Electric converter with top heating function

Abstract

The invention relates to an electric converter with a top heating function, and relates to the technical field of electric converters, the electric converter comprises an electric converter shell, a sealing end cover and an electric converter bottom are arranged at the top and the bottom of the electric converter shell respectively, the electric converter bottom is movably connected with the electric converter shell, the sealing end cover is attached to the electric converter shell, and the sealing end cover is connected with the electric converter shell. The bottom of the sealing end cover and the inner side of the electric converter shell are fixedly connected with sealing tiles respectively, an end cover overturning support is further arranged on the sealing end cover, and the bottom of the end cover overturning support is movably connected with the electric converter shell. Firstly, a servo motor drives an external thread moving rod to rotate through transmission connection between a driving bevel gear and a driven bevel gear, and then through thread transmission between the external thread moving rod and an internal thread sleeve, a sealing tile and a positioning heat preservation tile at the bottom of a sealing end cover are separated from the inner side of an electric converter shell; and a sealing tile at the bottom is prevented from colliding with a sealing tile on the inner side of the electric converter shell when the sealing end cover moves.

Description

Technical Field

[0001] The invention relates to the technical field of electric converters, and in particular to an electric converter with a top heating function. Background Art

[0002] Electric converters are mainly used for steel smelting. Electric converters are a type of equipment that uses electricity as the main energy source for steelmaking. During the steelmaking process, it can melt raw materials such as pig iron or scrap steel at high temperatures, remove impurities, and adjust the chemical composition through a series of chemical reactions and physical processes to produce molten steel of different qualities and specifications.

[0003] At present, most electric converters can only heat metals by relying on the heating structures fixed on the bottom and inner wall, while there is no heating structure on the sealing cover. When heated, the metal will start to melt from the bottom. As the temperature increases and time passes, the top of the metal will finally melt. In addition, most electric converters have an opening on the top, so the heating efficiency of the top is slow, and it takes a long time to heat the metal to melt. Insulation bricks are generally installed on the sealed furnace cover, so the sealing cover needs to be opened and lifted vertically using lifting equipment. During this process, the refractory bricks on the furnace cover are prone to collision with the refractory bricks on the inside of the furnace body, causing damage or cracks in the refractory bricks, affecting the insulation effect. Summary of the invention

[0004] Technical issues to be solved

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, meet practical needs, and provide an electric converter with a top heating function to solve the above technical problems.

[0006] Technical Solution

[0007] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is:

[0008] An electric converter with a top heating function comprises an electric converter shell, wherein the top and bottom of the electric converter shell are respectively provided with a sealing end cover and an electric converter furnace bottom, wherein the electric converter furnace bottom is movably connected to the electric converter shell, the sealing end cover is fitted with the electric converter shell, the bottom of the sealing end cover and the inner side of the electric converter shell are respectively fixedly connected with sealing tiles, the sealing end cover is further provided with an end cover flip bracket, and the bottom of the end cover flip bracket is movably connected to the electric converter shell;

[0009] The end cover flip bracket includes a three-claw bracket, the sealing end cover is arranged at the inner bottom of the three-claw bracket, and the sealing end cover is fixedly connected with an inclined support corresponding to the three-claw bracket in a ring array, each of the inclined supports is movably connected with a limiting wheel, and a limiting groove corresponding to the limiting wheel is opened on the inner side of the three-claw bracket, and the limiting wheel is fitted on the inner side of the limiting groove;

[0010] The end of the three-claw bracket is movably connected to a fixed shaft seat, which is fixedly connected to the side of the electric converter shell. Electric cylinders are arranged on both sides of the three-claw bracket, and the electric cylinders are respectively located on both sides of the electric converter shell.

[0011] As a further technical solution of the present invention, the end of each electric cylinder is movably connected to a pin seat through a pin, and the pin seat is fixedly connected to both sides of the electric converter shell, and the other end of the electric cylinder is movably connected to the bottom two sides of the three-claw bracket through the shaft seat.

[0012] As a further technical solution of the present invention, the three-claw bracket is provided with a lifting drive, the lifting drive is movably connected to the three-claw bracket, and the bottom of the lifting drive is fixedly connected to the sealing end cover. The three-claw bracket is also fixedly connected to a servo motor that drives the lifting drive.

