EP3362198A1 - Roller stand and roller mill train for rolling metal rolling stock - Google Patents
Roller stand and roller mill train for rolling metal rolling stockInfo
- Publication number
- EP3362198A1 EP3362198A1 EP16779121.9A EP16779121A EP3362198A1 EP 3362198 A1 EP3362198 A1 EP 3362198A1 EP 16779121 A EP16779121 A EP 16779121A EP 3362198 A1 EP3362198 A1 EP 3362198A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rolling
- stand
- oil
- oil film
- roll
- 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 claims abstract description 106
- 239000002184 metal Substances 0.000 title abstract 2
- 210000003739 neck Anatomy 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 89
- 239000000654 additive Substances 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 4
- 238000005097 cold rolling Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/07—Adaptation of roll neck bearings
- B21B31/074—Oil film bearings, e.g. "Morgoil" bearings
-
- 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
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B2013/025—Quarto, four-high stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
- B21B2203/24—Hydrostatic bearings or guides
Definitions
- the invention relates to a rolling stand and a rolling train with a plurality of rolling stands for rolling metallic rolling.
- the invention relates to the oil supply of the rolling stands.
- the invention relates to both rolling mills for hot rolling as well
- Roll stands for the cold rolling of metallic rolling stock.
- oil film bearings e.g. Morgoil camp used. These transfer the necessary for rolling contact with an oil film on the rotating support roller.
- the oil film storage of which there are in a standard rolling mill, for example, 28 pieces, a central lubricating oil supply in the basement. There, the oil flowing back from the bearings of the rolling stands is processed, ie cooled, demulsified, filtered and deaerated and stored.
- the filling capacity of the tanks in the standard rolling mill with 7 stands is approx. 60 m 3 oil; The filling quantity usually depends on the required quantity for approx. 30 minutes
- Oil foaming can be chemically dissolved. In practice, however, this has not been done because the purchase price of the necessary additives or synthetic oils, especially for the traditionally required large
- the invention has the object of developing a known rolling mill and a known rolling mill for rolling metallic rolling to the effect that they are economically attractive for the use of said additives or of synthetic oil.
- This task is for the rolling mill by the subject of the
- Patent claim 1 solved. This is characterized in that the oil film bearings are quasi oil-loss operated operable, and that the rolling stand is assigned at least two tanks for its four oil film bearings for its two support rollers individually.
- Oil losses per oil film storage less than 0.1 l / h, preferably even less than 0.01 l / h.
- the amount of oil to be stored in the oil film bearings with the improved sealing technology is only 50% or less compared to the traditionally available oil quantity per rolling stand or per rolling train.
- At least one of the tanks in a bearing housing too
- the oil film warehouse be integrated.
- the oil can be stored in the bearing housing.
- the above object is further for a rolling mill through the
- At least one of the rolling mills is designed according to one of the preceding claims.
- at least two of the rolling mills of the rolling train are also formed quasi ⁇ lpanok and operable without water contamination and each only a single own tank for their four
- Oil film bearing and preferably also have for their thrust bearings.
- the tanks of the front rolling mills of the rolling train are filled with a first type of oil, which is specially designed for loads up to the load threshold.
- the claimed decentralized oil supply of the individual stands offers the advantage that the size or the volumes of the tanks can be individually matched to the respective oil requirements of the individual stands. This can be particularly important in a rolling mill, where less oil must be stored for the relatively slow-moving front rolling stands than for the faster moving rear rolling stands. Every tank or each
- Oil circuit can be a separate filter device for the oil and / or a
- Fig. 1 shows a first embodiment for the assignment of the tanks to the
- Fig. 2 shows a second embodiment for the assignment of the tanks to the
- Fig. 3 shows a third embodiment for the assignment of the tanks to the
- Fig. 5 shows a fourth embodiment for the assignment of a tank to the oil film bearings of a rolling mill.
- the invention will be described in detail below with reference to the said figures in the form of embodiments.
- the same technical elements are designated by the same reference numerals.
- the reference numeral 140 is representative of all variants of the reference numeral, d. H. used for 140 ', 140 ", 140-1, 140-2, 140-1, 140-11, 140-111, and 140-IV
- All of the figures show, by way of example, four-high rolling stands (100) each with a roll stand (100 ') on the drive side and a roll stand (100 ") on the operating side
- Each roll stand has two support rolls, each with its four roll journals (1 10)
- Each oil film bearing 120 has an oil feed 122 and at least one oil drain 124. The returns are returned to the tank and the feeds are fed from the respective tank.
- Fig. 1 shows a first embodiment of the tank assembly on or on the rolling stand (100).
- a first tank (140 ') for the two oil film bearings (120) of the upper and the lower Support roller provided on the roller stand (100 ') on the drive side.
- the first tank (140 ') is preferably on top of the roll stand (100') on the drive side
- Roller stand (100 ) is arranged on the operating side.
- a first common tank (140-1) is provided for the two oil film bearings (120) of the upper backup roll on the drive side and the operating side of the mill stand.
- a second common tank (140-2) for the two oil film bearings (120) of the lower support roller on the drive and the operating side is provided.
- the first common tank (140-1) is preferably arranged on top of the roll stand (100 ') on the drive side or on top of the roll stand (100 ") on the operating side of the roll stand. 2).
