CN102189101A - Multi-high rolling mill - Google Patents
Multi-high rolling mill Download PDFInfo
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- CN102189101A CN102189101A CN2011100643568A CN201110064356A CN102189101A CN 102189101 A CN102189101 A CN 102189101A CN 2011100643568 A CN2011100643568 A CN 2011100643568A CN 201110064356 A CN201110064356 A CN 201110064356A CN 102189101 A CN102189101 A CN 102189101A
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- calender rolls
- intermediate calender
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- multistage
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- 238000005096 rolling process Methods 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 abstract description 9
- 230000000052 comparative effect Effects 0.000 description 21
- 238000003801 milling Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005755 formation reaction Methods 0.000 description 5
- 238000005192 partition Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 241000219094 Vitaceae Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 235000021021 grapes Nutrition 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
- B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls
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- 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
- B21B13/18—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/42—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for step-by-step or planetary rolling
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/06—Drives for metal-rolling mills, e.g. hydraulic drives for non-continuously-operating mills or for single stands
- B21B35/08—Drives for metal-rolling mills, e.g. hydraulic drives for non-continuously-operating mills or for single stands for reversing rolling mills
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
In the multi-high rolling mill according to the present invention, a pair of upper and lower work rolls for rolling material (W) is disposed; two upper first intermediate rolls are disposed outside the work rolls respectively so as to contact with the work rolls; three upper rolls disposed outside the first intermediate rolls respectively to contact with the first intermediate rolls. A second intermediate roll that is a center roll of the three rolls is functioned as a drive roll, and two rolls of the three rolls at both sides are functioned as first back-up rolls for supporting the first intermediate rolls. At least one upper second back-up roll and at least one lower second back-up roll are disposed outside the upper and lower second intermediate rolls respectively to support the second intermediate rolls. According to such a structure, both productivity and satisfactory shape controllability can be attained in the multi-high rolling mill.
Description
Technical field
The present invention relates to be used for the multistage roll mill of the rolling grade of thin plate.
Background technology
As everyone knows, rolling stocks such as stainless steel, titanium, special steel, copper are being carried out use multistage roll mill when cold rolling.As multistage roll mill, the roller group of generally using the support works roller as cluster of grapes with " the multistage roll mill of multiple roll type " of fan-shaped expansion.
Roller group as supporting this working roll has backing roll and intermediate calender rolls, and the quantity of roller that known basis is used for the multistage roll mill of multiple roll type is called as 12 grades, 14 grades, 20 grades kind.According to following reason and the multistage roll mill of multiple roll type is divided into such progression.
In the multistage roll mill of multiple roll type,, possesses a pair of working roll up and down that this rolling stock is rolled usually at the surface and the back side of rolling stock.And the roller group that supports this working roll is provided in the upside and the downside of working roll respectively.About this roller group, for example, if only be conceived to the roller group of upside, so, the roller in the outside is set for the deflection that prevents inboard roller, thereby for example near the outside (upside) of the working roll of upside, being 2, (upside) is that 3 mode increases gradually along with leave the quantity that makes the roller that is equipped with from working roll in the more lateral, in addition, generally speaking, the roller of the roller in the outside directly roller than inboard is bigger.
Shown in Fig. 4 (a), if with near the intermediate calender rolls the upside of working roll 105 106 as driven roller, be equipped with 3 backing rolls 108 at the upside of this intermediate calender rolls, so, become 12 grades multistage roll mill.In addition, shown in Fig. 4 (b),, so, become 14 grades multistage roll mill if be equipped with 4 backing rolls 108 at the upside of intermediate calender rolls (driven roller) 106.On the other hand, if 2 of the two ends in 3 the 2nd intermediate calender rolls that near the upside of 2 the 1st intermediate calender rolls that will be being provided to the outside of working roll is equipped with as driven roller, upside at these 3 the 2nd intermediate calender rolls is equipped with 4 backing rolls, so, becomes 20 grades multistage roll mill as Fig. 4 (d).
As 12 grades above-mentioned multistage roll mill, known " R﹠amp; D Kobe Steel skill is reported Vol.58No.2, issue a magazine in August, 2008 by (with reference to KT milling train (12 grades of milling trains) and KST milling train (20 grades of milling trains)) " the KT milling train put down in writing; in addition; as 14 grades multistage roll mill; the roll mill of being put down in writing for known TOHKEMY 2004-136328 number; and, as 20 grades multistage roll mill, the KST milling train that known above-mentioned document is put down in writing.
