CN113333731A - Automatic control pouring ladle plug rod opening and closing device - Google Patents
Automatic control pouring ladle plug rod opening and closing device Download PDFInfo
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- CN113333731A CN113333731A CN202110659556.1A CN202110659556A CN113333731A CN 113333731 A CN113333731 A CN 113333731A CN 202110659556 A CN202110659556 A CN 202110659556A CN 113333731 A CN113333731 A CN 113333731A
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- rod
- vertical
- seat
- fluted disc
- ladle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
- B22D41/20—Stopper-rod operating equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
- B22D41/18—Stopper-rods therefor
Abstract
The invention discloses an automatic control pouring ladle plug rod opening and closing device, which solves the technical problems that the plug rod opening and closing device in the prior art is manually operated and dangerous to operate, has poor safety and affects the quality of castings. The invention provides an automatically controlled pouring ladle stopper rod opening and closing device which is arranged on a ladle body, wherein a connecting rod mechanism comprises a vertical connecting rod and a transverse driving connecting rod, and the bottom of the vertical connecting rod is hinged with the middle part of the transverse driving connecting rod; the hydraulic system device comprises a hydraulic cylinder which is vertically and fixedly arranged, a piston rod of the hydraulic cylinder extends out of the bottom of the hydraulic cylinder, and the end part of the piston rod is hinged with the left end of the transverse driving connecting rod; the bottom end of the vertical plug rod is hinged with the right side of the transverse driving connecting rod, and the lower part of the vertical plug rod is connected with a bottom water injection port of the bag body; the hydraulic system device controls a piston rod of the hydraulic cylinder to stretch, drives the vertical sliding rod to move up and down through the transmission of the transverse driving connecting rod, and finally drives the vertical plug rod to move up and down through the cross arm. Can be widely applied to the technical field of casting machinery.
Description
Technical Field
The invention relates to the technical field of casting machinery, in particular to an automatic control opening and closing device for a ladle stopper rod.
Background
The traditional molten iron pouring method is to pour the molten iron by manually tilting a barrel-shaped ladle. Along with the change of ladle internal molten iron, the inclination of inclusion also must constantly change, and like this, the height that goes out the molten iron is inconsistent, and the flow is unstable, causes the molten iron to the pressure of sand mould suddenly big or small, directly influences the pouring quality.
The bottom pouring type pouring ladle can facilitate operators to quickly align a water gap with a casting pouring gate, avoid turbulence and air entrainment, improve the internal quality of the casting, facilitate operation and be widely used. At present, the stopper rod of the bottom pouring type ladle which is most widely applied consists of a steel core rod, sleeve bricks and stopper bricks. Fixing the chock plug on a steel core rod, sleeving a sleeve brick, coating refractory slurry between the bricks, filling dried fine sand in a gap between the steel core rod and the sleeve brick, installing a pressing plate, fastening by using a fixing nut, and drying or naturally drying the installed chock plug.
The stopper rod headstock gear of current casting ladle is mostly manual operation, and the casting ladle operator often receives the scald danger that high temperature radiation and molten steel splashed, seriously threatens labourer's safety and health. In addition, in the actual pouring operation process of the manually operated bottom pouring type pouring ladle, the lifting body of the stopper rod of the bottom pouring type pouring ladle often swings when being lifted, sometimes the stopper rod is not tightly closed, sometimes the opening size cannot be effectively controlled, the flow of the poured molten liquid fluctuates, the pouring speed is unstable, and the casting quality is influenced.
Therefore, there is a need for a ladle stopper rod opening and closing device that can be remotely and automatically controlled for a casting machine.
Disclosure of Invention
Aiming at the defects and shortcomings in the prior art, the invention provides the automatic control pouring ladle stopper rod opening and closing device which is ingenious in structural design, innovative in structure, adopts a hydraulic driving mode capable of realizing automatic control, obviously improves the mechanization and automation level of bottom pouring type pouring ladle operation, improves the production efficiency, obviously improves the casting quality, saves time and labor, reduces the probability of exposing personnel in dangerous environment, greatly ensures the safety and health of field operators, obviously improves the operation safety, has wide application range and reduces the production cost, and is in line with the development trend of the current intelligent casting factory.
In order to achieve the purpose, the invention is realized by the following technical scheme: the invention provides an automatically controlled pouring ladle stopper rod opening and closing device which is arranged on a pouring ladle body and comprises a hydraulic system device, a link mechanism and a stopper rod mechanism, wherein the link mechanism comprises a fixed support, a vertical connecting rod and a transverse driving connecting rod;
the hydraulic system device comprises a hydraulic cylinder vertically and fixedly arranged on the fixed support, a piston rod of the hydraulic cylinder extends out of the bottom of the hydraulic cylinder, and the end part of the piston rod is hinged with the left end of the transverse driving connecting rod;
the plug rod mechanism comprises a vertical sliding rod, a cross arm and a vertical plug rod which are in transmission connection, the vertical sliding rod is arranged on the outer side of the ladle body, the bottom end of the vertical sliding rod is hinged with the right side of the transverse driving connecting rod, the cross arm is arranged above the ladle body, two ends of the cross arm are respectively detachably and fixedly connected with the vertical sliding rod and the upper part of the vertical plug rod, the vertical plug rod is arranged in the ladle body, and the bottom of the vertical plug rod is connected with a bottom water injection port in the ladle body;
a controller of the hydraulic system device controls a piston rod of the hydraulic cylinder to stretch, drives the vertical sliding rod to move up and down through the transmission of the transverse driving connecting rod, and finally drives the vertical plug rod to move up and down through the cross arm.
