An auxiliary welding device for repairing the lower part of a crucible protective shell

Abstract

The utility model discloses a kind of auxiliary welding devices of lower part of repair crucible protective shell, it is related to fine aluminium segregation furnace production equipment technical field, including inner support cylinder, outer limiting cylinder, top cover and top silk, the inner support cylinder and the outer limiting cylinder are fixed in the lower end of the top cover and coaxial line setting, the upper end of the top cover is fixed with hoisting part, annular space is formed between the inner support cylinder and the outer limiting cylinder, steel plate entrance that the annular space is communicated is equipped on the lateral wall of the outer limiting cylinder, multiple top silk holes are spaced apart and arranged on the lateral wall of the outer limiting cylinder along circumferential direction, and one top silk is threadedly connected in each top silk hole. The auxiliary welding device of lower part of repair crucible protective shell provided by the utility model can stabilize the forming of steel plate, improve welding efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum segregation furnace production equipment, and in particular to an auxiliary welding device for repairing the lower part of the crucible protective shell. Background Technology

[0002] During the production process of a refined aluminum segregation furnace, the lower part of the crucible protective shell may be burned due to prolonged high-temperature conditions. In this case, it is necessary to cut off the damaged steel shell and replace it with a new steel plate to repair the lower part of the crucible protective shell. Figure 4 The diagram shows the process flow for repairing the lower part of the crucible's protective shell. However, during the process of re-welding the new steel plate to the base of the protective shell, the steel plate's elasticity made it difficult to stably bend into a cylindrical shape to fit tightly against the base.

[0003] In the traditional method, the fitter needs to manually bend the steel plate to maintain its required cylindrical shape, which not only consumes a lot of physical strength, but is also inefficient and makes it difficult to guarantee the welding quality. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary welding device for repairing the lower part of the crucible protective shell, so as to solve the problems existing in the prior art, enable the steel plate to be stably formed, and improve welding efficiency and quality.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides an auxiliary welding device for repairing the lower part of a crucible protective shell, including an inner support cylinder, an outer limiting cylinder, a top cover, and a set screw. The inner support cylinder and the outer limiting cylinder are fixed to the lower end of the top cover and are arranged coaxially. A lifting part is fixedly provided at the upper end of the top cover. An annular space is formed between the inner support cylinder and the outer limiting cylinder. A steel plate inlet communicating with the annular space is provided on the side wall of the outer limiting cylinder. Multiple set screw holes are spaced apart along the circumferential direction on the side wall of the outer limiting cylinder, and a set screw is threaded into each set screw hole.

[0006] In one embodiment, the outer limiting cylinder has multiple windows along the circumferential direction on its side wall, and each window is rotatably connected to a roller. The axis of the roller is parallel to the axis of the inner support cylinder, and the roller is used to guide the steel plate filling process.

[0007] In one embodiment, a set screw roller is rotatably connected to one end of the set screw near the inner support cylinder.

[0008] In one embodiment, a rotating handle is fixedly provided at one end of the set screw located outside the outer limiting cylinder.

[0009] In one embodiment, the outer limiting cylinder has a chamfer on the outer side of the steel plate inlet.

[0010] In one embodiment, the lifting part is a lifting lug with a lifting hole.

[0011] In one embodiment, there are three windows, which are arranged sequentially at equal angles.

[0012] In one embodiment, four set screw holes are provided, and the four set screw holes are arranged sequentially at equal angles.

[0013] In one embodiment, the set screw holes and the window are alternately distributed along the circumferential direction of the outer limiting cylinder.

[0014] In one embodiment, the upper end of the annular space is sealed by the top cover, while the lower end is open.

[0015] The present invention achieves the following technical advantages over the prior art: This utility model provides an auxiliary welding device for repairing the lower part of a crucible protective shell. A steel plate is inserted into an annular space through a steel plate inlet. After insertion, the steel plate is fixed with a set screw. The device is then hoisted and placed above the crucible protective shell base. The curvature of the steel plate is adjusted by rotating the set screw to ensure a perfect match between the steel plate's curvature and the base's curvature. The height of the device is adjusted using the hoisting device to position the steel plate and the base at a suitable welding position. The steel plate is then welded and fixed to the base. Finally, the set screw is released, and the steel plate is detached from the device. This device uses a mechanical structure to adjust and stabilize the curvature of the steel plate, ensuring a perfect match between the steel plate's curvature and the base's curvature. No manual intervention is required, allowing the steel plate to be stably formed, thus improving welding efficiency and quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the auxiliary welding device for repairing the lower part of the protective shell of the crucible in this embodiment of the present invention during use; Figure 2 This is a schematic diagram of the auxiliary welding device for repairing the lower part of the protective shell of the crucible in this embodiment of the present invention when the set screw is not installed; Figure 3 This is a schematic diagram of the top screw structure in an embodiment of the present invention; Figure 4 This is a flowchart illustrating the repair process for the lower part of the crucible protective shell in this utility model.

