Electric arc furnace cover lifting and rotating mechanism

Abstract

The utility model relates to the technical field of electric arc furnace cover lifting mechanisms, in particular to an electric arc furnace cover lifting and rotating mechanism which comprises a fixing frame and a ring body, a rotating mechanism is installed on the ring wall of the ring body, and the rotating mechanism is formed by combining a fixing plate, a motor B, a rotating gear, an electric arc furnace cover body, a gear ring, a limiting rod and a ring groove. A fixing plate is welded to the ring wall of the ring body, a motor B is installed on the plate wall of the fixing plate through bolts, a rotating gear is installed at the output end of the motor B and penetrates through the ring body, a ring groove is formed in the ring inner wall of the ring body, and a gear ring is welded to the outer wall of the electric arc furnace cover body. And two sets of symmetrical limiting rods are welded to the cover wall of the electric arc furnace cover body, rotation of the electric arc furnace cover body is achieved, and therefore the electric arc furnace cover body can conveniently rotate to adjust the angle, and metal can be conveniently taken out of a furnace or other related operation can be conveniently carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of an electric arc furnace cover lifting mechanism, in particular to an electric arc furnace cover lifting and rotating mechanism. Background Technique

[0002] The main purpose of the electric arc furnace cover is to protect the high-temperature arc process in the furnace and ensure the smooth progress of the steelmaking process. The design and material selection of the electric arc furnace cover are crucial for ensuring the efficiency and safety of the steelmaking process. The cover is usually made of refractory materials, such as high-aluminum electric furnace cover precast blocks, which have high density, good thermal shock resistance and erosion resistance, and can greatly improve the service life of the cover. The shape of the cover is usually a circular arch to adapt to the high-temperature environment in the furnace and protect the arc process between the electrodes and the charge in the furnace.

[0003] When the electric arc furnace cover is lifted and rotated, it is usually lifted by hoisting. However, the electric arc furnace cover is prone to shaking during hoisting. Therefore, when closing the cover for the second time, it is easy to have an unstable cover closing. In addition, the existing electric arc furnace cover lifting and rotating mechanism cannot rotate synchronously during lifting, resulting in the cover being inconvenient to adjust the angle by rotation to facilitate taking out metal from the furnace or performing other related operations. For this reason, we propose an electric arc furnace cover lifting and rotating mechanism to facilitate the synchronous lifting and rotation of the electric arc furnace cover and make it convenient for personnel to use. Content of the Utility Model

[0004] In view of the problems in the prior art, the utility model provides an electric arc furnace cover lifting and rotating mechanism.

[0005] The technical solution adopted by the utility model to solve its technical problems is an electric arc furnace cover lifting and rotating mechanism, including a fixed frame and a ring body. A rotating mechanism is installed on the ring wall of the ring body. The rotating mechanism is composed of a fixed plate, a motor B, a rotating gear, an electric arc furnace cover main body, a toothed ring, a limiting rod and a ring groove. The fixed plate is welded on the ring wall of the ring body. The motor B is installed on the plate wall of the fixed plate through bolts. The output end of the motor B is installed with a rotating gear, and the rotating gear penetrates through the ring body. A ring groove is opened on the inner ring wall of the ring body. A toothed ring is welded on the outer wall of the electric arc furnace cover main body. The toothed ring is meshed with the rotating gear. Two groups of symmetric limiting rods are welded on the cover wall of the electric arc furnace cover main body. The other ends of the two groups of limiting rods are located in the ring groove.

