CN104148604B - Column integration pony roll spacing dynamic draught withdrawal straightening machine altogether - Google Patents
Column integration pony roll spacing dynamic draught withdrawal straightening machine altogether Download PDFInfo
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- CN104148604B CN104148604B CN201410415710.0A CN201410415710A CN104148604B CN 104148604 B CN104148604 B CN 104148604B CN 201410415710 A CN201410415710 A CN 201410415710A CN 104148604 B CN104148604 B CN 104148604B
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Abstract
The open a kind of integration of the column altogether pony roll spacing dynamic draught withdrawal straightening machine of the present invention, the common pillar construction withdrawal straightening machine of to be roller spacing minimum of a value be 550mm, be applicable to elementary arc radius R=(6 ~ 12m), roller logarithm for (2 ~ 10) are to conticaster, the center of every a pair up-down rollers is arranged on aligning normal to a curve; Often adjacent two rollers share one group of support post, and each top roll moves up and down along the slideway of column both sides respectively; The hydraulic cylinder of inbuilt displacement sensor can accurately control top roll drafts and dynamic conditioning roll gap; Often the hydraulic cylinder bearing of adjacent two hydraulic cylinders also shares one group of support post, and last two pairs of up-down rollers are throwing, slighter compress roller, are also rollers of moulding adobe blocks.Compact conformation, roller spacing is little, can arrange more depress roller in shorter liquid phase region, meets multipoint pressing requirement in technique, withdrawal straightening machine is transitioned into the process of horizontal segment from segmental arc realizes dynamic draught function through aligning, and completes and send dummy bar, deingot and throwing to align task.
Description
Technical field
The present invention relates to common column integration pony roll spacing dynamic draught withdrawal straightening machine, be specially billet caster band multiple spot dynamic draught withdrawal straightening machine, belong to metallurgy industry technical field of metallurgical machinery.
Background technology
In strand continuous casting process, generally can there is the defect such as center segregation and center porosity in strand inside, by the impact of composition and casting blank solidification characteristic, center segregation and the center porosity defect of carbon equivalent high steel grade strand are even more serious, dynamic draught technology controls strand interior solid degree and homogenieity by depressing the solidification shrinkage compensating strand center online, thus plays the object promoting Inner Quality of Billet, improve continuous casting production efficiency.By on-line tracing casting blank solidification process, be in time then called dynamic draught in correct position enforcement pressure or dynamic conditioning roll gap.In recent years, what require slab quality along with user improves constantly, and has dynamic soft-reduction, weighs the favor that the withdrawal straightening machine of press function is more and more subject to user.
Billet caster with dynamic draught because of casting machine radius little, casting blank section is little, and the liquid phase region length that can be used for dynamic draught is short, must arrange more depress roller in limited scope, carries out pressure make it that deformation occur to strand; Realize dynamic draught, in time must implement pressure or dynamic conditioning roll gap at correct position according to tracking results, therefore each top roll must can control separately; Because strand deformation will occur, to improve Inner Quality of Billet, the line of centres of every a pair top roll and lower roll must be arranged in be aligned on normal to a curve, that is the vertical center line of the vertical center line of hydraulic cylinder and rack slide all overlaps with arc strand normal, and can adapt to different casting blank section.
Existing small billet withdrawal straightening machine is generally five roller progressive straightening withdrawal straightening machines (as shown in Figure 1) of integral-rack, frame has 5 rollers, wherein only have two top rolls, top roll pivoted arm one end is hinged on frame bearing by rotating shaft, the other end and hydraulic cylinder hinged, under Driven by Hydraulic Cylinder, top roll circles around the shaft.Its weak point is: (1) for different casting blank sections, and the line of centres of up-down rollers can not be all vertical with aligning curve, can not be applicable to slighter compress operating mode; (2) pivoted arm structure takes up room greatly, can only arrange a top roll, horizontal segment is arranged another top roll, cannot meet the requirement that multiple spot is depressed in good time in limited aligning district;
Existing bloom withdrawal straightening machine is generally the continuous progressive straightening withdrawal straightening stands (as shown in Figure 2) of multi-frame multiple spot, often organizing withdrawal straightening machine is independent rack, lower roll in frame is free roll, and top roll with hydraulic cylinder and transmission device, can realize pressure and the straightening function of strand.But the weak point of this kind of type is: independent rack takes up room comparatively large, and between each top roll, roller spacing is comparatively large, the requirement of the small billet withdrawal straightening machine pony roll spacing of band dynamic draught can not be met equally.
