EP3049199B1 - Procédé de fabrication d'un élément de liaison et élément de liaison - Google Patents

Procédé de fabrication d'un élément de liaison et élément de liaison Download PDF

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Publication number
EP3049199B1
EP3049199B1 EP14765918.9A EP14765918A EP3049199B1 EP 3049199 B1 EP3049199 B1 EP 3049199B1 EP 14765918 A EP14765918 A EP 14765918A EP 3049199 B1 EP3049199 B1 EP 3049199B1
Authority
EP
European Patent Office
Prior art keywords
flange
casing
blank
connecting element
opposite
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
EP14765918.9A
Other languages
German (de)
English (en)
Other versions
EP3049199A1 (fr
Inventor
Michael Gövert
Stephan Drewes
Adrian Paton
Konstantinos Savvas
Mark Hirt
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.)
ThyssenKrupp Steel Europe AG
Original Assignee
ThyssenKrupp Steel Europe AG
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.)
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Publication date
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Publication of EP3049199A1 publication Critical patent/EP3049199A1/fr
Application granted granted Critical
Publication of EP3049199B1 publication Critical patent/EP3049199B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials
    • E04H12/08—Structures made of specified materials of metal
    • E04H12/085—Details of flanges for tubular masts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • B21D22/16—Spinning over shaping mandrels or formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/046—Connecting tubes to tube-like fittings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials
    • E04H12/08—Structures made of specified materials of metal
    • E04H12/10—Truss-like structures

