Blast furnace valve stand switching device and switching method thereof

Abstract

The invention relates to the technical field of blast furnace maintenance equipment, and particularly discloses a blast furnace valve stand switching device and a switching method thereof.The blast furnace valve stand switching device comprises a chassis, a top tray is arranged above the chassis, and the blast furnace valve stand switching device further comprises a switching mechanism fixedly installed on the chassis and the top tray. Through the arranged clamping assembly, the valve stand is fixed through the clamping effect when the valve stand is installed, the first motor is used for driving the valve stand to ascend to the installation position to complete installation, rapid installation of the valve stand is achieved, and meanwhile the problem that the valve stand is difficult to move due to the fact that the valve stand is too heavy can be solved; meanwhile, the safety in the mounting process is greatly improved, a cladding plate is elastically and slidably connected to the mounting strip, and the inner surface of the cladding plate is arranged to be a rubber surface, so that the clamping assembly is attached and clamped through the cladding plate when clamping and fixing the valve stand, the contact area of the clamping assembly and the valve stand is greatly increased, and the safety of the valve stand is improved. Therefore, the stability of the valve stand during movement is greatly improved, and the problem that the valve stand falls off is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of blast furnace maintenance equipment, in particular to a blast furnace valve table switching device and a switching method thereof. Background Art

[0002] In the field of blast furnace maintenance equipment, the blast furnace valve table switching device is used to automate the installation and replacement of valve tables, ensuring stable operation of the blast furnace system. This device utilizes the support structure of the base and top plates, combined with the switching mechanism's drive rod and clamping assembly design. The device utilizes the coordinated drive of motors 1 and 2 to achieve the lifting, rotation, and clamping of the valve table. This device is suitable for rapid switching of blast furnace valve tables and is of great significance for improving blast furnace maintenance efficiency and safety.

[0003] There are significant deficiencies in traditional blast furnace valve table switching equipment. In terms of installation efficiency, traditional devices lack an automated clamping structure, and the installation of the valve table relies on manual positioning and hoisting. When faced with scenarios where the valve table is heavy and the installation accuracy requirements are high, problems such as difficulty in movement and positioning deviation are prone to occur. In addition, manual operation is unsafe and there is a risk of falling from heights. The degree of automation is low, and the integrated lifting and rotation of the valve table cannot be achieved. Multiple devices need to work together, resulting in cumbersome, time-consuming and labor-intensive processes. The stability is insufficient, and traditional clamping methods are mostly rigidly fixed, which cannot adapt to the vibration environment of the valve table during operation. It is easy to loosen or resonate, affecting the service life of the equipment. In addition, the traditional device lacks a dynamic adjustment mechanism and has poor compatibility with valve tables of different specifications. The replacement process requires frequent adjustment of the fixture, which restricts the continuity and efficiency improvement of blast furnace maintenance. Summary of the Invention

[0004] (1) Technical problems solved

[0005] The present invention provides a blast furnace valve table switching device and a switching method thereof, which solve the problems mentioned in the above background technology.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A blast furnace valve table switching device, including a chassis, a top plate is arranged above the chassis, and also includes: a switching mechanism, the switching mechanism is fixedly installed on the chassis and the top plate; an auxiliary mechanism, the auxiliary mechanism is fixedly installed on the switching mechanism; wherein the switching mechanism includes a driving rod, the upper and lower ends of the driving rod are respectively passed through and rotatably connected to the top plate and the chassis, the driving rod is set as a threaded rod, the top of the driving rod is rotatably connected to motor No. 1, and the No. 1 motor is fixedly connected to the upper surface of the top plate.

[0008] According to one embodiment of the present invention, four limit rods are arranged on the outer side of the driving rod at fixed intervals around its central axis, a movable ring is slidably sleeved on the limit rod, the inner surface of the movable ring is connected to the outer surface of the driving rod by a thread, and the outer surface of the movable ring is fixedly connected to a support rod.

[0009] According to one embodiment of the present invention, the end of the support rod away from the movable ring is fixedly connected to the mounting seat, the lower surface of the mounting seat is fixedly connected to the No. 2 motor, the output end of the No. 2 motor is rotatably connected to the gear box, the gear box is fixedly embedded in the interior of the mounting seat, the output ends on both sides of the gear box are symmetrically rotatably connected to the adjusting rod, the adjusting rod is configured as a threaded rod, and the outer surfaces on both sides of the mounting seat are penetrated and fixedly connected with a stabilizing rod, and two stabilizing rods are provided, wherein the two stabilizing rods are arranged parallel to each other.

[0010] According to one embodiment of the present invention, a movable plate is slidably sleeved on the outer surface of the stabilizing rod, the bottom outer surface of the movable plate is connected to the outer surface of the adjusting rod by a thread, the movable plates are symmetrically arranged on both sides of the mounting seat, and the end of the movable plate away from the stabilizing rod is fixedly connected to a clamping assembly.

