EP3825018A1 - Cage de laminage de refoulement - Google Patents
Cage de laminage de refoulement Download PDFInfo
- Publication number
- EP3825018A1 EP3825018A1 EP20206572.8A EP20206572A EP3825018A1 EP 3825018 A1 EP3825018 A1 EP 3825018A1 EP 20206572 A EP20206572 A EP 20206572A EP 3825018 A1 EP3825018 A1 EP 3825018A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- stand
- edging
- rollers
- drive
- 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
- 238000005096 rolling process Methods 0.000 title description 2
- 238000007688 edging Methods 0.000 claims abstract description 49
- 239000002184 metal Substances 0.000 claims abstract description 26
- 230000008878 coupling Effects 0.000 claims abstract description 6
- 238000010168 coupling process Methods 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 230000004323 axial length Effects 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000002826 coolant Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
Definitions
- the invention relates to an edging stand, as it is used in particular in a steelworks or rolling mill for reducing metal products in their width.
- Upsetting frames are known in principle in the prior art. They typically have an infeed stand roller and an outfeed stand roller with a roller table arranged between them and possibly also with intermediate transfer tables for guiding the metal product through the edging frame.
- the infeed stand roller and the outfeed stand roller are typically driven in rotation and, in this respect, also for transporting the metal product through the edging stand.
- the British patent application discloses GB 2 516 043 A a rotary drive for the central rollers of the roller table.
- the drive essentially consists of a chain, with the help of which the torque of the driven infeed stand roller and the rotationally driven outfeed stand roller is picked up and transmitted to the center rollers.
- the British patent application teaches that the center rollers can be swiveled upwards from the center of the edging stand.
- the invention is based on the object of providing an alternative drive concept for the at least one central roller in an edging roll stand.
- This drive concept offers the advantage that it is designed to save space, particularly in terms of width. Because the drive with the gear is mounted below the center rollers, there is advantageously no need for any drives or spindles that protrude laterally beyond the width of the edging stand. Because of the intended dedicated drive for the center rollers, the drives of the infeed stand roller and the outfeed stand roller are not excessively loaded; nor do they need to be oversized.
- the claimed property of the roller assembly that it is only built as wide as the minimum distance at which the edging rolls can be brought together offers the advantage that the actual operation of the edging roll stand, namely reducing the thickness of the metal product in the width direction, is not carried out by the intended Drive for the center rollers is restricted.
- the metal product runs through the edging stand in one transport direction.
- the at least one center roller is alternately driven in clockwise and counterclockwise rotation, which is why the transport direction then also changes in each case.
- the outfeed stand roller then becomes the infeed stand roller and vice versa. Both cases or directions of transport are covered by the present invention.
- the roller unit in which, in addition to the rollers, the drive and the gear for driving the central rollers and possibly also a coupling are accommodated, is arranged symmetrically or centrally in relation to the central plane of the edging mill stand so that it is in its Total width G protrudes equally on both sides of the central plane.
- the transmission is generally in engagement with the center roller on one side of the center roller, axially offset from the ball of the center roller. This would normally result in the center roller no longer being symmetrical, i.e. H. would no longer be arranged protruding equally on both sides of the central plane in the upsetting roll stand.
- the present invention provides that the ball diameter of the at least one center roller on the side opposite the gear is reduced or offset over such an axial length that the non-offset part of the ball of the at least one center roller when the roller unit is installed in the edging stand protrudes equally far on both sides of the central plane of the edging stand.
- a hydraulic or torque motor is preferably used as the drive; Both types of motor offer the advantage that they can develop a particularly strong torque with a small space requirement.
- Figure 1 shows the upsetting roll stand 100 according to the invention seen in the transport direction.
- the transport plane can be seen perpendicular to the plane of the drawing.
- a roller assembly 160 can be seen with central rollers 130 for transporting a metal product to be compressed in one transport direction, ie into the plane of the drawing.
- two edging rollers 120 are arranged to the right and left of the roller assembly 160, which can be moved together transversely to the transport direction to a minimum distance d.
- the central rollers 130 arranged between the edging rollers 120 serve to support and convey the product (not shown in the figures) during its transport through the edging roll stand 100.
- the roller assembly 160 installed between the edging rollers 120 is at most as wide as the minimum distance d, on which the edging rollers 120 can be moved together.
- a separate drive 140 with a gear 150 is provided in the roller assembly 160 below the center rollers 130 to drive the center rollers in rotation.
- a coupling 170 is preferably also provided for releasably connecting the drive 140 to the transmission 150.
