EP2108071B1 - Lasergeschweisste kranschiene für hängekatzen - Google Patents

Lasergeschweisste kranschiene für hängekatzen Download PDF

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Publication number
EP2108071B1
EP2108071B1 EP07819693A EP07819693A EP2108071B1 EP 2108071 B1 EP2108071 B1 EP 2108071B1 EP 07819693 A EP07819693 A EP 07819693A EP 07819693 A EP07819693 A EP 07819693A EP 2108071 B1 EP2108071 B1 EP 2108071B1
Authority
EP
European Patent Office
Prior art keywords
crane rail
rail according
stem
chord
crane
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.)
Not-in-force
Application number
EP07819693A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2108071A2 (de
Inventor
Wilfried Hess
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.)
Konecranes PLC
Original Assignee
Konecranes PLC
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 Konecranes PLC filed Critical Konecranes PLC
Publication of EP2108071A2 publication Critical patent/EP2108071A2/de
Application granted granted Critical
Publication of EP2108071B1 publication Critical patent/EP2108071B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C6/00—Girders, or track-supporting structures, specially adapted for cranes
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B25/00—Tracks for special kinds of railways
    • E01B25/22—Tracks for railways with the vehicle suspended from rigid supporting rails
    • E01B25/24—Supporting rails; Auxiliary balancing rails; Supports or connections for rails

