EP3328780A1 - Grue mobile et procédé pour permettre un déplacement angulaire d'une rallonge de flèche principale par rapport à une flèche principale d'une grue mobile - Google Patents

Grue mobile et procédé pour permettre un déplacement angulaire d'une rallonge de flèche principale par rapport à une flèche principale d'une grue mobile

Info

Publication number
EP3328780A1
EP3328780A1 EP16793863.8A EP16793863A EP3328780A1 EP 3328780 A1 EP3328780 A1 EP 3328780A1 EP 16793863 A EP16793863 A EP 16793863A EP 3328780 A1 EP3328780 A1 EP 3328780A1
Authority
EP
European Patent Office
Prior art keywords
main boom
extension
boom extension
abwinkellasche
abwinkelantrieb
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.)
Granted
Application number
EP16793863.8A
Other languages
German (de)
English (en)
Other versions
EP3328780B1 (fr
Inventor
Michael Martin
Traugott Feß
Roland Kuhn
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.)
Terex Global GmbH
Original Assignee
Terex Global GmbH
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 Terex Global GmbH filed Critical Terex Global GmbH
Publication of EP3328780A1 publication Critical patent/EP3328780A1/fr
Application granted granted Critical
Publication of EP3328780B1 publication Critical patent/EP3328780B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/702—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic with a jib extension boom
    • 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
    • B66C23/64—Jibs
    • B66C23/68—Jibs foldable or otherwise adjustable in configuration
    • 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
    • B66C23/82—Luffing 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
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0392—Movement of the crane arm; Coupling of the crane arm with the counterweights; Safety devices for the movement of the arm

