CN102133633B - Switching mechanism for intermediate tank stopper rod of continuous casting machine - Google Patents
Switching mechanism for intermediate tank stopper rod of continuous casting machine Download PDFInfo
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- CN102133633B CN102133633B CN 201110100249 CN201110100249A CN102133633B CN 102133633 B CN102133633 B CN 102133633B CN 201110100249 CN201110100249 CN 201110100249 CN 201110100249 A CN201110100249 A CN 201110100249A CN 102133633 B CN102133633 B CN 102133633B
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- stopper rod
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Abstract
The invention discloses a switching mechanism for an intermediate tank stopper rod of a continuous casting machine. The switching mechanism comprises a mechanism base, a plug rod, an upper plug rod guide seat, a lower plug rod guide seat, a manual operating rod, a plug rod arm adjusting nut, a lifting cross arm, a stopper rod and a stopper rod lead screw nut; a lower servo electric cylinder support is arranged on the lower plug rod guide seat, an upper servo electric cylinder support is arranged at the middle position of the plug rod, and servo electric cylinders are arranged on the lower servo electric cylinder support and the upper servo electric cylinder support; and a lower support is arranged on the mechanism base, an upper rod is arranged on the plug rod, helical spring balancing mechanisms are arranged on the upper support and the lower support, and lifting balance of the stopper rod and the mechanism is adjusted through a balancing force adjusting nut. The stopper rod is balanced by adjusting the pre-tightening force of helical springs in the switching mechanism, so the operation is convenient and labor-saving; and meanwhile, the switching operation of the stopper rod is reliable, the operation is accurate, the steel flow control precision is improved, the molten steel level of a crystallizer is stable, and billet quality accident and production accident caused by instability of the molten steel level are reduced.
Description
Technical field
The present invention relates to the continuous casting system in the smelting iron and steel, especially relate to a kind of switching mechanism of conticaster pans stopper.
Background technology
Existing conticaster pans stopper switching mechanism adds counterweight at manual joystick and comes the balance stopper to lay particular stress on, has only manual operation function, in use, can there be following defective: 1, because every cover pans stopper switching mechanism is in processing, exist error to cause the lifting resistance can not be equal fully in the installation, and in use because situations such as deformation have also caused the variation of the lifting resistance of mechanism, stopper is laid particular stress on by adding counterweight and is adjusted balance in practical operation, the one, inconvenient, the 2nd, bad control, operating personnel are by manually lifting, when pressing manual joystick to drive the stopper lifting, often feel to require great effort very much, labour intensity is big; 2, owing to pans stopper switching mechanism operation effort, the stopper control accuracy is low, causes steel stream unstable, and crystallizer molten steel surface fluctuates big, and the slab quality instability easily causes the generation of bleed-out accident, brings great hidden danger for operator's personal safety.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of conticaster pans stopper switching mechanism at problems of the prior art, its objective is and satisfy manually control and the switching of control pans stopper automatically, effectively improve steel current control precision simultaneously, make crystallizer molten steel surface stable, improve slab quality.
Technical scheme of the present invention is this kind conticaster pans stopper switching mechanism, comprise on mechanism base, stopper rod, the stopper rod that guide holder under guide holder, the stopper rod, manual joystick, stopper rod arm adjust nut, lifting transverse arm, stopper and stopper feed screw nut, be positioned at that guide holder is provided with the servo electric jar undersetting under the described stopper rod, be provided with the servo electric jar upper bracket in the centre position of stopper rod, servo electric jar is installed on servo electric jar undersetting and the servo electric jar upper bracket; Be positioned at described mechanism base and be provided with undersetting, be positioned at described stopper rod and be provided with upper bracket, the helical spring balanced controls are installed on upper bracket and the undersetting, and adjust the balance that nut is adjusted stopper and mechanism's lifting by the equilibrant force that is positioned at helical spring balanced controls top; Described stopper switching mechanism also comprises Stopper Auto Control System, Stopper Auto Control System comprises that eddy current sensor, instrument, the other control box of machine, industrial computer, system PLC, plug handful mechanism, servo electric jar, digit driver constitute, eddy current sensor is installed in the top of crystallizer, electromagnetic signal in the eddy current sensor produces vortex flow on the molten steel surface, and acts on eddy current sensor generation induced-current; Instrument is carried out the filtering processing to the signal of eddy current sensor induction, gather useful signal, through analog-to-digital conversion, calculate and export the voltage and current signal that can represent liquid level, send the PLC of system to, system PLC acts on digit driver by various information are carried out integrated treatment, the control servo electric jar is regulated the stopper position.
