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EP0036375A1 - Lifting apparatus for the platform of a launching or hauling-out installation for ships - Google Patents

Lifting apparatus for the platform of a launching or hauling-out installation for ships Download PDF

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Publication number
EP0036375A1
EP0036375A1 EP81400426A EP81400426A EP0036375A1 EP 0036375 A1 EP0036375 A1 EP 0036375A1 EP 81400426 A EP81400426 A EP 81400426A EP 81400426 A EP81400426 A EP 81400426A EP 0036375 A1 EP0036375 A1 EP 0036375A1
Authority
EP
European Patent Office
Prior art keywords
platform
pulley
fixed
block
pulleys
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.)
Withdrawn
Application number
EP81400426A
Other languages
German (de)
French (fr)
Inventor
Jacques Riboulet
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.)
Delattre Levivier SA
Original Assignee
Delattre Levivier SA
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 Delattre Levivier SA filed Critical Delattre Levivier SA
Publication of EP0036375A1 publication Critical patent/EP0036375A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C3/00—Launching or hauling-out by landborne slipways; Slipways
    • B63C3/06—Launching or hauling-out by landborne slipways; Slipways by vertical movement of vessel, i.e. by crane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C3/00—Launching or hauling-out by landborne slipways; Slipways
    • B63C3/12—Launching or hauling-out by landborne slipways; Slipways using cradles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02C—SHIP-LIFTING DEVICES OR MECHANISMS
    • E02C5/00—Mechanisms for lifting ships vertically

