A ladle rotating device for steelmaking

Abstract

The present invention relates to the technical field of steelmaking equipment, and discloses a ladle rotating device for steelmaking, comprising a base, the upper outer surface of the base is rotatably connected to a rotating platform, the upper outer surface of the rotating platform is fixedly connected to a holder on both sides, the inner surface of the holder is slidably connected to a fixed plate, the lower outer surface of the fixed plate is fixedly connected to a telescopic gas rod, the outer cylindrical surface of the telescopic gas rod is sleeved with a buffer spring, the lower end of the telescopic gas rod passes through the interior of the rotating platform and is connected to a connecting pipe, the outer surfaces of both sides of the rotating platform are fixedly connected to support blocks, and the upper and lower outer surfaces of the support blocks are fixedly connected to support rods. The ladle rotating device for steelmaking has the advantages of being easy to fix the ladle and improving its placement stability, and solves the problem of the ladle tilting due to unstable placement during placement and the lack of protective measures on both sides during placement.

Description

Technical Field

[0001] The invention relates to the technical field of steelmaking equipment, in particular to a ladle rotating device for steelmaking. Background Art

[0002] The ladle turret is the most commonly used equipment for carrying and supporting ladles for pouring in modern continuous casting. Its turret arm can hold two ladles at the same time, one for pouring and the other in a waiting state. Before pouring, a bridge crane is used to place the ladle filled with molten steel on the turret. The turret rotates to make the ladle stop above the tundish to supply molten steel. The empty ladle after pouring is transported back to the molten steel receiving span through the turret, thus realizing the transportation of molten steel in different spans.

[0003] When using the existing ladle turntable, the ladle is usually placed at the fork at both ends of the turntable, and then covered and the turntable is rotated to move the large ladle to the position to be poured. However, in actual use, the large ladle may tilt due to being placed too quickly, causing molten steel to leak and endangering the lives of workers. In addition, there are no corresponding protective devices on both sides of the existing steelmaking furnace. During the ladle pouring process, as its weight decreases, the ladle tilts, affecting subsequent crane transportation. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a ladle rotating device for steelmaking, which has the advantages of facilitating the fixation of the ladle and improving its placement stability, thereby solving the problems of the ladle tilting due to unstable placement during placement and the lack of protective measures on both sides during placement.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a ladle rotating device for steelmaking, comprising a base, an upper outer surface of the base is rotatably connected to a rotating platform, both sides of the upper outer surface of the rotating platform are fixedly connected to a clamping seat, the inner surface of the clamping seat is slidably connected to a fixing plate, the lower outer surface of the fixing plate is fixedly connected to a telescopic gas rod, the outer circular surface of the telescopic gas rod is sleeved with a buffer spring, the lower end of the telescopic gas rod passes through the interior of the rotating platform and is connected to a connecting pipe, the outer surfaces of both sides of the rotating platform are fixedly connected to support blocks, the upper and lower outer surfaces of the support block are fixedly connected to a support rod, the support rod is provided with a telescopic rod at one end of the support block, an air duct is opened inside the support rod, and an air outlet is opened inside the inner surface of the air duct at one end away from the support block.

[0006] Preferably, the telescopic rod includes a first protective rod and a second protective rod, the first protective rod is provided with an air cavity inside, the second protective rod is provided with a connecting groove inside, the end of the outer circular surface of the first telescopic rod away from the support rod is fixedly connected to the first support rod, the first support rod is provided with an inner cavity inside, and the inner surface of the inner cavity on the first support rod is slidably connected to the second support rod.

[0007] Preferably, both sides of the rotating platform are in a U-shaped fork structure, and the number of the clamping seats is four, and they are respectively located at the upper ends of both sides of the two U-shaped forks and are symmetrically arranged.

[0008] Preferably, there are two telescopic gas rods inside a single holder, and the outer circumferential surfaces of both rods are sleeved with joint buffer springs. The inside of the telescopic gas rod is interconnected with the airway through a connecting pipe, and the airway in the support rod is interconnected with the air outlet.

[0009] Preferably, the second protective rod is located inside the first protective rod and is slidably connected to the inner surface of the internal air cavity of the first protective rod. The internal ventilation groove of the second protective rod is connected to the air cavity. The air cavity on the first protective rod corresponds to and is connected to the air outlet hole on the support rod.

[0010] Preferably, the interiors of the first support rod and the second support rod are both hollow structures, and the inner surface of the inner cavity on the first support rod is slidably connected to the second support rod and communicates with the interior of the second support rod.

[0011] Compared with the prior art, the present invention provides a ladle rotating device for steelmaking, which has the following beneficial effects:

[0012] 1. The ladle rotating device for steelmaking is provided with a clamping seat, a fixing block, a telescopic gas rod and a buffer spring, so that the ladle can be lowered steadily and slowly during the placement process, and the problem of the ladle being separated from the clamping seat and flipping due to rapid placement on the surface is improved, thereby improving its stability during the placement process.