The size of described sensor sensing electric current changes with the variation of molten steel surface to the distance of sensor base.
Be processed with thread on the described stopper rod, sector is installed on the bearing that welds mutually with mechanism base, and the thread engagement on sector and the stopper rod presses manual joystick to make sector rotate the lifting of drive stopper rod by lifting, and realizes that stopper opens and closes up and down.
The axis direction of the axis direction of described servo electric jar and helical spring balanced controls is all parallel with the axis direction of stopper rod.
Described servo electric jar undersetting is welded under the stopper rod on the guide holder, and described servo electric jar upper bracket is welded on the stopper rod.
The endoporus of guide holder is provided with keyway under the described stopper rod, and stopper rod is provided with the anti-key that reverses that matches with this keyway, and anti-reverses key and this keyway is slidingly matched.
A kind of conticaster pans stopper switching mechanism with above-mentioned special construction has the following advantages:
1, this kind conticaster pans stopper switching mechanism can be realized manually control and control two kinds of functions automatically, the stopper on-off action is reliable, operation precisely, effectively raise steel current control precision, make crystallizer molten steel surface stable, reduced slab quality accident and production accident that molten steel face instability causes.
2, this kind conticaster pans stopper switching mechanism comes the balance stopper by helical spring balanced controls and equilibrant force adjustment nut adjustment helical spring pretightning force, and is easy to operate, laborsaving.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is structural representation I of the present invention.
Fig. 2 is structural representation II of the present invention.
Fig. 3 is the schematic diagram of Stopper Auto Control System among the present invention.
Fig. 4 is the installation site schematic diagram of eddy current sensor among the present invention.
In Fig. 1-4,1: manual joystick; 2: the servo electric jar undersetting; 3: guide holder under the stopper rod; 4: the anti-key that reverses; 5: sector; 6: stopper rod; 7: the servo electric jar upper bracket; 8: guide holder on the stopper rod; 9: the stopper rod arm is adjusted nut; 10: the lifting transverse arm; 11: the stopper rod feed screw nut; 12: retaining mechanism; 13: mechanism base; 14: the helical spring balanced controls; 15: the equilibrant force guiding mechanism; 16: stopper; 17: servo electric jar; 18: eddy current sensor; 19: crystallizer; 20: middle bag.
The specific embodiment
By the combination of structure shown in Fig. 1-4 as can be known, this kind conticaster pans stopper switching mechanism comprises on mechanism base 13, stopper rod 6, the stopper rod that guide holder 3 under guide holder 8, the stopper rod, manual joystick 1, stopper rod arm adjust nut 9, lifting transverse arm 10, stopper 16 and stopper feed screw nut 11, be positioned at that guide holder 3 is provided with servo electric jar undersetting 2 under the stopper rod, be provided with servo electric jar upper bracket 7 in the centre position of stopper rod 6, servo electric jar 17 is installed on servo electric jar undersetting 2 and the servo electric jar upper bracket 7; Be positioned at mechanism base 13 and be provided with undersetting, be positioned at stopper rod 6 and be provided with upper bracket, helical spring balanced controls 14 are installed on upper bracket and the undersetting, and adjust the balance that nut 15 is adjusted stopper 16 and mechanism's lifting by the equilibrant force that is positioned at helical spring balanced controls 14 tops; The stopper switching mechanism also comprises Stopper Auto Control System, Stopper Auto Control System comprises that eddy current sensor 18, instrument, the other control box of machine, industrial computer, system PLC, plug handful mechanism, servo electric jar 17, digit driver constitute, eddy current sensor 18 is installed in the top of crystallizer 19, electromagnetic signal in the eddy current sensor 18 produces vortex flow on the molten steel surface, and acting on sensor generation induced-current, the size of sensor sensing electric current changes with the variation of molten steel surface to the distance of sensor base; Instrument is carried out the filtering processing to the signal of eddy current sensor 18 inductions, gather useful signal, through analog-to-digital conversion, calculate and export the voltage and current signal that can represent liquid level, send the PLC of system to, system PLC acts on digit driver by various information are carried out integrated treatment, the control servo electric jar is regulated the stopper position.
