EP0733583B1 - Selbstaufstellender Kran mit seitlich klappbarem Ausleger - Google Patents

Selbstaufstellender Kran mit seitlich klappbarem Ausleger Download PDF

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Publication number
EP0733583B1
EP0733583B1 EP96420060A EP96420060A EP0733583B1 EP 0733583 B1 EP0733583 B1 EP 0733583B1 EP 96420060 A EP96420060 A EP 96420060A EP 96420060 A EP96420060 A EP 96420060A EP 0733583 B1 EP0733583 B1 EP 0733583B1
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EP
European Patent Office
Prior art keywords
jib
mast
articulated
crane
foldable
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
EP96420060A
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English (en)
French (fr)
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EP0733583A1 (de
Inventor
François Aquino
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 EP0733583A1 publication Critical patent/EP0733583A1/de
Application granted granted Critical
Publication of EP0733583B1 publication Critical patent/EP0733583B1/de
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
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • 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
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B66C23/348—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes the erection being operated by jacks

Definitions

  • the present invention relates to a self-erecting crane automated, in particular a foldable mast crane, provided an arrow articulated at the top of the mast and made in three successive elements articulated to each other, to know, an arrowhead, an intermediate element of arrow and an arrowhead.
  • the invention relates to a crane whose the boom is folded laterally along the mast and more precisely to a device which allows the folding the arrowhead simultaneously with the folding up the crane for transport.
  • the present invention provides an improvement sensitive to the previous embodiment by providing a device for extending the folding of the arrow laterally along the mast to an arrow made in three elements articulated to each other, so to allow the transport of the folded crane under a smaller footprint, even with a length boom more important.
  • a crane comprises a mast, in particular foldable, at the top of which is articulated, in the centered position, an arrow whose hinge axis is inclined at an acute angle (A) relative to a direction perpendicular to the defined vertical median plane by the mast and the boom in the deployed working position, realized in three successive elements articulated one to the others, designated respectively as arrowheads, intermediate arrow and arrowhead element, the boom foot and the intermediate boom member being hinged at their lower members around an articulation axis inclined at an angle (B), substantially equal to half (A / 2) of the acute angle of inclination (A) of the articulation axis of the boom at top of mast, relative to a perpendicular direction in the vertical median plane of the arrow, so that folded position, the intermediate boom element and the arrowhead are positioned laterally by relative to the mast, the crane further comprising a device motorized unfolding / folding of the mast and boom assembly and means for unfolding / folding the boom elements, and this
  • the additional device for unfolding / folding the arrowhead, relative to the intermediate element of arrow consists of a connecting rod articulated to the part front of the arrow foot and a punch articulated to the rear part of the intermediate boom element, the connecting rod and the punch being articulated together at the top of the punch, of a lever articulated at the rear of the arrowhead and likely to rest on the structure of said arrowhead, and of a drawing connecting the top of the connecting rod / punch assembly to the free end of the lever, to form a quadrilateral deformable.
  • the pulling comprises several successive elements, a first simple element articulated at the top of the whole connecting rod / punch and on which is formed longitudinally a light, a second element comprising a part simple connected to the first element by an axis crossing the light and a double part providing space for the passage of a tie rod supporting the intermediate element, and a third element consisting of two binoculars connecting by joints the ends of the double part of the second tie rod and the free ends of two identical connecting rods forming the lever articulated at the posterior part of the arrowhead.
  • the part lower side of the foldable mast is fitted laterally, side where the boom, unfolding or unfolding is done several rollers likely to take contact with the underside of the arrowhead to finish the complete folding of the crane.
