CN102791392B - Multistage cluster plate mill - Google Patents
Multistage cluster plate mill Download PDFInfo
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- CN102791392B CN102791392B CN201180010748.4A CN201180010748A CN102791392B CN 102791392 B CN102791392 B CN 102791392B CN 201180010748 A CN201180010748 A CN 201180010748A CN 102791392 B CN102791392 B CN 102791392B
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- backing roll
- axle box
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- roll
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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
Abstract
Disclosed is a multistage cluster plate mill (1) formed by facing cluster constructions (10). The cluster constructions (10) are provided with auxiliary roller axle boxes (12), central auxiliary roller axle boxes (13), beams (16), first rolling devices (19) and second rolling devices (20). The roller axle boxes (12) jointly support the first rollers (5) and second rollers (6). The central auxiliary roller axle boxes (13) are equipped independently from the auxiliary roller axle boxes (12) and support the central auxiliary roller (7). The beams (16) support the central auxiliary roller axle boxes (13), and are slideable in opposite directions together with the central auxiliary axle boxes (13). The first rolling devices (19) support the beams (16), and also slide the beams (16) and roll the central auxiliary roller axle boxes (13) in a vertical direction. The second rolling devices (20) support the auxiliary roller axle boxes (12) equipped in the beams (16) and also allow the auxiliary roller axle boxes (12) which are independent of the central auxiliary roller axle boxes (13) to slide and roll in a vertical direction.
Description
Technical field
The present invention relates to a kind of multistage roller group plate mill.
No. 2010-042433, the Patent of the application based on filing an application in Japan on February 26th, 2010 and advocate priority, and quote its content at this.
Background technology
As the plate mill of rolling workpiece, be known to the multistage roller group plate mill that following patent documentation 1 is recorded.
This multistage roller group plate mill adopts following formation: have the backing roll axle box of public ground axle suspension the first backing roll and the second backing roll, and then the central support roll shaft sand frame that axle is supported to central branches runner enters.Thus, make mechanical structure and simple to operateization, alleviate the burden of maintenance operation.In this multistage roller group plate mill, the hold-down devices of built-in central branches runner special use in backing roll axle box, can for central branches runner, apply downforce dividually with first, second backing roll, central branches runner is pressed down with downforce corresponding to downforce being pressed down with backing roll axle box.
Patent documentation 1: TOHKEMY 2000-210705 communique.
But the central branches runner of above-mentioned formation is supported with the form that makes bearing load support via axle in the backing roll axle box of first, second backing roll, so cannot strengthen the axle box that central branches runner uses, the hold-down devices of central branches runner special use.Therefore, intensity, the output loads of central branches runner can only be reduced, the load applying separately to central branches runner cannot be increased.In addition, first and second backing roll directly bears the shakiness of the downforce change of central support axle box, so the change of the backing roll being caused by external interference becomes greatly.In addition, supporting roller sand frame enters central support roll shaft case, so when pulling down operation for roller for example grinds, also must pull down for the distribution of hold-down devices that is built in the central branches runner special use of backing roll axle box, it is complicated that operation becomes.
Summary of the invention
The present invention puts in view of the above problems and proposes, and its object is to provide a kind of can strengthen the intensity of central branches runner and the multistage roller group plate mill of output loads.In addition,, as the second object, object is to provide a kind of and can reduces the shakiness of the roller that external interference causes and then pull down the without difficulty multistage roller group plate mill of operation.
Solve the means of problem.
