An online magnetic field testing device for a roller-type electromagnetic stirrer

Abstract

The present invention discloses an online magnetic field testing device for a roller electromagnetic stirrer, comprising an adjustment plate, wherein both ends of the adjustment plate are provided with a bolt fastener 1, and both sides of the top of the adjustment plate are provided with a waist-shaped groove, the top of the waist-shaped groove is slidably connected to a connecting rod on the same side, the connecting rod is connected to the arc-shaped plate on the same side through a bolt fastener 2 and a sliding pin on the same side, and the sliding pin is fixedly connected to the sliding grooves at both ends of the connecting plate through a baffle and a bolt fastener 3 on the same side. The present invention installs a Gauss meter probe on a measuring device, enters a sector with a narrow space under external conditions of different roller diameters and different roller spacings, and freely moves and adjusts the electronic control system between a pair of roller electromagnetic stirrers to set the operating parameters of the roller electromagnetic stirrer, thereby accurately testing and measuring the central magnetic induction intensity at different positions of the roller electromagnetic stirrer under different electronic control parameters, with significant results.

Description

Technical Field

[0001] The present invention relates to the technical field of metal smelting and continuous casting, and in particular to an online magnetic field testing device for a roller-type electromagnetic stirrer. Background Art

[0002] During the continuous casting process, the roller electromagnetic stirrer's associated electronic control system and cooling water system require power and water to operate properly and test its magnetic induction intensity. However, users typically lack power and water access elsewhere except at the continuous casting line's fan-shaped section installation site. Configuring these separate electronic control and cooling water systems offline is neither cost-effective nor practical, making it impossible to measure the roller electromagnetic stirrer's magnetic induction intensity offline. Furthermore, the space within the continuous casting line's fan-shaped section where the roller electromagnetic stirrer is installed is very limited, making online magnetic induction intensity measurement impossible without auxiliary tools.

[0003] Utility model patent CN201921808367.0 discloses a device for measuring the magnetic force size and direction of an electromagnetic stirring roller. The measuring device has a simple structure and is easy to operate. It can indeed realize online measurement of the magnetic induction intensity of the roller electromagnetic stirrer to a certain extent. However, there are two shortcomings in this measuring device. The first is that the structure of the measuring device is unstable. Although most of the materials of the device are non-magnetic materials, it cannot be guaranteed that all materials of the measuring device are absolutely non-magnetic. Then, in a strong magnetic field environment, the measuring device is prone to jitter, which affects the measurement accuracy. There are no fixing measures between the roller electromagnetic stirrers, and there is even a risk of falling. The second is that the placement of the measuring device is limited, and it is impossible to accurately measure the key data of the magnetic induction intensity of the center of the two rollers, because the measuring device can only be placed on the highest roller surface of the roller electromagnetic stirrer in the vertical direction. The roller electromagnetic stirrer is generally installed on the arc section of the continuous casting machine. Figure 7 , then the plane where the axes of the upper and lower paired roller electromagnetic stirrers are located is not a vertical plane. Although the Gaussmeter probe can be adjusted to the center of the two rollers by adjusting the height of the measuring device support base, this center is not the center of the two roller axes. Even if the angle of the probe bracket can be adjusted, it is impossible to accurately and quantitatively guarantee the adjusted position, that is, the center of the two roller axes. Therefore, it is impossible to accurately measure the key data of the magnetic induction intensity at the center of the two rollers.

[0004] Therefore, based on the above situation, how to quickly and accurately measure the central magnetic induction intensity of different parameters and positions of the roller electromagnetic stirrer under online conditions has become a technical problem that people urgently need to solve. Summary of the Invention

[0005] In view of the above technical problems in the related art, the present invention proposes an online magnetic field testing device for a roller electromagnetic stirrer, which can overcome the above shortcomings of the prior art. The testing device can be fixed between two rollers (see Figure 6 ), and can accurately ensure that the Gaussmeter probe is at the center of the axis of the two rollers, thereby realizing online testing of the key data of the central magnetic induction intensity between the two rollers.