  • the crane shown schematically in the drawing comprises a fixed or rolling basic chassis 1, retractable, supporting by means of a orientation device 2 a rotating frame 3 which carries at the rear a counterweight 4 and at the front of which is articulated around a horizontal axis 5, a foldable mast 6 composed of a lower mast or base mast 7 and a mast upper 8 connected to each other by articulation on their rear face about a horizontal axis 9; the mast of base 7 and upper mast 8 have, in the example considered, an octagonal section.
  • This crane is provided a foldable / collapsible distributor boom 10, carried out in three successive designated elements respectively as jib foot 11, element arrow intermediate 12 and arrowhead 13.
  • the foldable mast 6 is motorized for its unfolding / folding by means of a jack 14, 15 whose body 14 is connected to the base mast 7 by articulation around a horizontal axis 16 disposed on the rear face of this mast base 7 and whose rod 15 is connected by articulation around a horizontal axis 17 at the top of a set of two double connecting rods 18, 19 articulated respectively around a horizontal axis 20 arranged at the part top of base mast 7 and a horizontal axis 21 arranged at the lower part of the upper mast 8.
  • the upper mast 8 is connected to the rotating chassis 3, by means of two dressage shrouds 22, symmetrically arranged on either side of the mast 6 and articulated respectively around a horizontal axis 23 to the base of the upper mast 8 and around a horizontal axis 24 on a support 25 fixed to the rear of the rotating chassis 3.
  • the jib foot 11 is articulated at the top of the mast 6 around a horizontal axis 26 in the working position of the crane ( Figure 5), the axis 26 being placed on an easel 27 protruding under the arrow foot 11.
  • the foot of boom 11 can be folded forward against the mast upper 8, in the folded transport position shown Figures 1 to 3.
  • the easel 27 bears to its part rear upper a rear arrow punch 28 articulated around a horizontal axis 29 and foldable towards the front on the boom 11.
  • the intermediate jib element 12 is articulated at the foot of the arrow 11 around an axis 37, horizontal in working position of the crane, located at the junction of respective lower members 38, 39 of the elements of arrow 12, 11.
  • the intermediate arrow element 12 carries to its rear part a punch 40 whose base is articulated around the aforementioned axis 37, which is foldable towards the front on said intermediate jib element 12.
  • a flexible tie rod of constant length 41 produced in the form of cable for example, connects the apex 42 of the punch 40 to a joint 43 disposed on the upper frame 44 of the front part of the intermediate boom element 12.
  • the respective vertices 34, 42 of the punches 28, 40 are connected to each other by a flexible tie rod 45, produced in the form of a cable for example, while the vertex 34 of the rear arrow punch 28 is connected to the revolving chassis 3, by a rear tie rod flexible 46 also achievable in cable, one point intermediate 47 is fixed to one end of a connecting rod 48 having its other end hinged at 49 on the face rear of base mast 7.
  • the arrowhead 13 is articulated to the element arrow intermediate 12 around an axis 50, the direction is perpendicular to the vertical median plane of arrow 10, arranged at the junction of the members respective upper 51, 44 of the arrow elements 13, 12.
  • the posterior ends of the lower members 52 of the arrowhead 13 come into contact at 53 with the front ends of lower members 38 of the intermediate arrow element 12 to form a assembly aligned with the jib foot 11 and constituting the horizontal distributing jib 10 of the crane.
  • a cable 54 of unfolding / folding the arrow 10 connects a point 55 of the lower rear part of the intermediate element of arrow 12 to a tensioning device 56 fixed to the rear lower part of base mast 7;
  • cable 54 of constant length, passes successively over a first pulley 57 arranged inside the part front of the jib foot 11, on a second pulley 58 arranged inside the rear part of the foot arrow 11, then it forms, as shown in particular by the FIG.
  • a device is provided additional unfolding / folding of the arrowhead 13 relative to the intermediate boom element 12, shown in detail in Figure 12.
