EP1473267B1 - Vorrichtung zum Ballastieren eines Krans - Google Patents

Vorrichtung zum Ballastieren eines Krans Download PDF

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Publication number
EP1473267B1
EP1473267B1 EP04356038A EP04356038A EP1473267B1 EP 1473267 B1 EP1473267 B1 EP 1473267B1 EP 04356038 A EP04356038 A EP 04356038A EP 04356038 A EP04356038 A EP 04356038A EP 1473267 B1 EP1473267 B1 EP 1473267B1
Authority
EP
European Patent Office
Prior art keywords
ballast
gripper
crane according
ballasting device
block
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
EP04356038A
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English (en)
French (fr)
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EP1473267A1 (de
Inventor
Philippe Monteil
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
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 EP1473267A1 publication Critical patent/EP1473267A1/de
Application granted granted Critical
Publication of EP1473267B1 publication Critical patent/EP1473267B1/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
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/74—Counterweights or supports for balancing lifting couples separate from jib

Definitions

  • the present invention relates to the technical field of cranes, in particular tower cranes. More particularly, this invention relates to a device for weighting such a crane with the aid of concrete blocks stackable on a crane base frame, the ballast device combining the ballast blocks and the handling means of the crane. these blocks, allowing the establishment of ballast blocks without manual intervention.
  • the subject of the invention is a crane ballast device, in particular for a tower crane, of the kind in question, that is to say combining stackable ballast blocks on a crane base chassis and a gripper for handling the ballast blocks, the gripper being intended to be connected, in use, to a handling means, this device comprising in a known manner non-permanent connection means by hooking between the gripper and a block of ballast, as well as means for centering stacked ballast blocks, relative to one another, and said device being characterized essentially by the fact that the aforementioned non-permanent connection means comprise two hooks grippers pivotally mounted about horizontal axes, in the end regions of a gripper of the gripper, each gripping hook having, on one side of its pivot axis, a latching nose adapted to cooperate with a transverse axis placed in a corresponding housing of a ballast block, and on the other side of its pivot axis, a rear part attached to a sling by which the gripper is
  • the invention provides a ballasting device which is particularly easy to use, the device comprising hooks mounted on the gripper and no longer on the ballast blocks, and requiring as only manual intervention the unlocking of the hooks before the lifting of the ballast. a block of ballast, while the other movements are controlled by the gravity and the action of the slings on the gripping hooks.
  • the spreader is formed from two parallel bars or sections, secured to one another by providing a longitudinal gap between them, so as to form at both ends of the rudder screeds for the articulation of the two suspension hooks.
  • each gripping hook itself constitutes, or carries, a counterweight, which allows the gripping hooks to automatically release the transverse axes of the ballast block, when it is placed and that the slings are relax.
  • each sling forms, with the longitudinal axis of the corresponding gripping hook, an angle less than 180 °, which ensures the holding in position of the gripping hooks on the transverse axes of the ballast block, under the effect of the weight from this block.
  • each latch of the gripper is a latch pivoted about a horizontal axis carried by the spreader, the latch having a bent shape, with a lower part forming a counterweight, and an upper part forming a locking nose and provided with a ramp, intended to cooperate with a control finger carried by the rear portion of the corresponding gripping hook.
  • the ballast blocks made essentially of concrete, each comprise two metal gripping parts, embedded in the concrete, which each delimit a housing adapted to receive a gripping hook, each metal gripping portion being provided with a transverse axis, passing through the housing which it delimits and provided to cooperate with the attachment nose of a gripping hook engaged in this housing.