[0013] 2. The steel ladle rotating device for steelmaking is provided with a support block, a first protective rod, a second protective rod, a first support rod, and a second support rod, so that after the ladle is placed, it is stably framed in the U-shaped fork of the rotating platform under the action of the first support rod and the first protective rod, thereby improving the stability of the ladle during the placement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a schematic diagram of the internal structure of the card holder and the support rod of the present invention;

[0016] Figure 3 This is a schematic diagram of the structural relationship between the support rod and the telescopic rod of the present invention;

[0017] Figure 4 It is a schematic diagram of the internal structure of the support rod and the telescopic rod of the present invention.

[0018] Among them: 1. base; 2. rotating platform; 3. holder; 4. fixing plate; 5. support rod; 6. telescopic rod; 7. telescopic gas rod; 8. buffer spring; 51. air duct; 52. connecting pipe; 53. support block; 54. air outlet; 61. first protective rod; 62. second protective rod; 63. first support rod; 64. air cavity; 65. ventilation groove; 631. inner cavity; 632. second support rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0020] Embodiment 1, as Figure 1-3As shown, a ladle rotating device for steelmaking comprises a base 1, the upper end outer surface of the base 1 is rotatably connected to a rotating platform 2, both sides of the upper end outer surface of the rotating platform 2 are fixedly connected to a clamping seat 3, the inner surface of the clamping seat 3 is slidably connected to a fixing plate 4, the lower end outer surface of the fixing plate 4 is fixedly connected to a telescopic gas rod 7, the outer circumferential surface of the telescopic gas rod 7 is sleeved with a buffer spring 8, the lower end of the telescopic gas rod 7 passes through the interior of the rotating platform 2 and is connected to a connecting pipe 52, and the outer surfaces of both sides of the rotating platform 2 are fixedly connected There is a support block 53, the upper and lower outer surfaces of the support block 53 are fixedly connected with a support rod 5, one end of the support rod 5 is provided with a telescopic rod 6, an air duct 51 is opened inside the support rod 5, and an air outlet 54 is opened inside the inner surface of the air duct 51 away from the support block 53. Both sides of the rotary platform 2 are U-shaped fork structures, the number of the card seat 3 is four, and they are respectively located at the upper ends of both sides of the two U-shaped forks, and are symmetrically arranged. The number of telescopic gas rods 7 inside a single card seat 3 is two, and The outer circumference thereof is sleeved with a joint buffer spring 8. The inside of the telescopic gas rod 7 is communicated with the airway 51 through a connecting pipe 52. The airway 51 in the support rod 5 is communicated with the air outlet 54. The large steel ladle is placed on the fork seat 3 of the rotary platform 2 through a steel plant special gantry crane. At this time, the blocks arranged on both sides of the steel ladle will be stuck in the inside of the seat 3 and interact with each other. As the steel ladle moves downward, the blocks will squeeze the fixed plate 4 located inside the seat 3. The fixed plate 4 is subjected to pressure and begins to squeeze the telescopic gas rod 7 and the buffer spring 8. As the telescopic gas rod 7 contracts, the gas inside it The gas will enter the air channel 51 on the support rod 5 through the connecting pipe 52. As the ladle continues to move downward, the gas inside the telescopic gas rod 7 is pressurized to enter the air cavity 64 of the first protective rod 61 through the air outlet 54, and then enter the ventilation groove 65 of the second protective rod 62. Under the action of the gas, the second protective rod 62 will begin to slide in the air cavity 64 on the first protective rod 61, so that the telescopic rod 6 is extended, and the steel-making furnace is slowly lowered by the interception of the fixed block, thereby ensuring the stability of the descent of the steel-making furnace.

[0021] Embodiment 2, as Figure 1-4As shown, the telescopic rod 6 includes a first protective rod 61 and a second protective rod 62. An air cavity 64 is provided inside the first protective rod 61, and a connecting groove is provided inside the second protective rod 62. The end of the outer circumferential surface of the first telescopic rod 6 away from the support rod 5 is fixedly connected to the first support rod 63. An inner cavity 631 is provided inside the first support rod 63. The inner surface of the inner cavity 631 on the first support rod 63 is slidably connected to the second support rod 632. The second protective rod 62 is located inside the first protective rod 61 and is slidably connected to the inner surface of the air cavity 64 inside the first protective rod. The internal ventilation groove 65 of the second protective rod is communicated with the air cavity 64. The air cavity 64 on the first protective rod 61 corresponds to and is communicated with the air outlet 54 on the support rod 5. The first support rod 63 is connected to the second protective rod 62. The interiors of the two support rods 632 are both hollow structures. The inner surface of the inner cavity 631 on the first support rod 63 is slidably connected to the second support rod 632, and it is connected to the interior of the second support rod 632. During the extension of the telescopic rod 6, the gas inside it will begin to inflate the first support rod 63 under the pressure of the telescopic gas rod 7, so that the first support rod 63 and the second support rod 632 are completely extended, so that the second support rod 632 slides in the inner cavity 631 on the first support rod 63 until the sliding rod inside the second support rod 632 conflicts with the ladle. At this point, the telescopic rod 6 is completely extended, and the fixed plate 4 is pressed to the bottom of the holder 3, thereby completing the protection of the ladle, improving the stability of the ladle placed on the rotary platform 2, and facilitating the stability of the subsequent steelmaking furnace during use.