Utility model patent " a kind of continuous small-billet casting slighter compress Blank drawing machine " device described in (application number: CN201320290601.1) comprises 6 throwing unit, mould adobe blocks unit and two free rolls, and its weak point is without moulding adobe blocks device in throwing unit; Utility model patent " a kind of continuous casting billet withdrawal straightening machine device with the slighter compress function " device described in (application number: CN02289305.9) is that small diameter closing arrangement roller is fixed on same framework, its weak point can not realize controlling each top roll separately, and the center of up-down rollers can not all the time on aligning normal to a curve; New patent the withdrawal straightening stands of the continuous progressive straightening technology of frame multiple spot " have etc. " (application number: CN200920030967.9) is that each group smoothing roll is fixed in a frame, 2 columns are had between every two groups of smoothing rolls, its weak point is that column takes up room comparatively greatly, cannot meet the requirement of the small billet withdrawal straightening machine pony roll spacing of band dynamic draught; There is the requirement problem of the small billet withdrawal straightening machine pony roll spacing that cannot meet band dynamic draught equally in patent of invention " dual 5-roller frames progressive straightening withdrawal straightening machine " (application number: CN01112954.9).
Summary of the invention
The object of the invention is for not enough described in background technology, design a kind of common column integration pony roll spacing multiple spot dynamic draught withdrawal straightening machine being exclusively used in billet caster, be applicable to elementary arc radius R=(6 ~ 12m), roller logarithm is (2 ~ 10) right conticaster, roller spacing minimum of a value can reach 550mm; The center of every a pair up-down rollers is arranged on aligning normal to a curve; Often adjacent two rollers share a support post, and the slideway respectively along column both sides moves up and down; The hydraulic cylinder of inbuilt displacement sensor accurately can control the drafts of top roll and dynamic conditioning roll gap; Often the hydraulic cylinder bearing of adjacent two hydraulic cylinders is also a shared support post, and by bolt-connection together, rear two pairs of up-down rollers are throwing, slighter compress pair roller to two hydraulic cylinder bearings of supporting cylinder, are also pair rollers of moulding adobe blocks.Compact conformation, roller spacing is little, more depress roller is arranged in shorter liquid phase region, meet the parameter request of multipoint pressing in technique, greatly promote Inner Quality of Billet and continuous casting production efficiency, this withdrawal straightening machine can realize dynamic draught function from segmental arc through aligning to be transitioned in the process of horizontal segment, reaches the object promoting Inner Quality of Billet, improve continuous casting production efficiency; Task of sending dummy bar, deingot and throwing to align can be completed again simultaneously.
Technical scheme of the present invention is: altogether column integration pony roll spacing dynamic draught withdrawal straightening machine is roller spacing minimum of a value is the common pillar construction withdrawal straightening machine of 550mm; Comprise upper and lower pair roller, the hydraulic cylinder of inbuilt displacement sensor, column, base, slide, anti-twisting equipment, cooling device and drive unit, described column has totally 14, two groups, front and back, and two groups, front and back column is supported on the base of front and back accordingly; It is six right that described upper and lower pair roller has, and wherein six lower rolls are the free rolls be fixed on the installed surface of base band angle, have four to be live-roller in six top rolls, and another two is free roll; The center of every a pair up-down rollers is arranged on aligning normal to a curve; Corresponding with described six top rolls has six hydraulic cylinders, and the slide of described hydraulic cylinder and fixing top roll is hinged, all with displacement transducer in hydraulic cylinder; It is characterized in that:
Two groups, described front and back column respectively has seven, enter that billet is the first root post, to go out billet be the 7th root post, wherein the first, the 7th root post only has slideway in inner side, slideway is all had to the both sides of six roots of sensation column from second, form two pairs of adjacent rollers and share a support post, each top roll of described Driven by Hydraulic Cylinder moves up and down along the slideway on two heel posts respectively;
Have wedge or bolt to be fixed together between two hydraulic cylinder bearings of described each hydraulic cylinder of support and column, often the hydraulic cylinder bearing of adjacent two hydraulic cylinders also shares a support post;
The opening degree of described 5th, the 6th pair of up-down rollers is all greater than the opening degree of front four pairs of up-down rollers;
Described 5th, the 6th pair of up-down rollers is throwing, slighter compress pair roller, is also pair roller of moulding adobe blocks.