Preferably, the fixed support comprises a ladle body base fixedly arranged on the outer side wall of the ladle body, an L-shaped support and a connecting frame, the L-shaped support is fixedly connected with the first ladle body base through a bolt, the upper left end of the connecting frame is fixedly connected with the L-shaped support, and the lower end of the connecting frame is hinged with the upper end of the vertical connecting rod;
and a hinge shaft seat fixedly connected with the lower part of the left side of the connecting frame is also arranged at the upper part of the hydraulic cylinder, and a hanging lug of the hinge shaft seat is hinged with a lug nose at the tail part of the hydraulic cylinder.
Preferably, the upper parts of the vertical sliding rods and one end of the cross arm are detachably and fixedly connected through a cross arm support and a cross arm gland, after the threaded end of the upper part of the vertical sliding rod is installed into a vertical groove of the cross arm support, the threaded end is fixed through a bolt and the cross arm gland, the fixed connection between one end of the cross arm and the vertical sliding rods is realized, and a vertical plug rod is further installed in an open groove at the other end of the cross arm.
Preferably, the stopper rod mechanism further comprises a slide rod guide seat for installing and guiding the vertical slide rod, the fixed support further comprises a second package body base and a third package body base which are matched with the slide rod guide seat, and the upper installation seat and the lower support seat which are matched with the vertical slide rod are respectively fixedly connected with the second package body base and the third package body base through bolts;
the upper part and the lower part of the slide bar guide seat are respectively provided with an upper guide sleeve and a lower guide sleeve, the upper part of the slide bar guide seat is hinged with the upper mounting seat, two groups of rotatable adjusting nuts and joint bolt combinations are arranged on the lower part of the slide bar guide seat and on two sides of the lower guide sleeve, the threaded end of each joint bolt is matched and connected with the corresponding adjusting nut, the other end of each joint bolt is connected with the lower supporting seat, and the adjusting nuts are twisted to drive the joint bolts to stretch and retract so as to adjust the center lines of inner holes of the upper guide sleeve and the lower guide sleeve of the slide bar guide seat to be in a vertical state.
Preferably, a fluted disc box and a fluted disc are further arranged on the base and outside the vertical slide rod, the fluted disc is hinged with the fluted disc box through a fluted disc pin shaft, the fluted disc pin shaft is fixed with the fluted disc box through a locking plate, and the fluted disc is meshed with a tooth-shaped structure on the vertical slide rod;
an inner sleeve of a vertical slide rod positioned in the fluted disc box is coaxially arranged with inner holes of an upper guide sleeve and a lower guide sleeve of the slide rod guide seat; an adjusting sleeve is sleeved outside the vertical sliding rod positioned at the upper part of the sliding rod guide seat.
Preferably, a rotatable movable clamping plate is arranged at the upper guide sleeve of the slide bar guide seat, a tooth-shaped clamping seat is welded on the fluted disc box, the fluted disc box and the slide bar guide seat form a whole body which cannot rotate relatively after the movable clamping plate is clamped to the tooth-shaped clamping seat, and the fluted disc box can rotate around the vertical slide bar after the movable clamping plate is separated from the tooth-shaped clamping seat;
the fluted disc is a semi-circular disc structure with teeth on the circumference of one side, the tail connecting rod is led out from the circle center of the other side of the fluted disc, and the tail connecting rod of the fluted disc is also provided with an operating handle.
Preferably, the upper bushing and the lower bushing are respectively embedded into the sleeves of the upper guide sleeve and the lower guide sleeve of the slide bar guide seat and are fixed through a set screw;
a graphite packing is pressed into the upper end face of the upper bushing and is fixed by a check ring through a hole; the lower guide sleeve of the slide bar guide seat is also provided with a guide screw which is transversely arranged and can be screwed into the lower bushing of the slide bar guide seat, and the upper guide sleeve of the slide bar guide seat is provided with a locking screw which is transversely arranged and can be screwed into the upper bushing of the slide bar guide seat.
Preferably, the bottom of the vertical plug rod is connected with a bottom water injection port through a plug brick, and a fixed seat brick matched with the bottom water injection port is further arranged at the bottom water injection port;
the vertical plug rod is sleeved with a sleeve brick, and the plug brick and the fixed seat brick are made of refractory materials; the upper bushing and the lower bushing are made of aluminum bronze.
Preferably, the hydraulic system device also comprises a control system device connected with the hydraulic cylinder, and the control system device comprises a controller, a hydraulic pump, a one-way valve, a three-position four-way electromagnetic directional valve and the hydraulic cylinder; an oil tank of hydraulic oil is connected with the one-way valve through a filter and a hydraulic pump and then connected with the P end of the three-position four-way electromagnetic directional valve, and a rodless cavity and a rod cavity of the hydraulic cylinder are respectively connected with the A end and the B end of the three-position four-way electromagnetic directional valve through pipelines and are used for realizing the extension and retraction of a piston rod of the hydraulic cylinder; a controller asynchronous motor electrically connected to the controller is electrically connected to the hydraulic pump.
