EP0234204A3 - Method and apparatus for straightening a rail in a roller straightening machine - Google Patents

Method and apparatus for straightening a rail in a roller straightening machine Download PDF

Info

Publication number
EP0234204A3
EP0234204A3 EP87100231A EP87100231A EP0234204A3 EP 0234204 A3 EP0234204 A3 EP 0234204A3 EP 87100231 A EP87100231 A EP 87100231A EP 87100231 A EP87100231 A EP 87100231A EP 0234204 A3 EP0234204 A3 EP 0234204A3
Authority
EP
European Patent Office
Prior art keywords
rail
straightening
roller
minima
maxima
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Withdrawn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
EP87100231A
Other languages
German (de)
French (fr)
Other versions
EP0234204A2 (en
Inventor
Wilhelm Dr.-Ing. Heller
Reinhard Dr.-Ing. Schweitzer
Gerfried Dipl.-Ing. Vanino
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.)
Krupp Stahl AG
Original Assignee
Krupp Stahl 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.)
Filing date
Publication date
Application filed by Krupp Stahl AG filed Critical Krupp Stahl AG
Publication of EP0234204A2 publication Critical patent/EP0234204A2/en
Publication of EP0234204A3 publication Critical patent/EP0234204A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
    • B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Wire Processing (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zum Rollenrichten einer Eisenbahnschiene in einer Rollenrichtmaschine, bei dem die Schiene bei ihrem Durchlauf durch die versetzt zueinander angeordneten Ober- u. Unterrollen mehrfach durch abwechselnde Einzelbiegungen über Kopf and Fuß gegensätzlichen Biegeverformungen (Maxima, Minima) un­ terworfen wird. The invention relates to a method for roller straightening a railroad track in a roller straightener which the rail is offset as it passes through the mutually arranged upper u. Underroll multiple times through alternating individual bends over head and foot opposing bending deformations (maxima, minima) un is thrown.

Erfindungsgemäß wird die Schiene während des Durch­ laufs derart über den Schienenkopf durchgebogen und es werden die Maxima und Minima derart aufeinander abge­ stimmt, daß die Schiene mit einer konstanten Endkrümmung mit einem Radius von 15 bis 60 m in das letzte Richtdreieck einläuft, in dem diese Krümmung wieder zu einer Geraden gebogen wird. Mit diesem Richtverfahren wird erreicht, daß die Schiene an der Schienenfußseite nahezu frei von Längs­ zugeigenspannungen ist. Dadurch erhält die Schiene eine bessere Bruchsicherheit und Gestaltsfestigkeit. According to the rail during the through so bent over the rail head and it the maxima and minima are matched to one another in this way true that the rail has a constant end curvature with a radius of 15 to 60 m in the last directional triangle runs in, in which this curvature again becomes a straight line is bent. With this straightening process it is achieved that the rail on the rail foot side almost free of length tensions. This gives the rail one better break resistance and design stability.

EP87100231A 1986-02-21 1987-01-10 Method and apparatus for straightening a rail in a roller straightening machine Withdrawn EP0234204A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863605648 DE3605648A1 (en) 1986-02-21 1986-02-21 METHOD AND DEVICE FOR STRAIGHTING A RAILWAY RAIL IN A ROLLER STRAIGHT MACHINE
DE3605648 1986-02-21

Publications (2)

Publication Number Publication Date
EP0234204A2 EP0234204A2 (en) 1987-09-02
EP0234204A3 true EP0234204A3 (en) 1989-08-30

Family

ID=6294659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100231A Withdrawn EP0234204A3 (en) 1986-02-21 1987-01-10 Method and apparatus for straightening a rail in a roller straightening machine

Country Status (2)

Country Link
EP (1) EP0234204A3 (en)
DE (1) DE3605648A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT409230B (en) 1998-07-27 2002-06-25 Inst Verformungskunde Und Huet LINEAR DIRECTION PROCESS
DE10053933B4 (en) * 2000-10-31 2005-01-27 Thyssen Krupp Gleistechnik Gmbh Method for straightening a rail
CN102049434B (en) * 2009-11-06 2013-10-23 攀钢集团攀枝花钢铁研究院有限公司 Straightening roller, device for straightening steel rail and method for rolling steel rail
CN103157702B (en) * 2013-03-23 2016-09-07 鞍钢股份有限公司 Straightening control method for bending end of heavy rail
CN110899383B (en) * 2019-10-30 2021-06-15 太原科技大学 Unfolding straightening method for arc section of thin-walled cylindrical part with outer transverse ribs
CN110899382B (en) * 2019-10-30 2021-06-15 太原科技大学 Unfolding straightening equipment for arc section of thin-walled cylindrical part with outer transverse ribs
CN117139420B (en) * 2023-10-31 2023-12-29 潍坊特钢集团有限公司 Straightening device for hot-rolled round steel

Also Published As

Publication number Publication date
EP0234204A2 (en) 1987-09-02
DE3605648A1 (en) 1987-08-27

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Effective date: 19900301

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HELLER, WILHELM, DR.-ING.

Inventor name: VANINO, GERFRIED, DIPL.-ING.

Inventor name: SCHWEITZER, REINHARD DR.-ING.