Heating furnace heat accumulator replacing device for steel rolling

Abstract

The invention belongs to the technical field of auxiliary dumping load devices, and particularly relates to a steel rolling heating furnace heat accumulator replacing device which comprises a movable base, limiting side plates, a push plate and a push plate driving mechanism, a plurality of walking wheels are installed in the movable base, two walking wheels are coaxially arranged, and the two limiting side plates are arranged on the movable base in parallel front and back; the push plate is located between the two limiting side plates, movably assembled on the movable base and matched with the two limiting side plates in a guiding mode, and the push plate, the two limiting side plates and the movable base define a containing cavity used for stacking a plurality of heat accumulators; the push plate driving mechanism comprises a driving piece and a push plate transmission mechanism connected between the driving piece and the push plate, and a base transmission mechanism is arranged between the driving piece and the wheel shafts of the two coaxially-arranged walking wheels. A power transmission part used for cutting off and transmitting power between the driving part and the walking wheels is detachably connected between the base transmission mechanism and the two wheel shafts. The replacement efficiency of the heat accumulator can be improved, and the safety is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of devices for assisting unloading of loads by dumping, and in particular relates to a heat storage body replacement device for a heating furnace used for steel rolling. Background Art

[0002] Steel rolling is the process of processing steel ingots or billets through the rotating pressure of rollers to change their shape, size and properties to make them into various steel products. Before steel rolling, the billet needs to be heated to a suitable rolling temperature. The regenerative heating furnace can effectively heat the billet to the required rolling temperature and is widely used in the process of steel rolling. The heating principle of the regenerative heating furnace is to use a regenerative body (usually a ceramic regenerative body) to recover the waste heat of high-temperature flue gas. When the high-temperature flue gas passes through the regenerative body, the regenerative body absorbs heat, and then the cold air (or coal gas) is heated by the regenerative body in the reverse flow process. The heated air (or coal gas) is then used to burn and heat the billet.

[0003] During long-term use, dust, impurities and by-products of combustion are easily accumulated on the surface of the heat storage body. For example, when the combustion is incomplete, substances such as tar and carbon black may be produced, which will adhere to the pores and surface of the heat storage body, causing the pores of the heat storage body to be blocked. As the blockage intensifies, the resistance of airflow through the heat storage body will increase significantly, reducing the flow of air (or gas) and flue gas, thereby affecting the heat exchange efficiency. In addition, the heat storage body will be subjected to thermal stress during repeated heating and cooling cycles. Because the heat storage body absorbs heat and the temperature rises during heating, and it will cool down rapidly during the cooling stage, this frequent temperature change will cause thermal stress inside the heat storage body. Long-term thermal stress may cause cracks, peeling or even breakage of the heat storage body, reducing the heat storage capacity and structural integrity of the heat storage body. Therefore, after long-term use, the heat storage body needs to be replaced to ensure the normal function of the thermal storage furnace.

[0004] Usually, multiple heat storage bodies are stacked together. This stacking method helps to make full use of the space in the heating furnace and achieve efficient heat storage and heat exchange functions. Therefore, multiple heat storage bodies are usually replaced at one time. The existing method of replacing heat storage bodies is manual replacement, that is, each heat storage body is manually installed into the heat storage box. The manual operation is restricted by the high temperature environment and narrow space in the heat storage box, and the operation time is long and the work efficiency is low. In addition, the high temperature in the heat storage box also has a certain impact on the safety of construction workers. Summary of the invention

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

[0006] In order to solve the above problems, the heat storage body replacement device for a heating furnace for steel rolling provided by the present invention adopts the following technical solutions:

[0007] A heat storage body replacement device for a heating furnace for steel rolling comprises a mobile base, a limiting side plate, a push plate, and a push plate driving mechanism; the length direction of the mobile base is the left-right direction, the width direction is the front-back direction, and the right end of the mobile base is connected to a handrail, a plurality of running wheels are installed in the mobile base, and two of the running wheels are coaxially arranged; the limiting side plate is installed on the mobile base and two are arranged in parallel in the front-back direction; the push plate is located between the two limiting side plates, movably assembled on the mobile base along the left-right direction and cooperated with the two limiting side plates for guiding, and a receiving cavity for stacking a plurality of heat storage bodies is formed between the push plate, the two limiting side plates and the mobile base;

