Permanent magnet electromagnetic levitation steam turbine generator
By using a permanent magnet electromagnetic levitation structure and real-time magnetic field adjustment, the problems of friction loss and high maintenance costs of traditional steam turbine generator sets have been solved, achieving efficient and stable rotor suspension support and reducing energy loss and maintenance costs.
Patent Information
- Application Number
- CN202511476820.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2045-10-16
AI Technical Summary
In traditional steam turbine generator sets, sliding bearings suffer from problems such as high frictional losses, system complexity, high fire risk, and high maintenance costs; while magnetic levitation bearings suffer from drawbacks such as system complexity, high cost, and insufficient safety during power outages.
The rotor is supported by a permanent magnet electromagnetic levitation structure. The rotor is suspended in a non-contact manner by the magnetic force between the permanent magnet ring and the permanent magnet block. The magnetic field force is monitored and adjusted in real time by a displacement sensor to ensure stable suspension of the rotor. The anti-detachment device provides temporary mechanical support to avoid mechanical friction and vibration.
It achieves contactless support, reduces energy loss, improves power generation efficiency, extends equipment life, enhances operational stability and reliability, and reduces maintenance costs.
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Figure CN120955974B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of generator sets, and particularly to permanent magnet electromagnetic levitation steam turbine generators. Background Technology
[0002] As the core equipment of the modern power industry, steam turbine generator sets are widely used in thermal power generation, nuclear power generation, large ship power and other fields. The reliability, efficiency and maintenance cost of their operation are directly related to the economy and safety of the entire energy system. In traditional steam turbine generator sets, the rotor system is its heart component. The high-speed rotating rotor is usually supported by sliding bearings. Although the Babbitt alloy bearings currently used are technically mature, they have a series of inherent defects in actual operation.
[0003] Although an oil film exists between the rotor and bearing shells during generator operation, direct contact between the metal surfaces is unavoidable, especially during startup, shutdown, and low-speed operation, resulting in significant mechanical friction. This not only causes additional power loss and reduces unit efficiency but also leads to wear on the bearing shells and journals. Furthermore, the lubrication system is complex and risky. To form a lubricating oil film, an extremely complex system of top-mounted bearing oil, lubricating oil, and sealing oil must be installed, including oil pumps, oil coolers, filters, and a vast oil pipeline network. This system not only occupies a large area and has a high initial investment but also poses a fire hazard. If the oil system leaks, contact between high-temperature components and the lubricating oil can easily cause a fire, a major contributing factor to significant safety accidents in power plants. Vibration and stability issues also arise: the dynamic characteristics of sliding bearings are complex, and when passing critical speeds or subjected to external disturbances, unstable phenomena such as oil film oscillations can easily occur, leading to increased unit vibration and threatening safe operation. At the same time, the damping characteristics of the bearing shells have limited ability to control vibration. Overall maintenance costs are high, and bearing shells, as vulnerable parts, require regular inspection, scraping, and replacement. Maintenance of sliding bearings requires disassembling the cylinder and hoisting the rotor, a cumbersome process with long downtime, heavy maintenance workload, and high costs. To overcome these shortcomings, the industry has explored new technologies, such as magnetic levitation bearings. Magnetic levitation bearings use actively controlled electromagnetic force to completely levitate the rotor, achieving contactless support and fundamentally eliminating mechanical friction. However, magnetic levitation bearing technology itself has significant drawbacks: firstly, the system is extremely complex, requiring multiple sets of electromagnets, high-precision displacement sensors, and high-speed digital controllers, resulting in high costs; secondly, its levitation force relies entirely on external electrical energy and the control system. In extreme cases of power outages or control system failures, a mechanical backup bearing must support the rotor, but the backup bearing may experience severe impact with the high-speed falling rotor, posing a safety hazard.