Summary of the invention
, recently strict year by year for the requirement of the precision of the rolled form of the sheet products of producing by multistage roll mill, be in the tendency of the shape control performance of paying attention to multistage roll mill.About the formation and the performance of the shape of multistage roll mill control actuator, for example, open 14 pages～15 pages of above-mentioned document.
Especially, under with the situation of backing roll, via intermediate calender rolls, working roll and the shape of controlled rolling material as shape control actuator.
In order to make shape controlled good, preferably few by the flat influence of the roller that contact caused between between the roller of centre.Therefore, because the progression of intervenient intermediate calender rolls is few, thereby as 12 grades of roll mills and 14 grades of roll mills from backing roll via intermediate calender rolls, working roll and the flat influence of roller of the shape of controlled rolling material, than as 20 grades of roll mills from backing roll via the 2nd intermediate calender rolls, the 1st intermediate calender rolls, working roll the flat influence of the roller of the shape of controlled rolling material also still less, the effect of shape control is big.
; wide cut about the hard material of the high rolling torque of needs is rolling; owing to the relation in the space between the driven roller makes 20 grades of roll mills can transmit higher torque than 12 grades of roll mills and 14 grades of roll mills, thereby, can guarantee high productivity and favourable.
If will use 20 grades of roll mills of the working roll in identical roller footpath compares with 12 grades, 14 grades roll mills, so, in 20 grades of roll mills, the 2nd intermediate calender rolls of both sides becomes driven roller, in contrast, in 12 grades, 14 grades roll mills, near the outside of working roll intermediate calender rolls becomes driven roller, if thereby compare with 20 grades of roll mills, so, interval between the driven roller is with respect to above-below direction and left and right directions all less Fig. 4 of (for example, with reference to this specification).
As a result, in narrow 12 grades and the 14 grades roll mills in the interval between driven roller,, the restriction in the space of the driving system that driven roller is set is difficult to transmit and 20 grades of driving torques that roll mill is equal owing to making.
In 12 grades and 14 grades of roll mills, in order to increase the transmission driving torque, for example, the universal-joint spindle of the size that the position of the plate width direction (transverse direction of Fig. 5 of this specification) of the cross part of the universal-joint spindle of the driving torque of change transmission sometimes and employing are bigger, but, even use this method, transmit driving torque also not as good as 20 grades of roll mills.
Therefore, desiring under the situation about the hard wide cut material of the thicker hard stainless steel material of the thickness ratio of the wide cut of for example 1300～1600mm and 4～5mm being rolled with the high reduction ratio more than the degree of per 1 passage 25%, it is controlled and use 20 grades of roll mills to sacrifice shape.
The present invention puts in view of the above problems and makes, its purpose is, a kind of multistage roll mill is provided, and this multistage roll mill has and 12 grades, the 14 grades good shape control abilities that roll mill is equal, and, have and 20 grades of equal or more driving torques of roll mill.
In order to reach above-mentioned purpose, multistage roll mill of the present invention is taked following technological means.
Multistage roll mill of the present invention, by constituting with lower member: a pair of up and down working roll is rolled rolling stock; Each the 1st intermediate calender rolls of 2 up and down is provided in the outside of described working roll in the mode that contacts with described working roll; Each roller of 3 up and down, be provided in the outside of described the 1st intermediate calender rolls in the mode that contacts with described the 1st intermediate calender rolls, at this, the roller of the central authorities in described 3 rollers is the 2nd intermediate calender rolls as driven roller, and 2 rollers at two ends are the 1st backing rolls that support described the 1st intermediate calender rolls; And each the 2nd backing roll more than 1 up and down, be provided in the outside of described the 2nd intermediate calender rolls in the mode that supports described the 2nd intermediate calender rolls.
The present inventor considers that 2 rollers that are provided in the outside of working roll are not driven rollers, any of 3 rollers that is provided in the more lateral of these 2 rollers can not be driven as driven roller.And, recognize that the roller that makes 3 central authorities in the roller drives, and, be provided with backing roll at the roller of this driving, thus, can take into account productivity and shape control performance, thereby finish the present invention.
Promptly, in existing 12 grades of roll mills, 14 grades of roll mills, 4 the 1st intermediate calender rolls are as driven roller, but, be 2 the 2nd intermediate calender rolls by making driven roller, make that the interval between the driven roller is bigger on above-below direction, in addition, by make use on the left and right directions 2, following 2 driven roller be on 1, following 1, thereby on left and right directions, also can guarantee sufficient space, thereby can adopt the big universal-joint spindle of tactical diameter.Therefore, can add and 20 grades of equal or more driving torques of roll mill.
