CN203778497U - Rough rolling vertical roller gap calibration device for hot continuous rolling mill - Google Patents

Rough rolling vertical roller gap calibration device for hot continuous rolling mill Download PDF

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Publication number
CN203778497U
CN203778497U CN201320682543.7U CN201320682543U CN203778497U CN 203778497 U CN203778497 U CN 203778497U CN 201320682543 U CN201320682543 U CN 201320682543U CN 203778497 U CN203778497 U CN 203778497U
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CN
China
Prior art keywords
roll
active
transmission
edger roll
bearing seat
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CN201320682543.7U
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Chinese (zh)
Inventor
张先念
幸利军
刘苗
吴真权
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宝山钢铁股份有限公司
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Priority to CN201320682543.7U priority Critical patent/CN203778497U/en
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Abstract

Disclosed is a rough rolling vertical roller gap calibration device for a hot continuous rolling mill. The rough rolling vertical roller gap calibration device for the hot continuous rolling mill is characterized in that a drive side vertical roller bearing pedestal (11) is provided with a drive side vertical roller center line (1) which is perpendicular to an inlet frame cross beam (9) through the center of the circle of a vertical roller, a working side vertical roller bearing pedestal (16) is provided with a working side vertical roller center line (7) which is perpendicular to the inlet frame cross beam (9) through the center of the circle of the vertical roller, and a vertical roller frame nose bridge (13) is provided with a rolling center line (4). According to the rough rolling vertical roller gap calibration device for the hot continuous rolling mill, the vertical roller gap calibrating efficiency can be greatly improved, the manual labor intensity is lightened, and the safety risks are lowered. The phenomenon of width model coefficient self-learning abnormity caused by inaccurate vertical roller gap calibration is avoided, and the width control precision of the hot rolling mill in slab production is improved.

Description

A kind of continuous hot-rolling mill roughing vertical roll roll gap calibration device

Technical field

The utility model relates to a kind of continuous hot-rolling mill measurement mechanism, particularly, the utility model relates to a kind of continuous hot-rolling mill roughing vertical roll roll gap calibration device, and described continuous hot-rolling mill roughing vertical roll roll gap calibration device can carry out the demarcation to hot strip continuous-rolling machine roughing vertical roll opening degree, alignment degree.

Background technology

In heat, connect machine, need to control strip width, the object that strip width is controlled is exactly to guarantee that the width accuracy of the finished strip of finish rolling outlet reaches user's requirement, and reduces as much as possible width difference and width fluctuation with steel total length.

Therefore due in continuous hot-rolling mill, only have the edger roll of roughing mill just to there is the function that width is depressed, once after being with steel to leave roughing mill to enter finishing mill, just cannot carry out the control of active with the width of steel.Therefore the control of, strip width being carried out is mainly in roughing region.Wherein, the accuracy of edger roll roll gap is larger on width accuracy impact.Edger roll roll gap calibration is inaccurate not only can cause width difference larger, also can control Model Self-Learning to whole width simultaneously and produce very large minor face impact, for example, after causing thus new edger roll to be changed, width control accuracy declines greatly, need again the Model Self-Learning through after a while, just can return to stable state of a control.So the accuracy of roughing vertical roll roll gap is controlled particularly important to width accuracy.

Roughing vertical roll roll gap calibration adopts the survey tool of general tape measure, ruler at present, directly measures vertical rolls interplanar distance and both sides roll gap deviation, will in measurement result input control system, demarcate.

Yet the weak point of above-mentioned existing apparatus is:

1, owing to being subject to the restriction of field condition, insitu moisture fog is large, dim light, and certainty of measurement can not be guaranteed;

2, edger roll roll surface is arc surface, utilizes tape measure and ruler to be difficult to find the parallel datum level of roll surface, and measure error is larger;

3, because survey crew need to enter in vertical miller, and need duplicate measurements checking, pass in and out vertical miller all needs to list with delisted at every turn, and operating efficiency is low;

4, measurement space is narrow and small, is iron scale trench below edger roll equipment, has very large potential safety hazard in manual measurement process.

