EP1714936B1 - Dispositif de levage pour mettre en place et/ou enlever des vis lourdes pour brides et procédé pour mettre en place une telle vis pour brides - Google Patents

Dispositif de levage pour mettre en place et/ou enlever des vis lourdes pour brides et procédé pour mettre en place une telle vis pour brides Download PDF

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Publication number
EP1714936B1
EP1714936B1 EP20060075870 EP06075870A EP1714936B1 EP 1714936 B1 EP1714936 B1 EP 1714936B1 EP 20060075870 EP20060075870 EP 20060075870 EP 06075870 A EP06075870 A EP 06075870A EP 1714936 B1 EP1714936 B1 EP 1714936B1
Authority
EP
European Patent Office
Prior art keywords
flange
jack
bolt
lifting device
parts
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.)
Not-in-force
Application number
EP20060075870
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German (de)
English (en)
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EP1714936A1 (fr
Inventor
Nico Willem Bouman
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.)
Stork Industry Services BV
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Stork Industry Services 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 Stork Industry Services BV filed Critical Stork Industry Services BV
Publication of EP1714936A1 publication Critical patent/EP1714936A1/fr
Application granted granted Critical
Publication of EP1714936B1 publication Critical patent/EP1714936B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0085—Counterholding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/16—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same abutted flanges

