A heat storage body replacement device for a heating furnace for rolling

Abstract

The present application belongs to the technical field of auxiliary unloading device, and particularly relates to a heat storage body replacement device for a heating furnace for rolling steel, which comprises a moving base, limiting side plates, a push plate and a push plate driving mechanism. A plurality of walking wheels are arranged in the moving base, and two of the walking wheels are coaxially arranged. Two limiting side plates are arranged in parallel on the moving base. The push plate is arranged between the two limiting side plates, movably assembled on the moving base and guided by the two limiting side plates. An accommodating cavity for stacking a plurality of heat storage bodies is formed between the push plate, the two limiting side plates and the moving base. The push plate driving mechanism comprises a driving member and a push plate transmission mechanism connected between the driving member and the push plate. A base transmission mechanism is arranged between the driving member and the shafts of the two coaxially arranged walking wheels. A power transmission member for cutting off and transmitting power between the driving member and the walking wheels is detachably connected between the base transmission mechanism and the two shafts. The present application can improve the replacement efficiency of the heat storage body and is safer.

Description

Technical Field

[0001] This invention belongs to the technical field of auxiliary tilting and unloading devices, specifically relating to a heat storage body replacement device for a steel rolling furnace. Background Technology

[0002] Steel rolling is the process of processing steel ingots or billets through the rotating pressure of rolls, changing their shape, size, and properties to create various steel products. Before rolling, the steel billet needs to be heated to a suitable rolling temperature. Regenerative thermal radiators can effectively heat steel billets to the required rolling temperature and are widely used in the steel rolling process. The heating principle of a regenerative thermal radiator is to utilize a heat storage medium (usually a ceramic heat storage medium) to recover the waste heat from high-temperature flue gas. When the high-temperature flue gas passes through the heat storage medium, the medium absorbs heat. Then, cold air (or gas) is heated by the heat storage medium in a reverse flow. The heated air (or gas) is then used to burn and heat the steel billet.

[0003] During prolonged use, the surface of the heat storage medium easily accumulates dust, impurities, and combustion byproducts. For example, incomplete combustion may produce tar, soot, and other substances that adhere to the pores and surface of the heat storage medium, causing blockage. As the blockage worsens, the resistance to airflow through the heat storage medium increases significantly, reducing the flow of air (or gas) and flue gas, thus affecting heat exchange efficiency. Furthermore, the heat storage medium experiences thermal stress during repeated heating and cooling cycles. Because the medium absorbs heat and its temperature rises during heating, and then rapidly cools down during cooling, this frequent temperature change generates thermal stress within the medium. Prolonged thermal stress can lead to cracks, spalling, or even breakage of the heat storage medium, reducing its heat storage capacity and structural integrity. Therefore, after prolonged use, the heat storage medium needs to be replaced to ensure the normal functioning of the regenerative heating furnace.

[0004] Typically, heat storage elements are stacked together. This stacking method helps to fully utilize the space inside the heating furnace and achieve efficient heat storage and exchange functions. Therefore, multiple elements are usually replaced at once. The current method of replacing heat storage elements is manual, that is, each heat storage element is installed into the heat storage box by hand. Manual work is constrained by factors such as the high temperature environment and confined space inside the heat storage box, resulting in long working time, low work efficiency, and the high temperature inside the heat storage box also poses a certain impact on the safety of construction workers. Summary of the Invention

[0005] The purpose of this invention is to provide a heat storage replacement device for a heating furnace used in steel rolling, so as to solve the technical problems of low efficiency and low safety when manually replacing the heat storage in the prior art.

[0006] To solve the above problems, the regenerator replacement device for steel rolling furnaces provided by the present invention adopts the following technical solution:

[0007] A heat regenerator replacement device for a steel rolling furnace includes a movable base, limiting side plates, a push plate, and a push plate driving mechanism. The movable base has its length direction defined as the left-right direction and its width direction as the front-back direction. A handrail is connected to the right end of the movable base. Multiple wheels are installed inside the movable base, with two of them coaxially arranged. Two limiting side plates are installed on the movable base and arranged parallel to each other in the front-back direction. The push plate is located between the two limiting side plates, movably mounted on the movable base in the left-right direction, and guides the two limiting side plates. The push plate, the two limiting side plates, and the movable base together form a cavity for stacking multiple heat regenerators.

