EP1780165A1 - Method and device for the assembly of a crane with a lifting jib - Google Patents

Method and device for the assembly of a crane with a lifting jib Download PDF

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Publication number
EP1780165A1
EP1780165A1 EP06356102A EP06356102A EP1780165A1 EP 1780165 A1 EP1780165 A1 EP 1780165A1 EP 06356102 A EP06356102 A EP 06356102A EP 06356102 A EP06356102 A EP 06356102A EP 1780165 A1 EP1780165 A1 EP 1780165A1
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EP
European Patent Office
Prior art keywords
lifting
cable
auxiliary
winch
boom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06356102A
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German (de)
French (fr)
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EP1780165B1 (en
Inventor
Michel Lissandre
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.)
Manitowoc Crane Group France SAS
Original Assignee
Potain SA
Manitowoc Crane Group France SAS
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Publication of EP1780165A1 publication Critical patent/EP1780165A1/en
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Publication of EP1780165B1 publication Critical patent/EP1780165B1/en
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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
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes

Definitions

  • the present invention generally relates to luffing jib cranes, of the type comprising a fixed or movable support structure, in particular a vertical mast, surmounted by an orientable rotating part about a vertical axis, consisting of a swiveling pivot, a luffing arrow pointing forwards and hinged at its rear end about a horizontal axis on the swivel pivot, with an arrow holder extending obliquely upwards and backwards from the revolving pivot, and a substantially horizontal against-arrow directed rearward and linked by its front end to the rotating pivot, the counter-boom bearing mechanisms of the crane, and an arrow lifting device being provided , the latter comprising a lifting winch belonging to said mechanisms, a lifting cable passing over the top of the boom carrier and in a lifting muffle connected by at least one lifting tie to the front part of the the boom, and the aforementioned mechanisms also comprising a hoist winch with lifting cable.
  • this invention is concerned with the mounting of the rotating part of such a luffing jib crane, and even more especially with the assembly of the components of the jib lifting device, and incidentally the mechanisms that equip the jib against, so the final assembly operations that make the crane operational.
  • the object of the present invention is to avoid the drawbacks previously described, and it is therefore intended to simplify the assembly of the additional elements of the rotating part of a luffing jib crane of the kind in question, in particular the mounting of the muffle and the cable of lifting, sling or temporary restraint slings, and line of tie rods, so as to reduce the assembly time and facilitate the work of the operator, while limiting the risk of accident.
  • the subject of the invention is essentially a method of mounting a luffing jib crane, of the type indicated in the introduction, according to which an auxiliary winch is used, in particular a winch carried by the rotating part of the crane.
  • this winch being equipped with an auxiliary cable of diameter substantially smaller than that of the hoisting and lifting cables, to carry out a cabling operation of the lifting muffle with the lifting cable and / or to carry out the assembly of at least one temporary sling, provided for the temporary retention of the boom, and / or to perform a mounting operation of the line of tie rods.
  • the operation of cabling of the lifting muffle consists, after having pre-wired in the workshop muffle lifting with the auxiliary cable diameter substantially less than that of the cable of lifting, to connect one end of the auxiliary cable to the lifting cable wound on the drum of the lifting winch, to connect the other end of the auxiliary cable to the auxiliary winch, and to simultaneously operate the lifting winch and the auxiliary winch so as to unroll the lifting cable and engage it in the lifting muffle, while the auxiliary cable is re-wound on the auxiliary winch.
  • the operation of mounting at least one temporary boom retaining sling consists, for each temporary sling, in storing a first sling element along the boom carrier and a second sling member, extending the first along the boom, the forward end of the second sling member being attached to the forward portion of the boom, attaching the upper end of the first member sling to the cable of the auxiliary winch, to operate this auxiliary winch in the direction of the winding of its cable to stretch the provisional sling, and to attach the upper end of the first sling element to the top of the boom carrier .
  • the elements of these slings are advantageously stored respectively on both sides of the boom carrier and the boom, and one proceeds successively to the assembly of the first provisional sling, and then to the assembly of the second provisional sling using the auxiliary winch and its cable.
  • the mounting operation of the line of tie rods consists, after passing the cable of the auxiliary winch on a pulley of forward direction of the arrow tying the end of the auxiliary cable to the lifting muffle, the rear end of the line of tie rods also being attached to the lifting muffle, actuating the auxiliary winch in the winding direction of its cable, and Operate the lifting winch in the direction of the unwinding of the rope, in such a way as to pull the lifting block towards the front, and finally hook the front end of the line of tie rods to the front part of the boom.
  • the auxiliary winch can also be used, in combination with a bracket supported by the platform of the mechanisms itself carried by the counter-boom, for the maintenance or the maintenance of the mechanisms carried by this counter-boom, the cable of the auxiliary winch being then directed to the gallows and guided along this gallows.
  • the subject of the invention is also a device for mounting a luffing jib crane intended for implementing the method defined above, this device essentially comprising an auxiliary winch carried by the party rotating the crane, this auxiliary winch being equipped with an auxiliary cable of diameter substantially smaller than that of lifting and lifting cables.
  • the auxiliary winch can in particular be mounted at the base of the crane boom holder.
  • the device also advantageously comprises, on the rotating part of the crane, means for guiding the auxiliary cable, in particular pulleys, adapted to the operations performed with the aid of the auxiliary winch and detailed above.
  • the invention also relates to a luffing jib crane, which is equipped with a mounting device with auxiliary winch, as defined above.
  • the invention thus facilitates the assembly operations of the crane, through the use of an auxiliary winch whose cable is smaller, and therefore more easily handled, than the hoisting cables of the load and raising of the boom, the same auxiliary winch being used during several assembly operations successively carried out.
  • the luffing jib crane shown in FIG. 1, is here a tower crane which comprises in known manner a base frame 2, fixed or mobile on the ground, above which a vertical mast 3 rises. At the top the mast 3 is mounted, by means of an orientation device, a rotating part 4, consisting mainly of a rotating pivot 5, an arrow holder 6, a counter-boom 7, a platform mechanisms 8 and a luffing boom 9.
  • the rotating pivot 5 is orientable about the vertical axis A of the mast 3. It supports a cab 10 of the crane.
  • the arrow holder 6, also designated as a "punch”, is integral with the rotating pivot 5 and extends from the latter upwards and obliquely with a backward inclination.
  • the counter-boom 7 extends substantially horizontally rearwardly from the pivoting pivot 5. It carries the platform of the mechanisms 8, as well as the counterweight 11. This against-arrow 7 is suspended from the arrow holder 6, in its rear part, by means of tie rods 12.
  • the luffing jib 9 constituted by a lattice structure for example of triangular section, has a hinged rear end, about a horizontal axis 15, on the rotary pivot 5.
  • the lifting winch 13 has a drum, around which is wound a lifting cable 16 which passes over pulleys 17 disposed at the top of the boom holder 6, and which also passes over the pulleys of a lifting block 18, located in before the arrow holder 6.
  • the lifting block 18 is connected, by a line of tie rods 19, to the front part or "point" of the luffing jib 9.
  • the hoist winch 14 has a drum on which is wound a hoisting rope 20, which passes over pulleys disposed on the boom holder 6, then is directed towards the tip of the luffing boom 9 and extends to a lifting hook 21, with or without hauling, the lifting loads being suspended from the hook 21 when using the crane.
  • This equipment includes, in particular, an auxiliary winch 22, mounted at the base of the boom holder 6, on one of the sides thereof.
  • the auxiliary winch 22 has a drum on which is wound an auxiliary cable 23, whose diameter is substantially smaller than the diameter of the cable for example, if the lifting cable 16 and the lifting cable 20 have a usual diameter of the order of 18 millimeters, the auxiliary cable 23 may have a diameter of 1 mm. order of 9 millimeters.
  • the equipment in question also comprises two temporary slings 24 retaining the boom 9, which are visible in Figure 3.
  • Each of these two temporary slings 24 comprises a first sling element 25, storable along the boom carrier 6, and a second sling member 26, storable along the arrow 9 (see the basic position I shown in Figure 3).
  • the two sling elements 25 and 26 are hinged together at a point 27 and the second sling element 26 is hinged at a point 28 on the front part of the boom 9.
  • One of the temporary slings 24 thus formed is stored on the right side of the arrow holder 6 and the arrow 9, while the other provisional sling 24 is stored symmetrically on the left side of the arrow holder 6 and the arrow 9.
  • the mounting equipment comprises, as shown in particular in Figure 5, a bracket 29 carried by the platform mechanisms 8, and used with one of the winches, as specified below.
  • the lifting muffle 18 has been prewired in the workshop with a temporary cable of small diameter, for example of the order of 9 millimeters, which is the auxiliary cable 23 initially separated from the auxiliary winch 22. It is then proceeded as 2 illustrates the final wiring of the lifting muffle 18.
  • the lifting muffle 18 being retained at the top of the boom holder 6, one end of the auxiliary cable 23 is connected to the lifting cable 16 plus the other end of the auxiliary cable 23 is attached to the drum of the auxiliary winch 22.
  • the electric control is then actuated with a diameter of about 18 millimeters, which is wound on the drum of the lifting winch.
  • auxiliary cable 23 winds on the drum of the auxiliary winch 22, while the lifting cable 16 is unrolled from the drum of the lifting winch 13.
  • the auxiliary cable 23 pulls the lifting cable 16 by driving through the lifting block 18, and bringing it on the pulleys of this block 18 where it comes to take the place of the auxiliary cable 23 provisionally installed.
  • the auxiliary cable 23 is separate from the lifting cable 16, which makes this auxiliary cable 23 available for the following operations.
  • the cable 23 of the auxiliary winch 22 is first pinned to the upper end 31 of the first sling member 25, while the front end of the second sling member 26 has already been attached. by broaching at 28 on the front part of the arrow 9. It then controls only the auxiliary winch 22, in the winding direction of its cable 23, which passes on a pulley 32 at the top of the boom holder 6, so gradually stretching the sling 24 through intermediate positions, such as that indicated in II. The sling 24 is thus stretched, being pulled upwards, until the upper end 31 of its first element 25 can be attached by broaching the top of the boom holder 6 (position III).
  • the first sling element 25 After the first sling element 25 has been thus attached to the top of the boom carrier 6, it is separated from the auxiliary cable 23, and the same operation is repeated on the other side of the crane, for mounting the second provisional sling 24.
  • the two temporary slings 24, thus installed, provide the provisional retention of the arrow 9, pending the following operation which consists of the installation of the line of tie rods 19.
  • FIG. 4 The mounting of the tie rods 19 is illustrated in FIG. 4.
  • the cable 23 of the auxiliary winch 22 passes over a deflection pulley 33 located towards the front of the boom 9, and the end 34 of this auxiliary cable 23 is moored to the lifting muffle 18, which is initially close to the top of the boom carrier 6.
  • the rear end 35 of the tie line 19 is attached to the lifting muffle 18, while its anterior end is still free. It is then proceeded to actuate the control of the auxiliary winch 22, in the direction of the winding of its cable 23, while the lifting winch 13 is actuated in the direction of unwinding of its cable 16.
  • the muffle of lift 18 is thus pulled forward by the auxiliary cable 23, which removes it from the arrow holder 6 and finally allows to hang the front end of the line of tie rods 19 to the front part of the arrow 9, as suggested in 30 in Figure 4.
  • the front part of the boom 9 will be connected to the lifting muffle 18 via the line of tie rods 19.
  • the jib 29 is used in combination with the auxiliary winch 22 and with its cable 23 of relatively small diameter. More particularly, the auxiliary cable 23, unwinding from the drum of the winch 22, is first directed rearward to the foot of the bracket 29, then it extends along the mast and the arm of this bracket 29 , with suitable guides and references by pulleys 36, 37 and 38.
  • the auxiliary cable 23 is thus usable for example, as shown in FIG. 5, for dismounting a winch, such as the hoisting winch 14.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Jib Cranes (AREA)