[0006] By adopting the above technical solution, when rotating the main body of the electric arc furnace cover, since a rotating mechanism is installed at the ring wall of the ring body, the rotating mechanism is composed of a fixed plate, a motor B, a rotating gear, the main body of the electric arc furnace cover, a toothed ring, a limiting rod and a ring groove. By controlling the motor B through a controller, the motor B is made to drive the rotating gear at its output end to rotate. Since the rotating gear is meshed and connected with the toothed ring on the outer wall of the main body of the electric arc furnace cover, a ring groove is provided at the inner ring of the ring body, and the other end of the limiting rod on the outer wall of the main body of the electric arc furnace cover is located in the ring groove. Thus, when the rotating gear drives the toothed ring to rotate, the other end of the limiting rod rotates in the ring groove, realizing the rotation of the main body of the electric arc furnace cover, thereby facilitating the rotation of the main body of the electric arc furnace cover to adjust the angle, so as to take out metal from the furnace or perform other related operations.

[0007] Specifically, it further includes a lifting mechanism, and a lifting mechanism is installed on the wall of the fixed frame.

[0008] By adopting the above technical solution, the main body of the electric arc furnace cover can be lifted through the lifting mechanism.

[0009] Specifically, the lifting mechanism is composed of a motor A, a bevel gear A, a threaded rod, a cross plate A, a cross plate B, a bevel gear B and a vertical rod. A motor A is installed on the wall of the fixed frame, a bevel gear A is installed at the output end of the motor A, a threaded rod is rotatably connected to the wall of the fixed frame through a bearing, a bevel gear B is installed on the rod wall of the threaded rod, and the bevel gear B is meshed and connected with the bevel gear A. A cross plate A is welded to the ring wall of the ring body, the cross plate A is threadedly connected with the threaded rod, a cross plate B is welded to the ring wall of the ring body, and a vertical rod is welded to the wall of the fixed frame.

[0010] By adopting the above technical solution, when lifting the main body of the electric arc furnace cover, since a lifting mechanism is installed on the wall of the fixed frame, and the lifting mechanism is composed of a motor A, a bevel gear A, a threaded rod, a cross plate A, a cross plate B, a bevel gear B and a vertical rod. By controlling the motor A through a controller, the motor A is made to drive the bevel gear A at its output end to rotate. Since the bevel gear A is meshed and connected with the bevel gear B, the threaded rod is driven to rotate through the bevel gear B. Since the rod wall of the threaded rod is threadedly connected with the plate wall of the cross plate A, and the vertical rod penetrates through the cross plate B, when the threaded rod rotates, the cross plate A and the cross plate B drive the ring body to move. Since the main body of the electric arc furnace cover is located in the ring body, the movement and lifting of the main body of the electric arc furnace cover are realized, and the stable seal between the main body of the electric arc furnace cover and the electric arc furnace is achieved.

[0011] Specifically, the vertical rod penetrates through the cross plate B.

[0012] By adopting the above technical solution, the cross plate B can be limited by the vertical rod.

[0013] Specifically, a controller for controlling Motor A and Motor B is installed on the wall of the fixing frame.

[0014] By adopting the above technical solution, the controller can control Motor A and Motor B.

[0015] Advantages of the utility model:

[0016] (1) For the arc furnace cover lifting and rotating mechanism of the present utility model, when rotating the main body of the arc furnace cover, since a rotating mechanism is installed on the ring wall of the ring body, the rotating mechanism is composed of a fixing plate, Motor B, a rotating gear, the main body of the arc furnace cover, a toothed ring, a limiting rod and a ring groove. By controlling Motor B through the controller, the rotating gear at the output end of Motor B is driven to rotate. Since the rotating gear is meshed and connected with the toothed ring on the outer wall of the main body of the arc furnace cover, and a ring groove is provided at the inner ring of the ring body, the other end of the limiting rod on the outer wall of the main body of the arc furnace cover is located in the ring groove. Thus, when the rotating gear drives the toothed ring to rotate, the other end of the limiting rod rotates in the ring groove, realizing the rotation of the main body of the arc furnace cover, so as to conveniently rotate the main body of the arc furnace cover to adjust the angle, facilitating the removal of metal from the furnace or other related operations.

