Metallurgical roller with good cooling effect

Abstract

The utility model provides a kind of metallurgical roller with good cooling effect, including support shaft, passageway is coaxially equipped in support shaft, support shaft is coaxially placed in support cylinder, sealing between the both ends of support cylinder and support shaft, the both ends of support cylinder are also equipped with gas outlet, the both ends of support shaft are located outside support cylinder, at least one end of support shaft is connected with gas supply device by gas sliding ring, gas supply device sends outside cold air into passageway by gas sliding ring, support shaft surface is equipped with multiple gas blowing holes communicated with passageway, cold air enters cavity from each gas blowing hole and then flows out from gas outlet again.The utility model is used in, gas supply device sends outside cold air into passageway by gas sliding ring, then cold air enters cavity from each gas blowing hole and then flows out from gas outlet again, since gas flows quickly in cavity, heat on the surface of support cylinder is quickly transferred outward, temperature of support cylinder is reduced, and finally temperature of entire metallurgical roller is reduced.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical roller technology, specifically to a metallurgical roller with good cooling effect. Background Technology

[0002] Furnace bottom rollers are key components in industrial equipment used in high-temperature environments. They are primarily used to support and transport industrial materials, commonly found in continuous annealing, heat treatment, and metallurgical processes. Furnace bottom rollers come in both hollow and solid structures. Solid rollers have a simple structure and high strength, making them suitable for bearing heavier workpieces, but they dissipate heat relatively slowly. Hollow structures, on the other hand, reduce weight and dissipate heat more quickly, often optimizing temperature control by introducing a cooling medium (such as gas or liquid) internally. These rollers are frequently used in high-temperature environments or heat treatment processes requiring high temperature uniformity.

[0003] When a hollow metallurgical roller is ventilated for cooling, gas is introduced from one end and then flows out from the other. However, this method of directly introducing gas into the roller cannot ensure that the gas is evenly distributed on the inner wall of the roller, resulting in limited cooling effect and even uneven cooling. Therefore, we propose a metallurgical roller with better cooling performance. Utility Model Content

[0004] This invention provides a metallurgical roller with good cooling effect, which has the advantage of rapidly cooling the inside of the metallurgical roller and solves the problems mentioned in the background art.

[0005] The technical solution of this utility model is implemented as follows: A metallurgical roller with good cooling effect includes a support shaft, a channel coaxially provided inside the support shaft, the support shaft being coaxially placed inside a support cylinder, and a cavity existing between the two. The two ends of the support cylinder are sealed to the support shaft, and air outlets are also provided at both ends of the support cylinder. Both ends of the support shaft are located outside the support cylinder, and at least one end of the support shaft is connected to an air supply device through an air slip ring. The air supply device sends outside cold air into the channel through the air slip ring. The surface of the support shaft is provided with multiple air blowing holes communicating with the channel. Cold air enters the cavity from each air blowing hole and then flows out from the air outlet.

[0006] Preferably, annular discs are coaxially arranged inside both ends of the support cylinder, and the annular discs are sealed and installed on both ends of the support shaft. There are multiple air outlets, which are arranged on the annular discs.

[0007] Preferably, multiple support discs are coaxially arranged on the support shaft, the diameter of the support discs matches the inner diameter of the support cylinder, the support discs are used to support the support cylinder, and each support disc has multiple flow ports on its side.

[0008] Preferably, the surface of the support shaft is provided with multiple reinforcing ribs parallel to its axis, and the reinforcing ribs are connected to the support plate respectively.

[0009] Preferably, the air holes are respectively opened on the reinforcing ribs.

[0010] Preferably, the air slip ring includes an air guide tube, one end of which is coaxially connected to the end of the support shaft and the two are in communication, and the other end of the air guide tube is rotatably disposed in the housing, with a sealing assembly between the two. The housing is provided with a connector that communicates with the air guide tube, and the connector is connected to the air supply device through a pipe.

[0011] Preferably, a support is provided on the side of the housing, and the support can be detachably installed on the bracket.

[0012] Preferably, the end of the air guide tube away from the housing is coaxially provided with a mounting flange, the end of the support shaft is provided with a socket that matches the air guide tube, the end of the air guide tube is placed in the socket, and the mounting flange is connected to the end of the support shaft by fasteners.

[0013] Compared with the prior art, in use, the air supply device sends outside cold air into the channel through the air slip ring. Then the cold air enters the cavity through each air blowing hole and flows out from the air outlet. As the gas flows rapidly in the cavity, the heat on the surface of the support cylinder is quickly transferred outward, which reduces the temperature of the support cylinder and ultimately reduces the temperature of the entire metallurgical roller. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is an explosive schematic diagram of the present invention.

