EP2906494A1 - Pont roulant, notamment sous forme de pont ou de portique, comportant au moins une poutre - Google Patents

Pont roulant, notamment sous forme de pont ou de portique, comportant au moins une poutre

Info

Publication number
EP2906494A1
EP2906494A1 EP13773732.6A EP13773732A EP2906494A1 EP 2906494 A1 EP2906494 A1 EP 2906494A1 EP 13773732 A EP13773732 A EP 13773732A EP 2906494 A1 EP2906494 A1 EP 2906494A1
Authority
EP
European Patent Office
Prior art keywords
crane
struts
flange
recess
strut
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
EP13773732.6A
Other languages
German (de)
English (en)
Other versions
EP2906494B1 (fr
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 EP2906494A1 publication Critical patent/EP2906494A1/fr
Application granted granted Critical
Publication of EP2906494B1 publication Critical patent/EP2906494B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • 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 one crane girder
  • the invention relates to a crane, in particular a bridge crane or gantry crane, comprising at least one crane girder which extends horizontally in a longitudinal direction and is designed as truss girder and which comprises a top girder and a bottom girder connecting flat-shaped struts and on which a crane trolley can be moved with a hoist.
  • a crane in particular a bridge crane or gantry crane, comprising at least one crane girder which extends horizontally in a longitudinal direction and is designed as truss girder and which comprises a top girder and a bottom girder connecting flat-shaped struts and on which a crane trolley can be moved with a hoist.
  • 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 one another.
  • the upper and lower chords of the two crane girders are connected by vertically extending rod-shaped posts and diagonally extending rod-shaped struts.
  • the two crane girders are connected at their ends via cross bars and struts together to form a frame.
  • rod-shaped posts and struts are provided between the upper and lower girders in the manner of a truss, each connecting an upper girth to the lower girder arranged underneath.
  • German utility model DE 1 971 794 U describes a two-girder bridge crane whose two horizontal crane girders are connected to one another via head carriers arranged at their respective ends and can be moved together in a direction of travel running transversely to the longitudinal direction of the crane girders.
  • Both crane girders are similarly designed as truss girders and each comprise plate-shaped upper girths, bar-shaped lower girders and rod-shaped posts.
  • From the German patent application DE 2 239 573 A is a truss known, the top and bottom chords are connected by struts.
  • the struts are formed as angle profiles, the lower ends have a slot and are bolted to the lower flange.
  • the object of the invention is to provide a crane, in particular a bridge crane or gantry crane, with at least one improved crane girder.
  • a crane in particular a bridge crane or gantry crane, comprising at least one crane girder extending horizontally in a longitudinal direction and designed as a truss girder, comprising struts interconnecting a top girth and a bottom girder and forming a flat-shaped strut and on which a crane trolley can be moved with a hoist
  • the at least one crane girder extending horizontally in a longitudinal direction and designed as a truss girder, comprising struts interconnecting a top girth and a bottom girder and forming a flat-shaped strut and on which a crane trolley can be moved with a hoist
  • the at least one crane girder extending horizontally in a longitudinal direction and designed as a truss girder, comprising struts interconnecting a top girth and a bottom girder and forming a flat-shaped strut and on which a crane trolley can be moved with a hoist
  • Crane beam advantageously improved in that at least one recess is provided at a first or second strut end of the struts on which the lower flange or the upper flange is applied, the struts are formed flat, the struts each one transverse to the longitudinal direction of the crane girder
  • each recess is arranged in the main surface of the struts.
  • Truss structure viewed, which have an oblique or diagonal course. This differentiates the pursuit of a
  • the improved crane girders are characterized by the fact that the production cost can be reduced, since corresponding recesses made in steel sheet struts or posts particularly simple example by
  • the sheet-like struts or surface struts preferably absorb forces in the direction of their longitudinal axis and thus in the plane of extent of their planar main surface.