Preferably, the T end of the three-position four-way electromagnetic directional valve is connected with an electromagnetic speed regulating valve through a pipeline; an overflow valve is connected on the pipeline between the hydraulic pump and the one-way valve.
The invention provides an automatic control device for opening and closing a plug rod of a casting ladle. The method has the following beneficial effects:
(1) the automatic control pouring ladle stopper rod opening and closing device is ingenious in structural design and innovative in structure, adopts a hydraulic driving mode capable of realizing automatic control, obviously improves the mechanization and automation level of bottom pouring type pouring ladle operation, improves the production efficiency, reduces the labor intensity of operators, reduces the probability of exposing the operators in dangerous environment, greatly ensures the safety and health of field operators, avoids great staff operation potential safety hazards, and obviously improves the operation safety; meanwhile, a safe manual operation function is reserved, and continuous and effective pouring operation is guaranteed.
In the long run, the labor cost expenditure of enterprises can be reduced, the automation and intellectualization process of the factory is accelerated, and the development trend of the current intelligent casting factory is met.
(2) The automatic control ladle stopper rod opening and closing device is suitable for bottom pouring type ladles matched with a bottom pouring type automatic pouring machine in a casting shop, is also suitable for bottom pouring type ladles transported by a crown block, and has wide application range.
(3) Still through the accurate automatic control of hydraulic drive mode and limiting structure's such as fluted disc setting, further ensure going on of production operation, the life of extension device still effectively simultaneously, reduction in production cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of FIG. 1 with internal structure;
FIG. 3 is a schematic view of the hydraulic cylinder in the direction F of FIG. 2;
FIG. 4 is a schematic structural view of the stopper rod mechanism of the present invention;
FIG. 5 is a schematic view of FIG. 4 with internal structure;
FIG. 6 is a schematic structural view of the slide bar guide block of FIG. 1;
FIG. 7 is a schematic structural view of a cross-sectional view E-E in FIG. 6;
FIG. 8 is a schematic structural view of the left side view of FIG. 7;
fig. 9 is a schematic structural diagram of a hydraulic system apparatus of the present invention.
In the figure: 1. the hydraulic cylinder, 2, the transverse driving connecting rod, 3, the vertical connecting rod, 4, the connecting frame, 5, the fluted disc pin shaft, 6, the vertical sliding rod, 7, the lower supporting seat, 8, the joint bolt, 9, the guide screw rod, 10, the operating handle, 11, the fluted disc box, 12, the locking plate, 13, the fluted disc, 14, the locking screw rod, 15, the upper mounting seat, 16, the adjusting sleeve, 17, the cross arm supporting seat, 18, the cross arm pressing cover, 19, the cross arm, 20, the vertical plug rod, 21, the lower bushing, 22, the upper bushing, 23, the sliding rod guiding seat, 24, the L-shaped supporting seat, 25, the movable clamping plate, 26, the tooth-shaped clamping seat, 27, the hinge shaft seat, 28, the adjusting nut, 29, the ladle body, 30, the first ladle body base, 31, the second body base, 32, the third body base, 33, the plug head brick, 34, the one-way valve, 35, the bottom water injection port, 36, the oil tank, 38. electromagnetic speed regulating valve, 39, overflow valve, 40, hydraulic pump, 41 and filter.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, e.g., as meaning permanently attached, removably attached, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 8, the present invention provides a technical solution:
as shown in fig. 1, the automatically controlled ladle stopper rod opening and closing device provided by the invention is arranged on a ladle body 29 and comprises a hydraulic system device, a link mechanism and a stopper rod mechanism, wherein the link mechanism comprises a fixed support, a vertical connecting rod 3 and a transverse driving connecting rod 2, the fixed support is fixedly arranged on the outer side wall of the ladle body 29, the upper part of the vertical connecting rod 3 is hinged with the fixed support, and the bottom of the vertical connecting rod 3 is hinged with the middle part of the transverse driving connecting rod 2;
the hydraulic system device comprises a hydraulic cylinder 1 vertically and fixedly arranged on a fixed support, a piston rod of the hydraulic cylinder 1 extends out of the bottom of the hydraulic cylinder, and the end part of the piston rod is hinged with the left end of a transverse driving connecting rod 2;
the stopper rod mechanism comprises a vertical sliding rod 6, a cross arm 19 and a vertical stopper rod 20 which are in transmission connection, wherein the vertical stopper rod 20 is arranged on the outer side of the ladle body 29, the bottom end of the vertical stopper rod is hinged with the right side of the transverse driving connecting rod 2, the right end of the transverse driving connecting rod 2 is inserted into a bottom notch of the vertical sliding rod 6 and then hinged, and all the hinges are connected through pin shafts. The cross arm 19 is arranged above the ladle body 29, two ends of the cross arm are respectively detachably and fixedly connected with the upper parts of the vertical sliding rod 6 and the vertical plug rod 20, the vertical plug rod 20 is arranged in the ladle body 29, and the bottom of the vertical plug rod is connected with a bottom water injection port 35 in the ladle body 29;
the controller of the hydraulic system device controls the piston rod of the hydraulic cylinder 1 to stretch out and draw back, drives the vertical slide rod 6 to move up and down through the transmission of the transverse driving connecting rod 2, and finally drives the vertical plug rod 20 to move up and down through the cross arm 19, so that the switch control between the bottom of the vertical plug rod 20 and the bottom water injection port 35 inside the ladle body 29 is automatically controlled, namely the start and stop processes of the pouring process of the ladle body 29 are automatically controlled through the hydraulic system device, the connecting rod mechanism and the plug rod mechanism. Compared with the traditional manually operated stopper rod mechanism, the automatically controlled pouring ladle stopper rod opening and closing device has the advantages that some mechanical structures are innovated, the hydraulic driving mode capable of realizing automatic control is adopted, the mechanization and automation level of the bottom pouring type pouring ladle pouring operation process is improved, the production efficiency is obviously improved, the labor intensity of operators is reduced, the probability of exposing the operators in dangerous environments is reduced, the safety and the health of field operators are greatly guaranteed, and the production safety is obviously improved. In the long run, the labor cost expenditure of enterprises can be reduced, the automation and intellectualization process of the factory is accelerated, and the development trend of the current intelligent casting factory is met.