If drive the backing roll of the central authorities of 12 grades of roll mills, so, can access and the identical driving torque of aforesaid multistage roll mill, but, in this case, in order to drive, the backing roll that is necessary to make the central authorities of 12 grades of roll mills is not the roller of the plate width direction partition type that is made of a plurality of bearings and saddle, but identical with the intermediate calender rolls of 12 grades of roll mills, be the roller of one thing.
Under these circumstances, because the backing roll of central portion is not to be supported on housing by a plurality of saddles along plate width direction, thereby the working roll deflection is big, becomes to be difficult to obtain good plate shape.Because backing roll is to cut apart roller, be the structure that is supported on housing along plate width direction cutting apart the saddle that roller possesses, thereby the working roll deflection of multistage roll mill is little, about this point, for example, at " R﹠amp; D Kobe Steel skill is reported Vol.59 No.2, and issue a magazine in August, 2009 " 60 pages～61 pages open.
In addition, 2 the 1st backing rolls of the both sides near 3 rollers the outside of the 1st intermediate calender rolls are formations identical with the backing roll of existing 12 grades, 14 grades roll mills, thus, also can in multistage roll mill of the present invention, be provided as the convexity adjusting apparatus of the actuator of shape control, thereby can adhere to that 12 grades, the 14 grades good shapes that roll mill possessed are controlled.
In addition, in aforesaid multistage roll mill, because the 2nd intermediate calender rolls is a driven roller, the 2nd intermediate calender rolls is the roller of one thing, thereby be necessary the 2nd backing roll of the plate width direction partition type that constitutes by a plurality of bearings and saddle in the arranged outside of the 2nd intermediate calender rolls the working roll deflection to be minimized.
Can use the multistage roll mill that possesses each 2 the 2nd backing roll in the outside of above-mentioned the 2nd intermediate calender rolls respectively and constitute 16 grades.
In addition, can use the multistage roll mill that possesses each 1 above-mentioned the 2nd backing roll in the outside of above-mentioned the 2nd intermediate calender rolls respectively and constitute 14 grades.
The multistage roll mill of the application of the invention, even thereby above-mentioned hard wide cut material, the shape that also can keep existing 12 grades, 14 grades roll mills is controlled, has and 20 grades of equal or more driving torques of roll mill, with high reduction ratio hard wide cut material is rolled.
Description of drawings
Fig. 1 is the front elevation that pattern ground shows the rolling device that possesses multistage roll mill of the present invention.
Fig. 2 is the figure that the roller of the multistage roll mill of demonstration present embodiment disposes.
Fig. 3 is the figure that the roller of the multistage roll mill of another embodiment of demonstration disposes.
Fig. 4 is the figure that the arrangement example that will use the roll row of the existing multistage roll mill under the situation in same working roll footpath to list example and the 1st embodiment of the present invention compares, Fig. 4 (a) is 12 grades, Fig. 4 (b) is 14 grades, Fig. 4 (c) is related 16 grades of the arrangement example of the 1st embodiment of the present invention, and Fig. 4 (d) is 20 grades.
Fig. 5 is the figure of example of driving system that shows the driving intermediate calender rolls of existing multistage roll mill (12 grades, 14 grades).
The specific embodiment
Below, based on accompanying drawing, the present embodiment of multistage roll mill 1 of the present invention is described.
At first, below, illustrate the rolling device 2 that is provided with multistage roll mill 1, explain multistage roll mill 1 of the present invention.
As shown in Figure 1, rolling device 2 have to rolling rolling stock W carry out uncoiling uncoiling portion 3 and to the coiling portion 4 that reels of rolling rolling stock W, between uncoiling portion 3 and coiling portion 4, be provided with the multistage roll mill 1 that rolling stock W is rolled.This rolling device 2 can be on one side carries out positive anti-switching (plate is reversed between the blacking arrow of Fig. 1 and blank arrow by direction) to plate by direction, on one side rolling stock W is carried out oppositely rolling.
As shown in Figure 2, multistage roll mill 1 of the present invention constitutes working roll the 5, the 2nd intermediate calender rolls (driven roller) the 6, the 1st intermediate calender rolls 7 and backing roll 8 many combinations, the appearance of many roller combinations is seemed just as cluster of grapes, thereby be called as the multistage roll mill of multiple roll type, use man-hour the tabular rolling stock W that is made of stainless steel, titanium, special steel, copper etc. being rolled add.
