A universal changing platform for various sizes of tundish bushings

Abstract

The utility model relates to a steelmaking technical field especially relates to a kind of replacement platform of multiple sizes steel outlet sleeve universal. The utility model discloses technical scheme as a kind of replacement platform of multiple sizes steel outlet sleeve universal, including bottom plate, forklift pin, side rail, top plate, fixed ring and guide rail etc.;Two forklift pins are fixedly connected with the linear array of bottom plate bottom portion, the side rail is fixedly connected with the both sides of bottom plate top portion, the top plate is fixedly connected with the top portion of two side rails, the fixed ring is fixedly connected with the both sides of top plate symmetrically, the guide rail is fixedly connected with the bottom of top plate. The utility model is quickly connected with forklift through the two forklift pins of bottom plate bottom portion, realizes the flexible handling and accurate positioning of equipment in workshop, improves operation efficiency, reduces sliding friction by the cooperation structure of slider and roller, guide rail, improves the smoothness of sliding, is convenient for adapting different length of steel outlet sleeve, by hand-operated hoist chain sling hoisting and self-locking function.

Description

Technical Field

[0001] This utility model relates to the field of steelmaking technology, and in particular to a universal replacement platform for steel tapping sleeves of various sizes. Background Technology

[0002] In the steelmaking process, the tapping sleeve serves as a crucial channel for molten steel to flow from the tundish into the crystallizer, and its performance directly affects the purity of the molten steel and the final quality of the steel. However, with prolonged use, the tapping sleeve, due to the constant scouring of high-temperature molten steel, is prone to diameter expansion. This can cause the slag-blocking cone or ball to become ineffective in preventing slag from entering the molten steel, thereby affecting the purity of the molten steel and potentially leading to a series of steel quality problems.

[0003] When the steel casing no longer meets the usage requirements, it needs to be replaced. Old steel casings typically require diameter enlargement through drilling and grinding to ensure proper installation of the new casing. This process is not only time-consuming and labor-intensive but also demands extremely high precision; any deviation can prevent the new casing from being installed correctly. Traditional replacement devices are mostly fixed designs, only compatible with specific sizes of steel casings. Different clamps or adjusting supports are required for different casing specifications, which is both time-consuming and inconvenient, severely impacting replacement efficiency.

[0004] Therefore, it is necessary to design a universal replacement platform for steel sleeves of various sizes to solve the above-mentioned technical problems. Utility Model Content

[0005] To overcome the shortcomings of traditional replacement devices, which require drilling and enlarging the old casing before installing the new casing when the steel casing fails, which is time-consuming, labor-intensive, and requires high precision, and is prone to installation failure due to errors, and which are fixed and only suitable for specific sizes, requiring the replacement of clamps or adjustment brackets when replacing casings of different specifications, this utility model provides a universal replacement platform for steel casings of various sizes.

[0006] The technical solution of this utility model is as follows: a universal replacement platform for steel sleeves of various sizes, including a base plate, forklift pins, side rails, a top plate, fixing rings, guide rails, sliders, rollers, connecting blocks, and a hand chain hoist. Multiple forklift pins are fixedly connected to the bottom of the base plate in a linear array. Side rails are fixedly connected to both sides of the top of the base plate. The top plate is fixedly connected to the top of the two side rails. Fixing rings are symmetrically fixedly connected to both sides of the top plate. Guide rails are fixedly connected to the bottom of the top plate. Sliders are slidably connected to the guide rails. Rollers are rotatably connected to both sides of the top of the sliders. A connecting block is fixedly connected to the lower part of the slider. A hand chain hoist is provided on the right side of the connecting block.

[0007] In one embodiment, the system also includes mounting blocks, lamp covers, and lamp bodies. Two sets of mounting blocks are symmetrically fixedly connected to both sides of the bottom of the base plate. Each set of mounting blocks consists of two blocks. A lamp cover is fixedly connected to each set of two mounting blocks. A lamp body is fixedly connected to both sides of the bottom of each lamp cover.

[0008] In one embodiment, a wedge plate is also included, with the wedge plate fixedly connected to the lower part of the base plate.

[0009] In one embodiment, the top of the wedge plate has multiple anti-slip grooves.

[0010] In one embodiment, the system further includes a guide groove plate, a movable frame, guide columns, springs, a movable plate, a handle, and a guide cylinder. The guide groove plate is fixedly connected to the top of the base plate. The movable frame is slidably connected inside the guide groove plate. Guide columns are fixedly connected to both sides of the upper part of the movable frame. A movable plate is slidably connected between the two guide columns. Springs are connected to both sides of the movable plate and the movable frame. The two springs are wound around the corresponding guide columns. A handle is fixedly connected to the top of the movable plate. Guide cylinders are rotatably connected to both sides of the lower part of the movable plate.