Through retrieving: although there is similar technical scheme to apply for a patent,, for example, what patent CN201110274492.X described is that measuring roller kerf spacing and reference position compare, and by roll gap adjustment, is that precision is controlled in scope, need to repeatedly survey roll gap spacing; What on the other hand, patent CN200920288404.X, CN200720016470.2, CN201220528345.0, CN200920288404.X, CN200720016470.2, CN201120372130.X described is all to utilize the combination metering devices such as main scale, measuring stick, slide sign chi frame to measure the method for roll gap.

In sum, described patent all utilizes the combination metering devices such as main scale, measuring stick, slide sign chi frame to survey both sides roll gap spacing, all need to enter and roll built in measurement, or measurement environment is poor, operate dangerous, inconvenience.

Utility model content

For overcoming described problem, the utility model provides a kind of continuous hot-rolling mill roughing vertical roll roll gap calibration device, main purpose of the present utility model is exactly at the scene under severe, the special operation condition condition of complex device structure and environment, easily and accurately the opening degree of disposable demarcation edger roll, alignment degree.Improve stated accuracy, solve the shortcoming that general tape measure, ruler cannot accurate calibrations, improve strip width control accuracy and plate shape stability and operating efficiency.

According to the utility model, do not need to measure edger roll roll gap actual value, but by measuring the both sides spacing of vertical roll bearing seat and reference position, by converting, directly draw the actual gap values between rollers in both sides, disposable edger roll opening degree and the alignment degree of carrying out demarcated, and do not need repeatedly to survey roll gap spacing.And, need not utilize the combination metering devices such as main scale, measuring stick, slide sign chi frame to survey both sides roll gap spacing, and not need in milling train, measurement environment is good, easy-to-operate.

For achieving the above object, technical solution of the present utility model is as follows:

A kind of continuous hot-rolling mill roughing vertical roll roll gap calibration device, comprise the edger roll entrance cruciform bracing 9 and the edger roll outlet cruciform bracing 12 that be arranged in parallel, be arranged at the active side vertical roll bearing seat 11 of the transmission side vertical roll bearing seat 16 between described edger roll entrance cruciform bracing 9 and edger roll outlet cruciform bracing 12, be arranged at mid point between the active side vertical roll bearing seat 11 of described transmission side vertical roll bearing seat 16, connect the edger roll framework bridge of the nose 13 of described entrance cruciform bracing 9 and edger roll outlet cruciform bracing 12, it is characterized in that

On described transmission side vertical roll bearing seat 11, be provided with by the edger roll center of circle, perpendicular to the transmission side edger roll center line 1 of described entrance cruciform bracing 9, on described active side vertical roll bearing seat 16, be provided with by the edger roll center of circle, perpendicular to the active side edger roll center line 7 of described entrance cruciform bracing 9, on the described edger roll framework bridge of the nose 13, be provided with rolling centerline 4;

The intersection of described transmission side vertical roll bearing seat 16 edges and described transmission side edger roll center line 1 is provided with transmission side and measures plate 2, the intersection of the described edger roll framework bridge of the nose and described edger roll entrance cruciform bracing is provided with center and measures plate 5, and the intersection of described active side vertical roll bearing seat 11 edges and described active side edger roll center line 7 is provided with active side and measures plate 8;

The transmission side that described rolling centerline 4 two sides are provided for measuring bearing block and crossbeam reference position is measured plate 2, center and is measured transmission side laser range finder 3 and the active side laser range finder 6 that plate 5, active side are measured the spacing of plate 8; Described transmission side laser range finder and active side laser range finder 6 electricly connect with roughing Basic automation control system CPU15.

According to the utility model, the transmission side of transmission side laser range finder 3 and active side laser range finder 6 measurement bearing blocks and crossbeam reference position is measured the spacing of plate 2, center measurement plate 5, active side measurement plate 8, the data that transmission side laser range finder 3 and active side laser range finder 6 are measured upload to roughing Basic automation control system CPU15 automatically, roughing Basic automation control system CPU15 converses both sides roll gap default value, and carries out vertical rolls seam calibration process.Thus, the disposable demarcation that completes edger roll opening degree and alignment degree.