[0011] According to one embodiment of the present invention, the clamping assembly includes a mounting bar, the mounting bars are arranged in a group of two parallel to each other, the mounting bars are arranged in an arc shape, and both ends of the mounting bars in the same group are fixedly connected with a connecting rod, wherein the two groups of mounting bars are combined into a ring, and the outer surface of the connecting rod close to the stabilizing bar is fixedly connected to the outer surface of the moving plate away from the stabilizing bar, the inner side of the mounting bar is provided with a covering plate, the covering plate is arranged in an arc shape, the outer surface of the covering plate is elastically slidably connected to the outer surface of the mounting bar through a connecting rod, wherein the inner surface of the covering plate is arranged as a rubber surface, the outer surface of the mounting bar is fixedly connected to the mounting plate, and the interior of the mounting plate is fixedly inlaid with an elastic telescopic rod, and the elastic telescopic rod is arranged in an arc shape, wherein the outer surface of the connecting rod away from the mounting seat is fixedly connected to the stabilizing plate, and a through hole is reserved on the stabilizing plate.

[0012] According to one embodiment of the present invention, the auxiliary mechanism includes a top ring, which is rotatably connected to the lower surface of the top plate, and the inner surface of the top ring is connected to the top outer surface of the driving rod through magnetic rotation. The upper surface of the chassis is provided with a mounting groove, and a bottom ring is rotatably connected in the mounting groove, and the inner surface of the bottom ring is connected to the bottom outer surface of the driving rod through magnetic rotation, wherein the upper and lower ends of the limit rod are fixedly connected to the inner surfaces of the top ring and the bottom ring respectively.

[0013] According to one embodiment of the present invention, the top of the driving rod is rotatably engaged with an air collecting ring, the interior of the air collecting ring is set to be hollow, and the air collecting ring is fixedly sleeved on the limiting rod at the same time, the interior of the driving rod is set to be hollow, and a connecting hole is opened through the top outer surface of the driving rod, wherein the internal cavity of the driving rod is connected with the internal cavity of the air collecting ring through the connecting hole, and the lower surface of the air collecting ring is fixedly connected with a tubular bag, and the tubular bag is sleeved on the outside of the limiting rod, and the bottom of the tubular bag is fixedly connected with a sliding ring, and the sliding ring is elastically slidably sleeved on the outer surface of the limiting rod, and the internal cavity of the air collecting ring is connected with the internal cavity of the elastic telescopic rod through a hose.

[0014] According to one embodiment of the present invention, a limiting groove is provided on the upper surface of the chassis, a protrusion is fixedly connected to the side surface of the bottom ring, and the protrusion is arranged in the limiting groove. A filling groove No. 1 is provided through the upper surface of the bottom ring, and a filling groove No. 2 is provided on the upper surface of the chassis. The filling groove No. 1 and the filling groove No. 2 are initially arranged opposite to each other. A No. 1 elastic telescopic plate is fixedly connected in the filling groove No. 1, and a No. 2 elastic telescopic plate is fixedly connected in the filling groove No. 2. The output end of the No. 2 elastic telescopic plate is initially arranged in the filling groove No. 1, and the internal cavity of the driving rod is connected to the internal cavity of the No. 1 elastic telescopic plate.

[0015] The present invention provides a switching method for a blast furnace valve table switching device, comprising the following steps:

[0016] S1. The entire device is fixed on the top of the blast furnace through the bottom plate and the top plate. Then, the valve table is placed between the two sets of mounting bars and the No. 2 motor is started. The No. 2 motor drives the two sets of mounting bars closer together through the gear box and the adjusting rod to complete the clamping of the valve table.

[0017] S2. After the valve table is clamped and fixed, start the No. 1 motor. As the No. 1 motor starts, it drives the drive rod to rotate, causing the support rod and its moving ring to move upward, that is, driving the valve table to move upward until the valve table moves to the same horizontal plane as the installation position;

[0018] S3. As the No. 1 motor drives the driving rod to rotate continuously, the moving ring begins to rotate clockwise relative to the bottom plate and the top plate until it rotates 90 degrees to the installation position. At this time, the valve table can be fixed with bolts;

