CN110340159A - A kind of device for a wide range of plate thickness measurement of hot rolled strip - Google Patents

A kind of device for a wide range of plate thickness measurement of hot rolled strip Download PDF

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Publication number
CN110340159A
CN110340159A CN201910512306.8A CN201910512306A CN110340159A CN 110340159 A CN110340159 A CN 110340159A CN 201910512306 A CN201910512306 A CN 201910512306A CN 110340159 A CN110340159 A CN 110340159A
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CN
China
Prior art keywords
hot rolled
wide range
rolled strip
plate thickness
laser displacement
Prior art date
Application number
CN201910512306.8A
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Chinese (zh)
Inventor
高山凤
杨欢欢
刘美红
徐磊
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山西大学
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Application filed by 山西大学 filed Critical 山西大学
Priority to CN201910512306.8A priority Critical patent/CN110340159A/en
Publication of CN110340159A publication Critical patent/CN110340159A/en

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Abstract

A kind of device for a wide range of plate thickness measurement of hot rolled strip of the present invention, belongs to metallurgical equipment test technique automatic field;Provide a kind of a kind of measurement a wide range of plate thickness measuring device of hot rolled strip that precision is higher, structure is relatively simple;A kind of technical solution are as follows: device for a wide range of plate thickness measurement of hot rolled strip, including rectification roll memorial archway and control system, the upper beam being vertically movable and fixed underbeam are provided on rectification roll memorial archway, sensor module is designed on upper beam and underbeam, sensor module includes laser displacement sensor and temperature barrier, laser displacement sensor on upper beam and underbeam carries out thickness measure to strip, control system adjusts distance of the laser displacement sensor away from strip upper surface on upper beam in real time, it is made to be in the measurement range of laser displacement sensor;It the composite can be widely applied to the on-line measurement of hot rolled strip thickness, and can realize the on-line measurement of strip convexity by increasing the quantity of sensor module in upper underbeam.

