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EP1953111B1 - Griffe de levage et machine de levage équipé avec celle-ci - Google Patents

Griffe de levage et machine de levage équipé avec celle-ci Download PDF

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Publication number
EP1953111B1
EP1953111B1 EP08150581A EP08150581A EP1953111B1 EP 1953111 B1 EP1953111 B1 EP 1953111B1 EP 08150581 A EP08150581 A EP 08150581A EP 08150581 A EP08150581 A EP 08150581A EP 1953111 B1 EP1953111 B1 EP 1953111B1
Authority
EP
European Patent Office
Prior art keywords
hoisting
contact surface
clamp according
leg
contact
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
EP08150581A
Other languages
German (de)
English (en)
Other versions
EP1953111A2 (fr
EP1953111A3 (fr
Inventor
Martinus Marinus Maria Van Berlo
Apollos Adriaan Van Oord
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.)
Van Oord Dredging and Marine Contractores BV
Original Assignee
Van Oord Dredging and Marine Contractores 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 Van Oord Dredging and Marine Contractores BV filed Critical Van Oord Dredging and Marine Contractores BV
Publication of EP1953111A2 publication Critical patent/EP1953111A2/fr
Publication of EP1953111A3 publication Critical patent/EP1953111A3/fr
Application granted granted Critical
Publication of EP1953111B1 publication Critical patent/EP1953111B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
    • B66C1/48—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces to vertical edge portions of sheets, tubes, or like thin or thin-walled articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/625—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for gripping drums or barrels

