EP3045418B1 - Grue et unite d'appui pour une telle grue - Google Patents

Grue et unite d'appui pour une telle grue Download PDF

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Publication number
EP3045418B1
EP3045418B1 EP15193106.0A EP15193106A EP3045418B1 EP 3045418 B1 EP3045418 B1 EP 3045418B1 EP 15193106 A EP15193106 A EP 15193106A EP 3045418 B1 EP3045418 B1 EP 3045418B1
Authority
EP
European Patent Office
Prior art keywords
crane
support unit
support
superstructure
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15193106.0A
Other languages
German (de)
English (en)
Other versions
EP3045418A1 (fr
Inventor
Martin Zwifka
Benjamin Schaal
Fritz-Botho Köster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tadano Demag GmbH
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Tadano Demag GmbH
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Publication date
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Publication of EP3045418A1 publication Critical patent/EP3045418A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—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
    • 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
    • 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
    • B66C23/76—Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of 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
    • B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated

Definitions

  • the invention relates to a crane comprising an undercarriage, an uppercarriage arranged on the undercarriage, a rotary connection for the rotatable mounting of the uppercarriage on the undercarriage around an axis of rotation, a support unit attached to the uppercarriage for increasing a distance between a tilting edge and the axis of rotation, so that the crane has a has increased stability and an increased load-bearing capacity, and the support unit has at least one support cylinder and a height adjustment element, a boom which is arranged opposite on the superstructure with respect to the axis of rotation of the support unit.
  • the DE 199 44 927 A1 discloses a crane with a boom which is guyed by means of a counter boom and a counterweight carriage.
  • the U.S. 3,398,967 discloses a generic crane with a leveling device and a support unit at the rear end of the superstructure.
  • the U.S. 4,275,902 discloses a crane with an auxiliary support.
  • the DE 10 2011 119 655 A1 discloses a crane with an additional outrigger.
  • a crane comprising an undercarriage, an uppercarriage arranged on the undercarriage, a rotary connection for the rotatable mounting of the uppercarriage on the undercarriage about an axis of rotation, a support unit attached to the uppercarriage for increasing a distance between a tilting edge and the axis of rotation, so that the crane has increased stability and an increased load capacity, and the support unit has at least one support cylinder and a height adjustment element, a boom which is arranged on the superstructure opposite the axis of rotation of the support unit, enables a support unit, a distance between a tilting edge of the crane and an axis of rotation to enlarge, wherein the support unit is arranged in an unloaded state of the crane with a, in particular variably adjustable, distance to the ground and a deformation of the superstructure by additional superstructure counterweight takes place in such a way that the support unit on the ground
  • the tipping edge is a virtual line that connects the crane's support points.
  • the connection of the tipping edges forms the platform of the crane. Because the distance between the tilting edge and the axis of rotation is increased, the standing area is increased.
  • An enlarged footprint results in increased stability. In particular, a force arising as a result of a load loss can be compensated. Such a force must be taken into account when dimensioning the stability of the crane. A rearward overturning moment caused by this force is to be added to a moment which is caused by a superstructure counterweight. The sum of these moments can be compensated by the enlarged footprint.
  • the increased footprint of the crane also enables additional superstructure counterweight to be provided, i.e. stacked on the superstructure.
  • a deformation of the superstructure as a result of the superstructure counterweight causes the superstructure to tilt.
  • the superstructure with the superstructure counterweight is supported on the ground.
  • the support unit thus makes it possible to stack an increased amount of uppercarriage counterweight, since deformation of the uppercarriage as a result of the uppercarriage counterweight is absorbed.