  • Such surface elements or surface structures are referred to in the technical mechanics as discs, whereas perpendicular to their plane of extent or main surface loaded surface elements are referred to as plates.
  • Discs and thus also the surface struts according to the invention differ, for example, from bars or rod-shaped posts and struts in that their thickness dimensions are substantially smaller than the length and width dimensions determining the areal extent of the pane. Accordingly, sheet-like struts can also be referred to as surface struts or disc struts.
  • each recess is arranged in the main surface of the struts, also a simple production is possible.
  • the recesses can already be made when cutting the sheet metal profile.
  • Accurate alignment is advantageously facilitated by arranging each recess in a major surface of the struts extending transversely to the longitudinal direction. In a particularly advantageous manner, it is provided that the struts on the
  • Recess are connected to the lower chord or upper chord.
  • Recess is provided, against which the upper flange.
  • the upper belt and the lower belt each comprise at least one vertical web and the web of the upper belt rests on an upper recess and the web of the lower belt on a lower recess.
  • the upper belt comprises two upper belt profiles, each with a web or the lower belt two Untergurtprofile each with a web.
  • the alignment of the struts with respect to the lower chord and the upper chord is further simplified by the fact that exactly one recess is provided for each ridge.
  • the struts have at least one auxiliary surface bent at right angles from the main surface. As a result, in particular the Beulsteifmaschine the struts is increased.
  • the web of the lower flange or the web of the upper flange is welded to at least one longitudinal side of the corresponding recess running parallel to a longitudinal axis of the struts.
  • the risk of buckling of the upper flange or the lower flange is particularly effectively reduced by the fact that the upper flange and the lower flange are connected to each other via a plurality of along the longitudinal direction of the crane girder arranged posts, wherein the posts are formed similar to the struts planar and at least one recess. This also achieves the carrying capacity of a corresponding bridge or gantry crane or its crane girder.
  • Figure 1 a designed as a single-carrier crane bridge crane with a
  • FIG. 1 b shows a bridge crane designed as a two-girder crane with two crane girders according to the invention
  • FIG. 2 shows a cross-sectional view of one of the two crane girders for a gantry crane designed as a two-girder crane
  • FIGS. 3a and 3b show cross-sectional views of alternative crane girders for a bridge crane designed as a two-girder crane
  • FIG. 4 shows a perspective view of one end of one of the crane girders according to FIG. 1 b.
  • FIG. 1a shows a first crane 1a designed as a single-girder bridge crane.
  • the first crane 1 a comprises a crane girder 2 designed as a truss girder, which is aligned horizontally and extends with a length L in its longitudinal direction LR.
  • first and second trolleys 7, 8 are fixed, so that in plan view is formed substantially double-T-shaped crane bridge.
  • the first crane 1 a in a horizontal direction F transverse to the longitudinal direction LR of the crane girder 2 on rails not shown movable.
  • 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.
  • the first chassis 7 is driven by a first electric motor 7 a and the second chassis 8 by a second electric motor 8 a.
  • a trolley 9 is suspended with a trained as a cable hoist, which is not shown on bogies transverse to the direction of travel F of the first crane 1 a and along the longitudinal direction LR of the crane girder 2 movable.
  • the trolley 9 is movable along and on laterally protruding running surfaces 4c of a lower flange 4 of the crane girder 2.
  • the first crane 1 a also includes a crane control 10 and a suspension control switch 1 1 connected thereto, via which the first crane 1 a or the
  • Electric motors 7a, 8a and the trolley 9 with the cable separated from each other can be controlled and operated.
  • the truss structure of the crane girder 2 essentially comprises a top chord 3, a bottom chord 4, diagonally extending struts 5 and vertical posts 6.
  • the top chord 3 and the bottom chord 4 each extend mostly rectilinear, spaced apart and except at the opposite ends of the crane girder 2 parallel in the longitudinal direction LR of the crane girder 2 between the trolleys 7, 8.
