CN201104222Y - Laser measurement system for continuous casting billet bulging deformation - Google Patents
Laser measurement system for continuous casting billet bulging deformation Download PDFInfo
- Publication number
- CN201104222Y CN201104222Y CNU2007201442495U CN200720144249U CN201104222Y CN 201104222 Y CN201104222 Y CN 201104222Y CN U2007201442495 U CNU2007201442495 U CN U2007201442495U CN 200720144249 U CN200720144249 U CN 200720144249U CN 201104222 Y CN201104222 Y CN 201104222Y
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- laser
- light path
- continuous casting
- casting billet
- deformation
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model relates to a deformation laser measuring device, in particular to a continuous casting billet bulging deformation laser measuring system, mainly solving a technical problem that a deformation of the surface of a billet shell is difficult to be directly measured because the continuous casting billet has a rough surface and high temperature. The laser measuring system of the utility model comprises a laser ranging device, a laser transmitting light path and a data processing computer, wherein, the laser ranging device is connected with the laser transmitting light path, and is connected with the data processing computer through a data wire; the laser transmitting light path comprises a laser generator, a transmitting lens, a receiving lens and a photosensor, wherein, the transmitting lens is positioned under the laser generator, the photosensor is positioned at one side of the laser generator, and the receiving lens is positioned under the photosensor; a transmitting light path is formed by laser through the transmitting lens; a reflecting light path is formed in a target surface reflected light region, and is focused to the photosensor through the receiving lens. A demarcated reference surface is arranged under a target surface. The continuous casting billet bulging deformation laser measuring system is mainly used for measuring the deformation of the continuous casting billet bulging.
Description
Technical field:
The utility model relates to a kind of deflection laser measuring device for measuring, particularly continuous casting billet bulge deformation laser measurement system.
Background technology:
In the continuous casting billet production run, the base shell of two cold-zones is subjected to the ferrostatic pressure effect, and the base shell produces bulge deformation between niproll under the specified conditions of conticaster.The continuous casting billet surface is in the state of lasting motion and variation, the base shell moves along the throwing direction on the one hand, producing small size bulge deformation fluctuation perpendicular to the throwing direction simultaneously, this distortion fluctuation changes with pulling rate, and the bulge amount is arranged by pulling rate and roll spacing mainly to be influenced.Bulge deformation is that the restriction pulling rate also is the key factor that production efficiency improves.Along with pulling rate raises, the bulge deformation amount will increase, and unstable, and correspondingly the stress and strain that produces on the base shell also increases, and when the strain of consolidating a liquid interface of solidification front during greater than critical value, will form crackle and remain in and cause waste product in the continuous casting billet.In recent years, along with development of computer, the numerical simulation study progress of continuous casting billet distortion also has pair report of base shell bulge amount result of calculation, but all is based on theory hypothesis and static analysis rapidly.In view of the complicacy of base shell deformation mechanism under the hot conditions, lack the actual detected result checking of calculating just is not enough to say something.
Because continuous casting production environment high temperature, high humility, be difficult to the base shell surface deformation and directly measure, relevant report is very rare.In order accurately to grasp the relation of bulge deformation and pulling rate and roll spacing etc., be necessary to adopt the non-contact measurement mode, realize dynamically accurately measuring continuously the deflection and the deformation velocity on the high temperature continuous casting billet surface in the motion.
Laser measuring technique is a kind of desirable selection.Laser has: high coherence, high directivity, high monochromaticity and high brightness, so laser measurement method is widely used.Laser range finder based on the triangle geometrical principle is arranged, the laser range finder based on light traveling time measuring principle is arranged; Also has the laser interferometer of accurately measuring based on the interference of light principle.The applied environment and the measuring accuracy of various measuring methods have nothing in common with each other, and very big difference is arranged.
Though laser measuring technique has a large amount of application in different field, Shang Weijian uses in continuous casting billet shell bulge deformation is measured.The difficult point of measuring is: the object surface temperature height, rough surface has water and water vapor to disturb, and the certain deformation scope is arranged.
The utility model content:
The purpose of this utility model provides a kind of continuous casting billet bulge deformation laser measurement system, solves mainly that the continuous casting billet surface is slightly hot-tempered, temperature is high, is difficult to the technical matters that surface deformation is directly measured to the base shell.
The technical solution of the utility model is: a kind of continuous casting billet bulge deformation laser measurement system, comprise laser ranging system, Laser emission light path and data handling machine, laser ranging system connects the Laser emission light path, and laser ranging system connects data handling machine by data line.Described Laser emission light path comprises laser generator, diversing lens, receiver lens, photoelectric sensor, and diversing lens is positioned at the laser generator below, and photoelectric sensor is positioned at laser generator one side, and receiver lens is positioned at the photoelectric sensor below; Laser forms the emission light path by diversing lens, forms reflected light path in target surface reflected light district, and reflected light path focuses on photoelectric sensor by receiver lens.Below target surface, be provided with the demarcation reference field.
