EP3141517B1 - Crane with quick assembly which is not self-ballasted - Google Patents
Crane with quick assembly which is not self-ballasted Download PDFInfo
- Publication number
- EP3141517B1 EP3141517B1 EP16186547.2A EP16186547A EP3141517B1 EP 3141517 B1 EP3141517 B1 EP 3141517B1 EP 16186547 A EP16186547 A EP 16186547A EP 3141517 B1 EP3141517 B1 EP 3141517B1
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- EP
- European Patent Office
- Prior art keywords
- ballast
- crane
- mast
- region
- base
- 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.)
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- 241000826860 Trapezium Species 0.000 claims description 6
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 244000261422 Lysimachia clethroides Species 0.000 description 2
- 238000000151 deposition Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- 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
- B66C23/344—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes adapted for transport purposes
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- 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
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
Definitions
- the present invention relates to the field of towed cranes and carries, in particular, a non-ballasted crane capable of being mounted on a trailer, comprising means for bringing a ballast on the crane chassis without the need for an attachment machine for gripping, the displacement and the pose of the ballast.
- ballast mounted on trailer whose ballast is independent of them.
- An example of independent ballast is a ballast mounted on another trailer. Then simply put the ballast on the crane.
- ballast For the installation of the ballast on the crane, one uses a machine or an independent vehicle, such as a forklift.
- the present invention aims to solve the problems encountered with the conventional non-weighted cranes described above by providing a foldable crane quick mounting and unweighted, adapted to be installed on a trailer and comprising a set of ballast displacement installed on a post of the crane and to lift and move the ballast while the crane is in the folded state, without using an auxiliary lifting vehicle.
- the ballast support region and the load lifting means are preferably each generally symmetrical with respect to the same vertical imaginary plane to which said vertical axis of rotation belongs.
- the ball displacement means comprise a carriage displaceable in translation along the upper part of the mast by an actuating device.
- the upper part of the mast comprises a path integral therewith, the path being rectilinear and oriented in the longitudinal direction of the upper part of the mast, the upper part of the mast having, in said transport position, two planar sides vertical, the carriage having means cooperating with the path for translational movement of the carriage relative to the path.
- the path may be formed by two ribs secured to said two sides, vertical in the transport position, of said upper part of the mast, the carriage comprising wheels rotatably mounted thereon and adapted to roll on the upper face of the ribs.
- the actuating device may comprise a jack, one of which is connected to said upper part of the mast and one of the head and the body, and the other of the head and the body is connected to the carriage.
- the path may be formed by two racks whose teeth are oriented upwards, integral racks on two opposite sides, vertical in the transport position, of said upper part of the mast, the carriage comprising gears mounted to rotate on it and able to mesh the racks.
- the actuating device may in this case be formed by a motor carried by the carriage itself and means for transmitting the movement of the motor shaft to said gears.
- the actuating device may comprise a cable and pulley assembly, a pulley being integral with said upper part of the mast and another pulley being integral with the carriage, the cable being arranged in such a way that traction is exerted on the mast. one or the other end of the latter makes it possible to move the carriage in one direction or the other along the upper part of the mast.
- the carriage may comprise two parallel plates generally trapezoidal and interconnected in the region of the small base of the trapezium, which protrudes on one side of the mast, by at least one bar extending thus beside the mast, the means cooperating with the path being disposed in the region of the large base of the trapezium of each plate, said means of a plate facing the other plate.
- Said gripping means may comprise slings configured to connect the ballast and the moving means when a ballast is carried by the moving means.
- said input means may comprise a winch configured to connect the ballast and the moving means when a ballast is carried by the moving means.
- the ballast support region may be formed by two arms extending from the central region of the base, at which the base is connected to the frame.
- the crane described above can be mounted on an existing chassis.
- the frame of the crane according to the present invention may comprise at least one running gear.
- the crane 1 comprises a chassis 2 comprising a two-axle running gear 3.
- the chassis 2 also comprises feet 2a able to be deployed to be supported on shims (not shown) placed on the ground, so as to stabilize the crane 1 during use.
- the crane 1 further comprises a mast 4 in two parts 4a and 4b, respectively said lower and upper, connected by a pivot connection 5 of horizontal axis.
- the mast 4 is connected, by its lower part 4a, to a base 6 by a pivot connection 7 of horizontal axis, the base 6 being rotatably mounted on the frame 2 about a vertical axis of rotation, the base 6 having a ballast support region 6a configured to receive a ballast 8, in particular because it has at least one planar surface for laying the ballast 8.
- the crane 1 also comprises an arrow 9 connected to the upper part 4b of the mast 4 by a pivot link 10 of horizontal axis.