  • the upper flange 3 and the lower flange 4 are vertically spaced from each other.
  • the upper flange 3 is composed of two arranged in a horizontal plane and horizontally spaced from each other first and second
  • 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 analogous to the upper flange 3 also from two L or angle profile carriers, namely a first lower flange 4d and a second lower flange 4e
  • Each lower flange profile 4d, 4e therefore comprises a horizontal flange 4f and a vertical web 4a, which are arranged correspondingly at right angles to one another.
  • the downwardly directed webs 3a of the upper belt profiles 3d, 3e of the upper belts 3 and the upwardly directed webs 4a of the lower belt profiles 4d, 4e of the lower belts 4 face one another. Due to the distance between the outermost edges of the flanges 3c, 4f of the upper flange profiles 3d, 3e or the lower flange profiles 4d, 4e of the lower flange 4 seen in the longitudinal direction LR, there is also a width B of the crane girder 2.
  • the lower flange 4 of the crane girder 2 of a single-girder crane designed as a first crane 1 a is not formed by two Untergurtprofilen 4d, 4e, but by a flat profile 4b with two vertically upstanding webs 4a.
  • the flange 4f is laterally extended beyond the webs 4a addition.
  • the opposite ends of the flange 4f form the running surfaces 4c.
  • the lower flange 4 may also be provided by an inverted T-profile Carrier are formed, which has a vertically upwardly facing web 4a.
  • the inverted T-shape of the web 4a of the T-profile carrier is connected at its lower end centrally with a horizontal flange 4f.
  • the opposite ends of the flange 4f each form a running surface 4c for trolleys of the trolley 9.
  • the upper flange 3 and the lower flange 4 are connected to one another via a plurality of respectively flat struts 5 and posts 6.
  • the struts 5 are formed as a sheet-metal profile with a main surface 5a having a substantially rectangular cross-section, wherein the longitudinal sides are folded over to increase the Beulsteifier 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 of the planar posts 6 extends with a main surface 6a transverse to the longitudinal direction LR of the crane girder 2.
  • perpendicular to the main surface 6a be folded side surfaces 6 b are provided, which extend in the longitudinal direction L R (see Figure 1 b).
  • planar posts 6 may also be arranged or aligned so that the minor surfaces 6b point towards one or both ends of the crane girder 2.
  • the construction of the struts 5 and the posts 6 will be described in detail below with reference to FIG 2.
  • the truss structure of the crane girder 2 is at the opposite ends of the upper flange 3 and the lower flange 4 via an adapter 12th
  • the adapter 12 in the region of the upper flange 3 and on the side facing away from the upper flange 3 comprises a connection plate 12a to which holes 12d of one of the trolleys 7, 8 or their support is attached.
  • a first strut 5 is connected to the lower girder 4 and extends into Longitudinal direction LR at a first angle of attack a1 inclined in the direction of
  • the first angle of attack a1 is hereby enclosed by the first strut 5 and a post 6 terminating in the upper node OK.
  • the first one lies
  • Angling angle a1 in a range of 35 ° to 55 ° and is particularly preferably 45 °.
  • the upper node OK joins a second strut 5, which extends obliquely below the angle of attack a1 down to 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 post 6 in the region of the corresponding upper node OK on the upper flange 3 an equal first angle of attack a1.
  • 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.
  • the angle of attack a1 is determined before assembly, so that an even number of struts 5, each having the same length and the same
  • Angle of attack a1 is used.
  • the lower belt 4 serving as a rail and for this purpose forming the running surface 4c is reinforced against bending.
  • the struts 5 are aligned within the truss structure of the crane girder 2 so that each of their main surface 5a extends transversely to the longitudinal direction LR of the crane girder 2.
  • the struts 5 are arranged with their lower first strut ends 5g between the mutually facing inner sides of the webs 4a of the lower chord profiles 4d, 4e and applied and welded thereto.
  • the lower first strut ends 5g in the corner region of both longitudinal sides of the struts 5 each have a bottom recess 5e, not shown in FIG. 1a