Definitions

  • the invention relates to a method for producing a connecting element or node element, in particular for steel structures of towers, preferably for wind turbines, as well as a connection or node element.
  • poles and towers in particular on wind turbines or tension poles are regularly connected struts at different heights and angles to substantially upright pole structures such as corner stems.
  • Object of the present invention is to provide components, in particular connection or node elements, which avoid the disadvantages listed above.
  • the above-indicated object is achieved by a method for producing a connecting element, in particular for steel structures of Towers, preferably for wind turbines having the features of claim 1.
  • a flange and a flange integrally connected to the flange is produced. Subsequently, the flange of the opposite end of the shell is adapted to the contour of the component with which the jacket is to be connected.
  • a blank a blank, a pipe section or a forging blank is preferably used.
  • spinning rollers is understood to mean a production method of the forming technique which is used for producing mostly rotationally symmetrical hollow bodies.
  • Ronde tensioned in front of the end face of a spinning chuck.
  • the spinning chuck represents the tool that shapes the geometry of the component as an inner mold.
  • the chuck is then set in rotation together with the blank by the main spindle drive of the spinning machine.
  • the actual forming of the blank to the component takes place in several stages by a spinning tool, which is moved, for example, step by step from the center of the blank to the edge and back again. As this movement progresses in the axial direction, the blank gradually approaches the geometry of the chuck.
  • a spinning roller is often used as a tool and the movement is computer-controlled.
  • connection or node elements are provided which can be easily connected to adjacent components, have a force flow which is improved compared to the prior art and can be produced inexpensively.
  • connection of the connecting element in the desired position and position can be made possible by the opposite end of the flange is respectively adapted.
  • different sizes and lengths are possible at Corresponding trimming also allow a strong angled positioning.
  • a further advantage of the invention is that the connecting elements produced according to the invention have no weld seam, such as components produced by bending, so that the notch effect is reduced.
  • the advantages of the present invention are accordingly the reduction of the number of parts, the missing weld in the flange area and the improved power flow.
  • the material thickness of the flange is increased by pushing during the flow-forming against the material thickness of the blank.
  • the transition between the flange and the jacket is formed with a flowing wall thickness. Due to the individual adjustability of the wall thickness in the different areas of the connecting element special advantages are achieved. In particular, the compressive residual stresses introduced into the structure by the flow-forming process can be set, thus significantly improving fatigue strength.
  • the flange is formed on the inside, in which case it is preferable to use a blank as the blank.
  • the material thickness on the flange can be adjusted by stretching or pushing material from adjacent regions, in particular from regions which are allocated in the later trimming. As a result, the stability of the inner flange is increased while reducing the amount of waste.
  • the flange can be formed outboard.
  • a tapered transition region is then formed internally as a jacket, which is welded to one end of a mast construction, in particular a corner handle.
  • the sheath may be conical, with the flange formed at the tapered end of the sheath.
  • a particularly stable construction is achieved by connecting the flared end of the shell with a larger cross section to the mast construction, while the cross section of the flange is adapted to the strut to be attached.
  • the flange of the opposite end of the shell is adjusted by trimming to the outer contour of the component, including in particular a laser or water jet cutting or a plasma or flame cutting is applied.
  • the open end of the preferably conical jacket can be welded after the trimming to the outer contour of the mast construction, in particular the corner post.
  • the flange of the opposite end of the shell with a further flange.
  • the connecting element on both sides of the shell on a flange, wherein the first flange for connection to a strut and the further flange is provided for connection to a mast construction or with a corner post.
  • the further flange is formed by spin forming, whereby the advantages described above are also achieved at this end of the shell.
  • the described method can also be used to produce flange connections for any pipes.
  • This application gives the same advantages in terms of material thickness and stress properties.
  • the use of a pipe section or forging blank, instead of a blank for the flow-forming process for an inner flange also offers itself here.
  • the method is limited in terms of dimensions only by the size of the flow-forming machine. A correspondingly large Machine would also be able to produce the flanges for the tower main pipes, especially for wind turbines.
  • connection or node element 10 according to the invention is shown.
  • the illustrated connecting or node element 10, hereinafter referred to as the connecting element is particularly suitable for steel structures of towers, preferably for wind turbines, and in particular produced by a method according to the invention.
  • the connecting element 10 has a flange 12 and a jacket 14, wherein the jacket 14 integrally adjoins the flange 12 and wherein the flange 12 opposite end of the jacket 14 to the contour of the component of a steel structure, in particular a tubular Eckstiels 30 with round or polygonal cross-section is adapted to which the jacket 14 is to be connected.
  • the jacket 14 has a conical shape which also has a section 16 which is also conical but at a shallower angle.
  • the flange 12 is connected to the tapered end of the conical jacket 14.
  • a cylindrical portion 18 is provided, which connects the flange 12 with the jacket 14 and 16.
  • the flange 12 is formed lying inside and forms an opening 20. With the flange 12 can in a conventional manner Strive to be connected to a steel structure.
  • the flange 12 opposite opening of the shell 14 and the portion 16 is adapted for contact with a cylindrical construction, for example, a tubular Eckstiels 30.
  • the connecting element 10 can be welded to the corner post 30.
  • Fig. 4 is, in which in the Fig. 1 to 3 illustrated embodiment, the axis of the connecting element 10 largely aligned perpendicular to the axis of the Eckstiels 30.
  • Fig. 5 Now shows a further embodiment of an inventive embodiment of the connecting element 10.
  • the jacket 14 has a cylindrical portion 22 which is separated obliquely to the axis of the connecting element 10.
  • the connecting member 10 can be connected at an angle with the corner post 30.
  • Fig. 6 shows a schematic representation of the basic sequence of a method according to the invention for producing a connecting or node element 10, in particular for steel structures of towers, preferably for wind turbines, in which from a blank 40 by means of a flow-forming process a flange 12 and integrally on the flange 12 subsequent coat 14 is produced.
  • the flange 12 opposite end of the jacket 14 is adapted to the contour of the component, such as a corner handle 30, with which the jacket 14 is to be connected. This last step is not shown in the drawing.
  • a blank 40 made of steel is used as the blank.
  • the blank 40 is clamped between a spindle 50 of a flow-forming machine and a spindle 52 which shapes the geometry of the connecting element 10 as an inner mold. With the schematically illustrated pressing tools 54 and 56, the blank 40 is reshaped so that after completion of the flow-forming the desired shape of the connecting element 10 is achieved,
  • the forming step, with the material thickness of the flange 12 is increased by pushing during the flow-spinning against the material thickness of the round blank 40.
  • the starting material of the blank 40 is thinner than the later formed flange 12.
  • material is shifted from the laterally arranged trim 58 and thus produces a greater thickness of the flange 12. This has the particular advantage that less trim 58 is obtained from the middle and the ironed outer jacket 14 can be made of thinner material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wind Motors (AREA)

Claims (14)