- the boom 9 is an arrow in a first and a second part 9a and 9b connected by a pivot connection 11 of horizontal axis, the first part 9a of the boom 9 being connected to the mast 4.
- the boom 9 is also provided at its free end with load lifting means 12.
- the crane 1 also comprises deployment / folding means 13, configured to selectively place the crane 1 in the standing position of the crane. Figure 1 or in a transport position of the Figure 2 .
- the deployment / folding means 13 consist of a jack 13, here hydraulic, for deploying the crane, to dispose as shown on the Figure 1 , or to fold it in a transport position, as shown on the Figure 2 , selectively.
- the crane 1 being a trailer, it comprises a gooseneck 15 for connecting it to a vehicle, the gooseneck 15 being fixed on the lower part 4a of the mast 4.
- the crane 1 further comprises a system of cables and tie rods 25.
- the crane 1 according to the particular embodiment shown in the figures is distinguished, inter alia, by the fact that it comprises means for lifting and moving the ballast while the crane is in the folded state, without using a vehicle lifting lift. These means will be described below.
- an end region 4c of the upper portion 4a of the mast 4 extends above said ballast support region 6a and extends to be cantilevered with respect to that -this.
- the length of the upper part 4b of the mast 4 is greater than the sum of the length of the lower portion 4a of the mast 4 and the length of the ballast support region 6a.
- Crane 1 comprises, at said end region 4c, ballast loading means 14.
- the ballast loading means 14 comprise a carriage 15 formed of two plates 16 parallel overall. trapezoidal and interconnected, in the region of the small base of the trapezium, by at least one bar 17.
- Two wheels 18 are mounted in the upper part of each plate 16, a wheel 18 in the region of each end of the large base of the trapezium formed by the plate 16.
- the wheels 18 coupled to a respective plate 16 are arranged on the side of said plate 16 which is turned towards the other plate 16.
- a safety roller (not visible in the figures), whose function will be explained below, is also provided just below each pair of wheels 18.
- the upper part of the mast 4b is a hollow bar of square section, and comprises, in its end region of connection with the arrow 9, two ribs 19 formed on two opposite sides of the upper part 4b, the opposite sides being vertical when the crane 1 is in the transport position.
- the carriage 15 is dimensioned so that each pair of wheels 18 rests and is able to roll on the respective rib 19, the carriage 15 thus surrounding a lateral part of the upper part 4b of the mast 4.
- each safety roller is in contact with or in the immediate vicinity of the rib 19, on the side opposite to that on which the wheels 18 rest. This makes it possible to avoid not only that the carriage 15 does not tilt when the crane 1 is in standing position, but still that it is blocked due to a sway of the ballast while it is moved along the mast 4 for the installation of said ballast, as will be described below.
- the carriage 15 is movable along the upper part 4b of the mast 4 by a jack 20, a first end of which is connected to the upper part 4b of the mast 4. a pivot link 20a and whose other end is connected to the or at least one of the bars 17 of the carriage 15, the jack 20 being arranged under the lower face of the upper part 4b, when the crane 1 is in the position of transport.
- the carriage 15 comprises, on the face of each plate 16 opposite to that carrying the wheels 18, a fin 21 pierced with a hole 22, for suspending the end of a sling 23 at each fin 21.
- each sling 23 comprises a hook for grasping the ballast 8, in order to suspend the ballast from the carriage 15.
- the length and the position of the ribs 19 is provided in such a way that the carriage 15 can be moved by the jack 20 between two extreme positions, namely a first so-called laying position in which it is situated above the ballast support region 6a, and a second so-called gripping position in which it is cantilevered with respect to said ballast support region 6a.
- the sequence of deployment of the crane 1 using the means deployment / folding 13 is started, then stopped when the end region 4c of the upper part 4b has risen in such a way that the ballast plate 8 is situated higher than the ballast support region 6a or a ballast plate 8 the most superior previously deposited on said ballast support region 6a.
- the jack 20 is actuated to move the carriage 15 carrying the ballast plate 8 from the gripping position to the laying position.
- the folding sequence of the crane 1 using the unfolding / folding means 13 is started and then stopped when the ballast plate 8 is placed on the ballast support region 6a or on a ballast plate 8 the most upper previously deposited on said ballast support region 6a.
- the slings 23 of the ballast plate 8, which has just been laid, are then manually unhooked.
- the jack 20 is then actuated so as to move the carriage 15 from the laying position to the gripping position, so that a new seizure, displacement and laying of a ballast plate 8 can be performed if necessary. , until a necessary total weight of ballast 8 is reached.
