CN209452497U - Rougher of hot strip mill and finish rolling centering coalignment - Google Patents
Rougher of hot strip mill and finish rolling centering coalignment Download PDFInfo
- Publication number
- CN209452497U CN209452497U CN201822148400.3U CN201822148400U CN209452497U CN 209452497 U CN209452497 U CN 209452497U CN 201822148400 U CN201822148400 U CN 201822148400U CN 209452497 U CN209452497 U CN 209452497U
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- flipper guide
- finish rolling
- rougher
- guide
- coalignment
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Abstract
The utility model provides a kind of rougher of hot strip mill and finish rolling centering coalignment, the rougher of hot strip mill and finish rolling centering coalignment include: delay table, delay table is equipped with multiple live-rollers, flipper guide, it is arranged on the delay table, flipper guide includes: trumpet-shaped inlet, retained part and the guide wheel positioned at trumpet-shaped inlet and retained part intersection, and the guide wheel has shaft；Two flipper guides are equipped at intervals on the delay table, respectively the first flipper guide and the second flipper guide, first flipper guide is located at the middle position of delay table, and before the second flipper guide is located at mm finishing mill unit entrance, the second flipper guide is between the first flipper guide and mm finishing mill unit.The utility model is not necessarily to change the middle line of the middle line of roughing mills, the middle line of mm finishing mill unit and delay table, is rectified a deviation by flipper guide easy to remove, thus simple and easy, is finally reached the centering and the matched purpose of finish rolling centering of intermediate base.
Description
Technical field
The utility model relates to steel rolling fields, and in particular to when hot-continuous-rolling strip steel rolls, a kind of rougher of hot strip mill and finish rolling
Centering coalignment.
Background technique
When hot-continuous-rolling strip steel rolls, slab becomes intermediate base after roughing mill rolls, and intermediate base passes through delay table again
Finishing mill is transported to be rolled.Delay table is the straight line connection roller-way of roughing, finish rolling, and delay table two sides have side to lead
Plate.Flipper guide entrance guides intermediate base to enter in horn-like, and clamping action is then played to intermediate base in other positions of flipper guide, prevents
Only intermediate base sideslip.Intermediate base, which enters in the finish rolling operation of rolling often, to be existed because plate shape is poor caused by wedge shape is larger, and influencing client makes
The case where using.
The wedge-shaped deviation (Wedgede.viation) of hot-strip is defined as: from the transmission side edge of strip to strip
The difference of thickness at 25mm and the thickness from work side edge to from strip 25mm, i.e. △ hd=△ h25-DS-△h25-WS, △ in formula
hdFor wedge-shaped deviation, mm；△h25-DSFor thickness of the transmission side edge at 25mm of strip, mm；△h25-WSFor the work of strip
Thickness of the side edge at 25mm, mm.The wedge shape of strip is measured by the pressure sensor and profile gauge of mm finishing mill unit end rack,
And transmit and cheat process control computer, feedback adjustment is carried out after being computed.And when wedge shape is in the larger value always, then it is often
Roughing, finish rolling center line mismatch, and whole sideslip causes after intermediate base enters finishing mill.Roughing, finish rolling center line mismatch are
Roughing, finish rolling center line not point-blank.After the completion of roughing mill rolling, because roughing mill flipper guide itself, edger roll etc. are set
Standby limitation, intermediate base centering are consistent with roughing mill centering.When roughing, finish rolling centering not point-blank when, then it is intermediate
The centering of base also with the centering of finish rolling not point-blank, wedge asymmetric so as to cause roll gap pressure in two sides when finish rolling rolling
Shape is excessive.In addition when roughing, finish rolling center line mismatch, roughing, finish rolling center line offset be difficult to it is intuitive, quickly carry out
Monitoring.
Currently, be directed to roughing, finish rolling center line non-matching phenomenon, generally require it is whole to roughing mills, mm finishing mill unit into
Row adjusts neutrality, and adjustment difficulty is big, time-consuming long, costly.Moreover, the roughing of certain hot rolling producing lines, finish rolling center line are endless
The phenomenon that full matching, can not be readily available elimination, need adjustment often repeatedly.
In conclusion following problems exist in the prior art: when hot-continuous-rolling strip steel rolls, roughing, finish rolling center line are not
It is inconvenient with adjustment.