  • the increased distance between the tipping edge and the axis of rotation with the result that more superstructure counterweight can be stacked, and that the crane's load capacity is increased.
  • the additional superstructure counterweight increases a counter-torque of the crane.
  • the crane enables increased stability and at the same time an increased load capacity in an uncomplicated way. In particular, tilting of the crane in the event of a load failure is prevented.
  • the uppercarriage counterweight prevents the crane from tipping over during a setup process.
  • the standing area of the crane is given by the undercarriage, which is designed in particular rectangular.
  • the crane comprises an undercarriage and an uppercarriage arranged thereon, which is mounted on the undercarriage so as to be rotatable about the axis of rotation by means of a rotary connection.
  • the crane can further comprise a boom for lifting a load.
  • the boom is pivotably attached to the superstructure.
  • the boom is in particular pivotable about a horizontally arranged boom pivot axis.
  • the support unit serves as a stabilizing element in particular during transport of the crane, for example on a low-loader. Further proppants are not necessary.
  • the crane is in a safe transport position.
  • the crane according to the invention has advantages over a crane with a superlift mast for guying the main boom.
  • the effort involved in setting up and transporting the superlift mast can be dispensed with.
  • the minimum swing radius of the crane according to the invention is reduced. It is not necessary to lengthen the caterpillar carriers in order to form an enlarged support surface. Lengthening the caterpillars is costly and requires more space on the construction site.
  • an increased central ballast can also be dispensed with. The setup of the central ballast, which is arranged concentrically to the axis of rotation of the crane, is time-consuming.
  • the crane is a mobile crane.
  • the undercarriage can have a crawler chassis or a road chassis.
  • the crane can also have a non-mobile pedestal or a foundation, with respect to which the uppercarriage is rotatably arranged.
  • the base or the foundation are also known as the pedestal frame.
  • the crane can be a lattice boom crane or a telescopic crane.
  • a crane in which the support unit has at least one support cylinder enables direct support on the ground. It is possible to provide more than one support cylinder, in particular two support cylinders.
  • the support cylinders are in particular arranged symmetrically with respect to a central plane which is oriented perpendicular to the luffing axis, around which a boom is articulated so as to be luffable on the crane.
  • a total line of action of the support cylinders is arranged parallel to the central plane and in particular in the central plane. In this case, the lateral stability with respect to the central plane is increased.
  • the crane has increased lateral stability with regard to a transverse load in a direction transverse to the luffing plane.
  • the support cylinders are arranged asymmetrically with respect to the central plane.
  • a linear guide oriented transversely to the central plane that is to say parallel to the rocking axis, in particular horizontally, is provided.
  • Different support cylinder positions with respect to the central plane can be set continuously or by means of a defined grid.
  • the support effect that is to say the support, is improved.
  • the supporting force is reliably diverted into the subsurface.
  • the support unit is reliably supported on the ground.
  • a crane in which the support unit has a height adjustment element enables a vertical distance between the support unit and the ground to be adjusted.
  • a height adjustment element is, for example, a hydraulic cylinder.
  • Mechanical height adjustment elements such as a spindle drive, a rack drive or a scissor mechanism are also conceivable.
  • electrical or electronic height adjustment elements in the form of a linear drive with an electric motor are also possible.
  • a crane in which the support unit is arranged on the superstructure opposite the boom relative to the axis of rotation enables an advantageous compensation of the additional superstructure counterweight.
  • there is a load breakdown in which a tilting moment acts on the crane caused is advantageously intercepted.
  • An opposing arrangement of support unit and boom with respect to the axis of rotation is given in the context of the invention, for example, when the boom is arranged at a front end of the superstructure and the support unit is arranged at a rear end of the superstructure opposite the front end.