  • the design of the lower recesses 5e corresponds to that which is shown in detail in Figure 3b in connection with the crane girder 2 for a designed as a two-carrier crane bridge crane.
  • the longitudinal sides are recessed approximately by the thickness of a web 4a in the direction of the longitudinal axis LA of the strut 5.
  • the webs 4a of the Untergurtprofile 4d, 4e are created.
  • the horizontal flanges 4f of the lower belt profiles 4d, 4e in this case each point outwards and thus away from the struts 5.
  • the web 4a is received by a provided in the region of the lower first strut end 5g and substantially complementary to the web 4a lower recess 5e.
  • the lower recess 5e is accordingly arranged along a longitudinal axis LA of the strut 5 and in relation to a width of the main surface 5a of the strut 5 centrally in this.
  • each strut 5 lower recesses 5e are added, which except in the corner area between the longitudinal sides of the strut 5 and whose longitudinal axis LA can be arranged in the main surface 5a (see FIG. 2).
  • the struts 5 are arranged between the two upper flange profiles 3d, 3e, wherein the upper flange profiles 3d, 3e with the
  • the planar posts 6 are arranged in the same way as the struts 5 with their lower first post end 6g and their upper second post end 6h between the webs 3a, 4a of the upper flange 3 and lower flange 4 and welded thereto.
  • the posts 6 have corresponding lower recesses 6e and upper recesses 6i on the longitudinal sides of their main surfaces 6a.
  • the posts 6 are pushed with their lower first post ends 6 g or a lower recess 6 e arranged therein on the web 4 a of the lower flange 4 and with this welded.
  • FIG. 1b a second crane 1b designed as a two-girder bridge crane is shown, which comprises two crane jibs 2 in relation to the first crane 1a designed as a single-girder bridge crane. Both crane girders 2 are over at their
  • Adjacent adapter 12 is set to the desired length L and spaced parallel to each other.
  • the trolleys 7, 8 also shown are attached via the adapter 12 at the ends of the two crane girders 2, so that seen in plan view, a frame is formed.
  • the second crane 1 b comprises a crane trolley 9 with a trained as a cable hoist.
  • the trolley 9 is not suspended from the lower chords 4 of the crane girder 2, but runs on 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. Accordingly, the crane trolley 9 arranged centrally between crane girders 2 can travel along the longitudinal direction LR of the crane girders 2 and between the two crane girders 2 and between the two crane girders 2
  • Chassis 7, 8 are moved.
  • a load-receiving means of the trolley 9 arranged cable between both crane girders 2 can be lowered or raised.
  • the truss structures of the two crane girders 2 of the second crane 1 b in turn comprise a lower flange 4 and a top flange 3.
  • Bottom straps 4 are formed in the same way as in the first crane 1 a according to Figure 1 a and accordingly of a first and a second
  • Upper belt profiles 3d, 3e and lower belt profiles 4d, 4e are formed by an L or angle profile carrier.
  • the lower flange 4 of the second crane 1 b may in principle instead of two Untergurtprofilen 4d, 4e be composed of a flat profile 4b or an upside-down T-profile support.
  • each crane girder 2 is also planar with the associated lower flange 4 over a plurality of flat-shaped struts 5 and several
  • the struts 5 and the posts 6 are each identical to the two crane girders 2 of the second crane 1 b, that is, as in the case of the first crane 1 a according to FIG. 1 a, they are mirror-symmetrical with respect to their longitudinal axis LA.
  • FIG. 1 b shows that the struts 5 are arranged like a saddle roof in the same way as in the case of the crane girder 2 shown in FIG. 1 a.
  • two adjacent struts 5 is also associated with a planar-shaped post 6 in such a way that struts 5 and the post 6 meet at a common lower node UK on the lower chords 4.
  • each strut 5 forms with the associated planar posts 6 in the region of
  • a planar post 6 is still arranged at each end of the crane girder 2 after the last strut 5.
  • a bevelled side surfaces 6b are provided.
  • the auxiliary surfaces 6b are bent in the same direction in the direction of the same end of the crane girder 2 per crane girder 2, but in one of the crane girders 2 in the direction of the first carriage 7 and in the other of the crane girders 2 in the direction of the second carriage 8.
  • FIG. 2 shows a cross-sectional view of one of the two crane girders 2 for a gantry crane designed as a two-girder crane.
  • FIG. 2 shows, in particular, the basic structure of the struts 5, which essentially corresponds to FIG