  • brackets Under the spreader are advantageously fixed two positioning brackets, provided to cooperate, respectively, with the upper edges of the housing defined by the two gripping portions of a ballast block; these brackets ensure the centering of the gripper on a block of ballast to hang, when the rudder lands on the upper face of the ballast block.
  • the means for centering the stacked ballast blocks, relative to each other comprises on each block of ballast conical centering pins, which protrude above the upper face of the ballast block. and corresponding recesses of flared shape, in particular conical or pyramidal, which open into the lower face of the ballast block.
  • These pins and complementary housing alone ensure the relative longitudinal and transverse positioning of two directly superposed ballast blocks, and they allow to admit certain tolerance deviations in the manufacture and laying of blocks.
  • the centering pins and the corresponding housings belong to metal centering parts, each metal centering portion extending vertically on a side of a metal gripping portion, and being attached thereto to form a single metal insert, embedded in the concrete of the ballast block.
  • the spreader is advantageously provided, at its ends, rings provided to receive a guide rope, usable during handling of a block of ballast, hooked under the rudder, the rope being provided to be held by an operator who stays on the ground.
  • the crane ballast device shown in the drawing, consists of a gripper 2 and ballast blocks 3, the gripper 2 being adapted to the ballast blocks 3.
  • the gripper 2 is represented as a whole in FIGS. 1 and 2, FIG. 3 representing on a larger scale a detail A of this gripper 2.
  • the gripper 2 comprises a spreader 4, consisting of two "U" 5 and 6 parallel profiles, opposed to one another, and secured to one another, a gap 7 being formed between the two sections 5 and 6, over the entire length thereof.
  • the two sections 5 and 6 form two clevises, respectively located at both ends of the spreader 4.
  • the yoke 4 comprises two coaxial holes, formed respectively in the vertical webs of the two sections 5 and 6, and receiving a horizontal hinge pin 10 for a pivoting gripping hook (described below). after).
  • the spreader 4 Towards each end, but behind the coaxial holes receiving the aforementioned hinge pin 10, the spreader 4 comprises two other coaxial holes, formed respectively in the vertical webs of the two sections 5 and 6, and receiving a horizontal hinge axis 11 for a pivoting latch (described below).
  • the spreader 4 is still provided with two horizontal rings, respectively 12 and 13 (not shown in Figure 1 but visible in the following figures).
  • Each ring 12 or 13, welded to the end portions of the two sections 5 and 6, is provided to receive a handling guide rope 14 of a ballast block 3, as shown in FIG. 8.
  • the gripper 2 comprises two gripping hooks, respectively 15 and 16, articulated symmetrically on the horizontal axes 10 carried by the two ends of the spreader 4, each hook 15 or 16 thus passing through the gap 7 formed between the two sections 5 and 6.
  • protection plates 42 extend in the deflection zone of the rear portions 18 of the two gripping hooks 15 and 16, in order to protect the hands of the operator.
  • the gripper 2 also comprises two pivoting latches, respectively 21 and 22, articulated symmetrically on the horizontal axes 11 carried by the spreader 4, with a first latch 21 associated with one of the gripping hooks 15, and a second latch 22 associated with the other hook 16.
  • the gripper 2 comprises two metal slings 27 and 28, which are arranged in "V" reversed. At their lower ends, the two slings 27 and 28 are provided with respective rings 29, for their connection respectively with the rear ends of the two gripping hooks 15 and 16, each ring 29 being traversed by the axis 20 of the associated hook. The respective upper ends of the two slings 27 and 28 are connected to a common ring 30, for the handling of the entire gripper 2. Note that each sling 27 or 28 forms, with the longitudinal axis of the gripping hook 15 or 16 corresponding, an obtuse angle less than 180 °, to ensure a holding force in the locked position of the hooks 15 and 16, when the gripper 2 is raised.
  • the weighting device comprises a particular arrangement of the ballast blocks 3, adapted to the gripper 2 previously described.