Definitions

  • the invention relates to a hoisting clamp.
  • the invention relates in particular to a hoisting clamp for use for bringing objects, in particular sections such as tubular sections or box sections, into a vertical position.
  • Hoisting clamps for gripping objects to be displaced are known from practice.
  • hydraulically or pneumatically energized grippers are used for engaging products at a longitudinal edge thereof, so that the products can be brought into and held in a desired position.
  • hoisting clamps which, for instance, are screwed or clamped to a product, for instance using screw means.
  • Publication SU 796 153 by Orgtekhstroj shows a clamp for transporting pre-fabricated staircases.
  • the clamping force is generated by the proportional own weight of the pre-fabricated staircase during lifting.
  • Two clamping mechanism on both ends of the staircase are used to carry the staircase in a pre-set angle, by pre-setting the length of the cables suspending the clamping mechanisms.
  • the object of the invention is to provide a hoisting clamp which is simple and reliable in use.
  • a hoisting clamp is characterized by a first and a second contact part, mutually connected by a connecting bracket, the first contact part having a first contact surface and the second contact part having a second contact surface, which contact surfaces face each other and have a mutual distance, while a locking bracket is provided, displaceable relative to at least the first and second contact surface, while on the locking bracket a hoisting element and a clamping part are provided, at a distance from each other, the clamping part being operatively movable against an object inserted between the first and second contact surface by exertion of tensile force on the hoisting element.
  • Such a hoisting clamp can be simply slipped over the edge of a product, whereupon by initiating a hoisting movement the edge of the product is clamped tight.
  • the locking bracket through displacement relative to the contact surfaces, then provides for the desired clamping, which can be simply removed again, for instance by removing hoisting tension.
  • a hoisting clamp according to the invention is characterized in that in the hoisting clamp between the contact surfaces and the connecting bracket a receiving space is formed in which an edge of a product to be hoisted can be received, such that the edge can be clamped tight by the locking bracket.
  • the longitudinal edge can then preferably rest on the connecting bracket when the product is being brought into a vertical position.
  • the invention is characterized in that the first and/or the second contact surface is made of bent design, such that the first contact surface can be applied along an outer side and the second contact surface along an inner side of a tubular section with a bent outer wall, while the radii of the first and second contact surface preferably correspond to the radii, or the outer and inner surface, respectively, of the tubular section, adjacent the longitudinal edge where the clamping bracket is applied during use.
  • a first and second contact surface can be used that are adapted to a section to be lifted that has a different cross section.
  • a hoisting clamp according to the invention is characterized in that the locking bracket is provided with a hoisting means to which for instance a hoisting cable or hoisting chain can be attached and by way of which the hoisting clamp can be lifted, such that when an object is arranged between the contact surfaces and the connecting bracket, the clamping part of the locking bracket is clamped against the object when a hoisting force is applied to the hoisting means mentioned.
  • the invention furthermore relates to a method for hoisting objects, in particular into a vertical position.
  • a hoisting clamp according to the invention is used.
  • 'vertical' is at least understood to mean a line approximately parallel to the direction of the action of the earth's gravity field, unless expressly stated otherwise.
  • the terms left, right, top, bottom, front and back are used in this description as designations relative to the plane of the paper in the respective drawing, unless stated otherwise.
  • 'Approximately' should at least be understood to mean a deviation of plus or minus 10% from a given value, unless expressly stated otherwise.
  • a tubular element such as a pipe of a cylindrical cross section, also referred to as tubular section.
  • a hoisting clamp according to the invention can be used for hoisting up open or closed sections, rectangular or polygonal, regularly or irregularly shaped tubular sections, I-, H-, T-sections, sheet sections, and the like.
  • Fig. 1A schematically shows in side elevation a tubular section 1 having for instance a cylindrical cross section, disposed on a vessel 2.
  • the tubular section 1 has a longitudinal direction L and, approximately at right angles thereto, a diameter D.
  • the tubular section 1 has for instance a length between one meter and a few tens of meters.
  • the diameter D is for instance between one decimeter and a few tens of decimeters or more, for instance a few meters.
  • the tubular section 1 has a first end 3 and an opposite second end 4 and may be open at both ends 3, 4.
  • the ends 3, 4 are preferably both formed by a longitudinal edge having a wall thickness d.
  • the tubular section is for instance manufactured from bent and/or drawn plate material such as steel.
  • a hoisting cable 5 has been attached, for instance welded on, fastened to a hoisting eye, a spreader, a hydraulic or pneumatic clamp or the like, such that the entire weight of the tubular section 1 can be borne by the hoisting cable 5.
  • a hoisting clamp 6 has been attached, to which a second hoisting cable 7 is secured, as will be described in more detail hereinafter.
  • a hoisting clamp 6 is further shown and elucidated with reference to Figs. 2-5 .
  • the length of the second hoisting cable 7 can preferably be adjusted, independently of the length of the first hoisting cable 5, for instance using winches, hoist drums or like hoisting means known per se.
  • the longitudinal direction L of the tubular section 1 can for instance be brought from a substantially horizontal position as shown in Fig. 1A to a substantially vertical position as shown in Figs. 1E and F , conventionally also known as "tailing".
  • the hoisting cables 5 and 7 are attached when the section 1 is for instance laid horizontally on supports 8 on a deck 9 of a ship 2 or, for instance, on supports on a vehicle or the ground.
  • the tubular section 1 is then lifted, with its longitudinal direction L approximately horizontal, until a desired distance to the supports 8 has been obtained, as shown in Fig. 1B .
  • the first hoisting cable 5 is taken in further than the second hoisting cable 7, so that the longitudinal direction is adjusted via the positions as shown in Figs. 1C and 1D to a substantially vertical position, as shown in Fig. IE.
  • the second hoisting cable 7 can be detached by paying it out to some extent or by taking the first hoisting cable in further while keeping the second hoisting cable 7 at the same length or taking it in less, so that the hoisting clamp 6 comes down under the second, then lowermost, end 4 of the tubular section and can be removed.
  • the tubular section such as a pipe can then be moved to a desired position and be secured, for instance on a foundation.
  • the tubular section can for instance form a column of a building, a mast, a construction part of a platform, a mast of a windmill or other construction part known per se.
  • the section may be tilted right away, or it may be moved from a vertical or inclined position to a differently inclined or lying, horizontal position, or the like.
  • a hoisting clamp 6 according to the invention is shown, in more detail.
  • This hoisting clamp comprises a first contact part 11 and a second contact part 12, mutually connected by a connecting bracket 30.
  • the first contact part 11 has a first contact surface 13, the second contact part 12 a second contact surface 14.