About during in addition, with the as an illustration multistage up and down roll mill 1 on the paper of Fig. 2.In addition, with about on the paper of Fig. 2 during as an illustration multistage roll mill 1 about.The direction of these directions when watching multistage roll mill 1 from driving side (drive side) is consistent.In addition, in the following description, the symbol identical to identical part mark.The title of these parts is also identical with function.So, do not repeat detailed explanation about these parts.
At first, each roller that constitutes multistage roll mill 1 is described.
At multistage roll mill 1, be benchmark with the rolling stock W that transfers on the central water level land of above-below direction, the configuration that becomes mirror image (symmetry) mutually with upside and downside at rolling stock W possesses many rollers (below, these many rollers are called roller group 9).So, in the following description, be that typical example illustrates each roller that constitutes the roller group with the roller group 9 of upside.
The roller group 9 of upside is made of 6 and 4 backing rolls of 5,2 the 1st 7,1 the 2nd intermediate calender rolls of intermediate calender rolls of 1 working roll (driven roller) 8, and the multistage roll mill 1 of present embodiment becomes 16 grades of formations.
As shown in Figure 2, working roll 5 is diameter rollers littler than other rollers, if the situation that stainless rolling stock W is carried out cold rolling equipment so, forms
The diameter of degree.Working roll 5 is made of a pair of up and down, on one side rolling stock W is sandwiched between roller, apply rolling load on one side.
The 1st intermediate calender rolls 7L, 7R be with the upper left side of working roll 5 and upper right side (outside) in abutting connection with and the roller that is equipped with is spaced a distance d from one another and is equipped with 2.The 1st intermediate calender rolls 7L, 7R are the roller of diameter greater than working roll 5, are equipped with the mode that the outer peripheral face of working roll 5 contacts with separately outer peripheral face.At the upside of the 1st intermediate calender rolls 7L, 7R, the 2nd intermediate calender rolls (driven roller) 6 is equipped with, can the driving force of the 2nd intermediate calender rolls (driven roller) 6 be passed to working roll 5 via the 1st intermediate calender rolls 7L, 7R.
The 2nd intermediate calender rolls (driven roller) 6 with about each mode that contacts of the 1st intermediate calender rolls 7L, 7R when the intermediate calender rolls 7L from the left side watches, be provided in the upper right side, when the intermediate calender rolls 7R from the right side watches, be configured in the upper left side, respectively be provided with 1 in each roller group 9.The 2nd intermediate calender rolls (driven roller) the 6th, diameter are provided with around the axle center rotation freely than the 1st intermediate calender rolls 7L, roller that 7R is bigger.The 2nd intermediate calender rolls (driven roller) 6 is connected with the universal-joint spindle that does not show among the figure at shaft end, becomes to utilize the driving force that is produced by motor to drive constituting of rotation.
With above-mentioned working roll 5 is benchmark, in the more lateral of the 2nd intermediate calender rolls (driven roller) 6 and the 1st intermediate calender rolls 7L, 7R, is equipped with the backing roll 8 that supports these rollers.In backing roll 8, have the 1st backing roll 10L, the 10R of support the 1st intermediate calender rolls 7 and the 2nd backing roll 11L, the 11R of support the 2nd intermediate calender rolls (driven roller) 6.
The 1st backing roll 10L, 10R are provided in the upper left side when the intermediate calender rolls 7L from the left side watches, be provided in the roller of upper right side when the 1st intermediate calender rolls 7R from the right side watches, and all form than the 1st intermediate calender rolls 7L, diameter that 7R is bigger.These the 1st backing rolls 10L, 10R are equipped with from the 2nd intermediate calender rolls (driven roller) 6 partition distance, and the 1st backing roll 10R and the interval between the 2nd intermediate calender rolls (driven roller) 6 that the 1st backing roll 10L on the left of being formed on and the interval between the 2nd intermediate calender rolls (driven roller) 6 were set at and were formed on the right side are roughly the same.And, the 1st backing roll 10L in left side and the 1st intermediate calender rolls 7L butt in left side, simultaneously, the 1st intermediate calender rolls 7R butt on the 1st backing roll 10R on right side and right side can compress the formation that the 1st intermediate calender rolls 7L, 7R support the 1st intermediate calender rolls 7L, 7R on one side on one side become respectively from the top.
The 2nd backing roll 11L, 11R are being provided in upper left side and upper right side respectively when the 2nd intermediate calender rolls (driven roller) 6 is watched.These the 2nd backing rolls 11L, 11R respectively with the last side contacts of the 2nd intermediate calender rolls (driven roller) 6, support the 2nd intermediate calender rolls (driven roller) 6 in the mode that compresses from the top.
