CN106475426B - Roll surface temperature device for accurately measuring and measurement method - Google Patents
Roll surface temperature device for accurately measuring and measurement method Download PDFInfo
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- CN106475426B CN106475426B CN201510530160.1A CN201510530160A CN106475426B CN 106475426 B CN106475426 B CN 106475426B CN 201510530160 A CN201510530160 A CN 201510530160A CN 106475426 B CN106475426 B CN 106475426B
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Abstract
The invention discloses a kind of roll surface temperature device for accurately measuring, including：Temperature measurer is installed on the bearing block of roll, and the temperature measurer is in contact with the roll surface of the roll, and the temperature measurer keeps relative position constant with the roll surface, the temperature for measuring the roll；Induction heater is installed on the bearing block, and for the temperature measured by the temperature measurer, heating adjustment is carried out to the roll；Programmable controller, the programmable controller are connected with the temperature measurer and the induction heater, for controlling the relative position between the temperature measurer and the roll surface of the roll.To keep the temperature measurer to keep relative position constant with the roll surface, and control the power of the induction heater.The invention also discloses a kind of methods that roll surface temperature accurately measures, and utilize above-mentioned apparatus.It realizes and is accurately controlled to rolling face temperature, ensure the quality of warm-rolling technique.
Description
Technical field
The invention belongs in making steel warm-rolling technique more particularly to a kind of roll surface temperature device for accurately measuring and based on should
The measurement method of device.
Background technology
Certain sheet metals, such as magnesium alloy and kirsite, there are resistances of deformation in cold-rolled process greatly and plasticity is poor
Problem.It is directed to the sheet metal of this characteristic at present, the process of warm-rolling is all made of in rolling.Traditional warm-rolling technique is more
The method preheated using roll, with the progress of rolling, roller temperature reduces, in order to avoid because between sheet metal and roll
The temperature difference causes plank surface and edge cracks occur, improves the lumber recovery of plank, needs to reheat roll, be unfavorable for
Continuous Rolling Production.As the technology and methods of the raising of rolling equipment manufacture level, some roll on-line heatings are constantly gushed
It is existing, it generally requires to measure the temperature of roll in real time when using such technology, judges to be according to the real time temperature of roll
No needs continue to heat roll, to control roller temperature in target temperature range.Therefore, how accurately online
Measuring the real time temperature of roll becomes the key of control roller temperature.
The disclosure of Patent No. CN201310123172.3, CN201110066204.1 and CN201110349952.0
It is middle to propose three kinds of different induction heating apparatuses respectively, online sensing heating is carried out to roll using electromagnetic field, still
These three patents are all only to illustrate the heating desired value of roll, as to how whether detection roller temperature has reached target
Value does not propose specific scheme.
It proposes in the disclosure of Patent No. CN200510086721.X and a kind of heating rod being installed in core of the roll
Method to carry out on-line heating to roll, while arranging a thermocouple in core of the roll, by the temperature for measuring core of the roll
Degree, the temperature of roller surface is speculated further according to the temperature of core of the roll.Not due to the relationship of roller surface and core temperature
Clear, the method intuitively can not accurately react the surface temperature of roll.
A kind of hot double roller of Frequency Induction Heating formula is proposed in the disclosure of Patent No. CN200810088216.2 can
Inverse milling train and milling method during heating survey the surface temperature of roll using infrared radiation thermometer with carrying out real-time online
Amount.It is limited by infrared radiation thermometer own characteristic, perpendicular alignmnet testee surface is had to when using infrared radiation thermometer, for
The installation accuracy of infrared radiation thermometer proposes higher requirement；In addition, for bright or polishing metal surface, infrared measurement of temperature
The measurement error of instrument is larger, and roll generally has bright surface；With greater need for, it is noted that infrared radiation thermometer is by optical system
The part such as system, photodetector, signal amplifier and signal processing, display output forms, during sensing heating, medium-high frequency
Electromagnetic field often signal transmission is interfered.These various factors result in infrared radiation thermometer in actual use
There is larger error in the process.
A kind of online induction heating apparatus of roll is proposed in the disclosure of Patent No. CN201310074864.3, is led to
One temperature sensor of installation near roll is crossed, makes temperature-sensitive contact and the roll contact of temperature sensor, temperature sensor will
Roller temperature is transmitted to control system, and control system controls the open and close of heating coil current.During rolling, roll
Can inevitably occur contacting in ceaselessly rotary state, between temperature sensor and roll loosely or even what is fallen off shows
As this is very unfavorable to the control of roller surface temperature.
