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US3820769A - Ladle swing tower for a continuous casting installation - Google Patents

Ladle swing tower for a continuous casting installation Download PDF

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Publication number
US3820769A
US3820769A US00292077A US29207772A US3820769A US 3820769 A US3820769 A US 3820769A US 00292077 A US00292077 A US 00292077A US 29207772 A US29207772 A US 29207772A US 3820769 A US3820769 A US 3820769A
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US
United States
Prior art keywords
casting
tower
inner rotatable
ladle
rotatable structure
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
US00292077A
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English (en)
Inventor
S Kishi
M Kato
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.)
SMS Concast AG
Original Assignee
Concast 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 Concast AG filed Critical Concast AG
Application granted granted Critical
Publication of US3820769A publication Critical patent/US3820769A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/12—Travelling ladles or similar containers; Cars for ladles
    • B22D41/13—Ladle turrets

Definitions

  • ABSTRACT A ladle swing tower for a continuous casting installation or plant equipped with pivotal carrier arms for the transport of casting or pouring vessels to and from a casting position.
  • an inner rotatable structure of the ladle swing tower possessing at its lower end a bearing block located at the plane of the floor of the plant.
  • an outer stationary structure possessing a guide track at the level of the casting platform for rollers arranged at the inner rotatable structure.
  • the present invention relates to a new and improved construction of ladle swing or slewing tower for a continuous casting installation with pivotable carrier arms for transporting pouring or casting vessels, e.g., ladles to and from a casting position.
  • Ladle swing towers for continuous casting plants are known to the art which are arranged at the level of the casting platform. Owing to the considerable weight of the casting ladles needed in larger capacity installations as well as the tilting moment prevailing during operation the bearings must possess considerable dimension and also large diameter. This requires increased spatial requirements. They also must be designed such that they can withstand large forces acting both in horizontal and vertical direction. Such bearings are however relatively complicated and expensive. The bearings bear upon rather large concretepedestals which extend from the plane of the casting platform to .the floor of the casting plant and additionally must be equipped with traction anchors or tiebolts for the prevailing trac' tion forces. These concrete pedestals require a great deal of space.
  • vention aims at the provision of an improved construction of ladle swing tower which allows for a better-distribution of the forcesand moments which are to be taken up and which can be equipped with simpler bearings, and the dismantling of which can be carried out in a most simple manner.
  • a further object of this invention relates to an improved ladle swing tower wherein the ladle swing tower rollers arranged at the inner structure.
  • Such type arrangement affords a large lever arm for the counter or reactive moment, enabling the bearing to be of simpler construction.
  • the ladles can be mounted in beams or carriers arranged at the carrier arms and these beams are connected with weight measuring devices.
  • the beams are designed to be elevationally displaceable by means of conventional lifting devices or jacks in order to be able to raise or lower the casting or pouring vessels.
  • FIGS is 'a sectional view, taken substantially along the line III-III of FIG. 2;
  • FIG. 4 is a sectional view through the foot step bearing block of the swing tower.
  • FIG. 5 illustrates the arrangement of the lifting device for the ladles.
  • reference numeral 1 designates as a portion of the ladle swing tower a stationary steel tower structure which extends upwardly from the floor plane 15 of the casting plant or foundry.
  • This tower structure 1 is formed of tubes or pipes and steel plates, as generally indicated at reference character la, and secured by bolts or the like to the foundation.
  • a circular-shaped guide track 2 At the upper end of the tower structure 1 there is located a circular-shaped guide track 2 at the region of the height or level of the casting platform 14, which track 2 consists of a rail 2a for instance.
  • this track 2 serves for guiding and supporting a plurality of rollers 6.
  • These rolers 6 are arranged at an inner rotatable structure or center post 3.
  • a rotating mechanism or slewing device 8 consisting of conventional components, such as a motor, gears, transmission means and so forth.
  • a pinion 8a of the transmission engages with a tooth rim or gear ring 7. It would be possible to provide an auxiliary rotating mechanism or slewing device comprising motor and transmission in order to be able to carry out the necessary operations in the case of possible breakdown of the first unit.
  • the ring-shaped guide track 2 pos sess sufficient flexural rigidity in order to be able to withstand the forces transmitted by the rollers 6 during loading by merely one ladle.
  • some of the rollers 6 are assembled together as pairs into roller units 6a. They are able to withstand extremely well the forces prevailing during eccentric loading, brought about when loading the swing tower by a filled ladle, and to reduce the risk of deformation of the guide track 2.
