High-strength durable furnace bottom roller

Abstract

The utility model relates to the technical field of furnace bottom rollers, and discloses a high-strength durable furnace bottom roller which comprises two bases, the tops of the two bases are fixedly connected with supporting frames, the interiors of the two supporting frames are rotationally connected with rotating shafts, the close sides of the two rotating shafts are fixedly connected with connecting sleeves, and the connecting sleeves are fixedly connected with the supporting frames. A bottom roller body is fixedly connected to the sides, close to each other, of the two connecting sleeves, a heat dissipation assembly used for dissipating heat of the bottom roller body is arranged in the bottom roller body, a plurality of sliding grooves are evenly formed in the outer side of the rotating shaft, sliding blocks are slidably connected to the interiors of the sliding grooves, rotating sleeves are fixedly connected to the outer sides of the sliding blocks, and the rotating sleeves are fixedly connected to the outer sides of the sliding blocks. According to the furnace bottom roller, abrasion of a rotating shaft is replaced by the rotating sleeve, the problem that in the prior art, the rotating shaft of the furnace bottom roller is prone to abrasion is solved, the temperature in the furnace bottom roller is lowered through flowing evaporation of water in the heat dissipation grooves, and the problem that heat dissipation is difficult in the furnace bottom roller is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace bottom rollers, in particular to a high-strength and durable furnace bottom roller. Background Art

[0002] The hearth roller is an important equipment used in continuous annealing production lines. Its functions include improving production efficiency, ensuring product quality, and reducing maintenance costs. The hearth roller can withstand temperatures up to 1100°C or even higher. They are suitable for various continuous annealing production lines, especially continuous annealing furnaces for high-grade silicon steel.

[0003] The working principle of the furnace bottom roller is based on the physical changes during the heat treatment process. In the furnace body, the fuel and air are mixed and ignited to produce high-temperature combustion gas. These gases enter the roller through the nozzle, flow upward, and transfer heat to the material, so that it undergoes processes such as melting, evaporation, and drying. At the same time, the roller itself rotates slowly under the drive of the transmission system, so that the material continues to roll, ensuring that the material is fully contacted and heated. However, in the prior art, the rotating shaft of some furnace bottom rollers is directly connected to the support frame for rotation. This is easy to cause wear to the rotating shaft during rotation. When the wear degree is greater than a certain degree, the entire furnace bottom roller needs to be replaced, which is not conducive to the long-term use of the furnace bottom roller. If a device is set outside the rotating shaft, the wear on the rotating shaft can be effectively reduced. For this reason, a high-strength and durable furnace bottom roller is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a high-strength and durable furnace bottom roller, aiming to improve the problems in the prior art that the rotating shaft of the furnace bottom roller is easy to wear and the internal heat dissipation is difficult.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-strength and durable furnace bottom roller, comprising two bases, the tops of the two bases are fixedly connected with support frames, the interiors of the two support frames are rotatably connected with rotating shafts, the adjacent sides of the two rotating shafts are fixedly connected with connecting sleeves, the adjacent sides of the two connecting sleeves are fixedly connected with a bottom roller body, the interior of the bottom roller body is provided with a heat dissipation component for dissipating heat to the bottom roller body, the outer side of the rotating shaft is evenly provided with a plurality of slide grooves, the interiors of the plurality of slide grooves are slidably connected with sliders, the outer sides of the plurality of sliders are fixedly connected with rotating sleeves, the outer side of the rotating sleeve is fixedly connected with a fixing ring, by arranging the rotating sleeve outside the rotating shaft, the wear of the rotating shaft can be effectively reduced, and the rotating sleeve can be flexibly replaced by operating the fixing ring;

[0007] As a further description of the above technical solution:

[0008] The heat dissipation assembly includes two water inlet pipes, the adjacent ends of the two water inlet pipes are fixedly connected to the outside with bearings, the adjacent ends of the two water inlet pipes are fixedly connected to water outlet cylinders, the water outlet cylinders are provided with a plurality of water outlet holes, the bearings can prevent the water inlet pipes from being affected by the rotation of the furnace bottom rollers, and the water outlet holes allow water to flow out and enter the furnace bottom rollers to reduce the temperature;

