EP3941873B1 - Dispositif de levage et procédé de fabrication du dispositif de levage - Google Patents

Dispositif de levage et procédé de fabrication du dispositif de levage Download PDF

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Publication number
EP3941873B1
EP3941873B1 EP20721399.2A EP20721399A EP3941873B1 EP 3941873 B1 EP3941873 B1 EP 3941873B1 EP 20721399 A EP20721399 A EP 20721399A EP 3941873 B1 EP3941873 B1 EP 3941873B1
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EP
European Patent Office
Prior art keywords
lifting device
bearings
axis
another
booms
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EP20721399.2A
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German (de)
English (en)
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EP3941873A1 (fr
Inventor
David Mann
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Individual
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Individual
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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
    • 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
    • B66C23/36—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 mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/42—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 mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with jibs of adjustable configuration, e.g. foldable
    • 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
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • 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
    • 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
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C5/00—Base supporting structures with legs
    • B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
    • B66C5/025—Tripods
    • 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
    • B66C23/185—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 erecting wind turbines

Definitions

  • the present invention relates to a lifting device with arms of adjustable length, each having a first end portion and a second end portion opposite the first end portion, the second end portion being articulated and pivoted in a bearing.
  • the lifting device is in particular a crane.
  • each of the boom sections can be extended in a longitudinal direction and is made up of at least two boom sections. Partial boom sections arranged at a distance from one another transversely to the longitudinal direction each form a boom section with at least one rigid connecting element. The boom is linked to the superstructure with two partial booms. This design of the boom increases the load capacity by increasing the area moments of inertia of the boom.
  • an extendable crane jib in frame construction is known, which has two jib sections arranged next to one another. These are connected to each other via rigid beams.
  • U.S. 4,218,045 A a lifting device according to the preamble of claim 1 is known.
  • the lifting device of the present invention has three booms with an adjustable length, in which on the one hand the first end sections of all booms are articulated to one another and on the other hand the second end sections are articulated and pivoted in respective bearings. Accordingly, a respective individual bearing is provided for each cantilever or second end section, in which each cantilever or second end section can be moved or tilted and rotated individually. All of the bearings are arranged at fixed positions relative to one another, and are preferably spaced apart from one another. In other words, the positions of the preferably spaced-apart bearings relative to one another are unchangeable or rigid or fixed.
  • the lifting device Because the first end portions are connected to each other and the positions of the bearings are fixed relative to each other, the lifting device always assumes the shape of a tetrahedron, the faces of which are delimited or enclosed by the cantilevers and connecting lines between the bearings.
  • the lifting device may take the form of a regular or symmetrical tetrahedron, as the lifting device pivots, its shape is subject to changes. Consequently, in practical use, the lifting device usually assumes an irregular or asymmetrical or asymmetrical or irregular or oblique tetrahedron shape.
  • the three arms of the lifting device form a so-called tripod or tripod or tripod, as is known, for example, from tripods with three tripod legs, in which, however, in contrast to the lifting device according to the invention Unconnected end sections of the tripod legs are neither articulated nor rotatable.
  • Such a tripod is characterized above all by a high level of stability, as a result of which the lifting device is particularly stable overall.
  • at least the first end section can be rotated relative to the second end section about the longitudinal axis of the boom.
  • each of the cantilevers has a rotational degree of freedom about the longitudinal axis of the respective cantilever. Consequently, each of the cantilevers is designed to be rotatable in itself. To ensure maximum mobility or pivotability of the lifting device, each of the first end sections can be rotated in any direction of rotation and at any angle, including a full circle, about the longitudinal axis of the respective boom.
  • the booms of the lifting device according to the invention are only subjected to tensile and compressive forces when lifting loads, but not to bending forces. Overall, this results in a very high overall rigidity for the lifting device of the present invention. This is one of the reasons why the lifting device is significantly more stable overall and therefore considerably more resilient than a lifting device with only one boom, which consists of a similar material and has similar dimensions to the booms of the lifting device according to the invention. For these reasons, the lifting device according to the invention not only allows significantly heavier loads to be lifted than with known lifting devices.
  • the booms of the lifting device can rather be extended to their maximum length even with heavy loads, so that heavy loads can be moved over greater distances or can be moved than with known lifting devices.
  • the first end sections articulated to one another, but also the second end sections are articulated and rotatably mounted in respective bearings and because the first end sections can also be rotated relative to the second end sections of the respective branches, the interaction with the variable length or the length adjustability of the branches results in pivotability or mobility of the lifting device according to the invention, which is not possible with tripods or with known lifting devices.
  • the lifting device is forced to operate when there is a change in length of one of the booms of the other two cantilevers. Consequently, a spatial rotation of the entire system of the lifting device, which consists of all three arms, can be effected by a mere length change of only one of the arms.
  • the length adjustability of the booms can be achieved, for example, in that the booms are constructed like a telescope from telescoping partial elements, so that the booms can be telescopically shortened or lengthened by telescoping or pulling apart the partial elements.
  • At least one of the cantilevers can be rotated both about a first axis and about a second axis that can be rotated about the first axis, with the first axis and the second axis intersecting or being skewed with respect to one another, or at least one of the cantilevers being both about a first axis and also designed to be rotatable about a second axis which is rotatable about the first axis, the first axis and the second axis intersecting or being skewed relative to one another. If the first axis and the second axis intersect, they are preferably perpendicular to one another for reasons of stability or they are normal to one another.
  • the first axis is preferably aligned vertically or vertically, while the second axis is preferably aligned horizontally or horizontally.
  • the interconnected first end portions are within a polar angular range movable from almost -90° to +90° as well as within a 360° comprehensive azimuthal angular range.
  • the lifting device is distinguished by the maximum possible pivotability or mobility.
  • Each of the cantilevers can in particular be rotatable both about one of three mutually parallel first axes and about a respective second axis lying in a respective plane, each of which in turn can be rotated about a respective one of the first axes.
