A tool facilitating installation of a 10t bottom injection type leaky pack plug rod

Abstract

The application belongs to the technical field of stopper rod installation, and particularly relates to a tool facilitating installation of a 10t bottom pouring type missing package stopper rod, comprising a bottom pouring type missing package, a water gap is arranged at the bottom of the bottom pouring type missing package, a stopper rod inlet is arranged at the top of the bottom pouring type missing package, and a stopper rod is arranged in the bottom pouring type missing package in a matched mode. The stopper rod operation early warning mechanism can simultaneously alarm in the hearing and vision modes, so that the on-site staff can better evaluate and determine the situation in the ladle, and the ladle pouring is safer and more efficient. The leakage prevention mechanism is arranged, the iodine element can be combed by the combing ring, the volatilization is more sufficient, the rotation of the stopper rod can crush and remove the impurities at the water gap when the stopper rod moves downward due to the air pressure, the rotation of the stopper rod is also beneficial to better adhesion with the water gap, and the stopper rod lifting mechanism is further arranged to adjust the height and rotation of the L-shaped driving rod, so that the normal work of the stopper rod in the ladle can be satisfied.

Description

Technical Field

[0001] This invention belongs to the field of stopper rod installation technology, and in particular relates to a tooling for facilitating the installation of stopper rods in 10t bottom-filling leak-proof bags. Background Technology

[0002] Most existing medium and large-sized high-quality sand casting processes use ladle casting. The most critical technology and key point in ladle casting is the installation of the stopper rod. If the stopper rod is too close to the nozzle, it will be difficult for the stopper rod to open and close easily during the casting process. If the stopper rod is not close tightly to the nozzle, it will cause leakage of molten steel, affecting the casting quality and even leading to safety accidents.

[0003] According to the search, patent document CN102133633A discloses a stopper rod opening and closing mechanism for a continuous casting machine tundish. The mechanism includes a base, a stopper rod, an upper guide seat for the stopper rod, a lower guide seat for the stopper rod, a manual control lever, a stopper rod arm adjusting nut, a lifting cross arm, a stopper rod, and a stopper rod screw nut. A servo electric cylinder lower support is located on the lower guide seat for the stopper rod, and a servo electric cylinder upper support is located in the middle of the stopper rod. The servo electric cylinder is mounted on both the lower and upper supports. The stopper rod opening and closing mechanism also includes an automatic stopper rod control system. The automatic stopper rod control system comprises an eddy current sensor, instruments, a machine-side control box, an industrial computer, a system PLC, the stopper rod mechanism, the servo electric cylinder, and a digital driver. The eddy current sensor is installed above the crystallizer.

[0004] Existing stopper rod installation equipment for 10t bottom-fill leak bags still has the following shortcomings:

[0005] 1. Existing stopper rod installation equipment for bottom-pouring leaky ladles has limitations during stopper rod installation. Due to the size of the ladle and impurities at the nozzle, on-site operators cannot properly observe the gap between the stopper rod and the nozzle, and the fit between the stopper rod and the nozzle cannot be guaranteed. This can easily lead to molten steel leakage, posing a significant safety hazard to on-site personnel and equipment.

[0006] 2. Existing stopper rod installation equipment for bottom-pouring ladles cannot provide clear information about the interior of the ladle or the position of the stopper rods during molten steel pouring because the ladle is completely sealed. Furthermore, the equipment cannot monitor the flow of molten steel during filling, and the equipment inside the ladle cannot provide early warnings or reminders for the filling process. This results in a low level of safety for the overall operating environment of the ladle.

[0007] 3. Existing stopper rod installation equipment for bottom-filling leaking ladles mostly requires workers to adjust the position of the stopper rod through a multi-link mechanical structure. This adjustment method requires workers to be close to the ladle, which is difficult to operate and has a low safety factor. Since the stopper rod can only be moved vertically, it is not easy to disassemble and replace the stopper rod, resulting in a large workload for equipment maintenance. Summary of the Invention

[0008] The purpose of this invention is to address the problems mentioned in the background art, such as the inability of existing devices to resolve the gap between the stopper rod and the nozzle, the lack of early warning and prompts during molten steel release and filling, and the significant operational limitations of existing devices. The invention provides a tooling for installing the stopper rod in a 10t bottom-pouring ladle, which can resolve the gap between the stopper rod and the nozzle, provide early warning based on the temperature inside the ladle, and is more convenient to operate.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: a tooling for facilitating the installation of a 10t bottom-filling leak bag stopper rod, comprising a bottom-filling leak bag, wherein a water inlet is provided at the bottom of the bottom-filling leak bag, a stopper rod inlet is provided at the top of the bottom-filling leak bag, a stopper rod is provided inside the bottom-filling leak bag, the stopper rod is provided with an anti-leakage mechanism and a stopper rod operation early warning mechanism, and an aluminum nitride ceramic heat-conducting strip is provided inside the stopper rod;

[0010] A connecting frame is fixedly connected to one side of the bottom-filling leak bag, and a stopper rod lifting shell is fixedly connected to the connecting frame. A stopper rod lifting mechanism is provided inside the stopper rod lifting shell.