[0017] Figure 3 This is a cross-sectional view of the present invention.

[0018] Figure 4 This is a connection diagram when there are multiple units of this utility model.

[0019] In the diagram: 1. Support cylinder; 2. Annular disc; 3. Support shaft; 4. Mounting flange; 5. Housing; 6. Connector; 7. Support; 8. Bracket; 9. Air outlet; 10. Bearing seat; 11. Annular groove; 12. Insertion hole; 13. Reinforcing rib; 14. Support disc; 15. Air blowing hole; 16. Air guide pipe; 17. Flow port; 18. Channel. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Reference Figures 1 to 3 This utility model provides a technical solution: a metallurgical roller with good cooling effect, including a support shaft 3, the two ends of the support shaft 3 are stepped, and in actual installation, the support shaft 3 is rotatably installed in the bearing seat 10, so that the support shaft 3 can rotate freely.

[0022] like Figure 1 and Figure 3 As shown, the support shaft 3 is coaxially placed inside the support cylinder 1. The inner diameter of the support cylinder 1 is larger than the diameter of the support shaft 3, thus creating a cavity between them. The two ends of the support cylinder 1 are sealed to the support shaft 3. The support cylinder 1 also has multiple air outlets 9 at both ends, specifically located on an annular disk 2. The annular disk 2 is coaxially located inside both ends of the support cylinder 1 and is sealed to both ends of the support shaft 3. Specifically... Figure 2 and Figure 3 As shown, annular grooves 11 are provided at both ends of the support cylinder 1. During installation, the annular disc 2 is first placed on the step at the end of the support shaft 3, then the annular disc 2 is placed in the annular groove 11, and finally the annular disc 2 is welded and fixed to the support cylinder 1 and the support shaft 3. This allows the annular disc 2 to stably support the support cylinder 1. Of course, the end of the support cylinder 1 can also be fastened to the edge of the annular disc 2 with multiple bolts, which can also allow the annular disc 2 to stably support the support cylinder 1.

[0023] Since the support cylinder 1 is a long cylinder, in order to ensure that the middle part of the support cylinder 1 has sufficient strength, multiple support discs 14 are coaxially arranged on the support shaft 3, and each support disc 14 has multiple flow ports 17 on its side. The diameter of the support disc 14 matches the inner diameter of the support cylinder 1, so that when the support cylinder 1 is fitted onto the support shaft 3, the support disc 14 is used to support the support cylinder 1. Multiple support discs 14 support the support cylinder 1 at the same time, so that the support cylinder 1 has sufficient strength and will not bend or deform during long-term use.

[0024] The support shaft 3 has a channel 18 coaxially arranged inside, and the surface of the support shaft 3 has multiple air blowing holes 15 communicating with the channel 18. That is, the cavity between the support shaft 3 and the support cylinder 1 is connected to the channel 18 through the air blowing holes 15. Both ends of the support shaft 3 are located outside the support cylinder 1. In actual use, at least one end of the support shaft 3 is connected to the air supply device through an air slip ring. That is, an air slip ring can be installed at both ends of the support shaft 3, or an air slip ring can be installed at one end of the support shaft. The end without an air slip ring is sealed with a plug. The air supply device is a high-pressure air supply device, such as a high-pressure air pump or air compressor. The air supply device sends outside cold air into the channel 18 through the air slip ring, and then the cold air enters the cavity from each air blowing hole 15 and then flows out from the air outlet 9. The direction of cold air flow is as follows Figure 3 As shown, the gas flows rapidly in the cavity, quickly transferring the heat from the surface of the support cylinder 1 to the outside, thus lowering the temperature of the support cylinder 1. The external gas enters the channel 18 at a certain pressure, so the airflow speed in the cavity is fast, ultimately lowering the temperature of the entire metallurgical roller.

[0025] Furthermore, the surface of the support shaft 3 is provided with multiple reinforcing ribs 13 parallel to its axis. The reinforcing ribs 13 are connected to the support plate 14 respectively. The multiple reinforcing ribs 13 can enhance the bending resistance of the support shaft 3, and the air holes 15 are respectively opened on the reinforcing ribs 13. This avoids the air holes 15 being directly set on the support shaft 3, which would reduce the strength of the support shaft 3.

