Medium-frequency induction furnace

Abstract

The utility model discloses a medium-frequency induction furnace which comprises a bottom plate, two sets of mounting plates are mounted on the bottom plate, an induction furnace body is mounted between the two sets of mounting plates, two sets of fixing plates are mounted on the side wall of the induction furnace body, first rotating rods are mounted on the two sets of fixing plates, and the two sets of first rotating rods are rotationally connected to the two sets of mounting plates respectively. A first motor is installed at the bottom of the induction furnace body, the output end of the first motor penetrates into the induction furnace body, the output end of the first motor is connected with a stirring rod, and multiple sets of stirring blades are installed on the stirring rod. During metal smelting, the first motor drives the stirring rod to rotate, and the stirring rod drives the stirring blades to continuously stir molten metal in the induction furnace body, so that heat is quickly transferred and diffused in the molten metal, the situation that local areas are overheated due to heat accumulation is avoided, and meanwhile the situation that other areas are overcooled due to the fact that heat is not supplemented in time is also prevented; and the temperature of molten metal is kept uniform, the smelting time is shortened, and the smelting quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of medium-frequency induction furnace technology, and more specifically, to a medium-frequency induction furnace. Background Technology

[0002] An intermediate frequency induction furnace is a power supply device that converts 50Hz AC power into intermediate frequency power. It rectifies three-phase AC power into DC power, then converts the DC power into adjustable intermediate frequency current, which is supplied to the intermediate frequency alternating current flowing through the capacitor and induction coil. This generates high-density magnetic lines of force in the induction coil, which cut the metal material placed in the induction coil and generate large eddy currents in the metal material, thereby achieving metal casting.

[0003] When existing medium-frequency induction furnaces are in operation, the magnetic field generated by the induction coil causes the metal inside the furnace to generate an induced current, which in turn heats up. The part of the metal near the induction coil may heat up and melt rapidly, while the part far from the coil heats up more slowly, resulting in uneven heat distribution and large temperature differences. This causes deviations in the metal during melting in the medium-frequency induction furnace, thus affecting the melting quality.

[0004] Therefore, a new solution is needed to address the above problems. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a medium-frequency induction furnace.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A medium-frequency induction furnace includes a base plate with two sets of mounting plates installed on it. An induction furnace body is mounted between the two sets of mounting plates. Two sets of fixing plates are installed on the side wall of the induction furnace body. Each of the fixing plates has a first rotating rod mounted on it, and the two sets of first rotating rods are rotatably connected to the two sets of mounting plates respectively. A first motor is installed at the bottom of the induction furnace body, with its output end penetrating into the furnace body. The output end of the first motor is connected to a stirring rod, which has multiple sets of stirring blades mounted on it. These blades are arranged equidistantly in a ring around the stirring rod. One set of mounting plates has a drive assembly for rotating the induction furnace body. Both sets of mounting plates have dustproof components for protecting the furnace body from dust. The base plate has a support assembly for supporting the furnace body.

[0008] Furthermore, the drive assembly includes a second motor, which is mounted on one of the mounting plates. The output end of the second motor extends through one of the mounting plates and is connected to a second rotating rod. A second gear is mounted on the second rotating rod.

[0009] Furthermore, the second gear meshes with the first gear, which is mounted on one of the first rotating rods.

[0010] Furthermore, the dustproof assembly includes two sets of lifting frames, which are respectively mounted on two sets of mounting plates. One set of lifting frames is rotatably connected with a threaded rod, and the other set of lifting frames is equipped with a guide rod.

[0011] Furthermore, a third motor is installed on the top of one of the lifting frames, and the output end of the third motor is connected to a threaded rod.

[0012] Furthermore, the dustproof assembly also includes a lifting plate, one end of which is threadedly connected to a threaded rod, and the other end of which is slidably connected to a guide rod. A connecting rod is installed at the bottom of the lifting plate, and a dustproof cover is connected to the connecting rod. The dustproof cover is used to seal the induction furnace body.

[0013] Furthermore, the support assembly includes two sets of support plates, both ends of which are arc-shaped structures. Multiple sets of spring columns are installed at the bottom of each set of support plates, and support blocks are installed at the bottom of each set of spring columns. The support blocks are installed on the base plate.

[0014] The beneficial effects of this utility model are:

[0015] 1. In the metal smelting process, the first motor drives the stirring rod to rotate, and the stirring rod drives the stirring blades to continuously stir the molten metal in the induction furnace body, so that heat is quickly transferred and diffused in the molten metal, avoiding overheating in local areas due to heat accumulation, and also preventing other areas from becoming too cold due to insufficient heat replenishment, so that the temperature of the molten metal is kept uniform, reducing smelting time and improving smelting quality.

