EP1426321B1 - Grue mobile avec flèche en deux parties - Google Patents

Grue mobile avec flèche en deux parties Download PDF

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Publication number
EP1426321B1
EP1426321B1 EP03022158A EP03022158A EP1426321B1 EP 1426321 B1 EP1426321 B1 EP 1426321B1 EP 03022158 A EP03022158 A EP 03022158A EP 03022158 A EP03022158 A EP 03022158A EP 1426321 B1 EP1426321 B1 EP 1426321B1
Authority
EP
European Patent Office
Prior art keywords
mobile crane
main boom
boom
crane according
winch
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.)
Expired - Lifetime
Application number
EP03022158A
Other languages
German (de)
English (en)
Other versions
EP1426321A1 (fr
Inventor
Hans Dieter Willim
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 Ehingen GmbH
Original Assignee
Liebherr Werk Ehingen 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 Ehingen GmbH filed Critical Liebherr Werk Ehingen GmbH
Publication of EP1426321A1 publication Critical patent/EP1426321A1/fr
Application granted granted Critical
Publication of EP1426321B1 publication Critical patent/EP1426321B1/fr
Anticipated expiration legal-status Critical
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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
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/68—Jibs foldable or otherwise adjustable in configuration
    • 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
    • B66C23/82—Luffing gear
    • B66C23/821—Bracing equipment for booms
    • B66C23/823—Bracing equipment acting in vertical direction

Definitions

  • the invention relates to a mobile crane with a long main boom according to the preamble of claim 1.
  • main boom with luffing grid tips.
  • tipping tips retention braces must be provided. Moreover, they are usually after erecting the main boom in a bent relative to the main boom position.
  • a mobile crane with a long main boom according to the preamble of claim 1 is already known from DE 101 07 389 A.
  • Object of the present invention is now to be able to erect main boom with long boom lengths without derrick boom, whereby the entire erection process is facilitated and in particular long main boom can be erected.
  • the two-part main boom is connected at a pivot point such that it is bendable when erecting to be brought into a stretched or almost elongated final assembly position, wherein the main boom at least one pressure arm is pivotally mounted about a pivot point and wherein a Verstellwinde is provided associated adjusting bottle can be pulled over a reeving of the hoist cable to the top of the push rod, where it can be fixed by a hook.
  • This erected main boom does not require retention.
  • the intermediate piece with the at least one pressure link can be arranged at any point of the boom.
  • a fold-out support can be hinged.
  • the mobile crane may have an auxiliary winch, over which an auxiliary rope can be unwound or wound up.
  • About the adjusting the adjusting bottle can be retractable for erecting the bent front main boom part.
  • two pressure arms can be arranged parallel to each other.
  • the pivot axes of the two pressure arms may be arranged obliquely to the main boom, wherein a lateral bracing can be achieved by the oblique arrangement of the pivot axes of the two pressure arms, whereby the lateral stability of the boom is further increased.
  • a mobile crane 10 is shown with a main boom 12, wherein the main boom 12 consists of a lower boom portion 14 and an upper boom portion 16 which are pivotally connected to each other about a pivot point 18.
  • the entire boom length of the main boom 12 is constructed on the ground.
  • This main boom has a special intermediate piece, which is provided with a knee joint and a pressure link and is installed instead of a standard intermediate piece. The installation of this intermediate piece can be made at any point of the boom.
  • Figure 5 shows that at the upper part of the main boom 16, a pressure arm 20 is provided which is pivotable about a pivot point 22 relative to the upper arm 16.
  • the push rod 20 is a little raised when erecting the main boom with an auxiliary crane 24 from the transport position until there is a lever arm with respect to the pivot point 22.
  • a foldout Support 26 By a foldout Support 26, the pressure arm 20 is held in this position.
  • two rollers 28 and 30 are arranged.
  • an auxiliary winch 32 is provided, via which an auxiliary cable 34 is withdrawn and shown in the backward order, as shown in phantom in Figure 5 partially to a hoist winch 36.
  • the auxiliary cable 34 is coupled to the hoist rope wound on the hoist winch.
  • the hoist rope is then pulled forward by means of the auxiliary rope 34 to a fixed point 38 near the top of the upper part 16 of the main boom 12.
  • the hoisting rope is bolted to the fixed point 38.
  • FIG. 6 shows the erection process of the pressure link 20.
  • the pressure arm 20 By winding the hoist rope on the hoist winch 36, the pressure arm 20 automatically adjusts itself and tensioned front bracing rods 40.
  • a Verstellwinde 42 On the main boom 12, a Verstellwinde 42 is arranged, with an adjusting bottle 44 is connected.
  • the upper adjusting cylinder 48 By unwinding an adjusting cable 46 from the adjusting winch 42 and simultaneously winding the hoist winch 36, the upper adjusting cylinder 48 is pulled to the tip of the pressure arm until a bolt 50 provided on the upper adjusting cylinder 48 engages in a hook 52 (see FIG. 7 and in particular detail A) FIG. 7).
  • the hook 52 can be lifted with a short auxiliary cable 54 (compare detail A to FIG. 7).
  • the short auxiliary cable 54 is connected to the long auxiliary cable 34, so that the necessary force can be applied via the auxiliary winch 32.

