A wind gap small sleeve surfacing layer uniformity control tool

Abstract

This utility model discloses a tooling for controlling the uniformity of the weld overlay layer on a tuyere sleeve. It relates to the technical field of blast furnace tuyere sleeves and aims to solve the problem that existing tuyere sleeves, when heated in the furnace during preheating for weld overlay, lack a suitable clamping structure, making it impossible to effectively fix the tuyere sleeve. The tooling is made of carbon steel, while the tuyere sleeve is made of pure copper. The different coefficients of thermal expansion of the two materials cause gaps between the tuyere sleeve and the tooling after heating. If the clamping is unstable, the tuyere sleeve can easily fall off during the rotating weld overlay process, leading to arc extinction and affecting the uniformity of the weld overlay layer. The key technical points of this solution include a sliding sleeve, a furnace wall, and a workpiece. A first spring seat is installed on the outer side of the sliding sleeve, a pressure plate is sleeved on the outer side of the screw, and an adjusting nut is threaded onto the outer side of the screw. This achieves a stable clamping effect.

Description

Technical Field

[0001] This utility model relates to the field of blast furnace tuyere sleeve technology, and in particular to a tooling for controlling the uniformity of the weld overlay layer of the tuyere sleeve. Background Technology

[0002] The tuyere sleeve is an important component of the blast furnace injection system. As the air inlet of the tuyere, it is the site where the injection system injects high-pressure air. Its main task is to effectively deliver hot air into the blast furnace to maintain the normal smelting process inside the blast furnace. The structural design of the blast furnace tuyere sleeve enables it to work in extreme environments. The front end of the sleeve is in a high-temperature environment of nearly 2000 degrees Celsius, the temperature of the molten slag exceeds 1400 degrees Celsius, and the temperature of the hot air passing through is also above 1000 degrees Celsius. In order to cope with this harsh working environment, the tuyere sleeve is usually made of copper and has cooling water circulating inside to maintain its working condition.

[0003] The existing technical solutions mentioned above have the following drawbacks: During the preheating of the blast furnace sleeve for welding, the existing blast furnace sleeve is heated in the furnace and lacks a suitable clamping fixture structure, which cannot effectively fix the blast furnace sleeve. The fixture is made of carbon steel and the blast furnace sleeve is made of pure copper. The two materials have different coefficients of thermal expansion, which causes gaps to appear between the blast furnace sleeve and the fixture after heating. If the fixture clamping is unstable, the blast furnace sleeve is likely to fall off during the rotating welding process, resulting in arc extinguishing and affecting the uniformity of the weld layer using the blast furnace sleeve. Utility Model Content

[0004] The purpose of this invention is to provide a tooling for controlling the uniformity of the weld overlay layer on the small sleeve of the air vent.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A tooling for controlling the uniformity of the weld overlay layer on a small tuyer sleeve includes a sliding sleeve, a furnace wall, and a workpiece. A first spring seat is installed on the outer side of the sliding sleeve, and a fixing bolt is inserted inside the first spring seat. An outer sleeve is installed on the outer side of the first spring seat. A second spring seat is installed at one end of the outer sleeve, and the same fixing bolt is inserted inside the second spring seat. An end cap is installed at the other end of the outer sleeve, and the same fixing bolt is inserted inside the end cap. A spring is provided between the first spring seat and the second spring seat. A connecting sleeve is installed on the outer side of the end cap. A pull plate is installed on the outer side of the connecting sleeve. A locking bolt is inserted inside the pull plate, and a locking nut is threaded onto the outer side of the locking bolt. A screw is fixedly connected to the outer side of the pull plate. A pressure plate is sleeved on the outer side of the screw, and an adjusting nut is threaded onto the outer side of the screw.

