EP3148919B1 - Kranträger für einen kran - Google Patents

Kranträger für einen kran Download PDF

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Publication number
EP3148919B1
EP3148919B1 EP15728376.3A EP15728376A EP3148919B1 EP 3148919 B1 EP3148919 B1 EP 3148919B1 EP 15728376 A EP15728376 A EP 15728376A EP 3148919 B1 EP3148919 B1 EP 3148919B1
Authority
EP
European Patent Office
Prior art keywords
crane
crane girder
wall
girder
external wall
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.)
Active
Application number
EP15728376.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3148919A1 (de
Inventor
Georg Klapper
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.)
Hans Kuenz GmbH
Original Assignee
Hans Kuenz 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 Hans Kuenz GmbH filed Critical Hans Kuenz GmbH
Priority to MA40690A priority Critical patent/MA40690B1/fr
Priority to PL15728376T priority patent/PL3148919T3/pl
Publication of EP3148919A1 publication Critical patent/EP3148919A1/de
Application granted granted Critical
Publication of EP3148919B1 publication Critical patent/EP3148919B1/de
Active 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
    • 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

  • the present invention relates to a crane girder for a crane, wherein the crane girder has a hollow profile with an outer wall enclosing a cavity and is elongated, and the outer wall of the crane girder, viewed in a cross section through the crane girder, forms a bulging outwards at least partially for reduction air resistance, wherein the outer wall, seen in the cross section through the crane girder, has two opposing sections with outwardly bulging shape, which are interconnected by means of two opposing straight wall sections of the outer wall, and the crane girder at least one tread for at least one impeller a trolley of a lifting tool of the crane has.
  • crane girders for particular large cranes or cranes that have to carry large loads, such as gantry cranes, overhead cranes or jib cranes are the crane girders often formed in the prior art in the so-called box construction as a hollow profile.
  • This hollow profile has a cavity and a cavity surrounding this outer wall.
  • the outer walls are usually assembled in a rectangular cross section of flat sheets.
  • Beulsteifen In order to prevent deflection or bending of the sheets as a result of stability problems by pressure or shear stress, reinforcing strips in the form of so-called Beulsteifen, which extend in the longitudinal direction of the crane girder, attached, in particular welded to the outer wall usually in the outer wall , The number of Beulsteifen can be very different and depending on the size of the carrier usually between 2 and 20. The disadvantage of this Beulsteifen is that they increase the one hand, the weight of the crane girder and on the other hand, the manufacturing cost in the manufacture of the crane girder.
  • a crane girder in the form of a box construction in which the two lateral web plates are formed as concave inwardly curved shells to increase the torsional stiffness.
  • a crane girder which has a circularly curved hollow profile, wherein two opposing sections are connected to each other outwardly bulging shape by means of straight wall sections.
  • the straight wall sections form a downwardly open slot in which the rails of the crane girder and the trolley are arranged.
  • the object of the invention is to improve a crane girder of the type mentioned above to the extent that the drive power required to move the crane girder is as low as possible and large forces can be introduced into the crane girder with little deformation of the crane girder.
  • the invention proposes that the opposing sections facing outwardly bulging shape in an operating position of the crane girder up and down and the straight wall sections limit the crane girder in the operating position to the sides, the wall sections are vertically extending and the tread at, is preferably arranged on one of the straight wall sections of the outer wall and / or supported.
  • the crane girders according to the invention are manufactured in a kind of box construction, so that they also have a hollow profile with a cavity surrounding an outer wall.
  • the at least partially outwardly bulging shape for reducing the air resistance could also be referred to as at least partially aerodynamically outwardly bulging shape.
  • the up and down in the operating position of the crane girder sections can be designed as so-called upper and lower chords. These can then serve to receive and transmit the resulting from the load transfer into the crane girder and the weight of the crane girder bending moments. In particular, in such embodiments is achieved by the outwardly bulging shape a particularly high stability with relatively low weight of the crane girder.
  • the straight wall portions which connect the two opposing portions with outwardly curved shape may also be referred to as webs or side webs.
  • a static improvement is achieved by the outwardly bulging shape of the crane girder in some areas.