[0013] As a further technical solution of the present invention, since one end of the electric cylinder is movably connected to the electric converter shell through a pin shaft seat, and the other end is movably connected to the three-claw bracket, the output rod of the electric cylinder will push the three-claw bracket to move upward when it extends outward, and the end of the three-claw bracket is rotationally matched with the electric converter shell through a fixed shaft seat, so the three-claw bracket will flip upward, and the sealing end cover will be driven to flip at the same time through the lifting drive, so that the sealing end cover is separated from the upper part of the electric converter shell, realizing automatic flipping, and preventing the refractory bricks at the bottom of the sealing end cover from colliding with the refractory bricks in the electric converter shell during the flipping process.

[0014] As a further technical solution of the present invention, the lifting drive includes an internally threaded sleeve fixedly connected to the top of the sealing end cover, and the connection between the sealing end cover and the internally threaded sleeve is provided with reinforcing ribs in a ring array. The top of the internally threaded sleeve is threadedly connected to an externally threaded moving rod, and the top of the externally threaded moving rod is interference fit with a bearing, the outer ring of the bearing is interference fit with the three-claw bracket, and the top of the externally threaded moving rod passes through the three-claw bracket and extends to the top of the three-claw bracket.

[0015] As a further technical solution of the present invention, a driven bevel gear is provided at one end of the externally threaded moving rod away from the internally threaded sleeve, the servo motor is located on one side of the driven bevel gear, and the end of the servo motor is fixedly connected to a driving bevel gear that cooperates with the driven bevel gear.

[0016] As a further technical solution of the present invention, the servo motor drives the external threaded moving rod to rotate through the transmission connection between the active bevel gear and the driven bevel gear, and then drives the sealing end cover to move up and down through the threaded transmission between the external threaded moving rod and the internal threaded sleeve, thereby ensuring the sealing effect between the sealing end cover and the outer shell of the electric converter, and when the sealing end cover is driven to rise, the refractory bricks at the bottom of the sealing end cover can be separated from the refractory bricks on the inner side of the outer shell of the electric converter, thereby preventing collision when the sealing end cover is flipped over.

[0017] As a further technical solution of the present invention, the bottom of the electric converter includes an insulation furnace chassis horizontally arranged with the bottom of the electric converter shell, the bottom of the insulation furnace chassis is integrally provided with reinforcing ribs, and the reinforcing ribs are arranged in a ring array, and a support ring is welded at the bottom of the reinforcing ribs, and the top of the insulation furnace chassis is respectively fixedly connected with positioning insulation tiles and fan-shaped support plates.

[0018] As a further technical solution of the present invention, the positioning insulation tiles are located between the insulation furnace bottom plate and the fan-shaped support plate. The positioning insulation tiles and the fan-shaped support plate are respectively arranged in a circular array. The positioning insulation tiles are provided with U-shaped grooves for placing heating tubes in a rectangular array.

[0019] As a further technical solution of the present invention, there are two groups of positioning insulation tiles, which are symmetrically arranged, one group is connected to the bottom plate of the insulation furnace, and the other group is fixedly connected to the sealing tiles at the bottom of the sealing end cover, and the bottom of the sealing end cover is provided with a locking bracket for fixing the positioning insulation tiles.

[0020] As a further technical solution of the present invention, the locking bracket includes a hollow plate attached to the bottom of the positioning insulation tile, and a threaded locking column is threadedly connected to the center position of the hollow plate. The top of the threaded locking column passes through the positioning insulation tile and the sealing tile and is fixedly connected to the sealing end cover.