[0011] Furthermore, the leak-proof mechanism includes a connecting base plate, a piston-type housing, a piston plate, a comb ring, and a lead screw. The connecting base plate is rotatably connected to the top of the stopper rod, the piston-type housing is fixedly connected to the connecting base plate, the piston plate is slidably connected inside the piston-type housing, the comb ring is disposed on the top of the connecting base plate and is coaxially fixedly connected to the stopper rod, and the lead screw is coaxially fixedly connected to the comb ring.

[0012] Furthermore, a threaded sleeve is fixedly connected to the bottom of the piston plate, and the threaded sleeve is threadedly connected to the lead screw. A high-temperature resistant glass tube is coaxially fixedly connected to the top of the piston plate. An annular air inlet is provided at the top of the threaded sleeve, and the annular air inlet is connected to the high-temperature resistant glass tube. The high-temperature resistant glass tube penetrates the piston-type outer shell and is slidably connected to it.

[0013] Furthermore, the stopper rod operation warning mechanism includes a fixed ring, a stop bar, a support pad, a support base, a dual-output connector, a sliding port, and a protective shell. The fixed ring is fixedly connected to the high-temperature resistant glass tube, the two stop bars are fixedly connected to both sides of the fixed ring, the two support bases and the two dual-output connectors are fixedly connected to the top of the piston-type shell, the sliding port is fixedly connected to the top of the support base, and the protective shell is disposed on the dual-output connector and fixedly connected to the sliding port.

[0014] Furthermore, a sliding shaft is slidably connected inside the sliding port. A limit end is provided on the side of the sliding shaft near the protective shell. An arc-shaped baffle matching the stop bar is fixedly connected to the end of the sliding shaft away from the protective shell. A return spring is sleeved on the sliding shaft. The two sides of the return spring abut against the arc-shaped baffle and the sliding port, respectively. A rack is fixedly connected to the end of the limit end away from the sliding shaft. A transmission gear is rotatably connected to one output end of the dual output connector. A sound cylinder is coaxially fixedly connected to the transmission gear. A sound brush is fixedly connected to the other output end of the dual output connector. The rack and the transmission gear mesh with each other.

[0015] Furthermore, the stopper rod lifting mechanism includes a hydraulic cylinder, a C-shaped rotating seat, a worm gear, and a servo motor. The two hydraulic cylinders are respectively fixedly connected to the inner walls on both sides of the stopper rod lifting housing. The C-shaped rotating seat is fixedly connected to the output end of the hydraulic cylinder. The worm gear is rotatably connected inside the C-shaped rotating seat. The two servo motors are located at the bottom inside the stopper rod lifting housing and are rotatably connected to the C-shaped rotating seat on the corresponding side. The output end of the servo motor is coaxially fixedly connected to the worm gear on the corresponding side.

[0016] Furthermore, a sliding groove is provided inside the lifting housing of the stopper rod, and a sliding component is slidably connected in the sliding groove. A worm wheel is rotatably connected in the sliding component. The worm wheel meshes with two worms respectively, and a drive bevel gear is coaxially connected to the worm wheel.

[0017] Furthermore, a driven bevel gear is rotatably connected to the top of the sliding assembly, and the driving bevel gear meshes with the driven bevel gear. An L-shaped drive rod is rotatably connected to the sliding assembly, and the L-shaped drive rod passes through the sliding assembly and is coaxially and fixedly connected to the driven bevel gear. The end of the L-shaped drive rod away from the driven bevel gear is fixedly connected to a high-temperature resistant glass tube.

