EP0501600B1 - Walzgerüst - Google Patents

Walzgerüst Download PDF

Info

Publication number
EP0501600B1
EP0501600B1 EP92250042A EP92250042A EP0501600B1 EP 0501600 B1 EP0501600 B1 EP 0501600B1 EP 92250042 A EP92250042 A EP 92250042A EP 92250042 A EP92250042 A EP 92250042A EP 0501600 B1 EP0501600 B1 EP 0501600B1
Authority
EP
European Patent Office
Prior art keywords
support shaft
interchangeable
bearings
rolling stand
support
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
EP92250042A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0501600A1 (de
Inventor
Dieter Figge
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 EP0501600A1 publication Critical patent/EP0501600A1/de
Application granted granted Critical
Publication of EP0501600B1 publication Critical patent/EP0501600B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/07—Adaptation of roll neck bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
    • B21B31/103—Manipulators or carriages therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/14—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by pivotally displacing

Definitions

  • the invention relates to a roll stand, in particular for hot rolling profiles.
  • Fine steel and wire consisting of two interconnected roller stands, in which the rollers are rotatably mounted on pairs of supporting shafts in eccentric bushings, the supporting shafts being divided into interchangeable sections that support the roller and non-replaceable sections mounted in the roller stand, and the sections are quickly detachably coupled to one another .
  • the invention is concerned with the problem of changing rolls on roll stands for hot rolling profiles, fine steel and wire.
  • both rollers, together with their bearings and chocks are usually moved out of the roll stand, which is expediently done with the aid of a whale changing device.
  • the drive cardan shafts must first be detached from the rollers; the same applies to the media lines that have to be separated.
  • the roller set extended in this way is reworked in the workshop, while a new roller set is moved into the stand and coupled to the drive becomes. Pipes for the media supply are connected, the roll gap is adjusted and the fittings are adjusted.
  • a solution is provided by overhung roller disks because their interchangeability makes them easier to handle. They have disadvantages with large rolling pressures because the roller shaft with one side deflects under load. The main bearings are also subjected to higher loads in such rolling stands, which shortens their service life.
  • cassette stands are also mentioned in which storage, adjustment and rolling are accommodated in a compact structural unit. After releasing the drive elements and the media supply, these roller cassettes are completely replaced.
  • This type of construction requires a high investment outlay due to the expensive replacement parts and nevertheless manual intervention when changing.
  • a generic roll stand consists of two parallel roll stands, between which roller rings that can be pushed onto pairs of support shafts are mounted. To replace the rollers with the support shafts, these are of split design, with some of the roller shafts remaining in the roll stands and another part - interchangeable with the rollers - with the first-mentioned parts can be coupled. For this purpose, it is provided to open one side of the roll stand by the roll stand arranged there being movable outwards in the axial direction of the rolls. After releasing the coupling connection between the replaceable and non-replaceable parts of the support shafts, the former can be removed.
  • the object of the present invention is to design a roll stand of the generic type in such a way that a roll change in the shortest possible time is made possible both manually and automatically, without the stand rigidity of the rolls mounted on both sides being adversely affected.
  • the interchangeable support shaft sections of the support shafts after releasing their coupling with the non-interchangeable support shaft sections and axial displacement can be pivoted about their non-drive bearings in angular positions in which the interchangeable support shaft sections of the support shafts with their rollers can be pulled out in the axial direction from the chocks, past the opposite scaffold stand.
