EP1213253B1 - Selbstaufstellender Kran mit teleskopierbarem und zusammenklappbarem Turm - Google Patents

Selbstaufstellender Kran mit teleskopierbarem und zusammenklappbarem Turm Download PDF

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Publication number
EP1213253B1
EP1213253B1 EP01204746A EP01204746A EP1213253B1 EP 1213253 B1 EP1213253 B1 EP 1213253B1 EP 01204746 A EP01204746 A EP 01204746A EP 01204746 A EP01204746 A EP 01204746A EP 1213253 B1 EP1213253 B1 EP 1213253B1
Authority
EP
European Patent Office
Prior art keywords
tower
hinged
portions
actuator
crane
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
EP01204746A
Other languages
English (en)
French (fr)
Other versions
EP1213253A1 (de
Inventor
Piero Bertinotti
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.)
San Marco International Srl
Original Assignee
San Marco International Srl
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Filing date
Publication date
Application filed by San Marco International Srl filed Critical San Marco International Srl
Publication of EP1213253A1 publication Critical patent/EP1213253A1/de
Application granted granted Critical
Publication of EP1213253B1 publication Critical patent/EP1213253B1/de
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
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/707—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic guiding devices for telescopic jibs
    • 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 present invention refers to a tower crane with a composite structure and a foldable and successively extractable tower.
  • a tower crane comprising the features of the preamble of claim 1 is known from FR-A-1434262.
  • Self-assembling composite structure tower cranes in which the vertical element, known as the tower, consists of a pair of structural portions hinged together are known. Said portions, with the crane folded away, are horizontal and compacted, one on top of the other, whereas, with the crane assembled, they are vertical and aligned with each other to define the tower of the crane.
  • the purpose of the present invention is that of realising a self-assembling composite structure tower crane with the tower realised in at least one pair of portions hinged together and a third portion slotted into the upper portion of the hinged pair capable of being extracted so that the upper end of the tower thus realised can reach a greater height than the height which can be reached with the single pair of hinged portions.
  • another purpose of the present invention is that of realising a self-assembling crane in which the bending stresses in the two hinged portions of tower and in the members used for the assembly of the tower are reduced to a minimum.
  • Figures from 1 to 5 show a self-assembling composite structure tower crane according to the invention which has the two portions hinged together at horizontal hinges indicated with 11, 12 and 13. It is made up of a tower consisting of two portions 14 and 15, hinged together at 12, and of a third portion 16 slotted into and capable of being extracted from the upper portion 15 of the two hinged portions; the load arm 17 is made up of one or more sections hinged together and is connected through the hinge 13 to the upper end of the extractable portion of the tower 16.
  • the lower portion of the tower 14 is in turn hinged at 11 at its lower end to a per se known base structure, wholly indicated with 20, equipped with a rotating base 19.
  • a base structure 20 usually foresees means for controlling the unfolding and folding of the entire crane, not specifically indicated, which act through flexible tie rods 21 and 22 which extend laterally to the tower, essentially from the side opposing the load arm and lateral to at least one portion thereof.