[0008] The push plate driving mechanism includes a driving member and a push plate transmission mechanism connected between the driving member and the push plate, a base transmission mechanism is provided between the driving member and the wheel axles of two coaxially arranged running wheels, a power transmission member for cutting off and transmitting power between the driving member and the running wheels is detachably connected between the base transmission mechanism and the two wheel axles, when the power transmission member is installed, the driving member simultaneously drives the mobile base and the push plate to move in opposite directions, and when the power transmission member is disassembled, the power between the driving member and the running wheels is cut off

[0009] The beneficial effects of the present invention are as follows: when the present invention is used, the heat storage body is stacked in the accommodating cavity formed by the two limiting side plates and the push plate. With the assistance of the moving wheels, the construction personnel can easily push the entire device to the position where the heat storage body is replaced through the handrail; then the power transmission component is installed and the driving component is turned on. When the driving component is working, on the one hand, the push plate is driven to move, and the multiple heat storage bodies are pushed toward the heat storage chamber as a whole. At the same time, the mobile base retreats in the opposite direction of the movement of the heat storage body, so as to realize the placement of the heat storage body as a whole from the mobile base into the corresponding heat storage chamber. After the heat storage body is placed, the power transmission component is removed, and the mobile base can be pulled by the handrail to make the entire device leave the heat storage chamber. The present invention can realize the replacement of multiple heat storage bodies at one time. During the replacement process, personnel can operate outside the heat storage chamber, and the operation is safer; under the action of the driving component, the heat storage body can be automatically pushed into the heat storage chamber, which saves trouble and labor for the operators and improves work efficiency.

[0010] Furthermore, the push plate transmission mechanism is a screw-nut transmission mechanism, including a transmission screw rotatably assembled on a movable base and a nut slider threadedly connected to the transmission screw, and the push plate is fixedly connected to the nut slider; the driving member is a driving motor, and the output shaft of the driving motor and the transmission screw both extend in the left and right directions, and the movable base is also provided with a slide rail that cooperates with the push plate guide.

[0011] Beneficial effects: When the screw nut transmission mechanism is adopted, the transmission is stable and reliable, and the moving distance of the push plate is easier to control, which is also conducive to the reasonable design of 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 assembled 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 is meshed with the second bevel gear, and the first rotating shaft is arranged vertically with the transmission screw; the sprocket mechanism includes a second rotating shaft rotatably assembled 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 meshed between the first sprocket and the second sprocket; the second rotating shaft is parallel to the first rotating shaft and is arranged coaxially with the wheel axle, the two ends of the second rotating shaft are respectively inserted into the two wheel axles or are sleeved outside the two wheel axles, and the power transmission member is a pin that simultaneously passes through the second rotating shaft and the corresponding side wheel axle 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, occupies a small space, and can reasonably utilize the space on the mobile base; the power transmission part adopts a latch, has a simple structure, and is easy to assemble and disassemble.

[0014] Furthermore, the wheel axle is a hollow shaft, and the diameter of the wheel axle is larger than the diameter of the second rotating shaft; a plurality of first radial holes are provided in the circumferential direction of one end of the wheel axle away from the walking wheel, and a plurality of second radial holes are provided in the circumferential direction of one end of the second rotating shaft for inserting into the wheel axle, and the power transmission component is used to be inserted into the corresponding first radial holes and second radial holes.

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

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

[0017] Beneficial effect: Since the height of the push plate is relatively high and the connection area between the nut slider and the push plate is relatively small, setting up a 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 reinforcement rod is connected between the handrail and the reinforcement frame, and the reinforcement 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 reinforcement frame, and the horizontal rod segment is a telescopic rod with adjustable length.

[0019] Beneficial effect: The reinforcement rod can further support and reinforce the push plate, ensuring that the push plate does not deform and the thermal storage body is pushed out stably.