Landscapes

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

Claims (6)

  1. Grue mobile (10) avec une longue flèche principale (12), qui est divisée en deux et reliée à un point de pivotement (18) de telle sorte que lors du relevage elle peut être pliée pour pouvoir être amenée dans une position de montage finale étirée ou presque étirée,
    Caractérisée en ce qu'est disposé d'une manière pivotante à la flèche principale (12) au moins un bras de pression (20) autour d'un point de pivotement (22) et en ce qu'un treuil de déplacement (42) est prévu dont le moufflage associé (44) peut être tiré par un passage du câble de levage vers la pointe du bras de pression (20), où il peut être fixé par un crochet (52).
  2. Grue mobile selon la revendication 1, caractérisée en ce qu'un support repliant (26) est disposé au bras de pression (20).
  3. Grue mobile selon l'une des revendications 1 ou 2 caractérisé en ce qu'un treuil auxiliaire (32) est prévu sur lequel un câble auxiliaire (34) peut être déroulé respectivement enroulé.
  4. Grue mobile selon l'une des revendications 1 à 3, caractérisé en ce que deux bras de pression (20) sont disposés parallèlement l'un à l'autre.
  5. Grue mobile selon la revendication 4, caractérisé en ce que les axes de pivotement des deux bras de pression (20) sont disposés en biais à la flèche principale.
  6. Grue mobile selon l'une des revendications 4 ou 5, caractérisé en ce que par le treuil de déplacement (42), le moufflage (44) pour relever la partie de flèche principale pliée avant (16) peut être rentré.
EP03022158A 2002-12-06 2003-09-30 Grue mobile avec flèche en deux parties Expired - Lifetime EP1426321B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20218971U 2002-12-06
DE20218971U DE20218971U1 (de) 2002-12-06 2002-12-06 Mobilkran mit langen Auslegern

Publications (2)

Publication Number Publication Date
EP1426321A1 EP1426321A1 (fr) 2004-06-09
EP1426321B1 true EP1426321B1 (fr) 2006-05-31

Family

ID=32103537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03022158A Expired - Lifetime EP1426321B1 (fr) 2002-12-06 2003-09-30 Grue mobile avec flèche en deux parties

Country Status (3)