Be processed with thread on the stopper rod 6, sector 5 is installed on the bearing that welds mutually with mechanism base 13, and the thread engagement on sector 5 and the stopper rod 6 presses manual joystick 1 to make sector 5 rotate 6 liftings of drive stopper rods by lifting, and the realization stopper opens and closes up and down; Servo electric jar undersetting 2 is welded under the stopper rod on the guide holder 3, and servo electric jar upper bracket 7 is welded on the stopper rod 6, and the axis direction of the axis direction of servo electric jar 17 and helical spring balanced controls 14 is all parallel with the axis direction of stopper rod 6; The endoporus of guide holder 3 is provided with keyway under the stopper rod, and stopper rod 6 is provided with the anti-key 4 that reverses that matches with this keyway, and the anti-key 4 that reverses is slidingly matched with this keyway.
This kind conticaster pans stopper switching mechanism detailed process of control automatically is: before the production, be before pans also do not toast, pans Stopper opening and closing mechanism is installed on the middle tank body, and adjust the height of stopper 16, by artificial pressure, raise one's hand and move control stick 1, stopper rod 6 knee-actions nimbly and freely, when watering the first stove molten steel at every turn, at first adopt manually control to water steel, treat after a few minutes that the molten steel face increases to the normal position, when pulling rate is basicly stable, eddy current sensor 18 is installed to the top of crystallizer 19, and servo electric jar 17 is installed in the pans Stopper opening and closing mechanism, opens automatic control system, servo electric jar 17 will drive stopper rod 6 vertically this moment, regulate the position of stopper, 20 molten steel flows that inject in the crystallizer 19 are therefrom wrapped in control, to reach the stable of molten steel face.
The realization principle of the process of control automatically is: eddy current sensor 18 is installed in the top of crystallizer 19, and the electromagnetic signal in the eddy current sensor 18 produces vortex flow on the molten steel surface, and acts on eddy current sensor 18 generation induced-currents; The faradic size that eddy current sensor 18 produces changes with the distance of molten steel surface to eddy current sensor 18 bottoms; The induced signal that instrument produces eddy current sensor 18 carries out filtering to be handled, and gathers useful signal, and through analog-to-digital conversion, calculating and output can represent the voltage and current signal of liquid level, send the PLC of system to; System PLC acts on digit driver by various information are carried out integrated treatment, control servo electric jar 17, the position of adjusting stopper.By the control to the stopper aperture, regulate and therefrom wrap 20 molten steel flows that inject in the crystallizer 19, reach the purpose of stablizing liquid steel level height in the crystallization control device 19, thereby realize permanent pulling rate, constant level automatic steel-pouring.By industrial computer, can send various warning messages simultaneously, realize multi-functional human-computer dialogue, monitor the level control situation in real time.
This kind conticaster pans stopper switching mechanism manually detailed process of control is: at first when watering the first stove molten steel, adopt manually control to water steel at every turn; Secondly under the situation that control has fault normally not use automatically, produce in order to continue, must adopt manual control immediately, dismounting servo electric jar 17, remove automatic control equipment, by artificial pressure, the moving control stick 1 of raising one's hand sector 5 is rotated simultaneously, make stopper rod 6 realize control to the stopper aperture vertically by sector 5 and tooth bar engagement on the stopper rod 6, therefrom wrap 20 molten steel flows that inject in the crystallizers 19 thereby regulate.