Definitions

  • the invention relates to a mobile crane with a rocker mounted thereon and erectable via a luffing cylinder main boom and with a detachable on a
  • Main boom head of the main boom via upper and lower bolts connected main boom extension the main boom extension from a basic position after a release of the upper or lower bolt by means of a Abwinkelantriebs about a rocking axis relative to the main boom is angled, the Abwinkelantrieb acts on a foot of the main boom extension, a maximum angle of deflection is limited by an adjustable Abwinkelellasche and the Abwinkellasche at the foot of the main boom extension and the
  • the invention relates to a method for bending in a
  • Main boom extension relative to a main boom of a mobile crane is
  • German Utility Model DE 20 2004 020 760 U1 already discloses a mobile crane with a main boom and a main boom extension fastened to its main boom head.
  • the main boom extension is from a home position in which the main boom extension with its
  • Longitudinal direction is aligned in extension of the longitudinal direction of the main boom, in a 20 ° position and a 40 ° position tiltable.
  • Main boom extension is usually over two lower in the range of lower boom of the main boom extension and two upper in the range of
  • the upper boom of the main boom extension bolts arranged releasably attached to the main boom head.
  • first step the two upper bolts are pulled and in a second step, hydraulic rocker cylinders, which engage the main boom head and the main boom extension, cause the rocker axes of the two rocker pins to rock from the basic position
  • Main boom extension effected.
  • the two upper pins are inserted and removed via a hydraulic bolting cylinder.
  • a self-sufficient hydraulic unit is arranged at the lower end of the main boom extension.
  • Hydraulic unit for example, a diesel engine or electric motor can be used in each case with an associated hydraulic pump.
  • the Abwinkellasche is designed as mechanically lockable telescopic device with a tubular guide tab and a guided and extendable therein
  • Sliding tab which is also tubular.
  • the guide tab has stop apertures for receiving bolts which provide support for the slide tab at its lower end and thus provide a preselected length of the angled tab and thus angular adjustment of the main boom extension.
  • the Abwinkellasche is located in the region of a lower flange of the main boom and the main boom extension. The desired angulation is achieved by lifting the main boom, thereby shortening the angled tab until the sliding tab hits and is supported on the bolt.
  • European Patent Application EP 2 253 576 A1 discloses another embodiment of an angle bracket for bending a main boom extension of mobile cranes.
  • the formed from two angle levers Abwinkellasche has in its basic position corresponding to a 0 ° position of the main boom extension to the main boom, a plurality of pairs of aligned stop openings for bolts.
  • the length of the angle bracket can be varied and the main boom extension in various angular positions, preferably 0 °, 20 ° and 40 °, set.
  • the actual Abwinkelterrorism the main boom extension is done by means of a hoist located on the crane or next to the crane.
  • the main boom extension starting from a basic position after loosening the upper bolt or the lower bolt by means of a mobile crane with a rocker mounted thereon and aufrichtbaren about a luffing cylinder main boom extension connected to a main boom head of the main boom an Abwinkelantriebs about a rocking axis relative to the main boom
  • Main boom extension required.
  • the bending itself is largely at the bottom or the storage position of the main boom, so that it is not necessary to work well above the top of the mobile crane.
  • This invention allows the main boom extension to be bent when the mobile crane is on a level ground with a horizontally oriented telescopic boom.
  • the luffing cylinder of the main boom is used for the last part of the whip extension of the main boom extension into a 20 ° or 40 ° position. Since the extension of the hydraulic cylinder of the Abwinkelantriebs can be chosen freely, can at a longer chosen extension of the
  • Main boom extension compensates. This is especially important for long narrow boom systems. Also, this does not require an auxiliary cylinder over which a fork head offset must be compensated. It is preferably provided that the Abwinkelantrieb one hand on the
  • Main boom extension about the rocker axis pivotally raised and lowered.
  • the main boom extension can be bent by means of the Abwinkelantriebs a Wippachse in the region of a lower chord of Hauptauslegerverinrung and the Abwinkelantechnisch engages in the upper belt of the main boom extension.
  • the Abwinkelantrieb is designed as a hydraulic cylinder with housing and rod.
  • the combination Abwinkellasche consists of a sliding tab, a guide tab and the Abwinkelantrieb, the Abwinkelantrieb drivingly on the one hand on the sliding tab and on the other hand on the guide tab attacks and on the
  • the sliding latch is displaceable relative to the guide plate.
  • the Abwinkelantrieb is releasably attached to the sliding latch.
  • the sliding plate is pivotally mounted on the main boom head, the guide plate pivotally mounted on the main boom extension, the sliding tab guided in the guide tab and a