[0018] In the diagram: 1-Inner support cylinder, 2-Outer limiting cylinder, 3-Top cover, 4-Top screw, 5-Lifting part, 6-Annular space, 7-Steel plate entrance, 8-Top screw hole, 9-Window, 10-Roller, 11-Top screw roller, 12-Rotating handle, 13-Chamfer, 14-Lifting hole, 15-Steel plate, 16-Crucible protective shell base. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] The purpose of this invention is to provide an auxiliary welding device for repairing the lower part of the crucible protective shell, so as to solve the problems existing in the prior art, enable the steel plate to be stably formed, and improve welding efficiency and quality.

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1-3 As shown, this embodiment provides an auxiliary welding device for repairing the lower part of a crucible protective shell, including an inner support cylinder 1, an outer limiting cylinder 2, a top cover 3, and a set screw 4. The inner support cylinder 1 and the outer limiting cylinder 2 are fixed to the lower end of the top cover 3 and are arranged coaxially. The upper end of the top cover 3 is fixedly provided with a lifting part 5. An annular space 6 is formed between the inner support cylinder 1 and the outer limiting cylinder 2. A steel plate inlet 7 communicating with the annular space 6 is provided on the side wall of the outer limiting cylinder 2. Multiple set screw holes 8 are spaced apart along the circumferential direction on the side wall of the outer limiting cylinder 2. Each set screw hole 8 is threaded with a set screw 4.

[0023] In use, the steel plate 15 is inserted into the annular space 6 through the steel plate inlet 7. The steel plate 15 is bent as it is inserted. After the steel plate 15 is inserted, it is tightened and fixed by the set screw 4. The device is then hoisted and placed above the crucible protective shell base 16 using a hoisting device. The curvature of the steel plate 15 is adjusted by rotating the set screw 4 to ensure that the curvature of the steel plate 15 matches the curvature of the crucible protective shell base 16 perfectly. The height of the device is adjusted by the hoisting device to place the steel plate 15 and the crucible protective shell base 16 in a suitable welding position. The steel plate 15 is then welded and fixed to the crucible protective shell base 16. After that, the set screw 4 is loosened to detach the steel plate 15 from the device. This device uses a mechanical structure to adjust and stabilize the curvature of the steel plate 15, so that the curvature of the steel plate 15 can be perfectly matched with the curvature of the crucible protective shell base 16 without manual intervention. This allows the steel plate 15 to be stably formed, improving welding efficiency and quality, and reducing human error. It also avoids the need for manual manipulation of the steel plate 15 during welding, reducing direct contact between operators and the high-temperature welding area, thereby reducing safety risks such as burns and scalds.

[0024] In this embodiment, multiple windows 9 are provided on the side wall of the outer limiting cylinder 2 along the circumferential direction. Each window 9 is rotatably connected to a roller 10. The axis of the roller 10 is parallel to the axis of the inner support cylinder 1. The roller 10 is used to guide the filling process of the steel plate 15.

[0025] In this embodiment, a set screw 4 is rotatably connected to a set screw roller 11 near the inner support cylinder 1. During use, the axis of the set screw roller 11 is adjusted to be parallel to the axis of the inner support cylinder 1. When inserting the steel plate 15, the set screw roller 11 reduces the lateral friction between the steel plate 15 and the set screw 4. Before hoisting, when tightening the steel plate 15, the state after the set screw 4 tightens the steel plate 15 should ensure that the axis of the set screw roller 11 is parallel to the axis of the inner support cylinder 1, preventing the steel plate 15 from falling due to the horizontal rotation of the set screw roller 11.

[0026] In this embodiment, a rotating handle 12 is fixedly provided at one end of the set screw 4 located outside the outer limiting cylinder 2, and the set screw 4 is driven to rotate by rotating the handle 12. Alternatively, the rotation of the set screw 4 can be driven by a driving device such as a motor.

