EP2906493A1 - Crane, in particular overhead crane or gantry crane, comprising at least two crane girders - Google Patents

Crane, in particular overhead crane or gantry crane, comprising at least two crane girders

Info

Publication number
EP2906493A1
EP2906493A1 EP13771544.7A EP13771544A EP2906493A1 EP 2906493 A1 EP2906493 A1 EP 2906493A1 EP 13771544 A EP13771544 A EP 13771544A EP 2906493 A1 EP2906493 A1 EP 2906493A1
Authority
EP
European Patent Office
Prior art keywords
crane
running rail
girders
flange
struts
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
EP13771544.7A
Other languages
German (de)
French (fr)
Other versions
EP2906493B1 (en
Inventor
Christoph Passmann
Richard KREISNER
Thomas SCHLIERBACH-KNOBLOCH
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.)
Demag Cranes and Components GmbH
Original Assignee
Terex MHPS 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 MHPS GmbH filed Critical Terex MHPS GmbH
Publication of EP2906493A1 publication Critical patent/EP2906493A1/en
Application granted granted Critical
Publication of EP2906493B1 publication Critical patent/EP2906493B1/en
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
    • B66C6/00—Girders, or track-supporting structures, specially adapted for cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries

Definitions

  • Crane in particular overhead crane or gantry crane, with at least two crane girders
  • the invention relates to a crane, in particular bridge crane or gantry crane, with at least two horizontally extending in a longitudinal direction and designed as truss crane girders, each comprising a top flange and on which a trolley with a hoist is movable.
  • the crane girders are designed as truss girders and each comprise a top chord and a bottom chord, which are each aligned horizontally and parallel to each other, and the upper and lower chords connecting vertically extending rod-shaped posts and diagonally extending rod-shaped struts.
  • German utility model DE 1 971 794 U describes a further two-girder bridge crane, the horizontal crane girder as similar
  • Truss supports are formed and each plate-shaped upper straps, bar-shaped lower straps and rod-shaped posts include. On the upper straps a rail for a trolley is attached in the region of their inner edges.
  • German patent DE 37 31 245 C2 is a box girder
  • Box girder comprises a top chord and a bottom chord, which are connected by two side walls.
  • the top flange is formed by a formed as a T-profile beam roll profile with a horizontal flange and a vertical web, which projects inwardly into the box girder and forms a stiffening rib for the flange.
  • On the flange of the T-profile support is centrally and above the web a longitudinally extending and a rectangular cross-section comprising rail welded from a solid material.
  • German Utility Model DE 66 04 483 U discloses a two-girder bridge crane with two crane girders designed as box girders.
  • the box girders are each composed of two double-T girders.
  • upper and lower flanges of the double-T-beams are connected to each other, distributed over the entire length thereof each have a plurality of belt plates spaced from each other and welded to the upper and lower flanges.
  • For the upper flanges can be used instead of a variety of belt plates and a one-piece, continuous Obergurtplatte.
  • posts and struts of the truss girder are arranged with their upper ends between the two webs of the U-profiles and clamped over the screw.
  • the invention has for its object to provide a crane, in particular overhead crane or gantry crane, with improved crane girders ready.
  • the crane girder advantageously improved by the fact that the upper straps are each composed of two Obergurtprofilen , which are connected to each other via a running rail for the trolley.
  • the Obergurtprofile each comprise a horizontal flange and for connecting the Obergurtprofile one of the upper straps each of the running rail is mounted on the upper sides of two adjacent flanges.
  • the running rail is aligned centrally with the upper girder profiles.
  • Solid material is made.
  • the running rail has a rectangular cross-section.
  • commercially available steel bars can also be used for the rails and the manufacture of the crane can be simplified.
  • the assembly is also simplified in that the
  • Running rail is welded to the upper flange.
  • the upper flange profiles are designed as angle-profile support and each comprise a subsequent to the flange vertical web.
  • conventional L-profile carrier can be used for the production of the upper straps.
  • the truss designed as truss crane beams include struts and posts, each upper
  • FIG. 1 shows a bridge crane designed as a two-girder crane with two
  • FIG. 2 shows a cross-sectional view of one of the two crane girders according to FIG. 1 and FIG.
  • FIG. 1 shows a crane 1 designed as a two-girder bridge crane.
  • the crane 1 comprises two crane girders 2 designed as truss girders which each extend with an identical length L in their longitudinal direction LR and are aligned horizontally, parallel and spaced apart from each other.
  • first and second trolleys 7, 8 are fixed, so that in the plan view, a frame is formed.
  • the trolleys 7, 8 of the crane 1 in a horizontal direction F transverse to the longitudinal direction LR of the crane girder 2 on rails, not shown, can be moved.
  • the rails are usually arranged vertically with respect to a floor and can be raised for this purpose, for example via a suitable support structure or attached to opposite building walls.
  • first chassis 7 by a first electric motor 7a and the second chassis 8 by a second
  • Crane beam 2 is movable.
  • the trolley 9 runs on the upper chords 3 of the two crane girders 2.
  • a running rail 13 is provided with a corresponding running surface 13a, so that the crane trolley 9 is arranged between the crane girders 2.
  • the trolley 9 arranged centrally between crane girders 2 can be moved between the two crane girders 2 and between the trolleys 7, 8.
  • a load-receiving means of the trolley 9 arranged cable between both crane girders 2 can be lowered or raised.
  • the crane 1 also includes a Crane control 10 and a suspension control switch 1 1 connected thereto, about which the crane 1 or the electric motors 7a, 8a and the trolley 9 can be controlled and operated separately from each other with the cable.
  • the truss structures of both crane girders 2 have an identical construction and essentially comprise in each case a top flange 3, a bottom flange 4, diagonally extending struts 5 and vertical posts 6.
  • struts 5 are generally considered those elements of a truss structure which have an oblique or diagonal course exhibit.
  • the struts 5 of a truss structure differ from the elements which run exclusively vertically and are referred to as posts 6.
  • the upper flange 3 and the lower flange 4 each extend for the most part in a straight line, spaced from each other and except for at the opposite ends of the crane girder 2 parallel in the longitudinal direction LR between the chassis 7, 8.
  • the upper flange 3 and the lower flange 4 of each crane girder. 2 vertically spaced from each other.
  • FIG. 2 shows a cross-sectional view of one of the two crane girders 2, with reference to which the closer construction of the crane girders 2 will be explained.
  • Each upper flange 3 is composed of two arranged in a horizontal plane and horizontally spaced apart first and second Obergurtprofilen 3d, 3e and welded onto the upper flange 3d, 3e running rail 13 for the trolley 9 together.