  • This device is consisting of: a connecting rod 64 articulated to the part front of jib foot 11 around a horizontal axis 65 disposed on a support 66 fixed to the end of the upper chord 36 and a punch 67 articulated at the rear part of the intermediate jib element 12 around a horizontal axis 68 disposed on a support 69 fixed to the bracing of the lower members 38, the connecting rod 64 and the punch 67 being articulated together at the apex of said punch 67 about a horizontal axis 70; a lever 71, formed of two identical connecting rods 72 and mounted in parallel, articulated at the rear of the arrowhead 13 around horizontal axes 73 arranged on supports 74 fixed to the bracing of lower members 52, capable of bearing on a symmetrical double support 75 fixed to the end of the upper chord 51 in the vicinity of the axis hinge 50 of the arrow
  • the tie rod 76 has several rigid elements successive, a first simple element 79 of relatively short length, the first end of which is articulated around the horizontal axis 70 constituting the apex of the connecting rod 64 / punch 67 assembly and the other of which end forms a longitudinal light 80, a second element 81 comprising a simple part 82 connected to the first element 79 by a horizontal axis 83 traversing perpendicularly the light 80 and a double part 84 leaving a space 85 for the passage of the tie rod 41 supporting the intermediate jib element 12 and a third element 86 consisting of two binoculars 87 identical and mounted in parallel, connecting around axes horizontal articulation 88 the free ends of the second tie member 81 with free ends 78 of two identical connecting rods 72 forming the lever 71.
  • the hinge pin 26 of the jib foot 11 at the top of the mast 6 is inclined at an angle A relative to the usual hinge axis direction 89, perpendicular to the median vertical plane P of the crane in deployed working position, angle A being defined in a plane perpendicular to the longitudinal axis of the mast 6.
  • the hinge pin 37, between the boom foot 11 and the intermediate boom element 12 this is inclined at an acute angle B relative to the axis direction usual 90 articulation, perpendicular to the plane vertical center P of the crane in the deployed position job.
  • the angle B has a value substantially equal to A / 2, and it is the same direction as the angle A in the plane horizontal of arrow 10 when it is aligned.
  • angles of inclination A and B are relatively low value; advantageously, the value of the angle A (expressed in radians and comparable to its tangent) is substantially equal to the ratio between the width of the upper mast 8 and the length of this mast higher 8.
  • the crane In transport position, the crane is presented as shown in Figures 1 to 3.
  • the mast 6 is folded over itself and lowered substantially to the horizontal.
  • Foot of boom 11 is folded over mast 6 and, seen from above ( Figure 3), it is oblique, that is to say with its longitudinal axis making an angle A with the axis longitudinal of the upper mast 8.
  • the intermediate element of boom 12 is folded up under boom foot 11 and it is applied laterally against the upper mast 8, while the arrowhead 13 is folded under the intermediate jib element 12 along its axis longitudinal, the respective upper members 51, 44 said jib elements 13, 12 appearing facing face.
  • the mast 6 In the working position, shown in Figure 5, the mast 6 is straightened and deployed in a vertical position, while arrow 10 is aligned in position substantially horizontal to ensure its function of distributor boom with a cart.
  • the set formed by the mast 6 and the boom 10 is arranged symmetrically by relation to the vertical median plane P (see also figure 4), as in a conventional crane.
  • the additional device for unfolding / folding the arrowhead 13 relative to the intermediate element arrow 12 is folded over said element 12 thanks to the shortening of the length of the tie 76 by displacement of the horizontal axis 83 of the tie rod 81 in the longitudinal opening 80 of the tie rod 79.
  • the element arrow intermediate 12 and the arrowhead 13 is offset from mast 6 due to the inclination of articulation axes 26, 37, so that the element arrow midpoint 12 and arrowhead 13 can cross mast 6 without meeting it, like the show Figures 8, 9 and 10 where said elements of arrow 12, 13 appear as passing "in front" of the mast 6.
  • the arrowhead 13 is supported under the members lower 52 on a set of rollers 91 fixed on one side of the lower part 7 of the foldable mast 6 and while the arrowhead 13 folds under the intermediate jib element 12, the tie 76, connecting the punch 67 to the lever 71, disappears while shortening thanks to the displacement of axis 83 in the light 80 formed on the tie member 79.
  • the crane At the end of the folding operation, the crane is in the transport position described above, with its arrow 10 folded laterally relative to the mast 6.