[0018] Compared with existing technologies, the advantages of this invention are:

[0019] 1. This invention incorporates a stopper rod operation warning mechanism. When the ladle is filled with molten steel, the high temperature of the molten steel is conducted through the aluminum nitride ceramic heat-conducting strip at the bottom of the stopper rod to the piston-type outer shell. The iodine in the piston-type outer shell evaporates into a gaseous state upon heating, causing the piston rod and the high-temperature resistant glass tube to rise. This causes the stop bar to contact the arc-shaped baffle, triggering an alarm sound. Some of the dark purple gas produced during the iodine evaporation enters the high-temperature resistant glass tube through the annular air inlet. This allows for simultaneous audible and visual alarms, enabling on-site personnel to better assess the situation inside the ladle, thus making ladle pouring safer and more efficient.

[0020] 2. This invention incorporates a leak-proof mechanism. By utilizing the movement of the piston plate, the threaded sleeve at the bottom of the piston plate moves away from the lead screw, resulting in a larger inclination angle for the lead screw. This causes the lead screw, comb ring, and stopper rod to rotate. The comb ring combs the iodine, allowing it to evaporate more fully. As the stopper rod moves downward due to air pressure, its rotation crushes and removes impurities at the nozzle. Furthermore, the rotation of the stopper rod helps to better fit with the nozzle, thus preventing poor sealing performance caused by mismatch between the stopper rod and the nozzle.

[0021] 3. This invention, by setting up a stopper rod lifting mechanism, utilizes two worm gears in cooperation with a worm wheel to adjust the height and rotate the L-shaped drive rod. This not only satisfies the normal operation of the stopper rod inside the ladle but also facilitates the disassembly and replacement of the stopper rod and the inspection and maintenance of other mechanisms within the device. Furthermore, to ensure the safety of the stopper rod, hydraulic cylinders are installed on both sides of the C-shaped rotating seat. When molten steel leaks from the ladle, the hydraulic cylinders can be controlled to adjust the position of the C-shaped rotating seat, causing the two worm gears to move away from the worm wheel, allowing the worm wheel, L-shaped drive rod, and stopper rod to fall freely and quickly block the nozzle, thus preventing accidents. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of a tooling for facilitating the installation of a 10t bottom-pouring leak plug rod, provided by the present invention.

[0023] Figure 2 This is a cross-sectional three-dimensional structural schematic diagram of a tooling for facilitating the installation of a 10t bottom-pouring leak plug rod provided by the present invention;

[0024] Figure 3 This is a cross-sectional three-dimensional structural diagram of the piston-type outer shell of a tooling for facilitating the installation of a 10t bottom-pouring leak plug rod, provided by the present invention.

[0025] Figure 4 This is a cross-sectional perspective view of the protective shell of a tooling for facilitating the installation of a 10t bottom-pouring leak plug rod, provided by the present invention.

[0026] Figure 5 This is a cross-sectional perspective view of the outer shell of the plug rod lifting device for a tooling that facilitates the installation of a 10t bottom-pouring leak plug rod provided by the present invention.

[0027] Figure 6 This is a three-dimensional structural diagram of the sliding component of a tooling for facilitating the installation of a 10t bottom-pouring leak plug rod, provided by the present invention.

[0028] Figure 7 This is a cross-sectional three-dimensional structural schematic diagram of the stopper rod of a tooling for easy installation of a 10t bottom-pouring leak bag stopper rod provided by the present invention.

[0029] In the diagram, 1 is a bottom-filling leak bag, 2 is a water inlet, 3 is a stopper rod, 4 is an aluminum nitride ceramic heat-conducting strip, 5 is a connecting frame, 6 is a stopper rod lifting shell, 7 is a connecting base plate, 8 is a piston shell, 9 is a piston plate, 10 is a comb ring, 11 is a lead screw, 12 is a lead sleeve, 13 is a high-temperature resistant glass tube, 14 is a fixing ring, 15 is a stop bar, 16 is a support pad, 17 is a support base, 18 is a dual-output connecting base, 19 is a sliding port, 20 is a protective shell, 21 is a sliding shaft, 22 is an arc-shaped baffle, 23 is a return spring, 24 is a rack, 25 is a transmission gear, 26 is a sound cylinder, 27 is a sound brush, 28 is a hydraulic cylinder, 29 is a C-shaped rotating seat, 30 is a worm gear, 31 is a servo motor, 32 is a sliding assembly, 33 is a worm wheel, 34 is a driving bevel gear, 35 is a driven bevel gear, and 36 is an L-shaped drive rod. Detailed Implementation

[0030] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0031] like Figures 1-7 As shown, a tooling for facilitating the installation of a stopper rod on a 10t bottom-filling leak bag includes:

[0032] Bottom-filling leak bag 1 has a water inlet 2 at the bottom and a stopper rod inlet at the top. A stopper rod 3 is installed inside the bottom-filling leak bag 1. The stopper rod 3 is equipped with an anti-leakage mechanism and a stopper rod operation warning mechanism. An aluminum nitride ceramic heat-conducting strip 4 is installed inside the stopper rod 3. The aluminum nitride ceramic heat-conducting strip 4 is mainly made of aluminum nitride ceramic material. The melting point of aluminum nitride ceramic can reach 2450℃, while the temperature of molten steel is generally around 1300℃. In addition, aluminum nitride ceramic has excellent thermal conductivity and strong mechanical properties. The aluminum nitride ceramic heat-conducting strip 4 can conduct the temperature at the contact position between the bottom of the stopper rod 3 and the water inlet 2 to the top of the stopper rod 3.

[0033] A connecting frame 5 is fixedly connected to one side of the bottom-pouring type leak bag 1. A stopper rod lifting housing 6 is fixedly connected to the connecting frame 5. A stopper rod lifting mechanism is provided inside the stopper rod lifting housing 6. The stopper rod lifting mechanism can adjust the position of the stopper rod 3 and perform emergency operations.

[0034] The leak-proof mechanism includes a connecting base plate 7, a piston-type housing 8, a piston plate 9, a comb ring 10, and a lead screw 11. The connecting base plate 7 is rotatably connected to the top of the stopper rod 3. The piston-type housing 8 is fixedly connected to the connecting base plate 7. The piston plate 9 is slidably connected inside the piston housing 8. The comb ring 10 is located on the top of the connecting base plate 7 and is coaxially fixedly connected to the stopper rod 3. The lead screw 11 is coaxially fixedly connected to the comb ring 10. A threaded sleeve 12 is fixedly connected to the bottom of the piston plate 9, and the threaded sleeve 12 is threadedly connected to the lead screw 11. A high-temperature resistant glass tube 14 is coaxially fixedly connected to the top of the piston plate 9. A ring-shaped air inlet is provided at the top, which is connected to a high-temperature resistant glass tube 14. The high-temperature resistant glass tube 14 passes through and is slidably connected to the piston-type outer shell 8. A certain amount of iodine needs to be stored at the bottom of the piston-type outer shell 8 in advance. Iodine will vaporize into a gaseous state at 113.73℃. When there is a certain amount of molten steel in the ladle, the high temperature generated by the molten steel will be conducted to the top of the stopper rod 3 through the aluminum nitride ceramic heat-conducting strip 4, and the temperature of the connecting base plate 7 will rise. At this time, the iodine vaporizes, the gas pressure increases, and the piston plate 9 will rise inside the piston-type outer shell 8, fixing it in place. The threaded sleeve 12 at the bottom of the piston plate 9 will move away from the lead screw 11. The lead screw 11 has a low coefficient of friction, a slope angle greater than 30 degrees, a large pitch, and a small helix angle. When it moves relative to the threaded sleeve 12, it will not self-lock. When the threaded sleeve 12 moves, the lead screw 11 and the stopper rod 3 will rotate. Under the conditions of air pressure and rotation, and on the premise of maintaining a basic fit with the sprue 2, the elliptical end of the stopper rod 3 will rotate and rub against the sprue 2, which can remove impurities from the sprue 2. Under the action of downward pressure, it will fit more closely with the sprue 2. By setting up an anti-leakage mechanism, the movement of the piston plate 9 causes the threaded sleeve 12 at the bottom of the piston plate 9 to move away from the lead screw 11. The lead screw 11 has a large tilt angle, which causes the lead screw 11, the comb ring 10, and the stopper rod 3 to rotate. The comb ring 10 can comb the iodine, making it volatilize more fully. As the stopper rod 3 moves downward due to air pressure, its own rotation will crush and remove impurities at the nozzle 2. Furthermore, the rotation of the stopper rod 3 is also conducive to better fitting with the nozzle 2, thereby avoiding poor sealing effect of the stopper rod 3 due to poor fit between the stopper rod 3 and the nozzle 2.