Definitions

  • the present invention relates to a device for lifting the lifting platform of an installation for landing or watering ships.
  • the present invention relates to a lifting device which avoids the installation of winches on one of the two longitudinal edges of the wedge so as to clear the ground which is limited by this edge.
  • the vessels can then be moved between the lifting platform and the ground, passing over the ledge not comprising the winches.
  • the hoisting winches are mounted on the other longitudinal edge of the hold, on the opposite side to that above which the ships pass when they are evacuated and brought.
  • the device according to the invention is suitable for lifting, in a hold, an elevating platform using cables hooked to fixed points and maneuvered by hoisting winches after winding on pulleys mounted on the platform and on pulleys mounted fixed on the wedge, and it is essentially characterized by the fact that the fixed hooking points are arranged on one side of the refit wedge and that the hoisting winches are arranged on the other side of the wedge, each cable being wound up 'at least one pulley mounted on one side of the platform and under a pulley mounted on the other side in a horizontal strand and perpendicular to the longitudinal axis of the platform.
  • At least one of the cables forms a single strand between its point of attachment and a pulley of the platform and is wound, on the side of the winches, on at least one pulley d '' a lower block fixed to the platform and on at least one pulley of an upper block fixed to the upper part of the wedge and on the other hand at least one other cable is wound from the side of the hooking point on at least a pulley of a lower block fixed to the platform and on at least one pulley of an upper block fixed to the upper part of the block and forms, on the side of the winches, a single vertical strand between a block of the platform and the winding winch.
  • the installation represented by FIGS. 1 and 2 comprises an elevating platform 2 which extends horizontally so as to be able to support a ship.
  • This platform is moved vertically between the sides 12 and 13 of the dry dock 1 which is hollow relative to the ground 11 on which the ships can be moved dry.
  • the vertical movement of the platform is carried out by the lifting device according to the invention between a low position where the platform is immersed and a high position where the top of the platform is flush with the ground.
  • the lifting platform is suspended from cables 4 which are maneuvered by hoisting winches 3. These winches are anchored to the ground 11 surrounding the dry dock.
  • the platform 2 is equipped on each of its two longitudinal sides with pulleys and blocks 5 and 6.
  • the pulleys 5 and 6 rotate respectively around the axes 51 and 61 which are parallel to the longitudinal axis of the platform.
  • the cables 4 are hooked to fixed points 41, 42 etc ... These attachment points are located at a level higher than the high position of the platform, near the ground level 11. They are located near the longitudinal edge 14 of the refit block, the hoisting winches being arranged near the other longitudinal edge 15 of the block.
  • the cables are wound on upper pulleys 7 arranged on the side of the fixed attachment points. These pulleys 7 rotate around a fixed axis 71 parallel to the longitudinal axis of the platform.
  • the cables are also wound on pulleys 8 arranged on the side of the hoisting winches. These pulleys rotate around a fixed axis 81 parallel to the longitudinal axis of the platform.
  • the axes of pulleys 7 and 8 are located substantially above the p OSi high tion near the flanges respectively 14 and platform 15.
  • the upper pulleys 7 disposed on the opposite side to the winches are disposed substantially at or below from the ground 11 so as to allow the movement of the ship perpendicular to the longitudinal axis of the platform.
  • the upper pulleys 8 can be located at a higher level than the ground level 11.
  • the axis 51 of the pulleys 5 of the platform and the axis 71 of the fixed upper pulleys are located in a substantially vertical plane.
  • the axis 61 of the platform pulleys6 and the axis 81 of the fixed upper pulleys are located in a substantially vertical plane. The winches 3 are then located outside with respect to this latter vertical plane.
  • the winches 3 are installed in pairs on the floor of the hold near the edge 15 opposite to the direction of evacuation of the ships indicated by an arrow 9 in FIG. 1. Each pair of winches is associated with the same main cross member of the platform. Each pair of winches can consist either of two identical winches or of a device towing two cables. Hoisting winches are of the wire rope type and can be electrically, hydraulically or pneumatically operated. The cable can be driven by the winch by drum or by any other traction system.
  • the cables 4 are stretched between the pulleys 5 and 6 by forming horizontal breaks 43 substantially perpendicular to the longitudinal axis of the platform.
  • Each horizontal strand is preceded upstream by a pulley 5 or 6, with a single substantially vertical strand.
  • This strand is suspended from a winch or a hooking point and is followed on the other hand, downstream from the opposite pulley 5 or 6, by a block.
  • the cable is wound downstream of the horizontal strand, alter natively on the pulleys of a fixed upper block and on the pulleys of a lower block fitted to the platform.
  • the end of the muffle side cable is suspended from a winch or a hooking point.
  • the horizontal cable strand is preceded either by a single strand or by hauling.
  • the cable 4 starting from the fixed attachment point 41 descends, by a substantially vertical strand, to the lower pulley 5 of the platform. After being wound on the pulley 5, on the attachment point side, it is wound once on a pulley 6 of the platform block. Between the pulley 5 and the pulley 6 it forms a horizontal strand 43. From the lower pulley 6 of the block, the cable rises, by a substantially vertical strand to a pulley 8 of the fixed block located on the side of the winches. The cable forms a number of loops between the pulleys of the lower platform block and the pulleys of the fixed upper block. The end of the cable located downstream from the haulage is towed by a winch 3.
  • the cable 4 starting from the fixed point 42 descends, by a substantially vertical strand, to a pulley 5 of the movable block of the platform. It is wound up by forming a number of loops, on the pulleys of the movable lower block and on the pulleys 7 of the fixed upper block. From the pulley 5 of the movable block of the platform, the cable is wound on a pulley 6, forming a strand 43 horizontal and perpendicular to the longitudinal axis of the platform. From the horizontal strand the cable is wound on the pulley 6 before being pulled directly by a winch 3.
  • the hauling formed on the side of the attachment points - by pulleys 5 and the pulleys 7 is identical to the hauling formed - on the winch side - by pulleys 6 and the pulleys 8.
  • Cables and pulleys could be replaced with chains and sprockets.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The apparatus according to the invention is designed for the lifting into a dry dock of a lifting platform (2) by means of cables (4) secured at fixed points (41, 42) and manoeuvred by hoisting winches (3) after being wound onto pulleys (5, 6) mounted on the platform (2) and onto pulleys (7, 8) mounted in fixed positions on the dry dock, and is essentially characterised in that the fixed securing points (41, 42) are disposed on one side of the dry dock and in that the hoisting winches (3) are disposed on the other side of the dry dock, each cable (4) winding under at least one pulley mounted on one side of the platform (2) and under one pulley mounted on the other side, forming a horizontal strand (43) perpendicular to the longitudinal axis of the platform (2). <IMAGE>

Description

La présente invention se rapporte a un dispositif de levage de la plate-forme élévatrice d'une installation de mise à terre ou à l'eau de navires.The present invention relates to a device for lifting the lifting platform of an installation for landing or watering ships.

