EP2789565B1 - Dispositif de fixation d'outil rotatif monté sur une grue - Google Patents

Dispositif de fixation d'outil rotatif monté sur une grue Download PDF

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Publication number
EP2789565B1
EP2789565B1 EP14450010.5A EP14450010A EP2789565B1 EP 2789565 B1 EP2789565 B1 EP 2789565B1 EP 14450010 A EP14450010 A EP 14450010A EP 2789565 B1 EP2789565 B1 EP 2789565B1
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EP
European Patent Office
Prior art keywords
rotator
fastening device
hydraulic lines
opening
hydraulic ducts
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.)
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Application number
EP14450010.5A
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German (de)
English (en)
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EP2789565A1 (fr
Inventor
Rochus Penz
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.)
Penz crane GmbH
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Penz crane GmbH
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Publication date
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Publication of EP2789565A1 publication Critical patent/EP2789565A1/fr
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Publication of EP2789565B1 publication Critical patent/EP2789565B1/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
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/005—Grab supports, e.g. articulations; Oscillation dampers; Orientation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
    • B66C13/14—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices to load-engaging elements or motors associated therewith
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/14—Grabs opened or closed by driving motors thereon
    • B66C3/16—Grabs opened or closed by driving motors thereon by fluid motors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3677—Devices to connect tools to arms, booms or the like allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets
    • E02F3/3681—Rotators
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2275—Hoses and supports therefor and protection therefor