[0035] The stopper rod operation warning mechanism includes a fixed ring 15, a stop bar 15, a support pad 16, a support base 17, a dual-output connector 18, a sliding port 19, and a protective housing 20. The fixed ring 15 is fixedly connected to the high-temperature resistant glass tube 14. Two stop bars 15 are fixedly connected to both sides of the fixed ring 15. Two support bases 17 and two dual-output connectors 18 are fixedly connected to the top of the piston housing 8. The sliding port 19 is fixedly connected to the top of the support base 17. The protective housing 20 is mounted on the dual-output connector 18 and is fixedly connected to the sliding port 19. A sliding shaft 21 is slidably connected inside the sliding port 19. A limit end is provided on the side of the sliding shaft 21 closest to the protective housing 20, and a limit end is provided on the side of the sliding shaft 21 furthest from the protective housing 20. An arc-shaped baffle 22 matching the stop bar 15 is fixedly connected to the end. A return spring 23 is sleeved on the sliding shaft 21. The two sides of the return spring 23 abut against the arc-shaped baffle 22 and the sliding port 19, respectively. A rack 24 is fixedly connected to the end of the limiting end 1 away from the sliding shaft 21. A transmission gear 25 is rotatably connected to one output end of the dual output connector 18. A sound cylinder 26 is coaxially fixedly connected to the transmission gear 25. A sound brush 27 is fixedly connected to the other output end of the dual output connector 18. The rack 24 and the transmission gear 25 mesh with each other. The movement of the piston plate 9 inside the piston-type outer shell 8 is restricted by the vaporization and solidification of iodine. Therefore, the distance between the high-temperature resistant glass tube 14 and the piston-type outer shell 8 depends on whether there is molten steel in the ladle. Whether molten steel is present in the ladle is something that staff need to closely monitor. When molten steel is present in the ladle, the deep purple gas produced by the volatilization of iodine will enter the high-temperature resistant glass tube 14 through the annular air inlet. Staff can visually observe this. The relative movement between the high-temperature resistant glass tube 14 and the piston-type outer shell 8 will cause the baffle 15 and the arc-shaped baffle 22 to collide with each other. The arc-shaped baffle 22 will then move towards the sliding port 19, and at the same time, the return spring 23 will contract. When the arc-shaped baffle 22 is no longer in contact with the baffle 15, the return spring 23 will reset. The movement of the sliding shaft 21 will cause the rack 24 to move, and the transmission gear 25 meshing with the rack 24 will drive the sound cylinder 26 to rotate. Under the action of the brush 27... An alarm will sound when the ladle is filled with molten steel, thus alerting on-site personnel. By setting up a stopper rod operation warning mechanism, when the ladle is filled with molten steel, the high temperature of the molten steel is conducted through the aluminum nitride ceramic heat-conducting strip 4 at the bottom of the stopper rod 3 to the piston-type outer shell 8. The iodine in the piston-type outer shell 8 is heated and volatilizes into a gaseous state, causing the piston rod 3 and the high-temperature resistant glass tube 14 to rise, thereby causing the baffle 15 to contact the arc-shaped baffle 22 and sound an alarm. Some of the dark purple gas produced when the iodine volatilizes will enter the high-temperature resistant glass tube 14 through the annular air inlet. In this way, the alarm can be triggered by both hearing and sight, so that on-site personnel can better assess and judge the situation inside the ladle, thus making the ladle pouring safer and more efficient.