Abstract

The method involves using an auxiliary hoist (22) carried by a rotating part (4) of the crane and equipped of an auxiliary cable (23) of diameter lower than lifting and hoist cables to realize a cabling operation of a lifting block with the lifting cable. The hoist is used to realize the mounting operation of a temporary sling (24) for temporary retention of a boom (9), and realize mounting operation of a tie rod line. Independent claims are also included for the following: (1) a device for mounting a luffing crane (2) a luffing crane having luffing crane mounting device.

Description

La présente invention concerne, d'une manière générale, les grues à flèche relevable, du type comprenant une structure de support fixe ou mobile, en particulier un mât vertical, surmonté d'une partie tournante orientable autour d'un axe vertical, constituée d'un pivot tournant, d'une flèche relevable dirigée vers l'avant et articulée à son extrémité arrière autour d'un axe horizontal sur le pivot tournant, d'un porte-flèche s'étendant obliquement vers le haut et vers l'arrière à partir du pivot tournant, et d'une contre-flèche sensiblement horizontale dirigée vers l'arrière et liée par son extrémité avant au pivot tournant, la contre-flèche portant des mécanismes de la grue, et un dispositif de relevage de flèche étant prévu, ce dernier comprenant un treuil de relevage appartenant auxdits mécanismes, un câble de relevage passant sur le sommet du porte-flèche et dans une moufle de relevage reliée par au moins un tirant de relevage à la partie avant de la flèche, et les mécanismes précités comprenant aussi un treuil de levage avec câble de levage.The present invention generally relates to luffing jib cranes, of the type comprising a fixed or movable support structure, in particular a vertical mast, surmounted by an orientable rotating part about a vertical axis, consisting of a swiveling pivot, a luffing arrow pointing forwards and hinged at its rear end about a horizontal axis on the swivel pivot, with an arrow holder extending obliquely upwards and backwards from the revolving pivot, and a substantially horizontal against-arrow directed rearward and linked by its front end to the rotating pivot, the counter-boom bearing mechanisms of the crane, and an arrow lifting device being provided , the latter comprising a lifting winch belonging to said mechanisms, a lifting cable passing over the top of the boom carrier and in a lifting muffle connected by at least one lifting tie to the front part of the the boom, and the aforementioned mechanisms also comprising a hoist winch with lifting cable.

Plus particulièrement, cette invention s'intéresse au montage de la partie tournante d'une telle grue à flèche relevable, et encore plus spécialement au montage des composants du dispositif de relevage de flèche, et accessoirement des mécanismes qui équipent la contre-flèche, donc les opérations finales de montage qui rendent la grue opérationnelle.More particularly, this invention is concerned with the mounting of the rotating part of such a luffing jib crane, and even more especially with the assembly of the components of the jib lifting device, and incidentally the mechanisms that equip the jib against, so the final assembly operations that make the crane operational.