[0020] Furthermore, each limiting side plate is equipped with a limiting rod through a hinge shaft rotation, the hinge shaft extends in the up and down directions, the hinge shaft is provided with a torsion spring for driving it to reset, and the limiting rod is used to press downward on the heat storage body; the push plate is provided with a pushing part for pushing the limiting rod to make it rotate around the hinge shaft to release the pressure on the heat storage body.

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

[0022] Furthermore, two limit rods are mounted on the same limit side plate, a connecting rod is hinged in the middle of the two limit rods, and the portion of the limit rod located outside the connecting rod is used to press the heat storage body.

[0023] Beneficial effect: two limit rods are provided to increase the pressure contact area on the heat storage body and further ensure the positioning of the heat storage body. When the two limit rods are hinged with a connecting rod, under the pushing action of the pushing part, the two connecting rods can rotate at the same time to release the pressure contact on the heat storage body.

[0024] Furthermore, the pushing part includes a push rod arranged perpendicular to the push plate and a push block connected to the left end of the push rod, the push block is used to push the limit rod, and the push block has a push slope, which is used to lift the limit rod upward by a set distance when the push slope contacts the limit rod.

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

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

[0027] Beneficial effect: Under the action of the guiding slope, the heat storage body is easy to fall from the mobile base, and the guiding slope has a certain slope to cushion the heat storage body, thereby preventing the whole stack of heat storage bodies from being damaged due to impact when falling directly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0029] Figure 1 It is a structural schematic diagram of a heat storage body replacement device for a steel rolling heating furnace of the present invention;

[0030] Figure 2 It is a top view of the structure of the mobile base;

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

[0032] Figure 4 The main view showing the installation of the limit rod 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 parts;

[0034] Figure 6 A schematic diagram showing the assembly between the driving member, the push plate and the push plate transmission mechanism;

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

[0036] Description of reference numerals:

[0037] 1. Mobile base; 2. Limiting side plate; 3. Push plate; 4. Heat storage body; 5. Travel wheel; 6. Driving wheel; 7. Wheel axle; 8. Power transmission part; 9. Slide rail; 10. Driving screw; 11. Nut slider; 12. Horizontal rod section; 13. Driving 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. Reinforcement frame; 22. Push rod; 23. Push block; 24. Pressing inclined plane; 25. Limiting rod; 26. Guide inclined plane; 27. Handrail; 28. Connecting rod; 29. ​​Tilting rod section; 30. Articulated shaft; 31. Torsion spring; 32. Mounting groove. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

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

[0040] Embodiments of the heat storage body replacement device for a heating furnace for steel rolling provided by the present invention:

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

[0042] Specifically, Figure 2 As shown, the overall shape of the mobile base 1 is a rectangular parallelepiped structure. In this embodiment, for ease of expression, the length direction of the mobile base 1 is the left-right direction, and the width direction is the front-back direction. The mobile base 1 is made of high-temperature resistant stainless steel; the handrail 27 is welded to the right end of the mobile base 1, and the handrail 27 is L-shaped, and the inner angle of the L-shape is an obtuse angle.

[0043] Four rectangularly distributed running wheels 5 are installed in the mobile base 1, and the staff can push the mobile base 1 to move left and right through the handrail 27. Although the running wheels 5 are installed, the bottom of the mobile base 1 is still at a small distance from the ground and does not directly rub against the ground. Figure 1 As shown, the left end of the movable base 1 is provided with a guiding slope 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, the limiting side plate 2 is welded on the mobile base 1, and two pieces are arranged in parallel in the front-to-back direction. The push plate 3 is located between the two limiting side plates 2 and can move in the left-right direction. The push plate 3, the two limiting side plates 2 and the mobile base 1 form a receiving cavity for stacking multiple heat storage bodies 4. When the push plate 3 moves, the heat storage body 4 in the receiving cavity is pushed into the heat storage chamber. In order to improve the stability of the movement of the push plate 3, the limiting side plate 2 is also provided with a slide groove that cooperates with the guide of the push plate 3, and the slide groove extends in the left-right direction.