[0016] 2. By setting up a dustproof component, this utility model prevents external dust and impurities from entering the induction furnace body during metal smelting by installing a dustproof cover on the furnace body, thus ensuring that the quality of the molten metal is not reduced. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a medium-frequency induction furnace in this embodiment;

[0018] Figure 2 This is a schematic diagram of one structure of the driving component in this embodiment;

[0019] Figure 3 This is a schematic diagram of a connection structure between the stirring rod and the stirring blade in this embodiment.

[0020] Reference numerals in the attached drawings: 1. Base plate; 2. Mounting plate; 3. Induction furnace body; 4. Fixing plate; 5. First rotating rod; 6. First motor; 7. Stirring rod; 8. Stirring blade; 9. Second motor; 10. Second rotating rod; 11. Second gear; 12. First gear; 13. Lifting frame; 14. Threaded rod; 15. Guide rod; 16. Third motor; 17. Lifting plate; 18. Connecting rod; 19. Dust cover; 20. Support plate; 21. Spring column; 22. Support block. Detailed Implementation

[0021] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: A medium-frequency induction furnace, such as Figures 1-3 As shown, the furnace includes a base plate 1, on which two sets of mounting plates 2 are installed. An induction furnace body 3 is installed between the two sets of mounting plates 2. Two sets of fixing plates 4 are installed on the side wall of the induction furnace body 3. A first rotating rod 5 is installed on each of the two sets of fixing plates 4. The two sets of first rotating rods 5 are rotatably connected to the two sets of mounting plates 2 respectively. A first motor 6 is installed at the bottom of the induction furnace body 3. The output end of the first motor 6 extends into the induction furnace body 3. The output end of the first motor 6 is connected to a stirring rod 7. Multiple sets of stirring blades 8 are installed on the stirring rod 7. The multiple sets of stirring blades 8 are arranged in a ring at equal intervals around the stirring rod 7. A drive assembly for rotating the induction furnace body 3 is installed on one set of mounting plates 2. Dustproof components for dust protection of the induction furnace body 3 are installed on both sets of mounting plates 2. A support assembly for supporting the induction furnace body 3 is installed on the base plate 1.

[0023] When smelting metal, the first motor 6 drives the stirring rod 7 to rotate, and the stirring rod 7 drives the stirring blade 8 to rotate, so that the stirring blade 8 continuously stirs the molten metal in the induction furnace body 3, so that the molten metal in the induction furnace body 3 can be heated evenly, avoiding large temperature differences in the molten metal, thereby improving the smelting quality of the molten metal.

[0024] Furthermore, such as Figure 1 and Figure 2 As shown, the drive assembly includes a second motor 9, which is mounted on one of the mounting plates 2. The output end of the second motor 9 extends through one of the mounting plates 2. The output end of the second motor 9 is connected to a second rotating rod 10. A second gear 11 is mounted on the second rotating rod 10. The second gear 11 meshes with a first gear 12. The first gear 12 is mounted on one of the first rotating rods 5.

[0025] When it is necessary to pour out the molten metal inside the induction furnace body 3, the second motor 9 drives the second rotating rod 10 to rotate, and the second rotating rod 10 drives the second gear 11 to rotate. Under the meshing action of the first gear 12 and the second gear 11, the first rotating rod 5 is driven to rotate, so that the first rotating rod 5 drives the induction furnace body 3 to rotate through the fixed plate 4, thereby pouring out the molten metal inside the induction furnace body 3.

[0026] Furthermore, such as Figure 1 and Figure 2 The dustproof assembly shown includes two sets of lifting frames 13, which are respectively mounted on two sets of mounting plates 2. One set of lifting frames 13 has a threaded rod 14 rotatably connected inside, and the other set of lifting frames 13 has a guide rod 15 installed inside. A third motor 16 is installed on the top of one set of lifting frames 13, and the output end of the third motor 16 is connected to the threaded rod 14.

[0027] The dustproof assembly also includes a lifting plate 17, one end of which is threadedly connected to a threaded rod 14, and the other end of which is slidably connected to a guide rod 15. A connecting rod 18 is installed at the bottom of the lifting plate 17, and a dust cover 19 is connected to the connecting rod 18. The dust cover 19 is adapted to the furnace opening of the induction furnace body 3 and is used to cover the induction furnace body 3.

[0028] When smelting metal, the third motor 16 drives the threaded rod 14 to rotate, and the threaded rod 14 drives the lifting plate 17 to move up and down. The lifting plate 17 drives the dust cover 19 to move through the connecting rod 18, and installs the dust cover 19 on the induction furnace body 3, thereby preventing external dust and impurities from entering the induction furnace body 3 and ensuring that the quality of the molten metal is not reduced.

