EP2942318A1 - Structure de rail de grue et grue - Google Patents

Structure de rail de grue et grue Download PDF

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Publication number
EP2942318A1
EP2942318A1 EP15166745.8A EP15166745A EP2942318A1 EP 2942318 A1 EP2942318 A1 EP 2942318A1 EP 15166745 A EP15166745 A EP 15166745A EP 2942318 A1 EP2942318 A1 EP 2942318A1
Authority
EP
European Patent Office
Prior art keywords
supporting means
girder
crane
track structure
cavity
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.)
Withdrawn
Application number
EP15166745.8A
Other languages
German (de)
English (en)
Inventor
Petteri Lempiäinen
Mikko Erikkilä
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.)
Erikkila Oy
Original Assignee
Erikkila Oy
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 Erikkila Oy filed Critical Erikkila Oy
Publication of EP2942318A1 publication Critical patent/EP2942318A1/fr
Withdrawn legal-status Critical Current

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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
    • B66C7/00—Runways, tracks or trackways for trolleys or cranes
    • B66C7/02—Runways, tracks or trackways for trolleys or cranes for underhung trolleys or cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
    • B66C11/04—Underhung trolleys
    • B66C11/06—Underhung trolleys running on monorails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C7/00—Runways, tracks or trackways for trolleys or cranes
    • B66C7/08—Constructional features of runway rails or rail mountings

