EP1251984A1 - Rollenbestücktes führungssegment an einer stranggiessanlage - Google Patents
Rollenbestücktes führungssegment an einer stranggiessanlageInfo
- Publication number
- EP1251984A1 EP1251984A1 EP01911523A EP01911523A EP1251984A1 EP 1251984 A1 EP1251984 A1 EP 1251984A1 EP 01911523 A EP01911523 A EP 01911523A EP 01911523 A EP01911523 A EP 01911523A EP 1251984 A1 EP1251984 A1 EP 1251984A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearings
- roller
- roller body
- floating
- bodies
- 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.)
- Granted
Links
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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/0405—Rotating moulds
Definitions
- the invention relates to a guide segment on a continuous casting installation, in which at least some rollers each comprise at least two aligned roller bodies mounted with end roller journals in inner and outer bearings, the inner bearings being designed as floating bearings in the form of full-complement high-performance bearings and the outer bearings as fixed bearings.
- Guide segments equipped with rollers on continuous casting plants serve to transfer the band-shaped strand emerging from the mold with a still liquid core via an arc from the vertical to the horizontal.
- the resulting mechanical load on the roller bearings is high, especially on the outer curve of the guide. It is therefore customary not to equip the guide segments with one-part rolls that extend over the entire strand width, but with multi-part, in particular with two aligned roll cores.
- rollers Since on the one hand the rollers have to be axially fixed and on the other hand fixed bearings, which fulfill this task, can withstand less mechanical stress than full-complement high-performance bearings available in the form of floating bearings, such as CARB bearings from the SKF company
- Assembly of guide segments with rollers has started to use two aligned roller bodies per roller, the outer bearings of which are designed as fixed bearings and the inner bearings of which are designed as floating bearings in the form of full complement CARB bearings.
- the bottom bracket As a special floating bearing, the higher load on the roll from the strand in the area of the middle of the strand is taken into account.
- the object of the invention is to create a guide segment with a green cast on a continuous caster, which can be subjected to higher mechanical loads in comparison to a guide segment with two roller bodies per roller.
- the higher load-bearing capacity of the at least three-part roller is achieved in that only the highly resilient full-complement floating bearings are used in the middle support region of the strand, where the roller must exert the greatest supporting force.
- the so-called CARB bearings from SKF are available.
- other floating bearings comparable in terms of their load-bearing capacity can be used.
- the permitted axial mobility for these floating bearings is limited only by the external fixed bearings of the outer roller bodies. In the case of the outer roller bodies, this takes place directly via their outer fixed bearings and in the case of the middle roller body via the stops on the axially fixed outer roller bodies.
- the fixed bearings are preferably spherical roller bearings.
- the bearing rings of the floating bearings of the outer roller bodies are axially offset from one another in their cold state in such a way that they are in their warm storage position in their optimal storage position.
- FIG. 1 shows a continuous casting installation with a mold and an arcuate strand guide formed by guide segments in a schematic side view
- Figure 3 shows the left outer roller body of the roller with bearings according to Figure 2 in axial section in an enlarged view.
- a strip-shaped strand 2 cast in a mold 1 with a curved guide 3 formed from guide segments 3a, 3b is deflected from the vertical m to the horizontal.
- the individual guide segments 3a, 3b support the strand 2 on its broad sides with rollers. The roles apply the greatest support force in the middle of the strand.
- rollers for example one of the rollers arranged on the outer curve of the sheet guide 3, is shown in detail in FIG.
- the roller according to FIG. 2 consists of three aligned roller cores 4, 5, 6, each of which is supported by roller ends 4a, 4b, 5a, 5b, 6a, 6b in roller bearings 7a, 8a, 8b, 9a, 9b, 10a are supported by bearing blocks 7,8,9,10 of the guide segment 3b.
- the outer bearings 7a, 10a of the two outer roller bodies 4, 6 are designed as fixed bearings, while all other bearings 8a, 8b, 9a, 9b are designed as floating bearings.
- the inner bearing ring on the roller journal 4b, 5a, 5b, 6a can move axially and be skewed relative to the outer bearing ring fixed in the bearing block 8,9.
- the floating bearings 8b, 9a are not overloaded by excessive axial displacement.
- the mutually facing end faces of the journals 4a, 5a, 5b, 6a carry screwed-on thrust washers 11, 12a, 12b, 13.
- the drawing shows the initial state without cold roller bodies 4, 5, 6.
