A novel electric furnace transformer and method of use thereof

Abstract

The application discloses a novel electric furnace transformer and a use method thereof, which comprise a placing box and a transformer body arranged in the placing box, a placing plate is slidably arranged in the placing box, and a partition square frame is fixedly arranged on the top of the placing plate, and belongs to the technical field of transformers. The novel electric furnace transformer and the use method thereof are characterized in that the first toothed plate, the rotating shaft, the slot, the long gear, the second toothed plate, the first limiting plate, the third toothed plate and the second limiting plate are matched, after the transformer body is in contact with the placing plate, the placing plate is driven to descend by the gravity of the transformer, the first toothed plate drives the long gear to rotate, the second toothed plate and the third toothed plate are driven to move away from each other, the second toothed plate drives the first limiting plate to be attached to one side of the transformer body, the third toothed plate drives the second limiting plate to be attached to the other side of the transformer body, the stable limitation of the transformer body is realized, and the bolts are not needed, and the disassembly and assembly are more convenient.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, specifically to a novel electric furnace transformer and its usage method. Background Technology

[0002] As transformers specifically designed to provide power to various electric furnaces, industrial electric furnace transformers can be broadly categorized into three types: resistance furnace transformers, electric arc furnace transformers, and induction furnace transformers. Resistance furnace transformers are used in resistance furnaces and salt bath furnaces for heating mechanical parts, heat treatment, powder metallurgy sintering, and non-ferrous metal smelting. Because the resistance of the heating element is too low, or the resistance changes too much during the heating process, a resistance transformer is needed between the furnace and the power grid to reduce and regulate the input voltage of the electric furnace.

[0003] Electric furnace transformers tend to generate a lot of heat during operation, and most rely on fans for heat dissipation. However, relying solely on fans for heat dissipation is inefficient, leading to heat accumulation that is difficult to dissipate quickly. This can easily cause transformer malfunctions and result in unsatisfactory performance.

[0004] As described in application number 202021318197.0, a novel oil-immersed electric furnace transformer is provided. By setting up a heat dissipation mechanism and a cooling mechanism, the first water pump is started to draw water from the water storage tank and deliver it to the heat dissipation copper pipe, thereby carrying away the heat from the heat dissipation copper pipe. In conjunction with the fan body, the heat dissipation is accelerated.

[0005] Based on the above information, it can be seen that air cooling and water cooling are still the main heat dissipation methods for electric furnace transformers. With this structural design, a large amount of scale is easily generated when water is used for heat exchange, which seriously affects the heat exchange efficiency. In addition, electric furnace transformers generate a lot of noise during use, and the use of fans for heat dissipation further increases the noise level. Furthermore, electric furnace transformers are often installed using a large number of bolts, making disassembly and assembly quite cumbersome. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a novel electric furnace transformer and its usage method. It solves the problems of conventional electric furnace transformers, which often use a large number of bolts for installation, making disassembly and assembly cumbersome. Furthermore, the use of water for heat exchange with the transformer body easily leads to the generation of a large amount of scale, affecting heat exchange efficiency, and also fails to reduce noise.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a novel electric furnace transformer, comprising a placement box and a transformer body disposed inside the placement box. A placement plate is slidably installed inside the placement box, and an isolation frame is fixedly installed on the top of the placement plate. The transformer body is fixedly installed on the top of the placement plate and disposed inside the isolation frame. Two rotating shafts are rotatably connected between the front and rear sides of the inner cavity of the placement box, and the two rotating shafts are respectively disposed on the left and right sides of the transformer body. A slot adapted to the rotating shaft is opened on the top of the isolation frame. Long gears are sleeved and fixedly connected to the front and rear sides of the outer surface of the rotating shafts. First toothed plates adapted to the long gears are fixedly connected to the front and rear sides of the top of the placement plate, located on the left and right sides of the transformer body. A... The transformer is equipped with a connecting plate, and a guide is fixedly connected to the top of the connecting plate. A second toothed plate and a third toothed plate are sequentially and slidably connected through the right side of the guide from top to bottom. The guide includes two sheaths and two connecting rods. The opposite sides of the two sheaths are fixedly connected to the two ends of the two connecting rods, respectively. The top sheath cooperates with the second toothed plate, and the bottom sheath cooperates with the third toothed plate. One side of the sheath slides in contact with the surface of the transformer body, and the bottom of the bottom sheath is fixedly connected to the top of the connecting plate. The second and third toothed plates cooperate with a long gear. The right ends of the two second toothed plates are fixedly connected to a first limiting plate, and the left sides of the two third toothed plates are fixedly connected to a second limiting plate. The opposite sides of the first and second limiting plates are in contact with the left and right sides of the transformer body.

