A high-speed rotor test device based on a non-contact magnetic coupling

Abstract

The application belongs to the technical field of high-speed rotor testing device, in particular to a high-speed rotor testing device based on a non-contact magnetic coupling, which comprises a bottom plate, one side of the upper surface of the bottom plate is fixedly connected with a stand, one side of the stand is fixedly installed with an adjusting mechanism, the outer surface of the adjusting mechanism is threadedly connected with an upper plate, one side of the upper plate is fixedly installed with a first motor, the output end of the first motor is fixedly connected with a first threaded rod, the outer surface of the first threaded rod is threadedly connected with a moving plate, and the upper surface of the moving plate is fixedly connected with a driving mechanism at the edge; the stable mechanism is arranged to make the magnetic ring be at the periphery of the rotor, the electromagnet is arranged in the magnetic ring, the position of the magnetic ring is measured by a scale, the position of the magnetic ring is adjusted by the sliding plate, the magnetic force is controlled, the repulsive force between the magnetic field force generated by the magnetic ring and the driving magnetic disc and the driven magnetic disc is counteracted, so that the balance of the magnetic field is ensured and the stability of rotation is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of high-speed rotor testing devices, specifically a high-speed rotor testing device based on a non-contact magnetic coupling. Background Technology

[0002] High-speed rotors refer to rotating components that operate at extremely high speeds, commonly found in equipment such as aircraft engines, gas turbines, and high-speed motors. A high-speed rotor testing device is a specialized piece of equipment used to test the performance and reliability of high-speed rotors. It can simulate high-speed rotation conditions, measure parameters such as rotor vibration, temperature, and stress, thereby evaluating its design and manufacturing quality and verifying its stability and durability at high speeds. Magnetic couplings are non-contact couplings that transmit torque using magnetic force. They achieve power transmission through magnetic field coupling between permanent magnets at the driving and driven ends, offering advantages such as wear-free operation, vibration damping, and overload protection. Compared to traditional rigid couplings, it provides a more flexible connection. In high-speed rotor testing devices, magnetic couplings act as non-contact power transmission elements, isolating the drive motor from mechanical vibration and impacts between the drive motor and the tested high-speed rotor, providing a smooth driving force, and enabling torque limiting and protection under overload conditions. This improves testing accuracy, extends equipment life, and ensures testing safety.

[0003] However, in practical applications, magnetic couplings, due to limited size, transmit relatively small torques and are prone to loss of synchronization, affecting the stability and accuracy of the test. Furthermore, when the magnetic force of the magnetic coupling is withdrawn, the tested rotor is prone to falling and being damaged. In addition, existing test devices can only perform alignment tests, and their test functions are relatively simple, making it difficult to meet the needs of comprehensively evaluating the performance of high-speed rotors.

[0004] Therefore, the present invention provides a high-speed rotor testing device based on a non-contact magnetic coupling. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The high-speed rotor test device based on a non-contact magnetic coupling of the present invention includes a base plate, a column fixedly connected to one side of the upper surface of the base plate, an adjustment mechanism fixedly installed on one side of the column, an upper plate threadedly connected to the outer surface of the adjustment mechanism, a first motor fixedly installed on one side of the upper plate, a first threaded rod fixedly connected to the output end of the first motor, a moving plate threadedly connected to the outer surface of the first threaded rod, an active mechanism fixedly connected to the edge of the upper surface of the moving plate, a stabilizing mechanism slidably connected to the middle of the upper surface of the moving plate, an organism fixedly connected to the edge of the upper surface of the base plate, and a protective mechanism fixedly connected to the bottom end of the inner side of the organism.

[0007] The stabilizing mechanism includes a sliding plate, the lower surface of which is slidably connected to the middle of the upper surface of the movable plate. A magnetic ring is fixedly connected inside the sliding plate, and a storage box is fixedly connected to the upper surface of the magnetic ring. Measuring rulers are slidably connected to both sides of the storage box.

[0008] The measuring tape is fixedly connected to a locking rod on its inner side, and the storage box has locking rings that are compatible with the locking rod on both sides of its upper surface.

[0009] The adjustment mechanism includes a second motor, one side of which is fixedly installed on one side of the column. A transmission component is fixedly connected to the output end of the second motor. A second threaded rod is fixedly connected to one side of the transmission component. The outer surface of the second threaded rod is threadedly connected to the middle of the lower surface of the moving plate.

