Telescopic electromagnetic stirring device for continuous casting

Abstract

The invention belongs to the technical field of continuous casting, and particularly relates to a telescopic electromagnetic stirring device for continuous casting, which comprises a base, the top of the base is provided with an adjusting mechanism and a placing plate, and the top of the placing plate is provided with a stirrer body; the adjusting mechanism is provided with an air cylinder and a limiting plate, a limiting groove is formed in the limiting plate, the containing plate slides in the limiting groove, the air cylinder is located at the bottom of the limiting plate, and the air cylinder is driven to drive the limiting plate to move, so that the position of the limiting plate is adjusted; a base is mounted at the top of the placement plate, a double-shaft motor is mounted in the base, threaded rods are mounted on output shafts on two sides of the double-shaft motor, sliding sleeves are arranged outside the threaded rods, fixing blocks are mounted at the tops of the sliding sleeves, extension rods are mounted at the tops of the fixing blocks, a transverse plate is connected to the tops of the extension rods, and a stirrer body is arranged on the transverse plate; the position of the stirrer body is adjusted through the double-shaft motor; and the adjusting mechanism is arranged, and all structures of the adjusting mechanism are matched with one another, so that casting blanks with different sizes can be better adapted.

Description

Technical Field

[0001] The invention belongs to the technical field of continuous casting, and in particular relates to a telescopic electromagnetic stirring device for continuous casting. Background Art

[0002] Continuous casting refers to the process of directly obtaining ingots by pouring, condensing and cutting liquid steel using a continuous casting machine. It is the intermediate link between steelmaking and steel rolling. The normality of continuous casting production directly affects the quality and yield rate of rolled products.

[0003] In the process of metallurgical continuous casting, electromagnetic stirring devices are often needed to improve metallurgical quality. The essence of electromagnetic stirring is to use the electromagnetic force induced in the liquid phase hole of the ingot to strengthen the movement of molten steel in the liquid phase hole, thereby strengthening the convection, heat transfer and mass transfer process of the molten steel, thereby controlling the solidification process of the ingot.

[0004] The traditional electromagnetic stirring device is a coil installed on the iron core, which stirs the liquid metal under the action of magnetic force, but it generates a single rotating magnetic field, the stirring capacity is limited, and the effect on the melt inside the ingot is insufficient. At the same time, the existing electromagnetic stirring device can only electromagnetically stir a single metal, a column or a plate, and has poor flexibility in use, which greatly reduces the use effect of the electromagnetic stirring device. Therefore, a telescopic electromagnetic stirring device for continuous casting is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a telescopic electromagnetic stirring device for continuous casting.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a telescopic electromagnetic stirring device for continuous casting, comprising a base, a regulating mechanism and a placement plate are arranged on the top of the base, and a stirrer body is arranged on the top of the placement plate;

[0007] The adjustment mechanism is provided with a cylinder and a limit plate. The limit plate is provided with a limit groove. The placement plate slides in the limit groove. The cylinder is located at the bottom of the limit plate. The limit plate is driven to move by the cylinder, thereby adjusting the position of the limit plate.

[0008] A base is installed on the top of the placement plate, a dual-axis motor is installed in the base, threaded rods are installed on both sides of the output shaft of the dual-axis motor, a sliding sleeve is provided on the outside of the threaded rod, a fixed block is installed on the top of the sliding sleeve, an extension rod is installed on the top of the fixed block, a cross plate is connected to the top of the extension rod, a stirrer body is arranged on the cross plate, and the position of the stirrer body is adjusted by the dual-axis motor.

[0009] Specifically, a positioning rod is provided on the stirrer body, a plurality of slots are provided on the positioning rod, a clamping block is installed on the transverse plate, a limit spring is installed on the clamping block, and the limit spring is sleeved on the outside of the pull rod.