[0004] Therefore, existing sliding bearings suffer from high frictional losses, system complexity, fire risks, and high maintenance costs; while advanced magnetic levitation bearings are characterized by system complexity, high cost, and insufficient safety during power outages. The industry urgently needs a new turbine generator rotor support solution that can achieve contactless operation, reduce maintenance costs, and possess high reliability and safety. Summary of the Invention
[0005] The main objective of this invention is to provide a permanent magnet electromagnetic levitation steam turbine generator, which can effectively solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:
[0007] A permanent magnet electromagnetic levitation steam turbine generator includes a base plate, a generator set base, a stator block, stator coils, pole windings, and end shafts. The generator set base is fixedly installed on the upper end of the base plate. The stator block is fixedly installed on the inner side of the generator set base. The stator coils are wound on the inner side of the stator block. Two end shafts are respectively fixedly installed at the front and rear ends of the pole windings, and the end shafts are fixedly installed at the center of the pole windings. Couplings are fixedly installed at the front and rear ends of the two end shafts. Support shafts are fixedly installed at the front and rear ends of the two couplings. Permanent magnet sleeves are fixedly installed on the outer side of the support shafts. The upper end of the base plate is located in front of the generator set base and... A support base is fixedly installed at the rear. A fixing collar is fixedly installed at the upper end of the support base. An installation sleeve is fixedly installed inside the support base and the fixing collar. An adjustment groove is opened on the outside of the installation sleeve. A movable slot is opened on the inner wall of the installation sleeve. Threaded rings are threadedly installed at the front and rear of the inside of the installation sleeve. Adjusting rings are movably installed at opposite ends of the two threaded rings. Multiple screw seats are fixedly installed on the inner wall of the adjusting ring. Adjusting screws are threadedly installed inside the screw seats. Two magnetic levitation structures are movably installed in the middle of the two threaded rings inside the installation sleeve. A detection mechanism is fixedly installed between the two magnetic levitation structures.
[0008] As a further embodiment of the present invention, a support frame is fixedly installed at the upper end of the placement base in front of the support seat, an installation plate is fixedly installed on the inner side of the support frame, an anti-detachment sleeve is movably installed at the center of the installation plate, the anti-detachment sleeve penetrates the installation plate, an anti-detachment rod is welded to the front end of the front support shaft, a turbine shaft connector is fixedly installed at the rear end of the rear support shaft, and the anti-detachment sleeve is located outside the anti-detachment rod.
[0009] As a further embodiment of the present invention, a rotor magnetic partition is fixedly installed at the upper end of the placement base plate between the unit base and the support base, and the rotor magnetic partition is sleeved on the outside of the support shaft.
[0010] As a further embodiment of the present invention, the inner side of the threaded ring is integrally formed with a rotating frame, and the adjusting ring is located inside the mounting sleeve and rotates around the rotating frame.
[0011] As a further embodiment of the present invention, the magnetic levitation structure includes a support ring, a magnet mounting base, a conductive coil, a permanent magnet block, and a snap-fit protrusion. The support ring is movably installed inside the mounting sleeve, multiple magnet mounting bases are fixedly installed on the inner wall of the support ring, the permanent magnet block is fixedly installed on the inner side of the magnet mounting base, the conductive coil is sleeved on the outer side of the magnet mounting base, and the snap-fit protrusion is integrally formed on the outer side of the support ring.
[0012] As a further embodiment of the present invention, the snap-fit protrusion is inserted into the movable slot for movable connection, and multiple magnet mounting seats are arranged in a circle around the center of the support ring, with the side of the permanent magnet block away from the magnet mounting seat being arc-shaped.
[0013] As a further embodiment of the present invention, the adjusting screw passes through the screw seat, and one end of the adjusting screw is movably connected to the support ring.
[0014] As a further embodiment of the present invention, the detection mechanism includes a suspended magnetic partition, a connecting block, a sensor mounting bracket, a displacement sensor, a wire adjusting rod, and a connecting wire. The two suspended magnetic partitions are located between the front and rear support rings. Multiple connecting blocks are fixedly installed at the front and rear ends of the two suspended magnetic partitions. Four sensor mounting brackets are fixedly installed between the two suspended magnetic partitions. The displacement sensor is threadedly installed inside the sensor mounting bracket. The wire adjusting rod is fixedly installed at one end of the displacement sensor, and the connecting wire is fixedly installed at one end of the wire adjusting rod.