[0019] S4. When the valve table needs to be switched and replaced, the bolts fixing the valve table can be removed and then the No. 1 motor can be started to reverse. The reversal of the No. 1 motor drives the old valve table to gradually separate from the installation position of the blast furnace and move downward step by step. When the valve table reaches the bottom of the driving rod, the No. 2 motor can be reversed to replace the old valve table. When the valve table needs to be installed, the tubular valve table can be placed as a whole between the clamping components and the No. 2 motor can be started. As the No. 2 motor is started, the adjusting rod will start to rotate through the gear box. As the adjusting rod rotates, the movable plate will start to move closer to the mounting seat along the stabilizing rod through the thread, thereby driving the mounting bars on both sides to move closer to each other and shrink. Finally, the outer surface of the valve table is clamped and fixed by the mounting bars. However, after the fixation is completed Stop motor No. 2 and start motor No. 1. Motor No. 1 starts and drives the driving rod to start rotating. Then, due to the limitation of the limit rod, the moving ring starts to move up along the limit rod under the action of the thread, that is, the clamping assembly and its valve table are driven to move up through the support rod until the valve table reaches the installation position, and the two ends of the valve table are fixed with bolts to complete the installation of the valve table. When the valve table needs to be replaced, the fixing bolts at both ends of the valve table can be removed first, and then motor No. 1 can be started in reverse to drive the clamping assembly to drive the valve table to move down until it reaches the bottom. At this time, stop motor No. 1 and start motor No. 2 in reverse so that the clamping assembly loses its fixation on the valve table. The valve table can be taken out for replacement. After the replacement is completed, the above operations can be performed to complete the installation of the valve table.

[0020] (3) Beneficial effects

[0021] The present invention provides a blast furnace valve table switching device and a switching method thereof, which have the following beneficial effects:

[0022] (1) The blast furnace valve table switching device and the switching method thereof can fix the valve table by clamping when the valve table is installed through the provided clamping assembly, and use the No. 1 motor to drive the valve table to the installation position to complete the installation, which not only realizes the rapid installation of the valve table, but also solves the problem of difficulty in moving due to the excessive weight of the valve table, and also greatly improves the safety during the installation process. The installation strip is elastically and slidably connected with a covering plate, and the inner surface of the covering plate is set as a rubber surface, so that the clamping assembly can be clamped by the covering plate when clamping and fixing the valve table, which greatly increases the contact area between the clamping assembly and the valve table, thereby greatly improving the safety of the valve table during movement. The stability during movement is improved to avoid the problem of the valve table falling. At the same time, the elastic extrusion fixation can also provide a certain buffer force for the clamping component when the valve table is fixed by the clamping component, avoiding the direct rigid clamping of the clamping component to cause permanent deformation and affect the fixing effect of the valve table, greatly improving the working stability and service life of the device. At the same time, a certain elastic force is created between the valve table and the clamping component after the fixation is completed, thereby ensuring that a certain displacement space is provided between the valve table and the clamping component when the valve table vibrates during operation, thereby avoiding the resonance between the device and the valve table, which leads to the weakening of the fixing effect of the bottom plate and the top plate after long-term use, causing safety hazards.

[0023] (2) The blast furnace valve table switching device and the switching method thereof, when the driving rod rotates clockwise to drive the moving ring to move upward, initially, since the end of the No. 2 elastic telescopic plate is located in the No. 1 filling groove, that is, the bottom ring and the chassis are fixed, the driving rod begins to rotate relative to the bottom ring, thereby driving the moving ring to move upward, and when the clamping assembly moves close to the same horizontal plane as the valve table installation position, the moving ring moves to the bottom of the sliding ring and gradually squeezes the sliding ring. At this time, under the action of the squeezing force, the sliding ring begins to move upward synchronously with the moving ring, that is, it begins to squeeze the tubular bag, so that it transmits its internal air pressure to the gas collecting ring, and enters the internal cavity of the driving rod through the connecting hole on the driving rod, and finally enters the No. 1 elastic telescopic plate, causing the end of the No. 1 elastic telescopic plate to begin to squeeze the No. 2 elastic telescopic plate outward. The plate shrinks, and finally the No. 2 elastic expansion plate moves to the gap between the bottom ring and the chassis. At this time, the No. 2 elastic expansion plate loses its fixing effect on the bottom ring, that is, under the action of magnetism, the driving rod begins to drive the bottom ring to rotate synchronously, and at this time the clamping assembly drives the valve table to move to the same horizontal plane of the valve table installation position, and then with the continuous driving of the No. 1 motor, the moving ring drives the clamping assembly and the valve table and the driving rod to rotate synchronously through the support rod until the valve table rotates ninety degrees clockwise to reach the installation position. At this time, the valve table can be fixed by bolts, so as to achieve the installation of the valve table without affecting the upward movement of the valve table, and at the same time, the valve table can be automatically rotated when it needs to be rotated to the installation position, which greatly improves the automation level of the device, greatly reduces the difficulty of operation, and reduces the consumption of manpower and material resources during the installation of the valve table.

