Roller type electromagnetic stirrer for slab continuous casting

Abstract

The utility model discloses a roller type electromagnetic stirrer for slab continuous casting. The roller type electromagnetic stirrer comprises a rotating shaft, a stirring mechanism and a connecting mechanism, the stirring mechanism is arranged in the rotating shaft and comprises the connecting main shaft, the fixed disc, the connecting main disc, the generating mechanism and the like, and the generating mechanism comprises the connecting seat, the iron core, the separation ring, the coil, the mouse cage assembly and the like, so that the current can be increased and the apparent power of the current can be reduced under the mutual cooperation; and the three sets of generating mechanisms are arranged, so that the electromagnetic strength can be effectively improved, the stirring effect can be enhanced, the supporting strength of the electromagnetic stirrer can be effectively improved, and high practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of slab continuous casting, in particular to a roller type electromagnetic stirrer for slab continuous casting. Background Art

[0002] Slab continuous casting is a continuous steelmaking technology with slab as the main product. The slab with a width-to-thickness ratio greater than 3 is called a slab. Continuous casting and rolling of steel slabs is mainly used for rolling flat plates.

[0003] During the continuous casting process, low-frequency linear traveling wave magnetic field electromagnetic stirrers are often used to stir the slab due to its flat strip shape. Some existing roller electromagnetic stirrers lack magnetic pole guidance, which makes the magnetic field easy to diffuse everywhere, and the cross-section of the magnetic core is relatively small, which easily leads to magnetic field saturation and leakage. Utility Model Content

[0004] The utility model aims to provide a roller type electromagnetic stirrer for slab continuous casting to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a roller electromagnetic stirrer for slab continuous casting, comprising a rotating shaft capable of rotating and stirring, a stirring mechanism is arranged inside the rotating shaft, and a set of connecting mechanisms are connected to both the left and right ends;

[0006] The stirring mechanism includes a connecting main shaft, a fixed disk, a connecting main disk, a generating mechanism and a through hole. A cavity is provided in the rotating shaft, and a group of connecting main shafts are provided at the left and right ends of the cavity. A group of fixed disks are provided at the opposite ends of the two groups of connecting main shafts, and are connected to the left and right ends of the connecting main shafts through the fixed disks. A group of connecting main disks are provided at the opposite ends of the two groups of fixed disks. Three groups of generating mechanisms are provided between the two groups of connecting main disks, and a number of through holes are provided in the two groups of fixed disks.

[0007] Preferably, the components of the generating mechanism are all the same, and the generating mechanism includes a connecting seat, an iron core, a separating ring, a coil and a squirrel cage assembly. Three groups of connecting seats are provided on the opposite surfaces of the two groups of connecting main disks, and the left and right groups of relative connecting seats are connected by an iron core. Several groups of separating rings are provided at equal intervals on the outside of the iron core, and magnetic poles are provided on the top of the separating rings. Coils are provided between the two groups of separating rings, and squirrel cage assemblies are provided on the outsides of the separating rings and the coils.

[0008] Preferably, the two groups of connecting mechanism components are the same, and the connecting mechanism includes a side plate, a connecting pipe, a bearing seat and a brake pin. A group of side plates are provided at the left and right ends of the rotating shaft. The two groups of side plates are connected to a group of bearing seats on the sides away from each other through a connecting pipe, and a group of brake pins are provided at the middle ends of the two groups of connecting pipes.

[0009] Preferably, the two sets of connecting main shafts on the sides away from each other extend through the two sets of connecting tubes and are connected and fixed by brake pins.

[0010] Preferably, a group of flanges are provided on the opposing surfaces of the two groups of side plates near the outer sides of the rotating shaft.

[0011] Preferably, a spiral bevel groove is provided on the outer side of the rotating shaft.

[0012] Preferably, a plurality of groups of paddles are provided inside the rotating shaft cavity.