[0006] To achieve the above technical objectives, the technical solution of the present invention is implemented as follows:

[0007] A magnetic field online testing device for a roller-type electromagnetic stirrer, comprising an adjustment plate, wherein both ends of the adjustment plate are provided with a first bolt fastener, and both sides of the top of the adjustment plate are provided with a waist-shaped groove, the top of the waist-shaped groove is slidably connected to a connecting rod on the same side, the connecting rod is connected to the arc-shaped plate on the same side via a second bolt fastener and a sliding pin on the same side, and the sliding pin is fixedly connected to the sliding grooves at both ends of the connecting plate via a baffle and a third bolt fastener on the same side;

[0008] The two ends of the connecting plate are fixedly connected to the connecting rod mounting plates at both ends by bolt fasteners four, and the connecting rod mounting plates at both ends are fixedly connected to the handheld rod by spherical end joint bearings and nut one. A gaussmeter bracket is provided in the center of the connecting plate, and the gaussmeter bracket is fixedly connected to the connecting plate by bolt fasteners five. A gaussmeter is provided in the gaussmeter bracket.

[0009] Furthermore, the bolt fastener 1 includes a bolt 1 and a nut 2.

[0010] Furthermore, the second bolt fastener includes a second bolt, a first spring washer and a first flat washer.

[0011] Furthermore, the bolt fastener three includes a bolt three and a flat washer two.

[0012] Furthermore, the bolt fastener four includes a spring washer two, a bolt four and a nut three.

[0013] Furthermore, the bolt fastener five includes a bolt five and a spring washer three.

[0014] Beneficial effects of the present invention: The present invention installs a Gaussmeter probe on a measuring device, enters a sector with a narrow space under external conditions of different roller diameters and different roller spacings, and freely moves and adjusts the electronic control system between a pair of roller electromagnetic stirrers to set the operating parameters of the roller electromagnetic stirrer, thereby accurately testing and measuring the central magnetic induction intensity at different positions of the roller electromagnetic stirrer under different electronic control parameters, with significant results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 is an exploded diagram of a magnetic field online testing device according to an embodiment of the present invention;

[0017] Figure 2 This is a front view of a magnetic field online testing device according to an embodiment of the present invention;

[0018] Figure 3 is a top view of a magnetic field online testing device according to an embodiment of the present invention;

[0019] Figure 4 This is a left side view of the magnetic field online testing device according to an embodiment of the present invention before adjustment;

[0020] Figure 5 This is a left side view of the magnetic field online testing device after adjustment according to an embodiment of the present invention;

[0021] Figure 6 This is an application diagram of the magnetic induction intensity online testing device according to an embodiment of the present invention;

[0022] Figure 7 This is a sector segment of an application diagram of an online magnetic field testing device according to an embodiment of the present invention;

[0023] Figure 8 This is an enlarged left view of an application diagram of the magnetic field online testing device according to an embodiment of the present invention;

[0024] In the figure: 1. Arc plate, 2. Connecting plate, 3. Adjusting plate, 4. Sliding pin, 5. Connecting rod, 6. Gaussmeter, 7. Gaussmeter bracket, 8. Bolt fastener five, 9. Bolt fastener two, 10. Bolt fastener one, 11. Nut one, 12. Bolt fastener four, 13. Connecting rod mounting plate, 14. Hand-held rod, 15. Ball end joint bearing, 16. Bolt fastener three, 17. Baffle, 18. Sector, 19. Magnetic field online testing device. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention are within the scope of protection of the present invention.