Then, add the contrast with the existing multistage roll mill 1 of Fig. 4～shown in Figure 5, the action effect that multistage roll mill of the present invention possesses is described.In addition, below illustrated action effect all are the action effects that possess the situation that the multistage roll mill of the working roll of same diameter compares each other, the multistage roll mill of shown in Figure 4 12 grades, 14 grades and 20 grades all possesses the identical working roll of diameter and multistage roll mill of the present invention 1.
For example, in the multistage roll mill 101 of 12 grades shown in Fig. 4 (a), dispose 2 intermediate calender rolls 106 near the outside of working roll 105, the outside of these 2 intermediate calender rolls 106 is 3 backing rolls 108.In addition, in the multistage roll mill 101 of 14 grades shown in Fig. 4 (b), though backing roll 108 is 4, common ground is, near the outside of working roll 105, be provided with 2 intermediate calender rolls 106, near the intermediate calender rolls 106 in the outside of working roll 105 is driven as driven roller.
Certainly, in the formation that near the intermediate calender rolls 106 the outside that makes working roll 105 in this wise drives as driven roller, the interval between the driven roller is also less on above-below direction or left and right directions easily.For example, if with the example that is spaced apart of the above-below direction between the driven roller, so, interval L2, L3 between these driven rollers are very little.Owing to be provided with the universal-joint spindle that transfers a driving force to intermediate calender rolls 106 at these shaft ends that become the intermediate calender rolls 106 of driven roller, if thereby desire to make universal-joint spindle in narrow interval L2, L3, to rotate as described above each other, so, mutual cross part might interfere with each other each other and make rotation become difficult.So in the multistage roll mill 101 of 12 grades or 14 grades, as shown in Figure 5, sometimes stagger (as so-called interconnected) in the axial position of the cross part of universal-joint spindle, universal-joint spindle each other can be not up and down or about interfere the ground rotation.
; of the present invention multistage roll mill 1 shown in the image pattern 4 (c) is such; the 2nd intermediate calender rolls 6 is a driven roller; thus; interval L1 between the 2nd intermediate calender rolls (driven roller) 6,6 (L1＞L2, L3) is broad also, in addition, does not also have the interference of the universal joint of left and right directions; thereby can use the big universal-joint spindle of tactical diameter, can give big driving torque to the 2nd intermediate calender rolls (driven roller) 6.The result, give big driving torque to the 2nd intermediate calender rolls (driven roller) 6, even in the multistage roll mill 101 of 12 grades or 14 grades, be difficult to rolling rolling stock, for example the thick stainless-steel sheet of the wide cut of 1300～1600mm and 4～5mm also can be rolled with the high reduction ratio more than the degree of per 1 passage 25%.
In addition, in existing 12 grades of roll mills, 14 grades of roll mills, 4 the 1st intermediate calender rolls 106 are as driven roller, but in multistage roll mill 1 of the present invention, 2 (each 1 up and down) the 2nd intermediate calender rolls 6 are as driven roller.Thus, the interval between the 2nd intermediate calender rolls (driven roller) 6 can be bigger on above-below direction.In addition, in existing 12 grades of roll mills, 14 grades of roll mills, for using 2, following 2 driven roller on the left and right directions, in multistage roll mill 1 of the present invention, driven roller is last 1, following 1, thus, also can guarantee sufficient space on left and right directions.Therefore, can adopt the big universal-joint spindle of tactical diameter.So, can add and 20 grades of equal or more driving torques of roll mill.
, in multistage roll mill 1 of the present invention, as mentioned above, owing to the roller of the central portion that works as backing roll 108 in 12 grades multistage roll mill 101 is a driven roller, thereby 6 rollers that become one thing of Fig. 2.Therefore, be necessary in the outside of this roller such as Fig. 2 or the 1st backing roll that a plurality of plate width direction partition types that are made of bearing and saddle are set shown in Figure 3, the working roll deflection is minimized.
In addition, in the multistage roll mill 101 of 20 grades shown in Fig. 4 (d), dispose 2 intermediate calender rolls 107 near the outside of working roll 105, the intermediate calender rolls 106 that is provided in the two ends in 3 rollers in the outside of these 2 intermediate calender rolls 107 becomes 2 driven rollers.Promptly, in 20 grades multistage roll mill 101, compare with the multistage roll mill 101 of 12 grades or 14 grades, interval between the intermediate calender rolls (driven roller) 106 on above-below direction greatly to L4 (L1 〉=L4＞L2, L3), compare with 14 grades with 12 grades, also bigger on left and right directions, even do not adopt interconnected etc., also can be connected to intermediate calender rolls (driven roller) 106 by directly that tactical diameter is big universal-joint spindle, if compare with 12 grades of multistage roll mills 101 with 14 grades, so, can give big driving torque to intermediate calender rolls (driven roller) 106.