- Fig. 3 illustrates a third embodiment of the present invention, according to which each of the four oil film bearings (120) for the two support rollers each have their own tank (140-1, 140-11, 140-111 and 140-IV) is assigned individually.
- the back-up rolls are typically stored not only in said oil film bearings designed to receive radial forces.
- the roll necks of the backup rolls are typically also mounted in thrust bearings for receiving axial forces on the backup rolls.
- the thrust bearings are typically located in the axial direction adjacent to the oil film bearings (120) shown herein.
- the thrust bearings are typically connected to the same oil circuit as shown in the figures for the oil film bearings. This means that a thrust bearing in each case in the Oil circuit of its associated oil film bearing is integrated and is supplied by this with oil.
- Fig. 4 shows a typical rolling mill for hot or cold rolling of
- metallic rolling stock It consists essentially of a plurality of in a line one behind the other erected rolling stands (100). According to the invention, at least one of the rolling stands (100), but preferably all rolling stands are formed according to one of the previously described
- Exemplary embodiments of a single roll stand can also be designed according to a fourth exemplary embodiment.
- Fig. 5 illustrates this fourth embodiment of the tank assembly in a rolling stand. Accordingly, the mill stand (100) is assigned only a single tank for supplying the four oil film bearings (120) of the support rollers.
- This tank (140) is preferably arranged on top of the mill stand (100 ') on the drive side or on top of the mill stand (100 ") on the operator side
- the rear mills are designed only for payloads with T ⁇ Tsw at the same time, however, the rear stands are for larger ones
- the tank volume to be kept per scaffold in the present invention is only 1-8 m 3 , ie with 4 oil film bearings per mill stand, an amount of only 0.25-2 m 3 per oil film storage.
- this corresponds to less than 50% of the tank volume traditionally held centrally for a rolling mill.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015219864 | 2015-10-13 | ||
DE102015223770.2A DE102015223770A1 (en) | 2015-10-13 | 2015-11-30 | Roll stand and rolling train for rolling metallic rolling stock |
PCT/EP2016/074356 WO2017064070A1 (en) | 2015-10-13 | 2016-10-11 | Roller stand and roller mill train for rolling metal rolling stock |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3362198A1 true EP3362198A1 (en) | 2018-08-22 |
EP3362198B1 EP3362198B1 (en) | 2019-06-19 |
Family
ID=58405962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16779121.9A Active EP3362198B1 (en) | 2015-10-13 | 2016-10-11 | Roller stand and roller mill train for rolling metal rolling stock |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3362198B1 (en) |
JP (1) | JP6651009B2 (en) |
DE (1) | DE102015223770A1 (en) |
WO (1) | WO2017064070A1 (en) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3101980A (en) * | 1960-10-06 | 1963-08-27 | Glacier Co Ltd | Hydrodynamic bearing assembly |
JPS5828643Y2 (en) * | 1977-04-18 | 1983-06-22 | 新日本製鐵株式会社 | hot rolling mill |
JPS617008A (en) * | 1984-06-22 | 1986-01-13 | Kawasaki Steel Corp | Method and device for controlling supply temperature of lubricating oil for roll bearing of rolling mill |
JPS61165217A (en) * | 1985-01-14 | 1986-07-25 | Kawasaki Steel Corp | Automatic sheet thickness controlling method for rolling mill |
JPS62282715A (en) * | 1986-05-30 | 1987-12-08 | Kawasaki Steel Corp | Abnormality diagnosing method for oil film bearing system of rolling roll |
JP2000024709A (en) * | 1998-07-09 | 2000-01-25 | Nippon Steel Corp | Roll neck seal for rolling |
DE10305511B9 (en) * | 2003-02-11 | 2005-01-27 | Eduard Küsters Maschinenfabrik GmbH & Co. KG | roller |
US7461532B2 (en) * | 2005-02-08 | 2008-12-09 | Morgan Construction Company | Monitoring and alarm system for rolling mill oil film bearings |
JP2008194721A (en) * | 2007-02-13 | 2008-08-28 | Jfe Steel Kk | Method of cold-rolling metallic sheet |
JP5048028B2 (en) * | 2009-09-08 | 2012-10-17 | 新日本製鐵株式会社 | Cooling method for lubricating oil supplied to rolling roll bearing |
CN201618725U (en) | 2010-01-11 | 2010-11-03 | 山东西王特钢有限公司 | Rolling mill bearing-lubricating apparatus |
DE102012224511A1 (en) * | 2012-12-28 | 2014-07-03 | Sms Siemag Ag | Chock for storing a roll in a roll stand |
CN203488955U (en) * | 2013-08-27 | 2014-03-19 | 天津市宇润德金属制品有限公司 | Lubricating oil filling circulating system for rolling mill supporting roller bearing blocks |
-
2015
- 2015-11-30 DE DE102015223770.2A patent/DE102015223770A1/en not_active Withdrawn
-
2016
- 2016-10-11 JP JP2018519018A patent/JP6651009B2/en active Active
- 2016-10-11 EP EP16779121.9A patent/EP3362198B1/en active Active
- 2016-10-11 WO PCT/EP2016/074356 patent/WO2017064070A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP3362198B1 (en) | 2019-06-19 |
WO2017064070A1 (en) | 2017-04-20 |
JP2018530433A (en) | 2018-10-18 |
DE102015223770A1 (en) | 2017-04-13 |
JP6651009B2 (en) | 2020-02-19 |
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