CN201524779U - Straightening-withdrawal machine speed detection processing system of continuous casting machine - Google Patents
Straightening-withdrawal machine speed detection processing system of continuous casting machine Download PDFInfo
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- CN201524779U CN201524779U CN2009202295191U CN200920229519U CN201524779U CN 201524779 U CN201524779 U CN 201524779U CN 2009202295191 U CN2009202295191 U CN 2009202295191U CN 200920229519 U CN200920229519 U CN 200920229519U CN 201524779 U CN201524779 U CN 201524779U
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Abstract
The utility model discloses a straightening-withdrawal machine speed detection processing system of a continuous casting machine, which comprises multiple speed detecting motors, a direct current speed regulator, an operation platform and a programmable logic controller. The programmable logic controller is respectively connected with the multiple speed detecting motors, the direct current speed regulator and the operation platform. The operation platform sends out a selection instruction which contains information of a specified speed detecting motor among the multiple speed detecting motors. The programmable logic controller judges working state of the specified speed detecting motor according to the selection instruction sent by the operation platform, obtains feedback signals according to result of the judgment, and sends out the same to the direct current speed regulator. The speed detection processing system is capable of selecting one of the speed detecting motors as feedback source in an undisturbed manner under the condition of realization of controlling withdrawal speed of a straightening-withdrawal machine, thereby avoiding casting halt accidents.
Description
Technical field
The utility model relates to the straightening motor speed detecting processing system of conticaster.
Background technology
In continuous casting process, the control of the straightening motor speed of conticaster is one of three big key technologies of conticaster, and the pulling rate control level of straightening machine directly influences the output of continuous casting billet and the safety of quality and conticaster control system.The quality of pulling rate control depends on the reliability and the correctness of external detection signal.Obtain the pulling rate checkout equipment of described external detection signal and generally select tachometer generator or encoder for use.Reliable in order to ensure described external detection signal, the whole piece continuous casting line of conticaster generally can use the pulling rate checkout equipment more than three, send the conticaster of dummy ingot on especially, and the production process that could realize sending dummy ingot and time go out hot base is carried out simultaneously.
Be real-time Transmission that realizes signal and the reliable operation that guarantees control device, the straightening motor speed detecting processing system with a plurality of pulling rate checkout equipments has adopted following two kinds of schemes.
First kind of scheme is the corresponding control device of every straightening motor, and the external detection signal that the pulling rate checkout equipment of different straightening motors obtains is introduced corresponding control device, by described control device the pulling rate of described straightening machine is controlled.This scheme can be obtained the external detection signal easily, realizes dynamical feedback control.But because the control device quantity that this scheme adopts is many, so maintenance is big, the cost of investment height.
Second kind of scheme is according to the requirement of production technology and process the straightening motor to be divided into groups, and generally is divided into two groups, and every group of straightening motor selected a control device for use.Every control device can be standby each other, drags all straightening motors.Select different straightening motor pulling rate checkout equipments as feedback sources by multidiameter option switch, then feedback signal is introduced corresponding control device, the pulling rate of described straightening machine is controlled by described control device.Described control device is selected direct-flow controlling device mostly for use, and described pulling rate checkout equipment is generally selected tachometer generator for use.The control device quantity that this scheme adopts is few, and then maintenance is little, and cost of investment is low.But, because this scheme utilizes multidiameter option switch to select feedback sources, therefore can not realize not having disturbance and switch, disconnected production accident such as water takes place easily.
Therefore, be necessary to provide a kind of straightening motor speed detecting processing system of improved conticaster to overcome above-mentioned defective.
The utility model content
The purpose of this utility model provides a kind of straightening motor speed detecting processing system of conticaster, can be under the prerequisite of the pulling rate of realizing control straightening machine, and the tachometer generator as feedback sources is selected in no disturbance, avoids the disconnected accident of watering to take place.