Definitions

  • the invention relates to a lifting device for use in fitting and removing heavy threaded flange bolts in the case of a flange assembly consisting of two flanges lying opposite each other and provided with bolt holes, and having a substantially vertical axis.
  • Flanged joints are often used in industrial plants, such as oil refineries, power stations, chemical factories and the like in order to connect ends of pipes to each other.
  • the flanges and the corresponding flange bolts can be of a very large and heavy design. Fitting and removing the heavy flange bolts, which can weigh up to 70 - 80 kg, is currently still often performed manually, since the use of a crane is expensive and in many cases is even not possible because there is insufficient hoisting space above the bolt hole where the threaded bolt is to be fitted or removed.
  • a first fitter inserts the flange bolt from below into the corresponding bolt hole, generally from a crouching position or down on his knees. He moves the flange bolt further upwards into the bolt hole with both hands until the top end of the bolt is projecting with a number of leads above the top flange, so that a second fitter can screw a nut onto the top end of the bolt. Sometimes the nut does not screw smoothly onto the flange bolt, so that the latter tends to turn with the nut. The first fitter then has to apply even more effort to hold the bolt. In the case of very heavy flange bolts a lever beam is also sometimes used to move the flange bolt upwards in the bolt hole.
  • the object of the invention is to make it easier to fit and remove heavy threaded flange bolts in the case of a flange assembly consisting of two flanges lying opposite each other and provided with bolt holes, and having a substantially vertical axis.
  • US 6.560.836B1 discloses a hand tool for the removal of bound bolts out of an engine shaft flange assembly. After the nuts are loosened, the bolts are still bound in the engine shaft flange assembly.
  • the hand tool comprises two flanges, wherein a second flange is movable relative to a first flange.
  • the first flange is positioned stationary to the engine shaft flange assembly and has extraction bolt housings abutting to the flange assembly.
  • the extraction bolt housings cover the bolts with a predefined play between the housings and the bolts, which permits a relative movement of the bolts with respect to the housings.
  • the second flange of the hand tool is connected to U-shaped extractor rods, which are placed on the free ends of the bound bolts to be extracted.
  • the second flange is engaged with a jack bolt.
  • the free end of the jack bolt abuts to the first flange of the hand tool.
  • guide rods are provided to guide the movement of the second flange relative to the first flange. Screwing up the jack bolt causes a translation of the second flange of the hand tool together with the extractor rods with respect to the first flange. This results in a pushing force on the bound bolts, which will be pushed out the engine flange assembly and will be pushed into the extraction bolt housings.
  • the hand tool of US 6.560.836B1 is designed to remove bolts out of a engine flange assembly by pushing on the free ends of the bolts with extractor rods.
  • This purpose differs from the purpose of the lifting device according to the invention.
  • This hand tool is in fact unsuitable and not arranged for the stated purpose of the invention to make it easier to fit and remove heavy threaded flange bolts into or from a flange assembly. In the first place, this hand tool misses a supporting part to support heavy bolts and to move them in a vertical direction upwards into the flange assembly.
  • the components of the hand tool, in particular the extraction bolt housings make it impossible to reach the bolts for screwing a nut on them to finally fit the bolts in the flange assembly. Consequently, in contrast to the lifting device according to the invention, this hand tool cannot be used for supporting the weight of heavy flange bolts during removal of these bolts from a flange assembly or during insertion and fitting of these bolts into a flange assembly
  • the invention relates in particular to fitting and/or removing heavy flange bolts 5, which can have a weight of up to 70 - 80 kg, in the situation in which the axis of the flange assembly is substantially vertical.
  • Figs. 1a and 1b further show a lifting device indicated in general by 8, which lifting device is used for fitting and/or removing such heavy flange bolts 5.
  • the embodiment of the lifting device 8 according to the invention shown in Figs. 1a and 1b comprises a jack 9 in the form of a screw jack.
  • the jack 9 comprises an elongate housing 10 and a lead screw 11 which is rotatable in said housing, and outside the housing is provided with a drive nut 12.
  • the lead screw 11 can be turned with the aid of an auxiliary tool that is applied to the drive nut 12.
  • This auxiliary tool can be a key or a crank by means of which the lead screw 11 is turned manually, or it can be an electric or pneumatic rotating tool.
  • the jack 9 further comprises a first pressure plate 13 which is connected to the housing 10 and a second pressure plate 14 which is movable relative to said first pressure plate.
  • the second pressure plate 14 can be moved relative to the first pressure plate 13 by means of the lead screw 11.
  • the jack 9 in the exemplary embodiment shown is a commercially available jack which is used in the automobile industry for fitting McPherson springs. However, the jack can also be another type of jack.
  • the lifting device 8 further comprises a first supporting part 16, which is connected to the first pressure plate 13 and extends in the transverse direction relative to the axis of the jack 9, and a second pressure part 17, which is connected to the second pressure plate 14 and extends in the transverse direction relative to the axis of the jack.
  • the first supporting part 16 is preferably connected in a detachable manner by way of a first connecting part 18 to the first pressure plate 13, and the second supporting part 17 is preferably connected in a detachable manner by means of a second connecting part 19 to the second pressure plate 14.
  • the connecting parts 18 and 19 are fixed on the pressure plates 13 and 14 by means of bolts 20.
  • the first supporting part 16 and the first connecting part 18 together form a substantially L-shaped part.
