CN104307881B - Seamless steel pipe rolling mill rolling centerline method of adjustment - Google Patents
Seamless steel pipe rolling mill rolling centerline method of adjustment Download PDFInfo
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- CN104307881B CN104307881B CN201410536494.5A CN201410536494A CN104307881B CN 104307881 B CN104307881 B CN 104307881B CN 201410536494 A CN201410536494 A CN 201410536494A CN 104307881 B CN104307881 B CN 104307881B
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Abstract
The present invention provides a kind of seamless steel pipe rolling mill rolling centerline method of adjustment, measures mill milling centrage, and then determine adjustment direction and the adjustment amount of frame on the basis of the centrage of restraint tooth bar.Compared with prior art, the method that the present invention uses rolling-mill housing centrage and the centerline parallel of restraint tooth bar, it is ensured that frame central line is parallel with rolling centerline, not only numerical value is little, Adjustment precision is high, deviation will not be accumulated in adjustment, and method is simple, speed of application is fast, and efficiency is high.Overcome and utilize traditional tandem mill rolling centerline method of adjustment, there is the defect of more large deviation in adjustment afer bay centrage and rolling centerline, and in actual production, this method of adjustment can be used widely, both ensure that progress, quality, in turn ensure that equipment adjustment precision.
Description
Technical field
The invention belongs to tandem mill installation and maintenance technical field, especially relate to a kind of seamless steel pipe rolling mill
Rolling centerline method of adjustment.
Background technology
In tandem mill, the quality of rolling centerline directly influences the quality of overhaul of the equipments and produces tapping
The quality of pipe.Owing to milling train foundation settlement is uneven, cause inlet of rolling mill settlement values more salty than milling train goes out
Fall numerical value is bigger than normal, makes mill housing centrage and frame central line relatively large deviation also occur.As used tradition
The mill housing centrage method of adjustment parallel with frame central line, although adjustment amount is little, difficulty of construction
Low, but adjust afer bay centrage, with rolling centerline, more large deviation occurs, and its deviation is accumulated below
Winding arbor extraction press, the equipment such as sizing mill time, by exaggerated several times.So we use new method of adjustment,
Ensure frame central line parallel with rolling centerline, not only adjustment numerical value is little, Adjustment precision is high, deviation not
Can accumulate.Both ensure that progress, quality, in turn ensure that equipment adjustment precision.
Summary of the invention
The problem to be solved in the present invention is for overcoming defect present in above-mentioned prior art, it is provided that Yi Zhongwu
Seam steel pipe rolling mill rolling centerline method of adjustment.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of seamless steel pipe rolling mill
Rolling centerline method of adjustment, measures mill milling centrage on the basis of the centrage of restraint tooth bar,
And then determine adjustment direction and the adjustment amount of frame, its concrete operation step is as follows:
First the centrage of restraint tooth bar is determined with the theodolite being erected on restraint tooth bar；
2. optical collimator is erected at milling train exit, mirror holder is located at inlet of rolling mill, with step
The most 1., on the basis of the centrage of restraint tooth bar determined by, adjust optical collimator and reflecting mirror, make light
Learn collimator and reflecting mirror be at step 1. in determined by restraint tooth bar centrage on；
3. it is separately fixed at measuring tripod in each frame of milling train；
The most then with step 2. in the optical collimator adjusted measure successively in each frame of milling train
The heart and the absolute altitude of frame；
5. the data 4. measured according to step, after analytical calculation, determine each frame adjustment direction and
Adjustment amount, and frame is adjusted correspondingly, it is ensured that the rolling centerline after adjustment meets construction requirement；
6., after rolling centerline has adjusted, carry out check and measure, and record measurement data.
Further, described step 1. in, when determining the centrage of restraint tooth bar, should be with restraint tooth bar two
On the basis of end slide plate centrage.
Further, described step 3. in, the contact gap of tripod base and frame is less than 0.5mm.
The present invention has the advantage that with good effect:
1) new method of adjustment is used, it is ensured that frame central line is parallel with rolling centerline, not only adjusts
Numerical value is little, Adjustment precision is high, deviation will not be accumulated.
2) method is simple, and speed of application is fast, and efficiency is high.
Accompanying drawing explanation
Mill milling centrage schematic diagram when Fig. 1 is that sedimentation does not occurs；
Fig. 2 be settle after mill milling centrage schematic diagram.