  • Guide tab can be limited.
  • Main boom extension relative to a main boom of a mobile crane, in particular a previously described mobile crane, wherein the main boom is tiltably mounted on the mobile crane and erectable via a luffing cylinder, the
  • Main boom extension is releasably connected to a main boom head of the main boom via upper and lower bolts, a Abwinkelantrieb on a foot of the main boom extension attacks, a maximum angle of deflection by a adjustable Abwinkellasche is limited and the Abwinkellasche attacks on the foot of the main boom extension and the main boom head, a simplification achieved in that by means of the Abwinkelantriebs, the part of a
  • Main boom extension is raised starting from a home position about a rocking axis relative to the main boom, as far as the upper or lower bolts are relieved, then the upper or lower bolts are removed, between the main boom head and a top flange or lower flange of the main boom extension at least one combination Abwinkellasche used is or is already used, by means of Abwinkelantriebs the
  • the main boom extension is raised from a home position about a rocking axis relative to the main boom, as far as the upper bolts are relieved, then the upper bolts are removed, between the main boom head and a top flange
  • Main boom extension at least one combi Abwinkellasche is used or is already used.
  • a mobile crane is understood as meaning both a mobile telescopic crane and a movable crawler crane with a lattice boom.
  • FIG. 1 shows a side view of a main boom extension in a basic position on a main boom
  • FIG. 2 shows a detailed view of FIG. 1 from the area of the coupling of FIG
  • FIG. 3 is an exploded view of a combination Abwinkellasche of Figure 2
  • FIG. 4a is a detail view of a combination Abwinkellasche in the position shown in Figure 1
  • Figure 4b is a side view of Figure 4a
  • FIG. 5 shows a sectional view of FIG. 4b along the section line B-B
  • FIG. 6 shows the main boom according to FIG. 1 with the main boom extension in a 15 ° position
  • FIG. 7a is a detail view of a combination Abwinkellasche in the position shown in Figure 6,
  • Figure 7b is a side view of Figure 7a,
  • FIG. 8 shows the main boom according to FIG. 1 with the main boom extension in a 40 ° position
  • FIG. 9a shows a detail view of a combination angle bracket in the position according to FIG. 8, FIG.
  • FIG. 9b shows a side view of FIG. 9a
  • FIG. 10 shows an exploded view of a combination angle flap in an alternative embodiment
  • FIG. 11 a shows a detailed view of a combined combination bent-off angle pocket according to FIG. 10 and FIG Figure 1 1 b is a side view of Figure 1 1 a.
  • FIG 1 is a side view of a main boom extension 1 in
  • the main boom 2 is designed as a telescopic boom with a base box 2 b and corresponding telescopic shots 2 c. At the free end of the innermost telescopic section 2c, a main boom head 2a is provided.
  • the main boom 2 is part of a telescopic crane, not shown, and is in the usual way via a hydraulic rocker cylinder 7, which is supported on an upper carriage 8 of the telescopic crane, erectable.
  • the superstructure 8 is indicated only by a frame part hereof in Figure 1. In the figure 1, the main boom extension 1 and the
  • Main boom 2 shown in a so-called stowed position in which the
  • Main boom extension 1 with its longitudinal direction v and the main boom 2 with its longitudinal direction h are aligned substantially horizontally.
  • a so-called Wippwinkel a of the main boom 2 relative to the superstructure 8 is thus in the stored position 0 °.
  • Main boom head 2a is the main boom extension 1 via a
  • the main boom extension 1 can be used temporarily or permanently with the telescopic crane to a larger than the largest boom length of the main boom 2 even greater
  • This main boom extension 1 is divided into a trained as a lattice mast boom 1 a, which is a truss pipe construction in the usual way, and a subsequent thereto tip 1 b, which is designed as a box boom.
  • the main boom 2 and the main boom extension 1 are in Figure 1 in a 0 ° position or normal position in which the longitudinal direction h of the main boom 1 and the longitudinal direction v of the main boom extension 1 are aligned or parallel to each other.
  • the main boom extension 1 is tiltable to the main boom 2 about a luffing axis w, which is formed by a lower roll head axis.
  • the main boom extension 1 is in this
  • Main boom head 2a carried.
  • Such main boom extensions 1 are basically constructed as modular systems of individual main elements and can be assembled according to the requirements of their length or load capacity. The single ones
  • Main elements have transportable dimensions and are not carried along with the telescopic crane in most cases, but are transported separately. If the axle loads of the telescopic crane and the size of the
  • Main boom extension 1 allow, if necessary, the
  • Main boom extension 1 are carried. This would then be in a transport position laterally next to and parallel to the main boom 2. A connection of the individual main elements to each other to the desired
  • Main boom extension 1 via bolt connections.
  • the attachment to the main boom head 2a can be made as a whole element or as a preassembled unit or units.
  • FIG. 2 shows a detailed view of FIG. 1 from the area of the coupling of the main boom extension 1 to the main boom 2.
