Shaft generator based on permanent magnet technology

Abstract

This invention relates to the field of generator technology, specifically a shaft-driven generator based on permanent magnet technology, comprising a generator body, a protective structure, an adjustment structure, a lubrication structure, a mounting structure, an anti-wear structure, a junction box, a maintenance cover, a main shaft, flanges, and a drive shaft. The lubrication structure facilitates the reduction of friction and wear on the flange mating surfaces, preventing component damage caused by rigid connections and significantly extending the service life of the flange connection. The adjustment structure facilitates the adjustment of the protective components in the protective structure. Through the coordinated use of the first sealing ring, connecting ring, guide ring, and protective cover in the protective structure, external dust can be effectively blocked from entering the interior of the protective cover, preventing dust from adhering between the two flanges and aggravating wear. This not only improves the service life of the flanges but also ensures the stability of power transmission and reduces the frequency of equipment downtime and maintenance due to flange wear. The anti-wear structure prevents short-circuit faults caused by wear on the cable insulation layer.

Description

Technical Field

[0001] This invention relates to the field of generator technology, specifically to a shaft-driven generator based on permanent magnet technology. Background Technology

[0002] A permanent magnet generator is a power generation device that uses permanent magnets to replace traditional electrically excited windings to generate a magnetic field. Its core principle is that permanent magnets on the rotor (such as high-performance permanent magnet materials like neodymium iron boron and samarium cobalt) form a constant magnetic field. When the rotor rotates under the drive of the power shaft, the magnetic field cuts the stator windings, inducing an electromotive force in the windings according to the law of electromagnetic induction, thereby outputting electrical energy. Compared to traditional electrically excited generators, permanent magnet generators do not require additional excitation power supplies and excitation windings, offering advantages such as a more compact structure, smaller size, higher efficiency, and faster start-up response. They are widely used in scenarios such as ship shaft-driven power generation, automotive auxiliary power generation, and emergency power supply for construction machinery, and are particularly suitable for operating conditions with high requirements for lightweight equipment and low energy consumption.

[0003] Then, during the installation of a permanent magnet shaft-driven generator, the external equipment's power shaft and the generator's main shaft are often rigidly connected via two flanges. During operation, fluctuations in the power shaft's speed and vibrations are directly transmitted to the flange mating surfaces, easily leading to relative sliding friction between the two flanges. Long-term operation will exacerbate wear on the mating surfaces and may also cause flange deformation, bolt loosening, and affect transmission stability. Furthermore, the mating surfaces are difficult to completely seal during flange processing and assembly, leaving gaps. In dusty environments such as mines and ship decks, external dust can easily enter these gaps with airflow or equipment vibration and accumulate, forming an abrasive layer. Increasing the friction coefficient further exacerbates wear on the mating surfaces and shortens the service life of the flange. In addition, the permanent magnet shaft generator junction box is used to collect the stator winding leads. The cables need to pass through the junction box inlet to connect to the external load. The existing junction box cable inlets are mostly rigid metal holes. When the equipment vibrates (such as the turbulence of a ship or the vibration of construction machinery), the cables will repeatedly rub against the edge of the junction box inlet and the box wall, causing wear on the cable insulation layer. At the same time, the cables are repeatedly bent with vibration, which can easily cause fatigue cracks at the bending points, eventually leading to cable short circuit faults and affecting the normal power supply of the generator. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a shaft-driven generator based on permanent magnet technology.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a shaft-driven generator based on permanent magnet technology, comprising a generator body, a main shaft rotatably connected to the generator body, a flange fixedly connected to the main shaft, another flange mounted on the flange, a drive shaft fixedly connected to the other flange, a protective structure mounted on the generator body, a junction box fixedly connected to the generator body, an anti-wear structure provided on the junction box, and a lubrication structure installed between the two flanges;

[0006] The protective structure includes a mounting plate fixedly connected to the generator body and two sliders slidably connected to the mounting plate. Two connecting blocks are slidably connected to the sliders, and a protective cover is fixedly connected to each connecting block. One of the protective covers is fixedly connected to a guide ring, and the other protective cover is fixedly connected to a connecting ring. The guide ring and the connecting ring are slidably connected. A rotating ring is rotatably connected to the flange, and a first sealing ring is fixedly connected to the rotating ring. The protective cover is provided with a sealing groove, and the position of the protective cover is adjusted by an adjustment structure.