Une grue à flèche relevable, du genre ici concerné, est décrite par exemple dans la demande de brevet français FR 2641773 A au nom du Demandeur, ou dans le brevet européen correspondant EP 0379448 A .A luffing jib crane, of the kind in question here, is described for example in the patent application French FR 2641773 A in the name of the Applicant, or in the corresponding European patent EP 0379448 A .

Pour effectuer le montage d'une telle grue à flèche relevable, sur un lieu d'utilisation et notamment sur un chantier de construction, il est procédé d'abord à l'assemblage de la structure principale de la grue, comprenant le châssis de base, le mât, la contre-flèche et le porte-flèche, ces opérations étant effectuées à l'aide d'un engin auxiliaire de levage, qui est habituellement un camion-grue avec grue hydraulique. Ensuite, la flèche est montée, en étant retenue temporairement par au moins une élingue provisoire la reliant au sommet du porte-flèche. Il faut alors terminer le montage par les opérations suivantes :

  • montage d'une élingue provisoire ou des élingues provisoires de retenue de la flèche,
  • installation du câble de relevage de la flèche dans la moufle de relevage,
  • montage de la ligne de tirants définitive, à relier à la moufle et au câble de relevage,
  • démontage de l'élingue provisoire ou des élingues provisoires,
  • passage du câble de levage dans les poulies correspondantes.
To mount such a luffing jib crane, at a place of use and in particular on a construction site, it is proceeded first to the assembly of the main structure of the crane, comprising the base frame , the mast, the counter-boom and the boom carrier, these operations being performed using an auxiliary hoist, which is usually a crane truck with hydraulic crane. Then, the boom is mounted, being temporarily retained by at least one temporary sling connecting it to the top of the boom carrier. It is then necessary to finish the assembly by the following operations:
  • installation of a temporary sling or temporary slings for retaining the boom,
  • installation of the boom lift cable in the lift block,
  • assembly of the final tie line, to be connected to the muffle and the lifting cable,
  • dismantling the temporary sling or temporary slings,
  • passage of the lifting cable in the corresponding pulleys.

De plus, il convient d'assurer, sur la plateforme destinée à les recevoir, l'entretien et la maintenance des mécanismes équipant la contre-flèche.In addition, it is advisable to ensure, on the platform intended to receive them, the maintenance and the maintenance of the mechanisms equipping the counter-arrow.

Ces opérations manuelles s'effectuent habituellement à l'aide du treuil de levage de la grue, déjà mis en place, treuil qui peut lever des charges très importantes. Ce treuil est ainsi équipé d'un câble de levage de gros diamètre, typiquement un câble d'un diamètre de l'ordre de 18 millimètres, qui par conséquent est un câble lourd et difficile à manipuler. Ainsi, les opérations finales de montage d'une grue à flèche relevable restent, pour l'opérateur, des opérations longues et pénibles, qui comportent des risques d'accident.These manual operations are usually carried out using the crane hoist winch, already in place, winch that can lift very large loads. This winch is thus equipped with a large diameter lifting cable, typically a cable with a diameter of the order of 18 millimeters, which consequently is a heavy cable and difficult to handle. Thus, the final operations of mounting a luffing jib crane remain, for the operator, long and arduous operations, which involve risks of accident.

La présente invention vise à éviter les inconvénients précédemment exposés, et elle a donc pour but de simplifier le montage des éléments additionnels de la partie tournante d'une grue à flèche relevable du genre concerné, en particulier le montage de la moufle et du câble de relevage, de l'élingue ou des élingues provisoires de retenue, et de la ligne de tirants, de manière à réduire le temps de montage et à faciliter le travail de l'opérateur, tout en limitant les risques d'accident.The object of the present invention is to avoid the drawbacks previously described, and it is therefore intended to simplify the assembly of the additional elements of the rotating part of a luffing jib crane of the kind in question, in particular the mounting of the muffle and the cable of lifting, sling or temporary restraint slings, and line of tie rods, so as to reduce the assembly time and facilitate the work of the operator, while limiting the risk of accident.

A cet effet, l'invention a essentiellement pour objet un procédé de montage d'une grue à flèche relevable, du genre indiqué en introduction, procédé selon lequel on utilise un treuil auxiliaire, en particulier un treuil porté par la partie tournante de la grue, ce treuil étant équipé d'un câble auxiliaire de diamètre sensiblement plus petit que celui des câbles de levage et de relevage, pour réaliser une opération de câblage de la moufle de relevage avec le câble de relevage et/ou pour réaliser le montage d'au moins une élingue provisoire, prévue pour la retenue provisoire de la flèche, et/ou pour réaliser une opération de montage de la ligne de tirants.For this purpose, the subject of the invention is essentially a method of mounting a luffing jib crane, of the type indicated in the introduction, according to which an auxiliary winch is used, in particular a winch carried by the rotating part of the crane. , this winch being equipped with an auxiliary cable of diameter substantially smaller than that of the hoisting and lifting cables, to carry out a cabling operation of the lifting muffle with the lifting cable and / or to carry out the assembly of at least one temporary sling, provided for the temporary retention of the boom, and / or to perform a mounting operation of the line of tie rods.

Selon le mode de mise en oeuvre du procédé de l'invention, l'opération de câblage de la moufle de relevage consiste, après avoir pré-câblé en atelier la moufle de relevage avec le câble auxiliaire de diamètre sensiblement inférieur à celui du câble de relevage, à relier une extrémité du câble auxiliaire au câble de relevage enroulé sur le tambour du treuil de relevage, à relier l'autre extrémité du câble auxiliaire au treuil auxiliaire, et à actionner simultanément le treuil de relevage et le treuil auxiliaire de manière à dérouler le câble de relevage et à l'engager dans la moufle de relevage, tandis que la câble auxiliaire est ré-enroulé sur le treuil auxiliaire.According to the mode of implementation of the method of the invention, the operation of cabling of the lifting muffle consists, after having pre-wired in the workshop muffle lifting with the auxiliary cable diameter substantially less than that of the cable of lifting, to connect one end of the auxiliary cable to the lifting cable wound on the drum of the lifting winch, to connect the other end of the auxiliary cable to the auxiliary winch, and to simultaneously operate the lifting winch and the auxiliary winch so as to unroll the lifting cable and engage it in the lifting muffle, while the auxiliary cable is re-wound on the auxiliary winch.

Selon un autre mode de mise en oeuvre du procédé de l'invention, l'opération de montage d'au moins une élingue provisoire de retenue de la flèche consiste, pour chaque élingue provisoire, à stocker un premier élément d'élingue le long du porte-flèche et un second élément d'élingue, prolongeant le premier, le long de la flèche, l'extrémité avant du second élément d'élingue étant attachée sur la partie avant de la flèche, à attacher l'extrémité supérieure du premier élément d'élingue au câble du treuil auxiliaire, à actionner ce treuil auxiliaire dans le sens de l'enroulement de son câble pour tendre l'élingue provisoire, et à attacher l'extrémité supérieure du premier élément d'élingue au sommet du porte-flèche.According to another embodiment of the method of the invention, the operation of mounting at least one temporary boom retaining sling consists, for each temporary sling, in storing a first sling element along the boom carrier and a second sling member, extending the first along the boom, the forward end of the second sling member being attached to the forward portion of the boom, attaching the upper end of the first member sling to the cable of the auxiliary winch, to operate this auxiliary winch in the direction of the winding of its cable to stretch the provisional sling, and to attach the upper end of the first sling element to the top of the boom carrier .