Description

A kind of device for a wide range of plate thickness measurement of hot rolled strip
Technical field
A kind of device for a wide range of plate thickness measurement of hot rolled strip of the present invention, belongs to metallurgical equipment test technique automatic Field.
Background technique
The convexity of hot rolled strip product is the important indicator of measurement strip quality, and the means master of strip convexity on-line checking If profile gauge, the key technology of detection is the accuracy of strip Thickness sensitivity, and handles detection data.It can be with It says, strip Thickness sensitivity accuracy determines the accuracy of strip convexity.Currently, mature product is all made of ray in the market Method, such as the Rui Mei company in the U.S., the measurement accuracy of the Toshiba of German IMS company and Japan, this method is high, but structure Complicated, expensive, the profile gauge of domestic large-scale rolling enterprise all relies on import.Laser displacement sensor belongs to accurate photoelectricity Instrument, measurement accuracy is high, but it is higher to ambient temperature requirements, and limiting temperature is -10 DEG C~50 DEG C, exceeds this temperature range Sensor is by cisco unity malfunction;And the position of laser displacement sensor be it is fixed, measurement range is limited, therefore, select The number of the enterprise of this method is less.
Domestic hot rolled strip manufacturing enterprise is mostly medium-sized and small enterprises, and existing milling equipment and economic base do not allow Introduce import profile gauge equipment;And milling train is mostly reversible hot milling roll, and reversible hot milling roll requires the measurement range of strip thickness It is larger.Lack the on-line measuring device of strip thickness.
Summary of the invention
A kind of device for a wide range of plate thickness measurement of hot rolled strip of the present invention, overcomes the shortcomings of the prior art, Provide a kind of a kind of measurement a wide range of plate thickness measuring device of hot rolled strip that precision is higher, structure is relatively simple.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: one kind is used for a wide range of plate of hot rolled strip The device of thickness measurement, including rectification roll memorial archway and control system are provided with the upper beam being vertically movable and solid on rectification roll memorial archway Sensor module is designed on fixed underbeam, upper beam and underbeam, sensor module includes laser displacement sensor and thermal protection dress It sets, temperature barrier is used to carry out temperature protection to laser displacement sensor, the laser displacement sensing on upper beam and underbeam Device carries out thickness measure to strip, control system adjust in real time laser displacement sensor on upper beam away from strip upper surface away from From making it be in the measurement range of laser displacement sensor.
Further, the two sides of the rectification roll memorial archway generally H-type, the rectification roll memorial archway are designed with vertical guiding Axis, the upper beam are hinged by linear bearing and guiding axis.
Further, the control system include grating scale, servo motor, industrial personal computer, motion control card, change-over terminal daughter board, Servo controller, encoder, positive limit sensors and negative limit sensors, the vertical setting of the grating scale is in the rectification roll The side of memorial archway, the upper beam are fixedly linked with upper beam extension plate, and upper beam extension plate is connected with grating scale sliding, industrial personal computer and fortune Dynamic control card is connected, and motion control card is connected with change-over terminal daughter board, servo controller respectively with change-over terminal daughter board, servo motor, Encoder, grating scale, positive limit sensors are connected with negative limit sensors, and servo motor is connected with encoder.
Further, the upper beam and the underbeam are designed with multiple sensor modules.
Further, the temperature barrier includes aluminium alloy protection box, aeroge and aluminium foil, the outer layer of aluminium alloy protection box It is pasted by aeroge and aluminium foil, the pedestal for installing the laser displacement sensor is equipped in aluminium alloy protection box, aluminium closes Optical path slit is provided on the side wall of golden protection box.
Further, the temperature barrier further includes compressed air line, and compressed air line is arranged in the aluminium alloy In protection box, compressed air line is equipped with internal air outlet and external air outlet, and internal air outlet is located at one side of the pedestal, External air outlet is located at the bottom of the outer wall of the aluminium alloy protection box.
Further, the temperature barrier further includes thermostatically-controlled equipment, and thermostatically-controlled equipment is arranged in the aluminium alloy In protection box, thermostatically-controlled equipment includes single-chip microcontroller, semiconductor chilling plate and temperature sensor, the cold end of semiconductor chilling plate with The pedestal is pasted, and temperature sensor is connected with the input terminal of single-chip microcontroller, and single-chip microcomputer output is connected with semiconductor chilling plate.
