EP1862422A2 - Bereifter Portalkran - Google Patents

Bereifter Portalkran Download PDF

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Publication number
EP1862422A2
EP1862422A2 EP07109029A EP07109029A EP1862422A2 EP 1862422 A2 EP1862422 A2 EP 1862422A2 EP 07109029 A EP07109029 A EP 07109029A EP 07109029 A EP07109029 A EP 07109029A EP 1862422 A2 EP1862422 A2 EP 1862422A2
Authority
EP
European Patent Office
Prior art keywords
crane
crane according
load
leg
legs
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.)
Withdrawn
Application number
EP07109029A
Other languages
English (en)
French (fr)
Other versions
EP1862422A3 (de
Inventor
Michele Gagliardi
Antonio Marsico
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.)
GAGLIARDI, MICHELE
Original Assignee
Costruit Srl
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 Costruit Srl filed Critical Costruit Srl
Publication of EP1862422A2 publication Critical patent/EP1862422A2/de
Publication of EP1862422A3 publication Critical patent/EP1862422A3/de
Withdrawn legal-status Critical Current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
    • B66C5/00—Base supporting structures with legs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • B66C19/005—Straddle carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • B66C19/02—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries collapsible

Definitions

  • the present invention relates to a new self-propelled portal crane on pneumatic-tyred wheels of the gantry-crane or transporter-crane type.
  • Translation occurs preferably by means of the same four wheels, which are also driving wheels actuated by hydraulic or electrical in-wheel motor reducers incorporated in the hub.
  • the self-propelled crane comprises a central structural load-bearing body or frame 1, which is formed substantially by a quadrilateral of solid-web girders made of steel plate having a thickness and dimensions compatible with the dimensions and the loads of the machine and is supported by four force legs built along the lines of articulated parallelograms, each of which comprises a first "connecting rod” element 11 and a second "connecting rod” element 2, which are hinged, in the top part, to the central body 1 and, in the bottom part, to the rotation thrust bearing 5 that enables steering of the wheels R.
  • Said first and second connecting rods 11 and 2 are substantially H-shaped, and the body of the first connecting rod 11 is provided with a further stiffening arm 13, which moves fixedly with respect thereto. Said first connecting rod 11 turns about a horizontal axis 14 set transverse to the central body 1.
  • the static determinacy of the structure is ensured by a pair of hydraulic cylinders for each leg: during the step of lowering of the structure 1, the first cylinder 3 works in compression and pushes, whilst the second cylinder 4 works in tension and pulls; whereas during the step of raising of the structure 1 the first cylinder 3 works in tension and pulls, whilst the second cylinder 4 works in compression and pushes.
  • said hooks 8 are double crooks (preferably four in number), arranged as a quadrilateral in a way conformable to the central body 1.
  • the oil under pressure which is necessary for the steps of lowering/raising, traction, and steering is supplied by a purposely provided hydraulic assembly, with heat engine of a known, commercially available, type.
  • the movement of each of the legs from the vertical position to the substantially horizontal one and vice versa is independent of that of the others; consequently, it is possible to level the machine even though the terrain is rough.
  • Levelling is obtained via a PLC that reads the inclinometers and controls the distributor valves.
  • the control of the steering imposed by the crane driver occurs always via PLC.
  • the four double hooks 8 are lifted/lowered by means of the ropes 10 that run over the sheaves 7, which, when the machine is raised or lowered, pull the ropes 10 or let them go, so forcing the hooks 8 to be raised or lowered by an amount much greater than what could be obtained if said double hooks 8 were constrained directly to the central body 1.