To achieve these goals, the utility model provides a kind of straightening motor speed detecting processing system of conticaster, comprises a plurality of tachometer generators, direct current speeder, operating desk and programmable logic controller (PLC).Described operating desk sends selection instruction, and described selection instruction comprises the information of the tachometer generator of appointment in described a plurality of tachometer generator.Described programmable logic controller (PLC) is connected respectively with described a plurality of tachometer generators, described direct current speeder and described operating desk, the selection instruction that described programmable logic controller (PLC) sends according to described operating desk is judged the duty of the tachometer generator of described appointment, and obtain feedback signal according to the result of described judgement, send the described described direct current speeder that feeds back signal to.
In an embodiment of the present utility model, described programmable logic controller (PLC) comprises command reception module and duty judging treatmenting module.Described command reception module is connected with described operating desk, and described command reception module receives the selection instruction that described operating desk sends.Described duty judging treatmenting module links to each other with described command reception module, described a plurality of tachometer generators and described direct current speeder, the selection instruction that described duty judging treatmenting module receives according to described command reception module is judged the duty of the tachometer generator of described appointment, and the result of described judgement analyzed, result according to described analysis obtains feedback signal, sends the described described direct current speeder that feeds back signal to.
In another embodiment of the present utility model, described duty judging treatmenting module comprises that first judges the submodule and first processing sub.Described first judges that submodule links to each other with described command reception module and described a plurality of tachometer generator, and the selection instruction that described first judge module receives according to described command reception module is judged the duty of the tachometer generator of described appointment.Described first processing sub and described first judges that submodule and described direct current speeder are connected, when the result who judges when described first judge module is normal condition, described first processing sub send described appointment tachometer generator feed back signal to described direct current speeder.
In an embodiment more of the present utility model, described duty judging treatmenting module comprises that also second judges the submodule and second processing sub.Described second judge module and described first judges that submodule and described a plurality of tachometer generator are connected, and when the result of described first judge module judgement was malfunction, the described second judgement submodule was judged the duty of other all tachometer generators.Described second processing sub and described second judges that submodule and described direct current speeder are connected, when described second judges that arbitrary result that submodule is judged is normal condition, described second processing sub send described normal condition tachometer generator feed back signal to described direct current speeder.
In another embodiment of the present utility model, described programmable logic controller (PLC) also comprises armature voltage acquisition module, signal conversion module.Described armature voltage acquisition module is gathered the armature voltage signal of conticaster.Described signal conversion module links to each other with described armature voltage acquisition module, described signal conversion module is converted to the feedback speed signal with the armature voltage signal of described armature voltage acquisition module collection, wherein conversion formula is: n1=Va * α, n1 is the feedback speed value, Va is the armature voltage value, and α is the voltage conversion coefficient.Described duty judging treatmenting module also comprises the 3rd processing sub.Described the 3rd processing sub judges that with described signal conversion module, described second submodule and described direct current speeder are connected, when all results of the described second judgement submodule judgement were malfunction, described the 3rd processing sub sent the feedback speed signal of described signal conversion module conversion to described direct current speeder.
In an embodiment more of the present utility model, described first judges that the submodule and the second judgement submodule include the given signal receiving unit of speed, running status determining unit and feedback signal acquiring unit.The given signal receiving unit of described speed is connected with described operating desk, and the given signal receiving unit of described speed receives the given signal of speed that described operating desk sends.Described running status determining unit is connected with described direct current speeder, and the running status determining unit is determined the running status of described direct current speeder.Described feedback signal acquiring unit is connected with described a plurality of tachometer generators, is used to obtain the feedback signal of current tachometer generator.Described duty determining unit is connected with the given signal receiving unit of described speed, described running status determining unit, described feedback signal acquiring unit, and the feedback signal that running status that the given signal that described duty determining unit receives according to the given signal receiving unit of described speed, described running status determining unit are determined and described feedback signal acquiring unit obtain is determined the duty of described tachometer generator.
In an embodiment more of the present utility model, described first judges that the submodule and the second judgement submodule all also comprise deviation determining unit and deviation time determining unit.Described deviation determining unit links to each other with given signal receiving unit of described speed and described feedback signal acquiring unit, and described deviation determining unit is determined the given signal of speed of the given signal receiving unit reception of described speed and the deviation of the feedback signal that described feedback signal acquiring unit obtains.Described deviation time determining unit links to each other with described deviation determination module, and described deviation time determining unit is determined the time of described deviation determination module sustained deviation.Described duty determining unit links to each other with described deviation determining unit, described deviation time determining unit, and time of determining of the deviation of determining according to described deviation determining unit and described deviation time determining unit is determined the duty of described tachometer generator.