[0007] By adopting the above technical solution, a sliding sleeve is sleeved on the outside of the hollow shaft. The outer sleeve, end cover, spring seat, connecting sleeve, pressure plate and pull plate are installed on the outside of the sliding sleeve by fixing bolts. The structure formed by the combination of the sliding sleeve and the outer sleeve has a spring structure inside. When the sliding sleeve moves, the spring can be compressed, which can drive the outer sleeve, connecting sleeve and pull plate to move as a whole. This allows the pressure plate to clamp and fix the outer side of the workpiece. The extension and contraction of the spring and the cooperation of the pressure plate and the adjusting nut allow the clamping adjustment to be made within a suitable range, which facilitates better clamping of the workpiece.

[0008] Furthermore, a sliding groove is provided on the outer side of the sliding sleeve, a hollow shaft is movably connected inside the sliding sleeve, a mounting base is fixedly connected to the outer side of the hollow shaft inside the sliding groove, an adjusting component is rotatably connected to the outer side of the mounting base, a pressure roller is rotatably connected inside the adjusting component, a force-applying rod is sleeved on the outer side of the adjusting component, a limit post is fixedly connected to the outer side of the mounting base, a threaded hole is opened inside the mounting base, a positioning rod is inserted into the threaded hole, an external thread is provided on the outer side of the positioning rod, and a push plate is fixedly connected to the outer side of the sliding sleeve.

[0009] By adopting the above technical solution, the rotation of the adjusting component, through the rolling of the pressure roller on the push plate, can push the sliding sleeve to slide, and at the same time drive the outer sleeve and connecting sleeve to slide, thereby achieving clamping at one end of the pressure plate. Meanwhile, the setting of the limiting post and positioning rod can limit the adjustment component after it rotates to the correct position, preventing the spring from returning and causing unstable clamping. In addition, the structure needs to be rotated as a whole in the later stage, and the structure after the limit is more stable.

[0010] Furthermore, the first spring seat and the sliding sleeve are detachably connected by fixing bolts, one end of the outer side of the outer sleeve and the second spring seat are detachably connected by fixing bolts, the other end of the outer side of the outer sleeve and one end of the outer side of the end cap are detachably connected by fixing bolts, the other end of the outer side of the end cap and one end of the outer side of the connecting sleeve are detachably connected by fixing bolts, and the other end of the outer side of the connecting sleeve and the pull plate are detachably connected by locking bolts and locking nuts.

[0011] By adopting the above technical solution and using a detachable structure, the structural components can be easily installed.

[0012] Furthermore, the second spring seat and the sliding sleeve are slidably connected, the first spring seat and the outer sleeve are slidably connected, the connecting sleeve and the hollow shaft are slidably connected, the pressure plate is engaged on the outside of the workpiece, the connecting sleeve extends through the furnace wall to the outside of the furnace wall, the connecting sleeve is slidably connected to the furnace wall, one end of the outer side of the hollow shaft is inserted into the inside of the workpiece, and the other end of the outer side of the hollow shaft is fixedly connected to the output end of the reducer.

[0013] By adopting the above technical solution, the overall structure becomes more convenient to use.

[0014] Furthermore, the pressure roller and the push plate are in contact with each other, the external thread and the threaded hole are threadedly connected, the positioning rod and one end of the outer side of the adjusting member are in contact with each other, and the limiting post and the other end of the outer side of the adjusting member are in contact with each other.

[0015] By adopting the above technical solution, the limiting function of the adjusting component is achieved, thereby improving the stability of the structure in the later stage of operation.