According to first method of the present invention, multistage roller group plate mill is, roller set constructor forms opposed to each other, and described roller set constructor has: workpiece roller, be arranged at the behind of this workpiece roller first intermediate roll and the second intermediate calender rolls, be arranged at this first intermediate roll behind the first backing roll and be arranged at this second intermediate calender rolls behind the second backing roll and be arranged at this first intermediate roll and the central branches runner of the behind of this second intermediate calender rolls.Above-mentioned roller set constructor has: the backing roll axle box of above-mentioned the first backing roll of public ground axle suspension and above-mentioned the second backing roll, the central support roll shaft case that axle supports above-mentioned central branches runner and arranges independently with above-mentioned backing roll axle box, support above-mentioned central support roll shaft case and be integrated with above-mentioned central support roll shaft case and the beam parts that slide freely along above-mentioned opposed direction, support above-mentioned beam parts and make above-mentioned beam parts slide and the first hold-down devices that above-mentioned central support roll shaft case is pressed down along above-mentioned opposed direction, the second hold-down devices that supports above-mentioned backing roll axle box with being equipped on above-mentioned beam parts and make independently above-mentioned backing roll axle box press down along above-mentioned opposed direction slip with above-mentioned central support roll shaft case.
According to first method of the present invention, the first hold-down devices of central branches runner special use is not built in the backing roll axle box that axle supports first, second backing roll, but is integrated with central support roll shaft case and is arranged at the beam parts that slide freely along opposed direction.Thus, be not to make bearing load support central branches runner via the form of first, second backing roll being carried out in the backing roll axle box of axle supporting, but can press down central branches runner via beam parts, can not be subject to arranging the restriction in space.Therefore, can increase central support roll shaft case, the first hold-down devices.
According to second method of the present invention, also can in above-mentioned backing roll axle box, be formed with recess, described recess position formation space overlapping with above-mentioned central support roll shaft case in above-mentioned opposed direction.
According to second method of the present invention, when independently backing roll axle box being applied to downforce with central support roll shaft case, can avoid the interference of backing roll axle box and central support roll shaft case, and can carry out relatively moving in opposed direction.
According to Third Way of the present invention, also can there is the downforce of controlling the driving of above-mentioned the first hold-down devices and above-mentioned the second hold-down devices and making to put on above-mentioned central branches runner and the downforce that puts on above-mentioned the first backing roll and above-mentioned the second backing roll and be the control device of set ratio.
According to Third Way of the present invention, by applying downforce to first, second backing roll independently with central branches runner, and the downforce that order puts on first, second backing roll is set ratio with respect to the downforce that puts on central branches runner, can apply to the backing roll of three suitable downforce.
According to cubic formula of the present invention, also can there is the intermediate calender rolls axle box and the intermediate calender rolls shift unit that makes above-mentioned first intermediate roll axially be shifted with above-mentioned intermediate calender rolls axle box link of the above-mentioned first intermediate roll of public ground axle suspension and above-mentioned the second intermediate calender rolls together with above-mentioned the second intermediate calender rolls.
According to cubic formula of the present invention, by making intermediate calender rolls axially be shifted, can increase the shape control ability to workpiece.In addition,, because first, second intermediate calender rolls is installed on public axle box, so the mechanical realization of shift unit and operation become simply, can alleviate the burden of maintenance operation.
According to the 5th mode of the present invention, also can on above-mentioned backing roll axle box, be formed on above-mentioned direction of principal axis in second recess in the overlapping formation space, position of above-mentioned intermediate calender rolls axle box.
According to the 5th mode of the present invention, when making intermediate calender rolls axle box axially be shifted, can avoid the interference of intermediate calender rolls axle box and backing roll axle box, and can carry out relatively moving in direction of principal axis.
According to the 6th mode of the present invention, above-mentioned the first hold-down devices of a side that also can above-mentioned opposed roller set constructor is fluid pressure type hold-down devices, and above-mentioned the first hold-down devices of the opposing party of above-mentioned opposed roller set constructor is electrodynamic type hold-down devices.
If the first hold-down devices of opposed roller set constructor is identical formation, be unfavorable for regulating downforce.According to the 6th mode of the present invention, making the first hold-down devices that a side roller set constructor possesses is fluid pressure type, and making the first hold-down devices that the opposing party's roller set constructor possesses is electrodynamic type, thereby makes the adjusting of downforce become easy.