[0007] Specifically, the adjustment structure includes two guide frames fixedly connected to the mounting plate and two connecting plates slidably connected between the two guide frames. Each pair of connecting blocks is slidably connected to one connecting plate. A first lead screw is rotatably connected to one of the guide frames. The connecting plate is threadedly connected to the first lead screw, and the threads at both ends of the first lead screw are in opposite directions.

[0008] Specifically, a second lead screw is rotatably connected to the mounting plate, the slider is threadedly connected to the second lead screw, the two ends of the second lead screw have opposite thread directions, and a guide shaft is fixedly connected to another guide frame, the connecting plate is slidably connected to the guide shaft.

[0009] Specifically, the lubrication structure includes a slip ring slidably connected to one of the flanges and a second sealing ring fixedly connected to the slip ring. The second sealing ring engages with the other flange, and a grease nipple is installed on the second sealing ring.

[0010] Specifically, a third lead screw is threaded onto the slip ring, and the third lead screw is threadedly connected to the flange.

[0011] Specifically, an inspection cover is installed on the junction box via an installation structure. The installation structure includes two positioning rods fixedly connected to the inspection cover and two positioning sleeves fixedly connected to the junction box. The positioning rods are inserted into the positioning sleeves, and an installation block is slidably connected to the positioning rod. The installation block has an inclined surface and limits the positioning rod.

[0012] Specifically, a fixing plate is fixedly connected to the mounting block, the fixing plate is slidably connected to the positioning rod, a push plate is fixedly connected to the fixing plate, a guide post is fixedly connected inside the positioning rod, the fixing plate is slidably connected to the guide post, and a spring is fixedly connected between the fixing plate and the positioning rod.

[0013] Specifically, the anti-wear structure includes three air rings fixedly connected to the junction box and a hose fixedly connected to the air rings. A pressure box is fixedly connected to the junction box, and the other end of the hose is installed on the pressure box. A piston is slidably connected inside the pressure box.

[0014] Specifically, a threaded sleeve is fixedly connected to the piston, a screw is threadedly connected to the threaded sleeve, the screw abuts against the stop block, and the stop block is fixedly connected to the inspection cover.

[0015] Specifically, a tension spring is fixedly connected between the piston and the booster box, and the booster box is provided with an air inlet.

[0016] The beneficial effects of this invention are:

[0017] (1) The shaft-driven generator based on permanent magnet technology described in this invention has a lubrication structure between the two flanges. The lubrication structure helps to reduce friction and wear on the flange mating surfaces, avoids component damage caused by rigid connection, and greatly improves the service life of flange connection.

[0018] (2) The shaft-driven generator based on permanent magnet technology described in this invention has a protective structure on the generator body. The position of the protective cover is adjusted by the adjustment structure. The adjustment structure facilitates the adjustment of the protective components in the protective structure. Through the cooperation of the first sealing ring, connecting ring, guide ring and protective cover in the protective structure, external dust can be effectively blocked from entering the interior of the protective cover, avoiding dust adhering between the two flanges and aggravating wear. This not only improves the service life of the flanges, but also ensures the stability of power transmission of the generator body and reduces the frequency of equipment downtime and maintenance due to flange wear.