According to a kind of continuous hot-rolling mill roughing vertical roll roll gap calibration device of the present utility model, it is characterized in that,

Each vertical roll bearing seat is all installed two blocks of central line measurement plates, is arranged symmetrically with.

According to a kind of continuous hot-rolling mill roughing vertical roll roll gap calibration device of the present utility model, it is characterized in that,

Described vertical roll bearing seat is turnover use, rotatable 180 ° of installations.

According to such scheme, be mainly that vertical roll bearing seat is that turnover is used, and rotatable 180 ° of installations in installation process, convenient operation personnel stand on edger roll entrance gap bridge in actual measurement process, do not need on outlet cruciform bracing.

According to a kind of continuous hot-rolling mill roughing vertical roll roll gap calibration device of the present utility model, it is characterized in that,

Transmission side laser range finder 3, active side laser range finder 5 measurement data upload to roughing basic automatization CPU15 automatically by communication cable 14.

According to a kind of continuous hot-rolling mill roughing vertical roll roll gap calibration device of the present utility model, concrete scaling method comprises the following steps:

Set calibration position: roughing basic automation systems CPU15 accepts to demarcate gap values between rollers L0, and edger roll opening degree is got to the setting value L0 of roll gap calibration state automatically;

Measure both sides spacing: transmission side laser range finder 3, active side laser range finder 5 are measured respectively the spacing that transmission side vertical roll bearing seat center line, active side vertical roll bearing seat center line and transmission side are measured plate 2, center measurement plate 5, active side measurement plate 8, Lds and Los, as shown in Figure 2;

Upload measurement data: transmission side laser range finder, active side 5 measurement data upload to roughing basic automatization CPU15 automatically by communication cable 14;

System-computed edger roll both sides gap values between rollers: roughing basic automatization CPU15, according to vertical rolls footpath Dds and Dos, utilizes reduction formula to calculate the edge-on roller of actual transmission and active side edger roll gap values between rollers, Sds and Sos, as shown in Figure 2, concrete formula is as follows:

S ds=L ds+h-D ds/2

S os=L os+h-D os/2

Wherein h is for measuring the thickness of plate

Carry out roll gap calibration: roughing basic automatization CPU15 carries out edger roll roll gap calibration process automatically;

Roll gap alignment degree is confirmed: after edger roll roll gap calibration result, roughing basic automatization CPU15 accepts to demarcate gap values between rollers L0 again, again according to step (b), measures Lds and Los;

Alignment degree and the contrast of opening degree deviation: calculate edger roll alignment degree Δ L and opening degree deviation delta S; Computing formula is as follows:

ΔL=|L ds-L os|

ΔS=|L ds+L os+2h-(D ds+D os)/2-L 0|;

Accuracy judgement: if alignment degree Δ L and opening degree Δ S deviation are in stated accuracy control range, complete roll gap calibration; If outside accuracy rating, repeat step (a)-(g), until deviate is in critical field.

Accompanying drawing explanation

Fig. 1 is a kind of continuous hot-rolling mill roughing vertical roll roll gap calibration apparatus structure schematic diagram of the present utility model.

Fig. 2 is the operation values schematic diagram of a kind of continuous hot-rolling mill roughing vertical roll roll gap calibration device of the present utility model

In figure, 1 is vertical roll bearing seat center line, 2 is transmission side edger roll measurement plate, 3 is transmission side laser range finder, 4 is rolling centerline, 5 is rolling centerline measurement plate, 6 is active side laser range finder, 7 is active side edger roll center line, 8 is active side edger roll measurement plate, 9 is edger roll entrance cruciform bracing, 10 is active side edger roll, 11 is active side vertical roll bearing seat, 12 is edger roll outlet cruciform bracing, 13 is the edger roll framework bridge of the nose, 14 is communication cable, 15 is roughing Basic automation control system CPU, 16 is transmission side vertical roll bearing seat, 17 is transmission side edger roll.