In the above patent document, either core of the roll install thermocouple, carried out using infrared radiation thermometer it is contactless
Thermometric or temperature in use sensor, which carry out contact temperature-measuring all, can not carry out the surface temperature of roll accurately to survey in real time
Amount can not carry out closed-loop control using the measuring temperature to the surface temperature of roll.Therefore, it is necessary to develop a kind of method and
Device can accurately measure the surface temperature of roll, so that it is guaranteed that roller surface temperature is in best work always
Temperature range so that warm-rolling produces the progress for capableing of continuous high-efficient.
Invention content
To solve the above problems, roll surface accurate temperature measurement device and side in a kind of steel-making warm-rolling technique of present invention offer
Method can accurately measure the surface temperature of roll.
The present invention provides a kind of roll surface temperature device for accurately measuring, including：
Temperature measurer is installed on the bearing block of roll, and the temperature measurer is in contact with the roll surface of the roll, for measuring
The temperature of the roll；
Induction heater is installed on the bearing block, for the temperature measured by the temperature measurer, is rolled to described
Roller carries out heating adjustment；
Programmable controller, the programmable controller are connected with the temperature measurer and the induction heater, use
Relative position between the control temperature measurer and the roll surface of the roll, and control the power of the induction heater.
Specifically, the temperature measurer includes：
Temperature sensor, the temperature sensor are in contact with the roll surface, and the temperature sensor is compiled with described
Range controller is connected, and the programmable controller is sent to for detecting the roll surface real-time temperature, and by temperature signal；
Control-rod, the control-rod is connected by bindiny mechanism with the temperature sensor, for driving the temperature
The movement of sensor, the control-rod are connected with the programmable controller simultaneously, for receiving and according to described programmable
The displacement control signal that controller transmits drives the temperature sensor to move；And
Ess-strain piece, the ess-strain piece are in contact with the bindiny mechanism, and with the programmable controller phase
Connection is sent for detecting the instant contact force between the temperature measurer and the roll surface, and by the instant contact force signal
To the programmable controller.
Preferably, the temperature measurer further includes shell, for storing the temperature sensor, the spring, the control
Bar and the ess-strain piece.
Preferably, the bindiny mechanism is spring, and one end of the spring is connected with the temperature sensor, the other end
It is connected with the control-rod, the ess-strain piece is arranged between the spring and the control-rod.
Preferably, the control-rod has stepper motor, and the stepper motor is connected with the programmable controller, uses
In the control for receiving the programmable controller.
Preferably, the temperature measurer is integrated in inside the induction heater, for ensureing that the temperature measurer is rolled with described
Roller relative position is constant.
The invention further relates to a kind of roll surface temperature accurate measurement method, based on above-mentioned roll surface temperature device for accurately measuring,
Have following steps：
Standard couple is fixed on the roll surface, and measuring temperature by step 1, calibration before rolling starts, and is adjusted manually
The contact between the temperature measurer and roll surface is saved, readings are consistent with the standard couple for the temperature measured by the temperature measurer
When, the programmable controller records the contact force measured by the ess-strain piece, and is denoted as Standard contact power；
Step 2, dynamic contact force are adjusted, and after rolling starts, the programmable controller is surveyed the ess-strain piece
The instant contact force of amount is compared with the Standard contact power, and is controlled the control-rod according to comparison result and driven the temperature
Spend sensor movement；
Step 3, dynamic temperature are adjusted, and after rolling starts, the programmable controller will be detected according to temperature sensor
The roll surface real-time temperature, adjust the power of the induction heater.
Specifically, step 2 specifically includes following steps：
Step 2.1, the programmable controller obtains the instant contact force that the ess-strain piece is detected；
Step 2.2, the programmable controller compares the instant contact force with the Standard contact power, if described
Instant contact force is more than the Standard contact power, thens follow the steps 2.3, if the instant contact force is less than the Standard contact
Power thens follow the steps 2.4, if the instant contact force is equal to the Standard contact power, returns to step 2.1；
Step 2.3, the programmable controller controls the control-rod and is moved to far from the roll surface direction, to drive
The temperature sensor is moved to far from the roll surface direction；
Step 2.4, the programmable controller controls the control-rod and is moved to close to the roll surface direction, to drive
The temperature sensor is moved to close to the roll surface direction.
