Electromagnetic simulation device for end iron core of large generator

Abstract

The utility model provides an electromagnetic simulation device for an end iron core of a large-scale generator, which belongs to the technical field of electromagnetic detection and comprises a test coil. The coil supporting table is fixedly connected to the lower end of the test coil; the detection device comprises a fixing plate, a movable sleeve, a threaded groove, a motor fixing groove, a driving motor, a driving screw and a steel bar probe, the fixing plate is fixedly connected to the lower end of the coil supporting table through bolts, and the movable sleeve is fixedly connected to the lower end of the fixing plate, so that the measurement precision is improved, and the operation process is simplified; the method is suitable for deep electromagnetic characteristic analysis of the end iron core of the large generator.

Description

Technical Field

[0001] This utility model belongs to the field of electromagnetic detection technology, specifically relating to an electromagnetic simulation device for the end core of a large generator. Background Technology

[0002] In the existing technology, electromagnetic simulation devices are equipment used to study and test electromagnetic phenomena. These devices can be widely used in scientific research, engineering design, product development, and education. They can generate and control electromagnetic fields to simulate various electromagnetic conditions that may be encountered in real-world environments.

[0003] Authorized publication number "CN222258685U" discloses an electromagnetic damping simulation testing device comprising: a test bench, a torque measurement module, a rotation simulation module, a drive module, and a data acquisition instrument. The test bench includes a base plate, linear guide rails one to two, and slider groups one to four. The linear guide rails are mounted on the base plate, and slider groups one to four are positioned on the linear guide rails. The torque measurement module includes a sensor base, a torque sensor, and a fixed cylinder. The sensor base is mounted on the test bench, and the sensor base, torque sensor, and fixed cylinder are integrated. The rotation simulation module includes a rotating cylinder and a support assembly. The drive module includes a coupling, a key, a motor, a frequency converter, a speed sensor, and a motor base. The motor, frequency converter, and speed sensor are mounted on the motor base, and the coupling and motor are integrated via a key. The data acquisition instrument is connected to the sensor via a data cable. This invention can effectively simulate the electromagnetic damping effect of an eddy current damper during operation and enables rapid debugging.

[0004] The aforementioned novel device can effectively simulate the electromagnetic damping effect of an eddy current damper during operation and enables rapid debugging. In traditional electromagnetic simulation devices, the fixed position or inaccurate adjustment of the rebar probe makes it impossible to accurately measure the most uniform magnetic field region generated by the test coil, thus affecting the accuracy of the measurement results. Utility Model Content

[0005] The purpose of this invention is to provide an electromagnetic simulation device for the end core of a large generator, which aims to solve the problem in the existing technology where, due to the fixed position or inaccurate adjustment of the rebar probe in traditional electromagnetic simulation devices, it is impossible to accurately measure the most uniform magnetic field region generated by the test coil, thus affecting the accuracy of the measurement results.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An electromagnetic simulation device for the end core of a large generator, comprising:

[0008] Test coil;

[0009] A coil support platform is fixedly connected to the lower end of the test coil.

[0010] The detection device includes a fixed plate, a movable sleeve, a threaded groove, a motor fixing groove, a drive motor, a drive screw, and a rebar detection probe. The fixed plate is fixedly connected to the lower end of the coil support platform by bolts. The movable sleeve is fixedly connected to the lower end of the fixed plate. The threaded groove is formed inside the movable sleeve. The motor fixing groove is located on one side of the test coil. The drive motor is fixedly connected to the upper end of the motor fixing groove. The drive screw is fixedly connected to the output end of the drive motor and is located inside the threaded groove and threadedly connected to the threaded groove. The rebar detection probe is located on one side of the test coil.

[0011] In a preferred embodiment of this utility model, the rebar detection needle is located at the center of the test coil.

[0012] In a preferred embodiment of this utility model, a sliding rail is fixedly connected to one side of the motor fixing slot, a sliding groove is provided at the upper end of the sliding rail, and a sliding block is fixedly connected to the lower end of the movable sleeve, the sliding block sliding within the sliding groove.

[0013] In a preferred embodiment of this utility model, a connecting plate is fixedly connected to one side of the sliding track, and a fixing sleeve is fixedly connected to the upper end of the connecting plate, with the rebar detection needle fixedly connected inside the fixing sleeve.

[0014] In a preferred embodiment of this utility model, a data receiver is fixedly connected to one end of the rebar detection needle, and a data acquisition instrument is fixedly connected to the upper end of the connecting plate. The data receiver and the data acquisition instrument are electrically connected.

[0015] As a preferred embodiment of this utility model, a power amplifier is provided on one side of the test coil, and the power amplifier is connected to an external power supply.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this scheme, the magnetic field strength change at different distances is measured using this device. This method not only improves the measurement accuracy but also simplifies the operation process, making it suitable for in-depth electromagnetic characteristic analysis of the end core of large generators.