As shown in fig. 2-8, the automatically controlled opening and closing device for the ladle stopper rod provided by the invention comprises a fixed support, an L-shaped support 24 and a connecting frame 4, wherein the fixed support comprises a ladle body base welded on the outer side wall of a ladle body 29, the L-shaped support 24 is fixedly connected with a first ladle body base 30 through a bolt, the upper left end of the connecting frame 4 is fixedly connected with the L-shaped support 24, and the lower end of the connecting frame 4 is hinged with the upper end of a vertical connecting rod 3; the upper part of the hydraulic cylinder 1 is also provided with a hinge shaft seat 27 fixedly connected with the lower part of the left side of the connecting frame 4, and a hanging lug of the hinge shaft seat 27 is hinged with a lug nose at the tail part of the hydraulic cylinder 1.
The stopper rod mechanism further comprises a slide rod guide seat 23 used for installing and guiding the vertical slide rod 6, the fixed support further comprises a second package body base 31 and a third package body base 32 which are matched with the slide rod guide seat 23, and an upper installation seat 15 and a lower support seat 7 which are matched with the vertical slide rod 6 are fixedly connected with the second package body base 31 and the third package body base 32 through bolts respectively; the upper portion and the lower portion of the slide bar guide seat 23 are respectively provided with an upper guide sleeve and a lower guide sleeve, the upper portion of the slide bar guide seat 23 is hinged with the upper portion mounting seat 15, the lower portion of the slide bar guide seat 23 and two sides of the lower guide sleeve are provided with two groups of rotatable adjusting nuts 28 and joint bolts 8, the thread ends of the joint bolts 8 are matched and connected with the adjusting nuts 28, the other ends of the joint bolts 8 are connected with the lower portion supporting seat 7, the adjusting nuts 28 are twisted to drive the joint bolts 8 to stretch, so that inner hole axes of the upper guide sleeve and the lower guide sleeve of the slide bar guide seat 23 are adjusted to be in a vertical state, the inner hole axes of the upper guide sleeve and the lower guide sleeve of the slide bar guide seat 23 are guaranteed to be in a vertical state, adjustment and installation of the slide bar guide seat 23 are simple and convenient, time and labor are saved, and work efficiency is remarkably improved.
The upper portion of the vertical sliding rod 6 and one end of the cross arm 19 are detachably and fixedly connected through a cross arm support 17 and a cross arm gland 18, after the threaded end of the upper portion of the vertical sliding rod 6 is installed into a vertical groove of the cross arm support 17, the threaded end is fixed through a bolt and the cross arm gland 18, fixed connection between one end of the cross arm 19 and the vertical sliding rod 6 is achieved, and a vertical plug rod 20 is further installed in an open groove at the other end of the cross arm 19. The bottom of the vertical plug rod 20 is connected with a bottom water injection port 35 through a plug brick 33, and a fixed brick cup matched with the bottom water injection port 35 is further arranged at the bottom water injection port 35; the vertical plug rod 20 is sleeved with sleeve bricks, and the plug bricks 33 and the fixed seat bricks are made of refractory materials. An upper bush 22 and a lower bush 21 which have antifriction function and are made of aluminum bronze are respectively embedded in the sleeves of the upper guide sleeve and the lower guide sleeve of the slide bar guide seat 23 and are fixed through set screws. The upper end surface of the upper bush 22 is also pressed with a graphite packing for preventing ash from falling, and is fixed by a check ring through a hole.
The fluted disc 13 is hinged to the fluted disc box 11 through a fluted disc pin shaft 5 of the fluted disc 13, the fluted disc pin shaft 5 of the fluted disc 13 is fixed with the fluted disc box 11 through a locking plate 12, the fluted disc 13 is meshed with a tooth-shaped structure on the vertical slide bar 6, the fluted disc 13 is a semi-circular disc structure with teeth on one side circumference, a tail connecting rod is led out from the circle center of the other side of the fluted disc 13, and an operating handle 10 is further mounted on the tail connecting rod of the fluted disc 13 and keeps the manual operation function of the original stopper rod mechanism. The fluted disc 13 has the advantages that in the automatically controlled hydraulic driving mode, the fluted disc has a certain limiting effect on the ascending and descending positions of the vertical slide rod 6, so that unsafe conditions such as shaking and the like caused by overlarge ascending or descending amplitude of the vertical slide rod 6 are prevented, and meanwhile, the opening and closing adjusting amplitude between the stopper brick 33 at the bottom of the vertical stopper rod 20 in the ladle body 29 and the bottom water injection port 35 is effectively adjusted, so that unsafe factors caused by overhigh ascending of the stopper brick 33 and damage caused by overlarge pressure at the bottom water injection port 35 caused by overlow descending are prevented; meanwhile, when the manual operation is performed, the fluted disc 13 is meshed with the toothed structure on the vertical slide rod 6 through the fluted disc 13, the fluted disc 13 is driven to rotate through the operating handle 10, so that the vertical slide rod 6 is controlled to ascend and descend, the use requirements under different adjustments are met, the application range is wide, even when the hydraulic system device does not work, the manual operation outside the ladle body 29 can still realize the pouring process, the whole pouring process is ensured to be smoothly performed, the production efficiency is improved, and the production cost is saved.