Preferably, the control-rod has stepper motor, and the programmable controller controls the stepper motor to control
It makes the control-rod and drives the temperature sensor movement.
Roll surface accurate temperature measurement device and method in a kind of steel-making warm-rolling technique of the present invention, using automatically controlling skill
Art ensures to be in best contact condition between close-coupled temperature measurer and roll always, it is ensured that the temperature value energy that temperature measurer measures
The accurately temperature level of reaction roller surface.Using the roll surface real time temperature that temperature measurer measures as reference value to sensing heating
Device carries out closed-loop control, can guarantee that the surface temperature of roll maintains in target temperature range always.Warm-rolling technique can be stablized, carried
The lumber recovery of high metal plank.Temperature measurer is compact-sized, compact, can be directly integrated in inside induction heater, will not be right
Milling train causes to interfere, and increases the flexibility of milling train operation.Thermometry application range proposed by the present invention is wider, is suitable for appointing
What occasion with relative motion between temperature measurer and testee.
Description of the drawings
Fig. 1 is the stereogram of the roll surface temperature device for accurately measuring of the present invention；
Fig. 2 is the structure diagram of the roll surface temperature device for accurately measuring of the present invention；
Fig. 3 is the structural schematic diagram of the embodiment of temperature measurer in Fig. 1；
Fig. 4 is the structural schematic diagram of the preferred embodiment of the temperature measurer of Fig. 1.
Specific implementation mode
In the following, in conjunction with attached drawing, structure and operation principle to the present invention etc. are further described.
As shown in Fig. 1~Fig. 2, roll surface temperature device for accurately measuring of the invention is mounted on the bearing block 1 of roll 2, packet
Include and contacted with the roll surface of roll 2, the temperature measurer 4 of the roll surface temperature for detecting roll 2, and for according to detection temperature to rolling
The induction heater 3 that roller 2 is heated.In present embodiment, temperature measurer 4 is integrated in inside induction heater 3, is ensured that
Temperature measurer 4 and the relative position of roll 2 are fixed.In addition it is also equipped with programmable controller 10, as shown in Fig. 2, programmable controller
10 are connected with temperature measurer 4 and induction plus survey device 3 simultaneously, are accurately controlled for the temperature detection to temperature measurer 4, same to time control
The rolling mill temperature control system of induction heater 3 processed, to adjust the heating power of induction heater 3.
The structure of temperature measurer 4 is further described in conjunction with Fig. 2~Fig. 3.
Temperature measurer 4 includes temperature sensor 6, and temperature sensor 6 is directly contacted with the roll surface of roll 2, and detection roll surface is instant
Temperature, temperature sensor 6 are connected with programmable controller 10, and the real-time temperature of detection is sent to programmable controller 10.
Control-rod 9 is used to pass through control into behavior displacement action to temperature sensor 6 with the spring 7 as bindiny mechanism
The forward-reverse of bar 9 drives the movement of temperature sensor 6, to influence the contact force of temperature sensor 6 and the roll surface of roll 2.
It is provided with ess-strain piece 8, ess-strain 8 and programmable controller 10 between spring 7 and control-rod 9, measures
The ess-strain amount of spring 7, which levies the instant contact force F between temperature sensor 6 and roll surface, and is by this
When contact force F be sent to programmable controller 10.
Equally, have stepper motor in control-rod 9, be connected with programmable controller 10,10 basis of programmable controller
The instant contact force F, controls the stepper motor of control-rod 9, to drive the movement of temperature sensor 6.
In addition, as shown in figure 4, tester 4 is also equipped with shell 5, for storing temperature inductor 6, spring 7, control-rod 9,
Facilitate the installation of tester 4.
In addition, the invention further relates to a kind of roll surface temperature accurate measurement method, be based on apparatus above, below to this method into
Row is described in detail.
