EP0037549B1 - Koaxial benachbart gelagerte Strangführungsrollen in einer Stahl-Stranggiessanlage für Brammen - Google Patents
Koaxial benachbart gelagerte Strangführungsrollen in einer Stahl-Stranggiessanlage für Brammen Download PDFInfo
- Publication number
- EP0037549B1 EP0037549B1 EP81102404A EP81102404A EP0037549B1 EP 0037549 B1 EP0037549 B1 EP 0037549B1 EP 81102404 A EP81102404 A EP 81102404A EP 81102404 A EP81102404 A EP 81102404A EP 0037549 B1 EP0037549 B1 EP 0037549B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide rollers
- billet
- bearing journals
- coupling disc
- adjacent
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 4
- 239000010959 steel Substances 0.000 title claims abstract description 4
- 238000009749 continuous casting Methods 0.000 title abstract description 5
- 230000008878 coupling Effects 0.000 claims abstract description 14
- 238000010168 coupling process Methods 0.000 claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 claims abstract description 14
- 238000005266 casting Methods 0.000 claims abstract description 8
- 239000002826 coolant Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 10
- 230000035882 stress Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use
Definitions
- the invention relates to coaxially adjacent, independently supported strand guide rollers in a steel continuous casting plant for slabs according to the preamble of claim 1 and is based on a prior art as described in DE-B2-2 544 556.
- the guide rollers of continuous casting plants are exposed to high mechanical alternating stresses with each revolution due to the ferrostatic pressure that acts on the strand, which can amount to more than 100 tons per roll in slab plants. Additional stress on the rollers is caused by the shock-like temperature increase of the roller surface with every contact with the hot strand. Depending on the strength of the roll material, these mechanical and thermal loads require a certain roll diameter.
- the respective roll diameter requires a certain minimum distance and thus the size of the unsupported areas between successive rolls.
- the interdependency between the permissible roll load, the strand width, the crust thickness, the ferrostatic pressure, the roll diameter and the distance between successive rolls limits the casting speed for large casting formats, since harmful bulges and breakthroughs must be avoided.
- Strands with widths of, for example, over 2 m wide and at least 150 mm thick either require costly strand guiding frames or can only be cast with a relatively short liquid core or only at a relatively slow speed in the case of vertical or arched strand guiding.
- a known strand guide roller consists of several roller sections, the one-sided pins of which are screwed into recesses in the adjacent roller section, a support bearing being provided between the roller sections.
- a cooling channel (DE-B1-2 420 514) runs through the roller sections.
- a strand guide is also known, two guide rollers each being mounted coaxially adjacent to one another over the strand width (DE-B2-2544556).
- the guide rollers can be installed and removed more quickly.
- the disadvantage here is that if there is a strand lying on one side only on one roll, the coaxially adjacent other roll stops and is subjected to high thermal stresses due to one-sided overheating by the strand. This promotes the formation of fire cracks in this area and, despite cooling, the roll is bent towards the strand.
- the bearings are subjected to high loads.
- the out-of-round running of the guide roller can lead to uneven support of the strand and thus to strand errors.
- the cooling system is complex with two adjacent roles.
- the invention is intended to avoid the disadvantages of the known strand guides. Your task is to create a structurally simple, maintenance-friendly and inexpensive strand guide with coaxially adjacent, independently mounted guide rollers, whereby non-uniform thermal stress on cooled guide rollers is avoided and uniform, good strand support is ensured without excessive roller and bearing loads leading to greater wear to lead. This is intended to extend the service life of such rollers with their bearings.
- the clutch disk for receiving flatly formed drivers of the guide rollers in the manner of an Oldham clutch is provided on both sides with a slot which run perpendicular to one another, the outer diameter of the clutch disk being equal to or larger than the diameter of the roller journal. This coupling also makes it possible to compensate for larger axis deviations of the neighboring guide rollers.
- the support of the casting strand can be further improved according to a further feature of the invention in that the clutch disc has the same outer diameter as the associated coaxially adjacent guide rollers. In this way, the unsupported area caused by the adjacent roller bearings is extended to the width of the Housing of a roller bearing reduced.
- square pins can be arranged on the adjacent bearing pins of the guide rollers, to which a corresponding recess is assigned on each side of the clutch disc.
- the square pin can advantageously be configured with cambered side surfaces in order to reduce the surface pressure in the event of radial displacements.
- Simplification of the coolant flow into the interior of the roll can be achieved in that the clutch disc and / or the adjacent roll journals have devices for connecting the coolant flow from one roll to the adjacent roll.
- the coolant can also flow through both rollers in one direction if the outer pin of one roller is provided with an inflow and the outer pin of the other roller is provided with a drain.
- the coolant channel in the area of the clutch disc is expanded to form an annular groove.
- the strand support is finally further improved in that the bearings of successive guide rollers in the strand running direction are offset in the axial direction.
- the clutch disc can advantageously be designed in a ring shape, the driver surfaces being designed as internal teeth.
