EP2018341B1 - Grue de levage mobile à fixation améliorant le levage - Google Patents

Grue de levage mobile à fixation améliorant le levage Download PDF

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Publication number
EP2018341B1
EP2018341B1 EP07762113.4A EP07762113A EP2018341B1 EP 2018341 B1 EP2018341 B1 EP 2018341B1 EP 07762113 A EP07762113 A EP 07762113A EP 2018341 B1 EP2018341 B1 EP 2018341B1
Authority
EP
European Patent Office
Prior art keywords
unit
boom
crane
counterweight
ground engaging
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.)
Active
Application number
EP07762113.4A
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German (de)
English (en)
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EP2018341A4 (fr
EP2018341A2 (fr
Inventor
David J. Pech
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 Companies LLC
Original Assignee
Manitowoc Crane Companies LLC
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.)
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Publication date
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Application filed by Manitowoc Crane Companies LLC filed Critical Manitowoc Crane Companies LLC
Publication of EP2018341A2 publication Critical patent/EP2018341A2/fr
Publication of EP2018341A4 publication Critical patent/EP2018341A4/fr
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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
    • 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
    • B66C23/36—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 mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • 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

Definitions

  • the present application relates to lift cranes, and particularly to mobile lift cranes having attachments to increase the lift capacity of the crane.
  • Enhancing the lift capacities of mobile lift cranes has been the subject of many improvements in the art of lift cranes over the years. Even with these improvements, there is still a need for further improvements, especially where the particular load to be lifted is very heavy, and other constraints associated with the load come into play, such as the need for the crane to be able to move over the ground while lifting the load.
  • US 4, 537,317 discloses a heavy duty travel crane with two power driven mobile units each with an upper works pivotally supported by lower works and interconnected by a spreader link that may support a stack of counterweight.
  • DE 1264010B discloses a mobile lift crane comprising a central crane unit, a boom unit and a counterweight unit.
  • the present invention provides a mobile lift crane as set out in claim 1.
  • a mobile lift crane has been invented which is capable of making very heavy lifts and still being mobile while lifting the load.
  • the invention is a mobile lift crane comprising a central crane unit having a carbody, moveable ground engaging members and a rotating bed mounted to the ground engaging members with a rotatable connection such that the rotating bed can swing with respect to the ground engaging members; a boom unit having a support member, at least one moveable ground engaging member, and a boom pivotally mounted on the support member; a counterweight unit having counterweight on a support member; and rigging connecting the boom and counterweight unit such that a load lifted by the boom can be counterbalanced by the counterweight.
  • the boom unit and counterweight unit are connected to the central crane unit by structural members that carry compressive loads and maintain the boom unit, the rotating bed and the counterweight unit in lateral alignment with each other, but allow relative vertical movement between the boom unit, the rotating bed and the counterweight unit.
  • a main mast is pivotally mounted on the boom unit.
  • a mobile lift crane comprising a counterweight unit having a support member, counterweight, and at least two moveable ground engaging members, the support member being mounted to the ground engaging members with a rotatable connection such that the support member can swing with respect to the ground engaging members about a swing axis; a boom unit having a support member, at least two moveable ground engaging members, a boom pivotally mounted on the support member, and a main mast pivotally mounted on the support member; a structural member between the boom unit and the counterweight unit that can carry compressive loads and maintain the boom unit and the counterweight unit in lateral alignment with each other, but allow relative vertical movement between the boom unit and the counterweight unit; and rigging connecting the boom, mast and counterweight unit such that a load lifted by the boom can be counterbalanced by the counterweight.