Compared with prior art, the straightening motor speed detecting processing system of the utility model conticaster is selected as the tachometer generator that feeds back by the selection instruction of operating desk, described programmable logic controller (PLC) is judged the duty of the tachometer generator of the conduct feedback that described operating desk is selected, and chooses feedback signal according to the result of described judgement.When the tachometer generator duty of described programmable logic controller (PLC) decision operation platform selection is normal condition, send the direct current speeder that feeds back signal to of this tachometer generator; When the tachometer generator duty of described programmable logic controller (PLC) decision operation platform selection is malfunction, send the direct current speeder that feeds back signal to of other tachometer generators that are in normal operating conditions.Therefore native system can be under the prerequisite of the pulling rate of realizing control straightening machine, and the tachometer generator as feedback sources is selected in no disturbance, avoids the disconnected accident of watering to take place.
By following description also in conjunction with the accompanying drawings, it is more clear that the utility model will become, and these accompanying drawings are used to explain embodiment of the present utility model.
Description of drawings
Fig. 1 is the structured flowchart of the straightening motor speed detecting processing system of the utility model conticaster.
Fig. 2 is the structured flowchart of first judge module of straightening motor speed detecting processing system shown in Figure 1.。
The specific embodiment
With reference now to accompanying drawing, describe embodiment of the present utility model, the similar elements label is represented similar elements in the accompanying drawing.As mentioned above, the utility model provides a kind of straightening motor speed detecting processing system of conticaster, its selection instruction by operating desk is selected the tachometer generator as feedback, described programmable logic controller (PLC) is judged the duty of the tachometer generator of the conduct feedback that described operating desk is selected, and chooses feedback signal according to the result of described judgement.Native system can be under the prerequisite of the pulling rate of realizing control straightening machine, and the tachometer generator as feedback sources is selected in no disturbance, avoids the disconnected accident of watering to take place.
The fan-shaped section of the conticaster of present embodiment has 17 sections.Wherein the 1st section to the 5th section is one group, is called bending section, and the 6th section to the 17th section is one group, is called straightway.As shown in Figure 1, the straightening motor speed detecting processing system of described conticaster comprises a plurality of tachometer generators, operating desk 200, programmable logic controller (PLC) (PLC, Programmable logic Controller) 400 and direct current speeder 300.Described tachometer generator comprises the tachometer generator 110 that is positioned at the 2nd section and the 5th section tachometer generator 120, and is positioned at the 9th section tachometer generator 130, the 13rd section tachometer generator 140, the 17th section tachometer generator 150.
Described operating desk 200 sends selection instruction, and described selection instruction comprises the information of the tachometer generator of appointment in described a plurality of tachometer generator 110,120,130,140,150.Operating desk is selected the tachometer generator as feedback, and for example tachometer generator 110, and this selection instruction is sent to described programmable logic controller (PLC) 400.The signal that described tachometer generator 110,120,130,140,150 sends is 0 to 60V, and corresponding rotating speed is 0 to 1000 rev/min, described signal through divider resistance (10K/50K) dividing potential drop after, become 0 to 10V.
Described programmable logic controller (PLC) 400 is connected respectively with described a plurality of tachometer generators 110,120,130,140,150, described direct current speeder 300 and described operating desk 100, the selection instruction that described programmable logic controller (PLC) 400 sends according to described operating desk 200 is judged the duty (can describe in detail below the judgement principle) of the tachometer generator 110 of described appointment, and obtain feedback signal according to the result of described judgement, send the described described direct current speeder that feeds back signal to.When described programmable logic controller (PLC) 400 judges that tachometer generator 110 duties are normal condition, send the direct current speeder that feeds back signal to of tachometer generator 110; When described programmable logic controller (PLC) 400 judges that tachometer generator 110 duties are malfunction, send the direct current speeder that feeds back signal to of other tachometer generators that are in normal operating conditions.