  • Each block of ballast 3, made essentially of concrete, has a generally elongated parallelepipedal shape, and it comprises two metal inserts 31 and 32 embedded in the concrete during casting. As shown in particular in Figure 2, the two metal inserts 31 and 32 are arranged symmetrically on the ballast block 3, and each insert 31 or 32 consists of a gripping portion 33 of the ballast block, and a centering portion 34 of the blocks together.
  • the gripping portion 33 is in the form of a flattened chimney, extending over the entire height of the ballast block 3, and traversed, in its upper part, by a transverse axis 35.
  • the centering portion 34 extends vertically, on the outer side of the gripping portion 33, to which it is attached by horizontal bars 36.
  • this centering portion 34 comprises, at its apex, a conically centering pin 37 preferably removable, protruding above the upper face of the ballast block 3.
  • the centering portion 34 forms a housing 38 of conical or pyramidal shape, which opens into the lower face of the block ballast 3 and is provided to receive a centering pin of a lower ballast block.
  • the two metal inserts 31 and 32 have a difference in shape, with respect to their respective housings 38.
  • the centering portion 34 located on the right in the drawing has the general shape of a pyramid with a substantially square base.
  • the other centering portion 34, located on the left, which is also shown in FIG. 13, has the general shape of an elongate rectangular base pyramid in the longitudinal direction of the ballast block 3.
  • the hooking is carried out by bringing, above a ballast block 3, the gripper 2 itself which is suspended by the upper ring 30 to a handling hook (not shown).
  • the two gripping hooks 15 and 16 of the gripper 2 are locked, that is to say retained by means of the respective latches 21 and 22 in their position for which the two hooks 17 are raised, and discarded to the maximum of one another.
  • the locked position of the gripping hooks is in particular illustrated, for the hook 16, in FIG. 3 which shows how this hook 16 is retained, by its finger 19, in the lock 22.
  • the gripper 2 is lowered towards the ballast block 3, and centered on this block 3 by means of the two centering brackets 8 and 9 which are placed at the edge of the housing delimited by the respective gripping portions 33 of the two metal inserts. 31 and 32 - see Figure 4.
  • the ballast block 3 is thus supported by the gripper 2, in a lifting position illustrated in FIG. 7. During the lifting of the ballast block 3, the holding in position of the two gripping hooks 15 and 16 is ensured by the only weight of this block 3, given the angle less than 180 ° formed by each sling 27 or 28 with the longitudinal axis of the hook 15 or 16 corresponding.
  • ballast block 3 raised we then operate the handling of the ballast block 3 raised, for bring it above the like ballast blocks 3 already previously set up and stacked on the base frame 39 of the crane, above which rises the mast 40 of the crane - see Figure 8.
  • the guide ballast block 3 raised and moved is provided by the operator 41 posted on the ground, by means of a rope 14 attached to the spreader 4, more particularly to a terminal ring 13 of the spreader 4.
  • the ballast block 3 is thus presented above the ballast blocks 3 already previously stacked, as shown in FIG. 9, the correct positioning of this ballast block 3 on the other blocks, being ensured by the centering portions 34. More particularly, the conical centering pins 37 belonging to the ballast block 3 previously installed cooperate with the housings 38 of conical or pyramidal shape of the ballast block 3 being laid (FIG. 9 showing these elements just before they cooperate). During this operation, the housing 38 of particular pyramidal shape, elongate rectangular base, can absorb positioning differences between the two ballast blocks 3, while ensuring the proper alignment of the side faces of these two blocks 3.
  • ballast block 3 considered is thus “self-center” on the block 3 immediately below, on the upper face of which it finally comes to support.
  • the gripping hooks 15 and 16 initiate a tilting movement about the pivot axes 10, as indicated by the arrow F3 (for the hook 16) in FIG. 10 .
  • the gripper 2 can then be moved away from the ballast block 3 which has just been laid down, and this gripper 2 can be reused, as described above, for gripping and laying the next block of ballast 3, and thus right now...
  • ballast blocks 3 can thus be stacked either in direct superposition (see FIGS. 9 and 12), or in staggered rows as illustrated in FIG.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Jib Cranes (AREA)