  • the second axes When rotating about the respective first axis, the second axes preferably remain within their respective plane or they do not leave this plane. Because the first axes are mutually parallel, each of the planes in which the second axes lie is pierced by the first axes at three points which, when joined together within one of the planes, form a triangle. It is also possible for two of the second axes to be in the same plane and for the third of the second axes to be in a different plane from this plane. In addition or as an alternative, the second axes can also all be located within one or the same plane and/or be movable within one or the same plane. For example, all of the first axes may be vertical and parallel to one another, while all of the second axes may reside and/or move within a single horizontal plane to which the first axes are normal.
  • the individual camps can either all be configured the same or differently.
  • the bearings can be ball bearings.
  • the lifting device can be arranged on a base and thereby fixed to it, or the lifting device can be made mobile be.
  • the ground is usually the ground on which the lifting device is placed and which supports the same. With a mobile design, the lifting device can easily be relocated to another location.
  • At least one of the bearings can be anchored to the ground.
  • one of the bearings can be stationary, while the respective other two bearings are movable around this stationary bearing.
  • two or all of the bearings can be or will be anchored in the ground.
  • At least two of the bearings can be or will be connected to one another. This can be done, for example, by an elongated element that not only serves as a connecting element for the bearings but also as a stabilizing element for the entire lifting device. Here, too, it is possible to connect all of the bearings to one another by means of such connecting elements.
  • At least two of the bearings can be arranged or fixed or anchored on the same base, but all bearings can also be arranged or fixed or anchored on the same base.
  • This base can be a suitable foundation such as a concrete slab or concrete base. In this way, two or all of the bearings can be designed as a compact component or component or can be integrated within one.
  • At least two of the bearings or all of the bearings can be or will be arranged at different heights.
  • the heights are determined by the prevailing terrain profiles at the place where the lifting device is used.
  • At least one of the brackets and/or one of the bearings is a part of at least one vehicle or at least one vehicle or is provided as such.
  • the vehicle is a self-propelled vehicle that may have a motor.
  • An upper carriage of the vehicle can be designed or provided as a respective bearing for one of the second end sections.
  • one or two vehicles with an upper carriage and an undercarriage can be provided within the same hoisting device, while at the same time one or two vehicles without an upper carriage are provided in the hoisting device.
  • the vehicles are particularly preferably mobile cranes, so that in a particularly preferred embodiment of the method according to the invention a mobile crane jib is provided for at least one of the jibs.
  • the lifting device as such can in this way be designed as a mobile lifting device or as a vehicle and in particular as a self-propelled vehicle.
  • Superstructures of known vehicles are usually equipped with a lifting cylinder for adjusting the stroke of booms and with a rotary drive with a toothed ring, which enables rotation of the boom about a vertical axis. Such a rotation of the boom is usually possible around a full circle. If the lifting device now has at least one such superstructure, for example because a known mobile crane has been integrated into the lifting device or three individual known mobile cranes have been connected or coupled to form a lifting device, the boom mounted in the superstructure or all booms must be separated or decoupled from it Stroke adjustment and the rotary drive or its ring gear advantageous.
  • the first end sections can be designed in such a way that they can be or are connected directly to one another. Over and beyond the first end sections can be detachably or non-detachably connected to one another or to a coupling means.
  • a lifting device with at least one coupling means which connects the first end sections to one another in an articulated manner is preferred here, with at least one of the first end sections being detachably connected to the coupling means.
  • the first end sections are connected to one another in an articulated manner by means of a coupling means, with at least one of the first end sections being detachably connected to the coupling means.
  • two or all of the first end sections to be releasably connected to the coupling means.
  • the coupling means can be separated from the extension arms or the first end sections and used elsewhere if necessary.
  • conventional lifting devices such as already existing cranes or mobile cranes can advantageously also be connected in a simple manner to form a lifting device according to the invention.
  • the coupling means of a special embodiment preferably has at least three sub-elements arranged successively along an axis of rotation and rotatable about the same, with one of the first end sections being articulated to a respective one of the sub-elements.
  • cranes have guide devices with deflection rollers for suspension cables.
  • at least one guiding device for at least one suspension cable is preferably also provided in the lifting device according to the invention.
  • the guide device can have at least one deflection roller.
  • the guide device is advantageously rotatably mounted on the coupling means.
  • the lifting device has at least one stabilization device, wherein the stabilization device has at least one base element with a longitudinal axis, which can be connected to at least one of the bearings in a substantially horizontal orientation, and at least a connecting means for detachably connecting the base member to the bearing.
  • the bearing is connected to at least one stabilization device which has at least one base element with a longitudinal axis and at least one connecting means for detachably connecting the base element to the bearing, the base element being oriented essentially lying down.
  • the horizontally oriented base element whose longitudinal axis is oriented essentially horizontally, can rest on a subsurface supporting the lifting device or the bearing, such as the ground, or be supported or spaced apart from this subsurface.
  • a subsurface supporting the lifting device or the bearing such as the ground
  • the stability of the lifting device and in particular that of mobile lifting devices is increased.
  • the stability of lifting devices can also be increased with base elements spaced from the ground, since additional structural reinforcement or rigidity of the lifting device can be achieved by suitably connecting the base element to the bearing.
  • the stabilization device can only have an elongate base element and a connecting means with which the base element can be connected, for example at one end, to one of the bearings. When connected, the base may extend away from the hoist. This increases the support base, especially for mobile lifting devices, since additional support surfaces are now available.
  • the connecting means and/or the base element is also designed to create a detachable connection between the base element and one of the bearings of the lifting device, it is possible to use the stabilization device only when necessary and only then with a bearing of the lifting device to be connected if particularly high loads are to be expected from the lifting device. Otherwise, the stabilizing device can be transported separately from the bearing in a convenient and space-saving manner.
  • the connecting means can be designed as a permanent part of the basic element or the connecting means can be part of the basic element or the basic element can have the connecting means or the connecting means can be designed as a component separate from the basic element.
