EP3339237B1 - Hydraulikkran - Google Patents

Hydraulikkran Download PDF

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Publication number
EP3339237B1
EP3339237B1 EP16205464.7A EP16205464A EP3339237B1 EP 3339237 B1 EP3339237 B1 EP 3339237B1 EP 16205464 A EP16205464 A EP 16205464A EP 3339237 B1 EP3339237 B1 EP 3339237B1
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EP
European Patent Office
Prior art keywords
crane
link
pair
link elements
boom
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EP16205464.7A
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English (en)
French (fr)
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EP3339237A1 (de
Inventor
Erik Nylander
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Cargotec Patenter AB
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Cargotec Patenter AB
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Priority to EP16205464.7A priority Critical patent/EP3339237B1/de
Priority to DK16205464.7T priority patent/DK3339237T3/da
Priority to PCT/EP2017/080749 priority patent/WO2018114250A1/en
Publication of EP3339237A1 publication Critical patent/EP3339237A1/de
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Publication of EP3339237B1 publication Critical patent/EP3339237B1/de
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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
    • B66C23/54—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 with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors
    • 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
    • B66C23/54—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 with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors
    • B66C23/545—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 with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors with arrangements for avoiding dead centre problems during cylinder motion

Definitions

  • the present invention relates to a hydraulic crane according to the preamble of claim 1.
  • a hydraulic crane for instance in the form of a lorry crane or forestry crane, often comprises a column, which is rotatable about a vertical axis of rotation, and a crane boom system, which is mounted to the column and which is intended to carry a load in a load suspension point at an outer end of the crane boom system, wherein the crane boom system comprises two or more liftable and lowerable crane booms which form a connection between the load suspension point and the column and which are articulately connected to each other.
  • liftable and lowerable crane boom refers to a crane boom which can be pivoted in a vertical plane so as to thereby perform liftings and lowerings of a load carried by the crane.
  • hydraulic cylinder for lifting and lowering the crane boom here refers to the hydraulic cylinder which is associated with the liftable and lowerable crane boom and which carries out the pivoting thereof in a vertical plane.
  • the hydraulic crane according to the present invention is a so-called Z-type crane, where inner and outer booms of the crane are foldable into a compact Z-shaped parking position close to the column of the crane when the crane is to be transported or stored.
  • a Z-type crane according to the preamble of claim 1 is previously known from EP 1 475 345 A1 and US 4 183 712 A .
  • a further prior art document WO 2018/080403 A1 which is prior art according to Article 54(3) EPC, discloses the features of the preamble of claim 1 and additionally the further features of a link system comprising a first pair of link elements and a second pair of link elements arranged in parallel with each other on opposite sides of the first and second crane booms at said crane boom joint; that each pair of link elements comprises a first link element, which at one end is articulately connected to the first crane boom so as to be pivotable in relation to the first crane boom about an essentially horizontal third axis of rotation, and a second link element, which at one end is articulately connected to the second crane boom so as to be pivotable in relation to the second crane boom about an essentially horizontal fourth axis of rotation, wherein the first and second link elements in each pair are articulately connected to each other so as to be pivotable in relation to each other about an essentially horizontal fifth axis of rotation; that the second hydraulic cylinder at its outer end is articulately connected to the first pair of link elements; and that the link elements
  • the object of the present invention is to achieve a further development of a hydraulic crane of the above-mentioned type so as to provide a hydraulic crane that is improved in at least some aspect.
  • the hydraulic crane of the present invention comprises:
  • the above-mentioned link system is used in order to effect an automatic modification of the point of application of the force exerted by the second hydraulic cylinder as the piston rod of the second hydraulic cylinder is extended, and the link system thereby influences the moment arm of the force exerted by the second hydraulic cylinder.
  • the link elements of the link system are so arranged that the moment arm of the force acting on the crane boom joint between the first and second crane booms, i.e.
  • the moment arm of the force exerted by the second hydraulic cylinder is longer at the normal working positions of the first and second crane booms as compared to a corresponding Z-type crane lacking a link system at the joint between the first and second crane booms, which implies that the crane boom joint between the first and second crane booms of the crane according to the invention has a higher lifting capacity at these working positions as compared to a corresponding Z-type crane lacking a link system at the joint between the first and second crane booms.
  • the cross bar element stabilizes the link system.
  • the link elements of the link system are configured to move the cross bar element between a position below said crane boom joint when the first and second crane booms are in an extended working position and a position above the crane boom joint when the first and second crane booms are in the parking position, the cross bar element is prevented from restricting the angular range of the crane boom joint between the first and second crane booms.
  • a hydraulic crane 1 not forming part of the present claimed invention is illustrated in Figs 1-10 .
  • the crane 1 is for instance a lorry crane or forestry crane.
  • the crane according to the invention may also be a stationarily mounted crane, for instance at a timber-yard or in a factory.
  • the crane 1 is mounted on a frame 2, which for instance may be connected to the chassis of a lorry or a forestry vehicle.
  • the frame 2 may be provided with adjustable support legs (not shown) for supporting the crane 1.
  • the crane 1 comprises:
  • the second hydraulic cylinder 10 is arranged on a first side of the inner boom 6, and the third hydraulic cylinder 11 is arranged in parallel with the second hydraulic cylinder 10 on an opposite second side of the inner boom 6.
  • the second and third hydraulic cylinders 10, 11 are arranged in parallel with each other on opposite sides of the inner boom 6 and they are configured to be operated synchronously in order to pivot the outer boom 8 in relation to the inner boom 6.
  • the third hydraulic cylinder 11 could be omitted.
  • the first hydraulic cylinder 7 comprises a cylinder part 7a which is articulately connected to the column 4, and a piston which is received in the cylinder part 7a and displaceable in relation to it, wherein the piston is fixed to a piston rod 7b which is articulately connected to the inner boom 6.
  • each one of the second and third hydraulic cylinders 10, 11 has an inner end facing the column 4 and an opposite outer end facing the outer boom 8.
  • each one of the second and third hydraulic cylinders 10, 11 comprises a cylinder part 10a, 11a which is articulately connected to the inner boom 6, and a piston which is received in the cylinder part 10a, 11a and displaceable in relation to it, wherein the piston is fixed to a piston rod 10b, 11b which is articulately connected to the outer boom 8 through a link system 12.
  • the outer boom 8 is telescopically extensible to enable an adjustment of the extension length thereof.
  • the outer boom 8 comprises a base section 8a, through which the outer boom 8 is articulately connected to the inner boom 6, and several telescopic crane boom sections 8b which are carried by the base section 8a and displaceable in the longitudinal direction of the base section by means of one or more hydraulic cylinders (not shown) for adjustment of the extension length of the outer boom 8.
  • a load handling tool (not shown) is to be mounted to the outer end of the outer boom 8.
  • the above-mentioned link system 12 at the outer end of the second and third hydraulic cylinders 10, 11 comprises a first pair of link elements 13a, 14a and a second pair of link elements 13b, 14b arranged in parallel with each other on opposite sides of the inner and outer booms 6, 8 at the crane boom joint 9.
  • Each pair of link elements comprises a first link element 13a, 13b, which has an inner end and an opposite outer end.
  • Each first link element 13a, 13b is at its inner end articulately connected to the inner boom 6 so as to be pivotable in relation to the inner boom 6 about an essentially horizontal axis of rotation A3, in the following denominated third axis of rotation.