  • the upper belt profiles 3d, 3e and the running rail 13 in this case run parallel in the longitudinal direction LR of the crane girder 2.
  • the two upper flange profiles 3d, 3e are formed by an L or angle profile carrier, which in each case comprises a vertical web 3a and a horizontal flange 3c arranged at right angles thereto.
  • the lower flange 4 is also analogous to the upper flange 3 of two L or angle profile carriers, namely a first lower flange 4d and a second lower flange 4e
  • Each Untergurtprofil 4d, 4e therefore also includes a
  • FIG. 1 shows that the upper flange 3 and the lower flange 4 are connected to one another via a plurality of respective flat-shaped struts 5 and posts 6.
  • the sheet-like struts 5 or surface struts and posts 6 preferably take forces in the direction of their longitudinal axis and thus in the
  • rods or rod-shaped posts and struts in that their thickness dimensions are substantially smaller than the areal extent of the disc determining length and width dimensions.
  • sheet-like struts 5 can also be used as surface struts or
  • the struts 5 are formed as a sheet metal profile with a main surface 5a having a substantially rectangular cross-section and in particular
  • planar posts 6 formed mirror-symmetrically with respect to their longitudinal axis LA, wherein the longitudinal sides are folded over to increase the buckling rigidity, at least in a central region in the form of auxiliary surfaces 5b.
  • the basic structure of the planar posts 6 corresponds - with correspondingly adapted dimensions - substantially the structure of the sheet-like struts 5.
  • each extends in the planar posts 6 with a main surface 6a transverse to the longitudinal direction LR of the crane girder 2 and at right angles to this folded auxiliary surfaces 6b in this longitudinal direction LR.
  • the sheet-like posts 6 can also be arranged or aligned such that the auxiliary surfaces 6b point towards or away from one of the ends of the crane girder 2.
  • each crane girder 2 is at the opposite Ends of the upper flange 3 and the lower flange 4 via an adapter 12 completed.
  • the upper flange 3 and the lower flange 4 are connected to form a frame.
  • a first planar post 6 is arranged, which forms a common bottom node UK on the lower girdle 4 with a first strut 5 connected to the lower girder 4.
  • the first strut 5 extends in the longitudinal direction LR inclined at an angle a2 in the direction of the upper flange 3 and is fixed there.
  • the angle of attack a2 is in this case enclosed by the first strut 5 and ending in the lower node UK post 6.
  • the first planar post 6 is arranged, which forms a common bottom node UK on the lower girdle 4 with a first strut 5 connected to the lower girder 4.
  • the first strut 5 extends in the longitudinal direction LR inclined at an angle a2 in the direction of the upper flange 3 and is fixed there.
  • Incidence angle a2 in a range of 35 ° to 55 ° and is more preferably 45 °.
  • a second strut 5 which extends obliquely below the angle of attack a2 down to the next lower node UK on the lower flange 4. This is repeated until the struts 5 reach the opposite end of the crane girder 2.
  • each strut 5 forms with a planar post 6 in the region of
  • Angle of attack a2 is used. As a result, the upper rail 3 carrying the running rail 13 is reinforced against bending.
  • the struts 5 are aligned within the truss structure of each crane girder 2 so that each of their major surface 5a extends transversely to the longitudinal direction LR of the crane girder 2.
  • the struts 5 are welded with their lower first strut ends 5 g to the lower flange 4.
  • an upper recess 5i, 6i are provided on the struts 5 and the posts 6, into which the webs 3a of the upper run profiles 3d, 3e protrude and there with longitudinal sides of the upper recess 5i, 6i abut and in this area with the struts 5 and the post 6 are welded (see also Figure 2).
  • the horizontal flanges 3c of the upper flange profiles 3d, 3e hereby point outwards and thus away from the upper recesses 5i, 6i of the struts 5 or posts 6.
  • the planar posts 6 are 6g with their lower first post end
  • a lower recess 6e arranged therein is pushed onto the webs 4a of the lower belt profiles 4d, 4e and welded thereto. It is also conceivable to provide a separate lower recess 6e in the first post end 6g in the same way as in the struts 5 for each web 4a. Seen transversely to the longitudinal direction LR of the crane girder 2 is between the webs 3a of the upper flange 3 so only one strut 5 and a post 6 is provided.
  • FIG. 2 shows that two strut arms 5j are formed at the upper second strut end 5h in the region of the upper corners of the struts 5, centered on the upper second strut end 5h and centered with respect to the longitudinal axis LA of the strut 5 is an upper recess 5i a substantially rectangular cross-section in the main surface 5a is provided.
  • the upper recess 5i extends from the upper second strut end 5h parallel to the longitudinal axis LA, the opposite longitudinal sides of the upper
  • the upper recess 5i is viewed transversely to the longitudinal axis LA dimensioned so that at least the two vertically downwardly facing webs 3a of the two Obergurtprofile 3d, 3e dip into the upper recess 5i or can be pushed into it. It can also be seen from Figure 2 that the webs 3a of the two Obergurtprofile 3d, 3e dip into the upper recess 5i or can be pushed into it. It can also be seen from Figure 2 that the webs 3a of the two
  • Welded joint is between the upper flange 3 and the upper second
  • Striving 5h provided, especially in the form of horizontal
  • Recesses 5i extend in the direction of the upper second strut end 5h and here form a central third strut arm 5j.
  • the central strut arm 5j formed by the main surface 5a can fall back there in the direction of the longitudinal axis LA relative to the end faces of the strut feet 5f or the end faces of the two outer strut arms 5j, provided that the recesses 5e, 5i have at least one for receiving or positioning the webs 3a, 4a of the upper and lower chords 3, 4 have sufficiently deep slot-shaped cross-section.
  • the webs 3a of the upper belt profiles 3d, 3e are preferably arranged closer to one another and thus less far from the longitudinal axes LA of the struts 5 than the webs 4a of the lower belt profiles 4d, 4e.
  • the upper flange profiles 3d, 3e of each upper flange 3 of the two crane girders 2 can be connected to one another via the running rail 13, also shown in FIG. 2, on upper sides facing away from the webs 3a.
  • a corresponding running rail 13 is welded onto the upper sides of the upper chord profiles 3d, 3e.
  • the rails 13 have a rectangular cross-section and form on their upper sides in each case one of the running surfaces 13a for the chassis of the trolley 9, not shown here.
  • Each running rail 13 is preferably centered or centered with respect to the two parallel webs 3a of the corresponding
  • Obergurtprofile 3d, 3e and thus also centered with respect to the longitudinal axis LA of the strut 5 is arranged.
  • the running rail 13 is dimensioned such that it bridges the distance between the webs 3a dipping into the upper recess 5i and with the flanges 3c of the upper run profiles 3d, 3e along the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Jib Cranes (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Abstract