[0008] The push plate driving mechanism includes a driving component and a push plate transmission mechanism connected between the driving component and the push plate. A base transmission mechanism is provided between the driving component and the axles of two coaxially arranged traveling wheels. A power transmission component for cutting off and transmitting power between the driving component and the traveling wheels is detachably connected between the base transmission mechanism and the two axles. When the power transmission component is installed, the driving component simultaneously drives the moving base and the push plate to move in opposite directions. When the power transmission component is disassembled, the power between the driving component and the traveling wheels is cut off.

[0009] The beneficial effects of this invention are as follows: In use, the heat storage bodies are stacked in the receiving cavity formed by the two limiting side plates and the push plate. With the assistance of the moving wheels, construction personnel can easily push the entire device to the position for heat storage body replacement using the handrail. Then, the power transmission component is installed and the drive mechanism is activated. When the drive mechanism is working, it drives the push plate to move, pushing multiple heat storage bodies towards the heat storage chamber. Simultaneously, the moving base moves backward in the opposite direction to the movement of the heat storage bodies, thus placing the entire heat storage body from the moving base into the corresponding heat storage chamber. After the heat storage bodies are placed, the power transmission component is removed, and the moving base can be pulled using the handrail to move the entire device away from the heat storage chamber. This invention can replace multiple heat storage bodies at once. During the replacement process, personnel can operate outside the heat storage chamber, making the work safer. The drive mechanism automatically pushes the heat storage bodies into the heat storage chamber, saving time and effort for operators and improving work efficiency.

[0010] Furthermore, the push plate transmission mechanism is a screw and nut transmission mechanism, including a transmission screw rotatably mounted on a movable base and a nut slider threadedly connected to the transmission screw. The push plate is fixedly connected to the nut slider. The driving component is a drive motor, and the output shaft of the drive motor and the transmission screw both extend in the left and right direction. The movable base is also provided with a slide rail that guides the push plate.

[0011] Beneficial effects: When using a lead screw and nut transmission mechanism, the transmission is stable and reliable, and the distance the push plate moves is easier to control, which also helps to make reasonable designs for the size of the moving base.

[0012] Furthermore, the base transmission mechanism includes a bevel gear mechanism and a sprocket mechanism. The bevel gear mechanism includes a first rotating shaft rotatably mounted on the movable base, a first bevel gear coaxially fixed on the transmission screw, and a second bevel gear coaxially connected to the first rotating shaft. The first bevel gear meshes with the second bevel gear, and the first rotating shaft is arranged perpendicular to the transmission screw. The sprocket mechanism includes a second rotating shaft rotatably mounted on the movable base, a first sprocket coaxially fixed on the first rotating shaft, a second sprocket coaxially fixed on the second rotating shaft, and a chain meshing between the first sprocket and the second sprocket. The second rotating shaft is parallel to the first rotating shaft and coaxially arranged with the wheel axle. The two ends of the second rotating shaft are respectively inserted into the two wheel axles or sleeved on the two wheel axles. The power transmission component is a pin that passes through the second rotating shaft and the corresponding side wheel axle simultaneously to prevent the second rotating shaft from rotating with the wheel axle.

[0013] Beneficial effects: The bevel gear mechanism can change the direction of power transmission, has a simple structure and is easy to arrange; the sprocket mechanism has high transmission efficiency, a compact structure and occupies little space, and can make reasonable use of the space on the mobile base; the power transmission component adopts a pin, which has a simple structure and is easy to assemble and disassemble.

[0014] Furthermore, the axle is a hollow shaft, and the diameter of the axle is larger than the diameter of the second rotating shaft; the axle has multiple first radial insertion holes in the circumferential direction at the end away from the traveling wheel, and the second rotating shaft has multiple second radial insertion holes in the circumferential direction at the end for insertion into the axle, and the power transmission component is used to be inserted into the corresponding first radial insertion hole and second radial insertion hole.