[0008] By adopting the above technical solution, through the cooperation of the first toothed plate, rotating shaft, slot, long gear, second toothed plate, first limiting plate, third toothed plate, and second limiting plate, after the transformer body contacts the placement plate, the weight of the transformer drives the placement plate to descend, causing the first toothed plate to drive the long gear to rotate, and causing the second and third toothed plates to move away from each other. The second toothed plate drives the first limiting plate to fit against one side of the transformer body, and the third toothed plate drives the second limiting plate to fit against the other side of the transformer body, thus achieving stable constraint of the transformer body. No bolts are required, making disassembly and assembly more convenient.

[0009] The invention is further configured such that: an oil pump is fixedly connected to the top of the inner cavity of the isolation frame; the input end of the oil pump is connected to an oil inlet pipe; the bottom end of the oil inlet pipe extends to the top of the placement plate; the output end of the oil pump is connected to an oil outlet pipe; a guide rod is fixedly connected to the bottom of the placement box; the top end of the guide rod passes through the placement plate and is fixedly connected to a filter frame; the outer surface of the filter frame slides in contact with the inner surface of the placement box; the inner surface of the filter frame slides in contact with the outside of the isolation frame; one end of the oil outlet pipe passes through the isolation frame and extends to the top of the filter frame; and several oil passage holes are provided on the top of the placement plate and on both sides of the isolation frame.

[0010] The invention is further configured such that: a sealing frame is slidably installed between the placement box and the isolation frame; the sealing frame is disposed between the filter frame and the placement plate; the top of the sealing frame has a through hole adapted to the guide rod; a spring is sleeved on the outer surface of the guide rod; the two ends of the spring are fixedly connected to the opposite side of the sealing frame and the filter frame, respectively; a sealing rod is fixedly connected to the bottom of the filter frame; and an oil leakage hole adapted to the sealing rod is opened on the top of the sealing frame; and several heat-conducting columns are embedded and fixedly installed on the outer periphery of the placement box.

[0011] By adopting the above technical solution, the oil is separated by an isolation frame and a placement plate. The oil pump transports the oil that has already undergone heat exchange near the transformer body to the outside of the isolation frame. With the addition of a filter frame and heat-conducting columns, the heat dissipation of the oil after heat exchange is accelerated. The sealing frame retains the oil after heat exchange, and the heat-conducting columns dissipate heat from the retained oil. With the cooperation of springs, sealing rods, and oil leakage holes, when the weight of the oil accumulated on the sealing frame exceeds the combined spring force, the sealing frame begins to descend until it detaches from the sealing rod. The cooled oil then falls, achieving oil cooling and ensuring effective heat dissipation for the transformer body.

[0012] The present invention is further configured such that: a box cover is fixedly connected to the top of the placement box, a drive motor is fixedly connected to the left side of the top of the box cover, the output end of the drive motor passes through the box cover and is fixedly connected to a spline column, and the drive end of the oil pump is fixedly connected to a spline cylinder adapted to the spline column.

[0013] The present invention is further configured such that: a first stirring rod is rotatably connected to both the front and rear sides of the bottom of the box cover via bearings; the first stirring rod and the spline column are connected by a first belt assembly; a second stirring rod is rotatably connected to the right side of the bottom of the box cover via bearings; and the second stirring rod and a first stirring rod are connected by a second belt assembly.

