WO2006045609A1 - Grue mobile - Google Patents

Grue mobile Download PDF

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Publication number
WO2006045609A1
WO2006045609A1 PCT/EP2005/011518 EP2005011518W WO2006045609A1 WO 2006045609 A1 WO2006045609 A1 WO 2006045609A1 EP 2005011518 W EP2005011518 W EP 2005011518W WO 2006045609 A1 WO2006045609 A1 WO 2006045609A1
Authority
WO
WIPO (PCT)
Prior art keywords
undercarriage
mobile crane
chassis
support
crane according
Prior art date
Application number
PCT/EP2005/011518
Other languages
German (de)
English (en)
Inventor
Walter Mietschnig
Original Assignee
Liebherr-Werk Nenzing 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 Nenzing Gmbh filed Critical Liebherr-Werk Nenzing Gmbh
Publication of WO2006045609A1 publication Critical patent/WO2006045609A1/fr

Links

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
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes

Definitions

  • the present invention relates to a mobile crane, in particular mobile harbor crane, with a undercarriage comprising a chassis, a rotating platform mounted rotatably about an upright rotary axle, a rotary boom carried by the rotary platform and a plurality of supporting feet which can be moved in and out are arranged on the undercarriage.
  • Figure 3 shows such a supported in a conventional manner mobile crane in a plan view, which shows the arrangement of the outriggers pairwise right and left auskra ⁇ lowing.
  • This may result in unreasonable leverage and force introduction ratios in certain positions of the superstructure.
  • the turntable is in a rotational position in which the boom is perpendicular to a diagonal Ie is defined by the uprising square defined by the outriggers, the tilting moment induced by the boom and the load hanging from it is only intercepted by a single outrigger.
  • this is the support foot at the bottom left. It goes without saying that on the one hand this results in a high stress on this one supporting foot, so that it must have a corresponding strength which brings about a relatively high weight.
  • there is a very high load on the subsurface In order to avoid excessive surface pressures, the outriggers would have to have excessively large contact plates, which are undesirable because of their bulkiness and space requirements.
  • the present invention is therefore based on the object to provide an improved mobile crane of the type mentioned, which avoids the disadvantages of the prior art and further develops the latter in an advantageous manner.
  • an improved support with a reduced component and underground load to be created without increasing the Kippkantenabstand to the crane center so ⁇ as by additional space required for the support storage and storage areas to lose.
  • more than four support feet are provided on the mobile crane, which in the extended state define a footprint with more than four corners.
  • the additional supporting feet are advantageously not arranged so that three or more supporting feet would be arranged along a straight line. Rather, the support feet are arranged such that always, ie at each Wheel ⁇ position of the revolving platform and the articulated crane boom hinged thereto, at least two support feet catch the tipping moment introduced by the crane boom.
  • an even number of support feet is provided. In principle, it would also be conceivable to provide for five or seven support feet. An even number of more than four outriggers, i. right, eight or even ten outriggers, but achieves the desired improvement d he support conditions with a better use of space.
  • the overall width of the crane with extended outriggers is not increased with the same tip edge distance compared to a conventional four-point support, so that the crane can be positioned in parallel alignment as close as possible to a load object.
  • the support feet are advantageously arranged in such a way that the support surface which is clamped on them is a five, six or polyhedral stretch which is symmetrical to the longitudinal axis of the undercarriage.
  • the support of the carriage Unter ⁇ consist of six outriggers, of which in the respective extended position two centrally to the track under the undercarriage, further zvw ⁇ ei to the right side and again another two to the left over the lane of the landing gear are arranged protruding.
  • the hexagonal contact surface spanned by the support feet can be formed symmetrically with respect to the longitudinal axis of the undercarriage. There is no widening compared to a conventional four-point support, although considerably improved support conditions are achieved.
  • the support feet which can be moved under the undercarriage are mounted on a section of the steel structure of the undercarriage which serves to suspend the chassis or to support an axle of the chassis.