[0045] The push plate driving mechanism includes a driving member and a push plate transmission mechanism connected between the driving member and the push plate 3. In this embodiment, Figure 1 , Figure 2 and Figure 6As shown, the driving member is a driving motor 13, which is fixed on the mobile base 1, and the output shaft of the driving motor 13 extends in the left-right direction. The push plate transmission mechanism is a screw nut transmission mechanism, including a transmission screw 10 rotatably assembled on the mobile 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. In order to prevent the push plate 3 from deforming, a reinforcement frame 21 is connected between the nut slider 11 and the push plate 3. At the same time, a reinforcement rod is connected between the handrail 27 and the reinforcement frame 21. The reinforcement rod is also an L-shaped rod, such as Figure 1 As shown, the inner angle of the L-shaped rod is an obtuse angle, and it 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 reinforcement frame 21. The horizontal rod segment 12 is a telescopic rod with adjustable length to adapt to the movement of the push plate 3. The output shaft of the drive motor 13 is connected to the transmission screw 10 through a coupling, as shown in FIG. Figure 2 As shown, the movable base 1 is provided with a slide rail 9 which is in cooperation with the push plate 3, and the slide rail 9 is parallel to the coupling. When the driving motor 13 is running, it drives the driving screw 10 to rotate, thereby pushing the push plate 3 to move in the left and right directions.

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

[0047] In this embodiment, 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 on 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, and the first rotating shaft 14 is arranged vertically with the transmission screw 10. The sprocket mechanism includes a second rotating shaft 15, a first sprocket 18 coaxially fixed on the first rotating shaft 14, a second sprocket 19 coaxially fixed on the second rotating shaft 15, and a chain 20 meshed between the first sprocket 18 and the second sprocket 19. Two first support plates for rotating the first rotating shaft 14 and two second support plates for rotating the second rotating shaft 15 are vertically arranged on the right side of the push plate 3 on the mobile base 1. The second rotating shaft 15 is parallel to the first rotating shaft 14, and the second rotating shaft 15 is coaxially arranged with the wheel shaft 7 of the two driving wheels 6. The wheel shaft 7 is a hollow shaft, and its diameter is larger than the diameter of the second rotating shaft 15; the two wheel shafts 7 are respectively sleeved on both ends of the second rotating shaft 15. Figure 2 and Figure 5As shown, the power transmission member 8 is a latch, and a plurality of first radial insertion holes are provided in the circumferential direction of the end of the wheel shaft 7 away from the driving wheel 6, and a plurality of second radial insertion holes are provided in the circumferential direction of the end of the second rotating shaft 15 for inserting into the wheel shaft 7. When the power transmission member 8 is inserted into the corresponding first radial insertion hole and the second radial insertion hole at the same time, the second rotating shaft 15 can be connected with the wheel shaft 7. At this time, there is no relative rotation between the second rotating shaft 15 and the wheel shaft 7, which is a stop-rotation fit relationship. When the driving motor 13 is working, the power is transmitted to the first rotating shaft 14 through the first bevel gear 16, and then transmitted to the second rotating shaft 15 through the first sprocket 18 and the chain 20, and then the driving wheel 6 axis rotates to realize the automatic movement of the mobile base 1. At this time, the push plate 3 and the mobile base 1 move in opposite directions. After the power transmission member 8 is pulled out from the first radial insertion hole and the second radial insertion hole, there is no connection relationship between the second rotating shaft 15 and the wheel shaft 7. When the driving motor 13 is turned off, the handrail 27 is manually pushed, and the mobile base 1 and the push plate 3 move together. The armrest 27 is provided with a button for controlling the opening and closing of the driving motor 13 , and the mobile base 1 is provided with a battery electrically connected to the driving motor 13 .