[0036] The stopper rod lifting mechanism includes hydraulic cylinders 28, C-shaped rotating seats 29, worm gears 30, and servo motors 31. Two hydraulic cylinders 28 are fixedly connected to the inner walls of both sides of the stopper rod lifting housing 6. The C-shaped rotating seats 29 are fixedly connected to the output ends of the hydraulic cylinders 28. The worm gear 30 is rotatably connected inside the C-shaped rotating seats 29. Two servo motors 31 are located at the bottom inside the stopper rod lifting housing 6 and rotatably connected to the corresponding C-shaped rotating seats 29. The output ends of the servo motors 31 are coaxially fixedly connected to the corresponding worm gears 30. A sliding groove is provided inside the stopper rod lifting housing 6, and a sliding assembly 32 is slidably connected within the groove. A worm wheel 33 is rotatably connected within the sliding assembly 32. The worm wheel 33 is respectively connected to... Two worm gears 30 mesh with each other, and a driving bevel gear 34 is coaxially connected to a worm wheel 33. A driven bevel gear 35 is rotatably connected to the top of the sliding assembly 32. The driving bevel gear 34 meshes with the driven bevel gear 35. An L-shaped drive rod 36 is rotatably connected to the sliding assembly 32. The L-shaped drive rod 36 passes through the sliding assembly 32 and is coaxially and fixedly connected to the driven bevel gear 35. The end of the L-shaped drive rod 36 away from the driven bevel gear 35 is fixedly connected to the high-temperature resistant glass tube 14. The position of the stopper rod 3 in the ladle is restricted by the position of the L-shaped drive rod 36. When the position of the stopper rod 3 needs to be adjusted, two servo motors 31 can be controlled to drive the worm gears 30 in the C-shaped rotating seat 29. When the two worm gears 30 mesh with each other, the driving bevel gear 34 meshes with the driven bevel gear 35. When the worm gears 30 rotate at the same speed and in the same direction, the worm wheel 33 can move along the axial direction of the worm 30, the sliding component 32 moves in the groove, and the L-shaped drive rod 36 can move. When the device needs maintenance, simply disassemble the stopper rod 3 and control the two servo motors 31 so that the two worms 30 rotate at the same speed but in different directions. At this time, the worm wheel 33 remains in its original position but will rotate on its own axis. At this time, the driving bevel gear 34, which is coaxially fixedly connected to the worm wheel 33, can rotate, and the driven bevel gear 35, which meshes with the driving bevel gear 34, can rotate, thereby causing the L-shaped drive rod 36 to rotate around the driven bevel gear 35 as the axis. By setting the stopper rod lifting mechanism, The L-shaped drive rod 36 is adjusted in height and rotated by two worm gears 30 in cooperation with the worm wheel 33. This not only ensures the normal operation of the stopper rod 3 inside the ladle, but also facilitates the disassembly and replacement of the stopper rod 3 and the inspection and maintenance of other mechanisms in the device. In order to ensure the safety of the stopper rod 3, hydraulic cylinders 28 are installed on both sides of the C-shaped rotating seat 29. When molten steel leaks in the ladle, the hydraulic cylinders 28 can be controlled to adjust the position of the C-shaped rotating seat 29, so that the two worm gears 30 move away from the worm wheel 33, allowing the worm wheel 33, the L-shaped drive rod 36 and the stopper rod 3 to fall freely, thereby quickly blocking the sprue 2 and preventing safety accidents.

[0037] The working principle of this invention is as follows:

[0038] The stopper rod 3 is equipped with a leak prevention mechanism and a stopper rod operation early warning mechanism. The stopper rod 3 is equipped with an aluminum nitride ceramic heat conduction strip 4. The aluminum nitride ceramic heat conduction strip 4 is mainly made of aluminum nitride ceramic material. The melting point of aluminum nitride ceramic can reach 2450℃, while the temperature of molten steel is generally around 1300℃. In addition, aluminum nitride ceramic has excellent thermal conductivity and strong mechanical properties. The aluminum nitride ceramic heat conduction strip 4 can conduct the temperature at the contact position between the bottom of the stopper rod 3 and the nozzle 2 to the top of the stopper rod 3.

[0039] A certain amount of iodine needs to be stored in advance at the bottom of the piston-type outer shell 8. Iodine will vaporize at 113.73℃. When there is a certain amount of molten steel in the ladle, the high temperature generated by the molten steel will be conducted to the top of the stopper rod 3 through the aluminum nitride ceramic heat-conducting strip 4, and the temperature of the connecting base plate 7 will rise. At this time, the iodine vaporizes, the gas pressure increases, and the piston plate 9 will rise inside the piston-type outer shell 8. The threaded sleeve 12 fixed at the bottom of the piston plate 9 will move away from the lead screw 11. The lead screw 11 has a low coefficient of friction, a slope angle greater than 30 degrees, a large pitch and a small helix angle. When it moves relative to the threaded sleeve 12, it will not self-lock. When the threaded sleeve 12 moves, the lead screw 11 and the stopper rod 3 will rotate. Under the conditions of gas pressure and rotation, the stopper rod 3 will move relative to the nozzle 2. Under the premise of ensuring basic fit, the elliptical end of the stopper rod 3 will rotate and rub against the nozzle 2, which can remove impurities at the nozzle 2. Under the action of downward pressure, it will fit the nozzle 2 more closely. By setting an anti-leakage mechanism, the movement of the piston plate 9 will make the threaded sleeve 12 at the bottom of the piston plate 9 move away from the screw 11. The screw 11 has a large inclination angle, which causes the screw 11, the comb ring 10 and the stopper rod 3 to rotate. The comb ring 10 can comb the iodine element, so that it volatilizes more fully. While the stopper rod 3 moves downward due to air pressure, its own rotation will crush and remove impurities at the nozzle 2. The rotation of the stopper rod 3 also helps to fit better with the nozzle 2, thus avoiding poor sealing effect of the stopper rod 3 due to poor fit between the stopper rod 3 and the nozzle 2.