Definitions

  • the invention concerns in general the technical field of crane solutions. Especially the invention concerns safety solution for crane tracks.
  • crane tracks are manufactured of track elements coupled together in some known manner.
  • the track elements also known as track profiles, are traditionally manufactured of iron, which has provided hard enough structure in order to meet the challenges in lifting heavy objects.
  • the problem with the iron made track elements is that they are heavy to manufacture, but also to build up.
  • the crane bridge is many times moved manually in the crane track from a first location to another the operation requires lot of power and energy.
  • Fig. 1 illustrates an example of a crane solution in which the crane structure, i.e. the girder 101, is to be fastened in a ceiling with fasteners 103.
  • a hoist 105 is coupled in the girder 101 with a trolley 107.
  • the trolley 107 is arranged to travel along a runway arranged inside the girder 101 by means of shaping the inner part of the girder 101 accordingly.
  • the crane solution in Fig. 1 is an example and there are multiple types of crane solutions available for need.
  • the most common system has two parallel runways 101, trolleys 107 inside them and girder 101 fixed to those trolleys.
  • the trolley 107 is arranged to travel along this girder (so called bridge crane).
  • Fig. 2 discloses a cross-sectional illustration on a crane track solution according to a prior art solution.
  • the figure discloses the girder 101, the fastener 103 and the trolley 107.
  • the trolley 107 comprises a body part 201 into which tyres 203 are fastened with a shaft.
  • the sizes of the tyres 203, as well as material of the tyres, are advantageously adjusted to the size of the runway so that the rolling resistance is minimized.
  • the hoist 105 is configured to be fastened in the trolley 107 with the shaft 205.
  • Fig. 2 discloses how the runway for moving the trolley 107 along the girder 101 is achieved by shaping the girder 101.
  • the control for moving the trolley 107 along the girder 101 and the control for using the hoist 105 may be arranged manually or by means of a controller, which provides control signals for motors within the trolley and the hoist.
  • the delivery of control signals to the respective motors can be arranged either in wired or wireless manner by using known communication technologies.
  • the trolley together with hoist and load may fall down, which causes damages in the crane solution and causes costs in a form of repairing costs but also in the form of downtime of the system. Moreover, the fall down of the mentioned parts may cause personal injuries to personnel operating the system.
  • An objective of the invention is to present a crane track structure and a crane for improving safety. Another objective of the invention is that the crane track structure and the crane improve safety by increasing an endurance of the crane track structure with the present invention.
  • a crane track structure comprising a girder
  • a portion of the girder forms a runway providing at least one surface for at least one tyre of a trolley configured to travel at least partly within the girder, the said portion of the girder further comprising at least one cavity running at least partly along the length of the girder wherein the crane track structure further comprising at least one supporting means arranged in the at least one cavity.
  • the supporting means may be configured to be fastened within the cavity in at least one of the following manner: chemically, mechanically.
  • the mechanical fastening may be arranged by modifying a surface of at least one of the following: an inner wall of the cavity of the girder, supporting means.
  • the mechanical fastening may also be arranged with at least one of the following: wedge-shaped structure of the supporting means, wedge or sleeve in at least one end of the supporting means.
  • the structure may further comprise at least one end plate mountable with the girder, wherein the at least one end plate comprises at least one through hole for conveying the supporting means through the end plate in order to fastening the supporting means with the end plate.
  • the fastening of supporting means may be arranged with a fastening element against the end plate.
  • the fastening of supporting means may also be arranged by bending at least part of the supporting means extending through the at least one through hole of the end plate against the end plate.
  • the supporting means within the structure may be at least one of the following: a flat bar, a tube, a cable, a wire or a wire rope.
  • a crane comprising a crane track structure as described above.
  • the present invention relates to a utilization of a shape of a crane track profile for establishing a novel safety structure.
  • Fig. 3 illustrates an example of a track profile in which the solution according to an example of the present invention is implemented.
  • a term girder 101 in order to refer to track profile for emphasizing that the referred part in the crane solutions is the one in which the trolley 107 travels.
  • the trolley 107 comprises the body part 201 and the tyres 203 coupled with the shaft to the body part 201.
  • the profile of the girder 101 is such that it comprises at least one cavity 301 traveling at least part of a length of the girder 101 and the location of the cavity 301 within the girder 101 is at least partly below the runway of the trolley 107.
  • the runway of the trolley 107 refers to opening within the girder 101, which provides necessary surface or surfaces 303 on which the tyres 203 of the trolley 107 may roll when the trolley 107 is moved along the runway.
  • At least part of the at least one cavity 301 is configured to be equipped with a supporting means 305, which increases support to the structure and thus mitigating the risk that the girder 101 breaks down in the course of time.
  • the supporting means 305 may advantageously be selected so that it is manufactured from a material having stronger durability than the girder 101 itself, the idea of equipping the girder 101 with the supporting means improves the safety even if the girder 101 breaks down.
  • the supporting means 305 may increase the durability of the girder 101 to maintain its shape as well as to provide support for the trolley 107 if some break down of the girder 101 happens.
  • the supporting means 305 are a flat bar, a tube, a cable, a wire or a wire rope.
  • the flat bar or the tube may have a hollow or a solid structure.
  • the supporting means 305 may be implemented by having one or more mentioned elements in any combination arranged in the at least one cavity 301 of the girder 101.
  • the material of the supporting means may be, but is not limited to, iron, any alloy comprising iron, composite material, carbon fiber or nylon.
  • the size of the supporting means 305 is such that it may be push in the cavity by providing additional force to the supporting means 305.
  • the supporting means 305 and the inner wall of the cavity 301 comprise such a mutual friction that the supporting means 305 locks removably within the cavity 301.
  • Such an arrangement provides the necessary support also in case of breakdown of the girder 101 at some location.
  • the supporting means 305 may be locked in the cavity 301 with some compound applicable for fastening two parts together.
  • the locking may be arranged by providing applicable glue between the inner wall of the cavity 301 and the supporting means 305, when the supporting means 305 are installed in the cavity 301 and thus fastening the supporting means 305 in the cavity 305.
  • the supporting means 305 may be equipped with some mechanical fastening means.
  • the mechanical fastening means may e.g. be a hook arranged in at least one end of the supporting means 305, which may be hooked over the girder 101 at the respective end. It is also possible to arrange a specific anchor structure for the hook on the girder 101. Any similar mechanical fastening means to the hook may be used, such as an applicable wedge or sleeve incorporated at the end or ends of the supporting means 305.
  • a lamella structure may be arranged on the surface of the supporting means 305 for gaining the frictional effect and thus locking the elements together as tightly as needed. It is also possible to modify the inner surface of the cavity 301 in order to increase the friction between the elements.
  • the supporting means 305 may be shaped in such a manner that it locks within the cavity 301.
  • An example of the applicable cross-sectional shape of the supporting means may be a triangle with optimal dimensions for the cavity i.e. the apexes of the triangle touch the inner surface of the cavity along the length of the supporting means 301.
  • the supporting means 305 may be wedge-shaped so that it is possible to convey in the cavity from one end of the girder 101 and by locking the other end with some locking means, the supporting means 305 is adjusted in place.
  • the cavity may be shaped in a manner that it provides locking arrangement into at least one direction with the supporting means 305.
  • the cavity may e.g. be wedge-shaped into which an applicable supporting means 305 are inserted.
  • Fig. 4 illustrates a crane track solution with a girder 101 equipped with the supporting means 305 according to the present invention in which end plates 401 are arranged to at least limit the runway of the trolley 107.
  • the end plates 401 may be fastened with the girder 101 with known means, such as bolts, screws or similar.
  • joint element such as a track joint
  • the joint elements may be used in the similar manner as the end plates in providing tools for fastening the supporting means in the structure.
  • end plate shall be considered to cover any joint element used in crane tracks.
  • Fig. 5a illustrates a more detailed example of the present invention as a side view, when an end plate 401 is utilized in fastening the supporting means 305 within the structure.
  • the supporting means 305 is such that it is flexible to adjust in the structure.
  • the supporting means 305 may be a wire rope in the present example.
  • An applicable through hole is arranged in the end plate 401 in order to convey the supporting means through the end plate 401.
  • the fastening element 501 is advantageously such that it comprises a locking mechanism for the supporting means 305.
  • the fastening element 501 may comprise necessary number of through holes or grooves into which the supporting means 305 are to be adjusted and the locking may be arranged with screws 503, for example, as illustrated in Fig. 5b .
  • the type of the fastening element 501 may differ from the one illustrated in Fig. 5a and Fig. 5b .
  • the fastening element 501 may be one or more bolts for which counter-holes are arranged in the end plate 401.
  • the supporting means 305 may be fastened to the end plate 401 by tightening the one or more bolts when the supporting means 501 is arranged between the bolts and the end plate 401.
  • the utilization of end plates 401 for fastening the supporting means 305 in the structure has also the advantage in providing a further stabilizing effect into the structure as a whole. This is because the supporting means 305 combines the end plates and thus stabilizes the whole structure.
  • the supporting means 305 when it is manufactured from rigid material, may be conveyed through the end plates 401 via an applicable through holes and fastened by bending the supporting means 305 along the surface of the end plate 401.
  • the bending may be implemented with any known manner by providing the necessary power for the supporting means 305.
  • inventive solutions are provided in order to fasten supporting means 305 to a crane track structure. Even if the inventive solutions are mainly described separately in the description above, it is possible to combine the separate solutions in any manner within the inventive idea defined in the independent patent claims. As a non-limiting example it is possible to utilize glue in fastening the supporting means 305 with the girder 101, but in addition to that it is possible to use the end plates for additionally fastening the supporting means 305 within the structure.
  • the supporting means 305 may be arranged only in some parts of the girder 101.
  • they can be arranged to those locations into which the stress is directed to due to operational reasons.
  • the described structure advantageously prevents, or at least slows down, the drop down of the trolley if the runway of the trolley at least partly breaks down.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
EP15166745.8A 2014-05-08 2015-05-07 Structure de rail de grue et grue Withdrawn EP2942318A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20145426A FI20145426A (fi) 2014-05-08 2014-05-08 Nosturiratarakenne ja nosturi