  • the proposal of the invention enables a very rigid scaffold because no movable scaffold parts are provided.
  • the support shafts are stored in conventional bearings, of which only the one remote from the drive Bearing must be designed swivel is simple; only a coupling between the exchangeable and non-exchangeable supporting shaft section of the supporting shaft is required.
  • the support shaft with the rollers can be pulled out of the chocks both manually and automatically.
  • the bearings remote from the drive are preferably designed as eccentric bushings with a spherical seat which can be rotated on all sides and in which roller bearings are integrated.
  • the non-exchangeable supporting shaft sections of the supporting shafts are mounted on the drive side in the scaffold stand in spherical roller bearings, which can be fixed in a central position in the replaced position of the supporting shafts.
  • the latter is intended to prevent the supporting shaft sections remaining in the scaffold from being loaded by the drive shafts in their spherical roller bearings in positions which prevent a reinstallation of the replaced supporting shafts when the supporting shafts are removed.
  • a possible determination of the non-exchangeable supporting shaft section of the supporting shaft can take place via deep groove ball bearings, which come into action during the changing of the supporting shaft - and only then.
  • the manual coupling is provided between the sections of the supporting shaft via steep tapered seats provided on their end faces with driver strips, the tapered surfaces being axially clampable against one another via threaded bolts.
  • These steep tapered seats enable the centering of the support shaft sections on the one hand and easy loosening on the other hand.
  • a threaded bolt for clamping the two support shaft sections is arranged coaxially in the support shaft and is, for example, by a worm wheel and a worm from an area of the Support shaft turned out, which is not subjected to bending.
  • the threaded bolts can be preloaded in the axial direction via plate springs, which can be hydraulically relieved to release the tensioning connection.
  • an interchangeable slide which can be moved laterally next to the roll stand and displaceable in the interchangeable position and onto which the supporting shaft to be exchanged can be pushed out with its roller.
  • this interchangeable slide can contain a second place for a supporting shaft to be exchanged with a roller.
  • a generic roll stand is shown, in its stand 1 and 2, which are rigidly connected to each other with crossheads 3 and 4, the rollers 5 and 6, which are fixed on support shafts 7 and 8, are mounted.
  • the support shafts 7 and 8 are supported in the scaffold stands 1 and 2 on the drive side in spherical roller bearings 9 and on the side remote from the drive in the scaffold stand 2 in cylindrical roller bearings 10.
  • the support shafts 7 and 8 are adjusted by means of rotatable eccentric bushings which support the bearings.
  • the support shafts 7 and 8 are composed of two detachable ones, with 11 support shaft sections 7a, 7b and 8a, 8b coupled to one another.
  • the sections 7b and 8b of the support shafts 7 and 8 are axially displaceable in the bearings 10 on the side remote from the drive in the scaffold stand 2.
  • grooved ball bearings 12 are arranged on the extension of the support shaft sections 7a, 8a facing the drive side, which can be brought into operative connection with the chocks 15 of this roll stand side via displaceable bushings 13 with conical support surfaces 14. The function of these deep groove ball bearings 12 will be described later.
  • the support shaft sections 7b, 8b are manually coupled and braced with a threaded bolt 16 penetrating the support shaft sections 7a, 8a, which carries a worm wheel 17 at its drive-end which cooperates with a worm 18.
  • the end of the threaded bolt 16 remote from the drive can be screwed into a corresponding mating thread of the exchangeable support shaft sections 7b, 8b.
  • Figure 2 shows a plan view of the rolling stand according to claim 1, the expansion position of the support shaft 7 with roller 6.
