EP0594270B1 - Walzgerüst zum Kaliber- und Masswalzen von stab- oder rohrförmigem Walzgut - Google Patents

Walzgerüst zum Kaliber- und Masswalzen von stab- oder rohrförmigem Walzgut Download PDF

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Publication number
EP0594270B1
EP0594270B1 EP93250253A EP93250253A EP0594270B1 EP 0594270 B1 EP0594270 B1 EP 0594270B1 EP 93250253 A EP93250253 A EP 93250253A EP 93250253 A EP93250253 A EP 93250253A EP 0594270 B1 EP0594270 B1 EP 0594270B1
Authority
EP
European Patent Office
Prior art keywords
roll
worm
drive
shafts
plane
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 - Lifetime
Application number
EP93250253A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0594270A1 (de
Inventor
Fritz Dipl.-Ing Witteck
Jörg Dipl.-Ing. Sievering
Walter Cox
Manfred Dipl.-Ing. Appel
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
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0594270A1 publication Critical patent/EP0594270A1/de
Application granted granted Critical
Publication of EP0594270B1 publication Critical patent/EP0594270B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
    • B21B13/10—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane
    • B21B13/103—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane for rolling bars, rods or wire

Definitions

  • the invention relates to a roll stand, in particular for caliber and dimension rolling of rod or tubular rolling stock, according to the preamble of patent claim 1.
  • Roll stands of this type are known and are described, for example, in German Offenlegungsschrift 37 03 756.
  • the known roll stand has three rollers arranged in a star shape, which can be adjusted radially by rotating the otherwise stationary roller axes in eccentric bearing journals, the adjustment of all roller axes being simultaneously possible via bevel gear teeth.
  • the drive torque of the known rolling mill is introduced via a spur gear pair, the driving spur gear being arranged in front of or behind the roll stand and meshing with the driven spur gear arranged on the roll axis.
  • the distribution of the drive torque from the one driven roller shaft to the other roller shafts takes place via bevel gears which are arranged on each of the roller shafts.
  • Adjustable roll stands enable a significant reduction in the number of rolls otherwise required for different piercing diameters. This makes modifications unnecessary and the idle times can be shortened considerably.
  • a disadvantage of rolling mills of the generic type is that the engagement depth of the meshing drive bevel gears is changed by the eccentric adjustment, so that the loads are inevitably less than with rigid, i.e. H. not radially adjustable roll stands.
  • due to the changing tooth mesh a change in the quality of the rolling stock is to be expected due to the adjustment of the rolls, which cannot be tolerated in particular in calibration and sizing mills.
  • a roll stand with the features specified in the preamble of claim 1 is known from US-A 5 144 827.
  • the present invention has for its object to improve a rolling stand, in particular for the calibration and dimensional rolling of rod or tubular rolling stock, so that the rolling process allows the rolls to be adjusted radially without change, given the extreme load-bearing capacity of the rolling stand the backlash of the drive bevel gears is possible and thus the highest quality of the rolling stock can be achieved even with rolling stock that is difficult to roll and at low temperatures.
  • worm drives rotating the eccentric bushes are provided for eccentric adjustment of the rollers, which mesh with two worm wheels arranged on different roller shafts and fastened on the eccentric bushes, all worm drives being adjustable together.
  • the advantage of the solution according to the invention is to be seen in the separation of the roller plane and the gear plane, the drive torque being distributed in the gear plane via toothings free of radial adjustments and the drive torque already split being forwarded via spur gear pairs to the roller shafts arranged in the second plane. In this way, very high rolling torques can be transmitted, and particularly good results can be expected from the intended load distribution.
  • the entire eccentric drive for the radial adjustment of the rollers is separated from the drive level and is directly related to the roller level, the radial adjustment also providing for a load distribution of the adjustment drive. This means that the adjustment forces are not passed on from roller shaft to roller shaft, but are directly introduced into each roller shaft.
  • the worm gears provided for this mesh each with worm wheels of adjacent roller shafts and thus represent a closed flow of power that is braced together.
  • worm drives For the common adjustment of all worm drives, according to another feature of the invention, it is provided that they are each mounted in rotatable externally toothed spindle nuts, the external teeth of which mesh with the internal toothing of a ring gear encompassing all spindle nuts, the ring gear in turn being rotatable by a worm gear meshing with the external toothing of the ring gear .
  • the ring gear can be rotated very easily from the outside via the worm drive, which results in a simultaneous adjustment movement of all worm drives for radial adjustment of the rollers.
  • the drive torque for rotating the worm drives is simultaneously passed on to all worm drives, so that a symmetrical and exact adjustment of the rollers is possible via the worm wheels attached to the eccentric bushings.
  • FIG 1 denotes the housing of the roll stand according to the invention, in which the rolls 2, 3 and 4, each offset by 120 degrees to one another, are mounted on the roll shafts 5, 6 and 7.
  • the three rollers close the caliber 8.
  • worm wheels 12a, 12b, 13a, 13b, 14a and 14b are arranged.
  • the worm wheels 12a to 14b are rotatable via worm drives 15, 16 and 17, one worm gear X 15, 16 or 17 meshing with the worm wheels 12a, 14b or 12b, 13a or 14a, 13b, so that the pairings of the worm drive with the both worm wheels are adjustable together.
  • the worm drives 15, 16 and 17 will be described in more detail later.
  • spur gears 18, 19 and 20 are rotatably connected to the rollers coaxially to the roller shafts 5, 6 and 7, via which the drive torque of the roller shafts 5, 6 and 7 can be introduced.
  • the spur gears 18, 19 and 20 are in a second Gear plane arranged paired spur gears, which is described with reference to Figure 2.
  • Figure 2 is a section through the roll stand of Figure 1 in this second parallel plane. In this plane, three drive shafts 21, 22 and 23 are arranged at an angle of 120 degrees to one another.
  • the drive torque is introduced into a shaft via the clutch 24 and distributed by the bevel gears 25, 26 and 27, 28.
  • the initiation of the radial adjustment of the rollers 2, 3 and 4 arranged in the other plane can also be seen in the gear plane.
  • the spindle 33 which is toothed at its end, is rotated via the coupling 32, the toothing 34 engaging in the external toothing of a ring gear 35 and rotating it coaxially with the roller shaft.
  • the ring gear 35 is provided with an internal toothing 36 which, at 37, 38 and 39, meshes with the external toothing of spindle nuts 40, 41, 42, which in turn receive the worm drives 15, 16 and 17.
  • FIG. 3 shows the two planes in a partially sectioned view rotated by 90 degrees, the gear plane running at 43 and the roller plane at 44.
  • the spur gear 18 seated on the roller shaft 5 is indicated at 18, which meshes with the spur gear 29 of the gear plane.
  • the roller visible in the illustration is designated by 2.
  • the engagement of a worm gear 15 in the worm wheel 12a can also be seen; the worm drive 17 is shown in detail in the partial section below.
  • the spindle 33 engages in the external toothing of the ring gear 35 and rotates it around the roller shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
EP93250253A 1992-09-30 1993-09-20 Walzgerüst zum Kaliber- und Masswalzen von stab- oder rohrförmigem Walzgut Expired - Lifetime EP0594270B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4233557 1992-09-30
DE4233557A DE4233557C1 (enrdf_load_stackoverflow) 1992-09-30 1992-09-30