[0026] like Figure 1 As shown, a magnetic field online testing device for a roller-type electromagnetic stirrer according to an embodiment of the present invention comprises an adjustment plate (3), both ends of the adjustment plate (3) are provided with a bolt fastener 1 (10), both sides of the top of the adjustment plate (3) are provided with a waist-shaped groove, the top of the waist-shaped groove is slidably connected to the connecting rod (5) on the same side, the connecting rod (5) is connected to the arc plate (1) on the same side through the bolt fastener 2 (9) and the sliding pin (4) on the same side, and the sliding pin (4) is fixedly connected to the two end sliding grooves on the connecting plate (2) through the baffle (17) and the bolt fastener 3 (16) on the same side;

[0027] The two ends of the connecting plate (2) are fixedly connected to the connecting rod mounting plates (13) at both ends by bolt fasteners four (12), and the connecting rod mounting plates (13) at both ends are fixedly connected to the hand-held rod (14) by spherical end joint bearings (15) and nuts one (11). A gaussmeter bracket (7) is provided in the center of the connecting plate (2), and the gaussmeter bracket (7) is fixedly connected to the connecting plate (2) by bolt fasteners five (8). A gaussmeter (6) is provided in the gaussmeter bracket (7).

[0028] In the embodiment, the bolt fastener 1 (10) includes a bolt 1 and a nut 2, wherein the bolt 1 is a bolt M6×55 and the nut 2 is a nut M6; the bolt fastener 2 (9) includes a bolt 2, a spring washer 1 and a flat washer 1, wherein the bolt 2 is a bolt M6×45, the spring washer 1 is a spring washer D6, and the flat washer 1 is a flat washer D6; the bolt fastener 3 (16) includes a bolt 3 and a flat washer 2, wherein the bolt 3 is a bolt M8×16 and the flat washer 2 is a flat washer D8; the bolt fastener 4 (12) includes a spring washer 2, a bolt 4 and a nut 3, wherein the spring washer 2 is a spring washer D8, the bolt 4 is a bolt M8×25 and the nut 3 is a nut M8; the bolt fastener 5 (8) includes a bolt 5 and a spring washer 3, wherein the bolt 5 is a bolt M3×6 and the spring washer 3 is a spring washer D3.

[0029] By screwing the nut 2 on the bolt 1 on both sides of the adjustment plate (3), the adjustment plate (3) is telescopically moved according to the demand, and the connecting rod (5) slides along the waist-shaped groove on the adjustment plate (3). The connecting rod (5) is connected to the arc plate (1) through the bolt 2, the spring washer 1 and the flat washer 1, and the sliding pin (4). The sliding pin (1) is fixed in the sliding groove of the connecting plate (2) and is fixedly connected by the baffle (17), the bolt 3 and the flat washer 2 to ensure that the sliding pin (4) slides along the sliding groove of the connecting plate (2), thereby driving the arc plate (1) to move along the direction of the contact roller surface, so that the test device is adjusted to a position that contacts the upper and lower roller surfaces.

[0030] The gaussmeter bracket (7) is fixed to the center of the connecting plate (2) by means of bolts five and spring washers three, and the gaussmeter (6) is fixed in the gaussmeter bracket (7). When the test device is adjusted, the gaussmeter probe is exactly in the center between the two rollers.

[0031] The connecting rod mounting plate (13) is connected and fixed to the connecting plate (2) through spring washers 2, bolts 4 and nuts 3, and the hand-held rod (14) is fixed to the connecting rod mounting plate (19) through spherical end joint bearings (15) and nuts (11). The function of the spherical end joint bearings (21) is to ensure that the tester can push and pull the hand-held rod (14) from multiple angles to achieve the test position adjustment of the test device.

[0032] By fixing the gaussmeter on the gaussmeter bracket on the test device, the magnetic induction intensity test of the roller electromagnetic stirrer can be quickly carried out in the narrow space of the continuous casting line.

[0033] By changing the relative position of the adjustment plate and adjusting the spacing between the two curved plates, the test device can adapt to different roller spacings (because the continuous casting machine adjusts the opening of the fan segments, that is, the spacing between the upper and lower rollers, when producing slabs of different thicknesses). The adjustment plate has a heart-shaped structure, and the open chutes on both sides are key components for achieving spacing adjustment in the test device. This test device can achieve an adjustment range of 100mm to 450mm, which basically covers the range of common slab thicknesses.

