EP1848655B1 - Device for handling a structure that is being lifted or lowered - Google Patents

Device for handling a structure that is being lifted or lowered Download PDF

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Publication number
EP1848655B1
EP1848655B1 EP06709452A EP06709452A EP1848655B1 EP 1848655 B1 EP1848655 B1 EP 1848655B1 EP 06709452 A EP06709452 A EP 06709452A EP 06709452 A EP06709452 A EP 06709452A EP 1848655 B1 EP1848655 B1 EP 1848655B1
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EP
European Patent Office
Prior art keywords
pinion
toothed wheel
rack
motorised
outer ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP06709452A
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German (de)
French (fr)
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EP1848655A1 (en
Inventor
Franck Machu
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NOV BLM SAS
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Hydralift BLM SA
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Publication date
Application filed by Hydralift BLM SA filed Critical Hydralift BLM SA
Priority to SI200630193T priority Critical patent/SI1848655T1/en
Priority to PL06709452T priority patent/PL1848655T3/en
Publication of EP1848655A1 publication Critical patent/EP1848655A1/en
Application granted granted Critical
Publication of EP1848655B1 publication Critical patent/EP1848655B1/en
Priority to CY20091100118T priority patent/CY1108755T1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
    • E02B17/0818—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with racks actuated by pinions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/02—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F2700/00—Lifting apparatus
    • B66F2700/03—Lifting jacks with pinion and rack

Definitions

  • the present invention relates to a device for raising or lowering a structure, for example a platform of the offshore platform type.
  • the document FR-A-2,753,466 describes such a device.
  • Offshore drilling rigs typically have several fixed vertical legs with racks.
  • the lifting and lowering installations, integral with the mobile platform, comprise motorized gears which roll on these racks to ensure the maneuvers of up and down.
  • the present invention aims to overcome these disadvantages by providing a maneuvering device of simple structure, compact and of limited weight, which further provides a good distribution of efforts.
  • the maneuvering device comprises a symmetrical rack, cut on both sides, sandwiched between two pinions of horizontal axes axis and arranged in the same horizontal plane, or substantially in the same horizontal plane, driven in opposite directions by the same engine.
  • the output shaft of the single motor transmits the motor movement to a primary gear system whose output shaft corresponds to the input shaft of a planetary differential secondary gearbox comprising a sun gear, satellite gears and an outer crown; the carrier of said differential secondary gearbox drives one of said drive gears on one side of said double rack, and the outer ring gear of said planetary gearbox drives, by suitable mechanical means, a toothed gear loaded itself to drive the second pinion on the other side of said double rack.
  • the motorized gears are synchronized in effort and speed. Note that it is possible to stack different identical or similar devices to increase the lifting capacity.
  • the outer ring gear of the planetary gear is preferably externally toothed, and the mechanical connecting means between said outer ring gear and the drive gear of the second pinion gear consist of a drive chain or one or more crazy gears.
  • the pinion of the rack integral with the gear driven by the secondary gear is advantageously equipped with a load measuring system, preferably placed on the side of said gear.
  • the maneuvering device 1 illustrated on the figure 1 comprises mainly two pinions A and B rotated by the same motor 2 and which sandwich a double C rack.
  • the manipulated structure can be a mobile platform, which has not been represented as a simplification measure.
  • the support of the double rack C for example a vertical leg, has also not been shown.
  • the operating device 1 comprises a motor 2 of the hydraulic or electrical type
  • the output shaft 3 corresponds to the input shaft of a primary reduction system, shown diagrammatically at 4, which can be parallel trains or epicyclic gear trains.
  • the output shaft 5 of the primary gearbox 4 corresponds to the input shaft of a secondary gearbox 6 of planetary differential type with two outputs.
  • the solar input gear 7 of this secondary gear 6 is directly driven by the input shaft 5.
  • This sun gear 7 drives three planet gears 8 connected by a planet carrier 9 whose output shaft 10 directly drives the first pinion A which attacks one of the sides 12 of the fixed double rack C.
  • the planet gears 8 drive the outer ring 14 of the secondary gear 6 via an internal toothing 15, and the external toothing 16 of the ring gear 14 drives a toothed wheel 17 via a transmission chain 18 ; this toothed wheel 17 directly drives the second driving pinion B via a shaft 21.
  • This second pinion B attacks the side 22 of the double rack 13.
  • the two pinions A and B which attack the two opposite sides 12 and 22 of the rack C have horizontal axes of rotation which are situated in the same horizontal plane, or approximately in the same horizontal plane.
  • the reduction ratios between the toothed wheel 17 and the outer ring 14 of the secondary gear 6 are such that the forces on the two gears A and B are similar.
  • the two outputs of the planetary gear 6 have a differential movement and rotate in the opposite direction. These two parts develop rigorously proportional efforts, one being the reaction of the other. This feature is a significant improvement over some previous achievements for which the efforts on the two drive gears vary according to the position and the lateral displacement of the rack.
  • a measuring system can be provided on one of the two drive pinions A , B of the double rack C , more advantageously on the pinion B driven by the gear wheel 17.
  • This measuring system is advantageously placed on the side of the toothed wheel 17, inside the hollow axis 21 provided.
  • the structure of the lifting system defined above occupies a substantially reduced volume compared to previous equipment; depending on the type of device, space savings can reach 30%.
  • the figure 2 shows an alternative embodiment of the maneuvering device illustrated on the figure 1 .
  • the transmission of the movement between the outer ring gear 14 of the secondary gear 6 and the toothed wheel 17 is carried out by an idle gear identified 24. All other mechanical elements are identical to those of the figure 1 and work the same way.

