EP1013601B1 - Verbindung zwischen Gelenk und Turm eines Turmdrehkrans - Google Patents

Verbindung zwischen Gelenk und Turm eines Turmdrehkrans Download PDF

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Publication number
EP1013601B1
EP1013601B1 EP99420241A EP99420241A EP1013601B1 EP 1013601 B1 EP1013601 B1 EP 1013601B1 EP 99420241 A EP99420241 A EP 99420241A EP 99420241 A EP99420241 A EP 99420241A EP 1013601 B1 EP1013601 B1 EP 1013601B1
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EP
European Patent Office
Prior art keywords
pivot
mast
fishplates
mast element
fishplate
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
EP99420241A
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English (en)
French (fr)
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EP1013601A1 (de
Inventor
Yves Millet
Michel Lissandre
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
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 Potain SA filed Critical Potain SA
Publication of EP1013601A1 publication Critical patent/EP1013601A1/de
Application granted granted Critical
Publication of EP1013601B1 publication Critical patent/EP1013601B1/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
    • 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
    • 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
    • B66C23/84—Slewing gear
    • 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
    • B66C23/28—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 constructed to operate at successively higher levels
    • B66C23/283—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 constructed to operate at successively higher levels with frameworks composed of assembled elements
    • B66C23/286—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 constructed to operate at successively higher levels with frameworks composed of assembled elements with locking devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/33—Transverse rod to spaced plate surfaces
    • Y10T403/335—Retainer utilizes or abuts plural plates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/75—Joints and connections having a joining piece extending through aligned openings in plural members