Claims (5)

  1. Automatisch aufrichtbarer Kran mit seitlich zusammenlegbaren Ausleger, der einen Mast (6) umfaßt, insbesondere einen zusammenlegbaren, an dessen Spitze in einer mittlerer Position ein Ausleger (10) angelenkt ist, dessen Gelenkachse (26) um einen spitzen Winkel (A) im Verhältnis zu einer Richtung (89) senkrecht zu der mittleren vertikalen Ebene (P), die durch den Mast (6) und dem Ausleger (10) in der ausgebreiteten Arbeitsposition gebildet ist, geneigt ist, der aus drei aufeinanderfolgenden aneinander angelenkten Elementen gebildet ist, die jeweils als Ausleger-Fuß (11), Zwischenelement des Auslegers (12) und Auslegerspitze (13) bezeichnet sind, wobei der Ausleger-Fuß (11) und das Zwischenelement des Auslegers (12) auf der Höhe ihrer unteren Gerüste (39, 38) um eine um einen Winkel (B) geneigte Gelenkachse (37), der etwa gleich der Hälfte (A/2) des spitzen Neigungswinkels (A) der Gelenkachse (26) des Auslegers (10) an der Spitze des Mastes (6) ist, in Bezug auf eine Richtung (90) senkrecht zu der mittleren vertikalen Ebene des Auslegers (10) angelenkt sind, derart, daß in der zusammengelegten Position das Zwischenelement des Auslegers (12) und die Auslegerspitze (13) seitlich im Verhältnis zu dem Mast (6) positioniert sind, wobei der Kran noch eine motorisierte Vorrichtung (14 bis 25, 28, 30, 40, 41, 45, 46) zum Aufrichten / Zusammenlegen der Einheit aus Mast (6) und Ausleger (10) und Mittel (54 bis 63) zum Aufrichten / Zusammenlegen der Elemente (11, 12, 13) des Auslegers umfaßt, dadurch gekennzeichnet, daß das Zwischenelement des Auslegers (12) und die Auslegerspitze (13) auf der Höhe ihres oberen Gerüstes (44, 51) um eine Gelenkachse (50) angelenkt sind, deren Richtung senkrecht zu einer mittleren vertikalen Ebene des Auslegers (10) ist und daß eine ergänzende Vorrichtung (64 bis 88) zum Aufrichten / Zusammenlegen der Auslegerspitze (13) im Verhältnis zu dem Zwischenelement des Auslegers (12) zwischen dem Ausleger-Fuß (11) und der Auslegerspitze (13) angeordnet ist.
  2. Automatisch aufrichtbarer Kran mit seitlich zusammenlegbaren Ausleger nach Anspruch 1, dadurch gekennzeichnet, daß die ergänzende Vorrichtung zum Aufrichten / Zusammenlegen der Auslegerspitze (13) im Verhältnis zu dem Zwischenelement des Auslegers (12) durch eine Stange (64), die (bei 65) an dem vorderen Teil des Ausleger-Fußes (11) angelenkt ist, und eine Stütze (67), die (bei 68) an dem hinteren Teil des Zwischenelements des Auslegers (12) angelenkt ist, wobei die Stange (64) und die Stütze (67) zusammen (bei 70) an der Spitze der Stütze (67) angelenkt sind, einen Hebel (71), der (bei 73) an dem hinteren Teil der Auslegerspitze (13) angelenkt ist und geeignet zum Lagern (bei 75) auf dem Gerüst der Auslegerspitze (13) ist, und einem Zugelement (76) gebildet ist, das die Spitze (70) der Einheit Stange (64) / Stütze (67) mit dem freien Ende (77) des Hebels (71) verbindet, um ein deformierbares Viereck zu bilden.
  3. Automatisch aufrichtbarer Kran mit seitlich zusammenlegbaren Ausleger nach Anspruch 2, dadurch gekennzeichnet, daß das Zugelement (76) mehrere aufeinanderfolgenden Elemente umfaßt, ein erstes einfaches Element (79), das (bei 70) an der Spitze der Einheit Stange (64) / Stütze (67) angelenkt ist und auf dem in Längsrichtung eine Öffnung (80) ausgespart ist, ein zweites Element (81), das ein einfaches Teil (82) umfaßt, das mit dem ersten Element durch eine Achse (83) verbunden ist, die die Öffnung (80) und ein doppeltes Teil (84) durchquert, in dem ein Raum (85) für das Passieren eine Zugelementes (41) ausgespart ist, das das Zwischenelement des Auslegers (12) hält, und ein drittes Element (86), das aus zwei Stangen (87) gebildet ist, die über Gelenkverbindungen (88) die Enden des doppelten Teiles (84) des zweiten Zugelementes (81) und der freien Enden (78) der zwei identischen Stangen (72) verbindet, die den Hebel (71) bilden, der (bei 73) an dem hinteren Teil der Auslegerspitze (13) angelenkt ist.
  4. Automatisch aufrichtbarer Kran mit seitlich zusammenlegbaren Ausleger nach einem der Ansprüche 1 bis 3, mit einem zusammenlegbaren Mast (6), der durch einen unteren Mast (7) und einen oberen Mast (8) gebildet ist, dadurch gekennzeichnet, daß der untere Mast (7) seitlich an der Seite, wo das Aufrichten / Zusammenlegen des Auslegers (10) stattfindet, mit einer oder mehreren Drehrollen (91) ausgerüstet ist, die geeignet sind, Kontakt mit der Unterseite der Auslegerspitze (13) aufzunehmen, um das Zusammenlegen des Kranes abzuschließen.
  5. Automatisch aufrichtbarer Kran mit seitlichem zusammenlegbaren Ausleger nach einem der Ansprüche 1 bis 4 mit einem zusammenlegbaren Mast (6), der durch einen unteren Mast (7) und einen oberen Mast (8) gebildet ist, dadurch gekennzeichnet, daß der Wert des Neigungswinkels (A) der Gelenkachse (26) des Ausleger-Fußes (11) an der Spitze des Mastes (6) in Grad ausgedrückt etwa gleich zu dem Verhältnis zwischen der Breite des oberen Mastes (8) und der Länge dieses oberen Mastes (8) ist.
EP96420060A 1995-03-21 1996-02-26 Selbstaufstellender Kran mit seitlich klappbarem Ausleger Expired - Lifetime EP0733583B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9503529 1995-03-21
FR9503529A FR2731999B1 (fr) 1995-03-21 1995-03-21 Grue a montage automatise avec fleche repliable lateralement