The specific embodiment

Embodiment

A kind of continuous hot-rolling mill roughing vertical roll roll gap calibration device, comprise the edger roll entrance cruciform bracing 9 and the edger roll outlet cruciform bracing 12 that be arranged in parallel, be arranged at the active side vertical roll bearing seat 11 of the transmission side vertical roll bearing seat 16 between described edger roll entrance cruciform bracing 9 and edger roll outlet cruciform bracing 12, be arranged at mid point between the active side vertical roll bearing seat 11 of described transmission side vertical roll bearing seat 16, connect the edger roll framework bridge of the nose 13 of described entrance cruciform bracing 9 and edger roll outlet cruciform bracing 12, it is characterized in that

On described transmission side vertical roll bearing seat 11, be provided with by the edger roll center of circle, perpendicular to the transmission side edger roll center line 1 of described entrance cruciform bracing 9, on described active side vertical roll bearing seat 16, be provided with by the edger roll center of circle, perpendicular to the active side edger roll center line 7 of described entrance cruciform bracing 9, on the described edger roll framework bridge of the nose 13, be provided with rolling centerline 4;

The intersection of described transmission side vertical roll bearing seat 16 edges and described transmission side edger roll center line 1 is provided with transmission side and measures plate 2, the intersection of the described edger roll framework bridge of the nose and described edger roll entrance cruciform bracing is provided with center and measures plate 5, and the intersection of described active side vertical roll bearing seat 11 edges and described active side edger roll center line 7 is provided with active side and measures plate 8;

The transmission side that described rolling centerline 4 two sides are provided for measuring bearing block and crossbeam reference position is measured plate 2, center and is measured transmission side laser range finder 3 and the active side laser range finder 6 that plate 5, active side are measured the spacing of plate 8; Described transmission side laser range finder and active side laser range finder 6 electricly connect with roughing Basic automation control system CPU15.

According to the utility model, can condition at the scene under opening degree, the alignment degree of disposable demarcation edger roll easily and accurately.Avoid being subject to by the general tape measure of current use, ruler the impact of device structure and complex environment, cannot fix really and the assurance of precision by half-mark.Solve general tape measure, ruler and cannot accomplish half-mark shortcoming accurately surely.Guarantee edger roll opening degree, alignment degree precision and computer setting uniformity, thereby improved effective control method that hot-rolling mill is produced the width control accuracy of slab and reduced width mass loss.Greatly eliminate the major safety risks that exist in manual measurement process, also improved demarcation speed.Affiliated hot-strip production control field.

Adopt said method of the present utility model, can condition at the scene under opening degree, the alignment degree of disposable demarcation edger roll easily and accurately.Avoid being subject to by the general tape measure of current use, ruler the impact of device structure and complex environment, cannot demarcate accurately and the assurance of precision.Solve general tape measure, ruler and cannot accomplish half-mark shortcoming accurately surely.Guarantee edger roll opening degree, alignment degree precision and computer setting uniformity, thereby reached effect and belt plate shape stability that strip width precision is controlled, the precision of improving the quality of products.

Have under, special operation condition condition severe at complex device structure and environment: it is accurately convenient 1, to demarcate; 2, simple and practical; 3, improve the advantages such as operating efficiency.The utility model process is simple simultaneously, utilizes existing equipment can reach the object of measurement, has saved production cost the utility model patent and in January, 2011, on In Baosteel's 2050 hot rolling rough rolling vertical roller mills, has implemented.After enforcement, edger roll roll gap calibration efficiency improves greatly, has alleviated hand labor intensity, has reduced security risk.Meanwhile, edger roll roll gap calibration is stablized controlled, does not occur because edger roll roll gap calibration is forbidden to cause the abnormal phenomenon of width model coefficient self study, has improved the width control accuracy that hot-rolling mill is produced slab.