Demarcating reference field is the surperficial firm sheet metal of a light, when beginning to measure in each measuring position, at first measuring basis is demarcated.With laser ranging system lay fix after, using the surperficial firm sheet metal of a light to ride on two support nip rolls of measuring point simulates casting billet surface and aims at distance measuring equipment, measure the distance of sheet metal then and be kept in the computing machine, carry out data analysis when this distance promptly is used for the continuous casting billet actual measurement as the benchmark of measuring.During actual measurement, the continuous casting billet surface will change within the specific limits around reference field, but the surface is to protrude or recessed diverse physical significance arranged then.
Adopt the utility model to carry out the bulge deformation amount in the contactless continuous coverage continuous casting billet production run and draw deformation velocity.Laser ranging system is controlled by data handling machine, and data handling machine transmits control signal to distance measuring equipment, and collects measurement data and Field Production Data simultaneously, calculates to generate base shell deflection.After measurement is finished, data handling machine is by calculating the deformation velocity in the corresponding moment, realized dynamically accurately measuring continuously the deflection and the deformation velocity on the high temperature continuous casting billet surface in the motion, and can contrast with production informations such as pulling rate, cooling water flows.
The beneficial effects of the utility model: employing the utility model carries out the bulge deformation amount in the contactless continuous coverage continuous casting billet production run, can obtain immediate data, the parameter control that changes different steel grades in the production in the past fully reaches the situation of theory hypothesis by rule of thumb, the highest pulling rate rationally, the assurance that not only help determining different steel grades are produced efficiently and stably, and the pair roller row design, the theoretical research of bulge deformation is also significant.
Description of drawings:
Fig. 1 is the utility model system architecture synoptic diagram;
Among the figure: 11 is laser ranging system, and 12 is sector-segment frames, and 13 is the conticaster backing roll, and 14 is the continuous casting billet surface, and 15 is measuring distance, and 16 is data handling machine, and 17 is production information system, and 18 is the Laser emission light path.
Fig. 2 is for measuring the synoptic diagram of light path;
Among the figure: 21 is laser generator, and 22 is diversing lens, and 23 are the emission light path, and 24 is target surface, 25 is the reflected light district, and 26 is reflected light path, and 27 is receiver lens, and 28 is photoelectric sensor, 29 are the emission optical axis, and 210 is the receiver lens axis, and 211 for demarcating reference field.
Embodiment: as shown in Figure 1, a kind of continuous casting billet bulge deformation laser measurement system, comprise laser ranging system 11, Laser emission light path 18 and data handling machine 16, laser ranging system 11 connects Laser emission light path 18, laser ranging system 11 models are LRFS-0040-1/2, for Beijing Orient Ji Hua company produces, laser ranging system 11 connects data handling machine 16 by data line.As shown in Figure 2, described Laser emission light path comprises laser generator 21, diversing lens 22, receiver lens 27, photoelectric sensor 28, diversing lens 22 is positioned at laser generator 21 belows, and photoelectric sensor 28 is positioned at laser generator 21 1 sides, and receiver lens 27 is positioned at photoelectric sensor 28 belows; Laser forms emission light path 23 by diversing lens 22, forms reflected light path 26 in target surface 14 reflected light districts, and reflected light path 26 focuses on photoelectric sensor 28 by receiver lens 27.Below target surface 14, be provided with and demarcate reference field 211.
When needs are measured,, before producing beginning, laser ranging system 11 laid be fixed on the continuous casting machine fan-shaped segment frames 12 with reference to Fig. 1.Measuring system uses tripod to support, and the tripod foot rest is located on the sector-segment frames 12 and fixes, and emission light path 18 is aimed at the centre position of two conticaster backing rolls 13.Laser ranging system 11 is about about 2 meters apart from the measuring distance 15 on continuous casting billet surface 14.Laser ranging system 11 can optionally be placed between any two backing rolls, can measure the base shell bulge deformation between any two rollers.
With reference to Fig. 2,1, the utility model has supporting benchmark calibration device, its essence is to use a surface-brightening that has handgrip smooth, the light metal plate (scaling board) that shape is firm, be used for before each the measurement, demarcating earlier reference field 211, the initial distance of adjustment system and light spot position, and be used for the computer data processing.Location-plate can be taken by being fixed between two continuous casting support rolls 13 by the people is hand-held.Measuring system lay finish after, before actual measurement begins, use earlier scaling board simulation continuous casting billet surface 14 to carry out measuring basis and demarcate, and measured value is kept in the computing machine.