[0048] In order to improve the stability of the heat storage body 4 during the movement process, Figure 4 As shown, each limiting side plate 2 is provided with a mounting groove 32 extending in the left-right direction, and two limiting rods 25 are rotatably mounted in the mounting groove 32 through 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 a torsion spring 31 is provided on the hinge shaft 30 for driving it to return to its original position. Figure 3 As shown, a connecting rod 28 is hingedly connected between the two limit rods 25, and the portion of the limit rod 25 outside the connecting rod 28 is used to press down the heat storage body 4. The pressing here means that the limit rod 25 contacts the heat storage body 4, and can limit the heat storage body 4 in the up and down directions, exerting a certain pressure on the heat storage body 4, but not pressing it down. The push plate 3 is provided with a pushing portion for pushing the limit rod 25 to rotate around the hinge shaft 30 to release the pressing contact on the heat storage body 4, as shown in FIG. 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, and the push block 23 is used to push the above-mentioned limit rod 25. Since there is a pressure contact relationship between the limit rod 25 and the heat storage body 4, when the push block 23 rotates against the movable limit rod 25, it is inevitable that friction will occur between the top heat storage body 4, so a push slope 24 is set at the left end of the push block 23, and when the push slope 24 contacts the limit rod 25, the limit rod 25 can be tilted upward by a set distance, which is very small, and the force applied by the push slope 24 to the limit rod 25 will not affect the material properties of the limit rod 25 itself.

[0049] The specific method of using the heat storage body replacement device for a heating furnace for steel rolling of the present invention is: place the heat storage body 4 to be replaced in the accommodating cavity surrounded by the movable base 1, the push plate 3 and the limiting side plate 2, and stack them 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 manually rotated. After placement, the hand is released, and the limiting rod 25 returns to press the heat storage body 4. The whole device is pushed by hand through the handrail 27 to move toward the heat storage chamber. At this time, the power transmission member 8 is in the disassembled state, and the mobile base 1 moves to the left together with the push plate 3. After moving into place, the power transmission member 8 is inserted into the first radial socket and the corresponding second radial socket. At this time, the driving motor 13 is started by the button. When the driving motor 13 works, the push plate 3 moves to the left to push the heat storage body 4. In this process, the top block 23 on the push plate 3 synchronously presses the limit rod 25 to release the pressure contact state. At the same time, the driving motor 13 drives the wheel 6 to rotate, and the mobile base 1 and the push plate 3 move in opposite directions respectively, so that the heat storage body 4 can quickly fall from the guide slope 26 of the mobile base 1 into the heat storage chamber to complete the replacement. After the replacement, the driving motor 13 is reversed, the push plate 3 is reset, and after the power transmission member 8 is removed, the heat storage body 4 replacement device for the heating furnace for steel rolling is pulled out as a whole.

[0050] The present invention only requires manual installation of the heat storage body 4. When replacing, the heat storage body 4 can be automatically pushed into the heat storage chamber under the action of the driving motor 13, without manual pushing, saving manpower, improving the replacement efficiency of the heat storage body 4, and the replacement personnel will not continue to be in a high temperature environment, and the working environment is safer.

[0051] In other embodiments, the base transmission mechanism may also adopt a worm gear mechanism and a pulley mechanism, wherein the worm gear mechanism includes a worm and a worm wheel meshing with the worm, the worm is coaxially arranged with the transmission screw and connected through a coupling, and the worm wheel is rotatably assembled with the movable base through a third rotating shaft; the pulley mechanism includes a main pulley, a slave pulley, a belt and a fourth rotating shaft, the main pulley is fixed on the third rotating shaft, the slave pulley is fixed on the fourth rotating shaft, and the fourth rotating shaft is coaxial with the wheel axles of the two driving wheels.

[0052] In other embodiments, no reinforcement frame is provided between the nut slider and the push plate, and only a reinforcement rod is provided 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 the top of the two limiting side plates, and the top plate is connected to the two limiting side plates in a hinged manner. The top plate can press and touch the heat storage body, and a pull rope pulley mechanism for pulling the top plate to flip is provided on the top of the handrail and the top plate. In this case, the personnel can press and touch and tighten the top plate through the pull rope pulley mechanism.

[0054] In the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

[0055] The above are only 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 in the protection scope of the present invention.