The inner sleeve of the vertical slide bar 6 positioned in the fluted disc box 11 is coaxially arranged with the inner holes of the upper guide sleeve and the lower guide sleeve of the slide bar guide seat 23 respectively; the adjusting sleeve 16 is sleeved outside the slide rod positioned at the upper part of the slide rod guide seat 23, so that the stroke of the vertical slide rod 6 moving up and down in the vertical direction is further ensured, meanwhile, the vertical slide rod 6 is protected from high-temperature radiation, and the service life of the vertical slide rod is prolonged.
A rotatable movable clamping plate 25 is arranged at the upper guide sleeve of the slide rod guide seat 23, a tooth-shaped clamping seat 26 is welded on the fluted disc box 11, when the movable clamping plate 25 is clamped to the tooth-shaped clamping seat 26, the fluted disc box 11 and the slide rod guide seat 23 form a whole body which cannot rotate relatively, and when the movable clamping plate 25 is separated from the tooth-shaped clamping seat 26, the fluted disc box 11 can rotate to a plurality of angle positions around the vertical slide rod 6. On the one hand, the tooth-shaped structures of the fluted disc 13 and the vertical slide bar 6 are operated at a plurality of positions to be meshed in the using process, so that the vertical slide bar 6 ascends and descends smoothly, and on the other hand, the assembly and the installation are convenient, and the detection and the maintenance are convenient.
A vertical slide rod 6 penetrates through inner holes of an upper guide sleeve and a lower guide sleeve of a slide rod guide seat 23 and an inner sleeve of a fluted disc box 11, an adjusting sleeve 16 is sleeved at the upper end of the vertical slide rod 6, a cross arm support 17 is installed at the threaded end of the vertical slide rod 6, a cross arm 19 is installed in a groove of the cross arm support 17, a cross arm gland 18 is installed on the cross arm 19 and fixed with the cross arm support 17 through bolts, and a vertical plug rod 20 which is assembled with refractory materials is installed in an open groove of the cross arm 19;
the lower guide sleeve of the slide bar guide seat 23 is provided with a guide screw 9 which is transversely arranged and can be screwed into the lower bush 21 of the slide bar guide seat, and when the guide screw 9 is screwed into a guide groove at the lower part of the vertical slide bar 6, the vertical slide bar 6 can be prevented from rotating to cause the horizontal swing of the cross arm 19 when ascending and descending. The upper guide sleeve of the slide bar guide seat 23 is provided with a locking screw 14 which is transversely arranged and can be screwed into the upper bushing 22, and the locking screw 14 is used for locking the vertical slide bar 6 to prevent the vertical slide bar from unexpected up-and-down sliding. If the guide screw 9 and the locking screw 14 in the stopper rod mechanism do not guide and lock the vertical slide rod 6, the vertical slide rod 6 can rotate around the central shaft of the vertical slide rod 6, and the cross arm 19 without the vertical stopper rod 20 can rotate to the outside of the ladle body 29, so that unsafe factors caused by interference between a ladle cover of a ladle roaster and the cross arm 19 when the ladle is roasted with refractory materials are avoided.
As shown in fig. 9, the hydraulic system device further includes a control system device connected to the hydraulic cylinder 1, and the control system device includes a controller, a hydraulic pump 40, a check valve 34, a three-position four-way electromagnetic directional valve 37, and the hydraulic cylinder 1; the oil tank 36 of the hydraulic oil is connected with the check valve 34 through the filter 41 and the hydraulic pump 40, and then connected with the P end of the three-position four-way electromagnetic directional valve 37, and the rodless cavity and the rod cavity of the hydraulic cylinder 1 are respectively connected with the a end and the B end of the three-position four-way electromagnetic directional valve 37 through pipelines, so as to realize the extension and retraction of the piston rod of the hydraulic cylinder 1. An asynchronous motor electrically connected to the controller is electrically connected to the hydraulic pump 40.
The T end of the three-position four-way electromagnetic directional valve 37 is connected with an electromagnetic speed regulating valve 38 through a pipeline; a relief valve 39 is also connected to the line between the hydraulic pump 40 and the check valve 34 via a line. The controller controls the hydraulic pump 40 to suck out the hydraulic oil in the oil tank 36 under the driving of the asynchronous motor, wherein the hydraulic oil is filtered by the oil filter; after flowing through the check valve 34, the hydraulic oil enters the rodless cavity of the hydraulic cylinder 1 through the three-position four-way electromagnetic directional valve 37, flows out of the rod cavity of the hydraulic cylinder 1, and returns to the oil pool 36 through the three-position four-way electromagnetic directional valve 37.