Fig. 2 is a kind of basic mode of the selectable measurement light path of actual measurement.Laser generator 21 produces high-frequency impulse laser, becomes parallel beam emission light path 23 behind diversing lens 22.These parallel beam emission light path 23 company's of arrival target surfaces 24 are after diffuse reflection forms reflected light district 25.Receiver lens axis 210 intersects at emission optical axis 29 and demarcates reference field 211, and the angle of receiver lens axis 210 can be finely tuned by screw mechanism.Photoelectric sensor 28 is positioned on the focus of receiver lens 27.
Target surface is diffuse reflection, and target surface returns around reference field and changes in certain scope simultaneously, and receiver lens 27 can only receiving unit reflected light path 26.Owing to be that short distance is measured, and the target surface variation range is limited,, just can guarantee that photoelectric sensor 28 receives the signal of sufficient intensity and reduces light and make an uproar as long as guarantee suitable Laser emission power, receiver lens diameter and photoelectric sensor diameter.
Laser ranging system 11 is connected the real time record measurement data simultaneously with control and data handling machine 16.Computing machine 16 compares distance value and the fiducial mark definite value that receives, and generates displacement, i.e. bulge deformation amount.Because target surface is coarse, need actual measured results is carried out smoothing processing, with outstanding reflection base shell surface bulk deformation amount, and draw deflection one time curve.Because measuring beam is high frequency light (a megahertz level), so the time interval of per two adjacent measured values is minimum, and the deflection that takes place in each time interval can be considered instantaneous deformation, the approximate instantaneous deformation speed that draws, and generate deformation velocity one time curve.
Simultaneous computer 16 also is connected with production automation system, obtains production information system 17 in real time, is convenient to bulge deformation situation and working condition are analyzed.
Claims (3)
1, a kind of continuous casting billet bulge deformation laser measurement system, it is characterized in that: comprise laser ranging system, Laser emission light path and data handling machine, laser ranging system connects the Laser emission light path, and laser ranging system connects data handling machine by data line.
2, a kind of continuous casting billet bulge deformation laser measurement system according to claim 1, it is characterized in that: described Laser emission light path comprises laser generator, diversing lens, receiver lens, photoelectric sensor, diversing lens is positioned at the laser generator below, photoelectric sensor is positioned at laser generator one side, and receiver lens is positioned at the photoelectric sensor below; Laser forms the emission light path by diversing lens, forms reflected light path in target surface reflected light district, and reflected light path focuses on photoelectric sensor by receiver lens, is provided with the demarcation reference field below target surface.
3, a kind of continuous casting billet bulge deformation laser measurement system according to claim 2 is characterized in that: demarcating reference field is the surperficial firm sheet metal of a light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201442495U CN201104222Y (en) | 2007-10-25 | 2007-10-25 | Laser measurement system for continuous casting billet bulging deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201442495U CN201104222Y (en) | 2007-10-25 | 2007-10-25 | Laser measurement system for continuous casting billet bulging deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201104222Y true CN201104222Y (en) | 2008-08-20 |
Family
ID=39951254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201442495U Expired - Fee Related CN201104222Y (en) | 2007-10-25 | 2007-10-25 | Laser measurement system for continuous casting billet bulging deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201104222Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221329A (en) * | 2011-03-31 | 2011-10-19 | 刘海庆 | Tool for positioning and detecting sector section of continuous casting machine |
| CN104275448A (en) * | 2014-10-27 | 2015-01-14 | 大连理工大学 | Online detection method of bulging of peritectic steel continuous casting sheet billet |
| CN110487526A (en) * | 2019-08-19 | 2019-11-22 | 武汉钢铁有限公司 | Fan-shaped section foot roller state monitoring apparatus and method for diagnosing faults |
-
2007
- 2007-10-25 CN CNU2007201442495U patent/CN201104222Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221329A (en) * | 2011-03-31 | 2011-10-19 | 刘海庆 | Tool for positioning and detecting sector section of continuous casting machine |
| CN104275448A (en) * | 2014-10-27 | 2015-01-14 | 大连理工大学 | Online detection method of bulging of peritectic steel continuous casting sheet billet |
| CN110487526A (en) * | 2019-08-19 | 2019-11-22 | 武汉钢铁有限公司 | Fan-shaped section foot roller state monitoring apparatus and method for diagnosing faults |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 Termination date: 20141025 |
|
| EXPY | Termination of patent right or utility model |