  • the basic element can be made of different materials.
  • the basic element can consist at least partially or completely of a stable metal or plastic.
  • the lifting device therefore particularly preferably has at least one ballast body or weight body which is provided for arrangement on the base element, or at least one ballast body or weight body which is intended for arrangement on the base element and can be displaced to different positions along the base element. If the weight body can be arranged in different positions on the base element, for example because it can be slid or moved along the base element, an optimized balancing of the stabilization device is possible, so that the expected loads on the lifting device can be counteracted in the best possible way.
  • the weight body can be functionally integrated with the base element or the stabilization device and form a functional part of the base element or the stabilization device.
  • a connecting element connecting two or more basic elements can be provided at the same time as a functionally integrated weight body.
  • the weight body can be designed so that it can be separated from the base element or the stabilizing device.
  • the stabilizing device can have a folding support with a hinged shelf for the weight body.
  • Such a folding support can be along the elongate base element be designed to be displaceable or firmly attached or fixed to the base element. If there are two or more such folding supports, they can also be used to support elongated weight bodies, which are supported in respective sections by the shelves and otherwise extend between the shelves of the folding supports.
  • the base element is preferably designed as a lattice construction, in particular in the manner of a framework or as a framework lattice, and/or the base element has a hollow interior and/or the base element has a straight or curved shape.
  • a lattice construction or a truss lattice By means of a lattice construction or a truss lattice, a mechanically particularly stable and at the same time light design of the basic element can be realized.
  • a hollow interior of the base member contributes to weight reduction.
  • such a cavity can be used as storage space for various tools and materials, not only during the transport of the stabilization device or the lifting device, but also for accommodating weights.
  • a straight basic element is characterized by the lowest possible material requirements with the greatest possible extension, the stabilization device can be adapted to local ground conditions at the site of use of the lifting device with basic elements that have a curved shape.
  • the lifting device particularly preferably has a stabilizing device with at least one housing body arranged on the base element, in which the connecting means is accommodated in a resting state and from which the connecting means can be extended or folded out at least partially or completely.
  • a stabilizing device in which the connecting means is always designed to be exposed, such a stabilizing device can be transported in a particularly space-saving and convenient manner if the connecting means is accommodated in the housing body in the rest state.
  • the housing body can be fixedly attached to the base element or can be slid along the same and fixed in different positions.
  • the base element can be oriented in such a way that its longitudinal axis is essentially parallel to a longitudinal axis or a transverse axis of a bearing, for example an undercarriage, or that its longitudinal axis forms an angle with the longitudinal axis of the bearing.
  • the base element in the case of a mobile lifting device, with respect to the direction of travel, which usually coincides with longitudinal axes of the bearings, the base element can be arranged in front of or behind the bearing, wherein the longitudinal axis of the base element can extend parallel to the transverse axis of the bearing.
  • the base element can also be arranged to the left and right of the bearing or undercarriage with respect to the direction of travel, in which case the longitudinal axis of the base element can extend parallel to the longitudinal axis of the bearing or undercarriage.
  • the base element can be oriented in such a way that its longitudinal axis is parallel neither to the longitudinal nor to the transverse axis of the bearing, but forms respective angles with them.
  • such an oriented primitive extends from a corner of the bearing.
  • the stabilizing device have more than one basic element, which can be arranged in different ways relative to one another, depending on the requirements of the particular application and lifting device.
  • the longitudinal axes of at least two basic elements can be aligned parallel to one another or at an angle to one another, or can be arranged at different heights.
  • Two basic elements with parallel longitudinal axes can be arranged, for example, with respect to the direction of travel of a mobile lifting device to the left and right of one of the bearings or in front of and behind the bearing.
  • the longitudinal axes of the basic elements are preferably oriented parallel to the longitudinal axis of the bearing, while in the second case they are preferably oriented to the transverse axis of the bearing.
  • the mutually parallel longitudinal axes of the basic elements can also enclose respective angles with the longitudinal axis or the transverse axis of the bearing.
  • two first basic elements can be placed in front of and behind the bearing and two second basic elements can be placed to the right and left of the bearing be provided, wherein the longitudinal axes of the first basic elements are oriented parallel to the transverse axis of the bearing and the longitudinal axes of the second basic elements are oriented parallel to the longitudinal axis of the bearing.
  • a respective basic element can extend whose longitudinal axis is neither parallel to the longitudinal nor to the transverse axis of the bearing but at an angle with them forms.
  • the angles which the longitudinal axes of the respective basic elements form with the longitudinal and transverse axes of the bearing can be different for each of the basic elements.
  • the angle at which the longitudinal axes of the basic elements are aligned with one another is preferably changeable or adjustable. This achieves greater flexibility of the stabilization device with regard to different circumstances when using the lifting device and different types of terrain at the place of use.
  • the angle between the longitudinal axes of the basic elements can be an acute, an obtuse or a right angle.
  • At least one of the cantilevers is prestressed or spatially prestressed, or all cantilevers are prestressed or spatially prestressed. This can be done, for example, by twisting one of the cantilevers or all of the cantilevers. If there is a hydraulic cylinder for adjusting the stroke of the boom, such a preload can also be generated by means of the hydraulic cylinder. Accordingly, in the case of the lifting device, at least one of the booms is advantageously designed so that it can be prestressed, or all booms are designed so that they can be prestressed.
  • prestressing at least one of the cantilevers, it is possible to optimize the overall rigidity of the system of the lifting device, both in static as well as in the dynamic state of the same.
  • prestressing can be used to counteract deflection of the cantilevers and prevent them from buckling under heavy loads.
  • a first embodiment of a lifting device 1 is in figure 1 shown in side view, in top view and in a spatial representation.
  • the lifting device 1 is intended for use as a crane, components typical of a crane, such as a carrying or hoist cable and associated rollers or deflection rollers, are not shown in the figure in order to better illustrate its essential components.
