WO2011059851A1 - Tête de positionnement de laminoir - Google Patents

Tête de positionnement de laminoir Download PDF

Info

Publication number
WO2011059851A1
WO2011059851A1 PCT/US2010/055050 US2010055050W WO2011059851A1 WO 2011059851 A1 WO2011059851 A1 WO 2011059851A1 US 2010055050 W US2010055050 W US 2010055050W WO 2011059851 A1 WO2011059851 A1 WO 2011059851A1
Authority
WO
WIPO (PCT)
Prior art keywords
quill
bushing
laying head
recesses
bearings
Prior art date
Application number
PCT/US2010/055050
Other languages
English (en)
Inventor
Thomas C. Wojtkowski, Jr.
Peter N. Osgood
Original Assignee
Siemens Industry, Inc.
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 Siemens Industry, Inc. filed Critical Siemens Industry, Inc.
Publication of WO2011059851A1 publication Critical patent/WO2011059851A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • B21C47/10—Winding-up or coiling by means of a moving guide
    • B21C47/14—Winding-up or coiling by means of a moving guide by means of a rotating guide, e.g. laying the material around a stationary reel or drum
    • B21C47/143—Winding-up or coiling by means of a moving guide by means of a rotating guide, e.g. laying the material around a stationary reel or drum the guide being a tube

Definitions

  • This invention relates to laying heads of the type employed in rolling mills to form a hot rolled product into a helical formation of rings.
  • a stationary support structure contains a hollow quill rotatably supported between axially spaced bearings.
  • the quill carries a curved guide pipe having an entry end aligned with the rotational axis of the quill, and a curved intermediate section projecting in a cantilever fashion from the quill to an exit end spaced radially from the quill axis.
  • the quill is rotatably driven by known means, with the guide pipe being configured to receive a product at its entry end and to form the product into a continuous formation of rings emerging from its exit end.
  • Roller bearings are typically employed to rotatably support the quill. Under high speed operating conditions, e.g., when handling products traveling at speeds exceeding lOOm/sec, experience has shown that the roller bearings are prone to producing vibrations that disturb operation of the laying head.
  • a rotating member 10 is surrounded by a bushing 12.
  • the rotating member is subjected to an applied load "L”, and low pressure oil 16 is introduced between the rotating member and bushing via a recess 17 in the interior bushing surface.
  • the rotating member forms a single pressure field "P" formed as a result of a combination of parameters, including the rotational speed of the rotating member, the applied load, the diametrical clearance between the rotating member and bushing, and the viscosity of the oil.
  • the force integrated from the pressure field exactly balances out the applied load, with the centerlme 18 of the rotating member 10 being offset from the centerline 20 of the bushing 12, resulting in an eccentricity "E” that is a function of the aforesaid, parameters.
  • the objective of the present invention is to provide a roiling mill laying equipped, with a novel and improved bearing that overcomes or at least substantially mitigates the problems associated with mechanical roller bearings and. hydrodynamic oil film bearings.
  • the quill of a laying head is rotatably supported, by multiple bearings, with at least one bearing being a hydrostatic oil film bearing.
  • at least one bearing being a hydrostatic oil film bearing.
  • a plurality of discrete pressure fields are formed by high pressure oil being actively pumped into angularly spaced recesses in the bushing.
  • the recesses are arranged in a manner such that their associated pressure fields urge the quill into concentric alignment with the bushing where it is held during continued operation of the laying head, thus minimizing and. ideally eliminating vibration due to eccentricity.
  • Figure 1 is a diagrammatic view, partially broken away, of a laying head equipped with a hydrostatic oil film bearing in accordance with the present invention
  • Figure 2 is a diagrammatic sectional view taken through the hydrostatic oil film bearing on line 2-2 of Figure 1;
  • Figure 3 is a diagrammatic cross sectional view of a liydrodynamic oil film bearing.
  • a laying head. 22 comprises a quill 24 rotatable about a central axis "X".
  • a guide pipe 26 is carried by the quill
  • the guide pipe has an entry end 26a aligned with axis X, and a curved intermediate section 26b leading to an exit end 26c spaced radially from axis X.
  • the quill is contained within a stationary support structure 28 and is supported for rotation about axis X by axially spaced bearings 30, 32.
  • Bearing 30 is a conventional roller thrust bearing
  • bearing 32 is a hydrostatic oil film bearing in accordance with the present invention.
  • the quill is rotatable driven by a conventional drive train including meshed bevel gears 34, 36 powered by a gear box and motor (not shown).
  • the hydrostatic oil film bearing comprises a bushing 38 surrounding the journal surface of the quill 24.
  • a plurality of angularly separated recesses 40 are provided in the interior surface of the bushing.
  • the recesses 40 are connected via supply conduits 42 to a distribution header 44, which in turn is connected to a high pressure oil supply 46.
  • the high pressure oil supplied, to the recesses 40 creates discrete pressure fields 48 acting to urge the quill into concentric alignment with the bushing, where it is held, irrespective of the speed at which the quill is driven, during continued operation of the laying head. Eccentricity is thus eliminated, or at least minimized to tolerable levels.
  • the discrete pressure fields 48 also serve, during start up, to lift the journal surface of the quill from the bushing surface, thus reducing friction and eliminating the need for increased starting torque.
  • At least three recesses 40 are provided in the bushing 38.
  • the recesses are equally spaced around the bushing circumference.
  • the quill can be maintained, in substantially constant concentric alignment with the bushing, and this can be achieved independently of the speed at which the laying head is being operated.
  • vibration problems due to whirl in hydrodynamic bearings and clearances in mechanical roller bearings are eliminated or at the very least, significantly minimized to an extent that they no longer impede high speed operation of the laying head. This is achieved with the added benefit of relatively low starting friction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Support Of The Bearing (AREA)