Publications (2)

Publication Number Publication Date
EP0733583A1 EP0733583A1 (de) 1996-09-25
EP0733583B1 true EP0733583B1 (de) 1999-04-28

Family

ID=9477426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96420060A Expired - Lifetime EP0733583B1 (de) 1995-03-21 1996-02-26 Selbstaufstellender Kran mit seitlich klappbarem Ausleger

Country Status (7)

Country Link
EP (1) EP0733583B1 (de)
CN (1) CN1147476A (de)
AT (1) ATE179391T1 (de)
DE (1) DE69602223T2 (de)
ES (1) ES2132860T3 (de)
FR (1) FR2731999B1 (de)
RU (1) RU2169695C2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2761970B1 (fr) * 1997-04-11 1999-05-28 Potain Sa Dispositif de relevage de mat pour grue a tour telescopique
FR2765564B1 (fr) * 1997-07-02 1999-08-27 Potain Sa Mature pliable en trois elements avec dispositif de pliage/depliage pour grue a tour
FR2838415B1 (fr) * 2002-04-12 2004-10-01 Potain Sa Dispositif de relevage et depliage du mat et de relevage de la fleche d'une grue
CN102320526B (zh) * 2011-09-14 2013-02-13 哈尔滨东建机械制造有限公司 一种自装卸可折叠塔式起重机
CN110697436B (zh) * 2019-10-16 2020-12-01 长沙理工大学 一种水平旋转的折叠臂输送机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57170379A (en) * 1981-04-08 1982-10-20 Hitachi Ltd Undulating beam middle folding device for crane
DE3303524A1 (de) * 1983-02-03 1984-08-09 Wilhelm 5020 Frechen König Turmdrehkran
FR2550176B1 (fr) * 1983-08-03 1985-10-11 Potain Sa Grue a fleche depliable en plusieurs elements articules
IT1185969B (it) * 1985-10-02 1987-11-18 Cattaneo Luigi Spa Gru articolata con innalzamento della torre ed estensione del braccio automatici
FR2643625B2 (fr) * 1988-09-20 1991-11-22 Potain Sa Grue repliable a fleche en trois elements articules les uns aux autres
FR2665429B1 (fr) * 1990-07-31 1992-10-02 Cadillon Sa Grue a montage automatise, avec fleche repliable lateralement.

Also Published As

Publication number Publication date
EP0733583A1 (de) 1996-09-25
DE69602223T2 (de) 1999-11-11
FR2731999B1 (fr) 1997-05-30
RU2169695C2 (ru) 2001-06-27
ES2132860T3 (es) 1999-08-16
CN1147476A (zh) 1997-04-16
ATE179391T1 (de) 1999-05-15
FR2731999A1 (fr) 1996-09-27
DE69602223D1 (de) 1999-06-02

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