- ballast 8 is carried by two parallel arms 6b extending at the same height from the central region of the base 6, the upper faces of the two arms 6b defining the ballast support region 6b.
- the arms 6b are symmetrical with respect to the vertical plane to which belongs the vertical axis of rotation of the base 6 relative to the frame 2, vertical plane relative to which the load lifting means 12 are also globally symmetrical. This configuration ensures that the ballast 8 correctly performs its counterweight function for the load lifted by the load lifting means 12, without unbalancing.
- the path along which the carriage moves is formed by a T-rail extending along the lower face in the transport position of the upper part 4b of the mast 4, the T-rail being connected to the mast 4 by the foot of the T, the T bar thus forming, with said face of the upper part 4b of the mast 4, two slides, one on each side of the foot of the T, in which means carried by the carriage can slide or roll.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
Description
La présente invention concerne le domaine des grues remorquées et porte, en particulier, sur une grue non lestée apte à être montée sur une remorque, comprenant des moyens pour amener un lest sur le châssis de la grue sans nécessiter de machine annexe pour la saisie, le déplacement et la pose du lest.The present invention relates to the field of towed cranes and carries, in particular, a non-ballasted crane capable of being mounted on a trailer, comprising means for bringing a ballast on the crane chassis without the need for an attachment machine for gripping, the displacement and the pose of the ballast.
Sur les petits chantiers sur lesquels travaillent des artisans, il est souvent nécessaire d'utiliser une grue pour soulever des charges.On small sites where craftsmen work, it is often necessary to use a crane to lift loads.
La plupart des grues sont des machines de grande taille et sont lourdes, transportables uniquement avec un camion tracteur de semi-remorque, qu'un artisan ne possède généralement pas, et qui nécessite également de posséder un permis de conduire spécifique. En outre, de telles grues sont généralement surdimensionnées pour les petits chantiers.Most cranes are large machines and are heavy, transportable only with a tractor-trailer truck, which an artisan usually does not own, and which also requires a specific driver's license. In addition, such cranes are generally oversized for small yards.
Ainsi, il existe de petites grues pliables autolestées dont le poids sur remorque ne dépasse pas 3,5 tonnes, de telle sorte qu'elles peuvent être transportées avec un véhicule classique.For example, there are self-contained small folding cranes with a trailer weight of no more than 3.5 tonnes so that they can be transported with a conventional vehicle.
L'inconvénient de ces grues réside dans le fait que le lest est limité à un certain poids, ce par quoi ces grues ne permettent de soulever que des charges réduites.The disadvantage of these cranes lies in the fact that the ballast is limited to a certain weight, whereby these cranes can lift only reduced loads.
En effet, après un certain seuil de charge, le contrepoids ne suffit plus à contrebalancer la charge, et il existe un risque pour que la grue bascule et chute.Indeed, after a certain load threshold, the counterweight is no longer sufficient to counterbalance the load, and there is a risk that the crane tilts and falls.
Ces grues autolestées ne sont donc pas toujours suffisantes pour un artisan qui peut être amené à soulever de lourdes charges.These self-powered cranes are therefore not always sufficient for a craftsman who may have to lift heavy loads.
Ainsi, il existe des grues non autolestées montées sur remorque dont le lest est indépendant de celles-ci. Un exemple de lest indépendant est un lest monté sur une autre remorque. Il suffit ensuite de poser le lest sur la grue.Thus, there are non self-mounted cranes mounted on trailer whose ballast is independent of them. An example of independent ballast is a ballast mounted on another trailer. Then simply put the ballast on the crane.
Pour la pose du lest sur la grue, on utilise une machine ou un véhicule indépendant, tel qu'un chariot élévateur.For the installation of the ballast on the crane, one uses a machine or an independent vehicle, such as a forklift.
Une telle solution nécessite l'utilisation d'une machine ou d'un véhicule indépendant qu'il est nécessaire d'amener sur le chantier, ce qui est couteux et chronophage. En outre, l'artisan travaillant sur le chantier ne dispose pas toujours d'une telle machine ou d'un tel véhicule.Such a solution requires the use of a machine or an independent vehicle that it is necessary to bring to the site, which is expensive and time consuming. In addition, the craftsman working on the site does not always have such a machine or such a vehicle.
La présente invention vise à résoudre les problèmes rencontrés avec les grues non lestées classiques décrites ci-dessus en proposant une grue pliable à montage rapide et non lestée, apte à être installée sur une remorque et comprenant un ensemble de déplacement de lest installé sur un montant de la grue et permettant de lever et déplacer le lest alors que la grue est à l'état replié, sans utiliser de véhicule de levage annexe.The present invention aims to solve the problems encountered with the conventional non-weighted cranes described above by providing a foldable crane quick mounting and unweighted, adapted to be installed on a trailer and comprising a set of ballast displacement installed on a post of the crane and to lift and move the ballast while the crane is in the folded state, without using an auxiliary lifting vehicle.
