Tilting mechanism locking device of electric arc furnace

Abstract

The utility model discloses an electric arc furnace tilting mechanism locking device which comprises a base, an electric arc furnace and a limiting mechanism, the electric arc furnace is installed in the base, the limiting mechanism is arranged at the joint of the base and the electric arc furnace, and the limiting mechanism comprises a tilting frame, a through groove, a motor, a lead screw and an arc-shaped clamping block. Tilting frames are installed on the two sides of the surface of the electric arc furnace, the electric arc furnace is connected with the base through the tilting frames, a motor is controlled to operate in the electric arc furnace dumping process, the power end of the motor drives an arc-shaped clamping block to move through a lead screw, the arc-shaped clamping block is attached to the ends of the tilting frames, the tilting frames are limited, and then the pressure of the electric arc furnace is shared; stress of the hydraulic assembly is reduced, the electric arc furnace dumping process is more stable, and meanwhile the hydraulic assembly is more durable.

Description

Technical Field

[0001] The utility model relates to the technical field of electric arc furnace components, in particular to a locking device for a tilting mechanism of an electric arc furnace. Background Art

[0002] An electric arc furnace is an electric furnace that uses the high temperature generated by the electrode arc to melt ores and metals. When the gas discharge forms an arc, the energy is very concentrated, and the temperature in the arc zone is above 3000℃. For melting metals, the electric arc furnace has greater process flexibility than other steelmaking furnaces, can effectively remove impurities such as sulfur and phosphorus, the furnace temperature is easy to control, the equipment occupies a small area, is suitable for the melting of high-quality alloy steel, and is widely used.

[0003] The existing electric arc furnace discharging process has the following drawbacks: the tilting process of the electric arc furnace is generally carried out by driving the furnace body to deflect through a hydraulic component. During the discharging process, due to the heavy weight of the furnace body and the materials inside it, there is a lack of locking components at the inclination position of the furnace body. The hydraulic components located on the side of the furnace body are subjected to greater force, are easily worn, require frequent maintenance, and have a short lifespan. For this reason, we propose a locking device for the tilting mechanism of the electric arc furnace. Utility Model Content

[0004] The main purpose of the utility model is to provide a locking device for the tilting mechanism of an electric arc furnace. By means of a limiting mechanism arranged between a base and the electric arc furnace, it can assist in fixing the angle of the electric arc furnace during the tilting process, reduce the stress on the hydraulic components, and effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A locking device for a tilting mechanism of an electric arc furnace comprises a base, an electric arc furnace and a limiting mechanism, wherein the electric arc furnace is installed inside the base and the limiting mechanism is arranged at the connection between the base and the electric arc furnace, the limiting mechanism comprises a tilting frame, a through slot, a motor, a screw and an arc-shaped clamping block, tilting frames are installed on both sides of the surface of the electric arc furnace and are connected to the base through the tilting frames, a screw located inside the through slot is installed at the power output end of the motor, and the motor is movably connected to an arc-shaped clamping block located on the top of the base and limiting the deflection angle of the tilting frame through the screw.

[0007] Furthermore, it also includes a protective mechanism, which is arranged on the periphery of the motor, and the protective mechanism includes a protective cover and a copper coil. A protective cover is installed on one side of the base and the motor is installed inside the protective cover. A copper coil is arranged on the periphery of the motor and the outer wall of the motor fits the surface of the copper coil. The protective cover is installed on the periphery of the motor to protect the motor and prevent the molten metal from contacting the motor during the discharge process of the electric arc furnace. At the same time, a copper coil is arranged on the periphery of the motor, which can be connected to an external cooling water inlet and outlet device, and the circulating cooling water is used to cool the motor during the working process.

[0008] Furthermore, a hydraulic cylinder is installed at one end between the bottom of the base, and a rotating shaft is installed between the power output end of the hydraulic cylinder and the side of the electric arc furnace; the power end of the hydraulic cylinder assembly is extended and retracted to drive the deflection of the electric arc furnace, and the rotating shaft plays a connecting role at the connection.