  • the first link elements 13a, 13b extend in parallel with each other on opposite sides of the inner boom 6 and they are of the same length.
  • the first link element 13a included in the first pair of link elements is arranged on the same side of the inner boom 6 as the second hydraulic cylinder 10
  • the first link element 13b included in the second pair of link elements is arranged on the same side of the inner boom 6 as the third hydraulic cylinder 11.
  • Each pair of link elements further comprises a second link element 14a, 14b, which has an inner end and an opposite outer end.
  • Each second link 14a, 14b is at its inner end articulately connected to the outer boom 8 so as to be pivotable in relation to the outer boom 8 about an essentially horizontal axis of rotation A4, in the following denominated fourth axis of rotation.
  • the second link elements 14a, 14b extend in parallel with each other on opposite sides of the outer boom 8 and they are of the same length.
  • the first and second link elements 13a, 14a of the first pair of link elements are articulately connected to each other so as to be pivotable in relation to each other about an essentially horizontal axis of rotation A5, in the following denominated fifth axis of rotation.
  • the first and second link elements 13b, 14b of the second pair of link elements are also articulately connected to each other so as to be pivotable in relation to each other about the fifth axis of rotation A5.
  • the link system 12 further comprises a cross bar element 15, through which the first pair of link elements 13a, 14a is connected to the second pair of link elements 13b, 14b.
  • the cross bar element 15 is configured to support the link elements 13a, 14a of the first pair of link elements in relation to the link elements 13b, 14b of the second pair of link elements so as to thereby stabilize the link system 12.
  • the cross bar element 15 has the form of a pivot shaft, wherein at least one of the link elements 13a, 14a, 13b, 14b in each pair of link elements is pivotally mounted to the cross bar element 15.
  • the cross bar element 15 extends linearly along the above-mentioned fifth axis of rotation A5, wherein the second and third hydraulic cylinders 10, 11 at their outer ends are articulately connected to the first pair of link elements 13a, 14a and the second pair of link elements 13b, 14b, respectively, through the cross bar element 15.
  • the second and third hydraulic cylinders 10, 11 are at their outer ends fixed to the cross bar element 15 at opposite ends of the cross bar element, and both of the link elements 13a, 14a, 13b, 14b in each pair of link elements are at their outer ends pivotally mounted to the cross bar element 15.
  • the second link element 14a, 14b in each pair of link elements has a prolonged part 16 which extends beyond the above-mentioned fifth axis of rotation A5, wherein the cross bar element 15 extends between the outer end of the second link element 14a of the first pair of link elements and the outer end of the second link element 14b of the second pair of link elements.
  • the second and third hydraulic cylinders 10, 11 are at their outer ends fixed to the cross bar element 15 at opposite ends of the cross bar element.
  • the second and third hydraulic cylinders 10, 11 may at their outer ends be articulately connected to the second link elements 14a, 14b at any position between the fifth axis of rotation A5 and the outer end of the second link elements.
  • the first link element 13a, 13b in each pair of link elements has a prolonged part 17 which extends beyond the above-mentioned fifth axis of rotation A5, wherein the cross bar element 15 extends between the outer end of the first link element 13a of the first pair of link elements and the outer end of the first link element 13b of the second pair of link elements.
  • the second and third hydraulic cylinders 10, 11 are at their outer ends fixed to the cross bar element 15 at opposite ends of the cross bar element.
  • the second and third hydraulic cylinders 10, 11 may at their outer ends be articulately connected to the first link elements 13a, 13b at any position between the fifth axis of rotation A5 and the outer end of the first link elements.
  • the links 13a, 14a, 13b, 14b of the link system 12 effect an automatic modification of the point of application of the lifting force exerted by the second and third hydraulic cylinders 10, 11 as the piston rods 10b, 11b of the second and third hydraulic cylinders are extended and retracted, and the link system 12 thereby influences the moment arm of the force exerted by these hydraulic cylinders 10, 11.