Preferably, described pair roller minimum number is two right, can reach at most ten right; When pair roller quantity is two pairs, two top rolls are live-rollers; When pair roller quantity is ten pairs, arbitrary disposition live-roller quantity can be needed according to technique in ten top rolls, the first, the tenth root post only has slideway in inner side, all slideway is had from the both sides of the second to the 9th root post, form two pairs of adjacent rollers and share a support post, each top roll of described Driven by Hydraulic Cylinder moves up and down along the slideway on two heel posts respectively.
The invention has the beneficial effects as follows:
(1) compact conformation, roller spacing minimum of a value can reach 550mm, can arrange more depress roller, meet the parameter request of multipoint pressing in technique in shorter liquid phase region, greatly promotes Inner Quality of Billet and continuous casting production efficiency;
(2) each top roll can be controlled separately, in time implement pressure or dynamic conditioning roll gap at correct position, really realize dynamic draught;
(3) center of every a pair up-down rollers is arranged on aligning normal to a curve, and during pressure, strand is all the time by normal pressure, not by tangential force, can adapt to multiple section and guarantee slab quality;
(4) according to calculating the quantity increasing transmission device, can need arbitrary disposition transmission device quantity according to technique, there is enough slab drawing powers, various drafts and various casting blank section can be adapted to;
(5) simultaneously satisfiedly on a set of equipment can send dummy bar, throwing aligning, dynamic draught and function of moulding adobe blocks, the mechanism that moulds adobe blocks is set no longer in addition, reduce cost;
(6) often organize top roll to extract out separately together with hydraulic cylinder, hydraulic cylinder bearing, transmission device, slide, be easy to dismounting, the repair time is short, and spare parts consumption amount is few.
Accompanying drawing explanation
Fig. 1 is five roller progressive straightening withdrawal straightening machine schematic diagrames of existing integral-rack;
Fig. 2 is existing bloom multi-frame multiple spot continuous progressive straightening withdrawal straightening stands schematic diagram;
Fig. 3 is the present invention's column integration pony roll spacing dynamic draught withdrawal straightening machine arrangement schematic diagram altogether;
Fig. 4 is the present invention's column integration pony roll spacing dynamic draught withdrawal straightening machine structural representation altogether;
Fig. 5 is single group column left view;
Fig. 6 be in Fig. 5 H-H to sectional view;
Fig. 7 is D direction view in Fig. 4;
Fig. 8 is E-E revolved sectional view in Fig. 7;
Fig. 9 be hydraulic cylinder bearing and column with bolts time D direction view;
Figure 10 is B-B sectional view in Fig. 9;
Figure 11 is C-C direction view in Figure 10.
Mark in figure: 1-slideway, 2-top roll, 3-lower roll, 4-2# column, 5-base, 6-protective cover, 7-decelerator, 8-motor, 9-slide, 10-3# hydraulic cylinder left support abutment, 11-3# hydraulic cylinder right support abutment, 12-short stroke hydraulic cylinder, 13-Long travel hydraulic cylinder, 14-displacement transducer, 17-backwater cavity, 18-cooling water connector, 19-water chamber; 20-cooling water dividing plate, 21-2# hydraulic cylinder, 22-1# hydraulic cylinder right support abutment, 23-2# hydraulic cylinder left support abutment, 24-2# hydraulic cylinder right support abutment, 25-3# hydraulic cylinder left support abutment, 26-wedge, 27-attachment bolt, 28-pin, 29-3# column, 31-connecting bolt, 32-anti-rotary seat, 33-cover plate, 34-hex screw.