Definitions

  • the present invention relates, in general, to the industrial field of tower cranes and more particularly it concerns a connecting device between pivot and mast for tower cranes.
  • These measures ensures the dismountable assembly between, on the one hand, the top of a mast of tower crane, consisting of structural steel elements superimposed square section, and on the other hand, a fixed pivot whose section horizontal envelope is generally square in shape and used for and the orientation of the rotating upper part of the crane, comprising especially the arrow.
  • the link device object of the invention is suitable for assembling an envelope section pivot square having a given length side, for example 2.5 meters, with a square section framing member having a length side out any higher, for example greater than 2.5 meters.
  • connection between the pivot fixed and the top of the mast, in a tower crane is provided by means of splicing, similar to the means used for the assembly removable between the mast elements of the same crane.
  • tower crane mast elements with vertical corner members (or uprights) of round section, provided with their lower end of tenons and at their upper end of clevises corresponding, removable connecting pins joining the tenons and the screeds.
  • the connection of the pivot to the upper element of the mast is done at using the feet of this pivot, of identical construction to the means provided for in the base of the mast elements.
  • Such an embodiment is particularly described in Chinese Utility Model No. 94247749.9 in the name of the Applicant, filed on December 22, 1994 and issued October 29, 1995 under the N ° 222090.
  • the tenons and clevises providing the connections between elements are oriented at 45 °, with respect to the adjacent faces of these elements, and thus extend outside the square base section said elements.
  • pivots provided with means of splicing adapted to mast elements whose corner members are constituted by corner profiles.
  • Such a device, applied to the assembly of a pivot implies that for a pivot whose square section overall has side of 2.5 meters, the mast can not have a square section of upper side 2.5 meters.
  • connection between the fixed pivot and the element the upper mast is made by four identical splints, located at each angle of the pivot, in the plane of the diagonals of the horizontal section square of the pivot.
  • the overall dimension of the pivot splints is included in within the maximum size allowed for ordinary road transport or for container transport of the "platform" type, ie 2.5 meters.
  • the ribs of the mast element are located inside the volume defined by the lateral faces of this element, the pivot can be assembled to a mast element whose horizontal section is a square of upper side 2.5 meters.
  • Each splint of the device, object of the invention constitutes, from the mechanical point of view, a connection with neutral fibers off-center, transmitting the forces between the pivot whose side of the section is equal for example to 2.5 meters, and the mast whose side of the section is greater than 2.5 meters.
  • each splint of the pivot is fixed by welding under a corner area of the horizontal plate upper, generally square, pivot.
  • each pivot splint is also attached by welding to adjacent areas of vertical reinforcements, located on all four sides of the pivot, under its plate upper, and connected to the shell of said pivot.
  • the pivot comprises, at each of its four angles, a single splice located in the vertical plane passing through the diagonal of the square section of the pivot, while are attached, on the upper part of each corner frame or mast element upright, two sides parallel symmetrical with respect to the vertical plane passing through the diagonal of the square horizontal section of the mast element, the two sides forming a clevis in which the corresponding splint of the pivot is inserted.
  • two superposed holes are pierced in the splints of the pivot, as well as in the splints of the element mast, for the implementation, at each of the four angles, of two axes superimposed link.
  • the holes drilled in the splints of the pivot, likewise the other holes drilled in the ribs of the mast element are preferably provided with matting cores, intended to increase the surface area contact between these fishplates and the linkage that passes through them, and therefore to to reduce the pressure of matting.
  • a platinum horizontal is welded to the top end of each chord angle or amount of the mast element, the upper horizontal plate of the pivot coming in correspondence, by each of its corner zones, with the corresponding stage.
  • the top plate of the pivot may carry, in each corner zone, at least one peg of centering down, while each platinum of the mast element is pierced with at least one hole, capable of receiving a centering pin corresponding pivot.
  • each plate of the mast element has a "U" shape, comprising two branches pointing inward of the square horizontal section of the mast element, each branch being pierced with a hole, and comprising a central cutout provided for the passage of the corresponding splint of the pivot, the upper plate of the pivot bearing, in each corner zone, two centering pins arranged symmetrically on both sides of the splint and intended to be introduced into the two holes of the plate corresponding.
  • reference numeral 1 designates as a whole the pivot stationary (also shown only in FIG. 2), whereas the reference 2 designates as a whole, the upper element of the mast of a tower crane.
  • the pivot 1, used to support and the orientation of the part rotating upper with boom (not shown) of the crane, has a horizontal section of square general shape.
  • This pivot 1 has a circular central opening 3, delimited by the span of a crown 4.
  • the upper part of the pivot 1 is formed by a square plate 5, interrupted by the central opening 3 and having four angles cut to 45 °, as indicated in 6.
  • the pivot 1 On its four sides, under the top plate 5, the pivot 1 further comprises reinforcements 7 located in planes vertical and connected to a ferrule 31.
  • the whole of the pivot 1 falls within a square horizontal section envelope, each side of which has a length designated by A, equal for example to 2.5 meters, corresponding at the side of the square plate 5 (here excluding cut corners) 6).
  • the mast element 2 also having a horizontal section generally square in shape, but with a larger side than that of the pivot 1, is a framing member that includes four corner chords vertical or upright 8, joined together by braces 9 and by crosspieces 10 on the four lateral faces of the element 2.
  • the uprights 8 and the crosspieces 9 are section sections round.
  • the connecting device comprising means identical to the four angles of the pivot 1 on the one hand, and of the upper part of the mast element 2, on the other hand, the following will be described below. means provided for at one of these four angles, with particular reference to FIGS. 3 to 7 which represent the detail of a corner zone, both for the pivot 1 only for the mast element 2.
  • pivot 1 Considering first the pivot 1 (see Figures 2 and 3), it is provided at each angle a splint 11 forming tenon, located in a plane vertical passing through a diagonal D of the square top plate 5.
  • the splint 11 is welded under this plate 5, and is also welded to adjacent areas of the vertical reinforcements 7 and thus fits between these reinforcements 7.
  • the splint 11 is pierced with two superimposed holes 12 and 13, the geometric axes of these holes being horizontal and parallel. Kernels annular matting 14 and 15 are welded on both sides of the splice 11, respectively around the two holes 12 and 13.
  • each splint 11 The position of each splint 11, and its dimensions horizontal, are determined so that this splint 11 fits inside the square section envelope, previously defined.
  • Two centering pins 16 and 17 are still welded in each corner region of the upper plate 5 of the pivot 1; the two pieces 16 and 17, arranged symmetrically on either side of the splint 11, are oriented vertically and directed downwards.
  • two parallel splints 18 and 19 forming together a clevis 20 are planned.
  • the two fishplates 18 and 19 are welded, in parallel vertical planes slightly spaced, on the upper part of the amount 8 of round section. These two fishplates 18 and 19 are thus placed on the inside of the upright 8, and also by therefore, within the volume delimited by the four lateral faces of the mast element 2 (faces in which the braces 9 and sleepers 10).
  • the plane of symmetry of the two fishplates 18 and 19 merges with the vertical plane passing through the diagonal D 'of the horizontal section square of the mast element 2.
  • Each splint 18 or 19 of the mast element 2 is pierced with two superimposed holes 21 and 22, the geometric axes of these holes being horizontal and parallel, and the vertical spacing of the axes of the two holes 21 and 22 of a splint 18 or 19 being equal to the vertical spacing of two holes 12 and 13 of a splice 11 of the pivot 1.
  • Matting cores rings 23 and 24 are welded on the outer faces of the ribs 18 and 19 respectively around the two holes 21 and 22.
  • each amount 8 of the element of mast 2 is still welded a plate 25 in shape of "U", whose two branches are directed towards the interior of the square horizontal section of the mast element 2, parallel to the diagonal of this section.
  • a hole, respectively 26 or 27, the spacing of the two holes 26 and 27 corresponding to that of the two centering pins 16 and 17 placed at an angle of the pivot 1.
  • the central cutout 28 of the plate 25, resulting from its conformation in "U" is located in correspondence with the free space arranged between the two fishplates 18 and 19, located under this plate 25.
  • pivot 1 assembly on the mast element 2.
  • the pivot 1 is brought over the mast element 2, matching the four angles of the pivot 1 with the vertices of the four corner members 8 of the mast element 2.
  • the pivot 1 is lowered, so that its four splints 11 engage, respectively, in the four clevises 10 of the mast element 2, the central cutout 28 of each plate 25 allowing the free passage of the corresponding splint 11 of the pivot 1.
  • each connecting pin 29 or 30 is advantageously a long cone axis, equipped with a locking pin.