[0040] The movement of the piston plate 9 inside the piston-type outer shell 8 is controlled by the vaporization and solidification of iodine. Therefore, the distance between the high-temperature resistant glass tube 14 and the piston-type outer shell 8 depends on whether there is molten steel in the ladle. Whether there is molten steel in the ladle is something that the staff needs to closely monitor. When there is molten steel in the ladle, the dark purple gas produced by the volatilization of iodine will enter the high-temperature resistant glass tube 14 through the annular air inlet. The staff can visually observe this. The relative movement between the high-temperature resistant glass tube 14 and the piston-type outer shell 8 will cause the baffle 15 and the arc-shaped baffle 22 to collide with each other. The arc-shaped baffle 22 will move towards the sliding port 19, and at the same time, the return spring 23 will contract. When the arc-shaped baffle 22 is no longer in contact with the baffle 15, the return spring 23 will reset. The movement of the sliding shaft 21 will cause the rack 24 to move, and the rack will retract. The transmission gear 25 meshing with bar 24 will drive the sound tube 26 to rotate, and under the action of the sound brush 27, an alarm sound will be emitted, thereby reminding the on-site personnel. By setting up a stopper rod operation warning mechanism, when the ladle is filled with molten steel, the high temperature of the molten steel is conducted to the piston-type outer shell 8 through the aluminum nitride ceramic heat-conducting strip 4 at the bottom of the stopper rod 3. The iodine in the piston-type outer shell 8 is heated and volatilized into a gaseous state, causing the piston rod 3 and the high-temperature resistant glass tube 14 to rise, thereby causing the baffle 15 to contact the arc-shaped baffle 22 and emit an alarm sound. Some of the dark purple gas generated when the iodine volatilizes will enter the high-temperature resistant glass tube 14 through the annular air inlet. In this way, the alarm can be emitted simultaneously by hearing and sight, so that the on-site personnel can better assess and judge the situation inside the ladle, thereby making the ladle pouring safer and more efficient.

[0041] The position of the stopper rod 3 within the ladle is constrained by the position of the L-shaped drive rod 36. When adjustment of the stopper rod 3's position is required, two servo motors 31 can be controlled to drive the worm gear 30 within the C-shaped rotating seat 29. When the two worm gears 30 rotate at the same speed and direction, the worm wheel 33 can move along the axial direction of the worm gear 30, the sliding component 32 moves within the groove, and the L-shaped drive rod 36 can move. When maintenance is required, the stopper rod 3 can be disassembled, and the two servo motors 31 can be controlled to rotate the two worm gears 30 at the same speed but in different directions. At this time, the worm wheel 33 remains stationary but will rotate on its own axis. The driving bevel gear 34, which is coaxially fixedly connected to the worm wheel 33, can then rotate, and the driven bevel gear 35, which meshes with the driving bevel gear 34, can also rotate. This causes the L-shaped drive rod 36 to rotate around the driven bevel gear 35. By setting up a stopper rod lifting mechanism, two worm gears 30 cooperate with the worm wheel 33 to adjust the height and rotate the L-shaped drive rod 36. This not only meets the normal working requirements of the stopper rod 3 in the ladle, but also facilitates the disassembly and replacement of the stopper rod 3 and the inspection and maintenance of other mechanisms of the device. At the same time, in order to ensure the safety of the stopper rod 3, hydraulic cylinders 28 are set on both sides of the C-shaped rotating seat 29. When molten steel leaks in the ladle, the hydraulic cylinders 28 can be controlled to adjust the position of the C-shaped rotating seat 29, so that the two worm gears 30 move away from the worm wheel 33, allowing the worm wheel 33, the L-shaped drive rod 36 and the stopper rod 3 to fall freely, thereby quickly blocking the nozzle 2 and preventing safety accidents.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tooling for facilitating the installation of a stopper rod on a 10t bottom-pouring leak bag, comprising a bottom-pouring leak bag (1), characterized in that, The bottom of the bottom-filled leak bag (1) is provided with a water inlet (2), the top of the bottom-filled leak bag (1) is provided with a stopper rod inlet, the bottom-filled leak bag (1) is provided with a stopper rod (3), the stopper rod (3) is provided with a leak prevention mechanism and a stopper rod operation warning mechanism, and the stopper rod (3) is provided with an aluminum nitride ceramic heat-conducting strip (4). A connecting frame (5) is fixedly connected to one side of the bottom-filling leak bag (1), and a stopper rod lifting shell (6) is fixedly connected to the connecting frame (5). A stopper rod lifting mechanism is provided inside the stopper rod lifting shell (6). The leak-proof mechanism includes a connecting base plate (7), a piston-type outer shell (8), a piston plate (9), a comb ring (10), and a screw (11). The connecting base plate (7) is rotatably connected to the top of the stopper rod (3). The piston-type outer shell (8) is fixedly connected to the connecting base plate (7). The piston plate (9) is slidably connected inside the piston-type outer shell (8). Iodine is stored at the bottom of the piston-type outer shell (8). The comb ring (10) is set on the top of the connecting base plate (7) and is coaxially fixedly connected to the stopper rod (3). The screw (11) is coaxially fixedly connected to the comb ring (10). The piston plate (9) is fixedly connected to the bottom of a threaded sleeve (12), which is threadedly connected to the lead screw (11). The piston plate (9) is fixedly connected to the top of a high-temperature resistant glass tube (13) on the same axis. The top of the threaded sleeve (12) is provided with an annular air inlet, which is connected to the high-temperature resistant glass tube (13). The high-temperature resistant glass tube (13) passes through the piston-type outer shell (8) and is slidably connected to it.