, in 20 grades multistage roll mill 101,2 that are provided in two ends in 3 rollers in the outside of intermediate calender rolls 107 are intermediate calender rolls (driven roller) 106, in these between the more lateral of roller (driven roller) 106, dispose 4 backing rolls 108.Therefore, under the situation of carrying out shape control by backing roll (convexity control), be arranged in quantity from the backing roll 108 of upper outside to the contact point between the roller in the path of working roll 105 (Fig. 4 (a) and (b) and the point of (d) representing) by stain, in the multistage roll mill 101 of 12 grades and 14 grades, for about each 2 place, in contrast, in 20 grades multistage roll mill 101, for about each 3 place.Like this, in 20 grades multistage roll mill 101, be subjected to the influence of the strain at the contact point place between roller easily widely, shape is controlled poor.In the present invention, carry out shape control (convexity control) by the 1st backing roll 10L, 10R.Therefore, shown in Fig. 4 (c), being positioned at from the 1st backing roll 10L, 10R to the contact point between the roller in the path of working roll 5 is 2, compares the controlled excellence of shape with 20 grades multistage roll mill 101.
In addition, in 20 grades multistage roll mill 101, the balance of the size that each roller is mutual makes the diameter of the 1st intermediate calender rolls 107 less than 12 grades and 14 grades multistage roll mill 101, the intermediate calender rolls of multistage roll mill 1 of the present invention, corresponding space strictness, and the size of thrust bearing etc. is restricted.So, in the shape control (laterally adjusting device) of the intermediate calender rolls that intermediate calender rolls is axially moved, in 20 grades multistage roll mill 101, define the driving force of the 1st intermediate calender rolls 107, thereby the restriction of the horizontal translational speed of 20 grades multistage roll mill 101 is stricter than 12 grades, 14 grades, multistage roll mill of the present invention, is difficult to promptly control shape.
Like this, in the shape control (convexity control) of backing roll, the contact point between the roller of 20 grades of roll mills is more than 12 grades, 14 grades, multistage roll mill of the present invention, and shape is controlled poor.In addition, with the shape control (laterally adjusting) of the intermediate calender rolls of working roll butt in, the rolled form control ability of 20 grades of roll mills 101 that the intermediate calender rolls footpath is little is poorer than 12 grades, 14 grades, multistage roll mill of the present invention.
In contrast, in multistage roll mill 1 of the present invention, controlled rolling shape reliably simultaneously, is rolled rolling stock W with good state.
[embodiment]
Then, to use 16 grades the situation of multistage roll mill 1 as embodiment, with the situation of the multistage roll mill 101 that uses 12 grades and 20 grades as a comparative example 1 and comparative example 2, fatigue strength with the universal-joint spindle that can use the driving torque that can be passed to each multistage roll mill 1 compares as example, thus, action effect of the present invention is described in further detail.
In addition, all use same diameter at the multistage roll mill of following illustrated embodiment, comparative example 1 and comparative example 2
The situation of working roll under, with identical benchmark driving torque relatively.
In addition,, enumerated universal-joint spindle, waited other driving torque transfer devices but also can use gear type to connect axle with as the device that transmits driving torque.
[comparative example 1]
The multistage roll mill 101 of the comparative example 1 shown in Fig. 4 (a) be
The outside of working roll 105 near be provided with 12 grades multistage roll mill of 2 intermediate calender rolls (driven roller) 106.In this case, because the interval between the intermediate calender rolls (driven roller) 106 is very narrow on above-below direction and left and right directions, thereby must be equipped with 4 universal joints in minimum space.Therefore, even connect axle for interconnected, universal-joint spindle also can only use the connect axle of tactical diameter for maximum 100mm.
Because the tired torque of torsional direction that connects axle of this tactical diameter 100mm is the 160Kgm/ root, even thereby 4 connect axle and transmit driving torque equably, the driving torque maximum that is passed to multistage roll mill 1 is 640Kgm just also.
[comparative example 2]
On the other hand, the multistage roll mill 101 of the comparative example 2 shown in Fig. 4 (d) be
The outside of working roll 105 near be provided with 2 multistage roll mills of 20 grades as the intermediate calender rolls 106 of driven roller via intermediate calender rolls 107.In this case, at equal broad on the above-below direction and on the left and right directions, universal-joint spindle can use the connect axle of tactical diameter for maximum 125mm as the interval between the intermediate calender rolls 106 of driven roller.