Utility model content
The utility model provides a kind of rougher of hot strip mill and finish rolling centering coalignment, roughing, finish rolling center line not
In the case where matching, guarantee the matching of intermediate base centering and finishing mill centering, to reach reduction wedge shape, the mesh of steadying plate shape
's.
For this purpose, the utility model proposes a kind of rougher of hot strip mill and finish rolling centering coalignment, the rougher of hot strip mill and
Finish rolling centering coalignment includes:
Delay table is arranged between roughing mills and mm finishing mill unit；Delay table is equipped with multiple live-rollers, each to be driven
The plate face of the axis of roller intermediate base in parallel；
Flipper guide, be arranged on the delay table, flipper guide include: trumpet-shaped inlet, retained part and be located at loudspeaker
The guide wheel of shape entrance and retained part intersection, the guide wheel have shaft, the plate of the axially vertical intermediate base of the shaft
Face；
Two flipper guides, respectively the first flipper guide and the second flipper guide, the first side are equipped at intervals on the delay table
Guide plate is located at the middle position of delay table, and before the second flipper guide is located at mm finishing mill unit entrance, the second flipper guide is located at the first side
Between guide plate and mm finishing mill unit.
Further, the length of the delay table is 100m, and the length of each flipper guide is 5m to 5.5m.
Further, trumpet-shaped inlet maximum width is 30mm bigger than retained part width.
Further, the rougher of hot strip mill and finish rolling centering coalignment further include: drive the flipper guide in centre
The driving device moved horizontally on roller-way.
Further, each flipper guide further include: connect the guide wheel and to drive the guide wheel to be axially moveable hydraulic
Cylinder.
Further, the mm finishing mill unit is L, the middle line phase of the first flipper guide relative to the overall offset amount of roughing mills
Midline shift amount for roughing mills is the 61.8% of overall offset amount L, and the middle line of the second flipper guide is relative to roughing mills
Midline shift amount be overall offset amount L 38.2%.
Further, the length of trumpet-shaped inlet is 1.2m, and retained part length is 4m.
Further, the guide wheel of the guide wheel of the first flipper guide 50m before mm finishing mill unit entrance, the second flipper guide are located at essence
Roll 10-20m before unit inlet.
Further, the guide wheel of the second flipper guide is located at before mm finishing mill unit entrance at 15m.
Further, retained part width is 40mm wider than intermediate base.
The utility model is directed to certain hot rolling producing lines since roughing, finish rolling center line mismatch, and such centering mismatches
The case where elimination can not be readily available, two steps that can be rectified a deviation by the determining and intermediate base of offset are controlled, and guarantee that intermediate base exists
Centering rolling in finishing mill, achievees the purpose that control wedge shape.The utility model is not necessarily to change middle line, the finishing mill of roughing mills
The middle line of group and the middle line of delay table, rectified a deviation, thus simple and easy by flipper guide easy to remove, is finally reached
Between base centering and the matched purpose of finish rolling centering.
Detailed description of the invention
Fig. 1 is the operation principle schematic diagram that the offset of the single finish rolling milling train of the utility model determines；
Fig. 2 is the schematic diagram of the flipper guide position of the utility model；
Fig. 3 is the operation principle schematic diagram that the flipper guide of the utility model guides intermediate base centering.
Drawing reference numeral explanation:
1, roughing mills；2, delay table；3, flipper guide；4, mm finishing mill unit；5, intermediate base；6, worn area is rolled；7, it rolls
Roller；lDS, transmission side rolling eroded area edge and transmission side distance；LWS, working side rolling eroded area edge and working side away from
From.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now compareing Detailed description of the invention
The utility model.
The working principle of the utility model is: for certain hot rolling producing lines since roughing, finish rolling center line mismatch, and should
The case where class centering mismatch can not be readily available elimination, two steps that can be rectified a deviation by the determining and intermediate base of offset are controlled,
Guarantee intermediate base in finishing mill to middle rolling, achieve the purpose that control wedge shape.
Offset determination can understand indirectly strip in finishing mill by the actual wear situation of tracking each breast roller of finish rolling
Whether sideslip and the substantially offset of each rack is determined.When perfect condition in finishing mill intermediate base centering and roll centering one
It causes.After each rack offset of finish rolling determines, then ideally roughing, finish rolling center line exist it is almost the same with offset
Deviation.Understand strip indirectly by the actual wear situation of each breast roller of finish rolling whether sideslip and to determine each in mm finishing mill unit
The substantially offset of rack, it is simple and effective.Then right by the superposition of the multiple flipper guide Centering compensation adjustment of delay table
Intermediate base is guided in, is reached intermediate base centering rectification operation, is finally reached the centering and finish rolling centering of intermediate base
The purpose matched.