  • partially outwardly bulging shape of the outer wall is the Stability of the crane girder compared to a rectangular cross-section of the outer wall increased with the same material and the same wall thickness.
  • the attachment of reinforcing bodies in the form of the aforementioned Beulsteifen on the outer wall can be completely or at least partially dispensed with.
  • a higher stability and thus load bearing capacity of the crane girder is achieved without the weight of the crane girder increasing.
  • inside the cavity surrounded by the outer wall can also be arranged inside walls.
  • Preferred variants of a crane girder according to the invention with said tread advantageously extend horizontally in the operating position of the crane girder.
  • Essentially horizontal in this context is conveniently the horizontal per se and a deviation thereof from a maximum of +/- 5 °, preferably to understand by +/- 1 ° from the horizontal.
  • Crane beams on which the wheels of the trolley of the crane's lifting gear are supported are often referred to as the main carrier of the crane.
  • the invention brings in such main carriers the advantage that the wheel loads of the wheels of the trolley can be well received by the crane carrier.
  • inventive crane girders are elongated. That is, their length extension is significantly greater than their width and thickness extension.
  • preferred Embodiments of inventive crane girder see, as known per se in the prior art, that along the longitudinal extent of the crane girder at certain intervals so-called baffle plates are arranged in the cavity on which the outer wall is supported or fixed.
  • the partition plates are conveniently arranged so that they are normal, so orthogonal to the direction of the longitudinal extension of the crane girder. The distance between the bulkhead plates can be selected as needed.
  • Another advantage of the at least partially outwardly bulging shape of the outer wall of the crane girder is that this significantly reduces the formation of wind and / or vibration noise or the like compared to conventional crane girders with a rectangular cross section of the outer wall.
  • Particularly preferred embodiments of the invention provide that the outer wall of the crane girder seen in a cross section through the crane girder anywhere has a bulging outward shape.
  • the crane girder is moved, as a rule by the crane, in at least one direction of movement relative to the air surrounding it.
  • the entire crane can be moved together with the crane girder and / or the crane girder is moved relative to other components of the crane.
  • a width extension of the outer wall of the crane girder is bounded parallel to the direction of movement by a first end and a second end of the widthwise extension of the outer wall, and seen in the cross section through the crane girder, a distance measured orthogonally to the direction of movement between opposing portions of the outer wall of at least one of the ends the widthwise extension, preferably from both ends of the widthwise extension, of the cavity towards a central region of the cavity increases at least in regions.
  • the crane girder can be moved in two or more directions of movement.
  • the outwardly bulging shape of the outer wall could also be referred to as an outwardly curved shape of the outer wall, which can be rounded but this rounded outward or curved shape can not.
  • the at least partially outwardly bulging shape of the outer wall there are thus a wide variety of embodiments.
  • the at least partially outwardly bulging or arched shape of the outer wall, seen in the cross section through the crane girder is rounded.
  • the at least partially outwardly bulging shape of the outer wall, seen in the cross section through the crane girder is polygonal.
  • An upwardly bulging shape further has the advantage that no or only little rainwater or other precipitation can collect on the crane girder and thus no or only a small additional load of the crane carrier can arise from rainwater lying on it.
  • the crane girder is arranged slightly inclined in the operating position in its longitudinal direction.
  • The, in Sections of the outer wall of the crane girder formed outwardly bulging form sections may be formed in sections arcuate or otherwise curved. As mentioned above, also polygonal or other forms of bulge are conceivable.
  • Preferred embodiments of the invention provide that a width extension of the outer wall of the crane girder is parallel to the direction of movement greater than or less than a thickness extension of the outer wall of the crane girder orthogonal to the direction of movement.
  • the width extension and the thickness extension are each the maximum extent of the outer wall in the respective direction.
  • the longitudinal extent of the crane girder and the width of the outer wall extension and the thickness of the outer wall are expediently orthogonal to each other.
  • the width extension of the outer wall in a horizontal direction is greater than the thickness extension in a vertical direction, then this is generally particularly favorable in the sense of reducing the wind load.