The effect of invention
According to the present invention, can strengthen intensity, the output loads of central branches runner, can strengthen the load applying individually to central branches runner.In addition, first, second backing roll can directly not bear the shakiness of the downforce change of central support axle box, and the change of the backing roll being caused by external interference can not become greatly, can reduce by external interference, caused shakiness.And then, because the first hold-down devices is not built in backing roll axle box, so it is without difficulty to pull down operation.
Accompanying drawing explanation
Fig. 1 means the side view of the multistage roller group plate mill in embodiments of the present invention.
Fig. 2 is A-A line cutaway view in Fig. 1.
Fig. 3 means the stereogram of the configuration relation of intermediate calender rolls axle box, backing roll axle box and central support roll shaft case in embodiments of the present invention.
Fig. 4 means the stereogram of the backing roll axle box in embodiments of the present invention.
Fig. 5 means the figure of the configuration relation of the roller group that the roller set constructor in embodiments of the present invention possesses.
Description of reference numerals
1 ... multistage roller group plate mill, 2, 2 ' ... workpiece roller, 3, 3 ' ... first intermediate roll, 4, 4 ' ... the second intermediate calender rolls, 5, 5 ' ... the first backing roll, 6, 6 ' ... the second backing roll, 7, 7 ' ... central branches runner, 10, 10 ' ... roller set constructor, 11, 11 ' ... intermediate calender rolls axle box, 12, 12 ' ... backing roll axle box, 12a ... the first recess (recess), 12b ... the second recess, 13, 13 ' ... central support roll shaft case, 15, 15 ' ... intermediate calender rolls shift unit, 16, 16 ' ... beam (beam parts), 19, 19 ' ... the first hold-down devices, 20, 20 ' ... the second hold-down devices.
The specific embodiment
Multistage roller group plate mill referring to accompanying drawing explanation embodiments of the present invention.
Fig. 1 means the side view of the multistage roller group plate mill 1 in embodiments of the present invention.Fig. 2 is the A-A line cutaway view in Fig. 1.Fig. 3 means the stereogram of the configuration relation of intermediate calender rolls axle box 11, backing roll axle box 12 and central support roll shaft case 13 in embodiments of the present invention.Fig. 4 means the stereogram of the backing roll axle box 12 in embodiments of the present invention.Fig. 5 means the figure of the configuration relation of the roller group that the roller set constructor 10 in embodiments of the present invention possesses.
As shown in Figure 1, multistage roller group plate mill 1 is, roller set constructor 10 forms opposed to each other in world direction (above-below direction), and described roller set constructor 10 has: workpiece roller 2, the first intermediate roll 3 that this workpiece roller 2 is pressed down from the oblique the place ahead of rolling direction, the second intermediate calender rolls 4 pressing down from oblique rear, the first backing roll 5 that first intermediate roll 3 is pressed down from oblique the place ahead, the second backing roll 6 that the second intermediate calender rolls 4 is pressed down from oblique rear, the central branches runner 7 that first intermediate roll 3 and the second intermediate calender rolls 4 are pressed down.Workpiece (rolled stock) W(is with reference to Fig. 2) between opposed roller set constructor 10, be rolled.
In the following description, for the opposed roller set constructor 10 of roller set constructor 10 ', for fear of repeat specification and to the component part identical or equal with roller set constructor 10 label symbol ' and simple or the description thereof will be omitted on identical symbol.
First intermediate roll 3 and the second intermediate calender rolls 4 are supported by public intermediate calender rolls axle box 11 axles.The first backing roll 5 and the second backing roll 6 are supported by public backing roll axle box 12 axles.Central branches runner 7 is supported by central support roll shaft case 13 axles that arrange with respect to backing roll axle box 12 and independently.