  • the ground engaging members of the boom unit can be rotated relative to the boom unit support member such that the boom unit i) can travel in an arc around the swing axis and ii) travel in direction in line with the structural member
  • the crane with a short boom and short radii will be able to lift approximately 2,000 metric ton.
  • the capacity is approximately 800 metric ton. Even with the ability to lift these large loads, the crane is still mobile.
  • the mobile lift crane 10 is made from three main units: a central crane unit 20, a boom unit 40 and a counterweight unit 60.
  • the boom unit 40 and counterweight unit 60 are connected to the central crane unit 20 by structural members 82 and 84.
  • the boom unit 40 and its structural member 82 are similar to a lift enhancing attachment that has been sold under the trademark "X-Tender” by Manitowoc Cranes of Manitowoc, Wisconsin.
  • the counterweight unit 60 and its structural member 84 are similar to another lift enhancing attachment that has been sold under the trademark "MAX-ER” by Manitowoc Cranes.
  • the central crane unit 20 includes a carbody 22, a rotating bed 23 and moveable ground engaging members in the form of crawlers 24.
  • the rotating bed 23 is mounted to the carbody 22 with a rotatable connection, which may be rollers running on a roller path or a slewing ring, such that the rotating bed 23 can swing about a vertical axis with respect to the ground engaging members 24.
  • the ground engaging members on the central crane unit comprise at least two crawlers.
  • the central crane unit further includes a secondary mast 26 pivotally connected to the rotating bed 23. This mast is used primarily during set up to raise the main mast.
  • the central crane unit 20 also includes other elements commonly found on a mobile lift crane, such as a live mast 28, back stops 30 and an operator's cab 32.
  • the boom unit 40 includes a support member 42 and at least one moveable ground engaging member.
  • the ground engaging member on the boom unit will typically comprise at least two crawlers.
  • the boom unit has four moveable ground engaging members in the form of crawlers 44, in two sets of two crawlers each.
  • crawlers or in this case, each set of crawlers
  • Each of crawlers (or in this case, each set of crawlers) on the boom unit can be rotated about a vertical axis so that the boom unit can travel in both i) an arc around the axis of the rotatable swing connection of the central crane unit 20 (as shown in Figures 2 and 3 ) and ii) a lateral direction corresponding to a linear direction of travel of the central crane unit (as shown in Figure 1 ).
  • the boom unit also includes a boom 46 pivotally mounted on the support member 42, and a main mast 48 pivotally mounted on the support member 42.
  • the boom 46 may comprises a main boom and a luffing jib 50 pivotally mounted to the top of the main boom.
  • struts 51 and 53 are also used.
  • the boom may be made from two independent lattice structures that are joined together at both their tops and bottoms by the pivotal support mechanism of the support member 42 and the luffing jib support on the top of the main boom.
  • the counterweight unit 60 includes a counterweight (which may be in the form of two stacks 62 and 64 of individual counterweight members as shown) on a support member 66.
  • the counterweight unit 60 further includes moveable ground engaging members in the form of multiple wheels 68.
  • a second counterweight unit 61 designed for free-hanging use, is also included.
  • the ground engaging members on the counterweight unit can be rotated about a vertical axis so that the counterweight unit can travel in both i) an arc around the axis of the rotatable swing connection of the central crane unit and ii) a lateral direction corresponding to a linear direction of travel of the central crane unit.
  • the counterweight unit 61 may include a hydraulic cylinder (not shown) connected between the support member and the back hitch straps 54 that can be retracted to change the bearing of the counterweight from the ground to the back hitch straps as a load is lifted and counterweight is needed.