  • Reference numerals 6a to 6j are shown and listed in the list of reference numerals.
  • the flat-shaped strut 5 shown in FIG. 2 comprises an elongated shape with a substantially rectangular main surface 5a.
  • the main surface 5a extends along the longitudinal axis LA of the strut 5 and at least in a central region over at least half the width B of the crane girder 2 transversely to the longitudinal direction LR of the crane girder 2.
  • the struts 5 are preferably made by laser cutting from a steel sheet.
  • the struts 5 have a lower first strut end 5g and an upper second strut end 5h. In the area of their opposing lower first and upper second strut ends 5g, 5h are on both longitudinal sides of the strut 5 two lower
  • Recesses 5c, 5d are round, preferably circular arc-shaped, and with regard to the welding of the struts 5 to the upper flange 3 and the lower flange 4 of the crane girder 2, the force flow through the welded-on struts 5 is optimized and the welded seams S or the weld outlets are relieved become. Between the lower and upper recesses 5c, 5d joins at each longitudinal side of the strut 5 at a right angle bent and parallel to the longitudinal axis LA extending auxiliary surface 5b to the main surface 5a.
  • the secondary surfaces 5b are substantially trapezoidal in shape (see also FIG. 4). Because the secondary surfaces 5b are both bent in the same direction, the strut 5 depicted in FIG.
  • the Strut 5 in a corresponding manner also have seen an at least partially L-shaped cross section in the direction of the longitudinal axis LA.
  • the secondary surfaces 5b are located outside of the webs 3a, 4a, so that only non-folded regions of the main surfaces 5a are welded to the webs 3a, 4a.
  • the lower flange 4 is formed by two Untergurtprofilen 4d, 4e, with a deviating from the figure 1 a construction of the lower first strut ends 5g and the upper second strut ends 5h of the struts 5 results, the structure of both for the first crane 1 a as well for the second crane 1 b is conceivable.
  • three strut feet 5f are formed by providing two lower recesses 5e for receiving the webs 4a of the lower chord 4 at the lower first strut end 5g in the main surface 5a.
  • the lower recesses 5e are considered substantially
  • the main surface 5a extends between the slit-shaped lower recesses 5e also rectangular to the lower first
  • Strut end 5g and forms there a third middle strut foot 5f.
  • the two lower recesses 5e are spaced apart.
  • one of the upwardly pointing webs 4a of the lower belt profiles 4d, 4e dips into one of the lower recesses 5e, so that each of the
  • slot-shaped recesses 5e can rest with its upper end on one of the webs 4a. However, the two outer strut feet 5f do not rest on the flanges 4f of the lower flange profiles 4d, 4e.
  • the two lower recesses 5e in FIG. 2 are essentially
  • both webs 4a between the outer strut feet 5f are arranged.
  • the webs 4a with their inner and outer sides the longitudinal sides of the lower recesses 5e extending in the longitudinal direction LA and are welded there to the struts 5.
  • a lower recess 5e is provided centrally or centered on the lower first strut end 5g in the main surface 5a of the strut 5, which has a mirror-symmetrical cross-section with respect to the longitudinal axis LA starting from the lower first end of the strut 5g tapered upward approximately trapezoidal and ends with an adjoining rectangular slot.
  • the lower recess 5e is thus formed substantially complementary to the web 4a and has for receiving the web 4a correspondingly suitable dimensions, whereby between the lower flange 4 and the strut 5 via the lower recess 5e a positive connection can be produced.
  • the upwardly pointing web 4a of the T-shaped lower belt 4 dips into the lower recess 5e, so that the lower recess 5e rests with its slot-shaped upper end on the web 4a.
  • the strut feet 5f are in this case on the flange 4f of the lower flange 4 and are each welded with horizontally extending welds S on the flange 4f. In addition, the lie
  • Strut feet 5f in this case with extending in the longitudinal direction LA longitudinal sides of the lower recess 5e to parallel outer sides of the web 4a and are there also welded to the web 4a with welds S.
  • two strut arms 5j are formed in the region of the upper corners of the struts 5, at the upper second
  • an upper recess 5i is provided with a substantially rectangular cross section in the main surface 5a.
  • the upper recess 5i extends starting from the upper second strut end 5h parallel to the longitudinal axis LA, the opposite longitudinal sides of the upper recess 5i being the same