That is, first intermediate roll 3 and the second intermediate calender rolls 4 are by their intermediate calender rolls axle box of public ground axle suspension 11 location.The first backing roll 5 and the second backing roll 6 are by their backing roll axle box of public ground axle suspension 12 location.Central branches runner 7 is by central support roll shaft case 13 location.
Workpiece roller 2 and workpiece roller 2 ' two ends by side face and its end face joins and around little perpendicular roller 2a freely of the axle rotation of extending along world direction and be urged and locate from horizontal direction both sides.Little perpendicular roller 2a is supported by axle 2b, and axle 2b is supported by the not shown arm that is arranged at case frame 17.
As shown in Figure 3 and 4, in backing roll axle box 12, be formed with the first recess (recess) 12a, described the first recess 12a position formation space overlapping with central support roll shaft case 13 in world direction (opposed direction), combines backing roll axle box 12 and central support roll shaft case 13 in the mode that can relatively move along world direction.In backing roll axle box 12, be formed with the second recess 12b, this second recess 12b position formation space overlapping with intermediate calender rolls axle box 11 in direction of principal axis (horizontal direction), combines intermediate calender rolls axle box 11 and backing roll axle box 12 in the mode that can axially relatively move.
As shown in Figure 2, intermediate calender rolls axle box 11 and intermediate calender rolls axle box 11 ' between be provided with roller bending device 14.Roller bending device 14 has along the retractile pressure cylinder of world direction mechanism, to first intermediate roll 3,3 ' and the second intermediate calender rolls 4,4 ' apply deflection load.
Intermediate calender rolls axle box 11 links with intermediate calender rolls shift unit 15, and described intermediate calender rolls shift unit 15 makes first intermediate roll 3 and the second intermediate calender rolls 4 axially be shifted.Intermediate calender rolls shift unit 15 has and the first shift arm 15a of intermediate calender rolls axle box 11 links and the second shift arm 15b of shift unit base side.The second shift arm 15b is to utilize in Fig. 2 and clamp the first shift arm 15a, the first shift arm 15a(intermediate calender rolls axle box 11 around the axle rotation of extending along paper vertical direction roller freely) can move along world direction.The second shift arm 15b utilizes component parts 21,22,23,24 and is supported in case frame 17.
Central support roll shaft case 13 be supported in beam (beam parts) 16 that along continuous straight runs extends to lower face side.Beam 16 as shown in Figure 1, is connected with pressure cylinder 18 with the beam suspention that is arranged at case frame 17, and two ends are guided by case frame 17, is integrated and along the slip of world direction freely with central support roll shaft case 13.
The first hold-down devices 19 that is provided with backbar 16 and makes beam 16 along the slip of world direction, central support roll shaft case 13 be pressed down to upper surface side at beam 16.
The first hold-down devices 19 of present embodiment is electrodynamic type hold-down devices, is arranged on the top plate portion of case frame 17.The first hold-down devices 19 drives worm screw 19a and turbine (not shown) and makes bar 19b move along world direction under the control of not shown control device.In the present embodiment, be provided with the loadometer 25 of measuring whole roll-force.
In addition, roller set constructor 10 ' the first hold-down devices 19 ' be fluid pressure type hold-down devices, at the control of the not shown control device bar of ordering, along world direction, move.
Backing roll axle box 12 as shown in Figure 2, is equipped on the second hold-down devices 20 supporting of beam 16, be arranged on beam 16 to lower face side.The second hold-down devices 20 of present embodiment is fluid pressure type hold-down devices, has bar 26, seal closure 27, the hydraulic pressure chamber 28 of hydraulic piston.This second hold-down devices 20 moves along world direction at the control of the not shown control device bar 26 of ordering, thereby presses down independently backing roll axle box 12 with central support roll shaft case 13.In addition, the second hold-down devices 20 is carried out depressed position control with sensor (not shown) combination of the stroke of test rod 26.