Abstract

La présente invention concerne une tête de positionnement de laminoir (22) comprenant un fourreau (24) pouvant se mettre en rotation autour d'un axe central (X). Un conduit de guidage (26) supporté par le fourreau (24) est configuré et conçu pour former un produit se déplaçant longitudinalement dans une série continue d'anneaux. Des paliers disposés à distance axialement (30, 32) supportent le fourreau (24) sur une structure de support stationnaire (28) en vue de la rotation autour de son axe. Au moins un des paliers (30, 32) comprend un palier à film d'huile hydrostatique.
PCT/US2010/055050 2009-11-12 2010-11-02 Tête de positionnement de laminoir WO2011059851A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/617,086 US20110108652A1 (en) 2009-11-12 2009-11-12 Rolling mill laying head
US12/617,086 2009-11-12

Publications (1)

Publication Number Publication Date
WO2011059851A1 true WO2011059851A1 (fr) 2011-05-19

Family

ID=43532984

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/055050 WO2011059851A1 (fr) 2009-11-12 2010-11-02 Tête de positionnement de laminoir

Country Status (3)

Country Link
US (1) US20110108652A1 (fr)
TW (1) TW201134568A (fr)
WO (1) WO2011059851A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104174792A (zh) * 2013-05-23 2014-12-03 北京京诚瑞信长材工程技术有限公司 一种吐丝机
WO2016192344A1 (fr) * 2015-06-01 2016-12-08 中冶赛迪工程技术股份有限公司 Tête de pose
RU2651552C2 (ru) * 2013-06-20 2018-04-20 ПРАЙМЕТАЛЗ ТЕКНОЛОДЖИЗ ЮЭсЭй ЭлЭлСи Укладочная головка прокатного стана

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130075513A1 (en) * 2011-09-26 2013-03-28 Siemens Industry, Inc. Rolling mill coil forming laying head with path or pipe having dissimilar materials composite construction
ITMI20122100A1 (it) * 2012-12-10 2014-06-11 Danieli Off Mecc Testa forma-spire
BR112017015151A2 (pt) 2015-01-19 2018-01-23 Russula Corporation sistema de cabeçote de assentamento para formação de bobina e método de uso
CN114352639B (zh) * 2021-12-29 2022-08-16 汉威广园(广州)机械设备有限公司 吐丝机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3917581A1 (de) * 1989-05-30 1990-12-06 Nippon Kokan Kk Verfahren zur verringerung der vibration von antriebswellen, insbesondere auf schiffen und wellenlager zur durchfuehrung des verfahrens
US5590848A (en) 1994-04-26 1997-01-07 Morgan Construction Company High speed laying head
EP1175945A2 (fr) * 2000-07-21 2002-01-30 SMS Demag AG Tête de formation de boucles avec tube de dépot pour fil laminé
WO2005084842A1 (fr) 2004-02-24 2005-09-15 Danieli & C. Officine Mecchaniche S.P.A. Tete d'enroulement avec dispositif d'amortissement des vibrations
US7086783B2 (en) 2001-12-14 2006-08-08 Morgan Construction Company Laying head bearing with offset preloading
WO2006125793A1 (fr) * 2005-05-25 2006-11-30 Danieli & C. Officine Meccaniche S.P.A. Tete de pose equipee d'un mecanisme rotatif a rainures multiples

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122772A (en) * 1971-12-13 1978-10-31 Dahlgren Harold P Hydrostatic bearer for printing press

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3917581A1 (de) * 1989-05-30 1990-12-06 Nippon Kokan Kk Verfahren zur verringerung der vibration von antriebswellen, insbesondere auf schiffen und wellenlager zur durchfuehrung des verfahrens
US5590848A (en) 1994-04-26 1997-01-07 Morgan Construction Company High speed laying head
EP1175945A2 (fr) * 2000-07-21 2002-01-30 SMS Demag AG Tête de formation de boucles avec tube de dépot pour fil laminé
US7086783B2 (en) 2001-12-14 2006-08-08 Morgan Construction Company Laying head bearing with offset preloading
WO2005084842A1 (fr) 2004-02-24 2005-09-15 Danieli & C. Officine Mecchaniche S.P.A. Tete d'enroulement avec dispositif d'amortissement des vibrations
WO2006125793A1 (fr) * 2005-05-25 2006-11-30 Danieli & C. Officine Meccaniche S.P.A. Tete de pose equipee d'un mecanisme rotatif a rainures multiples

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104174792A (zh) * 2013-05-23 2014-12-03 北京京诚瑞信长材工程技术有限公司 一种吐丝机
CN104174792B (zh) * 2013-05-23 2016-04-27 北京京诚瑞信长材工程技术有限公司 一种吐丝机
RU2651552C2 (ru) * 2013-06-20 2018-04-20 ПРАЙМЕТАЛЗ ТЕКНОЛОДЖИЗ ЮЭсЭй ЭлЭлСи Укладочная головка прокатного стана
WO2016192344A1 (fr) * 2015-06-01 2016-12-08 中冶赛迪工程技术股份有限公司 Tête de pose

Also Published As

Publication number Publication date
US20110108652A1 (en) 2011-05-12
TW201134568A (en) 2011-10-16

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