CN103028617B - Online testing method and measuring device of shape wave defects of hot rolled strip steel - Google Patents
Online testing method and measuring device of shape wave defects of hot rolled strip steel Download PDFInfo
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- CN103028617B CN103028617B CN201110296386.1A CN201110296386A CN103028617B CN 103028617 B CN103028617 B CN 103028617B CN 201110296386 A CN201110296386 A CN 201110296386A CN 103028617 B CN103028617 B CN 103028617B
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Abstract
The invention relates to the field of online control of hot rolled strip steel coil separating line shape wave and particularly relates to an online testing method and a measuring device of shape wave defects of hot rolled strip steel. The online testing method and the measuring device of the shape wave defects of the hot rolled strip steel are characterized in that the measuring device of the shape wave defects is arranged above strip steel on an entrance side of a hot rolled coil separating line and is provided with an oscillating rod, wherein the oscillating rod moves along with the hot rolling strip steel and the end portion of the oscillating rod slides on the strip steel. The height of the shape wave of the position of the end portion of the oscillating rod is calculated through measuring deflection angles of the oscillating rod as the following steps: (1) setting the deflection angle of the oscillating rod to be 45 degrees when the strip steel is straight; (2) measuring the deflection angle with the value of theta when shape wave is formed on the strip steel; (3) approximately calculating the height h of the shape wave according to a formula h = R* cosine 45 degrees - R cosine theta. Compared with the prior art, the online testing method and the measuring device of shape wave defects of hot rolled strip steel have the advantages of being capable of providing real-time information of the shape wave defects of the coils to operators, ensuring that the operators can conduct flatting adjustment in advance and flatting efficiency and flatting quality are improved.
Description
Technical field
The present invention relates to hot-strip and divide spiral shape wave On-line Control field, relate in particular to a kind of wave-shaped defect in hot rolling strip steel online test method and measurement mechanism thereof.
Background technology
Wave-shaped defect in hot rolling strip steel is a kind of flatness defect producing in hot rolling production process, current this defect can export plate profile instrument by mm finishing mill unit and carry out site tracing monitoring, but when steel plate is after follow-up laminar flow cooling technology and the remaining warm self tempering of coil of strip itself, can there is random uncertain variation in plate shape shape wave defect, for grasping the data of flatness defect, must carry out manual measurement by a upper minute spiral, only have shape wave defect is carried out to anticipation in advance, the smooth efficiency in guarantee postorder formation process and smooth quality.
Summary of the invention
The object of this invention is to provide a kind of wave-shaped defect in hot rolling strip steel online test method and measurement mechanism thereof, overcome the deficiencies in the prior art, in hot rolling, divide and on spiral, increase online shape wave defectoscopy, the shape wave defect information of coiled sheet is provided to operating personnel, make bundling operating personnel can shift to an earlier date anticipation and carry out smooth adjustment, improve smooth efficiency and smooth quality.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of wave-shaped defect in hot rolling strip steel online test method, above hot rolling divides spiral entrance side band steel, fixed position arranges shape wave defectoscopy device, this device is provided with a fork, movement along with hot-strip, swing link end part slides on band steel, by the deflection angle of measuring oscillating bar, can calculate the shape wave height of swing link end part position, its concrete operation step is as follows:
1) when band steel head threading is by after milling train, start shape wave defectoscopy device, swing link end part drops on belt steel surface and slides along belt steel surface, and when belt steel surface is straight, the deflection angle of the fork of adjusting is 45 °;
2) when band steel occurs after shape wave, the deflection angle of fork changes, and measuring this deflection angle value is θ;
3) can approximate calculation shape wave height h according to formula h=Rcos45 °-Rcos θ, wherein R is oscillating bar length mm.
A kind of shape wave defectoscopy device, comprise axle sleeve, main shaft, motor, resistor type angle measuring instrument, fork and sliding sleeve, in axle sleeve, be coaxially provided with main shaft, main shaft is provided with resistor type angle measuring instrument, spindle nose is provided with belt pulley one and is connected with motor shaft end belt pulley two by belt, main shaft is connected with fork one end, and the fork other end is provided with sliding sleeve.
