A single-sided output roller electromagnetic stirrer

Abstract

This utility model relates to the field of continuous casting technology in metal smelting, specifically disclosing a single-sided output roller electromagnetic stirrer, including a roller sleeve, roller end shaft, iron core assembly, bearing seat, end cover, cooling water chamber assembly, terminal plate assembly, junction box assembly, and return water assembly, as well as components such as O-rings, springs, self-aligning roller bearings, skeleton oil seals, and mechanical seals. This device employs a design where all four leads of the two electromagnetic sintering wires are led out from one end of the roller electromagnetic stirrer, eliminating the need for complex cooling water chamber, terminal plate, and junction box assemblies at the output end. This reduces manufacturing costs and makes connecting high-temperature cables more convenient in the compact environment of a continuous casting machine, significantly improving installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of continuous casting technology in metal smelting, and more specifically, to a single-sided output roller electromagnetic stirrer. Background Technology

[0002] The working principle of electromagnetic stirrers is as follows: under the action of an external frequency converter, an electromagnetic coil wound on an iron core assembly generates a traveling wave magnetic field (Ampere's law, magnetism arises from electricity). Taking the molten steel inside the billet as the object of study, since the molten steel, as a conductor, cuts the magnetic field lines of the traveling wave magnetic field and thus becomes a current-carrying conductor, the moving traveling wave magnetic field generates eddy currents in the volume element of the molten steel in the billet (right-hand rule, electricity arises from motion). The magnetic field generates a Lorentz force on the eddy currents (left-hand rule, force arises from electricity), which is an electromagnetic force. The electromagnetic force acts on the volume element of the molten steel, promoting the flow of the molten steel, thereby stirring the molten steel in the core of the billet. This, in turn, controls the refinement of the billet grains, increases the equiaxed grain ratio, improves central segregation, and improves central porosity and other metallurgical defects during the solidification process, ultimately achieving the goal of improving the quality of the billet.

[0003] Because traditional continuous casting machines did not consider the installation requirements of roller electromagnetic stirrers, installing them later is extremely troublesome. It generally requires significant modifications to the fan-shaped section. Some fan-shaped sections in continuous casting machines have no reuse value and may even require redesign and fabrication of entirely new sections, undoubtedly placing a huge financial burden on the owner. Continuous casting machines are generally very compact in structure; the larger the space occupied by the roller electromagnetic stirrer, the greater the workload for modifying the fan-shaped section. Therefore, during the design phase, the structure of the roller electromagnetic stirrer should be as small and compact as possible, occupying as little space as possible. Furthermore, the flow spacing in multi-strand continuous casting machines is very small, and the flow spacing must also allow for pedestrian access for maintenance; therefore, the obstruction of pedestrian access by the roller electromagnetic stirrer should be minimized.

[0004] Given the above background, traditional roller electromagnetic stirrers all face the aforementioned drawbacks. Therefore, a roller electromagnetic stirrer with a single-sided output is proposed, which can reduce the amount of work required to modify the fan-shaped section; and only one end of the output line needs to be connected between two adjacent streams, which can also greatly improve on-site work efficiency. Utility Model Content

[0005] In view of the above-mentioned technical problems in related technologies, this utility model provides a single-sided output roller electromagnetic stirrer, which can solve the above problems.