  • a hydraulic cylinder (not shown) connected between the support member and the back hitch straps 54 that can be retracted to change the bearing of the counterweight from the ground to the back hitch straps as a load is lifted and counterweight is needed.
  • the crane 10 also includes rigging connecting the boom 46, main mast 48 and counterweight unit 60 such that a load lifted by the boom 46 can be counterbalanced by the counterweight.
  • the rigging includes boom hoist rigging 52 between the main mast 48 and the boom 46, allowing the boom angle with respect to the ground to be changed.
  • the rigging also includes the back hitch straps 54.
  • the back hitch straps in the embodiment shown are ultimately tied to the main mast 48, but may also be connected through the top of the secondary mast 26. In the embodiment shown there are two sets of back hitch straps 54, one tied to the counterweight unit 60 and one tied to the second counterweight unit 61. Another back hitch strap 58 is tied to the back of the central crane unit 20.
  • This strap is also tied to the live mast 28 and is used to erect the secondary mast 26.
  • Rigging 59 ( Figure 1 ) is used to change the angle between struts 51 and 53, and thus the angle of luffing jib 50 compared to the main boom.
  • the structural members 82 and 84 carry compressive loads and maintain the boom unit 40, the rotating bed 23 and the counterweight unit 60 in lateral alignment with each other. However, these members are pinned so as to allow relative vertical movement between the boom unit 40, the rotating bed 23 and the counterweight unit 60.
  • the structural member 82 may support one or more drums 86, 87 and 88 containing a load hoist line, luffing jib line 59 and boom hoist line, as well as engine module 90.
  • FIGs 4 and 5 show a second embodiment of a crane 110 of the present invention.
  • crane 110 includes three main units: a central crane unit 120, a boom unit 140 and a counterweight unit 160.
  • the boom unit 140 and counterweight unit 160 are connected to the central crane unit 120 by structural members 182 and 184.
  • Rigging 159 is used to change the angle between struts 151 and 153, and thus the angle of the luffing jib 150.
  • Load hoist line and rigging drums, as well as an engine module, are mounted on the structural member 182.
  • the mast back stop 186 shown in Figure 4 can also be used on crane 10.
  • the primary difference in the crane 110 compared to crane 10 is that the moveable ground engaging members on the counterweight unit 160 comprise at least two crawlers 168.
  • Figure 5 shows the crawlers 168 and the crawlers on the boom unit in the orientation for swinging about the central crane unit in phantom lines.
  • FIGS 6 and 7 show another crane 210. This does not fall within the scope of the present invention but is included for background information.
  • This crane is different than cranes 10 and 110 in that it has only two main units: a counterweight unit 260 and a boom unit 240.
  • the counterweight unit is designed to have a central swing axis and the boom unit is configured so that it can either move in an arc about that swing axis, or travel in line with the crawlers on the counterweight unit.
  • the counterweight unit 260 includes a support member 266, counterweight 262 and at least two moveable ground engaging members in the form of two crawlers 268.
  • the support member 266 is mounted to the ground engaging members with a rotatable connection such that the support member 266 can swing with respect to the ground engaging members about a swing axis.
  • the boom unit 240 includes a support member 242, at least two moveable ground engaging members, in this case four crawlers 244, a boom 246 pivotally mounted on the support member 242, and a main mast 248 pivotally mounted on the support member.
  • a structural member 282 extends between the boom unit and the counterweight unit, and can carry compressive loads and maintain the boom unit and the counterweight unit in lateral alignment with each other, but allows relative vertical movement between the boom unit and the counterweight unit.
  • the crane 210 also includes rigging connecting the boom, mast and counterweight unit such that a load lifted by the boom can be counterbalanced by the counterweight.
  • the ground engaging members 244 of the boom unit can be rotated relative to the boom unit support member such that the boom unit i) can travel in an arc around the swing axis of the counterweight unit (as shown in phantom lines in Figure 7 ) and ii) travel in direction in line with the structural member 282.