La présente invention a donc pour objet une grue à montage rapide non autolestée, comprenant :
- un châssis,
- un mât en deux parties, dites inférieure et supérieure, reliées l'une à l'autre de façon pivotante autour d'un premier axe horizontal,
- une flèche reliée à la partie supérieure du mât de façon pivotante autour d'un deuxième axe horizontal, la flèche étant munie, à son extrémité libre, de moyens de levage de charge,
- une base montée rotative sur le châssis autour d'un axe de rotation vertical, la base présentant une région de support de lest configurée pour recevoir un lest, la partie inférieure du mât étant reliée à la base de façon pivotante autour d'un troisième axe horizontal,
- des moyens de déploiement/repliement, configurés pour placer de manière sélective la grue dans une position de transport, dans laquelle les parties supérieure et inférieure du mât et la flèche ont été repliées, ou dans une position debout, dans laquelle le mât et la flèche ont été déployés pour être respectivement vertical et horizontale,
grue dans laquelle, en position de transport, une région d'extrémité de la partie supérieure du mât s'étend au-dessus de ladite région de support de lest et se prolonge pour être en porte-à -faux par rapport à ladite région de support de lest,
la grue étant caractérisée par le fait que sont prévus, à ladite région d'extrémité, des moyens de chargement de lest comprenant des moyens de saisie de lest, aptes à saisir et déposer un lest, et des moyens de déplacement de lest configurés pour déplacer lesdits moyens de saisie de lest entre une première position, dite de saisie, dans laquelle les moyens de saisie de lest sont situés en porte-à -faux par rapport à ladite région de support de lest de façon à pouvoir saisir un lest, et une seconde position, dite de pose, dans laquelle les moyens de saisie de lest sont situés au-dessus de ladite région de support de lest de façon à pouvoir déposer ledit lest sur ladite région de support de lest.The present invention therefore relates to a self-erecting quick-erecting crane, comprising:
- a chassis,
- a mast in two parts, said lower and upper, pivotally connected to one another about a first horizontal axis,
- an arrow connected to the upper part of the mast pivotally about a second horizontal axis, the boom being provided at its free end with load lifting means,
- a rotatably mounted base on the frame about an axis of vertical rotation, the base having a ballast support region configured to receive a ballast, the lower portion of the mast being pivotally connected to the base about a third axis horizontal,
- deployment / folding means, configured to selectively place the crane in a transport position, in which the upper and lower parts of the mast and the boom have been folded, or in a standing position, in which the mast and the boom have been deployed to be vertical and horizontal respectively,
crane in which, in the transport position, an end region of the upper portion of the mast extends above said ballast support region and extends to be cantilevered with respect to said ballast support,
the crane being characterized in that, at said end region, there are provided ballast loading means comprising ballast grasping means, capable of grasping and depositing a ballast, and ballast moving means configured to move. said ballast grasping means between a first, so-called gripping position, in which the ballast grasping means are cantilevered with respect to said ballast support region so as to be able to grip ballast, and second position, said laying, wherein the ballast grasping means are located above said ballast support region of in such a way as to be able to deposit said ballast on said ballast support region.
La région de support de lest et les moyens de levage de charge sont, de préférence, chacun globalement symétriques par rapport à un même plan imaginaire vertical auquel appartient ledit axe de rotation vertical.The ballast support region and the load lifting means are preferably each generally symmetrical with respect to the same vertical imaginary plane to which said vertical axis of rotation belongs.
Selon un mode de réalisation particulier de la présente invention, les moyens de déplacement de lest comprennent un chariot déplaçable en translation le long de la partie supérieure du mât par un dispositif d'actionnement.According to a particular embodiment of the present invention, the ball displacement means comprise a carriage displaceable in translation along the upper part of the mast by an actuating device.
De préférence, la partie supérieure du mât comprend un chemin solidaire de celle-ci, le chemin étant rectiligne et orienté dans la direction longitudinale de la partie supérieure du mât, la partie supérieure du mât présentant, dans ladite position de transport, deux côtés plans verticaux, le chariot ayant des moyens coopérant avec le chemin pour le déplacement en translation du chariot par rapport au chemin.Preferably, the upper part of the mast comprises a path integral therewith, the path being rectilinear and oriented in the longitudinal direction of the upper part of the mast, the upper part of the mast having, in said transport position, two planar sides vertical, the carriage having means cooperating with the path for translational movement of the carriage relative to the path.