The invention relates to a crane (1), in particular an overhead crane or gantry crane, comprising at least two crane girders (2) which extend horizontally in a longitudinal direction (LR), are designed as trussed girders and each of which comprises an upper chord (3). A crane trolley (9) comprising lifting tackle can travel on said crane girders. Each upper chord (3) is comprised of two upper chord profiles (3d, 3e) which are interconnected by means of a running rail (13) for the crane trolley (9).

Description

Kran, insbesondere Brückenkran oder Portalkran, mit mindestens zwei Kranträgern  Crane, in particular overhead crane or gantry crane, with at least two crane girders
Die Erfindung betrifft einen Kran, insbesondere Brückenkran oder Portalkran, mit mindestens zwei sich horizontal in einer Längsrichtung erstreckenden und als Fachwerkträger ausgebildeten Kranträgern, die jeweils einen Obergurt umfassen und an denen eine Krankatze mit einem Hebezeug verfahrbar ist. The invention relates to a crane, in particular bridge crane or gantry crane, with at least two horizontally extending in a longitudinal direction and designed as truss crane girders, each comprising a top flange and on which a trolley with a hoist is movable.
Aus der deutschen Patentschrift DE 260030 ist ein sogenannter Zwei-Träger- Portalkran mit zwei horizontalen Kranträgern und zwei vertikalen Stützträgern bekannt, die einen Portalrahmen des Portalkrans bilden. Die Kranträger verlaufen parallel und mit Abstand zueinander. An unteren Enden der Stützträger ist jeweils ein Fahrwerk angeordnet, über die der Portalkran in einer quer zur Längsrichtung der Kranträger verlaufenden Fahrtrichtung verfahrbar ist. Auf und entlang der Kranträger ist eine Krankatze mit einem Seilzug verfahrbar. Entsprechend der Bauweise als Zwei-Träger-Kran wird ein Lastaufnahmemittel des auf der Krankatze angeordneten Seilzugs zwischen beiden Kranträgern abgelassen beziehungsweise angehoben. Die Kranträger sind als Fachwerkträger ausgebildet und umfassen jeweils einen Obergurt und einen Untergurt, die jeweils horizontal und parallel zueinander ausgerichtet sind, und die Ober- und Untergurte verbindende vertikal verlaufende stabförmige Pfosten sowie diagonal verlaufende stabförmige Streben. From the German patent DE 260030 a so-called two-gantry gantry crane with two horizontal crane girders and two vertical support beams is known which form a portal frame of the gantry crane. The crane girders run parallel and at a distance from each other. At the lower ends of the support beams a chassis is arranged in each case, via which the gantry crane is movable in a direction transverse to the longitudinal direction of the crane girder travel direction. On and along the crane girder is a trolley with a cable travels. According to the construction as a two-girder crane, a load-receiving means of the cable crane arranged on the cable between both crane girders is lowered or raised. The crane girders are designed as truss girders and each comprise a top chord and a bottom chord, which are each aligned horizontally and parallel to each other, and the upper and lower chords connecting vertically extending rod-shaped posts and diagonally extending rod-shaped struts.
Die deutsche Gebrauchsmusterschrift DE 1 971 794 U beschreibt einen weiteren Zwei-Träger-Brückenkran, dessen horizontale Kranträger gleichartig als The German utility model DE 1 971 794 U describes a further two-girder bridge crane, the horizontal crane girder as similar
Fachwerkträger ausgebildet sind und jeweils plattenförmige Obergurte, stabförmige Untergurte und stabförmige Pfosten umfassen. Auf den Obergurten ist im Bereich ihrer inneren Ränder jeweils eine Schiene für eine Krankatze befestigt. Truss supports are formed and each plate-shaped upper straps, bar-shaped lower straps and rod-shaped posts include. On the upper straps a rail for a trolley is attached in the region of their inner edges.
Aus der deutschen Patentschrift DE 37 31 245 C2 ist ein als Kastenträger From German patent DE 37 31 245 C2 is a box girder
ausgebildeter Kranträger für einen Zwei-Träger-Brückenkran bekannt. Der trained crane carrier for a two-girder bridge crane known. Of the
Kastenträger umfasst einen Obergurt und einen Untergurt, die über zwei Seitenwände miteinander verbunden sind. Der Obergurt wird von einem als T-Profil-Träger ausgebildeten Walzprofil mit einem horizontalen Flansch und einem vertikalen Steg gebildet, der nach innen in den Kastenträger hineinragt und eine Versteifungsrippe für den Flansch ausbildet. Auf dem Flansch des T-Profil-Trägers ist mittig und oberhalb des Stegs eine in Längsrichtung verlaufende und einen rechteckigen Querschnitt aufweisende Schiene aus einem Vollmaterial aufgeschweißt. Box girder comprises a top chord and a bottom chord, which are connected by two side walls. The top flange is formed by a formed as a T-profile beam roll profile with a horizontal flange and a vertical web, which projects inwardly into the box girder and forms a stiffening rib for the flange. On the flange of the T-profile support is centrally and above the web a longitudinally extending and a rectangular cross-section comprising rail welded from a solid material.
Aus der deutschen Gebrauchsmusterschrift DE 66 04 483 U ist ein Zwei-Träger- Brückenkran mit zwei als Kastenträgern ausgebildeten Kranträgern bekannt. Die Kastenträger sind jeweils aus zwei Doppel-T-Trägern zusammengesetzt. Hierfür sind obere und untere Flansche der Doppel-T-Träger miteinander verbunden, indem über deren gesamte Länge verteilt jeweils eine Vielzahl von Gurtplatten voneinander beabstandet angeordnet und mit den oberen beziehungsweise unteren Flanschen verschweißt. Für die oberen Flansche kann anstatt einer Vielzahl von Gurtplatten auch eine einteilige, durchgehende Obergurtplatte verwendet werden. German Utility Model DE 66 04 483 U discloses a two-girder bridge crane with two crane girders designed as box girders. The box girders are each composed of two double-T girders. For this purpose, upper and lower flanges of the double-T-beams are connected to each other, distributed over the entire length thereof each have a plurality of belt plates spaced from each other and welded to the upper and lower flanges. For the upper flanges can be used instead of a variety of belt plates and a one-piece, continuous Obergurtplatte.
Aus der deutschen Offenlegungsschrift DE 22 39 573 A ist ein Fachwerkträger bekannt. Ein Obergurt des Fachwerkträgers ist aus zwei U-Profilen From German patent application DE 22 39 573 A a truss girder is known. An upper flange of the truss girder is made of two U-profiles
zusammengesetzt, indem deren einander zugewandten Stege miteinander verschraubt sind. Hierbei sind Pfosten und Streben des Fachwerkträgers mit ihren oberen Enden zwischen den beiden Stegen der U-Profile angeordnet und über die Schraubverbindung festgeklemmt. assembled by their facing webs are screwed together. Here, posts and struts of the truss girder are arranged with their upper ends between the two webs of the U-profiles and clamped over the screw.
Der Erfindung liegt die Aufgabe zugrunde, einen Kran, insbesondere Brückenkran oder Portalkran, mit verbesserten Kranträgern bereit zu stellen. The invention has for its object to provide a crane, in particular overhead crane or gantry crane, with improved crane girders ready.
Diese Aufgabe wird durch einen Kran, insbesondere Brückenkran oder Portalkran, mit den Merkmalen des Anspruchs 1 gelöst. In den Unteransprüchen 2 bis 9 sind vorteilhafte Ausgestaltungen der Erfindung angegeben. This object is achieved by a crane, in particular bridge crane or gantry crane, with the features of claim 1. In the dependent claims 2 to 9 advantageous embodiments of the invention are given.
Erfindungsgemäß werden bei einem Kran, insbesondere Brückenkran oder According to the invention in a crane, in particular bridge crane or