[0009] Furthermore, a ball nut is mounted on the outer periphery of the screw rod, and the screw rod is connected to the arc-shaped clamping block through the ball nut; the screw rod rotates under the action of the motor, and the ball nut on the outer periphery moves horizontally to drive the displacement of the arc-shaped clamping block.

[0010] Furthermore, a water inlet pipe connected to the copper coil is installed on the top of the protective cover, and a drain pipe connected to the copper coil is installed on the bottom of the protective cover; water is supplied to the inside of the copper coil through the water inlet pipe, and water is recovered through the drain pipe.

[0011] Compared with the prior art, the utility model has the following beneficial effects: metal smelting is carried out inside the electric arc furnace, and during the dumping process, the power end of the hydraulic cylinder lifts one end of the electric arc furnace, so that the electric arc furnace drives the tilting frame to deflect to dump the materials, and the motor is controlled to run during the dumping process of the electric arc furnace, and the power end of the motor drives the movement of the arc block through the screw rod, so that the arc block fits to the end of the tilting frame, which limits the tilting frame and thus shares the pressure of the electric arc furnace, reduces the stress on the hydraulic component, and makes the dumping process of the electric arc furnace more stable while the hydraulic component is more durable; the protective cover installed on the periphery of the motor can protect the motor, and prevent the molten metal from contacting the motor during the discharge process of the electric arc furnace. At the same time, a copper coil is provided on the periphery of the motor, which can be connected to the external cooling water inlet and outlet equipment, and the circulating cooling water is used to cool the motor during the working process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic diagram of the overall structure of a locking device for a tilting mechanism of an electric arc furnace.

[0013] Figure 2 The utility model is a schematic diagram of the internal structure of a base of a locking device for a tilting mechanism of an electric arc furnace.

[0014] Figure 3 The utility model is a schematic diagram of the internal structure of a protective cover of a locking device of a tilting mechanism of an electric arc furnace.

[0015] In the figure: 1, base; 2, electric arc furnace; 3, limit mechanism; 301, hydraulic cylinder; 302, rotating shaft; 303, tilting frame; 304, through slot; 305, motor; 306, screw rod; 307, ball nut; 308, arc block; 4, protection mechanism; 401, protection cover; 402, copper coil; 403, water inlet pipe; 404, drain pipe. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0017] like Figure 1-3 As shown, a locking device for a tilting mechanism of an electric arc furnace comprises a base 1, an electric arc furnace 2 and a limiting mechanism 3, the electric arc furnace 2 is installed inside the base 1 and the limiting mechanism 3 is arranged at the connection between the base 1 and the electric arc furnace 2, the limiting mechanism 3 comprises a tilting frame 303, a through slot 304, a motor 305, a screw 306 and an arc-shaped clamping block 308, tilting frames 303 are installed on both sides of the surface of the electric arc furnace 2 and are connected to the base 1 through the tilting frames 303, a screw 306 located inside the through slot 304 is installed at the power output end of the motor 305, and the motor 305 is movably connected to an arc-shaped clamping block 308 located on the top of the base 1 for limiting the deflection angle of the tilting frame 303 through the screw 306.

[0018] Among them, it also includes a protection mechanism 4, the protection mechanism 4 is arranged on the periphery of the motor 305, the protection mechanism 4 includes a protection cover 401 and a copper coil 402, the protection cover 401 is installed on one side of the base 1 and the motor 305 is installed inside the protection cover 401, the copper coil 402 is arranged on the periphery of the motor 305 and the outer wall of the motor 305 fits the surface of the copper coil 402; the protection cover 401 is installed on the periphery of the motor 305 to protect the motor 305, and prevents the molten metal from contacting the motor 305 during the discharge process of the electric arc furnace 2. At the same time, the copper coil 402 is arranged on the periphery of the motor 305, which can be connected to the external cooling water inlet and outlet equipment, and the circulating cooling water is used to cool the motor 305 during the working process.