[0014] The present invention is further configured such that: both the first stirring rod and the second stirring rod are disposed between the isolation frame and the transformer body, and both sides of the bottom of the first stirring rod and the second stirring rod are rotatably connected to stirring blades.

[0015] By adopting the above technical solution, the drive motor is used as the power source. With the cooperation of the spline column and spline cylinder, the oil pump is driven to work, and the oil inside the isolation frame is pumped to the top of the filter screen frame. With the setting of the first belt assembly and the second belt assembly, the rotation drive of the first stirring rod and the second stirring rod is realized. With the setting of the rotating stirring plate, the oil on the outside of the transformer body is agitated, which accelerates the heat exchange speed between the transformer body and the oil. Moreover, with the setting of the rotating stirring plate, it is convenient to assemble the tank cover and the placement box.

[0016] The present invention is further configured such that: a plurality of heat exchange tubes are fixedly connected between the left and right sides of the inner cavity of the placement box, and the plurality of heat exchange tubes are all arranged below the placement plate, and air holes communicating with the heat exchange tubes are opened on the left and right sides of the placement box.

[0017] By adopting the above technical solution, the oil at the bottom of the chamber is heated by the heat exchange tube and the air vent, thereby further accelerating the oil's dissipation rate.

[0018] This invention also discloses a method for using a novel electric furnace transformer, specifically including the following steps:

[0019] Step 1, Assembly: Remove the cover, pull up the placement plate, lift the transformer body and bring it into contact with the placement plate, then slowly lower the transformer body and placement plate. As the transformer body descends, it drives the placement plate to move downward along the guide rod. The placement plate drives the first toothed plate to move downward. During the downward movement of the first toothed plate, it drives the long gear to rotate. The two long gears on the left drive the second toothed plate to move to the left, so that the first limiting plate is in contact with the right side of the transformer body. At the same time, the two long gears on the right drive the third toothed plate to move to the right, so that the second limiting plate is in contact with the left side of the transformer body. The assembly is complete.

[0020] Step 2, Cooling: Add oil to the placement box until it is below the slot opening. The heat generated by the transformer body during operation exchanges heat with the oil. When the transformer body is working, start the drive motor. The drive motor drives the spline column to rotate, which in turn drives the spline cylinder to rotate, driving the oil pump. The oil pump draws the oil after heat exchange on the placement plate through the oil inlet pipe. The oil after heat exchange is sprayed onto the filter plate through the oil outlet pipe and dispersed and falls. When the oil comes into contact with the heat-conducting column, the heat-conducting column conducts the heat in the oil to the external environment, cooling the oil. The oil continuously accumulates on the sealing frame, squeezing the sealing frame to move downward. The sealing frame pulls the spring and moves downward along the guide rod until the sealing frame detaches from the sealing rod. The oil on the sealing frame falls onto the placement plate through the oil leakage hole. At this time, the cooled oil enters the isolation frame through the oil passage hole and continues to exchange heat with the surface of the transformer body.

[0021] Step 3, Air cooling: The oil under the plate exchanges heat with the heat exchange tubes, and outside air enters the heat exchange tubes through the vents, carrying away the heat from the heat exchange tubes and achieving air cooling.

[0022] Step 4, Stirring: During the rotation of the spline column in Step 2, the first belt assembly drives the two first stirring rods to rotate. The first stirring rods drive the second stirring rods to rotate via the second belt assembly. During the rotation of the first and second stirring rods, the stirring plates rotate, stirring the oil and accelerating the heat exchange rate between the oil and the transformer body.