Portalkran, mit mindestens zwei sich horizontal in einer Längsrichtung erstreckenden und als Fachwerkträger ausgebildeten Kranträgern, die jeweils einen Obergurt umfassen und an denen eine Krankatze mit einem Hebezeug verfahrbar ist, die Kranträger in vorteilhafter Weise dadurch verbessert, dass die Obergurte jeweils aus zwei Obergurtprofilen zusammengesetzt sind, die über eine Laufschiene für die Krankatze miteinander verbunden sind. Durch einen derartigen Aufbau ist eine besonders einfache Montage der Kranträger beziehungsweise des Krans möglich. Somit kann für den Obergurt handelsüblicher, herkömmlicher Profilstahl verwendet werden, aus dem in fertigungstechnisch einfacher Weise durch bloße Verbindung mit einer entsprechenden Laufschiene der Obergurt hergestellt wird. Gantry crane, with at least two horizontally extending in a longitudinal direction and trained as truss girders, each comprising a top flange and where a trolley with a hoist is movable, the crane girder advantageously improved by the fact that the upper straps are each composed of two Obergurtprofilen , which are connected to each other via a running rail for the trolley. By such a construction, a particularly simple assembly of the crane girder or the crane is possible. Thus, commercially available, conventional section steel can be used for the upper belt, from the manufacturing technology in a simple manner by mere connection with a corresponding running rail of the upper belt is made.
In konstruktiv einfacher Bauweise ist vorgesehen, dass die Obergurtprofile jeweils einen horizontalen Flansch umfassen und zur Verbindung der Obergurtprofile eines der Obergurte jeweils die Laufschiene auf Oberseiten zweier benachbarter Flansche befestigt ist. In a structurally simple design is provided that the Obergurtprofile each comprise a horizontal flange and for connecting the Obergurtprofile one of the upper straps each of the running rail is mounted on the upper sides of two adjacent flanges.
In vorteilhafter Weise ist weiterhin vorgesehen, dass in Längsrichtung des Kranträgers gesehen die Laufschiene mittig zu den Obergurtprofilen ausgerichtet ist. In an advantageous manner, it is furthermore provided that, seen in the longitudinal direction of the crane girder, the running rail is aligned centrally with the upper girder profiles.
Des Weiteren wirkt es sich vorteilhaft auf die Tragfähigkeit des Krans und der auf den Laufschienen ablaufenden Krankatze aus, dass die Laufschiene aus einem Furthermore, it has an advantageous effect on the carrying capacity of the crane and running on the rails trolley, that the running rail of a
Vollmaterial hergestellt ist. In konstruktiv einfacher Bauweise ist vorgesehen, dass die Laufschiene einen rechteckigen Querschnitt aufweist. Somit können auch für die Laufschienen handelsübliche Stahlstäbe verwendet und die Herstellung des Krans vereinfacht werden. In vorteilhafter Weise wird die Montage auch dadurch vereinfacht, dass die Solid material is made. In a structurally simple design is provided that the running rail has a rectangular cross-section. Thus, commercially available steel bars can also be used for the rails and the manufacture of the crane can be simplified. Advantageously, the assembly is also simplified in that the
Laufschiene auf die Obergurtprofile aufgeschweißt ist. Running rail is welded to the upper flange.
Des Weiteren kann in vorteilhafter Weise vorgesehen sein, dass die Obergurtprofile als Winkel-Profil-Träger ausgebildet sind und jeweils einen sich an den Flansch anschließenden vertikalen Steg umfassen. Somit können in besonders einfacher Weise herkömmliche L-Profil-Träger zur Herstellung der Obergurte verwendet werden. Furthermore, it may be provided in an advantageous manner that the upper flange profiles are designed as angle-profile support and each comprise a subsequent to the flange vertical web. Thus, in a particularly simple manner conventional L-profile carrier can be used for the production of the upper straps.
Ein zusätzlicher Vorteil besteht darin, dass die vertikalen Stege parallel zueinander verlaufen, über einen Spalt voneinander beabstandet sind und der Spalt von der Laufschiene überbrückt ist. An additional advantage is that the vertical webs are parallel to each other, spaced apart by a gap and the gap is bridged by the running rail.
In konstruktiv einfacher Bauweise ist vorgesehen, dass die als Fachwerkträger ausgebildeten Kranträger Streben und Pfosten umfassen, die jeweils obere In a structurally simple design is provided that the truss designed as truss crane beams include struts and posts, each upper
Aussparungen aufweisen, in die die vertikalen Stege hinein ragen. Ein Ausführungsbeispiel der Erfindung wird anhand der Zeichnungen näher erläutert. Es zeigen: Figur 1 einen als Zwei-Träger-Kran ausgebildeten Brückenkran mit zwei Have recesses into which the vertical webs protrude. An embodiment of the invention will be explained in more detail with reference to the drawings. FIG. 1 shows a bridge crane designed as a two-girder crane with two
erfindungsgemäßen Kranträgern und Crane beams according to the invention and
Figur 2 eine Querschnittsansicht eines der beiden Kranträger gemäß Figur 1 und  FIG. 2 shows a cross-sectional view of one of the two crane girders according to FIG. 1 and FIG
Die nachfolgend anhand eines Brückenkrans vorgenommenen Erläuterungen gelten entsprechend auch für einen Portalkran. The explanations given below on the basis of a bridge crane also apply accordingly to a gantry crane.
Die Figur 1 zeigt einen als Zwei-Träger-Brückenkran ausgebildeten Kran 1. Der Kran 1 umfasst zwei als Fachwerkträger ausgebildete Kranträger 2, die sich jeweils mit einer identischen Länge L in ihrer Längsrichtung LR erstrecken und hierbei horizontal, parallel und voneinander beabstandet ausgerichtet sind. An den sich gegenüber liegenden Enden der beiden Kranträger 2 sind erste und zweite Fahrwerke 7, 8 befestigt, so dass in der Draufsicht ein Rahmen ausgebildet wird. Über die Fahrwerke 7, 8 ist der Kran 1 in einer horizontalen Fahrtrichtung F quer zur Längsrichtung LR der Kranträger 2 auf nicht dargestellten Schienen verfahrbar. Die Schienen sind üblicherweise gegenüber einem Boden hochliegend angeordnet und können hierfür beispielsweise über eine geeignete Tragkonstruktion aufgeständert oder an sich gegenüberliegenden Gebäudewänden befestigt sein. Um den Kran 1 FIG. 1 shows a crane 1 designed as a two-girder bridge crane. The crane 1 comprises two crane girders 2 designed as truss girders which each extend with an identical length L in their longitudinal direction LR and are aligned horizontally, parallel and spaced apart from each other. At the opposite ends of the two crane girder 2 first and second trolleys 7, 8 are fixed, so that in the plan view, a frame is formed. About the trolleys 7, 8 of the crane 1 in a horizontal direction F transverse to the longitudinal direction LR of the crane girder 2 on rails, not shown, can be moved. The rails are usually arranged vertically with respect to a floor and can be raised for this purpose, for example via a suitable support structure or attached to opposite building walls. To the crane 1
beziehungsweise dessen Kranträger 2 zu verfahren, wird das erste Fahrwerk 7 von einem ersten Elektromotor 7a und das zweite Fahrwerk 8 von einem zweiten or to move the crane carrier 2, the first chassis 7 by a first electric motor 7a and the second chassis 8 by a second
Elektromotor 8a angetrieben. Auf die beiden Kranträger 2 ist eine Krankatze 9 mit einem als Seilzug ausgebildeten Hebezeug aufgesetzt, die über weitere Fahrwerke quer zur Fahrtrichtung F des Krans 1 und entlang der Längsrichtung LR der Electric motor 8a driven. On the two crane girder 2 a trolley 9 is fitted with a trained as a cable hoist, the other transverse gears to the direction of travel F of the crane 1 and along the longitudinal direction of the LR