[0019] (3) The shaft-driven generator based on permanent magnet technology described in this invention has an anti-wear structure on the junction box and an inspection cover installed on the junction box through the installation structure. The anti-wear structure avoids direct friction between the cable and the inner wall of the junction box, preventing short circuit faults caused by wear of the cable insulation layer. The installation structure facilitates the quick installation of the inspection cover and improves the efficiency of disassembly and assembly of the inspection cover. Attached Figure Description

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

[0021] Figure 1This is a schematic diagram of the overall structure of a preferred embodiment of a shaft-driven generator based on permanent magnet technology provided by the present invention;

[0022] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0023] Figure 3 This is a schematic diagram of the connection structure between the mounting plate and the generator body of the present invention;

[0024] Figure 4 for Figure 3 The diagram shown is an enlarged view of the structure of section B.

[0025] Figure 5 for Figure 3 The diagram shows an enlarged view of section C.

[0026] Figure 6 for Figure 5 The diagram shown is an enlarged view of the structure of part D.

[0027] Figure 7 This is a schematic diagram of the connection structure between the inspection cover and the junction box of the present invention;

[0028] Figure 8 for Figure 7 The diagram shown is an enlarged view of the structure of part E.

[0029] Figure 9 This is a schematic diagram of the connection structure between the slider and the mounting plate of the present invention;

[0030] Figure 10 This is a schematic diagram of the connection structure between the second lead screw and the mounting plate of the present invention.

[0031] In the diagram: 1. Generator body; 2. Protective structure; 201. Mounting plate; 202. Slider; 203. Connecting block; 204. Protective cover; 205. Guide ring; 206. Connecting ring; 207. Rotary ring; 208. First sealing ring; 209. Sealing groove; 3. Adjustment structure; 301. Guide frame; 302. Connecting plate; 303. First lead screw; 304. Second lead screw; 305. Guide shaft; 4. Lubrication structure; 401. Slip ring; 402. Second sealing ring; 403. Grease fitting; 40 4. Third lead screw; 5. Mounting structure; 501. Positioning rod; 502. Positioning sleeve; 503. Mounting block; 504. Fixing plate; 505. Guide column; 506. Spring; 507. Push plate; 6. Anti-wear structure; 601. Air ring; 602. Hose; 603. Pressure box; 604. Piston; 605. Threaded sleeve; 606. Tension spring; 607. Screw; 608. Abutment block; 609. Air inlet; 7. Junction box; 8. Inspection cover; 9. Main shaft; 10. Flange; 11. Drive shaft. Detailed Implementation

[0032] 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.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 9 and Figure 10 As shown, the shaft-driven generator based on permanent magnet technology of the present invention includes a generator body 1, a main shaft 9 rotatably connected to the generator body 1, a flange 10 fixedly connected to the main shaft 9, another flange 10 mounted on the flange 10, a drive shaft 11 fixedly connected to the other flange 10, a protective structure 2 mounted on the generator body 1, a junction box 7 fixedly connected to the generator body 1, an anti-wear structure 6 provided on the junction box 7, and a lubrication structure 4 installed between the two flanges 10; the protective structure 2 includes a mounting plate 20 fixedly connected to the generator body 1. 1. Two sliders 202 are slidably connected to the mounting plate 201. Two connecting blocks 203 are slidably connected to the sliders 202. A protective cover 204 is fixedly connected to the connecting block 203. A guide ring 205 is fixedly connected to one of the protective covers 204, and a connecting ring 206 is fixedly connected to the other protective cover 204. The guide ring 205 and the connecting ring 206 are slidably connected. A rotating ring 207 is rotatably connected to the flange 10. A first sealing ring 208 is fixedly connected to the rotating ring 207. A sealing groove 209 is provided on the protective cover 204. The position of the protective cover 204 is adjusted by the adjusting structure 3.