[0015] Beneficial effects: The installation of the wheel axle and the second rotating shaft is more convenient. Operators can transmit and cut off power by inserting or pulling out the pin into the first radial socket and the second radial socket. The operation is simpler and faster.

[0016] Furthermore, a reinforcing frame is connected between the nut slider and the push plate.

[0017] Beneficial effects: Due to the high height of the push plate and the small connection area between the nut slider and the push plate, the reinforcement frame can improve the structural strength of the push plate, increase the connection area between the nut slider and the push plate, ensure the stability of the push plate when pushing the heat storage body, and avoid deformation of the push plate.

[0018] Furthermore, a reinforcing rod is connected between the handrail and the reinforcing frame. The reinforcing rod includes an inclined rod segment and a horizontal rod segment. The inclined rod segment is connected to the handrail, and the horizontal rod segment is connected to the reinforcing frame. The horizontal rod segment is a telescopic rod with adjustable length.

[0019] Beneficial effects: The reinforcing rod can further support and reinforce the push plate, ensuring that the push plate does not deform and that the heat storage body is stable during the push-out process.

[0020] Furthermore, each limiting side plate is equipped with a limiting rod via a hinge shaft. The hinge shaft extends in the vertical direction and is equipped with a torsion spring for driving it to reset. The limiting rod is used to press down on the heat storage body. The push plate is equipped with a pushing part for pushing the limiting rod to rotate around the hinge shaft to release the pressure on the heat storage body.

[0021] Beneficial effects: The limiting rod can press against the heat storage body, improving the positioning stability of the heat storage body during movement and preventing it from tipping over.

[0022] Furthermore, two limiting rods are assembled on the same limiting side plate, and a connecting rod is hinged to the middle of the two limiting rods. The part of the limiting rod located outside the connecting rod is used to press against the heat storage body.

[0023] Beneficial effects: The presence of two limit rods increases the contact area with the heat storage body, further ensuring the positioning of the heat storage body. When the two limit rods are hinged together, the two connecting rods can rotate simultaneously under the pushing action of the jacking part to release the pressure on the heat storage body.

[0024] Furthermore, the pushing part includes a push rod arranged vertically on a push plate and a push block connected to the left end of the push rod. The push block is used to push the limiting rod. The push block has a pressing slope. When the pressing slope contacts the limiting rod, it is used to tilt the limiting rod upward by a set distance.

[0025] Beneficial effects: Since the limiting rod and the heat storage body are in a pressure contact relationship, when the top block pushes the limiting rod to rotate, there is still friction between the limiting rod and the surface of the heat storage body. Therefore, after setting the top pressing slope on the top block, the top pressing slope will lift the limiting rod a certain distance, so that the limiting rod is away from the heat storage body, thereby protecting the heat storage body.

[0026] Furthermore, the left end of the movable base is provided with a guide ramp for guiding the heat storage body to slide down.

[0027] Beneficial effects: Under the action of the guide ramp, the heat storage body can easily fall from the moving base, and the guide ramp has a certain slope to cushion the heat storage body and prevent damage due to impact when the entire stack of heat storage bodies falls directly. Attached Figure Description

[0028] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0029] Figure 1 This is a schematic diagram of the structure of the heat regenerator replacement device for a steel rolling furnace according to the present invention;

[0030] Figure 2 This is a top view of the movable base structure;

[0031] Figure 3 A top view showing the relative relationship between the limit rod, push plate, and heat storage body;

[0032] Figure 4 To show the main view of the limit rod installed on the limit side plate;

[0033] Figure 5 A schematic diagram showing the coordination between the wheel axle, the base transmission mechanism, and the power transmission components;

[0034] Figure 6 This is a schematic diagram showing the assembly between the drive unit, the push plate, and the push plate transmission mechanism.