[0024] (3) The blast furnace valve table switching device and the switching method thereof, when the valve table needs to be switched, the No. 1 motor can be started in reverse after removing the fixing bolts. At this time, the No. 1 motor synchronously drives the bottom ring to rotate counterclockwise through the driving rod, thereby driving the valve table to rotate away from the installation position, and at the same time the protrusion on the bottom ring begins to move in the opposite direction along the limit groove. After rotating counterclockwise by 90 degrees, the protrusion cannot continue to rotate counterclockwise due to the limitation of the limit groove, that is, the driving rod continues to rotate counterclockwise relative to the bottom ring. At this time, the No. 1 filling groove is aligned with the No. 2 filling groove. At the same time, the moving ring begins to move downward again through the cooperation of the driving rod and the limit rod, that is, it gradually loses the squeeze on the sliding ring, prompting the sliding ring to gradually move down and reset along the limit rod, thereby causing the tubular bag to reset, and then begin to stretch from the No. 1 elastic The internal air pressure of the shrinking plate is extracted, causing the No. 1 elastic telescopic plate to begin to shrink, and then the No. 2 elastic telescopic plate begins to expand again and enter the No. 1 filling groove to complete the fixation of the bottom ring. This reciprocating cycle can realize the full automation of the movement of the valve table, further improving the automation level of the device and reducing the difficulty of operation. At the same time, the valve table is in a fixed state throughout the whole process, further improving the safety of the valve table during the replacement process. When the tubular bag is squeezed, its internal air pressure will be transmitted to the elastic telescopic rod through the hose, thereby causing the elastic telescopic rod to begin to stretch outward until the two stabilizing plates are finally connected, thereby realizing the synchronous fixation of the outer end of the mounting strip on the clamping assembly when the valve table is moved up for installation, further improving the clamping stability of the valve table by this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0026] Figure 2 It is a schematic diagram of the mobile ring and its connection structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the overall structure of the clamping assembly of the present invention;

[0028] Figure 4 This is a schematic diagram of the gearbox and its connection structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the mounting bar and its connection structure of the present invention;

[0030] Figure 6 Schematic diagram of the tubular capsule and its connection structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the gas collecting ring and its connection structure of the present invention;

[0032] Figure 8 It is a schematic diagram of the bottom ring and its connection structure of the present invention.

[0033] In the figure: 1. chassis; 2. top plate; 3. switching mechanism; 31. driving rod; 32. No. 1 motor; 33. limiting rod; 34. moving ring; 35. support rod; 36. mounting seat; 37. No. 2 motor; 38. gear box; 39. adjusting rod; 310. stabilizing rod; 311. moving plate; 312. clamping assembly; 313. mounting strip; 314. connecting rod; 315. covering plate; 316. mounting plate; 317. elastic telescopic rod; 318. stabilizing plate; 4. auxiliary mechanism; 41. top ring; 42. mounting groove; 43. bottom ring; 44. air collecting ring; 45. connecting hole; 46. tubular sac; 47. sliding ring; 48. limiting groove; 49. bump; 410. No. 1 filling groove; 411. No. 2 filling groove; 412. No. 1 elastic telescopic plate; 413. No. 2 elastic telescopic plate. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] First embodiment: Figures 1 to 8 As shown, the present invention provides a technical solution: a blast furnace valve table switching device, comprising a bottom plate 1, a top plate 2 is arranged above the bottom plate 1, and further comprising:

[0036] The switching mechanism 3 is fixedly mounted on the bottom plate 1 and the top plate 2;

[0037] Auxiliary mechanism 4, the auxiliary mechanism 4 is fixedly mounted on the switching mechanism 3;

[0038] The switching mechanism 3 includes a driving rod 31, the upper and lower ends of the driving rod 31 are respectively connected to the top plate 2 and the bottom plate 1, the driving rod 31 is set as a threaded rod, and the top of the driving rod 31 is rotatably connected to the No. 1 motor 32, and the No. 1 motor 32 is fixedly connected to the upper surface of the top plate 2.

[0039] Four limit rods 33 are set at fixed intervals around the center axis of the driving rod 31 on the outside. A moving ring 34 is slidably sleeved on the limit rod 33. The inner surface of the moving ring 34 is connected to the outer surface of the driving rod 31 through a thread. The outer surface of the moving ring 34 is fixedly connected to the support rod 35.

[0040] One end of the support rod 35 away from the movable ring 34 is fixedly connected to the mounting base 36, and the lower surface of the mounting base 36 is fixedly connected to the No. 2 motor 37. The output end of the No. 2 motor 37 is rotatably connected to the gear box 38. The gear box 38 is fixedly embedded in the interior of the mounting base 36. The output ends on both sides of the gear box 38 are symmetrically rotatably connected to the adjusting rod 39. The adjusting rod 39 is set as a threaded rod. The outer surfaces of both sides of the mounting base 36 are penetrated and fixedly connected with a stabilizing rod 310. There are two stabilizing rods 310, and the two stabilizing rods 310 are set parallel to each other.