[0021] (3) Beneficial effects:

[0022] A. In the present invention, first, the servo motor drives the external thread moving rod to rotate through the transmission connection between the active bevel gear and the driven bevel gear, and then through the thread transmission between the external thread moving rod and the internal thread sleeve, the rotating external thread moving rod drives the internal thread sleeve to rise, so that the sealing tile and the positioning insulation tile at the bottom of the sealing end cover are separated from the inner side of the electric converter shell, preventing the sealing tile at the bottom of the sealing end cover from colliding with the sealing tile on the inner side of the electric converter shell when the sealing end cover is turned over, thereby reducing the damage rate of the sealing tile and extending the service life of the sealing tile;

[0023] B. In the present invention, when the lifting driver drives the sealing end cover to rise, the inclined support at the end of the sealing end cover will drive the limiting wheel to rise together, and the limiting wheel rolls on the inner side of the limiting groove to limit the sealing end cover, so that the sealing end cover can be lifted vertically on the inner side of the three-claw bracket, preventing the sealing end cover from rotating with the rotation of the external thread moving rod, and ensuring that the sealing end cover moves more smoothly, preventing the sealing end cover from shaking when moving, and further preventing the sealing tiles that fit each other from colliding;

[0024] C. In the present invention, the two groups of positioning insulation tiles are respectively fixed on the bottom of the sealing end cover and the top of the insulation furnace bottom plate, and the positioning insulation tiles are also provided with a U-shaped groove for placing the heating tube, which can realize the heating of the electric heating furnace in the up and down directions, so that both ends of the metal are heated at the same time, the uniformity of heating is improved, and the melting efficiency of the metal is improved. The hollow disk can be rotated and the hollow disk can be removed through the threaded cooperation between the hollow disk and the threaded locking column, which is convenient for disassembling the positioning insulation tile under the sealing end cover, and then it is convenient for the staff to replace the heating tube placed in the positioning insulation tile, thereby reducing the use cost;

[0025] D. In the present invention, since the two ends of the electric cylinder are movably connected to the electric converter shell and the three-claw bracket respectively, when the output rod of the electric cylinder extends outward, it will push the three-claw bracket to move, and the end of the three-claw bracket is rotatably connected to the electric converter shell through the fixed shaft seat, so the three-claw bracket can only be turned over with the pin shaft in the fixed shaft seat as the axis, thereby driving the sealing end cover to separate from the top of the electric converter shell and then turn over, which is convenient for taking and placing the workpiece;

[0026] E. In the present invention, the thickened seat and the turntable wheel support the insulation furnace chassis, and when the insulation furnace chassis rotates, the friction between the support ring and the turntable wheel causes the turntable wheel to rotate in the triangular plate, thereby supporting the insulation furnace chassis without affecting the normal rotation of the insulation furnace chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 Another perspective of the picture;

[0029] Figure 3 For the present invention Figure 1 Schematic diagram of the bottom structure;

[0030] Figure 4 For the present invention Figure 1 Right view of;

[0031] Figure 5 For the present invention Figure 1 The main view of

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of the end cover flip bracket in the present invention;

[0033] Figure 7 For the present invention Figure 6 A partial enlarged schematic diagram of

[0034] Figure 8 For the present invention Figure 6 Schematic diagram of the bottom structure;

[0035] Fig. 9 For the present invention Figure 8 A partial enlarged schematic diagram of

[0036] Fig.10 It is a three-dimensional structural schematic diagram of the lifting actuator in the present invention;

[0037] Fig.11 It is a schematic diagram of the structural connection between the bottom of the electric converter and the rotary driver in the present invention;

[0038] Fig.12 For the present invention Fig.11 Schematic diagram of the three-dimensional structure;

[0039] Fig.13 For the present invention Fig.12 A partial enlarged schematic diagram of

[0040] Fig.14 It is a schematic diagram of the three-dimensional structure of the positioning insulation tile in the present invention;

[0041] Fig.15 It is a schematic diagram of the three-dimensional structure of the fan-shaped support sheet in the present invention;

[0042] Fig.16 For the present invention Fig.15 A partial enlarged schematic diagram of

[0043] Fig.17 It is a schematic diagram of the three-dimensional structure of the locking bracket in the present invention;

[0044] Fig.18 It is a schematic diagram of the bottom structure of the sealing end cover in the present invention;

[0045] Fig.19 It is a schematic diagram of the three-dimensional structure of the supporting roller in the present invention;

[0046] Fig. 20 It is a three-dimensional structural schematic diagram of the rotary driver in the present invention;

[0047] Fig.21 For the present invention Fig. 20 Schematic diagram of the bottom structure.