The invention relates to an automatically controlled casting ladle plug rod opening and closing device, which comprises the following specific using processes:
(1) the molten steel pouring process is carried out in an automatically controlled hydraulic driving mode:
1.1, opening a plug rod mechanism:
as shown in fig. 2 to 5, the locking screw 14 on the upper guide sleeve of the slide bar guide seat 23 is opened in advance, the upper guide screw 9 on the lower guide sleeve of the slide bar guide seat 23 is screwed into the guide station, and then the control system device is controlled by the controller of the hydraulic system device: starting an asynchronous motor of the hydraulic pump 40, controlling an electromagnet DT1 of the three-position four-way electromagnetic directional valve 37 to work, and enabling the electromagnet DT1 to be in a left-position working state, wherein at the moment, oil ways PA and BT of the three-position four-way electromagnetic directional valve 37 are conducted, the hydraulic pump 40 is driven by the asynchronous motor to suck out hydraulic oil in the oil pool 36, and the hydraulic oil is filtered by an oil filter; after flowing through the check valve 34, hydraulic oil enters a rodless cavity of the hydraulic cylinder 1 through the three-position four-way electromagnetic directional valve 37, a piston rod of the hydraulic cylinder 1 extends downwards, a transverse driving connecting rod 2 of a traction connecting rod mechanism moves downwards and upwards at the left end around a hinged pin shaft at the bottom of the vertical connecting rod 3 to drive the vertical sliding rod 6 to ascend, a cross arm 19 of the plug rod mechanism ascends and simultaneously drives the vertical plug rod 20 to ascend, a plug brick 33 at the bottom of the vertical plug rod 20 is separated from the bottom water injection port 35, and at the moment, molten steel in the ladle body 29 flows out of the bottom water injection port 35 to realize molten steel pouring;
1.2 the stopper rod mechanism keeps an opening state:
and then the controller of the hydraulic system device controls the three-position four-way electromagnetic directional valve 37 to return to the middle position, the plug rod mechanism keeps the opening state, molten steel pouring is continuously carried out, and the pouring operation of the casting is completed.
1.3 the stopper rod mechanism starts to close:
then, the controller of the hydraulic system device controls the electromagnet DT2 of the three-position four-way electromagnetic directional valve 37 to work, so that the electromagnet DT2 is in a right working state, AT the moment, the oil way PB of the three-position four-way electromagnetic directional valve 37 is communicated with the oil way AT, the hydraulic pump 40 is driven by the asynchronous motor to suck out the hydraulic oil in the oil tank 36, and the hydraulic oil is filtered by the oil filter; after flowing through the check valve 34, hydraulic oil enters a rod cavity of the hydraulic cylinder 1 through the three-position four-way electromagnetic directional valve 37, so that a piston rod of the hydraulic cylinder 1 extending downwards is recovered upwards, the transverse driving connecting rod 2 of the traction connecting rod mechanism moves upwards at the left end and downwards at the right end around a hinge pin shaft on the vertical connecting rod 3 to drive the vertical sliding rod 6 to descend, and meanwhile, after the vertical stopper rod 20 falls down, a stopper brick 33 at the bottom of the vertical stopper rod gradually closes a bottom water injection port 35 in the ladle body 29, and molten steel pouring is gradually stopped;
1.4 the stopper rod mechanism remains closed:
and then the controller of the hydraulic system device controls: the electromagnet DT2 stops working, the three-position four-way electromagnetic directional valve 37 returns to the middle position, and the plug rod mechanism is kept in the closed state.
After the pouring operation of each pouring ladle is completed, the locking screw 14 on the upper guide sleeve of the slide bar guide seat 23 is screwed down to ensure the reliability of locking the vertical slide bar 6 and prevent the residual molten steel from leaking and scalding.
The overflow valve 39 installed in the hydraulic system device can effectively prevent the continuous pressurizing feeding of the stopper brick 33 or the bottom water injection port 35 without stopping the action in time in the process of closing the bottom water injection port 35 by the vertical stopper rod 20 through reasonably setting the system working pressure, and the hydraulic system device controls the flow rate of hydraulic oil to reach the switching speed of a control stopper rod mechanism through the electromagnetic speed regulating valve 38 installed in a loop, thereby realizing accurate control, obviously improving the working efficiency, having high automation degree and high reliability.
(2) Manually controlling molten steel pouring:
in addition to the automatically controlled hydraulic driving operation, the stopper rod mechanism can also be manually operated and controlled by an operating handle 10, when the stopper rod mechanism is manually operated, the hinged connection between the bottom of a vertical slide rod 6 and a transverse driving connecting rod 2 needs to be removed in advance, after a locking screw 14 on an upper guide sleeve of a slide rod guide seat 23 is opened, the operating handle 10 is pressed down with force, the vertical slide rod 6 of the stopper rod mechanism is lifted, a vertical stopper rod 20 is lifted, a stopper brick 33 at the bottom of the vertical stopper rod 20 is separated from a bottom water injection port 35, and at the moment, molten steel in a ladle body 29 flows out of the bottom water injection port 35, so that molten steel pouring is realized;
after the molten steel pouring is finished, the operating handle 10 is lifted, the vertical sliding rod 6 of the stopper rod mechanism descends, the vertical stopper rod 20 falls, the stopper brick 33 at the bottom of the stopper rod mechanism closes the bottom water injection port 35 in the ladle body 29, and the molten steel pouring is stopped.