[0035] Figure 7 for Figure 6 Enlarged diagram of point A in the middle.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Movable base; 2. Limiting side plate; 3. Push plate; 4. Heat storage body; 5. Walking wheel; 6. Drive wheel; 7. Wheel axle; 8. Power transmission component; 9. Slide rail; 10. Transmission screw; 11. Nut slider; 12. Horizontal rod segment; 13. Drive motor; 14. First rotating shaft; 15. Second rotating shaft; 16. First bevel gear; 17. Second bevel gear; 18. First sprocket; 19. Second sprocket; 20. Chain; 21. Reinforcing frame; 22. Top rod; 23. Top block; 24. Top pressure slope; 25. Limiting rod; 26. Guide slope; 27. Handrail; 28. Connecting rod; 29. ​​Inclined rod segment; 30. Hinge shaft; 31. Torsion spring; 32. Mounting slot. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0039] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments.

[0040] An embodiment of the heat regenerator replacement device for steel rolling furnaces provided by the present invention:

[0041] like Figure 1 As shown, the regenerator replacement device for steel rolling furnace includes a movable base 1, a limiting side plate 2 fixedly installed on the movable base 1, a push plate 3 movably assembled on the movable base 1, a push plate drive mechanism installed on the movable base 1 for driving the push plate 3 to move, and a handrail 27 connected to the movable base 1 for personnel to hold.

[0042] Specifically, such as Figure 2 As shown, the overall shape of the movable base 1 is a cuboid structure. In this embodiment, for ease of explanation, the length direction of the movable base 1 is taken as the left-right direction, and the width direction is taken as the front-back direction. The movable base 1 is made of high-temperature resistant stainless steel. The armrest 27 is welded to the right end of the movable base 1. The armrest 27 is L-shaped, and the interior angle of the L-shape is obtuse.

[0043] The mobile base 1 is equipped with four rectangularly arranged wheels 5, allowing workers to move it left and right using the handrail 27. Although equipped with wheels 5, the bottom of the mobile base 1 remains relatively close to the ground, preventing direct friction with the ground. Figure 1 As shown, the left end of the movable base 1 is provided with a guide ramp 26 for guiding the heat storage body 4 to slide down, thereby reducing the possibility of a large collision when the heat storage body 4 slides down.

[0044] like Figure 3 As shown, two limiting side plates 2 are welded to the movable base 1, arranged parallel to each other in the front-to-back direction. A push plate 3 is located between the two limiting side plates 2 and can move in the left-to-right direction. The push plate 3, the two limiting side plates 2, and the movable base 1 form a cavity for stacking multiple heat storage bodies 4. When the push plate 3 moves, it pushes the heat storage bodies 4 in the cavity into the heat storage chamber. To improve the stability of the push plate 3's movement, the limiting side plates 2 are also provided with a guide groove that cooperates with the push plate 3, extending in the left-to-right direction.

[0045] The push plate drive mechanism includes a drive component and a push plate transmission mechanism connected between the drive component and the push plate 3. In this embodiment, as shown... Figure 1 , Figure 2 and Figure 6As shown, the driving component is a drive motor 13, fixed on the movable base 1, with the output shaft of the drive motor 13 extending in the left-right direction. The push plate transmission mechanism is a screw-nut transmission mechanism, including a transmission screw 10 rotatably mounted on the movable base 1 and a nut slider 11 threadedly connected to the transmission screw 10. The push plate 3 is fixedly connected to the nut slider 11. To prevent deformation of the push plate 3, a reinforcing frame 21 is connected between the nut slider 11 and the push plate 3. Simultaneously, a reinforcing rod is connected between the handrail 27 and the reinforcing frame 21. The reinforcing rod is also an L-shaped rod, such as... Figure 1 As shown, the L-shaped rod has an obtuse inner angle and includes an inclined rod segment 29 and a horizontal rod segment 12. The inclined rod segment 29 is welded to the handrail 27, and the horizontal rod segment 12 is connected to the reinforcing frame 21. The horizontal rod segment 12 is an adjustable telescopic rod to accommodate the movement of the push plate 3. The output shaft of the drive motor 13 is connected to the transmission screw 10 via a coupling, such as... Figure 2 As shown, the movable base 1 is equipped with a slide rail 9 that guides and cooperates with the push plate 3, and the slide rail 9 is parallel to the coupling. When the drive motor 13 runs, it drives the transmission screw 10 to rotate, thereby pushing the push plate 3 to move in the left and right directions.