  • the thickness extension of the outer wall in the vertical direction greater than their width extension in the horizontal direction to design may be useful if particularly high static requirements are to be placed on the crane girder.
  • the thickness extent of the outer wall seen in the vertical direction in said cross section of the crane girder is between 50 and 80% of the width extent of the outer wall in the horizontal direction.
  • the width extent of the outer wall in the horizontal direction in the mentioned cross section can be seen by the crane girder, values from 2.5m to 10m, preferably from 3m to 6m.
  • the length of the crane girder may, for example, be from 10 m to 150 m.
  • their thickness in the operating position in the vertical direction is advantageously between 20 and 60%, preferably between 30 and 40%, the said thickness extension of the outer wall in the vertical direction.
  • the outer wall is seen in preferred embodiments, seen in cross-section through the crane girder, at least with respect to an axis of symmetry axisymmetric.
  • the aforementioned direction of movement is conveniently parallel to the or one of the axes of symmetry.
  • the cross-section through the crane girder is preferably considered in a plane to which the longitudinal extent of the crane girder is normal or orthogonal.
  • the outer wall of the crane girder is preferably partially or completely made of steel. To produce the outer wall, steel sheets with thicknesses between 8 and 20mm are favorably used.
  • Crane beams according to the invention can be used in a wide variety of types of cranes.
  • the invention also relates to a crane which has at least one crane girder according to the invention.
  • This is particularly preferably a gantry crane or a bridge crane or a jib crane.
  • the crane girders of the invention may be both substantially vertical columns, e.g. for connecting a chassis of the crane with a main carrier or substantially horizontally extending main carrier.
  • a gantry crane or bridge crane crane of the invention may have a single, but also two or more main carrier in the form of crane girders according to the invention.
  • Fig. 1 shows a crane 3 in the form of a gantry crane, in which the inventively designed crane girder 1 is designed as in the operating position shown substantially horizontally arranged main carrier.
  • This main carrier 1 has, as in Fig. 4 more clearly shown, a hollow section 4, in which the cavity 5 is enclosed by an outer wall 6.
  • the outer wall 6 of the crane girder is, as in the cross section through the crane girder 1 according to Fig. 4 , is easy to see, formed with a bulging at least partially outward form to reduce the air resistance.
  • the upper and lower chords forming portions 10 and 11 are provided with a bulging outward shape.
  • the outer wall 6 consists of the straight wall sections 12.
  • the main carrier 1 according to Fig.
  • the crane girder 1 in the first embodiment shown two treads 13, on which the wheels 14 of the trolley 15 run along. How very good in Fig. 6 can be seen, the treads 13 are formed here as rails.
  • the running surfaces or rails 13 are supported on the straight wall sections 12, which could also be referred to as a web or side web, the outer wall 6. In particular, because of the vertical extent of the straight wall sections 12 can be entered into this very large loads, without this resulting in a significant deformation of the crane girder 1.
  • the crane girder 1 is suspended in any case on the two yokes 22 in this embodiment.
  • the yokes 22 are in turn supported on the trolleys 23, as with the prior art supports 21.
  • the horizontal connections 25 may also be referred to as a head carrier.
  • the crane 3 can be moved in the directions of movement 7.
  • the inventive, at least partially outwardly bulging shape of the crane girder 1 whose air resistance is significantly reduced, so that drive energy can be saved for moving the entire crane 3 including crane girder 1 and less drive power is required.
  • the crane girder 1 is longitudinally extended in the longitudinal direction 27 in the embodiment shown. In the gantry cranes shown here, the direction of movement 7 thus extends orthogonally to the longitudinal extent 27.
  • Fig. 2 indicates one Fig. 1 in the basic construction similar embodiment of a gantry crane with only one main carrier. It will only apply to the differences here Fig. 1 received. Otherwise that applies too Fig. 1 Said.
  • the essential difference between the embodiment according to Fig. 1 and according to Fig. 2 lies in that in Fig. 2 a known strut is provided by means of the struts 16, to which the crane girder 1 is additionally suspended. This is useful when particularly heavy loads attached to the trolley 15 and to be transported with this and / or if, as shown here, the crane girder 1 in the horizontal direction is very far beyond the space between the supports 21, so a very large Longitudinal extent has in the longitudinal direction 27.
  • Fig. 3 is the embodiment of Fig. 2 further modified.