Le chemin peut être formé par deux nervures solidaires desdits deux côtés, verticaux en position de transport, de ladite partie supérieure du mât, le chariot comprenant des roues montées à rotation sur celui-ci et aptes à rouler sur la face supérieure des nervures.The path may be formed by two ribs secured to said two sides, vertical in the transport position, of said upper part of the mast, the carriage comprising wheels rotatably mounted thereon and adapted to roll on the upper face of the ribs.
Le dispositif d'actionnement peut comprendre un vérin dont l'un de la tête et du corps est relié à ladite partie supérieure du mât et l'autre de la tête et du corps est relié au chariot.The actuating device may comprise a jack, one of which is connected to said upper part of the mast and one of the head and the body, and the other of the head and the body is connected to the carriage.
En variante, le chemin peut être formé par deux crémaillères dont les dents sont orientées vers le haut, crémaillères solidaires de deux côtés opposés, verticaux en position de transport, de ladite partie supérieure du mât, le chariot comprenant des pignons montées à rotation sur celui-ci et aptes à engrener les crémaillères. Le dispositif d'actionnement pourra dans ce cas être formé par un moteur porté par le chariot lui-même et des moyens de transmission du mouvement de l'arbre du moteur auxdits pignons.Alternatively, the path may be formed by two racks whose teeth are oriented upwards, integral racks on two opposite sides, vertical in the transport position, of said upper part of the mast, the carriage comprising gears mounted to rotate on it and able to mesh the racks. The actuating device may in this case be formed by a motor carried by the carriage itself and means for transmitting the movement of the motor shaft to said gears.
En variante, le dispositif d'actionnement peut comprendre un ensemble à câble et poulies, une poulie étant solidaire de ladite partie supérieure du mât et une autre poulie étant solidaire du chariot, le câble étant agencé de telle sorte qu'une traction exercée sur l'une ou l'autre des extrémités de celui-ci permet de déplacer le chariot dans un sens ou dans l'autre le long de la partie supérieure du mât.As a variant, the actuating device may comprise a cable and pulley assembly, a pulley being integral with said upper part of the mast and another pulley being integral with the carriage, the cable being arranged in such a way that traction is exerted on the mast. one or the other end of the latter makes it possible to move the carriage in one direction or the other along the upper part of the mast.
Le chariot peut comprendre deux plaques parallèles globalement trapézoïdales et reliées entre elles, dans la région de la petite base du trapèze, qui dépasse sur un côté du mât, par au moins une barre s'étendant ainsi à côté du mât, les moyens coopérant avec le chemin étant disposés dans la région de la grande base du trapèze de chaque plaque, lesdits moyens d'une plaque faisant face à l'autre plaque.The carriage may comprise two parallel plates generally trapezoidal and interconnected in the region of the small base of the trapezium, which protrudes on one side of the mast, by at least one bar extending thus beside the mast, the means cooperating with the path being disposed in the region of the large base of the trapezium of each plate, said means of a plate facing the other plate.
Lesdits moyens de saisie peuvent comprendre des élingues configurées pour relier le lest et les moyens de déplacement lorsqu'un lest est porté par les moyens de déplacement.Said gripping means may comprise slings configured to connect the ballast and the moving means when a ballast is carried by the moving means.
En variante, lesdits moyens de saisie peuvent comprendre un treuil configuré pour relier le lest et les moyens de déplacement lorsqu'un lest est porté par les moyens de déplacement.Alternatively, said input means may comprise a winch configured to connect the ballast and the moving means when a ballast is carried by the moving means.
La région de support de lest peut être formée par deux bras s'étendant à partir de la région centrale de la base, au niveau de laquelle la base est reliée au châssis.The ballast support region may be formed by two arms extending from the central region of the base, at which the base is connected to the frame.
La grue décrite ci-dessus peut être montée sur un châssis roulant existant. En variante, d'emblée le châssis de la grue selon la présente invention peut comprendre au moins un train roulant.The crane described above can be mounted on an existing chassis. Alternatively, from the outset the frame of the crane according to the present invention may comprise at least one running gear.
Pour mieux illustrer l'objet de la présente invention, on va en décrire ci-après, à titre indicatif et non limitatif, un mode de réalisation particulier avec référence au dessin annexé.To better illustrate the object of the present invention, will be described below, for information only and not limited to, a particular embodiment with reference to the accompanying drawing.
