EP0129497B1 - Kegelschrägwalzwerk - Google Patents

Kegelschrägwalzwerk Download PDF

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Publication number
EP0129497B1
EP0129497B1 EP19840730041 EP84730041A EP0129497B1 EP 0129497 B1 EP0129497 B1 EP 0129497B1 EP 19840730041 EP19840730041 EP 19840730041 EP 84730041 A EP84730041 A EP 84730041A EP 0129497 B1 EP0129497 B1 EP 0129497B1
Authority
EP
European Patent Office
Prior art keywords
rolling mill
rolling
axis
rolls
cross
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.)
Expired
Application number
EP19840730041
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0129497A2 (de
EP0129497A3 (en
Inventor
Walter Vom Dorp
Heinrich Steinbrecher
Karl Heinz Häusler
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6202182&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0129497(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0129497A2 publication Critical patent/EP0129497A2/de
Publication of EP0129497A3 publication Critical patent/EP0129497A3/de
Application granted granted Critical
Publication of EP0129497B1 publication Critical patent/EP0129497B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/20—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a non-continuous process,(e.g. skew rolling, i.e. planetary cross rolling)

Definitions

  • the invention relates to a tube rolling mill according to the preamble of claim 1, which is known as a 2-roller boot tapered cross-rolling mill, which, in contrast to the Mannesmann cross-rolling mill patented in 1885, has inclined roller axes - which have an angle of e.g. 30 ° to the roller axis - works and where the rollers therefore have the shape of a cone.
  • the tapered cross-rolling mill has the advantage of gentle material stress during punching and stretching. In both rolling processes, however, the degrees of stretching are limited, namely around 3: 1 for the barrel cross-rolling mill and around 5: 1 for the conical cross-rolling mill.
  • Barrel and taper rolling processes are known as cross rolling processes. It is characteristic of cross-rolling processes that the rolling material, i.e. the wall of the blanks or hollow blocks, flows in width when it is stretched. This flow into the width is inevitably limited by the use of fixed guide shoes or rotating guide disks - known as Diescher disks - and converted into an elongation in the longitudinal direction. In three-roll cross-rolling mills, the use of guides is not possible due to space constraints. Here the caliber opening, the so-called roll gap, is enclosed by the 3 rolls. If the wall or cave block wall thickness were reduced too much, the material would flow so far that it would flow into the spaces between the rolls, as a result of which the rolling process usually breaks down and incorrect rolling occurs.
  • the inclined angle of the rollers realized in the planetary cross-rolling mill could be considered in its tendency to be directed towards the longitudinal rolling. Some of the tensile forces that occur here when rolling pipes have an effect in the longitudinal direction of the rolling stock and thereby prevent it from spreading too much. To put it simply, this is the effect that with this type of rolling mill, the rolling of tube blanks with e.g. 10 times stretch allowed. Such a high aspect ratio makes it possible to roll with higher operating weights than with conventional cross-rolling mills, i.e. to produce longer slugs that e.g. Can be 70 m.
  • the well-known planetary cross-rolling mill has a special feature that it has a rotor in which there are 3 rolls that rotate around the tube.
  • the tube blank does not rotate. This arrangement makes it possible to run into the downstream stretch-reducing mill, where the finished pipe is manufactured, without intermediate heating.
  • the object of the invention is to design the conical diagonal rolling mill in such a way that the rolling speed and thus the output of the rolling mill can be increased significantly with an improved service life of the conical rolls.
  • Fig. 1 the rolling mill is shown in longitudinal section to the rolling stock axis.
  • the arrangement of the tapered rollers 1, 2, 3 can be seen, which are arranged at an oblique angle between 30 and 75 °, preferably 50 °. 2 that the drive shafts 4, 5, 6 for the tapered rollers 1, 2, 3 are led out laterally to one side of the rolling mill. On this side, they are connected to the drive unit 13 with the interposition of a gear 12.
  • the tapered rollers can be adjusted radially to the rolling stock axis by adjusting mechanisms 7, the pivot axis for the tapered rollers running parallel to the rolling stock axis.
  • the drive of the tapered rollers results from FIG. 4, specifically via bevel gears, the angle between each of the drive shafts 4, 5, 6 and the rolling stock axis in the horizontal plane preferably being 90 °.
  • a slat guide On the outlet side of the conical cross-rolling mill according to the invention, a slat guide is provided which consists of driven inclined rollers 8, 9, 10, drives 14, 15, 16 being connected to the inclined rollers via intermediate gears 17, 18, 19.
  • the guide has the task of guiding the billet 11 in synchronism with a speed and longitudinal speed corresponding to the speed and longitudinal speed at which the billet exits the rolling mill. With this guidance or support, the rolling mill does not need to apply the required turning and longitudinal force for the emerging billet during rolling. This prevents the blanks from twisting during rolling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
EP19840730041 1983-06-21 1984-04-16 Kegelschrägwalzwerk Expired EP0129497B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3322615 1983-06-21
DE19833322615 DE3322615A1 (de) 1983-06-21 1983-06-21 Kegelschraegwalzwerk

Publications (3)

Publication Number Publication Date
EP0129497A2 EP0129497A2 (de) 1984-12-27
EP0129497A3 EP0129497A3 (en) 1985-06-26
EP0129497B1 true EP0129497B1 (de) 1987-09-16

Family

ID=6202182

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840730041 Expired EP0129497B1 (de) 1983-06-21 1984-04-16 Kegelschrägwalzwerk

Country Status (3)

Country Link
EP (1) EP0129497B1 (ja)
JP (1) JPS603905A (ja)
DE (1) DE3322615A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2699435A1 (es) * 2017-09-05 2019-02-11 Eventos Andalucia 2020 S L Circuito cerrado y autónomo con corrientes y flujos internos de fluidos y cuerpos por empuje de Arquímedes con refuerzo magnético para generación de energía mecánica y eléctrica y procedimiento de funcionamiento
CN107716546A (zh) * 2017-10-24 2018-02-23 十堰市双兴净化器有限公司 一种用于螺旋叶片轧辊成型的设备及其工艺方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU733748A1 (ru) * 1978-01-02 1980-05-15 Предприятие П/Я Г-4361 Рабоча клеть стана поперечно-винтовой прокатки
DE3044672A1 (de) * 1980-11-27 1982-07-22 SMS Schloemann-Siemag AG, 4000 Düsseldorf Schraegwalzwerk zum reduzieren von voll- und hohlquerschnitten
JPS5944124B2 (ja) * 1980-10-11 1984-10-26 エス・エム・エス・シユレ−マン−ジ−マ−ク・アクチエンゲゼルシヤフト 内実又は中空横断面を減少せしめるための傾斜ロ−ル型圧延装置
DE3112781A1 (de) * 1981-03-31 1982-10-07 SMS Schloemann-Siemag AG, 4000 Düsseldorf Schraegwalzwerk zum reduzieren von voll- und hohlquerschnitten
DE3220921A1 (de) * 1982-06-03 1983-12-08 Kocks Technik Gmbh & Co, 4010 Hilden Walzwerksanlage mit einem planetenschraegwalzwerk

Also Published As

Publication number Publication date
EP0129497A2 (de) 1984-12-27
DE3322615A1 (de) 1985-02-21
JPS603905A (ja) 1985-01-10
EP0129497A3 (en) 1985-06-26

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