[0023] This invention provides a novel electric furnace transformer and its method of use. It has the following beneficial effects:

[0024] (1) The present invention, through the cooperation of the first toothed plate, the rotating shaft, the slot, the long gear, the second toothed plate, the first limiting plate, the third toothed plate and the second limiting plate, after the transformer body comes into contact with the placement plate, uses the gravity of the transformer to drive the placement plate to descend, so that the first toothed plate drives the long gear to rotate, so that the second toothed plate and the third toothed plate move away from each other. The second toothed plate drives the first limiting plate to fit against one side of the transformer body, and the third toothed plate drives the second limiting plate to fit against the other side of the transformer body, thereby achieving stable limitation of the transformer body. No bolts are required, and it is more convenient to disassemble and assemble.

[0025] (2) This invention uses an isolation frame and a placement plate to separate the oil. The oil pump transports the oil that has been heated near the transformer body to the outside of the isolation frame. With the setting of the filter frame and heat conduction column, the heat dissipation of the oil after heat exchange is accelerated. With the setting of the sealing frame, the oil after heat exchange is retained. The heat conduction column dissipates the heat of the retained oil. With the cooperation of the spring, the sealing rod and the oil leakage hole, when the weight of the oil accumulated on the sealing frame is greater than the spring force of all the springs, the sealing frame begins to descend until it is separated from the sealing rod. The cooled oil falls down, realizing the cooling of the oil and providing a guarantee for the effective heat dissipation of the transformer body.

[0026] (3) The present invention uses a drive motor as a power source to drive the oil pump to work with the cooperation of spline column and spline cylinder, and pumps the oil inside the isolation frame to the top of the filter screen frame. With the setting of the first belt assembly and the second belt assembly, the rotation drive of the first stirring rod and the second stirring rod is realized. With the setting of the rotating stirring plate, the oil on the outside of the transformer body is stirred, the heat exchange speed between the transformer body and the oil is accelerated, and with the setting of the rotating stirring plate, it is convenient to assemble the tank cover and the placement box.

[0027] (4) The present invention uses heat exchange tubes and air holes to exchange heat with the oil at the bottom of the placement box, thereby further accelerating the dissipation rate of the oil.

[0028] (5) By directly immersing the transformer body in oil, the present invention effectively reduces the noise intensity emitted by the transformer body. Through the cooperation of the isolation frame and the placement plate, the placement box is divided into inner and outer storage spaces for oil storage, further achieving noise isolation and realizing effective noise isolation between the transformer body and the external environment. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0031] Figure 3 This is a top view of the internal structure of the present invention;

[0032] Figure 4 This is a schematic diagram of the sealing frame of the present invention;

[0033] Figure 5 This is a schematic diagram showing the connection of the heat exchange tube, guide rod, and placement box structure of the present invention;

[0034] Figure 6 This is a schematic diagram showing the connection between the spline column and the spline cylinder structure of the present invention;

[0035] In the diagram, 1. Placement box; 2. Transformer body; 3. Placement plate; 4. Isolation frame; 5. Rotating shaft; 6. Long gear; 7. First toothed plate; 8. Connecting plate; 9. Guide component; 10. Second toothed plate; 11. Third toothed plate; 12. First limiting plate; 13. Second limiting plate; 14. Oil pump; 15. Oil inlet pipe; 16. Oil outlet pipe; 17. Guide rod; 18. Filter screen frame; 19. Oil passage hole; 20. Sealing frame; 21. Through hole; 22. Spring; 23. Sealing rod; 24. Oil leakage hole; 25. Heat conduction column; 26. Tank cover; 27. Drive motor; 28. Splined column; 29. ​​Splined cylinder; 30. First stirring rod; 31. First belt assembly; 32. Second stirring rod; 33. Second belt assembly; 34. Stirring blade; 35. Heat exchange tube; 36. Vent. Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0037] Please see Figure 1-6 This invention provides a technical solution: a novel electric furnace transformer, comprising a placement box 1 and a transformer body 2 disposed inside the placement box 1. A placement plate 3 is slidably installed inside the placement box 1, and an isolation frame 4 is fixedly installed on the top of the placement plate 3. The transformer body 2 is fixedly installed on the top of the placement plate 3 and disposed inside the isolation frame 4. A rotating shaft 5 is rotatably connected between the front and rear sides of the inner cavity of the placement box 1. Two rotating shafts 5 are provided, and the two rotating shafts 5 are respectively disposed on the left and right sides of the transformer body 2. The top of the isolation frame 4 has a slot adapted to the rotating shaft 5. Long gears 6 are sleeved and fixedly connected to the front and rear sides of the outer surface of the rotating shaft 5. The front and rear sides of the top of the placement plate 3 and the... First toothed plates 7, which are adapted to the long gear 6, are fixedly connected to both the left and right sides of the transformer body 2. Connecting plates 8 are fixedly installed on the top of the placement plate 3 and on both the front and rear sides of the transformer body 2. A guide 9 is fixedly connected to the top of the connecting plate 8. A second toothed plate 10 and a third toothed plate 11 are sequentially and slidably connected through the right side of the guide 9 from top to bottom. The second toothed plates 10 and the third toothed plates 11 are used in conjunction with the long gear 6. A first limiting plate 12 is fixedly connected to the right end of the two second toothed plates 10. A second limiting plate 13 is fixedly connected to the left side of the two third toothed plates 11. The opposite side of the first limiting plate 12 and the second limiting plate 13 is in contact with the left and right sides of the transformer body 2.

