High-speed rotor test device based on non-contact magnetic coupling

Abstract

The invention belongs to the technical field of high-speed rotor test devices, and particularly relates to a high-speed rotor test 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 column, one side of the stand column is fixedly provided with an adjusting mechanism, and the outer surface of the adjusting mechanism is in threaded connection with an upper plate. A first motor is fixedly mounted on one side of the upper plate, a first threaded rod is fixedly connected to the output end of the first motor, a moving plate is in threaded connection to the outer surface of the first threaded rod, and a driving mechanism is fixedly connected to the edge of the upper surface of the moving plate; through the arranged stabilizing mechanism, the magnetic ring is located on the periphery of the rotor, the electromagnet is arranged in the magnetic ring, the position of the magnetic ring is measured through the measuring scale, the position of the magnetic ring is adjusted through the sliding plate, and the magnetic force is controlled, so that the generated magnetic field force counteracts the repulsive force between the driving magnetic disc and the driven magnetic disc; therefore, the balance of the magnetic field is guaranteed, and the rotation stability is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of high-speed rotor test devices, and specifically relates to a high-speed rotor test device based on a non-contact magnetic coupling. Background Art

[0002] A high-speed rotor refers to a rotating component with a very high rotational speed during operation, commonly found in equipment such as aeroengines, gas turbines, and high-speed motors. A high-speed rotor test device is a dedicated device used to test the performance and reliability of high-speed rotors. It can simulate high-speed rotation conditions, measure parameters such as the vibration, temperature, and stress of the rotor, thereby evaluating its design and manufacturing quality, and verifying its stability and durability at high rotational speeds. A magnetic coupling is a non-contact coupling that uses magnetic force to transmit torque. It realizes power transmission through the magnetic field coupling between the permanent magnets at the active end and the driven end, and has advantages such as no wear, vibration damping and buffering, and overload protection. Compared with traditional rigid connection couplings, it is a more flexible connection method. As a non-contact power transmission element in a high-speed rotor test device, a magnetic coupling can isolate the mechanical vibration and impact between the driving motor and the tested high-speed rotor, provide a smooth driving force, and can achieve torque limitation and protection under overload conditions, thereby improving the test accuracy, extending the equipment life, and ensuring the test safety.

[0003] However, in the actual application process, when the volume of the magnetic coupling is limited, the transmitted torque is relatively small, and it is prone to out-of-step, affecting the stability and accuracy of the test. Moreover, when the magnetic force of the magnetic coupling retreats, the tested rotor is easily dropped and damaged. At the same time, the existing test devices can only perform alignment tests, and the test functions are relatively single, making it difficult to meet the requirements for comprehensively evaluating the performance of high-speed rotors.

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

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A high-speed rotor test device based on a non-contact magnetic coupling according to the present invention includes a bottom plate. One side of the upper surface of the bottom plate is fixedly connected with a column. One side of the column is fixedly installed with an adjustment mechanism. The outer surface of the adjustment 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. The edge of the upper surface of the moving plate is fixedly connected with a driving mechanism. The middle part of the upper surface of the moving plate is slidably connected with a stabilizing mechanism. The edge of the upper surface of the bottom plate is fixedly connected with a machine body. The bottom end inside the machine body is fixedly connected with a protection mechanism;

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

[0008] A clamping rod is fixedly connected to the inner side of the measuring ruler. Clamping rings adapted to the clamping rod are fixedly connected to both sides of the upper surface of the storage box.

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

[0010] The driving mechanism includes a vertical plate. The lower surface of the vertical plate is fixedly connected to the edge of the upper surface of the moving plate. One side of the vertical plate is fixedly connected with a third motor. The output end of the third motor is fixedly connected with a first connecting member. One side of the first connecting member is threadedly connected with a driving magnetic disk through a first bolt.

[0011] The protection mechanism includes a cylinder. One end of the cylinder is fixedly connected to the bottom end inside the machine body. The output end of the cylinder is fixedly connected with a moving block. The upper surface of the moving block is fixedly connected with an electric push rod. The top end of the electric push rod is fixedly connected with an attracting plate. The upper surface of the attracting plate is fixedly connected with an electromagnet.

[0012] Sliding rails are fixedly connected to both sides of the upper surface of the upper plate. Sliding blocks are slidably connected to the outer surfaces of the sliding rails. The upper surface of the sliding blocks is fixedly connected to one side of the lower surface of the moving plate.

[0013] A second connecting member is fixedly connected to the middle part inside the machine body. One side of the second connecting member is threadedly connected with a driven magnetic disk through a second bolt.