  • the crane girder 1 according to the invention has a crane girder section 24, which is additionally pivotable in the vertical direction shown by the double arrow 31.
  • the drive for pivoting the crane girder section 24 in the directions according to the double arrow 31 is not shown here. But it can be done as known.
  • the crane girder section 24 of the crane girder 1 can be moved not only in the direction of movement 7 but also in the direction of movement according to the double arrow 31.
  • the crane girder 1 is designed so that it in a movement of the crane 3 together with the crane girder 1 in the directions of movement.
  • a crane 3 according to the invention does not necessarily have to be just a gantry crane. Rather, the crane girder section 24 is a crane girder of a jib crane. The embodiment according to Fig. 3 is thus a combination of gantry crane and jib crane.
  • the invention can also be implemented in numerous other types of cranes, in particular in overhead cranes and other jib cranes, without this needing to be explicitly described in detail here.
  • Fig. 4 shows, as I said, the cross section through the crane girder 1, which in the embodiments according to Fig. 1 to 3 is used.
  • the illustrated cross-section is shown in a normal to the respective longitudinal extent of the main carrier 1 arranged plane. This also applies to the below-explained cross sections according to the FIGS. 5 and 6 ,
  • the upper and lower belt forming portions 10 and 11 are each provided with an outwardly bulging shape for reducing air resistance.
  • the section 10 of the outer wall 6 points upward in the operating position shown here and also ensures that rainwater or other precipitation can collect, if at all, only in a very small area of the crane girder 1 towards the rails or running surfaces 13.
  • the main carrier 1 can be made slightly inclined in its longitudinal direction 27.
  • the outwardly bulging shape of the sections 10 and 11 in addition to the reduction of air resistance also ensures a high stability of the main carrier 1, so that it can absorb large static forces, without this inside the enclosed by the outer wall 6 cavity 5 still Beulsteifen or other Reinforcements must be provided.
  • the outwardly bulging portions 10 and 11 also reduce the susceptibility of the crane girder 1 Vibration excitation to produce noises.
  • the crane girder 1 is designed in the form of the hollow profile 4.
  • the outer wall 6 surrounds the cavity 5.
  • the outer wall 6 is composed of the two already mentioned sections 10 and 11 and of the straight wall sections 12 together.
  • the straight wall sections 12 are here in this embodiment as a double T-beam, as they are known from steel construction, executed. Through them very large, generated by the load of the trolley 15 forces can be absorbed through the tread 13.
  • the width extension 17 of the outer wall 16 is seen in the direction parallel to the direction of movement 7, bounded by the first end 8 and the second end 9.
  • the distance 19 measured orthogonally to the direction of movement 7 increases at least in regions between opposite sections of the outer wall 6 from both ends 8 and 9 of the width extension 17 of the cavity 5 towards the central region 20 of the cavity , By way of example, a few distances 19, which are to be measured orthogonally to the width extension 17, are shown.
  • the cross section of this crane girder 1 has two axes of symmetry 28. One of them, namely the horizontal, runs parallel to the direction of movement 7 and thus also parallel to the width extension 17.
  • Fig. 5 shows a first alternative to the cross section according to Fig. 4 ,
  • the two opposing upper and lower chords so the sections 10 and 11 in the cross section shown not rounded but polygonal shaped to realize the inventive outwardly bulging shape of the outer wall 6. Otherwise that applies too Fig. 4 Said.
  • Fig. 6 shows a further variant in the form of a modification of the Fig. 4 ,
  • a longitudinal groove 29 of the outer wall 6 is provided in the lower flange 11.
  • supply lines or the like can be performed. Nevertheless, here too, at least in sections, that a distance 19 measured orthogonal to the direction of movement 7 between opposite sections of the outer wall 6 increases from both ends 8 and 9 of the width extension 17 of the cavity 5 towards a central region 20 of the cavity 5.
  • the cross-section through the main carrier is designed like a lens, at least in a first approximation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
  • Jib Cranes (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
EP15728376.3A 2014-05-26 2015-05-19 Kranträger für einen kran Active EP3148919B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MA40690A MA40690B1 (fr) 2014-05-26 2015-05-19 Poutre pour grue
PL15728376T PL3148919T3 (pl) 2014-05-26 2015-05-19 Pomost suwnicy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA408/2014A AT515824B1 (de) 2014-05-26 2014-05-26 Kranträger für einen Kran
PCT/AT2015/000075 WO2015179887A1 (de) 2014-05-26 2015-05-19 Kranträger für einen kran

