EP0846650B1 - Procédé et dispositif pour le montage des tirants des flèches de grues à tour - Google Patents

Procédé et dispositif pour le montage des tirants des flèches de grues à tour Download PDF

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Publication number
EP0846650B1
EP0846650B1 EP97420224A EP97420224A EP0846650B1 EP 0846650 B1 EP0846650 B1 EP 0846650B1 EP 97420224 A EP97420224 A EP 97420224A EP 97420224 A EP97420224 A EP 97420224A EP 0846650 B1 EP0846650 B1 EP 0846650B1
Authority
EP
European Patent Office
Prior art keywords
mounting
jib
masthead
tie rod
counterjib
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
EP97420224A
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German (de)
English (en)
French (fr)
Other versions
EP0846650A1 (fr
Inventor
Yves Millet
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.)
Manitowoc Crane Group France SAS
Original Assignee
Potain SA
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Filing date
Publication date
Application filed by Potain SA filed Critical Potain SA
Publication of EP0846650A1 publication Critical patent/EP0846650A1/fr
Application granted granted Critical
Publication of EP0846650B1 publication Critical patent/EP0846650B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes

Definitions

  • the present invention relates to a method for mounting of the tower crane jib tie rods, and a device for implementing this method.
  • This invention finds its application in the assembly of tie rods of the distributing arrow and the counter-arrow associated, constituting support for counterweights, cranes to especially high capacity lathe, used on building construction sites and works public.
  • Such tower cranes are generally rotating from the top, and have a fixed height mast adjustable by means of additional mast elements.
  • the distributing boom of such a tower crane usually has a shaped cross section isosceles triangle.
  • the top of the triangular section corresponds to an upper member of the boom, while that the two corners of the base of this section triangular correspond to two lower members, which form a raceway for a carriage load distribution.
  • This distributing arrow is essentially made up of arrow elements successive, aligned and assembled to each other at means of pin axes arranged at the ends respective of the upper chord and the chords of these boom elements.
  • tie rods restraint also referred to hereinafter more simply as "tie rods”, which are each formed of several parts assembled together, end to end, at means of pin axes mounted perpendicular to the vertical median plane of the arrow.
  • the front end of the or of each tie is linked by articulation, also to the by means of a pin axis perpendicular to the median plane of the arrow, at a point on the upper chord of the arrow.
  • the arrow elements are aligned and assembled together on the ground, the tie rods also being assembled by their front ends to the elements of corresponding arrow, these tie rods initially resting on the upper chord, facing the boom foot element. Then the boom is equipped slings for lifting with an auxiliary machine assembly, such as a mobile crane. At the end of lifting, the rear articulation of the boom foot is presented and embossed on the front face of the masthead, designated also as an arrowhead.
  • the arrow being held in position by the mounting machine, makes a reeving on site between the free end of each tie rod and its fixing point at the top of the masthead.
  • the crane lifting winch or of a cable puller, we pull on the free strand of hauling until a pinout can be made the initially free end of the tie on the top of the masthead.
  • the hauling operation is carried out here in height, and requires the intervention of several assemblers operating in difficult and arduous working conditions, especially in case of wind or other bad weather.
  • the brace is assembled in one analogous to that of the distributing arrow, and therefore has the same disadvantages.
  • the craft assembly assistant is immobilized during all this time, this machine is generally rented at a high cost.
  • auxiliary mounting device to raise the boom and its tie rods around the joint arrowhead, until you can perform a pinout between the free end of each tie rod waiting on the arrow foot, on the one hand, and the end a corresponding connecting piece or "strap", in waiting at the top of the masthead, on the other hand.
  • the pinout being carried out, the arrow is still lowered to using the auxiliary lifting device, until the tie rods are aligned and tensioned.
  • German utility model N ° 87.09267 provides a single haul, having only part fixed and mobile part, applied to a jib crane liftable, where the arrow line is active in work, and the hauling is "working".
  • This device therefore does not concern jib cranes distributor, with line of fixed jib tie rods job. So, this is the arrow lifting haul which is used here for the alignment of the tie rods during the mounting. In addition, this hauling has no use for the mounting the jib.
  • German patent application N ° 33.07.892 relates to a low capacity tower crane, in which a single haul serves to raise the arrow and the arrows, not to align the tie rods.
  • British patent N ° 965,025 relates to him also low capacity cranes, in which the hauling is used to raise the mast of the crane, not to align the arrow rods. In addition, it is a hauling which is not pre-existing on the crane.