Definitions

  • rails for hanging cats made of profiled rolled sheet steel.
  • An example of such a rail is in the DE 41 19 868 A1 described.
  • the rail forms a hollow lower flange and a hollow upper flange, which are connected by a bridge.
  • the bridge is in one piece with one half of the hollow upper flange and a lower half of the hollow lower flange.
  • the other half of the top chord and the bottom chord are each two single, roll-formed sheet metal parts, which are subsequently matched positionally with the part containing the web. The parts are then welded together.
  • the rail Due to its shape, the rail is also sensitive to bending during transport and it is not very torsionally stiff.
  • the rail according to the invention consists of a single piece of profile-rolled steel strip, which eliminates the handling of multiple parts. After the profile rolling of a single band steel strip, the complete rail is finished bent. No devices are needed to hold any other parts in the correct position together. Also, the handling is easy during the welding process, because no long bend sensitive parts must be joined for the welding process.
  • the profile-rolled steel strip is produced at the end a crane rail with a hollow top chord, a hollow bottom chord and an integrally attached shoulder strap that runs over the middle of the top chord.
  • the new crane rail shows a 15% higher resistance torque than comparable crane rails with the same wall thickness.
  • a thickness of the starting material between 1.5 mm and 4 mm is sufficient for the intended applications completely.
  • the lower flange may have a rectangular profile in cross-section, wherein the height may be between 10 mm and 30 mm.
  • the width of the lower flange can be between 50 mm and 80 mm.
  • the upper belt can be free of welds, which favors both the handling and the subsequent strength.
  • the upper flange may form a rectangular profile in cross-section, the width of which may be between 80 mm and 150 mm and the height between 50 mm and 100 mm.
  • the support belt can be free of welds.
  • the support belt forms a triangular profile.
  • the triangle is an isosceles triangle whose base points upwards.
  • the carrying strap may have a height between 10 mm and 25 mm, measured at the base of the triangle, and a height measured parallel to the height extension of the crane rail between 20 mm and 40 mm.
  • the laser welds are in areas where a small load occurs during later use. It may also be favorable if the web is in any case two-layered in two strip-shaped areas, which adjoin the upper and the lower belt, while it is single-layered in between. This creates space to weld the band steel edges to the continuous portion of the web to create a fluidly bonded portion, even though the stock has two loose, unconnected edges.
  • the width of the strips, in each of which the web is double-layered, can be between 5 mm and 20 mm.
  • the total height of the bridge, measured between the top of the lower girth and the underside of the upper girth, can be between 80 mm and 150 mm.
  • the laser welds that connect the strip edges of the stock material to the continuous area of the web may be continuous laser welds or laser weld seam sections.
  • dumbbell-shaped openings are included, whose longitudinal axis is aligned perpendicular to the longitudinal axis of the running rail.
  • brackets In order to anchor the crane rail according to the invention on the supporting structure, for example the building ceiling, brackets can be used which have two jaws screwed together. The jaws engage the strap and hold it form-fitting.
  • Each jaw may conveniently have a flange which is parallel to the triangular cross-section of the support belt, i. when the clamp is assembled, the support flanges run obliquely toward one another and form a point pointing downwards in the direction of the travel rail.
  • the support flange is connected via a back part with a retaining flange.
  • the two retaining flanges of the jaws are in mounted bracket in a common plane.
  • a bracket For further connection of the clip with the rest of the support structure, a bracket may be used which has a straight back portion, at the ends of two legs are up. With the back part of the bracket is inserted between the support flange and the support belt of the rail and transmits the forces occurring form-fitting of the. Running rail in the structure.
  • FIG. 1 shows in perspective in the position of use a portion of a crane track rail 1.
  • the crane track rail 1 is in particular designed as a running rail for hanging cats, preferably monorail trolleys.
  • the crane rail 1 has a lower flange 2 designed as a hollow-chamber profile, a top flange 3 likewise designed as a hollow-chamber profile, and a support belt 4, which in turn is designed as a hollow-chamber profile.
  • the lower flange 2 is connected to the upper flange 3 via a web 5.
  • the connection between the support belt 4 and the top of the upper flange 3 is effected by means of a web. 6
  • the crane rail 1 consists of a profile-rolled endless strip steel sheet whose band edges can be seen at 7 and 8.
  • the hollow-chamber-shaped lower flange 2 is formed with a lower wall 9, which merges at its edges into side walls 11 and 12.
  • the bottom wall 9 is flat and extends horizontally in use.
  • the two side walls 11 and 12 are bent at right angles from the lower wall 9 upwards.
  • the two side walls 11 and 12 pass into respective flanges 13 and 14, which represents the upper side of the lower flange 2.
  • On the flanges 13 and 14 run the wheels of the hanging cat.
  • Each of the two flanges 13 and 14 has a width approximately equal to half the width of the lower flange 2. At its lying in the middle of the crane rail 1 edge of the flange 13 passes into a strip 15, which forms part of the web 5 and up to the bottom of the upper flange 3 extends.
  • the flange 14 merges into a narrower web strip 16, which ends at the strip edge 7.
  • the web strip 16 lies flat and blunt on the web strip 15.
  • the height of the web strip 16 is a fraction of the height of the web strip 15.
  • the two web strips 15 and 16 define a joint, which is also the plane of symmetry of the crane rail 1 relative to the transverse extent.
  • the web strip 15 merges at its upper end in a flange 17 bent at right angles thereto, which represents one half of the underside of the upper belt 3.
  • the second band edge 8 to which a web strip 18 connects like the web strip 16 flat and dull on the web strip 15 rests.
  • the web strip 18 merges into a flange 19.
  • the flange 19 extends in the extension of the flange 17 to the opposite side, with respect to the vertical plane of symmetry.