[0016] In summary, the beneficial technical effects of this utility model are as follows:

[0017] The device employs a sliding sleeve, outer sleeve, connecting sleeve, end cap, spring, connecting sleeve, pull plate, pressure plate, and adjusting component. A clamping structure for the workpiece is added to the outside of the hollow shaft. The hollow shaft itself transmits power to the output end of the reducer, while the other end of the hollow shaft is inserted into the workpiece. To improve workpiece clamping stability, a sliding sleeve, outer sleeve, and spring structure are added to the outside of the hollow shaft. Simultaneously, through the cooperation of the adjusting component and the pressure roller, the sliding sleeve slides along the outside of the hollow shaft, driving the spring and outer sleeve to move, thus clamping the pressure plate to the outside of the workpiece. After releasing the adjusting component, the spring returns to its original position, and the pressure plate loosens, facilitating the removal of the pressure plate and workpiece. Limiting posts and positioning rods limit the adjusting component, ensuring the device remains clamped, facilitating subsequent rotation of the entire fixture. The structure is more stable, resulting in a stable clamping effect. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the workpiece clamping state of this utility model;

[0019] Figure 2 This is a partial cross-sectional view of the workpiece in the loosened state according to this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of the adjusting component of this utility model;

[0021] Figure 4 This is a schematic diagram of the disassembled structure of this utility model.

[0022] In the diagram, 1. Sliding sleeve; 2. First spring seat; 3. Fixing bolt; 4. Outer sleeve; 5. Second spring seat; 6. End cap; 7. Spring; 8. Connecting sleeve; 9. Pull plate; 10. Locking bolt; 11. Screw; 12. Pressure plate; 13. Adjusting nut; 14. Sliding groove; 15. Hollow shaft; 16. Mounting seat; 17. Adjusting component; 18. Pressure roller; 19. Force rod; 20. Limiting post; 21. Threaded hole; 22. Positioning rod; 23. External thread; 24. Push plate; 25. Furnace wall; 26. Locking nut; 27. Workpiece. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Reference Figure 1-4 A tooling for controlling the uniformity of the weld overlay layer on a small tuyer sleeve includes a sliding sleeve 1, a furnace wall 25, and a workpiece 27. A first spring seat 2 is installed on the outer side of the sliding sleeve 1, and a fixing bolt 3 is inserted inside the first spring seat 2. An outer sleeve 4 is installed on the outer side of the first spring seat 2, and a second spring seat 5 is installed at one end of the outer sleeve 4. The same fixing bolt 3 is inserted inside the second spring seat 5. An end cap 6 is installed at the other end of the outer sleeve 4, and the same fixing bolt 3 is inserted inside the end cap 6. A spring 7 is provided between the first spring seat 2 and the second spring seat 5. A connecting sleeve 8 is installed on the outer side of the end cap 6, and a pull plate 9 is installed on the outer side of the connecting sleeve 8. The pull plate 9 is inserted inside... There is a locking bolt 10, and a locking nut 26 is threadedly connected to the outer side of the locking bolt 10. A screw 11 is fixedly connected to the outer side of the pull plate 9. A pressure plate 12 is sleeved on the outer side of the screw 11. An adjusting nut 13 is threadedly connected to the outer side of the screw 11. A sliding groove 14 is reserved on the outer side of the sliding sleeve 1. A hollow shaft 15 is movably connected inside the sliding sleeve 1. A mounting base 16 is fixedly connected to the outer side of the hollow shaft 15 inside the sliding groove 14. An adjusting component 17 is rotatably connected to the outer side of the mounting base 16. A pressure roller 18 is rotatably connected inside the adjusting component 17. A force-applying rod 19 is sleeved on the outer side of the adjusting component 17. A limit post 20 is fixedly connected to the outer side of the mounting base 16. The sliding sleeve 16 has a threaded hole 21 inside, and a positioning rod 22 is inserted into the threaded hole 21. The positioning rod 22 has an external thread 23 on its outer side. A push plate 24 is fixedly connected to the outer side of the sliding sleeve 1. The sliding sleeve 1 is sleeved on the outer side of the hollow shaft 15. The outer side of the sliding sleeve 1 is assembled with an outer sleeve 4, an end cover 6, a spring seat, a connecting sleeve 8, a pressure plate 12, and a pull plate 9 by fixing bolts 3. Through the structure formed by the combination of the sliding sleeve 1 and the outer sleeve 4, there is a spring 7 structure inside. When the sliding sleeve 1 moves, the spring 7 can be compressed, which can drive the outer sleeve 4, the connecting sleeve 8, and the pull plate 9 to move as a whole, so that the pressure plate 12 can push the workpiece 2. The outer side of the spring 7 is clamped and fixed. The extension and retraction of the spring 7, along with the cooperation of the pressure plate 12 and the adjusting nut 13, allows for clamping adjustment within a suitable range, facilitating better clamping of the workpiece 27. The rotation of the adjusting component 17, through the rolling of the pressure roller 18 on the push plate 24, pushes the sliding sleeve 1 to slide, and simultaneously drives the outer sleeve 4 and the connecting sleeve 8 to slide, achieving clamping at one end of the pressure plate 12. At the same time, the setting of the limiting post 20 and the positioning rod 22 can limit the adjustment component 17 after it rotates to the correct position, preventing the spring 7 from resetting and causing unstable clamping. In addition, the structure needs to be rotated as a whole later, and the structure after the limit is more stable.