  • the lifting device 1 has three elongate booms 2 with telescopic elements 3 that can be slid into one another in the manner of a telescope, one of the telescopic elements 3 of each boom 2 being additionally provided with a fixed lattice tip 3a.
  • the telescopic elements 3 are pushed into one another or pulled apart, the overall length of the cantilevers 2 is changed accordingly, or the length of the cantilevers 2 can be set or adjusted by moving the telescopic elements 3 relative to one another.
  • the telescopic elements 3 of the booms 2 are designed such that they can be rotated relative to one another about a longitudinal axis of the respective boom 2, so that each boom 2 can be rotated in itself.
  • Each of the booms 2 has a first end section 4 adjoining the fixed lattice jib 3a and a second end section 5 opposite thereto.
  • the respective first end sections 4 and the second end sections 5 of a respective boom 2 are also rotated against one another.
  • the first end sections 4 of all booms 2 are connected to one another in an articulated manner by means of a coupling element or coupling means 6
  • the second end sections 5 are mounted in respective bearings 7 in an articulated and rotatable manner.
  • the bearings 7 are arranged at the corners of an equilateral triangle and are connected to one another by elongated, grid-like stabilizing elements 8 resting on the ground.
  • Ballast or weight bodies 9 are also arranged on the stabilizing elements 8 for additional stabilization of the lifting device 1 .
  • the coupling means 6 essentially has a cylindrical outer shape. Three recesses 10 are formed in the coupling means 6 at equal angular distances. A respective one of the cantilevers 2 engages in each of the recesses 10 with its first end section 4 and is connected to it in an articulated manner inside the coupling means 6 or articulated on the coupling means 6 . Each of the cantilevers 2 can thus be tilted with respect to the coupling means 6 within a respective imaginary plane, with all three of these planes intersecting in a longitudinal axis of the coupling means 6 or with the longitudinal axis of the coupling means 6 being associated with each of these planes.
  • Each of these imaginary planes is divided by the longitudinal axis of the coupling means 6 into two sub-areas, with the cantilevers 2 each being tiltable within only one of these sub-areas of a respective plane. Since the three recesses 10 are formed at equal angular distances, both those sub-areas of the planes in which the cantilevers 2 move enclose an angle of 120° with one another, as well as those sub-planes of the planes in which the cantilevers 2 do not move.
  • a groove 13 is formed in each of the rotating elements 12, with each boom 3 engaging with its second end section 5 in the groove 13 of a respective one of the rotating elements 12 and being mounted or articulated within the same so as to be rotatable about a horizontal axis. Consequently, as a result of the rotatability of the rotating elements 12, each of the booms 2 is mounted in an articulated and rotatable manner with its second end section 5 in a respective one of the bearings 7.
  • each rotating element 12 can in principle describe a full circle around the vertical axis and the respective boom 2 articulated on the rotating element 12 can describe a semicircle around the horizontal axis
  • the booms 2 can, if there are no coupling means 6, i.e. if their first end sections 4 are not coupled to one another, in be pivoted over the entire space above a substrate supporting or supporting the lifting device 1 .
  • all booms 2 are coupled to one another with their first end sections 4 as a result of the coupling means 6 on the one hand and on the other hand as a result of the fixing of the positions of the bearings 7 relative to one another, in which their second end sections 5 are each mounted.
  • None of the cantilevers 2 can therefore be pivoted or changed in length without this affecting the other cantilevers 2 and without the other cantilevers 2 also making corresponding changes in length or pivoting or movements or following them.
  • the outriggers 2 which is a consequence of their length adjustability, the articulated connection of their first end sections 4, the articulated and rotatable mounting of their second end sections 5 in bearings 7 that are positioned relatively fixed to one another, and the ability of the outriggers 2 to rotate in themselves or of the first end sections 4 and the second end sections 5 against each other, in the case of the lifting device 1 a change in the length of one of the outriggers 2 results in forced guidance of the other two outriggers 2.
  • this interaction of the three outriggers 2 ensures a high level of pivoting or Mobility of the lifting device 1 with constantly high rigidity values of the overall system.
  • the coupling means 6 rolls off in space when the lifting device 1 is pivoted, specifically once for each revolution of the lifting device around a full circle in the azimuthal direction.
  • the lifting device 1 For every position of the booms 2 coupled to one another, i.e. regardless of how the booms 2 are currently pivoted or positioned, the lifting device 1 always assumes the shape of a mostly oblique tetrahedron, the surfaces of which are formed by the booms 2 and the stabilizing elements 8 between be limited or included in the bearings 7.
  • the booms 2 thus always form a tripod or a tripod or a tripod, regardless of their specific position, which gives the lifting device 1 a high overall stability.
  • the elongate booms 2 are only loaded by tensile and compressive forces and not by bending forces. Overall, this results in a very high overall rigidity for the lifting device 1 . For these reasons, lift much heavier loads with the lifting device 1 than with known cranes, the boom 2 of the lifting device 1 can be extended to its greatest possible length even when lifting very heavy loads and heavy loads can therefore also be displaced over comparatively long distances.
  • the lifting device 1 shown is intended to be placed on any surface, such as the ground. You can simply rest on the subsoil or soil or be anchored to the subsoil or soil. Since lifting devices or cranes often have to be used at different locations, it is advantageous if the lifting device or crane can change location as easily as possible or is mobile.
  • Such a mobile lifting device 14 shows the figure 2 .
  • the construction of the lifting device 14 corresponds to that of the lifting device 1 in FIG.
  • said mobile subsets are caterpillar undercarriages 15.
  • the mobile subsets can also be designed differently, for example as so-called self-propelled modular transporters or SPMTs.
  • Each bearing 7 or each base 11 can be rotated about a vertical axis relative to the respective crawler chassis 15 on which it is arranged.
  • Each of the crawler tracks 15 has a pair of track chains with two parallel track chains 16 which are looped around rollers 17 and can be moved around these rollers 17 either in the same direction or in opposite directions.