[0038] As explained in detail, the combination of the isolation frame 4 and the placement plate 3 separates the placement box 1 into inner and outer storage spaces, providing convenient conditions for noise isolation.

[0039] As a preferred embodiment, in order to achieve effective heat dissipation of the transformer body 2, an oil pump 14 is fixedly connected to the top of the inner cavity of the isolation frame 4. The input end of the oil pump 14 is connected to an oil inlet pipe 15, the bottom end of the oil inlet pipe 15 extends to the top of the placement plate 3, and the output end of the oil pump 14 is connected to an oil outlet pipe 16. A guide rod 17 is fixedly connected to the bottom of the placement box 1. The top end of the guide rod 17 passes through the placement plate 3 and is fixedly connected to a filter screen frame 18. The outer surface of the filter screen frame 18 slides in contact with the inner surface of the placement box 1, and the inner surface of the filter screen frame 18 slides in contact with the outside of the isolation frame 4. One end of the oil outlet pipe 16 passes through the isolation frame 4 and extends to the top of the filter screen frame 18. Several oil passage holes 19 are opened on the top of the placement plate 3 and on both sides of the isolation frame 4. Several heat-conducting columns 25 are embedded and fixedly installed on the outer periphery of the placement box 1.

[0040] As a detailed explanation, the oil is separated by an isolation frame 4, in which the oil inside the isolation frame 4 exchanges heat with the surface of the transformer body 2. The oil after heat exchange is transported to the outside of the isolation frame 4 by the oil pump 14 and dissipated through the heat conduction column 25 to ensure that the oil in contact with the transformer body 2 has a low temperature.

[0041] As a preferred embodiment, a sealing frame 20 is slidably installed between the placement box 1 and the isolation frame 4. The sealing frame 20 is positioned between the filter screen frame 18 and the placement plate 3. The top of the sealing frame 20 has a through hole 21 that matches the guide rod 17. A spring 22 is fitted on the outer surface of the guide rod 17. The two ends of the spring 22 are fixedly connected to the opposite sides of the sealing frame 20 and the filter screen frame 18, respectively. A sealing rod 23 is fixedly connected to the bottom of the filter screen frame 18, and an oil leakage hole 24 that matches the sealing rod 23 is opened at the top of the sealing frame 20.

[0042] As a detailed explanation, the sealing frame 20 is elastically limited by the cooperation of spring 22 and sealing frame 20, which prolongs the residence time of the oil after heat exchange with the transformer body 2, ensuring the effective dissipation of oil temperature. With the cooperation of sealing rod 23 and oil leakage hole 24, the oil flows down automatically, ensuring the stable circulation of oil inside the placement box 1.

