EP3706933A1 - STRANGFÜHRUNGSSEGMENT UND STRANGGIEßANLAGE - Google Patents
STRANGFÜHRUNGSSEGMENT UND STRANGGIEßANLAGEInfo
- Publication number
- EP3706933A1 EP3706933A1 EP18782390.1A EP18782390A EP3706933A1 EP 3706933 A1 EP3706933 A1 EP 3706933A1 EP 18782390 A EP18782390 A EP 18782390A EP 3706933 A1 EP3706933 A1 EP 3706933A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strand guide
- hydraulic cylinder
- guide segment
- strand
- upper frame
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
-
- 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
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
-
- 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
- B22D11/16—Controlling or regulating processes or operations
- B22D11/20—Controlling or regulating processes or operations for removing cast stock
Definitions
- the present invention relates to a strand guide segment for a continuous casting plant according to the preamble of the independent claim 1.
- the invention also relates to a continuous casting plant according to claim 10.
- each strand guide segment has an upper frame and a subframe opposite this, which carry strand-guiding roles, and their distance from each other via tie rods and spacers adjustable to the casting format is.
- the upper frame and the lower frame of each strand guide segment are clamped against each other by four hydraulic cylinder units arranged at the outer corners outside the strand path, connecting the upper frame and the lower frame with each other.
- a strand guide with strand guide segments is known, in which the respective upper frame and subframe are connected to one another via hydraulic cylinder units and can be adjusted in relation to one another.
- the hydraulic cylinder units are mounted mounted on the upper frame and the subframe.
- the upper frame and the lower frame must be separated from each other or decoupled.
- the respective bearings of the hydraulic cylinder units on the upper frame or the subframe must be opened.
- a sufficiently large game must be provided for this.
- the present invention is therefore an object of the invention to provide a strand guide segment for a continuous casting, which ensures easy maintenance and at the same time compared to the prior art, a greater accuracy of the set by the strand guide segment strand thickness.
- the present invention to provide a continuous casting, which can be easily maintained and ensures high accuracy of each set by their strand guide segments strand thickness.
- the presented strand guide segment for a continuous casting plant for metals, in particular steel materials has an upper frame and a lower frame which are connected to one another during a casting operation of the continuous casting plant via position-controlled hydraulic cylinder units.
- the Hydraulic cylinder units are arranged and configured to set a distance between the upper frame and the subframe, the set distance prescribing a strand thickness of a strand to be led through the strand guide segment.
- Each hydraulic cylinder unit has a piston rod which can be extended or retracted in a positionally regulated manner by means of an applied hydraulic pressure in order to increase or decrease the distance between the upper frame and the lower frame.
- the presented strand guide segment on two pairs of hydraulic cylinder units which are arranged on both sides and outside the strand web of the strand guide segment.
- the strand guide segment on each side of the strand web has a respective side frame which permits guided movement of the upper frame and the lower frame relative to one another in response to deflections or changes in length of the hydraulic cylinder units.
- a first end of each of the hydraulic cylinder units is supported on the upper frame.
- the tie rods are mounted on their side remote from the flange device end to the subframe.
- Each hydraulic cylinder unit more precisely its piston rod, is preferably rigidly connected to the respective pull rod by means of the respective flange device. Positional control of changes in the length of the hydraulic cylinder units mounted on the upper frame are converted into a corresponding change in the distance between the upper frame and the lower frame via the tie rods mounted on the lower frame.
- the tie rods are preferably not configured variable in length.
- the hydraulic cylinder units in particular their piston rods, are screwed to the respective tie rods via the respective flange devices.
- the fittings allow easy release of the hydraulic cylinder devices from the tie rods, equivalent to simply separating the upper frame from the subframe, during maintenance, and at the same time providing a very tight connection between the hydraulic cylinder devices and the tie rods during the casting operation.
- the tie rods are releasably connected with their respective flange device.
- the hydraulic cylinder units are detachably connected to the respective flange device. If a respective flange connection is detachably connected both to the respective pull rod and to the respective hydraulic cylinder unit, then the flange connection can be removed particularly easily during maintenance work and checked for wear. It can also be provided that the respective flange device has been thermally shrunk onto the respective hydraulic cylinder unit, in particular on its piston rod, and this flange device is screwed to the respective pull rod.
- the flange is firmly connected to one of the group of hydraulic cylinder unit and the pull rod, and the flange device with the other of the Group of hydraulic cylinder unit and the pull rod releasably connected, in particular screwed, is.
- the hydraulic cylinder units are mounted on the upper frame by means of spherical bearings on bolts.