According to present embodiment, backing roll axle box 12 and central support roll shaft case 13 are all equipped on beam 16, but backing roll axle box 12 supports by beam 16 via the second hold-down devices 20, and central support roll shaft case 13 is supported on beam 16 rigidly.That is for the roll-force of workpiece W, the sliding stroke by beam 16 determines the depressed position in the world direction of the roller group that, roller set constructor 10 possesses.Thereby location or pressure setting that the interval of the thickness of slab of setting workpiece W arranges the bar 19b in the first hold-down devices 19 decide.In addition, in the present embodiment, the depressed position of the world direction of the thickness of slab of adjusting workpiece W regulates is only undertaken by the first hold-down devices 19 of upside.In addition, during beam 16 such as the first hold-down devices 19 of downside ' make in roller replacing etc. ' move up and down, use, when rolling by preset.
In addition, in the present embodiment, by setting the second the pressing down stroke of hold-down devices 20 by the first backing roll 5 and the second backing roll 6 with the relative altitude Y(of central branches runner 7 with reference to Fig. 5) be set as variable.By making relative altitude Y variable, can control the horizontal deflection of first intermediate roll 3 and the second intermediate calender rolls 4, so changing, the vertical deflection of workpiece roller 2 can effectively control the shape of workpiece W.For example, if the load based on the second hold-down devices 20 (stroke) strengthens, relative altitude Y diminishes, and can increase the central downforce for workpiece W.On the other hand, if the load based on the second hold-down devices 20 reduces, relative altitude Y becomes large, can reduce the central downforce of workpiece W.The adjusting of this downforce be take the downforce that puts on the first backing roll 5 and the second backing roll 6 and the downforce that puts on central branches runner 7 by not shown control device and is controlled and carry out as the mode of set ratio.As the mode of setting the hydraulic pressure of the second hold-down devices 20, there are the mode of setting above-mentioned relative altitude Y and the mode of setting the ratio of above-mentioned downforce.
In addition, when carrying out lower pressure-controlled with above-mentioned formation, particularly control as follows.
For the relative altitude Y of the first backing roll 5 and the second backing roll 6 and central branches runner 7, there is the reference position of the expectation determining from control range.The travel position of the bar 26 of first preset the second hold-down devices 20 is to be positioned at this reference position.In addition, the second hold-down devices 20 of lower side ' control similarly.
Then, for rolling condition from workpiece W set workpiece roller 2,2 ' interval and determine the travel position of the bar 19b of the first hold-down devices 19.In addition, the trip position is the value that has reflected the mechanical elastic deformation amount based on anticipation rolling load.
Then, start the rolling of workpiece W, utilize thickness gauge to measure the thickness of slab of the workpiece W after rolling, from its measurement result, try to achieve thickness deviation, if this deviation is greatly, carry out AGC(Auto Gauge Control) operation, the travel position of correction the first hold-down devices 19.
In addition, while by control mode switching being rolling load control (draught pressure control) rather than roller Separation control after rolling starts, revise the pressure setting of the first hold-down devices 19.In addition,, when carrying out tension AGC, speed AGC, do not carry out the setting change of the first hold-down devices 19.
In the shape measuring sensor that is arranged at rolling outlet side, detect when the shape defect of 1 mode of end extension, middle part extension etc. has appearred in workpiece W, in order to change the stroke target location of above-mentioned relative altitude Y, revise the second hold-down devices 20,20 ' travel position.In addition, while making control mode do not switched to rolling load and control for roller Separation control after rolling starts, also for revise the second hold-down devices 20,20 ' travel position and carry out FEEDBACK CONTROL.In addition, for the second hold-down devices 20,20 ' controlled quentity controlled variable be same amount in principle.
In addition,, when carrying out above-mentioned downforce rate control, corresponding to the shape defect of workpiece W, change downforce ratio, the pressure of change setting the second hold-down devices 20.The relation of the stroke of the shape defect degree of workpiece W and above-mentioned relative altitude Y, or the relation of the ratio of the shape defect degree of workpiece W and above-mentioned downforce is calculated and is operated by theory in advance and determines relational expression.