[0025] like Figure 1-4 As shown, the first spring seat 2 and the sliding sleeve 1 are detachably connected by a fixing bolt 3. One end of the outer side of the outer sleeve 4 is detachably connected to the second spring seat 5 by a fixing bolt 3. The other end of the outer side of the outer sleeve 4 is detachably connected to one end of the outer side of the end cap 6 by a fixing bolt 3. The other end of the outer side of the end cap 6 is detachably connected to one end of the outer side of the connecting sleeve 8 by a fixing bolt 3. The other end of the outer side of the connecting sleeve 8 is detachably connected to the pull plate 9 by a locking bolt 10 and a locking nut 26. The second spring seat 5 and the sliding sleeve 1 are slidably connected. The first spring... The seat 2 and the outer sleeve 4 are slidably connected, the connecting sleeve 8 and the hollow shaft 15 are slidably connected, the pressure plate 12 is engaged on the outside of the workpiece 27, the connecting sleeve 8 extends through the furnace wall 25 to the outside of the furnace wall 25, the connecting sleeve 8 and the furnace wall 25 are slidably connected, one end of the outer side of the hollow shaft 15 is inserted into the inside of the workpiece 27, the other end of the outer side of the hollow shaft 15 is fixedly connected to the output end of the reducer, the pressure roller 18 and the push plate 24 are in contact with each other, the external thread 23 and the threaded hole 21 are threadedly connected, the positioning rod 22 and one end of the outer side of the adjusting component 17 are in contact with each other, and the limit post 20 and the other end of the outer side of the adjusting component 17 are in contact with each other.

[0026] The implementation principle of this embodiment is as follows: The workpiece 27 is sleeved on one end of the hollow shaft 15, and then the pressure plate 12 is sleeved on the outside of the screw 11. The pressure plate 12 is brought into contact with the outside of the workpiece 27, and the adjusting nut 13 is locked. Then the adjusting component 17 is rotated, and the pressure roller 18 contacts the push plate 24, pushing the sliding sleeve 1. At this time, the spring 7 is in a compressed state, which drives the pressure plate 12 to move, so that the pressure plate 12 clamps the workpiece 27 more tightly. At the same time, according to the extension and retraction performance of the spring 7 and the cooperation of the screw 11 and the adjusting nut 13, the clamping range can be adjusted as needed for easy use. At the same time, the adjusting component 17 is limited and fixed after the workpiece 27 is clamped by the limiting post 20 and the positioning rod 22, which facilitates the rotation of the whole. When loosening, the positioning rod 22 is loosened by the thread. Under the extension and retraction of the spring 7, the adjusting component 17 can be automatically reset. The overall structure is easy to use and can quickly clamp the workpiece 27, which is convenient for operation.