  • the contact surfaces 13, 14 face each other and have a mutual distance Z, viewed in a direction perpendicular to the two contact surfaces 13, 14.
  • a locking bracket 15 is provided, which is displaceable relative to at least the first 13 and second contact surface 14.
  • a hoisting element 16, such as for instance a hoisting eye, hook, clip or like means for attachment of the second hoisting cable 7, and a clamping part 17 are provided on the locking bracket 15, at a mutual distance X, while the clamping part 17 is operatively movable against an object 1 inserted between the first 13 and second contact surface 14 by exertion of a tensile force F on the hoisting element 16.
  • the tensile force F is preferably exerted by the second hoisting cable 7.
  • an insertion space 18 is defined, or at least partly surrounded, such that an end 4 of a tubular section 1 can be inserted therein, approximately parallel to the longitudinal direction L.
  • the distance Z between the two contact surfaces 13, 14 is then preferably approximately equal to the wall thickness d of the tubular section adjacent the second end 4, so that the second end 4 can be inserted, with little clearance, until the second end 4 butts against the connecting bracket 30.
  • the connecting bracket 30 is slightly U-shaped, with a first leg and a second leg, the first contact surface being attached to the first leg and the second contact surface being attached to the second leg.
  • the locking bracket 15 can preferably be moved by way of the clamping part 17 at least partly into the insertion space 18, against the second end 4 of the tubular section, such that it is clamped. To that end, the locking bracket can be connected with the connecting bracket 30 via a rotation axis 19, the rotation axis 19 being positioned between the clamping part 17 and the hoisting element 16. The tensile force F can then effect a rotation of the locking bracket 15, so that the clamping part 17 is clamped against the tubular section 1 and the tubular section 1 is retained.
  • the clamping part 17 is substantially or wholly clear of the tubular section when the hoisting clamp 6 is slipped onto the tubular section 1, by pressing the locking bracket 15 substantially against the connecting bracket 30.
  • the second hoisting cable 7 is pulled tight, whereby the locking bracket 15 rotates to an approximately vertical position, approximately at right angles to the longitudinal direction L, with the tensile force F approximately extending along the line connecting the hoisting element 16 and the rotation axis 19.
  • the clamping part 17 is thereby pressed against the tubular section.
  • the tubular section is lifted and thereupon the longitudinal axis thereof is brought in a substantially vertical orientation.
  • the direction of the tensile force F is more and more parallel to the longitudinal direction L of the tubular section, so that the locking bracket 15 is moved closer to the connecting bracket 30.
  • the clamping part 17 is thereby moved towards the tubular section 1, so that the clamping force thereby exerted becomes increasingly greater according as the longitudinal direction L of the tubular section is oriented more vertically.
  • the clamping part 17 can be moved clear of the tubular section 1, and the hoisting clamp 6 can simply come off the tubular section by the influence of gravity. This is because when the second hoisting cable 7 is lengthened relative to the first hoisting cable 5, the clamping part 17 will move away and the hoisting clamp 6 can slide down along the tubular section and eventually come off it because there is no clamping action anymore. In this way, detaching the hoisting clamp requires no human intervention or at least less than in the case of the known hoisting clamps.
  • a hoisting clamp 6 is provided with a stop 20, against which the locking bracket 15 can abut when it is in the loose position. This prevents the locking bracket from rotating too far.
  • the stop is preferably so positioned that the insertion space 18, with the bracket 30 in free position, is oriented approximately horizontally. However, a different angle may be set.
  • the rotation axis 19 is preferably outside the insertion space 18, at a distance from the contact surfaces 13, 14. In this way, it cannot hinder insertion of the tubular section.
  • the connecting bracket 30 is preferably slightly U-shaped, that is, provided with two legs 21 extending in a same direction, approximately next to each other, from a crosspiece 22 ( Fig. 2A ).
  • the contact surfaces 13, 14 are arranged adjacent the free ends 23, 24 of a first and a second one of the two legs 21, respectively.
  • the first leg 21A can then have a length, measured from the crosspiece, that is greater than the length of the second leg 21B.
  • the two contact surfaces 13, 14 are spaced apart a distance Y, seen in side view, so that placement of the hoisting clamp 6 is further simplified.
  • the hoisting clamp can be tilted to some extent, thus allowing simpler access to the insertion space.
  • the contact surfaces 13, 14 preferably have a slightly angled or bent shape, as shown in Figs. 2 and 2A .
  • the shape is preferably adapted to the outer side 23 and the inner side 24 of the tubular section, respectively, so that a contact surface is obtained that is greater than when using contact surfaces having a shape not adapted to the tubular sections.
  • the contact surfaces may be detachably connected with the connecting bracket and/or the legs thereof, such that they can for instance be adjusted or be replaced with contact surfaces having a different configuration, for instance for adaptation to a different tubular section 1. As a result, the hoisting clamp 6 is rendered more universally applicable.
  • each contact surface 13, 14 may also be built up from a series of contact surfaces which are arranged next to each other on a bracket or directly on the connecting bracket.
  • the or each contact surface may be provided with a covering, for instance of an elastomer or other relatively soft material, such as a plastic material, so that damage to the tubular section can be further prevented and moreover some friction can be obtained, or a magnetic material.
  • the center of gravity is preferably located near, in particular in, the rotation axis 19.
  • the clamp in free position remains in any desired position, so that despite a high weight it can yet be simply turned manually. In a simple manner, this prevents overturning of the hoisting clamp upon detachment from the object to be lifted.
  • the ballast arm 20 with weights is preferably detachable, so that when using a different hoisting clamp, at any rate different contact surfaces, the center of gravity can be placed near the axis 19 again.
  • a hoisting clamp according to the invention can be used with any type of hoisting mechanism, for instance a crane or hoist, a crab or the like, and may optionally be combined with for instance a spreader.
  • the first and second hoisting cable 5, 7 may be provided on different hoisting mechanisms.
  • each contact surface, in bent design can for instance have a radius of a few centimeters to a few meters.
  • the hoisting cables 5, 7 may be designed differently, for instance as chains, ropes or the like.
  • the two hoisting cables may be suspended from an adjustable suspension point, for instance a winch with which the length of one of the hoisting cables can be set with respect to the other.
  • the first hoisting cable can be connected to the tubular section at a different position, preferably on a side of a centre of gravity thereof remote from the second end, such that the tubular section, when suspended alone from the first hoisting cable, tilts with its longitudinal direction into a desired position, in particular an approximately vertical position.
  • a hoisting clamp can be manufactured, for instance, from metal or other material, and may be shaped differently.
  • the contact surfaces may be shaped differently, for instance depending on the profile of the tubular section to be lifted.
  • two may be arranged next to each other, with the locking bracket between them, or vice versa.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Clamps And Clips (AREA)