[0041] The outer surface of the stabilizing rod 310 is slidably connected to a movable plate 311, and the bottom outer surface of the movable plate 311 is connected to the outer surface of the adjusting rod 39 by a thread. The movable plates 311 are symmetrically arranged on both sides of the mounting seat 36, and the end of the movable plate 311 away from the stabilizing rod 310 is fixedly connected to a clamping assembly 312.

[0042] When the handle is closed, the cam 314 is tightened to the locking cam 316, so that the locking cam 316 can be tightened to the locking cam 316 at the locking cam 316 position.

[0043] Second embodiment: Figures 1 to 8 As shown, the auxiliary mechanism 4 includes a top ring 41, which is rotatably connected to the lower surface of the top plate 2, and the inner surface of the top ring 41 is connected to the top outer surface of the driving rod 31 through magnetic rotation. A mounting groove 42 is provided on the upper surface of the chassis 1, and a bottom ring 43 is rotatably connected in the mounting groove 42. The inner surface of the bottom ring 43 is connected to the bottom outer surface of the driving rod 31 through magnetic rotation, wherein the upper and lower ends of the limiting rod 33 are fixedly connected to the inner surfaces of the top ring 41 and the bottom ring 43 respectively.

[0044] The top of the driving rod 31 is rotatably engaged with an air collecting ring 44, and the interior of the air collecting ring 44 is set to be hollow. The air collecting ring 44 is also fixedly sleeved on the limit rod 33. The interior of the driving rod 31 is set to be hollow, and a connecting hole 45 is opened through the top outer surface of the driving rod 31, wherein the internal cavity of the driving rod 31 is connected to the internal cavity of the air collecting ring 44 through the connecting hole 45, and the lower surface of the air collecting ring 44 is fixedly connected to a tubular bag 46, which is sleeved on the outside of the limit rod 33, and the bottom of the tubular bag 46 is fixedly connected to a sliding ring 47, which is elastically slidably sleeved on the outer surface of the limit rod 33, and the internal cavity of the air collecting ring 44 is connected to the internal cavity of the elastic telescopic rod 317 through a hose.

[0045] A limiting groove 48 is provided on the upper surface of the chassis 1, and a protrusion 49 is fixedly connected to the side surface of the bottom ring 43, and the protrusion 49 is arranged in the limiting groove 48. A filling groove No. 1 410 is provided through the upper surface of the bottom ring 43, and a filling groove No. 2 411 is provided on the upper surface of the chassis 1. The filling groove No. 1 410 and the filling groove No. 2 411 are initially arranged opposite each other. A No. 1 elastic telescopic plate 412 is fixedly connected to the filling groove No. 1 410, and a No. 2 elastic telescopic plate 413 is fixedly connected to the filling groove No. 2 411. The output end of the No. 2 elastic telescopic plate 413 is initially arranged in the No. 1 filling groove 410, and the internal cavity of the driving rod 31 is connected to the internal cavity of the No. 1 elastic telescopic plate 412.

[0046] A switching method for a blast furnace valve table switching device comprises the following steps:

[0047] S1. The entire device is fixedly mounted on the top of the blast furnace via the bottom plate 1 and the top plate 2. The valve table is then placed between the two sets of mounting bars 313 and the second motor 37 is started. The second motor 37 drives the two sets of mounting bars 313 closer together through the gear box 38 and the adjusting rod 39 to complete the clamping of the valve table.

[0048] S2. After the valve table is clamped and fixed, the No. 1 motor 32 is started. As the No. 1 motor 32 is started, the driving rod 31 is rotated, causing the support rod 35 and its moving ring 34 to move upward, that is, the valve table is driven to move upward until the valve table moves to the same horizontal plane as the installation position;

[0049] S3. As the No. 1 motor 32 drives the driving rod 31 to continue rotating, the movable ring 34 begins to rotate clockwise relative to the bottom plate 1 and the top plate 2 until it rotates 90 degrees to the installation position. At this time, the valve table can be fixed with bolts;

[0050] S4. When the valve table needs to be replaced, the bolts fixing the valve table can be removed and then the No. 1 motor 32 can be started to reverse. The No. 1 motor 32 reverses and drives the old valve table to gradually separate from the installation position of the blast furnace and move downward step by step. When the valve table reaches the bottom of the driving rod 31, the No. 2 motor 37 can be reversed to replace the old valve table.