[0015] As a further embodiment of the present invention, the suspended magnetic partition is located inside the mounting sleeve, the connecting blocks at the front and rear are fixedly connected to the two support rings, the four displacement sensors are arranged in a cross shape, and the wire adjustment rod passes through the inner side of the adjustment groove.
[0016] As a further embodiment of the present invention, the support shaft passes through the center of the mounting sleeve, the permanent magnet ring is located at the center of multiple permanent magnet blocks and four displacement sensors, and the detection end of the displacement sensor is aligned with the permanent magnet ring.
[0017] Compared with the prior art, the present invention has the following beneficial effects: by the magnetic force between the permanent magnet sleeve set on the outside of the support shaft and the permanent magnet block in the magnetic levitation structure, non-contact levitation support of the rotor system is realized. After the conductive coil is energized, the permanent magnet block generates a controllable magnetic field, which forms a stable magnetic force balance with the permanent magnet sleeve, so that the rotor is in a levitation state. This completely avoids the mechanical friction of the traditional rotor bearing pressure structure, thereby greatly reducing energy loss, improving power generation efficiency, and extending the service life of the equipment.
[0018] The displacement sensors arranged in a cross shape in the detection mechanism monitor the position deviation of the permanent magnet ring in real time. The end of the displacement sensor is aligned with the permanent magnet ring through the adjustment groove. The detection data is transmitted to the control system through the connecting wire. Once the deviation is detected, the position of the magnetic levitation structure can be finely adjusted by adjusting the screw or the current of the conductive coil to correct the magnetic field force of the permanent magnet in real time, ensuring that the rotor is always in the center position, effectively preventing vibration and uneven wear, and improving the stability of unit operation.
[0019] By rotating the threaded ring to drive the adjustment ring to move, the overall front-to-back displacement of the magnetic levitation structure is achieved, and the overall dynamic adjustment of the levitation structure is carried out to ensure that the rotor eccentricity meets the power generation requirements, adapt to permanent magnet sleeves of different specifications or compensate for wear after long-term operation. The threaded fit between the adjusting screw and the screw seat can independently adjust the local position of the support ring, realize precise control of the wrapping angle of the permanent magnet block on the permanent magnet sleeve, and further improve the levitation accuracy.
[0020] The rotor magnetic partition and the suspension magnetic partition isolate the unit's magnetic field from the detection mechanism to avoid mutual interference and ensure the independence of power generation and monitoring functions. The cooperation between the anti-derailment rod and the anti-derailment sleeve can provide temporary mechanical support in the event of an unexpected failure of the magnetic levitation system, preventing direct collision damage to the support shaft and improving system reliability. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of the permanent magnet electromagnetic levitation steam turbine generator of the present invention;
[0022] Figure 2 This is a side view of the permanent magnet electromagnetic levitation steam turbine generator of the present invention;
[0023] Figure 3 This is an enlarged view of the generator set base in the permanent magnet electromagnetic levitation steam turbine generator of the present invention;
[0024] Figure 4 This is a side view of the support base in the permanent magnet electromagnetic levitation steam turbine generator of the present invention;
[0025] Figure 5 This is an enlarged view of the support base in the permanent magnet electromagnetic levitation steam turbine generator of the present invention;
[0026] Figure 6 This is a cross-sectional view of the mounting sleeve in the permanent magnet electromagnetic levitation steam turbine generator of the present invention;
[0027] Figure 7 This is an enlarged view of the threaded ring in the permanent magnet electromagnetic levitation steam turbine generator of the present invention;
[0028] Figure 8 This is an enlarged view of the magnetic levitation structure in the permanent magnet electromagnetic levitation steam turbine generator of the present invention;
[0029] Figure 9 This is an enlarged view of the detection mechanism in the permanent magnet electromagnetic levitation steam turbine generator of the present invention.