The utility model proposes a kind of rougher of hot strip mill and finish rolling centering match control method, the rougher of hot strip mill and essence
Rolling centering match control method includes:
Step A: overall offset amount of the intermediate base in mm finishing mill unit is determined；
Step B: as shown in Fig. 2, in the middle line, the middle line of mm finishing mill unit and the middle line of delay table that do not change roughing mills
Under the premise of, being laterally oriented to intermediate base is set on the delay table 2 between roughing mills 1 and mm finishing mill unit 4
Flipper guide 3；The plate face of the vertical intermediate base of the guide surface of flipper guide 3；
Step C: according to overall offset amount of the intermediate base in mm finishing mill unit, the correction amount of flipper guide is preset, to intermediate base
Correction, the middle line that flipper guide is pressed in the correction direction of flipper guide are set toward with the opposite side of the overall offset amount in unit.For example, such as
Overall offset amount of the base in mm finishing mill unit is to be biased to roll working side about 40mm among fruit, then the middle line of flipper guide is passed toward roll
Dynamic lateral deviation 40mm.
Further, in the step A, the offset of intermediate base each milling train in mm finishing mill unit is first measured, then is passed through
The method of linear regression determines overall offset amount of the intermediate base in mm finishing mill unit.In this way, the overall offset amount in mm finishing mill unit
With higher systematicness and accuracy.
Further, as shown in Figure 1, intermediate base offset measurement of each milling train in mm finishing mill unit is as follows: measurement one
Length of the 6 domain edge of worn area away from 7 both ends of roll is rolled when the roll 7 of frame finishing mill is changed after a rolling cycle
Degree determines intermediate base 5 in the offset of the finishing mill, i.e. finishing mill offset Δ l=l by length differenceDS-LWS, it is driven in formula
It is l that side, which rolls eroded area edge and transmission side distance,DS, unit mm；Working side roll eroded area edge and working side away from
From for LWS, unit mm；Intermediate base 5 is biased to working side if Δ l>0, if the intermediate base 5 of Δ l<0 is biased to transmission side.
Further, as shown in Figures 2 and 3, two flipper guides are equipped at intervals on delay table 2, respectively the first side is led
Plate 31 and the second flipper guide 32, each flipper guide 3 include: trumpet-shaped inlet 34, retained part 36 and be located at trumpet-shaped inlet
With the guide wheel 35 of retained part intersection, the guide wheel has shaft, the plate face of the axially vertical intermediate base of the shaft；First
Flipper guide 31 is located at the middle position of delay table 2, before the second flipper guide 32 is located at 4 entrance of mm finishing mill unit.Trumpet-shaped inlet 34
For guiding intermediate base 5 to enter the retained part 36 of flipper guide, trumpet-shaped inlet 34 include two perpendicular to intermediate blanket face and
It is inclined outwardly the vertical plate to form bell shape.Retained part 36 plays the role of base 5 among stable and centering, retained part 36
Including two perpendicular to intermediate blanket face and the vertical plate that is parallel to each other.The width at the most narrow place of trumpet-shaped inlet is equal to retained part
Width.Guide wheel 35 is located at flipper guide trumpet-shaped inlet and retained part junction, for intermediate base in operating for reduction correction
Card resistance and abrasion to delay table flipper guide.The superposition adjusted by the multiple flipper guide Centering compensations of delay table,
To being guided in for intermediate base, reaches intermediate base centering rectification operation, be finally reached the centering and finish rolling centering of intermediate base
Matched purpose.
Further, each flipper guide further include: connect the guide wheel and to drive the guide wheel to be axially moveable hydraulic
Cylinder.Moving up and down for guide wheel can be controlled according to 35 applying working condition of guide wheel by hydraulic cylinder, adjust abration position, increase making for guide wheel
Use the period.Hydraulic cylinder can connect the shaft of guide wheel 35, and by moving up and down for the shaft of Driven by Hydraulic Cylinder guide wheel 35, drive is led
Wheel moves up and down, in this way, moving up and down for guide wheel is convenient and efficient, saves adjustment time.