- a particularly low-play storage of hydraulic cylinder units is realized, so that the presented strand guide segment ensures high precision of the set strand thickness due to the low-play connection of the upper frame to the subframe.
- the tie rods are mounted on the subframe by means of spherical bearings on bolts.
- a particularly low-play storage of the tie rods is realized, so that the presented strand guide segment ensures high precision of the set strand thickness due to the low-backlash connection of the subframe to the upper frame.
- both the hydraulic cylinder units and the tie rods are mounted on their associated frame by means of spherical bearings on bolts.
- the presented strand guide segment ensures a particularly high precision of the set strand thickness.
- the hydraulic cylinder units and / or the tie rods are each clamped with split bearings and a split bearing block in its associated frame.
- a backlash-free connection of the upper frame is achieved to the sub-frame, so that the presented strand guide segment allows high precision of the set strand thickness.
- the hydraulic cylinder units and / or the tie rods can be solved for maintenance and repair purposes without great technical effort of the upper frame or subframe.
- the hydraulic cylinder units each have a bearing block at its first end, for example in the form that the first end of each hydraulic cylinder unit is formed as a bearing block for one of the above-mentioned bolts.
- a position measuring sensor is mounted laterally, which measures the deflection of the piston rod of a respective hydraulic cylinder unit and generates a corresponding measurement signal for transmission to a controller for position control or strand thickness control. Due to the mounting of the position measurement sensors laterally on the upper bearing blocks of the hydraulic cylinder units, easy maintenance of the sensors in the continuous casting plant without disassembly of the strand guide segment is possible.
- the object of the present invention is also achieved by a continuous casting plant whose strand guide has at least one of the above-presented strand guide segments.
- the entire strand guide is composed of several of the presented strand guide segments.
- the presented continuous casting allows easy maintenance of the individual strand guide segments and a minimization of deviations between actual strand thicknesses in the strand guide and predetermined by the position control strand thicknesses.
- the invention includes any combinations of the above-presented strand guide segment and the above-presented continuous casting and the respective developments.
- Fig. 1 illustrates a perspective view and a simplified partial sectional view of an embodiment of the presented strand guide segment.
- Fig. 2A is a detailed sectional view of that in Fig. 1 as a simplified
- Partial sectional view shown portion of the embodiment of the presented strand guide segment.
- Fig. 2B is a side sectional view of that illustrated in Fig. 2A
- the strand guide segment 50 has an upper frame 8 and a lower frame 9, whose distance from each other along the guide by side frames 20A and 20B is variable.
- the strand guide segment 50 is designed for guiding a strand, in particular of partially solidified metal, and adjusting the strand thickness of this strand.
- rollers 21 mounted on the upper frame 8 and rollers 22 mounted on the lower frame 9 are provided, between which the strand is guided, and wherein the distance between the rollers 21 and 22 determines the strand thickness set by the strand guiding segment 50.
- the distance is adjusted by four hydraulic cylinder units 1 with tie rods 2 respectively connected thereto, which are arranged at the four outer corners of the strand guide segment 50.
- the hydraulic cylinder units 1 are detachably connected to the respective drawbar 2 by means of a respective flange device 3.
- the upper frame 8 facing the end of each hydraulic cylinder unit 1 is as a bearing block 1 first configured on the side of a position measurement sensor 10 is mounted.
- the bearing block 1 1 is designed to receive a pin 5, which in turn is clamped by split bearing shells 6 and a split bearing block 7, which are provided or mounted on the upper frame 8, in the upper frame 8.
- the bearing block 1 1 of a respective hydraulic cylinder unit 1 is mounted on the bolt 5 by means of a play arm designed hinge bearing 4.
- Each hydraulic cylinder unit 1 is aligned axially in the direction of the subframe 9, wherein each hydraulic cylinder unit 1 has a piston rod 1A at its end facing away from the upper frame 2. This piston rod 1A is connected to the flange device 3, which in turn is connected to the tie rod 2.
- the pull rod 2 is mounted at its end remote from the flange 3 end to the subframe 9. More precisely, the drawbar 2 is mounted on a bolt 15 at this end by means of a low-play spherical bearing 14. The bolt 15, and thus also the pull rod 2, is clamped by means of split bearing shells 16 and a split bearing block 17 in the subframe 9.
- FIG. 1 the front left portion of the strand guide segment 50 in a simplified perspective sectional view of the hydraulic cylinder unit 1 with its piston rod 1A, the flange 3, the tie rod 2, the joint bearings 4,14, the bolt 5, 15 and the split bearing shells 6, 16 shown.
- FIG. 2A this sectional view is shown in detail in two dimensions.
- the flange device 3 is non-positively connected to the end portion of the piston rod 1A facing away from the upper frame 8.