Sur ce dessin :
- la
Figure 1 est une vue de profil de la grue selon la présente invention, en position debout ; - la
Figure 2 est une vue de profil de la grue selon la présente invention, en position de transport ; - la
Figure 3 est une vue détaillée et en perspective des moyens de chargement de lest de la grue selon la présente invention ; - la
Figure 4 est une vue en coupe, selon le plan P de laFigure 3 , des moyens de chargement de lest selon la présente invention ; - les
Figures 5 à 8 sont des vues de profil de la grue selon la présente invention, représentant les différentes étapes du chargement d'un lest, d'un support annexe vers le châssis de la grue ; et - la
Figure 9 est une vue de dessus de la grue représentée sur laFigure 8 , à savoir à l'état replié et après pose du lest.
- the
Figure 1 is a side view of the crane according to the present invention, in a standing position; - the
Figure 2 is a profile view of the crane according to the present invention, in the transport position; - the
Figure 3 is a detailed perspective view of the ballast loading means of the crane according to the present invention; - the
Figure 4 is a sectional view, according to the plane P of theFigure 3 ballast loading means according to the present invention; - the
Figures 5 to 8 are side views of the crane according to the present invention, showing the different steps of loading a ballast, an auxiliary support to the frame of the crane; and - the
Figure 9 is a top view of the crane shown on theFigure 8 , namely in the folded state and after installation of the ballast.
Si l'on se réfère aux
La grue 1 comprend en outre un mât 4 en deux parties 4a et 4b, respectivement dites inférieure et supérieure, reliées par une liaison pivot 5 d'axe horizontal.The
Le mât 4 est relié, par sa partie inférieure 4a, à une base 6 par une liaison pivot 7 d'axe horizontal, la base 6 étant montée rotative sur le châssis 2 autour d'un axe de rotation vertical, la base 6 présentant une région de support de lest 6a configurée pour recevoir un lest 8, en particulier du fait qu'elle présente au moins une surface plane permettant la pose du lest 8.The
La grue 1 comprend également une flèche 9 reliée à la partie supérieure 4b du mât 4 par une liaison pivot 10 d'axe horizontal. De la même manière que le mât 4, la flèche 9 est une flèche en une première et une seconde parties 9a et 9b reliées par une liaison pivot 11 d'axe horizontal, la première partie 9a de la flèche 9 étant reliée au mât 4. La flèche 9 est également munie, à son extrémité libre, de moyens de levage de charge 12. La grue 1 comprend également des moyens de déploiement/repliement 13, configurés pour placer de manière sélective la grue 1 dans la position debout de la
La grue 1 étant une remorque, elle comprend un col de cygne 15 permettant de relier celle-ci à un véhicule, le col de cygne 15 étant fixé sur la partie inférieure 4a du mât 4.The
La grue 1 comprend en outre un système de câbles et tirants 25.The
Les caractéristiques ci-dessus de la grue 1 sont classiques et bien connues de l'homme du métier. On ne décrira pas donc pas ici plus en détail les opérations de déploiement/repliement de la grue 1, ni la structure précise du mât 4 et de la flèche 9, etc.The above characteristics of the
La grue 1 selon le mode de réalisation particulier représenté sur les Figures se distingue, entre autres, par le fait qu'elle comprend des moyens permettant de lever et déplacer le lest alors que la grue est à l'état replié, sans utiliser de véhicule de levage annexe. Ces moyens vont être décrits ci-après.The
On peut voir sur la
La grue 1 comprend, à ladite région d'extrémité 4c, des moyens de chargement de lest 14.