[0014] Both sides of the upper surface of the skateboard are fixedly connected with springs, the top ends of the springs are fixedly connected with inserting rods, and a plurality of hole grooves adapted to the inserting rods are formed on both sides of the upper surface of the moving plate.

[0015] Square grooves are formed on both sides of the bottom plate, a first retaining frame is slidably connected inside the square grooves, and a second retaining frame is slidably connected to one side of the first retaining frame.

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

[0017] 1. For a high-speed rotor test device based on a non-contact magnetic coupling described in the present invention, through the provided stabilizing mechanism, the magnetic ring is located on the periphery of the rotor, and the magnetic ring is an electromagnet. The position of the magnetic ring is measured by a measuring scale, the position of the magnetic ring is adjusted by the skateboard, and the magnetic force is controlled so that the magnetic field force generated by it cancels out the repulsive force between the active magnetic disk and the driven magnetic disk, thereby ensuring the balance of the magnetic field, improving the stability of its rotation, reducing vibration, improving the accuracy of test data, and the uniform magnetic field can improve the efficiency of the magnetic coupling, reduce the loss caused by excessive local magnetic field, and at the same time, the magnetic ring can also concentrate and enhance the magnetic field around the rotor, thereby increasing the torque force, avoiding out-of-step, and ensuring the adaptability of the test device.

[0018] 2. For a high-speed rotor test device based on a non-contact magnetic coupling described in the present invention, through the provided protection mechanism, when the magnetic ring, the active magnetic disk and the driven magnetic disk are withdrawn, the rotor can be adsorbed and fixed by the electromagnetic block to avoid its dropping and collision, resulting in damage.

[0019] 3. For a high-speed rotor test device based on a non-contact magnetic coupling described in the present invention, through the provided first motor, the first threaded rod and the adjustment mechanism, the distance and offset degree between the active magnetic disk and the driven magnetic disk can be adjusted to ensure that the device operates in the best state. At the same time, the movement states of the rotor being non-concentric and the magnetic field being non-aligned can also be tested, improving the diversity of the test of the test device. Description of the Drawings

[0020] The present invention will be further described below with reference to the drawings.

[0021] Figure 1 is a three-dimensional view of the present invention;

[0022] Figure 2 is a structural schematic diagram of the moving plate in the present invention;

[0023] Figure 3 is a structural schematic diagram of the magnetic ring in the present invention;

[0024] Figure 4It is a schematic structural diagram of the active magnetic disk in the present invention;

[0025] Figure 5 It is a schematic structural diagram of the attracting plate in the present invention;

[0026] Figure 6 It is a schematic structural diagram of the driven magnetic disk in the present invention.

[0027] In the figure: 1, bottom plate; 2, column; 3, upper plate; 4, first motor; 5, first threaded rod; 6, moving plate; 7, body; 8, sliding plate; 9, magnetic ring; 10, storage box; 11, measuring scale; 12, clamping rod; 13, clamping ring; 14, second motor; 15, transmission member; 16, second threaded rod; 17, vertical plate; 18, third motor; 19, first connecting member; 20, active magnetic disk; 21, cylinder; 22, moving block; 23, electric push rod; 24, attracting plate; 25, electromagnetic block; 26, slide rail; 27, slider; 28, second connecting member; 29, driven magnetic disk; 30, spring; 31, inserting rod; 32, first retaining frame; 33, second retaining frame. Specific embodiments

[0028] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0029] Refer to Figure 1 - Figure 6 The present invention provides three technical solutions:

[0030] Embodiment 1:

[0031] It includes a bottom plate 1, a column 2 is fixedly connected to one side of the upper surface of the bottom plate 1, an adjusting mechanism is fixedly installed on one side of the column 2, an upper plate 3 is threadedly connected to the outer surface of the adjusting mechanism, a first motor 4 is fixedly installed on one side of the upper plate 3, the output end of the first motor 4 is fixedly connected to a first threaded rod 5, 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, a body 7 is fixedly connected to the edge of the upper surface of the bottom plate 1, and a protection mechanism is fixedly connected to the bottom end inside the body 7;

[0032] The stabilizing mechanism includes a sliding plate 8. The lower surface of the sliding plate 8 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. A storage box 10 is fixedly connected to the upper surface of the magnetic ring 9. Measuring rulers 11 are slidably connected to both sides of the storage box 10. The magnetic ring 9 is positioned outside the rotor. The measuring rulers 11 measure the distances 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 to adjust its position. Moreover, the magnetic ring 9 is an electromagnet, which can control the magnetic force so that the magnetic field force generated by it cancels out the repulsive force between the active magnetic disk 20 and the driven magnetic disk 29, thus ensuring the balance of the magnetic field, improving the stability of its rotation, reducing vibration, improving the accuracy of test data. And the uniform magnetic field can improve the efficiency of the magnetic coupling, 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 out-of-step, and ensuring the adaptability of the test device.