The measurement category of described resistor type angle measuring instrument is 0～90 °.
Described oscillating bar length is greater than 200 with swing link end part sliding sleeve diameter ratio.
Compared with prior art, the invention has the beneficial effects as follows: by dividing in hot rolling, on spiral, increase online shape wave defectoscopy device, the shape wave defect information of coiled sheet is provided in real time can to operating personnel, make bundling operating personnel can shift to an earlier date anticipation and carry out smooth adjustment, improve smooth efficiency and the smooth quality of the smooth operation of postorder.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention structural representation.
In figure: 1-axle sleeve 2-main shaft 3-motor 4-resistor type angle measuring instrument 5-fork 6-sliding sleeve 7-belt pulley one 8-belt 9-belt pulley two 10-band steel
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
See Fig. 1, it is a kind of wave-shaped defect in hot rolling strip steel online test method of the present invention example structure schematic block diagram, above hot rolling divides spiral entrance side band steel, fixed position arranges shape wave defectoscopy device, this device is provided with fork 5, along with the movement with steel 10, slide in fork 5 ends on band steel, by the deflection angle of measuring oscillating bar 5, the shape wave height h that can calculate fork 5 positions, end, its concrete operation step is as follows:
1) when band steel 10 head threadings are by after milling train, start shape wave defectoscopy device, motor 3 rotations, fork 5 is fallen by horizontal start bit, fork 5 ends are dropped on band steel 10 surface and are followed slip along belt steel surface, and surperficial when straight when band steel 10, the deflection angle of the fork 5 of adjusting is 45 °;
2) when band steel 10 occurs after shape wave, the deflection angle of fork 5 changes, and measuring this deflection angle value is θ;
3) can approximate calculation shape wave height h according to formula h=Rcos45 °-Rcos θ, wherein R is oscillating bar length mm, fork 5 length are more than or equal to 200 with swing link end part sliding sleeve 6 diameter ratios, in embodiment, get R=1000mm, sliding sleeve 6 diameter 5mm, when θ is 60 °, h=707.21-1000cos60 °=207.21mm, sliding sleeve 6 diameter 5mm can ignore with respect to oscillating bar length;
Above-mentioned a kind of shape wave defectoscopy device, comprise axle sleeve 1, main shaft 2, motor 3, resistor type angle measuring instrument 4, fork 5 and sliding sleeve 6, the interior main shaft 2 that is coaxially provided with of axle sleeve 1, main shaft 2 is provided with resistor type angle measuring instrument 4, and along with main shaft 2 angles change, resistance also changes thereupon, the also proportional variation of corresponding measurement electric current, main shaft 2 ends are provided with belt pulley 29 and are connected with motor 3 axle head belt pulleys 1 by belt 8, and main shaft 2 is connected with fork 5 one end, and fork 5 other ends are provided with sliding sleeve 6.The measurement category of resistor type angle measuring instrument 4 is 0～90 °, and horizontal position is start bit.When fork 5 length are greater than 200 with swing link end part sliding sleeve 6 diameter ratios, sliding sleeve 6 diameters can be ignored for the impact of final shape wave defect h calculated value.