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

Claims (15)

  1. Grue de levage mobile (10) comprenant :
    a) une unité de grue centrale (20) présentant une caisse (22), des éléments d'engagement au sol mobiles (24) et un lit rotatif (23) monté sur la caisse (22) avec une connexion rotative de sorte que le lit rotatif (23) puisse osciller par rapport aux éléments d'engagement au sol mobiles (24), les éléments d'engagement au sol mobiles étant configurés pour permettre à l'unité de grue centrale de se déplacer sur le sol alors que la grue lève une charge ;
    b) une unité de flèche (40) présentant un élément de support de flèche (42), une flèche (46) étant montée de manière pivotante sur l'élément de support de flèche (42) et au moins un élément d'engagement au sol mobile (44) étant monté sur l'élément de support de flèche (42) de sorte que le poids de la flèche (46) soit supporté par l'élément d'engagement au sol mobile de l'unité de flèche (44) et moyennant quoi la flèche (46), l'élément de support de flèche (42) et l'élément d'engagement au sol mobile de l'unité de flèche (44) se déplacent tous ensemble comme une seule unité ;
    c) une unité de contrepoids (60) présentant un contrepoids (62, 64) sur un élément de support de contrepoids (66) et des éléments d'engagement au sol mobiles montés sur l'élément de support de contrepoids (66) ; et
    d) des cordages reliant la flèche (46) et l'unité de contrepoids (60) de sorte qu'une charge levée par la flèche (46) puisse être contrebalancée par le contrepoids (62, 64) ;
    e) dans laquelle l'unité de flèche (40) est reliée à l'unité de grue centrale (20) par un premier élément structurel (82) et l'unité de contrepoids (60) est reliée à l'unité de grue centrale (20) par un second élément structurel (84), dans laquelle à la fois les premier et second éléments structurels (82, 84) portent des charges compressives et maintiennent l'unité de flèche (40), le lit rotatif (23) et l'unité de contrepoids (60) en alignement latéral les uns avec les autres mais permettent le mouvement vertical relatif entre l'unité de flèche (40), le lit rotatif (23) et l'unité de contrepoids (60) et dans laquelle la grue (10) comprend en outre un mât principal (48) monté de manière pivotante sur l'unité de flèche (40).
  2. Grue de levage mobile (10) selon la revendication 1, dans laquelle les éléments d'engagement au sol mobiles (24) sur l'unité de grue centrale (20) comprennent au moins deux chenilles.
  3. Grue de levage mobile (10) selon la revendication 1 ou 2, dans laquelle les éléments d'engagement au sol mobiles (68) sur l'unité de contrepoids (60) comprennent une pluralité de roues.
  4. Grue de levage mobile (10) selon la revendication 1 ou 2, dans laquelle les éléments d'engagement au sol mobiles (68) sur l'unité de contrepoids (60) comprennent au moins deux chenilles.
  5. Grue de levage mobile (10) selon l'une quelconque des revendications 1 à 4, dans laquelle le mât principal (48) est monté de manière pivotante sur l'élément de support de flèche (42) de l'unité de flèche (40).
  6. Grue de levage mobile (10) selon la revendication 6, dans laquelle l'unité de grue centrale (20) comprend en outre un mât secondaire (26) relié de manière pivotante au lit rotatif (23).
  7. Grue de levage mobile (10) selon l'une quelconque des revendications 1 à 6, dans laquelle chacun des éléments d'engagement au sol mobiles (44) sur l'unité de flèche (40) peut être tourné autour d'un axe vertical de sorte que l'unité de flèche (40) puisse se déplacer à la fois dans i) un arc autour de l'axe de la connexion d'oscillation rotative de l'unité de grue centrale (20) et ii) une direction latérale correspondant à une direction linéaire de déplacement de l'unité de grue centrale (20).
  8. Grue de levage mobile (10) selon l'une quelconque des revendications 1 à 7, comprenant en outre un tambour (86, 87, 88) contenant un câble de relevage de charge, le tambour (86, 87, 88) étant monté sur le premier élément structurel (82).
  9. Grue de levage mobile (10) selon l'une quelconque des revendications 1 à 8, dans laquelle les cordages comprennent i) des cordages de relevage de flèche (52) entre le mât principal (48) et la flèche (46), permettant de modifier l'angle de flèche et ii) des attaches d'attelage arrière (54) entre le mât principal (48) et l'unité de contrepoids (60).
  10. Grue de levage mobile (10) selon l'une quelconque des revendications 1 à 9, comprenant en outre une seconde unité de contrepoids (61) configurée pour une utilisation sans suspension.
  11. Grue de levage mobile (10) selon l'une quelconque des revendications 1 à 10, dans laquelle les éléments d'engagement au sol mobiles (68) sur l'unité de contrepoids (60) peuvent être tournés autour d'un axe vertical de sorte que l'unité de contrepoids (60) puisse se déplacer à la fois dans i) un arc autour de l'axe de la connexion d'oscillation rotative de l'unité de grue centrale (20) et ii) une direction latérale correspondant à une direction de déplacement linéaire de l'unité de grue centrale (20).
  12. Grue de levage mobile (10) selon l'une quelconque des revendications 1 à 11, dans laquelle l'au moins un élément d'engagement au sol mobile (44) sur l'unité de flèche (40) comprend au moins deux chenilles.
  13. Grue de levage mobile (10) selon la revendication 12, dans laquelle les au moins deux chenilles sur l'unité de flèche (40) comprennent deux ensembles de deux chenilles chacun.
  14. Grue de levage mobile (10) selon l'une quelconque des revendications 1 à 13, dans laquelle la flèche (46) comprend une flèche principale et une flèche relevable (50) montée de manière pivotante sur le dessus de la flèche principale.
  15. Grue de levage mobile (10) selon l'une quelconque des revendications 1 à 14, dans laquelle la flèche (46) comprend deux structures de treillis indépendantes qui sont jointes ensemble à la fois sur leurs dessus et dessous.
EP07762113.4A 2006-05-12 2007-05-11 Grue de levage mobile à fixation améliorant le levage Active EP2018341B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US79991506P 2006-05-12 2006-05-12
PCT/US2007/068738 WO2007134211A2 (fr) 2006-05-12 2007-05-11 Grue de levage mobile à fixation améliorant le levage