Si l'on se réfère aux
Deux roues 18 sont montées en partie supérieure de chaque plaque 16, une roue 18 dans la région de chaque extrémité de la grande base du trapèze formé par la plaque 16. Les roues 18 couplées à une plaque 16 respective sont disposées sur le côté de ladite plaque 16 qui est tourné vers l'autre plaque 16.Two
Un galet de sécurité (non visible sur les Figures), dont la fonction sera explicitée ci-après, est également prévu juste au-dessous de chaque paire de roues 18.A safety roller (not visible in the figures), whose function will be explained below, is also provided just below each pair of
La partie supérieure du mât 4b est une barre creuse de section carrée, et comprend, dans sa région d'extrémité de liaison avec la flèche 9, deux nervures 19 formées sur deux côtés opposés de la partie supérieure 4b, les côtés opposés étant verticaux lorsque la grue 1 est en position de transport.The upper part of the
Le chariot 15 est dimensionné de telle sorte que chaque paire de roues 18 repose et est apte à rouler sur la nervure 19 respective, le chariot 15 entourant ainsi une partie latérale de la partie supérieure 4b du mât 4.The
Par ailleurs, chaque galet de sécurité est en contact ou au voisinage immédiat de la nervure 19, sur le côté opposé à celui sur lequel repose les roues 18. Cela permet d'éviter non seulement que le chariot 15 ne bascule lorsque la grue 1 est en position debout, mais encore qu'il ne se bloque en raison d'un balancement du lest alors qu'il est déplacé le long du mât 4 pour la pose dudit lest, comme cela sera décrit ci-dessous.Furthermore, each safety roller is in contact with or in the immediate vicinity of the
Le chariot 15 est déplaçable le long de la partie supérieure 4b du mât 4 par un vérin 20, dont une première extrémité est reliée à la partie supérieure 4b du mât 4 par une liaison pivot 20a et dont l'autre extrémité est reliée à la ou au moins l'une des barres 17 du chariot 15, le vérin 20 étant disposé sous la face inférieure de la partie supérieure 4b, lorsque la grue 1 est en position de transport.The
Le chariot 15 comprend, sur la face de chaque plaque 16 opposée à celle portant les roues 18, une ailette 21 percée d'un trou 22, pour suspendre l'extrémité d'une élingue 23 à chaque ailette 21.The
L'autre extrémité de chaque élingue 23 comprend un crochet destiné à saisir le lest 8, afin de suspendre ce dernier à partir du chariot 15.The other end of each
Comme on peut le voir que la
Si l'on se réfère aux
Comme on peut le voir sur la
Ensuite, comme on peut le voir sur la
Ensuite, comme on peut le voir sur la
Puis, comme on peut le voir sur la
Le vérin 20 est ensuite actionné de manière à déplacer le chariot 15 de la position de pose à la position de saisie, de telle sorte qu'une nouvelle séquence de saisie, déplacement et pose d'une plaque de lest 8 peut être réalisée si nécessaire, jusqu'à ce qu'un poids total nécessaire du lest 8 soit atteint.The
Si l'on se réfère à la
Les bras 6b sont symétriques par rapport au plan vertical auquel appartient l'axe de rotation vertical de la base 6 par rapport au châssis 2, plan vertical par rapport auquel les moyens de levage de charge 12 sont également globalement symétriques. Cette configuration permet d'assurer que le lest 8 assure correctement sa fonction de contrepoids pour la charge levée par les moyens de levage de charge 12, sans déséquilibrage.The
Il est bien entendu que le mode de réalisation ci-dessus de la présente invention a été donné à titre indicatif et non limitatif et que des modifications pourront y être apportées sans que l'on s'écarte pour autant du cadre de la présente invention.It is understood that the above embodiment of the present invention has been given as an indication and not limitation and that modifications may be made without departing from the scope of the present invention.
Ainsi, par exemple, on pourrait prévoir que le chemin le long duquel se déplace le chariot, lequel chemin est dans le mode de réalisation ci-dessus formé par les deux nervures 19, soit formé par un rail en T s'étendant le long de la face, inférieure en position de transport, de la partie supérieure 4b du mât 4, le rail en T étant relié au mât 4 par le pied du T, la barre du T formant ainsi, avec ladite face de la partie supérieure 4b du mât 4, deux glissières, une de chaque côté du pied du T, dans lesquelles des moyens portés par le chariot peuvent coulisser ou rouler.Thus, for example, one could provide that the path along which the carriage moves, which path is in the above embodiment formed by the two
Claims (10)
- A non-self-ballasted quick-assembly crane (1), comprising:- a frame (2),- a two-part mast (4), with so-called lower part (4a) and upper part (4b), connected to each other so as to be pivotable around a first horizontal axis,- a boom (9) connected to the upper part (4b) of the mast (4) so as to be pivotable around a second horizontal axis, the boom (9) being provided, at its free end, with load hoisting means (12),- a base (6) mounted on the frame (2) so as to be rotatable around a vertical rotation axis, the base (6) having a ballast support region (6a) configured to receive a ballast (8), the lower part (4a) of the mast (4) being connected to the base (6) so as to be pivotable around a third horizontal axis,- deploying/folding means (13) configured to selectively arrange the crane (1) in a transport position, in which the upper (4b) and lower (4a) parts of the mast (4) and the boom (9) have been folded, or a raised position in which the mast (4) and the boom (9) have been deployed to be vertical and horizontal, respectively,wherein said first, second and third horizontal pivot axes are parallel,
wherein in the crane (1), in the transport position, an end region (4c) of the upper part (4b) of the mast (4) extends above said ballast support region (6a) and continues so as to be cantilevered with respect to said ballast support region (6a),
the crane (1) being characterised in that, on said end region (4c), are provided ballast loading means (15, 20, 23) comprising ballast gripping means (23), able to grip and drop off a ballast (8), and ballast moving means (15, 20) configured to move said ballast gripping means (23) between a first, so-called gripping, position, in which the ballast gripping means (23) are cantilevered with respect to said ballast support region (6a) so as to be able to grip a ballast (8), and a second, so-called dropping off, position, in which the ballast gripping means (23) are located above said ballast support region (6a) so as to be able to drop off said ballast (8) on said ballast support region (6a). - The crane (1) according to claim 1, characterised in that the ballast moving means (15, 20) comprise a trolley (15) movable in translation along the upper part (4b) of the mast (4) by an actuating device (20) .