Country Link
US (1) US7219810B2 (fr)
EP (1) EP1426321B1 (fr)
DE (2) DE20218971U1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1608581B1 (fr) * 2003-04-02 2010-05-19 Terex Demag GmbH Fleche en deux parties pour grue a fleche en treillis et technique d'erection
DE202005016743U1 (de) * 2005-10-25 2007-03-29 Liebherr-Werk Ehingen Gmbh Kran
DE102007056289B4 (de) * 2007-10-29 2009-06-04 Liebherr-Werk Ehingen Gmbh Verfahren zum Aufrichten eines Kranauslegers
US8839966B2 (en) 2009-03-31 2014-09-23 Manitowoc Crane Companies, Llc Folding jib main strut and transportable reeved strut caps
EP2476642B1 (fr) * 2011-01-12 2013-07-24 Manitowoc Crane Companies, LLC Procédé de raccordement des sections d'assemblage de suspension de grue et ensemble monté sur cadre utilisé avec celui-ci
DE102011014585A1 (de) * 2011-03-21 2012-09-27 Liebherr-Werk Ehingen Gmbh Verfahren zum Aufrichten eines Auslegers eines Kranes
DE102012019248A1 (de) * 2012-09-28 2014-04-03 Liebherr-Werk Biberach Gmbh Turmdrehkran
DE102013002415B4 (de) 2013-02-11 2019-04-25 Liebherr-Werk Ehingen Gmbh Verfahren zum Aufrichten eines langen Auslegers und Kran
CN103708362B (zh) * 2013-12-27 2015-12-09 浙江三一装备有限公司 一种履带起重机内折叠式臂架及起重机
JP6834789B2 (ja) * 2017-06-05 2021-02-24 コベルコ建機株式会社 ストラットの引き起こし方法、およびクレーン
CN116443745B (zh) * 2023-06-16 2023-10-20 杭州未名信科科技有限公司 塔吊系统及控制方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE339191C (de) * 1920-06-01 1921-07-16 Maschf Augsburg Nuernberg Ag Fahrbarer Eisenbahndrehkran
US3028018A (en) * 1959-05-08 1962-04-03 Alfred H Mott Collapsible boom for mobile cranes
US3173549A (en) * 1962-03-22 1965-03-16 Emil A Bender Material handling device
GB981129A (en) * 1962-10-05 1965-01-20 John Allen & Sons Oxford Ltd Improvements relating to crane booms
US3209920A (en) * 1964-02-12 1965-10-05 T S Decuir Combination crane
US3426915A (en) * 1967-08-28 1969-02-11 Caterpillar Tractor Co Collapsible weight handling boom
FR2152491B1 (fr) * 1971-09-15 1977-07-08
US3804264A (en) * 1972-12-08 1974-04-16 Harnischfeger Corp Tower crane with rockable top sector
US4068762A (en) * 1975-09-11 1978-01-17 Kennard Jr Dwight Clinton Pickup truck derrick
FR2409225A1 (fr) * 1977-11-21 1979-06-15 Creusot Loire Perfectionnement aux grues telescopiques
US4194638A (en) * 1978-06-07 1980-03-25 The Manitowoc Company, Inc. Ring supported tower crane
US4383616A (en) * 1980-12-24 1983-05-17 Kidde, Inc. Luffing jib for construction crane
US5292016A (en) * 1992-10-08 1994-03-08 The Manitowoc Company Luffing jib backstop assembly
EP0970914B1 (fr) * 1998-07-07 2009-03-18 Terex Demag GmbH Grue mobile avec flèche télescopique
DE10022658B4 (de) * 1999-06-28 2007-10-04 Terex-Demag Gmbh & Co. Kg Teleskopkran
DE20022790U1 (de) * 1999-06-28 2002-07-04 Demag Mobile Cranes GmbH & Co. KG, 80333 München Teleskopkran
DE20107984U1 (de) * 2000-04-28 2001-12-06 Demag Mobile Cranes GmbH, 66482 Zweibrücken Fahrzeugkran mit wippbarem Hilfsausleger
JP2002060183A (ja) * 2000-08-10 2002-02-26 Hitachi Constr Mach Co Ltd 油圧クレーン
ITMI20010116A1 (it) * 2001-01-23 2002-07-23 San Marco Internat S R L Gru a torre a struttura composita automontante con torre ripiegabile e sfilabile e braccio a piu' porzioni
DE10107389A1 (de) * 2001-02-07 2002-08-22 Atecs Mannesmann Ag Vorrichtung zum Aufrichten einer Wippstütze eines Kranes

Also Published As

Publication number Publication date
US7219810B2 (en) 2007-05-22
US20040124167A1 (en) 2004-07-01
DE20218971U1 (de) 2004-04-08
DE50303557D1 (de) 2006-07-06
EP1426321A1 (fr) 2004-06-09

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