Abstract

The device has a motorization whose output shaft corresponds to an input shaft of a primary reducing gear system (4) whose output shaft corresponds to an input shaft of a secondary planetary differential reducing system (6). Planet carrier of the system (6) drives a pinion on one side of a rack. An outer tooth of an outer ring gear of the system (6) drives a toothed wheel (17) that then drives another pinion on another side of the rack. An independent claim is also included for an installation for handling a structure in lifting or lowering with respect to a support, including handling devices.

Description

La présente invention concerne un dispositif pour élever ou abaisser une structure, par exemple une plateforme du genre plateforme off-shore. Le document FR-A-2 753 466 décrit un tel dispositif.The present invention relates to a device for raising or lowering a structure, for example a platform of the offshore platform type. The document FR-A-2,753,466 describes such a device.

Les plateformes de forage en mer comportent généralement plusieurs jambes verticales fixes munies de crémaillères. Les installations de levage et d'abaissement, solidaires de la plateforme mobile, comportent des pignons motorisés qui roulent sur ces crémaillères pour assurer les manoeuvres de montée et de descente.Offshore drilling rigs typically have several fixed vertical legs with racks. The lifting and lowering installations, integral with the mobile platform, comprise motorized gears which roll on these racks to ensure the maneuvers of up and down.

Les dispositifs de manoeuvre connus à ce jour sont généralement complexes et encombrants. En outre, dans certaines configurations, les efforts sur les pignons varient suivant la position et le déplacement latéral de la crémaillère.Maneuvering devices known to date are generally complex and bulky. In addition, in certain configurations, the forces on the gears vary according to the position and the lateral displacement of the rack.

La présente invention a pour objet de pallier à ces inconvénients en proposant un dispositif de manoeuvre de structure simple, peu encombrante et de poids limité, qui en outre confère une bonne répartition des efforts.The present invention aims to overcome these disadvantages by providing a maneuvering device of simple structure, compact and of limited weight, which further provides a good distribution of efforts.

Conformément à la présente invention, le dispositif de manoeuvre comprend une crémaillère symétrique, taillée des deux côtés, prise en sandwich entre deux pignons d'attaque d'axes horizontaux et disposés dans le même plan horizontal, ou sensiblement dans le même plan horizontal, entraînés dans des sens contraires par une même motorisation. L'arbre de sortie de la motorisation unique transmet le mouvement moteur à un système réducteur primaire dont l'arbre de sortie correspond à l'arbre d'entrée d'un réducteur secondaire de type différentiel planétaire comprenant un pignon solaire, des pignons satellites et une couronne extérieure ; le porte-satellite dudit réducteur secondaire différentiel entraîne l'un desdits pignons d'attaque sur l'un des côtés de ladite double crémaillère, et la couronne extérieure dudit réducteur planétaire entraîne, par des moyens mécaniques appropriés, une roue dentée chargée elle-même d'entraîner le second pignon d'attaque, sur l'autre côté de ladite double crémaillère.
De la sorte, les pignons motorisés sont synchronisés en efforts et en vitesse.
On notera qu'il est possible d'empiler différents dispositifs identiques ou similaires pour augmenter la capacité de levage.According to the present invention, the maneuvering device comprises a symmetrical rack, cut on both sides, sandwiched between two pinions of horizontal axes axis and arranged in the same horizontal plane, or substantially in the same horizontal plane, driven in opposite directions by the same engine. The output shaft of the single motor transmits the motor movement to a primary gear system whose output shaft corresponds to the input shaft of a planetary differential secondary gearbox comprising a sun gear, satellite gears and an outer crown; the carrier of said differential secondary gearbox drives one of said drive gears on one side of said double rack, and the outer ring gear of said planetary gearbox drives, by suitable mechanical means, a toothed gear loaded itself to drive the second pinion on the other side of said double rack.
In this way, the motorized gears are synchronized in effort and speed.
Note that it is possible to stack different identical or similar devices to increase the lifting capacity.