[0018] In this scheme, the addition of the power amplifier through this device enables the system to adapt to more diverse experimental needs, enhancing its practicality and application range. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a first structural perspective view of the present invention;

[0021] Figure 2 This is a perspective view of the second structure in this utility model;

[0022] Figure 3 This is an exploded view of the first cross-sectional structure of this utility model;

[0023] Figure 4 This is an exploded cross-sectional view of the second structure in this utility model.

[0024] In the diagram: 1. Test coil; 2. Coil support platform; 3. Fixing plate; 4. Moving sleeve; 5. Threaded groove; 6. Motor fixing groove; 7. Drive motor; 8. Drive screw; 9. Rebar detection probe; 10. Sliding rail; 11. Sliding groove; 12. Sliding block; 13. Connecting plate; 14. Fixing sleeve; 15. Data receiver; 16. Data acquisition instrument; 17. Power amplifier. Detailed Implementation

[0025] 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.

[0026] Example

[0027] Please see Figures 1-4 The present invention provides the following technical solution:

[0028] An electromagnetic simulation device for the end core of a large generator, comprising:

[0029] Test coil 1;

[0030] Coil support platform 2 is fixedly connected to the lower end of test coil 1;

[0031] The testing device includes a fixed plate 3, a movable sleeve 4, a threaded groove 5, a motor fixing groove 6, a drive motor 7, a drive screw 8, and a rebar detection needle 9. The fixed plate 3 is fixedly connected to the lower end of the coil support platform 2 by bolts. The movable sleeve 4 is fixedly connected to the lower end of the fixed plate 3. The threaded groove 5 is opened in the movable sleeve 4. The motor fixing groove 6 is located on one side of the test coil 1. The drive motor 7 is fixedly connected to the upper end of the motor fixing groove 6. The drive screw 8 is fixedly connected to the output end of the drive motor 7. The drive screw 8 is located in the threaded groove 5 and is threadedly connected to the threaded groove 5. The rebar detection needle 9 is located on one side of the test coil 1.

[0032] In a specific embodiment of this utility model, the test coil 1 is designed to generate a uniform magnetic field to simulate the electromagnetic environment around the iron core at the end of the generator. The coil support platform 2 provides a stable foundation for the entire system. The movable sleeve 4 has a threaded groove 5 machined inside, allowing the rebar probe 9 to move along a set path. The rebar probe 9 is placed on one side of the test coil 1, and its distance from the test coil 1 can be adjusted as needed. The drive motor 7 is installed on the upper end of the motor fixing slot 6 and is responsible for providing power to rotate the drive screw 8. The rotational motion of the drive motor 7 is converted into the linear motion of the rebar probe 9 through the cooperation of the drive screw 8 and the threaded groove 5. This allows for very precise changes in the distance between the rebar probe 9 and the test coil 1, thereby measuring the change in magnetic field strength at different distances. This method not only improves the measurement accuracy but also simplifies the operation process, making it suitable for in-depth electromagnetic characteristic analysis of the iron core at the end of large generators.

[0033] Please refer to the details. Figures 1-4 The rebar detection needle 9 is located at the center of the test coil 1.

[0034] In this embodiment, the rebar detection needle 9 is precisely positioned at the center of the test coil 1. This arrangement ensures that the rebar detection needle 9 is within the most uniform magnetic field region generated by the test coil 1, thereby improving the accuracy and reliability of the measurement results.

[0035] Please refer to the details. Figures 1-4 A sliding rail 10 is fixedly connected to one side of the motor fixing slot 6. A sliding groove 11 is provided at the upper end of the sliding rail 10. A sliding block 12 is fixedly connected to the lower end of the movable sleeve 4. The sliding block 12 slides in the sliding groove 11.

[0036] In this embodiment: the sliding groove 11 is opened at the upper end of the sliding track 10 to provide a sliding path for the sliding block 12. The sliding block 12 is embedded in the sliding groove 11 and can slide therein, which ensures that the linear movement of the moving sleeve 4 and the rebar detection needle 9 is smoother and more accurate, and limits the movement direction of the test coil 1 so that it can only move back and forth in a straight line.

[0037] Please refer to the details. Figures 1-4 A connecting plate 13 is fixedly connected to one side of the sliding track 10, and a fixing sleeve 14 is fixedly connected to the upper end of the connecting plate 13. The rebar detection needle 9 is fixedly connected inside the fixing sleeve 14.

[0038] In this embodiment: the connecting plate 13 is fixedly connected to one end of the sliding rail 10, providing additional mechanical support and serving as an installation platform for the fixing sleeve 14. The fixing sleeve 14 is used to accommodate and fix the rebar detection needle 9, ensuring that it maintains a stable position during the measurement process.