- an arcuate strand guide arranged downstream of a mold 1 is formed by successively arranged guide rollers 2 and 3.
- the guide rollers 3 are driven.
- 2 and 3 show sections of two alternative configurations of the roller guide.
- two strand guide rollers 2a, 2b, 3a, 3b, or 2c, 2d, 3c, 3d are coaxially adjacent in two bearings 4, 5 and 6, 7 and 8, 9 and 10, 11 each independently.
- the guide rollers 2a and 2b or 2c and 2d are each provided with an inner channel 12 for the passage of a coolant, with rotary unions 13, 14 being arranged on the outer pins of the rollers.
- the driven strand guide rollers 3b and 3d are provided with a drive flange 15.
- the internal cooling of the coaxially mounted guide rollers 3a, 3b and 3c, 3d takes place according to the reversal principle in two concentric channels 16, 17, with the coolant being fed in and out through a double rotary feedthrough 18 on the outer pins of the guide rollers 3a and 3c he follows.
- the adjacent bearings 5, 6 and 9, 10 of successive guide rollers are offset from one another in the axial direction for better support of the strand.
- a clutch disc 19 is arranged between the guide rollers 2a, 2b and 3a, 3b, respectively. This area is shown enlarged in FIGS. 4 and 5.
- the connection of the guide rollers 2a and 2b as well as 3a and 3b is based on the principle of the Oldham coupling, which enables the compensation of axis deviations.
- the clutch disc 19, as shown in FIG. 5, is provided on both sides with a slot, 20 and 21, which are perpendicular to each other.
- Flat pins 22 and 23 are arranged on the pins of the guide rollers 2a, 2b, 3a, 3b, which are slidably inserted into the slots 20, 21 of the clutch disc 19.
- the diameter of the coupling disk 19 is larger than the largest height of the drivers 22 and 23. In this way, sufficiently strong transmission cross sections 24, 25 and 26, 27 are ensured.
- the coolant channels 12 of the guide rollers 2a and 2b, 3a, 3b are connected by a tube piece 28 inserted sealingly into the roller journals.
- the bearings 5, 6 are each provided on the strand side with a cooling jacket 33, 34 formed by the sheets 31, 32.
- the sheets 31, 32 are guided for shielding via the clutch disc 19.
- a clutch plate 35 is arranged between the bearings 9 and 10 of the guide rollers 2c, 2d and 3c, 3d.
- This embodiment is shown enlarged in detail in FIGS. 6 and 7.
- the clutch disc 35 is provided on both sides with holes 36 for centering on the pins of the rollers 2c, 2d, 3c, 3d.
- the pins are each provided with a square 37, each of which fits into a corresponding recess 38 in the clutch disc 35.
- the cooling channels 16 of the coaxial guide rollers 2c, 2d, 3c, 3d are connected by pipe pieces 39, 40 inserted into a through bore of the clutch disc 35, which are inserted in the cooling channels 16 in a sealing manner. Between the pipe sections 39, 40 is the Clutch disc 35 for cooling by an annular groove 41 extended.
- the outer diameter of the clutch disc 35 is equal to the outer diameter of the adjacent guide rollers 2c, 2d and 3c, 3d.
- the clutch disc 35 is provided on each side with an annular groove 42, in each of which a bearing ring 43 engages.
- the clutch disc (19 or 35) can also be designed annular, the driving surfaces z. B. are designed as internal teeth.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Metal Rolling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT81102404T ATE3253T1 (de) | 1980-04-08 | 1981-03-31 | Koaxial benachbart gelagerte strangfuehrungsrollen in einer stahl-stranggiessanlage fuer brammen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803013484 DE3013484A1 (de) | 1980-04-08 | 1980-04-08 | Koaxial benachbart gelagerte strangfuehrungsrollen in einer stahl-stranggiessanlage fuer brammen |
DE3013484 | 1980-04-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0037549A1 EP0037549A1 (de) | 1981-10-14 |
EP0037549B1 true EP0037549B1 (de) | 1983-05-11 |
Family
ID=6099514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81102404A Expired EP0037549B1 (de) | 1980-04-08 | 1981-03-31 | Koaxial benachbart gelagerte Strangführungsrollen in einer Stahl-Stranggiessanlage für Brammen |
Country Status (7)