  • the direct positioning of one or more outriggers directly on the steel structure for the chassis avoids additional space requirements and the loss of storage space.
  • the steel construction for the forces of the chassis is already pre-dimensioned, so that the forces introduced by the support feet are absorbed without additional reinforcements on the undercarriage and thus without additional weight.
  • the extendable under the undercarriage Abstützfsente are preferably neither horizontally retracted and extendable nor pivotable in a horizontal plane. They advantageously consist of a support foot which can be lowered vertically and a support foot support which is rigidly mounted on the steel structure and supports this support leg.
  • This simple design of lying under the undercarriage support feet can be further weight saved. Extending or swiveling out in the horizontal direction is not necessary since the length of the undercarriage is in itself sufficient to absorb corresponding tilting moments. As a result, further weight can be saved.
  • FIG. 1 shows a schematic representation of a mobile crane with a six-point support according to a preferred embodiment of the invention in a top view
  • FIG. 2 shows a schematic representation of a mobile crane with a six-point support according to a further preferred embodiment of the invention in a plan view similar to FIG. 1, and FIG.
  • FIG. 3 shows a schematic representation of a crane with conventional four-point support in a plan view, which shows the uppercarriage and the arm articulated thereon in a rotational position in which the tilting moment initiated by the outrigger must be caught by only one individual support foot ,
  • the mobile harbor crane shown in Figure 1 comprises an undercarriage 1, which is designed as a multi-axle truck.
  • the chassis 2 is in the illustrated embodiment six-axis and defined by the distance of its wheels 3 ei ne track. 4
  • a only schematically ange ⁇ indicated superstructure in the form of a revolving stage 5 is arranged in a conventional manner, which is an upright Rotary axis 6 is rotatable relative to the undercarriage 1.
  • the revolving platform 6 carries a boom 8 which can be tilted up and down about a horizontal rocking axis 7 and which can be articulated directly on the revolving platform 6 or indirectly on this to a mast or tower provided on the revolving platform 6.
  • a retractable and retractable support 9 is provided, which in the illustrated embodiment has six support feet 10, 11, 12, 13, 14 and 15.
  • the Abstute feet are arranged so that they span a regular hexagon, which is arranged symmetrically to the longitudinal axis of the undercarriage 1.
  • Two of the six support feet namely the support feet 10 and 11, are arranged below the undercarriage 1 within the track 4 defined by the chassis 2, namely centrally with respect to the longitudinal axis of the undercarriage 1 in each case in the area of the front wheels 3 and
  • These two arranged under the undercarriage 1 Abstützfpune 10 and 11 include no horizontally ausschiebbaren or pivoting about an upright axis spars, but are designed as pure lowering support feet, consisting of a rigidly mounted on the undercarriage 1 support ⁇ foot carrier and a vertically adjustable support foot consist this.
  • the support feet 10 and 11 are mounted directly on the steel structure for the chassis 2, so that no additional space requirement for these support feet 10 and 11 is required and thus no storage space is lost.
  • the support feet 10 and 11 are fastened to the sections of the steel structure of the undercarriage 1, which are provided for the mounting of the chassis 2. These sections of the chassis are already pre-dimensioned for the forces of the chassis 2 in such a way that they can also absorb the forces which are introduced from the supporting feet 10 and 11 without additional and weight-bearing reinforcements being necessary.
  • the support feet 12 and 13 as well as 14 and 15 each comprise a horizontally extendable and extendable sliding beam 16 which extends in each case lying transversely to the longitudinal axis of the undercarriage 1 to the right or left.
  • Schiebeholm e 16 a known per se and Ausschubantrieb is provided in each case.
  • Figure 2 shows an embodiment of a mobile harbor crane, which essentially corresponds to the Aus ⁇ leadership of Figure 1, so that corresponding components are provided with the same reference numerals.
  • the spars 16 of the lateral Abstützfentee 12, 1 3, 14 and 15 are formed as folding arms, which can be folded out about a substantially upright folding axis 18 relative to the undercarriage 1 and folded.
  • a piston-cylinder unit is provided in each case as a pivot drive 19, which are guided on the one hand to the folding arms 16 and on the other hand to the undercarriage 1 an ⁇ .