  • the present invention provides a solution to difficulties previously outlined, providing a method for mounting the tie rods of the crane jibs tower, and a device for implementing this process, which apply to all types of tower cranes but especially high capacity tower cranes, whose arrows are equipped with several tie rods, the process and the proposed device for mounting quickly, easily and securely for the staff.
  • the strap used for mounting the tie rod of the counter-arrow is formed by the front part of this tie, and is thus an "active" ramp.
  • the device according to the invention for setting work of the assembly process defined above includes, in addition to the aforementioned mounting straps, a set of hauling, between a mounting winch ensuring motorization of a mounting cable, a fixed part located successively on the side of the arrow for mounting the pulling from the jib, then from the jib side for mounting the boom tie rod (s), and a movable part located successively on the opposite side, all the elements of the haulage system being carried by the single head of mast, the parts mentioned above being constituted by at least one pulley carried by the mounting strap of the tie rod counter-deflection, and at least one other pulley carried by the mounting strap of the boom tie (s).
  • the device thus comprises a cable circuit closed, made in the factory, with two moving parts which are alternately used. More specifically, the moving part on the jib side is first used, while the moving part on the boom side is immobilized (ex works), for mounting the counter-arrow; then, after mounting the jib, the moving part on the jib side is immobilized, and the moving part is used on the boom side for mounting of the arrow.
  • the motorized mounting cable runs successively, from the assembly winch arranged at inside the base of the masthead, on a first pulley which is arranged at the top of the masthead and whose axis of rotation is perpendicular to the median plane vertical of the arrow and the counter-arrow, on a second pulley mounted on the side of the jib at one end of a lifting beam articulated at the top of the head mast and resting on the mast head, the axis of rotation of the second pulley being parallel to that of the first pulley, on a third pulley mounted on the strap of mounting of the provisionally fixed jib tie rod on the rear face of the mast head, the axis of rotation of the third pulley being orthogonal to that of the second pulley, then on a fourth pulley mounted coaxially with the second pulley by forming a haulage two strands for mounting the tie bar tie rod, and finally on a set of pulleys forming
  • multiple hauling is carried out between a first series of coaxial pulleys arranged at the other end of the lifter articulated at the top of the masthead, pulleys whose common axis of rotation is perpendicular to the vertical median plane of the arrow and the jib, and a second series of pulleys also coaxial arranged at the upper end of the mounting strap of the boom tie rod (s), the common axis of rotation of the latter pulleys being also perpendicular to the vertical median plane of the arrow and counter-arrow.
  • tie rods are interconnected by their last free end element, by means of a sling in constant length cable.
  • the tie rod (s) of the arrow are pinned on the top of the masthead through a pending connecting piece position to receive the free end elements said tie rods.
  • the length of the sling connecting the elements free end of the tie rods is determined in such a way that at the end of assembly, the ends free of all tie rods can be stapled directly on said connecting piece waiting at top of the mast.
  • This pinout can however be facilitated by the addition of articulated links on the free end elements of the tie rods.
  • this is advantageously broached on the masthead by through a twin on standby in position for receive the mounting strap from the tie rod camber.
  • the tower crane shown in Figure 1 includes, in common, a fixed or rolling basic chassis 1, a mast 2 of adjustable height surmounted by a fixed pivot 3 which supports, through a device orientation 4, a rotating pivot 5 itself surmounted a mast head 6.
  • This crane is provided with a boom distributor 7 and a jib 8, located on the side and on the other side of the mast head 6.
  • the jib 8 carries a counterweight 9, and it also supports a lifting winch 10, while the arrow 7 is equipped with a carriage distribution 11 and a winch (not shown) of displacement of this carriage 11, for handling loads on a building site.
  • the jib 8 is hinged, around a horizontal axis 12 perpendicular to the plane vertical median of the arrow 7 and the counter-arrow 8, on the rear face of the mast head 6, at the base of this mast head 6.
  • the jib 8 is held in place substantially horizontal position via a oblique tie 13 linked to the top 14 of the mast head 6.
  • the distributor boom 7 is mounted so articulated, about a perpendicular horizontal axis 15 in the vertical median plane of arrow 7 and of camber 8, on the front face of the mast head 6, the base of this masthead 6.
  • the arrow 7 is maintained in a substantially horizontal position through two oblique tie rods 16 and 17, linked to each other at top 14 of said mast head 6.
  • these two tie rods 16 and 17 are also linked, respectively, at two points spaced from the distributing arrow 7.
  • this distributing arrow 7, of adjustable length includes one foot element 18, two or more common intermediate elements 19, two special intermediate elements 20 and 21 designated as tie rods, and one or more other elements currents 22 constituting the cantilevered end portion of arrow 7.
  • the foot element 18 is articulated around axis 15 at the mast head 6.