[0043] As a preferred embodiment, in order to provide driving force to the oil pump 14, a cover 26 is fixedly connected to the top of the housing 1, and a drive motor 27 is fixedly connected to the left side of the top of the cover 26. The drive motor 27 is electrically connected to an external power source and controlled by a control switch. The output end of the drive motor 27 passes through the cover 26 and is fixedly connected to a spline column 28. The drive end of the oil pump 14 is fixedly connected to a spline cylinder 29 that is compatible with the spline column 28.

[0044] As a preferred embodiment, in order to improve the uniformity of contact between the transformer body 2 and the oil, the front and rear sides of the bottom of the tank cover 26 are rotatably connected to the first stirring rod 30 via bearings. The first stirring rod 30 and the spline column 28 are connected by a first belt assembly 31. The right side of the bottom of the tank cover 26 is rotatably connected to the second stirring rod 32 via bearings. The second stirring rod 32 and the first stirring rod 30 are connected by a second belt assembly 33. The first belt assembly 31 and the second belt assembly 33 are both composed of pulleys and belts. The pulleys are respectively sleeved on the spline column 28, the first stirring rod 30 and the second stirring rod 32. Subsequently, the belt is used for transmission connection. The first stirring rod 30 and the second stirring rod 32 are both set between the isolation frame 4 and the transformer body 2, and the bottom sides of the first stirring rod 30 and the second stirring rod 32 are rotatably connected to stirring plates 34.

[0045] As a preferred embodiment, in order to further accelerate the cooling rate of the oil in the placement box 1, several heat exchange tubes 35 are fixedly connected between the left and right sides of the inner cavity of the placement box 1. The heat exchange tubes 35 are all located below the placement plate 3, and air holes 36 communicating with the heat exchange tubes 35 are opened on both the left and right sides of the placement box 1.

[0046] A method for using a new type of electric furnace transformer includes the following steps:

[0047] Step 1, Assembly: Remove the cover 26, pull up the placement plate 3, lift the transformer body 2 and bring it into contact with the placement plate 3, then slowly lower the transformer body 2 and the placement plate 3. When the transformer body 2 descends, it drives the placement plate 3 to move downward along the guide rod 17. The placement plate 3 drives the first toothed plate 7 to move downward. During the downward movement of the first toothed plate 7, it drives the long gear 6 to rotate. The two long gears 6 on the left drive the second toothed plate 10 to move to the left, so that the first limiting plate 12 fits against the right side of the transformer body 2. At the same time, the two long gears 6 on the right drive the third toothed plate 11 to move to the right, so that the second limiting plate 13 fits against the left side of the transformer body 2, thus completing the assembly.

[0048] Step 2, Cooling: Add oil to the placement box 1 until the oil level is below the slot opening. The heat generated by the transformer body 2 during operation exchanges heat with the oil. When the transformer body 2 is operating, start the drive motor 27. The drive motor 27 drives the spline column 28 to rotate, which in turn drives the spline cylinder 29 to rotate, driving the oil pump 14. The oil pump 14 draws the heat-exchanged oil from the placement plate 3 through the oil inlet pipe 15. The heat-exchanged oil is then sprayed onto the filter screen plate through the oil outlet pipe 16 for dispersion and fall. The oil contacts the conductive... When the heat column 25 is in operation, the heat conduction column 25 conducts the heat in the oil to the external environment to cool the oil. The oil continuously accumulates on the sealing frame 20, squeezing the sealing frame 20 to move downward. The sealing frame 20 pulls the spring 22 to move downward along the guide rod 17 until the sealing frame 20 is separated from the sealing rod 23. The oil on the sealing frame 20 falls onto the placement plate 3 through the oil leakage hole 24. At this time, the cooled oil enters the isolation frame 4 through the oil passage hole 19 and continues to exchange heat with the surface of the transformer body 2.

[0049] Step 3, air cooling: The oil under the placement plate 3 exchanges heat with the heat exchange tube 35, and the outside air enters the heat exchange tube 35 through the air hole 36, carrying away the heat of the heat exchange tube 35, thus achieving air cooling.