La couronne extérieure du réducteur planétaire est de préférence dentée extérieurement, et les moyens mécaniques de liaison entre ladite couronne extérieure et la roue dentée d'entraînement du second pignon d'attaque sont constitués d'une chaîne d'entraînement ou d'un ou plusieurs pignons fous.The outer ring gear of the planetary gear is preferably externally toothed, and the mechanical connecting means between said outer ring gear and the drive gear of the second pinion gear consist of a drive chain or one or more crazy gears.

En outre, le pignon d'attaque de la crémaillère solidaire de la roue dentée entraînée par le réducteur secondaire est avantageusement équipée d'un système de mesure de charge, de préférence placé du côté de ladite roue dentée.In addition, the pinion of the rack integral with the gear driven by the secondary gear is advantageously equipped with a load measuring system, preferably placed on the side of said gear.

L'invention sera encore illustrée, sans être aucunement limitée par la description suivante de deux modes de réalisation particuliers, donnés uniquement à titre d'exemples et représentés sur les dessins annexés dans lesquels :

  • la figure 1 est une vue schématique d'un premier mode de réalisation du dispositif de manoeuvre conforme à l'invention, dans lequel le réducteur secondaire entraîne la roue dentée du second pignon d'attaque par l'intermédiaire d'une chaîne ;
  • la figure 2 illustre une variante de réalisation du dispositif de manoeuvre, dans lequel le système mécanique de liaison entre le réducteur secondaire et la roue d'entraînement du second pignon d'attaque est constitué d'un pignon fou.
The invention will be further illustrated without being in any way limited by the following description of two particular embodiments, given solely by way of example and represented in the appended drawings in which:
  • the figure 1 is a schematic view of a first embodiment of the operating device according to the invention, wherein the secondary gear drives the gear of the second pinion gear by means of a chain;
  • the figure 2 illustrates an alternative embodiment of the operating device, wherein the mechanical system of connection between the secondary gear and the drive wheel of the second pinion gear consists of a pinion.

Le dispositif de manoeuvre 1 illustré sur la figure 1 comprend principalement deux pignons A et B entraînés en rotation par une même motorisation 2 et qui prennent en sandwich une crémaillère double C. La structure manoeuvrée peut être une plateforme mobile, qui n'a pas été représentée par mesure de simplification. Egalement, le support de la double crémaillère C, par exemple une jambe verticale, n'a pas non plus été représenté.
Plus précisément, le dispositif de manoeuvre 1 comprend une motorisation 2 de type hydraulique ou électrique dont l'arbre de sortie 3 correspond à l'arbre d'entrée d'un système réducteur primaire, schématisé en 4, pouvant être à trains parallèles ou à trains épicycloïdaux.The maneuvering device 1 illustrated on the figure 1 comprises mainly two pinions A and B rotated by the same motor 2 and which sandwich a double C rack. The manipulated structure can be a mobile platform, which has not been represented as a simplification measure. Also, the support of the double rack C , for example a vertical leg, has also not been shown.
More specifically, the operating device 1 comprises a motor 2 of the hydraulic or electrical type, the output shaft 3 corresponds to the input shaft of a primary reduction system, shown diagrammatically at 4, which can be parallel trains or epicyclic gear trains.

L'arbre de sortie 5 du réducteur primaire 4 correspond à l'arbre d'entrée d'un réducteur secondaire 6 de type différentiel planétaire à deux sorties.
Le pignon solaire d'entrée 7 de ce réducteur secondaire 6 est directement entraîné par l'arbre d'entrée 5. Ce pignon solaire 7 entraîne trois pignons satellites 8 reliés par un porte-satellite 9 dont l'arbre de sortie 10 entraîne directement le premier pignon A qui attaque l'un des côtés 12 de la double crémaillère fixe C.The output shaft 5 of the primary gearbox 4 corresponds to the input shaft of a secondary gearbox 6 of planetary differential type with two outputs.
The solar input gear 7 of this secondary gear 6 is directly driven by the input shaft 5. This sun gear 7 drives three planet gears 8 connected by a planet carrier 9 whose output shaft 10 directly drives the first pinion A which attacks one of the sides 12 of the fixed double rack C.