[0026] Furthermore, such as Figure 3 As shown, the air slip ring includes an air guide tube 16. One end of the air guide tube 16 is coaxially connected to the end of the support shaft 3 and the two are in communication. Specifically, a mounting flange 4 is coaxially provided at the end of the air guide tube 16 away from the housing 5. The end of the support shaft 3 is provided with an insertion hole 12 that matches the air guide tube 16. During installation, the end of the air guide tube 16 is placed in the insertion hole 12. At this time, the mounting flange 4 and the end of the support shaft 3 are connected by fasteners. A sealing component is provided between the insertion hole 12 and the air guide tube 16. The sealing component is at least one sealing ring or shaft seal. The other end of the air duct 16 is rotatably disposed inside the housing 5, and a sealing component is provided between the two. The sealing component is at least one sealing ring or shaft seal. The housing 5 is provided with a connector 6 that communicates with the air duct 16. The connector 6 is connected to the air supply device through a pipe. Outside cold air enters the housing 5 from the connector 6, then enters the air duct 16 from the housing 5, and finally enters the channel 18 from the air duct 16. To keep the housing 5 stationary, a support 7 is provided on the side of the housing 5. The support 7 is detachably mounted on the bracket 8, and the two are connected by fasteners, such as... Figure 1 As shown, the other end of the bracket 8 is mounted on the bearing seat 10 by fasteners, or the bracket 8 can be installed in other suitable positions.

[0027] Based on the above embodiments, such as Figure 4 As shown, when there are multiple metallurgical rollers, they can be connected in series through pipes. In actual use, sprockets can be installed on the end of the support shaft 3, and the sprockets can be connected by chains, allowing multiple support shafts 3 to rotate under the drive of a motor.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A metallurgical roller with good cooling effect, comprising a support shaft (3), characterized in that, The support shaft (3) is coaxially provided with a channel (18); The support shaft (3) is coaxially placed inside the support cylinder (1), and there is a cavity between the two. The two ends of the support cylinder (1) are sealed with the support shaft (3), and the two ends of the support cylinder (1) are also provided with air outlets (9). Both ends of the support shaft (3) are located outside the support cylinder (1), and at least one end of the support shaft (3) is connected to the air supply device through the air slip ring. The air supply device sends outside cold air into the channel (18) through the air slip ring. The surface of the support shaft (3) is provided with multiple air blowing holes (15) that communicate with the channel (18). Cold air enters the cavity from each air blowing hole (15) and then flows out from the air outlet (9).

2. The metallurgical roller with good cooling effect as described in claim 1, characterized in that, The support cylinder (1) has an annular disk (2) coaxially arranged at both ends. The annular disk (2) is sealed and installed on both ends of the support shaft (3). There are multiple air outlets (9) and they are arranged on the annular disk (2).

3. The metallurgical roller with good cooling effect as described in claim 2, characterized in that, Multiple support discs (14) are coaxially arranged on the support shaft (3). The diameter of the support disc (14) matches the inner diameter of the support cylinder (1). The support disc (14) is used to support the support cylinder (1). Each support disc (14) has multiple flow ports (17) on its side.

4. The metallurgical roller with good cooling effect as described in claim 3, characterized in that, The surface of the support shaft (3) is provided with multiple reinforcing ribs (13) parallel to its axis, and the reinforcing ribs (13) are connected to the support plate (14) respectively.

5. The metallurgical roller with good cooling effect as described in claim 4, characterized in that, Air holes (15) are respectively opened on the reinforcing ribs (13).

6. The metallurgical roller with good cooling effect as described in any one of claims 1-5, characterized in that, The air slip ring includes an air guide tube (16), one end of which is coaxially connected to the end of the support shaft (3) and the two are in communication; The other end of the air guide tube (16) is rotatably installed inside the housing (5), and a sealing assembly is provided between the two. The housing (5) is provided with a connector (6) that communicates with the air guide tube (16), and the connector (6) is connected to the air supply device through a pipe.

7. The metallurgical roller with good cooling effect as described in claim 6, characterized in that, A support (7) is provided on the side of the housing (5), and the support (7) can be detachably installed on the bracket (8).

8. The metallurgical roller with good cooling effect as described in claim 7, characterized in that, The end of the air duct (16) away from the housing (5) is coaxially provided with a mounting flange (4), and the end of the support shaft (3) is provided with a socket (12) that matches the air duct (16). The end of the air duct (16) is placed in the socket (12), and the mounting flange (4) is connected to the end of the support shaft (3) by fasteners.

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