[0010] Specifically, a baffle is installed on the outer side of the top of the placement plate, an electromagnet is fixedly installed on the baffle, a return spring is connected to the outside of the electromagnet, a connecting block is fixedly installed on the side of the return spring away from the electromagnet, and the connecting block is installed on the positioning rod. By driving the electromagnet to cut off power, the return spring pushes the positioning rod to move.

[0011] Specifically, an electromagnetic core is fixedly installed inside the stirrer body, and a coil is arranged outside the electromagnetic core.

[0012] Specifically, a universal wheel is movably mounted on the bottom of the base, and positioning rods are connected to opposite sides of the stirrer body.

[0013] Specifically, two groups of heat dissipation fins are fixedly installed inside the agitator body, and opposite sides of the two groups of heat dissipation fins are respectively connected to the inner top wall and the inner bottom wall of the agitator body.

[0014] The present invention has the following beneficial effects:

[0015] 1) By setting a base to limit the placement plate, by setting a stirrer body, two groups of stirrer bodies work together to better stir the molten steel, and by setting an adjustment mechanism, the various structures of the adjustment mechanism cooperate with each other to ensure that the stirrer body is adjusted to a suitable position, so as to better adapt to billets of different sizes;

[0016] 2) By setting a cylinder, the controller drives the cylinder to start and drive the placement plate to rise and fall, so as to achieve the purpose of adjusting the height of the placement plate, so as to better adapt to the ingots of different heights. During the process of lifting and lowering the placement plate, it will slide inside the limit groove of the limit plate, so as to ensure that the placement plate is more stable;

[0017] 3) By setting a base to limit the dual-axis motor, the controller drives the dual-axis motor to start and drive the two threaded rods to rotate, so that the sleeve drives the extension rod and the two cross plates to move in relative or opposite directions through the fixed block on the top, thereby adjusting the position of the two sets of agitator bodies. The pull rod is limited by setting a limit spring. When the length of the two sets of agitator bodies needs to be adjusted, the controller drives the electromagnet to cut off the power. At this time, the reset spring pushes the positioning rods on both sides to move in relative directions. When the appropriate length is reached, the pull rod is released to allow the block to be inserted into the slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view schematic diagram of the present invention;

[0019] Figure 2 It is a partial three-dimensional schematic diagram of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the local adjustment mechanism of the present invention;

[0021] Figure 4 It is a partial side view schematic diagram of the present invention;

[0022] Figure 5 It is a partial cross-sectional schematic diagram of the present invention.

[0023] In the figure: 1-base; 2-placing plate; 3-agitator body; 4-adjusting mechanism; 401-cylinder; 402-limiting plate; 403-base; 404-dual-axis motor; 405-threaded rod; 406-sleeve; 407-fixing block; 408-extension rod; 409-cross plate; 410-limiting spring; 411-pull rod; 412-block; 413-baffle; 414-electromagnet; 415-reset spring; 416-connecting block; 5-universal wheel; 6-positioning rod; 7-electromagnetic core; 8-coil; 9-heat sink fin; 10-slot. DETAILED DESCRIPTION

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] like Figure 1-5 As shown, a telescopic electromagnetic stirring device for continuous casting comprises a base 1, a placing plate 2 is arranged on the top of the base 1, a stirrer body 3 is arranged on the top of the placing plate 2, and an adjusting mechanism 4 is arranged on the top of the base 1;

[0026] A cylinder 401 is fixedly installed on the top of the base 1, a limit plate 402 is fixedly installed on the top of the base 1, a base 403 is fixedly installed on the top of the placement plate 2, a dual-axis motor 404 is installed inside the base 403, threaded rods 405 are installed at the front and rear output shafts of the dual-axis motor 404, a sliding sleeve 406 is arranged outside the threaded rod 405, a fixed block 407 is installed on the top of the sliding sleeve 406, an extension rod 408 is installed on the top of the fixed block 407, and the extension rod 408 is installed on the top of the extension rod 408. A horizontal plate 409 is connected to the top, a limit spring 410 is installed inside the horizontal plate 409, a pull rod 411 is installed on the top of the horizontal plate 409, a clamping block 412 is connected to the bottom of the pull rod 411, two baffles 413 are installed on the top of the placement plate 2, electromagnets 414 are fixedly installed on opposite sides of the two baffles 413, a return spring 415 is connected to the outside of the electromagnet 414, and a connecting block 416 is fixedly installed on the side of the return spring 415 away from the electromagnet 414.