[0030] In the diagram: 1. Base plate; 2. Unit base; 3. Stator block; 4. Stator coil; 5. Magnetic pole winding; 6. End shaft; 7. Coupling; 8. Support shaft; 9. Permanent magnet sleeve; 10. Anti-detachment rod; 11. Turbine shaft connector; 12. Support seat; 13. Fixing collar; 14. Mounting sleeve; 15. Adjusting groove; 16. Moving slot; 17. Threaded ring; 18. Rotating frame; 19. Adjusting ring; 20. Screw seat; 21. 21. Adjusting screw; 22. Magnetic levitation structure; 23. Support ring; 24. Magnet mounting base; 25. Conductive coil; 26. Permanent magnet block; 27. Snap-fit protrusion; 28. Detection mechanism; 29. Suspended magnetic partition; 30. Connecting block; 31. Sensor mounting bracket; 32. Displacement sensor; 33. Threading adjustment rod; 34. Connecting wire; 35. Rotor magnetic partition; 36. Support frame; 37. Mounting plate; 38. Anti-detachment sleeve. Detailed Implementation
[0031] 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.
[0032] like Figures 1-9 As shown, the permanent magnet electromagnetic levitation steam turbine generator includes a base plate 1, a generator set 2, a stator block 3, a stator coil 4, a magnetic pole winding 5, and end shafts 6. The generator set 2 is fixedly installed on the upper end of the base plate 1. The stator block 3 is fixedly installed on the inner side of the generator set 2. The stator coil 4 is wound on the inner side of the stator block 3. The magnetic pole winding 5 is movably installed in the center of the stator block 3. Two end shafts 6 are fixedly installed at the front and rear ends of the magnetic pole winding 5, respectively. Couplings 7 are fixedly installed at the front and rear ends of the two end shafts 6. Support shafts 8 are fixedly installed at the front and rear ends of the two couplings 7. Permanent magnet sleeves 9 are fixedly installed on the outer side of the support shafts 8. The upper end of the base plate 1 is located in front of and behind the generator set 2 and is fixedly installed with... The device includes a support base 12, with a fixing collar 13 fixedly installed at the upper end of the support base 12. An installation sleeve 14 is fixedly installed inside the support base 12 and the fixing collar 13. An adjustment groove 15 is provided on the outside of the installation sleeve 14, and a movable slot 16 is provided on the inner wall of the installation sleeve 14. Threaded rings 17 are threadedly installed at the front and rear of the inside of the installation sleeve 14. Adjusting rings 19 are movably installed at opposite ends of the two threaded rings 17. Multiple screw seats 20 are fixedly installed on the inner wall of the adjusting rings 19. Adjusting screws 21 are threadedly installed inside the screw seats 20. Two magnetic levitation structures 22 are movably installed inside the installation sleeve 14, located between the two threaded rings 17. A detection mechanism 28 is fixedly installed between the two magnetic levitation structures 22.
[0033] Please refer to this carefully. Figures 1-5 A support frame 36 is fixedly installed at the upper end of the base plate 1 in front of the support seat 12. An installation plate 37 is fixedly installed on the inner side of the support frame 36. An anti-detachment sleeve 38 is movably installed at the center of the installation plate 37. The anti-detachment sleeve 38 passes through the installation plate 37. An anti-detachment rod 10 is welded to the front end of the front support shaft 8. A turbine shaft connector 11 is fixedly installed at the rear end of the rear support shaft 8. The anti-detachment sleeve 38 is located outside the anti-detachment rod 10.