[0034] Specifically, such as Figure 5 , Figure 9 and Figure 10As shown, the adjustment structure 3 includes two guide frames 301 fixedly connected to the mounting plate 201 and two connecting plates 302 slidably connected between the two guide frames 301. Each pair of connecting blocks 203 is slidably connected to one connecting plate 302. A first lead screw 303 is rotatably connected to one of the guide frames 301. The connecting plate 302 is threadedly connected to the first lead screw 303. The threads at both ends of the first lead screw 303 are in opposite directions. To achieve protection, the position of the protective cover 204 needs to be adjusted. An internal hex wrench is inserted into the second lead screw 304. In the hexagonal groove, by rotating the second lead screw 304, since the threads at both ends of the second lead screw 304 are in opposite directions, the two sliders 202 can be driven to move closer synchronously on the mounting plate 201, thereby achieving position adjustment of the protective cover 204 on the mounting plate 201. Next, insert the internal hexagonal wrench into the hexagonal groove on the first lead screw 303, and by rotating the first lead screw 303, the two connecting plates 302 can be driven to slide smoothly along the guide frame 301, and simultaneously slide against the guide shaft 305. The guide shaft 305 makes the movement of the connecting plates 302 more... The mechanism stabilizes the movement, and the connecting block 203 drives the two protective covers 204 to gradually move towards the first sealing ring 208. The sliding fit between the guide ring 205 and the connecting ring 206 effectively ensures the sealing performance of the protective covers 204 during opening and closing. When the protective cover 204 moves to the preset position, the first sealing ring 208 on the rotating ring 207 will fit tightly against the sealing groove 209 of the protective cover 204. Through the combined use of the first sealing ring 208, the connecting ring 206, the guide ring 205, and the protective cover 204, external dust can be effectively blocked from entering. Inside the protective cover 204, dust is prevented from adhering between the two flanges 10 and aggravating wear. This not only improves the service life of the flanges 10, but also ensures the stability of power transmission of the generator body 1 and reduces the frequency of equipment downtime and maintenance due to flange wear. A second lead screw 304 is rotatably connected to the mounting plate 201. The slider 202 is threadedly connected to the second lead screw 304. The threads at both ends of the second lead screw 304 are in opposite directions. A guide shaft 305 is fixedly connected to another guide frame 301. The connecting plate 302 is slidably connected to the guide shaft 305.

[0035] Specifically, such as Figure 6 , Figure 9 and Figure 10As shown, the lubrication structure 4 includes a slip ring 401 slidably connected to one of the flanges 10 and a second sealing ring 402 fixedly connected to the slip ring 401. The second sealing ring 402 engages with the other flange 10. A grease nipple 403 is installed on the second sealing ring 402. By rotating the third lead screw 404, the slip ring 401 is pushed to slide smoothly on one of the flanges 10, so that the second sealing ring 402 on the slip ring 401 is tightly engaged with the other flange 10, thereby forming an initial seal. After the entire installation process is completed, the oil outlet of the grease gun is precisely aligned with the grease nipple 403. Next, press the grease gun body to inject grease into the sealing cavity between the two flanges 10. The entire grease injection operation is convenient and efficient, and the amount of grease injected can be precisely controlled. The injected grease can not only effectively reduce the friction and wear of the mating surfaces of the flanges 10 and avoid damage to the components caused by rigid connections, but also form a slight positive pressure in the gap of the flanges 10, thereby blocking the intrusion of external dust and greatly improving the service life of the flange connection. It is suitable for harsh environments with high dust concentrations, such as mines. The slip ring 401 is threaded with a third screw 404, which is threaded to the flange 10.