  • the front and rear ends of the superstructure are arranged in particular on the respective shorter edge of a rectangular contour of the superstructure in a plane perpendicular to the axis of rotation.
  • the support unit which in particular has exactly one support cylinder, can for example be arranged on the superstructure diametrically opposite the main boom in relation to the axis of rotation.
  • the support cylinders can be arranged at any angle to the luffing plane with respect to the boom.
  • the luffing plane is oriented perpendicular to a boom luffing axis.
  • the support cylinders are arranged at an angle to the luffing plane starting from the boom of 95 ° to 265 °, in particular in an angular range of 105 ° to 255 °, in particular in an angular range of 120 ° to 240 °, in particular in an angular range of 135 ° to 225 °, in particular in an angular range from 150 ° to 210 ° and in particular from 165 ° to 195 °.
  • the support unit is arranged, in particular, exclusively on the respectively shorter edge of the rectangular contour of the superstructure.
  • the support cylinders are arranged on the superstructure with respect to the main boom in such a way that a resulting line of action of the vertical support is arranged diametrically opposite the boom.
  • the support unit in particular the support cylinder, can alternatively or additionally also be arranged on the longer edges of the rectangular contour of the superstructure.
  • a line connecting a respective support cylinder to the superstructure is then oriented transversely, in particular perpendicular, to the luffing plane.
  • Such support units are used in particular to provide improved lateral support for the superstructure.
  • a crane with the support unit attached directly to the superstructure enables uncomplicated and immediate support.
  • the crane is straightforward.
  • the support unit can be attached to the superstructure by means of an intermediate element, in particular in the form of an intermediate frame.
  • the support unit is attached indirectly to the superstructure.
  • the arrangement of the support unit is flexible in this case.
  • a crane in which the intermediate element is designed to be variable in length along a direction of change in length simplifies a flexible, length-changed arrangement of the intermediate element.
  • the direction of change in length is oriented in particular parallel to a plane perpendicular to the axis of rotation.
  • the direction of change in length is in particular oriented parallel to the ground and in particular horizontally.
  • the support unit is attached to the intermediate element.
  • a length-changing drive is used, in particular, which can be implemented, for example, as a telescopic cylinder, as a cable pull, as a rack drive and / or as a linear drive.
  • a crane in which the support unit has a displacement element for moving the support unit along the ground enables the crane with the support unit to be moved on the ground.
  • more than one displacement element can be provided on the support unit.
  • the displacement element is arranged on the support unit so that it can be rotated and / or slid about an, in particular horizontally oriented, axis of rotation relative to the base.
  • the displacement element is in particular rotatable about a, in particular vertically oriented, longitudinal axis of a support cylinder.
  • the displacement element can have a displacement element drive.
  • the displacement element can be a wheel or a caterpillar or a support runner.
  • the displacement element can also be designed as a sliding jaw.
  • a crane in which the support unit is arranged on the superstructure such that it can be displaced between a working position and a transport position, enables flexible and advantageous conversion from the working position to the transport position.
  • the support unit can be folded on the superstructure, that is to say can be pivoted, in particular attached about a vertical pivot axis, by means of a folding mechanism.
  • a crane in which the support unit is arranged at a distance from the ground in an unloaded state of the crane enables flexible handling of the crane, in particular a movement of the crane with the support unit mounted. At the same time, secure support is guaranteed when the upper structure is loaded with an upper structure counterweight.
  • the distance between the support unit and the ground is variably adjustable. The distance between the support unit and the ground in the unloaded state of the crane is a measure of the permissible deformation of the superstructure, from which an additional support of the superstructure, i.e. the crane, takes place via the support unit on the ground.