Kranträger 2 verfahrbar ist. Die Krankatze 9 läuft auf den Obergurten 3 der beiden Kranträger 2 ab. Hierfür ist, vorzugsweise mittig, auf jedem der beiden Obergurte 3 eine Laufschiene 13 mit einer entsprechenden Lauffläche 13a vorgesehen, so dass die Krankatze 9 zwischen den Kranträgern 2 angeordnet ist. Dementsprechend kann die mittig zwischen Kranträgern 2 angeordnete Krankatze 9 zwischen den beiden Kranträgern 2 sowie zwischen den Fahrwerken 7, 8 verfahren werden. Hierbei ist ein Lastaufnahmemittel des an der Krankatze 9 angeordneten Seilzugs zwischen beiden Kranträgern 2 absenkbar beziehungsweise anhebbar. Der Kran 1 umfasst zudem eine Kransteuerung 10 und einen hiermit verbundenen Hängesteuerschalter 1 1 , worüber der Kran 1 beziehungsweise die Elektromotoren 7a, 8a sowie die Krankatze 9 mit dem Seilzug getrennt voneinander angesteuert und bedient werden können. Die Fachwerkkonstruktionen beider Kranträger 2 weisen einen identischen Aufbau auf und umfassen im Wesentlichen jeweils einen Obergurt 3, einen Untergurt 4, diagonal verlaufende Streben 5 und vertikale Pfosten 6. Hierbei werden als Streben 5 allgemein diejenigen Elemente einer Fachwerkkonstruktion angesehen, die einen schrägen beziehungsweise diagonalen Verlauf aufweisen. Dadurch unterscheiden sich die Streben 5 einer Fachwerkkonstruktion von den Elementen, die ausschließlich vertikal verlaufen und als Pfosten 6 bezeichnet werden. Crane beam 2 is movable. The trolley 9 runs on the upper chords 3 of the two crane girders 2. For this purpose, preferably in the center, on each of the two upper straps 3 a running rail 13 is provided with a corresponding running surface 13a, so that the crane trolley 9 is arranged between the crane girders 2. Accordingly, the trolley 9 arranged centrally between crane girders 2 can be moved between the two crane girders 2 and between the trolleys 7, 8. Here, a load-receiving means of the trolley 9 arranged cable between both crane girders 2 can be lowered or raised. The crane 1 also includes a Crane control 10 and a suspension control switch 1 1 connected thereto, about which the crane 1 or the electric motors 7a, 8a and the trolley 9 can be controlled and operated separately from each other with the cable. The truss structures of both crane girders 2 have an identical construction and essentially comprise in each case a top flange 3, a bottom flange 4, diagonally extending struts 5 and vertical posts 6. Here, struts 5 are generally considered those elements of a truss structure which have an oblique or diagonal course exhibit. As a result, the struts 5 of a truss structure differ from the elements which run exclusively vertically and are referred to as posts 6.
Der Obergurt 3 und der Untergurt 4 erstrecken sich jeweils größtenteils geradlinig, voneinander beabstandet und bis auf an den sich gegenüberliegenden Enden der Kranträger 2 parallel in der Längsrichtung LR zwischen den Fahrwerken 7, 8. Hierbei sind der Obergurt 3 und der Untergurt 4 jedes Kranträgers 2 vertikal voneinander beabstandet. The upper flange 3 and the lower flange 4 each extend for the most part in a straight line, spaced from each other and except for at the opposite ends of the crane girder 2 parallel in the longitudinal direction LR between the chassis 7, 8. Here, the upper flange 3 and the lower flange 4 of each crane girder. 2 vertically spaced from each other.
Die Figur 2 zeigt eine Querschnittsansicht eines der beiden Kranträger 2, anhand der der nähere Aufbau der Kranträger 2 erläutert wird. FIG. 2 shows a cross-sectional view of one of the two crane girders 2, with reference to which the closer construction of the crane girders 2 will be explained.
Jeder Obergurt 3 setzt sich aus zwei in einer horizontalen Ebene angeordneten und horizontal voneinander beabstandeten ersten und zweiten Obergurtprofilen 3d, 3e und der auf die Obergurtprofile 3d, 3e aufgeschweißten Laufschiene 13 für die Krankatze 9 zusammen. Die Obergurtprofile 3d, 3e und die Laufschiene 13 verlaufen hierbei parallel in Längsrichtung LR des Kranträgers 2. Each upper flange 3 is composed of two arranged in a horizontal plane and horizontally spaced apart first and second Obergurtprofilen 3d, 3e and welded onto the upper flange 3d, 3e running rail 13 for the trolley 9 together. The upper belt profiles 3d, 3e and the running rail 13 in this case run parallel in the longitudinal direction LR of the crane girder 2.
Die beiden Obergurtprofile 3d, 3e sind von einem L- beziehungsweise Winkel-Profil- Träger gebildet, der jeweils einen vertikalen Steg 3a und einen dazu rechtwinklig angeordneten horizontalen Flansch 3c umfasst. Der Untergurt 4 ist analog zu dem Obergurt 3 ebenfalls aus zwei L- beziehungsweise Winkel-Profil-Trägern, nämlich einem ersten Untergurtprofil 4d und einem zweiten Untergurtprofil 4e The two upper flange profiles 3d, 3e are formed by an L or angle profile carrier, which in each case comprises a vertical web 3a and a horizontal flange 3c arranged at right angles thereto. The lower flange 4 is also analogous to the upper flange 3 of two L or angle profile carriers, namely a first lower flange 4d and a second lower flange 4e
zusammengesetzt. Jedes Untergurtprofil 4d, 4e umfasst daher auch einen composed. Each Untergurtprofil 4d, 4e therefore also includes a
horizontalen Flansch 4f und einen vertikalen Steg 4a, die entsprechend rechtwinklig zueinander angeordnet sind. Die nach unten gerichteten Stege 3a der Obergurtprofile 3d, 3e der Obergurte 3 und die nach oben gerichteten Stege 4a der Untergurtprofile 4d, 4e der Untergurte 4 sind einander zugewandt. Durch den Abstand der in horizontal flange 4f and a vertical web 4a, which are arranged corresponding to each other at right angles. The downwardly directed webs 3a of the Obergurtprofile 3d, 3e of the upper chords 3 and the upwardly directed webs 4a of the lower chord profiles 4d, 4e of the lower chords 4 face one another. By the distance of in
Längsrichtung LR gesehen äußersten Kanten der Flansche 3c, 4f der Obergurtprofile 3d, 3e oder der Untergurtprofile 4d, 4e ergibt sich außerdem eine Breite B des entsprechenden Kranträgers 2. Longitudinal LR seen outermost edges of the flanges 3c, 4f of the upper flange 3d, 3e or the Untergurtprofile 4d, 4e also gives a width B of the corresponding crane girder. 2
Die Figur 1 zeigt, dass der Obergurt 3 und der Untergurt 4 über mehrere jeweils flächenförmig ausgebildete Streben 5 und Pfosten 6 miteinander verbunden sind. Hierbei nehmen die flächenförmigen Streben 5 beziehungsweise Flächenstreben und Pfosten 6 bevorzugt Kräfte in Richtung ihrer Längsachse und somit in der FIG. 1 shows that the upper flange 3 and the lower flange 4 are connected to one another via a plurality of respective flat-shaped struts 5 and posts 6. Here, the sheet-like struts 5 or surface struts and posts 6 preferably take forces in the direction of their longitudinal axis and thus in the
Erstreckungsebene ihrer ebenen Hauptfläche auf. Derartige Flächenelemente beziehungsweise Flächentragwerke werden in der technischen Mechanik als  Extension plane of its flat main surface. Such surface elements or surface structures are used in technical mechanics as
Scheiben bezeichnet, wohingegen senkrecht zu ihrer Erstreckungsebene Slices, whereas perpendicular to their plane of extension
beziehungsweise Hauptfläche belastete Flächenelemente als Platten bezeichnet werden. Scheiben und somit auch die Flächenstreben unterscheiden sich or main surface loaded surface elements are referred to as plates. Slices and thus also the surface struts differ
beispielsweise von Stäben beziehungsweise stabförmigen Pfosten und Streben dadurch, dass ihre Dickenabmessungen wesentlich kleiner sind als die die flächige Ausdehnung der Scheibe bestimmenden Längen- und Breitenabmessungen. For example, of rods or rod-shaped posts and struts in that their thickness dimensions are substantially smaller than the areal extent of the disc determining length and width dimensions.
Demnach können flächenförmige Streben 5 auch als Flächenstreben oder Accordingly, sheet-like struts 5 can also be used as surface struts or
Scheibenstreben bezeichnet werden. Disc struts are called.
Hierbei sind die Streben 5 als Blechprofil mit einer Hauptfläche 5a mit einem im Wesentlichen rechteckigen Querschnitt ausgebildet und insbesondere Here, the struts 5 are formed as a sheet metal profile with a main surface 5a having a substantially rectangular cross-section and in particular