[0050] Step 4, Stirring: During the rotation of the spline column 28 in Step 2, the first belt assembly 31 drives the two first stirring rods 30 to rotate. The first stirring rods 30 drive the second stirring rods 32 to rotate through the second belt assembly 33. During the rotation of the first stirring rods 30 and the second stirring rods 32, the stirring blades 34 are driven to rotate, stirring the oil and accelerating the heat exchange rate between the oil and the transformer body 2.

Claims

1. A novel electric furnace transformer, comprising a placement box (1) and a transformer body (2) disposed inside the placement box (1), wherein... The features are as follows: a placement plate (3) is slidably installed inside the placement box (1), an isolation frame (4) is fixedly installed on the top of the placement plate (3), the transformer body (2) is fixedly installed on the top of the placement plate (3), and the transformer body (2) is located inside the isolation frame (4). A rotating shaft (5) is rotatably connected between the front and rear sides of the inner cavity of the placement box (1). There are two rotating shafts (5), and the two rotating shafts (5) are respectively located on the left and right sides of the transformer body (2). The top of the isolation frame (4) is provided with a slot that matches the rotating shaft (5). Long gears (6) are sleeved and fixedly connected on the front and rear sides of the outer surface of the rotating shaft (5). Long gears (6) are fixedly connected on the front and rear sides of the top of the placement plate (3) and on the left and right sides of the transformer body (2). A first toothed plate (7) is adapted to the wheel (6). A connecting plate (8) is fixedly installed on the top of the placement plate (3) and on both the front and rear sides of the transformer body (2). A guide (9) is fixedly connected to the top of the connecting plate (8). A second toothed plate (10) and a third toothed plate (11) are sequentially connected through and slidably connected to the right side of the guide (9) from top to bottom. The second toothed plate (10) and the third toothed plate (11) are used in conjunction with the long gear (6). A first limiting plate (12) is fixedly connected to the right end of the two second toothed plates (10). A second limiting plate (13) is fixedly connected to the left side of the two third toothed plates (11). The opposite side of the first limiting plate (12) and the second limiting plate (13) is in contact with the left and right sides of the transformer body (2). An oil pump (14) is fixedly connected to the top of the inner cavity of the isolation frame (4). The input end of the oil pump (14) is connected to an oil inlet pipe (15). The bottom end of the oil inlet pipe (15) extends to the top of the placement plate (3). The output end of the oil pump (14) is connected to an oil outlet pipe (16). A guide rod (17) is fixedly connected to the bottom of the placement box (1). The top end of the guide rod (17) passes through the placement plate (3) and is fixedly connected to a filter screen frame (18). The outer surface of the filter screen frame (18) slides in contact with the inner surface of the placement box (1). The inner surface of the filter screen frame (18) slides in contact with the outside of the isolation frame (4). One end of the oil outlet pipe (16) passes through the isolation frame (4) and extends to the top of the filter screen frame (18). Several oil passage holes (19) are opened on the top of the placement plate (3) and on both sides of the isolation frame (4). A sealing frame (20) is slidably installed between the placement box (1) and the isolation frame (4). The sealing frame (20) is located between the filter frame (18) and the placement plate (3). The top of the sealing frame (20) is provided with a through hole (21) that matches the guide rod (17). A spring (22) is sleeved on the outer surface of the guide rod (17). The two ends of the spring (22) are fixedly connected to the opposite side of the sealing frame (20) and the filter frame (18), respectively. A sealing rod (23) is fixedly connected to the bottom of the filter frame (18). An oil leakage hole (24) that matches the sealing rod (23) is provided on the top of the sealing frame (20). Several heat-conducting columns (25) are embedded and fixedly installed on the outer periphery of the placement box (1).

2. The novel electric furnace transformer according to claim 1, characterized in that: The top of the placement box (1) is fixedly connected to a box cover (26), and a drive motor (27) is fixedly connected to the left side of the top of the box cover (26). The output end of the drive motor (27) passes through the box cover (26) and is fixedly connected to a spline column (28). The drive end of the oil pump (14) is fixedly connected to a spline cylinder (29) that is compatible with the spline column (28).