  • a crane in which a deformation of the superstructure causes a tilt in such a way that the support unit is supported on the ground ensures reliable support of the crane even with an additional superstructure counterweight.
  • a crane with an, in particular variably adjustable, external load upon reaching which the support unit lifts off the ground, enables an increased counter-torque in the load case and at the same time allows the superstructure to rotate freely with respect to the undercarriage.
  • a crane with an uppercarriage counterweight arranged on the uppercarriage enables an increase in the load capacity.
  • the superstructure counterweight is arranged in a plane perpendicular to the axis of rotation between the axis of rotation and the support unit.
  • the superstructure counterweight unlike a central ballast, is arranged eccentrically with respect to the axis of rotation.
  • the superstructure counterweight is arranged with respect to the axis of rotation on the superstructure in such a way that it can exert a counter-torque with respect to a load torque that has been caused by an external load on the boom.
  • the superstructure counterweight is arranged such that it can be displaced in the radial direction with respect to the axis of rotation, the counter-torque caused by the superstructure counterweight can be set variably.
  • a drivable counterweight displacement unit is provided in order to displace the superstructure counterweight, in particular in an automated manner, in a drivable manner relative to the axis of rotation.
  • the superstructure counterweight is arranged to be linearly displaceable on the superstructure.
  • a support unit can be retrofitted to a crane as a retrofit kit.
  • the support unit can be attached to the superstructure as a retrofittable support unit.
  • the resulting advantages for the support unit correspond to the advantages of the crane, to which reference is made.
  • a method for operating a crane has in particular the method steps of providing a crane with an undercarriage, with an uppercarriage arranged on the undercarriage, with a rotary connection for the rotatable mounting of the uppercarriage on the undercarriage about an axis of rotation and with a support unit attached to the uppercarriage for enlarging a distance of a tipping edge from the axis of rotation, so that the crane has increased stability and an increased load capacity. Furthermore, the method step is provided that the crane is arranged in an unloaded state with the support unit at a distance from the ground other than zero.
  • the method step is provided that the crane is supported on the ground in a load case, in particular when a, in particular adjustable, defined load is reached, in particular by resting on the ground with a support element.
  • a load case is given, for example, in the event of a load breakdown and / or when an additional superstructure counterweight is set up.
  • FIG. 1 An in Figs. 1 and 2 schematically shown crane 1 is a mobile crane.
  • the crane 1 can be moved on a ground 2.
  • the crane 1 has a mobile undercarriage 3 which, according to the exemplary embodiment shown, has a center piece 4 and caterpillar carriers 5 attached to it on both sides.
  • the crawler tracks 5 define a direction of travel 6. According to Fig. 1 the direction of travel 6 is directed horizontally from right to left. Instead of the crawler tracks 5, a road chassis can also be provided for the drivability of the crane 1.
  • An upper carriage 8 is rotatably mounted on the undercarriage 3 via a rotary joint 7.
  • the rotary connection 7 defines an axis of rotation 9 about which the superstructure 8 can be rotated.
  • the axis of rotation 9 is oriented perpendicular to the substrate 2 and in particular aligned vertically.
  • a boom 10 is articulated on the upper carriage 8 so as to be pivotable about a boom pivot axis 11.
  • the boom pivot axis 11 is oriented perpendicular to the axis of rotation 9 and perpendicular to the direction of travel 6.
  • the boom pivot axis 11 is particularly oriented horizontally.
  • the boom 10 has a boom longitudinal axis 12 which is pivoted with respect to the horizontal 13 by a luffing angle ⁇ .
  • the rocking angle ⁇ is approximately 45 °.
  • the rocking angle ⁇ is typically between -20 ° and 90 °.
  • the boom 10 is arranged below the horizontal 13, that is, between the subsurface and the horizontal 13. This is the case, for example, at the start of a setup process.
  • the luffing angle ⁇ is followed by a guying angle, which is arranged between the jib longitudinal axis 12 and a guying bracket 14. According to the exemplary embodiment shown, this guying angle is approximately 120 °. In the crane 1 shown, the sum of the luffing angle and bracing angle can be in an angular range from -20 ° to 180 °.