[0034] Specifically, the support shaft 8 and the end shaft 6 are central shafts. The turbine shaft connector 11 connects to the turbine assembly that outputs power, driving the support shaft 8 to rotate. The support shaft 8 drives the end shaft 6 to rotate through the coupling 7. The end shaft 6 drives the magnetic pole winding 5 to rotate within the stator block 3 and stator coil 4 to generate electricity. When the support shaft 8 loses its levitation support, the anti-detachment rod 10 falls into the inner wall of the anti-detachment sleeve 38 to provide temporary support for the support shaft 8.
[0035] Please refer to this carefully. Figure 1 , Figure 2 and Figure 4 The upper end of the base plate 1 is located between the unit base 2 and the support base 12, and a rotor magnetic partition 35 is fixedly installed. The rotor magnetic partition 35 is sleeved on the outside of the support shaft 8.
[0036] Specifically, when the permanent magnet 26 is energized and generates magnetism, the rotor magnetic partition 35 blocks the front and rear of the two support shafts 8 to isolate the magnetism and prevent it from affecting the operation of the magnetic pole winding 5.
[0037] Please refer to this carefully. Figures 6-7 The inner side of the threaded ring 17 is integrally formed with a rotating frame 18, and the adjusting ring 19 is located inside the mounting sleeve 14 and rotates around the rotating frame 18.
[0038] Specifically, the rotating frame 18 drives the threaded ring 17 to rotate. The rotation of the threaded ring 17 drives the support ring 23 to move through the connection of the adjusting ring 19, the screw seat 20 and the adjusting screw 21, thereby adjusting the front and rear position of the support ring 23 in the mounting sleeve 14. This allows the permanent magnet block 26 and the displacement sensor 32 to adjust the working position of the permanent magnet sleeve 9, and achieves levitation support and deviation detection at different positions of the permanent magnet sleeve 9.
[0039] Please refer to this carefully. Figure 8 The magnetic levitation structure 22 includes a support ring 23, a magnet mounting base 24, a conductive coil 25, a permanent magnet block 26, and a snap-fit protrusion 27. The support ring 23 is movably installed inside the mounting sleeve 14. Multiple magnet mounting bases 24 are fixedly installed on the inner wall of the support ring 23. The permanent magnet block 26 is fixedly installed on the inner side of the magnet mounting base 24. The conductive coil 25 is sleeved on the outer side of the magnet mounting base 24. The snap-fit protrusion 27 is integrally formed on the outer side of the support ring 23.
[0040] Please refer to this carefully. Figures 6-8 The snap-fit protrusion 27 is inserted into the movable slot 16 for movable connection. Multiple magnet mounting bases 24 are arranged in a circle around the center of the support ring 23. The permanent magnet block 26 is arranged in an arc shape on the side away from the magnet mounting base 24.
[0041] Specifically, the movable connection between the snap-fit protrusion 27 and the movable slot 16 serves to position the support ring 23 back and forth, and the conductive coil 25 on the outside of the magnet mounting base 24 generates magnetism in the permanent magnet block 26 after being energized.
[0042] Please refer to this carefully. Figures 6-8 The adjusting screw 21 passes through the screw seat 20, and one end of the adjusting screw 21 is movably connected to the support ring 23.
[0043] Specifically, when a single adjusting screw 21 rotates, the adjusting screw 21 rotates in and out around the screw seat 20, thereby actuating a corner of the support ring 23 to move, thus enabling fine-tuning of the angle of the support ring 23 and the internal permanent magnet block 26.
[0044] Please refer to this carefully. Figure 6 , Figure 8 and Figure 9 The detection mechanism 28 includes a suspended magnetic partition 29, a connecting block 30, a sensor mounting bracket 31, a displacement sensor 32, a wire adjusting rod 33, and a connecting wire 34. The two suspended magnetic partitions 29 are located between the front and rear support rings 23. Multiple connecting blocks 30 are fixedly installed at the front and rear ends of the two suspended magnetic partitions 29. Four sensor mounting brackets 31 are fixedly installed between the two suspended magnetic partitions 29. The displacement sensor 32 is threadedly installed inside the sensor mounting bracket 31. The wire adjusting rod 33 is fixedly installed at one end of the displacement sensor 32. The connecting wire 34 is fixedly installed at one end of the wire adjusting rod 33.