Revise the second hold-down devices 20,20 ' travel position time, the position of the world direction of intermediate calender rolls and workpiece roller all changes, and makes the invariant position in the world direction of workpiece roller 2 so the travel position of the first hold-down devices 19 is revised in compensation simultaneously.In addition, compensation correction factor is used the data of storing up in advance arithmetic logic at not shown control device internal memory.
Carry out as follows in the present embodiment lower pressure-controlled.
According to present embodiment described above, multistage roller group plate mill 1 is, roller set constructor 10 forms opposed to each other, described roller set constructor 10 has workpiece roller 2, be arranged at first intermediate roll 3 and second intermediate calender rolls 4 of the behind of this workpiece roller 2, be arranged at this first intermediate roll 3 behind the first backing roll 5 and be arranged at second backing roll 6 of behind of this second intermediate calender rolls 4 and the central branches runner 7 that is arranged at the behind of this first intermediate roll 3 and this second intermediate calender rolls 4.Roller set constructor 10 has: the backing roll axle box 12 of public ground axle suspension the first backing roll 5 and the second backing roll 6, axle supporting central branches runner 7 and the central support roll shaft case 13 arranging independently with backing roll axle box 12, supporting central support roll shaft case 13 and being integrated with central support roll shaft case 13 and the beam 16 that slides freely along opposed direction, backbar 16 and make beam 16 slide and the first hold-down devices 19 that central support roll shaft case 13 is pressed down along world direction, the second hold-down devices 20 that supports backing roll axle box 12 and make independently backing roll axle box 12 slide and press down along world direction with central support roll shaft case 13 with being equipped on beam 16.The multistage roller group plate mill 1 of present embodiment does not adopt in the past like that the formation that supports the first hold-down devices of built-in central branches runner special use in the backing roll axle box of first, second backing roll at axle, but makes the first hold-down devices 19 be integrated and be arranged at the beam 16 sliding freely along world direction with central support roll shaft case 13.Thus, can with bearing load, via axle, not support the form supporting central branches runner 7 in the backing roll axle box 12 of the first backing roll 5 and the second backing roll 6, central branches runner 7 can be pressed down via beam 16, can not be subject to arranging the restriction in space.Therefore, can increase central support roll shaft case 13 and the first hold-down devices 19.
Thereby, in the present embodiment, can strengthen intensity, the output loads of central branches runner 7, can strengthen the load applying separately to central branches runner 7.In addition, the first backing roll 5 and the second backing roll 6 can directly not bear the shakiness of the downforce change of central support axle box, and the change of the backing roll being caused by external interference can not become greatly, can reduce the shakiness being caused by external interference.And then, because the first hold-down devices 19 is not built in backing roll axle box 12, so can alleviate the burden that removes operation.
In addition, in the present embodiment, there is the control device that the downforce of controlling the driving of the first hold-down devices 19 and the second hold-down devices 20 and making to put on the downforce of central branches runner 7 and put on the first backing roll 5 and the second backing roll 6 is set ratio.This control device is controlled as follows: to the first backing roll 5 and the second backing roll 6, apply independently downforce with central branches runner 7, and the downforce that order puts on the first backing roll 5 and the second backing roll 6 is set ratio with respect to the downforce that puts on central branches runner 7.Thus, multistage roller group plate mill 1 can apply to the backing roll of three suitable downforce.Or, the bad stroke that presses down of determining the second hold-down devices 20 with the relation of relative altitude Y of rolled form that can be based on workpiece W.
In addition in the present embodiment, on backing roll axle box 12, be formed with in the direction of the world at the first recess 12a with the overlapping formation space, position of central support roll shaft case 13.Thus, multistage roller group plate mill 1 is, when backing roll axle box 12 and central support roll shaft case 13 are applied to downforce independently, can avoid the interference of backing roll axle box 12 and central support roll shaft case 13, and can carry out relatively moving in the direction of the world.