Detailed description of the invention
Be described in further detail below in conjunction with the enforcement of accompanying drawing to technical scheme:
As shown in Figure 3, the present invention is column integration pony roll spacing dynamic draught withdrawal straightening machine altogether, in work, strand presses direction of advance respectively through basic segmental arc, aligning curved section and horizontal segment, elementary arc radius is 6 ~ 12m, roller logarithm is minimum is 2 right, it is 10 right to reach at most, each roller diameter can be 280 ~ 500mm, in the embodiment of the present invention, there are 6 pairs of up-down rollers, wherein 6 lower rolls are free rolls, in 6 top rolls, 1st, 2nd, 4th, 6(totally 4) top roll is live-roller, 3rd and the 5th top roll is free roll, owing to adopting common pillar construction, adjacent roller between minimum spacing can reach 550mm, this close-coupled in shorter liquid phase region, arrange more depress roller structure, the parameter request of multipoint pressing in technique can be met to greatest extent, greatly promote Inner Quality of Billet and continuous casting production efficiency.
As shown in accompanying drawing 4 ~ 8, the present invention's common column integration pony roll spacing dynamic draught withdrawal straightening machine overlaps decelerators 7 and motor 8, six slides 9, six left hydraulic cylinder bearings 10, six right hydraulic cylinder bearings, 11, four short stroke hydraulic cylinders, 12, two Long travel hydraulic cylinders 13 and six displacement transducers 14 be built on hydraulic cylinder 13 by six groups of slideways, 1, six top rolls, 2, six lower rolls, 3, seven columns, 4, base, 5, six groups of protective covers 6, four and forms.Wherein six lower rolls 3 are free roll, are fixed on base 5 with on the installed surface of angle, and in six top rolls 2, four is live-roller (1,2,4,6 roller), and two is free roll (3,5 roller).Often organize together with left hydraulic cylinder bearing 10 is bolted with right hydraulic cylinder bearing 11, for installing hydraulic cylinder 12 and 13, the earrings of the piston rod head of hydraulic cylinder 12 and 13 and the slide 9 of fixing top roll 2 hinged, each Driven by Hydraulic Cylinder top roll.
Accompanying drawing 5 is single group gantry rack-like column schematic diagrames, Fig. 6 be Fig. 5 along H-H sectional view, can find out from Fig. 5,6, slideway 1 is positioned at both sides, column top.Every root post also have backwater cavity 17, cooling water connector 18, water chamber 19 and cooling water dividing plate 20.
As shown in Figure 4, column I ~ VII is that entirety is connected on base 5, the right side of column I and the left side of column II form Article 1 slideway, and 1# top roll and coupled slide, decelerator, motor move up and down at the downward Article 1 slideway of the driving of 1# hydraulic cylinder.1# hydraulic cylinder left support abutment passes through together with bolt-connection with hydraulic cylinder right support abutment, and for installing 1# hydraulic cylinder, 1# hydraulic cylinder left support abutment is fixed on the top of column I by wedge 26, and 1# hydraulic oil right support abutment is fixed on the top of column II by wedge attachment bolt 26.
The right side of column II and the left side of column III form Article 2 slideway, and 2# top roll and coupled slide, decelerator, motor move up and down at the downward Article 2 slideway of the driving of 2# hydraulic cylinder.2# hydraulic cylinder left support abutment passes through together with bolt-connection with hydraulic cylinder right support abutment, and for installing 2# hydraulic cylinder, 2# hydraulic cylinder left support abutment is fixed on the top of column II by wedge 26, and 2# hydraulic cylinder right support abutment is fixed on the top of column III by wedge 26.