  • the rope 10 of each hook 8 runs over at least three sheaves 7: a bottom sheave set in the proximity of the wheel R at the end of the connection rods 11 and 2 of the respective leg; an intermediate sheave is located at the respective angle of the central body 1; and a top sheave, from which the corresponding double hook 8 hangs, is set on the central body 1 of the crane.
  • a second peculiar characteristic of the invention consists in the fact that the top sheave and the intermediate sheave are both fixed with respect to the central body 1, whilst the bottom sheave is fixed with respect to the bottom end of the connection rods 11 and 2.
  • the distance between the top and intermediate sheaves is constant, whilst the distance between the latter and the bottom sheave varies as the inclination of the respective leg varies.
  • the distance between the intermediate and bottom sheaves is maximum when the leg is vertical (crane raised) and minimum when the leg is completely inclined (crane lowered).
  • a simplified variant of the invention (not illustrated) is without the bottom sheave: in this case, the bottom end of the rope 10 is fixed directly to the attachment of the pin of the bottom sheave itself.
  • each rope 10 will run over more than one pair of intermediate and bottom return sheaves 7, so that if N is the number of said pairs of return sheaves 10 and if L Max and L Min are the maximum and minimum distances between the bottom sheave and the intermediate one, when the leg of the crane passes from the vertical position to the completely tilted one, the respective hook 8 will be lowered by N* (L Max - L Min ) with respect to the central body 1. Instead, when the leg returns into the vertical position, the corresponding hook 8 is raised by the same amount.
  • the lowered position assumed by the crane will be intermediate between the one represented in Figure 1 and the one represented in Figure 2 and, in said situation, the loads will be secured to the hooks 8 and will be lifted by raising the entire machine by a height equal to the sum of the amount of raising of the central body 1 and of the travel of the hook 8, which is proportional to the number of returns to which the rope 10 that runs over the sheaves 7 is subjected.
  • the hooks 8 will be constrained directly to the main body 1 via appropriate fixed supports 9, leaving the ropes 10 slack (see Figure 2).
  • a third peculiar characteristic of the invention consists in the fact that the crane described so far is equipped with a levelling system designed to keep the load-bearing main body or frame 1 levelled so as to enable proper and safe movement of the loads.
  • Said levelling system comprises two electronic inclinometers of a known type commonly available on the market, which are rigidly fixed to the frame 1 with horizontal lie and with the respective axes perpendicular to one another. With said arrangement, the plane formed by the axes of the inclinometers and the plane of lie of the frame 1 are parallel by construction.
  • An appropriate software detects the variations of horizontality of the plane formed by the axes of the inclinometers and, via the hydropneumatic accumulators already described, actuates the cylinders 3 and 4 that control inclination of each leg of the crane, bringing the frame 1 back into the horizontal lie.
  • the crane is able to move about both on inclined surfaces and on rugged terrain, without the horizontality of the main frame 1 being adversely affected.
  • a hydraulic or electrical motor reducer 6 (not represented in the drawings because it is covered by the first connecting rod 11 or inner arm of the force leg), equipped with encoders or other equivalent electronic device to detect, instant by instant, the angular position of the wheel with respect to the body of the machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
EP07109029A 2006-05-30 2007-05-28 Bereifter Portalkran Withdrawn EP1862422A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITCS20060008 ITCS20060008A1 (it) 2006-05-30 2006-05-30 Crab lifter - gru gommata per marciare su qualsiasi terreno.

Publications (2)

Publication Number Publication Date
EP1862422A2 true EP1862422A2 (de) 2007-12-05
EP1862422A3 EP1862422A3 (de) 2008-12-17

Family

ID=38326193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07109029A Withdrawn EP1862422A3 (de) 2006-05-30 2007-05-28 Bereifter Portalkran

Country Status (2)