Dans le cas où sont prévues deux élingues provisoires, les éléments de ces élingues sont avantageusement stockés respectivement sur les deux côtés du porte-flèche et de la flèche, et l'on procède successivement au montage de la première élingue provisoire, puis au montage de la seconde élingue provisoire à l'aide du treuil auxiliaire et de son câble.In the case where two temporary slings are provided, the elements of these slings are advantageously stored respectively on both sides of the boom carrier and the boom, and one proceeds successively to the assembly of the first provisional sling, and then to the assembly of the second provisional sling using the auxiliary winch and its cable.

Selon encore un autre mode de mise en oeuvre du procédé de l'invention, l'opération de montage de la ligne de tirants consiste, après avoir fait passer le câble du treuil auxiliaire sur une poulie de renvoi située vers l'avant de la flèche, à amarrer l'extrémité du câble auxiliaire sur la moufle de relevage, l'extrémité postérieure de la ligne de tirants étant aussi attachée à la moufle de relevage, à actionner le treuil auxiliaire dans le sens de l'enroulement de son câble et à actionner le treuil de relevage dans le sens du déroulement de son câble, de manière à tirer la moufle de relevage vers l'avant, et à accrocher finalement l'extrémité antérieure de la ligne de tirants à la partie avant de la flèche.According to yet another embodiment of the method of the invention, the mounting operation of the line of tie rods consists, after passing the cable of the auxiliary winch on a pulley of forward direction of the arrow tying the end of the auxiliary cable to the lifting muffle, the rear end of the line of tie rods also being attached to the lifting muffle, actuating the auxiliary winch in the winding direction of its cable, and Operate the lifting winch in the direction of the unwinding of the rope, in such a way as to pull the lifting block towards the front, and finally hook the front end of the line of tie rods to the front part of the boom.

Le treuil auxiliaire peut également être utilisé, en combinaison avec une potence portée par la plateforme des mécanismes elle-même portée par la contre-flèche, pour l'entretien ou la maintenance des mécanismes portés par cette contre-flèche, le câble du treuil auxiliaire étant alors dirigé vers la potence et guidé le long de cette potence.The auxiliary winch can also be used, in combination with a bracket supported by the platform of the mechanisms itself carried by the counter-boom, for the maintenance or the maintenance of the mechanisms carried by this counter-boom, the cable of the auxiliary winch being then directed to the gallows and guided along this gallows.

L'invention a aussi pour objet un dispositif de montage d'une grue à flèche relevable, destiné à la mise en oeuvre du procédé défini ci-dessus, ce dispositif comprenant essentiellement un treuil auxiliaire porté par la partie tournante de la grue, ce treuil auxiliaire étant équipé d'un câble auxiliaire de diamètre sensiblement plus petit que celui des câbles de levage et de relevage. Le treuil auxiliaire peut notamment être monté à la base du porte-flèche de la grue.The subject of the invention is also a device for mounting a luffing jib crane intended for implementing the method defined above, this device essentially comprising an auxiliary winch carried by the party rotating the crane, this auxiliary winch being equipped with an auxiliary cable of diameter substantially smaller than that of lifting and lifting cables. The auxiliary winch can in particular be mounted at the base of the crane boom holder.

Le dispositif comprend encore avantageusement, sur la partie tournante de la grue, des moyens de guidage du câble auxiliaire, en particulier des poulies, adaptés aux opérations réalisées à l'aide du treuil auxiliaire et détaillées ci-dessus.The device also advantageously comprises, on the rotating part of the crane, means for guiding the auxiliary cable, in particular pulleys, adapted to the operations performed with the aid of the auxiliary winch and detailed above.

Enfin, l'invention a également pour objet une grue à flèche relevable, laquelle est équipée d'un dispositif de montage avec treuil auxiliaire, tel que défini précédemment.Finally, the invention also relates to a luffing jib crane, which is equipped with a mounting device with auxiliary winch, as defined above.

Dans l'ensemble, l'invention facilite ainsi les opérations de montage de la grue, grâce à l'utilisation d'un treuil auxiliaire dont le câble est moins gros, donc plus facilement manipulable, que les câbles de levage de la charge et de relevage de la flèche, le même treuil auxiliaire étant utilisé au cours de plusieurs opérations de montage successivement réalisées.Overall, the invention thus facilitates the assembly operations of the crane, through the use of an auxiliary winch whose cable is smaller, and therefore more easily handled, than the hoisting cables of the load and raising of the boom, the same auxiliary winch being used during several assembly operations successively carried out.

L'invention sera mieux comprise à l'aide de la description qui suit, en référence au dessin schématique annexé illustrant, à titre d'exemple, un mode de mise en oeuvre de ce procédé de montage d'une grue à flèche relevable :

  • Figure 1 est une vue d'ensemble, de côté, d'une grue à tour à flèche relevable susceptible d'être montée par le procédé selon l'invention ;
  • Figure 2 est un schéma illustrant l'opération de câblage de la moufle de relevage de la flèche d'une telle grue ;
  • Figure 3 est un schéma illustrant, dans ses phases successives, l'opération de montage des élingues provisoires de retenue de la flèche ;
  • Figure 4 est un schéma illustrant l'opération de montage de la ligne de tirants ;
  • Figure 5 est un dernier schéma, illustrant l'opération d'entretien des mécanismes équipant la contre-flèche.
The invention will be better understood with the aid of the description which follows, with reference to the appended schematic drawing illustrating, by way of example, one embodiment of this method of mounting a luffing jib crane:
  • Figure 1 is an overall view, from the side, of a luffing tower tower crane capable of being mounted by the method according to the invention;
  • Figure 2 is a diagram illustrating the wiring operation of the boom lifting muffle of such a crane;
  • Figure 3 is a diagram illustrating, in its successive phases, the mounting operation of the temporary slings retaining the boom;
  • Figure 4 is a diagram illustrating the assembly operation of the line of tie rods;
  • Figure 5 is a final diagram, illustrating the maintenance operation of the mechanisms equipping the against-arrow.

La grue à flèche relevable, représentée sur la figure 1, est ici une grue à tour qui comprend de façon connue un châssis de base 2, fixe ou mobile sur le sol, au-dessus duquel s'élève un mât vertical 3. Au sommet du mât 3 est montée, par l'intermédiaire d'un dispositif d'orientation, une partie tournante 4, constituée principalement d'un pivot tournant 5, d'un porte-flèche 6, d'une contre-flèche 7, d'une plateforme des mécanismes 8 et d'une flèche relevable 9.The luffing jib crane, shown in FIG. 1, is here a tower crane which comprises in known manner a base frame 2, fixed or mobile on the ground, above which a vertical mast 3 rises. At the top the mast 3 is mounted, by means of an orientation device, a rotating part 4, consisting mainly of a rotating pivot 5, an arrow holder 6, a counter-boom 7, a platform mechanisms 8 and a luffing boom 9.

Le pivot tournant 5 est orientable autour de l'axe vertical A du mât 3. Il supporte une cabine de conduite 10 de la grue.The rotating pivot 5 is orientable about the vertical axis A of the mast 3. It supports a cab 10 of the crane.

Le porte-flèche 6, aussi désigné comme "poinçon", est solidaire du pivot tournant 5 et s'étend à partir de ce dernier vers le haut et en oblique avec une inclinaison vers l'arrière.The arrow holder 6, also designated as a "punch", is integral with the rotating pivot 5 and extends from the latter upwards and obliquely with a backward inclination.