  • 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. So that at the ends of the crane girder 2, a stiffening rib 12c of the adapter 12 between the mutually facing inner sides of the webs 3a can be pushed (see also Figure 4), the upper recesses 5i of the struts 5, however, depending on the thickness of the stiffening rib 12c
  • the webs 3a and the stiffening ribs 12c are approximately the same thickness, so that the upper recess 5i seen transversely to the longitudinal axis LA of the strut 5 is approximately three times as wide as the thickness of a web 3a and the stiffening rib 12c.
  • Welded joint is between the upper flange 3 and the upper second
  • Striving 5h provided, especially in the form of horizontal
  • the upper flange 3 can instead of the two Obergurtprofilen 3d, 3e also formed by a similar to the flat profile 4b formed flat profile 3b and thus in one piece.
  • the main surface 5a may then extend as well as between the lower recesses 5e and between the upper recesses 5i in the direction of the upper second strut end 5h and here form a middle third strut arm 5j.
  • the of the Main surface 5a formed mean strut arm 5j back there against the end faces of the strut feet 5f and the end sides of the two outer strut arms 5j seen in the longitudinal axis LA fall back, provided the recesses 5e, 5i 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.
  • two upper recesses 5 i with a respective rectangular cross-section in the longitudinal sides of the main surface 5 a can also be provided on the upper second strut end 5 h.
  • two upper recesses 5 i with a respective rectangular cross-section in the longitudinal sides of the main surface 5 a can also be provided on the upper second strut end 5 h.
  • Recesses 5i are thus the longitudinal sides in the area of the upper corners
  • Recesses 5i starting from the upper second strut end 5h in the direction of the longitudinal axis LA, are preferably dimensioned such that they correspond approximately to the length of the webs 3a of the upper-belt profiles 3d, 3e.
  • the offset of the longitudinal sides transversely to the longitudinal axis LA corresponds approximately to the thickness of one of the webs 3a.
  • the upper flange profiles 3d, 3e can be easily connected in a form-fitting manner to the struts 5 and thereby aligned with one another by their webs 3a with their inner sides facing the strut 5 being placed against the recessed longitudinal sides in the upper recesses 5i. Subsequently, under training appropriate
  • welds S the upper belt profiles 3d, 3e welded to the struts 5.
  • the flanges 3c of the upper belt profiles 3d, 3e are preferably in a horizontal plane with the end side of the upper second strut end 5h pointing in the direction of the longitudinal axis LA.
  • Strut end 5g be provided in the longitudinal sides of the main surface 5a two laterally arranged and paragraphs forming lower recesses 5e, where the webs 4a of the lower flange 4 rest with their inner sides and are welded.
  • the webs 3a of the upper run 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 run profiles 4d, 4e.
  • the upper belt profiles 3d, 3e of each upper belt 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
  • Longitudinal LR of the crane girder 2 can be welded.
  • the webs 3a, 4a of the upper and lower chords 3, 4 are each immersed with an immersion length of 80 mm in the recesses 5e, 5i or welded over the said length with the longitudinal sides of the recesses 5e, 5i.
  • the distance between the recesses 5e, 5i receiving the webs 3a, 4a and the secondary surfaces 5b, that is to say the length of the membrane joints formed in this region, is then in each case 100 mm.
  • the minor surfaces 5b have a minor surface length of 530 mm with respect to the longitudinal axis LA, that is, minor surfaces 5b extend in the longitudinal direction thereof over the minor surface length of 530 mm.
  • the minor surface lengths are thus preferably in a range of about 40% to 70% of the total length of the strut 5 and the immersion lengths in a range of about 5% to 15% of the total length of the strut 5.
  • FIGS. 3a and 3b each show a further cross-sectional view of one of the two crane girders 2 for a gantry crane designed as a two-girder crane.
  • the illustrated and described below upper straps 3 and lower straps 4 and thus also the struts 5 and 6 posts can be formed in a trained as a single-carrier bridge crane bridge crane in the same way.
  • the upper flange 3 of the crane girder 2 is in each case integrally formed as a T-beam with a vertically oriented web 3a and a horizontally oriented flange 3c.
