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EP1084983A1 - Grue à tour - Google Patents

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Publication number
EP1084983A1
EP1084983A1 EP00118413A EP00118413A EP1084983A1 EP 1084983 A1 EP1084983 A1 EP 1084983A1 EP 00118413 A EP00118413 A EP 00118413A EP 00118413 A EP00118413 A EP 00118413A EP 1084983 A1 EP1084983 A1 EP 1084983A1
Authority
EP
European Patent Office
Prior art keywords
boom
piece
support
fixed point
tower
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
EP00118413A
Other languages
German (de)
English (en)
Other versions
EP1084983B1 (fr
Inventor
Gerhard Katein
Horst Zerza
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
Priority claimed from DE29919790U external-priority patent/DE29919790U1/de
Application filed by Liebherr Werk Biberach GmbH filed Critical Liebherr Werk Biberach GmbH
Publication of EP1084983A1 publication Critical patent/EP1084983A1/fr
Application granted granted Critical
Publication of EP1084983B1 publication Critical patent/EP1084983B1/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 a guyed tower crane with a to the top of the tower Articulated boom articulation piece, with which another articulated boom piece is articulated is connected to a rear guy element from a fixed point on a revolving stage to a fixed point at one in the area of the spire articulated support runs, and with two additional bracing elements, which by one Fixed point of support or a fixed point of another, in the area of Spire articulated support that is connected to the first support by a tension element is connected to fixed points on the boom link and the other Boom piece run.
  • 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 the revolving stage supporting the tower is articulated via two in the area of the top of the tower Props to a fixed point on the boom-side prop, at the two additional guy ropes are attached, one of which is at a fixed point on the Boom articulation piece and the other to at least one additional support Fixed point is guided on the outer boom part, such that the crane by telescoping the tower into its erected operating position leaves.
  • the object of the invention is therefore to provide an easily assembled tower crane to create the type specified, its boom in the assembled state represents a statically determined system.
  • this object is achieved in that between the boom link piece and the further boom section switched a short boom section is that articulated with its upper boom with the boom link and its Lower chord articulated to the other boom section and with stop pieces is provided on the end faces of the remaining upper and lower chords, which are in the region of an approximately extended position of the jib pieces at the stop points the lower straps of the boom link and the short boom put together.
  • the Another boom piece is a boom center piece with an articulated lower chord outer boom section is connected to the top chords of the boom center section and the outer boom section are provided with stop pieces, which are in Area of their extended position to each other, and that a guy from the fixed point of the support instead of to a fixed point on the middle of the boom, via the support in the area between the boom link piece and the boom center piece and a support in the area between the boom center piece and the outer boom piece to a fixed point on the outer boom piece runs.
  • in the guyed Condition of the boom a gap between the stop pieces of the The top chords of the center boom section and the outer boom section remain, see above that there is a statically determined system.
  • the boom center piece is provided with a support fork provided is that during the boom deployment with a holding piece of the guy element hooked.
  • This support with the catch fork is an auxiliary support during the unfolding of the boom, which the necessary transfer of the Guy element between the boom center piece and the outer boom piece causes.
  • the holding piece can be a hinge axis between two the guy element forming poles.
  • the support provided with the safety fork is Expediently provided with a holding device, which this in such Condition keeps the catch fork when folding the boom again comes into engagement with the holding piece.
  • the support can also be designed as a telescopic rod, in which case the Catch fork can be omitted by permanently attaching the upper support point to the guy point is articulated. This solution is safer because of the intervention a catch fork is not required.
  • the telescopic support part guarantees a sure that the corresponding boom bracing point hits the support during boom assembly.
  • the geometric Arrangement of the support and boom articulation points is chosen so that the guy lines in the operating, assembly and transport positions are always present in almost stretched form, so that they can also be designed as ropes which, on the one hand, cannot be found anywhere due to the elongated shape can get tangled during assembly and which, on the other hand, can pivot sideways allow the boom parts to each other in a simple manner.
  • this embodiment is a very light and inexpensive in weight Bracing created.
  • a mostly Assembly rope provided with an assembly thread over a roll of the support between the boom link and the boom center to a fixed point runs on the boom center piece.
  • the assembly rope also has a load-bearing function when the boom is extended and the boom center piece stops as a third jib guying at an end point during crane operation, so that the upper belt attachment point between the boom center and head piece in the stretched Boom condition is without contact. This makes a statically indeterminate System avoided.
  • 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 1 or undercarriage via a slewing ring 2 superstructure or revolving platform 3.
  • a lower tower part 4 is connected to the revolving platform 3, from which an upper tower part 5 by drive means, for example a block and tackle, can be extended and retracted.
  • the tower 4, 5 can be between his on the revolving stage 3 lying transport position and its apparent from Fig.
  • a tension element 20 which consists of a Rope or a telescopic rod can exist to the fixed point 21st in the end region of the boom linkage 13.
  • a tension element 20 which consists of a Rope or a telescopic rod can exist to the fixed point 21st in the end region of the boom linkage 13.
  • the rod 25 is designed here as a telescopic rod.
  • the guy 25, 26, 27, 28 between the fixed point 15 on the support 14 and the fixed point 23 on the outer boom piece 24 runs over fixed points of the Intermediate supports 50 and 51, of which the support 50 is articulated on the articulation axis the hinge 54 between the boom link and the boom center and the support 51 is articulated to the end portion of the boom center 33 is.
  • 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 33 and boom part 24 is still laterally applied to the boom link 13 to reduce the transport height.
  • the rear guy 9 is still without tension, some of which is still the rods forming the bracing 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.
  • a short boom piece 52 is between the boom link 13 and the Boom center piece 33 a short boom piece 52 with a similar profile switched.
  • This short extension piece 52 is with the upper chord or the upper chords, depending on whether the cantilever pieces from lattice girders with triangular or square Profile exist, the boom link 13 through the hinge with the hinge axis 54 connected.
  • the short boom section 52 is with its lower belt supports with the lower belt supports of the boom center piece 33 articulated by a hinge with the hinge axis 55 connected.
  • the lower flange of the boom link 13 and the short Cantilever piece 52 are provided with stops 56 which extend when stretched Support the booms against each other.
  • the upper belt carrier is also in a corresponding manner or the top chord beams of the short boom section 52 and the boom center section 33 provided with stops 57, which during the boom deployment and usually support each other in the transport state.
  • the outer boom piece 24 is also articulated Connection of the lower chords with the articulated axis 58 to the middle section of the boom 33 connected.
  • the upper belt carriers are provided with stops 59 on their end faces, that lie against each other in the stretched state.
  • the components are designed that in the operating state shown in Fig. 1 between the upper flange of the The boom center piece 33 and the short boom piece 52 have a gap on the one hand is, so the stops 57 are not supported on each other and on the other between the upper chord of the boom part 33 and 24, the upper chord stops 59 support each other.
  • auxiliary support 60 mounted, which is provided with a catch fork 61 at its outer end is.
  • This auxiliary support 60 serves in the unfolding and folding of the Cantilever pieces of the tension cable over the articulated connection between the boom center piece 33 and the outer boom piece 24 engages the catch fork in a hinge axis 62 which the guy rods 27 and 27 ' connects with each other.
  • the auxiliary support remains in the assembled position of the crane 60 in a position in which it engages again when the crane is folded comes with the hinge axis 62.
  • the location and component lengths of the supports 51, 60 and the boom guy lines 27, 28 are chosen according to the invention so that the guy lines 27 and 28 during crane operation and in the assembly and transport position are stretched so far that tangling of these braces with others Components is prevented (see e.g. Fig. 7).
  • the assembly rope 35 takes over in the Operating position of the crane, i.e. when the boom is unfolded, a load-bearing function.
  • the mounting screw 34 In order to fulfill this function, the mounting screw 34 must be used accordingly dimensioned and locked in operation.
  • a statically determined system However, the following modification to the system according to FIG. 1 must be ensured 10 is required: between the stops 59 of the upper chords of the middle section of the boom 33 and the outer boom part 24 must when the boom is extended a gap should be formed in the working position.
  • the formed by the stops 59 Upper belt contact point is not necessary in the arrangement shown in FIG. 11 and only serves as a security element in the event that the assembly and Should break tether 35, then to prevent the boom from falling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Control And Safety Of Cranes (AREA)
EP00118413A 1999-09-17 2000-08-24 Grue à tour Expired - Lifetime EP1084983B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE29916415 1999-09-17
DE29916415U 1999-09-17
DE29919790U DE29919790U1 (de) 1999-09-17 1999-11-04 Turmdrehkran
DE29919790U 1999-11-04