  • the hydraulic crane 1 is a Z-type crane, wherein the inner and outer booms 6, 8 are foldable into a compact Z-shaped parking position close to the column 4 when the crane is to be transported or stored, as illustrated in Figs 6 and 7 .
  • the inner boom 6 In the parking position, the inner boom 6 is folded downwards to a position close to the column 4, and the outer boom 8 is folded backwards and lies against the inner boom 6 on the upper side thereof.
  • the inner and outer booms 6, 8 extend essentially in parallel with each other in the parking position.
  • the link elements 13a, 14a, 13b, 14b of the link system 12 are configured to mechanically guide the cross bar element 15 in an arcuate path about the crane boom joint 9 between the inner and outer booms 6, 8 when the outer boom 8 is pivoted in relation to the inner boom 6, so as to make the cross bar element 15 assume a position below the crane boom joint 9 when the inner and outer booms 6, 8 are in an extended working position, as illustrated in Figs 1-5 , and a position above the crane boom joint 9 when the inner and outer booms 6, 8 are in the parking position, as illustrated in Figs 6 and 7 .
  • the cross bar element 15 is moveable from the position illustrated in Fig 5 to the position illustrated in Fig 6 , which implies that the cross bar element 15 is moveable over a very large angular range about the crane boom joint 9 between the inner and outer booms 6, 8.
  • the link system 12 In order to allow the link system 12 to operate as desired in the embodiment not forming part of the present claimed invention illustrated in Figs 1-10 , the link system 12 should be so configured that it fulfils the following conditions:
  • Figs 8-10 illustrate one possible manner of moving the inner and outer booms 6, 8 from the working position illustrated in Fig 1 to the parking position illustrated in Figs 6 and 7 .
  • a first step see Fig 8
  • the piston rod 7b of the first hydraulic cylinder 7 is extended in order to lift the inner boom 6 as high as possible
  • the piston rods 10b, 11b of the second and third hydraulic cylinders 10, 11 are extended to the end position illustrated in Fig 8 .
  • the longitudinal axis of the second and third hydraulic cylinders 10, 11 cross the second axis of rotation A2, which implies that the moment arm of the force exerted by the second and third hydraulic cylinders 10, 11 is zero.
  • the moment arm between the crane boom joint 9 and the centre of gravity of the outer boom 8 is rather long at this angular position of the outer boom 8, which implies that the outer boom 8 will fall downwards towards the upper side of the inner boom 6 under the effect of gravity.
  • the outer end of the piston rods 10b, 11b of the second and third hydraulic cylinders 10, 11 will move to the other side of the crane boom joint 9, while increasing the moment arm of the force exerted by the second and third hydraulic cylinders 10, 11, as illustrated in Fig 9 .
  • the piston rod 7b of the first hydraulic cylinder 7 is retracted in order to fold the inner boom 6 downwards to a parking position close to the column 4, and the piston rods 10b, 11b of the second and third hydraulic cylinders 10, 11 are retracted in order to fold the outer boom 6 downwards to a parking position close to the upper side of the inner boom 6.
  • FIG. 13 A prior art crane 100 with no link system at the crane boom joint 109 between the inner and outer booms 106, 108 is illustrated in Fig 13 in a position corresponding to the position illustrated in Fig 8 . Except for the lack of the link system 12, the prior art crane 100 illustrated in Fig 13 has exactly the same design as the crane 1 according to the embodiment not forming part of the present claimed invention illustrated in Figs 1-10 .
  • the outer end of the second hydraulic cylinder 110 is articulately connected to the outer boom 108 by a joint 120.
  • the outer boom 108 of the prior art crane 100 is more vertically directed than the outer boom 8 of the crane 1 according to the present invention at the moment when the moment arm of the force exerted by the second hydraulic cylinder 110 is zero, which in its turn implies that the moment arm between the crane boom joint 109 and the centre of gravity of the outer boom 108 is much shorter in the prior art crane 100 than in the crane 1 according to the invention, at this stage during the movement of the inner and outer booms to the parking position.
  • one of the positive effects of the link system 12 is that it will give the outer boom 8 an increased inclination in relation to the inner boom 6 at the moment when the moment arm of the force exerted by the second and third hydraulic cylinders 10, 11 is zero, which in its turn will facilitate the movement of the outer boom 8 to the parking position.