  • the tie rods form, together with portions of the base structure and with portions of the crane structure, a per se known articulated quadrilateral.
  • the two hinged portions of the tower 14 and 15 pass from the horizontal position on top of one another, represented in figure 1, to the vertical and aligned position, represented in figure 3, passing through a series of intermediate positions, one of which is represented in figure 2.
  • the control devices which determine the erection and the alignment of the two hinged portions of tower are of the known type.
  • the portion of tower 16 is completely slotted into the portion of tower 15; the load arm 17, hinged at 13 to the upper end of the portion of tower 16, is arranged vertically and rested upon the portions 14 and 15 of the tower.
  • the tie rods 21 and 22 are stretched and hinged together and to the cusp 23, said cusp 23 being in turn hinged to the upper end of the portion of tower 16; the tie rod 21 rests upon the pulley 24 arranged at the end of a further cusp 25 rigidly connected to the upper end of the portion of tower 16.
  • the portion of tower with a lower section 16 is slotted into the portion of tower with a greater section 15 and has the possibility of sliding inside of it through guide rollers 26 arranged at the upper end of the portion of tower 15 and through guide rollers 27 arranged at the lower end of the portion of tower 16.
  • An actuator such as a single-acting or double-acting hydraulic cylinder 30, is arranged inside the portion of tower with a smaller section 16; the lower end of the body or barrel of the cylinder is connected through a hinge 46 to a beam 41 integral with the lower end of the portion of tower 16.
  • the end of a rod 33 of the hydraulic cylinder 30 is hinged at 43 to a support 42; the support 42 is integrally fixed to the portion of tower with a larger section 15 through two hinge bindings 44.
  • the portion of tower with a smaller section 16 is completely slotted inside the tower with a larger section 15. Extracting the rod 33 of the hydraulic cylinder 30 the push exerted by the cylinder makes the portion of tower 16 slide inside the portion of tower 15 through guide rollers 26 and 27.
  • the portion of tower 16 is extracted from the portion of tower 15 by a length equal to the stroke made by the rod 33; in such a position the portion of tower 16 is bound to the portion of tower 15 through conventional locking systems, which are not shown.
  • the rod 33 is taken back into the hydraulic cylinder; in the case of a single acting piston, when the valve for the inflow or outflow of the oil into/from the cylinder chamber is ordered to open, given the vertical position of the tower in which the extraction and re-entry operations are carried out, it is the weight itself of the overlying structure which makes the rod 33 re-enter determining the ordered re-entry of the portion of tower 16 into the portion of tower 15.
  • the support 42 is equipped on the side with runners 45 which favour the sliding of the group consisting of portion of tower 16-cylinder with inserted rod-support 42, already assembled in part, before such a group is slotted into the portion of tower 15.
  • this crane has a greater constructive simplicity which makes the construction and the assembly of the entire machine easier.
  • Yet another advantage is derived from the positioning of the hinge 46 at the lower end of the cylinder 30 which reduces the free length of inflection and therefore reduces the tip load at the pushing step.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Jib Cranes (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Leg Units, Guards, And Driving Tracks Of Cranes (AREA)