[0006] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows: A single-sided output roller-type electromagnetic stirrer includes an iron core assembly. The iron core assembly includes an iron core shaft head, an iron core plug, an iron core lamination, an iron core body, and an electromagnetic coil. The iron core lamination is fixedly installed inside the iron core body. The iron core shaft head is welded and fixed to both ends of the iron core body. The electromagnetic coil includes two electromagnetic sintered wires, namely a V-phase electromagnetic sintered wire and a U-phase electromagnetic sintered wire. The V-phase electromagnetic sintered wire has a first coil, a third coil, and a fifth coil wound on the surface of the iron core assembly. The U-phase electromagnetic sintered wire has a second coil and a fourth coil wound on the surface of the iron core assembly. The winding directions of the first coil, the second coil, the third coil, the fourth coil, and the fifth coil are clockwise, clockwise, counterclockwise, counterclockwise, and clockwise, respectively. The iron core assembly is installed inside the roller sleeve. A roller end shaft is bolted to the outlet end of the roller sleeve. The other end of the roller sleeve is integrated with the roller end shaft, with the end portion having the same external dimensions as the roller end shaft. A self-aligning roller bearing is fitted onto the outside of the roller end shaft, housed within a bearing housing. An end cover is located on the outside of the bearing housing, containing a mechanical seal, spring, and O-ring. A cooling water chamber assembly is bolted to one side of the end cover and then bolted to the top of the terminal block assembly. The terminal block assembly includes a terminal block, waterproof terminal plugs, wiring screws, bolt fasteners, and wiring lugs. The terminal waterproof plug is fixedly installed on the sub-board. The terminal waterproof plug is threadedly connected to the wiring screw. The bottom of the wiring screw is fastened to the wiring lug by bolt fasteners. The terminal board assembly is fixed to the top of the junction box assembly by bolts. The output ends of the V-phase electromagnetic sintered wire and the U-phase electromagnetic sintered wire both pass out from the iron core shaft head on one side of the iron core assembly. The iron core shaft head has two oblique groove notches for electromagnetic sintered wire and water flow channel. The output ends of the V-phase electromagnetic sintered wire and the U-phase electromagnetic sintered wire pass through the iron core shaft head and the interior of the cooling water chamber assembly in sequence, and the output ends are connected to the wiring screw of the terminal board assembly. The wiring lug is electrically connected to the external frequency converter power supply through wires.

[0007] Furthermore, the cooling water chamber assembly includes an upper flange, a cooling water chamber cylinder, a lower flange, an elbow, and a water pipe. An elbow is installed externally to the cooling water chamber cylinder, and a water pipe is installed through the elbow. An upper flange is provided at the inlet end of the cooling water chamber cylinder, and the upper flange is fastened to the end cover. A lower flange is fixedly installed at the bottom of the cooling water chamber cylinder, and the lower flange is fastened to the terminal plate.

[0008] Furthermore, the junction box assembly includes a box frame, a junction box flange, a junction box side plate, a junction box top plate, a junction box cover, a high-temperature cable waterproof plug, and a blower connector. The junction box side plate, junction box top plate, and junction box cover are fastened to the box frame via the junction box flange, and the high-temperature cable waterproof plug and blower connector are fixed to the surface of the junction box cover.

[0009] Furthermore, a water return assembly is fixedly installed on the outside of the end cap on the side opposite to the V-phase electromagnetic sintering line outlet and the U-phase electromagnetic sintering line outlet by bolts. The water return assembly includes a water return chamber and a water return pipe.

[0010] Furthermore, the mechanical seal includes a rotating ring and a stationary ring. The stationary ring is fixedly installed inside the end cover, while the rotating ring is sleeved and fitted to the outside of the roller end shaft. The rotating ring rotates together with the roller sleeve and the roller end shaft. A spring is placed between the stationary ring and the end cover, with one end of the spring pressing against the end cover and the other end pressing against the stationary ring. The contact surfaces between the stationary ring and the rotating ring are tightly fitted to form a sealing surface. O-rings are installed on the stationary ring and the rotating ring, forming sealing surfaces with adjacent parts respectively.

[0011] Furthermore, a skeleton oil seal is embedded inside the bearing housing, and the skeleton oil seal is located on the outside of the self-aligning roller bearing.

[0012] Furthermore, the iron core plug is welded and fixed between the iron core shaft head and the iron core body.

[0013] The beneficial effects of this utility model are as follows: The device of this application has four lead wires of two electromagnetic sintering wires all led out from one end of the roller electromagnetic stirrer, eliminating the need for complex cooling water chamber components, terminal board components, and junction box components at the lead wire end, thus making the manufacturing cost lower. All the lead wires of the roller electromagnetic stirrer are at one end. When the roller electromagnetic stirrer is hoisted into place on the continuous casting machine, all the external high-temperature cables that need to be connected are at one end. In the compact environment of the continuous casting machine, this makes it more convenient to connect the high-temperature cables and can greatly improve the installation efficiency. The non-outlet end of the roller electromagnetic stirrer has a simple structure and occupies very little space, which can make up more space for the compact structure of the continuous casting machine and greatly reduce the amount of modification work required for the sector section. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] The present invention will now be described in further detail with reference to the accompanying drawings.