[0048] In the figure: support seat-1, electric converter shell-2, sealing end cover-3, end cover flip bracket-4, three-claw bracket-41, fixed shaft seat-42, electric cylinder-43, pin shaft seat-44, tilting support-45, limiting wheel-46, limiting groove-47, lifting drive-5, internal thread sleeve-51, external thread moving rod-52, driven bevel gear-53, servo motor-6, active bevel gear-61, electric converter bottom-7, insulation furnace chassis-71, reinforcing rib plate-72, support ring -73, positioning insulation tile -74, U-shaped groove -741, fan-shaped support plate -75, extension plate -751, arc groove -752, rotary drive -8, sleeve seat -81, connecting shaft -82, pulley -83, transmission belt -84, drive motor -85, support roller -9, thickened seat -91, turntable wheel -92, triangle plate -93, U-shaped groove -94, support shaft -95, sealing tile -10, locking bracket -11, hollow disk -111, threaded locking column -112. DETAILED DESCRIPTION

[0049] See also Figure 1-9 , an electric converter with a top heating function, comprising an electric converter shell 2, the top and bottom of the electric converter shell 2 are respectively provided with a sealing end cover 3 and an electric converter furnace bottom 7, wherein the electric converter furnace bottom 7 is movably connected to the electric converter shell 2, the sealing end cover 3 is fitted with the electric converter shell 2, the bottom of the sealing end cover 3 and the inner side of the electric converter shell 2 are respectively fixedly connected with sealing tiles 10, the sealing end cover 3 is also provided with an end cover flip bracket 4, and the bottom of the end cover flip bracket 4 is movably connected to the electric converter shell 2;

[0050] The end cover flip bracket 4 includes a three-claw bracket 41, the sealing end cover 3 is arranged at the inner bottom of the three-claw bracket 41, and the sealing end cover 3 is fixedly connected with an inclined support 45 corresponding to the three-claw bracket 41 in a ring array, and each of the inclined supports 45 is movably connected with a limiting wheel 46, which plays a stabilizing role when the sealing end cover 3 moves through the rolling of the limiting wheel 46. The inner side of the three-claw bracket 41 is provided with a limiting groove 47 corresponding to the limiting wheel 46, and the limiting wheel 46 is attached to the inner side of the limiting groove 47 to prevent the sealing end cover 3 from rotating and ensure the vertical movement of the sealing end cover 3;

[0051] The end of the three-claw bracket 41 is movably connected to a fixed shaft seat 42, and the fixed shaft seat 42 is fixedly connected to the side of the electric converter housing 2. Electric cylinders 43 are provided on both sides of the three-claw bracket 41. The electric cylinders 43 are respectively located on both sides of the electric converter housing 2. The three-claw bracket 41 is driven to rotate by the output rod of the electric cylinder 43 to realize automatic opening and closing of the sealing end cover 3, and the opening and closing of the sealing end cover 3 is more stable.

[0052] In this embodiment, the end of each electric cylinder 43 is movably connected to a pin seat 44 through a pin, and the pin seat 44 is fixedly connected to both sides of the electric converter housing 2, and the other end of the electric cylinder 43 is movably connected to both sides of the bottom of the three-claw bracket 41 through a shaft seat.

[0053] In this embodiment, the three-claw bracket 41 is provided with a lifting driver 5, the lifting driver 5 is movably connected to the three-claw bracket 41, and the bottom of the lifting driver 5 is fixedly connected to the sealing end cover 3. The three-claw bracket 41 is also fixedly connected to a servo motor 6 that drives the lifting driver 5.

[0054] By adopting the above technical solution, since one end of the electric cylinder 43 is movably connected to the electric converter shell 2 through the pin shaft seat 44, and the other end is movably connected to the three-claw bracket 41, the output rod of the electric cylinder 43 will push the three-claw bracket 41 to move upward when it extends outward, and the end of the three-claw bracket 41 is rotationally matched with the electric converter shell 2 through the fixed shaft seat 42, so the three-claw bracket 41 will flip upward, and the sealing end cover 3 will be driven to flip at the same time through the lifting drive 5, so that the sealing end cover 3 is separated from the upper part of the electric converter shell 2, realizing automatic flipping, and preventing the refractory bricks at the bottom of the sealing end cover 3 from colliding with the refractory bricks in the electric converter shell 2 during the flipping process.