In figure: 1-milling train；2-frame central line；3-rolling centerline；4-inlet of rolling mill；5-milling train goes out
Mouthful；6-traditional method adjusts afer bay centrage；7-this method adjusts afer bay centrage；8-milling train goes out
Entrance height is poor.
Detailed description of the invention
Below in conjunction with the accompanying drawings 1 and accompanying drawing 2 specific embodiment of the present invention is elaborated.
A kind of seamless steel pipe rolling mill rolling centerline method of adjustment, is with the centrage of restraint tooth bar as base
Standard measures mill milling centrage, determines adjustment direction and the adjustment amount of frame, its concrete operation
Step is as follows:
First, centrage is confirmed.
Owing to the centrage of restraint rack-track overlaps with milling train 1 rolling center 3 line, so first having to use
Theodolite determines the centrage of restraint tooth bar, on the basis of it, measures milling train 1 rolling centerline 3.
It should be noted that its operation or work standard is: should be with control tooth when (1) determining the centrage of restraint tooth bar
On the basis of the slide plate centrage of bar two ends.Measurement data is true and reliable.(2) meet in repair apparatus acceptance criteria
Regulation.
Afterwards, with the centrage of the restraint tooth bar that above-mentioned steps is measured, install and adjust optical collimator.
Concrete operation method is, optical collimator is first erected at milling train and exports at 5, is set up by illuminator
At inlet of rolling mill 4, adjust optical collimator and reflecting mirror the most respectively, make optical collimator and reflection
Mirror is all on the centrage of restraint tooth bar.
Afterwards, measurement data (illustrating as a example by including five frame PQF tandem mills below)；
(1) measurement tripod is placed in 1#～5# frame respectively, time fixing, guarantee tripod base and machine
The contact gap of frame is less than 0.5mm.
(2) the optical collimator adjusted by above-mentioned steps measures 5 frame central 2 of milling train and frame
Absolute altitude.
Afterwards, rolling centerline 3 is adjusted.
Calculate according to the data analysis that above-mentioned steps is measured, determine adjustment direction and the adjustment of each frame
Amount, then adjusts triangle micro-shape block and the plane locating piece of milling train bottom, makes in the frame of 5 frames
The absolute altitude of heart line 2 and frame meets construction requirement, so far, completes the adjusting of centerline of tandem mill.
It should be noted that during analytical calculation adjustment amount, be usually and calculate each frame central recorded respectively
The absolute altitude of line 2 and the distance difference of actual rolling centerline horizontal direction and frame and actual rolling center
The difference of the distance of line vertical direction.So, determine that rolling centerline 3 is in level with frame central line 2
The adjustment amount in direction, determines the rolling centerline 3 adjustment amount at vertical direction with frame absolute altitude, in rolling
Heart line 3 has all carried out accurate adjustment in X and Y two direction.This method adjust afer bay centrage 7 with
Rolling centerline deviation is typically within 0.05mm, the most reliably.
After adjustment completes, carry out check and measure, and record measurement data, form measurement result statement,
In case consulting use.
As depicted in figs. 1 and 2, due to inlet of rolling mill 4 settlement values, to export 5 settlement values than milling train inclined
Greatly, create milling train gateway difference in height 8, cause mill housing centrage and rolling-mill housing centrage 2
Relatively large deviation occurs.Traditional method adjusts afer bay centrage 6 and more large deviation occurs with rolling centerline 3,
When its deviation accumulates the equipment such as winding arbor extraction press below, sizing mill, by exaggerated several times.
And the method using milling train 1 frame central line 2 and the centerline parallel of restraint tooth bar, it is ensured that frame
Centrage 2 is parallel with rolling centerline 3, and this method adjusts afer bay centrage 7, not only adjusts number
Value is little, Adjustment precision is high, deviation will not be accumulated, and operation is simple, and efficiency of construction is high.
Above one embodiment of the present of invention is described in detail, but described content has been only the present invention's
Preferred embodiment, it is impossible to be considered the practical range for limiting the present invention.All according to the present patent application scope
Impartial change and the improvement etc. made, within all should still belonging to the patent covering scope of the present invention.