[0009] As a further description of the above technical solution:

[0010] A cavity is provided inside the bottom roller body, and a plurality of heat dissipation grooves are evenly provided inside the bottom roller body, and the heat dissipation grooves can make the cooling effect more effective;

[0011] As a further description of the above technical solution:

[0012] The fixing ring is provided with a plurality of threaded holes inside, and the rotating sleeve is provided with a plurality of threaded holes inside, and the threaded holes of the two correspond to each other one by one;

[0013] As a further description of the above technical solution:

[0014] The inner thread of the fixing ring is connected with a plurality of fixing screws, and the outer parts of the plurality of fixing screws are respectively threadedly connected to the inner threaded holes of the fixing ring, and the fixing screws are connected to the threaded holes of the fixing ring;

[0015] As a further description of the above technical solution:

[0016] The internal thread of the rotating sleeve is connected with a plurality of fixing screws, and the outer portions of the plurality of fixing screws are respectively threadedly connected to the inside of the threaded holes inside the rotating sleeve, and the fixing screws are connected to the threaded holes of the rotating sleeve;

[0017] As a further description of the above technical solution:

[0018] A plurality of drainage holes are arranged inside the left and right ends of the bottom roller body, and a fixing ring is fixedly connected to the right end of the bottom roller body, so that water and water vapor can flow out from the inside of the furnace bottom roller through the drainage holes;

[0019] As a further description of the above technical solution:

[0020] The internal thread of the fixing ring is connected with a plurality of screws, and the left side of the fixing ring is fixedly connected with an oxidation-resistant casing, which can effectively prevent the oxidation of the furnace bottom roller by the high-temperature object.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the rotating sleeve is fixed to the outside of the rotating shaft by a fixing ring, so that the rotating sleeve wears instead of the rotating shaft, which greatly improves the service life of the rotating shaft and solves the problem that the rotating shaft of the furnace bottom roller is easy to wear in the prior art. The detachable fixing method makes the replacement of the rotating sleeve more flexible, and the durability and service life of the furnace bottom roller are improved to a certain extent.

[0023] 2. In the utility model, water is discharged through the drainage hole of the water outlet tube, and the temperature of the furnace bottom roller is reduced by evaporation of water. The multiple heat dissipation grooves in the bottom roller body can greatly improve the temperature reduction effect. The slender heat dissipation grooves can improve the cooling effect while also ensuring the high strength of the furnace bottom roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a high-strength and durable furnace bottom roller proposed by the utility model;

[0025] Figure 2 This is a schematic structural diagram of an oxidation-resistant casing of a high-strength and durable furnace bottom roller proposed by the utility model;

[0026] Figure 3 for Figure 1 The enlarged view of point A in the middle;

[0027] Figure 4 This is a structural schematic diagram of a connecting sleeve of a high-strength and durable furnace bottom roller proposed by the utility model;

[0028] Figure 5 The utility model is a schematic diagram of the structure of a heat dissipation groove of a high-strength and durable furnace bottom roller.

[0029] Legend:

[0030] 1. Base; 2. Support frame; 3. Rotating shaft; 4. Slide; 5. Rotating sleeve; 6. Fixed screw; 7. Fixed ring; 8. Bottom roller body; 9. Drain hole; 10. Oxidation-resistant casing; 11. Screw; 12. Water inlet pipe; 13. Water outlet cylinder; 14. Water outlet hole; 15. Slider; 16. Bearing; 17. Cavity; 18. Fixed ring; 19. Connecting sleeve; 20. Heat sink. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 , Figure 3 The utility model provides an embodiment: a high-strength and durable furnace bottom roller, comprising two bases 1, the tops of the two bases 1 are fixedly connected with support frames 2, the interiors of the two support frames 2 are rotatably connected with rotating shafts 3, the rotating shaft 3 rotates in the support frames 2, the adjacent sides of the two rotating shafts 3 are fixedly connected with connecting sleeves 19, the adjacent sides of the two connecting sleeves 19 are fixedly connected with a bottom roller body 8, the rotating shaft 3 is connected to the bottom roller body 8 through the connecting sleeves 19, the bottom roller body 8 is provided with a heat dissipation component for dissipating the heat of the bottom roller body 8, the heat dissipation component is mainly used for heat dissipation inside the furnace bottom roller, the outer side of the rotating shaft 3 is evenly provided with a plurality of chute 4, the interiors of the plurality of chute 4 are slidably connected with sliders 15, the sliders 15 can slide in the chute 4, the outer sides of the plurality of sliders 15 are fixedly connected with rotating sleeves 5, the outer side of the rotating sleeve 5 is fixedly connected with a fixing ring 7, the rotating sleeve 5 is fixed on the rotating shaft 3 through the fixing ring 7, the rotating sleeve 5 can effectively reduce the wear of the rotating shaft 3, and increase the service life and durability of the furnace bottom roller.

[0033] Reference Figure 2 , Figure 4 , Figure 5 The heat dissipation component includes two water inlet pipes 12, and a bearing 16 is fixedly connected to the outside of the adjacent ends of the two water inlet pipes 12. The bearing 16 can make the water inlet pipe 12 rotate without being affected by the rotation of the furnace bottom roller. A water outlet cylinder 13 is fixedly connected to the adjacent ends of the two water inlet pipes 12. A plurality of water outlet holes 14 are provided inside the water outlet cylinder 13. The water outlet holes 14 can make water flow out more evenly. A cavity 17 is provided inside the bottom roller body 8. A plurality of heat dissipation grooves 20 are evenly provided inside the bottom roller body 8. The cavity 17 is used to set the water outlet cylinder 13. The slender shape of the heat dissipation groove 20 can make the heat dissipation effect of water on the furnace bottom roller better, while also ensuring the strength of the inside of the furnace bottom roller.

[0034] Reference Figures 2 to 4, a plurality of threaded holes are arranged inside the fixing ring 7, and a plurality of threaded holes are arranged inside the rotating sleeve 5. The threaded holes of the fixing ring 7 and the rotating sleeve 5 correspond to each other one by one. The internal thread of the fixing ring 7 is connected with a plurality of fixing screws 6. The outer parts of the plurality of fixing screws 6 are respectively threadedly connected to the inner parts of the threaded holes inside the fixing ring 7. The fixing screws 6 are fixed by the threads inside the fixing ring 7. The internal thread of the rotating sleeve 5 is connected with a plurality of fixing screws 6. The outer parts of the plurality of fixing screws 6 are respectively threadedly connected to the inner parts of the threaded holes inside the rotating sleeve 5. The fixing screws 6 are fixed by the threaded holes inside the rotating sleeve 5. A plurality of drainage holes 9 are arranged inside the left and right ends of the bottom roller body 8. The drainage holes 9 are used to discharge evaporated water vapor and excess water. A fixing ring 18 is fixedly connected to the right end of the bottom roller body 8. A plurality of screws 11 are connected to the internal thread of the fixing ring 18. An oxidation-resistant casing 10 is fixedly connected to the left side of the fixing ring 18. The oxidation-resistant casing 10 is fixed by screws 11 to prevent oxidation of the furnace bottom roller by high-temperature objects. The screws 11 are fixed to make it easy to replace and make the furnace bottom roller more durable.

[0035] Working principle: Before installing the furnace bottom roller, the sliding block 15 in the rotating sleeve 5 can be used to slide the rotating sleeve 5 into the sliding groove 4 in the rotating shaft 3, and the distance of the rotating sleeve 5 in the rotating shaft 3 can be adjusted according to the position of the supporting frame 2 and the rotating shaft 3. After the position adjustment is completed, the fixing screw 6 in the fixing ring 7 is loosened, and then it is sleeved on the outside of the rotating sleeve 5, and the angle is adjusted to align the threaded holes of the rotating sleeve 5 and the fixing ring 7, and then the fixing screw 6 is tightened to fix the rotating sleeve 5 to prevent it from sliding left and right. The rotating sleeve 5 is sleeved on the outside of the rotating shaft 3 to replace the wear of the rotating shaft 3 during rotation.