[0034] Hand-held rods are installed on both sides of the test device. By pushing and pulling the hand-held rods, the test device equipped with a Gaussmeter can be moved freely within the test range. According to the actual situation at the test site, the length of the hand-held rods can be adjusted by increasing or decreasing the number of sections of the hand-held rods to cover a larger test range.

[0035] Key components such as the curved plate, connecting plate, adjustment plate, connecting rod, and connecting rod mounting plate are made of non-magnetic materials. Using magnetic materials would generate eddy currents under electromagnetic influence. The magnetic field would exert an electromagnetic force on the eddy currents, causing the entire test device to vibrate, seriously affecting the accuracy of magnetic field testing. Furthermore, the eddy currents would cause heat generation and even burns. Using non-magnetic materials effectively avoids these problems.

[0036] In order to facilitate understanding of the above technical solutions of the present invention, the above technical solutions of the present invention are described in detail below through specific usage methods.

[0037] In specific use, according to the magnetic field online testing device of a roller electromagnetic stirrer described in the present invention, after the adjustment of the testing device is completed, the roller electromagnetic stirrer system is started and operated, and the magnetic field test is performed after the roller electromagnetic stirrer system is stably operated. By pushing and pulling the hand-held rods (14) at both ends of the testing device, the probe of the Gauss meter (6) on the testing device is moved between the roller electromagnetic stirrers to test the magnetic induction intensity at different positions of the roller electromagnetic stirrer, thereby ultimately achieving the purpose of testing the magnetic induction intensity of the roller electromagnetic stirrer on the continuous casting line.

[0038] To sum up, with the help of the above-mentioned technical solution of the present invention, by installing the Gaussmeter probe on the measuring device, entering the narrow sector under external conditions of different roller diameters and different roller spacings, and freely moving and adjusting the electronic control system between a pair of roller electromagnetic stirrers to set the operating parameters of the roller electromagnetic stirrer, the central magnetic induction intensity at different positions under different electronic control parameters of the roller electromagnetic stirrer can be accurately tested and measured, with significant results.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A magnetic field online testing device for a roller electromagnetic stirrer, characterized in that: The invention comprises an adjustment plate (3), wherein both ends of the adjustment plate (3) are provided with a bolt fastener (10), and both sides of the top of the adjustment plate (3) are provided with a waist-shaped groove, and the top of the waist-shaped groove is slidably connected to the connecting rod (5) on the same side, and the connecting rod (5) is connected to the arc plate (1) on the same side through the bolt fastener (9) and the sliding pin (4) on the same side, and the sliding pin (4) is fixedly connected to the two end sliding grooves on the connecting plate (2) through the baffle (17) and the bolt fastener (16) on the same side; The two ends of the connecting plate (2) are fixedly connected to the connecting rod mounting plates (13) at both ends by bolt fasteners four (12), and the connecting rod mounting plates (13) at both ends are fixedly connected to the hand-held rod (14) by spherical end joint bearings (15) and nuts one (11). A gaussmeter bracket (7) is provided in the center of the connecting plate (2), and the gaussmeter bracket (7) is fixedly connected to the connecting plate (2) by bolt fasteners five (8). A gaussmeter (6) is provided in the gaussmeter bracket (7).

2. The magnetic field online testing device of a roller type electromagnetic stirrer according to claim 1, characterized in that: The bolt fastener 1 (10) comprises a bolt 1 and a nut 2.

3. The magnetic field online testing device of a roller type electromagnetic stirrer according to claim 1, characterized in that: The bolt fastener 2 (9) comprises a bolt 2, a spring washer 1 and a flat washer 1.

4. The magnetic field online testing device of a roller type electromagnetic stirrer according to claim 1, characterized in that: The bolt fastener three (16) includes a bolt three and a flat washer two.

5. The magnetic field online testing device of a roller type electromagnetic stirrer according to claim 1, characterized in that: The bolt fastener four (12) includes a spring washer two, a bolt four and a nut three.

6. The magnetic field online testing device of a roller type electromagnetic stirrer according to claim 1, characterized in that: The bolt fastener five (8) includes a bolt five and a spring washer three.

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