La contre-flèche 7 s'étend sensiblement horizontalement vers l'arrière, à partir du pivot tournant 5. Elle porte la plateforme des mécanismes 8, ainsi que des contrepoids 11. Cette contre-flèche 7 est suspendue au porte-flèche 6, dans sa partie arrière, au moyen de tirants de liaison 12.The counter-boom 7 extends substantially horizontally rearwardly from the pivoting pivot 5. It carries the platform of the mechanisms 8, as well as the counterweight 11. This against-arrow 7 is suspended from the arrow holder 6, in its rear part, by means of tie rods 12.

Sur la plateforme des mécanismes 8, également visible sur la figure 5, sont montés divers équipements qui comprennent, en particulier, un treuil de relevage 13 de la flèche 9 et un treuil de levage 14 des charges.On the platform of the mechanisms 8, also visible in Figure 5, are mounted various equipment which include, in particular, a lifting winch 13 of the boom 9 and a hoist 14 lifting loads.

La flèche relevable 9, constituée par une structure en treillis par exemple de section triangulaire, possède une extrémité arrière articulée, autour d'un axe horizontal 15, sur le pivot tournant 5.The luffing jib 9, constituted by a lattice structure for example of triangular section, has a hinged rear end, about a horizontal axis 15, on the rotary pivot 5.

Le treuil de relevage 13 possède un tambour, autour duquel est enroulé un câble de relevage 16 qui passe sur des poulies 17 disposées au sommet du porte-flèche 6, et qui passe aussi sur les poulies d'une moufle de relevage 18, située en avant du porte-flèche 6. La moufle de relevage 18 est reliée, par une ligne de tirants 19, à la partie avant ou "pointe" de la flèche relevable 9.The lifting winch 13 has a drum, around which is wound a lifting cable 16 which passes over pulleys 17 disposed at the top of the boom holder 6, and which also passes over the pulleys of a lifting block 18, located in before the arrow holder 6. The lifting block 18 is connected, by a line of tie rods 19, to the front part or "point" of the luffing jib 9.

Le treuil de levage 14 possède un tambour sur lequel est enroulé un câble de levage 20, lequel passe sur des poulies disposées sur le porte-flèche 6, puis est dirigé vers la pointe de la flèche relevable 9 et s'étend jusqu'à un crochet de levage 21, avec ou sans mouflage, les charges à lever étant suspendues au crochet 21 lors de l'utilisation de la grue.The hoist winch 14 has a drum on which is wound a hoisting rope 20, which passes over pulleys disposed on the boom holder 6, then is directed towards the tip of the luffing boom 9 and extends to a lifting hook 21, with or without hauling, the lifting loads being suspended from the hook 21 when using the crane.

La grue à flèche relevable ayant ainsi été décrite dans sa configuration entièrement montée, on décrira maintenant les équipements additionnels permettant le montage de cette grue.The luffing jib crane has thus been described in its fully assembled configuration, we will now describe the additional equipment for mounting this crane.

Ces équipements comprennent, en particulier, un treuil auxiliaire 22, monté à la base du porte-flèche 6, sur l'un des côtés de celui-ci. Le treuil auxiliaire 22 possède un tambour sur lequel est enroulable un câble auxiliaire 23, dont le diamètre est sensiblement inférieur au diamètre du câble de relevage 16 et au diamètre du câble de levage 20. Par exemple, si le câble de relevage 16 et le câble de levage 20 possèdent un diamètre habituel de l'ordre de 18 millimètres, le câble auxiliaire 23 peut posséder un diamètre de l'ordre de 9 millimètres.This equipment includes, in particular, an auxiliary winch 22, mounted at the base of the boom holder 6, on one of the sides thereof. The auxiliary winch 22 has a drum on which is wound an auxiliary cable 23, whose diameter is substantially smaller than the diameter of the cable for example, if the lifting cable 16 and the lifting cable 20 have a usual diameter of the order of 18 millimeters, the auxiliary cable 23 may have a diameter of 1 mm. order of 9 millimeters.

Les équipements en question comprennent encore deux élingues provisoires 24 de retenue de la flèche 9, qui sont visibles sur la figure 3. Chacune de ces deux élingues provisoires 24 comprend un premier élément d'élingue 25, stockable le long du porte-flèche 6, et un second élément d'élingue 26, stockable le long de la flèche 9 (voir la position de base I indiquée sur la figure 3). Les deux éléments d'élingue 25 et 26 sont articulés entre eux en un point 27 et le second élément d'élingue 26 est articulé en un point 28 sur la partie avant de la flèche 9. L'une des élingues provisoires 24 ainsi constituée est stockée sur le côté droit du porte-flèche 6 et de la flèche 9, tandis que l'autre élingue provisoire 24 est stockée symétriquement sur le côté gauche du porte-flèche 6 et de la flèche 9.The equipment in question also comprises two temporary slings 24 retaining the boom 9, which are visible in Figure 3. Each of these two temporary slings 24 comprises a first sling element 25, storable along the boom carrier 6, and a second sling member 26, storable along the arrow 9 (see the basic position I shown in Figure 3). The two sling elements 25 and 26 are hinged together at a point 27 and the second sling element 26 is hinged at a point 28 on the front part of the boom 9. One of the temporary slings 24 thus formed is stored on the right side of the arrow holder 6 and the arrow 9, while the other provisional sling 24 is stored symmetrically on the left side of the arrow holder 6 and the arrow 9.

Enfin, les équipements de montage comprennent, comme le montre notamment la figure 5, une potence 29 portée par la plateforme des mécanismes 8, et utilisable avec l'un des treuils, comme précisé ci-après.Finally, the mounting equipment comprises, as shown in particular in Figure 5, a bracket 29 carried by the platform mechanisms 8, and used with one of the winches, as specified below.

Le mode opératoire, utilisant les équipements de montage précédemment décrits, est le suivant.The procedure, using the editing equipment described above, is as follows.

En premier lieu, la moufle de relevage 18 a été précâblée en atelier avec un câble provisoire de petit diamètre, par exemple de l'ordre de 9 millimètres, qui est le câble auxiliaire 23 initialement séparé du treuil auxiliaire 22. Il est alors procédé comme l'illustre la figure 2 au câblage définitif de la moufle de relevage 18. A cet effet, la moufle de relevage 18 se trouvant retenue au sommet du porte-flèche 6, une extrémité du câble auxiliaire 23 est reliée au câble de relevage 16 plus gros, ayant par exemple un diamètre de l'ordre de 18 millimètres, lequel est enroulé sur le tambour du treuil de relevage 13. L'autre extrémité du câble auxiliaire 23 est attachée au tambour du treuil auxiliaire 22. On actionne alors la commande électrique simultanée des deux treuils 13 et 22, de telle sorte que le câble auxiliaire 23 s'enroule sur le tambour du treuil auxiliaire 22, tandis que le câble de relevage 16 se déroule du tambour du treuil de relevage 13. Ainsi, le câble auxiliaire 23 tire le câble de relevage 16 en l'entraînant au travers de la moufle de relevage 18, et en l'amenant sur les poulies de cette moufle 18 où il vient prendre la place du câble auxiliaire 23 provisoirement installé. Enfin, le câble auxiliaire 23 est séparé du câble de relevage 16, ce qui rend ce câble auxiliaire 23 disponible pour les opérations suivantes.In the first place, the lifting muffle 18 has been prewired in the workshop with a temporary cable of small diameter, for example of the order of 9 millimeters, which is the auxiliary cable 23 initially separated from the auxiliary winch 22. It is then proceeded as 2 illustrates the final wiring of the lifting muffle 18. For this purpose, the lifting muffle 18 being retained at the top of the boom holder 6, one end of the auxiliary cable 23 is connected to the lifting cable 16 plus the other end of the auxiliary cable 23 is attached to the drum of the auxiliary winch 22. The electric control is then actuated with a diameter of about 18 millimeters, which is wound on the drum of the lifting winch. simultaneous of the two winches 13 and 22, so that the auxiliary cable 23 winds on the drum of the auxiliary winch 22, while the lifting cable 16 is unrolled from the drum of the lifting winch 13. Ain if, the auxiliary cable 23 pulls the lifting cable 16 by driving through the lifting block 18, and bringing it on the pulleys of this block 18 where it comes to take the place of the auxiliary cable 23 provisionally installed. Finally, the auxiliary cable 23 is separate from the lifting cable 16, which makes this auxiliary cable 23 available for the following operations.