  • Moving the crawler tracks 16 of a pair of crawler tracks in opposite directions causes the respective caterpillar undercarriage 15 to rotate about its vertical axis or about a vertical axis of rotation.
  • the respective bearing 7 arranged on this crawler chassis 15 is prevented from following the rotation of the crawler chassis 15 due to its coupling by the stabilizing elements 8 to the adjacent bearings 7 .
  • the crawler chassis 15 can rotate freely under the bearing 7 in any direction of rotation. In this way it is possible, for example, all three crawler tracks 15 in the in the figure 2 positions shown, in which their respective pairs of crawlers are aligned at an angle to one another, so that the lifting device 14 can be rotated as a whole. In order to move the elevator 14 in a straight line, the pairs of crawlers are aligned so that they are substantially parallel to one another.
  • FIG figure 3 again shows a stationary or non-mobile lifting device 18 with three telescopically extendable booms 19 with first end sections 20 and second end sections 21.
  • the booms 19 in FIG figure 1 shown lifting device 1 not only two but a plurality telescopically telescopically slidable telescopic elements per boom 19.
  • the cantilevers 19 are designed without fixed lattice tips.
  • the first end sections 20 are connected to one another in an articulated manner by means of a coupling means 6 .
  • a guiding device 22 arranged on the coupling means 6 of the lifting device 18 for a carrying cable 23 which is provided for lifting and carrying loads can be seen.
  • the guide device 22 can be rotated or articulated on the coupling means 6 relative to the coupling means 6, so that the guidance of the carrying cable 23 is not impaired when the lifting device 18 is rotated.
  • the lifting device 18 differs from the lifting device 1 by differently designed bearings 24, in which the second end sections 21 are each articulated.
  • the bearings 24 of the lifting device 18 also have a base 25 and a rotary element which is mounted on the base 25 so as to be rotatable about a vertical first axis and which in the present case is designed like an upper carriage 26 of known mobile cranes.
  • the booms 19 are now rotatably mounted with their respective second end sections 21 in the respective bearings 24 about a horizontal second axis, which does not intersect the first axis, about which the rotary element or the superstructure 26 can be rotated, or is oriented skewed to it is.
  • the bearings 24 have respective hydraulically or pneumatically operated actuators 27 for pivoting the cantilevers 19 about this horizontal second axis.
  • the bearings are 24 connected to one another by grid-shaped stabilizing elements 8 of square cross-section resting on the floor or subsoil, the opposite ends of which are connected to respective bases 25 of adjacent bearings 24 .
  • the bearings 24 are fixed in their positions relative to one another, or the positions or arrangements of the bearings 24 relative to one another are fixed. In this case, the bearings 24 take up positions at the corners of an equilateral triangle.
  • a lifting device 28 is shown, which does not require stabilizing elements and, with the exception of the bearing 29, is otherwise in its structure with the lifting device 18 of the figure 3 is identical. While the bearings 29 have respective upper carriages 26 identical to the rotary elements or upper carriages 26 of the bearings 24 of the lifting device 18, base elements or bases 30, on which the upper carriages 26 are arranged so as to be rotatable about a vertical axis, are formed in a spur-like manner.
  • the spur-like bases 30 are provided as ground anchors or ground anchors and can be sunk into a subsurface supporting the lifting device 28, such as the ground, and anchored therein, so that the positions of the bearings 29 relative to one another are unchangeably fixed without the bearings 29 would be directly connected to each other for this purpose.
  • the hoist 28 may be anchored or secured to a suitable surface, such as a concrete foundation, plinth, or slab, by means of the bases 30 .
  • FIG 5 a lifting device 31, which in its structure up to the rotary elements or superstructure 26 carrying bases 32 and their fixation to each other with the in the figure 4 illustrated lifting device 28 is identical.
  • the lifting device 31 has respective undercarriages of known mobile cranes for carrying the rotating elements or superstructure 26 and thus as bases 32 for bearings formed from the rotating elements or superstructure 26 and the bases 32.
  • the undercarriage or bases 32 have two support beams 33 on each side, at the free end of which a support cylinder or a pressure spindle is provided for additional support of the undercarriage or the base 32.
  • the rotary elements or upper carriage 26 are rotatably arranged on the respective undercarriage or bases 32 like the upper carriage of known mobile cranes.
  • three elongated, grid-like stabilizing elements 34 are provided, which are arranged to form an equilateral triangle and are connected to one another by means of connecting means 34a located at the corners of the triangle.
  • the length of the stabilizing members 34 exceeds that of the undercarriages or bases 32, each of which is disposed outside the triangle parallel to and connected to a respective one of the stabilizing members 34 by the support cylinder or jackscrew.
  • shorter stabilizing elements 35 extend parallel to the respective undercarriage or bases 32 on the sides of the undercarriage or bases 32 facing away from the stabilizing elements 34, where, like the stabilizing elements 34, they are connected to the supporting cylinders or pressure spindles of the support beams on this side of the undercarriage or the bases 32 are connected.
  • Both the stabilizing elements 34 and the connecting means 34a and the stabilizing elements 35 rest on the substructure supporting the lifting device 31 or on the ground.
  • the connecting means 34a in particular can be particularly heavy or designed as ballast bodies.
  • the stabilizing elements 35 can also be dispensed with.
  • the lifting device 31 of figure 5 has the particular advantage that it can be assembled or set up at any location without great effort by appropriately coupling or connecting known mobile cranes.
  • the hoisting device 31 can be conveniently and easily and quickly constructed by appropriately arranging or placing three known mobile cranes and their Connecting by means of a coupling means 6 and stabilizing elements 34 are produced.
  • FIG figure 6 An example of the use of a lifting device 36 composed of three known mobile cranes is shown in FIG figure 6 , in which the erection of a wind turbine 37 by means of the lifting device 36 is shown once in a spatial representation and once in a plan view. Due to the height of such wind turbines 37 and the weight of their components, special cranes are required for their construction in practice, such as the above-mentioned lattice boom crawler cranes. However, such special cranes can only be made available for the construction of wind turbines 37 with great difficulty and at great expense. All of these difficulties do not occur with the lifting device 36, which is composed of three known mobile cranes coupled to one another.