Publications (2)

Publication Number Publication Date
EP3148919A1 EP3148919A1 (de) 2017-04-05
EP3148919B1 true EP3148919B1 (de) 2018-06-27

Family

ID=53385401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15728376.3A Active EP3148919B1 (de) 2014-05-26 2015-05-19 Kranträger für einen kran

Country Status (19)

Country Link
US (1) US10479654B2 (uk)
EP (1) EP3148919B1 (uk)
JP (1) JP6486460B2 (uk)
KR (1) KR102379493B1 (uk)
CN (1) CN106573763B (uk)
AT (1) AT515824B1 (uk)
AU (1) AU2015268103B2 (uk)
BR (1) BR112016027697B1 (uk)
CA (1) CA2947620C (uk)
ES (1) ES2684628T3 (uk)
HU (1) HUE039204T2 (uk)
MA (1) MA40690B1 (uk)
MX (1) MX2016015541A (uk)
MY (1) MY182180A (uk)
PL (1) PL3148919T3 (uk)
PT (1) PT3148919T (uk)
RU (1) RU2651394C1 (uk)
UA (1) UA115952C2 (uk)
WO (1) WO2015179887A1 (uk)

Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
CN107585678A (zh) * 2017-10-24 2018-01-16 河北工业大学 弧形桥架及桥式起重机
CN108502740A (zh) * 2018-04-18 2018-09-07 丁瑞 一种可拓展式龙门吊架
DE102018127827A1 (de) * 2018-11-07 2020-05-07 Jakob Handte Werkzeugmaschine mit strömungsbeeinflussendem Anbau
CN113003436B (zh) * 2021-02-26 2023-04-07 泉州芸台科技有限公司 一种防主梁变形的电动起重机
KR102528987B1 (ko) * 2021-07-28 2023-05-04 주식회사 제이디엔지니어링 메가급 항만 물류 자동화 구축을 위한 항만 기초구조물 시공 방법
CN114411647A (zh) * 2021-12-24 2022-04-29 中海广瀛工程物流有限公司 一种用于门座机移位托架工装

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Also Published As

Publication number Publication date
MA40690B1 (fr) 2018-10-31
MY182180A (en) 2021-01-18
KR102379493B1 (ko) 2022-03-25
PL3148919T3 (pl) 2019-01-31
CA2947620A1 (en) 2015-12-03
PT3148919T (pt) 2018-08-02
US10479654B2 (en) 2019-11-19
RU2651394C1 (ru) 2018-04-19
US20170081153A1 (en) 2017-03-23
BR112016027697B1 (pt) 2022-02-22
BR112016027697A2 (uk) 2017-08-15
JP6486460B2 (ja) 2019-03-20
CA2947620C (en) 2022-04-19
KR20170010771A (ko) 2017-02-01
AT515824B1 (de) 2016-06-15
MX2016015541A (es) 2017-05-23
ES2684628T3 (es) 2018-10-03
AU2015268103A1 (en) 2017-01-05
MA40690A (fr) 2017-04-05
JP2017516733A (ja) 2017-06-22
UA115952C2 (uk) 2018-01-10
WO2015179887A1 (de) 2015-12-03
CN106573763B (zh) 2018-06-15
AT515824A1 (de) 2015-12-15
CN106573763A (zh) 2017-04-19
HUE039204T2 (hu) 2018-12-28
EP3148919A1 (de) 2017-04-05
AU2015268103B2 (en) 2019-12-12
BR112016027697A8 (pt) 2021-09-28

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