[0027] like Figure 1-4A universal wheel 5 is movably installed at the bottom of the base 1, and there are two groups of agitator bodies 3. The opposite sides of the two groups of agitator bodies 3 are connected with positioning rods 6, and the number of positioning rods 6 of the two groups of agitator bodies 3 is not less than five; a card slot 10 is opened inside the positioning rod 6, and a card block 412 extends to the inside of the card slot 10 away from the side of the pull rod 411. The limit spring 410 is sleeved on the outside of the pull rod 411, and the opposite sides of the two groups of positioning rods 6 are respectively connected to the opposite sides of the two groups of agitator bodies 3. The pull rod 411 is limited by setting the limit spring 410. When it is necessary to adjust the length of the two groups of agitator bodies 3, the controller drives the electromagnet 414 to cut off the power. At this time, the reset spring 415 pushes the positioning rods 6 on both sides to move in relative directions. When the appropriate length is reached, the pull rod 411 is released to allow the card block 412 to be inserted into the card slot 10.

[0028] By setting up the adjustment mechanism 4, the various structures of the adjustment mechanism 4 cooperate with each other to ensure that the agitator body 3 is adjusted to a suitable position, so as to better adapt to the ingots of different sizes. There are two cylinders 401, and the tops of the two cylinders 401 are interconnected with the bottom of the placement plate 2, and the opposite sides of the two limit plates 402 are provided with sliding grooves.

[0029] The left and right sides of the placement plate 2 extend to the inside of the two slide grooves respectively. There are two bases 403. The tops of the two bases 403 are provided with sliding openings. Four sliding sleeves 406 are respectively connected to four fixed blocks 407. The dual-axis motor 404 is limited by setting the base 403. The controller drives the dual-axis motor 404 to start and drive the two threaded rods 405 to rotate.

[0030] The four extension rods 408 are divided into two groups, each group of extension rods 408 has two extension rods, and the number of cross plates 409 is two. The tops of the two groups of extension rods 408 are respectively connected to the bottoms of the two cross plates 409. The controller drives the dual-axis motor 404 to start and drive the two threaded rods 405 to rotate, so that the sliding sleeve 406 drives the extension rods 408 and the two cross plates 409 to move in relative or opposite directions through the fixed block 407 on the top, thereby adjusting the positions of the two groups of agitator bodies 3.

[0031] like Figure 3 and 4 The two groups of positioning rods 6 penetrate the two horizontal plates 409 respectively, and the opposite sides of the two groups of return springs 415 are connected to the opposite sides of the two groups of electromagnets 414 respectively.

[0032] like Figure 1 and 5 An electromagnetic core 7 is fixedly installed inside the stirrer body 3, and a coil 8 is arranged outside the electromagnetic core 7.

[0033] like Figure 1 and3 Two groups of heat dissipation fins 9 are fixedly installed inside the agitator body 3, and the opposite sides of the two groups of heat dissipation fins 9 are respectively connected to the inner top wall and the inner bottom wall of the agitator body 3.

[0034] In summary, by setting the cylinder 401, the controller drives the cylinder 401 to start and drive the placement plate 2 to rise and fall, thereby achieving the purpose of adjusting the height of the placement plate 2, so as to better adapt to the ingots of different heights. During the lifting and lowering process of the placement plate 2, it will slide inside the limit groove of the limit plate 402, thereby ensuring that the placement plate 2 is more stable. By setting the base 403 to limit the dual-axis motor 404, the controller drives the dual-axis motor 404 to start and drive the two threaded rods 405 to rotate, so that the sliding sleeve 406 drives the extension rod 408 and the two cross plates 409 to move in relative or opposite directions through the top fixed block 407, thereby adjusting the position of the two groups of agitator bodies 3. The limit spring 410 is set to limit the pull rod 411. When it is necessary to adjust the length of the two groups of agitator bodies 3, the controller drives the electromagnet 414 to cut off the power. At this time, the reset spring 415 pushes the positioning rods 6 on both sides to move in relative directions. When the appropriate length is reached, the pull rod 411 is released to allow the block 412 to be inserted into the slot 10.