  • the second supporting part 17 and the second connecting part 19 likewise together form a substantially L-shaped part.
  • the supporting parts 16 and 17 are preferably shaped like a fork.
  • the first supporting part 16 is further provided with a plastic disc 21. Said plastic disc is formed so as to be complementary to the fork shape of the supporting part 16 in such a way that it can be pushed to fit in and around the fork-shaped supporting part 16, and is subsequently also removable again, so that it can be fitted as desired on and removed from the desired supporting part 16.
  • the second supporting part 17 is designed for placing between the two flanges 1 and 2 during use of the lifting device for fitting and/or removing heavy flange bolts, and the first supporting part 16 with the plastic disc 21 is designed for placing under a flange bolt 5 to be fitted and for supporting the latter.
  • the lengths in the vertical direction of the connecting parts 18 and 19 are the same in Fig. 1 .
  • the connecting parts 18, 19 of the L-shaped parts 16, 18 and 17, 19 respectively can be longer or shorter, or can be of different lengths from each other.
  • a tool kit can be provided, consisting of a jack 9 and several L-shaped parts 16, 18 and 17, 19 respectively with different dimensions.
  • a tool kit consisting of a jack 9 and four accompanying L-shaped attachments, two of which have a short connecting part 18, 19 and can be used as the L-shaped parts 16, 18 and 17, 19 respectively with a short connecting part 18, 19, and the other two L-shaped attachments of which have a long connecting part 18, 19 and can be used as the L-shaped parts 16, 18 and 17, 19 respectively with a long connecting part 18.
  • two suitable L-shaped attachments can then be selected and fitted by means of bolts 20 on the first pressure plate 13 and on the second pressure plate 14 of the jack 9, in order to form a complete lifting device 8 which is suitable in that situation.
  • different lifting devices 8 can be made with this tool kit by combining a jack 8 with two short L-shaped attachments or with one short L-shaped attachment and one long L-shaped attachment, or with two long L-shaped attachments, which lifting devices are suitable for fitting or removing a flange assembly with not so thick, moderately thick or rather thick flanges 1, 2 respectively with the corresponding shorter or longer flange bolts 5.
  • the L-shaped attachments forming the L-shaped parts 16, 18 and 17, 19 respectively can be made of steel.
  • the L-shaped attachments form a considerable part of the weight of the lifting device 8 and certainly also form a considerable part of the weight of the tool kit, as described above.
  • the L-shaped attachments can advantageously be made of aluminium, so that a relatively light lifting device 8 or tool kit is produced.
  • Figs. 2a and 2b show the situation in which a closing flange 2 (top flange) is placed on a flange 1 (bottom flange) connected to a vertically disposed pipe end 3.
  • the flange 2 could also be connected to a pipe end (not shown) in the same way as the flange 1.
  • the bolt holes 4 in the flanges 1 and 2 lie opposite each other.
  • Figs 3a and 3b further show a flange bolt 5 to be fitted, having a first nut 6 screwed onto it.
  • the flange bolt 5 could also be provided with a fixed head on the end concerned.
  • the flange bolt 5 is inserted manually by a fitter from below into the corresponding bolt hole 4 in the bottom flange 1.
  • the lifting device 8 As shown in Figs. 4a and 4b , the lifting device 8 according to the invention is then placed.
  • the supporting parts 16 and 17 are moved apart here.
  • the second supporting part 17 is placed between the flanges 1 and 2, and the first supporting part 16 with the plastic disc 21 is placed under the flange bolt 5 to be fitted.
  • the flange bolt 5 is now supported by the lifting device 8, so that the fitter who initially inserted the flange bolt 5 into the corresponding bolt hole has his hands free.
  • the lifting device 8 can be fitted by the fitter who initially inserted the flange bolt 5 into the corresponding bolt hole 4, or by a second fitter.
  • Figs. 5a and 5b the flange bolt 5 is moved further into the corresponding bolt hole and the second nut 7 to be screwed onto the flange bolt 5 on the top side of the top flange 2 is also shown.
  • the flange bolt 5 is moved further upwards by turning the lead screw 11 of the jack 9 (arrow 23 in Fig. 5b ). In the course of this the flange bolt 5 moves through between the legs of the fork-shaped second supporting part 17.
  • Figs. 6a and 6b show the situation in which the flange bolt 5 has moved so far up that one or two leads of the flange bolt 5 extend above the top flange 2, as indicated at 24.
  • the two supporting parts 16 and 17 have now moved so far towards each other that the two pressure plates 13 and 14 of the jack 9 are lying close to each other or resting against each other.
  • the second nut 7 can now be screwed onto the flange bolt 5.
  • the flange bolt 5 is supported on the plastic disc 21 provided in the fork-shaped supporting part 16 and consequently undergoes a friction force which offers resistance to slipping and turning, so that the flange bolt 5 is prevented from turning along with the nut 7 when the latter is being screwed onto it.
  • the situation shown in Figs. 6a and 6b corresponds substantially to the situation shown in Figs. 1a and 1b .
  • the second nut 7 is screwed further onto the flange bolt 5, so that the flange bolt moves further upwards and comes away from the first supporting part 16 with plastic disc 21.
  • the lifting device 8 can now be removed, as shown in Figs. 7a and 7b .
  • Figs. 8a and 8b show the situation in which the flange bolt 5 with nuts 6 and 7 is fitted in the flange assembly.
  • the operations described above must be carried out for each of the flange bolts 5 to be fitted in the bolt holes 4 of the flange assembly.
  • the number of bolt holes 4 can be relatively large and can be up to 24 or more.
  • the lifting device can be of a different design and, for example, comprise a different type of jack.
  • the supporting parts 16, 17 could also be designed in such a way that they can be connected directly (i.e. without the connecting parts 18, 19) to the pressure plates 13, 14.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Claims (15)