[0036] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, a maintenance cover 8 is installed on the junction box 7 via an installation structure 5. The installation structure 5 includes two positioning rods 501 fixedly connected to the maintenance cover 8 and two positioning sleeves 502 fixedly connected to the junction box 7. The positioning rods 501 and positioning sleeves 502 are inserted into each other. An installation block 503 is slidably connected to the positioning rods 501. The installation block 503 has an inclined surface. After the wiring work of the generator body 1 is completed, the maintenance cover 8 needs to be installed to ensure the sealing and safety of the junction box 7. During installation, the positioning rods 501 on the maintenance cover 8 are aligned with the positioning sleeves 502 on the junction box 7 and inserted. When the inclined surface of the installation block 503 abuts against the positioning sleeves 502, it will drive the fixing plate 504 along the positioning rods 501 and 502. The guide post 505 in section 01 slides, causing the mounting block 503 to retract into the positioning rod 501. After the positioning rod 501 is inserted into the designated position, the mounting block 503 will pop out under the elastic force of the spring 506. The mounting block 503 limits and fixes the positioning rod 501, quickly completing the installation of the inspection cover 8. The entire process eliminates the need for cumbersome bolt operations, improving the efficiency of disassembly and assembly of the inspection cover 8. The mounting block 503 limits the positioning rod 501. A fixing plate 504 is fixedly connected to the mounting block 503. The fixing plate 504 is slidably connected to the positioning rod 501. A push plate 507 is fixedly connected to the fixing plate 504. The guide post 505 is fixedly connected inside the positioning rod 501. Plate 504 is slidably connected to guide post 505. A spring 506 is fixedly connected between fixed plate 504 and positioning rod 501. Anti-wear structure 6 includes three air rings 601 fixedly connected to junction box 7 and hoses 602 fixedly connected to air rings 601. A booster box 603 is fixedly connected to junction box 7. The other end of hose 602 is installed on booster box 603. A piston 604 is slidably connected inside booster box 603. A threaded sleeve 605 is fixedly connected to piston 604. A screw 607 is threadedly connected to threaded sleeve 605. Screw 607 abuts against block 608. When inspection cover 8 is installed, the block 608 on its surface abuts against screw 607, pushing it forward. The screw 607 drives the threaded sleeve 605 and the piston 604 to slide inside the pressure box 603. When the piston 604 slides, the tension spring 606 extends. At the same time, the piston 604 forces the gas in the pressure box 603 into the three inflation rings 601 through the hose 602. This causes the inflation rings 601 to expand and fit tightly against the cables in the junction box 7. The inflation rings 601 not only prevent the cables from directly rubbing against the inner wall of the junction box 7 and prevent the cable insulation layer from being worn and causing a short circuit, but also prevent dust from entering the junction box 7 from the cable inlet. The stop block 608 is fixedly connected to the inspection cover 8. The piston 604 is fixedly connected to the pressure box 603 by the tension spring 606. The pressure box 603 is provided with an air inlet 609.

[0037] In use, firstly, during the installation phase, the two flanges 10 must be aligned. The flange 10 at the main shaft 9 end is aligned with the flange 10 at the drive shaft 11 end. The end of the drive shaft 11 furthest from the flange 10 must be connected to the output shaft of an external device (such as a ship propulsion system or a mining machinery transmission mechanism) to ensure stable power transmission from the main shaft 9 to the external device. After alignment, an internal hex wrench is inserted into the hexagonal groove on the third lead screw 404. By rotating the third lead screw 404, the slip ring 401 is pushed to slide smoothly on one of the flanges 10, allowing the second seal on the slip ring 401 to... Ring 402 is tightly engaged with another flange 10 to form an initial seal. After the entire installation process is completed, the grease gun outlet is precisely aligned with the grease nipple 403. Then, the grease gun body is pressed to inject grease into the sealing cavity between the two flanges 10. The entire grease injection operation is convenient and efficient, and the amount of grease can be precisely controlled. The injected grease can not only effectively reduce the friction and wear of the flange 10 mating surfaces and avoid component damage caused by rigid connection, but also form a slight positive pressure in the gap of flange 10, thereby blocking external dust from entering and greatly improving the service life of the flange connection. It is suitable for harsh environments with high dust concentrations, such as mines.