spiegelsymmetrisch bezüglich ihrer Längsachse LA ausgebildet, wobei deren Längsseiten zur Erhöhung der Beulsteifigkeit zumindest in einem mittleren Bereich in Form von Nebenflächen 5b umgekantet sind. Der grundsätzliche Aufbau der flächenförmigen Pfosten 6 entspricht - bei entsprechend angepassten Maßen - im Wesentlichen dem Aufbau der flächenförmigen Streben 5. Hierbei erstreckt sich jeder in der flächenförmigen Pfosten 6 mit einer Hauptfläche 6a quer zur Längsrichtung LR des Kranträgers 2 und mit rechtwinklig dazu abgekanteten Nebenflächen 6b in dieser Längsrichtung LR. Die flächenförmigen Pfosten 6 können außerdem so angeordnet beziehungsweise ausgerichtet sein, dass die Nebenflächen 6b zu einem der Enden des Kranträgers 2 hin oder hiervon weg zeigen. Die Fachwerkkonstruktion jedes Kranträgers 2 wird an den gegenüberliegenden Enden des Obergurtes 3 und des Untergurtes 4 über jeweils einen Adapter 12 abgeschlossen. Über diese Adapter 12 werden der Obergurt 3 und der Untergurt 4 zu einem Rahmen verbunden. Ausgehend von einem der beiden Adapter 12 in Längsrichtung LR des Kranträgers 2 gesehen ist ein erster flächenförmiger Pfosten 6 angeordnet, der mit einer mit dem Untergurt 4 verbundenen ersten Strebe 5 einen gemeinsamen unteren Knotenpunkt UK an dem Untergurt 4 bildet. Die erste Strebe 5 verläuft in Längsrichtung LR in einem Anstellwinkel a2 geneigt in Richtung des Obergurtes 3 und ist dort befestigt. Der Anstellwinkel a2 ist hierbei eingeschlossen von der ersten Strebe 5 und dem in dem unteren Knotenpunkt UK endenden Pfosten 6. Vorzugsweise liegt der formed mirror-symmetrically with respect to their longitudinal axis LA, wherein the longitudinal sides are folded over to increase the buckling rigidity, at least in a central region in the form of auxiliary surfaces 5b. The basic structure of the planar posts 6 corresponds - with correspondingly adapted dimensions - substantially the structure of the sheet-like struts 5. In this case, each extends in the planar posts 6 with a main surface 6a transverse to the longitudinal direction LR of the crane girder 2 and at right angles to this folded auxiliary surfaces 6b in this longitudinal direction LR. The sheet-like posts 6 can also be arranged or aligned such that the auxiliary surfaces 6b point towards or away from one of the ends of the crane girder 2. The truss structure of each crane girder 2 is at the opposite Ends of the upper flange 3 and the lower flange 4 via an adapter 12 completed. About this adapter 12, the upper flange 3 and the lower flange 4 are connected to form a frame. Starting from one of the two adapters 12 in the longitudinal direction LR of the crane girder 2, a first planar post 6 is arranged, which forms a common bottom node UK on the lower girdle 4 with a first strut 5 connected to the lower girder 4. The first strut 5 extends in the longitudinal direction LR inclined at an angle a2 in the direction of the upper flange 3 and is fixed there. The angle of attack a2 is in this case enclosed by the first strut 5 and ending in the lower node UK post 6. Preferably, the
Anstellwinkel a2 in einem Bereich von 35° bis 55° und beträgt besonders bevorzugt 45°. An dem Obergurt 3 schließt sich dann an die erste Strebe 5 eine zweite Strebe 5 an, die schräg unter dem Anstellwinkel a2 nach unten zu dem nächsten unteren Knotenpunkt UK an dem Untergurt 4 verläuft. Dies wiederholt sich so lange, bis von den Streben 5 das gegenüberliegende Ende des Kranträgers 2 erreicht ist. Somit bildet jede Strebe 5 mit einem flächenförmigen Pfosten 6 im Bereich des Incidence angle a2 in a range of 35 ° to 55 ° and is more preferably 45 °. At the top flange 3 then adjoins the first strut 5, a second strut 5, which extends obliquely below the angle of attack a2 down to the next lower node UK on the lower flange 4. This is repeated until the struts 5 reach the opposite end of the crane girder 2. Thus, each strut 5 forms with a planar post 6 in the region of
entsprechenden unteren Knotenpunktes UK an den Untergurten 4 einen gleich großen Anstellwinkel a2. Hierbei wird immer eine gerade Anzahl von satteldachartig schräg beziehungsweise diagonal zueinander angeordneten Streben 5 verwendet, so dass die letzte Strebe 5 am Untergurt 4 endet und zu diesem abfällt. Je nach Länge L des Kranträgers 2 wird vor der Montage der Anstellwinkel a2 bestimmt, so dass eine gerade Anzahl von Streben 5 mit jeweils gleicher Länge und unter gleichem corresponding bottom node UK at the lower chords 4 an equal angle a2. Here, an even number of saddle roof-like obliquely or diagonally arranged struts 5 is always used, so that the last strut 5 ends at the lower flange 4 and drops to this. Depending on the length L of the crane girder 2, the angle of attack a2 is determined before assembly, so that an even number of struts 5, each having the same length and the same
Anstellwinkel a2 zum Einsatz kommt. Hierdurch wird der die Laufschiene 13 tragende Obergurt 3 gegen Durchbiegung verstärkt. Angle of attack a2 is used. As a result, the upper rail 3 carrying the running rail 13 is reinforced against bending.
Die Streben 5 sind innerhalb der Fachwerkkonstruktion jedes Kranträgers 2 so ausgerichtet, dass sich jeweils ihre Hauptfläche 5a quer zur Längsrichtung LR des Kranträgers 2 erstreckt. Außerdem sind die Streben 5 mit ihren unteren ersten Strebenenden 5g an dem Untergurt 4 angeschweißt. The struts 5 are aligned within the truss structure of each crane girder 2 so that each of their major surface 5a extends transversely to the longitudinal direction LR of the crane girder 2. In addition, the struts 5 are welded with their lower first strut ends 5 g to the lower flange 4.
An ihren oberen zweiten Strebenenden 5h beziehungsweise Pfostenenden 6h sind an den Streben 5 und die Pfosten 6 jeweils eine obere Aussparung 5i, 6i vorgesehen, in die die Stege 3a der Obergurtprofile 3d, 3e hinein ragen und dort mit an Längsseiten der oberen Aussparung 5i, 6i anliegen und in diesem Bereich mit den Streben 5 und den Pfosten 6 verschweißt sind (siehe auch Figur 2). Die horizontalen Flansche 3c der Obergurtprofile 3d, 3e zeigen hierbei jeweils nach außen und somit von den oberen Aussparungen 5i, 6i der Streben 5 beziehungsweise Pfosten 6 weg. Die flächenförmigen Pfosten 6 sind mit ihrem unteren ersten Pfostenende 6g At their upper second strut ends 5h and post ends 6h, respectively, an upper recess 5i, 6i are provided on the struts 5 and the posts 6, into which the webs 3a of the upper run profiles 3d, 3e protrude and there with longitudinal sides of the upper recess 5i, 6i abut and in this area with the struts 5 and the post 6 are welded (see also Figure 2). The horizontal flanges 3c of the upper flange profiles 3d, 3e hereby point outwards and thus away from the upper recesses 5i, 6i of the struts 5 or posts 6. The planar posts 6 are 6g with their lower first post end
beziehungsweise einer darin angeordneten unteren Aussparung 6e auf die Stege 4a der Untergurtprofile 4d, 4e aufgeschoben und mit diesen verschweißt. Es ist auch denkbar, in gleicher Weise wie bei den Streben 5 für jeden Steg 4a eine eigene untere Aussparung 6e in dem ersten Pfostenende 6g vorzusehen. Quer zu der Längsrichtung LR des Kranträgers 2 gesehen ist zwischen den Stegen 3a des Obergurtes 3 also immer nur eine Strebe 5 und ein Pfosten 6 vorgesehen. or a lower recess 6e arranged therein is pushed onto the webs 4a of the lower belt profiles 4d, 4e and welded thereto. It is also conceivable to provide a separate lower recess 6e in the first post end 6g in the same way as in the struts 5 for each web 4a. Seen transversely to the longitudinal direction LR of the crane girder 2 is between the webs 3a of the upper flange 3 so only one strut 5 and a post 6 is provided.
Des Weiteren zeigt die Figur 2, dass an dem oberen zweiten Strebenende 5h im Bereich der oberen Ecken der Streben 5 zwei Strebenarme 5j ausgebildet werden, indem an dem oberen zweiten Strebenende 5h mittig und bezüglich der Längsachse LA der Strebe 5 zentriert eine obere Aussparung 5i mit einem im Wesentlichen rechteckigen Querschnitt in der Hauptfläche 5a vorgesehen ist. Die obere Aussparung 5i erstreckt sich ausgehend von dem oberen zweiten Strebenende 5h parallel zu der Längsachse LA, wobei die sich gegenüberliegenden Längsseiten der oberen Furthermore, FIG. 2 shows that two strut arms 5j are formed at the upper second strut end 5h in the region of the upper corners of the struts 5, centered on the upper second strut end 5h and centered with respect to the longitudinal axis LA of the strut 5 is an upper recess 5i a substantially rectangular cross-section in the main surface 5a is provided. The upper recess 5i extends from the upper second strut end 5h parallel to the longitudinal axis LA, the opposite longitudinal sides of the upper