[0019] Among them, a hydraulic cylinder 301 is installed at one end between the bottom of the base 1, and a rotating shaft 302 is installed between the power output end of the hydraulic cylinder 301 and the side of the electric arc furnace 2. A ball nut 307 is installed on the periphery of the screw rod 306, and the screw rod 306 is connected to the arc block 308 through the ball nut 307; the power end of the hydraulic cylinder 301 assembly is telescopic to drive the deflection of the arc furnace 2, and the rotating shaft 302 plays a connecting role at the connection. The screw rod 306 rotates under the action of the motor 305, and its outer peripheral ball nut 307 moves horizontally to drive the displacement of the arc block 308.

[0020] Among them, a water inlet pipe 403 connected to the copper coil 402 is installed on the top of the protective cover 401, and a drain pipe 404 connected to the copper coil 402 is installed at the bottom of the protective cover 401; water is supplied to the inside of the copper coil 402 through the water inlet pipe 403, and water is recovered through the drain pipe 404.

[0021] It should be noted that the utility model is a locking device for the tilting mechanism of an electric arc furnace. When working, metal is smelted inside the electric arc furnace 2. During the dumping process, the power end of the hydraulic cylinder 301 lifts one end of the electric arc furnace 2, so that the electric arc furnace 2 drives the tilting frame 303 to deflect and dump the material. During the dumping process of the electric arc furnace 2, the motor 305 is controlled to run. The power end of the motor 305 drives the movement of the arc block 308 through the screw rod 306, so that the arc block 308 is attached to the end of the tilting frame 303, and the tilting frame 303 is activated. The protective cover 401 is installed on the periphery of the motor 305 to protect the motor 305 and prevent the molten metal from contacting the motor 305 during the discharge process of the arc furnace 2. At the same time, a copper coil 402 is provided on the periphery of the motor 305 to connect to the external cooling water inlet and outlet equipment, and the circulating cooling water is used to cool the motor 305 during the working process.

[0022] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A locking device for a tilting mechanism of an electric arc furnace, comprising a base (1), characterized in that: The electric arc furnace (2) and a limiting mechanism (3) are also included. The electric arc furnace (2) is installed inside the base (1), and the limiting mechanism (3) is arranged at the connection between the base (1) and the electric arc furnace (2). The limiting mechanism (3) comprises a tilting frame (303), a through slot (304), a motor (305), a screw rod (306) and an arc-shaped clamping block (308). The tilting frames (303) are installed on both sides of the surface of the electric arc furnace (2) and are connected to the base (1) through the tilting frames (303). The power output end of the motor (305) is installed with a screw rod (306) located inside the through slot (304), and the motor (305) is movably connected to an arc-shaped clamping block (308) located at the top of the base (1) and limiting the deflection angle of the tilting frame (303) through the screw rod (306).

2. The locking device for the tilting mechanism of an electric arc furnace according to claim 1, characterized in that: The invention also comprises a protective mechanism (4), wherein the protective mechanism (4) is arranged on the periphery of the motor (305), and the protective mechanism (4) comprises a protective cover (401) and a copper coil (402). The protective cover (401) is installed on one side of the base (1) and the motor (305) is installed inside the protective cover (401). The copper coil (402) is arranged on the periphery of the motor (305), and the outer wall of the motor (305) is in contact with the surface of the copper coil (402).

3. The locking device for the tilting mechanism of an electric arc furnace according to claim 1, characterized in that: A hydraulic cylinder (301) is installed at one end of the bottom of the base (1), and a rotating shaft (302) is installed between the power output end of the hydraulic cylinder (301) and the side of the electric arc furnace (2).

4. The tilting mechanism locking device of an electric arc furnace according to claim 1, characterized in that: A ball nut (307) is mounted on the outer periphery of the screw rod (306), and the screw rod (306) is connected to the arc-shaped clamping block (308) via the ball nut (307).

5. The locking device for the tilting mechanism of an electric arc furnace according to claim 2, characterized in that: A water inlet pipe (403) connected to the copper coil (402) is installed on the top of the protective cover (401), and a drainage pipe (404) connected to the copper coil (402) is installed on the bottom of the protective cover (401).

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