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

Claims (9)

  1. Vorrichtung zur Verbindung von Drehkranz und Mastaufbau für Turnadrehkräne, wobei die Vorrichtung eine Mastspitze für Turmdrehkräne und einen feststehenden Drehkranz (1) umfasst und die demontierbare Verbindung gewährleistet zwischen einerseits der Mastspitze des Turmdrehkrans, die aus Mastelementen (2) mit quadratischem Horizontalquerschnitt zusammengesetzt ist, und andererseits dem feststehenden Drehkranz (1), dessen Außenquerschnitt eine allgemein quadratische Form aufweist und der als Auflager und zur Ausrichtung des oberen drehenden Teils des Krans dient, der insbesondere den Ausleger umfasst, dadurch gekennzeichnet, dass die Vorrichtung in Kombination umfasst:
    an jeder der vier Ecken des Drehkranzes (1) mindestens eine Lasche (11), die in einer vertikalen Ebene befestigt ist, welche durch eine Diagonale (D) des quadratischen horizontalen Querschnitts des Drehkranzes (1) hindurchläuft oder parallel zu dieser Diagonale (D) verläuft, wobei jede Lasche (11) mit mindestens einem Loch (12, 13) mit horizontaler geometrischer Achse versehen ist, und wobei der Laschensatz (11) des Drehkranzes sich in die für den Transport dieses Drehkranzes (1) zulässigen Abmessungen einfügt.
    an jeder der vier Ecken der Spitze des oberen Mastelements (2) mindestens eine andere Lasche (18, 19), die am oberen Bereich einer Gitterecke oder Strebe (8) dieses Mastelements (2) auf der Innenseite der Strebe (8) befestigt ist, und zwar in einer vertikalen Ebene, die durch eine Diagonale (D') des quadratischen horizontalen Querschnitts des Mastelements (2) hindurchläuft oder parallel zur dieser Diagonale (D') verläuft, wobei jede Lasche (18, 19) mindestens ein Loch (21, 22) mit horizontaler geometrischer Achse aufweist, und wobei der Laschensatz (18, 19) des Mastelements (2) innerhalb des von den vier Seitenflächen (9, 10) des Mastelements (2) begrenzten Volumens liegt, und
    herausnehmbare horizontale Verbindungsbolzen (29, 30), die vorgesehen sind, um quer durch die Löcher (12, 13) der Laschen (11) des Drehkranzes (1) und durch die Löcher (21, 22) der Laschen (18, 19) des Mastelements (2) gesteckt zu werden, wobei die Löcher in jeder der vier Ecken gegeneinander liegen, wenn der Drehkranz (1) auf die Spitze des Mastelements (2) gesetzt wird.
  2. Vorrichtung zur Verbindung von Drehkranz und Mastaufbau nach Anspruch 1, dadurch gekennzeichnet, dass jede Lasche (11) des Drehkranzes (1) unter einer Eck-Zone der allgemein quadratischen oberen horizontalen Platte (5) des Drehkranzes (1) durch Schweissen befestigt ist.
  3. Vorrichtung zur Verbindung von Drehkranz und Mastaufbau nach Anspruch 2, dadurch gekennzeichnet, dass jede Lasche (11) des Drehkranzes (1) an den benachbarten Bereichen von vertikalen Verstärkungselementen (7) ebenfalls durch Schweissen befestigt ist, die sich an den vier Seiten des Drehkranzes (1) unter seiner oberen Platte (5) befinden und mit dem Halsring (31) des Drehkranzes (1) verbunden sind.
  4. Vorrichtung zur Verbindung von Drehkranz und Mastaufbau nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Drehkranz (1) an jeder seiner vier Ecken eine einzige Lasche (11) hat, die auf der vertikalen Ebene liegt, die durch die Diagonale (D) des quadratischen horizontalen Querschnitts des Drehkranzes (1) hindurchläuft, während im oberen Bereich jeder Gitterecke oder Strebe (8) des Mastelements (2) zwei parallele Laschen (18, 19) befestigt sind, die bezogen auf die vertikale Ebene, die durch die Diagonale (D') des quadratischen horizontalen Querschnitts des Mastelements (2) hindurchläuft, symmetrisch liegen, wobei die zwei Laschen (18, 19) zusammen ein Gabelstück (20) bilden, in das die entsprechende Lasche (11) des Drehkranzes (1) hineingleitet.
  5. Vorrichtung zur Verbindung von Drehkranz und Mastaufbau nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass zwei übereinander liegende Löcher (12, 13; 21, 22) in die Laschen (11) des Drehkranzes (1) sowie in die Laschen (18, 19) des Mastelements (2) gebohrt sind, um an jeder der vier Ecken zwei übereinander liegende Verbindungsbolzen (29, 30) einzustecken.
  6. Vorrichtung zur Verbindung von Drehkranz und Mastaufbau nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Löcher (12, 13), die in die Laschen (11) des Drehkranzes (1) gebohrt sind, wie auch die anderen Löcher (21, 22), die in die Laschen (18, 19) des Mastelements (2) gebohrt sind, mit Randringen (14, 15; 23, 24) versehen sind.
  7. Vorrichtung zur Verbindung von Drehkranz und Mastaufbau nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass eine horizontale Auflageplatte (25) auf das obere Ende jeder Gitterecke oder Strebe (8) des Mastelements (2) geschweisst ist, wobei die obere horizontale Platte (5) des Drehkranzes (1) mit jeder ihrer Eck-Zonen mit der entsprechenden Auflageplatte (25) in Deckung kommt.
  8. Vorrichtung zur Verbindung von Drehkranz und Mastaufbau nach Anspruch 7, dadurch gekennzeichnet, dass die obere Platte (5) des Drehkranzes (1) in jeder Eck-Zone mindestens einen nach unten gerichteten Zentrierstift (16, 17) hat, während jede Auflageplatte (25) des Mastelements (2) mindestens ein Loch (26, 27) aufweist, das einen entsprechenden Zentrierstift (16, 17) des Drehkranzes (1) aufnehmen kann.
  9. Vorrichtung zur Verbindung von Drehkranz und Mastaufbau nach der Gesamtheit der Ansprüche 4 bis 8, dadurch gekennzeichnet, dass jede Auflageplatte (25) des Mastelements (2) U-förmig ist und zwei nach dem Inneren des quadratischen horizontalen Querschnitts des Mastelements (2) gerichtete Schenkel aufweist, wobei jeder Schenkel mit einem Loch (26, 27) versehen ist und einen zentralen Ausschnitt (28) hat, der für das Hindurchführen der entsprechenden Lasche (11) des Drehkranzes (1) vorgesehen ist, und wobei die obere Platte (5) des Drehkranzes (1) in jeder Eck-Zone zwei Zentrierstifte (16, 17) hat, die symmetrisch zu beiden Seiten der Lasche (11) angeordnet sind und dazu dienen, in die zwei Löcher (26, 27) der entsprechenden Auflageplatte (25) hineinzugleiten.
EP99420241A 1998-12-21 1999-12-13 Verbindung zwischen Gelenk und Turm eines Turmdrehkrans Expired - Lifetime EP1013601B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9816390 1998-12-21
FR9816390A FR2787431B1 (fr) 1998-12-21 1998-12-21 Dispositif de liaison entre pivot et mature pour grues a tour