On connaît des installations de mise à terre ou de mise à l'eau de navires comportant une plateforme élévatrice qui peut être déplacée verticalement dans une cale de radoub. La plateforme élévatrice est suspendue à des câbles qui sont manoeuvrés par des treuils de levage. Lorsque le navire est à flot, la plateforme élévatrice est immergée sous le navire. Ce dernier vient reposer sur la plateforme lorsque celle-ci est hissée de la position basse immergée jusqu'à la position haute. Le navire peut ainsi être élevé de la position à flot jusqu'à la position à sec au niveau du sol et vice versa. Il peut ensuite être déplacé horizontalement jusqu'à une position de garage.There are known installations for landing or launching ships comprising a lifting platform which can be moved vertically in a dry dock. The lifting platform is suspended from cables which are operated by lifting winches. When the ship is afloat, the lifting platform is submerged under the ship. The latter comes to rest on the platform when the latter is hoisted from the submerged low position to the high position. The vessel can thus be raised from the afloat position to the dry position at ground level and vice versa. It can then be moved horizontally to a garage position.

Dans l'installation de ce type que décrit le brevet français 1.241. 681, les treuils de hissage sont montés sur les deux c8tés longitudinaux de la cale en quantités égales. Lorsque l'on veut, dans une installation de ce type, déplacer le navire, perpendiculairement à l'axe longitudinal de la plateforme élévatrice, il faut enterrer les treuils du c8té du bord d'évacuation du navire, sous le niveau du sol de la cale de radoub. Les treuils de hissage se trouvent alors très près du niveau de l'eau et sont même parfois immergés. Lorsque l'on utilise cette disposition il faut alors résoudre les problèmes de fixation et d'étanchéité. Par ailleurs l'accès aux treuils est relativement difficile ce qui complique l'entretien.In the installation of this type described in French patent 1,241. 681, the hoisting winches are mounted on the two longitudinal sides of the hold in equal quantities. When it is desired, in an installation of this type, to move the ship, perpendicular to the longitudinal axis of the lifting platform, it is necessary to bury the winches on the side of the evacuation edge of the ship, below the ground level of the refit wedge. The hoisting winches are then very close to the water level and are sometimes even submerged. When using this arrangement, then the fixing and sealing problems have to be solved. Furthermore, access to the winches is relatively difficult, which complicates maintenance.

La présente invention a pour objet un dispositif de levage qui évite l'implantation des treuils sur un des deux rebords longitudinaux de la cale de manière à dégager le sol qui est limité par ce rebord. Les navires peuvent alors être déplacés entre la plateforme élévatrice et le sol, en passant au-dessus du rebord ne comportant par les treuils. Les treuils de hissage sont montés sur l'autre rebord longitudinal de la cale, du c8té opposé à celui au-dessus duquel passent les navires lorsqu'ils sont évacués et amenés.The present invention relates to a lifting device which avoids the installation of winches on one of the two longitudinal edges of the wedge so as to clear the ground which is limited by this edge. The vessels can then be moved between the lifting platform and the ground, passing over the ledge not comprising the winches. The hoisting winches are mounted on the other longitudinal edge of the hold, on the opposite side to that above which the ships pass when they are evacuated and brought.

Le dispositif selon l'invention est adapté au levage, dans une cale, d'une plateforme élévatrice à l'aide des câbles accrochés à des points fixes et manoeuvrés par des treuils de hissage après enroulement sur des poulies montées sur la plateforme et sur des poulies montées fixes sur la cale, et il est essentiellement caractérisé par le fait que les points fixes d'accrochage sont disposés d'un côté de la cale de radoub et que les treuils de hissage sont disposés de l'autre côté de la cale, chaque câble s'enroulant'au moins une poulie montée d'un côté de la plateforme et sous une poulie montée de l'autre côté en un brin horizontal et perpendiculaire à l'axe longitudinal de la plateforme.The device according to the invention is suitable for lifting, in a hold, an elevating platform using cables hooked to fixed points and maneuvered by hoisting winches after winding on pulleys mounted on the platform and on pulleys mounted fixed on the wedge, and it is essentially characterized by the fact that the fixed hooking points are arranged on one side of the refit wedge and that the hoisting winches are arranged on the other side of the wedge, each cable being wound up 'at least one pulley mounted on one side of the platform and under a pulley mounted on the other side in a horizontal strand and perpendicular to the longitudinal axis of the platform.