Further, the length of the delay table is 100m, and the length of each flipper guide is 5m to 5.5m, the first flipper guide
Ratio setting of rectifying a deviation is 61.8%, plays the role of coarse adjustment, and the second flipper guide correction ratio setting is 38.2%, plays accurate adjustment work
With.The adjustment ratio of above-mentioned coarse adjustment and accurate adjustment is golden section proportion, is avoided first because of the excessive formation adjustment of single adjustment amount
Greatly, the problem that the abrasion to equipment is big is caused；Secondly, the adjustment ratio of above-mentioned coarse adjustment and accurate adjustment is according to actual production reality
It tramples, the preferable numerical value obtained by repeated screening, the adjustment ratio of above-mentioned coarse adjustment and accurate adjustment can guarantee coarse adjustment and accurate adjustment
Reasonable distribution and smooth connection guarantee the stability and fluency of entire adjustment process, avoid the excessive or too small of coarse adjustment ratio
Cause the mismatch of the adjustment capability of accurate adjustment.
Further, the guide wheel of the first flipper guide is located at before mm finishing mill unit entrance at 50m；To there is enough distances to carry out
The guide wheel of coarse adjustment, the second flipper guide is located at 15m before mm finishing mill unit entrance, to have suitable distance to carry out accurate adjustment and to keep accurate adjustment
Intermediate base afterwards smoothly can smoothly enter mm finishing mill unit；The length of trumpet-shaped inlet is 1.2m, flat to intermediate base to guarantee
Slow guiding and stable holding guide effect, retained part length are 4m, and the two sides of trumpet-shaped inlet are each perpendicular to intermediate base
It plate face and is inclined outwardly, trumpet-shaped inlet maximum width=retained part width+30mm, retained part width is wider than intermediate base
40mm, to keep clamping and stablize the effect of the intermediate base of conveying.If retained part width is too small, it is likely that lead to centre
The difficulty of transportation of base will affect the guiding accuracy of trumpet-shaped inlet if retained part width is too big.
Further, the setting that the flipper guide 3 can be moved horizontally by driving device is on delay table.In this way, side
Guide plate 3 is convenient, rapid in adjustment, can be flexibly adjusted according to practical condition.
Further, further include step D: according to actual shifts situation of the intermediate base in mm finishing mill unit, obtaining practical inclined
Shifting amount according to real offset, then corrects preset correction amount, carries out dynamic compensation.The correction amount of flipper guide can be in control system
Individually setting on system, setting rear side guide plate can be realized by hydraulic cylinder to walk automatically.In production process, steel rolling personnel can be in
Between actual shifts situation of the base in finishing mill, preset flipper guide correction amount setting value, then by range estimation verifying it is adjusted
The plate profile instrument of intermediate base drift condition and combination finishing mill outlet in finishing mill, realization are led according to the correction side of practical condition
The dynamic of plate correction amount compensates.
Further, the rougher of hot strip mill and finish rolling centering coalignment are specially following steps:
By tracking the actual wear situation of each breast roller of mm finishing mill unit, centre base is inclined when measuring mm finishing mill unit rolling
To working side about 40mm；
Two be laterally oriented to intermediate base are set on the delay table between roughing mills and mm finishing mill unit
Flipper guide；Respectively the first flipper guide 31 and the second flipper guide 32, the length of the delay table are 100m, the length of each flipper guide
Degree is 5m, and the first flipper guide 31 correction ratio setting is 61.8%, and the second flipper guide 32 correction ratio setting is 38.2%；
In flipper guide use process, as the abrasion of guide wheel adjusts abration position by moving up and down for guide wheel, increase
Add the service life of guide wheel.
The utility model matches intermediate base with mm finishing mill unit centering, and shim values are in smaller value when finish rolling rolls,
Plate shape is normal.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
It encloses.It can be combined with each other under conditions of not conflicting for each component part of the utility model, any those skilled in the art,
It is practical new to should belong to this for made equivalent changes and modifications under the premise of not departing from the conceptions and principles of the utility model
The range of type protection.