Claims (12)

  1. Pince de levage, comprenant une première et une seconde parties de contact (11, 12), reliées mutuellement par un support de liaison (30), la première partie de contact (11) ayant une première surface de contact (13) et la seconde partie de contact (12) ayant une seconde surface de contact (14), lesquelles surfaces de contact (13, 14) se font face et ont une distance mutuelle (Z), alors qu'un support de blocage (15) est fourni, pouvant être déplacé relativement à au moins les première et seconde surfaces de contact (13, 14), alors que sur le support de blocage (15) un élément de levage (16) et une partie de pincement (17) sont fournies, à une distance l'un de l'autre, la partie de pincement (17) étant mobile de manière fonctionnelle contre un objet inséré entre les première et seconde surfaces de contact (13, 14) en exerçant une force de traction (F) sur l'élément de levage (16), caractérisé en ce que le support de blocage (15) fournit le pincement souhaité par déplacement relativement aux surfaces de contact (13, 14).
  2. Pince de levage selon la revendication 1, dans laquelle un espace d'insertion (18) est défini par les première et seconde surfaces de contact (13, 14) et le support de liaison (30), alors que la partie de pincement (17) est mobile dans ledit espace d'insertion (18).
  3. Pince de levage selon l'une quelconque des revendications précédentes, dans laquelle le support de blocage (15) peut tourner autour d'un axe de rotation (19), alors que la partie de pincement (17) et l'élément de levage (16) sont situés sur des côtés opposés de l'axe de rotation (19).
  4. Pince de levage selon l'une quelconque des revendications précédentes, dans laquelle un arrêt est fourni pour limiter la liberté de mouvement du support de blocage (15) relativement au support de liaison (30) et/ou aux surfaces de contact (13, 14).
  5. Pince de levage selon l'une quelconque des revendications précédentes, dans laquelle le support de blocage (15) est relié au support de liaison (30) à une distance des surfaces de contact (13, 14), de préférence à l'extérieur d'un espace d'insertion (18) défini par les surfaces de contact (13, 14) et le support de liaison (30).
  6. Pince de levage selon l'une quelconque des revendications précédentes, dans laquelle le support de liaison (30) est légèrement en forme de U, ayant une première et une seconde pattes (21A, 21B), la première surface de contact (13) étant fixée sur la première patte (21A) et la seconde surface de contact (14) étant fixée sur la seconde patte (21B).
  7. Pince de levage selon la revendication 6, dans laquelle les pattes (21A, 21B) ont chacune une direction longitudinale, lesquelles directions longitudinales sont parallèles, et la première patte (21A) est plus longue que la seconde patte (21B), mesurées dans la direction longitudinale respective, alors que les première et seconde surfaces de contact (13, 14) sont agencées adjacentes à une extrémité libre (23/24) des première et seconde pattes (21A, 21B), respectivement.
  8. Pince de levage selon la revendication 6 ou 7, dans laquelle les première et seconde pattes (21A, 21B) sont reliées mutuellement par une pièce transversale (22), alors que le support de blocage (15) est lié à, et en particulier fixé sur, la pièce transversale (22).
  9. Pince de levage selon l'une quelconque des revendications précédentes, dans laquelle les première et/ou seconde surfaces de contact (13, 14) sont courbées ou inclinées, de telle manière qu'elles définissent des profils parallèles dans au moins une direction.
  10. Pince de levage selon l'une quelconque des revendications précédentes, dans laquelle les première et/ou seconde surfaces de contact (13, 14) sont reliés de manière amovible au support de liaison (30).
  11. Mécanisme de levage pourvu d'une pince de levage selon l'une quelconque des revendications précédentes, dans lequel sont fournis en outre au moins un premier câble de levage (5) ou chaîne de levage (5) par lequel la pince de levage est suspendue et un second câble de levage (7) ou chaîne de levage (7) pourvu de moyens de fixation pour couplage à un objet à soulever.
  12. Mécanisme de levage selon la revendication 11, dans lequel la longueur du second câble de levage (7) ou chaîne de levage (7) peut être réglée indépendamment de celle du premier câble de levage (5) ou chaîne de levage (5).
EP08150581A 2007-01-24 2008-01-24 Griffe de levage et machine de levage équipé avec celle-ci Active EP1953111B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1033275A NL1033275C2 (nl) 2007-01-24 2007-01-24 Hijsklem en hijsinrichting voorzien daarvan.