[0013] Preferably, the through hole may be filled with a sealant.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Through the stirring mechanism arranged in the rotating shaft, the stirring mechanism includes components such as a connecting main shaft, a fixed disk, a connecting main disk and a generating mechanism, and the generating mechanism includes components such as a connecting seat, an iron core, a separating ring, a coil and a squirrel cage assembly, which can increase the current and reduce the apparent power of the current by cooperating with each other, thereby stirring the slab in the smelting process, and the generating mechanism is provided with three groups, which can effectively improve the electromagnetic strength, which is beneficial to enhancing the stirring effect, and can effectively improve the supporting strength of the electromagnetic stirrer, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the stirring mechanism of the utility model from the left side;

[0018] Figure 3 It is a partial front view structural diagram of the generating mechanism of the utility model;

[0019] Figure 4 It is a partial front view structural schematic diagram of the connecting mechanism of the utility model.

[0020] In the figure: rotating shaft-1, stirring mechanism-2, connecting mechanism-3, connecting main shaft-21, fixed disk-22, connecting main disk-23, generating mechanism-24, through hole-25, connecting seat-241, iron core-242, separating ring-243, magnetic pole-2431, coil-244, squirrel cage assembly-245, side disk-31, connecting pipe-32, bearing seat-33, brake pin-34. DETAILED DESCRIPTION

[0021] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0022] See also Figure 1-2The utility model provides a roller electromagnetic stirrer for slab continuous casting, comprising a rotating shaft 1 capable of rotating and stirring, a stirring mechanism 2 is arranged inside the rotating shaft 1, and a set of connecting mechanisms 3 are connected to both the left and right ends;

[0023] The stirring mechanism 2 includes a connecting main shaft 21, a fixed disk 22, a connecting main disk 23, a generating mechanism 24 and a through hole 25. A cavity is provided in the rotating shaft 1, and a group of connecting main shafts 21 are connected to the left and right ends of the cavity. A group of fixed disks 22 are provided at the opposite ends of the two groups of connecting main shafts 21, and are connected to the left and right ends of the connecting main shaft 21 through the fixed disks 22. The rotating shaft 1 can rotate around the fixed disk 22, and a group of connecting main disks 23 are provided at the opposite ends of the two groups of fixed disks 22. Three groups of generating mechanisms 24 are provided between the two groups of connecting main disks 23, and several groups of through holes 25 are provided in the two groups of fixed disks 22, which can be used for threading and water in and out, and the through holes 25 can be filled with sealant to achieve the sealing of the rotating shaft 1 cavity. Furthermore, a spiral inclined groove is provided on the outside of the rotating shaft 1 for facilitating water flow, and several groups of paddles are provided on the inside of the cavity. When rotating, the water in the cavity can be moved by the paddles to improve the cooling effect.

[0024] See also Figure 2-3 The utility model provides a roller electromagnetic stirrer for slab continuous casting, the components of the generating mechanism 24 are all the same, the generating mechanism 24 comprises a connecting seat 241, an iron core 242, a separating ring 243, a coil 244 and a cage assembly 245, three connecting seats 241 are arranged on the opposite sides of two connecting main plates 23, the left and right opposite connecting seats 241 are connected by the iron core 242, a plurality of separating rings 243 are arranged at equal intervals on the outer side of the iron core 242, and the top of the separating ring 243 is provided with a magnetic pole 2431 for guiding the magnetic field, a coil 244 is arranged between the two separating rings 243, and a cage assembly 245 is arranged on the outer side of the separating ring 243 and the coil 244, the cage assembly 245 is fixedly arranged between the two connecting seats 241, because the cage assembly 245 cannot rotate, the current of the coil 244 increases under the same voltage, and the apparent power of the current decreases, so that it is easier to generate a strong stirring force.

[0025] See also Figure 4The utility model provides a roller electromagnetic stirrer for slab continuous casting, wherein two sets of connecting mechanism 3 components are identical, the connecting mechanism 3 comprises a side disc 31, a connecting pipe 32, a bearing seat 33 and a brake pin 34, a set of side discs 31 are respectively arranged at the left and right ends of the rotating shaft 1, a set of flanges are respectively arranged at the positions of the opposite surfaces of the two sets of side discs 31 close to the outer side of the rotating shaft 1, which can protect the rotating shaft 1 and prevent it from being offset during the rotation process, a set of bearing seats 33 are respectively connected to the two sets of side discs 31 on the sides away from each other through the connecting pipe 32, a set of brake pins 34 are respectively arranged at the middle ends of the two sets of connecting pipes 32, wherein the two sets of connecting main shafts 21 on the sides away from each other both extend through the two sets of connecting pipes 32, and are connected and fixed by the brake pins 34, thereby fixing the stirring mechanism 2.