Selon une caractéristique de l'invention, au moins l'un des câble, forme un seul brin entre son point d'accrochage et une poulie de la plate- forme et s'enroule, du côté des treuils,sur au moins une poulie d'un moufle inférieur fixé à la plateforme et sur au moins une poulie d'un moufle supérieur fixé à la partie supérieure de la cale et d'autre part au moins un autre câble s'enroule du c8té du point d'accrochage sur au moins une poulie d'un moufle inférieur fixé à la plateforme et sur au moins une poulie d'un moufle supérieur fixé à la partie supérieure de la cale et forme, du c8té des treuils, un seul brin vertical entre une poulie de la plateforme et le treuil d'enroulement.According to a characteristic of the invention, at least one of the cables, forms a single strand between its point of attachment and a pulley of the platform and is wound, on the side of the winches, on at least one pulley d '' a lower block fixed to the platform and on at least one pulley of an upper block fixed to the upper part of the wedge and on the other hand at least one other cable is wound from the side of the hooking point on at least a pulley of a lower block fixed to the platform and on at least one pulley of an upper block fixed to the upper part of the block and forms, on the side of the winches, a single vertical strand between a block of the platform and the winding winch.

L'invention va maintenant être décrite avec plus de détails en se référant à un mode de réalisation donné à titre d'exemple et représenté par les dessins annexés.

  • La figure 1 représente une coupe verticale d'une installation de mise à terre du navires équipée du dispositif de levage conforme à l'invention.
  • La figure 2 représente schématiquement le mouflage du dispositif de levage selon l'invention.
The invention will now be described in more detail with reference to an embodiment given by way of example and represented by the accompanying drawings.
  • FIG. 1 represents a vertical section of an installation for earthing ships equipped with the lifting device according to the invention.
  • FIG. 2 schematically represents the hauling of the lifting device according to the invention.

L'installation représentée par les figures 1 et 2 comporte une plate- forme élevatrice 2 qui s'étend horizontalement de manière à pouvoir supporter un navire. Cette plateforme est déplacée verticalement entre les flancs 12 et 13 de la cale de radoub 1 qui est en creux par rapport au sol 11 sur lequel on peut déplacer les navires à sec. Le déplacement vertical de la plateforme est effectué par le dispositif de levage selon l'invention entre une position basse où la plateforme est immergée et une position haute où le dessus de la plateforme affleure au niveau du sol. La plateforme élévatrice est suspendue à des câbles 4 qui sont manoeuvrés par des treuils de hissage 3. Ces treuils sont ancrés au sol 11 entourant la cale de radoub. La plateforme 2 est équipée sur chacun de ses deux c8tés longitudinaux de poulies et de moufles 5 et 6. Les poulies 5 et 6 tournent respectivement autour des axes 51 et 61 qui sont parallèles à l'axe longitudinal de la plateforme.The installation represented by FIGS. 1 and 2 comprises an elevating platform 2 which extends horizontally so as to be able to support a ship. This platform is moved vertically between the sides 12 and 13 of the dry dock 1 which is hollow relative to the ground 11 on which the ships can be moved dry. The vertical movement of the platform is carried out by the lifting device according to the invention between a low position where the platform is immersed and a high position where the top of the platform is flush with the ground. The lifting platform is suspended from cables 4 which are maneuvered by hoisting winches 3. These winches are anchored to the ground 11 surrounding the dry dock. The platform 2 is equipped on each of its two longitudinal sides with pulleys and blocks 5 and 6. The pulleys 5 and 6 rotate respectively around the axes 51 and 61 which are parallel to the longitudinal axis of the platform.