[0017] (2) For the arc furnace cover lifting and rotating mechanism of the present utility model, when lifting the main body of the arc furnace cover, since a lifting mechanism is installed on the wall of the fixing frame, the lifting mechanism is composed of Motor A, bevel gear A, a threaded rod, cross plate A, cross plate B, bevel gear B and a vertical rod. By controlling Motor A through the controller, the bevel gear A at the output end of Motor A is driven to rotate. Since bevel gear A is meshed and connected with bevel gear B, bevel gear B drives the threaded rod to rotate. Since the rod wall of the threaded rod is threadedly connected with the wall of cross plate A, and the vertical rod passes through cross plate B, when the threaded rod rotates, cross plate A and cross plate B drive the ring body to move. Since the main body of the arc furnace cover is located in the ring body, the movement and lifting of the main body of the arc furnace cover are realized, achieving a stable seal between the main body of the arc furnace cover and the arc furnace. Description of the Drawings

[0018] The present utility model will be further described below with reference to the drawings and embodiments.

[0019] Figure 1 It is the main view of the present utility model;

[0020] Figure 2 It is the structural schematic diagram of the rotating mechanism of the present utility model;

[0021] Figure 3 It is the structural schematic diagram of the lifting mechanism of the present utility model;

[0022] In the figure: 1, fixed frame; 2, lifting mechanism; 201, motor A; 202, bevel gear A; 203, threaded rod; 204, cross plate A; 205, cross plate B; 206, bevel gear B; 207, vertical rod; 3, controller; 4, ring body; 5, rotating mechanism; 501, fixed plate; 502, motor B; 503, rotating gear; 504, main body of electric arc furnace cover; 505, toothed ring; 506, limiting rod; 507, ring groove. Specific embodiments

[0023] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] As an embodiment of the present utility model, as Figure 1 、 Figure 2 and Figure 3 shown, a lifting and rotating mechanism for an electric arc furnace cover according to the present utility model includes a fixed frame 1 and a ring body 4. A rotating mechanism 5 is installed on the ring wall of the ring body 4. The rotating mechanism 5 is composed of a fixed plate 501, a motor B 502, a rotating gear 503, a main body of an electric arc furnace cover 504, a toothed ring 505, a limiting rod 506 and a ring groove 507. The fixed plate 501 is welded to the ring wall of the ring body 4. The motor B 502 is installed on the plate wall of the fixed plate 501 through bolts. The output end of the motor B 502 is provided with the rotating gear 503, and the rotating gear 503 penetrates the ring body 4. A ring groove 507 is opened on the inner ring wall of the ring body 4. A toothed ring 505 is welded to the outer wall of the main body of the electric arc furnace cover 504. The toothed ring 505 is meshed with the rotating gear 503. Two groups of symmetric limiting rods 506 are welded to the cover wall of the main body of the electric arc furnace cover 504. The other ends of the two groups of limiting rods 506 are located in the ring groove 507.

[0025] During use, when rotating the main body 504 of the electric arc furnace cover, since the rotating mechanism 5 is installed on the ring wall of the ring body 4, and the rotating mechanism 5 is composed of a fixed plate 501, a motor B 502, a rotating gear 503, a main body of an electric arc furnace cover 504, a toothed ring 505, a limiting rod 506 and a ring groove, the motor B 502 is controlled by the controller 3, so that the motor B 502 drives the rotating gear 503 at its output end to rotate. Since the rotating gear 503 is meshed with the toothed ring 505 on the outer wall of the main body 504 of the electric arc furnace cover, a ring groove 507 is opened on the inner ring of the ring body 4, and the other ends of the limiting rods 506 on the outer wall of the main body 504 of the electric arc furnace cover are located in the ring groove 507. When the rotating gear 503 drives the toothed ring 505 to rotate, the other ends of the limiting rods 506 rotate in the ring groove 507, realizing the rotation of the main body 504 of the electric arc furnace cover, so as to conveniently rotate the main body 504 of the electric arc furnace cover to adjust the angle, so as to take out the metal from the furnace or perform other related operations.