Definitions

  • the present invention relates to a fastening device for a rotatably mounted on a crane arm tool comprising two mutually perpendicular, mutually vertically spaced hinge elements, namely a hanger ashtray and a funnelge theory and one of the hinge elements in the vertical direction spaced about a vertical axis of rotation free rotatable rotator, wherein the tool is fixed to the rotator, which fixing device for operating the tool a plurality of hydraulic lines from the crane arm is guided to provided on an upper side of the rotator fittings and wherein the rotor adjacent tantge theory as an open pivot with two spaced pivot points is trained.
  • a so-called rotator which is hydraulically operated, and which ensures the free rotation of the tool about a perpendicularly extending through the rotator axis of rotation of the rotator.
  • the tool in particular gripping tool can be precisely positioned and continuously opened and closed.
  • hydraulic lines must be guided between the crane arm and the rotator, which must be protected from any damage, in particular due to the high pressure of the hydraulic fluid, which is present in the interior of these hoses, inadvertent damage to the lines serious accidents can happen.
  • EP 1 448 471 B1 a fastening device for a tool on a crane arm, in which the hydraulic lines for the operation of the rotator are guided completely inside the fastening device and are also articulated on the top surface of the rotator.
  • all joints between the crane arm and the rotator are designed as open hinges and all hydraulic lines are therefore inside the Fastening device out.
  • a disadvantage of such a design is that the lines in this case must be kept relatively short and in particular an excess length due to the existing in the interior of the fixture small space is hardly or only partially possible, so that repairs to the lines or their mounting flanges to the fittings are hardly possible, and that, for example, after a twisting of the lines in any case to damage the hydraulic lines or tearing off the same, without a possibility to make a repair on site.
  • the EP 1 889 808 B1 describes a mounting device for tools on a crane arm, in which the hydraulic lines are hinged to the outer periphery of the rotator and then in the interior of the crane arm adjacent pivot joint, which is designed as an open pivot, so as a frictionless articulation of the hydraulic lines on the crane arm without To allow excessive excess length of the hydraulic lines to allow.
  • a disadvantage of this type of device is the articulation of the hydraulic lines on the outer circumference of the rotator, which can be easily damaged in harsh everyday operation, so that it often stops in operation due to the exchange or Neuanflanschens of hydraulic lines with the known disadvantages of leakage of hydraulic fluid , etc. can come.
  • the present invention now aims to provide a fastening device for a rotatably mounted on a crane arm tool available, in which the hydraulic lines are partially guided in the interior of the fastening device and, moreover, a sufficient excess length have, for example, to be able to remedy unintentional damage immediately and also to provide a design of the fastening device available in which a twisting or Vertwisten the hydraulic lines is held back with security and, moreover, no over the outer circumference of the fastening device protruding fixing elements are provided.
  • the fastening device is essentially characterized in that each extending through a center of the fittings for the plurality of hydraulic lines longitudinal axis with the axis of rotation of the rotator forms an acute angle, and that the rotator adjacent cross hanger is formed substantially U-shaped is and adjacent to a base of the U has a passage opening for the hydraulic lines.
  • the hydraulic lines can be surely and reliably led out from the inside of the fixing device without being kinked or by contact be damaged superficially with, for example, sharp side edges of the cross hanger.
  • the connecting pieces are arranged inclined to the vertical, have the hydraulic lines themselves have a corresponding inclination, and thus buckling of the lines under high pressure during operation, for example, during any pivotal and rotary movement of the fastening device is certainly withheld.
  • Such a design also makes it possible to guide the hydraulic lines substantially S-shaped from their connections on the crane arm to the terminals on the rotator, whereby a sufficient overlay is always present and in particular a twisting, Vertwisten or otherwise damaging the line with certainty is held back. Moreover, with such a training kinking of the lines is also refrained during the work anyway.
  • the passage opening formed adjacent to a base of the U makes it possible to guide hydraulic lines out of the interior of the fastening devices or of the cross-hanger such that they can on the one hand be made sufficiently long to reliably and reliably follow any movements of the entire fastening device and on the other hand can be summarized, for example, by bundling, so that the space requirement is minimized and damage to individual lines is safely withheld.
  • the fastening device is designed so that the extending through the center of the fittings for the plurality of hydraulic lines extending longitudinal axes are inclined in the direction of the passage opening for the hydraulic lines.
  • a particularly smooth and safe guidance of the hydraulic lines from the interior of the fastening device and thus to fear a subsequent articulation of the hydraulic lines on the crane arm without kinking succeeds according to the invention in that the acute angle between the axis of rotation of the rotator and extending through the center of the connecting longitudinal axes between 1 ° and 4 °. Due to the tight conditions in the interior of a fastening device, the choice of angle is essential and an inclination between 1 ° and 4 ° is sufficient to safely lead the hydraulic lines out of the interior of the fastening device and subsequently to the crane arm and at the same time damage the lines to avoid when leading out.
  • the invention is preferably developed so that the extending through the center of the connecting pins longitudinal axes of the passage opening further away from the connecting pieces include a larger apex angle with the axis of rotation of the rotator than the closer to the passage opening for hydraulic lines arranged fittings, it succeeds above all the hydraulic lines, in particular usually four hydraulic lines to steer so that they can still be bundled inside the fastening device or in the interior of Buchge vons and can be led out as a tube bundle through the passage opening in the U-shaped base of Buchge vons.
  • a bundling of the hose lines a risk of damage to the same is further reduced and in particular the risk that the hydraulic fluid under high pressure by cutting into the hydraulic lines or a tearing of the same are damaged significantly reduced.