[0051] During operation, when the valve table needs to be installed, the tubular valve table can be placed as a whole between the clamping components 312 and the No. 2 motor 37 is started. As the No. 2 motor 37 is started, the adjusting rod 39 is driven to rotate through the gear box 38. As the adjusting rod 39 rotates, the movable plate 311 is driven to move toward the mounting seat 36 along the stabilizing rod 310 through the thread, thereby driving the mounting strips 313 on both sides to move closer to each other and shrink, and finally the outer surface of the valve table is clamped and fixed by the mounting strips 313. However, after the fixation is completed, the No. 2 motor 37 is stopped and the No. 1 motor 32 is started. The No. 1 motor 32 starts to drive the driving rod 31 to rotate, and then due to the restriction of the limit rod 33, the movable ring 34 begins to move up along the limit rod 33 under the action of the thread, that is, The support rod 35 drives the clamping assembly 312 and its valve table to move up until the valve table reaches the installation position, and the two ends of the valve table are fixed by bolts to complete the installation of the valve table. When the valve table needs to be replaced, the fixing bolts at both ends of the valve table can be removed first, and then the No. 1 motor 32 is started in reverse to drive the clamping assembly 312 to drive the valve table to move down until it reaches the bottom. At this time, the No. 1 motor 32 is stopped and the No. 2 motor 37 is started in reverse so that the clamping assembly 312 loses its fixation on the valve table. The valve table can be taken out for replacement, and the above operations can be performed after the replacement is completed to complete the installation of the valve table. The clamping assembly 312 can be set to fix the valve table by clamping when the valve table is installed, and the No. 1 motor 32 is used to drive the valve table to rise to the installation position to complete the installation. The cladding plate 315 is elastically and slidably connected to the mounting bar 313, and the inner surface of the cladding plate 315 is provided with a rubber surface, so that the clamping assembly 312 is clamped by the cladding plate 315 when clamping and fixing the valve table, thereby greatly improving the contact area between the clamping assembly 312 and the valve table, thereby greatly improving the stability of the valve table during movement and avoiding the problem of the valve table falling. At the same time, the elastic extrusion fixation can also provide a certain buffering force for the clamping assembly 312 when fixing the valve table through the clamping assembly 312, thereby avoiding the clamping assembly 312 being directly and rigidly clamped and causing it to fall. The permanent deformation affects the fixing effect of the valve table, greatly improving the working stability and service life of the device, and at the same time, a certain elastic force is created between the valve table and the clamping assembly 312 after the fixing is completed, thereby ensuring that a certain displacement space is provided between the valve table and the clamping assembly 312 when the valve table vibrates during operation, thereby avoiding the resonance between the device and the valve table, which leads to the weakening of the fixing effect of the bottom plate 1 and the top plate 2 after long-term use, causing a safety hazard. When the driving rod 31 rotates clockwise to drive the movable ring 34 to move upward, initially, since the end of the second elastic expansion plate 413 is located in the first filling groove 410, that is, the bottom ring 43 and the bottom plate 1 are fixed, the driving rod 31 begins to rotate relative to the bottom ring 43, thereby driving the movable ring 34 to move upward.When the clamping assembly 312 moves close to the same horizontal plane as the valve table installation part, the moving ring 34 moves to the bottom of the sliding ring 47 and gradually squeezes the sliding ring 47. At this time, under the action of the squeezing force, the sliding ring 47 begins to move up synchronously with the moving ring 34, that is, it begins to squeeze the tubular bag 46, so that it transmits its internal air pressure to the air collecting ring 44, and enters the internal cavity of the driving rod 31 through the connecting hole 45 on the driving rod 31, and finally enters the No. 1 elastic telescopic plate 412, causing the end of the No. 1 elastic telescopic plate 412 to begin to squeeze the No. 2 elastic telescopic plate 413 outward to shrink. Finally, the No. 2 elastic telescopic plate 413 moves to the gap between the bottom ring 43 and the chassis 1. At this time, the No. 2 elastic telescopic plate 413 loses its grip on the The fixing effect of the bottom ring 43, that is, under the action of magnetism, the driving rod 31 starts to drive the bottom ring 43 to rotate synchronously, and at this time the clamping assembly 312 drives the valve table to move to the same horizontal plane of the valve table installation position, and then with the continuous driving of the No. 1 motor 32, the moving ring 34 drives the clamping assembly 312 and the valve table and the driving rod 31 to rotate synchronously through the support rod 35 until the valve table rotates ninety degrees clockwise to reach the installation position. At this time, the valve table can be fixed by bolts, so that it will not affect the upward movement of the valve table when installing the valve table, and at the same time, the valve table can be automatically rotated when it needs to be rotated to the installation position, which greatly improves the degree of automation of the device, greatly reduces the difficulty of operation, and reduces the consumption of manpower and material resources during the installation of the valve table, and the need to switch the valve When the valve table is in operation, the No. 1 motor 32 can be started in reverse after removing the fixing bolts. At this time, the No. 1 motor 32 drives the bottom ring 43 to rotate counterclockwise synchronously through the driving rod 31, thereby driving the valve table to rotate away from the installation position. At the same time, the protrusion 49 on the bottom ring 43 begins to move in the opposite direction along the limiting groove 48. After rotating counterclockwise by 90 degrees, the protrusion 49 cannot continue to rotate counterclockwise due to the limitation of the limiting groove 48, that is, the driving rod 31 continues to rotate counterclockwise relative to the bottom ring 43. At this time, the No. 1 filling groove 410 is aligned with the No. 2 filling groove 411. At the same time, the moving ring 34 starts to move downward again through the cooperation of the driving rod 31 and the limiting rod 33, that is, it gradually loses the squeeze on the sliding ring 47, prompting the sliding ring 47 to gradually move down and reset along the limiting rod 33, thereby The tubular bag 46 starts to reset, and then starts to extract air pressure from the inside of the No. 1 elastic telescopic plate 412, causing the No. 1 elastic telescopic plate 412 to start to shrink, and then the No. 2 elastic telescopic plate 413 starts to expand again into the No. 1 filling groove 410 to complete the fixation of the bottom ring 43. In this reciprocating cycle, the movement of the valve table can be fully automated, further improving the automation level of the device and reducing the difficulty of operation. At the same time, the valve table is in a fixed state throughout the whole process, further improving the safety of the valve table during replacement. When the tubular bag 46 is squeezed, the internal air pressure will be transmitted to the elastic telescopic rod 317 through the hose, thereby causing the elastic telescopic rod 317 to start to stretch outward until the two stabilizing plates 318 are finally plugged in.This allows the outer end of the mounting strip 313 on the clamping assembly 312 to be fixed synchronously when the valve table is moved up for installation, further improving the clamping stability of the device on the valve table.