Claims (6)

  1. Turmkran mit einer selbst aufstellenden Verbundstruktur und einem faltbaren und ausfahrbaren Turm, wobei Abschnitte des Turms (14, 15) an horizontalen Gelenken (12, 13) aneinander angelenkt sind, wobei ein Lastarm (17) aus zumindest einem angelenkten Abschnitt (bei 13) besteht, die Abschnitte des Turms (14, 15) ihrerseits an einem unteren Ende an einer Lageranordnung (10) mit einem Drehschubblock (19) angelenkt sind, wobei überdies zumindest ein dritter Abschnitt (16) vorgesehen ist, der in einen der angelenkten Abschnitte (14, 15) , die den Abschnitten des Turms zugeordnet sind, eingesetzt und von diesem ausfahrbar ist, wobei der Turm mit Steuervorrichtungen ausgerüstet ist, die die Montage in die vertikale Stellung und die Demontage in die horizontale Stellung der beiden angelenkten Abschnitte des Turms und von Vorrichtungen zulassen, die das Ausfahren und das Wiedereinsetzen des dritten Abschnitts des Turms in einen der Abschnitte des Turms des angelenkten Paars zulassen,
    dadurch gekennzeichnet, dass der dritte obere Abschnitt (16), der eingesetzt und ausfahrbar ist, verschiebbar in einem (15) der beiden angelenkten Abschnitte angeordnet ist und einen kleineren Querschnitt bezüglich des Abschnitts des Turms (15) aufweist, in dem er durch das Zusammenwirken von Führungswalzen (26, 27) gleitet, die sowohl an dem Abschnitt des Turms (15) als auch an dem zumindest einen oberen Teil (16) angeordnet sind, wobei ein Aktuator (30) vorgesehen ist, der derart ausgebildet ist, dass er zwischen einer Abstützung (42), die einteilig innerhalb des angelenkten Abschnitts des Turms (15) angeordnet ist, und einem Träger (41) wirken kann, der mit einem unteren Ende des oberen Abschnitts (16) einteilig ausgebildet ist.
  2. Turmkran nach Anspruch 1,
    dadurch gekennzeichnet, dass die Abstützung (42) an dem zumindest einen oberen Abschnitt (16) durch Gelenkverbindungen (44) befestigt ist.
  3. Turmkran nach Anspruch 2,
    dadurch gekennzeichnet, dass zwischen der Abstützung (42) und dem zumindest einen oberen Abschnitt (16) Läufer (45) angeordnet sind, die ein Gleiten der Gruppe begünstigen, die aus dem Abschnitt des Turms (16), dem Aktuator (30) und der Abstützung (42) besteht, die bereits teilweise zusammengebaut sind, bevor eine derartige Gruppe in den Abschnitt des Turms (15) eingesetzt wird.
  4. Turmkran nach Anspruch 1,
    dadurch gekennzeichnet, dass der Aktuator (30) aus einem einzeln wirkenden hydraulischen Zylinder besteht.
  5. Turmkran nach Anspruch 1,
    dadurch gekennzeichnet, dass der Aktuator (30) aus einem doppelt wirkenden hydraulischen Zylinder besteht.
  6. Turmkran nach Anspruch 1,
    dadurch gekennzeichnet, dass der Aktuator (30) an dem Träger (41) (bei 46) einteilig mit einem unteren Ende des oberen Abschnitts (16) angelenkt ist.
EP01204746A 2000-12-11 2001-12-07 Selbstaufstellender Kran mit teleskopierbarem und zusammenklappbarem Turm Expired - Lifetime EP1213253B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI002661 2000-12-11
IT2000MI002661A IT1319372B1 (it) 2000-12-11 2000-12-11 Gru a torre con struttura composita automontante e torre ripiegabile e sfilabile

Publications (2)

Publication Number Publication Date
EP1213253A1 EP1213253A1 (de) 2002-06-12
EP1213253B1 true EP1213253B1 (de) 2005-03-30

Family

ID=11446203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01204746A Expired - Lifetime EP1213253B1 (de) 2000-12-11 2001-12-07 Selbstaufstellender Kran mit teleskopierbarem und zusammenklappbarem Turm

Country Status (4)

Country Link
EP (1) EP1213253B1 (de)
AT (1) ATE292085T1 (de)
DE (1) DE60109716D1 (de)
IT (1) IT1319372B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6955025B2 (en) * 2002-09-11 2005-10-18 Clipper Windpower Technology, Inc. Self-erecting tower and method for raising the tower
CN101544341B (zh) * 2009-03-27 2011-05-11 沈阳北方交通重工有限公司 汽车起重机副臂安装调整装置
CN104030173A (zh) * 2014-05-12 2014-09-10 江苏大通重工有限公司 小型塔式起重机械伸缩式塔身
CN116348408A (zh) * 2021-10-25 2023-06-27 广州五羊建设机械有限公司 一种智能吊装机器人

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1391657A (fr) * 1961-03-27 1965-03-12 Grue tractée à mât télescopique rabattable
FR1434262A (fr) * 1965-02-15 1966-04-08 Richier Sa Procédé et mécanisme de développement et de repli de la tour d'une grue de bâtiment
DE1756141A1 (de) * 1968-04-10 1970-08-20 Langenfeld Gmbh & Co Kg Maschf Hydraulischer Teleskopausleger

Also Published As

Publication number Publication date
ITMI20002661A1 (it) 2002-06-11
IT1319372B1 (it) 2003-10-10
EP1213253A1 (de) 2002-06-12
ATE292085T1 (de) 2005-04-15
DE60109716D1 (de) 2005-05-04

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