Les pignons satellites 8 entraînent la couronne externe 14 du réducteur secondaire 6 par l'intermédiaire d'une denture interne 15, et la denture extérieure 16 de la couronne 14 entraîne une roue dentée 17, par l'intermédiaire d'une chaîne de transmission 18 ; cette roue dentée 17 entraîne directement le second pignon d'attaque B par l'intermédiaire d'un arbre 21.
Ce second pignon B attaque le côté 22 de la double crémaillère 13.The planet gears 8 drive the outer ring 14 of the secondary gear 6 via an internal toothing 15, and the external toothing 16 of the ring gear 14 drives a toothed wheel 17 via a transmission chain 18 ; this toothed wheel 17 directly drives the second driving pinion B via a shaft 21.
This second pinion B attacks the side 22 of the double rack 13.

Les deux pignons A et B qui attaquent les deux côtés opposés 12 et 22 de la crémaillère C ont des axes de rotation horizontaux qui sont situés dans le même plan horizontal, ou approximativement dans le même plan horizontal.The two pinions A and B which attack the two opposite sides 12 and 22 of the rack C have horizontal axes of rotation which are situated in the same horizontal plane, or approximately in the same horizontal plane.

Les rapports de réduction entre la roue dentée 17 et la couronne extérieure 14 du réducteur secondaire 6 sont tels que les efforts sur les deux pignons A et B sont voisins.The reduction ratios between the toothed wheel 17 and the outer ring 14 of the secondary gear 6 are such that the forces on the two gears A and B are similar.

Les deux sorties du réducteur planétaire 6 ont un mouvement différentiel et tournent en sens inverse. Ces deux parties développent des efforts rigoureusement proportionnels, l'un étant la réaction de l'autre.
Cette particularité est un progrès notable par rapport à certaines réalisations antérieures pour lesquelles les efforts sur les deux pignons d'attaque varient suivant la position et le déplacement latéral de la crémaillère.The two outputs of the planetary gear 6 have a differential movement and rotate in the opposite direction. These two parts develop rigorously proportional efforts, one being the reaction of the other.
This feature is a significant improvement over some previous achievements for which the efforts on the two drive gears vary according to the position and the lateral displacement of the rack.

D'autre part, un système de mesure peut être prévu sur l'un des deux pignons d'attaque A, B de la crémaillère double C, plus avantageusement sur le pignon B entraîné par la roue dentée 17. Ce système de mesure, non représenté, est avantageusement placé du côté de la roue dentée 17, à l'intérieur de l'axe 21 prévu creux.On the other hand, a measuring system can be provided on one of the two drive pinions A , B of the double rack C , more advantageously on the pinion B driven by the gear wheel 17. This measuring system, no shown, is advantageously placed on the side of the toothed wheel 17, inside the hollow axis 21 provided.

La structure du système de levage définie ci-avant occupe un volume sensiblement réduit par rapport aux équipements antérieurs ; en fonction du type de dispositif, le gain de place peut atteindre 30 %.The structure of the lifting system defined above occupies a substantially reduced volume compared to previous equipment; depending on the type of device, space savings can reach 30%.

La figure 2 montre une variante de réalisation du dispositif de manoeuvre illustré sur la figure 1.
Ici, la transmission du mouvement entre la couronne extérieure 14 du réducteur secondaire 6 et la roue dentée 17 est réalisée par un pignon fou repéré 24.
Tous les autres éléments mécaniques sont identiques à ceux de la figure 1 et fonctionnent de la même manière.The figure 2 shows an alternative embodiment of the maneuvering device illustrated on the figure 1 .
Here, the transmission of the movement between the outer ring gear 14 of the secondary gear 6 and the toothed wheel 17 is carried out by an idle gear identified 24.
All other mechanical elements are identical to those of the figure 1 and work the same way.