Described programmable logic controller (PLC) 400 comprises command reception module 410, duty judging treatmenting module 420, armature voltage acquisition module 430 and signal conversion module 440.
Described command reception module 410 is connected with described operating desk 200, and described command reception module 410 receives the instruction of the selection tachometer generator 110 of described operating desk 200 transmissions as feedback.
Described duty judging treatmenting module 420 links to each other with described command reception module 410, described a plurality of tachometer generators 110,120,130,140,150 and described direct current speeder 300, the selection instruction that described duty judging treatmenting module 420 receives according to described command reception module 410 is judged the duty of tachometer generator 110, and the result of described judgement analyzed, result according to described analysis obtains feedback signal, sends the described described direct current speeder 300 that feeds back signal to.
Described duty judging treatmenting module 420 comprises that first judges submodule 421, first processing sub 422, the second judgement submodule 431 and second processing sub 432, the 3rd processing sub 433.
Described first judges that submodule 421 links to each other with described command reception module 410 and described a plurality of tachometer generator 110,120,130,140,150, and the selection instruction that described first judge module 421 receives according to described command reception module 410 is judged the duty of tachometer generator 110.Be appreciated that ground, if the selection instruction that operating desk 200 sends is with the instruction of tachometer generator 120 as feedback, then described first judge module 421 is judged the duty of tachometer generator 120, so analogizes.
Described first processing sub 422 and described first judges that submodule 421 and described direct current speeder 300 are connected, when described first judge module 421 judged that the duty of tachometer generator 110 is normal condition, described first processing sub 422 sent the described direct current speeder 300 that feeds back signal to of tachometer generator 110.
Described second judge module 431 and described first judges that submodule 421 and described a plurality of tachometer generator 110,120,130,140,150 are connected, when described first judge module 421 judges that the duty of tachometer generator 110 is malfunction, described second judges fault-signal that submodule 431 sends tachometer generators 110 to described operating desk 200, and judges the duty of other all tachometer generators 120,130,140,150.Particularly, described second judges submodule 431 selection next tachometer generators (any one in the tachometer generator 120,130,140,150), and the tachometer generator to described selection carries out judgment processing simultaneously, so repeatedly, till finding a normal tachometer generator
Described second processing sub 432 and described second judges that submodule 431 and described direct current speeder 300 are connected, when described second judges that arbitrary result that submodule 431 is judged be normal condition, the tachometer generator of the described normal condition of described second processing sub, 432 transmissions feed back signal to described direct current speeder 300.
Described armature voltage acquisition module 430 is gathered the armature voltage signal of conticaster.
Described signal conversion module 440 links to each other with described armature voltage acquisition module 430, the armature voltage signal that described signal conversion module 440 is gathered described armature voltage acquisition module 430 is converted to the feedback speed signal, wherein conversion formula is: n1=Va * α, n1 is the feedback speed value, Va is the armature voltage value, and α is the voltage conversion coefficient.
Described the 3rd processing sub 433 judges that with described signal conversion module 440, described second submodule 431 and described direct current speeder 300 are connected, when all results of the described second judgement submodule 431 judgements are malfunction (if can not find normal tachometer generator), described the 3rd processing sub 433 sends the feedback speed signal of described signal conversion module 440 conversions to described direct current speeder 300, to keep operation, guarantee that this casting cycle can normal termination.
Particularly, with reference to figure 2, described first judges that the submodule 421 and the second judgement submodule 431 include the given signal receiving unit 610 of speed, running status determining unit 620, feedback signal acquiring unit 630, deviation determining unit 650, deviation time determining unit 660 and duty determining unit 640.
The given signal receiving unit 610 of described speed is connected with described operating desk 200, the given signal receiving unit 610 of described speed receives the given signal SP of speed that described operating desk 200 sends, according to the given signal of described speed described direct current speeder 300 is carried out logical controlling and speed control.What need proposition is, the given signal SP of 400 pairs of described speed of described programmable logic controller (PLC) carries out digital-to-analog (D/A) conversion, and the given signal of the speed after the described conversion sent to direct current speeder 300, as the given SP of the speed of direct current speeder 300, thereby control by the pulling rate of 300 pairs of described straightening machines of described direct current speeder.