[0016] Figure 1 : A front view of a single-sided cable-exit roller electromagnetic stirrer according to this utility model; Figure 2 : A perspective view of a single-sided cable-exit roller electromagnetic stirrer according to this utility model; Figure 3: A cross-sectional view of a single-sided cable-exit roller electromagnetic stirrer according to this utility model; Figure 4 : Exploded view of a single-sided output roller electromagnetic stirrer according to this utility model; Figure 5 : A diagram of the core assembly of a single-sided output roller electromagnetic stirrer according to this utility model; Figure 6 This utility model describes the winding diagram of the electromagnetic coil of a single-sided roller electromagnetic stirrer. Figure 7 : A mechanical seal structure diagram of a single-sided output roller electromagnetic stirrer according to this utility model; Figure 8 : A diagram of the cooling water chamber assembly of a single-sided output roller electromagnetic stirrer according to this utility model; Figure 9 : A terminal board assembly diagram of a single-sided output roller electromagnetic stirrer according to this utility model; Figure 10 : A junction box assembly diagram of a single-sided cable-exit roller electromagnetic stirrer according to this utility model; Figure 11 : A schematic diagram of the assembly of a single-sided output roller electromagnetic stirrer according to this utility model; Figure 12 This utility model describes a high-temperature cable connection diagram for a single-sided output roller electromagnetic stirrer.