Because the tired torque of the torsional direction that connects axle of this tactical diameter 125mm is the 280Kgm/ root, if thereby 4 connect axle transmitting torque equably, so, the driving torque that is passed to multistage roll mill 1 is 1120Kgm, can produce the driving torque a little less than 2 times of comparative example 1.
[embodiment]
With respect to above-mentioned comparative example 1 and comparative example 2, embodiment 1 is 16 a grades such multistage roll mill: shown in Fig. 4 (c), be provided with 2 the 1st intermediate calender rolls 7 between working roll 5 and the 2nd intermediate calender rolls 6 as driven roller, 1 of central authorities who only is arranged near 3 rollers the outside of 2 the 1st intermediate calender rolls 7 is the 2nd intermediate calender rolls 6 as driven roller.In this case, between the 2nd intermediate calender rolls (driven roller) 6, on above-below direction, produce wide interval, simultaneously, owing to do not have driven roller on the left and right directions, thereby do not have size restrictions.
So, can use the axle that connects of the tactical diameter 180mm that in comparative example 1 and comparative example 2, is difficult to adopt.
Because the tired torque of the torsional direction that connects axle of this tactical diameter 180mm is the 1500Kgm/ root, though thereby the quantity that connects axle has only 2, but the driving torque that is passed to multistage roll mill 1 is 3000Kgm, can transmit about 4.6 times of comparative example 1, about 3 times driving torque of comparative example 2.
In addition, in this wise on above-below direction, produce between the driven roller wide interval aspect also the multistage roll mill (20 grades) with comparative example 2 is identical, but in comparative example 2, intermediate calender rolls (driven roller) about 106 is provided with abreast, intermediate calender rolls 107 is set between the roller (driven roller) 106 between being necessary in these or connects the support component of axle.Therefore, in the multistage roll mill of comparative example 2, be difficult to guarantee sufficiently on left and right directions, to be provided with the space of universal-joint spindle.Therefore, tactical diameter can not be installed greatly to the axle that connects of 180mm as embodiment, the driving torque that can transmit is bigger unlike the multistage roll mill 1 of embodiment.
In addition, in comparative example 1 and comparative example 2, be used for multistage roll mill 101 to connect axle all be 4, especially and since comparative example 1 connect axle for interconnected, thereby to connect axle be 2 kinds.Therefore, reserve possess and safeguard aspect, poorer than 2 that only use a kind multistage roll mills 1 of embodiment that connect axle.
, should consider that this time all aspects of disclosed embodiment all are examples, rather than restriction.Scope of the present invention is not to be represented by above-mentioned explanation, but is represented by the scope of claim, and intention comprises and the meaning of the scope equalization of claim and all changes in the scope.
In the above-described embodiment, the 2nd intermediate calender rolls (driven roller) 6 is provided with 2 the 2nd backing rolls 11, still, the quantity of the 2nd backing roll 11 also can be 1.In this case, as shown in Figure 3, the mode on the line of axis of rotation of the axis of rotation that connects working roll 5 and the 2nd intermediate calender rolls (driven roller) 6 of being positioned at the axis of rotation of the 2nd backing roll 11 is equipped with the 2nd backing roll 11 and gets final product.
Claims (5)
1. multistage roll mill is made of following parts:
A pair of up and down working roll is rolled rolling stock;
Each the 1st intermediate calender rolls of 2 up and down is provided in the outside of described working roll in the mode that contacts with described working roll;
Each roller of 3 up and down, be provided in the outside of described the 1st intermediate calender rolls in the mode that contacts with described the 1st intermediate calender rolls, at this, the roller of the central authorities in described 3 rollers is the 2nd intermediate calender rolls as driven roller, and 2 rollers at two ends are the 1st backing rolls that support described the 1st intermediate calender rolls; And
Each the 2nd backing roll more than 1 up and down is provided in the outside of described the 2nd intermediate calender rolls in the mode that supports described the 2nd intermediate calender rolls.
2. multistage roll mill according to claim 1 is characterized in that, possesses each described the 2nd backing roll of 2 up and down in the outside of described the 2nd intermediate calender rolls, and described multistage roll mill constitutes 16 grades on the whole.
3. multistage roll mill according to claim 1 is characterized in that, possesses each described the 2nd backing roll of 1 up and down in the outside of described the 2nd intermediate calender rolls, and described multistage roll mill constitutes 14 grades on the whole.