2. The tooling for facilitating the installation of a 10t bottom-pouring leak plug as described in claim 1, characterized in that, The stopper rod operation warning mechanism includes a fixed ring (14), a stop bar (15), a support pad (16), a support seat (17), a dual output connector (18), a sliding port (19), and a protective shell (20). The fixed ring (14) is fixedly connected to the high-temperature resistant glass tube (13). The two stop bars (15) are fixedly connected to both sides of the fixed ring (14). The two support seats (17) and the two dual output connectors (18) are fixedly connected to the top of the piston-type shell (8). The sliding port (19) is fixedly connected to the top of the support seat (17). The protective shell (20) is set on the dual output connector (18). The protective shell (20) is fixedly connected to the sliding port (19).

3. The tooling for facilitating the installation of a 10t bottom-pouring leak plug as described in claim 2, characterized in that, A sliding shaft (21) is slidably connected inside the sliding port (19). A limit end is provided on the side of the sliding shaft (21) near the protective shell (20). An arc-shaped baffle (22) matching the stop bar (15) is fixedly connected to the end of the sliding shaft (21) away from the protective shell (20). A return spring (23) is provided on the outer sleeve of the sliding shaft (21). The two sides of the return spring (23) abut against the arc-shaped baffle (22) and the sliding port (19) respectively. A rack (24) is fixedly connected to the end of the limit end away from the sliding shaft (21). A transmission gear (25) is rotatably connected to one output end of the dual output connector (18). A sound tube (26) is fixedly connected to the transmission gear (25) on the same axis. A sound brush (27) is fixedly connected to the other output end of the dual output connector (18). The rack (24) and the transmission gear (25) mesh with each other.

4. The tooling for facilitating the installation of a 10t bottom-pouring leak plug as described in claim 1, characterized in that, The stopper rod lifting mechanism includes a hydraulic cylinder (28), a C-shaped rotating seat (29), a worm gear (30), and a servo motor (31). The two hydraulic cylinders (28) are respectively fixedly connected to the inner walls on both sides of the stopper rod lifting housing (6). The C-shaped rotating seat (29) is fixedly connected to the output end of the hydraulic cylinder (28). The worm gear (30) is rotatably connected inside the C-shaped rotating seat (29). The two servo motors (31) are located at the bottom inside the stopper rod lifting housing (6) and are rotatably connected to the C-shaped rotating seat (29) on the corresponding side. The output end of the servo motor (31) is coaxially fixedly connected to the worm gear (30) on the corresponding side.

5. The tooling for facilitating the installation of a 10t bottom-pouring leak plug as described in claim 4, characterized in that, The plug lifting housing (6) has a sliding groove, and a sliding component (32) is slidably connected in the sliding groove. A worm wheel (33) is rotatably connected in the sliding component (32). The worm wheel (33) meshes with two worms (30) respectively. The worm wheel (33) is coaxially connected with a drive bevel gear (34).

6. The tooling for facilitating the installation of a 10t bottom-pouring leak plug as described in claim 5, characterized in that, The sliding assembly (32) is rotatably connected to the top of the driven bevel gear (35), the driving bevel gear (34) meshes with the driven bevel gear (35), and an L-shaped drive rod (36) is rotatably connected to the sliding assembly (32). The L-shaped drive rod (36) passes through the sliding assembly (32) and is coaxially fixedly connected to the driven bevel gear (35). The end of the L-shaped drive rod (36) away from the driven bevel gear (35) is fixedly connected to the high-temperature resistant glass tube (13).

Images