Claims (3)
1. a seamless steel pipe rolling mill rolling centerline method of adjustment, it is characterised in that: with control tooth
Measure mill milling centrage on the basis of the centrage of bar, and then determine adjustment direction and the adjustment of frame
Amount, its concrete operation step is as follows:
First the centrage of restraint tooth bar is determined with the theodolite being erected on restraint tooth bar；
2. optical collimator is erected at milling train exit, mirror holder is located at inlet of rolling mill, with step
The most 1., on the basis of the centrage of restraint tooth bar determined by, adjust optical collimator and reflecting mirror, make light
Learn collimator and reflecting mirror be at step 1. in determined by restraint tooth bar centrage on；
3. it is separately fixed at measuring tripod in each frame of milling train；
The most then with step 2. in the optical collimator adjusted measure successively in each frame of milling train
The heart and the absolute altitude of frame；
5. the data 4. measured according to step, through analytical calculation, determine adjustment direction and the tune of each frame
Whole amount, is then adjusted correspondingly frame, it is ensured that the rolling centerline after adjustment meets construction requirement；
6., after rolling centerline has adjusted, carry out check and measure, and record measurement data.
Seamless steel pipe rolling mill rolling centerline method of adjustment the most according to claim 1, it is special
Levy and be: described step 1. in, when determining the centrage of restraint tooth bar, should be sliding with restraint tooth bar two ends
On the basis of plate centrage.
Seamless steel pipe rolling mill rolling centerline method of adjustment the most according to claim 1, it is special
Levy and be: described step 3. in, the contact gap of tripod base and frame is less than 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410536494.5A CN104307881B (en) | 2014-10-11 | 2014-10-11 | Seamless steel pipe rolling mill rolling centerline method of adjustment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410536494.5A CN104307881B (en) | 2014-10-11 | 2014-10-11 | Seamless steel pipe rolling mill rolling centerline method of adjustment |
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| CN104307881A CN104307881A (en) | 2015-01-28 |
| CN104307881B true CN104307881B (en) | 2016-08-31 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798067A (en) * | 2016-04-28 | 2016-07-27 | 中冶天工集团有限公司 | Accurate measurement method for installation of rolling mill base |
| CN113231475B (en) * | 2021-05-08 | 2022-12-09 | 衡阳华菱连轧管有限公司 | Method for correcting center line of continuous pipe mill |
| CN114453426B (en) * | 2022-01-06 | 2024-05-10 | 首钢京唐钢铁联合有限责任公司 | Method for adjusting rough rolling center line |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5219114A (en) * | 1990-11-08 | 1993-06-15 | Hitachi, Ltd. | Continuous hot strip rolling system and method thereof |
| CN1107394A (en) * | 1994-11-23 | 1995-08-30 | 宝山钢铁(集团)公司 | Central line measuring and correction technique for metal pipe rolled by piercing mill |
| CN201572791U (en) * | 2009-12-04 | 2010-09-08 | 烟台鲁宝钢管有限责任公司 | Device for determining rolling central line of steel tube |
| CN102085535A (en) * | 2009-12-03 | 2011-06-08 | 唐山国丰钢铁有限公司 | Leveling control method of finishing mill |
| CN203356212U (en) * | 2013-06-21 | 2013-12-25 | 天津钢管集团股份有限公司 | Three-roller centering machine rolling center line detecting device |
| CN203437916U (en) * | 2013-07-22 | 2014-02-19 | 中冶天工集团有限公司 | Adjustable central line adjusting wire frame |
-
2014
- 2014-10-11 CN CN201410536494.5A patent/CN104307881B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5219114A (en) * | 1990-11-08 | 1993-06-15 | Hitachi, Ltd. | Continuous hot strip rolling system and method thereof |
| CN1107394A (en) * | 1994-11-23 | 1995-08-30 | 宝山钢铁(集团)公司 | Central line measuring and correction technique for metal pipe rolled by piercing mill |
| CN102085535A (en) * | 2009-12-03 | 2011-06-08 | 唐山国丰钢铁有限公司 | Leveling control method of finishing mill |
| CN201572791U (en) * | 2009-12-04 | 2010-09-08 | 烟台鲁宝钢管有限责任公司 | Device for determining rolling central line of steel tube |
| CN203356212U (en) * | 2013-06-21 | 2013-12-25 | 天津钢管集团股份有限公司 | Three-roller centering machine rolling center line detecting device |
| CN203437916U (en) * | 2013-07-22 | 2014-02-19 | 中冶天工集团有限公司 | Adjustable central line adjusting wire frame |
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| CN104307881A (en) | 2015-01-28 |
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