[0027] In this embodiment, the outer limiting cylinder 2 has a chamfer 13 on the outer side of the steel plate inlet 7. This chamfer 13 design makes it easier to insert the steel plate 15 and reduces the friction between the steel plate 15 and the outer limiting cylinder 2 when it is inserted.

[0028] In this embodiment, the lifting part 5 is a lifting lug with a lifting hole 14, which facilitates lifting by a lifting device (such as an overhead crane).

[0029] In this embodiment, there are three windows 9, which are arranged sequentially at equal angles. There are four set screw holes 8, which are arranged sequentially at equal angles, and the set screw holes 8 and windows 9 are alternately distributed along the circumference of the outer limiting cylinder 2.

[0030] In this embodiment, the upper end of the annular space 6 is sealed by the top cover 3, while the lower end is open. During use, the steel plate 15 can also be inserted from the bottom of the annular space 6. Before inserting the steel plate 15 in this way, it needs to be pre-bent. During insertion, the axis of the top screw roller 11 is adjusted to be perpendicular to the axis of the inner support cylinder 1 (i.e., adjusted to be horizontal) to facilitate the insertion of the steel plate 15. Before hoisting, when the steel plate 15 is tightened and fixed by the top screw 4, the state after the top screw 4 tightens the steel plate 15 should also ensure that the axis of the top screw roller 11 is parallel to the axis of the inner support cylinder 1 to prevent the steel plate 15 from falling due to the horizontal rotation of the top screw roller 11.

[0031] The auxiliary welding device for repairing the lower part of the protective shell of the crucible provided by this utility model has the following advantages: Simplify the welding process: Reduce manual labor by mechanizing or automating the process, thereby reducing the workload of fitters.

[0032] Improve dimensional stability: The set screw mechanism ensures that the steel plate maintains the required cylindrical shape during welding, reducing deformation.

[0033] Improve welding efficiency and quality: Stable forming auxiliary devices make the welding process more controllable, improve welding accuracy and speed, and at the same time ensure the dimensional consistency and appearance quality of welded parts.

[0034] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An auxiliary welding device for repairing the lower part of a crucible protective shell, characterized in that: The device includes an inner support cylinder, an outer limiting cylinder, a top cover, and set screws. The inner support cylinder and the outer limiting cylinder are fixed to the lower end of the top cover and are arranged coaxially. The upper end of the top cover is fixedly provided with a hoisting part. An annular space is formed between the inner support cylinder and the outer limiting cylinder. A steel plate inlet communicating with the annular space is provided on the side wall of the outer limiting cylinder. Multiple set screw holes are spaced apart along the circumferential direction on the side wall of the outer limiting cylinder, and a set screw is threaded into each set screw hole.

2. The auxiliary welding device for repairing the lower part of the crucible protective shell according to claim 1, characterized in that: The outer limiting cylinder has multiple windows along the circumferential direction on its side wall, and each window is rotatably connected to a roller. The axis of the roller is parallel to the axis of the inner support cylinder, and the roller is used to guide the steel plate filling process.

3. The auxiliary welding device for repairing the lower part of the crucible protective shell according to claim 1, characterized in that: The end of the set screw near the inner support cylinder is rotatably connected to a set screw roller.

4. The auxiliary welding device for repairing the lower part of the crucible protective shell according to claim 1, characterized in that: The set screw is fixed with a rotating handle at one end located outside the outer limiting cylinder.

5. The auxiliary welding device for repairing the lower part of the crucible protective shell according to claim 1, characterized in that: The outer limiting cylinder has a chamfer on the outer side of the steel plate inlet.

6. The auxiliary welding device for repairing the lower part of the crucible protective shell according to claim 1, characterized in that: The lifting part is a lifting lug with lifting holes.

7. The auxiliary welding device for repairing the lower part of the crucible protective shell according to claim 2, characterized in that: The window is provided in three parts, and the three windows are arranged sequentially at equal angles.

8. The auxiliary welding device for repairing the lower part of the crucible protective shell according to claim 7, characterized in that: There are four set screw holes, which are arranged sequentially at equal angles.

9. The auxiliary welding device for repairing the lower part of the crucible protective shell according to claim 8, characterized in that: The set screw holes and the window are alternately distributed along the circumference of the outer limiting cylinder.

10. The auxiliary welding device for repairing the lower part of the crucible protective shell according to claim 1, characterized in that: The annular space is sealed at the top by the top cover and open at the bottom.

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