[0038] After the flange 10 is installed, the position of the protective cover 204 needs to be adjusted to achieve protection. Insert an internal hex wrench into the hexagonal groove on the second lead screw 304. By rotating the second lead screw 304, since the threads at both ends of the second lead screw 304 are opposite, the two sliders 202 can be moved closer together on the mounting plate 201, thus adjusting the position of the protective cover 204 on the mounting plate 201. Next, insert an internal hex wrench into the hexagonal groove on the first lead screw 303. By rotating the first lead screw 303, the two connecting plates 302 can be moved smoothly along the guide frame 301 and simultaneously slide against the guide shaft 305. The guide shaft 305 makes the movement of the connecting plates 302 more stable, and then, through the connecting block 203, the two protective covers 204 gradually move towards the first sealing ring 208, and the guide ring 205 and the connecting block 203... The sliding fit of the connecting ring 206 effectively ensures the sealing of the protective cover 204 during the opening and closing process. When the protective cover 204 moves to the preset position, the first sealing ring 208 on the rotating ring 207 will fit tightly with the sealing groove 209 of the protective cover 204. Through the cooperation of the first sealing ring 208, the connecting ring 206, the guide ring 205 and the protective cover 204, external dust can be effectively blocked from entering the interior of the protective cover 204, avoiding dust adhering between the two flanges 10 and aggravating wear. This not only improves the service life of the flanges 10, but also ensures the stability of the power transmission of the generator body 1 and reduces the frequency of equipment downtime and maintenance due to flange wear. In addition, when the flanges 10 rotate normally, the rotating ring 207 on the flanges 10 maintains a rotating connection with the flanges 10, which can further reduce the wear on the first sealing ring 208 and extend the service life of the sealing components.

[0039] Meanwhile, after the wiring work of the generator body 1 is completed, the inspection cover 8 needs to be installed to ensure the sealing and safety of the junction box 7. During installation, first align the positioning rod 501 on the inspection cover 8 with the positioning sleeve 502 on the junction box 7 and insert it. When the inclined surface of the mounting block 503 abuts against the positioning sleeve 502, it will drive the fixing plate 504 to slide along the guide post 505 in the positioning rod 501, causing the mounting block 503 to retract into the positioning rod 501. After the positioning rod 501 is inserted into the designated position, the mounting block 503 will be held in place by the spring 5. The cover 8 pops out under the elastic force of 06, and the positioning rod 501 is limited and fixed by the mounting block 503, quickly completing the installation of the inspection cover 8. The whole process does not require cumbersome bolt operations, improving the efficiency of disassembly and assembly of the inspection cover 8. While the inspection cover 8 is being installed, the abutment block 608 on its surface will abut against the screw 607, pushing the screw 607 to drive the threaded sleeve 605 and piston 604 to slide in the pressure box 603. When the piston 604 slides, the tension spring 606 extends, and at the same time, the piston 604 pushes the gas in the pressure box 603 through the hose. 602 is pressed into the three air rings 601, causing the air rings 601 to expand and fit tightly against the cables inside the junction box 7. The air rings 601 not only prevent direct friction between the cables and the inner wall of the junction box 7, preventing short circuits caused by wear of the cable insulation layer, but also block dust from entering the junction box 7 from the cable inlet. When it is necessary to remove the inspection cover 8 for maintenance, simply push the push plate 507, which, through the fixing plate 504, drives the mounting block 503 to compress the spring 506, thus releasing the limit on the positioning rod 501. At the same time, the piston... 604 will reset under the tension of the tension spring 606 and draw in air through the air inlet 609 on the pressurization box 603 to prepare for the next inflation operation. The inflation volume can be adjusted by the threaded engagement of the screw 607 and the threaded sleeve 605, which can adapt to cables of different thicknesses or compensate for the elastic loss of the inflation ring 601 after long-term use. This ensures that the inflation ring 601 is always in close contact with the cable, which not only ensures stable anti-wear and dustproof effects, but also avoids over-inflation that could damage the inflation ring 601, thus improving the adaptability and durability of the junction box 7 protection.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A shaft-driven generator based on permanent magnet technology, characterized in that, The device includes a generator body (1), a main shaft (9) rotatably connected to the generator body (1), a flange (10) fixedly connected to the main shaft (9), another flange (10) mounted on the flange (10), a drive shaft (11) fixedly connected to the other flange (10), a protective structure (2) mounted on the generator body (1), a junction box (7) fixedly connected to the generator body (1), an anti-wear structure (6) provided on the junction box (7), and a lubrication structure (4) installed between the two flanges (10). The protective structure (2) includes a mounting plate (201) fixedly connected to the generator body (1) and two sliders (202) slidably connected to the mounting plate (201). Two connecting blocks (203) are slidably connected to the sliders (202). A protective cover (204) is fixedly connected to the connecting blocks (203). A guide ring (205) is fixedly connected to one of the protective covers (204), and a connecting ring (206) is fixedly connected to the other protective cover (204). The guide ring (205) and the connecting ring (206) are slidably connected. A rotating ring (207) is rotatably connected to the flange (10). A first sealing ring (208) is fixedly connected to the rotating ring (207). A sealing groove (209) is provided on the protective cover (204). The position of the protective cover (204) is adjusted by the adjustment structure (3). The adjustment structure (3) includes two guide frames (301) fixedly connected to the mounting plate (201) and two connecting plates (302) slidably connected between the two guide frames (301). Each pair of connecting blocks (203) is slidably connected to one connecting plate (302). A first lead screw (303) is rotatably connected to one of the guide frames (301). The connecting plate (302) is threadedly connected to the first lead screw (303), and the threads at both ends of the first lead screw (303) are opposite in direction. A second lead screw (304) is rotatably connected to the mounting plate (201). The slider (203) is rotatably connected to the second lead screw (304). 02) Threaded connection with the second lead screw (304), the threads at both ends of the second lead screw (304) are opposite in direction, and a guide shaft (305) is fixedly connected to another guide frame (301), and the connecting plate (302) is slidably connected to the guide shaft (305); the lubrication structure (4) includes a slip ring (401) slidably connected to one of the flanges (10) and a second sealing ring (402) fixedly connected to the slip ring (401), the second sealing ring (402) engaging with the other flange (10), and a grease nipple (403) installed on the second sealing ring (402); The wear-resistant structure (6) includes three air rings (601) fixedly connected to the junction box (7) and a hose (602) fixedly connected to the air rings (601). A booster box (603) is fixedly connected to the junction box (7). The other end of the hose (602) is installed on the booster box (603). A piston (604) is slidably connected inside the booster box (603).