[0046] The two wheels near the right side of the drive motor 13 are used as drive wheels 6. A base transmission mechanism is provided between the drive motor 13 and the two drive wheels 6 on the right side. A power transmission component 8 for cutting off and transmitting power between the drive motor 13 and the drive wheels 6 is detachably connected between the base transmission mechanism and the two wheel axles 7.

[0047] In this embodiment, as Figure 2 and Figure 5 As shown, the base transmission mechanism includes a bevel gear mechanism and a sprocket mechanism. The bevel gear mechanism includes a first rotating shaft 14, a first bevel gear 16 coaxially fixed to the transmission screw 10, and a second bevel gear 17 coaxially connected to the first rotating shaft 14. The first bevel gear 16 meshes with the second bevel gear 17. The first rotating shaft 14 is arranged perpendicularly to the transmission screw 10. The sprocket mechanism includes a second rotating shaft 15, a first sprocket 18 coaxially fixed to the first rotating shaft 14, a second sprocket 19 coaxially fixed to the second rotating shaft 15, and a chain 20 meshing between the first sprocket 18 and the second sprocket 19. On the movable base 1, two first support plates for rotating the first rotating shaft 14 and two second support plates for rotating the second rotating shaft 15 are erected on the right side of the push plate 3. The second rotating shaft 15 is parallel to the first rotating shaft 14 and coaxially arranged with the axle 7 of the two drive wheels 6. The axle 7 is a hollow axle with a diameter larger than that of the second rotating shaft 15; the two axles 7 are respectively fitted onto both ends of the second rotating shaft 15. For example... Figure 2 and Figure 5As shown, the power transmission component 8 is a pin. The end of the axle 7 furthest from the drive wheel 6 has multiple first radial insertion holes in its circumferential direction. The end of the second rotating shaft 15 used for insertion into the axle 7 has multiple second radial insertion holes in its circumferential direction. When the power transmission component 8 is simultaneously inserted into the corresponding first and second radial insertion holes, it connects the second rotating shaft 15 to the axle 7. At this time, there is no relative rotation between the second rotating shaft 15 and the axle 7, forming a stop-rotation engagement. When the drive motor 13 is working, power is transmitted to the first rotating shaft 14 through the first bevel gear 16, and then to the second rotating shaft 15 through the first sprocket 18 and chain 20, thereby driving the wheel 6 shaft to rotate and achieving automatic movement of the movable base 1. At this time, the push plate 3 moves in the opposite direction to the movable base 1. After the power transmission component 8 is pulled out from the first and second radial insertion holes, there is no connection between the second rotating shaft 15 and the axle 7. When the drive motor 13 is turned off, manually pushing the handle 27 moves the movable base 1 and the push plate 3 together. The armrest 27 has a button for controlling the opening and closing of the drive motor 13, and the movable base 1 has a battery that is electrically connected to the drive motor 13.

[0048] To improve the stability of the heat storage body 4 during movement, such as... Figure 4 As shown, each limiting side plate 2 has a mounting groove 32 extending in the left-right direction. Two limiting rods 25 are rotatably mounted in the mounting groove 32 via a hinge shaft 30. The two limiting rods 25 on the same limiting side plate 2 are arranged at intervals in the left-right direction. The hinge shaft 30 extends in the up-down direction and is equipped with a torsion spring 31 for driving it to reset. Figure 3 As shown, a connecting rod 28 is hinged to the middle position of the two limiting rods 25. The portion of the limiting rod 25 outside the connecting rod 28 is used to press downward against the heat storage body 4. This pressing refers to the limiting rod 25 contacting the heat storage body 4, limiting its movement in the vertical direction and applying pressure, but not a tight downward press. The push plate 3 is provided with a pushing part for pushing the limiting rod 25 to rotate around the hinge shaft 30 to release the pressure on the heat storage body 4. Figure 7 As shown, the pushing part includes a push rod 22 arranged vertically on the push plate 3 and a push block 23 connected to the left end of the push rod 22. The push block 23 is used to push the aforementioned limiting rod 25. Since the limiting rod 25 and the heat storage body 4 are in a pressure contact relationship, the push block 23 will inevitably rub against the heat storage body 4 at the top when it rotates against the limiting rod 25. Therefore, a pressing slope 24 is provided at the left end of the push block 23. When the pressing slope 24 contacts the limiting rod 25, it can tilt the limiting rod 25 upward by a set distance. This distance is very small, and the force applied by the pressing slope 24 to the limiting rod 25 will not affect the material properties of the limiting rod 25 itself.