Publications (1)

Publication Number Publication Date
EP2942318A1 true EP2942318A1 (fr) 2015-11-11

Family

ID=53040465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15166745.8A Withdrawn EP2942318A1 (fr) 2014-05-08 2015-05-07 Structure de rail de grue et grue

Country Status (2)

Country Link
EP (1) EP2942318A1 (fr)
FI (1) FI20145426A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114057102A (zh) * 2021-11-29 2022-02-18 诺力智能装备股份有限公司 一种适用于直线行走的轻量型起吊装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19747123A1 (de) * 1997-10-24 1999-05-06 Vetter Foerdertechnik Gmbh Säulenschwenkkran
DE10337121B3 (de) * 2003-08-11 2005-06-09 Manfred Josef Wallner Kranbahnschiene
DE202007013320U1 (de) * 2007-09-21 2007-11-22 BECON Vermögenverwaltungs GmbH Laufschiene für Fahrwagen
USD572372S1 (en) * 2006-10-18 2008-07-01 Eepos Gmbh Rail profile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19747123A1 (de) * 1997-10-24 1999-05-06 Vetter Foerdertechnik Gmbh Säulenschwenkkran
DE10337121B3 (de) * 2003-08-11 2005-06-09 Manfred Josef Wallner Kranbahnschiene
USD572372S1 (en) * 2006-10-18 2008-07-01 Eepos Gmbh Rail profile
DE202007013320U1 (de) * 2007-09-21 2007-11-22 BECON Vermögenverwaltungs GmbH Laufschiene für Fahrwagen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114057102A (zh) * 2021-11-29 2022-02-18 诺力智能装备股份有限公司 一种适用于直线行走的轻量型起吊装置

Also Published As

Publication number Publication date
FI20145426A (fi) 2015-11-09

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