  • the two flanges 17 and 19 together form the underside of the upper flange.
  • the flange 17 or the flange 19 merges into side walls 21 and 22, which run parallel to one another and represent the side walls of the upper flange 3.
  • two web strips 25 and 26 close up two flanges 27 and 28, which, as the figure shows, include an angle ⁇ 180 °.
  • the two flanges 27 and 28 form the, to the web 6 point tapering underside of the support belt. 4
  • the two flanges 27 and 28 are finally connected in one piece by a top 29.
  • the top 29 is the top of the support belt. 4
  • the plane of symmetry of the crane rail 1 As already mentioned, the plane of symmetry of the crane rail 1, the right-facing flat side of the web strip 15. With respect to this plane of symmetry, the flanges 13 and 14 collar the same length. Also, the flanges 17 and 19 or 23 and 24 have measured with respect to this plane of symmetry the same width, measured in the transverse direction of the crane rail 1. The two flanges 27 and 28 also with respect to the mentioned plane of symmetry this same extension in the transverse direction of the crane rail. 1
  • the entire crane rail profile 1, as in FIG. 1 is shown, with all, formed thereon surface portions, is in one piece, ie starting from the band edge 7 there is no interruption up to the band edge 8, when moving along the edge of the cross-sectional profile.
  • the two band edges 7 and 8 which are smooth end edges of the starting material, are laser-welded in the inner corner region with the adjacent flat side of the web strip 15.
  • a portion in the laser weld is shown at 31.
  • the laser welds 31, which connect the band edges 7 and 8 with the web strip 15, may be individual weld sections or a continuous weld.
  • the web dumbbell-shaped openings 32 may be included, whose longitudinal axis is aligned transversely to the longitudinal axis of the crane rail 1.
  • the finally obtained rail profile shows a very high load capacity, which is 15% higher than what comparable rails can achieve with the same material thickness.
  • Thickness 1.5 mm..4 mm Height of the lower flange: 10 mm..30 mm Width of the lower flange: 50 mm..80 mm Width of the upper flange: 80 mm.
  • 150 mm Height of upper strap 40 mm..100 mm Height of the carrying strap: 10 mm..25 mm Width of the carrying strap: 20mm..10mm Height of the bridge between the upper and the lower belt: 80 mm. 150 mm Width of stripes 16 and 18: 5 mm..20 mm
  • Fig. 2 shows a further embodiment of the crane runway rail 1 according to the invention
  • Fig. 2 differs from the embodiments according to Fig. 1 essentially in that the two band edges 7 and 8 no longer lie on the web flange 15 but are laid in the region of the upper side 29 of the carrier belt 4.
  • the basic profile is how Fig. 2 can easily recognize the same, only with the difference that the flange 14 is followed by a web flange 33 which extends to the flange 19.
  • the two band edges 7 and 8 lie in the middle of the upper side 29 of the support belt 4 and abut there, as the figure reveals, butts against each other.
  • the two band edges 7 and 8 are on the top 29 by a continuous laser weld 35 connected together.
  • the two web flanges 15 and 33 can be connected to one another directly above the lower belt 2 by way of short laser welds 36 in the form of lines.
  • These bar weld seams 36 are designed with the aid of the laser and act like spot welds, which instead of the laser weld seam 36 connect the two web flanges 15 and 33 in a materially bonded manner.
  • These short welds which are at least burnt through one of the two web flanges 15 and 33, lie transversely to the longitudinal extent of the running rail 1, as this Fig. 2 lets recognize. Due to the welding through the material is melted at the welding edges and connects cohesively with the other flange.
  • FIG. 3 shows a suitable for mounting the crane rail 1 to a supporting structure fitting 40 in an exploded perspective view.
  • To the fitting 40 includes two jaws 41a and 41b, and a support bracket 42.
  • the two jaws 41a and 41b are equal to each other, which is why subsequent only one of the two jaws 41 is described in detail.
  • the jaws 41 are punched and bent sheet metal parts and each jaw 41 forms a clamping flange 43, which merges on its outer side in use in a web 44, which in turn, in turn, a horizontally disposed support flange 45 connects.
  • the angle of the clamping flange 43 is selected so that in use Clamping flange 43 flat against the respective flange 27 and 28 of the support belt 4.
  • each clamping jaw 41 has a profile cross section which is constant over its length.
  • the mounting bracket 42 is composed of a back portion 48 and two legs 49 and 50 together.
  • the legs 49 and 50 project at right angles from the back part 48.
  • the back part 48 contains circular segment-shaped projections 51 and 52 on both sides.
  • a ball joint 56 can be connected to the fitting 40.
  • the ball joint 56 is commercially available and therefore need not be explained in detail.
  • bushes 57 and 58 are provided.
  • the axial securing of the cylinder pin 55 take over splints 59, which lead in the assembled state by corresponding pin holes 61 in the cylinder pin 55.
  • shims 62 and 63 can still be added.
  • the mounting of the fitting 40 on the crane rail 1 is done as follows:
  • the two jaws 41a and 41b are placed with their concave side against the support belt 4. They grip with their clamping flanges 43 under the flanges 27 and 28 of the support belt 4. Between the two jaws 41a and 41b, the support bracket 42 is inserted with the legs 49 and 50 pointing upwards in such a way that the circular segment-shaped extensions 51 and 52 in the cylinder-segment-shaped recesses 46 come to rest. Now 47 screws 67 and 68 are inserted through the holes contained in the web 47 and secured with nuts 69 and 71. In the assembled state, the support flanges 45 lie with their end edges together, so that the tightened screws 67 and 68 can clamp the clamping flanges 63 against the support belt 4.
  • a crane rail is made of a profile-rolled sheet steel strip.
  • the crane rail has a total of a top and a bottom chord, wherein on the top chord additionally a triangular in cross-section support belt is formed.
  • the steel edges are laser-welded on the bridge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
  • Belt Conveyors (AREA)
EP07819693A 2006-11-17 2007-11-08 Lasergeschweisste kranschiene für hängekatzen Not-in-force EP2108071B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006054682A DE102006054682A1 (de) 2006-11-17 2006-11-17 Lasergeschweißte Kranschiene für Hängekatzen
PCT/EP2007/009684 WO2008058669A2 (de) 2006-11-17 2007-11-08 Lasergeschweisste kranschiene für hängekatzen