- The crane (1) according to claim 2, characterised in that the upper part (4b) of the mast (4) comprises a path (19) integral therewith, the path (19) being rectilinear and oriented in the longitudinal direction of the upper part (4b) of the mast (4), the upper part (4b) of the mast (4) having, in said transport position, two vertical planar sides, the trolley (15) having means (18) cooperating with the path (19) for moving the trolley (15) in translation with respect to the path (19) .
- The crane (1) according to claim 3, characterised in that the path (19) is formed by two ribs (19) integral with said two sides, vertical in the transport position, of said upper part (4b) of the mast (4), the trolley (15) comprising wheels (18) rotatably mounted thereon and able to roll on the upper face of the ribs (19).
- The crane (1) according to one of claims 2 to 4, characterised in that the actuating device (20) comprises a cylinder (20), with one of the head and the body of which is connected to said upper part (4b) of the mast (4), and the other of the head and the body is connected to the trolley (15).
- The crane (1) according to claim 3 or one of claims 4 and 5 when dependent on claim 3, characterised in that the trolley (15) comprises two parallel plates (16), generally trapezoidal and connected to each other, in the region of the small base of the trapezium, which protrudes on a side of the mast (4), by at least one bar (17) thus extending next to the mast (4), the means (18) cooperating with the path (19) being arranged in the region of the large base of the trapezium of each plate (16), said means (18) of one plate (16) facing the other plate (16).
- The crane (1) according to one of claims 1 to 6, characterised in that said gripping means (23) comprise slings (23) configured to connect the ballast (8) and the moving means (15, 20) when a ballast (8) is carried by the moving means (15, 20).
- The crane (1) according to one of claims 1 to 6, characterised in that said gripping means comprise a hoist configured to connecter the ballast (8) and the moving means (15, 20) when a ballast (8) is carried by the moving means (15, 20).
- The crane (1) according to one of claims 1 to 8, characterised in that the ballast support region (6a) is formed by two arms (6b) extending from the middle region of the base (6), at which the base (6) is connected to the frame (2).
- The crane (1) according to one of claims 1 to 9, characterised in that the frame (2) comprises at least one running gear (3).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1558449A FR3040990B1 (en) | 2015-09-10 | 2015-09-10 | FAST AND NON-SELF-ASSEMBLED CRANE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3141517A1 EP3141517A1 (en) | 2017-03-15 |
EP3141517B1 true EP3141517B1 (en) | 2018-08-22 |
Family
ID=55236487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16186547.2A Active EP3141517B1 (en) | 2015-09-10 | 2016-08-31 | Crane with quick assembly which is not self-ballasted |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3141517B1 (en) |
ES (1) | ES2696854T3 (en) |
FR (1) | FR3040990B1 (en) |
PT (1) | PT3141517T (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3108596B1 (en) * | 2020-03-30 | 2022-04-15 | Manitowoc Crane Group France | Self-erecting crane including a removable ballast element for transport in a fifth wheel |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2320893A1 (en) * | 1975-08-12 | 1977-03-11 | Potain Sa | Tower crane with pivoting jib - has crab travelling for entire length of main and tail jib sections |
FR2464217A1 (en) * | 1979-08-31 | 1981-03-06 | Cadillon | Lightweight mobile telescopic tower crane - has auxiliary cable for on site positioning of stabilising counterweights |
DE3028180A1 (en) * | 1980-07-25 | 1981-10-15 | Wilhelm 5020 Frechen König | Tower crane erection mechanism - has tower in hinging sections hinging on superstructure with pulley blocks |
-
2015
- 2015-09-10 FR FR1558449A patent/FR3040990B1/en not_active Expired - Fee Related
-
2016
- 2016-08-31 EP EP16186547.2A patent/EP3141517B1/en active Active
- 2016-08-31 PT PT16186547T patent/PT3141517T/en unknown
- 2016-08-31 ES ES16186547T patent/ES2696854T3/en active Active
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
PT3141517T (en) | 2018-11-16 |
ES2696854T3 (en) | 2019-01-18 |
FR3040990A1 (en) | 2017-03-17 |
EP3141517A1 (en) | 2017-03-15 |
FR3040990B1 (en) | 2017-10-13 |
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