  • the coupling means 38 consists essentially of a cylindrical central body 39, from the outer surface of which three fin-like projections 40 protrude at equal angular distances. Each projection 40 is provided with a through hole 41 so that a first end section 4 of a respective boom 2 can be articulated on each of the projections 40 .
  • a spherical coupling means 42 is in the figure 8 shown in three different views.
  • the coupling means 42 has groove-like recesses or grooves 43 at equal angular intervals, in which respective first end sections 20 of extension arms 19 engage and are connected therein in an articulated manner to the coupling means 42 or articulated therein.
  • a coupling means 44 which has three sub-elements 45 which are arranged successively along an axis of rotation. All three partial elements 45 can be rotated about this axis of rotation.
  • a first end section 20 of a boom 19 is connected to a respective one of the partial elements 45 articulated, in this case by means of a fork joint. All three first end sections 20 can be rotated about respective parallel axes of rotation oriented transversely to the axis of rotation of the sub-elements 45 .
  • mobile cranes coupled to a lifting device 46 can also be fixed in their position relative to one another by means of a more complex stabilizing device 46a, as is shown in FIG figure 10 shows as an example.
  • a respective receptacle 48 is provided for each undercarriage 47, into which the undercarriage 47 can enter and in which the undercarriage 47 is fixed or fastened.
  • the receptacle 48 can be equipped with a clamping mechanism, for example.
  • the receptacles 48 are in turn connected by means of rods 49, which are variable in length in the present case, and are thereby fixed in their positions relative to one another.
  • FIG 11 also shows three mobile cranes 51 coupled to a lifting device 50 with respective undercarriages 52.
  • Each undercarriage 52 is located within a rectangle formed by stabilizing elements 8 resting on the floor or substructure, with stabilizing elements 8 oriented parallel to the longitudinal axis of the respective undercarriage 52 on support cylinders or pressure spindles of the same are connected to this.
  • the rectangle formed from stabilizing elements 8 and connected to the undercarriage 52 the effective bearing surface of each undercarriage 52 and thus its security against tipping or stability is increased.
  • all three of the rectangles formed from stabilizing elements 8 are connected to one another in such a way that one of the stabilizing elements 8 oriented parallel to the longitudinal axis of the respective undercarriage 52 forms one side of an equilateral triangle.
  • the positions of the undercarriages 52 are also fixed relative to one another, as a result of which the immutable fixing of the bearings for the booms 19 of the lifting device 50 is achieved.
  • stabilizing elements 8 can be combined with one another in a variety of ways, on the one hand to fix the individual bearings of a lifting device or their positions relative to one another and on the other hand to increase the stability of the entire lifting device. Some of these options are in the Figures 12a )-d) shown.
  • FIG. 12a This is how it shows Figure 12a )
  • three undercarriages 52 of respective mobile cranes which are coupled to one another as base elements or bases of respective bearings of a lifting device by means of stabilizing elements 8 and are thus fixed in their positions relative to one another.
  • the stabilizing elements 8 are connected to one another to form an equilateral triangle and each of the undercarriages 52 is arranged outside of this triangle and is connected to a respective one of the stabilizing elements 8 .
  • This configuration essentially corresponds to the configuration of the stabilizing elements 35 in FIG figure 5 , although the in the figure 5 existing stabilizing elements 35 in the configuration of Figure 12a ) miss.
  • FIG 12b is the configuration of the Figure 12a ) additionally surrounded by an outer triangle formed from stabilizing elements 8 or in the Figure 12a ) is arranged including the three undercarriages 52 within an outer triangle formed from stabilizing elements 8, each of the undercarriages 52 being connected to a respective one of the stabilizing elements 8 of the outer triangle.
  • the one in the Figure 12c ) Configuration shown has an inner and an outer triangle formed from stabilizing elements 8 .
  • opposite tips of the outer and inner triangles are connected to one another by additional stabilizing elements 8 .
  • Three stabilizing elements 8 of the hexagon running parallel to the respective longitudinal axes of the undercarriage 52 are connected to the undercarriage 52, while each of the three remaining stabilizing elements 8 is connected to a respective apex of the inner triangle abutting centrally on the same.
  • the undercarriage 52 has a support device 53, which includes four support beams 54, 55, 56, 57. Of these support beams 54, 55, 56, 57, a first support beam 54 and a second support beam 55 extend from a left side of the undercarriage 52 with respect to a travel direction 58 of the undercarriage 52, and a third support beam 56 and a fourth support beam 57 extend from a right side Side of the undercarriage 52.
  • a pressure spindle or a support cylinder 59 with a support plate 60 is arranged, by which the undercarriage 52 is supported.
  • a stabilizing device 61 is connected to the support device 53 of the undercarriage 52 .
  • the stabilizing device 61 has a total of four stabilizing or basic elements 62, 63, 64, 65 designed as elongated lattice structures with a square cross section, as well as connecting means 66, with which the basic elements 62, 63, 64, 65 are detachably connected to the respective support cylinders 59 of the support device 53 are.
  • respective connecting means 66 are provided at the opposite ends of the first base element 62, with which the first base element 62 is detachably connected to the respective support cylinders 59 of the third support beam 56 and the fourth support beam 57.
  • respective connecting means 66 are provided at the opposite ends of the second base element 63, with which the second base element 63 is connected to the respective support cylinders 59 of the first support beam 54 and the second support beam 55 is detachably connected.
  • a respective end of the third basic element 64 and the fourth basic element 65 is also arranged on the latter connection means 66, so that the third basic element 64 is attached to the connection means 66 connected to the support cylinder 59 of the first support beam 54 and the fourth basic element 65 to the connection means 66 connected to the Support cylinder 59 of the second support beam 55 connected connecting means 66 is attached.