[0045] Please refer to this carefully. Figure 6 , Figure 8 and Figure 9 The suspended magnetic partition 29 is located inside the mounting sleeve 14. The front and rear connecting blocks 30 are fixedly connected to the two support rings 23. The four displacement sensors 32 are arranged in a cross shape. The wire adjustment rod 33 passes through the inner side of the adjustment groove 15.
[0046] Specifically, two suspended magnetic partitions 29 are wrapped around the outside of the displacement sensor 32. The suspended magnetic partitions 29 isolate the magnetism of the permanent magnet block 26 to prevent the magnetism of the permanent magnet block 26 from affecting the operation of the displacement sensor 32. When the wire adjusting rod 33 and the displacement sensor 32 rotate, the displacement sensor 32 rotates in and out of the sensor mounting bracket 31, thereby adjusting the distance between the displacement sensor 32 and the permanent magnet ring 9.
[0047] Please refer to this carefully. Figures 5-9 The support shaft 8 passes through the center of the mounting sleeve 14, and the permanent magnet ring 9 is located at the center of multiple permanent magnet blocks 26 and four displacement sensors 32. The detection end of the displacement sensor 32 is aligned with the permanent magnet ring 9.
[0048] Specifically, the permanent magnet block 26 at the bottom generates a magnetic field to suspend the permanent magnet ring 9 in a predetermined position. Gravity and electromagnetic force are balanced to maintain a stable gap, thus keeping the permanent magnet ring 9 and the support shaft 8 in a suspended state. The support shaft 8 is connected to the end shaft 6, thereby providing suspension support for the end shaft 6. The end of the displacement sensor 32 detects the center deviation of the permanent magnet ring 9. The power supply of the permanent magnet block 26 is adjusted to control the magnetic field strength, thereby changing the suspension support force of a single permanent magnet block 26 on the permanent magnet ring 9, and thus adjusting the center deviation of the permanent magnet ring 9.
[0049] 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 this invention is defined by the appended claims and their equivalents.
Claims
1. A permanent magnet electromagnetic levitation steam turbine generator, comprising a base plate (1), a generator set base (2), a stator block (3), a stator coil (4), a magnetic pole winding (5), and end shafts (6), wherein the generator set base (2) is fixedly installed on the upper end of the base plate (1), the stator block (3) is fixedly installed on the inner side of the generator set base (2), the stator coil (4) is wound on the inner side of the stator block (3), the magnetic pole winding (5) is movably installed at the inner center of the stator block (3), and the two end shafts (6) are respectively fixedly installed at the front end and the rear end of the magnetic pole winding (5), characterized in that: The front end and the rear end of the two end shafts (6) are fixedly installed with shaft couplings (7), the front end and the rear end of the two shaft couplings (7) are fixedly installed with support shafts (8), the outer side of the support shaft (8) is fixedly installed with a permanent magnet coil sleeve (9), the upper end of the placing bottom plate (1) is fixedly installed with support seats (12) in front of and behind the unit seat (2), the upper end of the support seat (12) is fixedly installed with a fixed sleeve ring (13), the inside of the support seat (12) and the fixed sleeve ring (13) is fixedly installed with a mounting sleeve (14), the outside of the mounting sleeve (14) is provided with an adjusting groove (15), the inner wall of the mounting sleeve (14) is provided with a moving clamping groove (16), the inside of the mounting sleeve (14) is screwedly installed with threaded rings (17) in front and behind, the opposite ends of the two threaded rings (17) are movably installed with adjusting rings (19), the inner wall of the adjusting ring (19) is fixedly installed with a plurality of screw rod bases (20), the inside of the screw rod base (20) is screwedly installed with an adjusting screw rod (21), the inside of the mounting sleeve (14) is movably installed with two magnetic suspension structures (22) between the two threaded rings (17), two magnetic suspension structures (22) are fixedly installed with a detection mechanism (28) between them; The magnetic