Standard couple is fixed on the roll surface of roll 2, and measuring temperature, hand by step 1, calibration before rolling starts
The dynamic contact adjusted between temperature measurer 4 and roll surface, the temperature measured by the temperature measurer 4 and standard couple can be compiled when readings are consistent
Range controller 10 records the contact force measured by ess-strain piece 8, and is denoted as Standard contact power F0；
Step 2, contact force dynamic regulation, after rolling starts, programmable controller 10 will be measured by ess-strain piece 8
Instant contact force F is compared with Standard contact power F0, and is controlled control-rod according to comparison result and driven temperature sensor movement；
Specifically include following steps：
Step 2.1, programmable controller 10 obtains the instant contact force F1 that ess-strain piece 8 is detected；
Step 2.2, programmable controller 10 compares instant contact force F1 with Standard contact power F0, if instant contact force
More than Standard contact power, F1>F0 thens follow the steps 2.3, if contact force is less than Standard contact power, F1 immediately<F0 then executes step
Rapid 2.4, if contact force is equal to Standard contact power immediately, F1=F0 then returns to step 2.1；
Step 2.3, programmable controller 10 controls control-rod 9 and is moved to far from roll surface direction, to drive temperature sensing
Device 6 is moved to far from roll surface direction；
Step 2.4, programmable controller 10 controls control-rod 9 and is moved to close to roll surface direction, to drive temperature sensing
Device 6 is moved to close to roll surface direction
Step 3, dynamic temperature are adjusted, and after rolling starts, programmable controller 10 will be detected according to temperature sensor 6
Roll surface real-time temperature, adjust induction heater 3 power.
The temperature control system of the control control induction heater 3 of programmable controller 10, measures instant according to temperature measurer 4
Temperature carries out closed loop adjusting to the heating power of induction heater 3, when real-time temperature is higher than target temperature, suitably reduces power supply
Power, and power is then properly increased when real-time temperature is less than target temperature, to ensure, roll surface temperature when Rolling Production
It can maintain in target temperature range always.And then ensure the raising of the stabilization and product lumber recovery of warm-rolling production technology.
Using roll sensing heating roll surface thermometry proposed by the present invention and device, it can be achieved that roll surface temperature
The accurate measurement of degree solves the problems, such as that the roller surface to circling is measured into trip temperature.Use this method and device
The roll surface real time temperature measured is used as carries out closed-loop control with reference to value to induction heater, can ensure that the surface temperature of roll always
It maintains in the target temperature range needed for rolling.Close-coupled temperature measurer 4 is compact-sized, compact, can be directly integrated in sense
It answers inside heater 3, is advantageously implemented the direct motion of metal plate and belt warm-rolling technique and the rolling quality and lumber recovery of metal plate and belt
Raising.In addition, this method and device can apply to the occasion with relative motion between any temperature measurer and testee, tool
Have broad application prospects
More than, schematic description only of the invention, it will be recognized by those skilled in the art that in the work without departing from the present invention
On the basis of making principle, a variety of improvement can be made to the present invention, this is all belonged to the scope of protection of the present invention.
Claims (6)
1. a kind of roll surface temperature accurate measurement method, which is characterized in that be based on a roll surface temperature device for accurately measuring, the roll surface
Accurate temperature measurement device includes：
Temperature measurer is installed on the bearing block of roll, and the temperature measurer is in contact with the roll surface of the roll, the temperature measurer with
The roll surface keeps relative position constant, the temperature for measuring the roll；
Induction heater is installed on the bearing block, for temperature measured by the temperature measurer, to the roll into
Row heating adjustment；
Programmable controller, the programmable controller is connected with the temperature measurer and the induction heater, for controlling
The relative position between the temperature measurer and the roll surface of the roll is made, to keep temperature measurer position opposite with the roll surface
Set power that is constant, and controlling the induction heater；
The temperature measurer includes：
Temperature sensor, the temperature sensor are in contact with the roll surface, and the temperature sensor and the programmable control
Device processed is connected, and the programmable controller is sent to for detecting the roll surface real-time temperature, and by temperature signal；
Control-rod, the control-rod is connected by bindiny mechanism with the temperature sensor, for driving the temperature sensing
The movement of device, the control-rod are connected with the programmable controller simultaneously, for receiving and according to the PLC technology
The displacement control signal that device transmits drives the temperature sensor to move；And
Ess-strain piece, the ess-strain piece is in contact with the bindiny mechanism, and is connected with the programmable controller,
For detecting the instant contact force between the temperature measurer and the roll surface, and the instant contact force signal is sent to described
Programmable controller；
The method has following steps：
Standard couple is fixed on the roll surface, and measuring temperature before rolling starts, adjusts institute manually by step 1, calibration
The contact between temperature measurer and roll surface is stated, the temperature measured by the temperature measurer and the standard couple be when readings are consistent,
The programmable controller records the contact force measured by the ess-strain piece, and is denoted as Standard contact power；
Step 2, dynamic contact force are adjusted, and after rolling starts, the programmable controller will be measured by the ess-strain piece
Instant contact force is compared with the Standard contact power, and controls the control-rod according to comparison result and the temperature is driven to pass
Sensor moves；
Step 3, dynamic temperature are adjusted, and are rolled after starting, the institute that the programmable controller will be detected according to temperature sensor
The real-time temperature for stating roll surface adjusts the power of the induction heater.