  • the fastening device is formed so that the connecting pieces are formed inclined in a direction normal to the direction of the passage opening for hydraulic lines second direction, for example, the hydraulic lines not only in the direction of the passage opening in the Cross hanger be inclined, but also inclined to each other, so that in particular a tight bundling of the hydraulic lines is possible and thus on the one hand, the space requirement is lowered further, and on the other hand, the risk that the cables are damaged during operation, further reduced.
  • the fastening device is further developed so that the passage opening for hydraulic lines in the Cross hanger with rounded corners and at its the pivot point of the cross hanger facing side is formed substantially as a circle segment.
  • the passage opening for the hydraulic line in the funnelge von with rounded corners and at its the fulcrum of the Buchge vons facing side is formed substantially as a circular segment, the shape of the passage opening adapted substantially to the outer contour of a bundle of hydraulic lines, so that they are or the passage opening are securely received or is, without that they can be clamped, whereby the life of the hydraulic lines and thus the entire fastening device is further increased.
  • the fastening device is preferably designed so that the passage opening is formed with rounded edges, in particular smoothly polished rounded edges.
  • the passage opening is formed with rounded edges and in particular smooth polished, rounded edges, damage to the hydraulic lines is obstructed and also provided a kind of guide for the lines.
  • the fastening device according to the invention that the necessarily be protected from damage hydraulic lines, which are required for the operation of a tool mounted on a crane arm, safe and reliable on any axes of rotation and in particular on the mounting axes of the two joint elements, the rigid Joint lug and the funnelge monel can be passed and the device is designed so that they can neither scrub nor abut these axes of rotation and in particular that they can not be clamped or damaged in the axis of rotation, making a total of a safe and reliable functioning fastening device available can be, which ensures a particularly long service life compared to conventional fastening devices.
  • the fastening device 1 consists here of a first joint element, the rigid hanger tab 3, a second joint element, the cross hanger 4 and a rotator 5.
  • On the hanger tab 3 is hinged about a first horizontal axis 6, the cross hanger 4, which in turn via a horizontal
  • the hinge of Buchge vons 4 is designed as an open pivot, the axis 7 extends through two spaced pivot points 8, as in particular Fig. 2 is apparent.
  • the rotator 5 is freely rotatable about a vertical axis of rotation 9, so that a hinged to the rotator 5 tool is arbitrarily pivotable in any direction.
  • the hydraulic lines 12, which in the in Fig. 1 and Fig. 2 illustrated training are bundled inside the funnelge vons 4 are led out by an adjacent a base 13 of the substantially U-shaped cross hook 4 provided opening 14 from the interior of the funnelge vons 4 and fixed to corresponding provided on the crane arm 2 fittings 15 so that a closed, hydraulic connection between the crane arm 2 and the tool is formed.
  • the passage opening 14 is in this case formed, on the one hand, with rounded edges 16 and, on the other hand, has both rounded corners 17 and, on its side facing the fulcrum 8 of the cross-hanger 4, is designed essentially as a circle segment 18.
  • the length of the hydraulic lines 12 is in this case selected in particular as in Fig. 2 It is clearly apparent that even with any pivoting of the joint elements 3, 4 to each other excessive and unintentional tension of the hydraulic lines 12 is withheld safety. Likewise, a chafing of the hydraulic lines 12 in both the passage opening 14 and, for example, in the region of the axis of rotation 6 as well as in the region of the articulation on the crane arm 2 should be stopped with certainty to prevent destruction and damage of the hydraulic lines 12 during operation.
  • the connecting pieces 11 for hydraulic lines 12 are in this case formed so that they form an acute angle ⁇ with the vertical axis 9 of the rotator 5.
  • the connections 11 are in each case inclined in the direction of a vertical axis 9 running in the middle through the rotator 5, so that in particular the hydraulic lines 12 can be bundled quickly and reliably in order to damage them inside the cross-link 4 with certainty disregard injury.
  • the angle ⁇ is about 2.5 ° in each case. How this in particular from the synopsis of Fig.
  • the connecting pieces 11 are each formed inclined in two directions, namely in the direction of a virtual center of the rotator 5. All angles ⁇ are in the embodiments in Fig. 2 chosen about the same size, so that a completely symmetrical arrangement of the fittings 11 was selected.
  • Fig. 3 which merely shows a detail of the fastening device 2 of the Fig. 1 and 2 represents, namely the area in which the connecting pieces 11 are fixed to the rotator 5, a different design, in particular a different type of inclination of the connecting pieces 11 is selected.
  • all connecting pieces 11 are inclined in the direction of a passage opening 14 in the funnelge von 4 to the vertical.
  • the angle of inclination of all connecting pieces 11 is in this case selected to be about 2 °.
  • the hydraulic lines 12 are arranged so that they are arranged in the direction of a passage opening 14 substantially parallel to each other.
  • Fig. 4 which is the representation of Fig. 3 but is a 90 ° swung representation
  • the hydraulic lines 12 are inclined in a second direction, in the direction a virtually passing through the center line of the rotator 12 surface.
  • the hydraulic lines 12 are not only in the direction of the in the Fig. 3 to 5 Not shown passage opening 14 inclined, but further approached at least in pairs as far as that they can be bundled together in pairs before the passage through the passage opening 14, whereby also the damage of the hydraulic lines 12 during operation can be significantly reduced.
  • Fig. 5 which is a perspective view from above of the formations of the 3 and 4 is, it can be seen that the hydraulic lines 12 and thus also the connecting pieces 11 are inclined both in the direction of the passage opening 14, not shown in these figures, as well as in pairs to each other.
  • the hydraulic lines 12 may not only be guided in pairs, but that, for example, the connecting pieces 11 further spaced from the passage opening 14 and thus the hydraulic lines 12 may have a greater inclination of 4 ° to the vertical axis of rotation 9 than the connecting pieces 11 which are closer to the passage opening 14 are arranged horizontally.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)