  • a guy stand 14 is also provided on the superstructure 8, which is used to brace the boom 10 via a draw-in rope 15 and a main boom guy 16.
  • the boom 10 is a main boom.
  • the main jib guy ropes 16 are designed as guy ropes and engage a jib tip, not shown, of the jib 10.
  • An upper carriage counterweight 17 is arranged on the upper carriage 8.
  • the superstructure counterweight 17 has a plurality of counterweight plates 18 which are stacked on top of each other on the superstructure 8. For reasons of space and / or stability, as in Fig. 2 shown, two stacks of counterweight plates 18 can be arranged on the edge above the central part 4 of the undercarriage 3.
  • the superstructure counterweight 17 is arranged offset in relation to the axis of rotation 9 along the direction of travel 6.
  • the superstructure counterweight 17 is arranged in the direction of travel 6 behind the axis of rotation 9.
  • the superstructure counterweight 17 is arranged along the direction of travel 6 in a rear region of the superstructure 8.
  • the boom pivot axis 11 is arranged in a front region of the upper carriage 8.
  • the superstructure 8 has a rectangular contour oriented perpendicular to the axis of rotation 9, the two shorter edges of the rectangle being oriented parallel to the boom pivot axis 11 and the two longer edges of the rectangle being oriented parallel to the direction of travel 6.
  • a weight force caused by the superstructure counterweight 17 causes a counter-torque with respect to the rotary connection 7, which counter-torque counteracts a load torque caused by the boom 10 with a load possibly attached to it.
  • An intermediate element 19 is arranged in a rear region of the upper carriage 8 oriented along the direction of travel 6.
  • the intermediate element 19 is designed as a supplementary frame.
  • the intermediate element 19 is attached directly to the upper carriage 8.
  • a support unit 20 is attached to the intermediate element 19.
  • the support unit 20 is fastened indirectly to the upper carriage 8 by means of the intermediate element 19.
  • the support unit 20 comprises a support cylinder 21, which is designed as a hydraulic cylinder as a height adjustment element.
  • a support element in the form of a support plate 22 is provided on an underside of the support cylinder 21.
  • the support unit 20 is arranged in a floating manner on the upper carriage 8. This means that the support unit 20 is arranged at a distance D from the ground.
  • the support unit 20 can also be arranged lying on the ground. In this case, the distance D is equal to zero.
  • the size of the definable distance D is particularly dependent on the number of counterweight plates placed on it, that is to say on the size of the weight force caused by the superstructure counterweight 17, which causes the superstructure 8 to bend.
  • the distance D is adjustable in the case of a length-variable design of a support cylinder 21. It is also conceivable that the support unit 20 is designed to be permanently in contact with the ground.
  • the support unit 20 has precisely one support cylinder 21 which is arranged centrally on the intermediate element 19 in relation to a width direction of the crane 1.
  • the Support cylinders 21 and in particular the support unit 20 itself are arranged symmetrically with respect to a central plane of the crane 1.
  • the center plane is oriented vertically and contains the axis of rotation 9.
  • FIG Figures 3 to 5 Another embodiment of the invention is shown in FIG Figures 3 to 5 shown. Components corresponding to those described above with reference to Figs. 1 and 2 have already been explained, have the same reference numerals and will not be discussed again in detail.
  • FIG Fig. 4 A loaded state of the crane 23 is shown in FIG Fig. 4 shown.
  • a load can take place, for example, by attaching a superstructure counterweight 17.
  • the superstructure counterweight 17 is arranged eccentrically with respect to the rotary joint 7.
  • the superstructure counterweight 17 causes a counter-torque.
  • the weight of the superstructure counterweight 17 leads to a deformation of the superstructure 8.
  • the deformation of the superstructure 8 is shown in FIG Fig. 4 shown in solid line.
  • the original, undeformed contour of the superstructure 8 is in Fig. 4 shown in dashed lines.
  • the deformation of the superstructure 8 has the effect that the support unit 20 with the support plate 22 is pressed down towards the ground 2.
  • the deformation of the superstructure 8 is so great that the support unit 20 with the support plate 20 rests on the ground 2.
  • the crane 23 is additionally supported by the support unit 20.
  • the resulting support surface 24 is in Fig. 5 shown schematically.
