EP1084981A1 - Poutre en treillis articulée à section triangulaire - Google Patents

Poutre en treillis articulée à section triangulaire Download PDF

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Publication number
EP1084981A1
EP1084981A1 EP00114232A EP00114232A EP1084981A1 EP 1084981 A1 EP1084981 A1 EP 1084981A1 EP 00114232 A EP00114232 A EP 00114232A EP 00114232 A EP00114232 A EP 00114232A EP 1084981 A1 EP1084981 A1 EP 1084981A1
Authority
EP
European Patent Office
Prior art keywords
articulated
boom
joint
folded
lattice
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00114232A
Other languages
German (de)
English (en)
Other versions
EP1084981B1 (fr
Inventor
Gerhard Katein
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.)
Liebherr Werk Biberach GmbH
Original Assignee
Liebherr Werk Biberach GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liebherr Werk Biberach GmbH filed Critical Liebherr Werk Biberach GmbH
Publication of EP1084981A1 publication Critical patent/EP1084981A1/fr
Application granted granted Critical
Publication of EP1084981B1 publication Critical patent/EP1084981B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B66C23/342—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes with telescopic elements

Definitions

  • the invention relates to articulated, triangular in cross section Lattice girders, which are an articulated connection of those running in the profile tips Fold top straps and stretch them into their stretched or nearly stretched Swivel position and in its folded position in a side let adjacent layer spend, preferably boom of one self-assembling tower crane, which resembles an accordion in its transport position can fold on this.
  • a self-assembling tower crane is included telescopic tower known, at the outer end of a boom link is articulated, with which, if necessary, an outer boom part via a boom center piece is articulated.
  • a guy rope runs from a fixed point on the Tower-bearing revolving stage via two supports articulated in the area of the top of the tower to a fixed point on the boom-side support, at which two additional guy ropes are attached, one of which to a fixed point on the boom link and the other via at least one further support to a fixed point is guided on the outer boom part, such that the crane through Telescoping the tower in its erected operating position.
  • the outer boom part or the boom center piece which is described in EP 0 132 572 B1 is not shown, but can be provided, are so articulated with the boom articulation piece connected that this is in the folded transport position can be placed on the side of the boom link to increase the transport height to decrease if the tower crane is one, for example Mobile crane deals, the tower of which is pivotally mounted on the superstructure.
  • the object of the invention is therefore, articulated, in cross section to create triangular lattice girders of the type specified at the outset swivel in a simple and easy-to-use manner about two axes let them fold up once and stretched into each other Swivel position and on the other hand from its folded Have the position in a side-by-side position to the transport height to decrease in the desired manner.
  • this object is achieved in that the articulated connection a joint which can be pivoted about intersecting axes, e.g. universal joint is, and that with a lattice girder in the region of the joint, a support structure is connected to the one pivotally connected to the other lattice girder Rod is articulated in such a way that at a distance from the first joint a second articulated connection is made, the one with the first articulation Forms pivot axis, which is approximately at right angles to the longitudinal beams of the triangular Profiles runs.
  • a joint which can be pivoted about intersecting axes e.g. universal joint is, and that with a lattice girder in the region of the joint, a support structure is connected to the one pivotally connected to the other lattice girder Rod is articulated in such a way that at a distance from the first joint a second articulated connection is made, the one with the first articulation Forms pivot axis, which is approximately at right angles to the longitudinal
  • the lattice girders can be folded between them and pivot their extended position to each other.
  • the stretched Position are the lattice girders through the joint connecting the top chords and the butt-end faces of the two lower chords with each other connected.
  • the second articulated Loosen the connection so that the brackets fold laterally around the first joint to let.
  • the pivotable rod is expediently supported by stiffening rods and foldable about an axis of rotation in such a way that the support structure in the transport position, the installation space is not increased upwards.
  • the first joint allows after loosening the second articulated connection a side folding of the lattice girders, although the first joint alone does not create a stable connection.
  • a detachable articulated at a distance from the first joint Connection between the top chords is provided around which the lattice girder After loosening the second articulated connection, let it fold sideways.
  • the tower With a self-assembling tower crane, the tower is moved into its vertical Position swiveled with the boom parts folded. Only from this vertical Then position out, for example by telescoping an inner Tower shot, the folded boom parts unfolded and in their each other stretched position spent.
  • the folded boom parts still in its folded vertical position to the tower, that can be Boom center piece or, if this is not available, the outer boom part around the first joint and the further articulated connection between the upper chords pivot to the boom linkage in a position in which the Upper chords are parallel to each other and the heights of the profiles of the triangular lattice girders are aligned.
  • the second articulated can then Establish connection and the further articulated connection between the Loosen the top chords so that the lattice girders increase as the crane is erected can be pivoted into their extended position.