Landscapes

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

Abstract

La présente invention concerne une grue mobile, en particulier une grue de quai mobile, comprenant un châssis (1) qui présente un mécanisme de roulement (2), une plate-forme rotative (5) qui est montée sur le châssis de manière à pouvoir tourner autour d'un axe de rotation vertical (6), une flèche de grue (8) qui est portée par la plate-forme rotative, ainsi qu'une pluralité de pieds de soutien (10-15) qui sont montés sur le châssis de manière à pouvoir être pliés et dépliés. La grue mobile selon cette invention est caractérisée en ce que plus de quatre pieds de soutien sont prévus pour fixer, à l'état déplié, une surface de contact avec plus de quatre coins.
PCT/EP2005/011518 2004-10-27 2005-10-27 Grue mobile WO2006045609A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200420016639 DE202004016639U1 (de) 2004-10-27 2004-10-27 Mobilkran
DE202004016639.9 2004-10-27

Publications (1)

Publication Number Publication Date
WO2006045609A1 true WO2006045609A1 (fr) 2006-05-04

Family

ID=35500775

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/011518 WO2006045609A1 (fr) 2004-10-27 2005-10-27 Grue mobile

Country Status (2)

Country Link
DE (1) DE202004016639U1 (fr)
WO (1) WO2006045609A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112499538A (zh) * 2021-02-08 2021-03-16 山东广域科技有限责任公司 一种变电站运维用载人升降平台
DE102020118775A1 (de) 2020-07-16 2022-01-20 Liebherr-Werk Ehingen Gmbh Fahrbarer Kran mit Abstützvorrichtung
US11577942B2 (en) 2019-12-23 2023-02-14 Tadano Demag Gmbh Mobile crane

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013000463A1 (de) * 2013-01-03 2014-07-03 Terex Cranes Germany Gmbh Mobiles Arbeitsgerät, insbesondere Mobilkran
DE102013012233A1 (de) * 2013-07-23 2015-01-29 Liebherr-Werk Biberach Gmbh Unterwagen mit sechs Abstützungen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2370661A (en) * 1942-06-15 1945-03-06 Hal B Hayes Portable crane
US2914194A (en) * 1957-08-21 1959-11-24 American Hoist & Derrick Co Outrigger construction for carrier mounted cranes
US3393810A (en) * 1967-07-17 1968-07-23 Harvey T Solveson Method and apparatus for constructing a large capacity mobile crane
JPS51100524A (ja) * 1975-02-28 1976-09-04 Tadano Tekkosho Kk Jisokureen
JPS58214446A (ja) * 1982-06-09 1983-12-13 Kato Seisakusho:Kk トラツククレ−ンの顛倒防止装置
US4496062A (en) * 1983-03-07 1985-01-29 Harnischfeger Corporation Crane having stabilizing outriggers
US4723667A (en) * 1985-02-15 1988-02-09 Ernst Zimmerman Chassis of a heavy road vehicle particularly a multiaxle mobile crane

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7338654U (de) * 1974-04-18 Liebherr H Autokran
DE10143716B4 (de) * 2001-08-30 2004-04-15 Terex-Demag Gmbh & Co. Kg Mobiles Arbeitsgerät mit Stützträgern und Verfahren zum Betrieb dieses Arbeitsgeräts
JP2004043052A (ja) * 2002-07-09 2004-02-12 Maeda Corp 警報手段を有する移動式クレーン

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2370661A (en) * 1942-06-15 1945-03-06 Hal B Hayes Portable crane
US2914194A (en) * 1957-08-21 1959-11-24 American Hoist & Derrick Co Outrigger construction for carrier mounted cranes
US3393810A (en) * 1967-07-17 1968-07-23 Harvey T Solveson Method and apparatus for constructing a large capacity mobile crane
JPS51100524A (ja) * 1975-02-28 1976-09-04 Tadano Tekkosho Kk Jisokureen
JPS58214446A (ja) * 1982-06-09 1983-12-13 Kato Seisakusho:Kk トラツククレ−ンの顛倒防止装置
US4496062A (en) * 1983-03-07 1985-01-29 Harnischfeger Corporation Crane having stabilizing outriggers
US4723667A (en) * 1985-02-15 1988-02-09 Ernst Zimmerman Chassis of a heavy road vehicle particularly a multiaxle mobile crane

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 064 (M - 285) 27 March 1984 (1984-03-27) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11577942B2 (en) 2019-12-23 2023-02-14 Tadano Demag Gmbh Mobile crane
DE102020118775A1 (de) 2020-07-16 2022-01-20 Liebherr-Werk Ehingen Gmbh Fahrbarer Kran mit Abstützvorrichtung
CN112499538A (zh) * 2021-02-08 2021-03-16 山东广域科技有限责任公司 一种变电站运维用载人升降平台

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