2. The shaft-driven generator based on permanent magnet technology according to claim 1, characterized in that: The slip ring (401) is threaded with a third lead screw (404), which is threaded to the flange (10).

3. A shaft-driven generator based on permanent magnet technology according to claim 1, characterized in that: The junction box (7) is equipped with an inspection cover (8) via an installation structure (5). The installation structure (5) includes two positioning rods (501) fixedly connected to the inspection cover (8) and two positioning sleeves (502) fixedly connected to the junction box (7). The positioning rods (501) and the positioning sleeves (502) are inserted into each other. An installation block (503) is slidably connected to the positioning rods (501). The installation block (503) has an inclined surface and limits the positioning rods (501).

4. A shaft-driven generator based on permanent magnet technology according to claim 3, characterized in that: A fixing plate (504) is fixedly connected to the mounting block (503). The fixing plate (504) is slidably connected to the positioning rod (501). A push plate (507) is fixedly connected to the fixing plate (504). A guide post (505) is fixedly connected inside the positioning rod (501). The fixing plate (504) is slidably connected to the guide post (505). A spring (506) is fixedly connected between the fixing plate (504) and the positioning rod (501).

5. A shaft-driven generator based on permanent magnet technology according to claim 1, characterized in that: A threaded sleeve (605) is fixedly connected to the piston (604), and a screw (607) is threadedly connected to the threaded sleeve (605). The screw (607) abuts against the stop block (608), and the stop block (608) is fixedly connected to the inspection cover (8).

6. A shaft-driven generator based on permanent magnet technology according to claim 5, characterized in that: A tension spring (606) is fixedly connected between the piston (604) and the booster box (603), and the booster box (603) is provided with an air inlet (609).

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