Described running status determining unit 620 is connected with described direct current speeder 300, and described running status determining unit 620 is determined the running status of described direct current speeder 300.
Described feedback signal acquiring unit 630 is connected with described a plurality of tachometer generators 110,120,130,140,150, is used to obtain the feedback signal of current tachometer generator.For example, when the duty of tachometer generator 110 was judged, described feedback signal acquiring unit 630 obtained the feedback signal of tachometer generator 110.
Described deviation determining unit 650 links to each other with given signal receiving unit 610 of described speed and described feedback signal acquiring unit 630, and described deviation determining unit 650 is determined the given signal of speed of given signal receiving unit 610 receptions of described speed and the deviation of the feedback signal that described feedback signal acquiring unit 630 obtains.
Described deviation time determining unit 660 links to each other with described deviation determination module 650, and described deviation time determining unit 660 is determined the time of described deviation determining unit 650 sustained deviations.
Described duty determining unit 640 is connected with the given signal receiving unit 610 of described speed, running status determining unit 620, feedback signal acquiring unit 630, deviation determining unit 650 and deviation time determining unit 660.
The feedback signal that the given signal that described duty determining unit 640 receives according to the given signal receiving unit 610 of described speed, the running status that described running status determining unit 620 is determined and described feedback signal acquiring unit 630 obtain is determined the duty of described tachometer generator.When the given SP of speed is not less than 0.2 meter per second (SP 〉=0.2 meter per second) and direct current speeder 300 and is moving (F=1),, judge that then broken string or stall fault take place this tachometer generator if tachometer generator feedback signal PV is 0 (PV≤0.2 meter per second).In addition, times of determining of the deviation determined according to described deviation determining unit 650 of described duty determining unit 640 and described deviation time determining unit 660 are determined the duty of described tachometer generator.When the deviation of feedback signal PV and given signal SP 2% (| (SP-PV)/SP|＞2%) greater than given signal, and described deviation surpasses the time (t＞t1 that is provided with, t1 generally elects 3 seconds as) time, illustrate that the mechanical connection of tachometer generator and transmission mechanism is insecure or alignment deviation is excessive, cause skidding, judge that then the excursions on feedback fault has taken place this tachometer generator.Non-above-mentioned two kinds of situations, described duty determining unit 640 judges that the duty of described tachometer generator is normal.
What need to propose is, described duty judgment processing submodule 420 can also comprise pretreatment module, and described pretreatment module is connected with described command reception module 410 and described a plurality of tachometer generator 110,120,130,140,150.Described pretreatment module receives the signal after tachometer generator 110 dividing potential drops, and described signal carried out analog/digital (A/D) conversion, and then the signal after numeral/analog-converted carried out up and down amplitude limit, for example, the pulling rate scope of straightening machine is 0 to 2.5 meter/minute, and the given pulling rate of the permission of described pretreatment module is 0.2 to 2.4 meter/minute.Then when given pulling rate less than 0.2 meter/timesharing, described pretreatment module is made zero-speed and is handled, when given pulling rate greater than 2.4 meters/timesharing, described pretreatment module is 2.4 meters/minute with described given pulling rate amplitude limit.Described first judges that submodule 421 and second judges that submodule 431 all judges the duty that signal is input to the tachometer generator 110 of described pretreatment module.
As seen from the above, the straightening motor speed detecting processing system of present embodiment conticaster is selected as the tachometer generator that feeds back by selection 200 instructions of operating desk, described programmable logic controller (PLC) 400 is judged the duty of the tachometer generator of the conduct feedback that described operating desk 200 is selected, and chooses feedback signal according to the result of described judgement.When the tachometer generator duty of described programmable logic controller (PLC) 400 decision operation platforms 200 selections is normal condition, send the direct current speeder that feeds back signal to of this tachometer generator; When the tachometer generator duty of described programmable logic controller (PLC) 400 decision operation platforms 200 selections is malfunction, send the direct current speeder that feeds back signal to of other tachometer generators that are in normal operating conditions; Judge the tachometer generator that does not have normal operating conditions when described programmable logic controller (PLC) 400, then send feedback speed signal through the conversion of armature voltage signal to direct current speeder 300.Therefore native system can be under the prerequisite of the pulling rate of realizing control straightening machine, and the tachometer generator as feedback sources is selected in no disturbance, avoids the disconnected accident of watering to take place.