In addition, in the present embodiment, there is the intermediate calender rolls axle box 11 and the intermediate calender rolls shift unit that makes first intermediate roll 3 axially be shifted with 11 links of intermediate calender rolls axle box of public ground axle suspension first intermediate roll 3 and the second intermediate calender rolls 4 together with the second intermediate calender rolls 4.Thus, multistage roller group plate mill 1, by making first intermediate roll 3 and the second intermediate calender rolls 4 axially be shifted, can increase the shape control ability to workpiece W.In addition,, because first intermediate roll 3 and the second intermediate calender rolls 4 are installed on public axle box, so the mechanical realization of shift unit and operation become simply, can alleviate the burden of maintenance operation.
In addition, in the present embodiment, on backing roll axle box 12, be formed with in direction of principal axis the second recess 12b in the position formation space overlapping with intermediate calender rolls axle box 11.Thus, multistage roller group plate mill 1, when making intermediate calender rolls axle box 11 axially be shifted, can be avoided the interference of intermediate calender rolls axle box 11 and backing roll axle box 12, and can carry out relatively moving in direction of principal axis.
In addition, in the present embodiment, the first hold-down devices 19 of roller set constructor 10 is electrodynamic type hold-down devices, roller set constructor 10 ' the first hold-down devices 19 ' be fluid pressure type hold-down devices.If opposed roller set constructor 10,10 ' the first hold-down devices 19,19 ' be identical formation, not preferred for regulating downforce.Therefore, making the first hold-down devices 19 that a side roller set constructor 10 possesses is electrodynamic type, makes the first hold-down devices 19 of the opposing party's roller set constructor 10 ' possess ' be fluid pressure type, easy thereby the adjusting of downforce becomes.
Above with reference to the accompanying drawings of preferred embodiment of the present invention, but the present invention is not limited to above-mentioned embodiment.Each shape of each component parts illustrating in the above-described embodiment and combination etc. are only an example, can be without departing from the spirit and scope of the invention based on designing requirement etc. and carry out various changes.
In industry, utilize possibility.
According to multistage roller group plate mill of the present invention, can strengthen intensity, the output loads of central branches runner, can strengthen the load applying separately to central branches runner.In addition, first, second backing roll can directly not bear the shakiness of the downforce change of central support axle box, and the change of the backing roll being caused by external interference can not become greatly, can reduce the shakiness being caused by external interference.And then, because the first hold-down devices is not built in backing roll axle box, so remove operation leicht fallen D/A.
Claims (5)
1. a multistage roller group plate mill, roller set constructor forms opposed to each other, described roller set constructor has: workpiece roller, be arranged at the behind of this workpiece roller first intermediate roll and the second intermediate calender rolls, be arranged at the behind of this first intermediate roll the first backing roll, be arranged at this second intermediate calender rolls behind the second backing roll and be arranged at this first intermediate roll and the central branches runner of the behind of this second intermediate calender rolls
Described multistage roller group plate mill is characterised in that,
Above-mentioned roller set constructor has:
The backing roll axle box of above-mentioned the first backing roll of public ground axle suspension and above-mentioned the second backing roll,
Axle support above-mentioned central branches runner and the central support roll shaft case arranging independently with above-mentioned backing roll axle box,
Support above-mentioned central support roll shaft case and be integrated with above-mentioned central support roll shaft case and along opposed direction slide beam parts freely,
Support above-mentioned beam parts and make above-mentioned beam parts slide and the first hold-down devices that above-mentioned central support roll shaft case is pressed down along above-mentioned opposed direction,
Be equipped on above-mentioned beam parts and support above-mentioned backing roll axle box and with above-mentioned central support roll shaft case make independently above-mentioned backing roll axle box along above-mentioned opposed direction slide and the second hold-down devices of pressing down,
The downforce of controlling the driving of above-mentioned the first hold-down devices and above-mentioned the second hold-down devices and making to put on above-mentioned central branches runner and the downforce that puts on above-mentioned the first backing roll and above-mentioned the second backing roll are the control device of set ratio.