  • the web 3a points downwards in the direction of the lower belt profiles 4d, 4e of the lower belt 4 and is in each case inserted into the slot-shaped upper recess 5i of the struts 5, which extends centrally in the main surface 5a along the longitudinal axis LA in the direction of the lower belt 4 and thus the forms two strut arms 5j.
  • Recesses 5i correspond in terms of their construction to the lower recesses 5e described above in connection with a lower belt 4 designed as a T-carrier and are formed substantially in the shape of a slot with a rectangular cross section.
  • the running rail 13 is welded centrally on the flange 3c on the side facing away from the web 3a.
  • the upper recess 5i shown in FIG. 3a differs from that shown in FIG. 3b in that its end facing the lower flange 4 widens drop-shaped with a rounded or bellied profile.
  • FIG. 3a Side surfaces 5b are arranged.
  • the auxiliary surfaces 5b directly adjoin the longitudinal sides of the strut arms 5j.
  • Figure 3b at the lower first strut end 5g of the strut 5 side lower recesses 5e are shown, to which the lower flange 4d, 4e created and welded with their vertically oriented webs 4a.
  • Fig. 4 is a perspective view of one end of one of the two Crane beam 2 for the second crane 1 b shown in Figures 1 b and 2 with one of the two adapters 12, which are arranged at both of the opposite ends.
  • the crane girder 2 is designed as truss girder with a top chord 3 composed of two top chord profiles 3d, 3e and a bottom chord 4 composed of two bottom chord profiles 4d, 4e.
  • a top chord 3 composed of two top chord profiles 3d, 3e
  • a bottom chord 4 composed of two bottom chord profiles 4d, 4e.
  • the running rail 13 running in the longitudinal direction LR is welded centrally relative to the width of the crane girder 2.
  • struts 5 which are employed in each case in the second angle of attack a2 to a planar-shaped post 6 and coincide with this at a lower node UK on the lower flange 4.
  • the lower flange 4 or its lower flange profiles 4d, 4e have, in the region of the ends of the crane girder 2 in each case after the first or last strut 5, a course guided diagonally upwards in the direction of the upper flange 3.
  • the trapezoidal design of the folded from the main surfaces 5a minor surfaces 5b of the struts 5b and the corresponding auxiliary surface 6b of the sheet-like post 6 is shown in FIG.
  • the auxiliary surfaces 5b, 6b are arranged outside the webs 3a, 4a of the upper and lower belts 3, 4 and extend in a vertical plane which includes the longitudinal direction LR of the crane girder 2.
  • the adapter 12 is applied to the upper flange 3 and the lower flange 4, aligned in the longitudinal direction LR and welded.
  • FIG. 4 shows the stiffening rib 12c arranged on the connection plate 12a or a head flange 12b connected thereto at right angles.
  • the stiffening rib 12c is flat and planar and extends diagonally upward from the terminal plate 12a to the top plate 12b.
  • the webs 3a of the upper flange 3 are not aligned vertically aligned with the webs 4a of the lower flange 4, but in the horizontal direction are less widely spaced than the webs 4a.
  • the upper recess 5i shown in FIG. 2 is correspondingly dimensioned in each strut 5, in particular in this way, the stiffening rib 12c can be slid between the two webs 3a protruding into the upper recess 5i.
  • the first lower node point UK starting from the end of the crane girder 2 shown on the lower girder 4, is shown, at which the first two struts 5 and the first post 6 meet, respectively
  • each of the two struts 5 forms with the post 6 one of the second angle of attack a2. Both the outer strut feet 5f and the post feet 6f are located on the
  • the post 6 has at its lower first post end 6g only a rectangular lower recess 6e and thus only two outer post feet 6f, on the inner longitudinal sides facing the webs 4a rest with their outer sides. It is therefore not provided in the post 6 for each web 4a its own lower recess 6e.
  • the strut arms 5j and post arms 6j formed by these upper recesses 5i, 6i are analogous to the two outer strut feet 5f and
  • the lower first strut ends 5g are analogous to the lower first post ends 6g formed with only a rectangular lower recess 5e and accordingly with only two outer struts feet 5f, so that the orientation of the struts 5 relative to the lower flange 4 on the Long sides of only a lower recess 5e takes place. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
  • Jib Cranes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Warehouses Or Storage Devices (AREA)