[0010] The active mechanism includes a vertical plate, the lower surface of which is fixedly connected to the edge of the upper surface of the movable plate. A third motor is fixedly connected to one side of the vertical plate, and a first connector is fixedly connected to the output end of the third motor. An active magnetic disk is threadedly connected to one side of the first connector via a first bolt.

[0011] The protective mechanism includes a cylinder, one end of which is fixedly connected to the bottom of the inner side of the machine body. A movable block is fixedly connected to the output end of the cylinder. An electric push rod is fixedly connected to the upper surface of the movable block. An attraction plate is fixedly connected to the top of the electric push rod. An electromagnetic block is fixedly connected to the upper surface of the attraction plate.

[0012] The upper plate has slide rails fixedly connected to both sides of its upper surface, and a slider is slidably connected to the outer surface of the slide rails. The upper surface of the slider is fixedly connected to one side of the lower surface of the movable plate.

[0013] A second connector is fixedly connected to the middle of the inner side of the machine body, and a driven magnetic disk is threadedly connected to one side of the second connector via a second bolt.

[0014] Springs are fixedly connected to both sides of the upper surface of the slide plate, and a plug is fixedly connected to the top of the spring. Several holes and slots that are adapted to the plug are opened on both sides of the upper surface of the movable plate.

[0015] Square grooves are provided on both sides of the base plate. A first baffle is slidably connected inside the square groove, and a second baffle is slidably connected to one side of the first baffle.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. The high-speed rotor testing device based on a non-contact magnetic coupling of the present invention, through a set stabilizing mechanism, places a magnetic ring on the periphery of the rotor, and the magnetic ring contains an electromagnet. The position of the magnetic ring is measured by a measuring scale, and the position of the magnetic ring is adjusted by a sliding plate. The magnetic force is controlled so that the magnetic force generated by the magnetic ring cancels out the repulsive force between the active and driven magnetic disks, thereby ensuring the balance of the magnetic field, improving the rotational stability, reducing vibration, improving the accuracy of test data, and the uniform magnetic field can improve the efficiency of the magnetic coupling and reduce the loss caused by excessive local magnetic field. At the same time, the magnetic ring can also concentrate and enhance the magnetic field around the rotor, thereby increasing the torque force, avoiding loss of synchronization, and ensuring the adaptability of the testing device.

[0018] 2. The high-speed rotor testing device based on a non-contact magnetic coupling described in this invention, through the protective mechanism, allows the rotor to be attracted and fixed by an electromagnetic block when the magnetic ring, active magnetic disk, and driven magnetic disk are removed, preventing it from falling, colliding, and being damaged.

[0019] 3. The high-speed rotor testing device based on a non-contact magnetic coupling described in this invention can adjust the distance and offset between the active and driven magnetic disks through the first motor, the first threaded rod, and the adjustment mechanism, ensuring that the device operates in the best condition. At the same time, it can also test the motion state under rotor misalignment and magnetic field asymmetry, thereby improving the test versatility of the device. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the movable plate in this invention;

[0023] Figure 3 This is a schematic diagram of the magnetic ring structure in this invention;

[0024] Figure 4This is a schematic diagram of the active magnetic disk in this invention;

[0025] Figure 5 This is a schematic diagram of the attraction plate in this invention;

[0026] Figure 6 This is a schematic diagram of the driven magnetic disk in this invention.

[0027] In the diagram: 1. Base plate; 2. Column; 3. Top plate; 4. First motor; 5. First threaded rod; 6. Moving plate; 7. Body; 8. Slide plate; 9. Magnetic ring; 10. Storage box; 11. Measuring ruler; 12. Clamping rod; 13. Clamping ring; 14. Second motor; 15. Transmission component; 16. Second threaded rod; 17. Upright plate; 18. Third motor; 19. First connecting piece; 20. Active magnetic disk; 21. Cylinder; 22. Moving block; 23. Electric push rod; 24. Attraction plate; 25. Electromagnetic block; 26. Slide rail; 27. Slider; 28. Second connecting piece; 29. ​​Driven magnetic disk; 30. Spring; 31. Insert rod; 32. First stop frame; 33. Second stop frame. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0029] Reference Figure 1 - Figure 6 This invention provides three technical solutions:

[0030] Example 1:

[0031] The system includes a base plate 1, a column 2 fixedly connected to one side of the upper surface of the base plate 1, an adjustment mechanism fixedly installed on one side of the column 2, an upper plate 3 threadedly connected to the outer surface of the adjustment mechanism, a first motor 4 fixedly installed on one side of the upper plate 3, a first threaded rod 5 fixedly connected to the output end of the first motor 4, a moving plate 6 threadedly connected to the outer surface of the first threaded rod 5, an active mechanism fixedly connected to the edge of the upper surface of the moving plate 6, a stabilizing mechanism slidably connected to the middle of the upper surface of the moving plate 6, an organism 7 fixedly connected to the edge of the upper surface of the base plate 1, and a protective mechanism fixedly connected to the bottom of the inner side of the organism 7.

[0032] The stabilizing mechanism includes a sliding plate 8, the lower surface of which is slidably connected to the middle of the upper surface of the moving plate 6. A magnetic ring 9 is fixedly connected inside the sliding plate 8, and a storage box 10 is fixedly connected to the upper surface of the magnetic ring 9. Measuring scales 11 are slidably connected to both sides of the storage box 10, so that the magnetic ring 9 is located around the rotor. The measuring scales 11 measure the distance between the two sides of the magnetic ring 9 and the active magnetic disk 20 and the driven magnetic disk 29, respectively. The sliding plate 8 drives the magnetic ring 9 to move so as to adjust its position. The magnetic ring 9 contains an electromagnet, which can control the magnetic force so that the magnetic force it generates cancels out the repulsive force between the active magnetic disk 20 and the driven magnetic disk 29, thereby ensuring the balance of the magnetic field, improving its rotational stability, reducing vibration, improving the accuracy of test data, and the uniform magnetic field can improve the efficiency of the magnetic coupling and reduce the loss caused by excessive local magnetic field. At the same time, the magnetic ring 9 can also concentrate and enhance the magnetic field around the rotor, thereby increasing the torque force, avoiding loss of synchronization, and ensuring the adaptability of the test device.

[0033] A locking rod 12 is fixedly connected to the inside of the measuring tape 11. Both sides of the upper surface of the storage box 10 are fixedly connected with locking rings 13 that are compatible with the locking rod 12. After the measuring tape 11 has finished measuring, it can be pushed into the storage box 10 for storage. At this time, the locking rod 12 is locked inside the locking ring 13 to prevent the measuring tape 11 from sliding out on its own.

[0034] Example 2:

[0035] Based on Embodiment 1: The adjustment mechanism includes a second motor 14, one side of which is fixedly installed on one side of the column 2. The output end of the second motor 14 is fixedly connected to a transmission component 15, and one side of the transmission component 15 is fixedly connected to a second threaded rod 16. The outer surface of the second threaded rod 16 is threadedly connected to the middle of the lower surface of the moving plate 6. When the external power supply starts the second motor 14, the second threaded rod 16 is driven to rotate via the transmission component 15, thereby causing the upper plate 3 to move left and right. Combined with the first motor 4 driving the moving plate 6 to move back and forth via the first threaded rod 5, the offset and distance between the active magnetic disk 20 and the driven magnetic disk 29 can be adjusted to ensure that the device operates in the best condition. At the same time, it can also test the motion state under rotor misalignment and magnetic field asymmetry, improving the test versatility of the test device.

[0036] The active mechanism includes a vertical plate 17, the lower surface of which is fixedly connected to the edge of the upper surface of the movable plate 6. A third motor 18 is fixedly connected to one side of the vertical plate 17. A first connector 19 is fixedly connected to the output end of the third motor 18. An active magnetic disk 20 is threadedly connected to one side of the first connector 19 via a first bolt. When an external power source starts the third motor 18, it drives the active magnetic disk 20 to rotate via the first connector 19, thereby changing the magnetic field and causing the rotor to rotate.