2. roll surface temperature accurate measurement method as described in claim 1, which is characterized in that step 2 specifically includes following step
Suddenly：
Step 2.1, the programmable controller obtains the instant contact force that the ess-strain piece is detected；
Step 2.2, the programmable controller compares the instant contact force with the Standard contact power, if described instant
Contact force is more than the Standard contact power, thens follow the steps 2.3, if the instant contact force is less than the Standard contact power,
Step 2.4 is executed, if the instant contact force is equal to the Standard contact power, returns to step 2.1；
Step 2.3, the programmable controller controls the control-rod and is moved to far from the roll surface direction, described in driving
Temperature sensor is moved to far from the roll surface direction；
Step 2.4, the programmable controller controls the control-rod and is moved to close to the roll surface direction, described in driving
Temperature sensor is moved to close to the roll surface direction.
3. roll surface temperature accurate measurement method as described in claim 1, which is characterized in that the temperature measurer further includes shell,
For storing the temperature sensor, the control-rod, the bindiny mechanism and the ess-strain piece.
4. the roll surface temperature accurate measurement method as described in claim 1 or 3, which is characterized in that the bindiny mechanism is spring,
One end of the spring is connected with the temperature sensor, and the other end is connected with the control-rod, the ess-strain piece
It is arranged between the spring and the control-rod.
5. roll surface temperature accurate measurement method as described in claim 1, which is characterized in that the control-rod has stepping electricity
Machine, the stepper motor are connected with the programmable controller, the control for receiving the programmable controller.
6. roll surface temperature accurate measurement method as described in claim 1, which is characterized in that the temperature measurer is integrated in the sense
Heater body is answered, for ensureing that the temperature measurer and the roll relative position are constant.
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| CN201510530160.1A CN106475426B (en) | 2015-08-26 | 2015-08-26 | Roll surface temperature device for accurately measuring and measurement method |
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| CN201510530160.1A CN106475426B (en) | 2015-08-26 | 2015-08-26 | Roll surface temperature device for accurately measuring and measurement method |
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| CN106475426B true CN106475426B (en) | 2018-11-06 |
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| CN112034905B (en) * | 2020-08-21 | 2021-11-16 | 浙江英洛华磁业有限公司 | Automatic temperature rise control method for medium-frequency induction smelting of neodymium iron boron melt |
| CN113319123A (en) * | 2021-06-07 | 2021-08-31 | 燕山大学 | Novel roll surface temperature measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6220749B1 (en) * | 1999-04-02 | 2001-04-24 | Carrier Corporation | Self-adjusting temperature sensor |
| DE10053980A1 (en) * | 2000-10-31 | 2002-05-16 | Gmt Ges Fuer Metallurg Technol | Process for measuring the temperature of working rollers in rolling mills comprises measuring the temperature in an online operation, and acquiring the temperature transmission between the rollers and a temperature sensor |
| CN101486045B (en) * | 2008-01-14 | 2012-06-06 | 哈尔滨工业大学 | Intermediate frequency induction heating type hot double-roll reversing roller and rolling method |
| CN101249512A (en) * | 2008-04-17 | 2008-08-27 | 上海交通大学 | Magnesium alloy sheet material roller milling roller heating system |
| DE102009012904A1 (en) * | 2009-03-12 | 2010-09-16 | Evertz Hydrotechnik Gmbh & Co. Kg | Measuring device for tangential measuring of surface temperature of roller, particularly of working roller, has sensor body which is supported at movably supported extension |
| CN201644510U (en) * | 2010-02-23 | 2010-11-24 | 宝山钢铁股份有限公司 | Roller thermal forming heating control device |
| CN102914387B (en) * | 2012-10-19 | 2014-09-24 | 青岛云路新能源科技有限公司 | Method and device for measuring surface temperature of high-speed rotary crystallizer |
| CN103223417A (en) * | 2013-03-08 | 2013-07-31 | 上海西重所重型机械成套有限公司 | Roller online heating device and heating method |
| CN103240275B (en) * | 2013-05-14 | 2014-05-07 | 吉林大学 | On-line heating device and heating method of magnesium alloy sheet warm rolling rollers |
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