  • the support surface 24 is rectangular and results from the size and arrangement of the crawler tracks 5.
  • the axis of rotation 9 is arranged on the support surface 24.
  • the axis of rotation 9 can also be arranged eccentrically with respect to the rectangular support surface 24.
  • the boom pivot axis 11 is arranged in front of the axis of rotation 9 in the direction of travel 6.
  • the support unit 20 is arranged opposite the direction of travel 6 behind a rear end of the rectangular support surface 24. As soon as a load on the crane 23, as in Fig. 4 As shown, when the crane 23 occurs, the support unit 20 provides additional support.
  • the new tilting edge 26 displaced to the rear intersects the support unit 20.
  • the mode of operation of the crane 23 according to the invention is explained in more detail below.
  • the crane is loaded, for example, by the fact that additional, in Fig. 4
  • the superstructure counterweight 17 shown is arranged on the superstructure 8.
  • the additional superstructure counterweight 17 causes a deformation of the superstructure 8. This deformation can be tolerated and supported by means of the support unit 20 in that the superstructure 8 is deformed in such a way that the support unit 20 rests on the ground 8.
  • the crane is additionally supported by the support unit 20.
  • the superstructure 8 enables an increased counter-torque, which results in an increase in the load capacity of the crane 23.
  • the upper carriage 23 additionally has an enlarged support surface in that the rear tilting edge is arranged at an enlarged distance d from the axis of rotation 9.
  • the support unit 20 also ensures that, in the event of a load breakdown, a rearward-directed dynamic which is added to the counter-torque caused by the upper carriage counterweight 17. The sum of these two counter-torques directed backwards is absorbed by the support unit 20 on the upper carriage 8. The stability of the crane 23 is increased.
  • FIG Figures 6 and 7 Another embodiment of the invention is shown in FIG Figures 6 and 7 shown. Components corresponding to those described above with reference to Figs. 1 to 5 have already been explained, have the same reference numerals and are not discussed again in detail.
  • the essential difference of the crane 27 according to the above embodiments is that the support unit 20 is already in the unloaded state according to FIG Fig. 6 is supported on the substrate 2. The supporting effect occurs immediately.
  • FIG Fig. 8 Another embodiment of the invention is shown in FIG Fig. 8 shown.
  • Components corresponding to those described above with reference to Figures 1 to 7 have already been explained, have the same reference numerals and will not be discussed again in detail.
  • the crane 28 essentially corresponds to the crane 27, the support unit 29 being designed in such a way that it has two support cylinders 21.
  • the two support cylinders 21 of the support unit 29 are arranged symmetrically in relation to the central plane which contains the axis of rotation 9. The use of two support cylinders 21 enables greater lateral stability with a load that is oriented transversely to the central plane.
  • FIG Figures 9 and 10 Another embodiment of the invention is shown in FIG Figures 9 and 10 shown. Components corresponding to those described above with reference to Figures 1 to 8 have already been explained, have the same reference numerals and will not be discussed again in detail.
  • the crane 30 essentially corresponds to the crane 1 according to FIG Fig. 1 .
  • the essential difference is that the intermediate element 19 is designed to be variable in length along a direction of change in length.
  • the direction of change in length 31 is oriented in the opposite direction to the direction of travel 6.
  • the direction of change in length 31 is oriented in particular parallel to the substrate 2 and in particular horizontally.
  • a telescopic cylinder (not shown) can be provided.
  • the new tilting edge 26 is positioned in particular by defining the vertical distance D between the underside of the support plate 22 and the Background 2 and / or the horizontal distance d of the support unit 20 from the axis of rotation 9.
  • the horizontal distance d can be set variably.
  • a minimum horizontal distance d 1 and a maximum horizontal distance d 2 are possible.
  • the intermediate distances can be set in a continuously variable manner.
  • a support runner 32 is provided on the underside of the support cylinder 21.
  • the support runner 32 can be designed identically to the support plate 12 in the side view 9. In the view of the crane 30 from the rear according to FIG Fig. 10 it becomes clear that the support runner 32 has an enlarged width compared to the support plate 22.