[0055] In this embodiment, please refer to Fig.10 The lifting drive 5 includes an internally threaded sleeve 51 fixedly connected to the top of the sealing end cover 3. The connection between the sealing end cover 3 and the internally threaded sleeve 51 is provided with reinforcing ribs in a ring array. The top of the internally threaded sleeve 51 is threadedly connected to an externally threaded moving rod 52, and the top of the externally threaded moving rod 52 is interference fit with a bearing. The outer ring of the bearing is interference fit with the three-claw bracket 41. The top of the externally threaded moving rod 52 passes through the three-claw bracket 41 and extends to the top of the three-claw bracket 41.

[0056] In this embodiment, a driven bevel gear 53 is provided at one end of the externally threaded moving rod 52 away from the internally threaded sleeve 51, the servo motor 6 is located on one side of the driven bevel gear 53, and the end of the servo motor 6 is fixedly connected to a driving bevel gear 61 that cooperates with the driven bevel gear 53 in transmission.

[0057] By adopting the above technical solution, the servo motor 6 drives the external threaded moving rod 52 to rotate through the transmission connection between the active bevel gear 61 and the driven bevel gear 53, and then drives the sealing end cover 3 to move up and down through the threaded transmission between the external threaded moving rod 52 and the internal threaded sleeve 51, thereby ensuring the sealing effect between the sealing end cover 3 and the electric converter shell 2, and when driving the sealing end cover 3 to rise, the refractory bricks at the bottom of the sealing end cover 3 can be separated from the refractory bricks on the inner side of the electric converter shell 2, thereby preventing the sealing end cover 3 from colliding when it is turned over.

[0058] In this embodiment, please refer to Figure 11-16 The electric converter bottom 7 includes an insulation furnace chassis 71 horizontally arranged with the bottom of the electric converter shell 2. The bottom of the insulation furnace chassis 71 is integrally provided with reinforcing ribs 72, and the reinforcing ribs are arranged in a ring array. A support ring 73 is welded to the bottom of the reinforcing ribs. The top of the insulation furnace chassis 71 is respectively fixedly connected with a positioning insulation tile 74 and a fan-shaped support sheet 75.

[0059] In this embodiment, the positioning insulation tile 74 is located between the insulation furnace bottom plate 71 and the fan-shaped support plate 75. The positioning insulation tile 74 and the fan-shaped support plate 75 are respectively arranged in a circular array. The positioning insulation tile 74 is provided with a rectangular array of U-shaped grooves 741 for placing the heating tubes.

[0060] In this embodiment, there are two groups of positioning insulation tiles 7, and the two groups of positioning insulation tiles 7 are symmetrically arranged, one group is connected to the insulation furnace chassis 71, and the other group is fixedly connected to the sealing tiles 10 at the bottom of the sealing end cover 3. The bottom of the sealing end cover 3 is provided with a locking bracket 11 for fixing the positioning insulation tiles 7.

[0061] In this embodiment, please refer to Figure 17-18 The locking bracket 11 includes a hollow plate 111 attached to the bottom of the positioning insulation tile 7, and a threaded locking column 112 is threadedly connected to the center position of the hollow plate 111. The top of the threaded locking column 112 passes through the positioning insulation tile 7 and the sealing tile 10 and is fixedly connected to the sealing end cover.

[0062] By adopting the above technical solution, the sealing tile 10 is fixed to the bottom of the sealing end cover 3 by bolts, and the sealing tile 10 is arranged in a ring array around the threaded locking column 112, and then the positioning insulation tile 74 is placed on the bottom of the sealing tile 10, and then the hollow disk 111 is placed on the bottom of the positioning insulation tile 74, and then the hollow disk 111 is rotated, and the threaded cooperation between the hollow disk 111 and the threaded locking column 112 is used to move the hollow disk 111 upward until the hollow disk 111 is attached to the bottom of the positioning insulation tile 74, so as to facilitate the disassembly of the positioning insulation tile 74, thereby replacing the heating tube placed inside the positioning insulation tile 74.