[0052] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A blast furnace valve table switching device, comprising a chassis (1), characterized in that: A top plate (2) is provided above the bottom plate (1), and further comprises: A switching mechanism (3), wherein the switching mechanism (3) is fixedly mounted on the bottom plate (1) and the top plate (2); an auxiliary mechanism (4), wherein the auxiliary mechanism (4) is fixedly mounted on the switching mechanism (3); The switching mechanism (3) comprises a driving rod (31), wherein the upper and lower ends of the driving rod (31) are respectively connected to the top plate (2) and the bottom plate (1) in a rotational manner, the driving rod (31) being configured as a threaded rod, the top of the driving rod (31) being connected to a first motor (32) in a rotational manner, and the first motor (32) being fixedly connected to the upper surface of the top plate (2).

2. A blast furnace valve table switching device according to claim 1, characterized in that: Four limiting rods (33) are arranged at fixed intervals on the outer side of the driving rod (31) around its central axis, and a moving ring (34) is slidably sleeved on the limiting rod (33). The inner surface of the moving ring (34) is connected to the outer surface of the driving rod (31) through a thread, and the outer surface of the moving ring (34) is fixedly connected to a support rod (35).

3. A blast furnace valve table switching device according to claim 2, characterized in that: One end of the support rod (35) away from the moving ring (34) is fixedly connected to a mounting seat (36), and a No. 2 motor (37) is fixedly connected to the lower surface of the mounting seat (36). The output end of the No. 2 motor (37) is rotatably connected to a gear box (38), and the gear box (38) is fixedly embedded in the interior of the mounting seat (36). The output ends of both sides of the gear box (38) are symmetrically rotatably connected to adjustment rods (39), and the adjustment rods (39) are set as threaded rods. Stabilizing rods (310) are fixedly connected to the outer surfaces of both sides of the mounting seat (36). Two stabilizing rods (310) are provided, and the two stabilizing rods (310) and the adjusting rods (39) are set in parallel with each other.

4. A blast furnace valve table switching device according to claim 3, characterized in that: The outer surface of the stabilizing rod (310) is slidably sleeved with a movable plate (311), the bottom outer surface of the movable plate (311) is connected to the outer surface of the adjusting rod (39) by means of a thread, the movable plates (311) are symmetrically arranged on both sides of the mounting seat (36), and one end of the movable plate (311) away from the stabilizing rod (310) is fixedly connected to a clamping assembly (312).