[0017] In the picture: 1. Roller sleeve; 2. Roller end shaft; 3. Iron core assembly; 4. Bearing housing; 5. End cover; 6. Cooling water chamber assembly; 7. Terminal block assembly; 8. Junction box assembly; 9. Return water assembly; 10. O-ring; 11. Spring; 12. Self-aligning roller bearing; 13. Skeleton oil seal; 14. Mechanical seal; 31. Iron core shaft head; 32. Iron core plug; 33. Iron core lamination; 34. Iron core body; 35. Electromagnetic coil; 61. Upper flange of cooling water chamber; 62. Cooling water chamber shell; 63. Lower flange of cooling water chamber; 64. Elbow; 65. Water pipe; 71. Terminal block; 72. Waterproof terminal plug; 73. Wiring screw; 74. Bolt fastener; 75. Wiring lug; 81. Junction box flange; 82. Junction box side plate; 83. Junction box top plate; 84. Junction box cover plate; 85. High-temperature cable waterproof plug; 86. Pneumatic wrench connector. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0019] like Figure 1-12 As shown, this utility model discloses a single-sided output roller electromagnetic stirrer, including an iron core assembly 3. The iron core assembly 3 includes an iron core shaft head 31, an iron core block 32, an iron core lamination 33, an iron core body 34, and an electromagnetic coil 35. The iron core lamination 33 is fixedly installed inside the iron core body 34. The iron core shaft head 31 is welded and fixed to both ends of the iron core body 34. The electromagnetic coil 35 includes two electromagnetic sintered wires, namely a V-phase electromagnetic sintered wire and a U-phase electromagnetic sintered wire. The V-phase electromagnetic sintered wire is wound with a first coil, a third coil, and a fifth coil on the surface of the iron core assembly 3. The U-phase electromagnetic sintered wire is wound with a second coil and a fourth coil on the surface of the iron core assembly 3. The winding directions of the first coil, the second coil, the third coil, the fourth coil, and the fifth coil are clockwise, clockwise, counterclockwise, counterclockwise, and clockwise, respectively. The iron core assembly 3 is installed inside the roller sleeve 1. The roller end shaft 2 is fixedly installed at the outlet end of the roller sleeve 1 by bolts. The other end of the roller sleeve 1 is connected to the roller end shaft 2 as a whole. The external dimensions of the end are the same as the shaft dimensions of the roller end shaft 2. A self-aligning roller bearing 12 is installed on the outside of the shaft of the roller end shaft 2. The self-aligning roller bearing 12 is installed inside the bearing housing 4. An end cover 5 is provided on the outside of the bearing housing 4. A mechanical seal 14, a spring 11, and an O-ring 10 are provided inside the end cover 5. A cooling water chamber assembly 6 is fixedly installed on one side of the end cover 5 by bolts. The cooling water chamber assembly 6 is fixed to the top of the terminal plate assembly 7 by bolts. The terminal plate assembly 7 includes a terminal plate 71, a terminal waterproof plug 72, a wiring screw 73, a bolt fastener 74, and a wiring lug. Terminal plate 71 is fixedly installed with terminal waterproof plug 72. Terminal waterproof plug 72 is threadedly connected to terminal screw 73. The bottom of terminal screw 73 is fastened to terminal lug 75 by bolt fastener 74. Terminal plate assembly 7 is fixed to the top of junction box assembly 8 by bolt. The output ends of V-phase electromagnetic sintering wire and U-phase electromagnetic sintering wire both pass through iron core shaft head 31 on one side of iron core assembly 3. Iron core shaft head has two oblique groove notches for electromagnetic sintering wire and water flow channel. The output ends of V-phase electromagnetic sintering wire and U-phase electromagnetic sintering wire pass through iron core shaft head 31 and cooling water chamber assembly 6 in sequence and the output ends are connected to terminal screw 73 of terminal plate assembly 7. Terminal lug 75 is electrically connected to external frequency converter power supply through wire. The cooling water chamber assembly 6 includes an upper cooling water chamber flange 61, a cooling water chamber cylinder 62, a lower cooling water chamber flange 63, an elbow 64, and a water pipe 65. The elbow 64 is externally connected to the cooling water chamber cylinder 62, and the water pipe 65 is connected to the elbow 64. The upper cooling water chamber flange 61 is provided at the inlet end of the cooling water chamber cylinder 62 and is fastened to the end cover 5. The lower cooling water chamber flange 63 is fixedly installed at the bottom of the cooling water chamber cylinder 62 and is fastened to the terminal plate 71. The junction box assembly 8 includes a box frame, a junction box flange 81, a junction box side plate 82, a junction box top plate 83, a junction box cover plate 84, a high-temperature cable waterproof plug 85, and a blower connector 86. The junction box side plate 82, the junction box top plate 83, and the junction box cover plate 84 are fastened to the box frame through the junction box flange 81. The high-temperature cable waterproof plug 85 and the blower connector 86 are fixed to the surface of the junction box cover plate 84. The mechanical seal 14 includes a rotating ring and a stationary ring. The stationary ring is fixedly installed inside the end cover 5. The rotating ring is sleeved and fitted to the outside of the roller end shaft 2. The rotating ring will rotate together with the roller sleeve 1 and the roller end shaft 2. The spring 11 is set between the stationary ring and the end cover 5. One end of the spring 11 presses against the end cover 5, and the other end presses against the stationary ring. The contact surfaces between the stationary ring and the rotating ring are tightly fitted to form a sealing surface. The O-ring 10 is installed on the stationary ring and the rotating ring, forming a sealing surface with the adjacent parts respectively.

[0020] Example 1: I. Overall Structure Overview This embodiment provides a single-sided output roller-type electromagnetic stirrer, mainly composed of a roller sleeve 1, a roller end shaft 2, an iron core assembly 3, a bearing seat 4, an end cover 5, a cooling water chamber assembly 6, a terminal plate assembly 7, a junction box assembly 8, and a return water assembly 9. Its core function is to drive the flow of molten steel inside the billet through an electromagnetic field, thereby improving the quality of the billet. At the same time, it adapts to high temperature and high humidity conditions through a multi-stage sealing and drying system.

[0021] II. Core Component Structure and Functions 1. Iron core assembly 3 Composition: Iron core shaft head 31, iron core plug 32, iron core lamination 33, iron core body 34, electromagnetic coil 35.

[0022] Manufacturing process: Lamination and installation: After lamination of the core laminations 33, they are installed into the core body 34, and the core shaft heads 31 are welded to both ends and then machined after welding.

[0023] Winding and insulation treatment: An electromagnetic coil 35 is wound on the iron core lamination 33 and the iron core body 34. Five coils are wound using two electromagnetic sintered wires. The left end V phase: coils 1, 3, and 5; the right end U phase: coils 2 and 4. The winding direction is clockwise, clockwise, counterclockwise, counterclockwise, and clockwise (observed from U phase to V phase).