[0026] Here’s how it works:

[0027] When in use, the current flows in the coil 244 and is enhanced by the fixed squirrel cage assembly 245, reducing the apparent power of the current, thereby making it easier to generate a strong stirring force to drive the rotating shaft 1 to rotate. During the rotation of the rotating shaft 1, the temperature can be reduced through its inner paddle and outer inclined groove, thereby extending its service life and avoiding overheating.

[0028] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A roller electromagnetic stirrer for slab continuous casting, characterized in that: The invention comprises a rotating shaft (1) capable of rotating and stirring, wherein a stirring mechanism (2) is arranged inside the rotating shaft (1), and a set of connecting mechanisms (3) are connected to both the left and right ends; The stirring mechanism (2) comprises a connecting main shaft (21), a fixed disk (22), a connecting main disk (23), a generating mechanism (24) and a through hole (25). A cavity is provided in the rotating shaft (1). A group of connecting main shafts (21) are provided at the left and right ends of the cavity. A group of fixing disks (22) are provided at opposite ends of the two groups of connecting main shafts (21) and are connected to the left and right ends of the connecting main shafts (21) through the fixing disks (22). A group of connecting main disks (23) are provided at opposite ends of the two groups of fixing disks (22). Three groups of generating mechanisms (24) are provided between the two groups of connecting main disks (23), and a plurality of groups of through holes (25) are provided in the two groups of fixing disks (22).

2. The roller electromagnetic stirrer for slab continuous casting according to claim 1, characterized in that: The components of the generating mechanism (24) are all the same. The generating mechanism (24) comprises a connecting seat (241), an iron core (242), a separating ring (243), a coil (244) and a squirrel cage assembly (245). The two groups of connecting main plates (23) are provided with three groups of connecting seats (241) on the opposite sides. The left and right groups of connecting seats (241) are connected through the iron core (242). A plurality of separating rings (243) are provided at equal intervals on the outside of the iron core (242). The top of each separating ring (243) is provided with a magnetic pole (2431). A coil (244) is provided between the two groups of separating rings (243), and a squirrel cage assembly (245) is provided on the outside of each separating ring (243) and the coil (244).

3. The roller electromagnetic stirrer for slab continuous casting according to claim 1, characterized in that: The two groups of connecting mechanism (3) components are identical. The connecting mechanism (3) comprises a side plate (31), a connecting pipe (32), a bearing seat (33) and a brake pin (34). A group of side plates (31) are provided at the left and right ends of the rotating shaft (1). The two groups of side plates (31) are connected to a group of bearing seats (33) via a connecting pipe (32) at the sides away from each other. A group of brake pins (34) are provided at the middle ends of the two groups of connecting pipes (32).

4. A roller type electromagnetic stirrer for slab continuous casting according to claim 3, characterized in that: The two sets of connecting main shafts (21) on the sides away from each other extend through the two sets of connecting pipes (32) and are connected and fixed by brake pins (34).

5. The roller electromagnetic stirrer for slab continuous casting according to claim 3, characterized in that: A set of flanges are provided on the opposite surfaces of the two sets of side plates (31) close to the outer side of the rotating shaft (1).

6. The roller electromagnetic stirrer for slab continuous casting according to claim 1, characterized in that: The outer side of the rotating shaft (1) is provided with a spiral inclined groove.

7. The roller electromagnetic stirrer for slab continuous casting according to claim 1, characterized in that: A plurality of groups of paddles are arranged inside the cavity of the rotating shaft (1).

8. The roller electromagnetic stirrer for slab continuous casting according to claim 1, characterized in that: The through hole (25) may be filled with a sealant.

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