By that analogy, as shown in Figure 4, form Article 1 slideway on the right side of column I and on the left of column II to move up and down for 1# top roll, form Article 2 slideway on the right side of column II and on the left of column III to move up and down for 2# top roll, form Article 3 slideway on the right side of column III and on the left of IV column to move up and down for 3# top roll, form Article 4 slideway on the right side of column IV and on the left of column V to move up and down for 4# top roll, form Article 5 slideway on the right side of column V and on the left of column VI to move up and down for 5# top roll, form Article 6 slideway on the right side of column VI and on the left of column VII and move up and down for 6# top roll.
As shown in Figure 4,1# hydraulic cylinder left support abutment is fixed on the top of column I, 1# hydraulic cylinder right support abutment and 2# hydraulic cylinder left support abutment are fixed on the top of column II, 2# hydraulic cylinder right support abutment and 3# hydraulic cylinder left support abutment are fixed on the top of column III, 3# hydraulic cylinder right support abutment and 4# hydraulic cylinder left support abutment are fixed on the top of column IV, 4# hydraulic cylinder right support abutment and 5# hydraulic cylinder left support abutment are fixed on the top of column V, 5# hydraulic cylinder right support abutment and 6# hydraulic cylinder left support abutment are fixed on the top of column VI, and 6# hydraulic cylinder right support abutment is fixed on the top of column VII.
Hydraulic cylinder 12,13 are all built-in with displacement transducer 14, accurately can control the drafts dynamic conditioning roll gap of top roll.The stroke of hydraulic cylinder 13 is greater than hydraulic cylinder 12, and dummy bar can be passed through smoothly.Protective cover 6 is installed on the inner side of column 4, carries out heat insulation protection to peripheral equipment, and protective cover can adopt water-cooling cover or stay-warm case.
As shown in accompanying drawing 7 ~ 8,2# hydraulic cylinder left support abutment 23 and 2# hydraulic cylinder right support abutment 24 are fixed together by attachment bolt 27, for installing 2# hydraulic cylinder 21,1# hydraulic cylinder right support abutment 22 and 2# hydraulic cylinder left support abutment 23 are squeezed into pin 28 by wedge 26 and are separately fixed at column II top, 2# hydraulic cylinder right support abutment 24 and 3# hydraulic cylinder left support abutment 25 are also squeeze into by wedge 26 top that pin 28 is separately fixed at column III, by that analogy on the mounting means of remaining fluid cylinder pressure bearing.
As shown in accompanying drawing 9 ~ 11, be D direction view during hydraulic cylinder bearing and column mode with bolts, and represent that the B-B of connecting bolt is to sectional view and C-C to sectional view.Because column top installing space is very little, 1# hydraulic cylinder right support abutment 22 and 2# hydraulic cylinder left support abutment 23 can only adopt concave-convex, protruding in the middle part of 1# hydraulic cylinder right support abutment 22, recessed in the middle part of 2# hydraulic cylinder left support abutment 23.Because the connecting bolt of 1# hydraulic cylinder right support abutment 22 and 2# hydraulic cylinder right support abutment 24 is in inner side, spanner space is inadequate, dismounting is very difficult, therefore welded anti-rotary seat 32 at the lower surface of column top board, one group of connecting bolt 31 inside column penetrates from down, the outer-hexagonal of connecting bolt 31 end is just in time stuck in interior six sides of anti-rotary seat 32, to reach the object of anti-rotation.When dismantling, for preventing connecting bolt 31 from dropping out, therefore devise cover plate 33 on anti-rotary seat 32, and fix with soket head cap screw 34.
These are only embodiments of the invention, but be not limited to the present invention, all any amendments, equivalent replacement or improvement etc. made within the present invention's spirit and principle, all should be included within right of the present invention.