Les câbles 4 sont accrochés à des points fixes 41, 42 etc... Ces points d'accrochage sont situés à un niveau supérieur à la position haute de la plateforme, près du niveau du sol 11. Ils sont situés près du rebord longitudinal 14 de la cale de radoub, les treuils de hissage étant disposés près de l'autre rebord longitudinal 15 de la cale. Les câbles s'enroulent sur des poulies supérieures 7 disposées du côte des points d'accrochage fixes. Ces poulies 7 tournent autour d'un axe fixe 71 parallèle à l'axe longitudinal de la plateforme. Les câbles s'enroulent par ailleurs sur des poulies 8 disposées du côté des treuils de hissage. Ces poulies tournent autour d'un axe fixe 81 parallèle à l'axe longitudinal de la plate- forme. Les axes des poulies 7 et 8 sont situés sensiblement au-dessus de la posi- tion haute de la plateforme respectivement près des rebords 14 et 15. Les poulies supérieures 7 disposées du côté opposé aux treuils sont disposées sensiblement au niveau ou au-dessous du sol 11 de manière à permettre le déplacement du navire perpendiculairement à l'axe longitudinal de la plateforme. Les poulies supérieures 8 peuvent être situées à un niveau plus élevé que le niveau du sol 11.The cables 4 are hooked to fixed points 41, 42 etc ... These attachment points are located at a level higher than the high position of the platform, near the ground level 11. They are located near the longitudinal edge 14 of the refit block, the hoisting winches being arranged near the other longitudinal edge 15 of the block. The cables are wound on upper pulleys 7 arranged on the side of the fixed attachment points. These pulleys 7 rotate around a fixed axis 71 parallel to the longitudinal axis of the platform. The cables are also wound on pulleys 8 arranged on the side of the hoisting winches. These pulleys rotate around a fixed axis 81 parallel to the longitudinal axis of the platform. The axes of pulleys 7 and 8 are located substantially above the p OSi high tion near the flanges respectively 14 and platform 15. The upper pulleys 7 disposed on the opposite side to the winches are disposed substantially at or below from the ground 11 so as to allow the movement of the ship perpendicular to the longitudinal axis of the platform. The upper pulleys 8 can be located at a higher level than the ground level 11.

De préférence l'axe 51 des poulies 5 de la plateforme et l'axe 71 des poulies supérieures fixes sont situés dans un plan sensiblement vertical. De même l'axe 61 des poulies6de la plateforme et l'axe 81 des poulies supérieures fixes sont situés dans un plan sensiblement vertical. Les treuils 3 sont alors situés à l'extérieur par rapport à ce dernier plan vertical.Preferably the axis 51 of the pulleys 5 of the platform and the axis 71 of the fixed upper pulleys are located in a substantially vertical plane. Similarly, the axis 61 of the platform pulleys6 and the axis 81 of the fixed upper pulleys are located in a substantially vertical plane. The winches 3 are then located outside with respect to this latter vertical plane.

Les treuils 3 sont installés par paires sur le sol de la cale près du rebord 15 opposé au sens d'évacuation des navires signalé par une flèche 9 sur la figure 1. Chaque paire de treuils est associée à une même traverse principale de la plateforme. Chaque paire de treuils peut être constituée soit de deux treuils identiques soit d'un dispositif tractant deux câbles. Les treuils de hissage sont du type à câble métallique et peuvent être à commande électrique, hydraulique ou pneumatique. L'entraînement du câble par le treuil peut être effectué parut tambour ou par tout autre système de traction.The winches 3 are installed in pairs on the floor of the hold near the edge 15 opposite to the direction of evacuation of the ships indicated by an arrow 9 in FIG. 1. Each pair of winches is associated with the same main cross member of the platform. Each pair of winches can consist either of two identical winches or of a device towing two cables. Hoisting winches are of the wire rope type and can be electrically, hydraulically or pneumatically operated. The cable can be driven by the winch by drum or by any other traction system.

Les câbles 4 sont tendus entre les poulies 5 et 6 en formant des bris 43 horizontaux sensiblement perpendiculaires à l'axe longitudinal de la plateforme. Chaque brin horizontal est précédé en amont d'une poulie 5 ou 6, d'm seul brin sensiblement vertical. Ce brin est suspendu à un treuil ou à un point d'accrochage et est suivi d'autre part, en aval de la poulie 5 ou 6 opposée,d'un moufle. Le câble s'enroule en aval du brin horizontal,alternativement sur les poulies d'un moufle supérieur fixe et sur les poulies d'un moufle inférieur équipant la plateforme. Le bout du câble coté moufle est suspendu à un treuil ou à un point d'accrochage. En partant d'un point d'accrochage, le brin de câble horizontal est précédé soit par un seul brin soit par un mouflage. Cette disposition est alternative. Le câble 4 partant du point fixe d'accrochage 41 descend, par un brin sensiblement vertical, jusqu'à la poulie inférieure 5 de la plateforme. Après s'être enroulé sur la poulie 5, côté point d'accrochage, il s'enroule une fois sur une poulie 6 du moufle de la plateforme. Entre la poulie 5 et la poulie 6 il forme un brin horizontal 43. De la poulie inférieure 6 du moufle , le câble monte, par un brin sensiblement vertical jusqu'à une poulie 8 du moufle fixe situé du côté des treuils. Le câble forme un certain nombre de boucles entre les poulies du moufle inférieurmobi- le de la plateforme et les poulies du moufle supérieur fixe. Le bout de câble situé en aval du mouflage est tracté par un treuil 3.The cables 4 are stretched between the pulleys 5 and 6 by forming horizontal breaks 43 substantially perpendicular to the longitudinal axis of the platform. Each horizontal strand is preceded upstream by a pulley 5 or 6, with a single substantially vertical strand. This strand is suspended from a winch or a hooking point and is followed on the other hand, downstream from the opposite pulley 5 or 6, by a block. The cable is wound downstream of the horizontal strand, alter natively on the pulleys of a fixed upper block and on the pulleys of a lower block fitted to the platform. The end of the muffle side cable is suspended from a winch or a hooking point. Starting from a hooking point, the horizontal cable strand is preceded either by a single strand or by hauling. This provision is an alternative. The cable 4 starting from the fixed attachment point 41 descends, by a substantially vertical strand, to the lower pulley 5 of the platform. After being wound on the pulley 5, on the attachment point side, it is wound once on a pulley 6 of the platform block. Between the pulley 5 and the pulley 6 it forms a horizontal strand 43. From the lower pulley 6 of the block, the cable rises, by a substantially vertical strand to a pulley 8 of the fixed block located on the side of the winches. The cable forms a number of loops between the pulleys of the lower platform block and the pulleys of the fixed upper block. The end of the cable located downstream from the haulage is towed by a winch 3.