5. The blast furnace valve table switching device according to claim 4, characterized in that: The clamping assembly (312) includes a mounting bar (313), wherein the mounting bars (313) are arranged in pairs in parallel in an upper and lower direction, and the mounting bars (313) are arranged in an arc shape. The two ends of the mounting bars (313) in the same group are penetrated and fixedly connected with a connecting rod (314), wherein the two groups of the mounting bars (313) are combined into a ring shape, and the outer surface of the connecting rod (314) on the side close to the stabilizing bar (310) is fixedly connected to the outer surface of the end of the moving plate (311) away from the stabilizing bar (310), and a covering plate (315) is provided on the inner side of the mounting bar (313), and the covering plate (315) is fixedly connected to the outer surface of the moving plate (311) away from the stabilizing bar (310). 5) is set to an arc shape, the outer surface of the covering plate (315) is elastically slidably connected to the outer surface of the mounting bar (313) through a connecting rod, wherein the inner surface of the covering plate (315) is set to a rubber surface, the outer surface of the mounting bar (313) is fixedly connected to the mounting plate (316), the interior of the mounting plate (316) is fixedly inlaid with an elastic telescopic rod (317), and the elastic telescopic rod (317) is set to an arc shape, wherein the outer surface of the connecting rod (314) on the side away from the mounting seat (36) is fixedly connected to the stabilizing plate (318), and a through hole is reserved on the stabilizing plate (318).

6. The blast furnace valve table switching device according to claim 5, characterized in that: The auxiliary mechanism (4) includes a top ring (41), the top ring (41) is rotatably connected to the lower surface of the top plate (2), the inner surface of the top ring (41) is connected to the top outer surface of the driving rod (31) through magnetic rotation, the upper surface of the bottom plate (1) is provided with a mounting groove (42), a bottom ring (43) is rotatably connected in the mounting groove (42), the inner surface of the bottom ring (43) is connected to the bottom outer surface of the driving rod (31) through magnetic rotation, wherein the upper and lower ends of the limiting rod (33) are fixedly connected to the inner surfaces of the top ring (41) and the bottom ring (43), respectively.

7. The blast furnace valve table switching device according to claim 6, characterized in that: The top of the driving rod (31) is rotatably engaged with an air collecting ring (44), the interior of the air collecting ring (44) is set to be hollow, and the air collecting ring (44) is fixedly sleeved on the limiting rod (33). The interior of the driving rod (31) is set to be hollow, and a connecting hole (45) is opened through the top outer surface of the driving rod (31), wherein the internal cavity of the driving rod (31) is connected to the internal cavity of the air collecting ring (44) through the connecting hole (45). The lower surface of the air collecting ring (44) is fixedly connected to a tubular bag (46), and the tubular bag (46) is sleeved on the outside of the limiting rod (33). The bottom of the tubular bag (46) is fixedly connected to a sliding ring (47), and the sliding ring (47) is elastically slidably sleeved on the outer surface of the limiting rod (33). The internal cavity of the air collecting ring (44) is connected to the internal cavity of the elastic telescopic rod (317) through a hose.

8. The blast furnace valve table switching device according to claim 7, characterized in that: A limiting groove (48) is provided on the upper surface of the chassis (1), a protrusion (49) is fixedly connected to the side surface of the bottom ring (43), and the protrusion (49) is arranged in the limiting groove (48). A first filling groove (410) is provided through the upper surface of the bottom ring (43), and a second filling groove (411) is provided on the upper surface of the chassis (1). The first filling groove (410) and the second filling groove (411) are initially arranged opposite each other. A first elastic expansion plate (412) is fixedly connected in the first filling groove (410), and a second elastic expansion plate (413) is fixedly connected in the second filling groove (411). The output end of the second elastic expansion plate (413) is initially arranged in the first filling groove (410), and the internal cavity of the driving rod (31) is communicated with the internal cavity of the first elastic expansion plate (412).

9. A switching method for a blast furnace valve table switching device, comprising the blast furnace valve table switching device according to claim 8, characterized in that: The following steps are involved: S1. The entire device is fixedly mounted on the top of the blast furnace through the bottom plate (1) and the top plate (2). Then, the valve table is placed between the two sets of mounting bars (313) and the second motor (37) is started. The second motor (37) is started to drive the two sets of mounting bars (313) to move closer to each other through the gear box (38) and the adjusting rod (39) to complete the clamping of the valve table. S2. After the valve table is clamped and fixed, the No. 1 motor (32) is started. As the No. 1 motor (32) is started, the driving rod (31) is rotated to cause the support rod (35) and its moving ring (34) to move upward, thereby driving the valve table to move upward until the valve table moves to the same horizontal plane as the installation position; S3. As the No. 1 motor (32) drives the driving rod (31) to continuously rotate, the moving ring (34) begins to rotate clockwise relative to the bottom plate (1) and the top plate (2) until it rotates ninety degrees to the installation position. At this time, the valve table can be fixed by bolts; S4. When the valve table needs to be replaced, the bolts fixing the valve table can be removed and the No. 1 motor (32) can be started to rotate in reverse. The No. 1 motor (32) rotates in reverse to drive the old valve table to gradually separate from the installation position of the blast furnace and move downward. When the valve table reaches the bottom of the driving rod (31), the No. 2 motor (37) can be reversed to replace the old valve table.

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