  • the third basic element 64 and the second basic element 63 are connected to the support cylinder 59 of the first support beam 54 with the same connecting means 66
  • the fourth basic element 65 and the second basic element 63 are connected to the support cylinder 59 of the second support beam 55 with the same connecting means 66 .
  • All of the basic elements 62, 63, 64, 65 are oriented lying down, which means that their longitudinal axes are aligned horizontally. While the longitudinal axes of both the first basic element 62 and the second basic element 63 run parallel to the longitudinal axis of the undercarriage 52, which in turn coincides with the direction of travel 58, the respective longitudinal axes of the third basic element 64 and the fourth basic element 65 close with the longitudinal axes of the first basic element 62 and the second basic element 63 as well as with the longitudinal axis of the undercarriage 52 or with its direction of travel 58 an angle or they are aligned obliquely to this.
  • the stabilizing device 61 has an advantageous effect on the stability or stability of the lifting device, which has the undercarriage 52, for various reasons.
  • the rigidity of the undercarriage 52 itself is increased as a result of the first basic element 62 and the second basic element 63 .
  • the third basic element 64 running obliquely away from the undercarriage 52 and the second basic element 63 increase the effective contact surface of the lifting device or they bring about additional support on the ground that carries the undercarriage 52 .
  • the lifting device is thus stabilized much better than it would be without the stabilizing device 61 .
  • a lifting device stabilized with the stabilizing device 61 can lift significantly heavier loads with a significantly greater overhang than the same lifting device could lift without the stabilizing device 53.
  • FIG 14 shows one of the connecting means 66 once in a three-dimensional view, a side view and a top view of a section through the connecting means 66 along the line AA.
  • the connecting means 66 has an essentially cube-shaped housing body 67 with an open cuboid cavity 68 .
  • a displaceable carriage 69 is arranged in the cavity 68 and carries a pincer-like or clamp-like gripping means 70 with two articulated gripping arms 71 .
  • the gripping arms 71 can be transferred between a closed state, in which they clamp an object located between the gripping arms 71, and an open state, in which they release the object.
  • the carriage 69 is shown in an extended state from the housing body 67 .
  • the connecting means 66 has a projecting plate-shaped element or plate element 73 on that side of the housing body 67 on which the carriage 69 extends out of the housing body 67 .
  • This plate element 73 is arranged offset from the extended carriage 69 towards the substructure and is oriented parallel to this substructure and is thus spaced apart from the extended carriage 69 in a vertical direction towards the substructure.
  • one of the support plates 60 of the support device 53 is first arranged on the plate element 73 during the Carriage 69 assumes the rest position, in which carriage 69 and gripping means 70 are completely inside the housing body 67 have moved in. Then the carriage 69 is extended out of the housing body 67 . During this process, the gripping arms 71 assume the open state. When the carriage 69 is in the extended state, the support cylinder 59 connected to the support plate 60 is located between the gripper arms 71.

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

Claims (15)

  1. Dispositif de levage (1, 14, 18, 28, 31, 36, 46, 50) avec trois flèches (2, 19) d'une longueur réglable, qui comprennent chacune une première portion d'extrémité (4, 20) et une deuxième portion d'extrémité (5, 21) opposée à la première portion d'extrémité (4, 20), dans lequel
    les premières portions d'extrémité (4, 20) de toutes les flèches (2, 19) sont reliées entre elles de manière articulée et
    les deuxièmes portions d'extrémité (5, 21) sont logées de manière articulée et rotative dans des paliers (7, 24, 29) correspondants, dans lequel
    les paliers (7, 24, 29) sont disposés au niveau de positions fixes les uns par rapport aux autres et
    pour chaque flèche (2, 19), au moins la première portion d'extrémité (4, 20) peut être mise en rotation par rapport à la deuxième portion d'extrémité (5, 21) autour de l'axe longitudinal de la flèche (2, 19).
  2. Dispositif de levage (1, 14, 18, 28, 31, 36, 46, 50) selon la revendication 1, dans lequel au moins une des flèches (2, 19) peut tourner aussi bien autour d'un premier axe qu'autour du deuxième axe rotatif autour du premier axe, dans lequel le premier axe et le deuxième axe se coupent et sont inclinés l'un par rapport à l'autre.
  3. Dispositif de levage (1, 14, 18, 28, 31, 36, 46, 50) selon la revendication 1 ou 2, dans lequel au moins un des paliers (29) est ancré dans le sol et/ou
    au moins deux des paliers (7, 24) sont reliés entre eux et/ou
    au moins deux des paliers (7, 24, 29) sont disposés et/ou fixés sur le même support et/ou
    au moins deux des paliers sont disposés à des hauteurs différentes et/ou
    au moins une des flèches (2, 19) et/ou un des paliers (7) fait partie d'au moins un véhicule ou est au moins un véhicule.
  4. Dispositif de levage (1, 14, 18, 28, 31, 36, 46, 50) selon l'une des revendications précédentes avec au moins un moyen de couplage (6, 38, 42, 44) qui relie les premières portions d'extrémité (4, 20) de manière articulée entre elles, dans lequel au moins une des premières portions d'extrémité (4, 20) est reliée de manière amovible avec le moyen de couplage (6, 38, 42, 44).
  5. Dispositif de levage (50) selon la revendication 4, dans lequel le moyen de couplage (44) comprend au moins trois éléments partiels (45) disposés successivement le long d'un axe de rotation et rotatifs autour de celui-ci, dans lequel une des premières portions d'extrémité (20) est reliée de manière articulée avec un élément partiel (45) correspondant.
  6. Dispositif de levage (1, 14, 18, 28, 31, 36, 46, 50) selon l'une des revendications 4 ou 5 avec au moins un dispositif de guidage (22) pour au moins un câble porteur (23), dans lequel le dispositif de guidage (22) est logé de manière rotative sur le moyen de couplage (6, 38, 42, 44).