Further, the hot end of the semiconductor chilling plate is connected with water-cooling heat radiating device.
Further, the temperature sensor includes first to fourth temperature sensor, and four temperature sensors are respectively arranged On four side walls of the pedestal.
The present invention has the advantages that compared with prior art.
1. the accurate measurement that the present invention realizes a wide range of strip thickness of hot rolled strip.
2. the configuration of the present invention is simple, equipment investment is small.
3. the closed-loop control that the present invention realizes the measurement range of laser displacement sensor.
5. the present invention by be arranged multiple laser displacements sensor, it can be achieved that hot rolled strip convexity detection.
Detailed description of the invention
Fig. 1 is structural schematic diagram provided in an embodiment of the present invention.
Fig. 2 is the enlarged drawing in Fig. 1 at A.
Fig. 3 is the structural block diagram of control system provided in an embodiment of the present invention.
Fig. 4 is the air-cooled structure schematic diagram of temperature barrier provided in an embodiment of the present invention.
Fig. 5 is the heat insulating construction schematic diagram of temperature barrier provided in an embodiment of the present invention.
The schematic diagram of the position Fig. 6 temperature monitoring point arrangement provided in an embodiment of the present invention.
In figure, 1- rectification roll memorial archway, 2- guiding axis, 3- upper beam, 4- upper beam extension plate, 5- linear bearing, 6- grating scale, 7- Underbeam, 8- sensor module, 9- delivery roll, 10- strip, 11-L type support, 12- synchronous belt idle pulley, 13- synchronous belt clamping plate, 14- Synchronous belt, 15- guide shaft support, 16- driving wheel, 17- speed reducer, 18- servo motor, 19- industrial personal computer, 20- motion control card, 21- change-over terminal daughter board, 22- servo controller, 23- encoder, the positive limit sensors of 24-, the negative limit sensors of 25-, inside 26- Air outlet, 27- compressed air line, the outside 28- air outlet, 29- aluminium alloy protection box, 30- laser displacement sensor, 31- gas Gel, 32- aluminium foil, 33- pedestal, 34- optical path slit, the first temperature sensor of 35-, 36- second temperature sensor, 37- third Temperature sensor, the 4th temperature sensor of 38-.
Specific embodiment
Following further describes the present invention with reference to the drawings.
As shown in Figure 1 and Figure 2, a kind of device for a wide range of plate thickness measurement of hot rolled strip of the present invention, including rectification roll board Mill 1 and control system are provided with the upper beam 3 being vertically movable and fixed underbeam 7, upper beam 3 and underbeam 7 on rectification roll memorial archway 1 On be designed with sensor module 8, sensor module 8 includes laser displacement sensor 30 and temperature barrier, and temperature barrier is used In to the progress temperature protection of laser displacement sensor 30.9 driving plate band 10 of delivery roll translates between upper beam 3 and underbeam 7, is located at Laser displacement sensor 30 on upper beam 3 and underbeam 7 carries out thickness measure to strip 10, and control system is adjusted in real time on upper beam 3 Distance of the laser displacement sensor 30 away from 10 upper surface of strip, so that it is in the measurement range of laser displacement sensor 30.Partially The generally H-type of deflector roll memorial archway 1, the two sides of rectification roll memorial archway 1 are designed with vertical guiding axis 2, upper beam 3 by linear bearing 5 with Guiding axis 2 is hinged.
As shown in figure 3, control system includes grating scale 6, servo motor 18, industrial personal computer 19, motion control card 20, change-over terminal Daughter board 21, servo controller 22, encoder 23, positive limit sensors 24 and negative limit sensors 25, the vertical setting of grating scale 6 In the side of rectification roll memorial archway 1, upper beam 3 is fixedly linked with upper beam extension plate 4, and upper beam extension plate 4 is connected with the sliding of grating scale 6, Industrial personal computer 19 is connected with motion control card 20, and motion control card 20 is connected with change-over terminal daughter board 21, servo controller 22 respectively with Change-over terminal daughter board 21, servo motor 18, encoder 23, grating scale 6, positive limit sensors 24 are connected with negative limit sensors 25, Servo motor 18 is connected with encoder 23.
In order to the convexity of measurement plate band 10, multiple sensors can be all installed in upper beam 3 and underbeam 7 as needed Component 8.The quantity of sensor module 8 can be set according to actual needs on upper beam 3 and underbeam 7.
Upper beam 3 is moved on guiding axis 2 by synchronous belt 14 in the vertical direction, guiding form be linear bearing 5 with Guiding axis 2 cooperates.When not entering detecting state, upper beam 3 is in the upper end of guiding axis 2;When entering detecting state, According to strip thickness, upper beam 3 moves to suitable position under the driving of servo motor 18, and the determination of position precision can lead to It crosses grating scale 6 and carries out detection and by its value feedback into control system.The reading head of grating scale 6 is mounted on upper beam extension plate 4, It is moved with upper beam 3.The concrete form of the movement of upper beam 3 in the vertical direction is: based on rectification roll memorial archway 1, servo motor 18 are mounted on the top of rectification roll memorial archway 1 with speed reducer 17, and servo motor 18 reduces its revolving speed by speed reducer 17, then again will Movement passes to synchronous belt 14, and synchronous belt clamping plate 13 consolidates synchronous belt 14 and upper beam 3, and upper beam 3 is mounted on the linear axis of two sides It holds above 5, linear bearing 5 and 2 component movement pair of guiding axis, effect are guiding and support, and the mechanism is in servo motor 18 The vertical motion of upper beam 3 is realized under effect.