Compared with the traditional manually operated plug rod mechanism, the invention realizes the bottom pouring operation of the ladle through the structural design, the production safety is obviously improved by controlling the operation handle 10 outside the ladle body 29, and meanwhile, the invention can ensure that the hydraulic system device can continuously perform the production operation when stopping working, obviously improves the working efficiency and has wide application range. The fluted disc 13 has a certain limiting effect on the ascending and descending positions of the vertical slide rod 6, so that unsafe conditions such as shaking and the like caused by overlarge ascending or descending amplitude of the vertical slide rod 6 are prevented, and the safety of manual operation is further improved.
To sum up, the automatic control ladle stopper rod opening and closing device is ingenious in structural design and innovative in structure, adopts a hydraulic driving mode capable of realizing automatic control, obviously improves the mechanization and automation level of bottom pouring type ladle operation, improves the production efficiency, reduces the labor intensity of operators, reduces the probability of exposing the operators in dangerous environment, greatly ensures the safety and health of field operators, avoids great potential safety hazards of staff operation, and obviously improves the operation safety; meanwhile, a safe manual operation function is reserved, continuous and effective pouring operation is guaranteed, and the application range is wide; still through the accurate automatic control of hydraulic drive mode and limiting structure's such as fluted disc 13 setting, further ensure going on of production operation, the life of extension device still effectively simultaneously, reduction in production cost. In the long run, the labor cost expenditure of enterprises can be reduced, the automation and intellectualization process of the factory is accelerated, and the development trend of the current intelligent casting factory is met.
The automatic control device for opening and closing the stopper rod of the ladle according to the present invention can be implemented by only the preferred embodiment of the present invention, for example, the refractory material sleeved on the vertical stopper rod 20 is a sleeve brick.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (10)
1. An automatically controlled pouring ladle stopper rod opening and closing device is characterized by being arranged on a pouring ladle body and comprising a hydraulic system device, a link mechanism and a stopper rod mechanism, wherein the link mechanism comprises a fixed support, a vertical connecting rod and a transverse driving connecting rod, the fixed support is fixedly arranged on the outer side wall of the pouring ladle body, the upper part of the vertical connecting rod is hinged with the fixed support, and the bottom of the vertical connecting rod is hinged with the middle part of the transverse driving connecting rod;
the hydraulic system device comprises a hydraulic cylinder vertically and fixedly arranged on the fixed support, a piston rod of the hydraulic cylinder extends out of the bottom of the hydraulic cylinder, and the end part of the piston rod is hinged with the left end of the transverse driving connecting rod;
the plug rod mechanism comprises a vertical sliding rod, a cross arm and a vertical plug rod which are in transmission connection, the vertical sliding rod is arranged on the outer side of the ladle body, the bottom end of the vertical sliding rod is hinged with the right side of the transverse driving connecting rod, the cross arm is arranged above the ladle body, two ends of the cross arm are respectively detachably and fixedly connected with the vertical sliding rod and the upper part of the vertical plug rod, the vertical plug rod is arranged in the ladle body, and the bottom of the vertical plug rod is connected with a bottom water injection port in the ladle body;
the controller of the hydraulic system device controls the piston rod of the hydraulic cylinder to stretch, the transverse driving connecting rod drives the vertical sliding rod to move up and down, and finally the cross arm drives the vertical plug rod to move up and down.
2. The automatic control ladle stopper rod opening and closing device according to claim 1, wherein the fixed support comprises a ladle body base fixed on the outer side wall of the ladle body, an L-shaped support and a connecting frame, the L-shaped support is fixedly connected with the first ladle body base through a bolt, the upper left end of the connecting frame is fixedly connected with the L-shaped support, and the lower end of the connecting frame is hinged with the upper end of the vertical connecting rod;
and a hinge shaft seat fixedly connected with the lower part of the left side of the connecting frame is further arranged at the upper part of the hydraulic cylinder, and a hanging lug of the hinge shaft seat is hinged with a lug nose at the tail part of the hydraulic cylinder.
3. The automatic control ladle stopper rod opening and closing device as claimed in claim 1, wherein the upper part of the vertical slide rod and one end of the cross arm are detachably and fixedly connected through a cross arm support and a cross arm gland, after the threaded end of the upper part of the vertical slide rod is installed in the vertical groove of the cross arm support, the upper part of the vertical slide rod is fixed through a bolt and the cross arm gland, so that the fixed connection between one end of the cross arm and the vertical slide rod is realized, and the vertical stopper rod is further installed in the open groove at the other end of the cross arm.