  7. Dispositif de levage (1, 14, 18, 28, 31, 36, 46, 50) selon l'une des revendications précédentes avec au moins un dispositif de stabilisation (46a, 61), dans lequel le dispositif de stabilisation (46a, 61) comprend au moins un élément de base (8, 34, 35, 49, 62, 63, 64, 65) avec un axe longitudinal, qui peut être relié, dans une orientation globalement horizontale, avec au moins un des paliers (7, 24), ainsi qu'au moins un moyen de liaison (48, 66) pour la liaison amovible de l'élément de base (8, 34, 35, 49, 62, 63, 64, 65) avec le palier (7, 24).
  8. Dispositif de levage (1, 14) selon la revendication 7 avec au moins un poids (9) qui est destiné à être disposé sur l'élément de base (8, 34, 35, 49, 62, 63, 64, 65) ou avec au moins un poids (9) qui est destiné à être disposé sur l'élément de base (8, 34, 35, 49, 62, 63, 64, 65) et à coulisser le long de l'élément de base (8, 34, 35, 49, 62, 63, 64, 65) à différentes positions.
  9. Dispositif de levage (1, 14, 18, 28, 31, 36, 46, 50) selon l'une des revendications 7 ou 8 avec au moins un corps de boîtier (67) disposé sur l'élément de base (62, 63, 64, 65), dans lequel le moyen de liaison (66) est logé dans un état de repos et hors duquel le moyen de liaison (66) peut être sorti ou déplié au moins partiellement ou entièrement et/ou avec au moins deux éléments de base (8, 34, 35, 49, 62, 63, 64, 65) dont les axes longitudinaux sont disposés parallèlement entre eux ou forment un angle entre eux ou sont disposés à différentes hauteurs.
  10. Procédé de fabrication d'un dispositif de levage (1, 14, 18, 28, 31, 36, 46, 50) avec au moins trois flèches (2, 19) de longueurs réglables, qui comprennent chacune une première portion d'extrémité (4, 20) et une deuxième portion d'extrémité (5, 21) opposée à la première portion d'extrémité (4, 20), dans lequel
    les premières portions d'extrémité (4, 20) de toutes les flèches (2, 19) sont reliées entre elles de manière articulée,
    les deuxièmes portions d'extrémité (5, 21) sont logées de manière articulée et rotative dans des paliers (7, 24, 29) correspondants,
    les paliers (7, 24, 29) sont fixés dans leurs positions les uns par rapport aux autres et
    pour chaque flèche (2, 19), au moins la première portion d'extrémité (4, 20) est réalisée de manière rotative par rapport à la deuxième portion d'extrémité (5, 21) autour de l'axe longitudinal de la flèche (2, 19).
  11. Procédé selon la revendication 10, dans lequel au moins une des flèches (2, 19) est réalisée de manière rotative autour du premier axe ainsi qu'autour d'un deuxième axe rotatif autour du premier axe, dans lequel le premier axe et le deuxième axe se coupent ou sont réalisés de façon à être inclinés l'un par rapport à l'autre.
  12. Procédé selon l'une des revendications 10 ou 11, dans lequel au moins un des paliers (29) est ancré dans le sol et/ou
    au moins deux des paliers (7, 24) sont reliés entre eux et/ou
    au moins deux des paliers (7, 24, 29) sont disposés et/ou fixés sur le même support et/ou
    au moins deux des paliers sont disposés à des hauteurs différentes et/ou
    au moins une des flèches (2, 19) et/ou un des paliers (7) fait partie d'au moins un véhicule ou est au moins un véhicule, dans lequel, de préférence,
    au moins un des paliers est conçu comme un chariot supérieur (26) d'un véhicule et la flèche (2, 19) qui est logée à l'intérieur est séparée d'un réglage de levage et d'un entraînement rotatif du chariot supérieur (26).
  13. Procédé selon l'une des revendications 10 à 12, dans lequel les premières portions d'extrémité (4, 20) sont reliées entre elles de manière articulée à l'aide d'un moyen de couplage (6, 38, 42, 44), dans lequel au moins une des premières portions d'extrémité (4, 20) est reliée de manière amovible avec le moyen de couplage (6, 38, 42, 44).
  14. Procédé selon l'une des revendications 10 à 13, dans lequel au moins un des paliers (7, 24) est relié avec au moins un dispositif de stabilisation (46a, 61) qui comprend au moins un élément de base (8, 34, 35, 49, 62, 63, 64, 65) avec un axe longitudinal ainsi qu'au moins un moyen de liaison (48, 66) pour la liaison amovible de l'élément de base (8, 34, 35, 49, 62, 63, 64, 65) avec le palier (7, 24), dans lequel l'élément de base (8, 34, 35, 49, 62, 63, 64, 65) est orienté de manière globalement horizontale.
  15. Procédé selon l'une des revendications 10 à 14, dans lequel au moins une des flèches (2, 19) est précontrainte ou dans lequel toutes les flèches (2, 19) sont précontraintes.
EP20721399.2A 2019-03-22 2020-03-17 Dispositif de levage et procédé de fabrication du dispositif de levage Active EP3941873B1 (fr)

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PCT/DE2020/100207 WO2020192838A1 (fr) 2019-03-22 2020-03-17 Dispositif de levage

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GB202204907D0 (en) * 2022-04-04 2022-05-18 Planet 42 Ltd Improvements in and relating to assembling a structure
WO2024003576A1 (fr) * 2022-07-01 2024-01-04 Planet 42 Limited Améliorations apportées et se rapportant à l'assemblage d'une structure

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US10611607B1 (en) * 2018-10-03 2020-04-07 Timothy Williams Silo mountable rescue assembly

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DE102019002039A1 (de) 2020-09-24
EP3941873A1 (fr) 2022-01-26
JP2022526814A (ja) 2022-05-26
WO2020192838A1 (fr) 2020-10-01
US20220017337A1 (en) 2022-01-20

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