[0026] As shown in Figure 1 FIG. , it further includes a lifting mechanism 2, and the lifting mechanism 2 is installed at the wall of the fixed frame 1.

[0027] During use, the main body 504 of the electric arc furnace cover can be lifted by the lifting mechanism 2.

[0028] As shown in Figure 1 and Figure 3 FIGS. and , the lifting mechanism 2 is composed of a motor A 201, a bevel gear A 202, a threaded rod 203, a cross plate A 204, a cross plate B 205, a bevel gear B 206 and a vertical rod 207. The motor A 201 is installed at the wall of the fixed frame 1, the output end of the motor A 201 is installed with the bevel gear A 202, the threaded rod 203 is rotatably connected to the wall of the fixed frame 1 through a bearing, the bevel gear B 206 is installed on the rod wall of the threaded rod 203, and the bevel gear B 206 is meshed with the bevel gear A 202. The cross plate A 204 is welded to the ring wall of the ring body 4, the cross plate A 204 is threadedly connected to the threaded rod 203, the cross plate B 205 is welded to the ring wall of the ring body 4, and the vertical rod 207 is welded to the wall of the fixed frame 1.

[0029] During use, when lifting the main body 504 of the electric arc furnace cover, since the lifting mechanism 2 is installed at the wall of the fixed frame 1, and the lifting mechanism 2 is composed of a motor A 201, a bevel gear A 202, a threaded rod 203, a cross plate A 204, a cross plate B 205, a bevel gear B 206 and a vertical rod 207, the motor A 201 is controlled by the controller 3, so that the motor A 201 drives the bevel gear A 202 at its output end to rotate. Since the bevel gear A 202 is meshed with the bevel gear B 206, the threaded rod 203 is driven to rotate by the bevel gear B 206. Since the rod wall of the threaded rod 203 is threadedly connected to the plate wall of the cross plate A 204, and the vertical rod 207 penetrates through the cross plate B 205, when the threaded rod 203 rotates, the cross plate A 204 and the cross plate B 205 drive the ring body 4 to move. Since the main body 504 of the electric arc furnace cover is located in the ring body 4, the movement and lifting of the main body 504 of the electric arc furnace cover are realized, and the stable seal between the main body 504 of the electric arc furnace cover and the electric arc furnace is realized.

[0030] As shown in Figure 1 FIG. , the vertical rod 207 penetrates through the cross plate B 205.

[0031] During use, the cross plate B 205 can be limited by the vertical rod 207.

[0032] As shown in Figure 1 FIG. , the controller 3 for controlling the motor A 201 and the motor B 502 is installed at the wall of the fixed frame 1.

[0033] During use, the motor A201 and the motor B502 can be controlled by the controller 3.

[0034] During the use of the present utility model, when the main body 504 of the electric arc furnace cover is rotated, since the rotating mechanism 5 is installed at the ring wall of the ring body 4, the rotating mechanism 5 is composed of a fixing plate 501, a motor B502, a rotating gear 503, the main body 504 of the electric arc furnace cover, a toothed ring 505, a limiting rod 506 and a ring groove 507. By controlling the motor B502 through the controller 3, the rotating gear 503 at the output end of the motor B502 is driven to rotate. Since the rotating gear 503 is meshed and connected with the toothed ring 505 at the outer wall of the main body 504 of the electric arc furnace cover, a ring groove 507 is formed at the inner ring of the ring body 4, and the other end of the limiting rod 506 at the outer wall of the main body 504 of the electric arc furnace cover is located in the ring groove 507. Therefore, when the rotating gear 503 drives the toothed ring 505 to rotate, the other end of the limiting rod 506 rotates in the ring groove 507, realizing the rotation of the main body 504 of the electric arc furnace cover, so as to facilitate the rotation of the main body 504 of the electric arc furnace cover to adjust the angle, so as to take out the metal from the furnace or perform other related operations. When the main body 504 of the electric arc furnace cover is lifted, since the lifting mechanism 2 is installed at the frame wall of the fixing frame 1, the lifting mechanism 2 is composed of a motor A201, a bevel gear A202, a threaded rod 203, a cross plate A204, a cross plate B205, a bevel gear B206 and a vertical rod 207. By controlling the motor A201 through the controller 3, the bevel gear A202 at the output end of the motor A201 is driven to rotate. Since the bevel gear A202 is meshed and connected with the bevel gear B206, the threaded rod 203 is driven to rotate by the bevel gear B206. Since the rod wall of the threaded rod 203 is threadedly connected with the plate wall of the cross plate A204, and the vertical rod 207 penetrates through the cross plate B205, when the threaded rod 203 rotates, the cross plate A204 and the cross plate B205 drive the ring body 4 to move. Since the main body 504 of the electric arc furnace cover is located in the ring body 4, the movement and lifting of the main body 504 of the electric arc furnace cover are realized, and the stable sealing between the main body 504 of the electric arc furnace cover and the electric arc furnace is realized.

