ensemble treuil marin

Info

Publication number
EP2872439A1
EP2872439A1 EP13759826.4A EP13759826A EP2872439A1 EP 2872439 A1 EP2872439 A1 EP 2872439A1 EP 13759826 A EP13759826 A EP 13759826A EP 2872439 A1 EP2872439 A1 EP 2872439A1
Authority
EP
European Patent Office
Prior art keywords
carriage
supporting rail
winch assembly
cable
cable drum
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
EP13759826.4A
Other languages
German (de)
English (en)
Other versions
EP2872439B1 (fr
Inventor
Joop Roodenburg
Hendrikus Jacobus Weterings
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.)
Huisman Equipment BV
Original Assignee
Itrec BV
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 Itrec BV filed Critical Itrec BV
Publication of EP2872439A1 publication Critical patent/EP2872439A1/fr
Application granted granted Critical
Publication of EP2872439B1 publication Critical patent/EP2872439B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B66D1/28—Other constructional details
    • B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
    • B66D1/39—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains by means of axially-movable drums or barrels

Definitions

  • the invention relates to a winch assembly according to the preamble of claim 1 , comprising:
  • Winch assemblies are used extensively in hauling, pulling and hoisting machines for raising and lowering loads, particularly heavy loads. For example, they are commonly used in well drilling rigs to raise and lower drilling tools and/or sensing instruments. Winch assemblies include a cable drum that supports a spool of cable that runs to the load, usually through one or more sheaves. The cable is taken in and payed out by rotating the drum.
  • the winch typically includes a high torque first drive unit for rotating the cable drum.
  • This first drive unit can for example comprise an electric motor with high torque gear reduction or a hydraulic motor.
  • a brake or clutch can be provided to prevent unwanted slippage of the cable drum and to avoid damaging the first drive unit.
  • the cable will generally wind evenly on the drum. This can generally be achieved by increasing the distance between cable and the first guide element (e.g. sheave) to which the cable extends.
  • the first guide element e.g. sheave
  • winch assemblies Upon using a winch assembly, it is thus required to ensure that the cable is wound (e.g., spooled) evenly about the circumference of the winch drum in multilayers, and unwound smoothly therefrom. This is particularly true when it is critical that the load to which the cable is connected be moved smoothly and without any sudden jerks.
  • winch assemblies are designed which allow an even distribution of its cable along the length of the winch drum, and allow unwinding of the cable perpendicular to the drum axis.
  • US 3,456,899 discloses an apparatus for aligning a winch drum with respect to a guide pulley so that a cable is wound uniformly onto and off of the drum.
  • the drum is mounted on a carriage driven along a pair of rails to keep the cable being wound onto or off the drum aligned with the guide pulley over which said cable passes.
  • a cam having a cable- sensor thereon is swingably mounted on a frame between the drum and the pulley so that as the angle between pulley and the point of contact between the drum and the cable leaving or approaching the drum starts to increase, said cam will actuate the carriage drive to keep said point and pulley aligned.
  • An advantage of this configuration is that the ends of the supporting rail can easily be connected, e.g. via a pin construction. This allows an improved interplay of forces, allowing the forces on the supporting rail to be transferred to the construction.
  • the present design allows the winch assembly to support hoist cables for a crane capable of supporting loads up to a few hundred tons.
  • the marine winch assembly is in particular suitable for appliances situated on board of vessels intended for handling submerged loads which are hooked onto the end of the cable.
  • Conventional cable lengths may vary between a few hundred metres up to a few kilometres, e.g. 500 meter - 5 km.
  • the cable used in the marine winch assembly according to the invention can be a massive steel cable or a rope, which can be made from natural or synthetic fibers, in particular polymer fibers. Possibly, aromatic polyamids (aramids) are applied, such as Twaron, Kevlar and Nomex, which thermally degrade at high temperatures and do not melt. These fibers have strong bonding between polymer chains, resulting in a high-performance man-made fiber.
  • the material of the cable may be dependent from environmental conditions. It is conceivable that in some instances, electrical signal conductors, optical conductors etc. may form part of the cable, such as for example in umbilical cables.
  • the dimensions of the marine winch assembly according to the invention when a rope is being wound and unwound from the cable drum are large, having a stroke of the cable drum in the longitudinal direction of 2 - 5 meter, in particular 3 - 4 meter, and a diameter of 3 - 5 meter without rope, and up to 6 - 7 meter including the rope.
  • the winch is used for spooling pipelines to be laid on the seabed.
  • the cable is thus embodied as a pipeline, which can be a rigid or a flexible pipeline, with a diameter up to 50 cm.
  • the cable drum is then the same as what is frequently called a 'reel', in the context of 'reel-lay pipelaying'.
  • the dimensions of the marine winch assembly will then be much larger than indicated above: the reel (cable drum) having a stroke in the longitudinal direction of 7-15 meter, in particular 10 meter, and a diameter of 15-20 meter without pipeline, and up to 30 - 40 meter including the pipeline.
  • the winch assembly according to the present invention can be used in combination with any type of sensor system to accurately drive the second drive unit.
  • a tangle-free winding of a cable about the cable drum is preferably relied on an electromechanical sensing device used to control the traverse movements of the carriage in accordance with a desired lag angle and a desired manner and rate of coiling of the cable about the cable drum.
  • Fig. 1 shows a side view of a winch assembly according to the present invention
  • Fig. 2 shows a top view of the winch assembly of fig. 1 ;
  • Fig. 3 shows a detail of the winch assembly of fig. 1 ;
  • Fig. 4 shows part of the winch assembly of fig. 1 in cross section
  • Fig. 5 shows a detail of the winch assembly of fig. 1 ;
  • Figs. 6a and 6b show a winch assembly according to the invention mounted in the hull of a vessel in perpendicular side views.