Claims (12)

  1. Vorrichtung zum Ballastieren eines Krans, insbesondere eines Turmdrehkrans, umfassend: Ballastblöcke (3), die auf einem Basisgestell (39) des Krans stapelbar sind, sowie einen Greifer (2) zum Fördern der Ballastblöcke (3), wobei der Greifer (2) so ausgerüstet ist, dass er im Einsatz mit einer Fördervorrichtung verbunden werden kann, wobei diese Vorrichtung Mittel zur zeitweiligen Hakenverbindung zwischen dem Greifer (2) und einem Ballastblock (3) umfasst, sowie Mittel zum Zentrieren der gestapelten Ballastblöcke (3), jeweils einer mit Bezug auf die anderen, dadurch gekennzeichnet, dass die Mittel für die vorgenannte zeitweilige Verbindung zwei gegenüberliegende Greifhaken (15, 16) umfassen, die um horizontale Achsen (10) schwenkbar an den Endbereichen einer Traverse (4) des Greifers (2) montiert sind, wobei jeder Greifhaken (15, 16) auf der einen Seite seiner Schwenkachse (10) eine Hakenspitze (17) hat, die vorgesehen ist, um mit einer Querachse (35) zusammenzuwirken, die in einer entsprechenden Aufnahme (33) eines Ballastblocks (3) sitzt, und auf der anderen Seite seiner Schwenkachse (10) ein hinteres Teil (18) hat, das an einer Schlinge (27, 28) befestigt ist, mit der der Greifer (2) während des Einsatzes am Hubseil aufgehängt ist, und wobei jedem Greifhaken (15, 16) ein Riegel (21, 22) zugeordnet ist, der von der Traverse (4) getragen wird und dazu dient, zeitweilig den entsprechenden Greifhaken (15, 16) in von der Querachse (35) gelöster Stellung zu halten.
  2. Vorrichtung zum Ballastieren eines Krans nach Anspruch 1, dadurch gekennzeichnet, dass die Traverse (4) von zwei parallelen Stäben oder Profilen (5, 6) gebildet wird, die fest miteinander verbunden sind, wobei zwischen ihnen ein kleiner längs verlaufender Zwischenraum (7) angeordnet ist, so dass an den beiden Enden der Traverse (4) Gabeln gebildet werden, die die Gelenkverbindung der zwei Greifhaken (15, 16) aufnehmen.
  3. Vorrichtung zum Ballastieren eines Krans nach Anspruch 2, dadurch gekennzeichnet, dass an den zwei Stäben oder Profilen (5, 6) der Traverse (4) senkrechte Schutzplatten befestigt sind, die den Bereich der Bewegung des hinteren Teils (18) der Greifhaken (15, 16) absichern.
  4. Vorrichtung zum Ballastieren eines Krans nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das hintere Teil (18) jedes Greifhakens (15, 16) selbst ein Gegengewicht bildet oder ein Gegengewicht trägt.
  5. Vorrichtung zum Ballastieren eines Krans nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass jede Schlinge (27, 28) mit der Längsachse des entsprechenden Greifhakens (15, 16) einen Winkel unter 180° bildet.
  6. Vorrichtung zum Ballastieren eines Krans nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass jeder Riegel (21, 22) des Greifers (2) ein Riegel ist, der um eine von der Traverse getragene horizontale Achse (11) schwenkbar montiert ist, wobei der Riegel (21, 22) eine abgewinkelte Form hat mit einem unteren Teil (23), das ein Gegengewicht bildet, und mit einem oberen Teil (24), das einen Verriegelungshaken bildet und mit einer Rampe (24) versehen ist, die die Aufgabe hat, mit einem Steuerfinger (19) zu kooperieren, der vom hinteren Teil des entsprechenden Greifhakens (15, 16) getragen wird.
  7. Vorrichtung zum Ballastieren eines Krans nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass jeder der im wesentlichen aus Beton hergestellten Ballastblöcke (3) zwei im Beton eingegossene Metallteile (33) zum Greifen hat, die jeweils eine Aufnahme abgrenzen, die einen Greifhaken (15,16) teilweise aufnehmen kann, wobei jedes Metallteil (33) zum Greifen mit einer Querachse (35) versehen ist, die die von ihm abgegrenzte Aufnahme durchquert und vorgesehen ist, um mit der Hakenspitze (17) eines Greifhakens (15, 16) zusammenzuwirken, die in diese Aufnahme eingreift.
  8. Vorrichtung zum Ballastieren eines Krans nach Anspruch 7, dadurch gekennzeichnet, dass unter der Traverse (4) zwei Positionierungswinkel (8, 9) befestigt sind, die vorgesehen sind, um jeweils mit den oberen Rändern der Aufnahmen zusammenzuwirken, die von den zwei Metallteilen (33) zum Greifen eines Ballastblocks (3) abgegrenzt werden.
  9. Vorrichtung zum Ballastieren eines Krans nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Mittel zum Zentrieren der gestapelten Ballastblöcke (3), jeweils einer in Bezug auf die anderen, auf jedem Ballastblock (3) konische Zentrierstifte (37) umfassen, die über die Oberseite des Ballastblocks (3) hinausragen, und entsprechende Aufnahmen (38) mit aufgeweiteter Form, insbesondere konisch oder pyramidenförmig, die nach der Unterseite des Ballastblocks (3) hin offen sind.
  10. Vorrichtung zum Ballastieren eines Krans nach Anspruch 9, dadurch gekennzeichnet, dass die eine der Aufnahmen (38) mit aufgeweiteter Form jedes Ballastblocks (3) die allgemeine Form einer Pyramide mit verlängerter rechteckiger Basis hat, die gemäß der Längsrichtung dieses Ballastblocks (3) verläuft.
  11. Vorrichtung zum Ballastieren eines Krans nach der Gesamtheit der Ansprüche 2 bis 9, dadurch gekennzeichnet, dass die Zentrierstifte (37) und die entsprechenden Aufnahmen (38) zu Metallteilen (34) zum Zentrieren gehören, wobei sich jedes Metallteil (34) zum Zentrieren vertikal auf einer Seite eines Metallteils (33) zum Greifen erstreckt und an diesem (bei 36) befestigt ist, um einen einzigen Metall-Einsatz (31, 32) zu bilden, der im Beton des Ballastblocks (3) eingegossen ist.
  12. Vorrichtung zum Ballastieren eines Krans nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die Traverse (4) an ihren Enden mit Ringen (12, 13) versehen ist, die vorgesehen sind, um ein Führungsseil (14) aufzunehmen, das während des Fördervorgangs eines unter der Traverse (4) eingehakten Ballastblocks (3) eingesetzt wird.
EP04356038A 2003-04-30 2004-03-16 Vorrichtung zum Ballastieren eines Krans Expired - Lifetime EP1473267B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0305362A FR2854393B1 (fr) 2003-04-30 2003-04-30 Dispositif de lestage pour grue
FR0305362 2003-04-30