3. A novel electric furnace transformer according to claim 2, characterized in that: The front and rear sides of the bottom of the box cover (26) are rotatably connected to the first stirring rod (30) via bearings. The first stirring rod (30) and the spline column (28) are connected by a first belt assembly (31). The right side of the bottom of the box cover (26) is rotatably connected to the second stirring rod (32) via bearings. The second stirring rod (32) and the first stirring rod (30) are connected by a second belt assembly (33).

4. A novel electric furnace transformer according to claim 3, characterized in that: The first stirring rod (30) and the second stirring rod (32) are both set between the isolation frame (4) and the transformer body (2), and stirring blades (34) are rotatably connected to both sides of the bottom of the first stirring rod (30) and the second stirring rod (32).

5. A novel electric furnace transformer according to claim 1, characterized in that: The left side of the inner cavity of the placement box (1) Several heat exchange tubes (35) are fixedly connected between the right and left sides. The heat exchange tubes (35) are all located below the placement plate (3). The left and right sides of the placement box (1) are provided with air holes (36) that communicate with the heat exchange tubes (35).

6. A method of using a novel electric furnace transformer, characterized in that: Specifically, the following steps are included: Step 1, Assembly: Remove the box cover (26), pull up the placement plate (3), lift the transformer body (2) and make it contact with the placement plate (3), then slowly lower the transformer body (2) and the placement plate (3). When the transformer body (2) descends, it drives the placement plate (3) to move downward along the guide rod (17). The placement plate (3) drives the first toothed plate (7) to move downward. During the downward movement of the first toothed plate (7), it drives the long gear (6) to rotate. The two long gears (6) set on the left drive the second toothed plate (10) to move to the left, so that the first limiting plate (12) fits against the right side of the transformer body (2). At the same time, the two long gears (6) set on the right drive the third toothed plate (11) to move to the right, so that the second limiting plate (13) fits against the left side of the transformer body (2). The assembly is completed. Step 2, Cooling: Add oil to the placement box (1) until the oil is below the slot opening. The heat generated by the transformer body (2) during operation exchanges heat with the oil. When the transformer body (2) is working, start the drive motor (27). The drive motor (27) drives the spline column (28) to rotate. The spline column (28) drives the spline cylinder (29) to rotate, driving the oil pump (14). The oil pump (14) draws the oil after heat exchange on the placement plate (3) through the oil inlet pipe (15). The oil after heat exchange is sprayed onto the filter plate through the oil outlet pipe (16) and dispersed and falls. The oil contacts the heat-conducting column. (25) When the heat-conducting column (25) conducts the heat in the oil to the external environment, the oil is cooled. The oil accumulates on the sealing frame (20), squeezing the sealing frame (20) to move downward. The sealing frame (20) pulls the spring (22) to move downward along the guide rod (17) until the sealing frame (20) is separated from the sealing rod (23). The oil on the sealing frame (20) falls onto the placement plate (3) through the oil leakage hole (24). At this time, the cooled oil enters the isolation frame (4) through the oil passage hole (19) and continues to exchange heat with the surface of the transformer body (2). Step 3, air cooling: The oil under the placement plate (3) exchanges heat with the heat exchange tube (35), and the outside air enters the heat exchange tube (35) through the air hole (36) to carry away the heat of the heat exchange tube (35) and achieve air cooling; Step 4, Stirring: During the rotation of the spline column (28) in Step 2, the first belt assembly (31) drives the two first stirring rods (30) to rotate. The first stirring rod (30) drives the second stirring rod (32) to rotate through the second belt assembly (33). During the rotation of the first stirring rod (30) and the second stirring rod (32), the stirring plate (34) is driven to rotate, which stirs the oil and accelerates the heat exchange rate between the oil and the transformer body (2).

Images