Upper underbeam is the critical component of plate thickness detection device, and vibration directly influences the precision of measurement.Therefore, it not only wants Consider its Static stiffness, it is also contemplated that its dynamic stiffness, when design will improve its intrinsic frequency as far as possible, and require to avoid local derviation memorial archway 1 The frequency range of vibrational energy.
The control of 3 vertical motion module of upper beam is based on industrial personal computer 19, using the motion control for grinding magnificent pci bus interface Card 20, model PCI1240 are connected to two change-over terminal daughter boards 21, model ADAM3952 on motion control card 20.Each ADAM3952 can transfer two servo controllers 22.Pulse control instruction is converted to three-phase voltage to watching by servo controller 22 Motor 18 is taken, it is made to execute corresponding movement.Servo motor selects model MSMD042G1U.Servo motor 18 carries encoder 23 detection rotor axis of electric carry out velocity feedback, and the detection tail end linear displacement of grating scale 6 carries out position feedback, to realize height 3 position control of upper beam of precision.The upper and lower ends of guiding axis 2 are respectively equipped with positive limit sensors 24 and negative limit sensors 25, Upper beam 3 is set to do vertical motion in specified range.
As shown in Figure 5, Figure 6, in order to meet requirement of the laser displacement sensor to environment temperature, sensor module 8 is set Heat insulating construction is counted.Sensor module 8 is arranged in aluminium alloy protection box 29, and the outer layer of aluminium alloy protection box 29 passes through aeroge 31 paste with aluminium foil 32, and the pedestal 33 for installing laser displacement sensor 30 is equipped in aluminium alloy protection box 29, and aluminium alloy is anti- It protects on the side wall of box 29 and is provided with optical path slit 34.
As shown in figure 4, devising air-cooled heat dissipation structure to improve the radiating efficiency to laser displacement sensor 30.? Compressed air line 27 is equipped in aluminium alloy protection box 29, compressed air line 27 is equipped with internal air outlet 26 and external air outlet 27, internal air outlet 26 is located at one side of pedestal 33, and external air outlet 34 is located at the bottom of the outer wall of aluminium alloy protection box 29.Wind Cold scattered hot medium is the compressed air of 0.4MPa, and compressed air is by 29 bottom of aluminium alloy protection box and from its optical path narrow slit 34 Internal heat is taken away in outflow.Compressed air will cover the outer of entire aluminium alloy protection box after the outflow of external air outlet 34 Table bottom surface, and take away the heat of appearance bottom surface.
In order to further accurately monitor the temperature of laser displacement sensor 30 and carry out thermostatic control to it.It is anti-in aluminium alloy It protects box 29 and is equipped with thermostatically-controlled equipment, thermostatically-controlled equipment includes single-chip microcontroller, semiconductor chilling plate and temperature sensor, semiconductor The cold end and pedestal 33 of cooling piece are pasted, and temperature sensor is connected with the input terminal of single-chip microcontroller, single-chip microcomputer output and semiconductor Cooling piece is connected.Semiconductor chilling plate is a kind of heat pump, is divided into hot end and cold end, and the heat dissipation effect in hot end directly affects refrigeration Effect, if the heat dissipation effect in hot end is bad, cold junction temperature is difficult to lower.Therefore, the hot end of cooling piece uses water cooling side Formula is connected to its hot end for carrying out heat-radiating semiconductor cooling piece with water-cooling heat radiating device.Water-cooling heat radiating device include pond, water pump, Water-cooling head, water of radiation row, radiator fan and pipeline, are bonded in one by heat-conducting silicone grease between water-cooling head and semiconductor chilling plate It rises, the cooling water of circulation takes away the heat in cooling piece hot end.
As shown in fig. 6, temperature sensor includes first for the temperature of more accurate measurement laser displacement sensor 30 To the 4th temperature sensor 35-38, the model of temperature sensor can need to use DS18B20, and four temperature sensors are respectively arranged On four side walls of pedestal 33.
Although being particularly shown and describing the present invention, those skilled in the art referring to its exemplary embodiment It should be understood that in the case where not departing from the spirit and scope of the present invention defined by claim form can be carried out to it With the various changes in details.