[0033] A clamping rod 12 is fixedly connected to the inner side of the measuring ruler 11. Clamping rings 13 adapted to the clamping rod 12 are fixedly connected to both sides of the upper surface of the storage box 10. After the measuring ruler 11 finishes measuring, it can be pushed into the storage box 10 for storage. At this time, the clamping rod 12 is clamped inside the clamping ring 13 to prevent the measuring ruler 11 from sliding out by itself.

[0034] Embodiment 2:

[0035] Based on Embodiment 1: The adjusting mechanism includes a second motor 14. One side of the second motor 14 is fixedly installed on one side of the column 2. The output end of the second motor 14 is fixedly connected to a transmission member 15. One side of the transmission member 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 through the transmission member 15, so that the upper plate 3 moves left and right. Then, combined with the first motor 4 driving the moving plate 6 to move back and forth through 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 state. At the same time, the motion states of the rotor being non-concentric and the magnetic field being non-aligned can also be tested, improving the diversity of the test of the test device.

[0036] The active mechanism includes a vertical plate 17. The lower surface of the vertical plate 17 is fixedly connected to the edge of the upper surface of the moving plate 6. One side of the vertical plate 17 is fixedly connected to a third motor 18. The output end of the third motor 18 is fixedly connected to a first connecting member 19. One side of the first connecting member 19 is threadedly connected to an active magnetic disk 20 through a first bolt. When the external power supply starts the third motor 18, the active magnetic disk 20 is driven to rotate through the first connecting member 19, so that the magnetic field changes, and then the rotor rotates.

[0037] The protection mechanism includes a cylinder 21. One end of the cylinder 21 is fixedly connected to the bottom end inside the machine body 7. The output end of the cylinder 21 is fixedly connected with a moving block 22. The upper surface of the moving block 22 is fixedly connected with an electric push rod 23. The top end of the electric push rod 23 is fixedly connected with an attracting plate 24. The upper surface of the attracting plate 24 is fixedly connected with an electromagnetic block 25. When the magnetic force ring 9, the active magnetic disk 20 and the driven magnetic disk 29 are withdrawn, the cylinder 21 is started to drive the moving block 22 to move, so that the attracting plate 24 is located in the middle of the rotor. Then, the electric push rod 23 is started to push the attracting plate 24 to move upward to contact the rotor. Subsequently, the electromagnetic block 25 is energized to generate magnetic force, and the electromagnetic block 25 can adsorb and fix the rotor to prevent it from falling and colliding, resulting in damage.

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

[0039] The middle part inside the machine body 7 is fixedly connected with a second connecting piece 28. One side of the second connecting piece 28 is threadedly connected with a driven magnetic disk 29 through a second bolt. After the rotor is driven by the active magnetic disk 20, the torque is transmitted to the second connecting piece 28 through the magnetic force acting on the driven magnetic disk 29, driving the driven magnetic disk 29 to rotate together. Then, 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 the rotor performance, diagnose potential faults, and provide feedback for the control system, thereby ensuring the safety and stability of the test.

[0040] Both sides of the upper surface of the sliding plate 8 are fixedly connected with springs 30. The top ends of the springs 30 are fixedly connected with inserting rods 31. A number of hole grooves adapted to the inserting rods 31 are opened on both sides of the upper surface of the moving plate 6. The springs 30 pull the inserting rods 31 to move downward, so that the inserting rods 31 are inserted into the required hole grooves to fix the position of the sliding plate 8, preventing the generation of repulsive force in the magnetic field from driving the sliding plate 8 to move and causing the position of the magnetic force ring 9 to shift.

[0041] Square grooves are opened on both sides of the bottom plate 1. The inside of the square grooves is slidably connected with a first retaining frame 32. One side of the first retaining frame 32 is slidably connected with a second retaining frame 33. During the test, the first retaining frame 32 can shield the test area. Pulling the second retaining frame 33 out can expand the shielding range and improve the safety of the operator during the test.