Claims

1. A heat storage body replacement device for a heating furnace for steel rolling, characterized in that: It includes a moving base, a limiting side plate, a push plate, and a push plate driving mechanism; The length direction of the mobile base is the left-right direction, the width direction is the front-back direction, the right end of the mobile base is connected to a handrail, and a plurality of running wheels are installed in the mobile base, and two of the running wheels are coaxially arranged; The limiting side plates are installed on the mobile base and two plates are arranged in parallel in the front-back direction; the push plate is located between the two limiting side plates, movably assembled on the mobile base along the left-right direction and cooperated with the two limiting side plates to guide, and a receiving cavity for stacking multiple heat storage bodies is formed between the push plate, the two limiting side plates and the mobile base; The push plate driving mechanism includes a driving member and a push plate transmission mechanism connected between the driving member and the push plate. A base transmission mechanism is provided between the driving member and the axles of 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 axles. When the power transmission member is installed, the driving member simultaneously drives the mobile base and the push plate to move in opposite directions. When the power transmission member is disassembled, the power between the driving member and the walking wheels is cut off.

2. The heat storage body replacement device for a heating furnace for steel rolling according to claim 1, characterized in that: The push plate transmission mechanism is a screw-nut transmission mechanism, including a transmission screw rotatably assembled on a movable base and a nut slider threadedly connected to the transmission screw, and the push plate is fixedly connected to the nut slider; the driving member is a driving motor, and the output shaft of the driving motor and the transmission screw both extend in the left and right directions, and the movable base is also provided with a slide rail that cooperates with the push plate guide.

3. The heat storage body replacement device for a heating furnace for steel rolling according to claim 2, characterized in that: The transmission mechanism of the base includes a bevel gear mechanism and a sprocket mechanism, the bevel gear mechanism includes a first rotating shaft rotatably assembled 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 meshing with the second bevel gear, and the first rotating shaft is arranged vertically with the transmission screw; the sprocket mechanism includes a second rotating shaft rotatably assembled 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 is arranged coaxially with the wheel axle, and the two ends of the second rotating shaft are respectively inserted into the two wheel axles or sleeved outside the two wheel axles, and the power transmission member is a pin that simultaneously passes through the second rotating shaft and the corresponding side wheel axle to prevent the second rotating shaft from rotating with the wheel axle.

4. The heat storage body replacement device for a heating furnace for steel rolling according to claim 3, characterized in that: The wheel axle is a hollow shaft, and the diameter of the wheel axle is larger than the diameter of the second rotating shaft; a plurality of first radial holes are provided in the circumferential direction of one end of the wheel axle away from the traveling wheel, and a plurality of second radial holes are provided in the circumferential direction of one end of the second rotating shaft for inserting into the wheel axle, and the power transmission component is used to be inserted into the corresponding first radial holes and the second radial holes.

5. The heat storage body replacement device for a heating furnace for steel rolling according to any one of claims 2 to 4, characterized in that: A reinforcement frame is connected between the nut slider and the push plate.

6. The heat storage body replacement device for a heating furnace for steel rolling according to claim 5, characterized in that: A reinforcement rod is connected between the handrail and the reinforcement frame. The reinforcement rod comprises an inclined rod section and a horizontal rod section. The inclined rod section is connected to the handrail, and the horizontal rod section is connected to the reinforcement frame. The horizontal rod section is a telescopic rod with adjustable length.

7. The heat storage body replacement device for a heating furnace for steel rolling according to any one of claims 1 to 4, characterized in that: A limiting rod is assembled on each limiting side plate through rotation of a hinge shaft, the hinge shaft extends in the up and down directions, a torsion spring is provided on the hinge shaft for driving it to reset, and the limiting rod is used to press downward on the heat storage body; the push plate is provided with a pushing part for pushing the limiting rod to make it rotate around the hinge shaft to release the pressure on the heat storage body.

8. The heat storage body replacement device for a heating furnace for steel rolling according to claim 5, characterized in that: Two limit rods are mounted on the same limit side plate, a connecting rod is hinged in the middle of the two limit rods, and the part of the limit rod located outside the connecting rod is used for pressing the heat storage body.

9. The heat storage body replacement device for a heating furnace for steel rolling according to claim 6, characterized in that: The pushing portion includes a push rod arranged vertically on the push plate and a push block connected to the left end of the push rod, the push block is used to push the limit rod, and the push block is provided with a push slope, which is used to lift the limit rod upward by a set distance when the push slope contacts the limit rod.

10. The heat storage body replacement device for a heating furnace for steel rolling according to any one of claims 1 to 4, characterized in that: The left end of the movable base is provided with a guiding slope for guiding the heat storage body to slide down.

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