  • the marine winch assembly 1 comprises a supporting rail 2, a carriage 3 which is movably supported on said supporting rail 2 and a cable drum 4.
  • the cable drum has a longitudinal axis 5, parallel to the supporting rail 2.
  • the supporting rail 2 extends through the carriage 3 and through the cable drum 4, while the cable drum 4 is rotatably supported on said carriage 3.
  • the supporting rail 2 is here embodied as an essentially square, elongated beam.
  • the rail is composed of welded plates, alternatively it is conceivable that the rail is of a massive construction. Corners 2a-2d of the beam act as a bearing surface for the carriage 3, which is movably supported by this supporting rail 2.
  • the bearing surfaces are machined planar surfaces.
  • the functions of the rail are carrying the weight of the carriage and the cable drum, providing a bearing surface for the carriage and withstanding torsion forces exerted by the first drive unit.
  • the carriage supports the first drive unit it should at all times be prevented that the carriage can rotate, which is inherently achieved by a cross-section of the supporting rail not allowing rotation, i.e. a non-circular cross-section.
  • Any configuration, either hollow or massive of the rail is possible.
  • Polygonal cross sections are preferred, e.g. pentagonal or octagonal cross- sections.
  • one end of the supporting rail 2 is visible, which in this embodiment is provided with an end plate 8. This end plate 8 is suitable for mounting the marine winch assembly.
  • pins 9 are used to mount the supporting rail 2 to a support 10, which can e.g. be a structure mounted on a deck of a vessel, or a pedestal of a crane, or the hull of a vessel, etc. etc.
  • the cable drum 4 may also be referred to as a reel, having a cylindrical core 4a and drum walls 4b on the sides, to retain the material wound around the core 4a.
  • Reinforcement plates 4c are additionally provided in this embodiment, visible in detail in fig. 5.
  • the core 4a is hollow, to allow the supporting rail 2 to extend through it.
  • the carriage 3 in the shown embodiment is configured such that it comprises two carriage parts 3a and 3b, provided adjacent both drum walls 4b of the cable drum 4. It is conceivable, but not necessary, that the carriage parts 3a and 3b are connected to each other inside the hollow core 4a of the cable drum. It is also conceivable that the carriage is only provided at one drum wall 4b of the cable drum 4.
  • a second drive unit 30 is provided for moving the carriage 3 relative to the supporting rail 2, to displace the cable drum 4 along the supporting rail 2.
  • the second drive unit 30 in this embodiment is based on a rack and pinion principle.
  • a rack 31 is provided, here extending on top of and parallel to the supporting rail 2, over which a set of pinions 33 is movable, provided opposite of each other on either side of the rack 31.
  • the second drive unit 30 comprises two sets of pinions 33, for each carriage part 3a, 3b.
  • Each set of pinions 33 is driven by its own motor 32.
  • the carriage 3 is thus moveable relative to the supporting rail 2 by the second drive unit 30, which in the shown embodiment is supported by the carriage.
  • the motor of the second drive unit is provided adjacent the marine winch assembly, and not supported by the carriage.
  • the carriage 3 is movably supported by the supporting rail 2 at the corners 2a-2d, acting as a bearing surface for the carriage 3.
  • Any type of bearing between the supporting rail 2 and the carriage 3 is conceivable, e.g. wheels, rollers, skid pads, etc.
  • a carriage part 3a is shown, of which only the upper left part is shown in detail in fig. 4.
  • the carriage part 3a comprises a support plate 27, supporting wheels 25a, 25b which roll over these bearing surfaces of the supporting rail 2.
  • each corner 2a-2d of the supporting rail 2 is provided with two perpendicular bearing surfaces, over each one at least one wheel 25a, 25b is moveable.
  • four corners each having two bearing surfaces result in at least 8 wheels per carriage part 3a, 3b.
  • the wheels 25a, 25b are mounted via the support plate 27 to the frames of the carriage parts.
  • not just one wheel is provided to roll over the corners, but pairs of wheels known as 'bogies', having parallel rotation axes and suspended behind each other from a single suspension point.
  • corners 2c and 2d are visible, and here the 'bogies' (sets of wheels) 25a'and 25a" are visible rolling over one of the bearing surfaces of corner 2d.
  • An advantage of using bogies is that the position of the wheels is adjustable to arrive at an optimized load distribution with the supporting rail 2, thus contributing to an improved suspension of the carriage 3 with the cable drum 4.
  • Using bogies the load of the drum is spread over a larger surface of the rail, which is
  • the support plate 27 is embodied as an end plate of the carriage essentially adjacent to the drum, as is visible in fig. 1.
  • the support plate 27 is provided with a knife edge bearing on which the bogie is mounted.
  • a first drive unit 20 for rotating the drum is according to the invention supported by the carriage 3.
  • the first drive unit 20 comprises 12 motors 21 , each carriage part 3a, 3b supporting 6 motors, all extending to the drum walls 4b of the cable drum 4.
  • the first drive unit is based on a meshing gear principle. Other transmission principles are also conceivable, which may be in particular dependent on the type of motor being applied.
  • the transmission of the rotational forces is in this embodiment achieved by providing the motors 21 with pinions 22 , meshing with an outer ring gear 29 provided on the drum .
  • the cable drum 4 is rotatably supported by the carriage 3 via a bearing.
  • a roller bearing is being applied, in particular visible in fig. 5, comprising a horizontal carriage bearing surface 35 is provided, opposite a horizontal cable drum bearing surface 36, between which rollers 37 are positioned.
  • the cable drum bearing surface 36 is formed integral with the outer ring gear 29.
  • the marine winch assembly is provided with a sensor for measuring a cable angle of a cable being spooled onto or off the cable drum is provided, which sensor is coupled with actuating means for driving the second drive unit to control the position of the carriage based on the input of the sensor.
  • Figs. 6a and 6b show a winch assembly 100 according to the invention, suitable for hoisting loads with a crane 101.
  • the crane 101 is mounted on a pedestal 102, mounted on deck 103 of a vessel 105.
  • the winch assembly 100 is mounted, wherein the ends of the rail 1 10 are connected to portions of the hull 106.