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

Claims (7)

  1. Hydraulischer Kran, umfassend:
    - eine Säule (4);
    - einen anhebbaren und absenkbaren ersten Kranausleger (6), der gelenkig mit der Säule (4) verbunden ist, so dass er in Bezug auf die Säule um eine im Wesentlichen horizontale erste Drehachse (A1) schwenkbar ist;
    - einen ersten Hydraulikzylinder (7) zum Anheben und Absenken des ersten Kranauslegers (6) in Bezug auf die Säule (4);
    - einen anhebbaren und absenkbaren zweiten Kranausleger (8), der gelenkig mit dem ersten Kranausleger (6) durch ein Kranauslegergelenk (9) verbunden ist, so dass er in Bezug auf den ersten Kranausleger um eine im Wesentlichen horizontale zweite Drehachse (A2) schwenkbar ist, wobei der erste und zweite Kranausleger (6, 8) zu der Säule (4) hin klappbar sind, um so eine kompakte Z-förmige Parkposition zusammen mit der Säule anzunehmen; und
    - einen zweiten Hydraulikzylinder (10), der auf einer ersten Seite des ersten Kranauslegers (6) zum Anheben und Absenken des zweiten Kranauslegers (8) in Bezug auf den ersten Kranausleger (6) angeordnet ist, wobei der zweite Hydraulikzylinder (10) ein inneres Ende, das zu der Säule (4) weist, sowie ein gegenüberliegendes äußeres Ende aufweist, wobei der zweite Hydraulikzylinder (10) an seinem inneren Ende gelenkig mit dem ersten Kranausleger (6) verbunden ist;
    dadurch gekennzeichnet, dass:
    - der Hydraulikkran (1) mit einem Kopplungssystem (12) versehen ist, das ein erstes Paar von Kopplungselementen (13a, 14a) und ein zweites Paar von Kopplungselementen (13b, 14b) umfasst, die parallel zueinander auf gegenüberliegenden Seiten des ersten und zweiten Kranauslegers (6, 8) an dem Kranauslegergelenk (9) angeordnet sind;
    - jedes Paar von Kopplungselementen ein erstes Kopplungselement (13a, 13b), das an einem Ende gelenkig mit dem ersten Kranausleger (6) verbunden ist, so dass es in Bezug auf den ersten Kranausleger (6) um eine im Wesentlichen horizontale dritte Drehachse (A3) schwenkbar ist, und ein zweites Kopplungselement (14a, 14b) umfasst, das an einem Ende gelenkig mit dem zweiten Kranausleger (8) verbunden ist, so dass es in Bezug auf den zweiten Kranausleger (8) um eine im Wesentlichen horizontale vierte Drehachse (A4) schwenkbar ist, wobei das erste und das zweite Kopplungselement (13a, 14a, 13b, 14b) in jedem Paar gelenkig miteinander verbunden sind, so dass sie in Bezug zueinander um eine im Wesentlichen horizontale fünfte Drehachse (A5) schwenkbar sind;
    - der zweite Hydraulikzylinder (10) an seinem äußeren Ende gelenkig mit dem ersten Paar von Kopplungselementen (13a, 14a) verbunden ist; und
    - das Kopplungssystem (12) ein Querstangenelement (15) umfasst, durch das das erste Paar von Kopplungselementen (13a, 14a) mit dem zweiten Paar von Kopplungselementen (13b, 14b) verbunden ist, wobei die Kopplungselemente (13a, 14a, 13b, 14b) des Kopplungssystems so konfiguriert sind, dass sie das Querstangenelement (15) mechanisch in einem bogenförmigen Pfad um das Kranauslegergelenk (9) führen, wenn der zweite Kranausleger (8) in Bezug auf den ersten Kranausleger (6) geschwenkt ist, um so zu ermöglichen, dass das Querstangenelement (15) eine Position unterhalb des Kranauslegergelenks (9) annimmt, wenn der erste und zweite Kranausleger (6, 8) in einer ausgefahrenen Arbeitsposition sind, und eine Position oberhalb des Kranauslegergelenks (9) annimmt, wenn der erste und zweite Kranausleger in der Parkposition sind,
    wobei:
    • das zweite Kopplungselement (14a, 14b) in jedem Paar von Kopplungselementen ein verlängertes Teil (16) aufweist, das sich über die fünfte Drehachse (A5) hinaus erstreckt, und sich das Querstangenelement (15) zwischen dem äußeren Ende des zweiten Kopplungselements (14a) des ersten Paares von Kopplungselementen und dem äußeren Ende des zweiten Kopplungselements (14b) des zweiten Paars von Kopplungselementen erstreckt, oder
    • das erste Kopplungselement (13a, 13b) in jedem Paar von Kopplungselementen ein verlängertes Teil (17) aufweist, das sich über die fünfte Drehachse (A5) hinaus erstreckt, und sich das Querstangenelement (15) zwischen dem äußeren Ende des ersten Kopplungselements (13a) des ersten Paares von Kopplungselementen und dem äußeren Ende des ersten Kopplungselements (13b) des zweiten Paares von Kopplungselementen erstreckt.