  • the inner rotatable component or center post 3 of the ladle swing tower is mounted at a foot step bearing block 4 at the level of the casting plant or foundry floor 15, as best seen by referring to FIG. 4.
  • this bearing block 4 embodies a roller thrust bearing 4 and a radial roller bearing 4".
  • the roller thrust bearing 4 is designed to withstand the large thrust forces and the roller bearing 4" to withstand radial forces. Owing to the arrangement of the foot step bearing block 4 at the floor 15 of the foundry and the guide track 2 at the level of the casting platform 14 there is provided a large distance as the effective lever arm of the countermoment.
  • the bearing glock 4 To facilitate disassembly or dismantling of the bearing glock 4 there is provided at the structure the surfaces 5 at which engage conventional lifting means in order to somewhat raise and support the center post 3.
  • the bearing block 4 is easily accessible and can be laterally dismantled in a most simple manner. Owing to this mode of mounting and supporting the arrangement there can be dispensed with the concrete pedestal extending from the plane of the plant floor to the height of the casting platform which was conventional with prior art casting installations. In place thereof there is employed a lighter and less expensive steel structure which requires less space.
  • the support or carrier arms 9 for receiving the ladles 10.
  • These ladles 10 are seated in carriers or beams 11 which are elevationally displaceable. This is required because the full ladle must be lifted in the event a tundish 16 equipped with an immersion or pouring tube 20 is conveyed in raised position in order to introduce the pouring or immersion tube 20 into the casting mold 17.
  • the elevational adjustability of the beams 11 and the ladles 10 carried thereby can occur at a speed of about 0.6m/min. within an elevational range of about 300 mm., and specifically by the action of known hydraulic or mechanical lifting devices or jacks 12. In the illustrated embodiment, and as best seen by referring to FIG.
  • motors 21, transmissions 22, and screw spindles 23 there are provided motors 21, transmissions 22, and screw spindles 23. Moreover, for each of both lateral ladle beams 11 there is provided a motor. In order to be able to raise and lower the beams 11 arranged at both sides with the same speed both of the motors should be coupled. Weight measuring devices or load cells 13 are provided directly beneath the beams 11, and specifically four weight measuring cells are provided beneath each beam. The weight measuring devices or load cells 13 are electrically coupled with the drive of the lift means and the rotating mechanism or slewing device 8.
  • a signal triggered by the weight measuring devices brings about raising of the ladle 10 to a predetermined level and thus initiates the pivotal or slewing movement of the center post or structure 3 by means of the rotating mechanism or slewing device.
  • the elevational ad'- justment of the ladle l0 and the pivotal movement also can be carried out simultaneously.
  • the rotating mechanism or slewing device 8 By actuating the rotating mechanism or slewing device 8 the ladles seated at the carrier arms 9 can be respectively alternately brought into casting position over the tundish 16 which again is located above the mold l7 equipped with the subsequent secondary cooling zone 18 as is well known in this particular art, or transported or moved out of such casting position. If necessary, the two carrier or support arms could also be slewed independently of one another.
  • a ladle swing tower for a continuous casting plant equipped with a casting platform comprising pivotal carrier arms for transporting pouring vessels to and from a casting position, an inner rotatable structure having a lower end and provided for the ladle swing tower, rollers provided for said inner rotatable structure, said inner rotatable structure of the ladle swing tower being provided at its lower end with a bearing block located at approximately the plane of the floor of the casting plant, an outer stationary tower structure cooperating with said inner rotatable structure, a guide track provided for said outer stationary tower structure at the level of the casting platform for the rollers of the inner rotatable structure.
  • a ladle swing tower for a continuous casting plant equipped with a casting platform comprising pivotal carrier arms for transporting pouring vessels to and from a casting position, an inner rotatable structure having a lower end and an upper end provided for the ladle swing tower, rollers provided for said inner rotatable structure, said inner rotatable structure of the ladle swing tower being provided at its lower end with a bearing block located at approximately the plane of the floor of the casting plant and extending with its upper end at least up to-the level of the casting platform, an outer stationary tower structure cooperating with said inner rotatable structure, said outer stationary tower structure extending approximately from the level of the plane of the floor of the casting plant to the region of the casting platform, a guide track provided for said outer stationary tower structure at the level of the casting platform for the rollers of the inner rotatable structure, said guide track and bearing block being spaced from one another at a distance substantially corresponding to at least the height of said outer stationary tower structure to thereby provide a large effective lever arm for countermoments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
US00292077A 1971-09-28 1972-09-25 Ladle swing tower for a continuous casting installation Expired - Lifetime US3820769A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1971087838U JPS4944004Y2 (de) 1971-09-28 1971-09-28