This kind conticaster pans stopper switching mechanism can be realized manually control and control two kinds of functions automatically, the stopper on-off action is reliable, operation precisely, effectively raise steel current control precision, make crystallizer molten steel surface stable, reduced slab quality accident and production accident that molten steel face instability causes; Simultaneously, adjust nut adjustment helical spring pretightning force by helical spring balanced controls and equilibrant force and come the balance stopper, easy to operate, laborsaving.
Claims (6)
1. conticaster pans stopper switching mechanism, comprise mechanism base (13), stopper rod (6), guide holder on the stopper rod (8), guide holder under the stopper rod (3), manual joystick (1), the stopper rod arm is adjusted nut (9), lifting transverse arm (10), stopper (16) and stopper feed screw nut (11), it is characterized in that: be positioned at guide holder under the described stopper rod (3) and be provided with servo electric jar undersetting (2), be provided with servo electric jar upper bracket (7) in the centre position of stopper rod (6), servo electric jar (17) is installed on servo electric jar undersetting (2) and the servo electric jar upper bracket (7); Be positioned at described mechanism base (13) and be provided with undersetting, be positioned at described stopper rod (6) and be provided with upper bracket, helical spring balanced controls (14) are installed on upper bracket and the undersetting, and adjust the balance that nut (15) is adjusted stopper (16) and mechanism's lifting by the equilibrant force that is positioned at helical spring balanced controls (14) top; Described stopper switching mechanism also comprises Stopper Auto Control System, Stopper Auto Control System comprises that eddy current sensor (18), instrument, the other control box of machine, industrial computer, system PLC, plug handful mechanism, servo electric jar (17), digit driver constitute, eddy current sensor (18) is installed in the top of crystallizer (19), electromagnetic signal in the eddy current sensor (18) produces vortex flow on the molten steel surface, and acts on sensor generation induced-current; Instrument is carried out the filtering processing to the signal of eddy current sensor (18) induction, gather useful signal, through analog-to-digital conversion, calculate and export the voltage and current signal that can represent liquid level, send the PLC of system to, system PLC acts on digit driver by the voltage and current signal is carried out integrated treatment, the control servo electric jar is regulated the stopper position.
2. a kind of conticaster pans stopper switching mechanism according to claim 1 is characterized in that: the size of described sensor sensing electric current changes with the variation of molten steel surface to the distance of sensor base.
3. a kind of conticaster pans stopper switching mechanism according to claim 2, it is characterized in that: described stopper rod is processed with thread on (6), sector (5) is installed on the bearing that welds mutually with mechanism base (13), thread engagement on sector (5) and the stopper rod (6), press manual joystick (1) to make sector (5) rotate the lifting of drive stopper rod (6) by lifting, realize that stopper opens and closes up and down.
4. according to the described a kind of conticaster pans stopper switching mechanism of each claim of claim 1-3, it is characterized in that: the axis direction of the axis direction of described servo electric jar (17) and helical spring balanced controls (14) is all parallel with the axis direction of stopper rod (6).
5. a kind of conticaster pans stopper switching mechanism according to claim 4, it is characterized in that: described servo electric jar undersetting (2) is welded on the guide holder under the stopper rod (3), and described servo electric jar upper bracket (7) is welded on the stopper rod (6).