Aussparung 5i mit gleichem Abstand rechts beziehungsweise links von der Recess 5i with the same distance to the right or left of the
Längsachse LA verlaufen. Die obere Aussparung 5i ist quer zur Längsachse LA gesehen so bemessen, dass zumindest die zwei vertikal nach unten zeigenden Stege 3a der beiden Obergurtprofile 3d, 3e in die obere Aussparung 5i eintauchen beziehungsweise hinein geschoben werden können. Auch kann der Figur 2 entnommen werden, dass die Stege 3a der beiden Longitudinal axis LA run. The upper recess 5i is viewed transversely to the longitudinal axis LA dimensioned so that at least the two vertically downwardly facing webs 3a of the two Obergurtprofile 3d, 3e dip into the upper recess 5i or can be pushed into it. It can also be seen from Figure 2 that the webs 3a of the two
Obergurtprofile 3d, 3e mit ihren den Längsseiten der oberen Aussparung 5i zugewandten Außenseiten an den Längsseiten anliegen und dass dort eine Obergurtprofile 3d, 3e with their the long sides of the upper recess 5i facing outer sides abut the longitudinal sides and that there is a
Schweißverbindung entlang der Schweißnähte S erfolgt. Eine weitere Welded connection along the welds S done. Another
Schweißverbindung ist zwischen dem Obergurt 3 und den oberen zweiten Welded joint is between the upper flange 3 and the upper second
Strebenenden 5h vorgesehen, insbesondere in Form von horizontalen Striving 5h provided, especially in the form of horizontal
Schweißnähten S zwischen den Strebenarmen 5j und den auf deren in Richtung der Längsachse LA zeigenden Stirnseiten aufliegenden Flanschen 3c der Obergurtprofile 3d, 3e. Alternativ zu der Darstellung in der Figur 2 ist es auch denkbar, dass nicht nur eine obere Aussparung 5i, sondern stattdessen analog zu unteren Aussparungen 5e zwei obere Aussparungen 5i vorgesehen sind. Die Hauptfläche 5a kann sich dann ebenso wie zwischen den unteren Aussparungen 5e auch zwischen den oberen Weld seams S between the strut arms 5j and the flanges 3c of the upper flange profiles 3d, 3e lying on their end faces pointing in the direction of the longitudinal axis LA. As an alternative to the representation in FIG. 2, it is also conceivable that not only one upper recess 5i, but instead of the lower recesses 5e, two upper recesses 5i are provided. The main surface 5a can then as well as between the lower recesses 5e and between the upper
Aussparungen 5i in Richtung des oberen zweiten Strebenendes 5h erstrecken und hier einen mittleren dritten Strebenarm 5j ausbilden. Insbesondere kann der von der Hauptfläche 5a gebildete mittlere Strebenarm 5j dort gegenüber den Stirnseiten der Strebenfüße 5f beziehungsweise den Stirnseiten der beiden äußeren Strebenarme 5j in Richtung der Längsache LA gesehen zurückfallen, sofern die Aussparungen 5e, 5i zumindest einen zur Aufnahme beziehungsweise Positionierung der Stege 3a, 4a der Ober- und Untergurte 3, 4 ausreichend tiefen schlitzförmigen Querschnitt aufweisen. Recesses 5i extend in the direction of the upper second strut end 5h and here form a central third strut arm 5j. In particular, the central strut arm 5j formed by the main surface 5a can fall back there in the direction of the longitudinal axis LA relative to the end faces of the strut feet 5f or the end faces of the two outer strut arms 5j, provided that the recesses 5e, 5i have at least one for receiving or positioning the webs 3a, 4a of the upper and lower chords 3, 4 have sufficiently deep slot-shaped cross-section.
Auch ist der Figur 2 zu entnehmen, dass die Stege 3a der Obergurtprofile 3d, 3e vorzugsweise näher beieinander und somit weniger weit von den Längsachsen LA der Streben 5 entfernt angeordnet sind als die Stege 4a der Untergurtprofile 4d, 4e. It can also be seen from FIG. 2 that the webs 3a of the upper belt profiles 3d, 3e are preferably arranged closer to one another and thus less far from the longitudinal axes LA of the struts 5 than the webs 4a of the lower belt profiles 4d, 4e.
Dadurch können die Obergurtprofile 3d, 3e jedes Obergurtes 3 der beiden Kranträger 2 über die ebenfalls in der Figur 2 dargestellte Laufschiene 13 an von den Stegen 3a abgewandten Oberseiten miteinander verbunden werden. Zur Verbindung der horizontal nebeneinander angeordneten Obergurtprofile 3d, 3e ist daher eine entsprechende Laufschiene 13 auf den Oberseiten der Obergurtprofile 3d, 3e aufgeschweißt. As a result, the upper flange profiles 3d, 3e of each upper flange 3 of the two crane girders 2 can be connected to one another via the running rail 13, also shown in FIG. 2, on upper sides facing away from the webs 3a. For connecting the horizontally juxtaposed upper chord profiles 3d, 3e, therefore, a corresponding running rail 13 is welded onto the upper sides of the upper chord profiles 3d, 3e.
Die Laufschienen 13 weisen einen rechteckigen Querschnitt auf und bilden an ihren Oberseiten jeweils eine der Laufflächen 13a für die hier nicht dargestellten Fahrwerke der Krankatze 9 aus. Jede Laufschiene 13 ist vorzugsweise mittig beziehungsweise zentriert gegenüber den beiden parallelen Stegen 3a der entsprechenden The rails 13 have a rectangular cross-section and form on their upper sides in each case one of the running surfaces 13a for the chassis of the trolley 9, not shown here. Each running rail 13 is preferably centered or centered with respect to the two parallel webs 3a of the corresponding
Obergurtprofile 3d, 3e und somit auch zentriert gegenüber der Längsachse LA der Strebe 5 angeordnet. Außerdem ist die Laufschiene 13 so bemessen, dass sie den Abstand zwischen den in die obere Aussparung 5i eintauchenden Stegen 3a überbrückt und mit den Flanschen 3c der Obergurtprofile 3d, 3e entlang der  Obergurtprofile 3d, 3e and thus also centered with respect to the longitudinal axis LA of the strut 5 is arranged. In addition, the running rail 13 is dimensioned such that it bridges the distance between the webs 3a dipping into the upper recess 5i and with the flanges 3c of the upper run profiles 3d, 3e along the
Längsrichtung LR des Kranträgers 2 verschweißt werden kann. Bezugszeichenliste Longitudinal LR of the crane girder 2 can be welded. LIST OF REFERENCE NUMBERS
1 Kran 1 crane
2 Kranträger  2 crane girders
3 Obergurt  3 upper strap
3a Steg  3a footbridge
3b Flachprofil  3b flat profile
3c Flansch  3c flange
3d erstes Obergurtprofil 3d first top chord profile
3e zweites Obergurtprofil3e second upper chord profile
3f Spalt 3f gap
4 Untergurt  4 lower flange
4a Steg  4a bridge
4b Flachprofil  4b flat profile
4d erstes Untergurtprofil 4d first lower chord profile
4e zweites Untergurtprofil4e second lower chord profile
4f Flansch 4f flange
5 Strebe  5 strut
5a Hauptfläche  5a main area
5b Nebenfläche  5b secondary area
5c untere Ausnehmung 5c lower recess
5e untere Aussparung5e lower recess
5f Strebenfuß 5f struts foot
5g erstes Strebenende 5g first end of strut
5h zweites Strebenende5h second end of the strut
5i obere Aussparung5i upper recess
5j Strebenarm 5j struts arm
6 Pfosten  6 posts
6a Hauptfläche  6a main surface
6b Nebenfläche  6b secondary area
6e untere Aussparung 6e lower recess
6g erstes Pfostenende6g first post end
6h zweites Pfostenende6h second post end
6i obere Aussparung6i upper recess
7 erstes Fahrwerk erster Elektromotor zweites Fahrwerk zweiter Elektromotor7 first suspension first electric motor second landing gear second electric motor
Krankatze crab
Kransteuerung crane control
HängesteuerschalterSuspension control switch
Adapter adapter
Laufschiene  runner
Lauffläche  tread
Anstellwinkel Breite Angle of attack width
Fahrtrichtung direction of travel
Länge length
Längsachse  longitudinal axis
Längsrichtung oberer Knotenpunkt Longitudinal upper node
Schweißnaht unterer Knotenpunkt Weld lower node