[0063] In this embodiment, a support base 1 is fixedly connected to the bottom of the electric converter shell 2. The support base 1 is provided with support rollers 9 for supporting the electric converter bottom 7. A rotary driver 8 for providing power is also provided below the electric converter bottom 7.

[0064] In this embodiment, please refer to Fig.19The supporting roller 9 includes a thickened seat 91, and a triangular plate 93 is symmetrically welded on the top of the thickened seat 91. A U-shaped groove 94 is opened on the top of each triangular plate 93. A turntable wheel 92 is provided between the two triangular plates 93. Support shafts 95 are integrally provided on both sides of the turntable wheel 92, and the support shafts 95 are movably connected in the U-shaped grooves 94.

[0065] In this embodiment, the thickened seat 91 is fixedly connected to the support seat 1 by bolts. The thickened seat 91 is distributed in a ring array at the bottom of the electric converter bottom 7, and the top of the turntable wheel 92 fits with the bottom of the support ring 73.

[0066] By adopting the above technical solution, first, the insulation furnace chassis 71 drives the top positioning insulation tile 74 and the fan-shaped support plate 75 to rotate at the inner bottom of the electric converter shell 2. At this time, the reinforcing ribs 72 and the support ring 73 rotate with the bottom of the insulation furnace chassis 71. While the support roller 9 supports the insulation furnace chassis 71, the turntable wheel 92 will roll in the U-shaped groove 94 following the rotation of the support ring 73 to ensure the normal rotation of the electric converter bottom 7.

[0067] In this embodiment, please refer to Figure 20-21 The rotary driver 8 includes a sleeve seat 81, which is bolted to the center of the support seat 1. A connecting shaft 82 is movably connected in the sleeve seat 81, and a bearing is provided between the connecting shaft 82 and the sleeve seat 81. The outer ring of the bearing is interference fit with the sleeve seat 81, and the inner ring of the bearing is interference fit with the connecting shaft 82. The end of the connecting shaft 82 passes through the sleeve seat 81 and extends to the bottom of the support seat 1.

[0068] In this embodiment, a drive motor 85 is provided on the side of the sleeve seat 81, and the drive motor 85 is bolted to the support seat 1, and the end of the drive motor 85 passes through the support seat 1, and the end of the drive motor 85 and the end of the connecting shaft 82 are respectively fixedly connected with a pulley 83, and the outer side of the pulley 83 is sleeved with a transmission belt 84.

[0069] By adopting the above technical solution, the driving motor 8 drives the connecting shaft 82 to rotate on the inner side of the sleeve seat 81 through the transmission connection between the pulley 83 and the transmission belt 84, and the connecting shaft 82 drives the bottom 7 of the electric converter to rotate at the bottom of the inner side of the electric converter shell 2, so that the metal rotates on the inner side of the electric converter shell 2, thereby improving the heating efficiency.

[0070] In this embodiment, the sealing tiles 10 in the electric converter shell 2 and the sealing end cover 3 are respectively arranged in a ring shape, and the sealing tiles 10 at the bottom of the sealing end cover 3 are fitted with the sealing tiles 10 in the electric converter shell 2. The sealing tiles 10 on the inner side of the electric converter shell 2 are built in a circular ring shape, which can have a heat preservation effect. The sealing tiles 10 in the sealing end cover 3 are fitted with the sealing tiles 10 in the electric converter shell 2 to form a heat-insulating cavity to reduce heat leakage.

[0071] In this embodiment, the driving bevel gear 61 and the driven bevel gear 53 are meshed with each other, and the driven bevel gear 53 is located at the top of the three-claw bracket 41. The servo motor 6 drives the external threaded moving rod 52 to rotate through the transmission connection between the driving bevel gear 61 and the driven bevel gear 53.

[0072] In this embodiment, a support frame is integrally provided at the bottom of the support base 1, and the pulley 83 and the transmission belt 84 are respectively located on the inner side of the support frame, and the pulley 83 and the transmission belt 84 can rotate on the inner side of the support frame.

[0073] The fan-shaped support piece 75 is provided with a concave groove and an extension plate 751 on both sides respectively. The cross section of the fan-shaped support piece 75 is symmetrically provided with an arc groove 752. The extension plates 751 on the side of the fan-shaped support piece 75 are inserted into the concave grooves on the side of the fan-shaped support piece 75 at adjacent positions.