6. a kind of conticaster pans stopper switching mechanism according to claim 5, it is characterized in that: the endoporus of guide holder under the described stopper rod (3) is provided with keyway, stopper rod (6) is provided with the anti-key (4) that reverses that matches with this keyway, and the anti-key (4) that reverses is slidingly matched with this keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110100249 CN102133633B (en) | 2011-04-21 | 2011-04-21 | Switching mechanism for intermediate tank stopper rod of continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110100249 CN102133633B (en) | 2011-04-21 | 2011-04-21 | Switching mechanism for intermediate tank stopper rod of continuous casting machine |
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| CN102133633A CN102133633A (en) | 2011-07-27 |
| CN102133633B true CN102133633B (en) | 2013-08-07 |
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| CN 201110100249 Active CN102133633B (en) | 2011-04-21 | 2011-04-21 | Switching mechanism for intermediate tank stopper rod of continuous casting machine |
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Families Citing this family (9)
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| ITMI20121914A1 (en) * | 2012-11-09 | 2014-05-10 | Danieli Off Mecc | CONTROL DEVICE FOR BUFFER ROD |
| CN102921938A (en) * | 2012-11-22 | 2013-02-13 | 宁国市宏达电炉有限公司 | Pouring plug rod mechanism for bottom-pouring medium frequency maintaining furnace |
| CN103273053B (en) * | 2013-06-13 | 2016-02-03 | 济钢集团有限公司 | A kind of slab caster tundish compound flow control Processes and apparatus |
| CN106955995A (en) * | 2017-05-05 | 2017-07-18 | 应达工业（上海）有限公司 | A kind of adjustable type stopper rod mechanism controls device |
| CN107716911B (en) * | 2017-09-14 | 2020-09-18 | 首钢京唐钢铁联合有限责任公司 | Off-line adjustment method for stopper rod |
| CN114309519B (en) * | 2020-09-29 | 2024-06-04 | 上海梅山钢铁股份有限公司 | Method for determining spring elastic coefficient of load shedding spring of continuous casting stopper rod flow control mechanism |
| CN112570699B (en) * | 2020-12-11 | 2022-08-23 | 江苏国能合金科技有限公司 | Plug rod self-aligning device of middle holding furnace for amorphous spray belt production |
| CN115090870B (en) * | 2022-06-21 | 2023-05-12 | 江西金德铅业股份有限公司 | Liquid leakage preventing device for lead box plug rod |
| CN115138833B (en) * | 2022-08-17 | 2023-10-24 | 巢湖云海镁业有限公司 | Liquid supply device for magnesium alloy casting and rolling |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1136500B (en) * | 1980-09-25 | 1986-08-27 | Ceda Spa | SWITCHABLE DEVICE FOR ADJUSTING TABLET PAD |
| US5174361A (en) * | 1990-02-28 | 1992-12-29 | Stopinc Aktiengesellschaft | Automatic casting process of a continuous casting machine |
| CN201558951U (en) * | 2009-12-15 | 2010-08-25 | 武汉九鼎冶金电气设备有限责任公司 | Inserted middle pot stopper rod opening-closing mechanism |
| CN201693169U (en) * | 2010-06-20 | 2011-01-05 | 武汉钢铁(集团)公司 | Automatic pouring device of tundish |
| CN201735786U (en) * | 2010-08-26 | 2011-02-09 | 西安秦翔科技有限责任公司 | Leading screw-motor servo automatic control stopper adjusting actuator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5162B1 (en) * | 1968-12-04 | 1976-01-05 | ||
| CN202185581U (en) * | 2011-04-21 | 2012-04-11 | 马鞍山钢铁股份有限公司 | Opening and closing mechanism for stopper rod of intermediate tank of continuous casting machine |
-
2011
- 2011-04-21 CN CN 201110100249 patent/CN102133633B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1136500B (en) * | 1980-09-25 | 1986-08-27 | Ceda Spa | SWITCHABLE DEVICE FOR ADJUSTING TABLET PAD |
| US5174361A (en) * | 1990-02-28 | 1992-12-29 | Stopinc Aktiengesellschaft | Automatic casting process of a continuous casting machine |
| CN201558951U (en) * | 2009-12-15 | 2010-08-25 | 武汉九鼎冶金电气设备有限责任公司 | Inserted middle pot stopper rod opening-closing mechanism |
| CN201693169U (en) * | 2010-06-20 | 2011-01-05 | 武汉钢铁(集团)公司 | Automatic pouring device of tundish |
| CN201735786U (en) * | 2010-08-26 | 2011-02-09 | 西安秦翔科技有限责任公司 | Leading screw-motor servo automatic control stopper adjusting actuator |
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| CN102133633A (en) | 2011-07-27 |
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Address after: 243003 intellectual property department, technology center, No. 8 Hunan West Road, Yushan, Ma'anshan, Anhui Patentee after: Ma'anshan Iron and Steel Co., Ltd. Address before: 243003 intellectual property department, technology center, No. 8 Hunan West Road, Ma'anshan, Anhui Patentee before: Ma'anshan Iron and Steel Co., Ltd. |
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