[0049] The specific method of using the heat storage body replacement device for steel rolling furnace of the present invention is as follows: the heat storage body 4 to be replaced is placed in the receiving cavity formed by the movable base 1, the push plate 3 and the limiting side plate 2, and stacked from bottom to top. The limiting rod 25 is in the pressing position in the initial state. When placing the top heat storage body 4, the limiting rod 25 can be rotated manually. After placement, the hand is released and the limiting rod 25 returns to the pressing position to contact the heat storage body 4. The entire device is manually moved towards the heat storage chamber via the handle 27. At this time, the power transmission component 8 is disassembled. The moving base 1 and push plate 3 move to the left together. After moving into position, the power transmission component 8 is inserted into the first radial insertion hole and the corresponding second radial insertion hole. The drive motor 13 is then activated via a button. When the drive motor 13 is working, the push plate 3 moves to the left, pushing the heat storage body 4. During this process, the top block 23 on the push plate 3 simultaneously presses against the limit rod 25 to release it from its pressing state. Simultaneously, the drive motor 13 drives the drive wheel 6 shaft to rotate, and the moving base 1 and push plate 3 move in opposite directions, allowing the heat storage body 4 to quickly fall from the guide slope 26 of the moving base 1 into the heat storage chamber for replacement. After replacement, the drive motor 13 reverses, the push plate 3 resets, and the power transmission component 8 is removed. The entire heat storage body 4 replacement device for the steel rolling furnace is then pulled out.

[0050] The present invention only requires manual installation of the heat storage body 4. When replacing it, the heat storage body 4 can be automatically pushed into the heat storage chamber by the drive motor 13. No manual pushing is required, which saves manpower, improves the replacement efficiency of the heat storage body 4, and the replacement personnel will not be in a high-temperature environment for a long time, making the working environment safer.

[0051] In other embodiments, the base transmission mechanism may also employ a worm gear mechanism and a pulley mechanism. The worm gear mechanism includes a worm and a worm wheel meshing with the worm. The worm and the transmission screw are arranged coaxially and connected by a coupling. The worm wheel is rotatably assembled with the movable base via a third rotating shaft. The pulley mechanism includes a main pulley, a driven pulley, a belt, and a fourth rotating shaft. The main pulley is fixed on the third rotating shaft, and the driven pulley is fixed on the fourth rotating shaft. The fourth rotating shaft is coaxial with the axles of the two drive wheels.

[0052] In other embodiments, no reinforcing frame is provided between the nut slider and the push plate; instead, a reinforcing rod is provided only between the handrail and the push plate.

[0053] In other embodiments, the limiting rod may not be provided. In this case, a top plate is provided on top of the two limiting side plates. The top plate is connected to the two limiting side plates by hinge. The top plate can press against the heat storage body. A pull rope pulley mechanism is provided on the top of the handrail and the top plate for pulling the top plate to rotate. In this case, the person can press and loosen the top plate by pulling the pull rope pulley mechanism.

[0054] In the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

[0055] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heat regenerator replacement device for a steel rolling furnace, characterized in that, Includes a movable base, a limiting side plate, a push plate, and a push plate drive mechanism; With the length direction of the movable base as the left-right direction and the width direction as the front-back direction, a handrail is connected to the right end of the movable base. Multiple wheels are installed inside the movable base, and two of the wheels are arranged coaxially. The limiting side plate is installed on the movable base and two plates are arranged parallel to each other in the front-back direction; the push plate is located between the two limiting side plates, is movably assembled on the movable base in the left-right direction and is guided and cooperated with the two limiting side plates. The push plate, the two limiting side plates and the movable base form a cavity for stacking multiple heat storage bodies. The push plate drive mechanism includes a drive component and a push plate transmission mechanism connected between the drive component and the push plate. A base transmission mechanism is provided between the drive component and the axles of two coaxially arranged traveling wheels. A power transmission component for cutting off and transmitting power between the drive component and the traveling wheels is detachably connected between the base transmission mechanism and the two axles. When the power transmission component is installed, the drive component simultaneously drives the moving base and the push plate to move in opposite directions. When the power transmission component is disassembled, the power between the drive component and the traveling wheels is cut off.