[0037] The protective mechanism includes a cylinder 21. One end of the cylinder 21 is fixedly connected to the bottom of the inner side of the machine body 7. A moving block 22 is fixedly connected to the output end of the cylinder 21. An electric push rod 23 is fixedly connected to the upper surface of the moving block 22. An attraction plate 24 is fixedly connected to the top of the electric push rod 23. An electromagnetic block 25 is fixedly connected to the upper surface of the attraction plate 24. When the magnetic ring 9, the active magnetic disk 20, and the driven magnetic disk 29 are removed, the cylinder 21 is activated to move the moving block 22 so that the attraction plate 24 is in the middle of the rotor. Then, the electric push rod 23 is activated to push the attraction plate 24 upward and make contact with the rotor. Subsequently, the electromagnetic block 25 is energized to generate magnetic force. The electromagnetic block 25 can attract and fix the rotor to prevent it from falling, colliding, and being damaged.

[0038] Both sides of the upper surface of the upper plate 3 are fixedly connected to slide rails 26. A slider 27 is slidably connected to the outer surface of the slide rails 26. The upper surface of the slider 27 is fixedly connected to one side of the lower surface of the movable plate 6. The slider 27 slides on the outer surface of the slide rails 26 to limit and guide the movable plate 6, so that it can move horizontally along the first threaded rod 5.

[0039] A second connector 28 is fixedly connected to the middle of the inner side of the machine body 7. A driven magnetic disk 29 is threadedly connected to one side of the second connector 28 via a second bolt. After the rotor is driven by the active magnetic disk 20, the magnetic force acts on the driven magnetic disk 29, causing the driven magnetic disk 29 to rotate together, thereby transmitting torque to the second connector 28. Various sensors inside the machine body 7 detect the data and transmit the data to the data acquisition system for recording and analysis to evaluate rotor performance, diagnose potential faults, and provide feedback to the control system, thereby ensuring the safety and stability of the test.

[0040] Springs 30 are fixedly connected to both sides of the upper surface of the slide plate 8. A rod 31 is fixedly connected to the top of the spring 30. Several holes and slots that match the rod 31 are opened on both sides of the upper surface of the movable plate 6. The spring 30 pulls the rod 31 downward so that the rod 31 is inserted into the required hole or slot to fix the position of the slide plate 8 and avoid the generation of repulsive force in the magnetic field, which would cause the position of the slide plate 8 to move and the position of the magnetic ring 9 to shift.

[0041] Square slots are provided on both sides of the base plate 1. A first baffle 32 is slidably connected inside the square slots. A second baffle 33 is slidably connected to one side of the first baffle 32. During the test, the first baffle 32 can shield the test area. Pulling the second baffle 33 out can expand the shielding range and improve the safety of the operator during the test.

[0042] Working principle: First, the magnetic ring 9 is positioned around the rotor. A measuring scale 11 measures the distances between the magnetic ring 9 and the active magnetic disk 20 and the driven magnetic disk 29 on both sides. The sliding plate 8 moves the magnetic ring 9 to the desired position. Then, a spring 30 pulls the insertion rod 31 downwards, inserting it into the desired slot to fix the position of the sliding plate 8. Next, the measuring scale 11 is pushed into the storage box 10 for storage. At this time, the locking rod 12 engages with the locking ring 13 to prevent the measuring scale 11 from sliding out. Then, an external power supply starts the second motor 14, which drives the second threaded rod 16 to rotate via the transmission component 15, causing the upper plate 3 to move left and right. Combined with the first motor 4 driving the moving plate 6 back and forth via the first threaded rod 5, the offset and distance between the active magnetic disk 20 and the driven magnetic disk 29 can be adjusted. Simultaneously, the movement state under conditions of rotor misalignment and magnetic field asymmetry can be tested. During this testing process, the following can be observed: First, the magnetic ring 9 needs to be controlled to ensure it is magnetized. Second, the first baffle 32 is positioned outside the test area to shield it. Alternatively, the second baffle 33 can be moved out to expand the shielding range. Then, the external power supply starts the third motor 18, which drives the active magnetic disk 20 to rotate via the first connector 19, thereby changing the magnetic field and causing the rotor to rotate. The magnetic force then acts on the driven magnetic disk 29, causing it to rotate as well, thus transmitting torque to the second connector 28. The sensors inside the machine body 7 detect the data and transmit it to the data acquisition system for recording and analysis. Finally, when the magnetic ring 9, the active magnetic disk 20, and the driven magnetic disk 29 are removed, the cylinder 21 is activated to move the moving block 22 so that the attraction plate 24 is positioned in the middle of the rotor. Then, the electric push rod 23 is activated to push the attraction plate 24 upward to contact the rotor. Subsequently, the electromagnetic block 25 is energized to generate magnetic force, which attracts and fixes the rotor to prevent it from falling.