[0074] By adopting the above technical solution, the sealing end cover 3 is first opened, and the servo motor 6 first drives the external thread moving rod 52 to rotate through the transmission connection between the active bevel gear 6 and the driven bevel gear 53, and then through the threaded connection between the external thread moving rod 52 and the internal threaded sleeve 51, the external thread moving rod 52 drives the sealing end cover 3 to move upward through the internal threaded sleeve 51 when rotating. While the sealing end cover 3 is moving, the sealing end cover 3 drives the top inclined support 45 to rise, and the limiting wheel 46 rolls on the inner side of the limiting groove 47 to guide the sealing end cover 3 when it moves, so that the sealing end cover 3 is vertically moved. It rises straight up, and makes the sealing end cover 3 more stable when moving, and prevents the sealing end cover 3 from shaking when moving, until the sealing shoe 10 at the bottom of the sealing end cover 3 is separated from the sealing shoe 10 on the inner side of the electric converter shell, and then the output rod of the electric cylinder 43 extends outward. Since one end of the electric cylinder 43 is movably connected to the electric converter shell 2 through the pin shaft seat 44, the other end of the electric cylinder 43 is movably connected to the two ends of the three-claw bracket 41 through the shaft seat, and the end of the three-claw bracket 41 is rotatably connected to the electric converter shell 2 through the fixed shaft seat 42, therefore, the output rod of the electric cylinder 43 pushes the three-claw bracket 41 to flip;

[0075] The workpiece to be heated is placed on the bottom 7 of the electric converter furnace at the bottom of the electric converter shell 2, and the metal is located on the fan-shaped support sheet 75 on the top of the insulation furnace bottom plate 71, and then the sealing end cover 3 is re-placed on the top of the electric converter shell 2 through the end cover flip bracket 4, and the lifting drive 5 pushes the sealing tile 10 at the bottom of the sealing end cover 3 to re-fit into the sealing tile 10 on the inner side of the electric converter shell 2, and then the positioning insulation tile 74 at the bottom of the sealing end cover 3 and the positioning insulation tile 74 at the top of the insulation furnace bottom plate 71 are both placed with heating tubes, which can heat the top and bottom of the workpiece at the same time, thereby improving the heating efficiency;

[0076] The driving motor 85 drives the connecting shaft 82 to rotate inside the shaft sleeve seat 81 through the transmission cooperation between the pulley 83 and the transmission belt 84. The top of the connecting shaft 82 drives the insulation furnace chassis 71 to rotate, and the positioning insulation tile 74 and the fan-shaped support sheet 75 on the top of the insulation furnace chassis 71 rotate inside the electric converter shell 2 at the same time, thereby driving the metal inside the electric converter shell 2 to rotate, thereby improving the heating efficiency of the metal.

[0077] The hollow disk 111 is rotated, and due to the threaded cooperation between the hollow disk 111 and the threaded locking column 112, the hollow disk 111 moves toward the side away from the positioning insulation tile 74, which makes it convenient for the staff to disassemble the positioning insulation tile 74 and replace the heating tube inside the positioning insulation tile 74.

[0078] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An electric converter with top heating function, characterized in that: The invention comprises an electric converter shell (2), wherein the top and bottom of the electric converter shell (2) are respectively provided with a sealing end cover (3) and an electric converter furnace bottom (7), wherein the electric converter furnace bottom (7) is movably connected to the electric converter shell (2), the sealing end cover (3) is fitted with the electric converter shell (2), the bottom of the sealing end cover (3) and the inner side of the electric converter shell (2) are respectively fixedly connected with sealing tiles (10), the sealing end cover (3) is also provided with an end cover flip bracket (4), and the bottom of the end cover flip bracket (4) is movably connected to the electric converter shell (2); The end cover flip bracket (4) comprises a three-claw bracket (41), the sealing end cover (3) is arranged at the inner bottom of the three-claw bracket (41), and the sealing end cover (3) is fixedly connected with an inclined support (45) corresponding to the three-claw bracket (41) in a ring array, each of the inclined supports (45) is movably connected with a limiting wheel (46), and the inner side of the three-claw bracket (41) is provided with a limiting groove (47) corresponding to the limiting wheel (46), and the limiting wheel (46) is fitted on the inner side of the limiting groove (47); The end of the three-claw bracket (41) is movably connected to a fixed shaft seat (42), and the fixed shaft seat (42) is fixedly connected to the side of the electric converter shell (2). Electric cylinders (43) are provided on both sides of the three-claw bracket (41), and the electric cylinders (43) are respectively located on both sides of the electric converter shell (2).