4. The automatic control ladle stopper rod opening and closing device of claim 2, wherein the stopper rod mechanism further comprises a slide rod guide seat for installing and guiding the vertical slide rod, the fixed support further comprises a second ladle body base and a third ladle body base matched with the slide rod guide seat, and an upper installation seat and a lower support seat matched with the vertical slide rod are respectively and fixedly connected with the second ladle body base and the third ladle body base through bolts;
the upper portion and the lower portion of the slide bar guide seat are respectively provided with an upper guide sleeve and a lower guide sleeve, the upper portion of the slide bar guide seat is hinged to the upper portion mounting seat, two groups of rotatable adjusting nuts and joint bolt combinations are arranged on the lower portion of the slide bar guide seat and on two sides of the lower guide sleeve, the threaded end of each joint bolt is connected with the corresponding adjusting nut in a matched mode, the other end of each joint bolt is connected with the corresponding lower portion supporting seat, and the adjusting nuts are twisted to drive the joint bolts to stretch out and draw back so that inner hole axes of the upper guide sleeve and the lower guide sleeve of the slide bar guide seat can be adjusted to be in a vertical state.
5. The automatic control device for opening and closing the stopper rod of the ladle according to claim 4, wherein a fluted disc box and a fluted disc are further arranged on the base and outside the vertical slide rod, the fluted disc is hinged with the fluted disc box through a fluted disc pin shaft, the fluted disc pin shaft is fixed with the fluted disc box through a locking plate, and the fluted disc is meshed with the tooth-shaped structure on the vertical slide rod;
an inner sleeve of the vertical slide rod positioned in the fluted disc box is coaxially arranged with inner holes of an upper guide sleeve and a lower guide sleeve of the slide rod guide seat; and an adjusting sleeve is sleeved outside the vertical sliding rod positioned at the upper part of the sliding rod guide seat.
6. The automatic control device for opening and closing the stopper rod of the ladle according to claim 5, wherein a rotatable movable clamping plate is arranged at the upper guide sleeve of the slide rod guide seat, a tooth-shaped clamping seat is welded on the fluted disc box, when the movable clamping plate is clamped to the tooth-shaped clamping seat, the fluted disc box and the slide rod guide seat form a whole body which cannot rotate relatively, and when the movable clamping plate is separated from the tooth-shaped clamping seat, the fluted disc box can rotate around the vertical slide rod;
the fluted disc is a semi-circular disc structure with teeth on the circumference of one side, a tail connecting rod is led out from the circle center of the fluted disc on the other side of the fluted disc, and the tail connecting rod of the fluted disc is also provided with an operating handle.
7. The automatic control device for opening and closing the stopper rod of the ladle according to claim 5, wherein the sleeves of the upper guide sleeve and the lower guide sleeve of the guide seat of the slide rod are respectively embedded into the upper bushing and the lower bushing and are fixed by a set screw;
a graphite packing is pressed into the upper end face of the upper bushing and is fixed through a check ring for a hole; the lower guide sleeve of the slide bar guide seat is also provided with a guide screw which is transversely arranged and can be screwed into the lower bushing, and the upper guide sleeve of the slide bar guide seat is provided with a locking screw which is transversely arranged and can be screwed into the upper bushing.
8. An automatically controlled ladle stopper rod opening and closing device according to claim 7, wherein the bottom of the vertical stopper rod is connected with the bottom nozzle through a stopper brick, and the bottom nozzle is further provided with a fixed seat brick matched with the bottom nozzle;
the vertical plug rod is sleeved with a sleeve brick, and the plug brick and the fixed seat brick are made of refractory materials; the upper bushing and the lower bushing are made of aluminum bronze.
9. An automatically controlled ladle stopper rod opening and closing device according to claim 1, wherein the hydraulic system means further comprises control system means connected to the hydraulic cylinder, the control system means comprising the controller, hydraulic pump, check valve, three-position four-way electromagnetic directional valve and the hydraulic cylinder; an oil tank of hydraulic oil is connected with the check valve through a filter and the hydraulic pump and then connected with the P end of the three-position four-way electromagnetic directional valve, and a rodless cavity and a rod cavity of the hydraulic cylinder are respectively connected with the A end and the B end of the three-position four-way electromagnetic directional valve through pipelines and are used for realizing the extension and retraction of a piston rod of the hydraulic cylinder; a controller asynchronous motor electrically connected to the controller is electrically connected to the hydraulic pump.
10. An automatically controlled ladle stopper rod opening and closing device according to claim 9, wherein the T end of the three-position four-way electromagnetic directional valve is connected with an electromagnetic speed regulating valve through the pipeline; and an overflow valve is also connected to the pipeline between the hydraulic pump and the one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110659556.1A CN113333731A (en) | 2021-06-15 | 2021-06-15 | Automatic control pouring ladle plug rod opening and closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110659556.1A CN113333731A (en) | 2021-06-15 | 2021-06-15 | Automatic control pouring ladle plug rod opening and closing device |
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| CN113333731A true CN113333731A (en) | 2021-09-03 |
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| CN202110659556.1A Pending CN113333731A (en) | 2021-06-15 | 2021-06-15 | Automatic control pouring ladle plug rod opening and closing device |
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| CN213496463U (en) * | 2020-07-30 | 2021-06-22 | 广西长城机械股份有限公司 | Bottom pouring type molten steel purification device |
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| GB734153A (en) * | 1953-08-14 | 1955-07-27 | Republic Steel Corp | Improvements in or relating to ladle stopper control apparatus |
| US3309740A (en) * | 1964-04-21 | 1967-03-21 | United States Steel Corp | Stopper rod rigging for ladles |
| CN2756359Y (en) * | 2004-12-17 | 2006-02-08 | 中冶连铸技术工程股份有限公司 | Open and close mechanism for middle tank blocking stick |
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Application publication date: 20210903 |
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