Le câble 4 partant du point fixe 42 descend, par un brin sensiblement vertical, jusqu'à une poulie 5 du moufle mobile de la plateforme. Il s'enroule en formant un certain nombre de boucles, sur les poulies du moufle inférieur mobile et sur les poulies 7 du moufle supérieur fixe. De la poulie 5 du moufle mobile de la plateforme le câble s'enroule sur une poulie 6 en formant un brin 43 horizontal et perpendiculaire à l'axe longitudinal de la plateforme. A partir du brin horizontal le câble s'enroule sur la poulie 6 avant d'être tracté directement par un treuil 3.The cable 4 starting from the fixed point 42 descends, by a substantially vertical strand, to a pulley 5 of the movable block of the platform. It is wound up by forming a number of loops, on the pulleys of the movable lower block and on the pulleys 7 of the fixed upper block. From the pulley 5 of the movable block of the platform, the cable is wound on a pulley 6, forming a strand 43 horizontal and perpendicular to the longitudinal axis of the platform. From the horizontal strand the cable is wound on the pulley 6 before being pulled directly by a winch 3.

Le mouflage formé du côté des points d'accrochage - par des poulies 5 et les poulies 7 est identique au mouflage formé - côté treuils - par des poulies 6 et 1es poulies 8.The hauling formed on the side of the attachment points - by pulleys 5 and the pulleys 7 is identical to the hauling formed - on the winch side - by pulleys 6 and the pulleys 8.

Il est tien entendu que l'on peut; sans sortir du cadre de l'invention, imaginer des variantes et des perfectionnements de détails et envisager l'emploi de moyens équivalents.It is understood that you can; without departing from the scope of the invention, imagine variants and refinements of details and envisage the use of equivalent means.

Les câbles et les poulies pourraient être remplacées par des chaînes et des roues dentées.Cables and pulleys could be replaced with chains and sprockets.

Claims (2)