- the thrust washers 11, 12a, 12b, 13 facing each other have a certain axial distance from one another. This is; dimensioned so that the floating roller body 5 are displaced in one or the other axial direction by only one path, which is at most equal to the maximum permissible axial for its floating bearings.
- FIG. 3 which shows the installation situation in the cold state of the roller bodies 4, 5, 6, shows that the bearing rings of the inner floating bearing 8a of the outer roller body 4 are axially offset from one another by a certain amount.
- a corresponding axial offset is provided in the bearing rings of the floating bearing 9b of the other roller body 6 not shown in FIG. 3. This axial offset is dimensioned such that the bearing rings of the floating bearings 8a, 9b are in their optimal bearing position with respect to one another when the roller cores 4, 6 are at operating temperature.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Rolling Contact Bearings (AREA)
- Support Of The Bearing (AREA)
- Continuous Casting (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10003846 | 2000-01-31 | ||
DE10003846A DE10003846C2 (de) | 2000-01-31 | 2000-01-31 | Rollenbestücktes Führungssegment an einer Stranggießanlage |
PCT/EP2001/000760 WO2001056724A1 (de) | 2000-01-31 | 2001-01-24 | Rollenbestücktes führungssegment an einer stranggiessanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1251984A1 true EP1251984A1 (de) | 2002-10-30 |
EP1251984B1 EP1251984B1 (de) | 2003-07-16 |
Family
ID=7629131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01911523A Expired - Lifetime EP1251984B1 (de) | 2000-01-31 | 2001-01-24 | Rollenbestücktes führungssegment an einer stranggiessanlage |
Country Status (7)
Country | Link |
---|---|
US (1) | US6736189B2 (de) |
EP (1) | EP1251984B1 (de) |
AT (1) | ATE245071T1 (de) |
AU (1) | AU2001240539A1 (de) |
DE (2) | DE10003846C2 (de) |
ES (1) | ES2202280T3 (de) |
WO (1) | WO2001056724A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10211802C1 (de) * | 2002-03-16 | 2003-10-02 | Thyssenkrupp Stahl Ag | Drehdurchführung für die Kühlwasserzu- und -ableitung einer endseitig drehgelagerten Stütz- und/oder Transportrolle |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT337383B (de) * | 1974-10-22 | 1977-06-27 | Voest Ag | Stranggiessanlage |
CH596911A5 (de) * | 1976-09-24 | 1978-03-31 | Concast Ag | |
AT344349B (de) * | 1976-10-13 | 1978-07-10 | Voest Ag | Strangfuehrungsrolle fuer stranggiessanlagen |
US4351383A (en) * | 1980-04-10 | 1982-09-28 | Gladwin Corporation | Bearings for continuous casting roller aprons |
US5649889A (en) * | 1994-10-06 | 1997-07-22 | Bethlehem Steel Corporation | Stress alleviating guide roll for high temperature applications |
AT407721B (de) * | 1999-06-02 | 2001-05-25 | Voest Alpine Ind Anlagen | Strangführungsrolle |
DE20021514U1 (de) * | 2000-12-20 | 2001-04-05 | Skf Gmbh | Lageranordnung für eine Walze einer Stranggießanlage |
-
2000
- 2000-01-31 DE DE10003846A patent/DE10003846C2/de not_active Expired - Fee Related
-
2001
- 2001-01-24 WO PCT/EP2001/000760 patent/WO2001056724A1/de active IP Right Grant
- 2001-01-24 DE DE50100385T patent/DE50100385D1/de not_active Expired - Lifetime
- 2001-01-24 EP EP01911523A patent/EP1251984B1/de not_active Expired - Lifetime
- 2001-01-24 AT AT01911523T patent/ATE245071T1/de not_active IP Right Cessation
- 2001-01-24 AU AU2001240539A patent/AU2001240539A1/en not_active Abandoned
- 2001-01-24 US US10/182,283 patent/US6736189B2/en not_active Expired - Fee Related
- 2001-01-24 ES ES01911523T patent/ES2202280T3/es not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0156724A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2001240539A1 (en) | 2001-08-14 |
DE10003846C2 (de) | 2002-02-21 |
ATE245071T1 (de) | 2003-08-15 |
US6736189B2 (en) | 2004-05-18 |
ES2202280T3 (es) | 2004-04-01 |
US20030075302A1 (en) | 2003-04-24 |
EP1251984B1 (de) | 2003-07-16 |
DE10003846A1 (de) | 2001-08-23 |
WO2001056724A1 (de) | 2001-08-09 |
DE50100385D1 (de) | 2003-08-21 |
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