2. The electric converter with top heating function as claimed in claim 1, characterized in that: The end of each electric cylinder (43) is movably connected to a pin shaft seat (44) via a pin shaft, and the pin shaft seat (44) is fixedly connected to both sides of the electric converter shell (2), and the other end of the electric cylinder (43) is movably connected to both sides of the bottom of the three-claw bracket (41) via a shaft seat.

3. The electric converter with top heating function as claimed in claim 2, characterized in that: The three-claw bracket (41) is provided with a lifting driver (5), the lifting driver (5) is movably connected to the three-claw bracket (41), and the bottom of the lifting driver (5) is fixedly connected to the sealing end cover (3), and the three-claw bracket (41) is also fixedly connected to a servo motor (6) for driving the lifting driver (5).

4. The electric converter with top heating function as claimed in claim 3, characterized in that: The lifting drive (5) comprises an internally threaded sleeve (51) fixedly connected to the top of the sealing end cover (3); a reinforcing rib is provided in a ring array at the connection between the sealing end cover (3) and the internally threaded sleeve (51); the top of the internally threaded sleeve (51) is threadedly connected to an externally threaded moving rod (52); and the top of the externally threaded moving rod (52) is interference-fitted with a bearing; the outer ring of the bearing is interference-fitted with the three-claw bracket (41); the top of the externally threaded moving rod (52) passes through the three-claw bracket (41) and extends to the top of the three-claw bracket (41).

5. The electric converter with top heating function as claimed in claim 4, characterized in that: A driven bevel gear (53) is provided at one end of the externally threaded moving rod (52) away from the internally threaded sleeve (51), the servo motor (6) is located on one side of the driven bevel gear (53), and the end of the servo motor (6) is fixedly connected to a driving bevel gear (61) that is in transmission cooperation with the driven bevel gear (53).

6. The electric converter with top heating function as claimed in claim 1, characterized in that: The electric converter furnace bottom (7) comprises an insulating furnace chassis (71) horizontally arranged with the bottom of the electric converter shell (2); the bottom of the insulating furnace chassis (71) is integrally provided with reinforcing ribs (72), and the reinforcing ribs are arranged in a ring array; a supporting ring (73) is welded to the bottom of the reinforcing ribs; and the top of the insulating furnace chassis (71) is respectively fixedly connected with a positioning insulating tile (74) and a fan-shaped supporting sheet (75).

7. The electric converter with top heating function as claimed in claim 6, characterized in that: The positioning insulation tile (74) is located between the insulation furnace bottom plate (71) and the fan-shaped support sheet (75). The positioning insulation tile (74) and the fan-shaped support sheet (75) are respectively arranged in a ring array. The positioning insulation tile (74) is provided with a U-shaped groove (741) for placing the heating pipe in a rectangular array.

8. The electric converter with top heating function as claimed in claim 6, characterized in that: The positioning insulation tiles (7) are provided in two groups, and the two groups of positioning insulation tiles (7) are symmetrically arranged, one group is connected to the insulation furnace bottom plate (71), and the other group is fixedly connected to the sealing tiles (10) at the bottom of the sealing end cover (3), and the bottom of the sealing end cover (3) is provided with a locking bracket (11) for fixing the positioning insulation tiles (7).

9. The electric converter with top heating function as claimed in claim 8, characterized in that: The locking bracket (11) comprises a hollow plate (111) attached to the bottom of the positioning insulation tile (7), a threaded locking column (112) is threadedly connected to the center of the hollow plate (111), and the top of the threaded locking column (112) passes through the positioning insulation tile (7) and the sealing tile (10) and is fixedly connected to the sealing end cover.

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