Ensuite, il est procédé au montage des deux élingues provisoires 24 de retenue de la flèche, ce qu'illustre la figure 3, en partant de la position de base l dan laquelle les éléments d'élingue 25 et 26 sont stockés, de chaque côté, respectivement le long du porte-flèche 6 et de la flèche 9.Then, it is proceeded to the mounting of the two temporary slings 24 retaining the boom, as shown in Figure 3, starting from the basic position in which the sling elements 25 and 26 are stored on each side respectively along the arrow holder 6 and the arrow 9.

Sur un premier côté, le câble 23 du treuil auxiliaire 22 est d'abord attaché par brochage à l'extrémité supérieure 31 du premier élément d'élingue 25, tandis que l'extrémité avant du second élément d'élingue 26 avait déjà été attachée par brochage en 28 sur la partie avant de la flèche 9. On commande alors uniquement le treuil auxiliaire 22, dans le sens de l'enroulement de son câble 23, qui passe sur une poulie 32 au sommet du porte-flèche 6, de manière à tendre progressivement l'élingue 24 en passant par des positions intermédiaires, telles que celle indiquée en II. L'élingue 24 est ainsi tendue, en étant tirée vers le haut, jusqu'à ce que l'extrémité supérieure 31 de son premier élément 25 puisse être attachée par brochage au sommet du porte-flèche 6 (position III).On one side, the cable 23 of the auxiliary winch 22 is first pinned to the upper end 31 of the first sling member 25, while the front end of the second sling member 26 has already been attached. by broaching at 28 on the front part of the arrow 9. It then controls only the auxiliary winch 22, in the winding direction of its cable 23, which passes on a pulley 32 at the top of the boom holder 6, so gradually stretching the sling 24 through intermediate positions, such as that indicated in II. The sling 24 is thus stretched, being pulled upwards, until the upper end 31 of its first element 25 can be attached by broaching the top of the boom holder 6 (position III).

Après que le premier élément d'élingue 25 a été ainsi attaché au sommet du porte-flèche 6, il est séparé du câble auxiliaire 23, et la même opération est répétée de l'autre côté de la grue, pour le montage de la seconde élingue provisoire 24. Les deux élingues provisoires 24, ainsi mises en place, assurent la retenue provisoire de la flèche 9, en attendant l'opération suivante qui consiste en l'installation de la ligne de tirants 19.After the first sling element 25 has been thus attached to the top of the boom carrier 6, it is separated from the auxiliary cable 23, and the same operation is repeated on the other side of the crane, for mounting the second provisional sling 24. The two temporary slings 24, thus installed, provide the provisional retention of the arrow 9, pending the following operation which consists of the installation of the line of tie rods 19.

Le montage des tirants 19 est illustré par la figure 4. Dans cette phase, le câble 23 du treuil auxiliaire 22 passe sur une poulie de renvoi 33 située vers l'avant de la flèche 9, et l'extrémité 34 de ce câble auxiliaire 23 est amarrée sur la moufle de relevage 18, qui initialement est proche du sommet du porte-flèche 6. L'extrémité postérieure 35 de la ligne de tirants 19 est attachée à la moufle de relevage 18, tandis que son extrémité antérieure est encore libre. Il est alors procédé à l'actionnement de la commande du treuil auxiliaire 22, dans le sens de l'enroulement de son câble 23, tandis que le treuil de relevage 13 est actionné dans le sens du déroulement de son câble 16. La moufle de relevage 18 est ainsi tirée vers l'avant par le câble auxiliaire 23, ce qui l'éloigne du porte-flèche 6 et permet finalement d'accrocher l'extrémité antérieure de la ligne de tirants 19 à la partie avant de la flèche 9, comme suggéré en 30 sur la figure 4. Ainsi, la partie avant de la flèche 9 se trouvera reliée à la moufle de relevage 18 par l'intermédiaire de la ligne de tirants 19.The mounting of the tie rods 19 is illustrated in FIG. 4. In this phase, the cable 23 of the auxiliary winch 22 passes over a deflection pulley 33 located towards the front of the boom 9, and the end 34 of this auxiliary cable 23 is moored to the lifting muffle 18, which is initially close to the top of the boom carrier 6. The rear end 35 of the tie line 19 is attached to the lifting muffle 18, while its anterior end is still free. It is then proceeded to actuate the control of the auxiliary winch 22, in the direction of the winding of its cable 23, while the lifting winch 13 is actuated in the direction of unwinding of its cable 16. The muffle of lift 18 is thus pulled forward by the auxiliary cable 23, which removes it from the arrow holder 6 and finally allows to hang the front end of the line of tie rods 19 to the front part of the arrow 9, as suggested in 30 in Figure 4. Thus, the front part of the boom 9 will be connected to the lifting muffle 18 via the line of tie rods 19.

Il devient alors possible de démonter les deux élingues provisoires 24, qui jusque là retenaient provisoirement la flèche 9.It then becomes possible to disassemble the two provisional slings 24, which hitherto temporarily retained the arrow 9.

Enfin, comme illustré par la figure 5, il peut être procédé, à l'aide de la potence 29 portée par la plateforme 8, à l'entretien des mécanismes portés par la contre-flèche 7. A cet effet, la potence 29 est utilisée en combinaison avec le treuil auxiliaire 22 et avec son câble 23 de relativement petit diamètre. Plus particulièrement, le câble auxiliaire 23, se déroulant du tambour du treuil 22, est d'abord dirigé vers l'arrière jusqu'au pied de la potence 29, puis il s'étend le long du mât et du bras de cette potence 29, avec des guidages et renvois convenables par des poulies 36, 37 et 38. Le câble auxiliaire 23 est ainsi utilisable par exemple, comme l'illustre la figure 5, pour le démontage d'un treuil, tel que le treuil de levage 14.Finally, as illustrated in FIG. 5, it is possible, with the help of the stem 29 carried by the platform 8, to maintain the mechanisms carried by the counter-jib 7. For this purpose, the jib 29 is used in combination with the auxiliary winch 22 and with its cable 23 of relatively small diameter. More particularly, the auxiliary cable 23, unwinding from the drum of the winch 22, is first directed rearward to the foot of the bracket 29, then it extends along the mast and the arm of this bracket 29 , with suitable guides and references by pulleys 36, 37 and 38. The auxiliary cable 23 is thus usable for example, as shown in FIG. 5, for dismounting a winch, such as the hoisting winch 14.