  1. Procédé de fabrication d'un élément de liaison (10) destiné à des structures de tours en acier, de préférence des éoliennes, procédé dans lequel
    - une collerette (12) et une enveloppe (14, 16) raccordée d'une seule pièce à la collerette sont fabriquées à partir d'une ébauche au moyen d'un procédé de fluotournage,
    - l'épaisseur de matière de la collerette est augmentée par rapport à l'épaisseur de matière de l'ébauche par coulissement lors du fluotournage et
    - l'extrémité de l'enveloppe qui est opposée à la collerette est adaptée au contour du composant auquel l'enveloppe doit être reliée.
  2. Procédé selon la revendication 1, dans lequel une ébauche ronde, une partie tubulaire ou une ébauche de forgeage est utilisée comme ébauche.
  3. Procédé selon l'une des revendications 1 et 2, dans lequel la transition entre la collerette et l'enveloppe est conçue avec une épaisseur de paroi fluide.
  4. Procédé selon l'une des revendications 1 à 3, dans lequel la collerette est conçue pour être située à l'intérieur.
  5. Procédé selon l'une des revendications 1 à 3, dans lequel la collerette est conçue pour être située à l'extérieur.
  6. Procédé selon l'une des revendications 1 à 5, dans lequel la collerette est conçue pour être conique et la collerette est conçue à l'extrémité amincie de l'enveloppe.
  7. Procédé selon l'une des revendications 1 à 6, dans lequel l'extrémité de l'enveloppe qui est opposée à la collerette est adaptée au contour extérieur du composant.
  8. Procédé selon l'une des revendications 1 à 7, dans lequel l'extrémité de l'enveloppe qui est opposée à la collerette est pourvue d'une autre collerette.
  9. Procédé selon la revendication 8, l'autre collerette est formée par fluotournage.
  10. Elément de liaison de structures en acier de tours, de préférence d'éoliennes, qui est fabriqué par un procédé selon l'une des revendications 1 à 9, l'élément de liaison comprenant
    - une collerette (12) et
    - une enveloppe (14, 16),
    - l'enveloppe (14, 16) se raccordant d'une seule pièce la collerette (12),
    - l'épaisseur de matière de la collerette étant augmentée par rapport à l'épaisseur de matière de l'ébauche par coulissement pendant le fluotournage et
    - l'extrémité de l'enveloppe (14, 16) qui est opposée à la collerette (12) étant adaptée au contour du composant auquel l'enveloppe doit être reliée.
  11. Elément de liaison selon la revendication 10, caractérisé en ce que la collerette (12) est conçue pour être située à l'intérieur.
  12. Elément de liaison selon la revendication 10, caractérisé en ce que la collerette (12) est conçue pour être située à l'extérieur.
  13. Elément de liaison selon l'une des revendications 11 et 12, caractérisé en ce que l'enveloppe (14, 16) est au moins partiellement conique et la collerette (12) est formée à l'extrémité amincie de l'enveloppe (14, 16).
  14. Elément de liaison selon l'une des revendications 11 à 13, caractérisé en ce que l'extrémité de l'enveloppe (14, 16) qui est opposée à la collerette (12) est pourvue d'une autre collerette (12).
EP14765918.9A 2013-09-24 2014-09-11 Procédé de fabrication d'un élément de liaison et élément de liaison Active EP3049199B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013110528.9A DE102013110528A1 (de) 2013-09-24 2013-09-24 Verfahren zum Herstellen eines Verbindungselements sowie Verbindungselement
PCT/EP2014/069361 WO2015043968A1 (fr) 2013-09-24 2014-09-11 Procédé de fabrication d'un élément de liaison et élément de liaison

Publications (2)

Publication Number Publication Date
EP3049199A1 EP3049199A1 (fr) 2016-08-03
EP3049199B1 true EP3049199B1 (fr) 2019-11-06

Family

ID=51539259

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14765918.9A Active EP3049199B1 (fr) 2013-09-24 2014-09-11 Procédé de fabrication d'un élément de liaison et élément de liaison

Country Status (5)

Country Link
US (1) US10352060B2 (fr)
EP (1) EP3049199B1 (fr)
CN (1) CN105579160A (fr)
DE (1) DE102013110528A1 (fr)
WO (1) WO2015043968A1 (fr)

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DE102013110529B4 (de) * 2013-09-24 2020-07-02 Thyssenkrupp Steel Europe Ag Strebenanbindung für ein Bauteil einer Stahlkonstruktion
DE102015113870B4 (de) 2015-08-20 2017-07-06 Thyssenkrupp Ag Verfahren zum Herstellen eines Gelenkaußenteils, Gelenkaußenteil und Werkzeug

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Also Published As

Publication number Publication date
US10352060B2 (en) 2019-07-16
US20160215517A1 (en) 2016-07-28
WO2015043968A1 (fr) 2015-04-02
CN105579160A (zh) 2016-05-11
DE102013110528A1 (de) 2015-03-26
EP3049199A1 (fr) 2016-08-03

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