2. multistage roller group plate mill according to claim 1, is characterized in that,
In above-mentioned backing roll axle box, be formed with in above-mentioned opposed direction the recess in the position formation space overlapping with above-mentioned central support roll shaft case.
3. multistage roller group plate mill according to claim 1, is characterized in that,
Have the above-mentioned first intermediate roll of public ground axle suspension and above-mentioned the second intermediate calender rolls intermediate calender rolls axle box,
The intermediate calender rolls shift unit that links with above-mentioned intermediate calender rolls axle box and make above-mentioned first intermediate roll axially be shifted together with above-mentioned the second intermediate calender rolls.
4. multistage roller group plate mill according to claim 3, is characterized in that,
On above-mentioned backing roll axle box, be formed with in above-mentioned direction of principal axis second recess in the position formation space overlapping with above-mentioned intermediate calender rolls axle box.
5. according to the multistage roller group plate mill described in any one of claim 1 to 4, it is characterized in that,
Above-mentioned the first hold-down devices of one side of above-mentioned opposed roller set constructor is fluid pressure type hold-down devices, and above-mentioned the first hold-down devices of the opposing party of above-mentioned opposed roller set constructor is electrodynamic type hold-down devices.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010042433A JP5428939B2 (en) | 2010-02-26 | 2010-02-26 | Multistage cluster plate rolling machine |
| JP2010-042433 | 2010-02-26 | ||
| PCT/JP2011/053795 WO2011105354A1 (en) | 2010-02-26 | 2011-02-22 | Multistage cluster plate mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102791392A CN102791392A (en) | 2012-11-21 |
| CN102791392B true CN102791392B (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180010748.4A Expired - Fee Related CN102791392B (en) | 2010-02-26 | 2011-02-22 | Multistage cluster plate mill |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5428939B2 (en) |
| CN (1) | CN102791392B (en) |
| WO (1) | WO2011105354A1 (en) |
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| JPS606205A (en) * | 1983-06-23 | 1985-01-12 | Mitsubishi Heavy Ind Ltd | Multi-stage cluster rolling mill |
| JP4206541B2 (en) * | 1999-01-27 | 2009-01-14 | 株式会社Ｉｈｉ | Multi-stage rolling mill |
| JP2004098073A (en) * | 2002-09-05 | 2004-04-02 | Ishikawajima Harima Heavy Ind Co Ltd | Multiple rolling mill |
| JP4235943B2 (en) * | 2003-08-20 | 2009-03-11 | 株式会社Ｉｈｉ | Cluster rolling mill |
-
2010
- 2010-02-26 JP JP2010042433A patent/JP5428939B2/en not_active Expired - Fee Related
-
2011
- 2011-02-22 CN CN201180010748.4A patent/CN102791392B/en not_active Expired - Fee Related
- 2011-02-22 WO PCT/JP2011/053795 patent/WO2011105354A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1194824C (en) * | 1999-03-04 | 2005-03-30 | 郑红专 | Rolling mill with roll deflection bi-dimensionally controlled |
| CN101219436A (en) * | 2008-01-25 | 2008-07-16 | 中冶陕压重工设备有限公司 | Roll form regulating mechanism for twelve-roller controllable roll form roller mill |
| CN101342543A (en) * | 2008-08-18 | 2009-01-14 | 中冶陕压重工设备有限公司 | Fourteen-roller strip mill |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011105354A1 (en) | 2011-09-01 |
| JP2011177729A (en) | 2011-09-15 |
| CN102791392A (en) | 2012-11-21 |
| JP5428939B2 (en) | 2014-02-26 |
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