  2. Hydraulikkran nach Anspruch 1, dadurch gekennzeichnet, dass
    - der Hydraulikkran (1) einen oder mehrere Hydraulikzylinder (11), hier mit drei Hydraulikzylindern bezeichnet, zum Anheben und Absenken des zweiten Kranauslegers (8) in Bezug auf den ersten Kranausleger (6) umfasst, wobei der dritte Hydraulikzylinder (11) auf einer zweiten Seite des ersten Kranauslegers (6) gegenüberliegend und parallel zu dem zweiten Hydraulikzylinder (10) angeordnet ist, wobei der dritte Hydraulikzylinder (11) ein inneres Ende, das zu der Säule (4) weist, und ein gegenüberliegendes äußeres Ende aufweist; und
    - der dritte Hydraulikzylinder (11) an seinem inneren Ende gelenkig mit dem ersten Kranausleger (6) verbunden ist und an seinem äußeren Ende gelenkig mit dem zweiten Paar von Kopplungselementen (13b, 14b) verbunden ist.
  3. Hydraulikkran nach Anspruch 2, dadurch gekennzeichnet, dass der zweite und dritte Hydraulikzylinder (10, 11) an ihren äußeren Enden gelenkig mit dem ersten Paar von Kopplungselementen (13a, 14a) bzw. dem zweiten Paar von Kopplungselementen (13b, 14b) durch das Querstangenelement (15) verbunden sind, wobei der zweite und dritte Hydraulikzylinder (10, 11) an ihren äußeren Enden an dem Querstangenelement (15) an seinen gegenüberliegenden Enden befestigt sind.
  4. Hydraulikkran nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, dass der zweite und dritte Hydraulikzylinder (10, 11) an ihren äußeren Enden gelenkig mit den zweiten Kopplungselementen (14a, 14b) an einer Position zwischen der fünften Drehachse (A5) und dem äußeren Ende der zweiten Kopplungselemente verbunden sind.
  5. Hydraulikkran nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, dass der zweite und dritte Hydraulikzylinder (10, 11) an ihren äußeren Enden gelenkig mit den ersten Kopplungselementen (13a, 13b) an einer Position zwischen der fünften Drehachse (A5) und dem äußeren Ende des ersten Kopplungselemente verbunden sind.
  6. Hydraulikkran nach einem der Ansprüche 1 - 5, dadurch gekennzeichnet, dass der zweite Kranausleger (8) teleskopisch ausfahrbar ist, um so eine Einstellung seiner Ausfahrlänge zu ermöglichen.
  7. Hydraulikkran nach einem der Ansprüche 1 - 6, dadurch gekennzeichnet, dass der Hydraulikkran (1) ein Lastwagenkran oder ein Forstkran ist.
EP16205464.7A 2016-12-20 2016-12-20 Hydraulikkran Active EP3339237B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16205464.7A EP3339237B1 (de) 2016-12-20 2016-12-20 Hydraulikkran
DK16205464.7T DK3339237T3 (da) 2016-12-20 2016-12-20 Hydraulisk kran
PCT/EP2017/080749 WO2018114250A1 (en) 2016-12-20 2017-11-29 Hydraulic crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16205464.7A EP3339237B1 (de) 2016-12-20 2016-12-20 Hydraulikkran

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Publication Number Publication Date
EP3339237A1 EP3339237A1 (de) 2018-06-27
EP3339237B1 true EP3339237B1 (de) 2020-07-22

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EP (1) EP3339237B1 (de)
DK (1) DK3339237T3 (de)
WO (1) WO2018114250A1 (de)

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Publication number Priority date Publication date Assignee Title
CN112405603B (zh) * 2019-08-20 2021-10-22 沈阳新松机器人自动化股份有限公司 一种重载大惯量转载机器人

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018080403A1 (en) * 2016-10-25 2018-05-03 Tajfun Liv, Proizvodnja In Razvoj D.O.O. Foldable crane

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Publication number Priority date Publication date Assignee Title
SE402903B (sv) 1976-12-10 1978-07-24 Hiab Foco Ab Vid lastkranar fellbar kranarm
SE466911B (sv) * 1990-08-29 1992-04-27 Hiab Ab Vipparmskran
FI20030700A (fi) 2003-05-09 2004-11-10 Loglift Oy Ab Menetelmä nosturin puomiston ohjaamiseksi ja laitteisto menetelmän toteuttamiseksi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018080403A1 (en) * 2016-10-25 2018-05-03 Tajfun Liv, Proizvodnja In Razvoj D.O.O. Foldable crane

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