Publications (3)

Publication Number Publication Date
EP1953111A2 EP1953111A2 (fr) 2008-08-06
EP1953111A3 EP1953111A3 (fr) 2010-06-09
EP1953111B1 true EP1953111B1 (fr) 2013-01-02

Family

ID=38462430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08150581A Active EP1953111B1 (fr) 2007-01-24 2008-01-24 Griffe de levage et machine de levage équipé avec celle-ci

Country Status (2)

Country Link
EP (1) EP1953111B1 (fr)
NL (1) NL1033275C2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2398283B1 (es) * 2011-08-12 2014-02-06 Matis Hispania, S. A. Útil y procedimiento de manipulación de dovelas que forman los tramos de la torre de un aerogenerador
DE102011118498B4 (de) * 2011-11-15 2014-01-02 Axzion Gks Stahl + Maschinenbau Gmbh Haken zum Transport von Gegenständen
DE102016009269B4 (de) 2016-08-01 2018-05-03 Axzion Gks Stahl Und Maschinenbau Gmbh Befestigungsanordnung und Haken zum Transport von Gegenständen
EP3715309B1 (fr) 2019-03-25 2023-11-22 SpanSet Axzion GmbH Moyen de support
CN110790123B (zh) * 2019-11-29 2024-11-19 中船桂江造船有限公司 甲板室吊装结构及吊装方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1255887B (de) * 1965-04-03 1967-12-07 Wilhelm Scheidt Maschinenfabri Bundkippzange
US3333883A (en) * 1965-10-04 1967-08-01 Taiyu Shoji Kk Drum gripper
US3851358A (en) * 1973-10-01 1974-12-03 M Janosko Non-marring horizontal clamp
US3923333A (en) * 1974-08-16 1975-12-02 Morris Lamar Whaley Cable grip
US4000923A (en) * 1975-06-26 1977-01-04 Matt Baldwin Gabion basket emplacement apparatus and method
SU796153A1 (ru) * 1979-01-05 1981-01-15 Проектно-Технологический Трест"Оргтехстрой" Захватное устройство дл подъемаи МОНТАжА лЕСТНичНыХ МАРшЕй
SE446620B (sv) * 1982-01-22 1986-09-29 John Teodor Sonerud Rorleggningsredskap

Also Published As

Publication number Publication date
EP1953111A2 (fr) 2008-08-06
EP1953111A3 (fr) 2010-06-09
NL1033275C2 (nl) 2008-07-28

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