Country | Link |
---|---|
US (1) | US4485836A (es) |
EP (1) | EP0037549B1 (es) |
JP (1) | JPS574367A (es) |
AT (1) | ATE3253T1 (es) |
CA (1) | CA1170814A (es) |
DE (2) | DE3013484A1 (es) |
ES (1) | ES268984Y (es) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2604498B1 (fr) * | 1986-09-30 | 1988-12-02 | Fives Cail Babcock | Dispositif d'etancheite pour le palier intermediaire d'un rouleau a plusieurs appuis |
US5649889A (en) * | 1994-10-06 | 1997-07-22 | Bethlehem Steel Corporation | Stress alleviating guide roll for high temperature applications |
DE19836537C1 (de) * | 1998-08-06 | 1999-09-23 | Mannesmann Ag | Strangführungsrolle für eine Metall-, insbesondere Stahlstranggießanlage |
DE10109893C1 (de) * | 2001-02-21 | 2002-08-22 | Mannesmann Roehren Werke Ag | Vorrichtung zum Verbinden der Kühlmediumführung koaxial benachbart gelagerter innengekühlter Rollen |
DE102006040011A1 (de) * | 2006-04-21 | 2007-10-25 | Sms Demag Ag | Strangführungsrolle |
JP5599786B2 (ja) * | 2008-07-08 | 2014-10-01 | アクティエボラゲット・エスコーエッフ | 連続成形機におけるロールライン |
CN102216003A (zh) * | 2008-11-04 | 2011-10-12 | Sms西马格股份公司 | 用于在起动铸造过程时控制铸坯铸造设备中的铸坯的凝固的方法和装置 |
CN103587915A (zh) * | 2012-08-17 | 2014-02-19 | 中钢集团衡阳重机有限公司 | 辊道轴承座定位装置及该定位装置的制造和使用方法 |
CN105636722B (zh) * | 2013-09-04 | 2019-08-20 | 斯凯孚公司 | 用于连续铸造的轧制线组件 |
SE1451560A1 (sv) * | 2014-12-17 | 2015-11-10 | Skf Ab | Coupling arrangement for an idler roll line |
AT517252B1 (de) * | 2015-05-27 | 2019-03-15 | Primetals Technologies Austria GmbH | Vermeidung von Wassergassen bei einer Strangführung |
US11529818B2 (en) | 2018-11-16 | 2022-12-20 | Hewlett-Packard Development Company, L.P. | Co-axial split drive rollers |
AT526034A1 (de) * | 2022-08-09 | 2023-08-15 | Primetals Technologies Austria GmbH | Strangführungsrolle zum Führen eines metallischen Strangs in einer Stranggießanlage |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3347308A (en) * | 1965-09-10 | 1967-10-17 | United Steel Companies Ltd | Machines for continuously casting metal |
DE2420514B1 (de) * | 1974-04-27 | 1975-07-10 | Kloeckner-Werke Ag, 4100 Duisburg | Mehrfach gelagerte, in Rollenabschnitte unterteilte Führungsrolle für Stranggießanlagen |
DE2428213C3 (de) * | 1974-06-11 | 1980-10-09 | Schloemann-Siemag Ag, 4000 Duesseldorf | Strangführungsgerüst in einer Stranggießanlage |
DE2439359C3 (de) * | 1974-08-16 | 1982-10-07 | SMS Schloemann-Siemag AG, 4000 Düsseldorf | Strangführungsgerüst in einer Stranggießanlage |
JPS5722124Y2 (es) * | 1975-06-24 | 1982-05-13 | ||
AT336207B (de) * | 1975-07-18 | 1977-04-25 | Voest Ag | Befestigung fur in langsrichtung mehrfach geteilte rollen in stranggiessanlagen |
DE2544556C3 (de) * | 1975-10-04 | 1978-09-21 | Demag Ag, 4100 Duisburg | Stützrollengerüst für Staht-Brammenstranggießanlagen, insbesondere für Bogen-Brammenstranggießanlagen |
US3981348A (en) * | 1975-10-20 | 1976-09-21 | Allis-Chalmers Corporation | Support and lubrication system for continuous casting machine rollers |
JPS554135Y2 (es) * | 1976-05-18 | 1980-01-30 | ||
CH596911A5 (es) * | 1976-09-24 | 1978-03-31 | Concast Ag | |
AT344349B (de) * | 1976-10-13 | 1978-07-10 | Voest Ag | Strangfuehrungsrolle fuer stranggiessanlagen |
-
1980
- 1980-04-08 DE DE19803013484 patent/DE3013484A1/de not_active Withdrawn
-
1981
- 1981-03-30 US US06/249,015 patent/US4485836A/en not_active Expired - Fee Related
- 1981-03-31 AT AT81102404T patent/ATE3253T1/de not_active IP Right Cessation
- 1981-03-31 EP EP81102404A patent/EP0037549B1/de not_active Expired
- 1981-03-31 DE DE8181102404T patent/DE3160259D1/de not_active Expired
- 1981-04-07 CA CA000374844A patent/CA1170814A/en not_active Expired
- 1981-04-07 ES ES1981268984U patent/ES268984Y/es not_active Expired
- 1981-04-08 JP JP5190281A patent/JPS574367A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS574367A (en) | 1982-01-09 |
DE3013484A1 (de) | 1981-10-15 |
EP0037549A1 (de) | 1981-10-14 |
ES268984Y (es) | 1984-04-01 |
DE3160259D1 (en) | 1983-06-16 |
ES268984U (es) | 1983-10-16 |
US4485836A (en) | 1984-12-04 |
CA1170814A (en) | 1984-07-17 |
ATE3253T1 (de) | 1983-05-15 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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