4. multistage roll mill according to claim 1 is characterized in that, constitutes the shape control of being carried out convexity control by described the 1st backing roll.
5. multistage roll mill according to claim 1 is characterized in that the diameter of described the 1st intermediate calender rolls is bigger than described working roll, and the diameter of described the 2nd intermediate calender rolls and described the 1st backing roll is bigger than described the 1st intermediate calender rolls.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010054369A JP5578892B2 (en) | 2010-03-11 | 2010-03-11 | Multi-stage rolling mill |
| JP2010-054369 | 2010-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102189101A true CN102189101A (en) | 2011-09-21 |
Family
ID=44275695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100643568A Pending CN102189101A (en) | 2010-03-11 | 2011-03-10 | Multi-high rolling mill |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20110219840A1 (en) |
| EP (1) | EP2364787A1 (en) |
| JP (1) | JP5578892B2 (en) |
| KR (1) | KR101271845B1 (en) |
| CN (1) | CN102189101A (en) |
| TW (1) | TWI527636B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104138904A (en) * | 2013-05-10 | 2014-11-12 | 株式会社神户制钢所 | Multi-stage rolling mill |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10357903B2 (en) | 2012-12-06 | 2019-07-23 | Scivax Corporation | Roller-type pressurization device, imprinter, and roller-type pressurization method |
| US10421218B2 (en) * | 2014-06-03 | 2019-09-24 | Scivax Corporation | Roller-type depressing device, imprinting device, and roller-type depressing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3461704A (en) * | 1966-12-29 | 1969-08-19 | Textron Inc | Cluster arrangement |
| CN2724868Y (en) * | 2004-09-03 | 2005-09-14 | 郑建汉 | Apparatus for processing metallic composite material |
| CN1814846A (en) * | 2005-02-01 | 2006-08-09 | 江苏天工工具股份有限公司 | Rare-earth high-speed tool-steel and making method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57127512A (en) * | 1981-01-29 | 1982-08-07 | Nippon Steel Corp | Method and apparatus for cold rolling of strip |
| JPS57184502A (en) * | 1981-05-06 | 1982-11-13 | Nippon Steel Corp | Double-purpose multiple stages cluster rolling mill |
| JPH0646562Y2 (en) * | 1989-02-23 | 1994-11-30 | 株式会社神戸製鋼所 | 14-high rolling mill for high load |
| DE69009102T3 (en) * | 1989-06-05 | 2001-02-08 | Kawasaki Steel Co | Multi-roll stand. |
| JPH05123710A (en) * | 1991-10-29 | 1993-05-21 | Kobe Steel Ltd | 14 stages rolling mill |
| JPH05123709A (en) * | 1991-10-29 | 1993-05-21 | Kobe Steel Ltd | 14 stages rolling mill |
| JP2004136328A (en) | 2002-10-17 | 2004-05-13 | Kobe Steel Ltd | Multiple rolling mill |
-
2010
- 2010-03-11 JP JP2010054369A patent/JP5578892B2/en not_active Expired - Fee Related
-
2011
- 2011-02-17 EP EP11154782A patent/EP2364787A1/en not_active Withdrawn
- 2011-02-22 TW TW100105800A patent/TWI527636B/en not_active IP Right Cessation
- 2011-02-22 US US13/032,209 patent/US20110219840A1/en not_active Abandoned
- 2011-03-10 KR KR1020110021308A patent/KR101271845B1/en active IP Right Grant
- 2011-03-10 CN CN2011100643568A patent/CN102189101A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3461704A (en) * | 1966-12-29 | 1969-08-19 | Textron Inc | Cluster arrangement |
| CN2724868Y (en) * | 2004-09-03 | 2005-09-14 | 郑建汉 | Apparatus for processing metallic composite material |
| CN1814846A (en) * | 2005-02-01 | 2006-08-09 | 江苏天工工具股份有限公司 | Rare-earth high-speed tool-steel and making method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104138904A (en) * | 2013-05-10 | 2014-11-12 | 株式会社神户制钢所 | Multi-stage rolling mill |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2364787A1 (en) | 2011-09-14 |
| JP2011183450A (en) | 2011-09-22 |
| TWI527636B (en) | 2016-04-01 |
| KR20110102829A (en) | 2011-09-19 |
| US20110219840A1 (en) | 2011-09-15 |
| JP5578892B2 (en) | 2014-08-27 |
| KR101271845B1 (en) | 2013-06-07 |
| TW201201919A (en) | 2012-01-16 |
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Application publication date: 20110921 |