Claims (5)

  1. A device for operating a structure by raising it or lowering it relative to a support, by means of motorised pinions (A, B) integral with said structure, meshing into a fixed vertical rack (C) integral with said support, characterised in that it includes a rack (C) cut on both sides (12, 22), sandwiched between two leading pinions (A, B) with horizontal axes and arranged in the same horizontal plane or substantially in the same horizontal plane, driven into opposite directions by the same motorised system (2), wherein the outlet shaft (3) of said motorised system (2) transmits the driving motion to a primary reducing system (4) whereof the outlet shaft (5) corresponds to the inlet shaft of a secondary reducing gear (6) of the planetary differential type including a solar pinion (7), satellite pinions (8) and an outer ring (14), wherein the satellite holder (9) of said secondary differential reducing gear (6) drives one of said pinions (A), on one of the sides (12) of said double rack (C), and the outer ring (14) of said planetary reducing gear (6) drives by appropriate means (18, 24), a toothed wheel (17) in charge in turn of driving the second pinion (B) on the other side (22) of said double rack (C).
  2. A device according to claim 1, characterised in that the outer ring (14) of the planetary reducing gear (6) includes an external toothing (16), wherein the mechanical linking means between said ring (14) and the toothed wheel (17) for driving the second motorised pinion (B) are formed of a chain (18)
  3. A device according to claim 1, characterised in that the outer ring (14) of the planetary reducing gear (6) includes an external toothing (16), wherein the mechanical linking means between said ring (14) and the toothed wheel (17) for driving the second motorised pinion (B) are formed of at least one idle pinion (24).
  4. A device according to any of the claims 1 to 3, characterised in that it comprises a system for measuring the load applied on the pinion (B) driven by the toothed wheel (17), which measuring system is placed on the side of said toothed wheel (17).
  5. An installation for operating a structure by raising it or lowering it relative to a support, which installation is formed of several devices (1) according to any of the claims 1 to 4, superimposed on top of one another.
EP06709452A 2005-01-28 2006-01-27 Device for handling a structure that is being lifted or lowered Active EP1848655B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI200630193T SI1848655T1 (en) 2005-01-28 2006-01-27 Device for handling a structure that is being lifted or lowered
PL06709452T PL1848655T3 (en) 2005-01-28 2006-01-27 Device for handling a structure that is being lifted or lowered
CY20091100118T CY1108755T1 (en) 2005-01-28 2009-02-03 PROVISION FOR HANDLING A CONSTRUCTION WHILE LIFTING OR DOWN

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0500899A FR2881413B1 (en) 2005-01-28 2005-01-28 DEVICE FOR MANEUVERING A STRUCTURE IN ELEVATION OR LOWERING
PCT/FR2006/050068 WO2006079759A1 (en) 2005-01-28 2006-01-27 Device for handling a structure that is being lifted or lowered

Publications (2)

Publication Number Publication Date
EP1848655A1 EP1848655A1 (en) 2007-10-31
EP1848655B1 true EP1848655B1 (en) 2008-11-26

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EP06709452A Active EP1848655B1 (en) 2005-01-28 2006-01-27 Device for handling a structure that is being lifted or lowered

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US (1) US7581714B2 (en)
EP (1) EP1848655B1 (en)
JP (1) JP4741608B2 (en)
KR (1) KR101294263B1 (en)
CN (1) CN100556794C (en)
AT (1) ATE415373T1 (en)
CY (1) CY1108755T1 (en)
DE (1) DE602006003868D1 (en)
DK (1) DK1848655T3 (en)
ES (1) ES2317503T3 (en)
FR (1) FR2881413B1 (en)
NO (1) NO332134B1 (en)
PL (1) PL1848655T3 (en)
PT (1) PT1848655E (en)
SI (1) SI1848655T1 (en)
WO (1) WO2006079759A1 (en)

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KR102146416B1 (en) * 2019-03-15 2020-08-20 최인규 Self-Locking Unit and Mechanical Jack-up Barge's up-and-down Machine having multiple braking, interlocking and single drive functions using of the the same
CN113417268B (en) * 2021-05-31 2022-07-26 武汉船用机械有限责任公司 Lifting system of ocean platform

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KR101294263B1 (en) 2013-08-07
ES2317503T3 (en) 2009-04-16
WO2006079759A1 (en) 2006-08-03
ATE415373T1 (en) 2008-12-15
CN100556794C (en) 2009-11-04
NO332134B1 (en) 2012-07-02
FR2881413A1 (en) 2006-08-04
KR20070100956A (en) 2007-10-15
JP2008528836A (en) 2008-07-31
CN101111448A (en) 2008-01-23
US20080116427A1 (en) 2008-05-22
PL1848655T3 (en) 2009-05-29
PT1848655E (en) 2009-02-09
DK1848655T3 (en) 2009-03-09
SI1848655T1 (en) 2009-04-30
EP1848655A1 (en) 2007-10-31
DE602006003868D1 (en) 2009-01-08
US7581714B2 (en) 2009-09-01
JP4741608B2 (en) 2011-08-03
FR2881413B1 (en) 2008-02-29
CY1108755T1 (en) 2014-04-09

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