Claims

Patentansprüche claims
1 . Kran (1 ), insbesondere Brückenkran oder Portalkran, mit mindestens zwei sich horizontal in einer Längsrichtung (LR) erstreckenden und als Fachwerkträger ausgebildeten Kranträgern (2), die jeweils einen Obergurt (3) umfassen und an denen eine Krankatze (9) mit einem Hebezeug verfahrbar ist, dadurch gekennzeichnet, dass die Obergurte (3) jeweils aus zwei Obergurtprofilen (3d, 3e) zusammengesetzt sind, die über eine Laufschiene (13) für die Krankatze (9) miteinander verbunden sind. 1 . Crane (1), in particular a bridge crane or gantry crane, with at least two crane girders (2) extending horizontally in a longitudinal direction (LR) and designed as truss girders, each comprising a top girder (3) and having a crane trolley (9) with a hoist is movable, characterized in that the upper straps (3) are each composed of two Obergurtprofilen (3d, 3e), which are connected to each other via a running rail (13) for the crane trolley (9).
2. Kran (1 ) nach Anspruch 1 , dadurch gekennzeichnet, dass die Obergurtprofile (3d, 3e) jeweils einen horizontalen Flansch (3c) umfassen und zur Verbindung der Obergurtprofile (3d, 3e) eines der Obergurte (3) jeweils die Laufschiene (13) auf Oberseiten zweier benachbarter Flansche (3c) befestigt ist. 2. crane (1) according to claim 1, characterized in that the Obergurtprofile (3d, 3e) each comprise a horizontal flange (3c) and for connecting the Obergurtprofile (3d, 3e) of the upper straps (3) respectively the running rail (13 ) is mounted on tops of two adjacent flanges (3c).
3. Kran (1 ) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Laufschiene (13) mittig zwischen den Obergurtprofilen (3d, 3e) angeordnet ist. 3. crane (1) according to claim 1 or 2, characterized in that the running rail (13) is arranged centrally between the Obergurtprofilen (3d, 3e).
4. Kran (1 ) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Laufschiene (13) aus einem Vollmaterial hergestellt ist. 4. crane (1) according to one of claims 1 to 3, characterized in that the running rail (13) is made of a solid material.
5. Kran (1 ) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Laufschiene (13) einen rechteckigen Querschnitt aufweist. 5. crane (1) according to one of claims 1 to 4, characterized in that the running rail (13) has a rectangular cross-section.
6. Kran (1 ) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Laufschiene (13) auf die Obergurtprofile (3d, 3e) aufgeschweißt ist. 6. crane (1) according to one of claims 1 to 5, characterized in that the running rail (13) on the upper flange (3d, 3e) is welded.
7. Kran (1 ) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Obergurtprofile (3d, 3e) als Winkel-Profil-Träger ausgebildet sind und jeweils einen sich an den Flansch (3c) anschließenden vertikalen Steg (3a) umfassen. 7. crane (1) according to one of claims 1 to 6, characterized in that the Obergurtprofile (3d, 3e) are formed as an angle-profile support and each one to the flange (3c) subsequent vertical web (3a) ,
8. Kran (1 ) nach Anspruch 7, dadurch gekennzeichnet, dass die vertikalen Stege (3c) parallel zueinander verlaufen, über einen Spalt (3f) voneinander beabstandet sind und der Spalt (3f) von der Laufschiene (13) überbrückt ist. 8. crane (1) according to claim 7, characterized in that the vertical webs (3c) parallel to each other, via a gap (3f) are spaced apart and the gap (3f) of the running rail (13) is bridged.
9. Kran (1 ) nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die als 9. crane (1) according to claim 7 or 8, characterized in that as
Fachwerkträger ausgebildeten Kranträger (2) Streben (5) und Pfosten (6) umfassen, die jeweils obere Aussparungen (5i, 6i) aufweisen, in die die vertikalen Stege (3a) hinein ragen. Trussed crane carrier trained (2) struts (5) and posts (6), each having upper recesses (5i, 6i), into which the vertical webs (3a) protrude.
EP13771544.7A 2012-10-09 2013-10-04 Crane, in particular overhead crane or gantry crane, comprising at least two crane girders Active EP2906493B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012109586.8A DE102012109586A1 (en) 2012-10-09 2012-10-09 Crane, in particular overhead crane or gantry crane, with at least two crane girders
PCT/EP2013/070752 WO2014056809A1 (en) 2012-10-09 2013-10-04 Crane, in particular overhead crane or gantry crane, comprising at least two crane girders

Publications (2)

Publication Number Publication Date
EP2906493A1 true EP2906493A1 (en) 2015-08-19
EP2906493B1 EP2906493B1 (en) 2016-09-07

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EP13771544.7A Active EP2906493B1 (en) 2012-10-09 2013-10-04 Crane, in particular overhead crane or gantry crane, comprising at least two crane girders

Country Status (10)

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US (1) US9751730B2 (en)
EP (1) EP2906493B1 (en)
CN (2) CN203199888U (en)
AU (1) AU2013329652B2 (en)
BR (1) BR112015006347A2 (en)
DE (1) DE102012109586A1 (en)
ES (1) ES2606027T3 (en)
MX (1) MX356500B (en)
RU (1) RU2637715C2 (en)
WO (1) WO2014056809A1 (en)

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DE102014107323A1 (en) * 2014-05-23 2015-11-26 Terex Mhps Gmbh Crane carrier for a crane, in particular for a bridge or gantry crane, and a crane hereby
DE102015101755A1 (en) 2015-02-06 2016-08-11 Terex MHPS IP Management GmbH Crane, in particular overhead crane or gantry crane, with at least one crane girder
DE102015101756A1 (en) * 2015-02-06 2016-08-11 Terex MHPS IP Management GmbH Crane, in particular overhead crane or gantry crane, with at least one crane girder
US10640335B2 (en) * 2016-08-12 2020-05-05 Konecranes Global Corporation Cantilevered crane system for a factory work station
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DE102019125223A1 (en) * 2019-09-19 2021-03-25 Konecranes Global Corp. Device for manual operation of a machine, preferably a hoist or crane
CN112429651B (en) * 2020-10-29 2023-05-23 中铁六局集团有限公司 Installation construction process for 1000-ton lifting frame equipment

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Also Published As

Publication number Publication date
ES2606027T3 (en) 2017-03-17
CN203199888U (en) 2013-09-18
RU2015112354A (en) 2016-11-27
BR112015006347A2 (en) 2019-08-27
US20150266703A1 (en) 2015-09-24
WO2014056809A1 (en) 2014-04-17
RU2637715C2 (en) 2017-12-06
US9751730B2 (en) 2017-09-05
DE102012109586A1 (en) 2014-04-10
MX2015004530A (en) 2015-07-14
EP2906493B1 (en) 2016-09-07
AU2013329652B2 (en) 2016-11-24
CN104755409A (en) 2015-07-01
MX356500B (en) 2018-05-31
AU2013329652A1 (en) 2015-05-21

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