  • the two tie rods arrow 16 and 17 are respectively linked to tie rods 20 and 21.
  • the pulling 13 of the jib 8 is formed of several successive parts, here three parts 23, 24 and 25, connected to each other and to the jib 8 respectively by articulation axes 26, 27 and 28, perpendicular to the longitudinal direction of the tie rod 13 and to the plane vertical median of the jib 8.
  • each part 23, 24 or 25 can be formed by two parallel elements, the tie rod 13 thus being a double drawing.
  • the posterior 23 and intermediate 24 of the tie rod 13 are connected to each other and to the jib 8 by axes 26 and 28, and are based on this counterjib 8.
  • the front part 25 of the tie rod 13 is still separate from parts 23 and 24, and it's temporarily mounted against the rear face of the masthead 6.
  • the front part 25 of tie rod 13, also designated as mounting strap consists of two binoculars parallel 29 joined together by a lifter 30 provided a pulley 31.
  • the upper ends of the binoculars 29 each form a yoke 32 receiving a horizontal axis 33 initially stapled on a support 34 secured to the rear face of the mast head 6.
  • the ends lower 35 also in the shape of a yoke, binoculars 29 rest on standby on another support 36 integral from the rear face of the mast head 6, the support 36 also receiving, temporarily, axis 27 used to connect part 25 of tie rod 13 to all the others parts 23, 24 of the same tie 13.
  • both tie rods 16 and 17 of the distributing arrow 7 are formed each of several successive parts (not identified individually) of lengths adapted to those of elements of arrow 7.
  • the successive parts of arrow rods 16 and 17 are interconnected by hinge pins (not detailed) mounted perpendicular to the longitudinal directions of respective tie rods, as well as in the vertical median plane of the arrow 7.
  • the two tie rods 16 and 17 are arranged one above each other, and aligned above the elements of arrow 7, the tie rods 16 and 17 being linked by their front ends to the respective tie-rods 20 and 21. Furthermore, the free end elements respective 37 and 38 of the two tie rods 16 and 17 are connected between them by a cable sling 39 in length constant, visible in Figures 11 and following.
  • the end part 38 of the tie rod 17 carries, at its free end, an articulated link 40 used to couple this tie 17 with the top 14 of the mast head 6.
  • the end part 37 of the tie rod 16 carries also, at its free end, an articulated link 41 used to couple this tie rod 16 with the top 14 of the masthead 6.
  • This part 37 of the tie rod 16 comprises at in addition, in its upper zone, a bore 42 of axis horizontal intended to receive a pin axis 43 of a mounting strap 44, fixed in standby on the front face of the mast head 6 by means of a connecting rod 45.
  • the mounting strap 44 carries a series of pulleys 46 coaxial, whose common axis of rotation is perpendicular to the vertical median plane of the arrow 7.
  • the mast head 6 is equipped with a reeving set 47 used for mounting of tie rod 13 of jib 8 and tie rods 16 and 17 of arrow 7.
  • the hauling set 47 includes an auxiliary mounting winch 48, installed at inside the mast head 6 towards the base thereof, and ensuring the motorization of a mounting cable 49.
  • the mounting cable 49 travels successively: on a first pulley 50, arranged at the top 14 of the mast head 6 directly above the winch 48, the axis of rotation 51 of the pulley 50 being horizontal and perpendicular to the vertical median plane of the arrow 7 and the counter-arrow 8; on a second pulley 52 mounted on the side of the jib 8, one end of a spreader 53 articulated around an axis horizontal 54 on the top 14 of the mast head 6, the spreader 54 bearing at 55, on the side of the arrow 7, at the top 14 of the mast head 6, the axis of rotation 56 of the second pulley 52 being parallel to the axis of rotation 51 of the first pulley 50; on the pulley 31 mentioned above, carried by part 25 of tie rod 13 of the counterjib 8, the axis of rotation 57 of this third pulley 31 being orthogonal to that 56 of the second pulley 52; on a fourth pulley 58 mounted coaxially to the second pulley
  • a two-strand reeving 59 is formed by the mounting cable 49 between the free end of tie rod 13 of the jib 8 and the top 14 of the masthead 6, and a haul multiple 60 is formed by the same cable 49 between the mounting strap 44 and the mast head 6.
  • the free end 63 of the mounting cable 49 this is attached at a fixed point, located on the axis of rotation 62 pulleys 61.
  • the elements of the jib 8 are aligned and assembled together on the ground, parts 23 and 24 of the tie rod 13 of this luff 8 being pending.
  • ballast blocks belonging to counterweight 9 are possibly installed on the jib 8, to form a partial ballast necessary following the assembly operations.
  • the multiple hauling 60 is tensioned by actuating the winch 48, so that the tie rod 16 is raised, and leads with him up the other pulling 17, thanks to the connection made by the cable sling 39.
  • tie rod assembly operations 13, 16 and 17 are carried out without having to make hairs on place, especially in height, only being performed in height of simple broaching operations.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Automatic Assembly (AREA)
EP97420224A 1996-12-03 1997-12-02 Procédé et dispositif pour le montage des tirants des flèches de grues à tour Expired - Lifetime EP0846650B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9615114 1996-12-03
FR9615114A FR2756551B1 (fr) 1996-12-03 1996-12-03 Procede et dispositif pour le montage des tirants des fleches de grues a tour