[0029] Furthermore, such as Figure 1 and Figure 2 As shown, the support assembly includes two sets of support plates 20. Both ends of the two sets of support plates 20 are arc-shaped structures. Multiple sets of spring columns 21 are installed at the bottom of each set of support plates 20. Support blocks 22 are installed at the bottom of each set of spring columns 21. The multiple sets of support blocks 22 are installed on the base plate 1.

[0030] A support plate 20 is provided to support the bottom of the induction furnace body 3, ensuring its stability during use. The support plate 20 and the bottom of the induction furnace body 3 are in contact. When the induction furnace body 3 rotates, the bottom of the induction furnace body 3 applies pressure to the support plate 20, causing the support plate 20 to move downwards via the spring column 21 until the induction furnace body 3 separates from the support plate 20. When the induction furnace body 3 returns to its original position, the bottom of the induction furnace body 3 contacts the arc end of the support plate 20, simultaneously applying pressure to the support plate 20, causing the support plate 20 to move downwards via the spring column 21 until the support plate 20 comes into contact with the bottom of the induction furnace body 3. Then, under the elastic action of the spring column 21, the support plate 20 supports the induction furnace body 3, ensuring its stability.

[0031] The internal electrical connection structures of the induction furnace body 3, the first motor 6, the second motor 9, and the third motor 16 are well known to those skilled in the art and will not be described in detail here. All electrical components in this embodiment are externally connected to a power source during use.

[0032] The circuits, electrical components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected in this embodiment does not involve any improvement to the software.

[0033] The control method in this embodiment is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, this embodiment is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail in this embodiment.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A medium-frequency induction furnace, comprising a base plate (1), characterized in that, Two sets of mounting plates (2) are installed on the base plate (1), and an induction furnace body (3) is installed between the two sets of mounting plates (2). Two sets of fixing plates (4) are installed on the side wall of the induction furnace body (3), and a first rotating rod (5) is installed on each of the two sets of fixing plates (4). The two sets of first rotating rods (5) are rotatably connected to the two sets of mounting plates (2). A first motor (6) is installed at the bottom of the induction furnace body (3), and the output end of the first motor (6) extends into the induction furnace body (3). The output end of the first motor (6) is connected to a stirring rod (7). Multiple sets of stirring blades (8) are installed on the stirring rod (7). The multiple sets of stirring blades (8) are arranged in a ring at equal intervals around the stirring rod (7). One set of mounting plates (2) is equipped with a drive assembly for rotating the induction furnace body (3). Two sets of mounting plates (2) are equipped with dustproof components for dustproofing the induction furnace body (3). The base plate (1) is equipped with a support assembly for supporting the induction furnace body (3).

2. The medium-frequency induction furnace according to claim 1, characterized in that, The drive assembly includes a second motor (9), which is mounted on one of the mounting plates (2). The output end of the second motor (9) extends through one of the mounting plates (2). The output end of the second motor (9) is connected to a second rotating rod (10), and a second gear (11) is mounted on the second rotating rod (10).

3. A medium-frequency induction furnace according to claim 2, characterized in that, The second gear (11) meshes with the first gear (12), which is mounted on one of the first rotating rods (5).

4. A medium-frequency induction furnace according to claim 1, characterized in that, The dustproof assembly includes two sets of lifting frames (13), which are respectively installed on two sets of mounting plates (2). One set of lifting frames (13) is rotatably connected with a threaded rod (14), and the other set of lifting frames (13) is equipped with a guide rod (15).

5. A medium-frequency induction furnace according to claim 4, characterized in that, A third motor (16) is mounted on the top of one of the lifting frames (13), and the output end of the third motor (16) is connected to a threaded rod (14).

6. A medium-frequency induction furnace according to claim 5, characterized in that, The dustproof assembly also includes a lifting plate (17), one end of which is threadedly connected to a threaded rod (14), and the other end of which is slidably connected to a guide rod (15). A connecting rod (18) is installed at the bottom of the lifting plate (17), and the connecting rod (18) is connected to a dust cover (19). The dust cover (19) is used to cover the induction furnace body (3).

7. A medium-frequency induction furnace according to claim 1, characterized in that, The support assembly includes two sets of support plates (20), both ends of which are arc-shaped structures. Multiple sets of spring columns (21) are installed at the bottom of each set of support plates (20), and support blocks (22) are installed at the bottom of each set of spring columns (21). The support blocks (22) are installed on the base plate (1).

Images