[0035] Method of use of the present invention:

[0036] First, the controller drives the cylinder 401 to telescope and adjust the placement plate 2 to a suitable height. At this time, the controller drives the dual-axis motor 404 to start, which can drive the two threaded rods 405 to rotate, so that the sliding sleeve 406 drives the extension rod 408 and the two cross plates 409 to move in relative or opposite directions through the top fixed block 407, thereby adjusting the positions of the two sets of agitator bodies 3 to facilitate the adaptation of ingots of different sizes. Then the controller drives the electromagnet 414 to cut off the power. At this time, the reset spring 415 pushes the positioning rods 6 on both sides to move in relative directions. When it reaches the appropriate length, release the pull rod 411 to allow the block 412 to be inserted into the slot 10. When the agitator body 3 is fixed and stable, the controller drives the coil 8 to energize, and a traveling wave magnetic field will be generated around the electromagnetic core 7 and the coil 8. This magnetic field can act on the metal solution to generate induced potential and current in the metal solution. This induced current and the magnetic field generate electromagnetic force, thereby promoting the directional flow of the metal solution to achieve a stirring effect.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic electromagnetic stirring device for continuous casting, characterized in that: It comprises a base, the top of which is provided with an adjustment mechanism and a placement plate, and the top of which is provided with a stirrer body; The adjustment mechanism is provided with a cylinder and a limit plate. The limit plate is provided with a limit groove. The placement plate slides in the limit groove. The cylinder is located at the bottom of the limit plate. The limit plate is driven to move by the cylinder, thereby adjusting the position of the limit plate. A base is installed on the top of the placement plate, a dual-axis motor is installed in the base, threaded rods are installed on both sides of the output shaft of the dual-axis motor, a sliding sleeve is provided on the outside of the threaded rod, a fixed block is installed on the top of the sliding sleeve, an extension rod is installed on the top of the fixed block, a cross plate is connected to the top of the extension rod, a stirrer body is arranged on the cross plate, and the position of the stirrer body is adjusted by the dual-axis motor.

2. A telescopic electromagnetic stirring device for continuous casting according to claim 1, characterized in that: The stirrer body is provided with a positioning rod, the positioning rod is provided with a plurality of slots, a clamping block is installed on the transverse plate, a limiting spring is installed on the clamping block, and the limiting spring is sleeved on the outside of the pull rod.

3. A telescopic electromagnetic stirring device for continuous casting according to claim 1, characterized in that: A baffle is installed on the outer side of the top of the placement plate, an electromagnet is fixedly installed on the baffle, a return spring is connected to the outside of the electromagnet, a connecting block is fixedly installed on the side of the return spring away from the electromagnet, the connecting block is installed on the positioning rod, and the return spring pushes the positioning rod to move by driving the electromagnet to cut off power.

4. A telescopic electromagnetic stirring device for continuous casting according to claim 2, characterized in that: An electromagnetic core is fixedly installed inside the stirrer body, and a coil is arranged outside the electromagnetic core.

5. The telescopic electromagnetic stirring device for continuous casting according to claim 1, characterized in that: A universal wheel is movably mounted on the bottom of the base, and positioning rods are connected to opposite sides of the stirrer body.

6. A telescopic electromagnetic stirring device for continuous casting according to claim 3, characterized in that: Two groups of heat dissipation fins are fixedly installed inside the agitator body, and opposite sides of the two groups of heat dissipation fins are respectively connected to the inner top wall and the inner bottom wall of the agitator body.

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