[0024] Insulation reinforcement: After winding, multiple vacuum impregnation and baking processes are performed to ensure long-term stable operation of the electromagnetic coil 35 and maintain a high insulation value.

[0025] Electrical connection: The electromagnetic coil 35 is led out from one end through 4 lead cables and connected to an external frequency converter power supply via the terminal screw 73. After being energized, it generates a traveling wave magnetic field, which drives the molten steel to flow.

[0026] 2. Roller sleeve and support structure Roller sleeve 1: The iron core assembly 3 is installed inside, and the roller end shaft 2 is assembled at both ends.

[0027] Roller end shaft 2: It is installed in bearing housing 4 through self-aligning roller bearing 12 to achieve rotational support.

[0028] End cap 5: Installed on bearing housing 4, it integrates mechanical seal 14, spring 11, and O-ring 10 to form a multi-stage water seal system.

[0029] 3. Sealing structure Mechanical seal 14: Mechanical seal 14 includes a rotating ring and a stationary ring. The stationary ring is fixedly installed inside the end cover 5, while the rotating ring is sleeved and fitted onto the outside of the roller end shaft 2. The rotating ring rotates together with the roller sleeve 1 and the roller end shaft 2. A spring 11 is positioned between the stationary ring and the end cover 5. One end of the spring 11 presses against the end cover 5, and the other end presses against the stationary ring. The spring 11 provides dynamic compensation for the mechanical seal 14. The contact surfaces between the stationary ring and the rotating ring are tightly fitted to form a sealing surface, thereby achieving the effect of sealing the water cavity and the lubricating oil cavity. O-rings 11 are installed on the stationary ring and the rotating ring, forming sealing surfaces with adjacent parts respectively.

[0030] The main function of the skeleton oil seal 13 is to overflow from the skeleton oil seal 13 after the lubricating oil chamber is filled with lubricating oil and a certain oil pressure is reached, so as to prevent the lubricating oil from being forced open by the sealing surfaces of the dynamic ring and stationary ring of the mechanical seal 14 due to excessive pressure and entering the water chamber; another function is to prevent external debris from entering the lubricating oil chamber.

[0031] Non-outlet end seal: Only a simple return water assembly 9 is installed for cooling water circulation.

[0032] III. Auxiliary System Structure and Function 1. Cooling water chamber assembly 6 Composition: Cooling water chamber upper flange 61, cylinder 62, lower flange 63, elbow 64, water pipe 65.

[0033] Cooling water first enters the cooling water chamber assembly 6 from the outside, then enters the roller sleeve 1 through the water hole and water groove of the iron core shaft head 31, completely immersing the iron core assembly 3 in water. After the cooling water carries away the heat of the electromagnetic coil 35, it flows out from the iron core shaft head 31 at the other end and enters the return water assembly at the non-outlet end. Finally, the water pipe of the return water assembly is discharged.

[0034] Function: As a transition zone between the cooling zone and the drying zone, the temperature of the roller electromagnetic stirrer is adjusted.

[0035] Provides an installation platform for terminal block assembly 7.

[0036] 2. Terminal board assembly 7 Composition: Terminal block 71, waterproof terminal plug 72, wiring screw 73, bolt fastener 74, wiring lug 75.

[0037] Function: Located at the interface between the cooling zone and the drying zone, it fixes the wiring screw 73 and the junction box assembly 8.

[0038] Terminal waterproof plug 72 prevents moisture from entering electrical connection parts.

[0039] 3. Junction Box Assembly 8 Composition: Junction box flange 81, side plate 82, top plate 83, cover plate 84, high-temperature cable waterproof plug 85, air gun connector 86.

[0040] Function: Provides a dry, sealed environment to protect the connection between the external high-temperature cable and the electromagnetic stirrer.

[0041] The high-temperature cable waterproof plug 85 seals the gap, and the air gun connector 86 is connected to dry compressed air or nitrogen to form positive pressure to prevent water vapor from entering.

[0042] IV. Installation and Operation Process 1. Installation sequence of outgoing terminals End cap 5: Fixed to bearing housing 4, completing the basic seal.

[0043] Cooling water chamber assembly 6: Connected to end cover 5 via flange to form a cooling channel.