suspension structure (22) comprises a support ring (23), a magnet mounting seat (24), a conductive coil (25), a permanent magnet block (26) and a clamping protrusion (27), the support ring (23) is movably installed in the mounting sleeve (14), a plurality of magnet mounting seats (24) are fixedly installed on the inner wall of the support ring (23), the permanent magnet block (26) is fixedly installed on the inner side of the magnet mounting seat (24), the conductive coil (25) is sleeved on the outer side of the magnet mounting seat (24), and the clamping protrusion (27) is integrally formed on the outer side of the support ring (23); The clamping protrusion (27) is movably connected by being inserted into the moving clamping groove (16), a plurality of magnet mounting seats (24) are circularly arranged around the center of the support ring (23), and one side of the permanent magnet block (26) away from the magnet mounting seat (24) is circularly arranged; The detection mechanism (28) comprises a suspension magnetic partition plate (29), a connecting block (30), a sensor mounting frame (31), a displacement sensor (32), a wire adjusting rod (33) and a connecting wire (34), two suspension magnetic partition plates (29) are located between the front and rear support rings (23), a plurality of connecting blocks (30) are fixedly installed at the front end and the rear end of the two suspension magnetic partition plates (29), four sensor mounting frames (31) are fixedly installed between the two suspension magnetic partition plates (29), the displacement sensor (32) is screwedly installed on the inner side of the sensor mounting frame (31), the wire adjusting rod (33) is fixedly installed at one end of the displacement sensor (32), and the connecting wire (34) is fixedly installed at one end of the wire adjusting rod (33). The suspension magnetic partition (29) is located in the mounting sleeve (14), the front and rear connecting blocks (30) are fixedly connected with the two support rings (23), the four displacement sensors (32) are arranged in a cross shape, and the threading adjusting rod (33) penetrates into the inside of the adjusting groove (15).
2. The permanent magnet electromagnetic maglev turbo-generator according to claim 1, characterized in that: The upper end of the placement bottom plate (1) is fixedly provided with a support frame (36) in front of the support base (12), the inner side of the support frame (36) is fixedly provided with a mounting plate (37), the center of the mounting plate (37) is movably provided with an anti-off sleeve (38), the anti-off sleeve (38) penetrates through the mounting plate (37), the front end of the front support shaft (8) is welded with an anti-off rod (10), the rear end of the rear support shaft (8) is fixedly provided with a steam turbine shaft adapter (11), and the anti-off sleeve (38) is located outside the anti-off rod (10).
3. The permanent magnet electromagnetic maglev turbo-generator as claimed in claim 1, characterized in that: The upper end of the placement bottom plate (1) is fixedly provided with a rotor magnetic partition (35) between the unit base (2) and the support base (12), and the rotor magnetic partition (35) is sleeved outside the support shaft (8).
4. The permanent magnet electromagnetic maglev turbo-generator as set forth in claim 1, wherein: The inner side of the threaded ring (17) is integrally provided with a rotating frame (18), the adjusting ring (19) is located inside the mounting sleeve (14) and rotates around the rotating frame (18).
5. The permanent magnet electromagnetic maglev turbo-generator as set forth in claim 1, wherein: The adjusting screw rod (21) penetrates through the screw rod base (20), and one end of the adjusting screw rod (21) is movably connected with the support ring (23).
6. The permanent magnet electromagnetic maglev turbo-generator as set forth in claim 1, wherein: The support shaft (8) penetrates through the center of the mounting sleeve (14), the permanent magnet ring sleeve (9) is located in the center of the plurality of permanent magnet blocks (26) and the four displacement sensors (32), and the detection end of the displacement sensor (32) is aligned with the permanent magnet ring sleeve (9).
Citation Information
Patent Citations
High speed magnetic suspension permanent magnet motor without bearing
CN101207309A
Superconducting-permanent magnet mixed magnetic suspension low-temperature disc type immersed pump
CN112994525A