  • FIG. 11 Another embodiment of the invention is shown in Fig. 11 shown.
  • Components corresponding to those described above with reference to Figures 1 to 10 have already been explained, have the same reference numerals and will not be discussed again in detail.
  • the crane 30 shown consists in that the crane 33 has a support unit 29 with two support cylinders 21, on the underside of which a support runner 32 is provided in each case.
  • Fig. 12 shows a transport arrangement of the crane 30 according to FIG Figures 9 and 10 .
  • the crane 30 is in a transport state, ie the superstructure counterweight 17 is dismantled.
  • the boom is also dismantled.
  • the crane 30 is arranged on a low loader 34.
  • the support unit 20 serves to support the crane 30, in particular the superstructure 8, on the low loader 34.
  • the crane 30 is in a safe, reliable transport arrangement. Unintentional loosening of the transport arrangement is prevented.
  • a support plate 22 can be used instead of the support runner 32 to support the superstructure 8 on the low-loader 34.
  • FIG Figures 13 and 14 Another embodiment of the invention is shown in FIG Figures 13 and 14 shown. Components corresponding to those described above with reference to Figs. 1 to 12 have already been explained, have the same reference numerals and will not be discussed again in detail.
  • the support unit 35 has a displacement element in the form of driven support wheels. It is also conceivable that the displacement element 36 does not have a drive, but is attached to an end of the support cylinder 21 facing the subsurface so that it can rotate at least about a horizontal axis of rotation 38.
  • the displacement elements 36 enable the superstructure 8 to be displaced and / or pivoted about the axis of rotation 9 with respect to the undercarriage 3. A rotary movement of the superstructure can be supported by driven support wheels.
  • the displacement elements 36 are mounted rotatably with respect to a longitudinal axis of the support cylinder 21.
  • displacement elements 36 which are rotated by 90 ° about the vertical longitudinal axis of the support cylinder 21, the displacement elements 36 are oriented parallel to the crawler tracks 5.
  • the crane 37 can travel straight ahead and, in particular, can be assisted.
  • FIG. 15 Another embodiment of the invention is shown in Fig. 15 shown.
  • Components corresponding to those described above with reference to Figures 1 to 14 have already been explained, have the same reference numerals and will not be discussed again in detail.
  • the essential difference between the crane 40 and the crane 37 is that two support cylinders 21 with displacement elements 36 attached to them are arranged.
  • the displacement elements 36 are on the support cylinders 21 are arranged to be rotatable about their respective longitudinal axes. Possible arrangements of the displacement elements 36 are shown in FIG Fig. 15 shown as an example.
  • the displacement elements 36 are designed to be flexible and enable a travel and / or rotary movement of the crane 37 to be supported.
  • FIG Figures 16 and 17 Another embodiment of the invention is shown in FIG Figures 16 and 17 shown. Components corresponding to those described above with reference to Figures 1 to 15 have already been explained, have the same reference numerals and will not be discussed again in detail.
  • the main difference between the crane 41 and the one in Figures 13 and 14 The embodiment shown consists in that the displacement elements are designed as drivable support caterpillars 39.
  • the support caterpillars 39 have a reduced length.
  • FIG Fig. 19 Another embodiment of the invention is shown in FIG Fig. 19 shown.
  • Components corresponding to those described above with reference to Figures 1 to 18 have already been explained, have the same reference numerals and will not be discussed again in detail.
  • the crane 27 shown is the displaceability of the superstructure counterweight 17 in a radial direction relative to the axis of rotation 9.
  • a first radial distance r 1 is shown with solid lines.
  • a potential second radial distance r 2 which is greater than the first radial distance r 1 , is shown in dashed lines.
  • the uppercarriage counterweight 17 can be displaced radially by means of a telescopic tube 44 which is mounted telescopically in the uppercarriage 8 of the crane 43.
  • the superstructure counterweight 17 is arranged displaceably on a separate slide on the superstructure 8. The way of the radial displacement is irrelevant in this regard. It is essential that the counter-torque that can be caused can be varied due to the displaceability of the superstructure counterweight 17 is adjustable.