  1. Dispositif de levage (8) destiné à être utilisé lors de l'assemblage et du retrait de boulons de bride (5) filetés lourds dans un ensemble de brides consistant en deux brides (1, 2) se trouvant l'une en face de l'autre et pourvues de trous de boulon (4), et comportant un axe sensiblement vertical, caractérisé en ce qu'il comprend un vérin (9) avec une première partie (13) et une deuxième partie (14) qui est mobile par rapport à la première partie (13), et des moyens pour déplacer la première partie (13) et la deuxième partie (14) l'une par rapport à l'autre, une première partie de support (16) qui est conçue pour être placée sous un boulon de bride (5) à assembler ou à retirer et pour supporter le susdit, reliée à la première partie (13) et s'étendant dans la direction transversale par rapport à l'axe du vérin (9), et une deuxième partie de support (17), reliée à la deuxième partie (14) et s'étendant dans la direction transversale par rapport à l'axe du vérin (9).
  2. Dispositif de levage selon la revendication 1, dans lequel le vérin (9) est un vérin à vis avec une vis mère (11) s'étendant à travers la deuxième partie, pour déplacer la deuxième partie (14) par rapport à la première partie (13).
  3. Dispositif de levage selon la revendication 1 ou 2, dans lequel les parties de support (16, 17) sont respectivement reliées de manière détachable aux première et deuxième parties (13, 14) du vérin (9).
  4. Dispositif de levage selon une ou plusieurs des revendications 1 à 3, dans lequel chacune des deux parties de support (16, 17) a la forme d'une fourche.
  5. Dispositif de levage selon une ou plusieurs des revendications 1 à 4, dans lequel l'une des deux parties de support (16, 17) est pourvue d'un disque (21) en matière plastique.
  6. Dispositif de levage selon une ou plusieurs des revendications 1 à 5, dans lequel chacune des deux parties de support (16, 17) est reliée, au moyen d'une partie de liaison (18, 19) s'étendant sensiblement parallèlement à l'axe du vérin (9), aux première et deuxième parties (13, 14) respectivement du vérin (9), de manière à ce que les parties de support (16, 17) avec les parties de liaison (18, 19) forment des parties sensiblement en forme de L.
  7. Dispositif de levage selon la revendication 6, dans lequel la partie en forme de L est constituée d'aluminium.
  8. Outillage pour assembler et retirer des boulons de bride (5) filetés lourds d'un ensemble de brides, comprenant un vérin (9) avec une première partie (13) et une deuxième partie (14) qui est mobile par rapport à la première partie (13), et des moyens (12) pour déplacer la première partie (13) et la deuxième partie (14) l'une par rapport à l'autre, et au moins deux parties sensiblement en forme de L qui sont reliées ou doivent être reliées de manière détachable aux première et deuxième parties (13, 14) et consistant chacune en une partie de support (16, 17), qui est conçue pour être placée sous un boulon de bride (5) à assembler ou retirer et pour supporter le susdit pour assembler ou retirer le boulon de bride (5) lourd, et une partie de liaison (18, 19) s'étendant sensiblement transversalement à la partie de support (16, 17), laquelle partie de liaison (18, 19) peut être reliée ou est reliée à la première ou à la deuxième partie (13, 14) du vérin (9).
  9. Outillage selon la revendication 8, dans lequel le vérin (9) est un vérin à vis avec une vis mère (11) s'étendant à travers la deuxième partie (14), pour déplacer la deuxième partie (14) par rapport à la première partie (13).
  10. Outillage selon la revendication 8 ou 9, comprenant au moins trois parties sensiblement en forme de L, dans lequel les dimensions des parties en forme de L, en particulier les longueurs des parties de liaison (18, 19), sont différentes les unes des autres.
  11. Outillage selon une ou plusieurs des revendications 8 à 10, dans lequel chacune des parties de support (16, 17) a la forme d'une fourche.
  12. Outillage selon une ou plusieurs des revendications 8 à 11, dans lequel au moins l'une des parties de support (16, 17) est pourvue d'un disque (21) en matière plastique.
  13. Outillage selon une ou plusieurs des revendications 8 à 12, dans lequel les parties en forme de L sont réalisées en aluminium.
  14. Procédé pour assembler un boulon de bride (5) fileté lourd dans le cas d'un ensemble de brides consistant en deux brides (1, 2) se trouvant l'une en face de l'autre et pourvues de trous de boulon (4), et ayant un axe sensiblement vertical, au moyen d'un dispositif de levage (8) selon l'une des revendications 1 à 7, comprenant les étapes suivantes consistant à :
    - insérer manuellement un boulon de bride (5) pourvu d'un premier écrou (6) ou d'une tête à partir du dessous dans un trou de boulon (4) de la bride inférieure (11), le premier écrou (6) ou la tête se trouvant sur la partie d'extrémité inférieure du boulon de bride (5) ;
    - placer le dispositif de levage (8) sur l'ensemble de brides de manière à ce que l'une de ses parties de support (17) soit placée entre les deux brides (1, 2), et que l'autre partie de support (16) soit placée sous le boulon de bride (5) placé dans le trou de boulon (4) et supporte le boulon de bride (5) ;
    - actionner le vérin (9) de manière à ce que la partie de support (16) placée sous le boulon de bride (5) se déplace vers le haut avec le boulon de bride (5) supporté sur celle-ci jusqu'à ce que le boulon de bride (5) fasse saillie d'au moins un pas au-dessus de la bride supérieure (2) ;
    - visser un deuxième écrou (7) sur la partie du boulon de bride (5) faisant saillie au-dessus de la bride supérieure (2);
    - serrer davantage le deuxième écrou (7) ; et
    - retirer le dispositif de levage (8) de l'ensemble de brides.
  15. Procédé selon la revendication 14, dans lequel, si le vérin (9) est sous la forme d'un vérin à vis avec une vis mère (11), afin de déplacer le boulon de bride (5) vers le haut, la vis mère est tournée manuellement au moyen d'une clé ou d'une manivelle, ou par un outil rotatif électrique ou pneumatique.
EP20060075870 2005-04-20 2006-04-12 Dispositif de levage pour mettre en place et/ou enlever des vis lourdes pour brides et procédé pour mettre en place une telle vis pour brides Not-in-force EP1714936B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1028828A NL1028828C2 (nl) 2005-04-20 2005-04-20 Hefinrichting voor gebruik bij het monteren en/of demonteren van zware flensbouten en werkwijze voor het monteren van een dergelijke flensbout.