[0027] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tooling for controlling the uniformity of the weld overlay layer on a small tuyer, comprising a sliding sleeve (1), a furnace wall (25), and a workpiece (27), characterized in that: A first spring seat (2) is installed on the outer side of the sliding sleeve (1). A fixing bolt (3) is inserted inside the first spring seat (2). An outer sleeve (4) is installed on the outer side of the first spring seat (2). A second spring seat (5) is installed at one end of the outer sleeve (4). The same fixing bolt (3) is inserted inside the second spring seat (5). An end cap (6) is installed at the other end of the outer sleeve (4). The same fixing bolt (3) is inserted inside the end cap (6). The first spring seat (2) A spring (7) is provided between the second spring seat (5). A connecting sleeve (8) is installed on the outside of the end cover (6). A pull plate (9) is installed on the outside of the connecting sleeve (8). A locking bolt (10) is inserted into the inside of the pull plate (9). A locking nut (26) is threaded on the outside of the locking bolt (10). A screw (11) is fixedly connected to the outside of the pull plate (9). A pressure plate (12) is sleeved on the outside of the screw (11). An adjusting nut (13) is threaded on the outside of the screw (11).

2. The tooling for controlling the uniformity of the weld overlay layer on the air vent sleeve according to claim 1, characterized in that: The outer side of the sliding sleeve (1) has a reserved sliding groove (14). The inner side of the sliding sleeve (1) is movably connected to a hollow shaft (15). The outer side of the hollow shaft (15) is fixedly connected to a mounting base (16) inside the sliding groove (14). The outer side of the mounting base (16) is rotatably connected to an adjusting component (17). The inner side of the adjusting component (17) is rotatably connected to a pressure roller (18). The outer side of the adjusting component (17) is sleeved with a force-adding rod (19). The outer side of the mounting base (16) is fixedly connected to a limit post (20). The inner side of the mounting base (16) has a threaded hole (21). The inner side of the threaded hole (21) is inserted with a positioning rod (22). The outer side of the positioning rod (22) is provided with an external thread (23). The outer side of the sliding sleeve (1) is fixedly connected to a push plate (24).

3. The tooling for controlling the uniformity of the weld overlay layer on the air vent sleeve according to claim 1, characterized in that: The first spring seat (2) and the sliding sleeve (1) are detachably connected by a fixing bolt (3). One end of the outer side of the outer sleeve (4) and the second spring seat (5) are detachably connected by a fixing bolt (3). The other end of the outer side of the outer sleeve (4) and one end of the outer side of the end cap (6) are detachably connected by a fixing bolt (3). The other end of the outer side of the end cap (6) and one end of the outer side of the connecting sleeve (8) are detachably connected by a fixing bolt (3). The other end of the outer side of the connecting sleeve (8) and the pull plate (9) are detachably connected by a locking bolt (10) and a locking nut (26).

4. The tooling for controlling the uniformity of the weld overlay layer on the air vent sleeve according to claim 2, characterized in that: The second spring seat (5) and the sliding sleeve (1) are slidably connected, the first spring seat (2) and the outer sleeve (4) are slidably connected, the connecting sleeve (8) and the hollow shaft (15) are slidably connected, the pressure plate (12) is engaged on the outside of the workpiece (27), the connecting sleeve (8) extends through the furnace wall (25) to the outside of the furnace wall (25), the connecting sleeve (8) and the furnace wall (25) are slidably connected, one end of the hollow shaft (15) is inserted into the inside of the workpiece (27), and the other end of the hollow shaft (15) is fixedly connected to the output end of the reducer.

5. The tooling for controlling the uniformity of the weld overlay layer on the air vent sleeve according to claim 2, characterized in that: The pressure roller (18) and the push plate (24) are in contact with each other, the external thread (23) and the threaded hole (21) are threadedly connected, the positioning rod (22) and one end of the outer side of the adjusting member (17) are in contact with each other, and the limiting post (20) and the other end of the outer side of the adjusting member (17) are in contact with each other.

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