Claims (4)

1. a continuous hot-rolling mill roughing vertical roll roll gap calibration device, comprise the edger roll entrance cruciform bracing (9) and the edger roll outlet cruciform bracing (12) that be arranged in parallel, be arranged at the active side vertical roll bearing seat (11) of the transmission side vertical roll bearing seat (16) between described edger roll entrance cruciform bracing (9) and edger roll outlet cruciform bracing (12), be arranged at mid point between the active side vertical roll bearing seat (11) of described transmission side vertical roll bearing seat (16), connect the edger roll framework bridge of the nose (13) of described entrance cruciform bracing (9) and edger roll outlet cruciform bracing (12), it is characterized in that
On described transmission side vertical roll bearing seat (11), be provided with by the edger roll center of circle, perpendicular to the transmission side edger roll center line (1) of described entrance cruciform bracing (9), on described active side vertical roll bearing seat (16), be provided with by the edger roll center of circle, perpendicular to the active side edger roll center line (7) of described entrance cruciform bracing (9), on the described edger roll framework bridge of the nose (13), be provided with rolling centerline (4);
The intersection of described transmission side vertical roll bearing seat (16) edge and described transmission side edger roll center line (1) is provided with transmission side and measures plate (2), the intersection of the described edger roll framework bridge of the nose and described edger roll entrance cruciform bracing is provided with center and measures plate (5), and the intersection of described active side vertical roll bearing seat (11) edge and described active side edger roll center line (7) is provided with active side and measures plate (8);
Described rolling centerline (4) two sides are provided for measuring the transmission side measurement plate (2) of bearing block and crossbeam reference position, transmission side laser range finder (3) and the active side laser range finder (6) that the spacing of plate (5), active side measurement plate (8) is measured at center; Described transmission side laser range finder (3) and active side laser range finder (6) electricly connect with roughing Basic automation control system CPU15.
2. a kind of continuous hot-rolling mill roughing vertical roll roll gap calibration device according to claim 1, is characterized in that, each vertical roll bearing seat is all installed two blocks of central line measurement plates, is arranged symmetrically with.
3. a kind of continuous hot-rolling mill roughing vertical roll roll gap calibration device according to claim 1, is characterized in that, described vertical roll bearing seat is turnover use, rotatable 180 ° of installations.
4. a kind of continuous hot-rolling mill roughing vertical roll roll gap calibration device according to claim 1, it is characterized in that, transmission side laser range finder (3), active side laser range finder (5) measurement data upload to roughing basic automatization CPU15 automatically by communication cable (14).
CN201320682543.7U 2013-10-31 2013-10-31 Rough rolling vertical roller gap calibration device for hot continuous rolling mill CN203778497U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104624999A (en) * 2014-11-27 2015-05-20 中冶连铸技术工程有限责任公司 Roll gap calibration device and method for square billet tension leveler
CN106040753A (en) * 2016-06-21 2016-10-26 首钢京唐钢铁联合有限责任公司 Vertical roller gap calibrating method
CN106140828A (en) * 2015-04-27 2016-11-23 鞍钢股份有限公司 A kind of heavy and medium plate mill edger roll roll gap scaling method
CN108436051A (en) * 2017-02-16 2018-08-24 宝山钢铁股份有限公司 A kind of integrated online roll gap meter of chain link
CN110153203A (en) * 2019-05-29 2019-08-23 北京首钢股份有限公司 A kind of edger roll scaling method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104624999A (en) * 2014-11-27 2015-05-20 中冶连铸技术工程有限责任公司 Roll gap calibration device and method for square billet tension leveler
CN106140828A (en) * 2015-04-27 2016-11-23 鞍钢股份有限公司 A kind of heavy and medium plate mill edger roll roll gap scaling method
CN106040753A (en) * 2016-06-21 2016-10-26 首钢京唐钢铁联合有限责任公司 Vertical roller gap calibrating method
CN108436051A (en) * 2017-02-16 2018-08-24 宝山钢铁股份有限公司 A kind of integrated online roll gap meter of chain link
CN110153203A (en) * 2019-05-29 2019-08-23 北京首钢股份有限公司 A kind of edger roll scaling method

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