[0035] The controller is an electric control box, and a Siemens PLC control unit is arranged inside. A touch screen is arranged on the door panel, and the output end of the touch screen is electrically connected with the input end of the PLC control unit. The input ends of the motor A and the motor B are electrically connected with the output end of the Siemens PLC controller, realizing the control of the motor A and the motor B.

[0036] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of protection required by the present utility model. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An arc furnace cover lifting and rotating mechanism, characterized in that: The invention comprises a fixing frame (1) and a ring body (4), wherein a rotating mechanism (5) is installed on the ring wall of the ring body (4), wherein the rotating mechanism (5) is composed of a fixing plate (501), a motor B (502), a rotating gear (503), an arc furnace cover body (504), a gear ring (505), a limiting rod (506) and a ring groove (507), wherein a fixing plate (501) is welded on the ring wall of the ring body (4), and a motor B (502) is installed on the plate wall of the fixing plate (501) by bolts, and the ... A rotating gear (503) is installed at the output end of the electric arc furnace cover (502), and the rotating gear (503) passes through the ring body (4), and an annular groove (507) is provided on the inner wall of the ring body (4). A gear ring (505) is welded on the outer wall of the electric arc furnace cover body (504), and the gear ring (505) is meshed with the rotating gear (503). Two groups of symmetrical limiting rods (506) are welded on the cover wall of the electric arc furnace cover body (504), and the other ends of the two groups of limiting rods (506) are located in the annular groove (507).

2. The electric arc furnace roof lifting and rotating mechanism according to claim 1, characterized in that: It also comprises a lifting mechanism (2), and the lifting mechanism (2) is installed on the frame wall of the fixed frame (1).

3. The arc furnace cover lifting and rotating mechanism according to claim 2, characterized in that: The lifting mechanism (2) is composed of a motor A (201), a bevel gear A (202), a threaded rod (203), a horizontal plate A (204), a horizontal plate B (205), a bevel gear B (206) and a vertical rod (207). The motor A (201) is installed on the wall of the fixed frame (1), and the output end of the motor A (201) is installed with a bevel gear A (202). The wall of the fixed frame (1) is rotatably connected to a threaded rod (203) via a bearing. A rod (203), a bevel gear B (206) is installed on the rod wall of the threaded rod (203), and the bevel gear B (206) is meshed with the bevel gear A (202); a horizontal plate A (204) is welded on the ring wall of the ring body (4), and the horizontal plate A (204) is threadedly connected to the threaded rod (203); a horizontal plate B (205) is welded on the ring wall of the ring body (4); and a vertical rod (207) is welded on the frame wall of the fixed frame (1).

4. The arc furnace roof lifting and rotating mechanism according to claim 3, characterized in that: The vertical rod (207) passes through the horizontal plate B (205).

5. The arc furnace roof lifting and rotating mechanism according to claim 1, characterized in that: A controller (3) for controlling the motor A (201) and the motor B (502) is installed on the wall of the fixed frame (1).

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