  • Bolt connections to bolting points A, B, C and D are attached to the main boom 2.
  • the lower right bolt connection at the bolting point C is concealed by the main boom 2, but identical to the bolted connection at the
  • each of the four bolt connections is designed as a so-called two-pin bolt connection, which is constructed in a corresponding manner substantially from a forked tongue 4a, a tab 4b and a bolt 4c.
  • the fork lug 4 a with its two opposite holes for the bolt 4 c is in each case in the four Verbolzungsstellen A to D at a foot 1 c of the main boom extension 1 and in extension of the
  • Fork lug 4a vertically aligned with horizontal main boom extension 1.
  • the tab 4b is fixed to the main boom head 2a via an axle 4d.
  • the axis 4d is horizontally and transversely to the longitudinal direction of the main boom 2 aligned and rotatable in the horizontally oriented main boom head 2a Main boom head 2a stored.
  • the tab 4b is also rotatable about the horizontal axis 4d.
  • the tab 4b has a bore which is aligned with the holes of the fork tab 4a. In the holes of the tab 4b and the fork lug 4a, a bolt 4c is inserted to fix the main boom extension 1 to the main boom head 2a in a corresponding manner.
  • Main boom extension 1 can be turned by the angle of deflection b.
  • the lower axis 4d thus forms the rocking axis w.
  • the axis 4d could also serve the bolt 4c, if they were aligned horizontally.
  • the angle of deflection b is usually in the range of 0 ° to 40 °.
  • two so-called angled lugs 5 are provided, of which one is designed as an active combination angle lug 6.
  • the Abwinkellasche 5 and the combination Abwinkellasche 6 extend in the region of the longitudinal sides of the upper belt 1 d of the main boom extension 1 and parallel to each other.
  • the sliding lug 5b is formed as an elongated flat profile with the stop opening 5c and extends substantially parallel to the longitudinal direction v of the main boom extension. 1 At an end facing the main boom head 2a, the sliding lug 5b has a bore, via which the sliding lug 5b is connected to a bolt 5e on the main boom head 2a on the
  • Verbolzungsstelle E is releasably attached.
  • the bolt 5e is with his
  • the guide plate 5d Longitudinal direction aligned parallel to the axis 4d.
  • the guide plate 5d On the sliding tab 5b, the guide plate 5d is pushed, which for this purpose has a closed rectangular cross-section with a guide opening 5f (see Figure 5), in which the Sliding tab 5b inserted and is guided displaceably.
  • the guide plate 5d per se is at one of the main boom head 2a facing the end of a further pin 5i in a Verbolzungstelle G to the basic boom 1 a of
  • Main boom extension 1 detachably attached.
  • the bolt 5i is with his
  • a first of the two stop holes 5g serves to limit the angle of deflection b to 20 ° and a second to 40 °.
  • the stopper holes 5g for 40 ° are correspondingly located closer to the main boom head 2a to allow a larger displacement.
  • a stop pin is inserted into the respective stop hole 5g, which then passes through the two opposite stop holes 5g and the intermediate stop opening 5c.
  • the stop pin 5h is inserted into the second of the two stop holes 5g, which limits the angle of deflection b to 40 °.
  • the stopper bolt 5h is guided adjacent to the pin 5i in the stopper opening 5c.
  • the bolt 5i would come into contact only with the opposing abutment surface 5a of the stopper opening 5c when no stopper bolt 5h is inserted.
  • the second of the two stop holes 5g is free.
  • the active combi Abwinkellasche 6 is similar to the structure of the manual part with the above-described passive Abwinkellasche 5 and has a stop surface 6a, a sliding plate 6b, a stop opening 6c, a guide plate 6d, a bolt 6e, a guide opening 6f, a corresponding manner
  • Stop hole 6g a stop pin 5h corresponding stop pin 6h, which is also referred to as a bolt 6p, and a bolt 6i on.
  • Stop bolt 6h and the bolt 6p are the same in the embodiment and provided only with respect to their Einsteckort with different terms and reference numerals. It is also possible to provide two bolts side by side, but the function of the active combi angled lug 6 does not provide for the simultaneous use of stop bolts 6h and bolts 6p, so that only one bolt can be provided for this purpose.
  • the bolt 6e is in a Verbolzungsstelle F at the
  • Main jib head 2a releasably secured and the bolt 6i at a Verbolzungsstelle H.
  • the stop pin 6h is not plugged in the basic position with the angle of deflection b of 0 °.
  • the active combination Abwinkellasche 6 is supplemented by a drive 6j to actively the guide plate 6d relative to the
  • the sliding lug 6d is provided at its end opposite the main boom head 2a with a connection angle 6m at which the angle drive 6j of two parallel hydraulic cylinders with housings 6k and rod 61 are connected on the housing side.
  • the hydraulic cylinders extend in the longitudinal direction of the Abwinkellasche. 5
  • Bar member 6n extended to form a repository for the Abwinkelantrieb 6j.
  • a bore 6o (see FIG. 3) is arranged to fasten, via another bolt 6p, a coupling part 6q to which the rods 61 of the hydraulic cylinders
  • the hydraulic cylinders can be connected, for example, to existing hydraulic circuits. Basically, this is the hydraulic circuit of a Beiziehzylinders for horizontal