Publications (3)

Publication Number Publication Date
EP2018341A2 EP2018341A2 (fr) 2009-01-28
EP2018341A4 EP2018341A4 (fr) 2012-11-14
EP2018341B1 true EP2018341B1 (fr) 2015-10-28

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EP07762113.4A Active EP2018341B1 (fr) 2006-05-12 2007-05-11 Grue de levage mobile à fixation améliorant le levage

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EP (1) EP2018341B1 (fr)
KR (1) KR20090018034A (fr)
CN (1) CN101460386B (fr)
BR (1) BRPI0711454A2 (fr)
MX (1) MX2008014122A (fr)
RU (1) RU2445251C2 (fr)
WO (1) WO2007134211A2 (fr)

Families Citing this family (4)

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Publication number Priority date Publication date Assignee Title
DE202008004663U1 (de) * 2008-04-04 2009-08-13 Liebherr-Werk Ehingen Gmbh Gittermastkran und Gittermastausleger
CN201626782U (zh) * 2009-12-24 2010-11-10 三一电气有限责任公司 两栖履带起重机
CN102234076B (zh) * 2010-04-22 2013-04-24 上海三一科技有限公司 履带式配重小车的电气控制装置及其控制方法
WO2013044485A1 (fr) * 2011-09-29 2013-04-04 长沙中联重工科技发展股份有限公司 Mécanisme d'équilibrage à contrepoids et grue à double flèche

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
DE1264010B (de) * 1966-04-28 1968-03-21 Gross G M B H A Krananlage fuer grosse Tragkraefte und Lastmomente
US3868022A (en) * 1973-11-23 1975-02-25 Harnischfeger Corp Self-propelled heavy duty mobile crane
US4382519A (en) * 1979-07-17 1983-05-10 The Manitowoc Company, Inc. Traveling attachment for ring supported lift crane
US4387814A (en) * 1981-09-08 1983-06-14 The Manitowoc Company, Inc. Traveling attachment for ring supported lift crane
US4579234A (en) * 1984-03-16 1986-04-01 American Hoist & Derrick Company Self-erecting mobile crane
US4537317A (en) 1984-04-23 1985-08-27 Fmc Corporation Heavy duty travel crane
SU1370057A1 (ru) * 1986-06-02 1988-01-30 Новосибирский Филиал Всесоюзного Института По Проектированию Организации Энергетического Строительства "Оргэнергострой" Самоходный грузоподъемный кран
JP3424616B2 (ja) * 1999-09-09 2003-07-07 コベルコ建機株式会社 クローラ走行式の作業機械
CN2741949Y (zh) * 2004-10-27 2005-11-23 万维柔 自动配重起重机装置

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Publication number Publication date
KR20090018034A (ko) 2009-02-19
WO2007134211A2 (fr) 2007-11-22
CN101460386A (zh) 2009-06-17
MX2008014122A (es) 2008-11-14
EP2018341A4 (fr) 2012-11-14
CN101460386B (zh) 2012-09-05
BRPI0711454A2 (pt) 2011-11-08
RU2008149047A (ru) 2010-06-20
JP2009536909A (ja) 2009-10-22
EP2018341A2 (fr) 2009-01-28
RU2445251C2 (ru) 2012-03-20
WO2007134211A3 (fr) 2008-11-06
JP5331682B2 (ja) 2013-10-30

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