  • the rotating tower crane shown schematically in Fig. 1 consists of a pedestal 1 supported on the floor, which also, as from FIGS. 2 and 3 can be replaced by the undercarriage of a mobile crane, which in its operating position is supported by extendable supports, and from one on the pedestal or undercarriage 1 via a slewing ring 2 superstructure 3 or revolving stage.
  • a lower tower part 4 is articulated with the rotating platform 3 connected, from which an upper tower part 5 by drive means, for example one Pulley system that can be extended and retracted.
  • the tower 4, 5 can be between its transport position lying on the rotating platform 3 and its one shown in FIG. 1 pivot upright position, this pivoting usually done by an assembly block and tackle.
  • a tension element 9 is connected to a fixed point 10 of a rear support 11 which runs in the area of the tower top Joint 12 is connected to the boom articulation part 13.
  • Support 14 hinged, from the outer fixed point 15, a tension element to the Fixed point 10 of the back support 11, which for example consists of two through the Hinge 16 connected guy rods 17, 18 may exist.
  • a tension element 20 which consists of a rope or a telescopic Rod can exist, to the fixed point 21 in the end region of the boom link piece 13.
  • a guying continues to the fixed point 23 on the outer boom part 24, the guying being foldable from each other connected rods 25, 26 or ropes 27, 28 may exist.
  • the rear guy 9 can also be made of a rope or articulated and / or telescopically interconnected rods 30, 31, 32.
  • this can be connected to the boom center piece 33 Jib piece 24 also rock over the assembly winch 34, the rope 35 in the manner shown via rollers to the fixed point 36 on the boom center 33 runs.
  • the tower crane shown in FIG. 1 can be erected by erecting the tower 4, 5 and then telescoping the outer tower part 5 into its operating position spend.
  • the tower crane shown schematically in Fig. 1 is a mobile crane in shown its transport position.
  • the undercarriage 1 of the mobile crane consists of the chassis, which is provided with extendable supports 40.
  • the boom center piece 33 is folded sideways onto the boom articulation piece 35, thereby increasing the transport height of the mobile crane in the transport position reduce.
  • On the boom center piece 33 is located in the area of the base straps Cross joint the outer boom part 24 folded.
  • the tower crane is in various states during of his raising up.
  • Fig. 4 shows the pivoted by an angle of about 60 degrees to the rotating platform Tower to which the zig-zag-like boom parts are attached the tower is folded.
  • the boom center piece is still on the side of the boom linkage 13 created to reduce the transport height.
  • the rear guy 9 is still without tension, some of which is still the guy forming rods are angled on top of each other.
  • Fig. 7 shows the increasing unfolding of the guy lines with further telescoping the inner tower section 5.
  • Fig. 8 shows the state after further telescoping the inner tower section.
  • FIG. 10 which is the mounting state according to FIG. 5 corresponds to the boom articulation part 13 and the boom center part 33 by two Joints connected to each other, namely once by a pivotable about two axes Hinge, one hinge axis 50 parallel to the top chords 51, 52 of the lattice girder forming the boom link 13 and the boom center 33 runs, and on the other hand through an articulated connection, the Pivot axis indicated by the dash-dotted line 53 and the second hinge axis of the joint 67.
  • the articulated connection with the pivot axis 53 consists once of the joint 54, which is formed by a bearing fork 55, the is held by the linkages 56, 57, 58, and from the pivotable with the base spar 60 in the hinge 61 about a parallel to this axis pivotally mounted Rod 62, which carries an articulated eye at its end, which is in the storage fork 55 is boltable.
  • this is only shown by the tabs 63, 64 Articulated as a universal joint 67, so that this both a pivot around the axis 53 and around the axis 50, which are perpendicular to each other run.
  • the rod 62 is through an inclined rod 65, which is additionally through the Rod 66 is connected to the rod 62 to form an A-frame, stiffened.
  • the legs of the bars 62, 65 projecting beyond the transverse bar 66 are articulated with connected to the base spar 60 so that the rod 62 extends around the base spar 60 parallel axis 61 is pivotable.
  • the rod 56 carrying the bearing fork 55 is in the manner shown in FIG. 11 stiffened by the rods 57, 58 welded to it.
  • the distance from the universal joint 67 is between the upper chords 51, 52 are provided with a second articulated connection 68 which is detachable is to pivot the two boom parts only around the through the joints 54, 67 to allow defined pivot axis 53.
  • Mounting position is the boom center part 33 on the boom articulation part 13 folded back and folded to the side.
  • FIG. 12 shows a variant of the articulated connection shown in FIG. 11 of the boom center part 33 with the boom articulation part 13 can be seen.
  • the rods 56, 58 are by a Rod 70 stiffened, which is connected to the upper flange 51 of the boom articulation part is.
  • the triangular composite consisting of the webs 62, 75, 76 is shown in FIG Mounted in the joints 71 and 72 in the area of the lower flange 60 and the upper belt support 52 of the middle part of the boom are formed and an oblique Define running joint axis 73.
  • the hinge 72 is slightly above the upper one Belt carrier arranged to improve the foldability.
  • the outer ends of the rods 56 and 62, which are hinged together, are inclined outwards to move the swivel axis further outwards can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Microwave Tubes (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
EP00114232A 1999-09-17 2000-07-03 Poutre en treillis articulée à section triangulaire Expired - Lifetime EP1084981B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29916410U DE29916410U1 (de) 1999-09-17 1999-09-17 Gelenkig miteinander verbundene, im Querschnitt dreieckige Gitterträger
DE29916410U 1999-09-17