  • the Abwinkelantrieb 6j is dimensioned so that only the weight of the
  • Main boom extension 1 can be angled or angled.
  • the coupling part 6q has a total of three holes to receive the bolt 6p and the ends of the rods 61 of the Abwinkelantriebs 6j and thus the force between the sliding tab 6b and to deflect the guide tab 6d.
  • the stop pin 6h is shown in FIG.
  • FIG. 4 a shows a detailed view of a combi-angled lug 6 in the position according to FIG. 1. It can be seen that the Abwinkelantrieb 6j extended is, ie, the rod 61 is about a Ausfahrweg d from the housing 6k
  • the angle drive 6j can be further extended to reduce the distance between the bolting points G, H and E, F. This leads to a
  • FIG. 5 shows a sectional view of FIG. 4b along the section line B-B. It can be seen that the guide tab 6d is rectangular
  • Cross-section having a central guide opening 6f, in which the sliding tab 6b is guided with its stop opening 6c.
  • the main boom extension 1 is slightly raised, so that the upper pin 4c on the upper flange 1 d of the main boom extension 1 in the Verbolzungsstellen A, B are relieved. The now relieved bolts 4c are then removed. The main boom extension 1 is now based on the two lower pin 4c in combination with the combination Abwinkellasche 6 on the main boom 2 from.
  • the two lower pins 4c and the axis 4d which is also a lower
  • FIG. 7a shows a detailed view of the combination bent-off angle pocket 6 in the 15 ° position according to FIG. 6.
  • FIG. 7b shows a side view of FIG. 7a.
  • a Aufwippen the main boom 2 to the Wippwinkel a the main boom extension 1 further angled and the tip 1f of the main boom extension 1 slides hereby over the bottom 3 in the direction of the main boom 2.
  • the main boom extension 1 is further angled until the Abwinkellasche 5 and the combination Abwinkellasche 6 the Abwinkein in a limit selected position.
  • Main boom extension 1 from floor 3 in the 40 ° position This position, in which the main boom extension 1 to the main boom 2 is in a 40 ° position, is shown in FIG. For reasons of clarity, the tip 1 b of the main boom extension 1 is not shown there.
  • FIG. 9 a shows a detail view of a combination bent-off angle pocket 6 in the position according to FIG. 8.
  • the stopper bolt 6h is in the stopper hole 6g, which faces the main boom head 2a, inserted so as to be the maximum
  • the stopper bolt 6h abuts the stopper surface 6a at the end of the stopper opening 6c. Since the stopper bolt 6h is inserted into the stopper hole 6g closer to the main boom head 2a, the angle of angling b is limited to 40 °. In addition, the Abwinkelantrieb 6j is further decoupled, since the pin 6p is not plugged.
  • FIG. 9b shows a side view of FIG. 9a.
  • a backward or upright of the main boom extension 1 takes place in the reverse order.
  • FIG. 10 shows an exploded view of a combination bending-off pocket 6 in an alternative embodiment, which is presently preferred.
  • the active combination Abwinkellasche 6 is comparable to the construction with the above-described active combination Abwinkellasche 6 and has a corresponding manner
  • the guide tab 6d according to FIG. 10 is comparable to the one described above, the guide opening 6f being correspondingly wider in order to accommodate the wider sliding tab 6b.
  • the guide opening 6f being correspondingly wider in order to accommodate the wider sliding tab 6b.
  • two stop holes 6g in the guide plate 6d only one slot-shaped stop opening 6g 'is present.
  • the illustrated bolt 6p, 6h can be used either to connect the Abwinkelantriebs 6j to the sliding tab 6b or limiting the displacement of the guide plate 6d along the sliding tab 6b.
  • the Abwinkelantrieb 6j in the form of a single
  • Hydraulic cylinder with housing 6k and rod 61 shown. At the free end of the rod 61, the hydraulic cylinder via the bolt 6p when needed with the bore 6o of the sliding plate 6b connectable. At the opposite end, the housing 6k of the hydraulic cylinder together with the guide tab 6d in
  • the tab will be located further away from the main boom head 2a, since the force flow through the combination Abwinkellasche 6 according to Figure 10 differs from that of the combination Abwinkellasche 6 in Figure 2.
  • 1 a shows a detailed view of a combined combination bending angle pocket 6 according to FIG. 10. It can be seen that the bending drive 6j is arranged in the sliding lug 6b between the two sliding lug parts 6b 'and 6b ". are guided accordingly in the guide opening 6f of the guide plate 6d. According to the nested design is on the coupled Abwinkelantrieb 6j or decoupled Abwinkelantrieb 6 on the weight of the
  • Main boom extension 1 the sliding plate 6b relative to the guide plate 6d displaceable.
  • FIG. 11b shows a side view of FIG. 11a.
  • Main boom 2 is described as a telescopic boom and the main boom extension 1 as a lattice boom with box top, the invention is also applicable to other embodiments of main boom 2 and main boom extension 1.
  • the main boom 2 may also be a lattice boom or a combination of telescopic boom, lattice boom and / or box boom.
  • For the main boom extension 1 are lattice boom or
  • Main boom extension 1 is chamfered accordingly, preferably in the form of an adapter, to allow a deviation of the main boom extension 1 about the upper luffing axis w. LIST OF REFERENCE NUMBERS