[0022] Working principle: During operation, a large steel ladle is placed on the fork seat 3 of the rotary platform 2 through a steel plant's special gantry crane. At this time, the blocks arranged on both sides of the steel ladle will be stuck in the seat 3 and interact with each other. As the steel ladle moves downward, the blocks will squeeze the fixed plate 4 inside the seat 3. The fixed plate 4 is subjected to pressure and begins to squeeze the telescopic gas rod 7 and the buffer spring 8. As the telescopic gas rod 7 contracts, the gas inside it will enter the air channel 51 on the support rod 5 through the connecting pipe 52. As the steel ladle continues to move downward, the gas inside the telescopic gas rod 7 is subjected to pressure and enters the air cavity 64 of the first protective rod 61 through the air outlet 54, and then enters the ventilation groove 65 of the second protective rod 62. Under the action of the gas, the second protective rod 62 will begin to move on the first protective rod 61 The telescopic rod 6 slides in the air cavity 64, so that the telescopic rod 6 is extended. At this time, the two support rods 5 on the support block 53 and the telescopic rods 6 thereon begin to extend, and the steel-making furnace located at the fork on the rotating platform 2 is frame-intercepted. During the extension of the telescopic rod 6, the gas inside it will begin to inflate the first support rod 63 under the pressure of the telescopic gas rod 7, so that the first support rod 63 and the second support rod 632 are extended, so that the second support rod 632 slides in the inner cavity 631 on the first support rod 63 until the sliding rod inside the second support rod 632 conflicts with the ladle. At this point, the telescopic rod 6 is extended, and the fixed plate 4 is pressed to the bottom of the holder 3, so as to complete the protection of the ladle and improve the stability of the ladle placed on the rotating platform 2.

[0023] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ladle rotating device for steelmaking, comprising a base (1), characterized in that: The upper outer surface of the base (1) is rotatably connected to a revolving platform (2), both sides of the upper outer surface of the revolving platform (2) are fixedly connected to a holder (3), the inner surface of the holder (3) is slidably connected to a fixing plate (4), the lower outer surface of the fixing plate (4) is fixedly connected to a telescopic gas rod (7), the outer circumferential surface of the telescopic gas rod (7) is sleeved with a buffer spring (8), the lower end of the telescopic gas rod (7) passes through the interior of the revolving platform (2) and is connected to a connecting pipe (52), the outer surfaces of both sides of the revolving platform (2) are fixedly connected to support blocks (53), the upper and lower outer surfaces of the support block (53) are fixedly connected to a support rod (5), one end of the support rod (5) away from the support block (53) is provided with a telescopic rod (6), an air passage (51) is provided inside the support rod (5), and an air outlet hole (54) is provided inside the inner surface of the air passage (51) at one end away from the support block (53); The telescopic rod (6) comprises a first protective rod (61) and a second protective rod (62); an air cavity (64) is provided inside the first protective rod (61); a ventilation groove is provided inside the second protective rod (62); an end of the outer circumferential surface of the telescopic rod (6) away from the support rod (5) is fixedly connected to the first support rod (63); an inner cavity (631) is provided inside the first support rod (63); and the inner surface of the inner cavity (631) of the first support rod (63) is slidably connected to the second support rod (632); The interior of the telescopic gas rod (7) is connected to the air passage (51) via a connecting pipe (52); The second protection rod (62) is located inside the first protection rod (61) and is slidably connected to the inner surface of the air cavity (64) inside the first protection rod. The ventilation groove (65) inside the second protection rod is connected to the air cavity (64). The air cavity (64) inside the first protection rod (61) corresponds to and is connected to the air outlet hole (54) on the support rod (5).

2. The ladle rotating device for steelmaking according to claim 1, characterized in that: Both sides of the rotary platform (2) are in a U-shaped fork structure, and the number of the clamping seats (3) is four, and they are respectively located at the upper ends of both sides of the two U-shaped forks and are symmetrically arranged.

3. The ladle rotating device for steelmaking according to claim 1, characterized in that: There are two telescopic gas rods (7) inside a single card seat (3), and the outer circumferential surfaces of both of the telescopic gas rods (7) are sleeved with buffer springs (8). The air passage (51) and the air outlet hole (54) in the support rod (5) are in communication with each other.

4. The ladle rotating device for steelmaking according to claim 1, characterized in that: The interiors of the first support rod (63) and the second support rod (632) are both hollow structures, the inner surface of the inner cavity (631) of the first support rod (63) is slidably connected to the second support rod (632), and the inner cavity (631) is communicated with the interior of the second support rod (632).

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