- the flange device 3 may have been thermally shrunk onto the end portion of the piston rod 1A.
- the flange device 3 is connected by means of a plurality of screws 12, which are aligned in the axial direction of the piston rod 1A, with the remote from the sub-frame 9 and widened end portion of the tie rod 2.
- the Screw 12 a rigid connection between the piston rod 1A and the pull rod 2 ago.
- the screws 12 can be solved so that the flange 3 and thus also the piston rod 1 A of the hydraulic cylinder unit 1 can be disconnected from the pull rod 2 and decoupled.
- the upper frame 8 can be separated from the lower frame 9 without the bearings having to be opened on the upper frame or lower frame.
- Fig. 2B is a sectional view taken along lines BB in Fig. 2A.
- the position-measuring sensor 10 is attached laterally to the bearing block 11 of the hydraulic cylinder unit 1 in the region of the upper frame 8. Therefore, the position measurement sensor 10 can be easily maintained in the continuous caster without disassembling the strand guide segment 50.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017219740.4A DE102017219740A1 (de) | 2017-11-07 | 2017-11-07 | Strangführungssegment und Stranggießanlage |
| PCT/EP2018/076752 WO2019091664A1 (de) | 2017-11-07 | 2018-10-02 | STRANGFÜHRUNGSSEGMENT UND STRANGGIEßANLAGE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3706933A1 true EP3706933A1 (de) | 2020-09-16 |
| EP3706933B1 EP3706933B1 (de) | 2021-12-08 |
Family
ID=63762508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18782390.1A Active EP3706933B1 (de) | 2017-11-07 | 2018-10-02 | Strangführungssegment und stranggiessanlage |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11565309B2 (de) |
| EP (1) | EP3706933B1 (de) |
| DE (1) | DE102017219740A1 (de) |
| RU (1) | RU2741608C1 (de) |
| WO (1) | WO2019091664A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1963146C3 (de) | 1969-12-17 | 1974-02-28 | Demag Ag, 4100 Duisburg | Segmentrahmen für die Stütz- bzw. Transportwalzen einer Metall-, insbesondere Stahlstranggießanlage |
| AT368049B (de) | 1979-11-28 | 1982-08-25 | Voest Alpine Ag | Einrichtung an einem stuetz- und fuehrungsgeruest fuer eine stranggiessanlage |
| US5115857A (en) | 1990-07-18 | 1992-05-26 | Voest-Alpine Industrieanlagenbau G.M.B.H. | Strand guide arrangement provided at a continuous casting plant |
| SU1759539A1 (ru) * | 1991-01-22 | 1992-09-07 | Центральный научно-исследовательский институт металлургии и материалов | Правильно-т нуща секци машины непрерывного лить заготовок |
| DE4306853C2 (de) | 1993-02-26 | 1996-03-21 | Mannesmann Ag | Strangführungsgerüst |
| DE19824366A1 (de) * | 1998-05-30 | 1999-12-02 | Schloemann Siemag Ag | Strangführungssegment für Brammengießanlagen |
| DE102004054296B4 (de) | 2004-11-09 | 2021-11-11 | Sms Group Gmbh | Steuer- und / oder Regeleinrichtung für ein Stützrollengerüst einer Stranggießvorrichtung für Metalle, insbesondere für Stahlwerkstoffe |
| DE102005039473A1 (de) | 2005-08-20 | 2007-02-22 | Sms Demag Ag | Vorrichtung für ein schnelles Verbinden oder ein schnelles Lösen von zwei grossen, schweren Bauteilen für den Hüttenwerksbetrieb, insbesondere für eine Stahl-Stranggiessmaschine |
| AT515260B1 (de) | 2013-12-17 | 2017-12-15 | Primetals Technologies Austria GmbH | Steuer- oder Regeleinrichtung für ein Stützrollengerüst einer Stranggießmaschine |
-
2017
- 2017-11-07 DE DE102017219740.4A patent/DE102017219740A1/de not_active Withdrawn
-
2018
- 2018-10-02 WO PCT/EP2018/076752 patent/WO2019091664A1/de not_active Ceased
- 2018-10-02 RU RU2020115495A patent/RU2741608C1/ru active
- 2018-10-02 US US16/761,838 patent/US11565309B2/en active Active
- 2018-10-02 EP EP18782390.1A patent/EP3706933B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019091664A1 (de) | 2019-05-16 |
| EP3706933B1 (de) | 2021-12-08 |
| US20210197251A1 (en) | 2021-07-01 |
| US11565309B2 (en) | 2023-01-31 |
| RU2741608C1 (ru) | 2021-01-27 |
| DE102017219740A1 (de) | 2019-05-09 |
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