[0044] Terminal block assembly 7: Installed on cooling water chamber assembly 6 to fix electrical connection components.

[0045] Junction box assembly 8: Installed on terminal block assembly 7 to complete the dry sealing system assembly.

[0046] 2. Installation at non-outgoing terminals The structure is simplified and costs are reduced by simply installing the return water assembly 9 on the end cap 5.

[0047] 3. Operating Mode Dual-machine series connection: Two roller electromagnetic stirrers are mounted opposite each other and connected in series via high-temperature cables. Figure 12 This ensures that the electromagnetic thrust direction is consistent.

[0048] Magnetic field drive: Powered by an external frequency converter, the electromagnetic coil 35 generates a traveling wave magnetic field, and the molten steel flows regularly under the action of the Lorentz force, which improves the quality of the billet.

[0049] V. Technological Advantages High-efficiency sealing: The multi-stage sealing structure (mechanical seal + O-ring + skeleton oil seal) is suitable for high temperature and high humidity environments.

[0050] Reliable insulation: The vacuum impregnation and baking process ensures long-term stable operation of the electromagnetic coil.

[0051] Modular design: Differentiated structure between outgoing and non-outgoing terminals reduces manufacturing costs.

[0052] Drying protection: The junction box assembly isolates moisture through positive pressure drying gas, extending the equipment's lifespan.

[0053] In the preferred technical solution, a water return assembly 9 is fixedly installed on the outside of the end cap on the side opposite to the V-phase electromagnetic sintering line outlet and the U-phase electromagnetic sintering line outlet by bolts. The water return assembly 9 includes a water return chamber and a water return pipe, which simplifies the structure of the non-outlet end to reduce costs.

[0054] In the preferred technical solution, a skeleton oil seal 13 is embedded inside the bearing housing 4. The skeleton oil seal 13 is located on the outside of the self-aligning roller bearing 12, and has the function of relieving pressure in the lubricating oil cavity, and prevents external dust or other particles from entering the lubricating oil cavity of the self-aligning roller bearing 12.

[0055] In the preferred technical solution, the core block 32 is welded and fixed between the core shaft head 31 and the core body 34, and the core block 32 is used to reinforce the core body 34.

[0056] Operating principle: such as Figure 10 As shown, the arrow points in the direction of the slab casting flow. Taking the molten steel inside the slab as the object of force study, under the action of the frequency converter, the energized electromagnetic coil generates a traveling wave magnetic field in the molten steel of the slab to be stirred. The molten steel generates eddy currents under the action of the traveling wave magnetic field, thus becoming a current-carrying conductor. The magnetic field generates a Lorentz force on the current-carrying conductor, that is, electromagnetic thrust. The electromagnetic thrust drives the molten steel to flow, thereby achieving stirring of the molten steel, and thus achieving the purpose of improving the equiaxed crystal ratio of the slab, improving the internal quality of the slab such as center segregation, center porosity, and center shrinkage cavity.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A single-sided cable-exit roller-type electromagnetic stirrer, characterized in that, The system includes a core assembly (3), which includes a core shaft head (31), a core block (32), a core lamination (33), a core body (34), and an electromagnetic coil (35). The core lamination (33) is fixedly installed inside the core body (34), and the core shaft head (31) is welded and fixed to both ends of the core body (34). The electromagnetic coil (35) includes two electromagnetic sintered wires, which include a V-phase electromagnetic sintered wire and a U-phase electromagnetic sintered wire. The V-phase electromagnetic sintered wire has a first coil, a third coil, and a fifth coil wound on the surface of the core assembly (3). The U-phase electromagnetic sintered wire has a second coil and a fourth coil wound on the surface of the core assembly (3). The winding directions of the first coil, the second coil, the third coil, the fourth coil, and the fifth coil are clockwise, clockwise, counterclockwise, counterclockwise, and clockwise, respectively. The core assembly (3) is sleeved and installed inside the roller sleeve (1). The roller end shaft (2) is fixedly installed at the outlet end of the roller sleeve (1) by bolts. The other end of the roller sleeve (1) is connected to the roller end shaft (2) as a whole. The external dimensions of the end are consistent with the shaft dimensions of the roller end shaft (2). A self-aligning roller bearing (12) is sleeved and installed outside the shaft of the roller end shaft (2). The self-aligning roller bearing (12) is installed inside the bearing seat (4). An end cover (5) is provided on the outside of the bearing seat (4). A mechanical seal (14), a spring (11), and an O-ring (10) are provided inside the end cover (5). A cooling water chamber assembly (6) is fixedly installed on one side of the end cover (5) by bolts. The cooling water chamber assembly (6) is fixed to the top of the terminal plate assembly (7) by bolts. The terminal plate assembly (7) includes a terminal plate (71), a terminal waterproof plug (72), a wiring screw (73), and bolt fasteners. The terminal block (71) is fixedly installed with a waterproof terminal plug (72), which is threadedly connected to the terminal screw (73). The bottom of the terminal screw (73) is fastened to the terminal plug (75) by a bolt fastener (74). The terminal block assembly (7) is fixed to the top of the junction box assembly (8) by bolts. The output ends of the V-phase electromagnetic sintering wire and the U-phase electromagnetic sintering wire both pass through the iron core shaft head (31) on one side of the iron core assembly (3). The iron core shaft head has two oblique groove notches used as electromagnetic sintering wire and water flow channel. The output ends of the V-phase electromagnetic sintering wire and the U-phase electromagnetic sintering wire pass through the iron core shaft head (31) and the interior of the cooling water chamber assembly (6) in sequence, and the output ends are connected to the terminal screw (73) of the terminal block assembly (7). The terminal plug (75) is electrically connected to the external frequency converter power supply through a wire.