  • the support shaft 7 can be seen in the stand 2 by a displacement path indicated at 19 in a roller bearing 20, which in turn can be rotated in all directions
  • Bearings 21 are arranged with a spherical seat. This bearing 21 enables the support shaft section 7b or the support shaft section 8b arranged in the same way underneath to be pivoted into an extended position after the clutch 11 has been released.
  • the threaded bolt 16 which is indicated by dashed lines in FIG. 2, is unscrewed from the threaded bore in the exchangeable support shaft section 7b, which takes place via the worm 18 and the worm wheel 17, which are only indicated in this drawing figure.
  • the clutch 11 is released, i.e. the steep taper seat 11a with the driver bar 22 is pushed out of the corresponding counter surface 23 or the recess 24.
  • the supporting shaft section 7b As soon as the supporting shaft section 7b is released, it can, as shown in the drawing figure 2, be rotated within the bearing 21 such that the supporting shaft section 7b together with the roller 6 can be pulled out of the roller bearing 20 in the axial direction of the supporting shaft section 7a.
  • the angular position of the bearing 21 is chosen so that, as shown in dashed lines, the rollers 6 can be manipulated past the stand 1 without hindrance.
  • the described mode of operation applies to the same extent for the supporting shaft section 8b, the roller 5 lying in the drawing figure 2.
  • the function of the deep groove ball bearing 12 is described below with reference to the drawing figure 1.
  • the weight of the Drive shafts on the drive journal 25 cause the support shaft sections 7a, 8a remaining in the roll stand 1 to pivot about the spherical roller bearings 9. These would be rotated into a position in which the coupling of the support shaft sections 7a, 7b, 8a, 8b would be made more difficult when the removable support shaft sections 7b, 8b were installed.
  • a grooved ball bearing 12 is arranged on the part of the support shaft 7 facing the drive, next to the spherical roller bearing 9, which cooperates with the conical support surface 14 of a bushing 13, which by moving parallel to the support shaft axis with a corresponding surface on the chock 15 in Active connection can be brought or released from this.
  • the bushing 13 is preferably moved by pneumatic pistons or springs.
  • the bushing 13 can be moved in the opposite direction and the outer ring of the deep groove ball bearing 12 can thus be released. This prevents the bearing shafts 7 and 8 from matching.
  • FIG. 3 shows a proposal for a power-operated clutch 11 of the support shaft sections 7a, 7b, 8a, 8b.
  • the threaded bolt, on the pin 36 of which the worm wheel 17 is fitted, is provided with a collar 35 which serves as an abutment for a packet of disc springs 29 with which the threaded bolt 16 can be braced in the axial direction 37 with respect to the supporting shaft section 7a of the supporting shaft 7.
  • About the package disc springs 29 is thus the clamping force is applied with which the coupling 11 of the support shaft sections 7a, 7b and 8a, 8b takes place.
  • a hydraulic piston 30 is used, which is supported at the front end of the threaded bolt 16 via an axial bearing 34 and can be moved in a cylinder 32 arranged coaxially to the threaded bolt 16, the cylinder chamber 31 of which can be acted upon with hydraulic medium.
  • the worm wheel 17 After releasing the set of disk springs 29, the worm wheel 17 can be rotated via the worm 18 and the threaded bolt 16 can thus be released from the supporting shaft section 7b or 8b.
  • FIG. 4 shows an advantageous embodiment of the invention.
  • the interchangeable support shaft sections 7b are placed on an interchangeable carriage 26 which is arranged laterally next to the roll stand on a traveling carriage 27 and can be rotated about a vertical axis 28.
  • the interchangeable carriage 26 can have two receiving spaces for two support shaft sections 7b, which can be brought into the scaffolding stand 2 by pivoting through the vertical axis 28 into the installation or removal position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
EP92250042A 1991-02-26 1992-02-26 Walzgerüst Expired - Lifetime EP0501600B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4106427A DE4106427C1 (enrdf_load_stackoverflow) 1991-02-26 1991-02-26
DE4106427 1991-02-26