L'on ne s'éloignerait pas du cadre de l'invention, telle que définie dans les revendications annexées, en modifiant la position du treuil auxiliaire sur la partie tournante de la grue, ou en utilisant des câbles de diamètres autres que ceux indiqués, ou en utilisant une seule élingue provisoire, au lieu de deux, ou encore en modifiant l'ordre de certaines opérations de montage de la grue.One would not depart from the scope of the invention, as defined in the appended claims, by changing the position of the auxiliary winch on the rotating part of the crane, or by using cables of diameters other than those indicated, or using only one temporary sling, instead of two, or by changing the order of certain crane mounting operations.

Claims (10)

Procédé de montage d'une grue à flèche relevable, la grue comprenant une structure de support fixe ou mobile, en particulier un mât vertical (3), surmonté d'une partie tournante (4) orientable autour d'un axe vertical (A), constituée d'un pivot tournant (5), d'une flèche relevable (9) dirigée vers l'avant et articulée à son extrémité arrière autour d'un axe horizontal (15) sur le pivot tournant (5), d'un porte-flèche (6) s'étendant obliquement vers le haut et vers l'arrière à partir du pivot tournant (5), et d'une contre-flèche (7) sensiblement horizontale dirigée vers l'arrière et liée par son extrémité avant au pivot tournant (5), la contre-flèche (7) portant des mécanismes (8) de la grue, et un dispositif de relevage de flèche étant prévu, ce dernier comprenant un treuil de relevage (13) appartenant auxdits mécanismes, un câble de relevage (16) passant sur le sommet du porte-flèche (6) et dans une moufle de relevage (18) reliée par au moins un tirant de relevage (19) à la partie avant de la flèche (9), et les mécanismes précités comprenant aussi un treuil de levage (14) avec câble de levage (20), caractérisé en ce que l'on utilise un treuil auxiliaire (22), en particulier un treuil porté par la partie tournante (4) de la grue, ce treuil (22) étant équipé d'un câble auxiliaire (23) de diamètre sensiblement plus petit que celui des câbles de levage (20) et de relevage (16), pour réaliser une opération de câblage de la moufle de relevage (18) avec le câble de relevage (16) et/ou pour réaliser une opération de montage d'au moins une élingue provisoire (24), prévue pour la retenue provisoire de la flèche (9), et/ou pour réaliser une opération de montage de la ligne de tirants (19).Method of mounting a luffing jib crane, the crane comprising a fixed or movable support structure, in particular a vertical mast (3), surmounted by a rotating part (4) orientable about a vertical axis (A) , consisting of a rotating pivot (5), a luffing arrow (9) directed towards the front and articulated at its rear end about a horizontal axis (15) on the rotary pivot (5), a boom carrier (6) extending obliquely upwardly and rearwardly from the rotary pivot (5), and a substantially horizontally directed rearward jib (7) connected by its forward end at the rotary pivot (5), the counter-jib (7) carrying mechanisms (8) of the crane, and an arrow lifting device being provided, the latter comprising a lifting winch (13) belonging to said mechanisms, a cable lifting device (16) passing over the top of the boom carrier (6) and in a lifting muffle (18) connected by at least one tie rod lifting device (19) at the front part of the boom (9), and the aforesaid mechanisms also comprising a hoisting winch (14) with lifting cable (20), characterized in that an auxiliary winch (22) is used. ), in particular a winch carried by the rotating part (4) of the crane, this winch (22) being equipped with an auxiliary cable (23) of diameter substantially smaller than that of the lifting (20) and lifting cables (16), for performing a cabling operation of the lifting muffle (18) with the lifting cable (16) and / or for performing a mounting operation of at least one temporary sling (24), provided for the restraint Provision of the arrow (9), and / or to perform a mounting operation of the line of tie rods (19). Procédé selon la revendication 1, caractérisé en ce que l'opération de câblage de la moufle de relevage (18) consiste, après avoir pré-câblé en atelier la moufle de relevage (18) avec le câble auxiliaire (23) de diamètre sensiblement inférieur à celui du câble de relevage (16), à relier une extrémité du câble auxiliaire (23) au câble de relevage (16) enroulé sur le tambour du treuil de relevage (13), à relier l'autre extrémité du câble auxiliaire (23) au treuil auxiliaire (22), et à actionner simultanément le treuil de relevage (13) et le treuil auxiliaire (22) de manière à dérouler le câble de relevage (16) et à l'engager dans la moufle de relevage (18), tandis que le câble auxiliaire (23) est ré-enroulé sur le treuil auxiliaire (22).A method according to claim 1, characterized in that the cabling operation of the lifting muffle (18) consists, after having pre-wired in the workshop the lifting muffle (18) with the auxiliary cable (23) of substantially smaller diameter to that of the lifting cable (16), connecting one end of the auxiliary cable (23) to the lifting cable (16) wound on the drum of the lifting winch (13), to connect the other end of the auxiliary cable (23). ) to the auxiliary winch (22), and to simultaneously operate the lifting winch (13) and the auxiliary winch (22) so as to unroll the lifting cable (16) and engage it in the lifting block (18) , while the auxiliary cable (23) is re-wound on the auxiliary winch (22). Procédé selon la revendication 1 ou 2, caractérisé en ce que l'opération de montage d'au moins une élingue provisoire (24) de retenue de la flèche (9) consiste, pour chaque élingue provisoire (24), à stocker un premier élément d'élingue (25) le long du porte-flèche (6) et un second élément d'élingue (26), prolongeant le premier, le long de la flèche (9), l'extrémité avant du second élément d'élingue (25) étant attachée (28) sur la partie avant de la flèche (9), à attacher l'extrémité supérieure (31) du premier élément d'élingue (25) au câble (23) du treuil auxiliaire (22), à actionner ce treuil auxiliaire (22) dans le sens de l'enroulement de son câble (23) pour tendre l'élingue provisoire (24), et à attacher l'extrémité supérieure (31) du premier élément d'élingue (25) au sommet du porte-flèche (6).Method according to claim 1 or 2, characterized in that the mounting operation of at least one temporary sling (24) for retaining the boom (9) consists, for each provisional sling (24), in storing a first element sling (25) along the boom carrier (6) and a second sling element (26), extending the first, along the boom (9), the forward end of the second sling element ( 25) being attached (28) to the front part of the boom (9), to attach the upper end (31) of the first sling element (25) to the cable (23) of the auxiliary winch (22), to be actuated this auxiliary winch (22) in the winding direction of its cable (23) to tension the temporary sling (24), and to attach the upper end (31) of the first sling element (25) to the top the arrow holder (6). Procédé selon la revendication 3, caractérisé en ce que, dans le cas de deux élingues provisoires (24), les éléments (25, 26) de ces élingues sont stockés respectivement sur les deux côtés du porte-flèche (6) et de la flèche (9), et en ce qu'on procède successivement au montage de la première élingue provisoire (24) puis au montage de la seconde élingue provisoire (24) à l'aide du treuil auxiliaire (22) et de son câble (23).Method according to claim 3, characterized in that , in the case of two temporary slings (24), the elements (25, 26) of these slings are stored respectively on both sides of the boom carrier (6) and the boom (9), and in that one proceeds successively to the mounting of the first provisional sling (24) then to the mounting of the second temporary sling (24) using the auxiliary winch (22) and its cable (23). . Procédé selon l'une des revendications 1 à 4, caractérisé en ce que l'opération de montage de la ligne de tirants (19) consiste, après avoir fait passer le câble (23) du treuil auxiliaire (22) sur une poulie de renvoi (33) située vers l'avant de la flèche (9), à amarrer l'extrémité (34) du câble auxiliaire (23) sur la moufle de relevage (18), l'extrémité postérieure (35) de la ligne de tirants (19) étant aussi attachée à la moufle de relevage (18), à actionner le treuil auxiliaire (22) dans le sens de l'enroulement de son câble (23) et à actionner le treuil de relevage (13) dans le sens du déroulement de son câble (16), de manière à tirer la moufle de relevage (18) vers l'avant, et à accrocher finalement l'extrémité antérieure (35) de la ligne de tirants (19) à la partie avant de la flèche (9).Method according to one of claims 1 to 4, characterized in that the assembly operation of the tie rod line (19) consists, after passing the cable (23) of the auxiliary winch (22) on a return pulley (33) located forwardly of the boom (9), to tether the end (34) of the auxiliary cable (23) on the lifting block (18), the rear end (35) of the line of tie rods (19) also being attached to the lifting muffle (18), operating the auxiliary winch (22) in the winding direction of its cable (23) and operating the lifting winch (13) in the direction of the unwinding its cable (16), so as to pull the lifting block (18) forwards, and finally hooking the front end (35) of the line of tie rods (19) to the front part of the boom (9). Procédé selon l'une des revendications 1 à 5, caractérisé en ce que le treuil auxiliaire (22) est également utilisé, en combinaison avec une potence (29) portée par la plateforme des mécanismes (8) elle-même portée par la contre-flèche (7), pour l'entretien ou la maintenance des mécanismes portés par cette contre-flèche (7), le câble (23) du treuil auxiliaire (22) étant alors dirigé vers la potence (29) et guidé (36, 37, 38) le long de cette potence (29).Method according to one of claims 1 to 5, characterized in that the auxiliary winch (22) is also used, in combination with a bracket (29) carried by the platform mechanisms (8) itself carried by the counter- arrow (7), for the maintenance or the maintenance of the mechanisms carried by this counter-arrow (7), the cable (23) of the auxiliary winch (22) then being directed towards the bracket (29) and guided (36, 37 , 38) along this stem (29). Dispositif de montage d'une grue à flèche relevable, pour la mise en oeuvre du procédé selon l'une des revendications 1 à 6, caractérisé en ce qu'il comprend un treuil auxiliaire (22) porté par la partie tournante (4) de la grue, ce treuil auxiliaire (22) étant équipé d'un câble auxiliaire (23) de diamètre sensiblement plus petit que celui des câbles de levage (20) et de relevage (16).Device for mounting a luffing jib crane, for carrying out the method according to one of claims 1 to 6, characterized in that it comprises an auxiliary winch (22) carried by the rotating part (4) of the crane, this auxiliary winch (22) being equipped with an auxiliary cable (23) of diameter substantially smaller than that of the lifting (20) and lifting (16) cables. Dispositif selon la revendication 7, caractérisé en ce que le treuil auxiliaire (22) est monté à la base du porte-flèche (6) de la grue.Device according to claim 7, characterized in that the auxiliary winch (22) is mounted at the base of the boom carrier (6) of the crane. Dispositif selon la revendication 7 ou 8, caractérisé en ce qu'il comprend, sur la partie tournante (4) de la grue, des moyens de guidage du câble auxiliaire (23), en particulier des poulies (32, 33), adaptés aux opérations réalisées à l'aide du treuil auxiliaire (23).Device according to claim 7 or 8, characterized in that it comprises, on the rotating part (4) of the crane, means for guiding the auxiliary cable (23), in particular pulleys (32, 33) adapted to the operations performed using the auxiliary winch (23). Grue à flèche relevable, caractérisée en ce qu'elle est équipée d'un dispositif de montage avec treuil auxiliaire (22) selon l'une des revendications 7 à 9.Luffing jib crane, characterized in that it is equipped with a mounting device with auxiliary winch (22) according to one of claims 7 to 9.
EP06356102A 2005-10-26 2006-08-30 Method and device for the assembly of a crane with a lifting jib Expired - Fee Related EP1780165B1 (en)