Be appreciated that ground, though the tachometer generator of the conduct that operating desk 200 is chosen in present embodiment feedback is 110, other tachometer generators 120,130,140,150 also are fine, when choosing other tachometer generators, operation principle of the present utility model is similar, does not repeat them here.
Abovely the utility model is described, but the utility model is not limited to the embodiment of above announcement, and should contains various modification, equivalent combinations of carrying out according to essence of the present utility model in conjunction with most preferred embodiment.
Claims (7)
1. the straightening motor speed detecting processing system of a conticaster comprises a plurality of tachometer generators and direct current speeder, it is characterized in that, also comprises:
Operating desk, described operating desk sends selection instruction, and described selection instruction comprises the information of the tachometer generator of appointment in described a plurality of tachometer generator; And
Programmable logic controller (PLC), described programmable logic controller (PLC) is connected respectively with described a plurality of tachometer generators, described direct current speeder and described operating desk, the selection instruction that described programmable logic controller (PLC) sends according to described operating desk is judged the duty of the tachometer generator of described appointment, and obtain feedback signal according to the result of described judgement, send the described described direct current speeder that feeds back signal to.
2. the straightening motor speed detecting processing system of conticaster as claimed in claim 1 is characterized in that described programmable logic controller (PLC) comprises:
The command reception module, described command reception module is connected with described operating desk, and described command reception module receives the selection instruction that described operating desk sends; And
The duty judging treatmenting module, described duty judging treatmenting module links to each other with described command reception module, described a plurality of tachometer generators and described direct current speeder, the selection instruction that described duty judging treatmenting module receives according to described command reception module is judged the duty of the tachometer generator of described appointment, and the result of described judgement analyzed, result according to described analysis obtains feedback signal, sends the described described direct current speeder that feeds back signal to.
3. the straightening motor speed detecting processing system of conticaster as claimed in claim 2 is characterized in that, described duty judging treatmenting module comprises:
First judges submodule, described first judges that submodule links to each other with described command reception module and described a plurality of tachometer generator, and the selection instruction that described first judge module receives according to described command reception module is judged the duty of the tachometer generator of described appointment;
First processing sub, described first processing sub and described first judges that submodule and described direct current speeder are connected, when the result who judges when described first judge module is normal condition, described first processing sub send described appointment tachometer generator feed back signal to described direct current speeder.
4. the straightening motor speed detecting processing system of conticaster as claimed in claim 3 is characterized in that, described duty judging treatmenting module also comprises:
Second judges submodule, described second judge module and described first judges that submodule and described a plurality of tachometer generator are connected, when the result of described first judge module judgement was malfunction, the described second judgement submodule was judged the duty of other all tachometer generators; And
Second processing sub, described second processing sub and described second judges that submodule and described direct current speeder are connected, when described second judges that arbitrary result that submodule is judged is normal condition, described second processing sub send described normal condition tachometer generator feed back signal to described direct current speeder.
5. the straightening motor speed detecting processing system of conticaster as claimed in claim 4 is characterized in that described programmable logic controller (PLC) also comprises:
The armature voltage acquisition module, described armature voltage acquisition module is gathered the armature voltage signal of conticaster; And
Signal conversion module, described signal conversion module links to each other with described armature voltage acquisition module, described signal conversion module is converted to the feedback speed signal with the armature voltage signal of described armature voltage acquisition module collection, wherein conversion formula is: n1=Va * α, n1 is the feedback speed value, Va is the armature voltage value, and α is the voltage conversion coefficient
Then, described duty judging treatmenting module also comprises:
The 3rd processing sub, described the 3rd processing sub judges that with described signal conversion module, described second submodule and described direct current speeder are connected, when all results of the described second judgement submodule judgement were malfunction, described the 3rd processing sub sent the feedback speed signal of described signal conversion module conversion to described direct current speeder.