Publications (2)

Publication Number Publication Date
EP0846650A1 EP0846650A1 (fr) 1998-06-10
EP0846650B1 true EP0846650B1 (fr) 2002-08-14

Family

ID=9498484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97420224A Expired - Lifetime EP0846650B1 (fr) 1996-12-03 1997-12-02 Procédé et dispositif pour le montage des tirants des flèches de grues à tour

Country Status (7)

Country Link
EP (1) EP0846650B1 (ja)
JP (1) JPH10218563A (ja)
KR (1) KR100493248B1 (ja)
DE (1) DE69714690T2 (ja)
ES (1) ES2180909T3 (ja)
FR (1) FR2756551B1 (ja)
RU (1) RU2200699C2 (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2788758B1 (fr) 1999-01-27 2001-02-23 Potain Sa Procede et dispositif pour le montage de la tete de mat des grues a tour
ITPR20060033A1 (it) * 2006-04-05 2007-10-06 Tgm Srl Gru e suo metodo di assemblaggio.
CN101979308B (zh) * 2010-10-14 2012-02-01 长沙中联重工科技发展股份有限公司 塔式起重机及其平衡臂拉杆结构及该结构的安装方法
CN102491199B (zh) * 2011-12-06 2014-04-02 中联重科股份有限公司 塔式起重机及其平衡臂
CN102616678B (zh) * 2012-04-13 2014-01-15 三一重工股份有限公司 塔机斜拉装置和塔机
CN102992206B (zh) * 2012-12-20 2015-04-22 中联重科股份有限公司 一种动臂塔机变幅拉杆的安装方法
CN103303808A (zh) * 2013-07-01 2013-09-18 张家港市天运建筑机械有限公司 塔机
CN105565190B (zh) * 2016-02-29 2017-06-20 芜湖合建路桥机械有限公司 一种塔式起重机
CN105565189B (zh) * 2016-02-29 2017-09-26 芜湖合建路桥机械有限公司 一种结构坚固型塔式起重机
CN105668435B (zh) * 2016-02-29 2017-05-31 芜湖合建路桥机械有限公司 一种运动稳定型塔式起重机
CN109516390B (zh) * 2018-12-29 2024-03-08 浙江省特种设备科学研究院 一种便于人力搬运安装的平头塔式起重机以及现场安装方法
DE102019131914B4 (de) * 2019-11-26 2023-08-03 Liebherr-Werk Ehingen Gmbh Kran mit wippbarer Auslegerverlängerung
JP2022066822A (ja) * 2020-10-19 2022-05-02 コベルコ建機株式会社 クレーン、クレーンの組立方法及び分解方法
CN114589261B (zh) * 2022-04-19 2023-10-20 中国航发动力股份有限公司 一种重型拉弯机夹头重量平衡装置及其使用方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB965025A (en) * 1961-07-31 1964-07-29 Potain & Cie Ets F Improvements in or relating to foldable tower cranes
DE3307892C2 (de) * 1983-03-05 1986-09-11 Pekazett Baumaschinen GmbH, 6660 Zweibrücken Turmdrehkran mit Ausleger und Gegenausleger
DE8709267U1 (de) * 1987-07-04 1987-08-20 Man Ghh Logistics Gmbh, 74076 Heilbronn Als Transport- und Montageeinheit ausgebildete Turmspitze eines oben drehenden Baukrans
FR2706882B1 (ja) * 1993-06-22 1995-08-11 Potain Sa

Also Published As

Publication number Publication date
KR100493248B1 (ko) 2005-09-06
DE69714690D1 (de) 2002-09-19
DE69714690T2 (de) 2003-04-03
KR19980063747A (ko) 1998-10-07
FR2756551A1 (fr) 1998-06-05
ES2180909T3 (es) 2003-02-16
JPH10218563A (ja) 1998-08-18
RU2200699C2 (ru) 2003-03-20
EP0846650A1 (fr) 1998-06-10
FR2756551B1 (fr) 1999-01-15

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