Applications Claiming Priority (1)

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FR0510954A FR2892405B1 (en) 2005-10-26 2005-10-26 METHOD AND DEVICE FOR MOUNTING A CRANE WITH AN ADJUSTABLE ARROW

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EP1780165A1 true EP1780165A1 (en) 2007-05-02
EP1780165B1 EP1780165B1 (en) 2010-04-07

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KR (1) KR101330716B1 (en)
CN (1) CN1955102B (en)
AU (1) AU2006233182B2 (en)
DE (1) DE602006013385D1 (en)
ES (1) ES2342969T3 (en)
FR (1) FR2892405B1 (en)
MY (1) MY141399A (en)

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ES2371710A1 (en) * 2010-03-29 2012-01-09 Linden Comansa, S.L. Improvements in folding boom cranes. (Machine-translation by Google Translate, not legally binding)
WO2014048516A1 (en) * 2012-09-28 2014-04-03 Liebherr-Werk Biberach Gmbh Rotating tower crane

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DE102009020338B4 (en) * 2009-05-07 2011-07-21 Manitowoc Crane Group France Sas Telescopic crane with self-assembling guying fixture and mounting method for a guying fixture
CN101792091B (en) * 2010-03-12 2012-07-11 广州文冲船厂有限责任公司 Moment hoisting method for three connecting rods of gantry crane
DE102010020016B4 (en) * 2010-05-10 2021-04-29 Liebherr-Werk Ehingen Gmbh Crane and method of erecting the crane
CN102992213A (en) * 2012-12-20 2013-03-27 中联重科股份有限公司 Steel wire rope winding device and tower crane
CN103663189B (en) * 2014-01-02 2015-06-17 中联重科股份有限公司 Swing arm tower crane installation method
CN104340907A (en) * 2014-10-31 2015-02-11 徐州重型机械有限公司 Hoisting and winching control device capable of preventing rope from messing and control method
FR3071489A1 (en) 2017-09-28 2019-03-29 Manitowoc Crane Group France METHOD FOR SECURING A CRANE ARROW CRANE AND ASSOCIATED CRANE
BE1026086B1 (en) * 2018-07-27 2019-10-04 DEME Offshore Holding N.V. Lifting block for a crane

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Cited By (5)

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EP1982947A2 (en) 2007-04-20 2008-10-22 Wilbert Turmkrane GmbH Luffing crane with transport holder for roller blocks
DE102007019747A1 (en) * 2007-04-20 2008-10-30 Wilbert Turmkrane Gmbh Luffing crane with transport bracket for roller blocks
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ES2371710A1 (en) * 2010-03-29 2012-01-09 Linden Comansa, S.L. Improvements in folding boom cranes. (Machine-translation by Google Translate, not legally binding)
WO2014048516A1 (en) * 2012-09-28 2014-04-03 Liebherr-Werk Biberach Gmbh Rotating tower crane

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FR2892405A1 (en) 2007-04-27
DE602006013385D1 (en) 2010-05-20
AU2006233182B2 (en) 2011-08-04
ES2342969T3 (en) 2010-07-20
KR20070045098A (en) 2007-05-02
KR101330716B1 (en) 2013-11-26
AU2006233182A1 (en) 2007-05-10
FR2892405B1 (en) 2007-12-07
CN1955102B (en) 2010-07-21
MY141399A (en) 2010-04-30
CN1955102A (en) 2007-05-02
EP1780165B1 (en) 2010-04-07

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