2. The single-sided output roller electromagnetic stirrer according to claim 1, characterized in that, The cooling water chamber assembly (6) includes an upper flange (61), a cooling water chamber cylinder (62), a lower flange (63), an elbow (64), and a water pipe (65). The elbow (64) is externally connected to the cooling water chamber cylinder (62), and the water pipe (65) is connected to the elbow (64). The upper flange (61) is provided at the inlet end of the cooling water chamber cylinder (62), and the upper flange (61) is fastened to the end cover (5). The lower flange (63) is fixedly installed at the bottom of the cooling water chamber cylinder (62), and the lower flange (63) is fastened to the terminal plate (71).

3. A single-sided output roller-type electromagnetic stirrer according to claim 1, characterized in that, The junction box assembly (8) includes a box frame, a junction box flange (81), a junction box side plate (82), a junction box top plate (83), a junction box cover plate (84), a high-temperature cable waterproof plug (85), and a blower connector (86). The junction box side plate (82), the junction box top plate (83), and the junction box cover plate (84) are fastened to the box frame through the junction box flange (81). The high-temperature cable waterproof plug (85) and the blower connector (86) are fixed to the surface of the junction box cover plate (84).

4. A single-sided output roller-type electromagnetic stirrer according to claim 1, characterized in that, A water return assembly (9) is fixedly installed on the outside of the end cap on the side opposite to the outlet of the V-phase electromagnetic sintering line and the outlet of the U-phase electromagnetic sintering line by bolts. The water return assembly (9) includes a water return chamber and a water return pipe.

5. A single-sided output roller-type electromagnetic stirrer according to claim 1, characterized in that, The mechanical seal (14) includes a rotating ring and a stationary ring. The stationary ring is fitted and fixed inside the end cover (5). The rotating ring is fitted and attached to the outside of the shaft of the roller end shaft (2). The rotating ring will rotate together with the roller sleeve (1) and the roller end shaft (2). The spring (11) is set between the stationary ring and the end cover (5). One end of the spring (11) presses against the end cover (5) and the other end presses against the stationary ring. The contact surfaces between the stationary ring and the rotating ring are tightly fitted to form a sealing surface. The O-ring (10) is installed on the stationary ring and the rotating ring, forming a sealing surface with the adjacent parts respectively.

6. A single-sided output roller-type electromagnetic stirrer according to claim 1, characterized in that, The bearing housing (4) is inlaid with a skeleton oil seal (13), which is located on the outside of the self-aligning roller bearing (12).

7. A single-sided output roller-type electromagnetic stirrer according to claim 1, characterized in that, The core plug (32) is welded and fixed between the core shaft head (31) and the core body (34).

Images