Landscapes

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

Abstract

L'invention concerne une grue mobile comprenant une flèche principale (2) montée de manière basculante sur cette dernière et pouvant être redressée par l'intermédiaire d'un vérin de basculement (7) ainsi qu'une rallonge de flèche principale (1) raccordée de manière libérable à une tête (2a) de la flèche principale (2) par l'intermédiaire de boulons supérieurs et inférieurs (4c). La rallonge de flèche principale (1) peut effectuer un mouvement angulaire par rapport à la flèche principale (1) à partir d'une position de base, après desserrage des boulons supérieurs ou inférieurs (4c), au moyen d'un organe de commande de déplacement angulaire (6j) autour d'un axe de basculement (w). L'organe de commande de déplacement angulaire agit sur le pied (1c) de la rallonge de flèche principale (1) et la tête de flèche principale (2a). L'objectif de l'invention est de simplifier le déplacement angulaire de la rallonge de flèche principale d'une grue mobile. À cet effet, l'organe de commande de déplacement angulaire (6j) fait partie intégrante d'une patte de déplacement angulaire (5) sous la forme d'une patte combinée (6). L'invention concerne également un procédé pour permettre un déplacement angulaire de cette rallonge de flèche principale.
EP16793863.8A 2015-11-10 2016-11-08 Grue mobile et procédé pour permettre un déplacement angulaire d'une rallonge de flèche principale par rapport à une flèche principale d'une grue mobile Active EP3328780B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015119379.5A DE102015119379B3 (de) 2015-11-10 2015-11-10 Mobilkran und Verfahren zum Abwinkeln einer Hauptauslegerverlängerung relativ zu einem Hauptausleger eines Mobilkrans
PCT/EP2016/077002 WO2017081021A1 (fr) 2015-11-10 2016-11-08 Grue mobile et procédé pour permettre un déplacement angulaire d'une rallonge de flèche principale par rapport à une flèche principale d'une grue mobile

Publications (2)

Publication Number Publication Date
EP3328780A1 true EP3328780A1 (fr) 2018-06-06
EP3328780B1 EP3328780B1 (fr) 2019-07-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP16793863.8A Active EP3328780B1 (fr) 2015-11-10 2016-11-08 Grue mobile et procédé pour permettre un déplacement angulaire d'une rallonge de flèche principale par rapport à une flèche principale d'une grue mobile

Country Status (5)

Country Link
US (1) US10640339B2 (fr)
EP (1) EP3328780B1 (fr)
CN (1) CN108137295B (fr)
DE (1) DE102015119379B3 (fr)
WO (1) WO2017081021A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015119381B3 (de) 2015-11-10 2017-04-27 Terex Global Gmbh Mobilkran und Verfahren zum Abwinkeln einer Hauptauslegerverlängerung relativ zu einem Hauptausleger eines Mobilkrans
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CN108137295B (zh) 2019-12-03
CN108137295A (zh) 2018-06-08
DE102015119379B3 (de) 2017-03-30
US10640339B2 (en) 2020-05-05
WO2017081021A1 (fr) 2017-05-18
US20180346291A1 (en) 2018-12-06

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