1.- Dispositif de levage d'une plateforme (2) dans une cale de radoub d'une installation de mise à terre ou à l'eau, à l'aide de câbles (4) accrochés à des points fixes (41-42) et manoeuvrés par des treuils de hissage (3) après enroulement sur des poulies (5-6) montées sur la plateforme et sur des poulies (7-8) montées fixes à-la partie supérieure de la cale, caractérisé par le fait que les points fixes d'accrochage (41-42) sont disposés d'un côté de la cale de radoub et que les treuils de hissage (3) sont disposés de l'autre côté de la cale, chaque câble (4) s'enroulant sous au moins une poulie (5) montée d'un côté de la plateforme et sous une poulie (6) montée de l'autre côté en formant un brin horizontal et perpendiculaire à l'axe longitudinal. 1 .- Device for lifting a platform (2) in a refit block of an earth or water installation, using cables (4) hooked to fixed points (41-42 ) and maneuvered by hoists (3) after winding on pulleys (5-6) mounted on the platform and on pulleys (7-8) mounted fixed to the upper part of the wedge, characterized in that the fixed attachment points (41-42) are arranged on one side of the refit block and that the hoists (3) are arranged on the other side of the block, each cable (4) being wound up under at least one pulley (5) mounted on one side of the platform and under a pulley (6) mounted on the other side by forming a horizontal strand and perpendicular to the longitudinal axis. 2.- Dispositif selon la revendication 1, caractérisé par le fait que d'une part au moins l'un des câbles forme un seul brin vertical entre son point d'accrochage (41) et une poulie de la plateforme (5) et s'enroule du côté des treuils (3) sur au moins une poulie (6) d'un moufle inférieur mobile fixé à la plateforme et sur au moins une poulie (8) d'un moufle supérieur fixé à la partie supérieure de la cale et que d'autre part un autre câble s'enroule du point d'accrochage (42) sur au moins une poulie (5) d'un moufle inférieur mobile fixé à la plateforme et sur au moins une poulie (7) d'un moufle supérieur fixé à la partie supérieure de la cale et forme du côté des treuils.un seul brin vertical entre une poulie (6) de la plateforme et le treuil (3) d'enroulement.2.- Device according to claim 1, characterized in that on the one hand at least one of the cables forms a single vertical strand between its point of attachment (41) and a pulley of the platform (5) and s '' wound on the side of the winches (3) on at least one pulley (6) of a movable lower block fixed to the platform and on at least one pulley (8) of an upper block fixed to the upper part of the wedge and that on the other hand another cable is wound from the hooking point (42) on at least one pulley (5) of a movable lower block mounted on the platform and on at least one pulley (7) of a block upper fixed to the upper part of the wedge and forms on the side of the winches. a single vertical strand between a pulley (6) of the platform and the winding winch (3).
EP81400426A 1980-03-19 1981-03-19 Lifting apparatus for the platform of a launching or hauling-out installation for ships Withdrawn EP0036375A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8006125 1980-03-19
FR8006125A FR2478571A1 (en) 1980-03-19 1980-03-19 DEVICE FOR LIFTING THE PLATFORM OF A GROUND OR WATER INSTALLATION OF SHIPS

Publications (1)

Publication Number Publication Date
EP0036375A1 true EP0036375A1 (en) 1981-09-23

Family

ID=9239838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81400426A Withdrawn EP0036375A1 (en) 1980-03-19 1981-03-19 Lifting apparatus for the platform of a launching or hauling-out installation for ships

Country Status (2)

Country Link
EP (1) EP0036375A1 (en)
FR (1) FR2478571A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102505676A (en) * 2011-11-02 2012-06-20 西安航天自动化股份有限公司 Hydraulic driving system of hydraulic-driven ship lift
CN106092629A (en) * 2016-06-24 2016-11-09 中国长江三峡集团公司 Shui Man railway carriage or compartment, ship lift ship railway carriage or compartment performance test method
CN109914374A (en) * 2019-04-25 2019-06-21 黄河勘测规划设计研究院有限公司 The bridge rail ferryboat device in river is crossed in Canal Waterway

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU175221U1 (en) * 2017-03-21 2017-11-28 ЗАО "Конструкторско-технологическое бюро "Технорос" SHIP LIFT

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777691A (en) * 1971-06-25 1973-12-11 W Beale Marine elevator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1145939A (en) * 1956-03-22 1957-10-30 Travail Des Metaux Soc Et Lifting or hauling device
FR1241681A (en) * 1958-12-03 1960-09-16 Dade Drydock Corp Refit dock
US3504502A (en) * 1967-11-06 1970-04-07 Luther H Blount Lift dock for a water borne vessel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777691A (en) * 1971-06-25 1973-12-11 W Beale Marine elevator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102505676A (en) * 2011-11-02 2012-06-20 西安航天自动化股份有限公司 Hydraulic driving system of hydraulic-driven ship lift
CN106092629A (en) * 2016-06-24 2016-11-09 中国长江三峡集团公司 Shui Man railway carriage or compartment, ship lift ship railway carriage or compartment performance test method
CN106092629B (en) * 2016-06-24 2019-02-12 中国长江三峡集团公司 The ship lift ship compartment compartment Shui Man performance test method
CN109914374A (en) * 2019-04-25 2019-06-21 黄河勘测规划设计研究院有限公司 The bridge rail ferryboat device in river is crossed in Canal Waterway

Also Published As

Publication number Publication date
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