Publications (2)

Publication Number Publication Date
EP1473267A1 EP1473267A1 (de) 2004-11-03
EP1473267B1 true EP1473267B1 (de) 2006-04-26

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EP04356038A Expired - Lifetime EP1473267B1 (de) 2003-04-30 2004-03-16 Vorrichtung zum Ballastieren eines Krans

Country Status (8)

Country Link
US (1) US7093729B2 (de)
EP (1) EP1473267B1 (de)
JP (1) JP2004331396A (de)
KR (1) KR20040094312A (de)
DE (1) DE602004000726T2 (de)
ES (1) ES2264102T3 (de)
FR (1) FR2854393B1 (de)
RU (1) RU2336221C2 (de)

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FR2994168B1 (fr) 2012-07-31 2014-08-29 Manitowoc Crane Group France Procede pour la mise en place et l'enlevement de blocs en beton
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JP6345538B2 (ja) * 2014-08-26 2018-06-20 キャタピラー エス エー アール エル カウンタウエイト装着装置及びこれとカウンタウエイトとの組合せ
BE1023013B1 (fr) * 2015-12-02 2016-11-04 Dufour Sa Contrepoids pour grues et procédé d'empiler des contrepoids pour grues
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DE202016003698U1 (de) * 2016-06-13 2017-09-14 Liebherr-Werk Ehingen Gmbh Mobilkran
CN108584202B (zh) * 2017-12-26 2023-10-17 中车西安车辆有限公司 一种吊架
CN108840221B (zh) * 2018-08-28 2023-09-29 山西航天清华装备有限责任公司 筒弹组合吊具
US10996100B2 (en) * 2019-02-05 2021-05-04 Rail Scale, Inc. Method and apparatus for calibrating rail scales
CN110790160B (zh) * 2019-11-05 2020-09-08 上海兴友工程机械有限公司 用于履带式起重机的后配重结构
CN112320637B (zh) * 2020-11-11 2023-04-07 三一汽车起重机械有限公司 一种吊具结构、平衡重装置以及起重机
CN113307137B (zh) * 2021-06-05 2023-07-18 河北宏光供电器材有限公司 一种坠砣块更换用的辅助工具

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Also Published As

Publication number Publication date
EP1473267A1 (de) 2004-11-03
FR2854393A1 (fr) 2004-11-05
DE602004000726T2 (de) 2007-05-16
DE602004000726D1 (de) 2006-06-01
RU2336221C2 (ru) 2008-10-20
JP2004331396A (ja) 2004-11-25
ES2264102T3 (es) 2006-12-16
US7093729B2 (en) 2006-08-22
KR20040094312A (ko) 2004-11-09
FR2854393B1 (fr) 2005-06-17
US20040256342A1 (en) 2004-12-23
RU2004113257A (ru) 2005-10-20

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