Publications (2)

Publication Number Publication Date
EP1084983A1 true EP1084983A1 (fr) 2001-03-21
EP1084983B1 EP1084983B1 (fr) 2005-10-26

Family

ID=26062776

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00118413A Expired - Lifetime EP1084983B1 (fr) 1999-09-17 2000-08-24 Grue à tour

Country Status (4)

Country Link
EP (1) EP1084983B1 (fr)
AT (1) ATE307777T1 (fr)
DE (1) DE50011424D1 (fr)
ES (1) ES2250057T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012018111A1 (de) 2012-09-13 2014-03-13 Liebherr-Werk Biberach Gmbh Turmdrehkran
WO2014048516A1 (fr) * 2012-09-28 2014-04-03 Liebherr-Werk Biberach Gmbh Grue pivotante sur pylône

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009005237A1 (de) 2009-01-21 2010-07-29 Liebherr-Werk Biberach Gmbh Turmdrehkran

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0132572A1 (fr) * 1983-06-21 1985-02-13 Liebherr-Werk Bischofshofen GmbH Grue à tour télescopique
DE8205723U1 (de) * 1982-03-02 1986-04-24 König, Wilhelm, 5020 Frechen Drehkran
DE29916410U1 (de) * 1999-09-17 2000-04-27 Liebherr-Werk Biberach GmbH, 88400 Biberach Gelenkig miteinander verbundene, im Querschnitt dreieckige Gitterträger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8205723U1 (de) * 1982-03-02 1986-04-24 König, Wilhelm, 5020 Frechen Drehkran
EP0132572A1 (fr) * 1983-06-21 1985-02-13 Liebherr-Werk Bischofshofen GmbH Grue à tour télescopique
DE29916410U1 (de) * 1999-09-17 2000-04-27 Liebherr-Werk Biberach GmbH, 88400 Biberach Gelenkig miteinander verbundene, im Querschnitt dreieckige Gitterträger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012018111A1 (de) 2012-09-13 2014-03-13 Liebherr-Werk Biberach Gmbh Turmdrehkran
WO2014048516A1 (fr) * 2012-09-28 2014-04-03 Liebherr-Werk Biberach Gmbh Grue pivotante sur pylône

Also Published As

Publication number Publication date
EP1084983B1 (fr) 2005-10-26
ATE307777T1 (de) 2005-11-15
ES2250057T3 (es) 2006-04-16
DE50011424D1 (de) 2005-12-01

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