Publications (2)

Publication Number Publication Date
EP2108071A2 EP2108071A2 (de) 2009-10-14
EP2108071B1 true EP2108071B1 (de) 2012-10-24

Family

ID=39106104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07819693A Not-in-force EP2108071B1 (de) 2006-11-17 2007-11-08 Lasergeschweisste kranschiene für hängekatzen

Country Status (6)

Country Link
US (1) US8146507B2 (zh)
EP (1) EP2108071B1 (zh)
CN (1) CN101595263B (zh)
DE (1) DE102006054682A1 (zh)
RU (1) RU2434988C2 (zh)
WO (1) WO2008058669A2 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11676262B2 (en) 2019-08-09 2023-06-13 Caterpillar Inc. Methods and systems for determiing part wear using a bounding model

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DE102006054682A1 (de) * 2006-11-17 2008-05-21 Stahl Cranesystems Gmbh Lasergeschweißte Kranschiene für Hängekatzen
DE102006058422A1 (de) * 2006-12-08 2008-06-26 Stahl Cranesystems Gmbh Schienenstoßverbinderanordnung
DE102008002524A1 (de) * 2008-06-19 2009-12-24 Zf Friedrichshafen Ag Stabilisator für ein Nutzfahrzeug
KR101056770B1 (ko) * 2009-03-23 2011-08-12 주식회사 미륭산업 롤 성형을 이용한 엘리베이터 도어 가이드레일의 제조방법 및 그 가이드레일
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11676262B2 (en) 2019-08-09 2023-06-13 Caterpillar Inc. Methods and systems for determiing part wear using a bounding model

Also Published As

Publication number Publication date
WO2008058669A3 (de) 2008-10-16
CN101595263A (zh) 2009-12-02
RU2434988C2 (ru) 2011-11-27
DE102006054682A1 (de) 2008-05-21
US20100107918A1 (en) 2010-05-06
CN101595263B (zh) 2012-05-30
US8146507B2 (en) 2012-04-03
RU2009122971A (ru) 2010-12-27
EP2108071A2 (de) 2009-10-14
WO2008058669A2 (de) 2008-05-22

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