[0011] In one embodiment, an arc-shaped plate for placing steel sleeves of different diameters is fixed on the top of the mobile frame.

[0012] Beneficial effects: This utility model enables quick docking with forklifts via two forklift pins at the bottom of the base plate, achieving flexible handling and accurate positioning of the equipment within the workshop, thus improving work efficiency. The cooperative structure of the slider, roller, and guide rail reduces sliding friction and improves smoothness, facilitating the adaptation to steel sleeves of different lengths. The lifting and self-locking functions of the hand-operated hoist and chain hoist ensure stable suspension of the steel sleeve in the air, guaranteeing installation accuracy and operational safety. The safety rope connected by the fixing ring on the top plate effectively prevents deviation or slippage during sleeve lifting. The lighting device enhances visibility of the work area and improves operational safety. The spring-driven guide cylinder structure enables automatic clamping and guiding adjustment of the steel sleeve, improving installation convenience and positioning accuracy. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the top plate, fixing ring, and guide rail components of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the slider, roller, and connecting block components of this utility model.

[0016] Figure 4This is a three-dimensional structural diagram of the roller, connecting block, and chain hoist components of this utility model.

[0017] Figure 5 This is a three-dimensional structural diagram of the top plate, mounting block, and lamp body of this utility model.

[0018] Figure 6 This is a three-dimensional structural diagram of the mounting block, lampshade, and lamp body of this utility model.

[0019] Figure 7 This is a three-dimensional structural diagram of the wedge plate, guide groove plate, and moving frame components of this utility model.

[0020] Figure 8 This is a three-dimensional structural diagram of the spring, movable plate, and handle components of this utility model.

[0021] The markings in the diagram are: 1-base plate, 101-forklift pin, 2-side rail, 3-top plate, 4-fixing ring, 5-guide rail, 6-slider, 7-roller, 8-connecting block, 9-hand chain hoist, 10-mounting block, 11-lamp cover, 12-lamp body, 13-wedge plate, 14-guide groove plate, 15-moving frame, 16-guide column, 17-spring, 18-moving plate, 19-handle, 20-guide cylinder. Detailed Implementation

[0022] Example: A universal replacement platform for various sizes of steel-outlet sleeves, such as... Figures 1-8 As shown, it includes a base plate 1, forklift pins 101, side rails 2, top plate 3, fixing rings 4, guide rails 5, sliders 6, rollers 7, connecting blocks 8, a hand chain hoist chain hoist 9, and wedge plates 13. Four forklift pins 101 are installed in a straight array at the bottom of the base plate 1 by screws. Side rails 2 are installed on the left and right sides of the top of the base plate 1 by screws. The top plate 3 is installed on the top of the two side rails 2 by screws. Fixing rings 4 are installed on the front and back sides of the top plate 3 by screws. The bottom of the top plate 3 is fixedly connected to the guide rails 5. Sliders 6 are slidably connected to the guide rails 5. Rollers 7 are rotatably connected to the top of the front and back sides of the sliders 6. Connecting blocks 8 are installed on the lower part of the sliders 6 by screws. A hand chain hoist chain hoist 9 is provided on the lower right side of the connecting blocks 8. Wedge plates 13 are installed on the lower front side of the base plate 1 by screws. Multiple anti-slip grooves are opened on the top surface of the wedge plates 13.

[0023] like Figure 1 , Figure 5 and Figure 6 As shown, it also includes mounting blocks 10, lamp covers 11 and lamp bodies 12. Two sets of mounting blocks 10 are symmetrically installed on the left and right sides of the bottom of the base plate 1 by screws. There are two mounting blocks 10 in each set. A lamp cover 11 is installed in front of each set of two mounting blocks 10 by screws. A lamp body 12 is installed on the bottom front and back sides of each lamp cover 11 by screws.

[0024] like Figure 7 and Figure 8 As shown, it also includes a guide groove plate 14, a movable frame 15, a guide post 16, a spring 17, a movable plate 18, a handle 19, and a guide cylinder 20. The guide groove plate 14 is installed on the rear top of the base plate 1 by screws. The movable frame 15 is slidably connected inside the guide groove plate 14. An arc-shaped plate for placing steel sleeves of different diameters is fixed on the top of the movable frame 15. Guide posts 16 are welded on the left and right sides of the upper part of the movable frame 15. A movable plate 18 is slidably connected between the two guide posts 16. Springs 17 are connected on the left and right sides of the movable plate 18 and the movable frame 15. The two springs 17 are wound around the corresponding guide posts 16. The top of the movable plate 18 is fixedly connected to 19. The front and rear sides of the lower part of the movable plate 18 are rotatably connected to the guide cylinder 20.