Publications (1)

Publication Number Publication Date
US3820769A true US3820769A (en) 1974-06-28

Family

ID=13926045

Family Applications (1)

Application Number Title Priority Date Filing Date
US00292077A Expired - Lifetime US3820769A (en) 1971-09-28 1972-09-25 Ladle swing tower for a continuous casting installation

Country Status (5)

Country Link
US (1) US3820769A (de)
JP (1) JPS4944004Y2 (de)
DE (1) DE2247184B2 (de)
FR (1) FR2154608B1 (de)
GB (1) GB1371279A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000840A (en) * 1974-08-30 1977-01-04 Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft Tundish car and rotary support for positioning tundish
US4061179A (en) * 1975-09-27 1977-12-06 Bbc Brown, Boveri & Company Limited Apparatus for pouring casting material
US4270738A (en) * 1976-08-14 1981-06-02 Demag Aktiengesellschaft Casting ladle mounting for steel strand casting plants

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5053417U (de) * 1973-09-19 1975-05-22
DE2408951C3 (de) * 1974-02-25 1982-04-15 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg Vorrichtung an einem Pfannendrehturm zur Aufnahme einer Gießpfanne
DE2557769C3 (de) * 1975-12-20 1985-01-03 Mannesmann AG, 4000 Düsseldorf Zwischenbehälterwagen für Metall-, insbesondere Stahlstranggießanlagen
AT340625B (de) * 1976-03-26 1977-12-27 Voest Ag Pfannendrehturm an einer stranggiessanlage
DE2916042C3 (de) * 1979-04-20 1988-09-29 Mannesmann AG, 4000 Düsseldorf Drehturm für zwei unabhängig voneinander heb- und senkbare Gießpfannen
LU83753A1 (fr) * 1981-11-13 1983-09-01 Wurth Paul Sa Support tournant pour poches de coulee continue
CN102784909B (zh) * 2011-05-20 2014-09-17 上海梅山钢铁股份有限公司 连铸机钢包回转台的旋转接头联接装置
CN103949622B (zh) * 2014-04-11 2016-05-25 江苏大学 一种新型重力铸造给汤机双浇勺机械臂
CN112692266A (zh) * 2019-10-23 2021-04-23 江阴远景铸造机械有限公司 一种水平线浇注机

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000840A (en) * 1974-08-30 1977-01-04 Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft Tundish car and rotary support for positioning tundish
US4061179A (en) * 1975-09-27 1977-12-06 Bbc Brown, Boveri & Company Limited Apparatus for pouring casting material
US4270738A (en) * 1976-08-14 1981-06-02 Demag Aktiengesellschaft Casting ladle mounting for steel strand casting plants

Also Published As

Publication number Publication date
FR2154608A1 (de) 1973-05-11
GB1371279A (en) 1974-10-23
JPS4944004Y2 (de) 1974-12-03
DE2247184A1 (de) 1973-05-03
DE2247184B2 (de) 1973-08-09
FR2154608B1 (de) 1974-08-19
JPS4841810U (de) 1973-05-29

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