Claims (7)

  1. Dispositif de fixation (1) pour un outil monté tournant sur une flèche de grue (2), comprenant deux éléments d'articulation, placés verticalement l'un sur l'autre et distants l'un de l'autre dans la direction verticale, à savoir une éclisse de suspension (3) et une suspension en croix (4), ainsi qu'un rotateur (5), tournant librement autour d'un axe de rotation vertical (9) et distant de l'éclisse de suspension et de la suspension en croix (4) dans la direction verticale, l'outil étant fixé sur le rotateur (5), dispositif de fixation (1) dans lequel, pour l'actionnement de l'outil, une pluralité de conduites hydrauliques (12) est guidée de la flèche de grue (2) en direction de raccords (11) prévus sur une face supérieure du rotateur (5), et la suspension en croix (4), voisine du rotateur (5), étant réalisée sous forme d'articulation tournante ouverte avec deux points de rotation (8) distants l'un de l'autre, caractérisé en ce que chaque axe longitudinal, passant par un centre des raccords (11) pour la pluralité de conduites hydrauliques (12), forme avec l'axe de rotation (9) du rotateur (5) un angle aigu (α), et que la suspension en croix (4), voisine du rotateur (5), est réalisée essentiellement en U et présente, au voisinage d'une base (13) du U, une ouverture de passage (14) pour les conduites hydrauliques (12).
  2. Dispositif de fixation (1) selon la revendication 1, caractérisé en ce que l'axe longitudinal, passant par le centre des raccords (11) pour la pluralité de conduites hydrauliques (12), est réalisé incliné en direction de l'ouverture de passage (14) pour les conduites hydrauliques (12).
  3. Dispositif de fixation (1) selon l'une des revendications 1 et 2, caractérisé en ce que l'angle aigu (α) entre l'axe de rotation (9) du rotateur (5) et les axes longitudinaux passant par le centre des raccords (11) est compris entre 1° et 4°.
  4. Dispositif de fixation (1) selon l'une des revendications 1, 2 et 3, caractérisé en ce que les axes longitudinaux, passant par le centre des raccords (11), des raccords (11) plus distants de l'ouverture de passage (14), forment avec l'axe de rotation (9) du rotateur (5) un angle aigu (α) plus grand que les raccords (14) disposés plus près de l'ouverture de passage (14) pour des conduites hydrauliques (12).
  5. Dispositif de fixation (1) selon l'une des revendications 1 à 4, caractérisé en ce que les raccords (11) sont réalisés inclinés dans une seconde direction, normale à la direction dirigée vers l'ouverture de passage (14) pour des conduites hydrauliques (12).
  6. Dispositif de fixation (1) selon l'une des revendications 1 à 5, caractérisé en ce que l'ouverture de passage (14) pour des conduites hydrauliques (12) est réalisée dans la suspension en croix (4), voisine du rotateur (5), avec des coins arrondis (17), ainsi qu'essentiellement en forme de segment de cercle (18) sur son côté tourné vers le point de rotation (8) de la suspension en croix (4).
  7. Dispositif de fixation (1) selon l'une des revendications 1 à 6, caractérisé en ce que l'ouverture de passage (14) est réalisée avec des arêtes arrondies (16), en particulier avec des arêtes (17) arrondies polies lisses.
EP14450010.5A 2013-04-08 2014-03-31 Dispositif de fixation d'outil rotatif monté sur une grue Active EP2789565B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1172013 2013-04-08

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EP2789565A1 EP2789565A1 (fr) 2014-10-15
EP2789565B1 true EP2789565B1 (fr) 2015-09-09

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10100487B2 (en) * 2013-07-10 2018-10-16 Tigercat Industries Inc. Hydraulic assembly and logging equipment using same
EP2824059B1 (fr) * 2013-07-10 2021-03-03 Tigercat Industries Inc. Équipement utilisant un ensemble hydraulique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29714983U1 (de) * 1997-08-21 1997-10-16 Atlas Weyhausen Gmbh Einrichtung zum hydraulischen Drehen und Aktivieren des Arbeitswerkzeuges eines Krans o.dgl.
SE520498E8 (sv) 2001-11-26 2015-10-20 Komatsu Forest Ab Anordning för upphängning av ett vridbart arbetsredskap
DK1889808T3 (da) 2006-04-03 2009-12-07 Epsilon Kran Gmbh Kranarm med en fastgörelsesindretning til arbejdsredskaber
SE535793C2 (sv) * 2010-04-13 2012-12-18 Indexator Group Ab Anordning för styrning av slangar och/eller kablar

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