[0039] Please refer to the details. Figures 1-4 A data receiver 15 is fixedly connected to one side of the rebar detector 9, and a data acquisition instrument 16 is fixedly connected to the upper end of the connecting plate 13. The data receiver 15 and the data acquisition instrument 16 are electrically connected.

[0040] In this embodiment, the magnetic field change signals detected by the rebar probe 9 at different locations are transmitted to the data receiver 15, and then transmitted to the data acquisition instrument 16 via an electrical connection. The data acquisition instrument 16 is responsible for recording, processing and analyzing these signals, providing detailed information about the magnetic field strength and distribution, and helping the user understand the electromagnetic characteristics around the test coil 1.

[0041] Please refer to the details. Figures 1-4 A power amplifier 17 is provided on one side of the test coil 1, and the power amplifier 17 is connected to an external power supply.

[0042] In this embodiment, by adding a power amplifier 17, this embodiment not only achieves precise position control and high-precision measurement of the rebar detector 9, but also provides flexible adjustment capability of magnetic field strength, greatly improving the controllability and research depth of the experiment. The introduction of the fixed sleeve 14 provides additional safety assurance, enabling the rebar detector 9 to maintain high stability during operation, thereby ensuring the accuracy of the measurement data. At the same time, the addition of the power amplifier 17 allows the system to adapt to more diverse experimental needs, enhancing its practicality and application range.

[0043] The working principle and usage process of this utility model are as follows: The test coil 1 is designed to generate a uniform magnetic field to simulate the electromagnetic environment around the iron core at the end of the generator. The coil support platform 2 provides a stable foundation for the entire system. The movable sleeve 4 has a threaded groove 5 machined inside, allowing the rebar probe 9 to move along a set path. The rebar probe 9 is placed on one side of the test coil 1, and its distance from the test coil 1 can be adjusted as needed. The drive motor 7 is installed on the upper end of the motor fixing slot 6 and is responsible for providing power to rotate the drive screw 8. The rotational motion of the drive motor 7 is converted into the linear motion of the rebar probe 9 through the cooperation of the drive screw 8 and the threaded groove 5. This allows for very precise changes in the distance between the rebar probe 9 and the test coil 1, thereby measuring the change in magnetic field strength at different distances. This method not only improves the measurement accuracy but also simplifies the operation process, making it suitable for in-depth electromagnetic characteristic analysis of the iron core at the end of large generators.

[0044] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electromagnetic simulation device for the end core of a large generator, characterized in that: include: Test coil (1); A coil support platform (2) is fixedly connected to the lower end of the test coil (1); The detection device includes a fixed plate (3), a movable sleeve (4), a threaded groove (5), a motor fixing groove (6), a drive motor (7), a drive screw (8), and a rebar detection needle (9). The fixed plate (3) is fixedly connected to the lower end of the coil support platform (2) by bolts. The movable sleeve (4) is fixedly connected to the lower end of the fixed plate (3). The threaded groove (5) is opened in the movable sleeve (4). The motor fixing groove (6) is located on one side of the test coil (1). The drive motor (7) is fixedly connected to the upper end of the motor fixing groove (6). The drive screw (8) is fixedly connected to the output end of the drive motor (7). The drive screw (8) is located in the threaded groove (5) and threadedly connected to the threaded groove (5). The rebar detection needle (9) is located on one side of the test coil (1).

2. The electromagnetic simulation device for the end core of a large generator according to claim 1, characterized in that: The rebar detection needle (9) is located at the center of the test coil (1).

3. The electromagnetic simulation device for the end core of a large generator according to claim 2, characterized in that: A sliding rail (10) is fixedly connected to one side end of the motor fixing groove (6). A sliding groove (11) is opened at the upper end of the sliding rail (10). A sliding block (12) is fixedly connected to the lower end of the movable sleeve (4). The sliding block (12) slides in the sliding groove (11).

4. The electromagnetic simulation device for the end core of a large generator according to claim 3, characterized in that: A connecting plate (13) is fixedly connected to one side end of the sliding track (10), and a fixing sleeve (14) is fixedly connected to the upper end of the connecting plate (13). The rebar probe (9) is fixedly connected inside the fixing sleeve (14).

5. The electromagnetic simulation device for the end core of a large generator according to claim 4, characterized in that: A data receiver (15) is fixedly connected to one side of the rebar detection needle (9), and a data acquisition instrument (16) is fixedly connected to the upper end of the connecting plate (13). The data receiver (15) and the data acquisition instrument (16) are electrically connected.

6. The electromagnetic simulation device for the end core of a large generator according to claim 5, characterized in that: A power amplifier (17) is provided on one side of the test coil (1), and the power amplifier (17) is connected to an external power source.

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