Publications (2)

Publication Number Publication Date
EP0594270A1 EP0594270A1 (de) 1994-04-27
EP0594270B1 true EP0594270B1 (de) 1996-07-24

Family

ID=6469740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93250253A Expired - Lifetime EP0594270B1 (de) 1992-09-30 1993-09-20 Walzgerüst zum Kaliber- und Masswalzen von stab- oder rohrförmigem Walzgut

Country Status (3)

Country Link
EP (1) EP0594270B1 (enrdf_load_stackoverflow)
JP (1) JPH06210309A (enrdf_load_stackoverflow)
DE (2) DE4233557C1 (enrdf_load_stackoverflow)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3298846B2 (ja) * 1999-06-24 2002-07-08 川崎製鉄株式会社 線材・棒鋼用圧延機
DE10015339B4 (de) * 2000-03-28 2004-03-04 Kocks Technik Gmbh & Co Walzgerüst für Walzstraßen zum Walzen von metallischen Rohren, Stäben oder Drähten
DE10015340C2 (de) * 2000-03-28 2003-04-24 Kocks Technik Walzgerüst für Walzstraßen zum Walzen von metallischen Rohren, Stäben oder Drähten
DE10307199B3 (de) * 2003-02-20 2004-08-19 Sms Meer Gmbh Walzgerüst zum Walzen von langgestrecktem Gut
CN100352569C (zh) * 2005-12-22 2007-12-05 中冶集团北京冶金设备研究设计总院 一种单传动输入轴压下量可调的三辊轧机
CN101983785B (zh) * 2010-11-02 2013-03-06 大连三高科技发展有限公司 带调节内辊的排辊成型机组
US8684075B2 (en) 2011-02-17 2014-04-01 Baker Hughes Incorporated Sand screen, expandable screen and method of making
US8664318B2 (en) 2011-02-17 2014-03-04 Baker Hughes Incorporated Conformable screen, shape memory structure and method of making the same
US9017501B2 (en) 2011-02-17 2015-04-28 Baker Hughes Incorporated Polymeric component and method of making
US9044914B2 (en) 2011-06-28 2015-06-02 Baker Hughes Incorporated Permeable material compacting method and apparatus
US8720590B2 (en) 2011-08-05 2014-05-13 Baker Hughes Incorporated Permeable material compacting method and apparatus
US8721958B2 (en) 2011-08-05 2014-05-13 Baker Hughes Incorporated Permeable material compacting method and apparatus
EP4537949A1 (de) 2023-10-10 2025-04-16 SMS group GmbH Profilwalzwerk und walzverfahren zum walzen von profilen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU371991A1 (ru) * 1971-07-16 1973-03-01 В. Н. Выдрин, В. Г. Дукмасов, В. С. Нагорнов , Р. Н. Яхнин Чел бинский политехнический институт Прокатная клеть с многовалковым калибром
SU401431A1 (ru) * 1972-02-07 1973-10-12 В. Н. Выдрин, В. Г. Дукмасов, В. С. Нагорное , Р. Н. Яхнин Чел бинский политехнический институт Прокатная клеть с многовалковым калибром
DE2259143C3 (de) * 1972-12-02 1980-08-07 Friedrich Kocks Gmbh & Co, 4000 Duesseldorf Walzgerüst zum Walzen von im wesentlichen stangenförmigem Gut
DE3703756A1 (de) * 1987-02-07 1988-08-18 Kocks Technik Walzgeruest zum walzen von stab- oder rohrfoermigem gut
JP2667043B2 (ja) * 1990-07-12 1997-10-22 住友重機械工業株式会社 圧延機のロールスタンド

Also Published As

Publication number Publication date
DE4233557C1 (enrdf_load_stackoverflow) 1993-09-16
JPH06210309A (ja) 1994-08-02
DE59303311D1 (de) 1996-08-29
EP0594270A1 (de) 1994-04-27

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