6. the straightening motor speed detecting processing system of conticaster as claimed in claim 5 is characterized in that, described first judges that the submodule and the second judgement submodule include:
The given signal receiving unit of speed, the given signal receiving unit of described speed is connected with described operating desk, and the given signal receiving unit of described speed receives the given signal of speed that described operating desk sends;
The running status determining unit, described running status determining unit is connected with described direct current speeder, and described running status determining unit is determined the running status of described direct current speeder;
The feedback signal acquiring unit, described feedback signal acquiring unit is connected with described a plurality of tachometer generators, is used to obtain the feedback signal of current tachometer generator; And
The duty determining unit, described duty determining unit is connected with the given signal receiving unit of described speed, described running status determining unit, described feedback signal acquiring unit, and the feedback signal that running status that the given signal that described duty determining unit receives according to the given signal receiving unit of described speed, described running status determining unit are determined and described feedback signal acquiring unit obtain is determined the duty of described tachometer generator.
7. the straightening motor speed detecting processing system of conticaster as claimed in claim 6 is characterized in that, described first judges that the submodule and the second judgement submodule all also comprise:
The deviation determining unit, described deviation determining unit links to each other with given signal receiving unit of described speed and described feedback signal acquiring unit, and described deviation determining unit is determined the given signal of speed of the given signal receiving unit reception of described speed and the deviation of the feedback signal that described feedback signal acquiring unit obtains;
Deviation time determining unit, described deviation time determining unit links to each other with described deviation determination module, and described deviation time determining unit is determined the time of described deviation determining unit sustained deviation,
Then, described duty determining unit links to each other with described deviation determining unit, described deviation time determining unit, and the time that deviation that described duty determining unit is determined according to described deviation determining unit and described deviation time determining unit are determined is determined the duty of described tachometer generator.
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| CN2009202295191U CN201524779U (en) | 2009-11-06 | 2009-11-06 | Straightening-withdrawal machine speed detection processing system of continuous casting machine |
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| CN2009202295191U CN201524779U (en) | 2009-11-06 | 2009-11-06 | Straightening-withdrawal machine speed detection processing system of continuous casting machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102398006A (en) * | 2010-09-15 | 2012-04-04 | 鞍钢股份有限公司 | Device and method for detecting speed of continuous casting blank |
| CN103454109A (en) * | 2013-09-03 | 2013-12-18 | 武汉钢铁(集团)公司 | Withdrawal and straightening force fault diagnosis method of sector segment of continuous casting machine |
| CN103464710A (en) * | 2012-06-08 | 2013-12-25 | 宝山钢铁股份有限公司 | Control method for keeping insertion position of dummy bar |
| CN113084114A (en) * | 2021-03-11 | 2021-07-09 | 邯郸钢铁集团有限责任公司 | System for detecting running state of working roll of continuous casting machine on line and detection method thereof |
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2009
- 2009-11-06 CN CN2009202295191U patent/CN201524779U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398006A (en) * | 2010-09-15 | 2012-04-04 | 鞍钢股份有限公司 | Device and method for detecting speed of continuous casting blank |
| CN103464710A (en) * | 2012-06-08 | 2013-12-25 | 宝山钢铁股份有限公司 | Control method for keeping insertion position of dummy bar |
| CN103464710B (en) * | 2012-06-08 | 2015-09-23 | 宝山钢铁股份有限公司 | A kind of dummy bar insertion position retentive control method |
| CN103454109A (en) * | 2013-09-03 | 2013-12-18 | 武汉钢铁(集团)公司 | Withdrawal and straightening force fault diagnosis method of sector segment of continuous casting machine |
| CN103454109B (en) * | 2013-09-03 | 2015-12-23 | 武汉钢铁(集团)公司 | Continuous casting machine fan-shaped segment straightening power method for diagnosing faults |
| CN113084114A (en) * | 2021-03-11 | 2021-07-09 | 邯郸钢铁集团有限责任公司 | System for detecting running state of working roll of continuous casting machine on line and detection method thereof |
| CN113084114B (en) * | 2021-03-11 | 2022-05-20 | 邯郸钢铁集团有限责任公司 | System for detecting running state of working roll of continuous casting machine on line and detection method thereof |
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