- the merit of the invention is to accommodate all of the components mentioned in the roller assembly 160, which is only very narrowly dimensioned.
- the drive is designed, for example, as a hydraulic or torque motor.
- the transmission is preferably a spur gear with spur gears 152.
- the design of the gear 150 as a spur gear offers the advantage that it can be designed to save space, especially in the width direction, as in Figure 1 shown.
- the spur gears 152 which transmit the torque of the drive 140 to the center rollers 130, are narrow in the width direction and are simply arranged one above the other in an interlocking manner in order to bridge the vertical distance between the center rollers 130 and the drive 140 arranged below.
- the (total) number of spur gears 152, 154 is selected so that the direction of rotation of the at least one driven center roller corresponds to the direction of rotation of an infeed stand roller 110 and an outfeed stand roller 190; please refer Figure 2 .
- a spur gear 154 is preferably provided as the output gear of the transmission for rotationally driving a center roller, but preferably simultaneously two adjacent center rollers with / in the same direction of rotation.
- the central roller or rollers 130 is or are basically rotatably mounted in the roller assembly 160, axially offset from the central plane x.
- the present invention provides that the at least one center roller on the side opposite or facing away from the gear 140 over such an axial length Lx in their bale diameter is reduced / offset so that the non-offset part By of the bale of the at least one central roller 130 protrudes equally on both sides of the central plane x when the roller assembly 160 is installed in the edging roll stand 100.
- the metal product passed through the upsetting roll stand 100 then lies on both sides of the Center plane on the at least one center roller 130 to the same extent, and to this extent the conveying force with which the metal product is conveyed through the edging mill stand with the aid of the center rollers is the same on both sides of the center plane.
- no unequal torque or no unequal conveying force acts on the metal product to be conveyed. This has the advantage that the metal product does not shear sideways as it is transported through the edging stand.
- FIG 2 shows the upsetting roll stand 100 according to the invention in a cross section or in a side view.
- the entry-side stand roller 110 and an exit-side stand roller 190 which are typically both rotationally driven, can be seen. They are used to convey the metal product in the transport direction, ie in Figure 2 in the direction of the arrow, through the edging roll stand 100.
- Said roller assembly 160 is arranged between these two stand rollers 110, 190, it being possible for transfer tables 168 to be arranged between the roller assembly and the stand rollers.
- the silhouette of the roller assembly 160 can be seen as a dashed line.
- the roller assembly 160 is preferably enclosed with a housing 170 to protect all components within the Roller unit against dirt and cooling water.
- the housing can have a cooling device from which in Figure 1 an inlet 186 and an outlet 184 for the cooling water can be seen.
- a protective shield 165 recognizable for the discharge of external cooling water with which the metal product to be upset is cooled, in particular by the drive 140.
- the protection shield 165 serves to keep radiant heat from the drive 140 away from the metal product to be upset.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019217353.5A DE102019217353A1 (de) | 2019-11-11 | 2019-11-11 | Stauchwalzgerüst |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3825018A1 true EP3825018A1 (fr) | 2021-05-26 |
EP3825018B1 EP3825018B1 (fr) | 2022-03-30 |
Family
ID=73343806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20206572.8A Active EP3825018B1 (fr) | 2019-11-11 | 2020-11-10 | Cage de laminage de refoulement |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3825018B1 (fr) |
DE (1) | DE102019217353A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3984662B1 (fr) | 2020-10-19 | 2023-03-08 | SMS Group GmbH | Table de transfert à rouleaux et cadre de cylindre d'écrasement |
DE102021211742A1 (de) | 2020-10-19 | 2022-04-21 | Sms Group Gmbh | Überleitrollentisch und Stauchwalzgerüst |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2787176A (en) * | 1953-03-02 | 1957-04-02 | Kaiser Aluminium Chem Corp | Edge roll device |
GB2516043A (en) | 2013-07-09 | 2015-01-14 | Siemens Vai Metals Tech Gmbh | A rolling mill edger |
-
2019
- 2019-11-11 DE DE102019217353.5A patent/DE102019217353A1/de not_active Withdrawn
-
2020
- 2020-11-10 EP EP20206572.8A patent/EP3825018B1/fr active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2787176A (en) * | 1953-03-02 | 1957-04-02 | Kaiser Aluminium Chem Corp | Edge roll device |
GB2516043A (en) | 2013-07-09 | 2015-01-14 | Siemens Vai Metals Tech Gmbh | A rolling mill edger |
Also Published As
Publication number | Publication date |
---|---|
EP3825018B1 (fr) | 2022-03-30 |
DE102019217353A1 (de) | 2021-05-12 |
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