Claims (2)
1. altogether column integration pony roll spacing dynamic draught withdrawal straightening machine is roller spacing minimum of a value is the common pillar construction withdrawal straightening machine of 550mm; Comprise upper and lower pair roller, the hydraulic cylinder of inbuilt displacement sensor, column, base, slide, anti-twisting equipment, cooling device and drive unit, described column has totally 14, two groups, front and back, and two groups, front and back column is supported on the base of front and back accordingly; It is six right that described upper and lower pair roller has, and wherein six lower rolls are the free rolls be fixed on the installed surface of base band angle, have four to be live-roller in six top rolls, and another two is free roll; The center of every a pair up-down rollers is arranged on aligning normal to a curve; Corresponding with described six top rolls has six hydraulic cylinders, and the slide of described hydraulic cylinder and fixing top roll is hinged, all with displacement transducer in hydraulic cylinder; It is characterized in that:
Two groups, described front and back column respectively has seven, enter that billet is the first root post, to go out billet be the 7th root post, wherein the first, the 7th root post only has slideway in inner side, slideway is all had to the both sides of six roots of sensation column from second, form two pairs of adjacent rollers and share a support post, each top roll of described Driven by Hydraulic Cylinder moves up and down along the slideway on two heel posts respectively;
Have wedge or bolt to be fixed together between two hydraulic cylinder bearings of described each hydraulic cylinder of support and column, often the hydraulic cylinder bearing of adjacent two hydraulic cylinders also shares a support post;
Five, the opening degree of the 6th pair of up-down rollers is all greater than the opening degree of front four pairs of up-down rollers;
Five, the 6th pair of up-down rollers is throwing, slighter compress pair roller, is also pair roller of moulding adobe blocks.
2. the integration of column altogether pony roll spacing dynamic draught withdrawal straightening machine as claimed in claim 1, is characterized in that: described pair roller minimum number be two to, reach ten right at most; When pair roller quantity is two pairs, two top rolls are live-rollers; When pair roller quantity is ten pairs, arbitrary disposition live-roller quantity can be needed according to technique in ten top rolls, the first, the tenth root post only has slideway in inner side, all slideway is had from the both sides of the second to the 9th root post, form two pairs of adjacent rollers and share a support post, each top roll of described Driven by Hydraulic Cylinder moves up and down along the slideway on two heel posts respectively.
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| CN201410415710.0A CN104148604B (en) | 2014-08-22 | 2014-08-22 | Column integration pony roll spacing dynamic draught withdrawal straightening machine altogether |
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| CN201410415710.0A CN104148604B (en) | 2014-08-22 | 2014-08-22 | Column integration pony roll spacing dynamic draught withdrawal straightening machine altogether |
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| CN104148604B true CN104148604B (en) | 2016-04-06 |
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| CN105364041B (en) * | 2015-11-10 | 2018-06-08 | 中冶京诚工程技术有限公司 | A kind of continuous straightening device of solid matter double roller and pulling-straightening equipment |
| CN105344957B (en) * | 2015-11-10 | 2018-02-09 | 中冶京诚工程技术有限公司 | A kind of fan-shaped segment type straightening device and pulling-straightening equipment |
| CN106513610A (en) * | 2016-11-18 | 2017-03-22 | 上海耀秦冶金设备技术有限公司 | Centralized-driven pulling-straightening device with closely-arranged rollers and continuous casting machine adopting same |
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| CN108097903A (en) * | 2018-02-22 | 2018-06-01 | 江阴兴澄特种钢铁有限公司 | A kind of wedge-shaped connection strap for connecting adjacent withdrawal straightening machine |
| CN109226707A (en) * | 2018-11-16 | 2019-01-18 | 大连华锐重工集团股份有限公司 | A kind of fan-shaped segmentation of bloom |
| CN109482830A (en) * | 2018-12-13 | 2019-03-19 | 中冶南方连铸技术工程有限责任公司 | Memorial archway formula withdrawal straightening machine and the billet caster depressed using it |
| CN113118397B (en) * | 2021-03-15 | 2023-01-31 | 上海二十冶建设有限公司 | Integral base of vertical continuous casting machine light pressure module and adjusting method thereof |
| CN113128029A (en) * | 2021-03-26 | 2021-07-16 | 麦格瑞（北京）智能科技有限公司 | Method and device for improving internal quality of large-section round billet |
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