Publications (2)

Publication Number Publication Date
EP0501600A1 EP0501600A1 (de) 1992-09-02
EP0501600B1 true EP0501600B1 (de) 1994-06-01

Family

ID=6426168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92250042A Expired - Lifetime EP0501600B1 (de) 1991-02-26 1992-02-26 Walzgerüst

Country Status (3)

Country Link
EP (1) EP0501600B1 (enrdf_load_stackoverflow)
DE (2) DE4106427C1 (enrdf_load_stackoverflow)
ES (1) ES2054520T3 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT403034B (de) * 1995-03-15 1997-10-27 Helmut Ing Berger Walze für maschinen zur führung von bahnenförmigem flächigen material
CN117485739B (zh) * 2023-12-29 2024-03-22 中冶信诚(唐山)轧辊科技服务有限公司 一种轧辊竖向支撑装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE563381C (de) * 1931-08-20 1932-11-04 Sack Gmbh Maschf Walzgeruest
DE1140535B (de) * 1958-07-24 1962-12-06 Kocks Gmbh Friedrich Walzgeruest mit auswechselbar gelagerten Walzen
DE3531843A1 (de) * 1985-09-06 1987-03-19 Schloemann Siemag Ag Walzgeruest mit in zwei parallelen walzenstaendern gelagerten und an einer seite mit antriebselementen kuppelbaren tragwellenpaaren

Also Published As

Publication number Publication date
DE59200187D1 (de) 1994-07-07
ES2054520T3 (es) 1994-08-01
EP0501600A1 (de) 1992-09-02
DE4106427C1 (enrdf_load_stackoverflow) 1992-02-20

Similar Documents

Publication Publication Date Title
DE69206782T2 (de) Walzgerüst mit drei angetriebenen und einstellbaren Walzen
DE602004007631T2 (de) Verfahren zum ändern der konfiguration eines walzgerüstes sowie ein zur durchführung des verfahrens geeignetes walzgerüst
EP0556631B1 (de) Universal-Walzgerüst
EP0163104A2 (de) Walzgerüst
EP0455082B1 (de) Kombinierte Feinstahl- und Drahtstrasse
DE2530401A1 (de) Walzenvorrichtung
DE2842529C2 (de) Walzwerkgerüst zum Kaltwalzen von Rohren
EP0214521B1 (de) Walzgerüst mit in zwei parallelen Walzenständern gelagerten und an einer Seite mit Antriebselementen kuppelbaren Tragwellenpaaren
EP0501600B1 (de) Walzgerüst
DE69012949T2 (de) Walze mit variabler Balligkeit.
DE2845052A1 (de) Geruestwechselvorrichtung
EP0293670B1 (de) Vorrichtung zum axialen Verschieben von sich drehenden Walzwerkswalzen
DE69702283T2 (de) Vorrichtung zum Auswechseln der Walzen in einem Vierwalzengerüst zum Walzen von Blech
DE2303708A1 (de) Walzgeruest fuer stangen, bloecke oder bleche
EP0388865B1 (de) Walzenstrasse zum Profilwalzen von Bändern (Längsnaht-Rohr-Schweissen)
DE3324562C2 (de) Sechswalzengerüst
EP0484783B1 (de) Vorrichtung zum Verspannen und Ausbalancieren von Presswerkzeugträger und Kurbelgehäuse einer Stauchpresse
EP0597265A1 (de) Walzgerüst
DE2303467A1 (de) Walzgeruest fuer stangen, bloecke oder bleche
DE3907730C2 (enrdf_load_stackoverflow)
DE2747518A1 (de) Walzblock zum walzen von stangenfoermigem gut
DE1811614A1 (de) Walzenscheibenbefestigung fuer Draht-,Streckreduzierwalzwerke und dergleichen Walzwerksmaschinen
DE3504415A1 (de) Vorrichtung zum axialen verschieben von walzen in walzgeruesten
DE3544403A1 (de) Vorrichtung zum axialen verschieben von insbesondere arbeitswalzen
DE1212930B (de) Lagerung fuer auswechselbare Walzen in einem Walzgeruest fuer Schweisswalzwerke fuer Laengsnahtrohre

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

17P Request for examination filed

Effective date: 19920723

17Q First examination report despatched

Effective date: 19930719

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19940601

REF Corresponds to:

Ref document number: 59200187

Country of ref document: DE

Date of ref document: 19940707

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940610

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2054520

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19980112

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19980116

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19980216

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19980316

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990226

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 19990227

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990226

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010601