Abstract

Pont roulant (1 a, 1 b), notamment sous forme de pont ou de portique, comportant au moins une poutre (2) conçue comme une poutre en treillis et s'étendant à l'horizontale dans une direction longitudinale (LR), poutre qui comprend des montants (5) planiformes reliant une membrure supérieure (3) et une membrure inférieure (4) et sur laquelle se déplace un chariot (9) doté d'un engin de levage. A une première ou une deuxième extrémité (5g, 5h) des montants (5) est prévu au moins un évidement (5e, 5i) sur lequel porte la membrure supérieure (3) ou la membrure inférieure (4), les montants (5) étant planiformes, les montants (5) présentant chacun une surface principale (5a) s'étendant transversalement à la direction longitudinale (LR) de la poutre (2) et chaque évidement (5e, 5i) étant ménagé dans la surface principale (5a) des montants (5).
EP13773732.6A 2012-10-09 2013-10-04 Pont roulant, notamment sous forme de pont ou de portique, comportant au moins une poutre Active EP2906494B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012109588.4A DE102012109588A1 (de) 2012-10-09 2012-10-09 Kran, insbesondere Brückenkran oder Portalkran, mit mindestens einem Kranträger
PCT/EP2013/070751 WO2014056808A1 (fr) 2012-10-09 2013-10-04 Pont roulant, notamment sous forme de pont ou de portique, comportant au moins une poutre

Publications (2)

Publication Number Publication Date
EP2906494A1 true EP2906494A1 (fr) 2015-08-19
EP2906494B1 EP2906494B1 (fr) 2016-04-27

Family

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EP13773732.6A Active EP2906494B1 (fr) 2012-10-09 2013-10-04 Pont roulant, notamment sous forme de pont ou de portique, comportant au moins une poutre

Country Status (8)

Country Link
US (1) US9790060B2 (fr)
EP (1) EP2906494B1 (fr)
CN (2) CN203212229U (fr)
BR (1) BR112015006349B1 (fr)
DE (1) DE102012109588A1 (fr)
ES (1) ES2584987T3 (fr)
RU (1) RU2591778C1 (fr)
WO (1) WO2014056808A1 (fr)

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DE102012109586A1 (de) * 2012-10-09 2014-04-10 Demag Cranes & Components Gmbh Kran, insbesondere Brückenkran oder Portalkran, mit mindestens zwei Kranträgern
DE102014107323A1 (de) * 2014-05-23 2015-11-26 Terex Mhps Gmbh Kranträger für einen Kran, insbesondere für einen Brücken- oder Portalkran, und einen Kran hiermit
DE102015101755A1 (de) 2015-02-06 2016-08-11 Terex MHPS IP Management GmbH Kran, insbesondere Brückenkran oder Portalkran, mit mindestens einem Kranträger
DE102015101756A1 (de) * 2015-02-06 2016-08-11 Terex MHPS IP Management GmbH Kran, insbesondere Brückenkran oder Portalkran, mit mindestens einem Kranträger
DE102016120115A1 (de) * 2016-10-21 2018-04-26 Konecranes Global Corporation Laufkran
US10061323B2 (en) * 2016-12-22 2018-08-28 Advanced Construction Robotics, Inc. Autonomous apparatus and system for repetitive tasks in construction project
EP3568371B1 (fr) * 2017-01-13 2023-06-07 Bridge And Track Crane LLC D/B/A Rcrane Systèmes et procédés associés à une grue mobile
US10801593B2 (en) 2017-04-26 2020-10-13 Paratech, Incorporated Strut extender mechanism
FI129769B (en) * 2018-04-18 2022-08-15 Konecranes Global Corp Box girder, in particular a crane girder, and crane provided therewith and method of making the same
FI130235B (fi) * 2019-11-26 2023-05-04 Konecranes Global Oy Siltanosturin pääkannattaja
CN114506764B (zh) * 2022-02-22 2025-12-12 中冶京诚工程技术有限公司 吊车、吊车桁架、吊车桁架节点结构及其施工方法
CN114634103B (zh) * 2022-03-24 2025-09-02 河南省矿山起重机有限公司 一种起重机的主梁及起重机

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Also Published As

Publication number Publication date
US9790060B2 (en) 2017-10-17
BR112015006349B1 (pt) 2021-08-31
CN104781179A (zh) 2015-07-15
US20150259179A1 (en) 2015-09-17
DE102012109588A1 (de) 2014-04-10
WO2014056808A1 (fr) 2014-04-17
BR112015006349A2 (pt) 2019-08-27
EP2906494B1 (fr) 2016-04-27
ES2584987T3 (es) 2016-09-30
CN104781179B (zh) 2018-01-23
CN203212229U (zh) 2013-09-25
RU2591778C1 (ru) 2016-07-20

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