Landscapes

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

Claims (10)

  1. Grue comprenant
    a. une infrastructure (3),
    b. une superstructure (8) disposée sur l'infrastructure (3),
    c. une liaison rotative (7) destinée au montage de la superstructure (8) sur l'infrastructure (3) de manière rotative sur un axe de rotation (9),
    d. une unité de support (20 ; 29 ; 35) fixée à la superstructure (8) et destinée à augmenter une distance (d) d'un bord basculant (26) à l'axe de rotation (9) de sorte que la grue (1) présente une stabilité accrue et une capacité de charge accrue, et l'unité de support (20 ; 29 ; 35) comporte au moins un cylindre de support (21) et un élément de réglage de hauteur,
    e. une flèche (10) qui est disposée sur la superstructure (8) à l'opposé de l'unité de support (20 ; 29 ; 35) par rapport à l'axe de rotation (9),
    caractérisé en ce que, lorsque la grue (1 ; 23) n'est pas chargée, l'unité de support (20) est disposée à une distance (D) au sol (2) qui est notamment réglable de manière variable, et une déformation de la superstructure (8) est effectuée par un contrepoids de superstructure supplémentaire de manière à ce que l'unité de support (20) soit supportée par le sol (2).
  2. Grue selon la revendication 1, caractérisée en ce que l'unité de support (20 ; 29 ; 35) comporte un élément d'appui, notamment une plaque de support (22).
  3. Grue selon l'une des revendications précédentes, caractérisée en ce que l'unité de support (20 ; 29 ; 35) est fixée directement à la superstructure (8).
  4. Grue selon l'une des revendications 1 à 3, caractérisée en ce que l'unité de support (20 ; 29 ; 35) est fixée à la superstructure (8) au moyen d'un élément intermédiaire (19).
  5. Grue selon la revendication 4, caractérisée en ce que l'élément intermédiaire (19) est conçu pour être de longueur variable dans une direction de variation de longueur (31).
  6. Grue selon l'une des revendications précédentes, caractérisée en ce que l'unité de support (20 ; 29 ; 35) comporte un élément de déplacement (36 ; 39) destiné à déplacer l'unité de support (20 ; 29 ; 35) le long du sol (2).
  7. Grue selon l'une des revendications précédentes, caractérisée en ce que l'unité de support (20 ; 29 ; 35) peut être disposée sur la superstructure (8) de façon à pouvoir être déplacée entre une position de travail et une position de transport.
  8. Grue selon la revendication 1, caractérisée par une charge extérieure, notamment réglable de manière variable, l'unité de support (20) se soulevant du sol (2) lorsque ladite charge est atteinte.
  9. Grue selon l'une des revendications précédentes, caractérisée par un contrepoids de superstructure (17) qui est disposé notamment selon une direction de déplacement (6) entre l'axe de rotation (9) et l'unité de support (20 ; 29 ; 35), le contrepoids de superstructure (17) étant disposé de manière à être déplaçable par rapport à l'axe de rotation (9) en particulier dans la direction radiale.
  10. Grue selon l'une des revendications précédentes, caractérisée en ce que, pour augmenter une distance (d) d'un bord basculant (26) à l'axe de rotation (9), l'unité de support (20 ; 29 ; 35) est fixée à la superstructure (8) ou est intégrée dans la superstructure (8).
EP15193106.0A 2015-01-13 2015-11-05 Grue et unite d'appui pour une telle grue Active EP3045418B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015200358.2A DE102015200358A1 (de) 2015-01-13 2015-01-13 Kran sowie Stützeinheit für einen derartigen Kran

Publications (2)

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EP3045418A1 EP3045418A1 (fr) 2016-07-20
EP3045418B1 true EP3045418B1 (fr) 2021-07-07

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US (1) US9950913B2 (fr)
EP (1) EP3045418B1 (fr)
CN (1) CN105776039B (fr)
AU (1) AU2015268653B2 (fr)
BR (1) BR102015030534B8 (fr)
DE (1) DE102015200358A1 (fr)
SA (1) SA116370198B1 (fr)

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CN111217264B (zh) * 2020-03-13 2025-07-15 徐工集团工程机械股份有限公司建设机械分公司 起重机
CN121047274B (zh) * 2025-11-04 2026-01-06 山东中博重工机械有限公司 一种塔式回转胶带布料机

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Also Published As

Publication number Publication date
BR102015030534B8 (pt) 2022-11-29
CN105776039A (zh) 2016-07-20
AU2015268653A1 (en) 2016-07-28
US9950913B2 (en) 2018-04-24
AU2015268653B2 (en) 2019-08-22
US20160200556A1 (en) 2016-07-14
SA116370198B1 (ar) 2018-07-15
DE102015200358A1 (de) 2016-07-14
BR102015030534A2 (pt) 2016-09-27
BR102015030534B1 (pt) 2022-02-15
CN105776039B (zh) 2018-05-29
EP3045418A1 (fr) 2016-07-20

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