[0025] The changing table can be quickly connected to a forklift via two forklift pins 101, enabling flexible transport of the equipment within the workshop. After the forklift transports the changing table to the steel outlet changing station, the operator levels and positions the equipment. The base plate 1, as the main load-bearing structure of the entire changing table, ensures stable placement of the equipment under high temperature and heavy load conditions. The changing table is equipped with a slider 6 structure, which, through rollers 7 and guide rails 5, can slide along the direction of guide rails 5, achieving flexible adjustment of the lateral position. The rollers 7 effectively reduce friction during sliding, improving the smoothness of sliding and operational efficiency. The operator can manually push the slider 6 to the appropriate position according to the installation position of the steel outlet sleeve. When replacing the old steel outlet sleeve or installing the new sleeve, the operator uses a hand-operated chain hoist 9 to complete the lifting, positioning, and raising / lowering operations of the sleeve. The hand-operated chain hoist 9 has a self-locking function, ensuring stable suspension of the sleeve in the air for accurate installation. Due to the large weight of the steel outlet sleeve, the hand-operated chain hoist 9... The load-bearing capacity is typically 1 to 3 tons, effectively ensuring operational safety. The slider 6 can be adjusted on the guide rail 5 to accommodate steel sleeves of different lengths. The chain hoist 9 has a height adjustment function to accommodate different installation heights. A fixing ring 4 is provided on the top plate 3 for connecting safety ropes, preventing the sleeve from shifting or slipping during lifting. After the replacement platform is in place, the operator turns on the lighting switch. Current is transmitted through the lines to each lamp body 12. Once lit, the light is diffused through the lampshade 11, illuminating the area below the replacement platform and the steel outlet working area, improving operational visibility. The operator pulls the handle 19 upwards, then pulls the moving plate 18 outwards. At this time, the spring 17 is compressed. The steel sleeve is then passed through the arc-shaped plate. After releasing the handle 19, the spring 17's rebound force pushes the moving plate 18, causing the guide cylinder 20 to approach the surface of the steel sleeve. The moving frame 15 can then be slid left and right along the guide groove plate 14 to adjust the guide position and ensure the accuracy of the sleeve installation.

Claims

1. A universal replacement platform for steel sleeves of various sizes, characterized in that: It includes a base plate (1), forklift pins (101), side rails (2), top plate (3), fixing rings (4), guide rails (5), sliders (6), rollers (7), connecting blocks (8) and hand chain hoists (9). The bottom of the base plate (1) is fixedly connected to multiple forklift pins (101) in a straight array. The top of the base plate (1) is fixedly connected to both sides of the top. The top of the two side rails (2) is fixedly connected to the top of the top plate (3). The top of the top plate (3) is fixedly connected to both sides of the top plate (3) symmetrically. The bottom of the top plate (3) is fixedly connected to the guide rail (5). The guide rail (5) is slidably connected to the slider (6). The top of the slider (6) is rotatably connected to both sides of the top. The bottom of the slider (6) is fixedly connected to the connecting block (8). The right side of the connecting block (8) is provided with a hand chain hoist (9).

2. The universal replacement platform for steel outlet sleeves of various sizes as described in claim 1, characterized in that: It also includes mounting blocks (10), lampshades (11) and lamp bodies (12). Two sets of mounting blocks (10) are symmetrically fixedly connected on both sides of the bottom of the base plate (1). There are two mounting blocks (10) in each set. A lampshade (11) is fixedly connected in front of each set of two mounting blocks (10). A lamp body (12) is fixedly connected on both sides of the bottom of each lampshade (11).

3. The universal replacement platform for steel outlet sleeves of various sizes as described in claim 2, characterized in that: It also includes a wedge plate (13), and the bottom plate (1) is fixedly connected to the wedge plate (13).

4. The universal replacement platform for steel outlet sleeves of various sizes as described in claim 3, characterized in that: The top of the wedge plate (13) has multiple anti-slip grooves.

5. A universal replacement platform for steel outlet sleeves of various sizes as described in claim 4, characterized in that: It also includes a guide groove plate (14), a movable frame (15), a guide column (16), a spring (17), a movable plate (18), a handle (19), and a guide cylinder (20). The top of the base plate (1) is fixedly connected to the guide groove plate (14). The movable frame (15) is slidably connected inside the guide groove plate (14). The upper sides of the movable frame (15) are fixedly connected to the guide columns (16). The movable plate (18) is slidably connected between the two guide columns (16). The movable plate (18) and the movable frame (15) are connected to the two sides of the movable plate (18). The two springs (17) are wound around the corresponding guide columns (16). The top of the movable plate (18) is fixedly connected to the handle (19). The lower sides of the movable plate (18) are rotatably connected to the guide cylinder (20).

6. A universal replacement platform for steel outlet sleeves of various sizes as described in claim 5, characterized in that: The top of the movable frame (15) is fixed with an arc-shaped plate for placing steel sleeves of different diameters.

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