Publications (2)

Publication Number Publication Date
EP1714936A1 EP1714936A1 (fr) 2006-10-25
EP1714936B1 true EP1714936B1 (fr) 2009-07-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060075870 Not-in-force EP1714936B1 (fr) 2005-04-20 2006-04-12 Dispositif de levage pour mettre en place et/ou enlever des vis lourdes pour brides et procédé pour mettre en place une telle vis pour brides

Country Status (3)

Country Link
EP (1) EP1714936B1 (fr)
DE (1) DE602006007745D1 (fr)
NL (1) NL1028828C2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105818094A (zh) * 2016-05-05 2016-08-03 广西桂冠电力股份有限公司大化水力发电总厂 变压器盘式潜油泵拆装专用装置
US10906164B2 (en) 2018-06-22 2021-02-02 Raytheon Technologies Corporation Immobilizer tool set for bolt installation and method
CN110744491B (zh) * 2019-10-31 2021-08-20 中船黄埔文冲船舶有限公司 一种紧配螺栓拆卸辅助工装
WO2021122289A1 (fr) * 2019-12-17 2021-06-24 Vestas Offshore Wind A/S Kit de positionnement de boulons dans une liaison à bride

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Publication number Priority date Publication date Assignee Title
GB582027A (en) * 1944-06-14 1946-11-01 Vincent Gordon Yeomans Improvements in the erection of concrete shuttering and a wall bracket for use therein
DE8617893U1 (de) * 1986-07-04 1986-09-25 Klann, Horst, 7730 Villingen-Schwenningen Druckfedernspanner
FR2619177B1 (fr) * 1987-08-07 1991-10-11 Facom Compresseur de ressorts helicoidaux
FR2653051A1 (fr) * 1989-10-18 1991-04-19 Mecanique Energetique Dispositif de compression de ressorts.
FR2692508B1 (fr) * 1992-06-17 1994-09-30 Framatome Sa Dispositif de manutention de goujons de masse et de dimensions importantes.
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JP3553738B2 (ja) * 1996-08-12 2004-08-11 株式会社中部プラントサービス 重量物のバランサーとナット吊り上げ支持装置
DE29804271U1 (de) * 1998-03-11 1998-05-07 Hazet-Werk Hermann Zerver GmbH & Co. KG, 42857 Remscheid Biegsame Schutzauflage für ein aus zwei axial zueinander beweglichen, klauenförmigen Greifbacken bestehendes Federspanngerät
US6560836B1 (en) * 2002-07-11 2003-05-13 Richard Briscoe Hand tool for extracting bolts

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Publication number Publication date
EP1714936A1 (fr) 2006-10-25
NL1028828C2 (nl) 2006-10-30
DE602006007745D1 (de) 2009-08-27

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