Publications (2)

Publication Number Publication Date
EP1084981A1 true EP1084981A1 (fr) 2001-03-21
EP1084981B1 EP1084981B1 (fr) 2005-09-14

Family

ID=8079078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00114232A Expired - Lifetime EP1084981B1 (fr) 1999-09-17 2000-07-03 Poutre en treillis articulée à section triangulaire

Country Status (4)

Country Link
EP (1) EP1084981B1 (fr)
AT (1) ATE304509T1 (fr)
DE (2) DE29916410U1 (fr)
ES (1) ES2247984T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101870436A (zh) * 2009-01-21 2010-10-27 利勃海尔比伯拉赫有限公司 塔式起重机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1084983B1 (fr) * 1999-09-17 2005-10-26 Liebherr-Werk Biberach GmbH Grue à tour
DE102007007646B4 (de) 2007-02-13 2010-11-25 Mielke, Julian Teleskopierbarer Autokran in Turmkranfuktion mit Vorrichtung zum Ausschieben und Ausklappen von Segmenten

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1518781A (fr) * 1967-01-19 1968-03-29 Loirecord Perfectionnements aux grues télescopiques à flèche repliable
DE2134083A1 (de) * 1970-11-13 1972-05-18 Edilmac Spa Waagerecht zusammenklappbarer Turmkran
FR2457243A3 (fr) * 1979-05-24 1980-12-19 San Marco Spa Charniere pour bras articule de grue permettant le rabattement juxtapose de ses troncons
DE3303524A1 (de) * 1983-02-03 1984-08-09 Wilhelm 5020 Frechen König Turmdrehkran
DE3719986A1 (de) * 1987-06-15 1988-12-29 Liebherr Werk Biberach Gmbh Turmdrehkran
DE9316113U1 (de) * 1993-10-21 1995-02-16 Liebherr Werk Biberach Gmbh Turmdrehkran

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1518781A (fr) * 1967-01-19 1968-03-29 Loirecord Perfectionnements aux grues télescopiques à flèche repliable
DE2134083A1 (de) * 1970-11-13 1972-05-18 Edilmac Spa Waagerecht zusammenklappbarer Turmkran
FR2457243A3 (fr) * 1979-05-24 1980-12-19 San Marco Spa Charniere pour bras articule de grue permettant le rabattement juxtapose de ses troncons
DE3303524A1 (de) * 1983-02-03 1984-08-09 Wilhelm 5020 Frechen König Turmdrehkran
DE3719986A1 (de) * 1987-06-15 1988-12-29 Liebherr Werk Biberach Gmbh Turmdrehkran
DE9316113U1 (de) * 1993-10-21 1995-02-16 Liebherr Werk Biberach Gmbh Turmdrehkran

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101870436A (zh) * 2009-01-21 2010-10-27 利勃海尔比伯拉赫有限公司 塔式起重机
CN101870436B (zh) * 2009-01-21 2015-03-25 利勃海尔比伯拉赫有限公司 塔式起重机

Also Published As

Publication number Publication date
DE50011156D1 (de) 2005-10-20
DE29916410U1 (de) 2000-04-27
ES2247984T3 (es) 2006-03-16
EP1084981B1 (fr) 2005-09-14
ATE304509T1 (de) 2005-09-15

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