Claims (10)
1. a kind of rougher of hot strip mill and finish rolling centering coalignment, which is characterized in that the rougher of hot strip mill and finish rolling centering
Include: with device
Delay table is arranged between roughing mills and mm finishing mill unit；Delay table is equipped with multiple live-rollers, each live-roller
The plate face of axis intermediate base in parallel；
Flipper guide is arranged on the delay table, and flipper guide includes: trumpet-shaped inlet, retained part and is located at horn-like
The guide wheel of entrance and retained part intersection, the guide wheel have shaft, the plate face of the axially vertical intermediate base of the shaft；
Two flipper guides, respectively the first flipper guide and the second flipper guide, the first flipper guide are equipped at intervals on the delay table
Positioned at the middle position of delay table, before the second flipper guide is located at mm finishing mill unit entrance, the second flipper guide is located at the first flipper guide
Between mm finishing mill unit.
2. rougher of hot strip mill as described in claim 1 and finish rolling centering coalignment, which is characterized in that the delay table
Length is 100m, and the length of each flipper guide is 5m to 5.5m.
3. rougher of hot strip mill as described in claim 1 and finish rolling centering coalignment, which is characterized in that trumpet-shaped inlet is maximum
Width is 30mm bigger than retained part width.
4. rougher of hot strip mill as described in claim 1 and finish rolling centering coalignment, which is characterized in that the rougher of hot strip mill
With finish rolling centering coalignment further include: the driving device for driving the flipper guide to move horizontally on delay table.
5. rougher of hot strip mill as claimed in claim 4 and finish rolling centering coalignment, which is characterized in that each flipper guide also wraps
It includes: the hydraulic cylinder for connecting the guide wheel and the guide wheel being driven to be axially moveable.
6. rougher of hot strip mill as described in claim 1 and finish rolling centering coalignment, which is characterized in that the mm finishing mill unit phase
Overall offset amount for roughing mills is L, and the middle line of the first flipper guide is whole relative to the midline shift amount of roughing mills
The 61.8% of offset L, the middle line of the second flipper guide are overall offset amount L's relative to the midline shift amount of roughing mills
38.2%.
7. rougher of hot strip mill as described in claim 1 and finish rolling centering coalignment, which is characterized in that the length of trumpet-shaped inlet
Degree is 1.2m, and retained part length is 4m.
8. rougher of hot strip mill as described in claim 1 and finish rolling centering coalignment, which is characterized in that the first flipper guide is led
Wheel 50m, guide wheel of the second flipper guide before mm finishing mill unit entrance are located at 10-20m before mm finishing mill unit entrance.
9. rougher of hot strip mill as claimed in claim 8 and finish rolling centering coalignment, which is characterized in that the second flipper guide is led
Wheel is at 15m before mm finishing mill unit entrance.
10. rougher of hot strip mill as described in claim 1 and finish rolling centering coalignment, which is characterized in that retained part width
It is 40mm wider than intermediate base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822148400.3U CN209452497U (en) | 2018-12-20 | 2018-12-20 | Rougher of hot strip mill and finish rolling centering coalignment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822148400.3U CN209452497U (en) | 2018-12-20 | 2018-12-20 | Rougher of hot strip mill and finish rolling centering coalignment |
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| Publication Number | Publication Date |
|---|---|
| CN209452497U true CN209452497U (en) | 2019-10-01 |
Family
ID=68041566
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| CN201822148400.3U Active CN209452497U (en) | 2018-12-20 | 2018-12-20 | Rougher of hot strip mill and finish rolling centering coalignment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622634A (en) * | 2018-12-20 | 2019-04-16 | 柳州钢铁股份有限公司 | Slab rougher of hot strip mill and finish rolling centering matching unit |
| CN110814031A (en) * | 2019-10-11 | 2020-02-21 | 山东盛阳金属科技股份有限公司 | Wide-band thin-plate stainless steel rolling equipment and hot rolling process thereof |
| CN112024616A (en) * | 2020-08-05 | 2020-12-04 | 鞍钢股份有限公司 | Method for improving centering precision of finishing mill guide plate |
-
2018
- 2018-12-20 CN CN201822148400.3U patent/CN209452497U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622634A (en) * | 2018-12-20 | 2019-04-16 | 柳州钢铁股份有限公司 | Slab rougher of hot strip mill and finish rolling centering matching unit |
| CN110814031A (en) * | 2019-10-11 | 2020-02-21 | 山东盛阳金属科技股份有限公司 | Wide-band thin-plate stainless steel rolling equipment and hot rolling process thereof |
| CN112024616A (en) * | 2020-08-05 | 2020-12-04 | 鞍钢股份有限公司 | Method for improving centering precision of finishing mill guide plate |
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