[0042] Working principle: First, place the magnetic ring 9 on the periphery of the rotor. The measuring scale 11 measures the distances between both sides of the magnetic ring 9 and the driving magnetic disk 20 and the driven magnetic disk 29 respectively. Drive the magnetic ring 9 to move through the slide plate 8 to make the magnetic ring 9 in the required position. Then, the spring 30 pulls the insertion rod 31 to move downward, so that the insertion rod 31 is inserted into the required hole groove to fix the position of the slide plate 8. Subsequently, push the measuring scale 11 into the storage box 10 for storage. At this time, the clamping rod 12 is clamped inside the clamping ring 13 to prevent the measuring scale 11 from sliding out by itself. Then, the external power supply starts the second motor 14 to drive the second threaded rod 16 to rotate through the transmission member 15, so that the upper plate 3 moves left and right. Combined with the first motor 4 driving the moving plate 6 to move back and forth through the first threaded rod 5, the offset and distance between the driving magnetic disk 20 and the driven magnetic disk 29 can be adjusted. At the same time, the motion states of the rotor being non-concentric and the magnetic field being non-aligned can also be tested. And during this test process, it is possible to control whether the magnetic ring 9 is magnetized according to requirements. Secondly, place the first retaining frame 32 on the periphery of the test area to shield the test area. It is also possible to pull out the second retaining frame 33 to expand the shielding range. Subsequently, the external power supply starts the third motor 18 to drive the driving magnetic disk 20 to rotate through the first connecting member 19, so that the magnetic field changes, and then the rotor rotates. Then, through the magnetic force acting on the driven magnetic disk 29, the driven magnetic disk 29 is driven to rotate together, so as to transmit the torque to the second connecting member 28. Each sensor inside the machine body 7 detects the data and then transmits the data to the data acquisition system for recording and analysis. Finally, when the magnetic ring 9, the driving magnetic disk 20 and the driven magnetic disk 29 are removed, start the air cylinder 21 to drive the moving block 22 to move, so that the attracting plate 24 is in the middle of the rotor. Then start the electric push rod 23 to push the attracting plate 24 upward to contact the rotor. Subsequently, make the electromagnet 25 energized to generate magnetic force, and the electromagnet 25 can adsorb and fix the rotor to prevent it from falling.

[0043] The above front, back, left, right, up, and down are all based on the Figure 1 description in the attached drawings of the specification. Taking the perspective of the observer as the standard, the side of the device facing the observer is defined as the front, and the left side of the observer is defined as the left, and so on.

[0044] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present 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 by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed 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: The invention comprises a bottom plate (1), a column (2) is fixedly connected to one side of the upper surface of the bottom 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 to 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 bottom plate (1), and a protective mechanism is fixedly connected to the bottom end of the inner side of the organism (7); The stabilizing mechanism comprises a slide plate (8), the lower surface of the slide plate (8) is slidably connected to the middle part of the upper surface of the movable plate (6), the interior of the slide plate (8) is fixedly connected to a magnetic ring (9), the upper surface of the magnetic ring (9) is fixedly connected to a storage box (10), and both sides of the storage box (10) are slidably connected to a ruler (11).

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

3. The high-speed rotor testing device based on non-contact magnetic coupling according to claim 1 is characterized in that: The adjustment mechanism comprises a second motor (14), one side of the second motor (14) is fixedly mounted on one side of the column (2), an output end of the second motor (14) is fixedly connected to a transmission member (15), one side of the transmission member (15) is fixedly connected to a second threaded rod (16), and an outer surface of the second threaded rod (16) is threadedly connected to the middle portion of the lower surface of the moving plate (6).

4. The high-speed rotor testing device based on non-contact magnetic coupling according to claim 1 is characterized in that: The active mechanism comprises a vertical plate (17), the lower surface of the vertical plate (17) is fixedly connected to the edge of the upper surface of the movable plate (6), one side of the vertical plate (17) is fixedly connected to a third motor (18), the output end of the third motor (18) is fixedly connected to a first connecting member (19), and one side of the first connecting member (19) is threadedly connected to an active magnetic disk (20) via a first bolt.

5. The high-speed rotor testing device based on non-contact magnetic coupling according to claim 1 is characterized in that: The protection mechanism comprises a cylinder (21), one end of the cylinder (21) is fixedly connected to the bottom end of the inner side of the machine body (7), the output end of the cylinder (21) is fixedly connected to a moving block (22), the upper surface of the moving block (22) is fixedly connected to an electric push rod (23), the top end of the electric push rod (23) is fixedly connected to an attraction plate (24), and the upper surface of the attraction plate (24) is fixedly connected to an electromagnetic block (25).

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

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

8. The high-speed rotor testing device based on 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), an insertion rod (31) is fixedly connected to the top of the spring (30), and a plurality of holes and grooves matching the insertion rod (31) are formed on both sides of the upper surface of the movable plate (6).

9. The high-speed rotor testing device based on non-contact magnetic coupling according to claim 1, characterized in that: Square grooves are provided on both sides of the bottom plate (1), a first stop frame (32) is slidably connected inside the square groove, and a second stop frame (33) is slidably connected to one side of the first stop frame (32).

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