Claims (1)
1. a wave-shaped defect in hot rolling strip steel online test method, it is characterized in that, above hot rolling divides spiral entrance side band steel, fixed position arranges shape wave defectoscopy device, this device is provided with a fork, along with the movement of hot-strip, swing link end part slides on band steel, by the deflection angle of measuring oscillating bar, the shape wave height that can calculate swing link end part position, its concrete operation step is as follows:
1) when band steel head threading is by after milling train, start shape wave defectoscopy device, swing link end part drops on belt steel surface and slides along belt steel surface, and when belt steel surface is straight, the deflection angle of the fork of adjusting is 45 °;
2) when band steel occurs after shape wave, the deflection angle of fork changes, and measuring this deflection angle value is θ;
3) can approximate calculation shape wave height h according to formula h=Rcos45 °-Rcos θ, wherein R is oscillating bar length mm;
Realize the shape wave defectoscopy device of described online test method, comprise axle sleeve, main shaft, motor, resistor type angle measuring instrument, fork and sliding sleeve, in axle sleeve, be coaxially provided with main shaft, main shaft is provided with resistor type angle measuring instrument, spindle nose is provided with belt pulley two and is connected with motor shaft end belt pulley one by belt, main shaft is connected with fork one end, and the fork other end is provided with sliding sleeve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110296386.1A CN103028617B (en) | 2011-09-30 | 2011-09-30 | Online testing method and measuring device of shape wave defects of hot rolled strip steel |
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| CN201110296386.1A CN103028617B (en) | 2011-09-30 | 2011-09-30 | Online testing method and measuring device of shape wave defects of hot rolled strip steel |
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| CN103028617A CN103028617A (en) | 2013-04-10 |
| CN103028617B true CN103028617B (en) | 2014-11-05 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511487B (en) * | 2013-09-30 | 2016-08-24 | 宝山钢铁股份有限公司 | The detection method of shape wave steel plate length |
| CN105363801B (en) * | 2015-11-11 | 2018-01-12 | 北京首钢股份有限公司 | A kind of online strip shape quality apparatus for evaluating of skin pass mill group and method |
| CN110316337B (en) * | 2019-03-25 | 2022-07-12 | 青岛觉海科技有限公司 | Multifunctional variable-pitch primary-secondary underwater robot |
| CN110293137B (en) * | 2019-04-04 | 2021-01-01 | 飞马智科信息技术股份有限公司 | Automatic threading control method of hot rolling leveling and coil splitting unit |
| CN115069791B (en) * | 2022-06-09 | 2023-03-10 | 北京科技大学 | Strip steel wave-shaped defect online judgment method and system |
Citations (5)
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| DE1623342B1 (en) * | 1966-09-07 | 1974-09-12 | Yawata Iron & Steel Co | Device for determining the waviness of band-shaped objects |
| US5489774A (en) * | 1994-09-20 | 1996-02-06 | The Board Of Trustees Of The Leland Stanford University | Combined atomic force and near field scanning optical microscope with photosensitive cantilever |
| CN2453385Y (en) * | 2000-11-29 | 2001-10-10 | 宝山钢铁股份有限公司 | Device for measuring irregularity of surface of steel band of steel sheet |
| CN2579539Y (en) * | 2002-10-17 | 2003-10-15 | 鞍钢集团新钢铁有限责任公司 | Contact band steel wave shape detector |
| CN100410618C (en) * | 2003-02-27 | 2008-08-13 | 株式会社三丰 | Measuring instrument |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05141905A (en) * | 1991-11-22 | 1993-06-08 | Sumitomo Metal Ind Ltd | Shape measuring device for metal strip |
| JP5000894B2 (en) * | 2006-01-24 | 2012-08-15 | 株式会社ミツトヨ | Surface texture measuring machine |
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2011
- 2011-09-30 CN CN201110296386.1A patent/CN103028617B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1623342B1 (en) * | 1966-09-07 | 1974-09-12 | Yawata Iron & Steel Co | Device for determining the waviness of band-shaped objects |
| US5489774A (en) * | 1994-09-20 | 1996-02-06 | The Board Of Trustees Of The Leland Stanford University | Combined atomic force and near field scanning optical microscope with photosensitive cantilever |
| CN2453385Y (en) * | 2000-11-29 | 2001-10-10 | 宝山钢铁股份有限公司 | Device for measuring irregularity of surface of steel band of steel sheet |
| CN2579539Y (en) * | 2002-10-17 | 2003-10-15 | 鞍钢集团新钢铁有限责任公司 | Contact band steel wave shape detector |
| CN100410618C (en) * | 2003-02-27 | 2008-08-13 | 株式会社三丰 | Measuring instrument |
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