[0043] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0044] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-speed rotor testing device based on a non-contact magnetic coupling, characterized in that: Includes a base plate (1), a column (2) is fixedly connected to one side of the upper surface of the base plate (1), an adjustment mechanism is fixedly installed on one side of the column (2), an upper plate (3) is threadedly connected to the outer surface of the adjustment mechanism, a first motor (4) is fixedly installed on one side of the upper plate (3), a first threaded rod (5) is fixedly connected to the output end of the first motor (4), a moving plate (6) is threadedly connected to the outer surface of the first threaded rod (5), an active mechanism is fixedly connected to the edge of the upper surface of the moving plate (6), a stabilizing mechanism is slidably connected to the middle of the upper surface of the moving plate (6), an organism (7) is fixedly connected to the edge of the upper surface of the base plate (1), and a protective mechanism is fixedly connected to the bottom of the inner side of the organism (7). The stabilizing mechanism includes a slide plate (8), the lower surface of which is slidably connected to the middle of the upper surface of the moving plate (6), a magnetic ring (9) is fixedly connected inside the slide plate (8), a storage box (10) is fixedly connected to the upper surface of the magnetic ring (9), and a measuring ruler (11) is slidably connected to both sides of the storage box (10). The adjustment mechanism includes a second motor (14), one side of which is fixedly installed on one side of the column (2), and the output end of the second motor (14) is fixedly connected to a transmission component (15). One side of the transmission component (15) is fixedly connected to a second threaded rod (16), and the outer surface of the second threaded rod (16) is threadedly connected to the middle of the lower surface of the moving plate (6). The active mechanism includes a vertical plate (17), the lower surface of which is fixedly connected to the edge of the upper surface of the movable plate (6), a third motor (18) is fixedly connected to one side of the vertical plate (17), a first connector (19) is fixedly connected to the output end of the third motor (18), and an active magnetic disk (20) is threadedly connected to one side of the first connector (19) by a first bolt. The protective mechanism includes a cylinder (21), one end of which is fixedly connected to the bottom of the inner side of the body (7). A moving block (22) is fixedly connected to the output end of the cylinder (21). An electric push rod (23) is fixedly connected to the upper surface of the moving block (22). An attraction plate (24) is fixedly connected to the top of the electric push rod (23). An electromagnetic block (25) is fixedly connected to the upper surface of the attraction plate (24).

2. The high-speed rotor testing device based on a non-contact magnetic coupling according to claim 1, characterized in that: The measuring ruler (11) is fixedly connected to a locking rod (12) on its inner side, and the storage box (10) is fixedly connected to two sides of its upper surface with locking rings (13) that are compatible with the locking rod (12).

3. The high-speed rotor testing device based on a non-contact magnetic coupling according to claim 1, characterized in that: The upper plate (3) has slide rails (26) fixedly connected to both sides of its upper surface. The outer surface of the slide rails (26) is slidably connected to a slider (27). The upper surface of the slider (27) is fixedly connected to one side of the lower surface of the movable plate (6).

4. The high-speed rotor testing device based on a non-contact magnetic coupling according to claim 1, characterized in that: A second connector (28) is fixedly connected to the middle of the inner side of the body (7), and a driven magnetic disk (29) is threadedly connected to one side of the second connector (28) by a second bolt.

5. A high-speed rotor testing device based on a non-contact magnetic coupling according to claim 1, characterized in that: Springs (30) are fixedly connected to both sides of the upper surface of the slide plate (8), and a plug rod (31) is fixedly connected to the top of the spring (30). Several holes and slots that are compatible with the plug rod (31) are opened on both sides of the upper surface of the moving plate (6).

6. The high-speed rotor testing device based on a non-contact magnetic coupling according to claim 1, characterized in that: The base plate (1) has square grooves on both sides, and a first baffle (32) is slidably connected inside the square groove. A second baffle (33) is slidably connected to one side of the first baffle (32).

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