Landscapes

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

Abstract

La présente invention concerne un ensemble treuil marin, comprenant un rail de support, un chariot supporté de manière mobile sur ledit rail de support, un tambour d'enroulement de câble présentant un axe longitudinal, parallèle au rail de support, qui est supporté rotatif sur ledit chariot, une première unité d'entraînement supportée par le chariot pour faire tourner le tambour d'enroulement de câble et une seconde unité d'entraînement pour déplacer le chariot par rapport au rail de support afin de déplacer le tambour d'enroulement de câble le long du rail de support. Selon la présente invention, le rail de support s'étend à travers le chariot et à travers le tambour d'enroulement de câble.
EP13759826.4A 2012-07-16 2013-07-08 Ensemble treuil marin Active EP2872439B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1039735A NL1039735C2 (en) 2012-07-16 2012-07-16 Marine winch assembly.
PCT/NL2013/050512 WO2014014344A1 (fr) 2012-07-16 2013-07-08 Ensemble treuil marin

Publications (2)

Publication Number Publication Date
EP2872439A1 true EP2872439A1 (fr) 2015-05-20
EP2872439B1 EP2872439B1 (fr) 2017-09-06

Family

ID=46800334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13759826.4A Active EP2872439B1 (fr) 2012-07-16 2013-07-08 Ensemble treuil marin

Country Status (4)

Country Link
EP (1) EP2872439B1 (fr)
NL (1) NL1039735C2 (fr)
NO (1) NO2872439T3 (fr)
WO (1) WO2014014344A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1210536B (de) * 1963-09-27 1966-02-10 Strabag Bau Ag Seilwinde mit Fahrwerk
US3456899A (en) * 1967-08-28 1969-07-22 Baker & Co Hugh J Winch assembly
FR2417466A1 (fr) * 1978-02-17 1979-09-14 Brissonneau & Lotz Appareil de levage utilisant un treuil a cable sans rea de renvoi et sans guide-cable, supprimant tout deplacement du cable dans une direction donnee
US4218025A (en) * 1978-12-13 1980-08-19 Western Electric Company, Inc. Conveying apparatus having load-bearing connecting links

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014014344A1 *

Also Published As

Publication number Publication date
WO2014014344A1 (fr) 2014-01-23
EP2872439B1 (fr) 2017-09-06
NO2872439T3 (fr) 2018-02-03
NL1039735C2 (en) 2014-01-20

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