2. The regenerator replacement device for steel rolling furnace according to claim 1, characterized in that, The push plate transmission mechanism is a screw and nut transmission mechanism, including a transmission screw rotatably mounted on a movable base and a nut slider threadedly connected to the transmission screw. The push plate and the nut slider are fixedly connected. The driving component is a drive motor. The output shaft of the drive motor and the transmission screw both extend in the left and right direction. The movable base is also provided with a slide rail that guides the push plate.

3. The regenerator replacement device for steel rolling furnace according to claim 2, characterized in that, The base transmission mechanism includes a bevel gear mechanism and a sprocket mechanism. The bevel gear mechanism includes a first rotating shaft rotatably mounted on the movable base, a first bevel gear coaxially fixed on the transmission screw, and a second bevel gear coaxially connected to the first rotating shaft. The first bevel gear meshes with the second bevel gear, and the first rotating shaft is arranged perpendicular to the transmission screw. The sprocket mechanism includes a second rotating shaft rotatably mounted on the movable base, a first sprocket coaxially fixed on the first rotating shaft, a second sprocket coaxially fixed on the second rotating shaft, and a chain meshing between the first sprocket and the second sprocket. The second rotating shaft is parallel to the first rotating shaft and coaxially arranged with the wheel axle. The two ends of the second rotating shaft are respectively inserted into the two wheel axles or sleeved on the two wheel axles. The power transmission component is a pin that passes through the second rotating shaft and the corresponding side wheel axle to prevent the second rotating shaft from rotating.

4. The regenerator replacement device for steel rolling furnace according to claim 3, characterized in that, The axle is a hollow shaft, and the diameter of the axle is larger than the diameter of the second shaft. The axle has multiple first radial insertion holes on its circumference at the end furthest from the walking wheel, and the second shaft has multiple second radial insertion holes on its circumference at the end for insertion into the axle. The power transmission component is used to be inserted into the corresponding first and second radial insertion holes.

5. The regenerator replacement device for steel rolling furnaces according to any one of claims 2-4, characterized in that, A reinforcing frame is connected between the nut slider and the push plate.

6. The regenerator replacement device for steel rolling furnace according to claim 5, characterized in that, A reinforcing rod connects the handrail and the reinforcing frame. The reinforcing rod includes an inclined section and a horizontal section. The inclined section is connected to the handrail, and the horizontal section is connected to the reinforcing frame. The horizontal section is a telescopic rod with an adjustable length.

7. The regenerator replacement device for steel rolling furnaces according to any one of claims 1-4, characterized in that, Each limiting side plate is equipped with a limiting rod via a hinge shaft. The hinge shaft extends in the vertical direction and is equipped with a torsion spring for resetting it. The limiting rod is used to press down on the heat storage body. The push plate is equipped with a pushing part for pushing the limiting rod to rotate around the hinge shaft and release the pressure on the heat storage body.

8. The heat regenerator replacement device for steel rolling furnace according to claim 7, characterized in that, Two limiting rods are assembled on the same limiting side plate, and a connecting rod is hinged to the middle of the two limiting rods. The part of the limiting rod located outside the connecting rod is used to press against the heat storage body.

9. The regenerator replacement device for steel rolling furnace according to claim 8, characterized in that, The pushing part includes a push rod arranged vertically on a push plate and a push block connected to the left end of the push rod. The push block is used to push the limiting rod. The push block has a pressing slope. When the pressing slope contacts the limiting rod, it is used to tilt the limiting rod upward by a set distance.

10. The regenerator replacement device for steel rolling furnaces according to any one of claims 1-4, characterized in that, The left end of the movable base is provided with a guide ramp for guiding the heat storage body to slide down.

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