[0036] During the operation of the equipment, a high-temperature object passes through the furnace bottom roller, which increases the temperature inside the furnace bottom roller. A cavity 17 is provided inside the bottom roller body 8, and a water outlet cylinder 13 is arranged in the cavity 17. Water enters the water outlet cylinder 13 through the water inlet pipe 12 and flows out through the water outlet hole 14. Because a bearing 16 is fixed to the outside of the water inlet pipe 12, the water outlet cylinder 13 does not rotate when the furnace bottom roller rotates, so that the water can be evenly dispersed into the inside of the bottom roller body 8. A plurality of heat dissipation grooves 20 are also provided inside the bottom roller body 8, so that the water can dissipate heat to a large extent while ensuring that the strength of the bottom roller body 8 does not decrease much. A plurality of drainage holes 9 are also provided at both ends of the bottom roller body 8, from which evaporated water vapor and liquid water flow out, thereby playing a role in heat dissipation.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-strength and durable furnace bottom roller, comprising two bases (1), characterized in that: The tops of the two bases (1) are fixedly connected to support frames (2), the interiors of the two support frames (2) are rotatably connected to rotating shafts (3), the adjacent sides of the two rotating shafts (3) are fixedly connected to connecting sleeves (19), the adjacent sides of the two connecting sleeves (19) are fixedly connected to bottom roller bodies (8), the interiors of the bottom roller bodies (8) are provided with heat dissipation components for dissipating heat from the bottom roller bodies (8), a plurality of slide grooves (4) are evenly arranged on the outside of the rotating shafts (3), the interiors of the plurality of slide grooves (4) are slidably connected to sliders (15), the exteriors of the plurality of sliders (15) are fixedly connected to rotating sleeves (5), and the exteriors of the rotating sleeves (5) are fixedly connected to fixing rings (7).

2. The high-strength and durable hearth roller according to claim 1, characterized in that: The heat dissipation assembly comprises two water inlet pipes (12), the adjacent ends of the two water inlet pipes (12) being fixedly connected to the outside with a bearing (16), the adjacent ends of the two water inlet pipes (12) being fixedly connected to a water outlet cylinder (13), and the water outlet cylinder (13) being provided with a plurality of water outlet holes (14) inside.

3. The high-strength and durable hearth roller according to claim 1, characterized in that: A cavity (17) is provided inside the bottom roller body (8), and a plurality of heat dissipation grooves (20) are evenly provided inside the bottom roller body (8).

4. The high-strength and durable hearth roller according to claim 1, characterized in that: The fixing ring (7) is provided with a plurality of threaded holes inside, and the rotating sleeve (5) is provided with a plurality of threaded holes inside.

5. The high-strength and durable hearth roller according to claim 1, characterized in that: The fixing ring (7) is internally threadedly connected to a plurality of fixing screws (6), and the exteriors of the plurality of fixing screws (6) are respectively threadedly connected to the interior of threaded holes inside the fixing ring (7).

6. The high-strength and durable hearth roller according to claim 1, characterized in that: The internal thread of the rotating sleeve (5) is connected to a plurality of fixing screws (6), and the exteriors of the plurality of fixing screws (6) are respectively threadedly connected to the interior of the threaded holes inside the rotating sleeve (5).

7. The high-strength and durable hearth roller according to claim 1, characterized in that: A plurality of drainage holes (9) are provided inside the left and right ends of the bottom roller body (8), and a fixing ring (18) is fixedly connected to the right end of the bottom roller body (8).

8. The high-strength and durable hearth roller according to claim 7, characterized in that: The internal thread of the fixing ring (18) is connected to a plurality of screws (11), and the left side of the fixing ring (18) is fixedly connected to an oxidation-resistant casing (10).

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