Publications (2)

Publication Number Publication Date
EP1013601A1 EP1013601A1 (de) 2000-06-28
EP1013601B1 true EP1013601B1 (de) 2005-09-28

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EP99420241A Expired - Lifetime EP1013601B1 (de) 1998-12-21 1999-12-13 Verbindung zwischen Gelenk und Turm eines Turmdrehkrans

Country Status (8)

Country Link
US (1) US6296419B1 (de)
EP (1) EP1013601B1 (de)
JP (1) JP2000211885A (de)
KR (1) KR100658032B1 (de)
DE (1) DE69927468T2 (de)
ES (1) ES2248972T3 (de)
FR (1) FR2787431B1 (de)
RU (1) RU2244673C2 (de)

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CN103204441A (zh) * 2012-12-10 2013-07-17 浙江虎霸建设机械有限公司 塔式起重机回转塔身和回转上支座连接结构
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Also Published As

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ES2248972T3 (es) 2006-03-16
KR20000048283A (ko) 2000-07-25
FR2787431A1 (fr) 2000-06-23
US6296419B1 (en) 2001-10-02
RU2244673C2 (ru) 2005-01-20
EP1013601A1 (de) 2000-06-28
DE69927468D1 (de) 2006-02-09
FR2787431B1 (fr) 2001-01-26
KR100658032B1 (ko) 2006-12-15
JP2000211885A (ja) 2000-08-02
DE69927468T2 (de) 2006-06-22

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