Claims (9)

1. a kind of device for a wide range of plate thickness measurement of hot rolled strip, it is characterised in that: including rectification roll memorial archway (1) and control System is provided with the upper beam (3) being vertically movable and fixed underbeam (7), upper beam (3) and underbeam (7) on rectification roll memorial archway (1) On be designed with sensor module (8), sensor module (8) includes laser displacement sensor (30) and temperature barrier, thermal protection Device is used to carry out temperature protection to laser displacement sensor (30), the laser displacement sensing being located on upper beam (3) and underbeam (7) Device (30) to strip (10) carry out thickness measure, control system adjust in real time the laser displacement sensor (30) on upper beam (3) away from The distance of strip (10) upper surface, makes it be in the measurement range of laser displacement sensor (30).
2. a kind of device for a wide range of plate thickness measurement of hot rolled strip according to claim 1, it is characterised in that: described The two sides of rectification roll memorial archway (1) generally H-type, the rectification roll memorial archway (1) are designed with vertical guiding axis (2), the upper beam (3) hinged by linear bearing (5) and guiding axis (2).
3. a kind of device for a wide range of plate thickness measurement of hot rolled strip according to claim 1 or 2, it is characterised in that: The control system includes grating scale (6), servo motor (18), industrial personal computer (19), motion control card (20), change-over terminal daughter board (21), servo controller (22), encoder (23), positive limit sensors (24) and negative limit sensors (25), the grating scale (6) vertical setting is fixedly linked in the side of the rectification roll memorial archway (1), the upper beam (3) with upper beam extension plate (4), on Beam extension plate (4) is connected with grating scale (6) sliding, and industrial personal computer (19) is connected with motion control card (20), motion control card (20) Be connected with change-over terminal daughter board (21), servo controller (22) respectively with change-over terminal daughter board (21), servo motor (18), encoder (23), grating scale (6), positive limit sensors (24) are connected with negative limit sensors (25), servo motor (18) and encoder (23) it is connected.
4. a kind of device for a wide range of plate thickness measurement of hot rolled strip according to claim 1, it is characterised in that: described Upper beam (3) and the underbeam (7) are designed with multiple sensor modules (8).
5. a kind of device for a wide range of plate thickness measurement of hot rolled strip according to claim 1, it is characterised in that: described Temperature barrier includes aluminium alloy protection box (29), aeroge (31) and aluminium foil (32), and the outer layer of aluminium alloy protection box (29) is logical It crosses aeroge (31) and aluminium foil (32) to paste, be equipped in aluminium alloy protection box (29) for installing the laser displacement sensor (30) pedestal (33) is provided with optical path slit (34) on the side wall of aluminium alloy protection box (29).
6. a kind of device for a wide range of plate thickness measurement of hot rolled strip according to claim 5, it is characterised in that: described Temperature barrier further includes compressed air line (27), and compressed air line (27) is arranged in the aluminium alloy protection box (29) In, compressed air line (27) is equipped with internal air outlet (26) and external air outlet (27), and internal air outlet (26) is located at described One side of pedestal (33), external air outlet (34) are located at the bottom of the outer wall of the aluminium alloy protection box (29).
7. a kind of device for a wide range of plate thickness measurement of hot rolled strip according to claim 6, it is characterised in that: described Temperature barrier further includes thermostatically-controlled equipment, and thermostatically-controlled equipment is arranged in the aluminium alloy protection box (29), constant temperature control Device processed includes single-chip microcontroller, semiconductor chilling plate and temperature sensor, and the cold end of semiconductor chilling plate and the pedestal (33) are viscous Patch, temperature sensor are connected with the input terminal of single-chip microcontroller, and single-chip microcomputer output is connected with semiconductor chilling plate.
8. a kind of device for a wide range of plate thickness measurement of hot rolled strip according to claim 7, it is characterised in that: described The hot end of semiconductor chilling plate is connected with water-cooling heat radiating device.
9. a kind of device for a wide range of plate thickness measurement of hot rolled strip according to claim 7, it is characterised in that: described Temperature sensor includes first to fourth temperature sensor (35-38), and four temperature sensors are arranged in the pedestal (33) on four side walls.
CN201910512306.8A 2019-06-13 2019-06-13 A kind of device for a wide range of plate thickness measurement of hot rolled strip CN110340159A (en)

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