Country Link
EP (1) EP1862422A3 (de)
IT (1) ITCS20060008A1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102190252A (zh) * 2011-07-13 2011-09-21 大连华锐股份有限公司 履带式门式起重机
CN102774747A (zh) * 2012-08-09 2012-11-14 郑州新大方重工科技有限公司 一种通用门式起重机走行大车转向机构
CN107022786A (zh) * 2016-01-29 2017-08-08 天津亚轩科技有限公司 一种新型电镀装置
CN107022785A (zh) * 2016-01-29 2017-08-08 天津亚轩科技有限公司 一种电镀装置
CN108622809A (zh) * 2018-06-23 2018-10-09 东台市富康机械有限公司 隧道吊运机器人
CN108792955A (zh) * 2018-08-03 2018-11-13 上海市机械施工集团有限公司 一种超低空间可变幅门式起重运输拼装设备
DE102019116809A1 (de) * 2019-06-21 2020-12-24 Hubtex Maschinenbau Gmbh & Co. Kg Transportfahrzeug, Verfahren zum Aufnehmen einer Last durch ein Transportfahrzeug und System mit einem Transportfahrzeug und einer Last
WO2023156750A1 (fr) * 2022-02-18 2023-08-24 Safran Landing Systems Portique de levage et procede de montage associe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1209259B (de) * 1962-07-24 1966-01-20 Beteiligungs & Patentverw Gmbh Portalkran
GB1162405A (en) * 1967-08-26 1969-08-27 Mobile Lifting Services Ltd Improvements in or Relating to Mobile Lifting Equipment
WO2007010358A1 (en) * 2005-07-20 2007-01-25 C.V.S. S.P.A. Apparatus for carrying a load

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1209259B (de) * 1962-07-24 1966-01-20 Beteiligungs & Patentverw Gmbh Portalkran
GB1162405A (en) * 1967-08-26 1969-08-27 Mobile Lifting Services Ltd Improvements in or Relating to Mobile Lifting Equipment
WO2007010358A1 (en) * 2005-07-20 2007-01-25 C.V.S. S.P.A. Apparatus for carrying a load

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102190252A (zh) * 2011-07-13 2011-09-21 大连华锐股份有限公司 履带式门式起重机
CN102190252B (zh) * 2011-07-13 2013-04-10 大连华锐重工集团股份有限公司 履带式门式起重机
CN102774747A (zh) * 2012-08-09 2012-11-14 郑州新大方重工科技有限公司 一种通用门式起重机走行大车转向机构
CN107022785B (zh) * 2016-01-29 2018-09-25 天津亚轩科技有限公司 一种电镀装置
CN107022785A (zh) * 2016-01-29 2017-08-08 天津亚轩科技有限公司 一种电镀装置
CN107022786B (zh) * 2016-01-29 2018-09-25 天津亚轩科技有限公司 一种电镀装置
CN107022786A (zh) * 2016-01-29 2017-08-08 天津亚轩科技有限公司 一种新型电镀装置
CN108622809A (zh) * 2018-06-23 2018-10-09 东台市富康机械有限公司 隧道吊运机器人
CN111453626A (zh) * 2018-06-23 2020-07-28 卓中朝 隧道吊运机器人
CN111453626B (zh) * 2018-06-23 2021-07-20 上海勤顺建设工程有限公司 隧道吊运机器人
CN108792955A (zh) * 2018-08-03 2018-11-13 上海市机械施工集团有限公司 一种超低空间可变幅门式起重运输拼装设备
DE102019116809A1 (de) * 2019-06-21 2020-12-24 Hubtex Maschinenbau Gmbh & Co. Kg Transportfahrzeug, Verfahren zum Aufnehmen einer Last durch ein Transportfahrzeug und System mit einem Transportfahrzeug und einer Last
US11919751B2 (en) 2019-06-21 2024-03-05 Hubtex Maschinenbau Gmbh & Co. Kg Transport vehicle, method for receiving a load by means of a transport vehicle, and system comprising a transport vehicle and a load
WO2023156750A1 (fr) * 2022-02-18 2023-08-24 Safran Landing Systems Portique de levage et procede de montage associe
FR3132907A1 (fr) * 2022-02-18 2023-08-25 Safran Landing Systems Portique de levage et procede de montage associe

Also Published As

Publication number Publication date
EP1862422A3 (de) 2008-12-17
ITCS20060008A1 (it) 2007-11-30

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